2272 files changed, 39769 insertions, 39761 deletions

diff --git a/src/Makefile.am b/src/Makefile.am
index ac839d52a..37c902e65 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -3,16 +3,24 @@ AM_CPPFLAGS = -I$(top_srcdir)/src/include
 if HAVE_POSTGRESQL
   PQ_DIR = pq
 endif
+if HAVE_LIBCURL
+  BANK_LIB = bank-lib
+else
+if HAVE_LIBGNURL
+  BANK_LIB = bank-lib
+endif
+endif
+
 if WALLET_ONLY
 SUBDIRS = include util
 else
 
-SUBDIRS = include util $(PQ_DIR) bank-lib wire mintdb mint mint-tools
+SUBDIRS = include util $(PQ_DIR) $(BANK_LIB) wire exchangedb exchange exchange-tools
 if HAVE_LIBCURL
- SUBDIRS += mint-lib
+ SUBDIRS += exchange-lib
 else
 if HAVE_LIBGNURL
- SUBDIRS += mint-lib
+ SUBDIRS += exchange-lib
 endif
 endif
 
diff --git a/src/bank-lib/bank_api_context.c b/src/bank-lib/bank_api_context.c
index a47b4072a..2e4083cae 100644
--- a/src/bank-lib/bank_api_context.c
+++ b/src/bank-lib/bank_api_context.c
@@ -390,7 +390,7 @@ TALER_BANK_fini (struct TALER_BANK_Context *ctx)
 /**
  * Obtain the URL to use for an API request.
  *
- * @param h the mint handle to query
+ * @param h the exchange handle to query
  * @param path Taler API path (i.e. "/reserve/withdraw")
  * @return the full URI to use with cURL
  */
diff --git a/src/bank-lib/bank_api_json.h b/src/bank-lib/bank_api_json.h
index 2ecaf8ef1..92fe0b1d4 100644
--- a/src/bank-lib/bank_api_json.h
+++ b/src/bank-lib/bank_api_json.h
@@ -14,7 +14,7 @@
   TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
 */
 /**
- * @file mint-lib/mint_api_json.h
+ * @file exchange-lib/exchange_api_json.h
  * @brief functions to parse incoming requests (JSON snippets)
  * @author Florian Dold
  * @author Benedikt Mueller
@@ -349,4 +349,4 @@ BAJ_spec_rsa_signature (const char *name,
 
 
 
-/* end of mint_api_json.h */
+/* end of exchange_api_json.h */
diff --git a/src/exchange-lib/Makefile.am b/src/exchange-lib/Makefile.am
new file mode 100644
index 000000000..f5e58b401
--- /dev/null
+++ b/src/exchange-lib/Makefile.am
@@ -0,0 +1,62 @@
+# This Makefile.am is in the public domain
+AM_CPPFLAGS = -I$(top_srcdir)/src/include
+
+if USE_COVERAGE
+  AM_CFLAGS = --coverage -O0
+  XLIB = -lgcov
+endif
+
+lib_LTLIBRARIES = \
+  libtalerexchange.la
+
+libtalerexchange_la_LDFLAGS = \
+  -version-info 0:0:0 \
+  -no-undefined
+
+libtalerexchange_la_SOURCES = \
+  exchange_api_common.c exchange_api_common.h \
+  exchange_api_context.c exchange_api_context.h \
+  exchange_api_json.c exchange_api_json.h \
+  exchange_api_handle.c exchange_api_handle.h \
+  exchange_api_admin.c \
+  exchange_api_deposit.c \
+  exchange_api_deposit_wtid.c \
+  exchange_api_refresh.c \
+  exchange_api_refresh_link.c \
+  exchange_api_reserve.c \
+  exchange_api_wire.c \
+  exchange_api_wire_deposits.c
+
+libtalerexchange_la_LIBADD = \
+  -lgnunetutil \
+  -ljansson \
+  $(XLIB)
+
+if HAVE_LIBCURL
+libtalerexchange_la_LIBADD += -lcurl
+else
+if HAVE_LIBGNURL
+libtalerexchange_la_LIBADD += -lgnurl
+endif
+endif
+
+check_PROGRAMS = \
+  test_exchange_api
+
+TESTS = \
+  $(check_PROGRAMS)
+
+test_exchange_api_SOURCES = \
+  test_exchange_api.c
+test_exchange_api_LDADD = \
+  libtalerexchange.la \
+  $(LIBGCRYPT_LIBS) \
+  $(top_builddir)/src/util/libtalerutil.la \
+  -lgnunetutil \
+  -ljansson
+
+EXTRA_DIST = \
+  test-exchange-home/config/exchange-common.conf \
+  test-exchange-home/master.priv \
+  test-exchange-home/denomkeys/ \
+  test-exchange-home/signkeys/
diff --git a/src/exchange-lib/afl-generate.sh b/src/exchange-lib/afl-generate.sh
new file mode 100644
index 000000000..6ae833087
--- /dev/null
+++ b/src/exchange-lib/afl-generate.sh
@@ -0,0 +1,34 @@
+#!/bin/sh
+#
+# This file is part of TALER
+# Copyright (C) 2015 GNUnet e.V.
+#
+#  TALER is free software; you can redistribute it and/or modify it under the
+#  terms of the GNU Affero General Public License as published by the Free Software
+#  Foundation; either version 3, or (at your option) any later version.
+#
+#  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+#  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+#
+#  You should have received a copy of the GNU Affero General Public License along with
+#  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+#
+#
+# This will generate testcases in a directory 'afl-tests', which can then
+# be moved into src/exchange/afl-tests/ to be run during exchange-testing.
+#
+# This script uses American Fuzzy Loop (AFL) to fuzz the exchange to
+# automatically create tests with good coverage.  You must install
+# AFL and set AFL_HOME to the directory where AFL is installed
+# before running.  Also, a directory "baseline/" should exist with
+# templates for inputs for AFL to fuzz.  These can be generated
+# by running wireshark on loopback while running 'make check' in
+# this directory.  Save each HTTP request to a new file.
+#
+# Note that you want to switch 'TESTRUN = NO' and pre-init the
+# database before running this, otherwise it will be awfully slow.
+#
+# Must be run from this directory.
+#
+$AFL_HOME/afl-fuzz -i baseline/ -m 250 -o afl-tests/ -f /tmp/afl-input taler-exchange-httpd -f /tmp/afl-input -d test-exchange-home/ -C
diff --git a/src/mint-lib/baseline/admin_add_incoming.req b/src/exchange-lib/baseline/admin_add_incoming.req
index 677678b5d..677678b5d 100644
--- a/src/mint-lib/baseline/admin_add_incoming.req
+++ b/src/exchange-lib/baseline/admin_add_incoming.req
diff --git a/src/mint-lib/baseline/deposit.req b/src/exchange-lib/baseline/deposit.req
index f50d83e40..f50d83e40 100644
--- a/src/mint-lib/baseline/deposit.req
+++ b/src/exchange-lib/baseline/deposit.req
diff --git a/src/mint-lib/baseline/keys.req b/src/exchange-lib/baseline/keys.req
index a9503a864..a9503a864 100644
--- a/src/mint-lib/baseline/keys.req
+++ b/src/exchange-lib/baseline/keys.req
diff --git a/src/mint-lib/baseline/refresh_link.req b/src/exchange-lib/baseline/refresh_link.req
index acf3dff51..acf3dff51 100644
--- a/src/mint-lib/baseline/refresh_link.req
+++ b/src/exchange-lib/baseline/refresh_link.req
diff --git a/src/mint-lib/baseline/refresh_melt.req b/src/exchange-lib/baseline/refresh_melt.req
index 98b5b6389..98b5b6389 100644
--- a/src/mint-lib/baseline/refresh_melt.req
+++ b/src/exchange-lib/baseline/refresh_melt.req
diff --git a/src/mint-lib/baseline/refresh_reveal.req b/src/exchange-lib/baseline/refresh_reveal.req
index 3fb143960..3fb143960 100644
--- a/src/mint-lib/baseline/refresh_reveal.req
+++ b/src/exchange-lib/baseline/refresh_reveal.req
diff --git a/src/mint-lib/baseline/reserve_status.req b/src/exchange-lib/baseline/reserve_status.req
index 4f988f669..4f988f669 100644
--- a/src/mint-lib/baseline/reserve_status.req
+++ b/src/exchange-lib/baseline/reserve_status.req
diff --git a/src/mint-lib/baseline/reserve_withdraw.req b/src/exchange-lib/baseline/reserve_withdraw.req
index 484950250..484950250 100644
--- a/src/mint-lib/baseline/reserve_withdraw.req
+++ b/src/exchange-lib/baseline/reserve_withdraw.req
diff --git a/src/mint-lib/baseline/wire.req b/src/exchange-lib/baseline/wire.req
index a4f1d0749..a4f1d0749 100644
--- a/src/mint-lib/baseline/wire.req
+++ b/src/exchange-lib/baseline/wire.req
diff --git a/src/mint-lib/baseline/wire_sepa.req b/src/exchange-lib/baseline/wire_sepa.req
index 80d3d4619..80d3d4619 100644
--- a/src/mint-lib/baseline/wire_sepa.req
+++ b/src/exchange-lib/baseline/wire_sepa.req
diff --git a/src/mint-lib/baseline/wire_test.req b/src/exchange-lib/baseline/wire_test.req
index 684352c96..684352c96 100644
--- a/src/mint-lib/baseline/wire_test.req
+++ b/src/exchange-lib/baseline/wire_test.req
diff --git a/src/exchange-lib/exchange_api_admin.c b/src/exchange-lib/exchange_api_admin.c
new file mode 100644
index 000000000..3dcbb80e9
--- /dev/null
+++ b/src/exchange-lib/exchange_api_admin.c
@@ -0,0 +1,254 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see
+  <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange-lib/exchange_api_admin.c
+ * @brief Implementation of the /admin/ requests of the exchange's HTTP API
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <curl/curl.h>
+#include <jansson.h>
+#include <microhttpd.h> /* just for HTTP status codes */
+#include <gnunet/gnunet_util_lib.h>
+#include "taler_exchange_service.h"
+#include "exchange_api_json.h"
+#include "exchange_api_context.h"
+#include "exchange_api_handle.h"
+#include "taler_signatures.h"
+
+
+/**
+ * @brief An admin/add/incoming Handle
+ */
+struct TALER_EXCHANGE_AdminAddIncomingHandle
+{
+
+  /**
+   * The connection to exchange this request handle will use
+   */
+  struct TALER_EXCHANGE_Handle *exchange;
+
+  /**
+   * The url for this request.
+   */
+  char *url;
+
+  /**
+   * JSON encoding of the request to POST.
+   */
+  char *json_enc;
+
+  /**
+   * Handle for the request.
+   */
+  struct MAC_Job *job;
+
+  /**
+   * HTTP headers for the request.
+   */
+  struct curl_slist *headers;
+
+  /**
+   * Function to call with the result.
+   */
+  TALER_EXCHANGE_AdminAddIncomingResultCallback cb;
+
+  /**
+   * Closure for @a cb.
+   */
+  void *cb_cls;
+
+  /**
+   * Download buffer
+   */
+  struct MAC_DownloadBuffer db;
+
+};
+
+
+/**
+ * Function called when we're done processing the
+ * HTTP /admin/add/incoming request.
+ *
+ * @param cls the `struct TALER_EXCHANGE_AdminAddIncomingHandle`
+ * @param eh the curl request handle
+ */
+static void
+handle_admin_add_incoming_finished (void *cls,
+                                    CURL *eh)
+{
+  struct TALER_EXCHANGE_AdminAddIncomingHandle *aai = cls;
+  long response_code;
+  json_t *json;
+
+  aai->job = NULL;
+  json = MAC_download_get_result (&aai->db,
+                                  eh,
+                                  &response_code);
+  switch (response_code)
+  {
+  case 0:
+    break;
+  case MHD_HTTP_OK:
+    break;
+  case MHD_HTTP_BAD_REQUEST:
+    /* This should never happen, either us or the exchange is buggy
+       (or API version conflict); just pass JSON reply to the application */
+    break;
+  case MHD_HTTP_FORBIDDEN:
+    /* Access denied */
+    break;
+  case MHD_HTTP_UNAUTHORIZED:
+    /* Nothing really to verify, exchange says one of the signatures is
+       invalid; as we checked them, this should never happen, we
+       should pass the JSON reply to the application */
+    break;
+  case MHD_HTTP_NOT_FOUND:
+    /* Nothing really to verify, this should never
+       happen, we should pass the JSON reply to the application */
+    break;
+  case MHD_HTTP_INTERNAL_SERVER_ERROR:
+    /* Server had an internal issue; we should retry, but this API
+       leaves this to the application */
+    break;
+  default:
+    /* unexpected response code */
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u\n",
+                response_code);
+    GNUNET_break (0);
+    response_code = 0;
+    break;
+  }
+  aai->cb (aai->cb_cls,
+           response_code,
+           json);
+  json_decref (json);
+  TALER_EXCHANGE_admin_add_incoming_cancel (aai);
+}
+
+
+/**
+ * Notify the exchange that we have received an incoming transaction
+ * which fills a reserve.  Note that this API is an administrative
+ * API and thus not accessible to typical exchange clients, but only
+ * to the operators of the exchange.
+ *
+ * @param exchange the exchange handle; the exchange must be ready to operate
+ * @param reserve_pub public key of the reserve
+ * @param amount amount that was deposited
+ * @param execution_date when did we receive the amount
+ * @param wire wire details
+ * @param res_cb the callback to call when the final result for this request is available
+ * @param res_cb_cls closure for the above callback
+ * @return NULL
+ *         if the inputs are invalid (i.e. invalid amount).
+ *         In this case, the callback is not called.
+ */
+struct TALER_EXCHANGE_AdminAddIncomingHandle *
+TALER_EXCHANGE_admin_add_incoming (struct TALER_EXCHANGE_Handle *exchange,
+                               const struct TALER_ReservePublicKeyP *reserve_pub,
+                               const struct TALER_Amount *amount,
+                               struct GNUNET_TIME_Absolute execution_date,
+                               const json_t *wire,
+                               TALER_EXCHANGE_AdminAddIncomingResultCallback res_cb,
+                               void *res_cb_cls)
+{
+  struct TALER_EXCHANGE_AdminAddIncomingHandle *aai;
+  struct TALER_EXCHANGE_Context *ctx;
+  json_t *admin_obj;
+  CURL *eh;
+
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_round_abs_time (&execution_date));
+  if (GNUNET_YES !=
+      MAH_handle_is_ready (exchange))
+  {
+    GNUNET_break (0);
+    return NULL;
+  }
+  admin_obj = json_pack ("{s:o, s:o," /* reserve_pub/amount */
+                         " s:o, s:O}", /* execution_Date/wire */
+                         "reserve_pub", TALER_json_from_data (reserve_pub,
+                                                               sizeof (*reserve_pub)),
+                         "amount", TALER_json_from_amount (amount),
+                         "execution_date", TALER_json_from_abs (execution_date),
+                         "wire", wire);
+  aai = GNUNET_new (struct TALER_EXCHANGE_AdminAddIncomingHandle);
+  aai->exchange = exchange;
+  aai->cb = res_cb;
+  aai->cb_cls = res_cb_cls;
+  aai->url = MAH_path_to_url (exchange, "/admin/add/incoming");
+
+  eh = curl_easy_init ();
+  GNUNET_assert (NULL != (aai->json_enc =
+                          json_dumps (admin_obj,
+                                      JSON_COMPACT)));
+  json_decref (admin_obj);
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_URL,
+                                   aai->url));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_POSTFIELDS,
+                                   aai->json_enc));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_POSTFIELDSIZE,
+                                   strlen (aai->json_enc)));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEFUNCTION,
+                                   &MAC_download_cb));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEDATA,
+                                   &aai->db));
+  ctx = MAH_handle_to_context (exchange);
+  aai->job = MAC_job_add (ctx,
+                          eh,
+                          GNUNET_YES,
+                          &handle_admin_add_incoming_finished,
+                          aai);
+  return aai;
+}
+
+
+/**
+ * Cancel an add incoming.  This function cannot be used on a request
+ * handle if a response is already served for it.
+ *
+ * @param aai the admin add incoming request handle
+ */
+void
+TALER_EXCHANGE_admin_add_incoming_cancel (struct TALER_EXCHANGE_AdminAddIncomingHandle *aai)
+{
+  if (NULL != aai->job)
+  {
+    MAC_job_cancel (aai->job);
+    aai->job = NULL;
+  }
+  curl_slist_free_all (aai->headers);
+  GNUNET_free_non_null (aai->db.buf);
+  GNUNET_free (aai->url);
+  GNUNET_free (aai->json_enc);
+  GNUNET_free (aai);
+}
+
+
+/* end of exchange_api_admin.c */
diff --git a/src/exchange-lib/exchange_api_common.c b/src/exchange-lib/exchange_api_common.c
new file mode 100644
index 000000000..805c3fc4e
--- /dev/null
+++ b/src/exchange-lib/exchange_api_common.c
@@ -0,0 +1,194 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see
+  <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange-lib/exchange_api_common.c
+ * @brief common functions for the exchange API
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "exchange_api_common.h"
+#include "exchange_api_json.h"
+#include "exchange_api_context.h"
+#include "exchange_api_handle.h"
+#include "taler_signatures.h"
+
+
+/**
+ * Verify a coins transaction history as returned by the exchange.
+ *
+ * @param currency expected currency for the coin
+ * @param coin_pub public key of the coin
+ * @param history history of the coin in json encoding
+ * @param[out] total how much of the coin has been spent according to @a history
+ * @return #GNUNET_OK if @a history is valid, #GNUNET_SYSERR if not
+ */
+int
+TALER_EXCHANGE_verify_coin_history_ (const char *currency,
+                                 const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                                 json_t *history,
+                                 struct TALER_Amount *total)
+{
+  size_t len;
+  size_t off;
+
+  if (NULL == history)
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  len = json_array_size (history);
+  if (0 == len)
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  TALER_amount_get_zero (currency,
+                         total);
+  for (off=0;off<len;off++)
+  {
+    json_t *transaction;
+    struct TALER_Amount amount;
+    struct TALER_CoinSpendSignatureP sig;
+    void *details;
+    size_t details_size;
+    const char *type;
+    struct MAJ_Specification spec[] = {
+      MAJ_spec_amount ("amount",
+                       &amount),
+      MAJ_spec_string ("type",
+                       &type),
+      MAJ_spec_fixed_auto ("signature",
+                           &sig),
+      MAJ_spec_varsize ("details",
+                        &details,
+                        &details_size),
+      MAJ_spec_end
+    };
+
+    transaction = json_array_get (history,
+                                  off);
+    if (GNUNET_OK !=
+        MAJ_parse_json (transaction,
+                        spec))
+    {
+      GNUNET_break_op (0);
+      return GNUNET_SYSERR;
+    }
+    if (0 == strcasecmp (type,
+                         "DEPOSIT"))
+    {
+      const struct TALER_DepositRequestPS *dr;
+      struct TALER_Amount dr_amount;
+
+      if (details_size != sizeof (struct TALER_DepositRequestPS))
+      {
+        GNUNET_break_op (0);
+        MAJ_parse_free (spec);
+        return GNUNET_SYSERR;
+      }
+      dr = (const struct TALER_DepositRequestPS *) details;
+      if (details_size != ntohl (dr->purpose.size))
+      {
+        GNUNET_break_op (0);
+        MAJ_parse_free (spec);
+        return GNUNET_SYSERR;
+      }
+      if (GNUNET_OK !=
+          GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_DEPOSIT,
+                                      &dr->purpose,
+                                      &sig.eddsa_signature,
+                                      &coin_pub->eddsa_pub))
+        {
+        GNUNET_break_op (0);
+        MAJ_parse_free (spec);
+        return GNUNET_SYSERR;
+      }
+
+       // FIXME: check sig!
+      TALER_amount_ntoh (&dr_amount,
+                         &dr->amount_with_fee);
+      if (0 != TALER_amount_cmp (&dr_amount,
+                                 &amount))
+        {
+          GNUNET_break (0);
+          MAJ_parse_free (spec);
+          return GNUNET_SYSERR;
+        }
+    }
+    else if (0 == strcasecmp (type,
+                              "MELT"))
+    {
+      const struct TALER_RefreshMeltCoinAffirmationPS *rm;
+      struct TALER_Amount rm_amount;
+
+      if (details_size != sizeof (struct TALER_RefreshMeltCoinAffirmationPS))
+      {
+        GNUNET_break_op (0);
+        MAJ_parse_free (spec);
+        return GNUNET_SYSERR;
+      }
+      rm = (const struct TALER_RefreshMeltCoinAffirmationPS *) details;
+      if (details_size != ntohl (rm->purpose.size))
+      {
+        GNUNET_break_op (0);
+        MAJ_parse_free (spec);
+        return GNUNET_SYSERR;
+      }
+      if (GNUNET_OK !=
+          GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_MELT,
+                                      &rm->purpose,
+                                      &sig.eddsa_signature,
+                                      &coin_pub->eddsa_pub))
+      {
+        GNUNET_break_op (0);
+        MAJ_parse_free (spec);
+        return GNUNET_SYSERR;
+      }
+      TALER_amount_ntoh (&rm_amount,
+                         &rm->amount_with_fee);
+      if (0 != TALER_amount_cmp (&rm_amount,
+                                 &amount))
+      {
+        GNUNET_break_op (0);
+        MAJ_parse_free (spec);
+        return GNUNET_SYSERR;
+      }
+    }
+    else
+    {
+      /* signature not supported, new version on server? */
+      GNUNET_break_op (0);
+      MAJ_parse_free (spec);
+      return GNUNET_SYSERR;
+    }
+    if (GNUNET_OK !=
+        TALER_amount_add (total,
+                          total,
+                          &amount))
+    {
+      /* overflow in history already!? inconceivable! Bad exchange! */
+      GNUNET_break_op (0);
+      MAJ_parse_free (spec);
+      return GNUNET_SYSERR;
+    }
+    MAJ_parse_free (spec);
+  }
+  return GNUNET_OK;
+}
+
+
+/* end of exchange_api_common.c */
diff --git a/src/exchange-lib/exchange_api_common.h b/src/exchange-lib/exchange_api_common.h
new file mode 100644
index 000000000..49f486b00
--- /dev/null
+++ b/src/exchange-lib/exchange_api_common.h
@@ -0,0 +1,41 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see
+  <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange-lib/exchange_api_common.h
+ * @brief common functions for the exchange API
+ * @author Christian Grothoff
+ */
+#include <jansson.h>
+#include <gnunet/gnunet_util_lib.h>
+#include "taler_exchange_service.h"
+
+/**
+ * Verify a coins transaction history as returned by the exchange.
+ *
+ * @param currency expected currency for the coin
+ * @param coin_pub public key of the coin
+ * @param history history of the coin in json encoding
+ * @param[out] total how much of the coin has been spent according to @a history
+ * @return #GNUNET_OK if @a history is valid, #GNUNET_SYSERR if not
+ */
+int
+TALER_EXCHANGE_verify_coin_history_ (const char *currency,
+                                 const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                                 json_t *history,
+                                 struct TALER_Amount *total);
+
+/* end of exchange_api_common.h */
diff --git a/src/exchange-lib/exchange_api_context.c b/src/exchange-lib/exchange_api_context.c
new file mode 100644
index 000000000..544719001
--- /dev/null
+++ b/src/exchange-lib/exchange_api_context.c
@@ -0,0 +1,537 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see
+  <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange-lib/exchange_api_context.c
+ * @brief Implementation of the context part of the exchange's HTTP API
+ * @author Sree Harsha Totakura <sreeharsha@totakura.in>
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <curl/curl.h>
+#include "taler_exchange_service.h"
+#include "exchange_api_context.h"
+
+
+/**
+ * Log error related to CURL operations.
+ *
+ * @param type log level
+ * @param function which function failed to run
+ * @param code what was the curl error code
+ */
+#define CURL_STRERROR(type, function, code)      \
+ GNUNET_log (type,                               \
+             "Curl function `%s' has failed at `%s:%d' with error: %s\n", \
+             function, __FILE__, __LINE__, curl_easy_strerror (code));
+
+/**
+ * Print JSON parsing related error information
+ */
+#define JSON_WARN(error)                                                \
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,                              \
+                "JSON parsing failed at %s:%u: %s (%s)\n",              \
+                __FILE__, __LINE__, error.text, error.source)
+
+
+/**
+ * Failsafe flag. Raised if our constructor fails to initialize
+ * the Curl library.
+ */
+static int TALER_EXCHANGE_curl_fail;
+
+
+/**
+ * Jobs are CURL requests running within a `struct TALER_EXCHANGE_Context`.
+ */
+struct MAC_Job
+{
+
+  /**
+   * We keep jobs in a DLL.
+   */
+  struct MAC_Job *next;
+
+  /**
+   * We keep jobs in a DLL.
+   */
+  struct MAC_Job *prev;
+
+  /**
+   * Easy handle of the job.
+   */
+  CURL *easy_handle;
+
+  /**
+   * Context this job runs in.
+   */
+  struct TALER_EXCHANGE_Context *ctx;
+
+  /**
+   * Function to call upon completion.
+   */
+  MAC_JobCompletionCallback jcc;
+
+  /**
+   * Closure for @e jcc.
+   */
+  void *jcc_cls;
+
+};
+
+
+/**
+ * Context
+ */
+struct TALER_EXCHANGE_Context
+{
+  /**
+   * Curl multi handle
+   */
+  CURLM *multi;
+
+  /**
+   * Curl share handle
+   */
+  CURLSH *share;
+
+  /**
+   * We keep jobs in a DLL.
+   */
+  struct MAC_Job *jobs_head;
+
+  /**
+   * We keep jobs in a DLL.
+   */
+  struct MAC_Job *jobs_tail;
+
+  /**
+   * HTTP header "application/json", created once and used
+   * for all requests that need it.
+   */
+  struct curl_slist *json_header;
+
+};
+
+
+/**
+ * Initialise this library.  This function should be called before using any of
+ * the following functions.
+ *
+ * @return library context
+ */
+struct TALER_EXCHANGE_Context *
+TALER_EXCHANGE_init ()
+{
+  struct TALER_EXCHANGE_Context *ctx;
+  CURLM *multi;
+  CURLSH *share;
+
+  if (TALER_EXCHANGE_curl_fail)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Curl was not initialised properly\n");
+    return NULL;
+  }
+  if (NULL == (multi = curl_multi_init ()))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Failed to create a Curl multi handle\n");
+    return NULL;
+  }
+  if (NULL == (share = curl_share_init ()))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Failed to create a Curl share handle\n");
+    return NULL;
+  }
+  ctx = GNUNET_new (struct TALER_EXCHANGE_Context);
+  ctx->multi = multi;
+  ctx->share = share;
+  GNUNET_assert (NULL != (ctx->json_header =
+                          curl_slist_append (NULL,
+                                             "Content-Type: application/json")));
+  return ctx;
+}
+
+
+/**
+ * Schedule a CURL request to be executed and call the given @a jcc
+ * upon its completion.  Note that the context will make use of the
+ * CURLOPT_PRIVATE facility of the CURL @a eh.  Applications can
+ * instead use #MAC_easy_to_closure to extract the @a jcc_cls argument
+ * from a valid @a eh afterwards.
+ *
+ * This function modifies the CURL handle to add the
+ * "Content-Type: application/json" header if @a add_json is set.
+ *
+ * @param ctx context to execute the job in
+ * @param eh curl easy handle for the request, will
+ *           be executed AND cleaned up
+ * @param add_json add "application/json" content type header
+ * @param jcc callback to invoke upon completion
+ * @param jcc_cls closure for @a jcc
+ */
+struct MAC_Job *
+MAC_job_add (struct TALER_EXCHANGE_Context *ctx,
+             CURL *eh,
+             int add_json,
+             MAC_JobCompletionCallback jcc,
+             void *jcc_cls)
+{
+  struct MAC_Job *job;
+
+  if (GNUNET_YES == add_json)
+    GNUNET_assert (CURLE_OK ==
+                   curl_easy_setopt (eh,
+                                     CURLOPT_HTTPHEADER,
+                                     ctx->json_header));
+
+  job = GNUNET_new (struct MAC_Job);
+  job->easy_handle = eh;
+  job->ctx = ctx;
+  job->jcc = jcc;
+  job->jcc_cls = jcc_cls;
+  GNUNET_CONTAINER_DLL_insert (ctx->jobs_head,
+                               ctx->jobs_tail,
+                               job);
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_PRIVATE,
+                                   job));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_SHARE,
+                                   ctx->share));
+  GNUNET_assert (CURLM_OK ==
+                 curl_multi_add_handle (ctx->multi,
+                                        eh));
+  return job;
+}
+
+
+/**
+ * Obtain the `jcc_cls` argument from an `eh` that was
+ * given to #MAC_job_add().
+ *
+ * @param eh easy handle that was used
+ * @return the `jcc_cls` that was given to #MAC_job_add().
+ */
+void *
+MAC_easy_to_closure (CURL *eh)
+{
+  struct MAC_Job *job;
+
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_getinfo (eh,
+                                    CURLINFO_PRIVATE,
+                                    (char **) &job));
+  return job->jcc_cls;
+}
+
+
+/**
+ * Cancel a job.  Must only be called before the job completion
+ * callback is called for the respective job.
+ *
+ * @param job job to cancel
+ */
+void
+MAC_job_cancel (struct MAC_Job *job)
+{
+  struct TALER_EXCHANGE_Context *ctx = job->ctx;
+
+  GNUNET_CONTAINER_DLL_remove (ctx->jobs_head,
+                               ctx->jobs_tail,
+                               job);
+  GNUNET_assert (CURLM_OK ==
+                 curl_multi_remove_handle (ctx->multi,
+                                           job->easy_handle));
+  curl_easy_cleanup (job->easy_handle);
+  GNUNET_free (job);
+}
+
+
+/**
+ * Run the main event loop for the Taler interaction.
+ *
+ * @param ctx the library context
+ */
+void
+TALER_EXCHANGE_perform (struct TALER_EXCHANGE_Context *ctx)
+{
+  CURLMsg *cmsg;
+  struct MAC_Job *job;
+  int n_running;
+  int n_completed;
+
+  (void) curl_multi_perform (ctx->multi,
+                             &n_running);
+  while (NULL != (cmsg = curl_multi_info_read (ctx->multi,
+                                               &n_completed)))
+  {
+    /* Only documented return value is CURLMSG_DONE */
+    GNUNET_break (CURLMSG_DONE == cmsg->msg);
+    GNUNET_assert (CURLE_OK ==
+                   curl_easy_getinfo (cmsg->easy_handle,
+                                      CURLINFO_PRIVATE,
+                                      (char **) &job));
+    GNUNET_assert (job->ctx == ctx);
+    job->jcc (job->jcc_cls,
+              cmsg->easy_handle);
+    MAC_job_cancel (job);
+  }
+}
+
+
+/**
+ * Obtain the information for a select() call to wait until
+ * #TALER_EXCHANGE_perform() is ready again.  Note that calling
+ * any other TALER_EXCHANGE-API may also imply that the library
+ * is again ready for #TALER_EXCHANGE_perform().
+ *
+ * Basically, a client should use this API to prepare for select(),
+ * then block on select(), then call #TALER_EXCHANGE_perform() and then
+ * start again until the work with the context is done.
+ *
+ * This function will NOT zero out the sets and assumes that @a max_fd
+ * and @a timeout are already set to minimal applicable values.  It is
+ * safe to give this API FD-sets and @a max_fd and @a timeout that are
+ * already initialized to some other descriptors that need to go into
+ * the select() call.
+ *
+ * @param ctx context to get the event loop information for
+ * @param read_fd_set will be set for any pending read operations
+ * @param write_fd_set will be set for any pending write operations
+ * @param except_fd_set is here because curl_multi_fdset() has this argument
+ * @param max_fd set to the highest FD included in any set;
+ *        if the existing sets have no FDs in it, the initial
+ *        value should be "-1". (Note that `max_fd + 1` will need
+ *        to be passed to select().)
+ * @param timeout set to the timeout in milliseconds (!); -1 means
+ *        no timeout (NULL, blocking forever is OK), 0 means to
+ *        proceed immediately with #TALER_EXCHANGE_perform().
+ */
+void
+TALER_EXCHANGE_get_select_info (struct TALER_EXCHANGE_Context *ctx,
+                            fd_set *read_fd_set,
+                            fd_set *write_fd_set,
+                            fd_set *except_fd_set,
+                            int *max_fd,
+                            long *timeout)
+{
+  long to;
+  int m;
+
+  m = -1;
+  GNUNET_assert (CURLM_OK ==
+                 curl_multi_fdset (ctx->multi,
+                                   read_fd_set,
+                                   write_fd_set,
+                                   except_fd_set,
+                                   &m));
+  to = *timeout;
+  *max_fd = GNUNET_MAX (m, *max_fd);
+  GNUNET_assert (CURLM_OK ==
+                 curl_multi_timeout (ctx->multi,
+                                     &to));
+
+  /* Only if what we got back from curl is smaller than what we
+     already had (-1 == infinity!), then update timeout */
+  if ( (to < *timeout) &&
+       (-1 != to) )
+    *timeout = to;
+  if ( (-1 == (*timeout)) &&
+       (NULL != ctx->jobs_head) )
+    *timeout = to;
+}
+
+
+/**
+ * Cleanup library initialisation resources.  This function should be called
+ * after using this library to cleanup the resources occupied during library's
+ * initialisation.
+ *
+ * @param ctx the library context
+ */
+void
+TALER_EXCHANGE_fini (struct TALER_EXCHANGE_Context *ctx)
+{
+  /* all jobs must have been cancelled at this time, assert this */
+  GNUNET_assert (NULL == ctx->jobs_head);
+  curl_share_cleanup (ctx->share);
+  curl_multi_cleanup (ctx->multi);
+  curl_slist_free_all (ctx->json_header);
+  GNUNET_free (ctx);
+}
+
+
+/**
+ * Callback used when downloading the reply to an HTTP request.
+ * Just appends all of the data to the `buf` in the
+ * `struct MAC_DownloadBuffer` for further processing. The size of
+ * the download is limited to #GNUNET_MAX_MALLOC_CHECKED, if
+ * the download exceeds this size, we abort with an error.
+ *
+ * @param bufptr data downloaded via HTTP
+ * @param size size of an item in @a bufptr
+ * @param nitems number of items in @a bufptr
+ * @param cls the `struct KeysRequest`
+ * @return number of bytes processed from @a bufptr
+ */
+size_t
+MAC_download_cb (char *bufptr,
+                 size_t size,
+                 size_t nitems,
+                 void *cls)
+{
+  struct MAC_DownloadBuffer *db = cls;
+  size_t msize;
+  void *buf;
+
+  if (0 == size * nitems)
+  {
+    /* Nothing (left) to do */
+    return 0;
+  }
+  msize = size * nitems;
+  if ( (msize + db->buf_size) >= GNUNET_MAX_MALLOC_CHECKED)
+  {
+    db->eno = ENOMEM;
+    return 0; /* signals an error to curl */
+  }
+  db->buf = GNUNET_realloc (db->buf,
+                            db->buf_size + msize);
+  buf = db->buf + db->buf_size;
+  memcpy (buf, bufptr, msize);
+  db->buf_size += msize;
+  return msize;
+}
+
+
+/**
+ * Obtain information about the final result about the
+ * HTTP download. If the download was successful, parses
+ * the JSON in the @a db and returns it. Also returns
+ * the HTTP @a response_code.  If the download failed,
+ * the return value is NULL.  The response code is set
+ * in any case, on download errors to zero.
+ *
+ * Calling this function also cleans up @a db.
+ *
+ * @param db download buffer
+ * @param eh CURL handle (to get the response code)
+ * @param[out] response_code set to the HTTP response code
+ *             (or zero if we aborted the download, i.e.
+ *              because the response was too big, or if
+ *              the JSON we received was malformed).
+ * @return NULL if downloading a JSON reply failed
+ */
+json_t *
+MAC_download_get_result (struct MAC_DownloadBuffer *db,
+                         CURL *eh,
+                         long *response_code)
+{
+  json_t *json;
+  json_error_t error;
+  char *ct;
+
+  if ( (CURLE_OK !=
+        curl_easy_getinfo (eh,
+                           CURLINFO_CONTENT_TYPE,
+                           &ct)) ||
+       (NULL == ct) ||
+       (0 != strcasecmp (ct,
+                         "application/json")) )
+  {
+    /* No content type or explicitly not JSON, refuse to parse
+       (but keep response code) */
+    if (CURLE_OK !=
+        curl_easy_getinfo (eh,
+                           CURLINFO_RESPONSE_CODE,
+                           response_code))
+    {
+      /* unexpected error... */
+      GNUNET_break (0);
+      *response_code = 0;
+    }
+    return NULL;
+  }
+
+  json = NULL;
+  if (0 == db->eno)
+  {
+    json = json_loadb (db->buf,
+                       db->buf_size,
+                       JSON_REJECT_DUPLICATES | JSON_DISABLE_EOF_CHECK,
+                       &error);
+    if (NULL == json)
+    {
+      JSON_WARN (error);
+      *response_code = 0;
+    }
+  }
+  GNUNET_free_non_null (db->buf);
+  db->buf = NULL;
+  db->buf_size = 0;
+  if (NULL != json)
+  {
+    if (CURLE_OK !=
+        curl_easy_getinfo (eh,
+                           CURLINFO_RESPONSE_CODE,
+                           response_code))
+    {
+      /* unexpected error... */
+      GNUNET_break (0);
+      *response_code = 0;
+    }
+  }
+  return json;
+}
+
+
+/**
+ * Initial global setup logic, specifically runs the Curl setup.
+ */
+__attribute__ ((constructor))
+void
+TALER_EXCHANGE_constructor__ (void)
+{
+  CURLcode ret;
+
+  if (CURLE_OK != (ret = curl_global_init (CURL_GLOBAL_DEFAULT)))
+  {
+    CURL_STRERROR (GNUNET_ERROR_TYPE_ERROR,
+                   "curl_global_init",
+                   ret);
+    TALER_EXCHANGE_curl_fail = 1;
+  }
+}
+
+
+/**
+ * Cleans up after us, specifically runs the Curl cleanup.
+ */
+__attribute__ ((destructor))
+void
+TALER_EXCHANGE_destructor__ (void)
+{
+  if (TALER_EXCHANGE_curl_fail)
+    return;
+  curl_global_cleanup ();
+}
+
+/* end of exchange_api_context.c */
diff --git a/src/exchange-lib/exchange_api_context.h b/src/exchange-lib/exchange_api_context.h
new file mode 100644
index 000000000..3c54bfe07
--- /dev/null
+++ b/src/exchange-lib/exchange_api_context.h
@@ -0,0 +1,169 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see
+  <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange-lib/exchange_api_context.h
+ * @brief Internal interface to the context part of the exchange's HTTP API
+ * @author Sree Harsha Totakura <sreeharsha@totakura.in>
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <curl/curl.h>
+#include <gnunet/gnunet_util_lib.h>
+#include "taler_exchange_service.h"
+#include "taler_signatures.h"
+
+
+/**
+ * Entry in the context's job queue.
+ */
+struct MAC_Job;
+
+/**
+ * Function to call upon completion of a job.
+ *
+ * @param cls closure
+ * @param eh original easy handle (for inspection)
+ */
+typedef void
+(*MAC_JobCompletionCallback)(void *cls,
+                             CURL *eh);
+
+
+/**
+ * Schedule a CURL request to be executed and call the given @a jcc
+ * upon its completion. Note that the context will make use of the
+ * CURLOPT_PRIVATE facility of the CURL @a eh.  Applications can
+ * instead use #MAC_easy_to_closure to extract the @a jcc_cls argument
+ * from a valid @a eh afterwards.
+ *
+ * This function modifies the CURL handle to add the
+ * "Content-Type: application/json" header if @a add_json is set.
+ *
+ * @param ctx context to execute the job in
+ * @param eh curl easy handle for the request, will
+ *           be executed AND cleaned up
+ * @param add_json add "application/json" content type header
+ * @param jcc callback to invoke upon completion
+ * @param jcc_cls closure for @a jcc
+ */
+struct MAC_Job *
+MAC_job_add (struct TALER_EXCHANGE_Context *ctx,
+             CURL *eh,
+             int add_json,
+             MAC_JobCompletionCallback jcc,
+             void *jcc_cls);
+
+
+/**
+ * Obtain the `jcc_cls` argument from an `eh` that was
+ * given to #MAC_job_add().
+ *
+ * @param eh easy handle that was used
+ * @return the `jcc_cls` that was given to #MAC_job_add().
+ */
+void *
+MAC_easy_to_closure (CURL *eh);
+
+
+/**
+ * Cancel a job.  Must only be called before the job completion
+ * callback is called for the respective job.
+ *
+ * @param job job to cancel
+ */
+void
+MAC_job_cancel (struct MAC_Job *job);
+
+
+/**
+ * @brief Buffer data structure we use to buffer the HTTP download
+ * before giving it to the JSON parser.
+ */
+struct MAC_DownloadBuffer
+{
+
+  /**
+   * Download buffer
+   */
+  void *buf;
+
+  /**
+   * The size of the download buffer
+   */
+  size_t buf_size;
+
+  /**
+   * Error code (based on libc errno) if we failed to download
+   * (i.e. response too large).
+   */
+  int eno;
+
+};
+
+
+/**
+ * Callback used when downloading the reply to an HTTP request.
+ * Just appends all of the data to the `buf` in the
+ * `struct MAC_DownloadBuffer` for further processing. The size of
+ * the download is limited to #GNUNET_MAX_MALLOC_CHECKED, if
+ * the download exceeds this size, we abort with an error.
+ *
+ * Should be used by the various routines as the
+ * CURLOPT_WRITEFUNCTION.  A `struct MAC_DownloadBuffer` needs to be
+ * passed to the CURLOPT_WRITEDATA.
+ *
+ * Afterwards, `eno` needs to be checked to ensure that the download
+ * completed correctly.
+ *
+ * @param bufptr data downloaded via HTTP
+ * @param size size of an item in @a bufptr
+ * @param nitems number of items in @a bufptr
+ * @param cls the `struct KeysRequest`
+ * @return number of bytes processed from @a bufptr
+ */
+size_t
+MAC_download_cb (char *bufptr,
+                 size_t size,
+                 size_t nitems,
+                 void *cls);
+
+
+/**
+ * Obtain information about the final result about the
+ * HTTP download. If the download was successful, parses
+ * the JSON in the @a db and returns it. Also returns
+ * the HTTP @a response_code.  If the download failed,
+ * the return value is NULL.  The response code is set
+ * in any case, on download errors to zero.
+ *
+ * Calling this function also cleans up @a db.
+ *
+ * @param db download buffer
+ * @param eh CURL handle (to get the response code)
+ * @param[out] response_code set to the HTTP response code
+ *             (or zero if we aborted the download, i.e.
+ *              because the response was too big, or if
+ *              the JSON we received was malformed).
+ * @return NULL if downloading a JSON reply failed
+ */
+json_t *
+MAC_download_get_result (struct MAC_DownloadBuffer *db,
+                         CURL *eh,
+                         long *response_code);
+
+
+/* end of exchange_api_context.h */
diff --git a/src/exchange-lib/exchange_api_deposit.c b/src/exchange-lib/exchange_api_deposit.c
new file mode 100644
index 000000000..deba4877d
--- /dev/null
+++ b/src/exchange-lib/exchange_api_deposit.c
@@ -0,0 +1,569 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see
+  <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange-lib/exchange_api_deposit.c
+ * @brief Implementation of the /deposit request of the exchange's HTTP API
+ * @author Sree Harsha Totakura <sreeharsha@totakura.in>
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <curl/curl.h>
+#include <jansson.h>
+#include <microhttpd.h> /* just for HTTP status codes */
+#include <gnunet/gnunet_util_lib.h>
+#include "taler_exchange_service.h"
+#include "exchange_api_common.h"
+#include "exchange_api_json.h"
+#include "exchange_api_context.h"
+#include "exchange_api_handle.h"
+#include "taler_signatures.h"
+
+
+/**
+ * @brief A Deposit Handle
+ */
+struct TALER_EXCHANGE_DepositHandle
+{
+
+  /**
+   * The connection to exchange this request handle will use
+   */
+  struct TALER_EXCHANGE_Handle *exchange;
+
+  /**
+   * The url for this request.
+   */
+  char *url;
+
+  /**
+   * JSON encoding of the request to POST.
+   */
+  char *json_enc;
+
+  /**
+   * Handle for the request.
+   */
+  struct MAC_Job *job;
+
+  /**
+   * Function to call with the result.
+   */
+  TALER_EXCHANGE_DepositResultCallback cb;
+
+  /**
+   * Closure for @a cb.
+   */
+  void *cb_cls;
+
+  /**
+   * Download buffer
+   */
+  struct MAC_DownloadBuffer db;
+
+  /**
+   * Information the exchange should sign in response.
+   */
+  struct TALER_DepositConfirmationPS depconf;
+
+  /**
+   * Value of the /deposit transaction, including fee.
+   */
+  struct TALER_Amount amount_with_fee;
+
+  /**
+   * Total value of the coin being transacted with.
+   */
+  struct TALER_Amount coin_value;
+
+};
+
+
+/**
+ * Verify that the signature on the "200 OK" response
+ * from the exchange is valid.
+ *
+ * @param dh deposit handle
+ * @param json json reply with the signature
+ * @return #GNUNET_OK if the signature is valid, #GNUNET_SYSERR if not
+ */
+static int
+verify_deposit_signature_ok (const struct TALER_EXCHANGE_DepositHandle *dh,
+                             json_t *json)
+{
+  struct TALER_ExchangeSignatureP exchange_sig;
+  struct TALER_ExchangePublicKeyP exchange_pub;
+  const struct TALER_EXCHANGE_Keys *key_state;
+  struct MAJ_Specification spec[] = {
+    MAJ_spec_fixed_auto ("sig", &exchange_sig),
+    MAJ_spec_fixed_auto ("pub", &exchange_pub),
+    MAJ_spec_end
+  };
+
+  if (GNUNET_OK !=
+      MAJ_parse_json (json,
+                      spec))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  key_state = TALER_EXCHANGE_get_keys (dh->exchange);
+  if (GNUNET_OK !=
+      TALER_EXCHANGE_test_signing_key (key_state,
+                                   &exchange_pub))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_EXCHANGE_CONFIRM_DEPOSIT,
+                                  &dh->depconf.purpose,
+                                  &exchange_sig.eddsa_signature,
+                                  &exchange_pub.eddsa_pub))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Verify that the signatures on the "403 FORBIDDEN" response from the
+ * exchange demonstrating customer double-spending are valid.
+ *
+ * @param dh deposit handle
+ * @param json json reply with the signature(s) and transaction history
+ * @return #GNUNET_OK if the signature(s) is valid, #GNUNET_SYSERR if not
+ */
+static int
+verify_deposit_signature_forbidden (const struct TALER_EXCHANGE_DepositHandle *dh,
+                                    json_t *json)
+{
+  json_t *history;
+  struct TALER_Amount total;
+
+  history = json_object_get (json,
+                             "history");
+  if (GNUNET_OK !=
+      TALER_EXCHANGE_verify_coin_history_ (dh->coin_value.currency,
+                                       &dh->depconf.coin_pub,
+                                       history,
+                                       &total))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_OK !=
+      TALER_amount_add (&total,
+                        &total,
+                        &dh->amount_with_fee))
+  {
+    /* clearly not OK if our transaction would have caused
+       the overflow... */
+    return GNUNET_OK;
+  }
+
+  if (0 >= TALER_amount_cmp (&total,
+                             &dh->coin_value))
+  {
+    /* transaction should have still fit */
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+  /* everything OK, proof of double-spending was provided */
+  return GNUNET_OK;
+}
+
+
+/**
+ * Function called when we're done processing the
+ * HTTP /deposit request.
+ *
+ * @param cls the `struct TALER_EXCHANGE_DepositHandle`
+ * @param eh the curl request handle
+ */
+static void
+handle_deposit_finished (void *cls,
+                         CURL *eh)
+{
+  struct TALER_EXCHANGE_DepositHandle *dh = cls;
+  long response_code;
+  json_t *json;
+
+  dh->job = NULL;
+  json = MAC_download_get_result (&dh->db,
+                                  eh,
+                                  &response_code);
+  switch (response_code)
+  {
+  case 0:
+    break;
+  case MHD_HTTP_OK:
+    if (GNUNET_OK !=
+        verify_deposit_signature_ok (dh,
+                                     json))
+    {
+      GNUNET_break_op (0);
+      response_code = 0;
+    }
+    break;
+  case MHD_HTTP_BAD_REQUEST:
+    /* This should never happen, either us or the exchange is buggy
+       (or API version conflict); just pass JSON reply to the application */
+    break;
+  case MHD_HTTP_FORBIDDEN:
+    /* Double spending; check signatures on transaction history */
+    if (GNUNET_OK !=
+        verify_deposit_signature_forbidden (dh,
+                                            json))
+    {
+      GNUNET_break_op (0);
+      response_code = 0;
+    }
+    break;
+  case MHD_HTTP_UNAUTHORIZED:
+    /* Nothing really to verify, exchange says one of the signatures is
+       invalid; as we checked them, this should never happen, we
+       should pass the JSON reply to the application */
+    break;
+  case MHD_HTTP_NOT_FOUND:
+    /* Nothing really to verify, this should never
+       happen, we should pass the JSON reply to the application */
+    break;
+  case MHD_HTTP_INTERNAL_SERVER_ERROR:
+    /* Server had an internal issue; we should retry, but this API
+       leaves this to the application */
+    break;
+  default:
+    /* unexpected response code */
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u\n",
+                response_code);
+    GNUNET_break (0);
+    response_code = 0;
+    break;
+  }
+  dh->cb (dh->cb_cls,
+          response_code,
+          json);
+  json_decref (json);
+  TALER_EXCHANGE_deposit_cancel (dh);
+}
+
+
+/**
+ * Verify signature information about the deposit.
+ *
+ * @param dki public key information
+ * @param amount the amount to be deposited
+ * @param h_wire hash of the merchant’s account details
+ * @param h_contract hash of the contact of the merchant with the customer (further details are never disclosed to the exchange)
+ * @param coin_pub coin’s public key
+ * @param denom_pub denomination key with which the coin is signed
+ * @param denom_sig exchange’s unblinded signature of the coin
+ * @param timestamp timestamp when the contract was finalized, must match approximately the current time of the exchange
+ * @param transaction_id transaction id for the transaction between merchant and customer
+ * @param merchant_pub the public key of the merchant (used to identify the merchant for refund requests)
+ * @param refund_deadline date until which the merchant can issue a refund to the customer via the exchange (can be zero if refunds are not allowed)
+ * @param coin_sig the signature made with purpose #TALER_SIGNATURE_WALLET_COIN_DEPOSIT made by the customer with the coin’s private key.
+ * @return #GNUNET_OK if signatures are OK, #GNUNET_SYSERR if not
+ */
+static int
+verify_signatures (const struct TALER_EXCHANGE_DenomPublicKey *dki,
+                   const struct TALER_Amount *amount,
+                   const struct GNUNET_HashCode *h_wire,
+                   const struct GNUNET_HashCode *h_contract,
+                   const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                   const struct TALER_DenominationSignature *denom_sig,
+                   const struct TALER_DenominationPublicKey *denom_pub,
+                   struct GNUNET_TIME_Absolute timestamp,
+                   uint64_t transaction_id,
+                   const struct TALER_MerchantPublicKeyP *merchant_pub,
+                   struct GNUNET_TIME_Absolute refund_deadline,
+                   const struct TALER_CoinSpendSignatureP *coin_sig)
+{
+  struct TALER_DepositRequestPS dr;
+  struct TALER_CoinPublicInfo coin_info;
+
+  dr.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_DEPOSIT);
+  dr.purpose.size = htonl (sizeof (struct TALER_DepositRequestPS));
+  dr.h_contract = *h_contract;
+  dr.h_wire = *h_wire;
+  dr.timestamp = GNUNET_TIME_absolute_hton (timestamp);
+  dr.refund_deadline = GNUNET_TIME_absolute_hton (refund_deadline);
+  dr.transaction_id = GNUNET_htonll (transaction_id);
+  TALER_amount_hton (&dr.amount_with_fee,
+                     amount);
+  TALER_amount_hton (&dr.deposit_fee,
+                     &dki->fee_deposit);
+  dr.merchant = *merchant_pub;
+  dr.coin_pub = *coin_pub;
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_DEPOSIT,
+                                  &dr.purpose,
+                                  &coin_sig->eddsa_signature,
+                                  &coin_pub->eddsa_pub))
+  {
+    TALER_LOG_WARNING ("Invalid coin signature on /deposit request\n");
+    {
+      char *s;
+      s = TALER_amount_to_string (amount);
+      TALER_LOG_DEBUG ("... amount_with_fee was %s\n", s);
+      GNUNET_free (s);
+      s = TALER_amount_to_string (&dki->fee_deposit);
+      TALER_LOG_DEBUG ("... deposit_fee was %s\n", s);
+      GNUNET_free (s);
+    }
+
+    return GNUNET_SYSERR;
+  }
+
+  /* check coin signature */
+  coin_info.coin_pub = *coin_pub;
+  coin_info.denom_pub = *denom_pub;
+  coin_info.denom_sig = *denom_sig;
+  if (GNUNET_YES !=
+      TALER_test_coin_valid (&coin_info))
+  {
+    TALER_LOG_WARNING ("Invalid coin passed for /deposit\n");
+    return GNUNET_SYSERR;
+  }
+  if (0 < TALER_amount_cmp (&dki->fee_deposit,
+                            amount))
+  {
+    TALER_LOG_WARNING ("Deposit amount smaller than fee\n");
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Submit a deposit permission to the exchange and get the exchange's response.
+ * Note that while we return the response verbatim to the caller for
+ * further processing, we do already verify that the response is
+ * well-formed (i.e. that signatures included in the response are all
+ * valid).  If the exchange's reply is not well-formed, we return an
+ * HTTP status code of zero to @a cb.
+ *
+ * We also verify that the @a coin_sig is valid for this deposit
+ * request, and that the @a ub_sig is a valid signature for @a
+ * coin_pub.  Also, the @a exchange must be ready to operate (i.e.  have
+ * finished processing the /keys reply).  If either check fails, we do
+ * NOT initiate the transaction with the exchange and instead return NULL.
+ *
+ * @param exchange the exchange handle; the exchange must be ready to operate
+ * @param amount the amount to be deposited
+ * @param wire_deadline date until which the merchant would like the exchange to settle the balance (advisory, the exchange cannot be
+ *        forced to settle in the past or upon very short notice, but of course a well-behaved exchange will limit aggregation based on the advice received)
+ * @param wire_details the merchant’s account details, in a format supported by the exchange
+ * @param h_contract hash of the contact of the merchant with the customer (further details are never disclosed to the exchange)
+ * @param coin_pub coin’s public key
+ * @param denom_pub denomination key with which the coin is signed
+ * @param denom_sig exchange’s unblinded signature of the coin
+ * @param timestamp timestamp when the contract was finalized, must match approximately the current time of the exchange
+ * @param transaction_id transaction id for the transaction between merchant and customer
+ * @param merchant_pub the public key of the merchant (used to identify the merchant for refund requests)
+ * @param refund_deadline date until which the merchant can issue a refund to the customer via the exchange (can be zero if refunds are not allowed)
+ * @param coin_sig the signature made with purpose #TALER_SIGNATURE_WALLET_COIN_DEPOSIT made by the customer with the coin’s private key.
+ * @param cb the callback to call when a reply for this request is available
+ * @param cb_cls closure for the above callback
+ * @return a handle for this request; NULL if the inputs are invalid (i.e.
+ *         signatures fail to verify).  In this case, the callback is not called.
+ */
+struct TALER_EXCHANGE_DepositHandle *
+TALER_EXCHANGE_deposit (struct TALER_EXCHANGE_Handle *exchange,
+                    const struct TALER_Amount *amount,
+                    struct GNUNET_TIME_Absolute wire_deadline,
+                    json_t *wire_details,
+                    const struct GNUNET_HashCode *h_contract,
+                    const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                    const struct TALER_DenominationSignature *denom_sig,
+                    const struct TALER_DenominationPublicKey *denom_pub,
+                    struct GNUNET_TIME_Absolute timestamp,
+                    uint64_t transaction_id,
+                    const struct TALER_MerchantPublicKeyP *merchant_pub,
+                    struct GNUNET_TIME_Absolute refund_deadline,
+                    const struct TALER_CoinSpendSignatureP *coin_sig,
+                    TALER_EXCHANGE_DepositResultCallback cb,
+                    void *cb_cls)
+{
+  const struct TALER_EXCHANGE_Keys *key_state;
+  const struct TALER_EXCHANGE_DenomPublicKey *dki;
+  struct TALER_EXCHANGE_DepositHandle *dh;
+  struct TALER_EXCHANGE_Context *ctx;
+  json_t *deposit_obj;
+  CURL *eh;
+  struct GNUNET_HashCode h_wire;
+  struct TALER_Amount amount_without_fee;
+
+  (void) TALER_round_abs_time (&wire_deadline);
+  if (GNUNET_YES !=
+      MAH_handle_is_ready (exchange))
+  {
+    GNUNET_break (0);
+    return NULL;
+  }
+  /* initialize h_wire */
+  if (GNUNET_OK !=
+      TALER_hash_json (wire_details,
+                       &h_wire))
+  {
+    GNUNET_break (0);
+    return NULL;
+  }
+  key_state = TALER_EXCHANGE_get_keys (exchange);
+  dki = TALER_EXCHANGE_get_denomination_key (key_state,
+                                         denom_pub);
+  if (NULL == dki)
+  {
+    TALER_LOG_WARNING ("Denomination key unknown to exchange\n");
+    return NULL;
+  }
+  if (GNUNET_SYSERR ==
+      TALER_amount_subtract (&amount_without_fee,
+                             amount,
+                             &dki->fee_deposit))
+  {
+    GNUNET_break (0);
+    return NULL;
+  }
+
+  if (GNUNET_OK !=
+      verify_signatures (dki,
+                         amount,
+                         &h_wire,
+                         h_contract,
+                         coin_pub,
+                         denom_sig,
+                         denom_pub,
+                         timestamp,
+                         transaction_id,
+                         merchant_pub,
+                         refund_deadline,
+                         coin_sig))
+  {
+    GNUNET_break_op (0);
+    return NULL;
+  }
+
+  deposit_obj = json_pack ("{s:o, s:O," /* f/wire */
+                           " s:o, s:o," /* H_wire, H_contract */
+                           " s:o, s:o," /* coin_pub, denom_pub */
+                           " s:o, s:o," /* ub_sig, timestamp */
+                           " s:I, s:o," /* transaction id, merchant_pub */
+                           " s:o, s:o," /* refund_deadline, wire_deadline */
+                           " s:o}",     /* coin_sig */
+                           "f", TALER_json_from_amount (amount),
+                           "wire", wire_details,
+                           "H_wire", TALER_json_from_data (&h_wire,
+                                                           sizeof (h_wire)),
+                           "H_contract", TALER_json_from_data (h_contract,
+                                                               sizeof (struct GNUNET_HashCode)),
+                           "coin_pub", TALER_json_from_data (coin_pub,
+                                                             sizeof (*coin_pub)),
+                           "denom_pub", TALER_json_from_rsa_public_key (denom_pub->rsa_public_key),
+                           "ub_sig", TALER_json_from_rsa_signature (denom_sig->rsa_signature),
+                           "timestamp", TALER_json_from_abs (timestamp),
+                           "transaction_id", (json_int_t) transaction_id,
+                           "merchant_pub", TALER_json_from_data (merchant_pub,
+                                                                 sizeof (*merchant_pub)),
+                           "refund_deadline", TALER_json_from_abs (refund_deadline),
+                           "edate", TALER_json_from_abs (wire_deadline),
+                           "coin_sig", TALER_json_from_data (coin_sig,
+                                                             sizeof (*coin_sig))
+                           );
+
+  dh = GNUNET_new (struct TALER_EXCHANGE_DepositHandle);
+  dh->exchange = exchange;
+  dh->cb = cb;
+  dh->cb_cls = cb_cls;
+  dh->url = MAH_path_to_url (exchange, "/deposit");
+  dh->depconf.purpose.size = htonl (sizeof (struct TALER_DepositConfirmationPS));
+  dh->depconf.purpose.purpose = htonl (TALER_SIGNATURE_EXCHANGE_CONFIRM_DEPOSIT);
+  dh->depconf.h_contract = *h_contract;
+  dh->depconf.h_wire = h_wire;
+  dh->depconf.transaction_id = GNUNET_htonll (transaction_id);
+  dh->depconf.timestamp = GNUNET_TIME_absolute_hton (timestamp);
+  dh->depconf.refund_deadline = GNUNET_TIME_absolute_hton (refund_deadline);
+  TALER_amount_hton (&dh->depconf.amount_without_fee,
+                     &amount_without_fee);
+  dh->depconf.coin_pub = *coin_pub;
+  dh->depconf.merchant = *merchant_pub;
+  dh->amount_with_fee = *amount;
+  dh->coin_value = dki->value;
+
+  eh = curl_easy_init ();
+  GNUNET_assert (NULL != (dh->json_enc =
+                          json_dumps (deposit_obj,
+                                      JSON_COMPACT)));
+  json_decref (deposit_obj);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "URL for deposit: `%s'\n",
+              dh->url);
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_URL,
+                                   dh->url));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_POSTFIELDS,
+                                   dh->json_enc));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_POSTFIELDSIZE,
+                                   strlen (dh->json_enc)));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEFUNCTION,
+                                   &MAC_download_cb));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEDATA,
+                                   &dh->db));
+  ctx = MAH_handle_to_context (exchange);
+  dh->job = MAC_job_add (ctx,
+                         eh,
+                         GNUNET_YES,
+                         &handle_deposit_finished,
+                         dh);
+  return dh;
+}
+
+
+/**
+ * Cancel a deposit permission request.  This function cannot be used
+ * on a request handle if a response is already served for it.
+ *
+ * @param deposit the deposit permission request handle
+ */
+void
+TALER_EXCHANGE_deposit_cancel (struct TALER_EXCHANGE_DepositHandle *deposit)
+{
+  if (NULL != deposit->job)
+  {
+    MAC_job_cancel (deposit->job);
+    deposit->job = NULL;
+  }
+  GNUNET_free_non_null (deposit->db.buf);
+  GNUNET_free (deposit->url);
+  GNUNET_free (deposit->json_enc);
+  GNUNET_free (deposit);
+}
+
+
+/* end of exchange_api_deposit.c */
diff --git a/src/exchange-lib/exchange_api_deposit_wtid.c b/src/exchange-lib/exchange_api_deposit_wtid.c
new file mode 100644
index 000000000..83beb03ae
--- /dev/null
+++ b/src/exchange-lib/exchange_api_deposit_wtid.c
@@ -0,0 +1,379 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see
+  <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange-lib/exchange_api_deposit_wtid.c
+ * @brief Implementation of the /deposit/wtid request of the exchange's HTTP API
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <curl/curl.h>
+#include <jansson.h>
+#include <microhttpd.h> /* just for HTTP status codes */
+#include <gnunet/gnunet_util_lib.h>
+#include "taler_exchange_service.h"
+#include "exchange_api_common.h"
+#include "exchange_api_json.h"
+#include "exchange_api_context.h"
+#include "exchange_api_handle.h"
+#include "taler_signatures.h"
+
+
+/**
+ * @brief A Deposit Wtid Handle
+ */
+struct TALER_EXCHANGE_DepositWtidHandle
+{
+
+  /**
+   * The connection to exchange this request handle will use
+   */
+  struct TALER_EXCHANGE_Handle *exchange;
+
+  /**
+   * The url for this request.
+   */
+  char *url;
+
+  /**
+   * JSON encoding of the request to POST.
+   */
+  char *json_enc;
+
+  /**
+   * Handle for the request.
+   */
+  struct MAC_Job *job;
+
+  /**
+   * Function to call with the result.
+   */
+  TALER_EXCHANGE_DepositWtidCallback cb;
+
+  /**
+   * Closure for @a cb.
+   */
+  void *cb_cls;
+
+  /**
+   * Download buffer
+   */
+  struct MAC_DownloadBuffer db;
+
+  /**
+   * Information the exchange should sign in response.
+   * (with pre-filled fields from the request).
+   */
+  struct TALER_ConfirmWirePS depconf;
+
+};
+
+
+/**
+ * Verify that the signature on the "200 OK" response
+ * from the exchange is valid.
+ *
+ * @param dwh deposit wtid handle
+ * @param json json reply with the signature
+ * @return #GNUNET_OK if the signature is valid, #GNUNET_SYSERR if not
+ */
+static int
+verify_deposit_wtid_signature_ok (const struct TALER_EXCHANGE_DepositWtidHandle *dwh,
+                                  json_t *json)
+{
+  struct TALER_ExchangeSignatureP exchange_sig;
+  struct TALER_ExchangePublicKeyP exchange_pub;
+  const struct TALER_EXCHANGE_Keys *key_state;
+  struct MAJ_Specification spec[] = {
+    MAJ_spec_fixed_auto ("exchange_sig", &exchange_sig),
+    MAJ_spec_fixed_auto ("exchange_pub", &exchange_pub),
+    MAJ_spec_end
+  };
+
+  if (GNUNET_OK !=
+      MAJ_parse_json (json,
+                      spec))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  key_state = TALER_EXCHANGE_get_keys (dwh->exchange);
+  if (GNUNET_OK !=
+      TALER_EXCHANGE_test_signing_key (key_state,
+                                   &exchange_pub))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_EXCHANGE_CONFIRM_WIRE,
+                                  &dwh->depconf.purpose,
+                                  &exchange_sig.eddsa_signature,
+                                  &exchange_pub.eddsa_pub))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Function called when we're done processing the
+ * HTTP /deposit/wtid request.
+ *
+ * @param cls the `struct TALER_EXCHANGE_DepositWtidHandle`
+ * @param eh the curl request handle
+ */
+static void
+handle_deposit_wtid_finished (void *cls,
+                              CURL *eh)
+{
+  struct TALER_EXCHANGE_DepositWtidHandle *dwh = cls;
+  long response_code;
+  json_t *json;
+  const struct TALER_WireTransferIdentifierRawP *wtid = NULL;
+  struct GNUNET_TIME_Absolute execution_time = GNUNET_TIME_UNIT_FOREVER_ABS;
+  const struct TALER_Amount *coin_contribution = NULL;
+  struct TALER_Amount coin_contribution_s;
+
+  dwh->job = NULL;
+  json = MAC_download_get_result (&dwh->db,
+                                  eh,
+                                  &response_code);
+  switch (response_code)
+  {
+  case 0:
+    break;
+  case MHD_HTTP_OK:
+    {
+      struct MAJ_Specification spec[] = {
+        MAJ_spec_fixed_auto ("wtid", &dwh->depconf.wtid),
+        MAJ_spec_absolute_time ("execution_time", &execution_time),
+        MAJ_spec_amount ("coin_contribution", &coin_contribution_s),
+        MAJ_spec_end
+      };
+
+      if (GNUNET_OK !=
+          MAJ_parse_json (json,
+                          spec))
+      {
+        GNUNET_break_op (0);
+        response_code = 0;
+        break;
+      }
+      wtid = &dwh->depconf.wtid;
+      dwh->depconf.execution_time = GNUNET_TIME_absolute_hton (execution_time);
+      TALER_amount_hton (&dwh->depconf.coin_contribution,
+                         &coin_contribution_s);
+      coin_contribution = &coin_contribution_s;
+      if (GNUNET_OK !=
+          verify_deposit_wtid_signature_ok (dwh,
+                                            json))
+      {
+        GNUNET_break_op (0);
+        response_code = 0;
+      }
+    }
+    break;
+  case MHD_HTTP_ACCEPTED:
+    {
+      /* Transaction known, but not executed yet */
+      struct MAJ_Specification spec[] = {
+        MAJ_spec_absolute_time ("execution_time", &execution_time),
+        MAJ_spec_end
+      };
+
+      if (GNUNET_OK !=
+          MAJ_parse_json (json,
+                          spec))
+      {
+        GNUNET_break_op (0);
+        response_code = 0;
+        break;
+      }
+    }
+    break;
+  case MHD_HTTP_BAD_REQUEST:
+    /* This should never happen, either us or the exchange is buggy
+       (or API version conflict); just pass JSON reply to the application */
+    break;
+  case MHD_HTTP_UNAUTHORIZED:
+    /* Nothing really to verify, exchange says one of the signatures is
+       invalid; as we checked them, this should never happen, we
+       should pass the JSON reply to the application */
+    break;
+  case MHD_HTTP_NOT_FOUND:
+    /* Exchange does not know about transaction;
+       we should pass the reply to the application */
+    break;
+  case MHD_HTTP_INTERNAL_SERVER_ERROR:
+    /* Server had an internal issue; we should retry, but this API
+       leaves this to the application */
+    break;
+  default:
+    /* unexpected response code */
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u\n",
+                response_code);
+    GNUNET_break (0);
+    response_code = 0;
+    break;
+  }
+  dwh->cb (dwh->cb_cls,
+           response_code,
+           json,
+           wtid,
+           execution_time,
+           coin_contribution);
+  json_decref (json);
+  TALER_EXCHANGE_deposit_wtid_cancel (dwh);
+}
+
+
+/**
+ * Obtain wire transfer details about an existing deposit operation.
+ *
+ * @param exchange the exchange to query
+ * @param merchant_priv the merchant's private key
+ * @param h_wire hash of merchant's wire transfer details
+ * @param h_contract hash of the contract
+ * @param coin_pub public key of the coin
+ * @param transaction_id transaction identifier
+ * @param cb function to call with the result
+ * @param cb_cls closure for @a cb
+ * @return handle to abort request
+ */
+struct TALER_EXCHANGE_DepositWtidHandle *
+TALER_EXCHANGE_deposit_wtid (struct TALER_EXCHANGE_Handle *exchange,
+                         const struct TALER_MerchantPrivateKeyP *merchant_priv,
+                         const struct GNUNET_HashCode *h_wire,
+                         const struct GNUNET_HashCode *h_contract,
+                         const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                         uint64_t transaction_id,
+                         TALER_EXCHANGE_DepositWtidCallback cb,
+                         void *cb_cls)
+{
+  struct TALER_DepositTrackPS dtp;
+  struct TALER_MerchantSignatureP merchant_sig;
+  struct TALER_EXCHANGE_DepositWtidHandle *dwh;
+  struct TALER_EXCHANGE_Context *ctx;
+  json_t *deposit_wtid_obj;
+  CURL *eh;
+
+  if (GNUNET_YES !=
+      MAH_handle_is_ready (exchange))
+  {
+    GNUNET_break (0);
+    return NULL;
+  }
+  dtp.purpose.purpose = htonl (TALER_SIGNATURE_MERCHANT_DEPOSIT_WTID);
+  dtp.purpose.size = htonl (sizeof (dtp));
+  dtp.h_contract = *h_contract;
+  dtp.h_wire = *h_wire;
+  dtp.transaction_id = GNUNET_htonll (transaction_id);
+  GNUNET_CRYPTO_eddsa_key_get_public (&merchant_priv->eddsa_priv,
+                                      &dtp.merchant.eddsa_pub);
+
+  dtp.coin_pub = *coin_pub;
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_CRYPTO_eddsa_sign (&merchant_priv->eddsa_priv,
+                                           &dtp.purpose,
+                                           &merchant_sig.eddsa_sig));
+  deposit_wtid_obj = json_pack ("{s:o, s:o," /* H_wire, H_contract */
+                                " s:o, s:I," /* coin_pub, transaction_id */
+                                " s:o, s:o}", /* merchant_pub, merchant_sig */
+                                "H_wire", TALER_json_from_data (h_wire,
+                                                                sizeof (struct GNUNET_HashCode)),
+                                "H_contract", TALER_json_from_data (h_contract,
+                                                                    sizeof (struct GNUNET_HashCode)),
+                                "coin_pub", TALER_json_from_data (coin_pub,
+                                                                  sizeof (*coin_pub)),
+                                "transaction_id", (json_int_t) transaction_id,
+                                "merchant_pub", TALER_json_from_data (&dtp.merchant,
+                                                                      sizeof (struct TALER_MerchantPublicKeyP)),
+                                "merchant_sig", TALER_json_from_data (&merchant_sig,
+                                                                      sizeof (merchant_sig)));
+
+  dwh = GNUNET_new (struct TALER_EXCHANGE_DepositWtidHandle);
+  dwh->exchange = exchange;
+  dwh->cb = cb;
+  dwh->cb_cls = cb_cls;
+  dwh->url = MAH_path_to_url (exchange, "/deposit/wtid");
+  dwh->depconf.purpose.size = htonl (sizeof (struct TALER_DepositConfirmationPS));
+  dwh->depconf.purpose.purpose = htonl (TALER_SIGNATURE_EXCHANGE_CONFIRM_WIRE);
+  dwh->depconf.h_wire = *h_wire;
+  dwh->depconf.h_contract = *h_contract;
+  dwh->depconf.coin_pub = *coin_pub;
+  dwh->depconf.transaction_id = GNUNET_htonll (transaction_id);
+
+  eh = curl_easy_init ();
+  GNUNET_assert (NULL != (dwh->json_enc =
+                          json_dumps (deposit_wtid_obj,
+                                      JSON_COMPACT)));
+  json_decref (deposit_wtid_obj);
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_URL,
+                                   dwh->url));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_POSTFIELDS,
+                                   dwh->json_enc));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_POSTFIELDSIZE,
+                                   strlen (dwh->json_enc)));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEFUNCTION,
+                                   &MAC_download_cb));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEDATA,
+                                   &dwh->db));
+  ctx = MAH_handle_to_context (exchange);
+  dwh->job = MAC_job_add (ctx,
+                          eh,
+                          GNUNET_YES,
+                          &handle_deposit_wtid_finished,
+                          dwh);
+  return dwh;
+}
+
+
+/**
+ * Cancel deposit wtid request.  This function cannot be used on a request
+ * handle if a response is already served for it.
+ *
+ * @param dwh the wire deposits request handle
+ */
+void
+TALER_EXCHANGE_deposit_wtid_cancel (struct TALER_EXCHANGE_DepositWtidHandle *dwh)
+{
+  if (NULL != dwh->job)
+  {
+    MAC_job_cancel (dwh->job);
+    dwh->job = NULL;
+  }
+  GNUNET_free_non_null (dwh->db.buf);
+  GNUNET_free (dwh->url);
+  GNUNET_free (dwh->json_enc);
+  GNUNET_free (dwh);
+}
+
+
+/* end of exchange_api_deposit_wtid.c */
diff --git a/src/exchange-lib/exchange_api_handle.c b/src/exchange-lib/exchange_api_handle.c
new file mode 100644
index 000000000..d4b3e4deb
--- /dev/null
+++ b/src/exchange-lib/exchange_api_handle.c
@@ -0,0 +1,902 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see
+  <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange-lib/exchange_api_handle.c
+ * @brief Implementation of the "handle" component of the exchange's HTTP API
+ * @author Sree Harsha Totakura <sreeharsha@totakura.in>
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <curl/curl.h>
+#include <jansson.h>
+#include <gnunet/gnunet_util_lib.h>
+#include <microhttpd.h>
+#include "taler_exchange_service.h"
+#include "taler_signatures.h"
+#include "exchange_api_context.h"
+#include "exchange_api_json.h"
+#include "exchange_api_handle.h"
+
+
+/**
+ * Log error related to CURL operations.
+ *
+ * @param type log level
+ * @param function which function failed to run
+ * @param code what was the curl error code
+ */
+#define CURL_STRERROR(type, function, code)      \
+ GNUNET_log (type, "Curl function `%s' has failed at `%s:%d' with error: %s", \
+             function, __FILE__, __LINE__, curl_easy_strerror (code));
+
+
+/**
+ * Stages of initialization for the `struct TALER_EXCHANGE_Handle`
+ */
+enum ExchangeHandleState
+{
+  /**
+   * Just allocated.
+   */
+  MHS_INIT = 0,
+
+  /**
+   * Obtained the exchange's certification data and keys.
+   */
+  MHS_CERT = 1,
+
+  /**
+   * Failed to initialize (fatal).
+   */
+  MHS_FAILED = 2
+};
+
+
+/**
+ * Data for the request to get the /keys of a exchange.
+ */
+struct KeysRequest;
+
+
+/**
+ * Handle to the exchange
+ */
+struct TALER_EXCHANGE_Handle
+{
+  /**
+   * The context of this handle
+   */
+  struct TALER_EXCHANGE_Context *ctx;
+
+  /**
+   * The URL of the exchange (i.e. "http://exchange.taler.net/")
+   */
+  char *url;
+
+  /**
+   * Function to call with the exchange's certification data,
+   * NULL if this has already been done.
+   */
+  TALER_EXCHANGE_CertificationCallback cert_cb;
+
+  /**
+   * Closure to pass to @e cert_cb.
+   */
+  void *cert_cb_cls;
+
+  /**
+   * Data for the request to get the /keys of a exchange,
+   * NULL once we are past stage #MHS_INIT.
+   */
+  struct KeysRequest *kr;
+
+  /**
+   * Key data of the exchange, only valid if
+   * @e handshake_complete is past stage #MHS_CERT.
+   */
+  struct TALER_EXCHANGE_Keys key_data;
+
+  /**
+   * Stage of the exchange's initialization routines.
+   */
+  enum ExchangeHandleState state;
+
+};
+
+
+/* ***************** Internal /keys fetching ************* */
+
+/**
+ * Data for the request to get the /keys of a exchange.
+ */
+struct KeysRequest
+{
+  /**
+   * The connection to exchange this request handle will use
+   */
+  struct TALER_EXCHANGE_Handle *exchange;
+
+  /**
+   * The url for this handle
+   */
+  char *url;
+
+  /**
+   * Entry for this request with the `struct TALER_EXCHANGE_Context`.
+   */
+  struct MAC_Job *job;
+
+  /**
+   * Data structure for the download.
+   */
+  struct MAC_DownloadBuffer db;
+
+};
+
+
+/**
+ * Release memory occupied by a keys request.
+ * Note that this does not cancel the request
+ * itself.
+ *
+ * @param kr request to free
+ */
+static void
+free_keys_request (struct KeysRequest *kr)
+{
+  GNUNET_free_non_null (kr->db.buf);
+  GNUNET_free (kr->url);
+  GNUNET_free (kr);
+}
+
+
+#define EXITIF(cond)                                              \
+  do {                                                            \
+    if (cond) { GNUNET_break (0); goto EXITIF_exit; }             \
+  } while (0)
+
+
+/**
+ * Parse a exchange's signing key encoded in JSON.
+ *
+ * @param[out] sign_key where to return the result
+ * @param[in] sign_key_obj json to parse
+ * @param master_key master key to use to verify signature
+ * @return #GNUNET_OK if all is fine, #GNUNET_SYSERR if the signature is
+ *        invalid or the json malformed.
+ */
+static int
+parse_json_signkey (struct TALER_EXCHANGE_SigningPublicKey *sign_key,
+                    json_t *sign_key_obj,
+                    const struct TALER_MasterPublicKeyP *master_key)
+{
+  struct TALER_ExchangeSigningKeyValidityPS sign_key_issue;
+  struct GNUNET_CRYPTO_EddsaSignature sig;
+  struct GNUNET_TIME_Absolute valid_from;
+  struct GNUNET_TIME_Absolute valid_until;
+  struct GNUNET_TIME_Absolute valid_legal;
+  struct MAJ_Specification spec[] = {
+    MAJ_spec_fixed_auto ("master_sig",
+                         &sig),
+    MAJ_spec_fixed_auto ("key",
+                         &sign_key_issue.signkey_pub),
+    MAJ_spec_absolute_time ("stamp_start",
+                            &valid_from),
+    MAJ_spec_absolute_time ("stamp_expire",
+                            &valid_until),
+    MAJ_spec_absolute_time ("stamp_end",
+                            &valid_legal),
+    MAJ_spec_end
+  };
+
+  if (GNUNET_OK !=
+      MAJ_parse_json (sign_key_obj,
+                      spec))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+
+  sign_key_issue.purpose.purpose = htonl (TALER_SIGNATURE_MASTER_SIGNING_KEY_VALIDITY);
+  sign_key_issue.purpose.size =
+    htonl (sizeof (struct TALER_ExchangeSigningKeyValidityPS)
+           - offsetof (struct TALER_ExchangeSigningKeyValidityPS,
+                       purpose));
+  sign_key_issue.master_public_key = *master_key;
+  sign_key_issue.start = GNUNET_TIME_absolute_hton (valid_from);
+  sign_key_issue.expire = GNUNET_TIME_absolute_hton (valid_until);
+  sign_key_issue.end = GNUNET_TIME_absolute_hton (valid_legal);
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MASTER_SIGNING_KEY_VALIDITY,
+                                  &sign_key_issue.purpose,
+                                  &sig,
+                                  &master_key->eddsa_pub))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  sign_key->valid_from = valid_from;
+  sign_key->valid_until = valid_until;
+  sign_key->key = sign_key_issue.signkey_pub;
+  return GNUNET_OK;
+}
+
+
+/**
+ * Parse a exchange's denomination key encoded in JSON.
+ *
+ * @param[out] denom_key where to return the result
+ * @param[in] denom_key_obj json to parse
+ * @param master_key master key to use to verify signature
+ * @param hash_context where to accumulate data for signature verification
+ * @return #GNUNET_OK if all is fine, #GNUNET_SYSERR if the signature is
+ *        invalid or the json malformed.
+ */
+static int
+parse_json_denomkey (struct TALER_EXCHANGE_DenomPublicKey *denom_key,
+                     json_t *denom_key_obj,
+                     struct TALER_MasterPublicKeyP *master_key,
+                     struct GNUNET_HashContext *hash_context)
+{
+  struct GNUNET_TIME_Absolute valid_from;
+  struct GNUNET_TIME_Absolute withdraw_valid_until;
+  struct GNUNET_TIME_Absolute deposit_valid_until;
+  struct GNUNET_TIME_Absolute expire_legal;
+  struct TALER_Amount value;
+  struct TALER_Amount fee_withdraw;
+  struct TALER_Amount fee_deposit;
+  struct TALER_Amount fee_refresh;
+  struct TALER_DenominationKeyValidityPS denom_key_issue;
+  struct GNUNET_CRYPTO_rsa_PublicKey *pk;
+  struct GNUNET_CRYPTO_EddsaSignature sig;
+
+  struct MAJ_Specification spec[] = {
+    MAJ_spec_fixed_auto ("master_sig",
+                         &sig),
+    MAJ_spec_absolute_time ("stamp_expire_deposit",
+                            &deposit_valid_until),
+    MAJ_spec_absolute_time ("stamp_expire_withdraw",
+                            &withdraw_valid_until),
+    MAJ_spec_absolute_time ("stamp_start",
+                            &valid_from),
+    MAJ_spec_absolute_time ("stamp_expire_legal",
+                            &expire_legal),
+    MAJ_spec_amount ("value",
+                     &value),
+    MAJ_spec_amount ("fee_withdraw",
+                     &fee_withdraw),
+    MAJ_spec_amount ("fee_deposit",
+                     &fee_deposit),
+    MAJ_spec_amount ("fee_refresh",
+                     &fee_refresh),
+    MAJ_spec_rsa_public_key ("denom_pub",
+                             &pk),
+    MAJ_spec_end
+  };
+
+  if (GNUNET_OK !=
+      MAJ_parse_json (denom_key_obj,
+                      spec))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+
+  memset (&denom_key_issue, 0, sizeof (denom_key_issue));
+  GNUNET_CRYPTO_rsa_public_key_hash (pk,
+                                     &denom_key_issue.denom_hash);
+  denom_key_issue.purpose.purpose
+    = htonl (TALER_SIGNATURE_MASTER_DENOMINATION_KEY_VALIDITY);
+  denom_key_issue.purpose.size
+    = htonl (sizeof (struct TALER_DenominationKeyValidityPS));
+  denom_key_issue.master = *master_key;
+  denom_key_issue.start = GNUNET_TIME_absolute_hton (valid_from);
+  denom_key_issue.expire_withdraw = GNUNET_TIME_absolute_hton (withdraw_valid_until);
+  denom_key_issue.expire_spend = GNUNET_TIME_absolute_hton (deposit_valid_until);
+  denom_key_issue.expire_legal = GNUNET_TIME_absolute_hton (expire_legal);
+  TALER_amount_hton (&denom_key_issue.value,
+                     &value);
+  TALER_amount_hton (&denom_key_issue.fee_withdraw,
+                     &fee_withdraw);
+  TALER_amount_hton (&denom_key_issue.fee_deposit,
+                     &fee_deposit);
+  TALER_amount_hton (&denom_key_issue.fee_refresh,
+                     &fee_refresh);
+  EXITIF (GNUNET_SYSERR ==
+          GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MASTER_DENOMINATION_KEY_VALIDITY,
+                                      &denom_key_issue.purpose,
+                                      &sig,
+                                      &master_key->eddsa_pub));
+  GNUNET_CRYPTO_hash_context_read (hash_context,
+                                   &denom_key_issue.denom_hash,
+                                   sizeof (struct GNUNET_HashCode));
+  denom_key->key.rsa_public_key = pk;
+  denom_key->h_key = denom_key_issue.denom_hash;
+  denom_key->valid_from = valid_from;
+  denom_key->withdraw_valid_until = withdraw_valid_until;
+  denom_key->deposit_valid_until = deposit_valid_until;
+  denom_key->expire_legal = expire_legal;
+  denom_key->value = value;
+  denom_key->fee_withdraw = fee_withdraw;
+  denom_key->fee_deposit = fee_deposit;
+  denom_key->fee_refresh = fee_refresh;
+  return GNUNET_OK;
+
+ EXITIF_exit:
+  MAJ_parse_free (spec);
+  return GNUNET_SYSERR;
+}
+
+
+/**
+ * Parse a exchange's auditor information encoded in JSON.
+ *
+ * @param[out] auditor where to return the result
+ * @param[in] auditor_obj json to parse
+ * @param key_data information about denomination keys
+ * @return #GNUNET_OK if all is fine, #GNUNET_SYSERR if the signature is
+ *        invalid or the json malformed.
+ */
+static int
+parse_json_auditor (struct TALER_EXCHANGE_AuditorInformation *auditor,
+                    json_t *auditor_obj,
+                    const struct TALER_EXCHANGE_Keys *key_data)
+{
+  json_t *keys;
+  json_t *key;
+  unsigned int len;
+  unsigned int off;
+  unsigned int i;
+  struct TALER_ExchangeKeyValidityPS kv;
+  struct MAJ_Specification spec[] = {
+    MAJ_spec_fixed_auto ("auditor_pub",
+                         &auditor->auditor_pub),
+    MAJ_spec_json ("denomination_keys",
+                   &keys),
+    MAJ_spec_end
+  };
+
+  auditor->auditor_url = NULL; /* #3987 */
+  if (GNUNET_OK !=
+      MAJ_parse_json (auditor_obj,
+                      spec))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  kv.purpose.purpose = htonl (TALER_SIGNATURE_AUDITOR_EXCHANGE_KEYS);
+  kv.purpose.size = htonl (sizeof (struct TALER_ExchangeKeyValidityPS));
+  kv.master = key_data->master_pub;
+  len = json_array_size (keys);
+  auditor->denom_keys = GNUNET_new_array (len,
+                                          const struct TALER_EXCHANGE_DenomPublicKey *);
+  i = 0;
+  off = 0;
+  json_array_foreach (keys, i, key) {
+    struct TALER_AuditorSignatureP auditor_sig;
+    struct GNUNET_HashCode denom_h;
+    const struct TALER_EXCHANGE_DenomPublicKey *dk;
+    unsigned int j;
+    struct MAJ_Specification spec[] = {
+      MAJ_spec_fixed_auto ("denom_pub_h",
+                           &denom_h),
+      MAJ_spec_fixed_auto ("auditor_sig",
+                           &auditor_sig),
+      MAJ_spec_end
+    };
+
+    if (GNUNET_OK !=
+        MAJ_parse_json (key,
+                        spec))
+      {
+      GNUNET_break_op (0);
+      continue;
+    }
+    dk = NULL;
+    for (j=0;j<key_data->num_denom_keys;j++)
+    {
+      if (0 == memcmp (&denom_h,
+                       &key_data->denom_keys[j].h_key,
+                       sizeof (struct GNUNET_HashCode)))
+      {
+        dk = &key_data->denom_keys[j];
+        break;
+      }
+    }
+    if (NULL == dk)
+    {
+      GNUNET_break_op (0);
+      continue;
+    }
+    kv.start = GNUNET_TIME_absolute_hton (dk->valid_from);
+    kv.expire_withdraw = GNUNET_TIME_absolute_hton (dk->withdraw_valid_until);
+    kv.expire_spend = GNUNET_TIME_absolute_hton (dk->deposit_valid_until);
+    kv.expire_legal = GNUNET_TIME_absolute_hton (dk->expire_legal);
+    TALER_amount_hton (&kv.value,
+                       &dk->value);
+    TALER_amount_hton (&kv.fee_withdraw,
+                       &dk->fee_withdraw);
+    TALER_amount_hton (&kv.fee_deposit,
+                       &dk->fee_deposit);
+    TALER_amount_hton (&kv.fee_refresh,
+                       &dk->fee_refresh);
+    kv.denom_hash = dk->h_key;
+    if (GNUNET_OK !=
+        GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_AUDITOR_EXCHANGE_KEYS,
+                                    &kv.purpose,
+                                    &auditor_sig.eddsa_sig,
+                                    &auditor->auditor_pub.eddsa_pub))
+    {
+      GNUNET_break_op (0);
+      continue;
+    }
+    auditor->denom_keys[off] = dk;
+    off++;
+  }
+  auditor->num_denom_keys = off;
+  return GNUNET_OK;
+}
+
+
+/**
+ * Decode the JSON in @a resp_obj from the /keys response and store the data
+ * in the @a key_data.
+ *
+ * @param[in] resp_obj JSON object to parse
+ * @param[out] key_data where to store the results we decoded
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error (malformed JSON)
+ */
+static int
+decode_keys_json (json_t *resp_obj,
+                  struct TALER_EXCHANGE_Keys *key_data)
+{
+  struct GNUNET_TIME_Absolute list_issue_date;
+  struct TALER_ExchangeSignatureP sig;
+  struct TALER_ExchangeKeySetPS ks;
+  struct GNUNET_HashContext *hash_context;
+  struct TALER_ExchangePublicKeyP pub;
+
+  if (JSON_OBJECT != json_typeof (resp_obj))
+    return GNUNET_SYSERR;
+
+  hash_context = GNUNET_CRYPTO_hash_context_start ();
+  /* parse the master public key and issue date of the response */
+  {
+    struct MAJ_Specification spec[] = {
+      MAJ_spec_fixed_auto ("master_public_key",
+                           &key_data->master_pub),
+      MAJ_spec_fixed_auto ("eddsa_sig",
+                           &sig),
+      MAJ_spec_fixed_auto ("eddsa_pub",
+                           &pub),
+      MAJ_spec_absolute_time ("list_issue_date",
+                              &list_issue_date),
+      MAJ_spec_end
+    };
+
+    EXITIF (GNUNET_OK !=
+            MAJ_parse_json (resp_obj,
+                            spec));
+  }
+
+  /* parse the signing keys */
+  {
+    json_t *sign_keys_array;
+    json_t *sign_key_obj;
+    unsigned int index;
+
+    EXITIF (NULL == (sign_keys_array =
+                     json_object_get (resp_obj,
+                                      "signkeys")));
+    EXITIF (JSON_ARRAY != json_typeof (sign_keys_array));
+    EXITIF (0 == (key_data->num_sign_keys =
+                  json_array_size (sign_keys_array)));
+    key_data->sign_keys
+      = GNUNET_new_array (key_data->num_sign_keys,
+                          struct TALER_EXCHANGE_SigningPublicKey);
+    index = 0;
+    json_array_foreach (sign_keys_array, index, sign_key_obj) {
+      EXITIF (GNUNET_SYSERR ==
+              parse_json_signkey (&key_data->sign_keys[index],
+                                  sign_key_obj,
+                                  &key_data->master_pub));
+    }
+  }
+
+  /* parse the denomination keys */
+  {
+    json_t *denom_keys_array;
+    json_t *denom_key_obj;
+    unsigned int index;
+
+    EXITIF (NULL == (denom_keys_array =
+                     json_object_get (resp_obj, "denoms")));
+    EXITIF (JSON_ARRAY != json_typeof (denom_keys_array));
+    EXITIF (0 == (key_data->num_denom_keys = json_array_size (denom_keys_array)));
+    key_data->denom_keys = GNUNET_new_array (key_data->num_denom_keys,
+                                             struct TALER_EXCHANGE_DenomPublicKey);
+    index = 0;
+    json_array_foreach (denom_keys_array, index, denom_key_obj) {
+      EXITIF (GNUNET_SYSERR ==
+              parse_json_denomkey (&key_data->denom_keys[index],
+                                   denom_key_obj,
+                                   &key_data->master_pub,
+                                   hash_context));
+    }
+  }
+
+  /* parse the auditor information */
+  {
+    json_t *auditors_array;
+    json_t *auditor_info;
+    unsigned int len;
+    unsigned int index;
+
+    EXITIF (NULL == (auditors_array =
+                     json_object_get (resp_obj, "auditors")));
+    EXITIF (JSON_ARRAY != json_typeof (auditors_array));
+    len = json_array_size (auditors_array);
+    if (0 != len)
+    {
+      key_data->auditors = GNUNET_new_array (len,
+                                             struct TALER_EXCHANGE_AuditorInformation);
+      index = 0;
+      json_array_foreach (auditors_array, index, auditor_info) {
+        EXITIF (GNUNET_SYSERR ==
+                parse_json_auditor (&key_data->auditors[index],
+                                    auditor_info,
+                                    key_data));
+      }
+    }
+  }
+
+  /* Validate signature... */
+  ks.purpose.size = htonl (sizeof (ks));
+  ks.purpose.purpose = htonl (TALER_SIGNATURE_EXCHANGE_KEY_SET);
+  ks.list_issue_date = GNUNET_TIME_absolute_hton (list_issue_date);
+  GNUNET_CRYPTO_hash_context_finish (hash_context,
+                                     &ks.hc);
+  hash_context = NULL;
+  EXITIF (GNUNET_OK !=
+          TALER_EXCHANGE_test_signing_key (key_data,
+                                       &pub));
+  EXITIF (GNUNET_OK !=
+          GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_EXCHANGE_KEY_SET,
+                                      &ks.purpose,
+                                      &sig.eddsa_signature,
+                                      &pub.eddsa_pub));
+  return GNUNET_OK;
+ EXITIF_exit:
+
+  if (NULL != hash_context)
+    GNUNET_CRYPTO_hash_context_abort (hash_context);
+  return GNUNET_SYSERR;
+}
+
+
+/**
+ * Callback used when downloading the reply to a /keys request
+ * is complete.
+ *
+ * @param cls the `struct KeysRequest`
+ * @param eh easy handle of the original request
+ */
+static void
+keys_completed_cb (void *cls,
+                   CURL *eh)
+{
+  struct KeysRequest *kr = cls;
+  struct TALER_EXCHANGE_Handle *exchange = kr->exchange;
+  json_t *resp_obj;
+  long response_code;
+  TALER_EXCHANGE_CertificationCallback cb;
+
+  resp_obj = MAC_download_get_result (&kr->db,
+                                      eh,
+                                      &response_code);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Received keys from URL `%s' with status %ld.\n",
+              kr->url,
+              response_code);
+  switch (response_code) {
+  case 0:
+    break;
+  case MHD_HTTP_OK:
+    if ( (NULL == resp_obj) ||
+         (GNUNET_OK !=
+          decode_keys_json (resp_obj,
+                            &kr->exchange->key_data)) )
+      response_code = 0;
+    break;
+  default:
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u\n",
+                response_code);
+    break;
+  }
+  if (NULL != resp_obj)
+    json_decref (resp_obj);
+
+  if (MHD_HTTP_OK != response_code)
+  {
+    exchange->kr = NULL;
+    free_keys_request (kr);
+    exchange->state = MHS_FAILED;
+    /* notify application that we failed */
+    if (NULL != (cb = exchange->cert_cb))
+    {
+      exchange->cert_cb = NULL;
+      cb (exchange->cert_cb_cls,
+	  NULL);
+    }
+    return;
+  }
+  exchange->kr = NULL;
+  free_keys_request (kr);
+  exchange->state = MHS_CERT;
+  /* notify application about the key information */
+  if (NULL != (cb = exchange->cert_cb))
+  {
+    exchange->cert_cb = NULL;
+    cb (exchange->cert_cb_cls,
+	&exchange->key_data);
+  }
+}
+
+
+/* ********************* library internal API ********* */
+
+
+/**
+ * Get the context of a exchange.
+ *
+ * @param h the exchange handle to query
+ * @return ctx context to execute jobs in
+ */
+struct TALER_EXCHANGE_Context *
+MAH_handle_to_context (struct TALER_EXCHANGE_Handle *h)
+{
+  return h->ctx;
+}
+
+
+/**
+ * Check if the handle is ready to process requests.
+ *
+ * @param h the exchange handle to query
+ * @return #GNUNET_YES if we are ready, #GNUNET_NO if not
+ */
+int
+MAH_handle_is_ready (struct TALER_EXCHANGE_Handle *h)
+{
+  return (MHS_CERT == h->state) ? GNUNET_YES : GNUNET_NO;
+}
+
+
+/**
+ * Obtain the URL to use for an API request.
+ *
+ * @param h the exchange handle to query
+ * @param path Taler API path (i.e. "/reserve/withdraw")
+ * @return the full URI to use with cURL
+ */
+char *
+MAH_path_to_url (struct TALER_EXCHANGE_Handle *h,
+                 const char *path)
+{
+  char *url;
+
+  if ( ('/' == path[0]) &&
+       (0 < strlen (h->url)) &&
+       ('/' == h->url[strlen (h->url) - 1]) )
+    path++; /* avoid generating URL with "//" from concat */
+  GNUNET_asprintf (&url,
+                   "%s%s",
+                   h->url,
+                   path);
+  return url;
+}
+
+
+/* ********************* public API ******************* */
+
+/**
+ * Initialise a connection to the exchange. Will connect to the
+ * exchange and obtain information about the exchange's master public
+ * key and the exchange's auditor.  The respective information will
+ * be passed to the @a cert_cb once available, and all future
+ * interactions with the exchange will be checked to be signed
+ * (where appropriate) by the respective master key.
+ *
+ * @param ctx the context
+ * @param url HTTP base URL for the exchange
+ * @param cert_cb function to call with the exchange's certification information
+ * @param cert_cb_cls closure for @a cert_cb
+ * @param ... list of additional arguments, terminated by #TALER_EXCHANGE_OPTION_END.
+ * @return the exchange handle; NULL upon error
+ */
+struct TALER_EXCHANGE_Handle *
+TALER_EXCHANGE_connect (struct TALER_EXCHANGE_Context *ctx,
+                    const char *url,
+                    TALER_EXCHANGE_CertificationCallback cert_cb,
+                    void *cert_cb_cls,
+                    ...)
+{
+  struct TALER_EXCHANGE_Handle *exchange;
+  struct KeysRequest *kr;
+  CURL *c;
+
+  exchange = GNUNET_new (struct TALER_EXCHANGE_Handle);
+  exchange->ctx = ctx;
+  exchange->url = GNUNET_strdup (url);
+  exchange->cert_cb = cert_cb;
+  exchange->cert_cb_cls = cert_cb_cls;
+  kr = GNUNET_new (struct KeysRequest);
+  kr->exchange = exchange;
+  kr->url = MAH_path_to_url (exchange, "/keys");
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Requesting keys with URL `%s'.\n",
+              kr->url);
+  c = curl_easy_init ();
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (c,
+                                   CURLOPT_VERBOSE,
+                                   0));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (c,
+                                   CURLOPT_STDERR,
+                                   stdout));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (c,
+                                   CURLOPT_URL,
+                                   kr->url));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (c,
+                                   CURLOPT_WRITEFUNCTION,
+                                   &MAC_download_cb));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (c,
+                                   CURLOPT_WRITEDATA,
+                                   &kr->db));
+  kr->job = MAC_job_add (exchange->ctx,
+                         c,
+                         GNUNET_NO,
+                         &keys_completed_cb,
+                         kr);
+  exchange->kr = kr;
+  return exchange;
+}
+
+
+/**
+ * Disconnect from the exchange
+ *
+ * @param exchange the exchange handle
+ */
+void
+TALER_EXCHANGE_disconnect (struct TALER_EXCHANGE_Handle *exchange)
+{
+  unsigned int i;
+
+  if (NULL != exchange->kr)
+  {
+    MAC_job_cancel (exchange->kr->job);
+    free_keys_request (exchange->kr);
+    exchange->kr = NULL;
+  }
+  GNUNET_array_grow (exchange->key_data.sign_keys,
+                     exchange->key_data.num_sign_keys,
+                     0);
+  for (i=0;i<exchange->key_data.num_denom_keys;i++)
+    GNUNET_CRYPTO_rsa_public_key_free (exchange->key_data.denom_keys[i].key.rsa_public_key);
+  GNUNET_array_grow (exchange->key_data.denom_keys,
+                     exchange->key_data.num_denom_keys,
+                     0);
+  GNUNET_array_grow (exchange->key_data.auditors,
+                     exchange->key_data.num_auditors,
+                     0);
+  GNUNET_free (exchange->url);
+  GNUNET_free (exchange);
+}
+
+
+/**
+ * Test if the given @a pub is a the current signing key from the exchange
+ * according to @a keys.
+ *
+ * @param keys the exchange's key set
+ * @param pub claimed current online signing key for the exchange
+ * @return #GNUNET_OK if @a pub is (according to /keys) a current signing key
+ */
+int
+TALER_EXCHANGE_test_signing_key (const struct TALER_EXCHANGE_Keys *keys,
+                             const struct TALER_ExchangePublicKeyP *pub)
+{
+  struct GNUNET_TIME_Absolute now;
+  unsigned int i;
+
+  /* we will check using a tolerance of 1h for the time */
+  now = GNUNET_TIME_absolute_get ();
+  for (i=0;i<keys->num_sign_keys;i++)
+    if ( (keys->sign_keys[i].valid_from.abs_value_us <= now.abs_value_us + 60 * 60 * 1000LL * 1000LL) &&
+         (keys->sign_keys[i].valid_until.abs_value_us > now.abs_value_us - 60 * 60 * 1000LL * 1000LL) &&
+         (0 == memcmp (pub,
+                       &keys->sign_keys[i].key,
+                       sizeof (struct TALER_ExchangePublicKeyP))) )
+      return GNUNET_OK;
+  return GNUNET_SYSERR;
+}
+
+
+/**
+ * Obtain the denomination key details from the exchange.
+ *
+ * @param keys the exchange's key set
+ * @param pk public key of the denomination to lookup
+ * @return details about the given denomination key, NULL if the key is
+ * not found
+ */
+const struct TALER_EXCHANGE_DenomPublicKey *
+TALER_EXCHANGE_get_denomination_key (const struct TALER_EXCHANGE_Keys *keys,
+                                 const struct TALER_DenominationPublicKey *pk)
+{
+  unsigned int i;
+
+  for (i=0;i<keys->num_denom_keys;i++)
+    if (0 == GNUNET_CRYPTO_rsa_public_key_cmp (pk->rsa_public_key,
+                                               keys->denom_keys[i].key.rsa_public_key))
+      return &keys->denom_keys[i];
+  return NULL;
+}
+
+
+/**
+ * Obtain the denomination key details from the exchange.
+ *
+ * @param keys the exchange's key set
+ * @param hc hash of the public key of the denomination to lookup
+ * @return details about the given denomination key
+ */
+const struct TALER_EXCHANGE_DenomPublicKey *
+TALER_EXCHANGE_get_denomination_key_by_hash (const struct TALER_EXCHANGE_Keys *keys,
+                                         const struct GNUNET_HashCode *hc)
+{
+  unsigned int i;
+
+  for (i=0;i<keys->num_denom_keys;i++)
+    if (0 == memcmp (hc,
+                     &keys->denom_keys[i].h_key,
+                     sizeof (struct GNUNET_HashCode)))
+      return &keys->denom_keys[i];
+  return NULL;
+}
+
+
+/**
+ * Obtain the keys from the exchange.
+ *
+ * @param exchange the exchange handle
+ * @return the exchange's key set
+ */
+const struct TALER_EXCHANGE_Keys *
+TALER_EXCHANGE_get_keys (const struct TALER_EXCHANGE_Handle *exchange)
+{
+  return &exchange->key_data;
+}
+
+
+/* end of exchange_api_handle.c */
diff --git a/src/exchange-lib/exchange_api_handle.h b/src/exchange-lib/exchange_api_handle.h
new file mode 100644
index 000000000..48423a7b8
--- /dev/null
+++ b/src/exchange-lib/exchange_api_handle.h
@@ -0,0 +1,59 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see
+  <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange-lib/exchange_api_handle.h
+ * @brief Internal interface to the handle part of the exchange's HTTP API
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <curl/curl.h>
+#include "taler_exchange_service.h"
+
+
+/**
+ * Get the context of a exchange.
+ *
+ * @param h the exchange handle to query
+ * @return ctx context to execute jobs in
+ */
+struct TALER_EXCHANGE_Context *
+MAH_handle_to_context (struct TALER_EXCHANGE_Handle *h);
+
+
+/**
+ * Check if the handle is ready to process requests.
+ *
+ * @param h the exchange handle to query
+ * @return #GNUNET_YES if we are ready, #GNUNET_NO if not
+ */
+int
+MAH_handle_is_ready (struct TALER_EXCHANGE_Handle *h);
+
+
+/**
+ * Obtain the URL to use for an API request.
+ *
+ * @param h the exchange handle to query
+ * @param path Taler API path (i.e. "/reserve/withdraw")
+ * @return the full URI to use with cURL
+ */
+char *
+MAH_path_to_url (struct TALER_EXCHANGE_Handle *h,
+                 const char *path);
+
+
+/* end of exchange_api_handle.h */
diff --git a/src/exchange-lib/exchange_api_json.c b/src/exchange-lib/exchange_api_json.c
new file mode 100644
index 000000000..d91feba0e
--- /dev/null
+++ b/src/exchange-lib/exchange_api_json.c
@@ -0,0 +1,525 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange-lib/exchange_api_json.c
+ * @brief functions to parse incoming requests (JSON snippets)
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "exchange_api_json.h"
+
+/**
+ * Navigate and parse data in a JSON tree.
+ *
+ * @param root the JSON node to start the navigation at.
+ * @param spec parse specification array
+ * @return offset in @a spec where parsing failed, -1 on success (!)
+ */
+static int
+parse_json (json_t *root,
+            struct MAJ_Specification *spec)
+{
+  int i;
+  json_t *pos; /* what's our current position? */
+
+  pos = root;
+  for (i=0;MAJ_CMD_END != spec[i].cmd;i++)
+  {
+    pos = json_object_get (root,
+                           spec[i].field);
+    if (NULL == pos)
+    {
+      GNUNET_break_op (0);
+      return i;
+    }
+    switch (spec[i].cmd)
+    {
+    case MAJ_CMD_END:
+      GNUNET_assert (0);
+      return i;
+    case MAJ_CMD_AMOUNT:
+      if (GNUNET_OK !=
+          TALER_json_to_amount (pos,
+                                spec[i].details.amount))
+      {
+        GNUNET_break_op (0);
+        return i;
+      }
+      break;
+    case MAJ_CMD_TIME_ABSOLUTE:
+      if (GNUNET_OK !=
+          TALER_json_to_abs (pos,
+                             spec[i].details.abs_time))
+      {
+        GNUNET_break_op (0);
+        return i;
+      }
+      break;
+
+    case MAJ_CMD_STRING:
+      {
+        const char *str;
+
+        str = json_string_value (pos);
+        if (NULL == str)
+        {
+          GNUNET_break_op (0);
+          return i;
+        }
+        *spec[i].details.strptr = str;
+      }
+      break;
+
+    case MAJ_CMD_BINARY_FIXED:
+      {
+        const char *str;
+        int res;
+
+        str = json_string_value (pos);
+        if (NULL == str)
+        {
+          GNUNET_break_op (0);
+          return i;
+        }
+        res = GNUNET_STRINGS_string_to_data (str, strlen (str),
+                                             spec[i].details.fixed_data.dest,
+                                             spec[i].details.fixed_data.dest_size);
+        if (GNUNET_OK != res)
+        {
+          GNUNET_break_op (0);
+          return i;
+        }
+      }
+      break;
+
+    case MAJ_CMD_BINARY_VARIABLE:
+      {
+        const char *str;
+        size_t size;
+        void *data;
+        int res;
+
+        str = json_string_value (pos);
+        if (NULL == str)
+        {
+          GNUNET_break_op (0);
+          return i;
+        }
+        size = (strlen (str) * 5) / 8;
+        if (size >= 1024)
+        {
+          GNUNET_break_op (0);
+          return i;
+        }
+        data = GNUNET_malloc (size);
+        res = GNUNET_STRINGS_string_to_data (str,
+                                             strlen (str),
+                                             data,
+                                             size);
+        if (GNUNET_OK != res)
+        {
+          GNUNET_break_op (0);
+          GNUNET_free (data);
+          return i;
+        }
+        *spec[i].details.variable_data.dest_p = data;
+        *spec[i].details.variable_data.dest_size_p = size;
+      }
+      break;
+
+    case MAJ_CMD_RSA_PUBLIC_KEY:
+      {
+        size_t size;
+        const char *str;
+        int res;
+        void *buf;
+
+        str = json_string_value (pos);
+        if (NULL == str)
+        {
+          GNUNET_break_op (0);
+          return i;
+        }
+        size = (strlen (str) * 5) / 8;
+        buf = GNUNET_malloc (size);
+        res = GNUNET_STRINGS_string_to_data (str,
+                                             strlen (str),
+                                             buf,
+                                             size);
+        if (GNUNET_OK != res)
+        {
+          GNUNET_free (buf);
+          GNUNET_break_op (0);
+          return i;
+        }
+        *spec[i].details.rsa_public_key
+          = GNUNET_CRYPTO_rsa_public_key_decode (buf,
+                                                 size);
+        GNUNET_free (buf);
+        if (NULL == spec[i].details.rsa_public_key)
+        {
+          GNUNET_break_op (0);
+          return i;
+        }
+      }
+      break;
+
+    case MAJ_CMD_RSA_SIGNATURE:
+      {
+        size_t size;
+        const char *str;
+        int res;
+        void *buf;
+
+        str = json_string_value (pos);
+        if (NULL == str)
+        {
+          GNUNET_break_op (0);
+          return i;
+        }
+        size = (strlen (str) * 5) / 8;
+        buf = GNUNET_malloc (size);
+        res = GNUNET_STRINGS_string_to_data (str,
+                                             strlen (str),
+                                             buf,
+                                             size);
+        if (GNUNET_OK != res)
+        {
+          GNUNET_free (buf);
+          GNUNET_break_op (0);
+          return i;
+        }
+        *spec[i].details.rsa_signature
+          = GNUNET_CRYPTO_rsa_signature_decode (buf,
+                                                size);
+        GNUNET_free (buf);
+        if (NULL == spec[i].details.rsa_signature)
+          return i;
+      }
+      break;
+
+    case MAJ_CMD_UINT16:
+      {
+        json_int_t val;
+
+        if (! json_is_integer (pos))
+        {
+          GNUNET_break_op (0);
+          return i;
+        }
+        val = json_integer_value (pos);
+        if ( (0 > val) || (val > UINT16_MAX) )
+        {
+          GNUNET_break_op (0);
+          return i;
+        }
+        *spec[i].details.u16 = (uint16_t) val;
+      }
+      break;
+
+    case MAJ_CMD_UINT64:
+      {
+        json_int_t val;
+
+        if (! json_is_integer (pos))
+        {
+          GNUNET_break_op (0);
+          return i;
+        }
+        val = json_integer_value (pos);
+        *spec[i].details.u64 = (uint64_t) val;
+      }
+      break;
+
+    case MAJ_CMD_JSON_OBJECT:
+      {
+        if (! (json_is_object (pos) || json_is_array (pos)) )
+        {
+          GNUNET_break_op (0);
+          return i;
+        }
+        json_incref (pos);
+        *spec[i].details.obj = pos;
+      }
+      break;
+
+    default:
+      GNUNET_break (0);
+      return i;
+    }
+  }
+  return -1; /* all OK! */
+}
+
+
+/**
+ * Free all elements allocated during a
+ * #MAJ_parse_json() operation.
+ *
+ * @param spec specification of the parse operation
+ * @param end number of elements in @a spec to process
+ */
+static void
+parse_free (struct MAJ_Specification *spec,
+            int end)
+{
+  int i;
+
+  for (i=0;i<end;i++)
+  {
+    switch (spec[i].cmd)
+    {
+    case MAJ_CMD_END:
+      GNUNET_assert (0);
+      return;
+    case MAJ_CMD_AMOUNT:
+      break;
+    case MAJ_CMD_TIME_ABSOLUTE:
+      break;
+    case MAJ_CMD_BINARY_FIXED:
+      break;
+    case MAJ_CMD_STRING:
+      break;
+    case MAJ_CMD_BINARY_VARIABLE:
+      GNUNET_free (*spec[i].details.variable_data.dest_p);
+      *spec[i].details.variable_data.dest_p = NULL;
+      *spec[i].details.variable_data.dest_size_p = 0;
+      break;
+    case MAJ_CMD_RSA_PUBLIC_KEY:
+      GNUNET_CRYPTO_rsa_public_key_free (*spec[i].details.rsa_public_key);
+      *spec[i].details.rsa_public_key = NULL;
+      break;
+    case MAJ_CMD_RSA_SIGNATURE:
+      GNUNET_CRYPTO_rsa_signature_free (*spec[i].details.rsa_signature);
+      *spec[i].details.rsa_signature = NULL;
+      break;
+    case MAJ_CMD_JSON_OBJECT:
+      json_decref (*spec[i].details.obj);
+      *spec[i].details.obj = NULL;
+      break;
+    default:
+      GNUNET_break (0);
+      break;
+    }
+  }
+}
+
+
+/**
+ * Navigate and parse data in a JSON tree.
+ *
+ * @param root the JSON node to start the navigation at.
+ * @param spec parse specification array
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
+ */
+int
+MAJ_parse_json (const json_t *root,
+                struct MAJ_Specification *spec)
+{
+  int ret;
+
+  ret = parse_json ((json_t *) root,
+                    spec);
+  if (-1 == ret)
+    return GNUNET_OK;
+  GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+              "JSON field `%s` (%d) had unexpected value\n",
+              spec[ret].field,
+              ret);
+  parse_free (spec, ret);
+  return GNUNET_SYSERR;
+}
+
+
+/**
+ * Free all elements allocated during a
+ * #MAJ_parse_json() operation.
+ *
+ * @param spec specification of the parse operation
+ */
+void
+MAJ_parse_free (struct MAJ_Specification *spec)
+{
+  int i;
+
+  for (i=0;MAJ_CMD_END != spec[i].cmd;i++) ;
+  parse_free (spec, i);
+}
+
+
+/**
+ * The expected field stores a string.
+ *
+ * @param name name of the JSON field
+ * @param strptr where to store a pointer to the field
+ */
+struct MAJ_Specification
+MAJ_spec_string (const char *name,
+                 const char **strptr)
+{
+  struct MAJ_Specification ret =
+    {
+      .cmd = MAJ_CMD_STRING,
+      .field = name,
+      .details.strptr = strptr
+    };
+  return ret;
+}
+
+
+/**
+ * Specification for parsing an absolute time value.
+ *
+ * @param name name of the JSON field
+ * @param at where to store the absolute time found under @a name
+ */
+struct MAJ_Specification
+MAJ_spec_absolute_time (const char *name,
+                        struct GNUNET_TIME_Absolute *at)
+{
+  struct MAJ_Specification ret =
+    {
+      .cmd = MAJ_CMD_TIME_ABSOLUTE,
+      .field = name,
+      .details.abs_time = at
+    };
+  return ret;
+}
+
+
+/**
+ * Specification for parsing an amount value.
+ *
+ * @param name name of the JSON field
+ * @param amount where to store the amount found under @a name
+ */
+struct MAJ_Specification
+MAJ_spec_amount (const char *name,
+                 struct TALER_Amount *amount)
+{
+  struct MAJ_Specification ret =
+    {
+      .cmd = MAJ_CMD_AMOUNT,
+      .field = name,
+      .details.amount = amount
+    };
+  return ret;
+}
+
+
+/**
+ * 16-bit integer.
+ *
+ * @param name name of the JSON field
+ * @param[out] u16 where to store the integer found under @a name
+ */
+struct MAJ_Specification
+MAJ_spec_uint16 (const char *name,
+                 uint16_t *u16)
+{
+  struct MAJ_Specification ret =
+    {
+      .cmd = MAJ_CMD_UINT16,
+      .field = name,
+      .details.u16 = u16
+    };
+  return ret;
+}
+
+
+/**
+ * 64-bit integer.
+ *
+ * @param name name of the JSON field
+ * @param[out] u64 where to store the integer found under @a name
+ */
+struct MAJ_Specification
+MAJ_spec_uint64 (const char *name,
+                 uint64_t *u64)
+{
+  struct MAJ_Specification ret =
+    {
+      .cmd = MAJ_CMD_UINT64,
+      .field = name,
+      .details.u64 = u64
+    };
+  return ret;
+}
+
+
+/**
+ * JSON object.
+ *
+ * @param name name of the JSON field
+ * @param[out] jsonp where to store the JSON found under @a name
+ */
+struct MAJ_Specification
+MAJ_spec_json (const char *name,
+               json_t **jsonp)
+{
+  struct MAJ_Specification ret =
+    {
+      .cmd = MAJ_CMD_JSON_OBJECT,
+      .field = name,
+      .details.obj = jsonp
+    };
+  return ret;
+}
+
+
+/**
+ * Specification for parsing an RSA public key.
+ *
+ * @param name name of the JSON field
+ * @param pk where to store the RSA key found under @a name
+ */
+struct MAJ_Specification
+MAJ_spec_rsa_public_key (const char *name,
+                         struct GNUNET_CRYPTO_rsa_PublicKey **pk)
+{
+  struct MAJ_Specification ret =
+    {
+      .cmd = MAJ_CMD_RSA_PUBLIC_KEY,
+      .field = name,
+      .details.rsa_public_key = pk
+    };
+  return ret;
+}
+
+
+/**
+ * Specification for parsing an RSA signature.
+ *
+ * @param name name of the JSON field
+ * @param sig where to store the RSA signature found under @a name
+ */
+struct MAJ_Specification
+MAJ_spec_rsa_signature (const char *name,
+                        struct GNUNET_CRYPTO_rsa_Signature **sig)
+{
+  struct MAJ_Specification ret =
+    {
+      .cmd = MAJ_CMD_RSA_SIGNATURE,
+      .field = name,
+      .details.rsa_signature = sig
+    };
+  return ret;
+}
+
+
+/* end of exchange_api_json.c */
diff --git a/src/exchange-lib/exchange_api_json.h b/src/exchange-lib/exchange_api_json.h
new file mode 100644
index 000000000..41efcea68
--- /dev/null
+++ b/src/exchange-lib/exchange_api_json.h
@@ -0,0 +1,352 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange-lib/exchange_api_json.h
+ * @brief functions to parse incoming requests (JSON snippets)
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <gnunet/gnunet_util_lib.h>
+#include "taler_util.h"
+#include <jansson.h>
+
+
+/**
+ * Enumeration with the various commands for the
+ * #MAJ_parse_json interpreter.
+ */
+enum MAJ_Command
+{
+
+  /**
+   * End of command list.
+   */
+  MAJ_CMD_END,
+
+  /**
+   * Parse amount at current position.
+   */
+  MAJ_CMD_AMOUNT,
+
+  /**
+   * Parse absolute time at current position.
+   */
+  MAJ_CMD_TIME_ABSOLUTE,
+
+  /**
+   * Parse fixed binary value at current position.
+   */
+  MAJ_CMD_BINARY_FIXED,
+
+  /**
+   * Parse variable-size binary value at current position.
+   */
+  MAJ_CMD_BINARY_VARIABLE,
+
+  /**
+   * Parse RSA public key at current position.
+   */
+  MAJ_CMD_RSA_PUBLIC_KEY,
+
+  /**
+   * Parse RSA signature at current position.
+   */
+  MAJ_CMD_RSA_SIGNATURE,
+
+  /**
+   * Parse `const char *` JSON string at current position.
+   */
+  MAJ_CMD_STRING,
+
+  /**
+   * Parse `uint16_t` integer at the current position.
+   */
+  MAJ_CMD_UINT16,
+
+  /**
+   * Parse `uint64_t` integer at the current position.
+   */
+  MAJ_CMD_UINT64,
+
+  /**
+   * Parse JSON object at the current position.
+   */
+  MAJ_CMD_JSON_OBJECT,
+
+  /**
+   * Parse ??? at current position.
+   */
+  MAJ_CMD_C
+
+};
+
+
+/**
+ * @brief Entry in parser specification for #MAJ_parse_json.
+ */
+struct MAJ_Specification
+{
+
+  /**
+   * Command to execute.
+   */
+  enum MAJ_Command cmd;
+
+  /**
+   * Name of the field to access.
+   */
+  const char *field;
+
+  /**
+   * Further details for the command.
+   */
+  union {
+
+    /**
+     * Where to store amount for #MAJ_CMD_AMOUNT.
+     */
+    struct TALER_Amount *amount;
+
+    /**
+     * Where to store time, for #MAJ_CMD_TIME_ABSOLUTE.
+     */
+    struct GNUNET_TIME_Absolute *abs_time;
+
+    /**
+     * Where to write binary data, for #MAJ_CMD_BINARY_FIXED.
+     */
+    struct {
+      /**
+       * Where to write the data.
+       */
+      void *dest;
+
+      /**
+       * How many bytes to write to @e dest.
+       */
+      size_t dest_size;
+
+    } fixed_data;
+
+    /**
+     * Where to write binary data, for #MAJ_CMD_BINARY_VARIABLE.
+     */
+    struct {
+      /**
+       * Where to store the pointer with the data (is allocated).
+       */
+      void **dest_p;
+
+      /**
+       * Where to store the number of bytes allocated at `*dest`.
+       */
+      size_t *dest_size_p;
+
+    } variable_data;
+
+    /**
+     * Where to store the RSA public key for #MAJ_CMD_RSA_PUBLIC_KEY
+     */
+    struct GNUNET_CRYPTO_rsa_PublicKey **rsa_public_key;
+
+    /**
+     * Where to store the RSA signature for #MAJ_CMD_RSA_SIGNATURE
+     */
+    struct GNUNET_CRYPTO_rsa_Signature **rsa_signature;
+
+    /**
+     * Details for #MAJ_CMD_EDDSA_SIGNATURE
+     */
+    struct {
+
+      /**
+       * Where to store the purpose.
+       */
+      struct GNUNET_CRYPTO_EccSignaturePurpose **purpose_p;
+
+      /**
+       * Key to verify the signature against.
+       */
+      const struct GNUNET_CRYPTO_EddsaPublicKey *pub_key;
+
+    } eddsa_signature;
+
+    /**
+     * Where to store a pointer to the string.
+     */
+    const char **strptr;
+
+    /**
+     * Where to store 16-bit integer.
+     */
+    uint16_t *u16;
+
+    /**
+     * Where to store 64-bit integer.
+     */
+    uint64_t *u64;
+
+    /**
+     * Where to store a JSON object.
+     */
+    json_t **obj;
+
+  } details;
+
+};
+
+
+/**
+ * Navigate and parse data in a JSON tree.
+ *
+ * @param root the JSON node to start the navigation at.
+ * @param spec parse specification array
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
+ */
+int
+MAJ_parse_json (const json_t *root,
+                struct MAJ_Specification *spec);
+
+
+/**
+ * Free all elements allocated during a
+ * #MAJ_parse_json() operation.
+ *
+ * @param spec specification of the parse operation
+ */
+void
+MAJ_parse_free (struct MAJ_Specification *spec);
+
+
+/**
+ * End of a parser specification.
+ */
+#define MAJ_spec_end { .cmd = MAJ_CMD_END }
+
+/**
+ * Fixed size object (in network byte order, encoded using Crockford
+ * Base32hex encoding).
+ *
+ * @param name name of the JSON field
+ * @param obj pointer where to write the data (type of `*obj` will determine size)
+ */
+#define MAJ_spec_fixed_auto(name,obj) { .cmd = MAJ_CMD_BINARY_FIXED, .field = name, .details.fixed_data.dest = obj, .details.fixed_data.dest_size = sizeof (*obj) }
+
+
+/**
+ * Variable size object (in network byte order, encoded using Crockford
+ * Base32hex encoding).
+ *
+ * @param name name of the JSON field
+ * @param obj pointer where to write the data (a `void **`)
+ * @param size where to store the number of bytes allocated for @a obj (of type `size_t *`
+ */
+#define MAJ_spec_varsize(name,obj,size) { .cmd = MAJ_CMD_BINARY_VARIABLE, .field = name, .details.variable_data.dest_p = obj, .details.variable_data.dest_size_p = size }
+
+
+/**
+ * The expected field stores a string.
+ *
+ * @param name name of the JSON field
+ * @param strptr where to store a pointer to the field
+ */
+struct MAJ_Specification
+MAJ_spec_string (const char *name,
+                 const char **strptr);
+
+
+/**
+ * Absolute time.
+ *
+ * @param name name of the JSON field
+ * @param[out] at where to store the absolute time found under @a name
+ */
+struct MAJ_Specification
+MAJ_spec_absolute_time (const char *name,
+                        struct GNUNET_TIME_Absolute *at);
+
+
+/**
+ * 16-bit integer.
+ *
+ * @param name name of the JSON field
+ * @param[out] u16 where to store the integer found under @a name
+ */
+struct MAJ_Specification
+MAJ_spec_uint16 (const char *name,
+                 uint16_t *u16);
+
+
+/**
+ * 64-bit integer.
+ *
+ * @param name name of the JSON field
+ * @param[out] u64 where to store the integer found under @a name
+ */
+struct MAJ_Specification
+MAJ_spec_uint64 (const char *name,
+                 uint64_t *u64);
+
+
+/**
+ * JSON object.
+ *
+ * @param name name of the JSON field
+ * @param[out] jsonp where to store the JSON found under @a name
+ */
+struct MAJ_Specification
+MAJ_spec_json (const char *name,
+               json_t **jsonp);
+
+
+/**
+ * Specification for parsing an amount value.
+ *
+ * @param name name of the JSON field
+ * @param amount where to store the amount under @a name
+ */
+struct MAJ_Specification
+MAJ_spec_amount (const char *name,
+                 struct TALER_Amount *amount);
+
+
+/**
+ * Specification for parsing an RSA public key.
+ *
+ * @param name name of the JSON field
+ * @param pk where to store the RSA key found under @a name
+ */
+struct MAJ_Specification
+MAJ_spec_rsa_public_key (const char *name,
+                         struct GNUNET_CRYPTO_rsa_PublicKey **pk);
+
+
+/**
+ * Specification for parsing an RSA signature.
+ *
+ * @param name name of the JSON field
+ * @param sig where to store the RSA signature found under @a name
+ */
+struct MAJ_Specification
+MAJ_spec_rsa_signature (const char *name,
+                        struct GNUNET_CRYPTO_rsa_Signature **sig);
+
+
+
+
+/* end of exchange_api_json.h */
diff --git a/src/exchange-lib/exchange_api_refresh.c b/src/exchange-lib/exchange_api_refresh.c
new file mode 100644
index 000000000..03d59ea3b
--- /dev/null
+++ b/src/exchange-lib/exchange_api_refresh.c
@@ -0,0 +1,2061 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see
+  <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange-lib/exchange_api_refresh.c
+ * @brief Implementation of the /refresh/melt+reveal requests of the exchange's HTTP API
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <curl/curl.h>
+#include <jansson.h>
+#include <microhttpd.h> /* just for HTTP status codes */
+#include <gnunet/gnunet_util_lib.h>
+#include "taler_exchange_service.h"
+#include "exchange_api_common.h"
+#include "exchange_api_json.h"
+#include "exchange_api_context.h"
+#include "exchange_api_handle.h"
+#include "taler_signatures.h"
+
+
+/* ********************* /refresh/ common ***************************** */
+
+/* structures for committing refresh data to disk before doing the
+   network interaction(s) */
+
+GNUNET_NETWORK_STRUCT_BEGIN
+
+/**
+ * Header of serialized information about a coin we are melting.
+ */
+struct MeltedCoinP
+{
+  /**
+   * Private key of the coin.
+   */
+  struct TALER_CoinSpendPrivateKeyP coin_priv;
+
+  /**
+   * Amount this coin contributes to the melt, including fee.
+   */
+  struct TALER_AmountNBO melt_amount_with_fee;
+
+  /**
+   * The applicable fee for withdrawing a coin of this denomination
+   */
+  struct TALER_AmountNBO fee_melt;
+
+  /**
+   * The original value of the coin.
+   */
+  struct TALER_AmountNBO original_value;
+
+  /**
+   * Transfer private keys for each cut-and-choose dimension.
+   */
+  struct TALER_TransferPrivateKeyP transfer_priv[TALER_CNC_KAPPA];
+
+  /**
+   * Timestamp indicating when coins of this denomination become invalid.
+   */
+  struct GNUNET_TIME_AbsoluteNBO deposit_valid_until;
+
+  /**
+   * Size of the encoded public key that follows.
+   */
+  uint16_t pbuf_size;
+
+  /**
+   * Size of the encoded signature that follows.
+   */
+  uint16_t sbuf_size;
+
+  /* Followed by serializations of:
+     1) struct TALER_DenominationPublicKey pub_key;
+     2) struct TALER_DenominationSignature sig;
+  */
+};
+
+
+/**
+ * Header for serializations of coin-specific information about the
+ * fresh coins we generate during a melt.
+ */
+struct FreshCoinP
+{
+
+  /**
+   * Private key of the coin.
+   */
+  struct TALER_CoinSpendPrivateKeyP coin_priv;
+
+  /**
+   * Size of the encoded blinding key that follows.
+   */
+  uint32_t bbuf_size;
+
+  /* Followed by serialization of:
+     - struct TALER_DenominationBlindingKey blinding_key;
+  */
+
+};
+
+
+/**
+ * Header of serialized data about a melt operation, suitable for
+ * persisting it on disk.
+ */
+struct MeltDataP
+{
+
+  /**
+   * Hash over the melting session.
+   */
+  struct GNUNET_HashCode melt_session_hash;
+
+  /**
+   * Link secret used to encrypt the @a coin_priv and the blinding
+   * key in the linkage data for the respective cut-and-choose dimension.
+   */
+  struct TALER_LinkSecretP link_secrets[TALER_CNC_KAPPA];
+
+  /**
+   * Number of coins we are melting, in NBO
+   */
+  uint16_t num_melted_coins GNUNET_PACKED;
+
+  /**
+   * Number of coins we are creating, in NBO
+   */
+  uint16_t num_fresh_coins GNUNET_PACKED;
+
+  /* Followed by serializations of:
+     1) struct MeltedCoinP melted_coins[num_melted_coins];
+     2) struct TALER_EXCHANGE_DenomPublicKey fresh_pks[num_fresh_coins];
+     3) TALER_CNC_KAPPA times:
+        3a) struct FreshCoinP fresh_coins[num_fresh_coins];
+  */
+};
+
+
+GNUNET_NETWORK_STRUCT_END
+
+
+/**
+ * Information about a coin we are melting.
+ */
+struct MeltedCoin
+{
+  /**
+   * Private key of the coin.
+   */
+  struct TALER_CoinSpendPrivateKeyP coin_priv;
+
+  /**
+   * Amount this coin contributes to the melt, including fee.
+   */
+  struct TALER_Amount melt_amount_with_fee;
+
+  /**
+   * The applicable fee for melting a coin of this denomination
+   */
+  struct TALER_Amount fee_melt;
+
+  /**
+   * The original value of the coin.
+   */
+  struct TALER_Amount original_value;
+
+  /**
+   * Transfer private keys for each cut-and-choose dimension.
+   */
+  struct TALER_TransferPrivateKeyP transfer_priv[TALER_CNC_KAPPA];
+
+  /**
+   * Timestamp indicating when coins of this denomination become invalid.
+   */
+  struct GNUNET_TIME_Absolute deposit_valid_until;
+
+  /**
+   * Denomination key of the original coin.
+   */
+  struct TALER_DenominationPublicKey pub_key;
+
+  /**
+   * Exchange's signature over the coin.
+   */
+  struct TALER_DenominationSignature sig;
+
+};
+
+
+/**
+ * Coin-specific information about the fresh coins we generate during
+ * a melt.
+ */
+struct FreshCoin
+{
+
+  /**
+   * Private key of the coin.
+   */
+  struct TALER_CoinSpendPrivateKeyP coin_priv;
+
+  /**
+   * Blinding key used for blinding during blind signing.
+   */
+  struct TALER_DenominationBlindingKey blinding_key;
+
+};
+
+
+/**
+ * Melt data in non-serialized format for convenient processing.
+ */
+struct MeltData
+{
+
+  /**
+   * Hash over the melting session.
+   */
+  struct GNUNET_HashCode melt_session_hash;
+
+  /**
+   * Link secrets for each cut-and-choose dimension.
+   */
+  struct TALER_LinkSecretP link_secrets[TALER_CNC_KAPPA];
+
+  /**
+   * Number of coins we are melting
+   */
+  uint16_t num_melted_coins;
+
+  /**
+   * Number of coins we are creating
+   */
+  uint16_t num_fresh_coins;
+
+  /**
+   * Information about the melted coins in an array of length @e
+   * num_melted_coins.
+   */
+  struct MeltedCoin *melted_coins;
+
+  /**
+   * Array of @e num_fresh_coins denomination keys for the coins to be
+   * freshly exchangeed.
+   */
+  struct TALER_DenominationPublicKey *fresh_pks;
+
+  /**
+   * Arrays of @e num_fresh_coins with information about the fresh
+   * coins to be created, for each cut-and-choose dimension.
+   */
+  struct FreshCoin *fresh_coins[TALER_CNC_KAPPA];
+};
+
+
+/**
+ * Free all information associated with a melted coin session.
+ *
+ * @param mc melted coin to release, the pointer itself is NOT
+ *           freed (as it is typically not allocated by itself)
+ */
+static void
+free_melted_coin (struct MeltedCoin *mc)
+{
+  if (NULL == mc)
+    return;
+  if (NULL != mc->pub_key.rsa_public_key)
+    GNUNET_CRYPTO_rsa_public_key_free (mc->pub_key.rsa_public_key);
+  if (NULL != mc->sig.rsa_signature)
+    GNUNET_CRYPTO_rsa_signature_free (mc->sig.rsa_signature);
+}
+
+
+/**
+ * Free all information associated with a fresh coin.
+ *
+ * @param fc fresh coin to release, the pointer itself is NOT
+ *           freed (as it is typically not allocated by itself)
+ */
+static void
+free_fresh_coin (struct FreshCoin *fc)
+{
+  if (NULL == fc)
+    return;
+  if (NULL != fc->blinding_key.rsa_blinding_key)
+    GNUNET_CRYPTO_rsa_blinding_key_free (fc->blinding_key.rsa_blinding_key);
+}
+
+
+/**
+ * Free all information associated with a melting session.  Note
+ * that we allow the melting session to be only partially initialized,
+ * as we use this function also when freeing melt data that was not
+ * fully initialized (i.e. due to failures in #deserialize_melt_data()).
+ *
+ * @param md melting data to release, the pointer itself is NOT
+ *           freed (as it is typically not allocated by itself)
+ */
+static void
+free_melt_data (struct MeltData *md)
+{
+  unsigned int i;
+  unsigned int j;
+
+  if (NULL != md->melted_coins)
+  {
+    for (i=0;i<md->num_melted_coins;i++)
+      free_melted_coin (&md->melted_coins[i]);
+    GNUNET_free (md->melted_coins);
+  }
+  if (NULL != md->fresh_pks)
+  {
+    for (i=0;i<md->num_fresh_coins;i++)
+      if (NULL != md->fresh_pks[i].rsa_public_key)
+        GNUNET_CRYPTO_rsa_public_key_free (md->fresh_pks[i].rsa_public_key);
+    GNUNET_free (md->fresh_pks);
+  }
+
+  for (i=0;i<TALER_CNC_KAPPA;i++)
+  {
+    for (j=0;j<md->num_fresh_coins;j++)
+      free_fresh_coin (&md->fresh_coins[i][j]);
+    GNUNET_free (md->fresh_coins[i]);
+  }
+  /* Finally, clean up a bit...
+     (NOTE: compilers might optimize this away, so this is
+     not providing any strong assurances that the key material
+     is purged.) */
+  memset (md,
+          0,
+          sizeof (struct MeltData));
+}
+
+
+/**
+ * Serialize information about a coin we are melting.
+ *
+ * @param mc information to serialize
+ * @param buf buffer to write data in, NULL to just compute
+ *            required size
+ * @param off offeset at @a buf to use
+ * @return number of bytes written to @a buf at @a off, or if
+ *        @a buf is NULL, number of bytes required; 0 on error
+ */
+static size_t
+serialize_melted_coin (const struct MeltedCoin *mc,
+                       char *buf,
+                       size_t off)
+{
+  struct MeltedCoinP mcp;
+  unsigned int i;
+  char *pbuf;
+  size_t pbuf_size;
+  char *sbuf;
+  size_t sbuf_size;
+
+  sbuf_size = GNUNET_CRYPTO_rsa_signature_encode (mc->sig.rsa_signature,
+                                                  &sbuf);
+  pbuf_size = GNUNET_CRYPTO_rsa_public_key_encode (mc->pub_key.rsa_public_key,
+                                                   &pbuf);
+  if (NULL == buf)
+  {
+    GNUNET_free (sbuf);
+    GNUNET_free (pbuf);
+    return sizeof (struct MeltedCoinP) + sbuf_size + pbuf_size;
+  }
+  if ( (sbuf_size > UINT16_MAX) ||
+       (pbuf_size > UINT16_MAX) )
+  {
+    GNUNET_break (0);
+    return 0;
+  }
+  mcp.coin_priv = mc->coin_priv;
+  TALER_amount_hton (&mcp.melt_amount_with_fee,
+                     &mc->melt_amount_with_fee);
+  TALER_amount_hton (&mcp.fee_melt,
+                     &mc->fee_melt);
+  TALER_amount_hton (&mcp.original_value,
+                     &mc->original_value);
+  for (i=0;i<TALER_CNC_KAPPA;i++)
+    mcp.transfer_priv[i] = mc->transfer_priv[i];
+  mcp.deposit_valid_until = GNUNET_TIME_absolute_hton (mc->deposit_valid_until);
+  mcp.pbuf_size = htons ((uint16_t) pbuf_size);
+  mcp.sbuf_size = htons ((uint16_t) sbuf_size);
+  memcpy (&buf[off],
+          &mcp,
+          sizeof (struct MeltedCoinP));
+  memcpy (&buf[off + sizeof (struct MeltedCoinP)],
+          pbuf,
+          pbuf_size);
+  memcpy (&buf[off + sizeof (struct MeltedCoinP) + pbuf_size],
+          sbuf,
+          sbuf_size);
+  GNUNET_free (sbuf);
+  GNUNET_free (pbuf);
+  return sizeof (struct MeltedCoinP) + sbuf_size + pbuf_size;
+}
+
+
+/**
+ * Deserialize information about a coin we are melting.
+ *
+ * @param[out] mc information to deserialize
+ * @param buf buffer to read data from
+ * @param size number of bytes available at @a buf to use
+ * @param[out] ok set to #GNUNET_NO to report errors
+ * @return number of bytes read from @a buf, 0 on error
+ */
+static size_t
+deserialize_melted_coin (struct MeltedCoin *mc,
+                         const char *buf,
+                         size_t size,
+                         int *ok)
+{
+  struct MeltedCoinP mcp;
+  unsigned int i;
+  size_t pbuf_size;
+  size_t sbuf_size;
+  size_t off;
+
+  if (size < sizeof (struct MeltedCoinP))
+  {
+    GNUNET_break (0);
+    *ok = GNUNET_NO;
+    return 0;
+  }
+  memcpy (&mcp,
+          buf,
+          sizeof (struct MeltedCoinP));
+  pbuf_size = ntohs (mcp.pbuf_size);
+  sbuf_size = ntohs (mcp.sbuf_size);
+  if (size < sizeof (struct MeltedCoinP) + pbuf_size + sbuf_size)
+  {
+    GNUNET_break (0);
+    *ok = GNUNET_NO;
+    return 0;
+  }
+  off = sizeof (struct MeltedCoinP);
+  mc->pub_key.rsa_public_key
+    = GNUNET_CRYPTO_rsa_public_key_decode (&buf[off],
+                                           pbuf_size);
+  off += pbuf_size;
+  mc->sig.rsa_signature
+    = GNUNET_CRYPTO_rsa_signature_decode (&buf[off],
+                                          sbuf_size);
+  off += sbuf_size;
+  if ( (NULL == mc->pub_key.rsa_public_key) ||
+       (NULL == mc->sig.rsa_signature) )
+  {
+    GNUNET_break (0);
+    *ok = GNUNET_NO;
+    return 0;
+  }
+
+  mc->coin_priv = mcp.coin_priv;
+  TALER_amount_ntoh (&mc->melt_amount_with_fee,
+                     &mcp.melt_amount_with_fee);
+  TALER_amount_ntoh (&mc->fee_melt,
+                     &mcp.fee_melt);
+  TALER_amount_ntoh (&mc->original_value,
+                     &mcp.original_value);
+  for (i=0;i<TALER_CNC_KAPPA;i++)
+    mc->transfer_priv[i] = mcp.transfer_priv[i];
+  mc->deposit_valid_until = GNUNET_TIME_absolute_ntoh (mcp.deposit_valid_until);
+  return off;
+}
+
+
+/**
+ * Serialize information about a denomination key.
+ *
+ * @param dk information to serialize
+ * @param buf buffer to write data in, NULL to just compute
+ *            required size
+ * @param off offeset at @a buf to use
+ * @return number of bytes written to @a buf at @a off, or if
+ *        @a buf is NULL, number of bytes required
+ */
+static size_t
+serialize_denomination_key (const struct TALER_DenominationPublicKey *dk,
+                            char *buf,
+                            size_t off)
+{
+  char *pbuf;
+  size_t pbuf_size;
+  uint32_t be;
+
+  pbuf_size = GNUNET_CRYPTO_rsa_public_key_encode (dk->rsa_public_key,
+                                                   &pbuf);
+  if (NULL == buf)
+  {
+    GNUNET_free (pbuf);
+    return pbuf_size + sizeof (uint32_t);
+  }
+  be = htonl ((uint32_t) pbuf_size);
+  memcpy (&buf[off],
+          &be,
+          sizeof (uint32_t));
+  memcpy (&buf[off + sizeof (uint32_t)],
+          pbuf,
+          pbuf_size);
+  GNUNET_free (pbuf);
+  return pbuf_size + sizeof (uint32_t);
+}
+
+
+/**
+ * Deserialize information about a denomination key.
+ *
+ * @param[out] dk information to deserialize
+ * @param buf buffer to read data from
+ * @param size number of bytes available at @a buf to use
+ * @param[out] ok set to #GNUNET_NO to report errors
+ * @return number of bytes read from @a buf, 0 on error
+ */
+static size_t
+deserialize_denomination_key (struct TALER_DenominationPublicKey *dk,
+                              const char *buf,
+                              size_t size,
+                              int *ok)
+{
+  size_t pbuf_size;
+  uint32_t be;
+
+  if (size < sizeof (uint32_t))
+  {
+    GNUNET_break (0);
+    *ok = GNUNET_NO;
+    return 0;
+  }
+  memcpy (&be,
+          buf,
+          sizeof (uint32_t));
+  pbuf_size = ntohl (be);
+  if (size < sizeof (uint32_t) + pbuf_size)
+  {
+    GNUNET_break (0);
+    *ok = GNUNET_NO;
+    return 0;
+  }
+  dk->rsa_public_key
+    = GNUNET_CRYPTO_rsa_public_key_decode (&buf[sizeof (uint32_t)],
+                                           pbuf_size);
+
+  if (NULL == dk->rsa_public_key)
+  {
+    GNUNET_break (0);
+    *ok = GNUNET_NO;
+    return 0;
+  }
+  return sizeof (uint32_t) + pbuf_size;
+}
+
+
+/**
+ * Serialize information about a fresh coin we are generating.
+ *
+ * @param fc information to serialize
+ * @param buf buffer to write data in, NULL to just compute
+ *            required size
+ * @param off offeset at @a buf to use
+ * @return number of bytes written to @a buf at @a off, or if
+ *        @a buf is NULL, number of bytes required
+ */
+static size_t
+serialize_fresh_coin (const struct FreshCoin *fc,
+                      char *buf,
+                      size_t off)
+{
+  struct FreshCoinP fcp;
+  char *bbuf;
+  size_t bbuf_size;
+
+  bbuf_size = GNUNET_CRYPTO_rsa_blinding_key_encode (fc->blinding_key.rsa_blinding_key,
+                                                     &bbuf);
+  if (NULL == buf)
+  {
+    GNUNET_free (bbuf);
+    return sizeof (struct FreshCoinP) + bbuf_size;
+  }
+  fcp.coin_priv = fc->coin_priv;
+  fcp.bbuf_size = htonl ((uint32_t) bbuf_size);
+  memcpy (&buf[off],
+          &fcp,
+          sizeof (struct FreshCoinP));
+  memcpy (&buf[off + sizeof (struct FreshCoinP)],
+          bbuf,
+          bbuf_size);
+  GNUNET_free (bbuf);
+  return sizeof (struct FreshCoinP) + bbuf_size;
+}
+
+
+/**
+ * Deserialize information about a fresh coin we are generating.
+ *
+ * @param[out] fc information to deserialize
+ * @param buf buffer to read data from
+ * @param size number of bytes available at @a buf to use
+ * @param[out] ok set to #GNUNET_NO to report errors
+ * @return number of bytes read from @a buf, 0 on error
+ */
+static size_t
+deserialize_fresh_coin (struct FreshCoin *fc,
+                        const char *buf,
+                        size_t size,
+                        int *ok)
+{
+  struct FreshCoinP fcp;
+  size_t bbuf_size;
+
+  if (size < sizeof (struct FreshCoinP))
+  {
+    GNUNET_break (0);
+    *ok = GNUNET_NO;
+    return 0;
+  }
+  memcpy (&fcp,
+          buf,
+          sizeof (struct FreshCoinP));
+  bbuf_size = ntohl (fcp.bbuf_size);
+  if (size < sizeof (struct FreshCoinP) + bbuf_size)
+  {
+    GNUNET_break (0);
+    *ok = GNUNET_NO;
+    return 0;
+  }
+  fc->blinding_key.rsa_blinding_key
+    = GNUNET_CRYPTO_rsa_blinding_key_decode (&buf[sizeof (struct FreshCoinP)],
+                                             bbuf_size);
+  if (NULL == fc->blinding_key.rsa_blinding_key)
+  {
+    GNUNET_break (0);
+    *ok = GNUNET_NO;
+    return 0;
+  }
+  fc->coin_priv = fcp.coin_priv;
+  return sizeof (struct FreshCoinP) + bbuf_size;
+}
+
+
+/**
+ * Serialize melt data.
+ *
+ * @param md data to serialize
+ * @param[out] res_size size of buffer returned
+ * @return serialized melt data
+ */
+static char *
+serialize_melt_data (const struct MeltData *md,
+                     size_t *res_size)
+{
+  size_t size;
+  size_t asize;
+  char *buf;
+  unsigned int i;
+  unsigned int j;
+
+  size = 0;
+  asize = (size_t) -1; /* make the compiler happy */
+  buf = NULL;
+  /* we do 2 iterations, #1 to determine total size, #2 to
+     actually construct the buffer */
+  do {
+    if (0 == size)
+    {
+      size = sizeof (struct MeltDataP);
+    }
+    else
+    {
+      struct MeltDataP *mdp;
+
+      buf = GNUNET_malloc (size);
+      asize = size; /* just for invariant check later */
+      size = sizeof (struct MeltDataP);
+      mdp = (struct MeltDataP *) buf;
+      mdp->melt_session_hash = md->melt_session_hash;
+      for (i=0;i<TALER_CNC_KAPPA;i++)
+        mdp->link_secrets[i] = md->link_secrets[i];
+      mdp->num_melted_coins = htons (md->num_melted_coins);
+      mdp->num_fresh_coins = htons (md->num_fresh_coins);
+    }
+    for (i=0;i<md->num_melted_coins;i++)
+      size += serialize_melted_coin (&md->melted_coins[i],
+                                     buf,
+                                     size);
+    for (i=0;i<md->num_fresh_coins;i++)
+      size += serialize_denomination_key (&md->fresh_pks[i],
+                                          buf,
+                                          size);
+    for (i=0;i<TALER_CNC_KAPPA;i++)
+      for(j=0;j<md->num_fresh_coins;j++)
+        size += serialize_fresh_coin (&md->fresh_coins[i][j],
+                                      buf,
+                                      size);
+  } while (NULL == buf);
+  GNUNET_assert (size == asize);
+  *res_size = size;
+  return buf;
+}
+
+
+/**
+ * Deserialize melt data.
+ *
+ * @param buf serialized data
+ * @param buf_size size of @a buf
+ * @return deserialized melt data, NULL on error
+ */
+static struct MeltData *
+deserialize_melt_data (const char *buf,
+                       size_t buf_size)
+{
+  struct MeltData *md;
+  struct MeltDataP mdp;
+  unsigned int i;
+  unsigned int j;
+  size_t off;
+  int ok;
+
+  if (buf_size < sizeof (struct MeltDataP))
+    return NULL;
+  memcpy (&mdp,
+          buf,
+          sizeof (struct MeltDataP));
+  md = GNUNET_new (struct MeltData);
+  md->melt_session_hash = mdp.melt_session_hash;
+  for (i=0;i<TALER_CNC_KAPPA;i++)
+    md->link_secrets[i] = mdp.link_secrets[i];
+  md->num_melted_coins = ntohs (mdp.num_melted_coins);
+  md->num_fresh_coins = ntohs (mdp.num_fresh_coins);
+  md->melted_coins = GNUNET_new_array (md->num_melted_coins,
+                                       struct MeltedCoin);
+  md->fresh_pks = GNUNET_new_array (md->num_fresh_coins,
+                                    struct TALER_DenominationPublicKey);
+  for (i=0;i<TALER_CNC_KAPPA;i++)
+    md->fresh_coins[i] = GNUNET_new_array (md->num_fresh_coins,
+                                           struct FreshCoin);
+  off = sizeof (struct MeltDataP);
+  ok = GNUNET_YES;
+  for (i=0;(i<md->num_melted_coins)&&(GNUNET_YES == ok);i++)
+    off += deserialize_melted_coin (&md->melted_coins[i],
+                                    &buf[off],
+                                    buf_size - off,
+                                    &ok);
+  for (i=0;(i<md->num_fresh_coins)&&(GNUNET_YES == ok);i++)
+    off += deserialize_denomination_key (&md->fresh_pks[i],
+                                         &buf[off],
+                                         buf_size - off,
+                                         &ok);
+
+  for (i=0;i<TALER_CNC_KAPPA;i++)
+    for(j=0;(j<md->num_fresh_coins)&&(GNUNET_YES == ok);j++)
+      off += deserialize_fresh_coin (&md->fresh_coins[i][j],
+                                     &buf[off],
+                                     buf_size - off,
+                                     &ok);
+  if (off != buf_size)
+  {
+    GNUNET_break (0);
+    ok = GNUNET_NO;
+  }
+  if (GNUNET_YES != ok)
+  {
+    free_melt_data (md);
+    GNUNET_free (md);
+    return NULL;
+  }
+  return md;
+}
+
+
+/**
+ * Setup information for a fresh coin.
+ *
+ * @param[out] fc value to initialize
+ * @param pk denomination information for the fresh coin
+ */
+static void
+setup_fresh_coin (struct FreshCoin *fc,
+                  const struct TALER_EXCHANGE_DenomPublicKey *pk)
+{
+  struct GNUNET_CRYPTO_EddsaPrivateKey *epk;
+  unsigned int len;
+
+  epk = GNUNET_CRYPTO_eddsa_key_create ();
+  fc->coin_priv.eddsa_priv = *epk;
+  GNUNET_free (epk);
+  len = GNUNET_CRYPTO_rsa_public_key_len (pk->key.rsa_public_key);
+  fc->blinding_key.rsa_blinding_key
+    = GNUNET_CRYPTO_rsa_blinding_key_create (len);
+}
+
+
+/**
+ * Melt (partially spent) coins to obtain fresh coins that are
+ * unlinkable to the original coin(s).  Note that melting more
+ * than one coin in a single request will make those coins linkable,
+ * so the safest operation only melts one coin at a time.
+ *
+ * This API is typically used by a wallet.  Note that to ensure that
+ * no money is lost in case of hardware failures, is operation does
+ * not actually initiate the request. Instead, it generates a buffer
+ * which the caller must store before proceeding with the actual call
+ * to #TALER_EXCHANGE_refresh_melt() that will generate the request.
+ *
+ * This function does verify that the given request data is internally
+ * consistent.  However, the @a melts_sigs are only verified if
+ * @a check_sigs is set to #GNUNET_YES, as this may be relatively
+ * expensive and should be redundant.
+ *
+ * Aside from some non-trivial cryptographic operations that might
+ * take a bit of CPU time to complete, this function returns
+ * its result immediately and does not start any asynchronous
+ * processing.  This function is also thread-safe.
+ *
+ * @param num_melts number of coins that are being melted (typically 1)
+ * @param melt_privs array of @a num_melts private keys of the coins to melt
+ * @param melt_amounts array of @a num_melts amounts specifying how much
+ *                     each coin will contribute to the melt (including fee)
+ * @param melt_sigs array of @a num_melts signatures affirming the
+ *                   validity of the public keys corresponding to the
+ *                   @a melt_privs private keys
+ * @param melt_pks array of @a num_melts denomination key information
+ *                   records corresponding to the @a melt_sigs
+ *                   validity of the keys
+ * @param check_sigs verify the validity of the signatures of @a melt_sigs
+ * @param fresh_pks_len length of the @a pks array
+ * @param fresh_pks array of @a pks_len denominations of fresh coins to create
+ * @param[out] res_size set to the size of the return value, or 0 on error
+ * @return NULL
+ *         if the inputs are invalid (i.e. denomination key not with this exchange).
+ *         Otherwise, pointer to a buffer of @a res_size to store persistently
+ *         before proceeding to #TALER_EXCHANGE_refresh_melt().
+ *         Non-null results should be freed using #GNUNET_free().
+ */
+char *
+TALER_EXCHANGE_refresh_prepare (unsigned int num_melts,
+                            const struct TALER_CoinSpendPrivateKeyP *melt_privs,
+                            const struct TALER_Amount *melt_amounts,
+                            const struct TALER_DenominationSignature *melt_sigs,
+                            const struct TALER_EXCHANGE_DenomPublicKey *melt_pks,
+                            int check_sigs,
+                            unsigned int fresh_pks_len,
+                            const struct TALER_EXCHANGE_DenomPublicKey *fresh_pks,
+                            size_t *res_size)
+{
+  struct MeltData md;
+  char *buf;
+  unsigned int i;
+  unsigned int j;
+  struct GNUNET_HashContext *hash_context;
+
+  /* build up melt data structure */
+  for (i=0;i<TALER_CNC_KAPPA;i++)
+    GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_STRONG,
+                                &md.link_secrets[i],
+                                sizeof (struct TALER_LinkSecretP));
+  md.num_melted_coins = num_melts;
+  md.num_fresh_coins = fresh_pks_len;
+  md.melted_coins = GNUNET_new_array (num_melts,
+                                      struct MeltedCoin);
+  for (i=0;i<num_melts;i++)
+  {
+    md.melted_coins[i].coin_priv = melt_privs[i];
+    md.melted_coins[i].melt_amount_with_fee = melt_amounts[i];
+    md.melted_coins[i].fee_melt = melt_pks[i].fee_refresh;
+    md.melted_coins[i].original_value = melt_pks[i].value;
+    for (j=0;j<TALER_CNC_KAPPA;j++)
+    {
+      struct GNUNET_CRYPTO_EcdhePrivateKey *tpk;
+
+      tpk = GNUNET_CRYPTO_ecdhe_key_create ();
+      md.melted_coins[i].transfer_priv[j].ecdhe_priv = *tpk;
+      GNUNET_free (tpk);
+    }
+    md.melted_coins[i].deposit_valid_until
+      = melt_pks[i].deposit_valid_until;
+    md.melted_coins[i].pub_key.rsa_public_key
+      = GNUNET_CRYPTO_rsa_public_key_dup (melt_pks[i].key.rsa_public_key);
+    md.melted_coins[i].sig.rsa_signature
+      = GNUNET_CRYPTO_rsa_signature_dup (melt_sigs[i].rsa_signature);
+  }
+  md.fresh_pks = GNUNET_new_array (fresh_pks_len,
+                                   struct TALER_DenominationPublicKey);
+  for (i=0;i<fresh_pks_len;i++)
+    md.fresh_pks[i].rsa_public_key
+      = GNUNET_CRYPTO_rsa_public_key_dup (fresh_pks[i].key.rsa_public_key);
+  for (i=0;i<TALER_CNC_KAPPA;i++)
+  {
+    md.fresh_coins[i] = GNUNET_new_array (fresh_pks_len,
+                                          struct FreshCoin);
+    for (j=0;j<fresh_pks_len;j++)
+      setup_fresh_coin (&md.fresh_coins[i][j],
+                        &fresh_pks[j]);
+  }
+
+  /* now compute melt session hash */
+  hash_context = GNUNET_CRYPTO_hash_context_start ();
+  for (i=0;i<fresh_pks_len;i++)
+  {
+    char *buf;
+    size_t buf_size;
+
+    buf_size = GNUNET_CRYPTO_rsa_public_key_encode (fresh_pks[i].key.rsa_public_key,
+                                                    &buf);
+    GNUNET_CRYPTO_hash_context_read (hash_context,
+                                     buf,
+                                     buf_size);
+    GNUNET_free (buf);
+  }
+  for (i=0;i<num_melts;i++)
+  {
+    struct TALER_CoinSpendPublicKeyP coin_pub;
+    struct TALER_AmountNBO melt_amount;
+
+    GNUNET_CRYPTO_eddsa_key_get_public (&melt_privs[i].eddsa_priv,
+                                        &coin_pub.eddsa_pub);
+    GNUNET_CRYPTO_hash_context_read (hash_context,
+                                     &coin_pub,
+                                     sizeof (struct TALER_CoinSpendPublicKeyP));
+    TALER_amount_hton (&melt_amount,
+                       &melt_amounts[i]);
+    GNUNET_CRYPTO_hash_context_read (hash_context,
+                                     &melt_amount,
+                                     sizeof (struct TALER_AmountNBO));
+
+  }
+  for (i = 0; i < TALER_CNC_KAPPA; i++)
+  {
+    for (j = 0; j < fresh_pks_len; j++)
+    {
+      const struct FreshCoin *fc; /* coin this is about */
+      struct TALER_CoinSpendPublicKeyP coin_pub;
+      struct GNUNET_HashCode coin_hash;
+      char *coin_ev; /* blinded message to be signed (in envelope) for each coin */
+      size_t coin_ev_size;
+      struct TALER_RefreshLinkDecrypted rld;
+      struct TALER_RefreshLinkEncrypted *rle;
+      char *link_enc; /* encrypted link data */
+      size_t link_enc_size;
+
+      fc = &md.fresh_coins[i][j];
+      GNUNET_CRYPTO_eddsa_key_get_public (&fc->coin_priv.eddsa_priv,
+                                          &coin_pub.eddsa_pub);
+      GNUNET_CRYPTO_hash (&coin_pub.eddsa_pub,
+                          sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey),
+                          &coin_hash);
+      coin_ev_size = GNUNET_CRYPTO_rsa_blind (&coin_hash,
+                                              fc->blinding_key.rsa_blinding_key,
+                                              md.fresh_pks[j].rsa_public_key,
+                                              &coin_ev);
+      GNUNET_CRYPTO_hash_context_read (hash_context,
+                                       coin_ev,
+                                       coin_ev_size);
+      GNUNET_free (coin_ev);
+
+      rld.coin_priv = fc->coin_priv;
+      rld.blinding_key = fc->blinding_key;
+      rle = TALER_refresh_encrypt (&rld,
+                                   &md.link_secrets[i]);
+      link_enc = TALER_refresh_link_encrypted_encode (rle,
+                                                      &link_enc_size);
+
+      GNUNET_CRYPTO_hash_context_read (hash_context,
+                                       link_enc,
+                                       link_enc_size);
+      GNUNET_free (link_enc);
+    }
+  }
+  for (i = 0; i < TALER_CNC_KAPPA; i++)
+  {
+    for (j = 0; j < num_melts; j++)
+    {
+      struct TALER_RefreshCommitLinkP rcl;
+      struct TALER_TransferSecretP trans_sec;
+
+      GNUNET_CRYPTO_ecdhe_key_get_public (&md.melted_coins[j].transfer_priv[i].ecdhe_priv,
+                                          &rcl.transfer_pub.ecdhe_pub);
+      TALER_link_derive_transfer_secret  (&melt_privs[j],
+                                          &md.melted_coins[j].transfer_priv[i],
+                                          &trans_sec);
+      TALER_transfer_encrypt (&md.link_secrets[i],
+                              &trans_sec,
+                              &rcl.shared_secret_enc);
+      GNUNET_CRYPTO_hash_context_read (hash_context,
+                                       &rcl,
+                                       sizeof (struct TALER_RefreshCommitLinkP));
+    }
+  }
+
+  GNUNET_CRYPTO_hash_context_finish (hash_context,
+                                     &md.melt_session_hash);
+
+  /* finally, serialize everything */
+  buf = serialize_melt_data (&md,
+                             res_size);
+  free_melt_data (&md);
+  return buf;
+}
+
+
+/* ********************* /refresh/melt ***************************** */
+
+
+/**
+ * @brief A /refresh/melt Handle
+ */
+struct TALER_EXCHANGE_RefreshMeltHandle
+{
+
+  /**
+   * The connection to exchange this request handle will use
+   */
+  struct TALER_EXCHANGE_Handle *exchange;
+
+  /**
+   * The url for this request.
+   */
+  char *url;
+
+  /**
+   * JSON encoding of the request to POST.
+   */
+  char *json_enc;
+
+  /**
+   * Handle for the request.
+   */
+  struct MAC_Job *job;
+
+  /**
+   * Function to call with refresh melt failure results.
+   */
+  TALER_EXCHANGE_RefreshMeltCallback melt_cb;
+
+  /**
+   * Closure for @e result_cb and @e melt_failure_cb.
+   */
+  void *melt_cb_cls;
+
+  /**
+   * Download buffer
+   */
+  struct MAC_DownloadBuffer db;
+
+  /**
+   * Actual information about the melt operation.
+   */
+  struct MeltData *md;
+};
+
+
+/**
+ * Verify that the signature on the "200 OK" response
+ * from the exchange is valid.
+ *
+ * @param rmh melt handle
+ * @param json json reply with the signature
+ * @param[out] noreveal_index set to the noreveal index selected by the exchange
+ * @return #GNUNET_OK if the signature is valid, #GNUNET_SYSERR if not
+ */
+static int
+verify_refresh_melt_signature_ok (struct TALER_EXCHANGE_RefreshMeltHandle *rmh,
+                                  json_t *json,
+                                  uint16_t *noreveal_index)
+{
+  struct TALER_ExchangeSignatureP exchange_sig;
+  struct TALER_ExchangePublicKeyP exchange_pub;
+  const struct TALER_EXCHANGE_Keys *key_state;
+  struct MAJ_Specification spec[] = {
+    MAJ_spec_fixed_auto ("exchange_sig", &exchange_sig),
+    MAJ_spec_fixed_auto ("exchange_pub", &exchange_pub),
+    MAJ_spec_uint16 ("noreveal_index", noreveal_index),
+    MAJ_spec_end
+  };
+  struct TALER_RefreshMeltConfirmationPS confirm;
+
+  if (GNUNET_OK !=
+      MAJ_parse_json (json,
+                      spec))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+
+  /* check that exchange signing key is permitted */
+  key_state = TALER_EXCHANGE_get_keys (rmh->exchange);
+  if (GNUNET_OK !=
+      TALER_EXCHANGE_test_signing_key (key_state,
+                                   &exchange_pub))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+
+  /* check that noreveal index is in permitted range */
+  if (TALER_CNC_KAPPA <= *noreveal_index)
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+
+  /* verify signature by exchange */
+  confirm.purpose.purpose = htonl (TALER_SIGNATURE_EXCHANGE_CONFIRM_MELT);
+  confirm.purpose.size = htonl (sizeof (struct TALER_RefreshMeltConfirmationPS));
+  confirm.session_hash = rmh->md->melt_session_hash;
+  confirm.noreveal_index = htons (*noreveal_index);
+  confirm.reserved = htons (0);
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_EXCHANGE_CONFIRM_MELT,
+                                  &confirm.purpose,
+                                  &exchange_sig.eddsa_signature,
+                                  &exchange_pub.eddsa_pub))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Verify that the signatures on the "403 FORBIDDEN" response from the
+ * exchange demonstrating customer double-spending are valid.
+ *
+ * @param rmh melt handle
+ * @param json json reply with the signature(s) and transaction history
+ * @return #GNUNET_OK if the signature(s) is valid, #GNUNET_SYSERR if not
+ */
+static int
+verify_refresh_melt_signature_forbidden (struct TALER_EXCHANGE_RefreshMeltHandle *rmh,
+                                         json_t *json)
+{
+  json_t *history;
+  struct TALER_Amount original_value;
+  struct TALER_Amount melt_value_with_fee;
+  struct TALER_Amount total;
+  struct TALER_CoinSpendPublicKeyP coin_pub;
+  unsigned int i;
+  struct MAJ_Specification spec[] = {
+    MAJ_spec_json ("history", &history),
+    MAJ_spec_fixed_auto ("coin_pub", &coin_pub),
+    MAJ_spec_amount ("original_value", &original_value),
+    MAJ_spec_amount ("requested_value", &melt_value_with_fee),
+    MAJ_spec_end
+  };
+  const struct MeltedCoin *mc;
+
+  /* parse JSON reply */
+  if (GNUNET_OK !=
+      MAJ_parse_json (json,
+                      spec))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+
+  /* Find out which coin was deemed problematic by the exchange */
+  mc = NULL;
+  for (i=0;i<rmh->md->num_melted_coins;i++)
+  {
+    if (0 == TALER_amount_cmp (&melt_value_with_fee,
+                               &rmh->md->melted_coins[i].melt_amount_with_fee))
+    {
+      struct TALER_CoinSpendPublicKeyP mc_pub;
+
+      GNUNET_CRYPTO_eddsa_key_get_public (&rmh->md->melted_coins[i].coin_priv.eddsa_priv,
+                                          &mc_pub.eddsa_pub);
+      if (0 == memcmp (&mc_pub,
+                       &coin_pub,
+                       sizeof (struct TALER_CoinSpendPublicKeyP)))
+      {
+        mc = &rmh->md->melted_coins[i];
+        break;
+      }
+    }
+  }
+  if (NULL == mc)
+  {
+    /* coin not found in our original request */
+    GNUNET_break_op (0);
+    json_decref (history);
+    return GNUNET_SYSERR;
+  }
+
+  /* check basic coin properties */
+  if (0 != TALER_amount_cmp (&original_value,
+                             &mc->original_value))
+  {
+    /* We disagree on the value of the coin */
+    GNUNET_break_op (0);
+    json_decref (history);
+    return GNUNET_SYSERR;
+  }
+  if (0 != TALER_amount_cmp (&melt_value_with_fee,
+                             &mc->melt_amount_with_fee))
+  {
+    /* We disagree on the value of the coin */
+    GNUNET_break_op (0);
+    json_decref (history);
+    return GNUNET_SYSERR;
+  }
+
+  /* verify coin history */
+  history = json_object_get (json,
+                             "history");
+  if (GNUNET_OK !=
+      TALER_EXCHANGE_verify_coin_history_ (original_value.currency,
+                                       &coin_pub,
+                                       history,
+                                       &total))
+  {
+    GNUNET_break_op (0);
+    json_decref (history);
+    return GNUNET_SYSERR;
+  }
+  json_decref (history);
+
+  /* check if melt operation was really too expensive given history */
+  if (GNUNET_OK !=
+      TALER_amount_add (&total,
+                        &total,
+                        &melt_value_with_fee))
+  {
+    /* clearly not OK if our transaction would have caused
+       the overflow... */
+    return GNUNET_OK;
+  }
+
+  if (0 >= TALER_amount_cmp (&total,
+                             &original_value))
+  {
+    /* transaction should have still fit */
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+
+  /* everything OK, valid proof of double-spending was provided */
+  return GNUNET_OK;
+}
+
+
+/**
+ * Function called when we're done processing the
+ * HTTP /refresh/melt request.
+ *
+ * @param cls the `struct TALER_EXCHANGE_RefreshMeltHandle`
+ * @param eh the curl request handle
+ */
+static void
+handle_refresh_melt_finished (void *cls,
+                              CURL *eh)
+{
+  struct TALER_EXCHANGE_RefreshMeltHandle *rmh = cls;
+  long response_code;
+  json_t *json;
+  uint16_t noreveal_index = TALER_CNC_KAPPA; /* invalid value */
+
+  rmh->job = NULL;
+  json = MAC_download_get_result (&rmh->db,
+                                  eh,
+                                  &response_code);
+  switch (response_code)
+  {
+  case 0:
+    break;
+  case MHD_HTTP_OK:
+    if (GNUNET_OK !=
+        verify_refresh_melt_signature_ok (rmh,
+                                          json,
+                                          &noreveal_index))
+    {
+      GNUNET_break_op (0);
+      response_code = 0;
+    }
+    if (NULL != rmh->melt_cb)
+    {
+      rmh->melt_cb (rmh->melt_cb_cls,
+                    response_code,
+                    noreveal_index,
+                    json);
+      rmh->melt_cb = NULL;
+    }
+    break;
+  case MHD_HTTP_BAD_REQUEST:
+    /* This should never happen, either us or the exchange is buggy
+       (or API version conflict); just pass JSON reply to the application */
+    break;
+  case MHD_HTTP_FORBIDDEN:
+    /* Double spending; check signatures on transaction history */
+    if (GNUNET_OK !=
+        verify_refresh_melt_signature_forbidden (rmh,
+                                                 json))
+    {
+      GNUNET_break_op (0);
+      response_code = 0;
+    }
+    break;
+  case MHD_HTTP_UNAUTHORIZED:
+    /* Nothing really to verify, exchange says one of the signatures is
+       invalid; assuming we checked them, this should never happen, we
+       should pass the JSON reply to the application */
+    break;
+  case MHD_HTTP_NOT_FOUND:
+    /* Nothing really to verify, this should never
+       happen, we should pass the JSON reply to the application */
+    break;
+  case MHD_HTTP_INTERNAL_SERVER_ERROR:
+    /* Server had an internal issue; we should retry, but this API
+       leaves this to the application */
+    break;
+  default:
+    /* unexpected response code */
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u\n",
+                response_code);
+    GNUNET_break (0);
+    response_code = 0;
+    break;
+  }
+  if (NULL != rmh->melt_cb)
+    rmh->melt_cb (rmh->melt_cb_cls,
+                  response_code,
+                  UINT16_MAX,
+                  json);
+  json_decref (json);
+  TALER_EXCHANGE_refresh_melt_cancel (rmh);
+}
+
+
+/**
+ * Convert a coin to be melted to the respective JSON encoding.
+ *
+ * @param melt_session_hash session hash to use
+ * @param mc coin to be melted
+ * @return JSON encoding of the melting request
+ */
+static json_t *
+melted_coin_to_json (const struct GNUNET_HashCode *melt_session_hash,
+                     const struct MeltedCoin *mc)
+{
+  struct TALER_CoinSpendSignatureP confirm_sig;
+  struct TALER_RefreshMeltCoinAffirmationPS melt;
+
+  melt.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_MELT);
+  melt.purpose.size = htonl (sizeof (struct TALER_RefreshMeltCoinAffirmationPS));
+  melt.session_hash = *melt_session_hash;
+  TALER_amount_hton (&melt.amount_with_fee,
+                     &mc->melt_amount_with_fee);
+  TALER_amount_hton (&melt.melt_fee,
+                     &mc->fee_melt);
+  GNUNET_CRYPTO_eddsa_key_get_public (&mc->coin_priv.eddsa_priv,
+                                      &melt.coin_pub.eddsa_pub);
+  GNUNET_CRYPTO_eddsa_sign (&mc->coin_priv.eddsa_priv,
+                            &melt.purpose,
+                            &confirm_sig.eddsa_signature);
+  return json_pack ("{s:o, s:o, s:o, s:o, s:o}",
+                    "coin_pub",
+                    TALER_json_from_data (&melt.coin_pub,
+                                          sizeof (melt.coin_pub)),
+                    "denom_pub",
+                    TALER_json_from_rsa_public_key (mc->pub_key.rsa_public_key),
+                    "denom_sig",
+                    TALER_json_from_rsa_signature (mc->sig.rsa_signature),
+                    "confirm_sig",
+                    TALER_json_from_data (&confirm_sig,
+                                          sizeof (confirm_sig)),
+                    "value_with_fee",
+                    TALER_json_from_amount (&mc->melt_amount_with_fee));
+}
+
+
+/**
+ * Submit a melt request to the exchange and get the exchange's
+ * response.
+ *
+ * This API is typically used by a wallet.  Note that to ensure that
+ * no money is lost in case of hardware failures, the provided
+ * argument should have been constructed using
+ * #TALER_EXCHANGE_refresh_prepare and committed to persistent storage
+ * prior to calling this function.
+ *
+ * @param exchange the exchange handle; the exchange must be ready to operate
+ * @param refresh_data_length size of the @a refresh_data (returned
+ *        in the `res_size` argument from #TALER_EXCHANGE_refresh_prepare())
+ * @param refresh_data the refresh data as returned from
+          #TALER_EXCHANGE_refresh_prepare())
+ * @param melt_cb the callback to call with the result
+ * @param melt_cb_cls closure for @a melt_cb
+ * @return a handle for this request; NULL if the argument was invalid.
+ *         In this case, neither callback will be called.
+ */
+struct TALER_EXCHANGE_RefreshMeltHandle *
+TALER_EXCHANGE_refresh_melt (struct TALER_EXCHANGE_Handle *exchange,
+                         size_t refresh_data_length,
+                         const char *refresh_data,
+                         TALER_EXCHANGE_RefreshMeltCallback melt_cb,
+                         void *melt_cb_cls)
+{
+  json_t *melt_obj;
+  json_t *new_denoms;
+  json_t *melt_coins;
+  json_t *coin_evs;
+  json_t *transfer_pubs;
+  json_t *secret_encs;
+  json_t *link_encs;
+  json_t *tmp;
+  struct TALER_EXCHANGE_RefreshMeltHandle *rmh;
+  CURL *eh;
+  struct TALER_EXCHANGE_Context *ctx;
+  struct MeltData *md;
+  unsigned int i;
+  unsigned int j;
+
+  if (GNUNET_YES !=
+      MAH_handle_is_ready (exchange))
+  {
+    GNUNET_break (0);
+    return NULL;
+  }
+  md = deserialize_melt_data (refresh_data,
+                              refresh_data_length);
+  if (NULL == md)
+  {
+    GNUNET_break (0);
+    return NULL;
+  }
+
+  /* build JSON request, each of the 6 arrays first */
+  new_denoms = json_array ();
+  melt_coins = json_array ();
+  coin_evs = json_array ();
+  transfer_pubs = json_array ();
+  secret_encs = json_array ();
+  link_encs = json_array ();
+  for (i=0;i<md->num_melted_coins;i++)
+  {
+    const struct MeltedCoin *mc = &md->melted_coins[i];
+
+    /* now melt_coins */
+    json_array_append (melt_coins,
+                       melted_coin_to_json (&md->melt_session_hash,
+                                            mc));
+  }
+
+  /* now transfer_pubs */
+  for (j=0;j<TALER_CNC_KAPPA;j++)
+  {
+    tmp = json_array ();
+    for (i=0;i<md->num_melted_coins;i++)
+    {
+      const struct MeltedCoin *mc = &md->melted_coins[i];
+      struct TALER_TransferPublicKeyP transfer_pub;
+
+      GNUNET_CRYPTO_ecdhe_key_get_public (&mc->transfer_priv[j].ecdhe_priv,
+                                          &transfer_pub.ecdhe_pub);
+      json_array_append (tmp,
+                         TALER_json_from_data (&transfer_pub,
+                                               sizeof (transfer_pub)));
+    }
+    json_array_append (transfer_pubs,
+                       tmp);
+  }
+
+  /* now secret_encs */
+  for (j=0;j<TALER_CNC_KAPPA;j++)
+  {
+    tmp = json_array ();
+    for (i=0;i<md->num_melted_coins;i++)
+    {
+      const struct MeltedCoin *mc = &md->melted_coins[i];
+      struct TALER_EncryptedLinkSecretP els;
+      struct TALER_TransferSecretP trans_sec;
+
+      TALER_link_derive_transfer_secret (&mc->coin_priv,
+                                         &mc->transfer_priv[j],
+                                         &trans_sec);
+      GNUNET_assert (GNUNET_OK ==
+                     TALER_transfer_encrypt (&md->link_secrets[j],
+                                             &trans_sec,
+                                             &els));
+      json_array_append (tmp,
+                         TALER_json_from_data (&els,
+                                               sizeof (els)));
+    }
+    json_array_append (secret_encs,
+                       tmp);
+  }
+
+  /* now new_denoms */
+  for (i=0;i<md->num_fresh_coins;i++)
+  {
+    json_array_append (new_denoms,
+                       TALER_json_from_rsa_public_key
+                       (md->fresh_pks[i].rsa_public_key));
+  }
+
+  /* now link_encs */
+  for (j=0;j<TALER_CNC_KAPPA;j++)
+  {
+    tmp = json_array ();
+    for (i=0;i<md->num_fresh_coins;i++)
+    {
+      const struct FreshCoin *fc = &md->fresh_coins[j][i];
+      struct TALER_RefreshLinkDecrypted rld;
+      struct TALER_RefreshLinkEncrypted *rle;
+      char *buf;
+      size_t buf_len;
+
+      rld.coin_priv = fc->coin_priv;
+      rld.blinding_key = fc->blinding_key;
+      rle = TALER_refresh_encrypt (&rld,
+                                   &md->link_secrets[j]);
+      GNUNET_assert (NULL != rle);
+      buf = TALER_refresh_link_encrypted_encode (rle,
+                                                 &buf_len);
+      GNUNET_assert (NULL != buf);
+      json_array_append (tmp,
+                         TALER_json_from_data (buf,
+                                               buf_len));
+      GNUNET_free (buf);
+      GNUNET_free (rle);
+    }
+    json_array_append (link_encs,
+                       tmp);
+  }
+
+  /* now coin_evs */
+  for (j=0;j<TALER_CNC_KAPPA;j++)
+  {
+    tmp = json_array ();
+    for (i=0;i<md->num_fresh_coins;i++)
+    {
+      const struct FreshCoin *fc = &md->fresh_coins[j][i];
+      struct TALER_CoinSpendPublicKeyP coin_pub;
+      struct GNUNET_HashCode coin_hash;
+      char *coin_ev; /* blinded message to be signed (in envelope) for each coin */
+      size_t coin_ev_size;
+
+      GNUNET_CRYPTO_eddsa_key_get_public (&fc->coin_priv.eddsa_priv,
+                                          &coin_pub.eddsa_pub);
+      GNUNET_CRYPTO_hash (&coin_pub.eddsa_pub,
+                          sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey),
+                          &coin_hash);
+      coin_ev_size = GNUNET_CRYPTO_rsa_blind (&coin_hash,
+                                              fc->blinding_key.rsa_blinding_key,
+                                              md->fresh_pks[i].rsa_public_key,
+                                              &coin_ev);
+      json_array_append (tmp,
+                         TALER_json_from_data (coin_ev,
+                                               coin_ev_size));
+      GNUNET_free (coin_ev);
+    }
+    json_array_append (coin_evs,
+                       tmp);
+  }
+
+  /* finally, assemble main JSON request from constitutent arrays */
+  melt_obj = json_pack ("{s:o, s:o, s:o, s:o, s:o, s:o}",
+                        "new_denoms", new_denoms,
+                        "melt_coins", melt_coins,
+                        "coin_evs", coin_evs,
+                        "transfer_pubs", transfer_pubs,
+                        "secret_encs", secret_encs,
+                        "link_encs", link_encs);
+
+  /* and now we can at last begin the actual request handling */
+  rmh = GNUNET_new (struct TALER_EXCHANGE_RefreshMeltHandle);
+  rmh->exchange = exchange;
+  rmh->melt_cb = melt_cb;
+  rmh->melt_cb_cls = melt_cb_cls;
+  rmh->md = md;
+  rmh->url = MAH_path_to_url (exchange,
+                              "/refresh/melt");
+
+  eh = curl_easy_init ();
+  GNUNET_assert (NULL != (rmh->json_enc =
+                          json_dumps (melt_obj,
+                                      JSON_COMPACT)));
+  json_decref (melt_obj);
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_URL,
+                                   rmh->url));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_POSTFIELDS,
+                                   rmh->json_enc));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_POSTFIELDSIZE,
+                                   strlen (rmh->json_enc)));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEFUNCTION,
+                                   &MAC_download_cb));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEDATA,
+                                   &rmh->db));
+  ctx = MAH_handle_to_context (exchange);
+  rmh->job = MAC_job_add (ctx,
+                          eh,
+                          GNUNET_YES,
+                          &handle_refresh_melt_finished,
+                          rmh);
+  return rmh;
+}
+
+
+/**
+ * Cancel a refresh execute request.  This function cannot be used
+ * on a request handle if either callback was already invoked.
+ *
+ * @param rmh the refresh melt handle
+ */
+void
+TALER_EXCHANGE_refresh_melt_cancel (struct TALER_EXCHANGE_RefreshMeltHandle *rmh)
+{
+  if (NULL != rmh->job)
+  {
+    MAC_job_cancel (rmh->job);
+    rmh->job = NULL;
+  }
+  GNUNET_free_non_null (rmh->db.buf);
+  free_melt_data (rmh->md); /* does not free 'md' itself */
+  GNUNET_free (rmh->md);
+  GNUNET_free (rmh->url);
+  GNUNET_free (rmh->json_enc);
+  GNUNET_free (rmh);
+}
+
+
+/* ********************* /refresh/reveal ***************************** */
+
+
+/**
+ * @brief A /refresh/reveal Handle
+ */
+struct TALER_EXCHANGE_RefreshRevealHandle
+{
+
+  /**
+   * The connection to exchange this request handle will use
+   */
+  struct TALER_EXCHANGE_Handle *exchange;
+
+  /**
+   * The url for this request.
+   */
+  char *url;
+
+  /**
+   * JSON encoding of the request to POST.
+   */
+  char *json_enc;
+
+  /**
+   * Handle for the request.
+   */
+  struct MAC_Job *job;
+
+  /**
+   * Function to call with the result.
+   */
+  TALER_EXCHANGE_RefreshRevealCallback reveal_cb;
+
+  /**
+   * Closure for @e reveal_cb.
+   */
+  void *reveal_cb_cls;
+
+  /**
+   * Download buffer
+   */
+  struct MAC_DownloadBuffer db;
+
+  /**
+   * Actual information about the melt operation.
+   */
+  struct MeltData *md;
+
+  /**
+   * The index selected by the exchange in cut-and-choose to not be revealed.
+   */
+  uint16_t noreveal_index;
+
+};
+
+
+/**
+ * We got a 200 OK response for the /refresh/reveal operation.
+ * Extract the coin signatures and return them to the caller.
+ * The signatures we get from the exchange is for the blinded value.
+ * Thus, we first must unblind them and then should verify their
+ * validity.
+ *
+ * If everything checks out, we return the unblinded signatures
+ * to the application via the callback.
+ *
+ * @param rrh operation handle
+ * @param json reply from the exchange
+ * @param[out] coin_privs array of length `num_fresh_coins`, initialized to contain private keys
+ * @param[out] sigs array of length `num_fresh_coins`, initialized to cointain RSA signatures
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on errors
+ */
+static int
+refresh_reveal_ok (struct TALER_EXCHANGE_RefreshRevealHandle *rrh,
+                   json_t *json,
+                   struct TALER_CoinSpendPrivateKeyP *coin_privs,
+                   struct TALER_DenominationSignature *sigs)
+{
+  unsigned int i;
+  json_t *jsona;
+  struct MAJ_Specification spec[] = {
+    MAJ_spec_json ("ev_sigs", &jsona),
+    MAJ_spec_end
+  };
+
+  if (GNUNET_OK !=
+      MAJ_parse_json (json,
+		      spec))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  if (! json_is_array (jsona))
+  {
+    /* We expected an array of coins */
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  if (rrh->md->num_fresh_coins != json_array_size (jsona))
+  {
+    /* Number of coins generated does not match our expectation */
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  for (i=0;i<rrh->md->num_fresh_coins;i++)
+  {
+    const struct FreshCoin *fc;
+    struct TALER_DenominationPublicKey *pk;
+    json_t *jsonai;
+    struct GNUNET_CRYPTO_rsa_Signature *blind_sig;
+    struct GNUNET_CRYPTO_rsa_Signature *sig;
+    struct TALER_CoinSpendPublicKeyP coin_pub;
+    struct GNUNET_HashCode coin_hash;
+
+    struct MAJ_Specification spec[] = {
+      MAJ_spec_rsa_signature ("ev_sig", &blind_sig),
+      MAJ_spec_end
+    };
+
+    fc = &rrh->md->fresh_coins[rrh->noreveal_index][i];
+    pk = &rrh->md->fresh_pks[i];
+    jsonai = json_array_get (jsona, i);
+    GNUNET_assert (NULL != jsonai);
+
+    if (GNUNET_OK !=
+        MAJ_parse_json (jsonai,
+                        spec))
+    {
+      GNUNET_break_op (0);
+      return GNUNET_SYSERR;
+    }
+
+    /* unblind the signature */
+    sig = GNUNET_CRYPTO_rsa_unblind (blind_sig,
+                                     fc->blinding_key.rsa_blinding_key,
+                                     pk->rsa_public_key);
+    GNUNET_CRYPTO_rsa_signature_free (blind_sig);
+
+    /* verify the signature */
+    GNUNET_CRYPTO_eddsa_key_get_public (&fc->coin_priv.eddsa_priv,
+                                        &coin_pub.eddsa_pub);
+    GNUNET_CRYPTO_hash (&coin_pub.eddsa_pub,
+                        sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey),
+                        &coin_hash);
+
+    if (GNUNET_OK !=
+        GNUNET_CRYPTO_rsa_verify (&coin_hash,
+                                  sig,
+                                  pk->rsa_public_key))
+    {
+      GNUNET_break_op (0);
+      GNUNET_CRYPTO_rsa_signature_free (sig);
+      return GNUNET_SYSERR;
+    }
+    coin_privs[i] = fc->coin_priv;
+    sigs[i].rsa_signature = sig;
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Function called when we're done processing the
+ * HTTP /refresh/reveal request.
+ *
+ * @param cls the `struct TALER_EXCHANGE_RefreshHandle`
+ * @param eh the curl request handle
+ */
+static void
+handle_refresh_reveal_finished (void *cls,
+                                CURL *eh)
+{
+  struct TALER_EXCHANGE_RefreshRevealHandle *rrh = cls;
+  long response_code;
+  json_t *json;
+
+  rrh->job = NULL;
+  json = MAC_download_get_result (&rrh->db,
+                                  eh,
+                                  &response_code);
+  switch (response_code)
+  {
+  case 0:
+    break;
+  case MHD_HTTP_OK:
+    {
+      struct TALER_CoinSpendPrivateKeyP coin_privs[rrh->md->num_fresh_coins];
+      struct TALER_DenominationSignature sigs[rrh->md->num_fresh_coins];
+      unsigned int i;
+      int ret;
+
+      memset (sigs, 0, sizeof (sigs));
+      ret = refresh_reveal_ok (rrh,
+                               json,
+                               coin_privs,
+                               sigs);
+      if (GNUNET_OK != ret)
+      {
+        response_code = 0;
+      }
+      else
+      {
+        rrh->reveal_cb (rrh->reveal_cb_cls,
+                        MHD_HTTP_OK,
+                        rrh->md->num_fresh_coins,
+                        coin_privs,
+                        sigs,
+                        json);
+        rrh->reveal_cb = NULL;
+      }
+      for (i=0;i<rrh->md->num_fresh_coins;i++)
+        if (NULL != sigs[i].rsa_signature)
+          GNUNET_CRYPTO_rsa_signature_free (sigs[i].rsa_signature);
+    }
+    break;
+  case MHD_HTTP_BAD_REQUEST:
+    /* This should never happen, either us or the exchange is buggy
+       (or API version conflict); just pass JSON reply to the application */
+    break;
+  case MHD_HTTP_CONFLICT:
+    /* Nothing really to verify, exchange says our reveal is inconsitent
+       with our commitment, so either side is buggy; we
+       should pass the JSON reply to the application */
+    break;
+  case MHD_HTTP_INTERNAL_SERVER_ERROR:
+    /* Server had an internal issue; we should retry, but this API
+       leaves this to the application */
+    break;
+  default:
+    /* unexpected response code */
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u\n",
+                response_code);
+    GNUNET_break (0);
+    response_code = 0;
+    break;
+  }
+  if (NULL != rrh->reveal_cb)
+    rrh->reveal_cb (rrh->reveal_cb_cls,
+                    response_code,
+                    0, NULL, NULL,
+                    json);
+  json_decref (json);
+  TALER_EXCHANGE_refresh_reveal_cancel (rrh);
+}
+
+
+/**
+ * Submit a /refresh/reval request to the exchange and get the exchange's
+ * response.
+ *
+ * This API is typically used by a wallet.  Note that to ensure that
+ * no money is lost in case of hardware failures, the provided
+ * arguments should have been committed to persistent storage
+ * prior to calling this function.
+ *
+ * @param exchange the exchange handle; the exchange must be ready to operate
+ * @param refresh_data_length size of the @a refresh_data (returned
+ *        in the `res_size` argument from #TALER_EXCHANGE_refresh_prepare())
+ * @param refresh_data the refresh data as returned from
+          #TALER_EXCHANGE_refresh_prepare())
+ * @param noreveal_index response from the exchange to the
+ *        #TALER_EXCHANGE_refresh_melt() invocation
+ * @param reveal_cb the callback to call with the final result of the
+ *        refresh operation
+ * @param reveal_cb_cls closure for the above callback
+ * @return a handle for this request; NULL if the argument was invalid.
+ *         In this case, neither callback will be called.
+ */
+struct TALER_EXCHANGE_RefreshRevealHandle *
+TALER_EXCHANGE_refresh_reveal (struct TALER_EXCHANGE_Handle *exchange,
+                           size_t refresh_data_length,
+                           const char *refresh_data,
+                           uint16_t noreveal_index,
+                           TALER_EXCHANGE_RefreshRevealCallback reveal_cb,
+                           void *reveal_cb_cls)
+{
+  struct TALER_EXCHANGE_RefreshRevealHandle *rrh;
+  json_t *transfer_privs;
+  json_t *reveal_obj;
+  json_t *tmp;
+  CURL *eh;
+  struct TALER_EXCHANGE_Context *ctx;
+  struct MeltData *md;
+  unsigned int i;
+  unsigned int j;
+
+  if (GNUNET_YES !=
+      MAH_handle_is_ready (exchange))
+  {
+    GNUNET_break (0);
+    return NULL;
+  }
+  md = deserialize_melt_data (refresh_data,
+                              refresh_data_length);
+  if (NULL == md)
+  {
+    GNUNET_break (0);
+    return NULL;
+  }
+  if (noreveal_index >= TALER_CNC_KAPPA)
+  {
+    /* We check this here, as it would be really bad to below just
+       disclose all the transfer keys. Note that this error should
+       have been caught way earlier when the exchange replied, but maybe
+       we had some internal corruption that changed the value... */
+    GNUNET_break (0);
+    return NULL;
+  }
+
+  /* build array of transfer private keys */
+  transfer_privs = json_array ();
+  for (j=0;j<TALER_CNC_KAPPA;j++)
+  {
+    if (j == noreveal_index)
+    {
+      /* This is crucial: exclude the transfer key for the
+	 noreval index! */
+      continue;
+    }
+    tmp = json_array ();
+    for (i=0;i<md->num_melted_coins;i++)
+    {
+      const struct MeltedCoin *mc = &md->melted_coins[i];
+
+      json_array_append (tmp,
+                         TALER_json_from_data (&mc->transfer_priv[j],
+                                               sizeof (struct TALER_TransferPrivateKeyP)));
+    }
+    json_array_append (transfer_privs,
+                       tmp);
+  }
+
+  /* build main JSON request */
+  reveal_obj = json_pack ("{s:o, s:o}",
+                          "session_hash",
+                          TALER_json_from_data (&md->melt_session_hash,
+                                                sizeof (struct GNUNET_HashCode)),
+                          "transfer_privs",
+                          transfer_privs);
+
+  /* finally, we can actually issue the request */
+  rrh = GNUNET_new (struct TALER_EXCHANGE_RefreshRevealHandle);
+  rrh->exchange = exchange;
+  rrh->noreveal_index = noreveal_index;
+  rrh->reveal_cb = reveal_cb;
+  rrh->reveal_cb_cls = reveal_cb_cls;
+  rrh->md = md;
+  rrh->url = MAH_path_to_url (rrh->exchange,
+                              "/refresh/reveal");
+
+  eh = curl_easy_init ();
+  GNUNET_assert (NULL != (rrh->json_enc =
+                          json_dumps (reveal_obj,
+                                      JSON_COMPACT)));
+  json_decref (reveal_obj);
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_URL,
+                                   rrh->url));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_POSTFIELDS,
+                                   rrh->json_enc));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_POSTFIELDSIZE,
+                                   strlen (rrh->json_enc)));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEFUNCTION,
+                                   &MAC_download_cb));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEDATA,
+                                   &rrh->db));
+  ctx = MAH_handle_to_context (rrh->exchange);
+  rrh->job = MAC_job_add (ctx,
+                          eh,
+                          GNUNET_YES,
+                          &handle_refresh_reveal_finished,
+                          rrh);
+  return rrh;
+}
+
+
+/**
+ * Cancel a refresh reveal request.  This function cannot be used
+ * on a request handle if the callback was already invoked.
+ *
+ * @param rrh the refresh reval handle
+ */
+void
+TALER_EXCHANGE_refresh_reveal_cancel (struct TALER_EXCHANGE_RefreshRevealHandle *rrh)
+{
+  if (NULL != rrh->job)
+  {
+    MAC_job_cancel (rrh->job);
+    rrh->job = NULL;
+  }
+  GNUNET_free_non_null (rrh->db.buf);
+  GNUNET_free (rrh->url);
+  GNUNET_free (rrh->json_enc);
+  free_melt_data (rrh->md); /* does not free 'md' itself */
+  GNUNET_free (rrh->md);
+  GNUNET_free (rrh);
+}
+
+
+/* end of exchange_api_refresh.c */
diff --git a/src/exchange-lib/exchange_api_refresh_link.c b/src/exchange-lib/exchange_api_refresh_link.c
new file mode 100644
index 000000000..9576916bc
--- /dev/null
+++ b/src/exchange-lib/exchange_api_refresh_link.c
@@ -0,0 +1,482 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2015, 2016 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see
+  <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange-lib/exchange_api_refresh_link.c
+ * @brief Implementation of the /refresh/link request of the exchange's HTTP API
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <curl/curl.h>
+#include <jansson.h>
+#include <microhttpd.h> /* just for HTTP status codes */
+#include <gnunet/gnunet_util_lib.h>
+#include "taler_exchange_service.h"
+#include "exchange_api_json.h"
+#include "exchange_api_context.h"
+#include "exchange_api_handle.h"
+#include "taler_signatures.h"
+
+
+/**
+ * @brief A /refresh/link Handle
+ */
+struct TALER_EXCHANGE_RefreshLinkHandle
+{
+
+  /**
+   * The connection to exchange this request handle will use
+   */
+  struct TALER_EXCHANGE_Handle *exchange;
+
+  /**
+   * The url for this request.
+   */
+  char *url;
+
+  /**
+   * Handle for the request.
+   */
+  struct MAC_Job *job;
+
+  /**
+   * Function to call with the result.
+   */
+  TALER_EXCHANGE_RefreshLinkCallback link_cb;
+
+  /**
+   * Closure for @e cb.
+   */
+  void *link_cb_cls;
+
+  /**
+   * Download buffer
+   */
+  struct MAC_DownloadBuffer db;
+
+  /**
+   * Private key of the coin, required to decode link information.
+   */
+  struct TALER_CoinSpendPrivateKeyP coin_priv;
+
+};
+
+
+/**
+ * Parse the provided linkage data from the "200 OK" response
+ * for one of the coins.
+ *
+ * @param rlh refresh link handle
+ * @param json json reply with the data for one coin
+ * @param trans_pub our transfer public key
+ * @param secret_enc encrypted key to decrypt link data
+ * @param[out] coin_priv where to return private coin key
+ * @param[out] sig where to return private coin signature
+ * @param[out] pub where to return the public key for the coin
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
+ */
+static int
+parse_refresh_link_coin (const struct TALER_EXCHANGE_RefreshLinkHandle *rlh,
+                         json_t *json,
+                         const struct TALER_TransferPublicKeyP *trans_pub,
+                         const struct TALER_EncryptedLinkSecretP *secret_enc,
+                         struct TALER_CoinSpendPrivateKeyP *coin_priv,
+                         struct TALER_DenominationSignature *sig,
+                         struct TALER_DenominationPublicKey *pub)
+{
+  void *link_enc;
+  size_t link_enc_size;
+  struct GNUNET_CRYPTO_rsa_Signature *bsig;
+  struct GNUNET_CRYPTO_rsa_PublicKey *rpub;
+  struct MAJ_Specification spec[] = {
+    MAJ_spec_varsize ("link_enc", &link_enc, &link_enc_size),
+    MAJ_spec_rsa_public_key ("denom_pub", &rpub),
+    MAJ_spec_rsa_signature ("ev_sig", &bsig),
+    MAJ_spec_end
+  };
+  struct TALER_RefreshLinkEncrypted *rle;
+  struct TALER_RefreshLinkDecrypted *rld;
+  struct TALER_LinkSecretP secret;
+
+  /* parse reply */
+  if (GNUNET_OK !=
+      MAJ_parse_json (json,
+                      spec))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+
+  /* decode and decrypt link data */
+  rle = TALER_refresh_link_encrypted_decode (link_enc,
+                                             link_enc_size);
+  if (NULL == rle)
+  {
+    GNUNET_break_op (0);
+    MAJ_parse_free (spec);
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_OK !=
+      TALER_link_decrypt_secret2 (secret_enc,
+                                  trans_pub,
+                                  &rlh->coin_priv,
+                                  &secret))
+  {
+    GNUNET_break_op (0);
+    MAJ_parse_free (spec);
+    return GNUNET_SYSERR;
+  }
+  rld = TALER_refresh_decrypt (rle,
+                               &secret);
+  if (NULL == rld)
+  {
+    GNUNET_break_op (0);
+    MAJ_parse_free (spec);
+    return GNUNET_SYSERR;
+  }
+
+  /* extract coin and signature */
+  *coin_priv = rld->coin_priv;
+  sig->rsa_signature
+    = GNUNET_CRYPTO_rsa_unblind (bsig,
+                                 rld->blinding_key.rsa_blinding_key,
+                                 rpub);
+
+  /* clean up */
+  GNUNET_free (rld);
+  pub->rsa_public_key = GNUNET_CRYPTO_rsa_public_key_dup (rpub);
+  MAJ_parse_free (spec);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Parse the provided linkage data from the "200 OK" response
+ * for one of the coins.
+ *
+ * @param[in,out] rlh refresh link handle (callback may be zero'ed out)
+ * @param json json reply with the data for one coin
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
+ */
+static int
+parse_refresh_link_ok (struct TALER_EXCHANGE_RefreshLinkHandle *rlh,
+                       json_t *json)
+{
+  unsigned int session;
+  unsigned int num_coins;
+  int ret;
+
+  if (! json_is_array (json))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  num_coins = 0;
+  /* Theoretically, a coin may have been melted repeatedly
+     into different sessions; so the response is an array
+     which contains information by melting session.  That
+     array contains another array.  However, our API returns
+     a single 1d array, so we flatten the 2d array that is
+     returned into a single array. Note that usually a coin
+     is melted at most once, and so we'll only run this
+     loop once for 'session=0' in most cases.
+
+     num_coins tracks the size of the 1d array we return,
+     whilst 'i' and 'session' track the 2d array. */
+  for (session=0;session<json_array_size (json); session++)
+  {
+    json_t *jsona;
+    struct MAJ_Specification spec[] = {
+      MAJ_spec_json ("new_coins", &jsona),
+      MAJ_spec_end
+    };
+
+    if (GNUNET_OK !=
+	MAJ_parse_json (json_array_get (json,
+					session),
+			spec))
+    {
+      GNUNET_break_op (0);
+      return GNUNET_SYSERR;
+    }
+    if (! json_is_array (jsona))
+    {
+      GNUNET_break_op (0);
+      MAJ_parse_free (spec);
+      return GNUNET_SYSERR;
+    }
+
+    /* count all coins over all sessions */
+    num_coins += json_array_size (jsona);
+    MAJ_parse_free (spec);
+  }
+  /* Now that we know how big the 1d array is, allocate
+     and fill it. */
+  {
+    unsigned int off_coin; /* index into 1d array */
+    unsigned int i;
+    struct TALER_CoinSpendPrivateKeyP coin_privs[num_coins];
+    struct TALER_DenominationSignature sigs[num_coins];
+    struct TALER_DenominationPublicKey pubs[num_coins];
+
+    memset (sigs, 0, sizeof (sigs));
+    memset (pubs, 0, sizeof (pubs));
+    off_coin = 0;
+    for (session=0;session<json_array_size (json); session++)
+    {
+      json_t *jsona;
+      struct TALER_TransferPublicKeyP trans_pub;
+      struct TALER_EncryptedLinkSecretP secret_enc;
+      struct MAJ_Specification spec[] = {
+	MAJ_spec_json ("new_coins", &jsona),
+	MAJ_spec_fixed_auto ("transfer_pub", &trans_pub),
+	MAJ_spec_fixed_auto ("secret_enc", &secret_enc),
+	MAJ_spec_end
+      };
+
+      if (GNUNET_OK !=
+	  MAJ_parse_json (json_array_get (json,
+					  session),
+			  spec))
+      {
+	GNUNET_break_op (0);
+	return GNUNET_SYSERR;
+      }
+      if (! json_is_array (jsona))
+      {
+	GNUNET_break_op (0);
+	MAJ_parse_free (spec);
+	return GNUNET_SYSERR;
+      }
+
+      /* decode all coins */
+      for (i=0;i<json_array_size (jsona);i++)
+      {
+	if (GNUNET_OK !=
+	    parse_refresh_link_coin (rlh,
+				     json_array_get (jsona,
+						     i),
+				     &trans_pub,
+				     &secret_enc,
+				     &coin_privs[i+off_coin],
+				     &sigs[i+off_coin],
+				     &pubs[i+off_coin]))
+	{
+	  GNUNET_break_op (0);
+	  break;
+	}
+      }
+      /* check if we really got all, then invoke callback */
+      off_coin += i;
+      if (i != json_array_size (jsona))
+      {
+	GNUNET_break_op (0);
+	ret = GNUNET_SYSERR;
+	MAJ_parse_free (spec);
+	break;
+      }
+      MAJ_parse_free (spec);
+    } /* end of for (session) */
+
+    if (off_coin == num_coins)
+    {
+      rlh->link_cb (rlh->link_cb_cls,
+		    MHD_HTTP_OK,
+		    num_coins,
+		    coin_privs,
+		    sigs,
+		    pubs,
+		    json);
+      rlh->link_cb = NULL;
+      ret = GNUNET_OK;
+    }
+    else
+    {
+      GNUNET_break_op (0);
+      ret = GNUNET_SYSERR;
+    }
+
+    /* clean up */
+    for (i=0;i<off_coin;i++)
+    {
+      if (NULL != sigs[i].rsa_signature)
+        GNUNET_CRYPTO_rsa_signature_free (sigs[i].rsa_signature);
+      if (NULL != pubs[i].rsa_public_key)
+        GNUNET_CRYPTO_rsa_public_key_free (pubs[i].rsa_public_key);
+    }
+  }
+  return ret;
+}
+
+
+/**
+ * Function called when we're done processing the
+ * HTTP /refresh/link request.
+ *
+ * @param cls the `struct TALER_EXCHANGE_RefreshLinkHandle`
+ * @param eh the curl request handle
+ */
+static void
+handle_refresh_link_finished (void *cls,
+                              CURL *eh)
+{
+  struct TALER_EXCHANGE_RefreshLinkHandle *rlh = cls;
+  long response_code;
+  json_t *json;
+
+  rlh->job = NULL;
+  json = MAC_download_get_result (&rlh->db,
+                                  eh,
+                                  &response_code);
+  switch (response_code)
+  {
+  case 0:
+    break;
+  case MHD_HTTP_OK:
+    if (GNUNET_OK !=
+        parse_refresh_link_ok (rlh,
+                               json))
+    {
+      GNUNET_break_op (0);
+      response_code = 0;
+    }
+    break;
+  case MHD_HTTP_BAD_REQUEST:
+    /* This should never happen, either us or the exchange is buggy
+       (or API version conflict); just pass JSON reply to the application */
+    break;
+  case MHD_HTTP_NOT_FOUND:
+    /* Nothing really to verify, exchange says this coin was not melted; we
+       should pass the JSON reply to the application */
+    break;
+  case MHD_HTTP_INTERNAL_SERVER_ERROR:
+    /* Server had an internal issue; we should retry, but this API
+       leaves this to the application */
+    break;
+  default:
+    /* unexpected response code */
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u\n",
+                response_code);
+    GNUNET_break (0);
+    response_code = 0;
+    break;
+  }
+  if (NULL != rlh->link_cb)
+    rlh->link_cb (rlh->link_cb_cls,
+                  response_code,
+                  0, NULL, NULL, NULL,
+                  json);
+  json_decref (json);
+  TALER_EXCHANGE_refresh_link_cancel (rlh);
+}
+
+
+/**
+ * Submit a link request to the exchange and get the exchange's response.
+ *
+ * This API is typically not used by anyone, it is more a threat
+ * against those trying to receive a funds transfer by abusing the
+ * /refresh protocol.
+ *
+ * @param exchange the exchange handle; the exchange must be ready to operate
+ * @param coin_priv private key to request link data for
+ * @param link_cb the callback to call with the useful result of the
+ *        refresh operation the @a coin_priv was involved in (if any)
+ * @param link_cb_cls closure for @a link_cb
+ * @return a handle for this request
+ */
+struct TALER_EXCHANGE_RefreshLinkHandle *
+TALER_EXCHANGE_refresh_link (struct TALER_EXCHANGE_Handle *exchange,
+                         const struct TALER_CoinSpendPrivateKeyP *coin_priv,
+                         TALER_EXCHANGE_RefreshLinkCallback link_cb,
+                         void *link_cb_cls)
+{
+  struct TALER_EXCHANGE_RefreshLinkHandle *rlh;
+  CURL *eh;
+  struct TALER_EXCHANGE_Context *ctx;
+  struct TALER_CoinSpendPublicKeyP coin_pub;
+  char *pub_str;
+  char *arg_str;
+
+  if (GNUNET_YES !=
+      MAH_handle_is_ready (exchange))
+  {
+    GNUNET_break (0);
+    return NULL;
+  }
+
+  GNUNET_CRYPTO_eddsa_key_get_public (&coin_priv->eddsa_priv,
+                                      &coin_pub.eddsa_pub);
+  pub_str = GNUNET_STRINGS_data_to_string_alloc (&coin_pub,
+                                                 sizeof (struct TALER_CoinSpendPublicKeyP));
+  GNUNET_asprintf (&arg_str,
+                   "/refresh/link?coin_pub=%s",
+                   pub_str);
+  GNUNET_free (pub_str);
+
+  rlh = GNUNET_new (struct TALER_EXCHANGE_RefreshLinkHandle);
+  rlh->exchange = exchange;
+  rlh->link_cb = link_cb;
+  rlh->link_cb_cls = link_cb_cls;
+  rlh->coin_priv = *coin_priv;
+  rlh->url = MAH_path_to_url (exchange, arg_str);
+  GNUNET_free (arg_str);
+
+  eh = curl_easy_init ();
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_URL,
+                                   rlh->url));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEFUNCTION,
+                                   &MAC_download_cb));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEDATA,
+                                   &rlh->db));
+  ctx = MAH_handle_to_context (exchange);
+  rlh->job = MAC_job_add (ctx,
+                          eh,
+                          GNUNET_YES,
+                          &handle_refresh_link_finished,
+                          rlh);
+  return rlh;
+}
+
+
+/**
+ * Cancel a refresh link request.  This function cannot be used
+ * on a request handle if the callback was already invoked.
+ *
+ * @param rlh the refresh link handle
+ */
+void
+TALER_EXCHANGE_refresh_link_cancel (struct TALER_EXCHANGE_RefreshLinkHandle *rlh)
+{
+  if (NULL != rlh->job)
+  {
+    MAC_job_cancel (rlh->job);
+    rlh->job = NULL;
+  }
+  GNUNET_free_non_null (rlh->db.buf);
+  GNUNET_free (rlh->url);
+  GNUNET_free (rlh);
+}
+
+
+/* end of exchange_api_refresh_link.c */
diff --git a/src/exchange-lib/exchange_api_reserve.c b/src/exchange-lib/exchange_api_reserve.c
new file mode 100644
index 000000000..e694b8d95
--- /dev/null
+++ b/src/exchange-lib/exchange_api_reserve.c
@@ -0,0 +1,930 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see
+  <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange-lib/exchange_api_reserve.c
+ * @brief Implementation of the /reserve requests of the exchange's HTTP API
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <curl/curl.h>
+#include <jansson.h>
+#include <microhttpd.h> /* just for HTTP status codes */
+#include <gnunet/gnunet_util_lib.h>
+#include "taler_exchange_service.h"
+#include "exchange_api_json.h"
+#include "exchange_api_context.h"
+#include "exchange_api_handle.h"
+#include "taler_signatures.h"
+
+
+/* ********************** /reserve/status ********************** */
+
+/**
+ * @brief A Withdraw Status Handle
+ */
+struct TALER_EXCHANGE_ReserveStatusHandle
+{
+
+  /**
+   * The connection to exchange this request handle will use
+   */
+  struct TALER_EXCHANGE_Handle *exchange;
+
+  /**
+   * The url for this request.
+   */
+  char *url;
+
+  /**
+   * Handle for the request.
+   */
+  struct MAC_Job *job;
+
+  /**
+   * Function to call with the result.
+   */
+  TALER_EXCHANGE_ReserveStatusResultCallback cb;
+
+  /**
+   * Public key of the reserve we are querying.
+   */
+  struct TALER_ReservePublicKeyP reserve_pub;
+
+  /**
+   * Closure for @a cb.
+   */
+  void *cb_cls;
+
+  /**
+   * Download buffer
+   */
+  struct MAC_DownloadBuffer db;
+
+};
+
+
+/**
+ * Parse history given in JSON format and return it in binary
+ * format.
+ *
+ * @param[in] history JSON array with the history
+ * @param reserve_pub public key of the reserve to inspect
+ * @param currency currency we expect the balance to be in
+ * @param[out] balance final balance
+ * @param history_length number of entries in @a history
+ * @param[out] rhistory array of length @a history_length, set to the
+ *             parsed history entries
+ * @return #GNUNET_OK if history was valid and @a rhistory and @a balance
+ *         were set,
+ *         #GNUNET_SYSERR if there was a protocol violation in @a history
+ */
+static int
+parse_reserve_history (json_t *history,
+                       const struct TALER_ReservePublicKeyP *reserve_pub,
+                       const char *currency,
+                       struct TALER_Amount *balance,
+                       unsigned int history_length,
+                       struct TALER_EXCHANGE_ReserveHistory *rhistory)
+{
+  struct GNUNET_HashCode uuid[history_length];
+  unsigned int uuid_off;
+  struct TALER_Amount total_in;
+  struct TALER_Amount total_out;
+  size_t off;
+
+  TALER_amount_get_zero (currency,
+                         &total_in);
+  TALER_amount_get_zero (currency,
+                         &total_out);
+  uuid_off = 0;
+  for (off=0;off<history_length;off++)
+  {
+    json_t *transaction;
+    struct TALER_Amount amount;
+    const char *type;
+    struct MAJ_Specification hist_spec[] = {
+      MAJ_spec_string ("type", &type),
+      MAJ_spec_amount ("amount",
+                       &amount),
+      /* 'wire' and 'signature' are optional depending on 'type'! */
+      MAJ_spec_end
+    };
+
+    transaction = json_array_get (history,
+                                  off);
+    if (GNUNET_OK !=
+        MAJ_parse_json (transaction,
+                        hist_spec))
+    {
+      GNUNET_break_op (0);
+      return GNUNET_SYSERR;
+    }
+    rhistory[off].amount = amount;
+
+    if (0 == strcasecmp (type,
+                         "DEPOSIT"))
+    {
+      json_t *wire;
+
+      rhistory[off].type = TALER_EXCHANGE_RTT_DEPOSIT;
+      if (GNUNET_OK !=
+          TALER_amount_add (&total_in,
+                            &total_in,
+                            &amount))
+      {
+        /* overflow in history already!? inconceivable! Bad exchange! */
+        GNUNET_break_op (0);
+        return GNUNET_SYSERR;
+      }
+      wire = json_object_get (transaction,
+                              "wire");
+      /* check 'wire' is a JSON object (no need to check wireformat,
+         but we do at least expect "some" JSON object here) */
+      if ( (NULL == wire) ||
+           (! json_is_object (wire)) )
+      {
+        /* not even a JSON 'wire' specification, not acceptable */
+        GNUNET_break_op (0);
+        return GNUNET_SYSERR;
+      }
+      rhistory[off].details.wire_in_details = wire;
+      /* end type==DEPOSIT */
+    }
+    else if (0 == strcasecmp (type,
+                              "WITHDRAW"))
+    {
+      struct TALER_ReserveSignatureP sig;
+      struct TALER_WithdrawRequestPS withdraw_purpose;
+      struct TALER_Amount amount_from_purpose;
+      struct MAJ_Specification withdraw_spec[] = {
+        MAJ_spec_fixed_auto ("signature",
+                             &sig),
+        MAJ_spec_fixed_auto ("details",
+                             &withdraw_purpose),
+        MAJ_spec_end
+      };
+      unsigned int i;
+
+      rhistory[off].type = TALER_EXCHANGE_RTT_WITHDRAWAL;
+      if (GNUNET_OK !=
+          MAJ_parse_json (transaction,
+                          withdraw_spec))
+      {
+        GNUNET_break_op (0);
+        return GNUNET_SYSERR;
+      }
+      /* Check that the signature is a valid withdraw request */
+      if (GNUNET_OK !=
+          GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_RESERVE_WITHDRAW,
+                                      &withdraw_purpose.purpose,
+                                      &sig.eddsa_signature,
+                                      &reserve_pub->eddsa_pub))
+      {
+        GNUNET_break_op (0);
+        MAJ_parse_free (withdraw_spec);
+        return GNUNET_SYSERR;
+      }
+      TALER_amount_ntoh (&amount_from_purpose,
+                         &withdraw_purpose.amount_with_fee);
+      if (0 != TALER_amount_cmp (&amount,
+                                 &amount_from_purpose))
+      {
+        GNUNET_break_op (0);
+        MAJ_parse_free (withdraw_spec);
+        return GNUNET_SYSERR;
+      }
+      rhistory[off].details.out_authorization_sig = json_object_get (transaction,
+                                                                     "signature");
+      /* Check check that the same withdraw transaction
+         isn't listed twice by the exchange. We use the
+         "uuid" array to remember the hashes of all
+         purposes, and compare the hashes to find
+         duplicates. */
+      GNUNET_CRYPTO_hash (&withdraw_purpose,
+                          ntohl (withdraw_purpose.purpose.size),
+                          &uuid[uuid_off]);
+      for (i=0;i<uuid_off;i++)
+      {
+        if (0 == memcmp (&uuid[uuid_off],
+                         &uuid[i],
+                         sizeof (struct GNUNET_HashCode)))
+        {
+          GNUNET_break_op (0);
+          MAJ_parse_free (withdraw_spec);
+          return GNUNET_SYSERR;
+        }
+      }
+      uuid_off++;
+
+      if (GNUNET_OK !=
+          TALER_amount_add (&total_out,
+                            &total_out,
+                            &amount))
+      {
+        /* overflow in history already!? inconceivable! Bad exchange! */
+        GNUNET_break_op (0);
+        MAJ_parse_free (withdraw_spec);
+        return GNUNET_SYSERR;
+      }
+      /* end type==WITHDRAW */
+    }
+    else
+    {
+      /* unexpected 'type', protocol incompatibility, complain! */
+      GNUNET_break_op (0);
+      return GNUNET_SYSERR;
+    }
+  }
+
+  /* check balance = total_in - total_out < withdraw-amount */
+  if (GNUNET_SYSERR ==
+      TALER_amount_subtract (balance,
+                             &total_in,
+                             &total_out))
+  {
+    /* total_in < total_out, why did the exchange ever allow this!? */
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+
+  return GNUNET_OK;
+}
+
+
+/**
+ * Function called when we're done processing the
+ * HTTP /reserve/status request.
+ *
+ * @param cls the `struct TALER_EXCHANGE_ReserveStatusHandle`
+ * @param eh curl handle of the request that finished
+ */
+static void
+handle_reserve_status_finished (void *cls,
+                                CURL *eh)
+{
+  struct TALER_EXCHANGE_ReserveStatusHandle *wsh = cls;
+  long response_code;
+  json_t *json;
+
+  wsh->job = NULL;
+  json = MAC_download_get_result (&wsh->db,
+                                  eh,
+                                  &response_code);
+  switch (response_code)
+  {
+  case 0:
+    break;
+  case MHD_HTTP_OK:
+    {
+      /* TODO: move into separate function... */
+      json_t *history;
+      unsigned int len;
+      struct TALER_Amount balance;
+      struct TALER_Amount balance_from_history;
+      struct MAJ_Specification spec[] = {
+        MAJ_spec_amount ("balance", &balance),
+        MAJ_spec_end
+      };
+
+      if (GNUNET_OK !=
+          MAJ_parse_json (json,
+                          spec))
+      {
+        GNUNET_break_op (0);
+        response_code = 0;
+        break;
+      }
+      history = json_object_get (json,
+                                 "history");
+      if (NULL == history)
+      {
+        GNUNET_break_op (0);
+        response_code = 0;
+        break;
+      }
+      len = json_array_size (history);
+      {
+        struct TALER_EXCHANGE_ReserveHistory rhistory[len];
+
+        if (GNUNET_OK !=
+            parse_reserve_history (history,
+                                   &wsh->reserve_pub,
+                                   balance.currency,
+                                   &balance_from_history,
+                                   len,
+                                   rhistory))
+        {
+          GNUNET_break_op (0);
+          response_code = 0;
+          break;
+        }
+        if (0 !=
+            TALER_amount_cmp (&balance_from_history,
+                              &balance))
+        {
+          /* exchange cannot add up balances!? */
+          GNUNET_break_op (0);
+          response_code = 0;
+          break;
+        }
+        wsh->cb (wsh->cb_cls,
+                 response_code,
+                 json,
+                 &balance,
+                 len,
+                 rhistory);
+        wsh->cb = NULL;
+      }
+    }
+    break;
+  case MHD_HTTP_BAD_REQUEST:
+    /* This should never happen, either us or the exchange is buggy
+       (or API version conflict); just pass JSON reply to the application */
+    break;
+  case MHD_HTTP_NOT_FOUND:
+    /* Nothing really to verify, this should never
+       happen, we should pass the JSON reply to the application */
+    break;
+  case MHD_HTTP_INTERNAL_SERVER_ERROR:
+    /* Server had an internal issue; we should retry, but this API
+       leaves this to the application */
+    break;
+  default:
+    /* unexpected response code */
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u\n",
+                response_code);
+    GNUNET_break (0);
+    response_code = 0;
+    break;
+  }
+  if (NULL != wsh->cb)
+    wsh->cb (wsh->cb_cls,
+             response_code,
+             json,
+             NULL,
+             0, NULL);
+  json_decref (json);
+  TALER_EXCHANGE_reserve_status_cancel (wsh);
+}
+
+
+/**
+ * Submit a request to obtain the transaction history of a reserve
+ * from the exchange.  Note that while we return the full response to the
+ * caller for further processing, we do already verify that the
+ * response is well-formed (i.e. that signatures included in the
+ * response are all valid and add up to the balance).  If the exchange's
+ * reply is not well-formed, we return an HTTP status code of zero to
+ * @a cb.
+ *
+ * @param exchange the exchange handle; the exchange must be ready to operate
+ * @param reserve_pub public key of the reserve to inspect
+ * @param cb the callback to call when a reply for this request is available
+ * @param cb_cls closure for the above callback
+ * @return a handle for this request; NULL if the inputs are invalid (i.e.
+ *         signatures fail to verify).  In this case, the callback is not called.
+ */
+struct TALER_EXCHANGE_ReserveStatusHandle *
+TALER_EXCHANGE_reserve_status (struct TALER_EXCHANGE_Handle *exchange,
+                           const struct TALER_ReservePublicKeyP *reserve_pub,
+                           TALER_EXCHANGE_ReserveStatusResultCallback cb,
+                           void *cb_cls)
+{
+  struct TALER_EXCHANGE_ReserveStatusHandle *wsh;
+  struct TALER_EXCHANGE_Context *ctx;
+  CURL *eh;
+  char *pub_str;
+  char *arg_str;
+
+  if (GNUNET_YES !=
+      MAH_handle_is_ready (exchange))
+  {
+    GNUNET_break (0);
+    return NULL;
+  }
+  pub_str = GNUNET_STRINGS_data_to_string_alloc (reserve_pub,
+                                                 sizeof (struct TALER_ReservePublicKeyP));
+  GNUNET_asprintf (&arg_str,
+                   "/reserve/status?reserve_pub=%s",
+                   pub_str);
+  GNUNET_free (pub_str);
+  wsh = GNUNET_new (struct TALER_EXCHANGE_ReserveStatusHandle);
+  wsh->exchange = exchange;
+  wsh->cb = cb;
+  wsh->cb_cls = cb_cls;
+  wsh->reserve_pub = *reserve_pub;
+  wsh->url = MAH_path_to_url (exchange,
+                              arg_str);
+  GNUNET_free (arg_str);
+
+  eh = curl_easy_init ();
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_URL,
+                                   wsh->url));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEFUNCTION,
+                                   &MAC_download_cb));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEDATA,
+                                   &wsh->db));
+  ctx = MAH_handle_to_context (exchange);
+  wsh->job = MAC_job_add (ctx,
+                          eh,
+                          GNUNET_NO,
+                          &handle_reserve_status_finished,
+                          wsh);
+  return wsh;
+}
+
+
+/**
+ * Cancel a withdraw status request.  This function cannot be used
+ * on a request handle if a response is already served for it.
+ *
+ * @param wsh the withdraw status request handle
+ */
+void
+TALER_EXCHANGE_reserve_status_cancel (struct TALER_EXCHANGE_ReserveStatusHandle *wsh)
+{
+  if (NULL != wsh->job)
+  {
+    MAC_job_cancel (wsh->job);
+    wsh->job = NULL;
+  }
+  GNUNET_free_non_null (wsh->db.buf);
+  GNUNET_free (wsh->url);
+  GNUNET_free (wsh);
+}
+
+
+/* ********************** /reserve/withdraw ********************** */
+
+/**
+ * @brief A Withdraw Sign Handle
+ */
+struct TALER_EXCHANGE_ReserveWithdrawHandle
+{
+
+  /**
+   * The connection to exchange this request handle will use
+   */
+  struct TALER_EXCHANGE_Handle *exchange;
+
+  /**
+   * The url for this request.
+   */
+  char *url;
+
+  /**
+   * JSON encoding of the request to POST.
+   */
+  char *json_enc;
+
+  /**
+   * Handle for the request.
+   */
+  struct MAC_Job *job;
+
+  /**
+   * Function to call with the result.
+   */
+  TALER_EXCHANGE_ReserveWithdrawResultCallback cb;
+
+  /**
+   * Key used to blind the value.
+   */
+  const struct TALER_DenominationBlindingKey *blinding_key;
+
+  /**
+   * Denomination key we are withdrawing.
+   */
+  const struct TALER_EXCHANGE_DenomPublicKey *pk;
+
+  /**
+   * Closure for @a cb.
+   */
+  void *cb_cls;
+
+  /**
+   * Download buffer
+   */
+  struct MAC_DownloadBuffer db;
+
+  /**
+   * Hash of the public key of the coin we are signing.
+   */
+  struct GNUNET_HashCode c_hash;
+
+  /**
+   * Public key of the reserve we are withdrawing from.
+   */
+  struct TALER_ReservePublicKeyP reserve_pub;
+
+};
+
+
+/**
+ * We got a 200 OK response for the /reserve/withdraw operation.
+ * Extract the coin's signature and return it to the caller.
+ * The signature we get from the exchange is for the blinded value.
+ * Thus, we first must unblind it and then should verify its
+ * validity against our coin's hash.
+ *
+ * If everything checks out, we return the unblinded signature
+ * to the application via the callback.
+ *
+ * @param wsh operation handle
+ * @param json reply from the exchange
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on errors
+ */
+static int
+reserve_withdraw_ok (struct TALER_EXCHANGE_ReserveWithdrawHandle *wsh,
+                  json_t *json)
+{
+  struct GNUNET_CRYPTO_rsa_Signature *blind_sig;
+  struct GNUNET_CRYPTO_rsa_Signature *sig;
+  struct TALER_DenominationSignature dsig;
+  struct MAJ_Specification spec[] = {
+    MAJ_spec_rsa_signature ("ev_sig", &blind_sig),
+    MAJ_spec_end
+  };
+
+  if (GNUNET_OK !=
+      MAJ_parse_json (json,
+                      spec))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  sig = GNUNET_CRYPTO_rsa_unblind (blind_sig,
+                                   wsh->blinding_key->rsa_blinding_key,
+                                   wsh->pk->key.rsa_public_key);
+  GNUNET_CRYPTO_rsa_signature_free (blind_sig);
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_rsa_verify (&wsh->c_hash,
+                                sig,
+                                wsh->pk->key.rsa_public_key))
+  {
+    GNUNET_break_op (0);
+    GNUNET_CRYPTO_rsa_signature_free (sig);
+    return GNUNET_SYSERR;
+  }
+  /* signature is valid, return it to the application */
+  dsig.rsa_signature = sig;
+  wsh->cb (wsh->cb_cls,
+           MHD_HTTP_OK,
+           &dsig,
+           json);
+  /* make sure callback isn't called again after return */
+  wsh->cb = NULL;
+  GNUNET_CRYPTO_rsa_signature_free (sig);
+  return GNUNET_OK;
+}
+
+
+/**
+ * We got a 402 PAYMENT REQUIRED response for the /reserve/withdraw operation.
+ * Check the signatures on the withdraw transactions in the provided
+ * history and that the balances add up.  We don't do anything directly
+ * with the information, as the JSON will be returned to the application.
+ * However, our job is ensuring that the exchange followed the protocol, and
+ * this in particular means checking all of the signatures in the history.
+ *
+ * @param wsh operation handle
+ * @param json reply from the exchange
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on errors
+ */
+static int
+reserve_withdraw_payment_required (struct TALER_EXCHANGE_ReserveWithdrawHandle *wsh,
+                                   json_t *json)
+{
+  struct TALER_Amount balance;
+  struct TALER_Amount balance_from_history;
+  struct TALER_Amount requested_amount;
+  json_t *history;
+  size_t len;
+  struct MAJ_Specification spec[] = {
+    MAJ_spec_amount ("balance", &balance),
+    MAJ_spec_end
+  };
+
+  if (GNUNET_OK !=
+      MAJ_parse_json (json,
+                      spec))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  history = json_object_get (json,
+                             "history");
+  if (NULL == history)
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+
+  /* go over transaction history and compute
+     total incoming and outgoing amounts */
+  len = json_array_size (history);
+  {
+    struct TALER_EXCHANGE_ReserveHistory rhistory[len];
+
+    if (GNUNET_OK !=
+        parse_reserve_history (history,
+                               &wsh->reserve_pub,
+                               balance.currency,
+                               &balance_from_history,
+                               len,
+                               rhistory))
+    {
+      GNUNET_break_op (0);
+      return GNUNET_SYSERR;
+    }
+  }
+
+  if (0 !=
+      TALER_amount_cmp (&balance_from_history,
+                        &balance))
+  {
+    /* exchange cannot add up balances!? */
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  /* Compute how much we expected to charge to the reserve */
+  if (GNUNET_OK !=
+      TALER_amount_add (&requested_amount,
+                        &wsh->pk->value,
+                        &wsh->pk->fee_withdraw))
+  {
+    /* Overflow here? Very strange, our CPU must be fried... */
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+  /* Check that funds were really insufficient */
+  if (0 >= TALER_amount_cmp (&requested_amount,
+                             &balance))
+  {
+    /* Requested amount is smaller or equal to reported balance,
+       so this should not have failed. */
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Function called when we're done processing the
+ * HTTP /reserve/withdraw request.
+ *
+ * @param cls the `struct TALER_EXCHANGE_ReserveWithdrawHandle`
+ * @param eh curl handle of the request that finished
+ */
+static void
+handle_reserve_withdraw_finished (void *cls,
+                                  CURL *eh)
+{
+  struct TALER_EXCHANGE_ReserveWithdrawHandle *wsh = cls;
+  long response_code;
+  json_t *json;
+
+  wsh->job = NULL;
+  json = MAC_download_get_result (&wsh->db,
+                                  eh,
+                                  &response_code);
+  switch (response_code)
+  {
+  case 0:
+    break;
+  case MHD_HTTP_OK:
+    if (GNUNET_OK !=
+        reserve_withdraw_ok (wsh,
+                          json))
+    {
+      GNUNET_break_op (0);
+      response_code = 0;
+    }
+    break;
+  case MHD_HTTP_BAD_REQUEST:
+    /* This should never happen, either us or the exchange is buggy
+       (or API version conflict); just pass JSON reply to the application */
+    break;
+  case MHD_HTTP_PAYMENT_REQUIRED:
+    /* The exchange says that the reserve has insufficient funds;
+       check the signatures in the history... */
+    if (GNUNET_OK !=
+        reserve_withdraw_payment_required (wsh,
+                                        json))
+    {
+      GNUNET_break_op (0);
+      response_code = 0;
+    }
+    break;
+  case MHD_HTTP_UNAUTHORIZED:
+    GNUNET_break (0);
+    /* Nothing really to verify, exchange says one of the signatures is
+       invalid; as we checked them, this should never happen, we
+       should pass the JSON reply to the application */
+    break;
+  case MHD_HTTP_NOT_FOUND:
+    /* Nothing really to verify, the exchange basically just says
+       that it doesn't know this reserve.  Can happen if we
+       query before the wire transfer went through.
+       We should simply pass the JSON reply to the application. */
+    break;
+  case MHD_HTTP_INTERNAL_SERVER_ERROR:
+    /* Server had an internal issue; we should retry, but this API
+       leaves this to the application */
+    break;
+  default:
+    /* unexpected response code */
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u\n",
+                response_code);
+    GNUNET_break (0);
+    response_code = 0;
+    break;
+  }
+  if (NULL != wsh->cb)
+    wsh->cb (wsh->cb_cls,
+             response_code,
+             NULL,
+             json);
+  json_decref (json);
+  TALER_EXCHANGE_reserve_withdraw_cancel (wsh);
+}
+
+
+/**
+ * Withdraw a coin from the exchange using a /reserve/withdraw request.  Note
+ * that to ensure that no money is lost in case of hardware failures,
+ * the caller must have committed (most of) the arguments to disk
+ * before calling, and be ready to repeat the request with the same
+ * arguments in case of failures.
+ *
+ * @param exchange the exchange handle; the exchange must be ready to operate
+ * @param pk kind of coin to create
+ * @param reserve_priv private key of the reserve to withdraw from
+ * @param coin_priv where to store the coin's private key,
+ *        caller must have committed this value to disk before the call (with @a pk)
+ * @param blinding_key where to store the coin's blinding key
+ *        caller must have committed this value to disk before the call (with @a pk)
+ * @param res_cb the callback to call when the final result for this request is available
+ * @param res_cb_cls closure for the above callback
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR
+ *         if the inputs are invalid (i.e. denomination key not with this exchange).
+ *         In this case, the callback is not called.
+ */
+struct TALER_EXCHANGE_ReserveWithdrawHandle *
+TALER_EXCHANGE_reserve_withdraw (struct TALER_EXCHANGE_Handle *exchange,
+                             const struct TALER_EXCHANGE_DenomPublicKey *pk,
+                             const struct TALER_ReservePrivateKeyP *reserve_priv,
+                             const struct TALER_CoinSpendPrivateKeyP *coin_priv,
+                             const struct TALER_DenominationBlindingKey *blinding_key,
+                             TALER_EXCHANGE_ReserveWithdrawResultCallback res_cb,
+                             void *res_cb_cls)
+{
+  struct TALER_EXCHANGE_ReserveWithdrawHandle *wsh;
+  struct TALER_WithdrawRequestPS req;
+  struct TALER_ReserveSignatureP reserve_sig;
+  struct TALER_CoinSpendPublicKeyP coin_pub;
+  struct TALER_EXCHANGE_Context *ctx;
+  struct TALER_Amount amount_with_fee;
+  char *coin_ev;
+  size_t coin_ev_size;
+  json_t *withdraw_obj;
+  CURL *eh;
+
+  wsh = GNUNET_new (struct TALER_EXCHANGE_ReserveWithdrawHandle);
+  wsh->exchange = exchange;
+  wsh->cb = res_cb;
+  wsh->cb_cls = res_cb_cls;
+  wsh->pk = pk;
+
+  GNUNET_CRYPTO_eddsa_key_get_public (&coin_priv->eddsa_priv,
+                                      &coin_pub.eddsa_pub);
+  GNUNET_CRYPTO_hash (&coin_pub.eddsa_pub,
+                      sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey),
+                      &wsh->c_hash);
+  coin_ev_size = GNUNET_CRYPTO_rsa_blind (&wsh->c_hash,
+                                          blinding_key->rsa_blinding_key,
+                                          pk->key.rsa_public_key,
+                                          &coin_ev);
+  GNUNET_CRYPTO_eddsa_key_get_public (&reserve_priv->eddsa_priv,
+                                      &wsh->reserve_pub.eddsa_pub);
+  req.purpose.size = htonl (sizeof (struct TALER_WithdrawRequestPS));
+  req.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_RESERVE_WITHDRAW);
+  req.reserve_pub = wsh->reserve_pub;
+  if (GNUNET_OK !=
+      TALER_amount_add (&amount_with_fee,
+                        &pk->fee_withdraw,
+                        &pk->value))
+  {
+    /* exchange gave us denomination keys that overflow like this!? */
+    GNUNET_break_op (0);
+    GNUNET_free (coin_ev);
+    GNUNET_free (wsh);
+    return NULL;
+  }
+  TALER_amount_hton (&req.amount_with_fee,
+                     &amount_with_fee);
+  TALER_amount_hton (&req.withdraw_fee,
+                     &pk->fee_withdraw);
+  GNUNET_CRYPTO_rsa_public_key_hash (pk->key.rsa_public_key,
+                                     &req.h_denomination_pub);
+  GNUNET_CRYPTO_hash (coin_ev,
+                      coin_ev_size,
+                      &req.h_coin_envelope);
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_CRYPTO_eddsa_sign (&reserve_priv->eddsa_priv,
+                                           &req.purpose,
+                                           &reserve_sig.eddsa_signature));
+  withdraw_obj = json_pack ("{s:o, s:o," /* denom_pub and coin_ev */
+                            " s:o, s:o}",/* reserve_pub and reserve_sig */
+                            "denom_pub", TALER_json_from_rsa_public_key (pk->key.rsa_public_key),
+                            "coin_ev", TALER_json_from_data (coin_ev,
+                                                             coin_ev_size),
+                            "reserve_pub", TALER_json_from_data (&wsh->reserve_pub,
+                                                                 sizeof (struct TALER_ReservePublicKeyP)),
+                            "reserve_sig", TALER_json_from_data (&reserve_sig,
+                                                                 sizeof (reserve_sig)));
+  GNUNET_free (coin_ev);
+
+  wsh->blinding_key = blinding_key;
+  wsh->url = MAH_path_to_url (exchange, "/reserve/withdraw");
+
+  eh = curl_easy_init ();
+  GNUNET_assert (NULL != (wsh->json_enc =
+                          json_dumps (withdraw_obj,
+                                      JSON_COMPACT)));
+  json_decref (withdraw_obj);
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_URL,
+                                   wsh->url));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_POSTFIELDS,
+                                   wsh->json_enc));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_POSTFIELDSIZE,
+                                   strlen (wsh->json_enc)));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEFUNCTION,
+                                   &MAC_download_cb));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEDATA,
+                                   &wsh->db));
+  ctx = MAH_handle_to_context (exchange);
+  wsh->job = MAC_job_add (ctx,
+                          eh,
+                          GNUNET_YES,
+                          &handle_reserve_withdraw_finished,
+                          wsh);
+  return wsh;
+}
+
+
+/**
+ * Cancel a withdraw status request.  This function cannot be used
+ * on a request handle if a response is already served for it.
+ *
+ * @param sign the withdraw sign request handle
+ */
+void
+TALER_EXCHANGE_reserve_withdraw_cancel (struct TALER_EXCHANGE_ReserveWithdrawHandle *sign)
+{
+  if (NULL != sign->job)
+  {
+    MAC_job_cancel (sign->job);
+    sign->job = NULL;
+  }
+  GNUNET_free_non_null (sign->db.buf);
+  GNUNET_free (sign->url);
+  GNUNET_free (sign->json_enc);
+  GNUNET_free (sign);
+}
+
+
+/* end of exchange_api_reserve.c */
diff --git a/src/exchange-lib/exchange_api_wire.c b/src/exchange-lib/exchange_api_wire.c
new file mode 100644
index 000000000..fd40230c7
--- /dev/null
+++ b/src/exchange-lib/exchange_api_wire.c
@@ -0,0 +1,620 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see
+  <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange-lib/exchange_api_wire.c
+ * @brief Implementation of the /wire request of the exchange's HTTP API
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <curl/curl.h>
+#include <jansson.h>
+#include <microhttpd.h> /* just for HTTP status codes */
+#include <gnunet/gnunet_util_lib.h>
+#include "taler_exchange_service.h"
+#include "exchange_api_common.h"
+#include "exchange_api_json.h"
+#include "exchange_api_context.h"
+#include "exchange_api_handle.h"
+#include "taler_signatures.h"
+
+
+/**
+ * @brief A Wire Handle
+ */
+struct TALER_EXCHANGE_WireHandle
+{
+
+  /**
+   * The connection to exchange this request handle will use
+   */
+  struct TALER_EXCHANGE_Handle *exchange;
+
+  /**
+   * The url for this request.
+   */
+  char *url;
+
+  /**
+   * Handle for the request.
+   */
+  struct MAC_Job *job;
+
+  /**
+   * Function to call with the result.
+   */
+  TALER_EXCHANGE_WireResultCallback cb;
+
+  /**
+   * Closure for @a cb.
+   */
+  void *cb_cls;
+
+  /**
+   * Download buffer
+   */
+  struct MAC_DownloadBuffer db;
+
+  /**
+   * Set to the "methods" JSON array returned by the
+   * /wire request.
+   */
+  json_t *methods;
+
+  /**
+   * Current iteration offset in the @e methods array.
+   */
+  unsigned int methods_off;
+
+};
+
+
+/**
+ * Verify that the signature on the "200 OK" response
+ * for /wire/sepa from the exchange is valid.
+ *
+ * @param wh wire handle
+ * @param json json reply with the signature
+ * @return #GNUNET_SYSERR if @a json is invalid,
+ *         #GNUNET_NO if the method is unknown,
+ *         #GNUNET_OK if the json is valid
+ */
+static int
+verify_wire_sepa_signature_ok (const struct TALER_EXCHANGE_WireHandle *wh,
+                               json_t *json)
+{
+  struct TALER_MasterSignatureP exchange_sig;
+  struct TALER_MasterWireSepaDetailsPS mp;
+  const char *receiver_name;
+  const char *iban;
+  const char *bic;
+  const struct TALER_EXCHANGE_Keys *key_state;
+  struct GNUNET_HashContext *hc;
+  struct MAJ_Specification spec[] = {
+    MAJ_spec_fixed_auto ("sig", &exchange_sig),
+    MAJ_spec_string ("receiver_name", &receiver_name),
+    MAJ_spec_string ("iban", &iban),
+    MAJ_spec_string ("bic", &bic),
+    MAJ_spec_end
+  };
+
+  if (GNUNET_OK !=
+      MAJ_parse_json (json,
+                      spec))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+
+  key_state = TALER_EXCHANGE_get_keys (wh->exchange);
+  mp.purpose.purpose = htonl (TALER_SIGNATURE_MASTER_SEPA_DETAILS);
+  mp.purpose.size = htonl (sizeof (struct TALER_MasterWireSepaDetailsPS));
+  hc = GNUNET_CRYPTO_hash_context_start ();
+  GNUNET_CRYPTO_hash_context_read (hc,
+                                   receiver_name,
+                                   strlen (receiver_name) + 1);
+  GNUNET_CRYPTO_hash_context_read (hc,
+                                   iban,
+                                   strlen (iban) + 1);
+  GNUNET_CRYPTO_hash_context_read (hc,
+                                   bic,
+                                   strlen (bic) + 1);
+  GNUNET_CRYPTO_hash_context_finish (hc,
+                                     &mp.h_sepa_details);
+
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MASTER_SEPA_DETAILS,
+                                  &mp.purpose,
+                                  &exchange_sig.eddsa_signature,
+                                  &key_state->master_pub.eddsa_pub))
+  {
+    GNUNET_break_op (0);
+    MAJ_parse_free (spec);
+    return GNUNET_SYSERR;
+  }
+  MAJ_parse_free (spec);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Verify that the signature on the "200 OK" response
+ * for /wire/METHOD from the exchange is valid.
+ *
+ * @param wh wire handle with key material
+ * @param method method to verify the reply for
+ * @param json json reply with the signature
+ * @return #GNUNET_SYSERR if @a json is invalid,
+ *         #GNUNET_NO if the method is unknown,
+ *         #GNUNET_OK if the json is valid
+ */
+static int
+verify_wire_method_signature_ok (const struct TALER_EXCHANGE_WireHandle *wh,
+                                 const char *method,
+                                 json_t *json)
+{
+  struct
+  {
+    /**
+     * Name fo the method.
+     */
+    const char *method;
+
+    /**
+     * Handler to invoke to verify signature.
+     *
+     * @param wh wire handle with key material
+     * @param json json reply with signature to verify
+     */
+    int (*handler)(const struct TALER_EXCHANGE_WireHandle *wh,
+                   json_t *json);
+  } handlers[] = {
+    { "sepa", &verify_wire_sepa_signature_ok },
+    { NULL, NULL }
+  };
+  unsigned int i;
+
+  for (i=0;NULL != handlers[i].method; i++)
+    if (0 == strcasecmp (handlers[i].method,
+                         method))
+      return handlers[i].handler (wh,
+                                  json);
+  GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+              "Wire transfer method `%s' not supported\n",
+              method);
+  return GNUNET_NO;
+}
+
+
+/**
+ * Perform the next /wire/method request or signal
+ * the end of the iteration.
+ *
+ * @param wh the wire handle
+ * @return a handle for this request
+ */
+static void
+request_wire_method (struct TALER_EXCHANGE_WireHandle *wh);
+
+
+/**
+ * Function called when we're done processing the
+ * HTTP /wire/METHOD request.
+ *
+ * @param cls the `struct TALER_EXCHANGE_WireHandle`
+ * @param eh the curl request handle
+ */
+static void
+handle_wire_method_finished (void *cls,
+                             CURL *eh)
+{
+  struct TALER_EXCHANGE_WireHandle *wh = cls;
+  long response_code;
+  json_t *json;
+
+  wh->job = NULL;
+  json = MAC_download_get_result (&wh->db,
+                                  eh,
+                                  &response_code);
+  switch (response_code)
+  {
+  case 0:
+    break;
+  case MHD_HTTP_OK:
+    {
+      const char *method;
+
+      method = json_string_value (json_array_get (wh->methods,
+                                                  wh->methods_off - 1));
+      if (GNUNET_OK !=
+          verify_wire_method_signature_ok (wh,
+                                           method,
+                                           json))
+      {
+        GNUNET_break_op (0);
+        response_code = 0;
+        break;
+      }
+      break;
+    }
+  case MHD_HTTP_FOUND:
+    /* /wire/test returns a 302 redirect, we should just give
+       this information back to the callback below */
+    break;
+  case MHD_HTTP_BAD_REQUEST:
+    /* This should never happen, either us or the exchange is buggy
+       (or API version conflict); just pass JSON reply to the application */
+    break;
+  case MHD_HTTP_NOT_FOUND:
+    /* Nothing really to verify, this should never
+       happen, we should pass the JSON reply to the application */
+    break;
+  case MHD_HTTP_INTERNAL_SERVER_ERROR:
+    /* Server had an internal issue; we should retry, but this API
+       leaves this to the application */
+    break;
+  default:
+    /* unexpected response code */
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u\n",
+                response_code);
+    GNUNET_break (0);
+    response_code = 0;
+    break;
+  }
+  if (0 == response_code)
+  {
+    /* signal end of iteration */
+    wh->cb (wh->cb_cls,
+            0,
+            NULL,
+            NULL);
+    json_decref (json);
+    TALER_EXCHANGE_wire_cancel (wh);
+    return;
+  }
+  /* pass on successful reply */
+  wh->cb (wh->cb_cls,
+          response_code,
+          json_string_value (json_array_get (wh->methods,
+                                             wh->methods_off-1)),
+          json);
+  /* trigger request for the next /wire/method */
+  request_wire_method (wh);
+}
+
+
+/**
+ * Perform the next /wire/method request or signal
+ * the end of the iteration.
+ *
+ * @param wh the wire handle
+ * @return a handle for this request
+ */
+static void
+request_wire_method (struct TALER_EXCHANGE_WireHandle *wh)
+{
+  struct TALER_EXCHANGE_Context *ctx;
+  CURL *eh;
+  char *path;
+
+  if (json_array_size (wh->methods) <= wh->methods_off)
+  {
+    /* we are done, signal end of iteration */
+    wh->cb (wh->cb_cls,
+            0,
+            NULL,
+            NULL);
+    TALER_EXCHANGE_wire_cancel (wh);
+    return;
+  }
+  GNUNET_free_non_null (wh->db.buf);
+  wh->db.buf = NULL;
+  wh->db.buf_size = 0;
+  wh->db.eno = 0;
+  GNUNET_free_non_null (wh->url);
+  GNUNET_asprintf (&path,
+                   "/wire/%s",
+                   json_string_value (json_array_get (wh->methods,
+                                                      wh->methods_off++)));
+  wh->url = MAH_path_to_url (wh->exchange,
+                             path);
+  GNUNET_free (path);
+
+  eh = curl_easy_init ();
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_URL,
+                                   wh->url));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEFUNCTION,
+                                   &MAC_download_cb));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEDATA,
+                                   &wh->db));
+  /* The default is 'disabled', but let's be sure */
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_FOLLOWLOCATION,
+                                   (long) 0));
+  ctx = MAH_handle_to_context (wh->exchange);
+  wh->job = MAC_job_add (ctx,
+                         eh,
+                         GNUNET_YES,
+                         &handle_wire_method_finished,
+                         wh);
+  TALER_EXCHANGE_perform (ctx);
+}
+
+
+/**
+ * Verify that the signature on the "200 OK" response
+ * for /wire from the exchange is valid.
+ *
+ * @param wh wire handle
+ * @param json json reply with the signature
+ * @return NULL if @a json is invalid, otherwise the
+ *         "methods" array (with an RC of 1)
+ */
+static json_t *
+verify_wire_signature_ok (const struct TALER_EXCHANGE_WireHandle *wh,
+                          json_t *json)
+{
+  struct TALER_ExchangeSignatureP exchange_sig;
+  struct TALER_ExchangePublicKeyP exchange_pub;
+  struct TALER_ExchangeWireSupportMethodsPS mp;
+  json_t *methods;
+  const struct TALER_EXCHANGE_Keys *key_state;
+  struct GNUNET_HashContext *hc;
+  struct MAJ_Specification spec[] = {
+    MAJ_spec_fixed_auto ("sig", &exchange_sig),
+    MAJ_spec_fixed_auto ("pub", &exchange_pub),
+    MAJ_spec_json ("methods", &methods),
+    MAJ_spec_end
+  };
+  unsigned int i;
+
+  if (GNUNET_OK !=
+      MAJ_parse_json (json,
+                      spec))
+  {
+    GNUNET_break_op (0);
+    return NULL;
+  }
+  if (! json_is_array (methods))
+  {
+    GNUNET_break_op (0);
+    MAJ_parse_free (spec);
+    return NULL;
+  }
+
+  key_state = TALER_EXCHANGE_get_keys (wh->exchange);
+  if (GNUNET_OK !=
+      TALER_EXCHANGE_test_signing_key (key_state,
+                                   &exchange_pub))
+  {
+    GNUNET_break_op (0);
+    return NULL;
+  }
+  hc = GNUNET_CRYPTO_hash_context_start ();
+  for (i=0;i<json_array_size (methods);i++)
+  {
+    const json_t *element = json_array_get (methods, i);
+    const char *method;
+
+    if (! json_is_string (element))
+    {
+      GNUNET_CRYPTO_hash_context_abort (hc);
+      GNUNET_break_op (0);
+      MAJ_parse_free (spec);
+      return NULL;
+    }
+    method = json_string_value (element);
+    GNUNET_CRYPTO_hash_context_read (hc,
+                                     method,
+                                     strlen (method) + 1);
+  }
+  mp.purpose.purpose = htonl (TALER_SIGNATURE_EXCHANGE_WIRE_TYPES);
+  mp.purpose.size = htonl (sizeof (struct TALER_ExchangeWireSupportMethodsPS));
+  GNUNET_CRYPTO_hash_context_finish (hc,
+                                     &mp.h_wire_types);
+
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_EXCHANGE_WIRE_TYPES,
+                                  &mp.purpose,
+                                  &exchange_sig.eddsa_signature,
+                                  &exchange_pub.eddsa_pub))
+  {
+    GNUNET_break_op (0);
+    MAJ_parse_free (spec);
+    return NULL;
+  }
+  return methods;
+}
+
+
+/**
+ * Function called when we're done processing the
+ * HTTP /wire request.
+ *
+ * @param cls the `struct TALER_EXCHANGE_WireHandle`
+ * @param eh the curl request handle
+ */
+static void
+handle_wire_finished (void *cls,
+                      CURL *eh)
+{
+  struct TALER_EXCHANGE_WireHandle *wh = cls;
+  long response_code;
+  json_t *json;
+
+  wh->job = NULL;
+  json = MAC_download_get_result (&wh->db,
+                                  eh,
+                                  &response_code);
+  switch (response_code)
+  {
+  case 0:
+    break;
+  case MHD_HTTP_OK:
+    {
+      json_t *methods;
+
+      if (NULL ==
+          (methods = verify_wire_signature_ok (wh,
+                                               json)))
+      {
+        GNUNET_break_op (0);
+        response_code = 0;
+        break;
+      }
+      wh->methods = methods;
+      request_wire_method (wh);
+      return;
+    }
+    break;
+  case MHD_HTTP_BAD_REQUEST:
+    /* This should never happen, either us or the exchange is buggy
+       (or API version conflict); just pass JSON reply to the application */
+    break;
+  case MHD_HTTP_NOT_FOUND:
+    /* Nothing really to verify, this should never
+       happen, we should pass the JSON reply to the application */
+    break;
+  case MHD_HTTP_INTERNAL_SERVER_ERROR:
+    /* Server had an internal issue; we should retry, but this API
+       leaves this to the application */
+    break;
+  default:
+    /* unexpected response code */
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u\n",
+                response_code);
+    GNUNET_break (0);
+    response_code = 0;
+    break;
+  }
+  if (0 != response_code)
+  {
+    /* pass on successful reply */
+    wh->cb (wh->cb_cls,
+            response_code,
+            NULL,
+            json);
+  }
+  /* signal end of iteration */
+  wh->cb (wh->cb_cls,
+          0,
+          NULL,
+          NULL);
+  if (NULL != json)
+    json_decref (json);
+  TALER_EXCHANGE_wire_cancel (wh);
+}
+
+
+/**
+ * Obtain information about a exchange's wire instructions.
+ * A exchange may provide wire instructions for creating
+ * a reserve.  The wire instructions also indicate
+ * which wire formats merchants may use with the exchange.
+ * This API is typically used by a wallet for wiring
+ * funds, and possibly by a merchant to determine
+ * supported wire formats.
+ *
+ * Note that while we return the (main) response verbatim to the
+ * caller for further processing, we do already verify that the
+ * response is well-formed (i.e. that signatures included in the
+ * response are all valid).  If the exchange's reply is not well-formed,
+ * we return an HTTP status code of zero to @a cb.
+ *
+ * @param exchange the exchange handle; the exchange must be ready to operate
+ * @param wire_cb the callback to call when a reply for this request is available
+ * @param wire_cb_cls closure for the above callback
+ * @return a handle for this request
+ */
+struct TALER_EXCHANGE_WireHandle *
+TALER_EXCHANGE_wire (struct TALER_EXCHANGE_Handle *exchange,
+                 TALER_EXCHANGE_WireResultCallback wire_cb,
+                 void *wire_cb_cls)
+{
+  struct TALER_EXCHANGE_WireHandle *wh;
+  struct TALER_EXCHANGE_Context *ctx;
+  CURL *eh;
+
+  if (GNUNET_YES !=
+      MAH_handle_is_ready (exchange))
+  {
+    GNUNET_break (0);
+    return NULL;
+  }
+  wh = GNUNET_new (struct TALER_EXCHANGE_WireHandle);
+  wh->exchange = exchange;
+  wh->cb = wire_cb;
+  wh->cb_cls = wire_cb_cls;
+  wh->url = MAH_path_to_url (exchange, "/wire");
+
+  eh = curl_easy_init ();
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_URL,
+                                   wh->url));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEFUNCTION,
+                                   &MAC_download_cb));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEDATA,
+                                   &wh->db));
+  ctx = MAH_handle_to_context (exchange);
+  wh->job = MAC_job_add (ctx,
+                         eh,
+                         GNUNET_YES,
+                         &handle_wire_finished,
+                         wh);
+  return wh;
+}
+
+
+/**
+ * Cancel a wire information request.  This function cannot be used
+ * on a request handle if a response is already served for it.
+ *
+ * @param wh the wire information request handle
+ */
+void
+TALER_EXCHANGE_wire_cancel (struct TALER_EXCHANGE_WireHandle *wh)
+{
+  if (NULL != wh->job)
+  {
+    MAC_job_cancel (wh->job);
+    wh->job = NULL;
+  }
+  if (NULL != wh->methods)
+  {
+    json_decref (wh->methods);
+    wh->methods = NULL;
+  }
+  GNUNET_free_non_null (wh->db.buf);
+  GNUNET_free (wh->url);
+  GNUNET_free (wh);
+}
+
+
+/* end of exchange_api_wire.c */
diff --git a/src/exchange-lib/exchange_api_wire_deposits.c b/src/exchange-lib/exchange_api_wire_deposits.c
new file mode 100644
index 000000000..281ae2097
--- /dev/null
+++ b/src/exchange-lib/exchange_api_wire_deposits.c
@@ -0,0 +1,284 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see
+  <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange-lib/exchange_api_wire_deposits.c
+ * @brief Implementation of the /wire/deposits request of the exchange's HTTP API
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <curl/curl.h>
+#include <jansson.h>
+#include <microhttpd.h> /* just for HTTP status codes */
+#include <gnunet/gnunet_util_lib.h>
+#include "taler_exchange_service.h"
+#include "exchange_api_common.h"
+#include "exchange_api_json.h"
+#include "exchange_api_context.h"
+#include "exchange_api_handle.h"
+#include "taler_signatures.h"
+
+
+/**
+ * @brief A /wire/deposits Handle
+ */
+struct TALER_EXCHANGE_WireDepositsHandle
+{
+
+  /**
+   * The connection to exchange this request handle will use
+   */
+  struct TALER_EXCHANGE_Handle *exchange;
+
+  /**
+   * The url for this request.
+   */
+  char *url;
+
+  /**
+   * Handle for the request.
+   */
+  struct MAC_Job *job;
+
+  /**
+   * Function to call with the result.
+   */
+  TALER_EXCHANGE_WireDepositsCallback cb;
+
+  /**
+   * Closure for @a cb.
+   */
+  void *cb_cls;
+
+  /**
+   * Download buffer
+   */
+  struct MAC_DownloadBuffer db;
+
+};
+
+
+/**
+ * Function called when we're done processing the
+ * HTTP /wire/deposits request.
+ *
+ * @param cls the `struct TALER_EXCHANGE_WireDepositsHandle`
+ * @param eh the curl request handle
+ */
+static void
+handle_wire_deposits_finished (void *cls,
+                               CURL *eh)
+{
+  struct TALER_EXCHANGE_WireDepositsHandle *wdh = cls;
+  long response_code;
+  json_t *json;
+
+  wdh->job = NULL;
+  json = MAC_download_get_result (&wdh->db,
+                                  eh,
+                                  &response_code);
+  switch (response_code)
+  {
+  case 0:
+    break;
+  case MHD_HTTP_OK:
+    {
+      json_t *details_j;
+      struct GNUNET_HashCode h_wire;
+      struct TALER_Amount total_amount;
+      struct TALER_MerchantPublicKeyP merchant_pub;
+      unsigned int num_details;
+      struct MAJ_Specification spec[] = {
+        MAJ_spec_fixed_auto ("H_wire", &h_wire),
+        MAJ_spec_fixed_auto ("merchant_pub", &merchant_pub),
+        MAJ_spec_amount ("total_amount", &total_amount),
+        MAJ_spec_json ("details", &details_j),
+        MAJ_spec_end
+      };
+
+      if (GNUNET_OK !=
+          MAJ_parse_json (json,
+                          spec))
+      {
+        GNUNET_break_op (0);
+        response_code = 0;
+        break;
+      }
+      num_details = json_array_size (details_j);
+      {
+        struct TALER_WireDepositDetails details[num_details];
+        unsigned int i;
+
+        for (i=0;i<num_details;i++)
+        {
+          struct TALER_WireDepositDetails *detail = &details[i];
+          struct json_t *detail_j = json_array_get (details_j, i);
+          struct MAJ_Specification spec_detail[] = {
+            MAJ_spec_fixed_auto ("H_contract", &detail->h_contract),
+            MAJ_spec_amount ("deposit_value", &detail->coin_value),
+            MAJ_spec_amount ("deposit_fee", &detail->coin_fee),
+            MAJ_spec_uint64 ("transaction_id", &detail->transaction_id),
+            MAJ_spec_fixed_auto ("coin_pub", &detail->coin_pub),
+            MAJ_spec_end
+          };
+
+          if (GNUNET_OK !=
+              MAJ_parse_json (detail_j,
+                              spec_detail))
+          {
+            GNUNET_break_op (0);
+            response_code = 0;
+            break;
+          }
+        }
+        if (0 == response_code)
+          break;
+        wdh->cb (wdh->cb_cls,
+                 response_code,
+                 json,
+                 &h_wire,
+                 &total_amount,
+                 num_details,
+                 details);
+        json_decref (json);
+        TALER_EXCHANGE_wire_deposits_cancel (wdh);
+        return;
+      }
+    }
+    break;
+  case MHD_HTTP_BAD_REQUEST:
+    /* This should never happen, either us or the exchange is buggy
+       (or API version conflict); just pass JSON reply to the application */
+    break;
+  case MHD_HTTP_UNAUTHORIZED:
+    /* Nothing really to verify, exchange says one of the signatures is
+       invalid; as we checked them, this should never happen, we
+       should pass the JSON reply to the application */
+    break;
+  case MHD_HTTP_NOT_FOUND:
+    /* Exchange does not know about transaction;
+       we should pass the reply to the application */
+    break;
+  case MHD_HTTP_INTERNAL_SERVER_ERROR:
+    /* Server had an internal issue; we should retry, but this API
+       leaves this to the application */
+    break;
+  default:
+    /* unexpected response code */
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u\n",
+                response_code);
+    GNUNET_break (0);
+    response_code = 0;
+    break;
+  }
+  wdh->cb (wdh->cb_cls,
+           response_code,
+           json,
+           NULL, NULL, 0, NULL);
+  json_decref (json);
+  TALER_EXCHANGE_wire_deposits_cancel (wdh);
+}
+
+
+/**
+ * Query the exchange about which transactions were combined
+ * to create a wire transfer.
+ *
+ * @param exchange exchange to query
+ * @param wtid raw wire transfer identifier to get information about
+ * @param cb callback to call
+ * @param cb_cls closure for @a cb
+ * @return handle to cancel operation
+ */
+struct TALER_EXCHANGE_WireDepositsHandle *
+TALER_EXCHANGE_wire_deposits (struct TALER_EXCHANGE_Handle *exchange,
+                          const struct TALER_WireTransferIdentifierRawP *wtid,
+                          TALER_EXCHANGE_WireDepositsCallback cb,
+                          void *cb_cls)
+{
+  struct TALER_EXCHANGE_WireDepositsHandle *wdh;
+  struct TALER_EXCHANGE_Context *ctx;
+  char *buf;
+  char *path;
+  CURL *eh;
+
+  if (GNUNET_YES !=
+      MAH_handle_is_ready (exchange))
+  {
+    GNUNET_break (0);
+    return NULL;
+  }
+
+  wdh = GNUNET_new (struct TALER_EXCHANGE_WireDepositsHandle);
+  wdh->exchange = exchange;
+  wdh->cb = cb;
+  wdh->cb_cls = cb_cls;
+
+  buf = GNUNET_STRINGS_data_to_string_alloc (wtid,
+                                             sizeof (struct TALER_WireTransferIdentifierRawP));
+  GNUNET_asprintf (&path,
+                   "/wire/deposits?wtid=%s",
+                   buf);
+  wdh->url = MAH_path_to_url (wdh->exchange,
+                              path);
+  GNUNET_free (buf);
+  GNUNET_free (path);
+
+  eh = curl_easy_init ();
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_URL,
+                                   wdh->url));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEFUNCTION,
+                                   &MAC_download_cb));
+  GNUNET_assert (CURLE_OK ==
+                 curl_easy_setopt (eh,
+                                   CURLOPT_WRITEDATA,
+                                   &wdh->db));
+  ctx = MAH_handle_to_context (exchange);
+  wdh->job = MAC_job_add (ctx,
+                          eh,
+                          GNUNET_YES,
+                          &handle_wire_deposits_finished,
+                          wdh);
+  return wdh;
+}
+
+
+/**
+ * Cancel wire deposits request.  This function cannot be used on a request
+ * handle if a response is already served for it.
+ *
+ * @param wdh the wire deposits request handle
+ */
+void
+TALER_EXCHANGE_wire_deposits_cancel (struct TALER_EXCHANGE_WireDepositsHandle *wdh)
+{
+  if (NULL != wdh->job)
+  {
+    MAC_job_cancel (wdh->job);
+    wdh->job = NULL;
+  }
+  GNUNET_free_non_null (wdh->db.buf);
+  GNUNET_free (wdh->url);
+  GNUNET_free (wdh);
+}
+
+
+/* end of exchange_api_wire_deposits.c */
diff --git a/src/exchange-lib/test-exchange-home/config/mint-common.conf b/src/exchange-lib/test-exchange-home/config/mint-common.conf
new file mode 100644
index 000000000..01dd6c896
--- /dev/null
+++ b/src/exchange-lib/test-exchange-home/config/mint-common.conf
@@ -0,0 +1,30 @@
+[exchange]
+# Currency supported by the exchange (can only be one)
+CURRENCY = EUR
+
+# Wire format supported by the exchange
+# We use 'test' for testing of the actual
+# coin operations, and 'sepa' to test SEPA-specific routines.
+WIREFORMAT = test sepa
+
+# HTTP port the exchange listens to
+PORT = 8081
+
+# Master public key used to sign the exchange's various keys
+MASTER_PUBLIC_KEY = 98NJW3CQHZQGQXTY3K85K531XKPAPAVV4Q5V8PYYRR00NJGZWNVG
+
+# How to access our database
+DB = postgres
+
+# Is this is a testcase, use transient DB actions?
+TESTRUN = YES
+
+[exchangedb-postgres]
+
+DB_CONN_STR = "postgres:///talercheck"
+
+[exchange-wire-sepa]
+SEPA_RESPONSE_FILE = "test-exchange-home/sepa.json"
+
+[exchange-wire-test]
+REDIRECT_URL = "http://www.taler.net/"
diff --git a/src/exchange-lib/test-exchange-home/config/mint-keyup.conf b/src/exchange-lib/test-exchange-home/config/mint-keyup.conf
new file mode 100644
index 000000000..4a80da7e9
--- /dev/null
+++ b/src/exchange-lib/test-exchange-home/config/mint-keyup.conf
@@ -0,0 +1,86 @@
+[exchange_keys]
+
+# how long is one signkey valid?
+signkey_duration = 4 weeks
+
+# how long are the signatures with the signkey valid?
+legal_duration = 2 years
+
+# how long do we generate denomination and signing keys
+# ahead of time?
+lookahead_sign = 32 weeks 1 day
+
+# how long do we provide to clients denomination and signing keys
+# ahead of time?
+lookahead_provide = 4 weeks 1 day
+
+
+# Coin definitions are detected because the section
+# name begins with "coin_".  The rest of the
+# name is free, but of course following the convention
+# of "coin_$CURRENCY[_$SUBUNIT]_$VALUE" make sense.
+[coin_eur_ct_1]
+value = EUR:0.01
+duration_overlap = 5 minutes
+duration_withdraw = 7 days
+duration_spend = 2 years
+duration_legal = 3 years
+fee_withdraw = EUR:0.00
+fee_deposit = EUR:0.00
+fee_refresh = EUR:0.01
+rsa_keysize = 1024
+
+[coin_eur_ct_10]
+value = EUR:0.10
+duration_overlap = 5 minutes
+duration_withdraw = 7 days
+duration_spend = 2 years
+duration_legal = 3 years
+fee_withdraw = EUR:0.01
+fee_deposit = EUR:0.01
+fee_refresh = EUR:0.03
+rsa_keysize = 1024
+
+[coin_eur_1]
+value = EUR:1
+duration_overlap = 5 minutes
+duration_withdraw = 7 days
+duration_spend = 2 years
+duration_legal = 3 years
+fee_withdraw = EUR:0.01
+fee_deposit = EUR:0.01
+fee_refresh = EUR:0.03
+rsa_keysize = 1024
+
+[coin_eur_5]
+value = EUR:5
+duration_overlap = 5 minutes
+duration_withdraw = 7 days
+duration_spend = 2 years
+duration_legal = 3 years
+fee_withdraw = EUR:0.01
+fee_deposit = EUR:0.01
+fee_refresh = EUR:0.03
+rsa_keysize = 1024
+
+[coin_eur_10]
+value = EUR:10
+duration_overlap = 5 minutes
+duration_withdraw = 7 days
+duration_spend = 2 years
+duration_legal = 3 years
+fee_withdraw = EUR:0.01
+fee_deposit = EUR:0.01
+fee_refresh = EUR:0.03
+rsa_keysize = 1024
+
+[coin_eur_1000]
+value = EUR:1000
+duration_overlap = 5 minutes
+duration_withdraw = 7 days
+duration_spend = 2 years
+duration_legal = 3 years
+fee_withdraw = EUR:0.01
+fee_deposit = EUR:0.01
+fee_refresh = EUR:0.03
+rsa_keysize = 2048
diff --git a/src/mint-lib/test-mint-home/master.priv b/src/exchange-lib/test-exchange-home/master.priv
index 394926938..394926938 100644
--- a/src/mint-lib/test-mint-home/master.priv
+++ b/src/exchange-lib/test-exchange-home/master.priv
diff --git a/src/mint-lib/test-mint-home/sepa.json b/src/exchange-lib/test-exchange-home/sepa.json
index 36d12f661..36d12f661 100644
--- a/src/mint-lib/test-mint-home/sepa.json
+++ b/src/exchange-lib/test-exchange-home/sepa.json
diff --git a/src/exchange-lib/test_exchange_api.c b/src/exchange-lib/test_exchange_api.c
new file mode 100644
index 000000000..a6da380df
--- /dev/null
+++ b/src/exchange-lib/test_exchange_api.c
@@ -0,0 +1,2599 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange/test_exchange_api.c
+ * @brief testcase to test exchange's HTTP API interface
+ * @author Sree Harsha Totakura <sreeharsha@totakura.in>
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_util.h"
+#include "taler_signatures.h"
+#include "taler_exchange_service.h"
+#include <gnunet/gnunet_util_lib.h>
+#include <microhttpd.h>
+
+/**
+ * Is the configuration file is set to include wire format 'test'?
+ */
+#define WIRE_TEST 1
+
+/**
+ * Is the configuration file is set to include wire format 'sepa'?
+ */
+#define WIRE_SEPA 1
+
+/**
+ * Main execution context for the main loop.
+ */
+static struct TALER_EXCHANGE_Context *ctx;
+
+/**
+ * Handle to access the exchange.
+ */
+static struct TALER_EXCHANGE_Handle *exchange;
+
+/**
+ * Task run on shutdown.
+ */
+static struct GNUNET_SCHEDULER_Task *shutdown_task;
+
+/**
+ * Task that runs the main event loop.
+ */
+static struct GNUNET_SCHEDULER_Task *ctx_task;
+
+/**
+ * Result of the testcases, #GNUNET_OK on success
+ */
+static int result;
+
+
+/**
+ * Opcodes for the interpreter.
+ */
+enum OpCode
+{
+  /**
+   * Termination code, stops the interpreter loop (with success).
+   */
+  OC_END = 0,
+
+  /**
+   * Add funds to a reserve by (faking) incoming wire transfer.
+   */
+  OC_ADMIN_ADD_INCOMING,
+
+  /**
+   * Check status of a reserve.
+   */
+  OC_WITHDRAW_STATUS,
+
+  /**
+   * Withdraw a coin from a reserve.
+   */
+  OC_WITHDRAW_SIGN,
+
+  /**
+   * Deposit a coin (pay with it).
+   */
+  OC_DEPOSIT,
+
+  /**
+   * Melt a (set of) coins.
+   */
+  OC_REFRESH_MELT,
+
+  /**
+   * Complete melting session by withdrawing melted coins.
+   */
+  OC_REFRESH_REVEAL,
+
+  /**
+   * Verify exchange's /refresh/link by linking original private key to
+   * results from #OC_REFRESH_REVEAL step.
+   */
+  OC_REFRESH_LINK,
+
+  /**
+   * Verify the exchange's /wire-method.
+   */
+  OC_WIRE,
+
+  /**
+   * Verify exchange's /wire/deposits method.
+   */
+  OC_WIRE_DEPOSITS,
+
+  /**
+   * Verify exchange's /deposit/wtid method.
+   */
+  OC_DEPOSIT_WTID
+
+};
+
+
+/**
+ * Structure specifying details about a coin to be melted.
+ * Used in a NULL-terminated array as part of command
+ * specification.
+ */
+struct MeltDetails
+{
+
+  /**
+   * Amount to melt (including fee).
+   */
+  const char *amount;
+
+  /**
+   * Reference to reserve_withdraw operations for coin to
+   * be used for the /refresh/melt operation.
+   */
+  const char *coin_ref;
+
+};
+
+
+/**
+ * Information about a fresh coin generated by the refresh operation.
+ */
+struct FreshCoin
+{
+
+  /**
+   * If @e amount is NULL, this specifies the denomination key to
+   * use.  Otherwise, this will be set (by the interpreter) to the
+   * denomination PK matching @e amount.
+   */
+  const struct TALER_EXCHANGE_DenomPublicKey *pk;
+
+  /**
+   * Set (by the interpreter) to the exchange's signature over the
+   * coin's public key.
+   */
+  struct TALER_DenominationSignature sig;
+
+  /**
+   * Set (by the interpreter) to the coin's private key.
+   */
+  struct TALER_CoinSpendPrivateKeyP coin_priv;
+
+};
+
+
+/**
+ * Details for a exchange operation to execute.
+ */
+struct Command
+{
+  /**
+   * Opcode of the command.
+   */
+  enum OpCode oc;
+
+  /**
+   * Label for the command, can be NULL.
+   */
+  const char *label;
+
+  /**
+   * Which response code do we expect for this command?
+   */
+  unsigned int expected_response_code;
+
+  /**
+   * Details about the command.
+   */
+  union
+  {
+
+    /**
+     * Information for a #OC_ADMIN_ADD_INCOMING command.
+     */
+    struct
+    {
+
+      /**
+       * Label to another admin_add_incoming command if we
+       * should deposit into an existing reserve, NULL if
+       * a fresh reserve should be created.
+       */
+      const char *reserve_reference;
+
+      /**
+       * String describing the amount to add to the reserve.
+       */
+      const char *amount;
+
+      /**
+       * Wire details (JSON).
+       */
+      const char *wire;
+
+      /**
+       * Set (by the interpreter) to the reserve's private key
+       * we used to fill the reserve.
+       */
+      struct TALER_ReservePrivateKeyP reserve_priv;
+
+      /**
+       * Set to the API's handle during the operation.
+       */
+      struct TALER_EXCHANGE_AdminAddIncomingHandle *aih;
+
+    } admin_add_incoming;
+
+    /**
+     * Information for a #OC_WITHDRAW_STATUS command.
+     */
+    struct
+    {
+
+      /**
+       * Label to the #OC_ADMIN_ADD_INCOMING command which
+       * created the reserve.
+       */
+      const char *reserve_reference;
+
+      /**
+       * Set to the API's handle during the operation.
+       */
+      struct TALER_EXCHANGE_ReserveStatusHandle *wsh;
+
+      /**
+       * Expected reserve balance.
+       */
+      const char *expected_balance;
+
+    } reserve_status;
+
+    /**
+     * Information for a #OC_WITHDRAW_SIGN command.
+     */
+    struct
+    {
+
+      /**
+       * Which reserve should we withdraw from?
+       */
+      const char *reserve_reference;
+
+      /**
+       * String describing the denomination value we should withdraw.
+       * A corresponding denomination key must exist in the exchange's
+       * offerings.  Can be NULL if @e pk is set instead.
+       */
+      const char *amount;
+
+      /**
+       * If @e amount is NULL, this specifies the denomination key to
+       * use.  Otherwise, this will be set (by the interpreter) to the
+       * denomination PK matching @e amount.
+       */
+      const struct TALER_EXCHANGE_DenomPublicKey *pk;
+
+      /**
+       * Set (by the interpreter) to the exchange's signature over the
+       * coin's public key.
+       */
+      struct TALER_DenominationSignature sig;
+
+      /**
+       * Set (by the interpreter) to the coin's private key.
+       */
+      struct TALER_CoinSpendPrivateKeyP coin_priv;
+
+      /**
+       * Blinding key used for the operation.
+       */
+      struct TALER_DenominationBlindingKey blinding_key;
+
+      /**
+       * Withdraw handle (while operation is running).
+       */
+      struct TALER_EXCHANGE_ReserveWithdrawHandle *wsh;
+
+    } reserve_withdraw;
+
+    /**
+     * Information for a #OC_DEPOSIT command.
+     */
+    struct
+    {
+
+      /**
+       * Amount to deposit.
+       */
+      const char *amount;
+
+      /**
+       * Reference to a reserve_withdraw operation for a coin to
+       * be used for the /deposit operation.
+       */
+      const char *coin_ref;
+
+      /**
+       * If this @e coin_ref refers to an operation that generated
+       * an array of coins, this value determines which coin to use.
+       */
+      unsigned int coin_idx;
+
+      /**
+       * JSON string describing the merchant's "wire details".
+       */
+      const char *wire_details;
+
+      /**
+       * JSON string describing the contract between the two parties.
+       */
+      const char *contract;
+
+      /**
+       * Transaction ID to use.
+       */
+      uint64_t transaction_id;
+
+      /**
+       * Relative time (to add to 'now') to compute the refund deadline.
+       * Zero for no refunds.
+       */
+      struct GNUNET_TIME_Relative refund_deadline;
+
+      /**
+       * Set (by the interpreter) to a fresh private key of the merchant,
+       * if @e refund_deadline is non-zero.
+       */
+      struct TALER_MerchantPrivateKeyP merchant_priv;
+
+      /**
+       * Deposit handle while operation is running.
+       */
+      struct TALER_EXCHANGE_DepositHandle *dh;
+
+    } deposit;
+
+    /**
+     * Information for a #OC_REFRESH_MELT command.
+     */
+    struct
+    {
+
+      /**
+       * Information about coins to be melted.
+       */
+      struct MeltDetails *melted_coins;
+
+      /**
+       * Denominations of the fresh coins to withdraw.
+       */
+      const char **fresh_amounts;
+
+      /**
+       * Array of the public keys corresponding to
+       * the @e fresh_amounts, set by the interpreter.
+       */
+      const struct TALER_EXCHANGE_DenomPublicKey **fresh_pks;
+
+      /**
+       * Melt handle while operation is running.
+       */
+      struct TALER_EXCHANGE_RefreshMeltHandle *rmh;
+
+      /**
+       * Data used in the refresh operation, set by the interpreter.
+       */
+      char *refresh_data;
+
+      /**
+       * Number of bytes in @e refresh_data, set by the interpreter.
+       */
+      size_t refresh_data_length;
+
+      /**
+       * Set by the interpreter (upon completion) to the noreveal
+       * index selected by the exchange.
+       */
+      uint16_t noreveal_index;
+
+    } refresh_melt;
+
+    /**
+     * Information for a #OC_REFRESH_REVEAL command.
+     */
+    struct
+    {
+
+      /**
+       * Melt operation this is the matching reveal for.
+       */
+      const char *melt_ref;
+
+      /**
+       * Reveal handle while operation is running.
+       */
+      struct TALER_EXCHANGE_RefreshRevealHandle *rrh;
+
+      /**
+       * Number of fresh coins withdrawn, set by the interpreter.
+       * Length of the @e fresh_coins array.
+       */
+      unsigned int num_fresh_coins;
+
+      /**
+       * Information about coins withdrawn, set by the interpreter.
+       */
+      struct FreshCoin *fresh_coins;
+
+    } refresh_reveal;
+
+    /**
+     * Information for a #OC_REFRESH_LINK command.
+     */
+    struct
+    {
+
+      /**
+       * Reveal operation this is the matching link for.
+       */
+      const char *reveal_ref;
+
+      /**
+       * Link handle while operation is running.
+       */
+      struct TALER_EXCHANGE_RefreshLinkHandle *rlh;
+
+      /**
+       * Which of the melted coins should be used for the linkage?
+       */
+      unsigned int coin_idx;
+
+    } refresh_link;
+
+    /**
+     * Information for the /wire command.
+     */
+    struct {
+
+      /**
+       * Handle to the wire request.
+       */
+      struct TALER_EXCHANGE_WireHandle *wh;
+
+      /**
+       * Format we expect to see, others will be *ignored*.
+       */
+      const char *format;
+
+    } wire;
+
+    /**
+     * Information for the /wire/deposits's command.
+     */
+    struct {
+
+      /**
+       * Handle to the wire deposits request.
+       */
+      struct TALER_EXCHANGE_WireDepositsHandle *wdh;
+
+      /**
+       * Reference to a /deposit/wtid command. If set, we use the
+       * WTID from that command.
+       */
+      const char *wtid_ref;
+
+      /**
+       * WTID to use (used if @e wtid_ref is NULL).
+       */
+      struct TALER_WireTransferIdentifierRawP wtid;
+
+      /* TODO: may want to add list of deposits we expected
+         to see aggregated here in the future. */
+
+    } wire_deposits;
+
+    /**
+     * Information for the /deposit/wtid command.
+     */
+    struct {
+
+      /**
+       * Handle to the deposit wtid request.
+       */
+      struct TALER_EXCHANGE_DepositWtidHandle *dwh;
+
+      /**
+       * Which /deposit operation should we obtain WTID data for?
+       */
+      const char *deposit_ref;
+
+      /**
+       * What is the expected total amount? Only used if
+       * @e expected_response_code was #MHD_HTTP_OK.
+       */
+      struct TALER_Amount total_amount_expected;
+
+      /**
+       * Wire transfer identifier, set if #MHD_HTTP_OK was the response code.
+       */
+      struct TALER_WireTransferIdentifierRawP wtid;
+
+    } deposit_wtid;
+
+  } details;
+
+};
+
+
+/**
+ * State of the interpreter loop.
+ */
+struct InterpreterState
+{
+  /**
+   * Keys from the exchange.
+   */
+  const struct TALER_EXCHANGE_Keys *keys;
+
+  /**
+   * Commands the interpreter will run.
+   */
+  struct Command *commands;
+
+  /**
+   * Interpreter task (if one is scheduled).
+   */
+  struct GNUNET_SCHEDULER_Task *task;
+
+  /**
+   * Instruction pointer.  Tells #interpreter_run() which
+   * instruction to run next.
+   */
+  unsigned int ip;
+
+};
+
+
+/**
+ * Task that runs the context's event loop with the GNUnet scheduler.
+ *
+ * @param cls unused
+ * @param tc scheduler context (unused)
+ */
+static void
+context_task (void *cls,
+              const struct GNUNET_SCHEDULER_TaskContext *tc);
+
+
+/**
+ * Run the context task, the working set has changed.
+ */
+static void
+trigger_context_task ()
+{
+  GNUNET_SCHEDULER_cancel (ctx_task);
+  ctx_task = GNUNET_SCHEDULER_add_now (&context_task,
+                                       NULL);
+}
+
+
+/**
+ * The testcase failed, return with an error code.
+ *
+ * @param is interpreter state to clean up
+ */
+static void
+fail (struct InterpreterState *is)
+{
+  result = GNUNET_SYSERR;
+  GNUNET_SCHEDULER_shutdown ();
+}
+
+
+/**
+ * Find a command by label.
+ *
+ * @param is interpreter state to search
+ * @param label label to look for
+ * @return NULL if command was not found
+ */
+static const struct Command *
+find_command (const struct InterpreterState *is,
+              const char *label)
+{
+  unsigned int i;
+  const struct Command *cmd;
+
+  if (NULL == label)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                "Attempt to lookup command for empty label\n");
+    return NULL;
+  }
+  for (i=0;OC_END != (cmd = &is->commands[i])->oc;i++)
+    if ( (NULL != cmd->label) &&
+         (0 == strcmp (cmd->label,
+                       label)) )
+      return cmd;
+  GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+              "Command not found: %s\n",
+              label);
+  return NULL;
+}
+
+
+/**
+ * Run the main interpreter loop that performs exchange operations.
+ *
+ * @param cls contains the `struct InterpreterState`
+ * @param tc scheduler context
+ */
+static void
+interpreter_run (void *cls,
+                 const struct GNUNET_SCHEDULER_TaskContext *tc);
+
+
+/**
+ * Function called upon completion of our /admin/add/incoming request.
+ *
+ * @param cls closure with the interpreter state
+ * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
+ *                    0 if the exchange's reply is bogus (fails to follow the protocol)
+ * @param full_response full response from the exchange (for logging, in case of errors)
+ */
+static void
+add_incoming_cb (void *cls,
+                 unsigned int http_status,
+                 json_t *full_response)
+{
+  struct InterpreterState *is = cls;
+  struct Command *cmd = &is->commands[is->ip];
+
+  cmd->details.admin_add_incoming.aih = NULL;
+  if (MHD_HTTP_OK != http_status)
+  {
+    GNUNET_break (0);
+    fail (is);
+    return;
+  }
+  is->ip++;
+  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
+                                       is);
+}
+
+
+/**
+ * Check if the given historic event @a h corresponds to the given
+ * command @a cmd.
+ *
+ * @param h event in history
+ * @param cmd an #OC_ADMIN_ADD_INCOMING command
+ * @return #GNUNET_OK if they match, #GNUNET_SYSERR if not
+ */
+static int
+compare_admin_add_incoming_history (const struct TALER_EXCHANGE_ReserveHistory *h,
+                                    const struct Command *cmd)
+{
+  struct TALER_Amount amount;
+
+  if (TALER_EXCHANGE_RTT_DEPOSIT != h->type)
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_string_to_amount (cmd->details.admin_add_incoming.amount,
+                                         &amount));
+  if (0 != TALER_amount_cmp (&amount,
+                             &h->amount))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Check if the given historic event @a h corresponds to the given
+ * command @a cmd.
+ *
+ * @param h event in history
+ * @param cmd an #OC_WITHDRAW_SIGN command
+ * @return #GNUNET_OK if they match, #GNUNET_SYSERR if not
+ */
+static int
+compare_reserve_withdraw_history (const struct TALER_EXCHANGE_ReserveHistory *h,
+                                  const struct Command *cmd)
+{
+  struct TALER_Amount amount;
+  struct TALER_Amount amount_with_fee;
+
+  if (TALER_EXCHANGE_RTT_WITHDRAWAL != h->type)
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_string_to_amount (cmd->details.reserve_withdraw.amount,
+                                         &amount));
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_amount_add (&amount_with_fee,
+                                   &amount,
+                                   &cmd->details.reserve_withdraw.pk->fee_withdraw));
+  if (0 != TALER_amount_cmp (&amount_with_fee,
+                             &h->amount))
+  {
+    GNUNET_break_op (0);
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Function called with the result of a /reserve/status request.
+ *
+ * @param cls closure with the interpreter state
+ * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
+ *                    0 if the exchange's reply is bogus (fails to follow the protocol)
+ * @param[in] json original response in JSON format (useful only for diagnostics)
+ * @param balance current balance in the reserve, NULL on error
+ * @param history_length number of entries in the transaction history, 0 on error
+ * @param history detailed transaction history, NULL on error
+ */
+static void
+reserve_status_cb (void *cls,
+                   unsigned int http_status,
+                   json_t *json,
+                   const struct TALER_Amount *balance,
+                   unsigned int history_length,
+                   const struct TALER_EXCHANGE_ReserveHistory *history)
+{
+  struct InterpreterState *is = cls;
+  struct Command *cmd = &is->commands[is->ip];
+  struct Command *rel;
+  unsigned int i;
+  unsigned int j;
+  struct TALER_Amount amount;
+
+  cmd->details.reserve_status.wsh = NULL;
+  if (cmd->expected_response_code != http_status)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u to command %s\n",
+                http_status,
+                cmd->label);
+    GNUNET_break (0);
+    json_dumpf (json, stderr, 0);
+    fail (is);
+    return;
+  }
+  switch (http_status)
+  {
+  case MHD_HTTP_OK:
+    /* FIXME: note that history events may come in a different
+       order than the commands. However, for now this works... */
+    j = 0;
+    for (i=0;i<is->ip;i++)
+    {
+      switch ((rel = &is->commands[i])->oc)
+      {
+      case OC_ADMIN_ADD_INCOMING:
+        if ( ( (NULL != rel->label) &&
+               (0 == strcmp (cmd->details.reserve_status.reserve_reference,
+                             rel->label) ) ) ||
+             ( (NULL != rel->details.admin_add_incoming.reserve_reference) &&
+               (0 == strcmp (cmd->details.reserve_status.reserve_reference,
+                             rel->details.admin_add_incoming.reserve_reference) ) ) )
+        {
+          if (GNUNET_OK !=
+              compare_admin_add_incoming_history (&history[j],
+                                                  rel))
+          {
+            GNUNET_break (0);
+            fail (is);
+            return;
+          }
+          j++;
+        }
+        break;
+      case OC_WITHDRAW_SIGN:
+        if (0 == strcmp (cmd->details.reserve_status.reserve_reference,
+                         rel->details.reserve_withdraw.reserve_reference))
+        {
+          if (GNUNET_OK !=
+              compare_reserve_withdraw_history (&history[j],
+                                             rel))
+          {
+            GNUNET_break (0);
+            fail (is);
+            return;
+          }
+          j++;
+        }
+        break;
+      default:
+        /* unreleated, just skip */
+        break;
+      }
+    }
+    if (j != history_length)
+    {
+      GNUNET_break (0);
+      fail (is);
+      return;
+    }
+    if (NULL != cmd->details.reserve_status.expected_balance)
+    {
+      GNUNET_assert (GNUNET_OK ==
+                     TALER_string_to_amount (cmd->details.reserve_status.expected_balance,
+                                             &amount));
+      if (0 != TALER_amount_cmp (&amount,
+                                 balance))
+      {
+        GNUNET_break (0);
+        fail (is);
+        return;
+      }
+    }
+    break;
+  default:
+    /* Unsupported status code (by test harness) */
+    GNUNET_break (0);
+    break;
+  }
+  is->ip++;
+  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
+                                       is);
+}
+
+
+/**
+ * Function called upon completion of our /reserve/withdraw request.
+ *
+ * @param cls closure with the interpreter state
+ * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
+ *                    0 if the exchange's reply is bogus (fails to follow the protocol)
+ * @param sig signature over the coin, NULL on error
+ * @param full_response full response from the exchange (for logging, in case of errors)
+ */
+static void
+reserve_withdraw_cb (void *cls,
+                     unsigned int http_status,
+                     const struct TALER_DenominationSignature *sig,
+                     json_t *full_response)
+{
+  struct InterpreterState *is = cls;
+  struct Command *cmd = &is->commands[is->ip];
+
+  cmd->details.reserve_withdraw.wsh = NULL;
+  if (cmd->expected_response_code != http_status)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u to command %s\n",
+                http_status,
+                cmd->label);
+    json_dumpf (full_response, stderr, 0);
+    GNUNET_break (0);
+    fail (is);
+    return;
+  }
+  switch (http_status)
+  {
+  case MHD_HTTP_OK:
+    if (NULL == sig)
+    {
+      GNUNET_break (0);
+      fail (is);
+      return;
+    }
+    cmd->details.reserve_withdraw.sig.rsa_signature
+      = GNUNET_CRYPTO_rsa_signature_dup (sig->rsa_signature);
+    break;
+  case MHD_HTTP_PAYMENT_REQUIRED:
+    /* nothing to check */
+    break;
+  default:
+    /* Unsupported status code (by test harness) */
+    GNUNET_break (0);
+    break;
+  }
+  is->ip++;
+  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
+                                       is);
+}
+
+
+/**
+ * Function called with the result of a /deposit operation.
+ *
+ * @param cls closure with the interpreter state
+ * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful deposit;
+ *                    0 if the exchange's reply is bogus (fails to follow the protocol)
+ * @param obj the received JSON reply, should be kept as proof (and, in case of errors,
+ *            be forwarded to the customer)
+ */
+static void
+deposit_cb (void *cls,
+            unsigned int http_status,
+            json_t *obj)
+{
+  struct InterpreterState *is = cls;
+  struct Command *cmd = &is->commands[is->ip];
+
+  cmd->details.deposit.dh = NULL;
+  if (cmd->expected_response_code != http_status)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u to command %s\n",
+                http_status,
+                cmd->label);
+    json_dumpf (obj, stderr, 0);
+    fail (is);
+    return;
+  }
+  is->ip++;
+  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
+                                       is);
+}
+
+
+/**
+ * Function called with the result of the /refresh/melt operation.
+ *
+ * @param cls closure with the interpreter state
+ * @param http_status HTTP response code, never #MHD_HTTP_OK (200) as for successful intermediate response this callback is skipped.
+ *                    0 if the exchange's reply is bogus (fails to follow the protocol)
+ * @param noreveal_index choice by the exchange in the cut-and-choose protocol,
+ *                    UINT16_MAX on error
+ * @param full_response full response from the exchange (for logging, in case of errors)
+ */
+static void
+melt_cb (void *cls,
+         unsigned int http_status,
+         uint16_t noreveal_index,
+         json_t *full_response)
+{
+  struct InterpreterState *is = cls;
+  struct Command *cmd = &is->commands[is->ip];
+
+  cmd->details.refresh_melt.rmh = NULL;
+  if (cmd->expected_response_code != http_status)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u to command %s\n",
+                http_status,
+                cmd->label);
+    json_dumpf (full_response, stderr, 0);
+    fail (is);
+    return;
+  }
+  cmd->details.refresh_melt.noreveal_index = noreveal_index;
+  is->ip++;
+  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
+                                       is);
+}
+
+
+/**
+ * Function called with the result of the /refresh/reveal operation.
+ *
+ * @param cls closure with the interpreter state
+ * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
+ *                    0 if the exchange's reply is bogus (fails to follow the protocol)
+ * @param num_coins number of fresh coins created, length of the @a sigs and @a coin_privs arrays, 0 if the operation failed
+ * @param coin_privs array of @a num_coins private keys for the coins that were created, NULL on error
+ * @param sigs array of signature over @a num_coins coins, NULL on error
+ * @param full_response full response from the exchange (for logging, in case of errors)
+ */
+static void
+reveal_cb (void *cls,
+           unsigned int http_status,
+           unsigned int num_coins,
+           const struct TALER_CoinSpendPrivateKeyP *coin_privs,
+           const struct TALER_DenominationSignature *sigs,
+           json_t *full_response)
+{
+  struct InterpreterState *is = cls;
+  struct Command *cmd = &is->commands[is->ip];
+  const struct Command *ref;
+  unsigned int i;
+
+  cmd->details.refresh_reveal.rrh = NULL;
+  if (cmd->expected_response_code != http_status)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u to command %s\n",
+                http_status,
+                cmd->label);
+    json_dumpf (full_response, stderr, 0);
+    fail (is);
+    return;
+  }
+  ref = find_command (is,
+                      cmd->details.refresh_reveal.melt_ref);
+  cmd->details.refresh_reveal.num_fresh_coins = num_coins;
+  switch (http_status)
+  {
+  case MHD_HTTP_OK:
+    cmd->details.refresh_reveal.fresh_coins
+      = GNUNET_new_array (num_coins,
+                          struct FreshCoin);
+    for (i=0;i<num_coins;i++)
+    {
+      struct FreshCoin *fc = &cmd->details.refresh_reveal.fresh_coins[i];
+
+      fc->pk = ref->details.refresh_melt.fresh_pks[i];
+      fc->coin_priv = coin_privs[i];
+      fc->sig.rsa_signature
+        = GNUNET_CRYPTO_rsa_signature_dup (sigs[i].rsa_signature);
+    }
+    break;
+  default:
+    break;
+  }
+
+  is->ip++;
+  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
+                                       is);
+}
+
+
+/**
+ * Function called with the result of a /refresh/link operation.
+ *
+ * @param cls closure with the interpreter state
+ * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
+ *                    0 if the exchange's reply is bogus (fails to follow the protocol)
+ * @param num_coins number of fresh coins created, length of the @a sigs and @a coin_privs arrays, 0 if the operation failed
+ * @param coin_privs array of @a num_coins private keys for the coins that were created, NULL on error
+ * @param sigs array of signature over @a num_coins coins, NULL on error
+ * @param pubs array of public keys for the @a sigs, NULL on error
+ * @param full_response full response from the exchange (for logging, in case of errors)
+ */
+static void
+link_cb (void *cls,
+         unsigned int http_status,
+         unsigned int num_coins,
+         const struct TALER_CoinSpendPrivateKeyP *coin_privs,
+         const struct TALER_DenominationSignature *sigs,
+         const struct TALER_DenominationPublicKey *pubs,
+         json_t *full_response)
+{
+  struct InterpreterState *is = cls;
+  struct Command *cmd = &is->commands[is->ip];
+  const struct Command *ref;
+  unsigned int i;
+  unsigned int j;
+  unsigned int found;
+
+  cmd->details.refresh_link.rlh = NULL;
+  if (cmd->expected_response_code != http_status)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u to command %s\n",
+                http_status,
+                cmd->label);
+    json_dumpf (full_response, stderr, 0);
+    fail (is);
+    return;
+  }
+  ref = find_command (is,
+                      cmd->details.refresh_link.reveal_ref);
+  switch (http_status)
+  {
+  case MHD_HTTP_OK:
+    /* check that number of coins returned matches */
+    if (num_coins != ref->details.refresh_reveal.num_fresh_coins)
+    {
+      GNUNET_break (0);
+      fail (is);
+      return;
+    }
+    /* check that the coins match */
+    for (i=0;i<num_coins;i++)
+      for (j=i+1;j<num_coins;j++)
+	if (0 == memcmp (&coin_privs[i],
+			 &coin_privs[j],
+			 sizeof (struct TALER_CoinSpendPrivateKeyP)))
+	  GNUNET_break (0);
+    /* Note: coins might be legitimately permutated in here... */
+    found = 0;
+    for (i=0;i<num_coins;i++)
+      for (j=0;j<num_coins;j++)
+      {
+	const struct FreshCoin *fc;
+
+	fc = &ref->details.refresh_reveal.fresh_coins[j];
+	if ( (0 == memcmp (&coin_privs[i],
+			   &fc->coin_priv,
+			   sizeof (struct TALER_CoinSpendPrivateKeyP))) &&
+	     (0 == GNUNET_CRYPTO_rsa_signature_cmp (fc->sig.rsa_signature,
+						    sigs[i].rsa_signature)) &&
+	     (0 == GNUNET_CRYPTO_rsa_public_key_cmp (fc->pk->key.rsa_public_key,
+						     pubs[i].rsa_public_key)) )
+	{
+	  found++;
+	  break;
+	}
+      }
+    if (found != num_coins)
+    {
+      fprintf (stderr,
+	       "Only %u/%u coins match expectations\n",
+	       found,
+	       num_coins);
+      GNUNET_break (0);
+      fail (is);
+      return;
+    }
+    break;
+  default:
+    break;
+  }
+  is->ip++;
+  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
+                                       is);
+}
+
+
+/**
+ * Find denomination key matching the given amount.
+ *
+ * @param keys array of keys to search
+ * @param amount coin value to look for
+ * @return NULL if no matching key was found
+ */
+static const struct TALER_EXCHANGE_DenomPublicKey *
+find_pk (const struct TALER_EXCHANGE_Keys *keys,
+         const struct TALER_Amount *amount)
+{
+  unsigned int i;
+  struct GNUNET_TIME_Absolute now;
+  struct TALER_EXCHANGE_DenomPublicKey *pk;
+  char *str;
+
+  now = GNUNET_TIME_absolute_get ();
+  for (i=0;i<keys->num_denom_keys;i++)
+  {
+    pk = &keys->denom_keys[i];
+    if ( (0 == TALER_amount_cmp (amount,
+                                 &pk->value)) &&
+         (now.abs_value_us >= pk->valid_from.abs_value_us) &&
+         (now.abs_value_us < pk->withdraw_valid_until.abs_value_us) )
+      return pk;
+  }
+  /* do 2nd pass to check if expiration times are to blame for failure */
+  str = TALER_amount_to_string (amount);
+  for (i=0;i<keys->num_denom_keys;i++)
+  {
+    pk = &keys->denom_keys[i];
+    if ( (0 == TALER_amount_cmp (amount,
+                                 &pk->value)) &&
+         ( (now.abs_value_us < pk->valid_from.abs_value_us) ||
+           (now.abs_value_us > pk->withdraw_valid_until.abs_value_us) ) )
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                  "Have denomination key for `%s', but with wrong expiration range %llu vs [%llu,%llu)\n",
+                  str,
+                  now.abs_value_us,
+                  pk->valid_from.abs_value_us,
+                  pk->withdraw_valid_until.abs_value_us);
+      GNUNET_free (str);
+      return NULL;
+    }
+  }
+  GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+              "No denomination key for amount %s found\n",
+              str);
+  GNUNET_free (str);
+  return NULL;
+}
+
+
+/**
+ * Callbacks called with the result(s) of a
+ * wire format inquiry request to the exchange.
+ *
+ * The callback is invoked multiple times, once for each supported @a
+ * method.  Finally, it is invoked one more time with cls/0/NULL/NULL
+ * to indicate the end of the iteration.  If any request fails to
+ * generate a valid response from the exchange, @a http_status will also
+ * be zero and the iteration will also end.  Thus, the iteration
+ * always ends with a final call with an @a http_status of 0. If the
+ * @a http_status is already 0 on the first call, then the response to
+ * the /wire request was invalid.  Later, clients can tell the
+ * difference between @a http_status of 0 indicating a failed
+ * /wire/method request and a regular end of the iteration by @a
+ * method being non-NULL.  If the exchange simply correctly asserts that
+ * it does not support any methods, @a method will be NULL but the @a
+ * http_status will be #MHD_HTTP_OK for the first call (followed by a
+ * cls/0/NULL/NULL call to signal the end of the iteration).
+ *
+ * @param cls closure with the interpreter state
+ * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful request;
+ *                    0 if the exchange's reply is bogus (fails to follow the protocol)
+ * @param method wire format method supported, i.e. "test" or "sepa", or NULL
+ *            if already the /wire request failed.
+ * @param obj the received JSON reply, if successful this should be the wire
+ *            format details as provided by /wire/METHOD/, or NULL if the
+ *            reply was not in JSON format (in this case, the client might
+ *            want to do an HTTP request to /wire/METHOD/ with a browser to
+ *            provide more information to the user about the @a method).
+ */
+static void
+wire_cb (void *cls,
+         unsigned int http_status,
+         const char *method,
+         json_t *obj)
+{
+  struct InterpreterState *is = cls;
+  struct Command *cmd = &is->commands[is->ip];
+
+  if (0 == http_status)
+  {
+    /* 0 always signals the end of the iteration */
+    cmd->details.wire.wh = NULL;
+  }
+  else if ( (NULL != method) &&
+            (0 != strcasecmp (method,
+                              cmd->details.wire.format)) )
+  {
+    /* not the method we care about, skip */
+    return;
+  }
+  if (cmd->expected_response_code != http_status)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u to command %s/%s\n",
+                http_status,
+                cmd->label,
+                method);
+    json_dumpf (obj, stderr, 0);
+    fail (is);
+    return;
+  }
+  if (0 == http_status)
+  {
+    /* end of iteration, move to next command */
+    is->ip++;
+    is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
+                                         is);
+    return;
+  }
+  /* For now, we only support to be called only once
+     with a "positive" result; so we switch to an
+     expected value of 0 for the 2nd iteration */
+  cmd->expected_response_code = 0;
+}
+
+
+/**
+ * Function called with detailed wire transfer data, including all
+ * of the coin transactions that were combined into the wire transfer.
+ *
+ * @param cls closure
+ * @param http_status HTTP status code we got, 0 on exchange protocol violation
+ * @param json original json reply (may include signatures, those have then been
+ *        validated already)
+ * @param wtid extracted wire transfer identifier, or NULL if the exchange could
+ *             not provide any (set only if @a http_status is #MHD_HTTP_OK)
+ * @param total_amount total amount of the wire transfer, or NULL if the exchange could
+ *             not provide any @a wtid (set only if @a http_status is #MHD_HTTP_OK)
+ * @param details_length length of the @a details array
+ * @param details array with details about the combined transactions
+ */
+static void
+wire_deposits_cb (void *cls,
+                  unsigned int http_status,
+                  json_t *json,
+                  const struct GNUNET_HashCode *h_wire,
+                  const struct TALER_Amount *total_amount,
+                  unsigned int details_length,
+                  const struct TALER_WireDepositDetails *details)
+{
+  struct InterpreterState *is = cls;
+  struct Command *cmd = &is->commands[is->ip];
+  const struct Command *ref;
+
+  cmd->details.wire_deposits.wdh = NULL;
+  ref = find_command (is,
+                      cmd->details.wire_deposits.wtid_ref);
+  if (cmd->expected_response_code != http_status)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u to command %s\n",
+                http_status,
+                cmd->label);
+    json_dumpf (json, stderr, 0);
+    fail (is);
+    return;
+  }
+  switch (http_status)
+  {
+  case MHD_HTTP_OK:
+    if (0 != TALER_amount_cmp (total_amount,
+                               &ref->details.deposit_wtid.total_amount_expected))
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Total amount missmatch to command %s\n",
+                  http_status,
+                  cmd->label);
+      json_dumpf (json, stderr, 0);
+      fail (is);
+      return;
+    }
+    if (NULL != ref->details.deposit_wtid.deposit_ref)
+    {
+      const struct Command *dep;
+      struct GNUNET_HashCode hw;
+
+      dep = find_command (is,
+                          ref->details.deposit_wtid.deposit_ref);
+      GNUNET_CRYPTO_hash (dep->details.deposit.wire_details,
+                          strlen (dep->details.deposit.wire_details),
+                          &hw);
+      if (0 != memcmp (&hw,
+                       h_wire,
+                       sizeof (struct GNUNET_HashCode)))
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                    "Wire hash missmatch to command %s\n",
+                    cmd->label);
+        json_dumpf (json, stderr, 0);
+        fail (is);
+        return;
+      }
+    }
+    break;
+  default:
+    break;
+  }
+
+  /* move to next command */
+  is->ip++;
+  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
+                                       is);
+}
+
+
+/**
+ * Function called with detailed wire transfer data.
+ *
+ * @param cls closure
+ * @param http_status HTTP status code we got, 0 on exchange protocol violation
+ * @param json original json reply (may include signatures, those have then been
+ *        validated already)
+ * @param wtid wire transfer identifier used by the exchange, NULL if exchange did not
+ *                  yet execute the transaction
+ * @param execution_time actual or planned execution time for the wire transfer
+ * @param coin_contribution contribution to the @a total_amount of the deposited coin (may be NULL)
+ * @param total_amount total amount of the wire transfer, or NULL if the exchange could
+ *             not provide any @a wtid (set only if @a http_status is #MHD_HTTP_OK)
+ */
+static void
+deposit_wtid_cb (void *cls,
+                 unsigned int http_status,
+                 json_t *json,
+                 const struct TALER_WireTransferIdentifierRawP *wtid,
+                 struct GNUNET_TIME_Absolute execution_time,
+                 const struct TALER_Amount *coin_contribution)
+{
+  struct InterpreterState *is = cls;
+  struct Command *cmd = &is->commands[is->ip];
+
+  cmd->details.deposit_wtid.dwh = NULL;
+  if (cmd->expected_response_code != http_status)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unexpected response code %u to command %s\n",
+                http_status,
+                cmd->label);
+    json_dumpf (json, stderr, 0);
+    fail (is);
+    return;
+  }
+  switch (http_status)
+  {
+  case MHD_HTTP_OK:
+    cmd->details.deposit_wtid.wtid = *wtid;
+    break;
+  default:
+    break;
+  }
+
+  /* move to next command */
+  is->ip++;
+  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
+                                       is);
+}
+
+
+/**
+ * Run the main interpreter loop that performs exchange operations.
+ *
+ * @param cls contains the `struct InterpreterState`
+ * @param tc scheduler context
+ */
+static void
+interpreter_run (void *cls,
+                 const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  struct InterpreterState *is = cls;
+  struct Command *cmd = &is->commands[is->ip];
+  const struct Command *ref;
+  struct TALER_ReservePublicKeyP reserve_pub;
+  struct TALER_CoinSpendPublicKeyP coin_pub;
+  struct TALER_Amount amount;
+  struct GNUNET_TIME_Absolute execution_date;
+  json_t *wire;
+
+  is->task = NULL;
+  if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
+  {
+    fprintf (stderr,
+             "Test aborted by shutdown request\n");
+    fail (is);
+    return;
+  }
+  switch (cmd->oc)
+  {
+  case OC_END:
+    result = GNUNET_OK;
+    GNUNET_SCHEDULER_shutdown ();
+    return;
+  case OC_ADMIN_ADD_INCOMING:
+    if (NULL !=
+        cmd->details.admin_add_incoming.reserve_reference)
+    {
+      ref = find_command (is,
+                          cmd->details.admin_add_incoming.reserve_reference);
+      GNUNET_assert (NULL != ref);
+      GNUNET_assert (OC_ADMIN_ADD_INCOMING == ref->oc);
+      cmd->details.admin_add_incoming.reserve_priv
+        = ref->details.admin_add_incoming.reserve_priv;
+    }
+    else
+    {
+      struct GNUNET_CRYPTO_EddsaPrivateKey *priv;
+
+      priv = GNUNET_CRYPTO_eddsa_key_create ();
+      cmd->details.admin_add_incoming.reserve_priv.eddsa_priv = *priv;
+      GNUNET_free (priv);
+    }
+    GNUNET_CRYPTO_eddsa_key_get_public (&cmd->details.admin_add_incoming.reserve_priv.eddsa_priv,
+                                        &reserve_pub.eddsa_pub);
+    if (GNUNET_OK !=
+        TALER_string_to_amount (cmd->details.admin_add_incoming.amount,
+                                &amount))
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Failed to parse amount `%s' at %u\n",
+                  cmd->details.admin_add_incoming.amount,
+                  is->ip);
+      fail (is);
+      return;
+    }
+    wire = json_loads (cmd->details.admin_add_incoming.wire,
+                       JSON_REJECT_DUPLICATES,
+                       NULL);
+    if (NULL == wire)
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Failed to parse wire details `%s' at %u\n",
+                  cmd->details.admin_add_incoming.wire,
+                  is->ip);
+      fail (is);
+      return;
+    }
+    execution_date = GNUNET_TIME_absolute_get ();
+    TALER_round_abs_time (&execution_date);
+    cmd->details.admin_add_incoming.aih
+      = TALER_EXCHANGE_admin_add_incoming (exchange,
+                                       &reserve_pub,
+                                       &amount,
+                                       execution_date,
+                                       wire,
+                                       &add_incoming_cb,
+                                       is);
+    if (NULL == cmd->details.admin_add_incoming.aih)
+    {
+      GNUNET_break (0);
+      fail (is);
+      return;
+    }
+    trigger_context_task ();
+    return;
+  case OC_WITHDRAW_STATUS:
+    GNUNET_assert (NULL !=
+                   cmd->details.reserve_status.reserve_reference);
+    ref = find_command (is,
+                        cmd->details.reserve_status.reserve_reference);
+    GNUNET_assert (NULL != ref);
+    GNUNET_assert (OC_ADMIN_ADD_INCOMING == ref->oc);
+    GNUNET_CRYPTO_eddsa_key_get_public (&ref->details.admin_add_incoming.reserve_priv.eddsa_priv,
+                                        &reserve_pub.eddsa_pub);
+    cmd->details.reserve_status.wsh
+      = TALER_EXCHANGE_reserve_status (exchange,
+                                   &reserve_pub,
+                                   &reserve_status_cb,
+                                   is);
+    trigger_context_task ();
+    return;
+  case OC_WITHDRAW_SIGN:
+    GNUNET_assert (NULL !=
+                   cmd->details.reserve_withdraw.reserve_reference);
+    ref = find_command (is,
+                        cmd->details.reserve_withdraw.reserve_reference);
+    GNUNET_assert (NULL != ref);
+    GNUNET_assert (OC_ADMIN_ADD_INCOMING == ref->oc);
+    if (NULL != cmd->details.reserve_withdraw.amount)
+    {
+      if (GNUNET_OK !=
+          TALER_string_to_amount (cmd->details.reserve_withdraw.amount,
+                                  &amount))
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                    "Failed to parse amount `%s' at %u\n",
+                    cmd->details.reserve_withdraw.amount,
+                    is->ip);
+        fail (is);
+        return;
+      }
+      cmd->details.reserve_withdraw.pk = find_pk (is->keys,
+                                                  &amount);
+    }
+    if (NULL == cmd->details.reserve_withdraw.pk)
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Failed to determine denomination key at %u\n",
+                  is->ip);
+      fail (is);
+      return;
+    }
+
+    /* create coin's private key */
+    {
+      struct GNUNET_CRYPTO_EddsaPrivateKey *priv;
+
+      priv = GNUNET_CRYPTO_eddsa_key_create ();
+      cmd->details.reserve_withdraw.coin_priv.eddsa_priv = *priv;
+      GNUNET_free (priv);
+    }
+    GNUNET_CRYPTO_eddsa_key_get_public (&cmd->details.reserve_withdraw.coin_priv.eddsa_priv,
+                                        &coin_pub.eddsa_pub);
+    cmd->details.reserve_withdraw.blinding_key.rsa_blinding_key
+      = GNUNET_CRYPTO_rsa_blinding_key_create (GNUNET_CRYPTO_rsa_public_key_len (cmd->details.reserve_withdraw.pk->key.rsa_public_key));
+    cmd->details.reserve_withdraw.wsh
+      = TALER_EXCHANGE_reserve_withdraw (exchange,
+                                     cmd->details.reserve_withdraw.pk,
+                                     &ref->details.admin_add_incoming.reserve_priv,
+                                     &cmd->details.reserve_withdraw.coin_priv,
+                                     &cmd->details.reserve_withdraw.blinding_key,
+                                     &reserve_withdraw_cb,
+                                     is);
+    if (NULL == cmd->details.reserve_withdraw.wsh)
+    {
+      GNUNET_break (0);
+      fail (is);
+      return;
+    }
+    trigger_context_task ();
+    return;
+  case OC_DEPOSIT:
+    {
+      struct GNUNET_HashCode h_contract;
+      const struct TALER_CoinSpendPrivateKeyP *coin_priv;
+      const struct TALER_EXCHANGE_DenomPublicKey *coin_pk;
+      const struct TALER_DenominationSignature *coin_pk_sig;
+      struct TALER_CoinSpendPublicKeyP coin_pub;
+      struct TALER_CoinSpendSignatureP coin_sig;
+      struct GNUNET_TIME_Absolute refund_deadline;
+      struct GNUNET_TIME_Absolute wire_deadline;
+      struct GNUNET_TIME_Absolute timestamp;
+      struct GNUNET_CRYPTO_EddsaPrivateKey *priv;
+      struct TALER_MerchantPublicKeyP merchant_pub;
+      json_t *contract;
+      json_t *wire;
+
+      GNUNET_assert (NULL !=
+                     cmd->details.deposit.coin_ref);
+      ref = find_command (is,
+                          cmd->details.deposit.coin_ref);
+      GNUNET_assert (NULL != ref);
+      switch (ref->oc)
+      {
+      case OC_WITHDRAW_SIGN:
+        coin_priv = &ref->details.reserve_withdraw.coin_priv;
+        coin_pk = ref->details.reserve_withdraw.pk;
+        coin_pk_sig = &ref->details.reserve_withdraw.sig;
+        break;
+      case OC_REFRESH_REVEAL:
+        {
+          const struct FreshCoin *fc;
+          unsigned int idx;
+
+          idx = cmd->details.deposit.coin_idx;
+          GNUNET_assert (idx < ref->details.refresh_reveal.num_fresh_coins);
+          fc = &ref->details.refresh_reveal.fresh_coins[idx];
+
+          coin_priv = &fc->coin_priv;
+          coin_pk = fc->pk;
+          coin_pk_sig = &fc->sig;
+        }
+        break;
+      default:
+        GNUNET_assert (0);
+      }
+      if (GNUNET_OK !=
+          TALER_string_to_amount (cmd->details.deposit.amount,
+                                  &amount))
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                    "Failed to parse amount `%s' at %u\n",
+                    cmd->details.deposit.amount,
+                    is->ip);
+        fail (is);
+        return;
+      }
+      contract = json_loads (cmd->details.deposit.contract,
+                             JSON_REJECT_DUPLICATES,
+                             NULL);
+      if (NULL == contract)
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                    "Failed to parse contract details `%s' at %u/%s\n",
+                    cmd->details.deposit.contract,
+                    is->ip,
+                    cmd->label);
+        fail (is);
+        return;
+      }
+      TALER_hash_json (contract,
+                       &h_contract);
+      wire = json_loads (cmd->details.deposit.wire_details,
+                         JSON_REJECT_DUPLICATES,
+                         NULL);
+      if (NULL == wire)
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                    "Failed to parse wire details `%s' at %u/%s\n",
+                    cmd->details.deposit.wire_details,
+                    is->ip,
+                    cmd->label);
+        fail (is);
+        return;
+      }
+      GNUNET_CRYPTO_eddsa_key_get_public (&coin_priv->eddsa_priv,
+                                          &coin_pub.eddsa_pub);
+
+      priv = GNUNET_CRYPTO_eddsa_key_create ();
+      cmd->details.deposit.merchant_priv.eddsa_priv = *priv;
+      GNUNET_free (priv);
+      if (0 != cmd->details.deposit.refund_deadline.rel_value_us)
+      {
+        refund_deadline = GNUNET_TIME_relative_to_absolute (cmd->details.deposit.refund_deadline);
+      }
+      else
+      {
+        refund_deadline = GNUNET_TIME_UNIT_ZERO_ABS;
+      }
+      GNUNET_CRYPTO_eddsa_key_get_public (&cmd->details.deposit.merchant_priv.eddsa_priv,
+                                          &merchant_pub.eddsa_pub);
+
+      wire_deadline = GNUNET_TIME_relative_to_absolute (GNUNET_TIME_UNIT_DAYS);
+      timestamp = GNUNET_TIME_absolute_get ();
+      TALER_round_abs_time (&timestamp);
+      {
+        struct TALER_DepositRequestPS dr;
+
+        memset (&dr, 0, sizeof (dr));
+        dr.purpose.size = htonl (sizeof (struct TALER_DepositRequestPS));
+        dr.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_DEPOSIT);
+        dr.h_contract = h_contract;
+        TALER_hash_json (wire,
+                         &dr.h_wire);
+        dr.timestamp = GNUNET_TIME_absolute_hton (timestamp);
+        dr.refund_deadline = GNUNET_TIME_absolute_hton (refund_deadline);
+        dr.transaction_id = GNUNET_htonll (cmd->details.deposit.transaction_id);
+        TALER_amount_hton (&dr.amount_with_fee,
+                           &amount);
+        TALER_amount_hton (&dr.deposit_fee,
+                           &coin_pk->fee_deposit);
+        dr.merchant = merchant_pub;
+        dr.coin_pub = coin_pub;
+        GNUNET_assert (GNUNET_OK ==
+                       GNUNET_CRYPTO_eddsa_sign (&coin_priv->eddsa_priv,
+                                                 &dr.purpose,
+                                                 &coin_sig.eddsa_signature));
+      }
+      cmd->details.deposit.dh
+        = TALER_EXCHANGE_deposit (exchange,
+                              &amount,
+                              wire_deadline,
+                              wire,
+                              &h_contract,
+                              &coin_pub,
+                              coin_pk_sig,
+                              &coin_pk->key,
+                              timestamp,
+                              cmd->details.deposit.transaction_id,
+                              &merchant_pub,
+                              refund_deadline,
+                              &coin_sig,
+                              &deposit_cb,
+                              is);
+      if (NULL == cmd->details.deposit.dh)
+      {
+        GNUNET_break (0);
+        json_decref (wire);
+        fail (is);
+        return;
+      }
+      json_decref (wire);
+      trigger_context_task ();
+      return;
+    }
+  case OC_REFRESH_MELT:
+    {
+      unsigned int num_melted_coins;
+      unsigned int num_fresh_coins;
+
+      cmd->details.refresh_melt.noreveal_index = UINT16_MAX;
+      for (num_melted_coins=0;
+           NULL != cmd->details.refresh_melt.melted_coins[num_melted_coins].amount;
+           num_melted_coins++) ;
+      for (num_fresh_coins=0;
+           NULL != cmd->details.refresh_melt.fresh_amounts[num_fresh_coins];
+           num_fresh_coins++) ;
+
+      cmd->details.refresh_melt.fresh_pks
+        = GNUNET_new_array (num_fresh_coins,
+                            const struct TALER_EXCHANGE_DenomPublicKey *);
+      {
+        struct TALER_CoinSpendPrivateKeyP melt_privs[num_melted_coins];
+        struct TALER_Amount melt_amounts[num_melted_coins];
+        struct TALER_DenominationSignature melt_sigs[num_melted_coins];
+        struct TALER_EXCHANGE_DenomPublicKey melt_pks[num_melted_coins];
+        struct TALER_EXCHANGE_DenomPublicKey fresh_pks[num_fresh_coins];
+        unsigned int i;
+
+        for (i=0;i<num_melted_coins;i++)
+        {
+          const struct MeltDetails *md = &cmd->details.refresh_melt.melted_coins[i];
+          ref = find_command (is,
+                              md->coin_ref);
+          GNUNET_assert (NULL != ref);
+          GNUNET_assert (OC_WITHDRAW_SIGN == ref->oc);
+
+          melt_privs[i] = ref->details.reserve_withdraw.coin_priv;
+          if (GNUNET_OK !=
+              TALER_string_to_amount (md->amount,
+                                      &melt_amounts[i]))
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "Failed to parse amount `%s' at %u\n",
+                        md->amount,
+                        is->ip);
+            fail (is);
+            return;
+          }
+          melt_sigs[i] = ref->details.reserve_withdraw.sig;
+          melt_pks[i] = *ref->details.reserve_withdraw.pk;
+        }
+        for (i=0;i<num_fresh_coins;i++)
+        {
+          if (GNUNET_OK !=
+              TALER_string_to_amount (cmd->details.refresh_melt.fresh_amounts[i],
+                                      &amount))
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "Failed to parse amount `%s' at %u\n",
+                        cmd->details.reserve_withdraw.amount,
+                        is->ip);
+            fail (is);
+            return;
+          }
+          cmd->details.refresh_melt.fresh_pks[i]
+            = find_pk (is->keys,
+                       &amount);
+          fresh_pks[i] = *cmd->details.refresh_melt.fresh_pks[i];
+        }
+        cmd->details.refresh_melt.refresh_data
+          = TALER_EXCHANGE_refresh_prepare (num_melted_coins,
+                                        melt_privs,
+                                        melt_amounts,
+                                        melt_sigs,
+                                        melt_pks,
+                                        GNUNET_YES,
+                                        num_fresh_coins,
+                                        fresh_pks,
+                                        &cmd->details.refresh_melt.refresh_data_length);
+        if (NULL == cmd->details.refresh_melt.refresh_data)
+        {
+          GNUNET_break (0);
+          fail (is);
+          return;
+        }
+        cmd->details.refresh_melt.rmh
+          = TALER_EXCHANGE_refresh_melt (exchange,
+                                     cmd->details.refresh_melt.refresh_data_length,
+                                     cmd->details.refresh_melt.refresh_data,
+                                     &melt_cb,
+                                     is);
+        if (NULL == cmd->details.refresh_melt.rmh)
+        {
+          GNUNET_break (0);
+          fail (is);
+          return;
+        }
+      }
+    }
+    trigger_context_task ();
+    return;
+  case OC_REFRESH_REVEAL:
+    ref = find_command (is,
+                        cmd->details.refresh_reveal.melt_ref);
+    cmd->details.refresh_reveal.rrh
+      = TALER_EXCHANGE_refresh_reveal (exchange,
+                                   ref->details.refresh_melt.refresh_data_length,
+                                   ref->details.refresh_melt.refresh_data,
+                                   ref->details.refresh_melt.noreveal_index,
+                                   &reveal_cb,
+                                   is);
+    if (NULL == cmd->details.refresh_reveal.rrh)
+    {
+      GNUNET_break (0);
+      fail (is);
+      return;
+    }
+    trigger_context_task ();
+    return;
+  case OC_REFRESH_LINK:
+    /* find reveal command */
+    ref = find_command (is,
+                        cmd->details.refresh_link.reveal_ref);
+    /* find melt command */
+    ref = find_command (is,
+                        ref->details.refresh_reveal.melt_ref);
+    /* find reserve_withdraw command */
+    {
+      unsigned int idx;
+      const struct MeltDetails *md;
+      unsigned int num_melted_coins;
+
+      for (num_melted_coins=0;
+           NULL != ref->details.refresh_melt.melted_coins[num_melted_coins].amount;
+           num_melted_coins++) ;
+      idx = cmd->details.refresh_link.coin_idx;
+      GNUNET_assert (idx < num_melted_coins);
+      md = &ref->details.refresh_melt.melted_coins[idx];
+      ref = find_command (is,
+                          md->coin_ref);
+    }
+    GNUNET_assert (OC_WITHDRAW_SIGN == ref->oc);
+    /* finally, use private key from withdraw sign command */
+    cmd->details.refresh_link.rlh
+      = TALER_EXCHANGE_refresh_link (exchange,
+                                 &ref->details.reserve_withdraw.coin_priv,
+                                 &link_cb,
+                                 is);
+    if (NULL == cmd->details.refresh_link.rlh)
+    {
+      GNUNET_break (0);
+      fail (is);
+      return;
+    }
+    trigger_context_task ();
+    return;
+  case OC_WIRE:
+    cmd->details.wire.wh = TALER_EXCHANGE_wire (exchange,
+                                            &wire_cb,
+                                            is);
+    trigger_context_task ();
+    return;
+  case OC_WIRE_DEPOSITS:
+    if (NULL != cmd->details.wire_deposits.wtid_ref)
+    {
+      ref = find_command (is,
+                          cmd->details.wire_deposits.wtid_ref);
+      GNUNET_assert (NULL != ref);
+      cmd->details.wire_deposits.wtid = ref->details.deposit_wtid.wtid;
+    }
+    cmd->details.wire_deposits.wdh
+      = TALER_EXCHANGE_wire_deposits (exchange,
+                                  &cmd->details.wire_deposits.wtid,
+                                  &wire_deposits_cb,
+                                  is);
+    trigger_context_task ();
+    return;
+  case OC_DEPOSIT_WTID:
+    {
+      struct GNUNET_HashCode h_wire;
+      struct GNUNET_HashCode h_contract;
+      json_t *wire;
+      json_t *contract;
+      const struct Command *coin;
+      struct TALER_CoinSpendPublicKeyP coin_pub;
+
+      ref = find_command (is,
+                          cmd->details.deposit_wtid.deposit_ref);
+      GNUNET_assert (NULL != ref);
+      coin = find_command (is,
+                           ref->details.deposit.coin_ref);
+      GNUNET_assert (NULL != coin);
+      switch (coin->oc)
+      {
+      case OC_WITHDRAW_SIGN:
+        GNUNET_CRYPTO_eddsa_key_get_public (&coin->details.reserve_withdraw.coin_priv.eddsa_priv,
+                                            &coin_pub.eddsa_pub);
+        break;
+      case OC_REFRESH_REVEAL:
+        {
+          const struct FreshCoin *fc;
+          unsigned int idx;
+
+          idx = ref->details.deposit.coin_idx;
+          GNUNET_assert (idx < coin->details.refresh_reveal.num_fresh_coins);
+          fc = &coin->details.refresh_reveal.fresh_coins[idx];
+
+          GNUNET_CRYPTO_eddsa_key_get_public (&fc->coin_priv.eddsa_priv,
+                                              &coin_pub.eddsa_pub);
+        }
+        break;
+      default:
+        GNUNET_assert (0);
+      }
+
+      wire = json_loads (ref->details.deposit.wire_details,
+                         JSON_REJECT_DUPLICATES,
+                         NULL);
+      GNUNET_assert (NULL != wire);
+      TALER_hash_json (wire,
+                       &h_wire);
+      json_decref (wire);
+      contract = json_loads (ref->details.deposit.contract,
+                             JSON_REJECT_DUPLICATES,
+                             NULL);
+      GNUNET_assert (NULL != contract);
+      TALER_hash_json (contract,
+                       &h_contract);
+      json_decref (contract);
+      cmd->details.deposit_wtid.dwh
+        = TALER_EXCHANGE_deposit_wtid (exchange,
+                                   &ref->details.deposit.merchant_priv,
+                                   &h_wire,
+                                   &h_contract,
+                                   &coin_pub,
+                                   ref->details.deposit.transaction_id,
+                                   &deposit_wtid_cb,
+                                   is);
+      trigger_context_task ();
+    }
+    return;
+  default:
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Unknown instruction %d at %u (%s)\n",
+                cmd->oc,
+                is->ip,
+                cmd->label);
+    fail (is);
+    return;
+  }
+}
+
+
+/**
+ * Function run when the test terminates (good or bad).
+ * Cleans up our state.
+ *
+ * @param cls the interpreter state.
+ * @param tc unused
+ */
+static void
+do_shutdown (void *cls,
+             const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  struct InterpreterState *is = cls;
+  struct Command *cmd;
+  unsigned int i;
+
+  shutdown_task = NULL;
+  for (i=0;OC_END != (cmd = &is->commands[i])->oc;i++)
+  {
+    switch (cmd->oc)
+    {
+    case OC_END:
+      GNUNET_assert (0);
+      break;
+    case OC_ADMIN_ADD_INCOMING:
+      if (NULL != cmd->details.admin_add_incoming.aih)
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                    "Command %u (%s) did not complete\n",
+                    i,
+                    cmd->label);
+        TALER_EXCHANGE_admin_add_incoming_cancel (cmd->details.admin_add_incoming.aih);
+        cmd->details.admin_add_incoming.aih = NULL;
+      }
+      break;
+    case OC_WITHDRAW_STATUS:
+      if (NULL != cmd->details.reserve_status.wsh)
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                    "Command %u (%s) did not complete\n",
+                    i,
+                    cmd->label);
+        TALER_EXCHANGE_reserve_status_cancel (cmd->details.reserve_status.wsh);
+        cmd->details.reserve_status.wsh = NULL;
+      }
+      break;
+    case OC_WITHDRAW_SIGN:
+      if (NULL != cmd->details.reserve_withdraw.wsh)
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                    "Command %u (%s) did not complete\n",
+                    i,
+                    cmd->label);
+        TALER_EXCHANGE_reserve_withdraw_cancel (cmd->details.reserve_withdraw.wsh);
+        cmd->details.reserve_withdraw.wsh = NULL;
+      }
+      if (NULL != cmd->details.reserve_withdraw.sig.rsa_signature)
+      {
+        GNUNET_CRYPTO_rsa_signature_free (cmd->details.reserve_withdraw.sig.rsa_signature);
+        cmd->details.reserve_withdraw.sig.rsa_signature = NULL;
+      }
+      if (NULL != cmd->details.reserve_withdraw.blinding_key.rsa_blinding_key)
+      {
+        GNUNET_CRYPTO_rsa_blinding_key_free (cmd->details.reserve_withdraw.blinding_key.rsa_blinding_key);
+        cmd->details.reserve_withdraw.blinding_key.rsa_blinding_key = NULL;
+      }
+      break;
+    case OC_DEPOSIT:
+      if (NULL != cmd->details.deposit.dh)
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                    "Command %u (%s) did not complete\n",
+                    i,
+                    cmd->label);
+        TALER_EXCHANGE_deposit_cancel (cmd->details.deposit.dh);
+        cmd->details.deposit.dh = NULL;
+      }
+      break;
+    case OC_REFRESH_MELT:
+      if (NULL != cmd->details.refresh_melt.rmh)
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                    "Command %u (%s) did not complete\n",
+                    i,
+                    cmd->label);
+        TALER_EXCHANGE_refresh_melt_cancel (cmd->details.refresh_melt.rmh);
+        cmd->details.refresh_melt.rmh = NULL;
+      }
+      GNUNET_free_non_null (cmd->details.refresh_melt.fresh_pks);
+      cmd->details.refresh_melt.fresh_pks = NULL;
+      GNUNET_free_non_null (cmd->details.refresh_melt.refresh_data);
+      cmd->details.refresh_melt.refresh_data = NULL;
+      cmd->details.refresh_melt.refresh_data_length = 0;
+      break;
+    case OC_REFRESH_REVEAL:
+      if (NULL != cmd->details.refresh_reveal.rrh)
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                    "Command %u (%s) did not complete\n",
+                    i,
+                    cmd->label);
+        TALER_EXCHANGE_refresh_reveal_cancel (cmd->details.refresh_reveal.rrh);
+        cmd->details.refresh_reveal.rrh = NULL;
+      }
+      {
+        unsigned int j;
+        struct FreshCoin *fresh_coins;
+
+        fresh_coins = cmd->details.refresh_reveal.fresh_coins;
+        for (j=0;j<cmd->details.refresh_reveal.num_fresh_coins;j++)
+          GNUNET_CRYPTO_rsa_signature_free (fresh_coins[j].sig.rsa_signature);
+      }
+      GNUNET_free_non_null (cmd->details.refresh_reveal.fresh_coins);
+      cmd->details.refresh_reveal.fresh_coins = NULL;
+      cmd->details.refresh_reveal.num_fresh_coins = 0;
+      break;
+    case OC_REFRESH_LINK:
+      if (NULL != cmd->details.refresh_link.rlh)
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                    "Command %u (%s) did not complete\n",
+                    i,
+                    cmd->label);
+        TALER_EXCHANGE_refresh_link_cancel (cmd->details.refresh_link.rlh);
+        cmd->details.refresh_link.rlh = NULL;
+      }
+      break;
+    case OC_WIRE:
+      if (NULL != cmd->details.wire.wh)
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                    "Command %u (%s) did not complete\n",
+                    i,
+                    cmd->label);
+        TALER_EXCHANGE_wire_cancel (cmd->details.wire.wh);
+        cmd->details.wire.wh = NULL;
+      }
+      break;
+    case OC_WIRE_DEPOSITS:
+      if (NULL != cmd->details.wire_deposits.wdh)
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                    "Command %u (%s) did not complete\n",
+                    i,
+                    cmd->label);
+        TALER_EXCHANGE_wire_deposits_cancel (cmd->details.wire_deposits.wdh);
+        cmd->details.wire_deposits.wdh = NULL;
+      }
+      break;
+    case OC_DEPOSIT_WTID:
+      if (NULL != cmd->details.deposit_wtid.dwh)
+      {
+        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                    "Command %u (%s) did not complete\n",
+                    i,
+                    cmd->label);
+        TALER_EXCHANGE_deposit_wtid_cancel (cmd->details.deposit_wtid.dwh);
+        cmd->details.deposit_wtid.dwh = NULL;
+      }
+      break;
+    default:
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Unknown instruction %d at %u (%s)\n",
+                  cmd->oc,
+                  i,
+                  cmd->label);
+      break;
+    }
+  }
+  if (NULL != is->task)
+  {
+    GNUNET_SCHEDULER_cancel (is->task);
+    is->task = NULL;
+  }
+  GNUNET_free (is);
+  if (NULL != ctx_task)
+  {
+    GNUNET_SCHEDULER_cancel (ctx_task);
+    ctx_task = NULL;
+  }
+  if (NULL != exchange)
+  {
+    TALER_EXCHANGE_disconnect (exchange);
+    exchange = NULL;
+  }
+  if (NULL != ctx)
+  {
+    TALER_EXCHANGE_fini (ctx);
+    ctx = NULL;
+  }
+}
+
+
+/**
+ * Functions of this type are called to provide the retrieved signing and
+ * denomination keys of the exchange.  No TALER_EXCHANGE_*() functions should be called
+ * in this callback.
+ *
+ * @param cls closure
+ * @param keys information about keys of the exchange
+ */
+static void
+cert_cb (void *cls,
+         const struct TALER_EXCHANGE_Keys *keys)
+{
+  struct InterpreterState *is = cls;
+
+  /* check that keys is OK */
+#define ERR(cond) do { if(!(cond)) break; GNUNET_break (0); GNUNET_SCHEDULER_shutdown(); return; } while (0)
+  ERR (NULL == keys);
+  ERR (0 == keys->num_sign_keys);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Read %u signing keys\n",
+              keys->num_sign_keys);
+  ERR (0 == keys->num_denom_keys);
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Read %u denomination keys\n",
+              keys->num_denom_keys);
+#undef ERR
+
+  /* run actual tests via interpreter-loop */
+  is->keys = keys;
+  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
+                                       is);
+}
+
+
+/**
+ * Task that runs the context's event loop with the GNUnet scheduler.
+ *
+ * @param cls unused
+ * @param tc scheduler context (unused)
+ */
+static void
+context_task (void *cls,
+              const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  long timeout;
+  int max_fd;
+  fd_set read_fd_set;
+  fd_set write_fd_set;
+  fd_set except_fd_set;
+  struct GNUNET_NETWORK_FDSet *rs;
+  struct GNUNET_NETWORK_FDSet *ws;
+  struct GNUNET_TIME_Relative delay;
+
+  ctx_task = NULL;
+  TALER_EXCHANGE_perform (ctx);
+  max_fd = -1;
+  timeout = -1;
+  FD_ZERO (&read_fd_set);
+  FD_ZERO (&write_fd_set);
+  FD_ZERO (&except_fd_set);
+  TALER_EXCHANGE_get_select_info (ctx,
+                              &read_fd_set,
+                              &write_fd_set,
+                              &except_fd_set,
+                              &max_fd,
+                              &timeout);
+  if (timeout >= 0)
+    delay = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
+                                           timeout);
+  else
+    delay = GNUNET_TIME_UNIT_FOREVER_REL;
+  rs = GNUNET_NETWORK_fdset_create ();
+  GNUNET_NETWORK_fdset_copy_native (rs,
+                                    &read_fd_set,
+                                    max_fd + 1);
+  ws = GNUNET_NETWORK_fdset_create ();
+  GNUNET_NETWORK_fdset_copy_native (ws,
+                                    &write_fd_set,
+                                    max_fd + 1);
+  ctx_task = GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
+                                          delay,
+                                          rs,
+                                          ws,
+                                          &context_task,
+                                          cls);
+  GNUNET_NETWORK_fdset_destroy (rs);
+  GNUNET_NETWORK_fdset_destroy (ws);
+}
+
+
+/**
+ * Main function that will be run by the scheduler.
+ *
+ * @param cls closure
+ * @param args remaining command-line arguments
+ * @param cfgfile name of the configuration file used (for saving, can be NULL!)
+ * @param config configuration
+ */
+static void
+run (void *cls,
+     const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  struct InterpreterState *is;
+  static struct MeltDetails melt_coins_1[] = {
+    { .amount = "EUR:4",
+      .coin_ref = "refresh-withdraw-coin-1" },
+    { NULL, NULL }
+  };
+  static const char *melt_fresh_amounts_1[] = {
+    "EUR:1",
+    "EUR:1",
+    "EUR:1",
+    "EUR:0.1",
+    "EUR:0.1",
+    "EUR:0.1",
+    "EUR:0.1",
+    "EUR:0.1",
+    "EUR:0.1",
+    "EUR:0.1",
+    "EUR:0.1",
+    "EUR:0.01",
+    "EUR:0.01",
+    "EUR:0.01",
+    "EUR:0.01",
+    "EUR:0.01",
+    "EUR:0.01",
+    /* with 0.01 withdraw fees (except for 1ct coins),
+       this totals up to exactly EUR:3.97, and with
+       the 0.03 refresh fee, to EUR:4.0*/
+    NULL
+  };
+  static struct Command commands[] =
+  {
+    /* *************** start of /wire testing ************** */
+
+#if WIRE_TEST
+    { .oc = OC_WIRE,
+      .label = "wire-test",
+      /* /wire/test replies with a 302 redirect */
+      .expected_response_code = MHD_HTTP_FOUND,
+      .details.wire.format = "test" },
+#endif
+#if WIRE_SEPA
+    { .oc = OC_WIRE,
+      .label = "wire-sepa",
+      /* /wire/sepa replies with a 200 redirect */
+      .expected_response_code = MHD_HTTP_OK,
+      .details.wire.format = "sepa" },
+#endif
+    /* *************** end of /wire testing ************** */
+
+#if WIRE_TEST
+    /* None of this works if 'test' is not allowed as we do
+       /admin/add/incoming with format 'test' */
+
+    /* Fill reserve with EUR:5.01, as withdraw fee is 1 ct per config */
+    { .oc = OC_ADMIN_ADD_INCOMING,
+      .label = "create-reserve-1",
+      .expected_response_code = MHD_HTTP_OK,
+      .details.admin_add_incoming.wire = "{ \"type\":\"TEST\", \"bank\":\"source bank\", \"account\":42 }",
+      .details.admin_add_incoming.amount = "EUR:5.01" },
+    /* Withdraw a 5 EUR coin, at fee of 1 ct */
+    { .oc = OC_WITHDRAW_SIGN,
+      .label = "withdraw-coin-1",
+      .expected_response_code = MHD_HTTP_OK,
+      .details.reserve_withdraw.reserve_reference = "create-reserve-1",
+      .details.reserve_withdraw.amount = "EUR:5" },
+    /* Check that deposit and withdraw operation are in history, and
+       that the balance is now at zero */
+    { .oc = OC_WITHDRAW_STATUS,
+      .label = "withdraw-status-1",
+      .expected_response_code = MHD_HTTP_OK,
+      .details.reserve_status.reserve_reference = "create-reserve-1",
+      .details.reserve_status.expected_balance = "EUR:0" },
+    /* Try to deposit the 5 EUR coin (in full) */
+    { .oc = OC_DEPOSIT,
+      .label = "deposit-simple",
+      .expected_response_code = MHD_HTTP_OK,
+      .details.deposit.amount = "EUR:5",
+      .details.deposit.coin_ref = "withdraw-coin-1",
+      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
+      .details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":1 } ] }",
+      .details.deposit.transaction_id = 1 },
+
+    /* Try to overdraw funds ... */
+    { .oc = OC_WITHDRAW_SIGN,
+      .label = "withdraw-coin-2",
+      .expected_response_code = MHD_HTTP_PAYMENT_REQUIRED,
+      .details.reserve_withdraw.reserve_reference = "create-reserve-1",
+      .details.reserve_withdraw.amount = "EUR:5" },
+
+    /* Try to double-spend the 5 EUR coin with different wire details */
+    { .oc = OC_DEPOSIT,
+      .label = "deposit-double-1",
+      .expected_response_code = MHD_HTTP_FORBIDDEN,
+      .details.deposit.amount = "EUR:5",
+      .details.deposit.coin_ref = "withdraw-coin-1",
+      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":43 }",
+      .details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":1 } ] }",
+      .details.deposit.transaction_id = 1 },
+    /* Try to double-spend the 5 EUR coin at the same merchant (but different
+       transaction ID) */
+    { .oc = OC_DEPOSIT,
+      .label = "deposit-double-2",
+      .expected_response_code = MHD_HTTP_FORBIDDEN,
+      .details.deposit.amount = "EUR:5",
+      .details.deposit.coin_ref = "withdraw-coin-1",
+      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
+      .details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":1 } ] }",
+      .details.deposit.transaction_id = 2 },
+    /* Try to double-spend the 5 EUR coin at the same merchant (but different
+       contract) */
+    { .oc = OC_DEPOSIT,
+      .label = "deposit-double-3",
+      .expected_response_code = MHD_HTTP_FORBIDDEN,
+      .details.deposit.amount = "EUR:5",
+      .details.deposit.coin_ref = "withdraw-coin-1",
+      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
+      .details.deposit.contract = "{ \"items\":[{ \"name\":\"ice cream\", \"value\":2 } ] }",
+      .details.deposit.transaction_id = 1 },
+
+    /* ***************** /refresh testing ******************** */
+
+    /* Fill reserve with EUR:5.01, as withdraw fee is 1 ct */
+    { .oc = OC_ADMIN_ADD_INCOMING,
+      .label = "refresh-create-reserve-1",
+      .expected_response_code = MHD_HTTP_OK,
+      .details.admin_add_incoming.wire = "{ \"type\":\"TEST\", \"bank\":\"source bank\", \"account\":424 }",
+      .details.admin_add_incoming.amount = "EUR:5.01" },
+    /* Withdraw a 5 EUR coin, at fee of 1 ct */
+    { .oc = OC_WITHDRAW_SIGN,
+      .label = "refresh-withdraw-coin-1",
+      .expected_response_code = MHD_HTTP_OK,
+      .details.reserve_withdraw.reserve_reference = "refresh-create-reserve-1",
+      .details.reserve_withdraw.amount = "EUR:5" },
+    /* Try to partially spend (deposit) 1 EUR of the 5 EUR coin (in full)
+       (merchant would receive EUR:0.99 due to 1 ct deposit fee) */
+    { .oc = OC_DEPOSIT,
+      .label = "refresh-deposit-partial",
+      .expected_response_code = MHD_HTTP_OK,
+      .details.deposit.amount = "EUR:1",
+      .details.deposit.coin_ref = "refresh-withdraw-coin-1",
+      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
+      .details.deposit.contract = "{ \"items\" : [ { \"name\":\"ice cream\", \"value\":\"EUR:1\" } ] }",
+      .details.deposit.transaction_id = 42421 },
+
+    /* Melt the rest of the coin's value (EUR:4.00 = 3x EUR:1.03 + 7x EUR:0.13) */
+
+    { .oc = OC_REFRESH_MELT,
+      .label = "refresh-melt-1",
+      .expected_response_code = MHD_HTTP_OK,
+      .details.refresh_melt.melted_coins = melt_coins_1,
+      .details.refresh_melt.fresh_amounts = melt_fresh_amounts_1 },
+
+
+    /* Complete (successful) melt operation, and withdraw the coins */
+    { .oc = OC_REFRESH_REVEAL,
+      .label = "refresh-reveal-1",
+      .expected_response_code = MHD_HTTP_OK,
+      .details.refresh_reveal.melt_ref = "refresh-melt-1" },
+
+    /* Test that /refresh/link works */
+    { .oc = OC_REFRESH_LINK,
+      .label = "refresh-link-1",
+      .expected_response_code = MHD_HTTP_OK,
+      .details.refresh_link.reveal_ref = "refresh-reveal-1" },
+
+
+    /* Test successfully spending coins from the refresh operation:
+       first EUR:1 */
+    { .oc = OC_DEPOSIT,
+      .label = "refresh-deposit-refreshed-1a",
+      .expected_response_code = MHD_HTTP_OK,
+      .details.deposit.amount = "EUR:1",
+      .details.deposit.coin_ref = "refresh-reveal-1",
+      .details.deposit.coin_idx = 0,
+      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
+      .details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":3 } ] }",
+      .details.deposit.transaction_id = 2 },
+
+    /* Test successfully spending coins from the refresh operation:
+       finally EUR:0.1 */
+    { .oc = OC_DEPOSIT,
+      .label = "refresh-deposit-refreshed-1b",
+      .expected_response_code = MHD_HTTP_OK,
+      .details.deposit.amount = "EUR:0.1",
+      .details.deposit.coin_ref = "refresh-reveal-1",
+      .details.deposit.coin_idx = 4,
+      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
+      .details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":3 } ] }",
+      .details.deposit.transaction_id = 2 },
+
+    /* Test running a failing melt operation (same operation again must fail) */
+    { .oc = OC_REFRESH_MELT,
+      .label = "refresh-melt-failing",
+      .expected_response_code = MHD_HTTP_FORBIDDEN,
+      .details.refresh_melt.melted_coins = melt_coins_1,
+      .details.refresh_melt.fresh_amounts = melt_fresh_amounts_1 },
+
+    // FIXME: also test with coin that was already melted
+    // (signature differs from coin that was deposited...)
+    /* *************** end of /refresh testing ************** */
+
+    /* ************** Test tracking API ******************** */
+    /* Try resolving a deposit's WTID, as we never triggered
+       execution of transactions, the answer should be that
+       the exchange knows about the deposit, but has no WTID yet. */
+    { .oc = OC_DEPOSIT_WTID,
+      .label = "deposit-wtid-found",
+      .expected_response_code = MHD_HTTP_ACCEPTED,
+      .details.deposit_wtid.deposit_ref = "deposit-simple" },
+    /* Try resolving a deposit's WTID for a failed deposit.
+       As the deposit failed, the answer should be that
+       the exchange does NOT know about the deposit. */
+    { .oc = OC_DEPOSIT_WTID,
+      .label = "deposit-wtid-failing",
+      .expected_response_code = MHD_HTTP_NOT_FOUND,
+      .details.deposit_wtid.deposit_ref = "deposit-double-2" },
+    /* Try resolving an undefined (all zeros) WTID; this
+       should fail as obviously the exchange didn't use that
+       WTID value for any transaction. */
+    { .oc = OC_WIRE_DEPOSITS,
+      .label = "wire-deposit-failing",
+      .expected_response_code = MHD_HTTP_NOT_FOUND },
+
+    /* TODO: trigger aggregation logic and then check the
+       cases where tracking succeeds! */
+
+    /* ************** End of tracking API testing************* */
+
+
+#endif
+
+    { .oc = OC_END }
+  };
+
+  is = GNUNET_new (struct InterpreterState);
+  is->commands = commands;
+
+  ctx = TALER_EXCHANGE_init ();
+  GNUNET_assert (NULL != ctx);
+  ctx_task = GNUNET_SCHEDULER_add_now (&context_task,
+                                       ctx);
+  exchange = TALER_EXCHANGE_connect (ctx,
+                             "http://localhost:8081",
+                             &cert_cb, is,
+                             TALER_EXCHANGE_OPTION_END);
+  GNUNET_assert (NULL != exchange);
+  shutdown_task
+    = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
+                                    (GNUNET_TIME_UNIT_SECONDS, 150),
+                                    &do_shutdown, is);
+}
+
+
+/**
+ * Main function for the testcase for the exchange API.
+ *
+ * @param argc expected to be 1
+ * @param argv expected to only contain the program name
+ */
+int
+main (int argc,
+      char * const *argv)
+{
+  struct GNUNET_OS_Process *proc;
+  struct GNUNET_OS_Process *exchanged;
+
+  GNUNET_log_setup ("test-exchange-api",
+                    "WARNING",
+                    NULL);
+  proc = GNUNET_OS_start_process (GNUNET_NO,
+                                  GNUNET_OS_INHERIT_STD_ALL,
+                                  NULL, NULL, NULL,
+                                  "taler-exchange-keyup",
+                                  "taler-exchange-keyup",
+                                  "-d", "test-exchange-home",
+                                  "-m", "test-exchange-home/master.priv",
+                                  NULL);
+  GNUNET_OS_process_wait (proc);
+  GNUNET_OS_process_destroy (proc);
+  exchanged = GNUNET_OS_start_process (GNUNET_NO,
+                                   GNUNET_OS_INHERIT_STD_ALL,
+                                   NULL, NULL, NULL,
+                                   "taler-exchange-httpd",
+                                   "taler-exchange-httpd",
+                                   "-d", "test-exchange-home",
+                                   NULL);
+  /* give child time to start and bind against the socket */
+  fprintf (stderr, "Waiting for taler-exchange-httpd to be ready");
+  do
+    {
+      fprintf (stderr, ".");
+      sleep (1);
+    }
+  while (0 != system ("wget -q -t 1 -T 1 http://127.0.0.1:8081/keys -o /dev/null -O /dev/null"));
+  fprintf (stderr, "\n");
+  result = GNUNET_SYSERR;
+  GNUNET_SCHEDULER_run (&run, NULL);
+  GNUNET_OS_process_kill (exchanged,
+                          SIGTERM);
+  GNUNET_OS_process_wait (exchanged);
+  GNUNET_OS_process_destroy (exchanged);
+  return (GNUNET_OK == result) ? 0 : 1;
+}
+
+/* end of test_exchange_api.c */
diff --git a/src/exchange-tools/Makefile.am b/src/exchange-tools/Makefile.am
new file mode 100644
index 000000000..4ffabd15d
--- /dev/null
+++ b/src/exchange-tools/Makefile.am
@@ -0,0 +1,81 @@
+# This Makefile.am is in the public domain
+AM_CPPFLAGS = -I$(top_srcdir)/src/include
+
+if USE_COVERAGE
+  AM_CFLAGS = --coverage -O0
+  XLIB = -lgcov
+endif
+
+bin_PROGRAMS = \
+  taler-auditor-sign \
+  taler-exchange-keyup \
+  taler-exchange-keycheck \
+  taler-exchange-reservemod \
+  taler-exchange-sepa \
+  taler-exchange-dbinit
+
+taler_exchange_keyup_SOURCES = \
+  taler-exchange-keyup.c
+taler_exchange_keyup_LDADD = \
+  $(LIBGCRYPT_LIBS) \
+  $(top_builddir)/src/util/libtalerutil.la \
+  $(top_builddir)/src/pq/libtalerpq.la \
+  $(top_builddir)/src/exchangedb/libtalerexchangedb.la \
+  -lgnunetutil $(XLIB)
+taler_exchange_keyup_LDFLAGS = $(POSTGRESQL_LDFLAGS)
+
+taler_auditor_sign_SOURCES = \
+  taler-auditor-sign.c
+taler_auditor_sign_LDADD = \
+  $(LIBGCRYPT_LIBS) \
+  $(top_builddir)/src/util/libtalerutil.la \
+  $(top_builddir)/src/exchangedb/libtalerexchangedb.la \
+  -lgnunetutil $(XLIB)
+
+
+taler_exchange_sepa_SOURCES = \
+  taler-exchange-sepa.c
+taler_exchange_sepa_LDADD = \
+  $(LIBGCRYPT_LIBS) \
+  $(top_builddir)/src/util/libtalerutil.la \
+  -lgnunetutil -ljansson $(XLIB)
+taler_exchange_sepa_LDFLAGS = $(POSTGRESQL_LDFLAGS)
+
+taler_exchange_keycheck_SOURCES = \
+  taler-exchange-keycheck.c
+taler_exchange_keycheck_LDADD = \
+  $(LIBGCRYPT_LIBS) \
+  $(top_builddir)/src/util/libtalerutil.la \
+  $(top_builddir)/src/exchangedb/libtalerexchangedb.la \
+  -lgnunetutil  $(XLIB)
+taler_exchange_keycheck_LDFLAGS = $(POSTGRESQL_LDFLAGS)
+
+taler_exchange_reservemod_SOURCES = \
+  taler-exchange-reservemod.c
+taler_exchange_reservemod_LDADD = \
+  $(LIBGCRYPT_LIBS) \
+  $(top_builddir)/src/util/libtalerutil.la \
+  $(top_builddir)/src/pq/libtalerpq.la \
+  $(top_builddir)/src/exchangedb/libtalerexchangedb.la \
+  -lgnunetutil -ljansson $(XLIB)
+taler_exchange_reservemod_LDFLAGS = \
+  $(POSTGRESQL_LDFLAGS)
+taler_exchange_reservemod_CPPFLAGS = \
+  -I$(top_srcdir)/src/include \
+  -I$(top_srcdir)/src/pq/ \
+  $(POSTGRESQL_CPPFLAGS)
+
+taler_exchange_dbinit_SOURCES = \
+  taler-exchange-dbinit.c
+taler_exchange_dbinit_LDADD = \
+  $(LIBGCRYPT_LIBS) \
+  $(top_builddir)/src/util/libtalerutil.la \
+  $(top_builddir)/src/pq/libtalerpq.la \
+  $(top_builddir)/src/exchangedb/libtalerexchangedb.la \
+  -lgnunetutil  $(XLIB)
+taler_exchange_dbinit_LDFLAGS = \
+  $(POSTGRESQL_LDFLAGS)
+taler_exchange_dbinit_CPPFLAGS = \
+  -I$(top_srcdir)/src/include \
+  -I$(top_srcdir)/src/pq/ \
+  $(POSTGRESQL_CPPFLAGS)
diff --git a/src/exchange-tools/taler-auditor-sign.c b/src/exchange-tools/taler-auditor-sign.c
new file mode 100644
index 000000000..e4821f411
--- /dev/null
+++ b/src/exchange-tools/taler-auditor-sign.c
@@ -0,0 +1,321 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-auditor-sign.c
+ * @brief Tool used by the auditor to sign the exchange's master key and the
+ *        denomination key(s).
+ * @author Christian Grothoff
+ */
+#include <platform.h>
+#include "taler_exchangedb_lib.h"
+
+
+/**
+ * Are we running in verbose mode?
+ */
+static int verbose;
+
+/**
+ * Filename of the auditor's private key.
+ */
+static char *auditor_key_file;
+
+/**
+ * Exchange's public key (in Crockford base32 encoding).
+ */
+static char *exchange_public_key;
+
+/**
+ * File with the Exchange's denomination keys to sign, itself
+ * signed by the Exchange's public key.
+ */
+static char *exchange_request_file;
+
+/**
+ * Where should we write the auditor's signature?
+ */
+static char *output_file;
+
+/**
+ * Master public key of the exchange.
+ */
+static struct TALER_MasterPublicKeyP master_public_key;
+
+
+/**
+ * Print denomination key details for diagnostics.
+ *
+ * @param dk denomination key to print
+ */
+static void
+print_dk (const struct TALER_DenominationKeyValidityPS *dk)
+{
+  struct TALER_Amount a;
+  char *s;
+
+  fprintf (stdout,
+           "Denomination key hash: %s\n",
+           GNUNET_h2s_full (&dk->denom_hash));
+  TALER_amount_ntoh (&a,
+                     &dk->value);
+  fprintf (stdout,
+           "Value: %s\n",
+           s = TALER_amount_to_string (&a));
+  GNUNET_free (s);
+    TALER_amount_ntoh (&a,
+                       &dk->fee_withdraw);
+  fprintf (stdout,
+           "Withdraw fee: %s\n",
+           s = TALER_amount_to_string (&a));
+  GNUNET_free (s);
+    TALER_amount_ntoh (&a,
+                       &dk->fee_deposit);
+  fprintf (stdout,
+           "Deposit fee: %s\n",
+           s = TALER_amount_to_string (&a));
+  GNUNET_free (s);
+  TALER_amount_ntoh (&a,
+                     &dk->fee_refresh);
+  fprintf (stdout,
+           "Refresh fee: %s\n",
+           s = TALER_amount_to_string (&a));
+  GNUNET_free (s);
+
+  fprintf (stdout,
+           "Validity start time: %s\n",
+           GNUNET_STRINGS_absolute_time_to_string (GNUNET_TIME_absolute_ntoh (dk->start)));
+  fprintf (stdout,
+           "Withdraw end time: %s\n",
+           GNUNET_STRINGS_absolute_time_to_string (GNUNET_TIME_absolute_ntoh (dk->expire_withdraw)));
+  fprintf (stdout,
+           "Deposit end time: %s\n",
+           GNUNET_STRINGS_absolute_time_to_string (GNUNET_TIME_absolute_ntoh (dk->expire_spend)));
+  fprintf (stdout,
+           "Legal dispute end time: %s\n",
+           GNUNET_STRINGS_absolute_time_to_string (GNUNET_TIME_absolute_ntoh (dk->expire_legal)));
+
+  fprintf (stdout,
+           "\n");
+}
+
+
+/**
+ * The main function of the taler-auditor-sign tool.  This tool is used
+ * to sign a exchange's master and denomination keys, affirming that the
+ * auditor is aware of them and will validate the exchange's database with
+ * respect to these keys.
+ *
+ * @param argc number of arguments from the command line
+ * @param argv command line arguments
+ * @return 0 ok, 1 on error
+ */
+int
+main (int argc,
+      char *const *argv)
+{
+  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+    {'a', "auditor-key", "FILE",
+     "file containing the private key of the auditor", 1,
+     &GNUNET_GETOPT_set_filename, &auditor_key_file},
+    TALER_GETOPT_OPTION_HELP ("Private key of the auditor to use for signing"),
+    {'m', "exchange-key", "KEY",
+     "public key of the exchange (Crockford base32 encoded)", 1,
+     &GNUNET_GETOPT_set_filename, &exchange_public_key},
+    {'r', "exchange-request", "FILE",
+     "set of keys the exchange requested the auditor to sign", 1,
+     &GNUNET_GETOPT_set_string, &exchange_request_file},
+    {'o', "output", "FILE",
+     "where to write our signature", 1,
+     &GNUNET_GETOPT_set_string, &output_file},
+    GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
+    GNUNET_GETOPT_OPTION_VERBOSE (&verbose),
+    GNUNET_GETOPT_OPTION_END
+  };
+  struct GNUNET_CRYPTO_EddsaPrivateKey *eddsa_priv;
+  struct TALER_AuditorSignatureP *sigs;
+  struct TALER_AuditorPublicKeyP apub;
+  struct GNUNET_DISK_FileHandle *fh;
+  struct TALER_DenominationKeyValidityPS *dks;
+  unsigned int dks_len;
+  struct TALER_ExchangeKeyValidityPS kv;
+  off_t in_size;
+  unsigned int i;
+
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_log_setup ("taler-exchange-keyup",
+                                   "WARNING",
+                                   NULL));
+  if (GNUNET_GETOPT_run ("taler-exchange-keyup",
+                         options,
+                         argc, argv) < 0)
+    return 1;
+  if (NULL == auditor_key_file)
+  {
+    fprintf (stderr,
+             "Auditor key file not given\n");
+    return 1;
+  }
+  eddsa_priv = GNUNET_CRYPTO_eddsa_key_create_from_file (auditor_key_file);
+  if (NULL == eddsa_priv)
+  {
+    fprintf (stderr,
+             "Failed to initialize auditor key from file `%s'\n",
+             auditor_key_file);
+    return 1;
+  }
+  GNUNET_CRYPTO_eddsa_key_get_public (eddsa_priv,
+                                      &apub.eddsa_pub);
+  if (NULL == exchange_public_key)
+  {
+    fprintf (stderr,
+             "Exchange public key not given\n");
+    GNUNET_free (eddsa_priv);
+    return 1;
+  }
+  if (GNUNET_OK !=
+      GNUNET_STRINGS_string_to_data (exchange_public_key,
+                                     strlen (exchange_public_key),
+                                     &master_public_key,
+                                     sizeof (master_public_key)))
+  {
+    fprintf (stderr,
+             "Public key `%s' malformed\n",
+             exchange_public_key);
+    GNUNET_free (eddsa_priv);
+    return 1;
+  }
+  if (NULL == exchange_request_file)
+  {
+    fprintf (stderr,
+             "Exchange signing request not given\n");
+    GNUNET_free (eddsa_priv);
+    return 1;
+  }
+  fh = GNUNET_DISK_file_open (exchange_request_file,
+                              GNUNET_DISK_OPEN_READ,
+                              GNUNET_DISK_PERM_NONE);
+  if (NULL == fh)
+  {
+    fprintf (stderr,
+             "Failed to open file `%s': %s\n",
+             exchange_request_file,
+             STRERROR (errno));
+    GNUNET_free (eddsa_priv);
+    return 1;
+  }
+  if (GNUNET_OK !=
+      GNUNET_DISK_file_handle_size (fh,
+                                    &in_size))
+  {
+    fprintf (stderr,
+             "Failed to obtain input file size `%s': %s\n",
+             exchange_request_file,
+             STRERROR (errno));
+    GNUNET_DISK_file_close (fh);
+    GNUNET_free (eddsa_priv);
+    return 1;
+  }
+  if (0 != (in_size % sizeof (struct TALER_DenominationKeyValidityPS)))
+  {
+    fprintf (stderr,
+             "Input file size of file `%s' is invalid\n",
+             exchange_request_file);
+    GNUNET_DISK_file_close (fh);
+    GNUNET_free (eddsa_priv);
+    return 1;
+  }
+  dks_len = in_size / sizeof (struct TALER_DenominationKeyValidityPS);
+  kv.purpose.purpose = htonl (TALER_SIGNATURE_AUDITOR_EXCHANGE_KEYS);
+  kv.purpose.size = htonl (sizeof (struct TALER_ExchangeKeyValidityPS));
+  kv.master = master_public_key;
+  dks = GNUNET_new_array (dks_len,
+                          struct TALER_DenominationKeyValidityPS);
+  sigs = GNUNET_new_array (dks_len,
+                           struct TALER_AuditorSignatureP);
+  if (in_size !=
+      GNUNET_DISK_file_read (fh,
+                             dks,
+                             in_size))
+  {
+    fprintf (stderr,
+             "Failed to read input file `%s': %s\n",
+             exchange_request_file,
+             STRERROR (errno));
+    GNUNET_DISK_file_close (fh);
+    GNUNET_free (sigs);
+    GNUNET_free (dks);
+    GNUNET_free (eddsa_priv);
+    return 1;
+  }
+  GNUNET_DISK_file_close (fh);
+  for (i=0;i<dks_len;i++)
+  {
+    struct TALER_DenominationKeyValidityPS *dk = &dks[i];
+
+    if (verbose)
+      print_dk (dk);
+    kv.start = dk->start;
+    kv.expire_withdraw = dk->expire_withdraw;
+    kv.expire_spend = dk->expire_spend;
+    kv.expire_legal = dk->expire_legal;
+    kv.value = dk->value;
+    kv.fee_withdraw = dk->fee_withdraw;
+    kv.fee_deposit = dk->fee_deposit;
+    kv.fee_refresh = dk->fee_refresh;
+    kv.denom_hash = dk->denom_hash;
+
+    /* Finally sign ... */
+    GNUNET_CRYPTO_eddsa_sign (eddsa_priv,
+                              &kv.purpose,
+                              &sigs[i].eddsa_sig);
+
+
+  }
+
+  if (NULL == output_file)
+  {
+    fprintf (stderr,
+             "Output file not given\n");
+    GNUNET_free (dks);
+    GNUNET_free (sigs);
+    GNUNET_free (eddsa_priv);
+    return 1;
+  }
+
+  /* write result to disk */
+  if (GNUNET_OK !=
+      TALER_EXCHANGEDB_auditor_write (output_file,
+                                  &apub,
+                                  sigs,
+                                  &master_public_key,
+                                  dks_len,
+                                  dks))
+  {
+    fprintf (stderr,
+             "Failed to write to file `%s': %s\n",
+             output_file,
+             STRERROR (errno));
+    GNUNET_free (sigs);
+    GNUNET_free (dks);
+    return 1;
+  }
+  GNUNET_free (sigs);
+  GNUNET_free (dks);
+  GNUNET_free (eddsa_priv);
+  return 0;
+}
+
+/* end of taler-auditor-sign.c */
diff --git a/src/exchange-tools/taler-exchange-dbinit.c b/src/exchange-tools/taler-exchange-dbinit.c
new file mode 100644
index 000000000..43a070228
--- /dev/null
+++ b/src/exchange-tools/taler-exchange-dbinit.c
@@ -0,0 +1,105 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange-tools/taler-exchange-dbinit.c
+ * @brief Create tables for the exchange database.
+ * @author Florian Dold
+ */
+#include "platform.h"
+#include <gnunet/gnunet_util_lib.h>
+#include <libpq-fe.h>
+#include "taler_exchangedb_plugin.h"
+
+/**
+ * Exchange directory with the keys.
+ */
+static char *exchange_base_dir;
+
+/**
+ * Our configuration.
+ */
+static struct GNUNET_CONFIGURATION_Handle *cfg;
+
+/**
+ * Our DB plugin.
+ */
+static struct TALER_EXCHANGEDB_Plugin *plugin;
+
+
+/**
+ * The main function of the database initialization tool.
+ * Used to initialize the Taler Exchange's database.
+ *
+ * @param argc number of arguments from the command line
+ * @param argv command line arguments
+ * @return 0 ok, 1 on error
+ */
+int
+main (int argc,
+      char *const *argv)
+{
+  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+    {'d', "exchange-dir", "DIR",
+     "exchange directory", 1,
+     &GNUNET_GETOPT_set_filename, &exchange_base_dir},
+    GNUNET_GETOPT_OPTION_HELP ("Initialize Taler Exchange database"),
+    GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
+    GNUNET_GETOPT_OPTION_END
+  };
+
+  if (GNUNET_GETOPT_run ("taler-exchange-dbinit",
+                         options,
+                         argc, argv) < 0)
+    return 1;
+
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_log_setup ("taler-exchange-dbinit",
+                                   "INFO",
+                                   NULL));
+  if (NULL == exchange_base_dir)
+  {
+    fprintf (stderr,
+             "Exchange base directory not given.\n");
+    return 1;
+  }
+  cfg = TALER_config_load (exchange_base_dir);
+  if (NULL == cfg)
+  {
+    fprintf (stderr,
+             "Failed to load exchange configuration.\n");
+    return 1;
+  }
+  if (NULL ==
+      (plugin = TALER_EXCHANGEDB_plugin_load (cfg)))
+  {
+    fprintf (stderr,
+             "Failed to initialize database plugin.\n");
+    return 1;
+  }
+  if (GNUNET_OK !=
+      plugin->create_tables (plugin->cls,
+                             GNUNET_NO))
+  {
+    fprintf (stderr,
+             "Failed to initialize database.\n");
+    TALER_EXCHANGEDB_plugin_unload (plugin);
+    return 1;
+  }
+  TALER_EXCHANGEDB_plugin_unload (plugin);
+  return 0;
+}
+
+/* end of taler-exchange-dbinit.c */
diff --git a/src/exchange-tools/taler-exchange-keycheck.c b/src/exchange-tools/taler-exchange-keycheck.c
new file mode 100644
index 000000000..d6566cd03
--- /dev/null
+++ b/src/exchange-tools/taler-exchange-keycheck.c
@@ -0,0 +1,247 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-keycheck.c
+ * @brief Check exchange keys for validity.  Reads the signing and denomination
+ *        keys from the exchange directory and checks to make sure they are
+ *        well-formed.  This is purely a diagnostic tool.
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#include <platform.h>
+#include <gnunet/gnunet_util_lib.h>
+#include "taler_exchangedb_lib.h"
+
+/**
+ * Exchange directory with the keys.
+ */
+static char *exchange_directory;
+
+/**
+ * Our configuration.
+ */
+static struct GNUNET_CONFIGURATION_Handle *kcfg;
+
+
+/**
+ * Function called on each signing key.
+ *
+ * @param cls closure (NULL)
+ * @param filename name of the file the key came from
+ * @param ski the sign key
+ * @return #GNUNET_OK to continue to iterate,
+ *  #GNUNET_NO to stop iteration with no error,
+ *  #GNUNET_SYSERR to abort iteration with error!
+ */
+static int
+signkeys_iter (void *cls,
+               const char *filename,
+               const struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP *ski)
+{
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Iterating over key `%s' for start time %s\n",
+              filename,
+              GNUNET_STRINGS_absolute_time_to_string
+              (GNUNET_TIME_absolute_ntoh (ski->issue.start)));
+
+  if (ntohl (ski->issue.purpose.size) !=
+      (sizeof (struct TALER_ExchangeSigningKeyValidityPS) -
+       offsetof (struct TALER_ExchangeSigningKeyValidityPS,
+                 purpose)))
+  {
+    fprintf (stderr,
+             "Signing key `%s' has invalid purpose size\n",
+             filename);
+    return GNUNET_SYSERR;
+  }
+  if ( (0 != GNUNET_TIME_absolute_ntoh (ski->issue.start).abs_value_us % 1000000) ||
+       (0 != GNUNET_TIME_absolute_ntoh (ski->issue.expire).abs_value_us % 1000000) ||
+       (0 != GNUNET_TIME_absolute_ntoh (ski->issue.end).abs_value_us % 1000000) )
+  {
+    fprintf (stderr,
+             "Timestamps are not multiples of a round second\n");
+    return GNUNET_SYSERR;
+  }
+
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MASTER_SIGNING_KEY_VALIDITY,
+                                  &ski->issue.purpose,
+                                  &ski->issue.signature.eddsa_signature,
+                                  &ski->issue.master_public_key.eddsa_pub))
+  {
+    fprintf (stderr,
+             "Signing key `%s' has invalid signature\n",
+             filename);
+    return GNUNET_SYSERR;
+  }
+  printf ("Signing key `%s' valid\n",
+          filename);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Check signing keys.
+ *
+ * @return #GNUNET_OK if the keys are OK
+ *         #GNUNET_NO if not
+ */
+static int
+exchange_signkeys_check ()
+{
+  if (0 > TALER_EXCHANGEDB_signing_keys_iterate (exchange_directory,
+                                       &signkeys_iter,
+                                       NULL))
+    return GNUNET_NO;
+  return GNUNET_OK;
+}
+
+
+/**
+ * Function called on each denomination key.
+ *
+ * @param cls closure (NULL)
+ * @param dki the denomination key
+ * @param alias coin alias
+ * @return #GNUNET_OK to continue to iterate,
+ *  #GNUNET_NO to stop iteration with no error,
+ *  #GNUNET_SYSERR to abort iteration with error!
+ */
+static int
+denomkeys_iter (void *cls,
+                const char *alias,
+                const struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki)
+{
+  struct GNUNET_HashCode hc;
+
+  if (ntohl (dki->issue.properties.purpose.size) !=
+      sizeof (struct TALER_DenominationKeyValidityPS))
+  {
+    fprintf (stderr,
+             "Denomination key for `%s' has invalid purpose size\n",
+             alias);
+    return GNUNET_SYSERR;
+  }
+
+  if ( (0 != GNUNET_TIME_absolute_ntoh (dki->issue.properties.start).abs_value_us % 1000000) ||
+       (0 != GNUNET_TIME_absolute_ntoh (dki->issue.properties.expire_withdraw).abs_value_us % 1000000) ||
+       (0 != GNUNET_TIME_absolute_ntoh (dki->issue.properties.expire_legal).abs_value_us % 1000000) ||
+       (0 != GNUNET_TIME_absolute_ntoh (dki->issue.properties.expire_spend).abs_value_us % 1000000) )
+  {
+    fprintf (stderr,
+             "Timestamps are not multiples of a round second\n");
+    return GNUNET_SYSERR;
+  }
+
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MASTER_DENOMINATION_KEY_VALIDITY,
+                                  &dki->issue.properties.purpose,
+                                  &dki->issue.signature.eddsa_signature,
+                                  &dki->issue.properties.master.eddsa_pub))
+  {
+    fprintf (stderr,
+             "Denomination key for `%s' has invalid signature\n",
+             alias);
+    return GNUNET_SYSERR;
+  }
+  GNUNET_CRYPTO_rsa_public_key_hash (dki->denom_pub.rsa_public_key,
+                                     &hc);
+  if (0 != memcmp (&hc,
+                   &dki->issue.properties.denom_hash,
+                   sizeof (struct GNUNET_HashCode)))
+  {
+    fprintf (stderr,
+             "Public key for `%s' does not match signature\n",
+             alias);
+    return GNUNET_SYSERR;
+  }
+  printf ("Denomination key `%s' is valid\n",
+          alias);
+
+  return GNUNET_OK;
+}
+
+
+/**
+ * Check denomination keys.
+ *
+ * @return #GNUNET_OK if the keys are OK
+ *         #GNUNET_NO if not
+ */
+static int
+exchange_denomkeys_check ()
+{
+  if (0 > TALER_EXCHANGEDB_denomination_keys_iterate (exchange_directory,
+                                                  &denomkeys_iter,
+                                                  NULL))
+    return GNUNET_NO;
+  return GNUNET_OK;
+}
+
+
+/**
+ * The main function of the keyup tool
+ *
+ * @param argc number of arguments from the command line
+ * @param argv command line arguments
+ * @return 0 ok, 1 on error
+ */
+int
+main (int argc, char *const *argv)
+{
+  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+    GNUNET_GETOPT_OPTION_HELP ("gnunet-exchange-keycheck OPTIONS"),
+    {'d', "directory", "DIRECTORY",
+     "exchange directory with keys to check", 1,
+     &GNUNET_GETOPT_set_filename, &exchange_directory},
+    GNUNET_GETOPT_OPTION_END
+  };
+
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_log_setup ("taler-exchange-keycheck",
+                                   "WARNING",
+                                   NULL));
+
+  if (GNUNET_GETOPT_run ("taler-exchange-keycheck",
+                         options,
+                         argc, argv) < 0)
+    return 1;
+  if (NULL == exchange_directory)
+  {
+    fprintf (stderr,
+             "Exchange directory not given\n");
+    return 1;
+  }
+
+  kcfg = TALER_config_load (exchange_directory);
+  if (NULL == kcfg)
+  {
+    fprintf (stderr,
+             "Failed to load exchange configuration\n");
+    return 1;
+  }
+  if ( (GNUNET_OK != exchange_signkeys_check ()) ||
+       (GNUNET_OK != exchange_denomkeys_check ()) )
+  {
+    GNUNET_CONFIGURATION_destroy (kcfg);
+    return 1;
+  }
+  GNUNET_CONFIGURATION_destroy (kcfg);
+  return 0;
+}
+
+/* end of taler-exchange-keycheck.c */
diff --git a/src/exchange-tools/taler-exchange-keyup.c b/src/exchange-tools/taler-exchange-keyup.c
new file mode 100644
index 000000000..779e3a3d3
--- /dev/null
+++ b/src/exchange-tools/taler-exchange-keyup.c
@@ -0,0 +1,1039 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-keyup.c
+ * @brief Update the exchange's keys for coins and signatures,
+ *        using the exchange's offline master key.
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#include <platform.h>
+#include "taler_exchangedb_lib.h"
+
+/**
+ * When generating filenames from a cryptographic hash, we do not use
+ * all 512 bits but cut off after this number of characters (in
+ * base32-encoding).  Base32 is 5 bit per character, and given that we
+ * have very few coin types we hash, at 100 bits the chance of
+ * collision (by accident over tiny set -- birthday paradox does not
+ * apply here!) is negligible.
+ */
+#define HASH_CUTOFF 20
+
+
+GNUNET_NETWORK_STRUCT_BEGIN
+
+/**
+ * Struct with all of the key information for a kind of coin.  Hashed
+ * to generate a unique directory name per coin type.
+ */
+struct CoinTypeNBOP
+{
+  /**
+   * How long are the signatures legally valid?
+   */
+  struct GNUNET_TIME_RelativeNBO duration_legal;
+
+  /**
+   * How long can the coin be spend?
+   */
+  struct GNUNET_TIME_RelativeNBO duration_spend;
+
+  /**
+   * How long can the coin be withdrawn (generated)?
+   */
+  struct GNUNET_TIME_RelativeNBO duration_withdraw;
+
+  /**
+   * What is the value of the coin?
+   */
+  struct TALER_AmountNBO value;
+
+  /**
+   * What is the fee charged for withdrawl?
+   */
+  struct TALER_AmountNBO fee_withdraw;
+
+  /**
+   * What is the fee charged for deposits?
+   */
+  struct TALER_AmountNBO fee_deposit;
+
+  /**
+   * What is the fee charged for melting?
+   */
+  struct TALER_AmountNBO fee_refresh;
+
+  /**
+   * Key size in NBO.
+   */
+  uint32_t rsa_keysize;
+};
+
+GNUNET_NETWORK_STRUCT_END
+
+/**
+ * Set of all of the parameters that chracterize a coin.
+ */
+struct CoinTypeParams
+{
+
+  /**
+   * How long are the signatures legally valid?  Should be
+   * significantly larger than @e duration_spend (i.e. years).
+   */
+  struct GNUNET_TIME_Relative duration_legal;
+
+
+  /**
+   * How long can the coin be spend?  Should be significantly
+   * larger than @e duration_withdraw (i.e. years).
+   */
+  struct GNUNET_TIME_Relative duration_spend;
+
+  /**
+   * How long can the coin be withdrawn (generated)?  Should be small
+   * enough to limit how many coins will be signed into existence with
+   * the same key, but large enough to still provide a reasonable
+   * anonymity set.
+   */
+  struct GNUNET_TIME_Relative duration_withdraw;
+
+  /**
+   * How much should coin creation (@e duration_withdraw) duration
+   * overlap with the next coin?  Basically, the starting time of two
+   * coins is always @e duration_withdraw - @e duration_overlap apart.
+   */
+  struct GNUNET_TIME_Relative duration_overlap;
+
+  /**
+   * What is the value of the coin?
+   */
+  struct TALER_Amount value;
+
+  /**
+   * What is the fee charged for withdrawl?
+   */
+  struct TALER_Amount fee_withdraw;
+
+  /**
+   * What is the fee charged for deposits?
+   */
+  struct TALER_Amount fee_deposit;
+
+  /**
+   * What is the fee charged for melting?
+   */
+  struct TALER_Amount fee_refresh;
+
+  /**
+   * Time at which this coin is supposed to become valid.
+   */
+  struct GNUNET_TIME_Absolute anchor;
+
+  /**
+   * Length of the RSA key in bits.
+   */
+  uint32_t rsa_keysize;
+};
+
+
+/**
+ * Filename of the master private key.
+ */
+static char *masterkeyfile;
+
+/**
+ * Filename where to write denomination key signing
+ * requests for the auditor (optional, can be NULL).
+ */
+static char *auditorrequestfile;
+
+/**
+ * Handle for writing the output for the auditor.
+ */
+static FILE *auditor_output_file;
+
+/**
+ * Director of the exchange, containing the keys.
+ */
+static char *exchange_directory;
+
+/**
+ * Time to pretend when the key update is executed.
+ */
+static char *pretend_time_str;
+
+/**
+ * Handle to the exchange's configuration
+ */
+static struct GNUNET_CONFIGURATION_Handle *kcfg;
+
+/**
+ * Time when the key update is executed.  Either the actual current time, or a
+ * pretended time.
+ */
+static struct GNUNET_TIME_Absolute now;
+
+/**
+ * Master private key of the exchange.
+ */
+static struct TALER_MasterPrivateKeyP master_priv;
+
+/**
+ * Master public key of the exchange.
+ */
+static struct TALER_MasterPublicKeyP master_public_key;
+
+/**
+ * Until what time do we provide keys?
+ */
+static struct GNUNET_TIME_Absolute lookahead_sign_stamp;
+
+
+/**
+ * Obtain the name of the directory we use to store signing
+ * keys created at time @a start.
+ *
+ * @param start time at which we create the signing key
+ * @return name of the directory we should use, basically "$EXCHANGEDIR/$TIME/";
+ *         (valid until next call to this function)
+ */
+static const char *
+get_signkey_file (struct GNUNET_TIME_Absolute start)
+{
+  static char dir[4096];
+
+  GNUNET_snprintf (dir,
+                   sizeof (dir),
+                   "%s" DIR_SEPARATOR_STR TALER_EXCHANGEDB_DIR_SIGNING_KEYS DIR_SEPARATOR_STR "%llu",
+                   exchange_directory,
+                   (unsigned long long) start.abs_value_us);
+  return dir;
+}
+
+
+/**
+ * Hash the data defining the coin type.  Exclude information that may
+ * not be the same for all instances of the coin type (i.e. the
+ * anchor, overlap).
+ *
+ * @param p coin parameters to convert to a hash
+ * @param[out] hash set to the hash matching @a p
+ */
+static void
+hash_coin_type (const struct CoinTypeParams *p,
+                struct GNUNET_HashCode *hash)
+{
+  struct CoinTypeNBOP p_nbo;
+
+  memset (&p_nbo,
+          0,
+          sizeof (struct CoinTypeNBOP));
+  p_nbo.duration_spend = GNUNET_TIME_relative_hton (p->duration_spend);
+  p_nbo.duration_legal = GNUNET_TIME_relative_hton (p->duration_legal);
+  p_nbo.duration_withdraw = GNUNET_TIME_relative_hton (p->duration_withdraw);
+  TALER_amount_hton (&p_nbo.value,
+                     &p->value);
+  TALER_amount_hton (&p_nbo.fee_withdraw,
+                     &p->fee_withdraw);
+  TALER_amount_hton (&p_nbo.fee_deposit,
+                     &p->fee_deposit);
+  TALER_amount_hton (&p_nbo.fee_refresh,
+                     &p->fee_refresh);
+  p_nbo.rsa_keysize = htonl (p->rsa_keysize);
+  GNUNET_CRYPTO_hash (&p_nbo,
+                      sizeof (struct CoinTypeNBOP),
+                      hash);
+}
+
+
+/**
+ * Obtain the name of the directory we should use to store coins of
+ * the given type.  The directory name has the format
+ * "$EXCHANGEDIR/$VALUE/$HASH/" where "$VALUE" represents the value of the
+ * coin and "$HASH" encodes all of the coin's parameters, generating a
+ * unique string for each type of coin.  Note that the "$HASH"
+ * includes neither the absolute creation time nor the key of the
+ * coin, thus the files in the subdirectory really just refer to the
+ * same type of coins, not the same coin.
+ *
+ * @param p coin parameters to convert to a directory name
+ * @return directory name (valid until next call to this function)
+ */
+static const char *
+get_cointype_dir (const struct CoinTypeParams *p)
+{
+  static char dir[4096];
+  struct GNUNET_HashCode hash;
+  char *hash_str;
+  char *val_str;
+  size_t i;
+
+  hash_coin_type (p, &hash);
+  hash_str = GNUNET_STRINGS_data_to_string_alloc (&hash,
+                                                  sizeof (struct GNUNET_HashCode));
+  GNUNET_assert (NULL != hash_str);
+  GNUNET_assert (HASH_CUTOFF <= strlen (hash_str) + 1);
+  hash_str[HASH_CUTOFF] = 0;
+
+  val_str = TALER_amount_to_string (&p->value);
+  for (i = 0; i < strlen (val_str); i++)
+    if ( (':' == val_str[i]) ||
+         ('.' == val_str[i]) )
+      val_str[i] = '_';
+
+  GNUNET_snprintf (dir,
+                   sizeof (dir),
+                   "%s" DIR_SEPARATOR_STR TALER_EXCHANGEDB_DIR_DENOMINATION_KEYS DIR_SEPARATOR_STR "%s-%s",
+                   exchange_directory,
+                   val_str,
+                   hash_str);
+  GNUNET_free (hash_str);
+  GNUNET_free (val_str);
+  return dir;
+}
+
+
+/**
+ * Obtain the name of the file we would use to store the key
+ * information for a coin of the given type @a p and validity
+ * start time @a start
+ *
+ * @param p parameters for the coin
+ * @param start when would the coin begin to be issued
+ * @return name of the file to use for this coin
+ *         (valid until next call to this function)
+ */
+static const char *
+get_cointype_file (const struct CoinTypeParams *p,
+                   struct GNUNET_TIME_Absolute start)
+{
+  static char filename[4096];
+  const char *dir;
+
+  dir = get_cointype_dir (p);
+  GNUNET_snprintf (filename,
+                   sizeof (filename),
+                   "%s" DIR_SEPARATOR_STR "%llu",
+                   dir,
+                   (unsigned long long) start.abs_value_us);
+  return filename;
+}
+
+
+/**
+ * Get the latest key file from a past run of the key generation
+ * tool.  Used to calculate the starting time for the keys we
+ * generate during this invocation.  This function is used to
+ * handle both signing keys and coin keys, as in both cases
+ * the filenames correspond to the timestamps we need.
+ *
+ * @param cls closure, a `struct GNUNET_TIME_Absolute *`, updated
+ *                     to contain the highest timestamp (below #now)
+ *                     that was found
+ * @param filename complete filename (absolute path)
+ * @return #GNUNET_OK (to continue to iterate)
+ */
+static int
+get_anchor_iter (void *cls,
+                 const char *filename)
+{
+  struct GNUNET_TIME_Absolute *anchor = cls;
+  struct GNUNET_TIME_Absolute stamp;
+  const char *base;
+  char *end = NULL;
+
+  base = GNUNET_STRINGS_get_short_name (filename);
+  stamp.abs_value_us = strtol (base,
+                               &end,
+                               10);
+  if ((NULL == end) || (0 != *end))
+  {
+    fprintf(stderr,
+            "Ignoring unexpected file `%s'.\n",
+            filename);
+    return GNUNET_OK;
+  }
+  *anchor = GNUNET_TIME_absolute_max (stamp,
+                                      *anchor);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Get the timestamp where the first new key should be generated.
+ * Relies on correctly named key files (as we do not parse them,
+ * but just look at the filenames to "guess" at their contents).
+ *
+ * @param dir directory that should contain the existing keys
+ * @param duration how long is one key valid (for signing)?
+ * @param overlap what's the overlap between the keys validity period?
+ * @param[out] anchor the timestamp where the first new key should be generated
+ */
+static void
+get_anchor (const char *dir,
+            struct GNUNET_TIME_Relative duration,
+            struct GNUNET_TIME_Relative overlap,
+            struct GNUNET_TIME_Absolute *anchor)
+{
+  GNUNET_assert (0 == duration.rel_value_us % 1000000);
+  GNUNET_assert (0 == overlap.rel_value_us % 1000000);
+  if (GNUNET_YES !=
+      GNUNET_DISK_directory_test (dir,
+                                  GNUNET_YES))
+  {
+    *anchor = now;
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "No existing keys found, starting with fresh key set.\n");
+    return;
+  }
+  *anchor = GNUNET_TIME_UNIT_ZERO_ABS;
+  if (-1 ==
+      GNUNET_DISK_directory_scan (dir,
+                                  &get_anchor_iter,
+                                  anchor))
+  {
+    *anchor = now;
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "No existing keys found, starting with fresh key set.\n");
+    return;
+  }
+
+  if ((GNUNET_TIME_absolute_add (*anchor,
+                                 duration)).abs_value_us < now.abs_value_us)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "Existing keys are way too old, starting with fresh key set.\n");
+    *anchor = now;
+  }
+  else if (anchor->abs_value_us != now.abs_value_us)
+  {
+    /* Real starting time is the last start time + duration - overlap */
+    *anchor = GNUNET_TIME_absolute_add (*anchor,
+                                        duration);
+    *anchor = GNUNET_TIME_absolute_subtract (*anchor,
+                                             overlap);
+  }
+  /* anchor is now the stamp where we need to create a new key */
+}
+
+
+/**
+ * Create a exchange signing key (for signing exchange messages, not for coins)
+ * and assert its correctness by signing it with the master key.
+ *
+ * @param start start time of the validity period for the key
+ * @param duration how long should the key be valid
+ * @param end when do all signatures by this key expire
+ * @param[out] pi set to the signing key information
+ */
+static void
+create_signkey_issue_priv (struct GNUNET_TIME_Absolute start,
+                           struct GNUNET_TIME_Relative duration,
+                           struct GNUNET_TIME_Absolute end,
+                           struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP *pi)
+{
+  struct GNUNET_CRYPTO_EddsaPrivateKey *priv;
+  struct TALER_ExchangeSigningKeyValidityPS *issue = &pi->issue;
+
+  priv = GNUNET_CRYPTO_eddsa_key_create ();
+  pi->signkey_priv.eddsa_priv = *priv;
+  GNUNET_free (priv);
+  issue->master_public_key = master_public_key;
+  issue->start = GNUNET_TIME_absolute_hton (start);
+  issue->expire = GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_add (start,
+                                                                       duration));
+  issue->end = GNUNET_TIME_absolute_hton (end);
+  GNUNET_CRYPTO_eddsa_key_get_public (&pi->signkey_priv.eddsa_priv,
+                                      &issue->signkey_pub.eddsa_pub);
+  issue->purpose.purpose = htonl (TALER_SIGNATURE_MASTER_SIGNING_KEY_VALIDITY);
+  issue->purpose.size = htonl (sizeof (struct TALER_ExchangeSigningKeyValidityPS) -
+                               offsetof (struct TALER_ExchangeSigningKeyValidityPS,
+                                         purpose));
+
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_CRYPTO_eddsa_sign (&master_priv.eddsa_priv,
+                                           &issue->purpose,
+                                           &issue->signature.eddsa_signature));
+}
+
+
+/**
+ * Generate signing keys starting from the last key found to
+ * the lookahead time.
+ *
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
+ */
+static int
+exchange_keys_update_signkeys ()
+{
+  struct GNUNET_TIME_Relative signkey_duration;
+  struct GNUNET_TIME_Relative legal_duration;
+  struct GNUNET_TIME_Absolute anchor;
+  char *signkey_dir;
+
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_time (kcfg,
+                                           "exchange_keys",
+                                           "signkey_duration",
+                                           &signkey_duration))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               "exchange_keys",
+                               "signkey_duration");
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_time (kcfg,
+                                           "exchange_keys",
+                                           "legal_duration",
+                                           &legal_duration))
+  {
+    GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
+                               "exchange_keys",
+                               "legal_duration",
+                               "fails to specify valid timeframe");
+    return GNUNET_SYSERR;
+  }
+  if (signkey_duration.rel_value_us > legal_duration.rel_value_us)
+  {
+    GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
+                               "exchange_keys",
+                               "legal_duration",
+                               "must be longer than signkey_duration");
+    return GNUNET_SYSERR;
+  }
+  TALER_round_rel_time (&signkey_duration);
+  GNUNET_asprintf (&signkey_dir,
+                   "%s" DIR_SEPARATOR_STR TALER_EXCHANGEDB_DIR_SIGNING_KEYS,
+                   exchange_directory);
+  /* make sure the directory exists */
+  if (GNUNET_OK !=
+      GNUNET_DISK_directory_create (signkey_dir))
+  {
+    fprintf (stderr,
+             "Failed to create signing key directory\n");
+    return GNUNET_SYSERR;
+  }
+
+  get_anchor (signkey_dir,
+              signkey_duration,
+              GNUNET_TIME_UNIT_ZERO /* no overlap for signing keys */,
+              &anchor);
+
+  while (anchor.abs_value_us < lookahead_sign_stamp.abs_value_us)
+  {
+    const char *skf;
+    struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP signkey_issue;
+    ssize_t nwrite;
+    struct GNUNET_TIME_Absolute end;
+
+    skf = get_signkey_file (anchor);
+    end = GNUNET_TIME_absolute_add (anchor,
+                                    legal_duration);
+    GNUNET_break (GNUNET_YES !=
+                  GNUNET_DISK_file_test (skf));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Generating signing key for %s.\n",
+                GNUNET_STRINGS_absolute_time_to_string (anchor));
+    create_signkey_issue_priv (anchor,
+                               signkey_duration,
+                               end,
+                               &signkey_issue);
+    nwrite = GNUNET_DISK_fn_write (skf,
+                                   &signkey_issue,
+                                   sizeof (struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP),
+                                   GNUNET_DISK_PERM_USER_WRITE | GNUNET_DISK_PERM_USER_READ);
+    if (sizeof (struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP) != nwrite)
+    {
+      fprintf (stderr,
+               "Failed to write to file `%s': %s\n",
+               skf,
+               STRERROR (errno));
+      return GNUNET_SYSERR;
+    }
+    anchor = GNUNET_TIME_absolute_add (anchor,
+                                       signkey_duration);
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Parse configuration for coin type parameters.  Also determines
+ * our anchor by looking at the existing coins of the same type.
+ *
+ * @param ct section in the configuration file giving the coin type parameters
+ * @param[out] params set to the coin parameters from the configuration
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR if the configuration is invalid
+ */
+static int
+get_cointype_params (const char *ct,
+                     struct CoinTypeParams *params)
+{
+  const char *dir;
+  unsigned long long rsa_keysize;
+
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_time (kcfg,
+                                           ct,
+                                           "duration_withdraw",
+                                           &params->duration_withdraw))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               ct,
+                               "duration_withdraw");
+    return GNUNET_SYSERR;
+  }
+  TALER_round_rel_time (&params->duration_withdraw);
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_time (kcfg,
+                                           ct,
+                                           "duration_spend",
+                                           &params->duration_spend))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               ct,
+                               "duration_spend");
+    return GNUNET_SYSERR;
+  }
+  TALER_round_rel_time (&params->duration_spend);
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_time (kcfg,
+                                           ct,
+                                           "duration_legal",
+                                           &params->duration_legal))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               ct,
+                               "duration_legal");
+    return GNUNET_SYSERR;
+  }
+  TALER_round_rel_time (&params->duration_legal);
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_time (kcfg,
+                                           ct,
+                                           "duration_overlap",
+                                           &params->duration_overlap))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               ct,
+                               "exchange_denom_duration_overlap");
+    return GNUNET_SYSERR;
+  }
+  TALER_round_rel_time (&params->duration_overlap);
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_number (kcfg,
+                                             ct,
+                                             "rsa_keysize",
+                                             &rsa_keysize))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               ct,
+                               "rsa_keysize");
+    return GNUNET_SYSERR;
+  }
+  if ( (rsa_keysize > 4 * 2048) ||
+       (rsa_keysize < 1024) )
+  {
+    fprintf (stderr,
+             "Given RSA keysize %llu outside of permitted range\n",
+             rsa_keysize);
+    return GNUNET_SYSERR;
+  }
+  params->rsa_keysize = (unsigned int) rsa_keysize;
+  if (GNUNET_OK !=
+      TALER_config_get_denom (kcfg,
+                              ct,
+                              "value",
+                              &params->value))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               ct,
+                               "value");
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_OK !=
+      TALER_config_get_denom (kcfg,
+                              ct,
+                              "fee_withdraw",
+                              &params->fee_withdraw))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               ct,
+                               "fee_withdraw");
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_OK !=
+      TALER_config_get_denom (kcfg,
+                              ct,
+                              "fee_deposit",
+                              &params->fee_deposit))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               ct,
+                               "fee_deposit");
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_OK !=
+      TALER_config_get_denom (kcfg,
+                              ct,
+                              "fee_refresh",
+                              &params->fee_refresh))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               ct,
+                               "fee_refresh");
+    return GNUNET_SYSERR;
+  }
+
+  dir = get_cointype_dir (params);
+  get_anchor (dir,
+              params->duration_withdraw,
+              params->duration_overlap,
+              &params->anchor);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Initialize the private and public key information structure for
+ * signing coins into existence.  Generates the private signing key
+ * and signes it together with the coin's meta data using the master
+ * signing key.
+ *
+ * @param params parameters used to initialize the @a dki
+ * @param[out] dki initialized according to @a params
+ */
+static void
+create_denomkey_issue (const struct CoinTypeParams *params,
+                       struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki)
+{
+  dki->denom_priv.rsa_private_key
+    = GNUNET_CRYPTO_rsa_private_key_create (params->rsa_keysize);
+  GNUNET_assert (NULL != dki->denom_priv.rsa_private_key);
+  dki->denom_pub.rsa_public_key
+    = GNUNET_CRYPTO_rsa_private_key_get_public (dki->denom_priv.rsa_private_key);
+  GNUNET_CRYPTO_rsa_public_key_hash (dki->denom_pub.rsa_public_key,
+                                     &dki->issue.properties.denom_hash);
+  dki->issue.properties.master = master_public_key;
+  dki->issue.properties.start = GNUNET_TIME_absolute_hton (params->anchor);
+  dki->issue.properties.expire_withdraw =
+      GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_add (params->anchor,
+                                                           params->duration_withdraw));
+  dki->issue.properties.expire_spend =
+    GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_add (params->anchor,
+                                                         params->duration_spend));
+  dki->issue.properties.expire_legal =
+    GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_add (params->anchor,
+                                                         params->duration_legal));
+  TALER_amount_hton (&dki->issue.properties.value,
+                     &params->value);
+  TALER_amount_hton (&dki->issue.properties.fee_withdraw,
+                     &params->fee_withdraw);
+  TALER_amount_hton (&dki->issue.properties.fee_deposit,
+                     &params->fee_deposit);
+  TALER_amount_hton (&dki->issue.properties.fee_refresh,
+                     &params->fee_refresh);
+  dki->issue.properties.purpose.purpose
+    = htonl (TALER_SIGNATURE_MASTER_DENOMINATION_KEY_VALIDITY);
+  dki->issue.properties.purpose.size
+    = htonl (sizeof (struct TALER_DenominationKeyValidityPS));
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_CRYPTO_eddsa_sign (&master_priv.eddsa_priv,
+                                           &dki->issue.properties.purpose,
+                                           &dki->issue.signature.eddsa_signature));
+}
+
+
+/**
+ * Generate new coin signing keys for the coin type of the given @a
+ * coin_alias.
+ *
+ * @param cls a `int *`, to be set to #GNUNET_SYSERR on failure
+ * @param coin_alias name of the coin's section in the configuration
+ */
+static void
+exchange_keys_update_cointype (void *cls,
+                           const char *coin_alias)
+{
+  int *ret = cls;
+  struct CoinTypeParams p;
+  const char *dkf;
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation denomkey_issue;
+
+  if (0 != strncasecmp (coin_alias,
+                        "coin_",
+                        strlen ("coin_")))
+    return; /* not a coin definition */
+  if (GNUNET_OK !=
+      get_cointype_params (coin_alias,
+                           &p))
+  {
+    *ret = GNUNET_SYSERR;
+    return;
+  }
+  if (GNUNET_OK !=
+      GNUNET_DISK_directory_create (get_cointype_dir (&p)))
+  {
+    *ret = GNUNET_SYSERR;
+    return;
+  }
+
+  while (p.anchor.abs_value_us < lookahead_sign_stamp.abs_value_us)
+  {
+    dkf = get_cointype_file (&p,
+                             p.anchor);
+    GNUNET_break (GNUNET_YES != GNUNET_DISK_file_test (dkf));
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Generating denomination key for type `%s', start %s at %s\n",
+                coin_alias,
+                GNUNET_STRINGS_absolute_time_to_string (p.anchor),
+                dkf);
+    create_denomkey_issue (&p,
+                           &denomkey_issue);
+    if (GNUNET_OK !=
+        TALER_EXCHANGEDB_denomination_key_write (dkf,
+                                             &denomkey_issue))
+    {
+      fprintf (stderr,
+               "Failed to write denomination key information to file `%s'.\n",
+               dkf);
+      *ret = GNUNET_SYSERR;
+      GNUNET_CRYPTO_rsa_private_key_free (denomkey_issue.denom_priv.rsa_private_key);
+      return;
+    }
+    if ( (NULL != auditor_output_file) &&
+         (sizeof (denomkey_issue.issue.properties) !=
+          fwrite (&denomkey_issue.issue.properties,
+                  sizeof (struct TALER_DenominationKeyValidityPS),
+                  1,
+                  auditor_output_file)) )
+    {
+      fprintf (stderr,
+               "Failed to write denomination key information to %s: %s\n",
+               auditorrequestfile,
+               STRERROR (errno));
+      *ret = GNUNET_SYSERR;
+      return;
+    }
+    GNUNET_CRYPTO_rsa_private_key_free (denomkey_issue.denom_priv.rsa_private_key);
+    p.anchor = GNUNET_TIME_absolute_add (p.anchor,
+                                         p.duration_spend);
+    p.anchor = GNUNET_TIME_absolute_subtract (p.anchor,
+                                              p.duration_overlap);
+  }
+}
+
+
+/**
+ * Update all of the denomination keys of the exchange.
+ *
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
+ */
+static int
+exchange_keys_update_denomkeys ()
+{
+  int ok;
+
+  ok = GNUNET_OK;
+  GNUNET_CONFIGURATION_iterate_sections (kcfg,
+                                         &exchange_keys_update_cointype,
+                                         &ok);
+  return ok;
+}
+
+
+/**
+ * The main function of the taler-exchange-keyup tool.  This tool is used
+ * to create the signing and denomination keys for the exchange.  It uses
+ * the long-term offline private key and writes the (additional) key
+ * files to the respective exchange directory (from where they can then be
+ * copied to the online server).  Note that we need (at least) the
+ * most recent generated previous keys so as to align the validity
+ * periods.
+ *
+ * @param argc number of arguments from the command line
+ * @param argv command line arguments
+ * @return 0 ok, 1 on error
+ */
+int
+main (int argc,
+      char *const *argv)
+{
+  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+    {'d', "exchange-dir", "DIR",
+     "exchange directory with keys to update", 1,
+     &GNUNET_GETOPT_set_filename, &exchange_directory},
+    TALER_GETOPT_OPTION_HELP ("Setup signing and denomination keys for a Taler exchange"),
+    {'m', "master-key", "FILE",
+     "master key file (private key)", 1,
+     &GNUNET_GETOPT_set_filename, &masterkeyfile},
+    {'o', "output", "FILE",
+     "auditor denomination key signing request file to create", 1,
+     &GNUNET_GETOPT_set_filename, &auditorrequestfile},
+    {'t', "time", "TIMESTAMP",
+     "pretend it is a different time for the update", 0,
+     &GNUNET_GETOPT_set_string, &pretend_time_str},
+    GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
+    GNUNET_GETOPT_OPTION_END
+  };
+  struct GNUNET_TIME_Relative lookahead_sign;
+  struct GNUNET_CRYPTO_EddsaPrivateKey *eddsa_priv;
+
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_log_setup ("taler-exchange-keyup",
+                                   "WARNING",
+                                   NULL));
+
+  if (GNUNET_GETOPT_run ("taler-exchange-keyup",
+                         options,
+                         argc, argv) < 0)
+    return 1;
+  if (NULL == exchange_directory)
+  {
+    fprintf (stderr,
+             "Exchange directory not given\n");
+    return 1;
+  }
+  if (NULL != pretend_time_str)
+  {
+    if (GNUNET_OK !=
+        GNUNET_STRINGS_fancy_time_to_absolute (pretend_time_str,
+                                               &now))
+    {
+      fprintf (stderr,
+               "timestamp `%s' invalid\n",
+               pretend_time_str);
+      return 1;
+    }
+  }
+  else
+  {
+    now = GNUNET_TIME_absolute_get ();
+  }
+  TALER_round_abs_time (&now);
+
+  kcfg = TALER_config_load (exchange_directory);
+  if (NULL == kcfg)
+  {
+    fprintf (stderr,
+             "Failed to load exchange configuration\n");
+    return 1;
+  }
+  if (NULL == masterkeyfile)
+  {
+    fprintf (stderr,
+             "Master key file not given\n");
+    return 1;
+  }
+  eddsa_priv = GNUNET_CRYPTO_eddsa_key_create_from_file (masterkeyfile);
+  if (NULL == eddsa_priv)
+  {
+    fprintf (stderr,
+             "Failed to initialize master key from file `%s'\n",
+             masterkeyfile);
+    return 1;
+  }
+  master_priv.eddsa_priv = *eddsa_priv;
+  GNUNET_free (eddsa_priv);
+  GNUNET_CRYPTO_eddsa_key_get_public (&master_priv.eddsa_priv,
+                                      &master_public_key.eddsa_pub);
+
+  if (NULL != auditorrequestfile)
+  {
+    auditor_output_file = FOPEN (auditorrequestfile,
+                                 "w");
+    if (NULL == auditor_output_file)
+    {
+      fprintf (stderr,
+               "Failed to open `%s' for writing: %s\n",
+               auditorrequestfile,
+               STRERROR (errno));
+      return 1;
+    }
+  }
+
+  /* check if key from file matches the one from the configuration */
+  {
+    struct GNUNET_CRYPTO_EddsaPublicKey master_public_key_from_cfg;
+
+    if (GNUNET_OK !=
+        GNUNET_CONFIGURATION_get_data (kcfg,
+                                       "exchange",
+                                       "master_public_key",
+                                       &master_public_key_from_cfg,
+                                       sizeof (struct GNUNET_CRYPTO_EddsaPublicKey)))
+    {
+      GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                                 "exchange",
+                                 "master_public_key");
+      return 1;
+    }
+    if (0 !=
+        memcmp (&master_public_key,
+                &master_public_key_from_cfg,
+                sizeof (struct GNUNET_CRYPTO_EddsaPublicKey)))
+    {
+      GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
+                                 "exchange",
+                                 "master_public_key",
+                                 _("does not match with private key"));
+      return 1;
+    }
+  }
+
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_time (kcfg,
+                                           "exchange_keys",
+                                           "lookahead_sign",
+                                           &lookahead_sign))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               "exchange_keys",
+                               "lookahead_sign");
+    return GNUNET_SYSERR;
+  }
+  if (0 == lookahead_sign.rel_value_us)
+  {
+    GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
+                               "exchange_keys",
+                               "lookahead_sign",
+                               _("must not be zero"));
+    return GNUNET_SYSERR;
+  }
+  TALER_round_rel_time (&lookahead_sign);
+  lookahead_sign_stamp = GNUNET_TIME_absolute_add (now,
+                                                   lookahead_sign);
+
+
+  /* finally, do actual work */
+  if (GNUNET_OK != exchange_keys_update_signkeys ())
+    return 1;
+
+  if (GNUNET_OK != exchange_keys_update_denomkeys ())
+    return 1;
+  if (NULL != auditor_output_file)
+  {
+    FCLOSE (auditor_output_file);
+    auditor_output_file = NULL;
+  }
+  return 0;
+}
+
+/* end of taler-exchange-keyup.c */
diff --git a/src/exchange-tools/taler-exchange-reservemod.c b/src/exchange-tools/taler-exchange-reservemod.c
new file mode 100644
index 000000000..984b7f8ee
--- /dev/null
+++ b/src/exchange-tools/taler-exchange-reservemod.c
@@ -0,0 +1,206 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-reservemod.c
+ * @brief Modify reserves.  Allows manipulation of reserve balances.
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ */
+#include "platform.h"
+#include <gnunet/gnunet_util_lib.h>
+#include <libpq-fe.h>
+#include <jansson.h>
+#include "taler_exchangedb_plugin.h"
+
+/**
+ * Director of the exchange, containing the keys.
+ */
+static char *exchange_directory;
+
+/**
+ * Handle to the exchange's configuration
+ */
+static struct GNUNET_CONFIGURATION_Handle *cfg;
+
+/**
+ * Our DB plugin.
+ */
+static struct TALER_EXCHANGEDB_Plugin *plugin;
+
+
+/**
+ * The main function of the reservemod tool
+ *
+ * @param argc number of arguments from the command line
+ * @param argv command line arguments
+ * @return 0 ok, 1 on error
+ */
+int
+main (int argc, char *const *argv)
+{
+  char *reserve_pub_str = NULL;
+  char *add_str = NULL;
+  struct TALER_Amount add_value;
+  char *details = NULL;
+  json_t *jdetails;
+  json_error_t error;
+  struct TALER_ReservePublicKeyP reserve_pub;
+  struct TALER_EXCHANGEDB_Session *session;
+  const struct GNUNET_GETOPT_CommandLineOption options[] = {
+    {'a', "add", "DENOM",
+     "value to add", 1,
+     &GNUNET_GETOPT_set_string, &add_str},
+    {'d', "exchange-dir", "DIR",
+     "exchange directory with keys to update", 1,
+     &GNUNET_GETOPT_set_filename, &exchange_directory},
+    {'D', "details", "JSON",
+     "details about the bank transaction which justify why we add this amount", 1,
+     &GNUNET_GETOPT_set_string, &details},
+    TALER_GETOPT_OPTION_HELP ("Deposit funds into a Taler reserve"),
+    {'R', "reserve", "KEY",
+     "reserve (public key) to modify", 1,
+     &GNUNET_GETOPT_set_string, &reserve_pub_str},
+    GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
+    GNUNET_GETOPT_OPTION_END
+  };
+  int ret;
+
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_log_setup ("taler-exchange-reservemod",
+                                   "WARNING",
+                                   NULL));
+
+  if (GNUNET_GETOPT_run ("taler-exchange-reservemod",
+                         options,
+                         argc, argv) < 0)
+    return 1;
+  if (NULL == exchange_directory)
+  {
+    fprintf (stderr,
+             "Exchange directory not given\n");
+    GNUNET_free_non_null (add_str);
+    GNUNET_free_non_null (details);
+    GNUNET_free_non_null (reserve_pub_str);
+    return 1;
+  }
+  if ((NULL == reserve_pub_str) ||
+      (GNUNET_OK !=
+       GNUNET_STRINGS_string_to_data (reserve_pub_str,
+                                      strlen (reserve_pub_str),
+                                      &reserve_pub,
+                                      sizeof (struct TALER_ReservePublicKeyP))))
+  {
+    fprintf (stderr,
+             "Parsing reserve key invalid\n");
+    GNUNET_free_non_null (add_str);
+    GNUNET_free_non_null (details);
+    GNUNET_free_non_null (reserve_pub_str);
+    return 1;
+  }
+  if ( (NULL == add_str) ||
+       (GNUNET_OK !=
+        TALER_string_to_amount (add_str,
+                                &add_value)) )
+  {
+    fprintf (stderr,
+             "Failed to parse currency amount `%s'\n",
+             add_str);
+    GNUNET_free_non_null (add_str);
+    GNUNET_free_non_null (details);
+    GNUNET_free_non_null (reserve_pub_str);
+    return 1;
+  }
+
+  if (NULL == details)
+  {
+    fprintf (stderr,
+             "No wiring details given (justification required)\n");
+   GNUNET_free_non_null (add_str);
+   GNUNET_free_non_null (reserve_pub_str);
+   return 1;
+  }
+
+  cfg = TALER_config_load (exchange_directory);
+  if (NULL == cfg)
+  {
+    fprintf (stderr,
+             "Failed to load exchange configuration\n");
+    GNUNET_free_non_null (add_str);
+    GNUNET_free_non_null (details);
+    GNUNET_free_non_null (reserve_pub_str);
+   return 1;
+  }
+  ret = 1;
+  if (NULL ==
+      (plugin = TALER_EXCHANGEDB_plugin_load (cfg)))
+  {
+    fprintf (stderr,
+             "Failed to initialize database plugin.\n");
+    goto cleanup;
+  }
+
+  session = plugin->get_session (plugin->cls,
+                                 GNUNET_NO);
+  if (NULL == session)
+  {
+    fprintf (stderr,
+             "Failed to initialize DB session\n");
+    goto cleanup;
+  }
+  jdetails = json_loads (details,
+                         JSON_REJECT_DUPLICATES,
+                         &error);
+  if (NULL == jdetails)
+  {
+    fprintf (stderr,
+             "Failed to parse JSON transaction details `%s': %s (%s)\n",
+             details,
+             error.text,
+             error.source);
+    goto cleanup;
+  }
+  /* FIXME: maybe allow passing timestamp via command-line? */
+  ret = plugin->reserves_in_insert (plugin->cls,
+				    session,
+				    &reserve_pub,
+				    &add_value,
+                                    GNUNET_TIME_absolute_get (),
+				    jdetails);
+  json_decref (jdetails);
+  if (GNUNET_SYSERR == ret)
+  {
+    fprintf (stderr,
+             "Failed to update reserve.\n");
+    goto cleanup;
+  }
+  if (GNUNET_NO == ret)
+  {
+    fprintf (stderr,
+             "Record exists, reserve not updated.\n");
+  }
+  ret = 0;
+ cleanup:
+  if (NULL != plugin)
+    TALER_EXCHANGEDB_plugin_unload (plugin);
+  if (NULL != cfg)
+    GNUNET_CONFIGURATION_destroy (cfg);
+  GNUNET_free_non_null (add_str);
+  GNUNET_free_non_null (details);
+  GNUNET_free_non_null (reserve_pub_str);
+  return ret;
+}
+
+/* end taler-exchange-reservemod.c */
diff --git a/src/exchange-tools/taler-exchange-sepa.c b/src/exchange-tools/taler-exchange-sepa.c
new file mode 100644
index 000000000..a3ac95436
--- /dev/null
+++ b/src/exchange-tools/taler-exchange-sepa.c
@@ -0,0 +1,163 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-sepa.c
+ * @brief Create signed response for /wire/sepa requests.
+ * @author Christian Grothoff
+ */
+#include <platform.h>
+#include <jansson.h>
+#include "taler_crypto_lib.h"
+#include "taler_signatures.h"
+
+
+/**
+ * Filename of the master private key.
+ */
+static char *masterkeyfile;
+
+/**
+ * Account holder name.
+ */
+static char *sepa_name;
+
+/**
+ * IBAN number.
+ */
+static char *iban;
+
+/**
+ * BIC number.
+ */
+static char *bic;
+
+/**
+ * Where to write the result.
+ */
+static char *output_filename;
+
+
+/**
+ * The main function of the taler-exchange-sepa tool.  This tool is used
+ * to sign the SEPA bank account details using the master key.
+ *
+ * @param argc number of arguments from the command line
+ * @param argv command line arguments
+ * @return 0 ok, 1 on error
+ */
+int
+main (int argc,
+      char *const *argv)
+{
+  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+    {'b', "bic", "BICCODE",
+     "bank BIC code", 1,
+     &GNUNET_GETOPT_set_string, &bic},
+    {'i', "iban", "IBAN",
+     "IBAN number of the account", 1,
+     &GNUNET_GETOPT_set_string, &iban},
+    {'m', "master-key", "FILE",
+     "master key file (private key)", 1,
+     &GNUNET_GETOPT_set_filename, &masterkeyfile},
+    {'n', "name", "NAME",
+     "name of the account holder", 1,
+     &GNUNET_GETOPT_set_string, &sepa_name},
+    {'o', "output", "FILE",
+     "where to write the result", 1,
+     &GNUNET_GETOPT_set_filename, &output_filename},
+    TALER_GETOPT_OPTION_HELP ("Setup /wire/sepa response"),
+    GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
+    GNUNET_GETOPT_OPTION_END
+  };
+  struct GNUNET_CRYPTO_EddsaPrivateKey *eddsa_priv;
+  struct TALER_MasterWireSepaDetailsPS wsd;
+  struct TALER_MasterSignatureP sig;
+  struct GNUNET_HashContext *hc;
+  json_t *reply;
+  char *json_str;
+
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_log_setup ("taler-exchange-sepa",
+                                   "WARNING",
+                                   NULL));
+
+  if (GNUNET_GETOPT_run ("taler-exchange-sepa",
+                         options,
+                         argc, argv) < 0)
+    return 1;
+  if (NULL == masterkeyfile)
+  {
+    fprintf (stderr,
+             "Master key file not given\n");
+    return 1;
+  }
+  eddsa_priv = GNUNET_CRYPTO_eddsa_key_create_from_file (masterkeyfile);
+  if (NULL == eddsa_priv)
+  {
+    fprintf (stderr,
+             "Failed to initialize master key from file `%s'\n",
+             masterkeyfile);
+    return 1;
+  }
+
+  /* Compute message to sign */
+  hc = GNUNET_CRYPTO_hash_context_start ();
+  GNUNET_CRYPTO_hash_context_read (hc,
+				   sepa_name,
+				   strlen (sepa_name) + 1);
+  GNUNET_CRYPTO_hash_context_read (hc,
+				   iban,
+				   strlen (iban) + 1);
+  GNUNET_CRYPTO_hash_context_read (hc,
+				   bic,
+				   strlen (bic) + 1);
+  wsd.purpose.size = htonl (sizeof (wsd));
+  wsd.purpose.purpose = htonl (TALER_SIGNATURE_MASTER_SEPA_DETAILS);
+  GNUNET_CRYPTO_hash_context_finish (hc,
+				     &wsd.h_sepa_details);
+  GNUNET_CRYPTO_eddsa_sign (eddsa_priv,
+			    &wsd.purpose,
+			    &sig.eddsa_signature);
+  GNUNET_free (eddsa_priv);
+  
+  /* build JSON message */
+  reply = json_pack ("{s:s, s:s, s:s, s:o}",
+		     "receiver_name", sepa_name,
+		     "iban", iban,
+		     "bic", bic,
+		     "sig", TALER_json_from_data (&sig,
+						  sizeof (sig)));
+  GNUNET_assert (NULL != reply);
+
+  /* dump result to stdout */
+  json_str = json_dumps (reply, JSON_INDENT(2));
+  GNUNET_assert (NULL != json_str);
+ 
+  if (NULL != output_filename)
+  {
+    fclose (stdout);
+    stdout = fopen (output_filename,
+		    "w+");
+  }
+  fprintf (stdout, 
+	   "%s",
+	   json_str);
+  fflush (stdout);
+  free (json_str);
+  return 0;
+}
+
+/* end of taler-exchange-sepa.c */
diff --git a/src/exchange/.gitignore b/src/exchange/.gitignore
new file mode 100644
index 000000000..a1e5e9aa7
--- /dev/null
+++ b/src/exchange/.gitignore
@@ -0,0 +1,6 @@
+taler-exchange-dbinit
+taler-exchange-keycheck
+taler-exchange-keyup
+taler-exchange-pursemod
+taler-exchange-reservemod
+taler-exchange-httpd
\ No newline at end of file
diff --git a/src/exchange/Makefile.am b/src/exchange/Makefile.am
new file mode 100644
index 000000000..443ac511a
--- /dev/null
+++ b/src/exchange/Makefile.am
@@ -0,0 +1,59 @@
+# This Makefile.am is in the public domain
+AM_CPPFLAGS = -I$(top_srcdir)/src/include
+
+if USE_COVERAGE
+  AM_CFLAGS = --coverage -O0
+  XLIB = -lgcov
+endif
+
+bin_PROGRAMS = \
+  taler-exchange-aggregator \
+  taler-exchange-httpd
+
+taler_exchange_aggregator_SOURCES = \
+  taler-exchange-aggregator.c
+taler_exchange_aggregator_LDADD = \
+  $(LIBGCRYPT_LIBS) \
+  $(top_builddir)/src/util/libtalerutil.la \
+  $(top_builddir)/src/wire/libtalerwire.la \
+  $(top_builddir)/src/exchangedb/libtalerexchangedb.la \
+  -ljansson \
+  -lgnunetutil
+
+taler_exchange_httpd_SOURCES = \
+  taler-exchange-httpd.c taler-exchange-httpd.h \
+  taler-exchange-httpd_admin.c taler-exchange-httpd_admin.h \
+  taler-exchange-httpd_db.c taler-exchange-httpd_db.h \
+  taler-exchange-httpd_deposit.c taler-exchange-httpd_deposit.h \
+  taler-exchange-httpd_keystate.c taler-exchange-httpd_keystate.h \
+  taler-exchange-httpd_mhd.c taler-exchange-httpd_mhd.h \
+  taler-exchange-httpd_parsing.c taler-exchange-httpd_parsing.h \
+  taler-exchange-httpd_refresh.c taler-exchange-httpd_refresh.h \
+  taler-exchange-httpd_reserve.c taler-exchange-httpd_reserve.h \
+  taler-exchange-httpd_responses.c taler-exchange-httpd_responses.h \
+  taler-exchange-httpd_tracking.c taler-exchange-httpd_tracking.h \
+  taler-exchange-httpd_wire.c taler-exchange-httpd_wire.h \
+  taler-exchange-httpd_validation.c taler-exchange-httpd_validation.h
+taler_exchange_httpd_LDADD = \
+  $(LIBGCRYPT_LIBS) \
+  $(top_builddir)/src/util/libtalerutil.la \
+  $(top_builddir)/src/exchangedb/libtalerexchangedb.la \
+  -lmicrohttpd \
+  -ljansson \
+  -lgnunetutil \
+  -lpthread
+
+if HAVE_DEVELOPER
+taler_exchange_httpd_SOURCES += \
+  taler-exchange-httpd_test.c taler-exchange-httpd_test.h
+endif
+
+check_SCRIPTS = \
+  test_taler_exchange_httpd.sh
+
+if HAVE_EXPENSIVE_TESTS
+check_SCRIPTS += \
+  test_taler_exchange_httpd_afl.sh
+endif
+
+TESTS = $(check_SCRIPTS)
diff --git a/src/mint/afl-tests/id:000000,orig:admin_add_incoming.req b/src/exchange/afl-tests/id:000000,orig:admin_add_incoming.req
index 677678b5d..677678b5d 100644
--- a/src/mint/afl-tests/id:000000,orig:admin_add_incoming.req
+++ b/src/exchange/afl-tests/id:000000,orig:admin_add_incoming.req
diff --git a/src/mint/afl-tests/id:000001,orig:deposit.req b/src/exchange/afl-tests/id:000001,orig:deposit.req
index ec490759e..ec490759e 100644
--- a/src/mint/afl-tests/id:000001,orig:deposit.req
+++ b/src/exchange/afl-tests/id:000001,orig:deposit.req
diff --git a/src/mint/afl-tests/id:000001,sig:06,src:000004,op:flip1,pos:21060 b/src/exchange/afl-tests/id:000001,sig:06,src:000004,op:flip1,pos:21060
index 6f317bf51..6f317bf51 100644
--- a/src/mint/afl-tests/id:000001,sig:06,src:000004,op:flip1,pos:21060
+++ b/src/exchange/afl-tests/id:000001,sig:06,src:000004,op:flip1,pos:21060
diff --git a/src/mint/afl-tests/id:000002,orig:keys.req b/src/exchange/afl-tests/id:000002,orig:keys.req
index a9503a864..a9503a864 100644
--- a/src/mint/afl-tests/id:000002,orig:keys.req
+++ b/src/exchange/afl-tests/id:000002,orig:keys.req
diff --git a/src/mint/afl-tests/id:000003,orig:refresh_link.req b/src/exchange/afl-tests/id:000003,orig:refresh_link.req
index acf3dff51..acf3dff51 100644
--- a/src/mint/afl-tests/id:000003,orig:refresh_link.req
+++ b/src/exchange/afl-tests/id:000003,orig:refresh_link.req
diff --git a/src/mint/afl-tests/id:000004,orig:refresh_melt.req b/src/exchange/afl-tests/id:000004,orig:refresh_melt.req
index 98b5b6389..98b5b6389 100644
--- a/src/mint/afl-tests/id:000004,orig:refresh_melt.req
+++ b/src/exchange/afl-tests/id:000004,orig:refresh_melt.req
diff --git a/src/mint/afl-tests/id:000005,orig:refresh_reveal.req b/src/exchange/afl-tests/id:000005,orig:refresh_reveal.req
index 3fb143960..3fb143960 100644
--- a/src/mint/afl-tests/id:000005,orig:refresh_reveal.req
+++ b/src/exchange/afl-tests/id:000005,orig:refresh_reveal.req
diff --git a/src/mint/afl-tests/id:000006,orig:reserve_status.req b/src/exchange/afl-tests/id:000006,orig:reserve_status.req
index 4f988f669..4f988f669 100644
--- a/src/mint/afl-tests/id:000006,orig:reserve_status.req
+++ b/src/exchange/afl-tests/id:000006,orig:reserve_status.req
diff --git a/src/mint/afl-tests/id:000007,orig:reserve_withdraw.req b/src/exchange/afl-tests/id:000007,orig:reserve_withdraw.req
index 484950250..484950250 100644
--- a/src/mint/afl-tests/id:000007,orig:reserve_withdraw.req
+++ b/src/exchange/afl-tests/id:000007,orig:reserve_withdraw.req
diff --git a/src/mint/afl-tests/id:000008,orig:wire.req b/src/exchange/afl-tests/id:000008,orig:wire.req
index a4f1d0749..a4f1d0749 100644
--- a/src/mint/afl-tests/id:000008,orig:wire.req
+++ b/src/exchange/afl-tests/id:000008,orig:wire.req
diff --git a/src/mint/afl-tests/id:000009,orig:wire_sepa.req b/src/exchange/afl-tests/id:000009,orig:wire_sepa.req
index 80d3d4619..80d3d4619 100644
--- a/src/mint/afl-tests/id:000009,orig:wire_sepa.req
+++ b/src/exchange/afl-tests/id:000009,orig:wire_sepa.req
diff --git a/src/mint/afl-tests/id:000010,orig:wire_test.req b/src/exchange/afl-tests/id:000010,orig:wire_test.req
index 684352c96..684352c96 100644
--- a/src/mint/afl-tests/id:000010,orig:wire_test.req
+++ b/src/exchange/afl-tests/id:000010,orig:wire_test.req
diff --git a/src/mint/afl-tests/id:000011,src:000000,op:flip1,pos:1,+cov b/src/exchange/afl-tests/id:000011,src:000000,op:flip1,pos:1,+cov
index 4cb4552ad..4cb4552ad 100644
--- a/src/mint/afl-tests/id:000011,src:000000,op:flip1,pos:1,+cov
+++ b/src/exchange/afl-tests/id:000011,src:000000,op:flip1,pos:1,+cov
diff --git a/src/mint/afl-tests/id:000011,src:000000,op:flip1,pos:2,+cov b/src/exchange/afl-tests/id:000011,src:000000,op:flip1,pos:2,+cov
index ffb59d7f9..ffb59d7f9 100644
--- a/src/mint/afl-tests/id:000011,src:000000,op:flip1,pos:2,+cov
+++ b/src/exchange/afl-tests/id:000011,src:000000,op:flip1,pos:2,+cov
diff --git a/src/mint/afl-tests/id:000012,src:000000,op:flip1,pos:3,+cov b/src/exchange/afl-tests/id:000012,src:000000,op:flip1,pos:3,+cov
index 801bf114d..801bf114d 100644
--- a/src/mint/afl-tests/id:000012,src:000000,op:flip1,pos:3,+cov
+++ b/src/exchange/afl-tests/id:000012,src:000000,op:flip1,pos:3,+cov
diff --git a/src/mint/afl-tests/id:000012,src:000000,op:flip1,pos:4,+cov b/src/exchange/afl-tests/id:000012,src:000000,op:flip1,pos:4,+cov
index fd3daf4c7..fd3daf4c7 100644
--- a/src/mint/afl-tests/id:000012,src:000000,op:flip1,pos:4,+cov
+++ b/src/exchange/afl-tests/id:000012,src:000000,op:flip1,pos:4,+cov
diff --git a/src/mint/afl-tests/id:000013,src:000000,op:flip1,pos:4,+cov b/src/exchange/afl-tests/id:000013,src:000000,op:flip1,pos:4,+cov
index fd3daf4c7..fd3daf4c7 100644
--- a/src/mint/afl-tests/id:000013,src:000000,op:flip1,pos:4,+cov
+++ b/src/exchange/afl-tests/id:000013,src:000000,op:flip1,pos:4,+cov
diff --git a/src/mint/afl-tests/id:000013,src:000000,op:flip1,pos:5,+cov b/src/exchange/afl-tests/id:000013,src:000000,op:flip1,pos:5,+cov
index 20e0e33e4..20e0e33e4 100644
--- a/src/mint/afl-tests/id:000013,src:000000,op:flip1,pos:5,+cov
+++ b/src/exchange/afl-tests/id:000013,src:000000,op:flip1,pos:5,+cov
diff --git a/src/mint/afl-tests/id:000014,src:000000,op:flip1,pos:5,+cov b/src/exchange/afl-tests/id:000014,src:000000,op:flip1,pos:5,+cov
index 20e0e33e4..20e0e33e4 100644
--- a/src/mint/afl-tests/id:000014,src:000000,op:flip1,pos:5,+cov
+++ b/src/exchange/afl-tests/id:000014,src:000000,op:flip1,pos:5,+cov
diff --git a/src/mint/afl-tests/id:000015,src:000000,op:flip1,pos:5,+cov b/src/exchange/afl-tests/id:000015,src:000000,op:flip1,pos:5,+cov
index 25451a5bd..25451a5bd 100644
--- a/src/mint/afl-tests/id:000015,src:000000,op:flip1,pos:5,+cov
+++ b/src/exchange/afl-tests/id:000015,src:000000,op:flip1,pos:5,+cov
diff --git a/src/mint/afl-tests/id:000015,src:000000,op:flip1,pos:8,+cov b/src/exchange/afl-tests/id:000015,src:000000,op:flip1,pos:8,+cov
index 893951bb9..893951bb9 100644
--- a/src/mint/afl-tests/id:000015,src:000000,op:flip1,pos:8,+cov
+++ b/src/exchange/afl-tests/id:000015,src:000000,op:flip1,pos:8,+cov
diff --git a/src/mint/afl-tests/id:000016,src:000000,op:flip1,pos:11 b/src/exchange/afl-tests/id:000016,src:000000,op:flip1,pos:11
index dce84ef37..dce84ef37 100644
--- a/src/mint/afl-tests/id:000016,src:000000,op:flip1,pos:11
+++ b/src/exchange/afl-tests/id:000016,src:000000,op:flip1,pos:11
diff --git a/src/mint/afl-tests/id:000016,src:000000,op:flip1,pos:5,+cov b/src/exchange/afl-tests/id:000016,src:000000,op:flip1,pos:5,+cov
index afda51803..afda51803 100644
--- a/src/mint/afl-tests/id:000016,src:000000,op:flip1,pos:5,+cov
+++ b/src/exchange/afl-tests/id:000016,src:000000,op:flip1,pos:5,+cov
diff --git a/src/mint/afl-tests/id:000017,src:000000,op:flip1,pos:13,+cov b/src/exchange/afl-tests/id:000017,src:000000,op:flip1,pos:13,+cov
index 85a02f53f..85a02f53f 100644
--- a/src/mint/afl-tests/id:000017,src:000000,op:flip1,pos:13,+cov
+++ b/src/exchange/afl-tests/id:000017,src:000000,op:flip1,pos:13,+cov
diff --git a/src/mint/afl-tests/id:000017,src:000000,op:flip1,pos:7,+cov b/src/exchange/afl-tests/id:000017,src:000000,op:flip1,pos:7,+cov
index db763284c..db763284c 100644
--- a/src/mint/afl-tests/id:000017,src:000000,op:flip1,pos:7,+cov
+++ b/src/exchange/afl-tests/id:000017,src:000000,op:flip1,pos:7,+cov
diff --git a/src/mint/afl-tests/id:000018,src:000000,op:flip1,pos:13,+cov b/src/exchange/afl-tests/id:000018,src:000000,op:flip1,pos:13,+cov
index 91ae254fb..91ae254fb 100644
--- a/src/mint/afl-tests/id:000018,src:000000,op:flip1,pos:13,+cov
+++ b/src/exchange/afl-tests/id:000018,src:000000,op:flip1,pos:13,+cov
diff --git a/src/mint/afl-tests/id:000018,src:000000,op:flip1,pos:9,+cov b/src/exchange/afl-tests/id:000018,src:000000,op:flip1,pos:9,+cov
index 626bd149d..626bd149d 100644
--- a/src/mint/afl-tests/id:000018,src:000000,op:flip1,pos:9,+cov
+++ b/src/exchange/afl-tests/id:000018,src:000000,op:flip1,pos:9,+cov
diff --git a/src/mint/afl-tests/id:000019,src:000000,op:flip1,pos:11 b/src/exchange/afl-tests/id:000019,src:000000,op:flip1,pos:11
index dce84ef37..dce84ef37 100644
--- a/src/mint/afl-tests/id:000019,src:000000,op:flip1,pos:11
+++ b/src/exchange/afl-tests/id:000019,src:000000,op:flip1,pos:11
diff --git a/src/mint/afl-tests/id:000019,src:000000,op:flip1,pos:19,+cov b/src/exchange/afl-tests/id:000019,src:000000,op:flip1,pos:19,+cov
index fa104c258..fa104c258 100644
--- a/src/mint/afl-tests/id:000019,src:000000,op:flip1,pos:19,+cov
+++ b/src/exchange/afl-tests/id:000019,src:000000,op:flip1,pos:19,+cov
diff --git a/src/mint/afl-tests/id:000020,src:000000,op:flip1,pos:12,+cov b/src/exchange/afl-tests/id:000020,src:000000,op:flip1,pos:12,+cov
index c023761dd..c023761dd 100644
--- a/src/mint/afl-tests/id:000020,src:000000,op:flip1,pos:12,+cov
+++ b/src/exchange/afl-tests/id:000020,src:000000,op:flip1,pos:12,+cov
diff --git a/src/mint/afl-tests/id:000020,src:000000,op:flip1,pos:19,+cov b/src/exchange/afl-tests/id:000020,src:000000,op:flip1,pos:19,+cov
index 52cac8707..52cac8707 100644
--- a/src/mint/afl-tests/id:000020,src:000000,op:flip1,pos:19,+cov
+++ b/src/exchange/afl-tests/id:000020,src:000000,op:flip1,pos:19,+cov
diff --git a/src/mint/afl-tests/id:000021,src:000000,op:flip1,pos:13,+cov b/src/exchange/afl-tests/id:000021,src:000000,op:flip1,pos:13,+cov
index 85a02f53f..85a02f53f 100644
--- a/src/mint/afl-tests/id:000021,src:000000,op:flip1,pos:13,+cov
+++ b/src/exchange/afl-tests/id:000021,src:000000,op:flip1,pos:13,+cov
diff --git a/src/mint/afl-tests/id:000021,src:000000,op:flip1,pos:21,+cov b/src/exchange/afl-tests/id:000021,src:000000,op:flip1,pos:21,+cov
index a9673b600..a9673b600 100644
--- a/src/mint/afl-tests/id:000021,src:000000,op:flip1,pos:21,+cov
+++ b/src/exchange/afl-tests/id:000021,src:000000,op:flip1,pos:21,+cov
diff --git a/src/mint/afl-tests/id:000022,src:000000,op:flip1,pos:17,+cov b/src/exchange/afl-tests/id:000022,src:000000,op:flip1,pos:17,+cov
index 5331d9fc1..5331d9fc1 100644
--- a/src/mint/afl-tests/id:000022,src:000000,op:flip1,pos:17,+cov
+++ b/src/exchange/afl-tests/id:000022,src:000000,op:flip1,pos:17,+cov
diff --git a/src/mint/afl-tests/id:000022,src:000000,op:flip1,pos:23,+cov b/src/exchange/afl-tests/id:000022,src:000000,op:flip1,pos:23,+cov
index c9dbbaf21..c9dbbaf21 100644
--- a/src/mint/afl-tests/id:000022,src:000000,op:flip1,pos:23,+cov
+++ b/src/exchange/afl-tests/id:000022,src:000000,op:flip1,pos:23,+cov
diff --git a/src/mint/afl-tests/id:000023,src:000000,op:flip1,pos:22,+cov b/src/exchange/afl-tests/id:000023,src:000000,op:flip1,pos:22,+cov
index 9d97068e9..9d97068e9 100644
--- a/src/mint/afl-tests/id:000023,src:000000,op:flip1,pos:22,+cov
+++ b/src/exchange/afl-tests/id:000023,src:000000,op:flip1,pos:22,+cov
diff --git a/src/mint/afl-tests/id:000023,src:000000,op:flip1,pos:24,+cov b/src/exchange/afl-tests/id:000023,src:000000,op:flip1,pos:24,+cov
index 974be1c5d..974be1c5d 100644
--- a/src/mint/afl-tests/id:000023,src:000000,op:flip1,pos:24,+cov
+++ b/src/exchange/afl-tests/id:000023,src:000000,op:flip1,pos:24,+cov
diff --git a/src/mint/afl-tests/id:000024,src:000000,op:flip1,pos:24,+cov b/src/exchange/afl-tests/id:000024,src:000000,op:flip1,pos:24,+cov
index 974be1c5d..974be1c5d 100644
--- a/src/mint/afl-tests/id:000024,src:000000,op:flip1,pos:24,+cov
+++ b/src/exchange/afl-tests/id:000024,src:000000,op:flip1,pos:24,+cov
diff --git a/src/mint/afl-tests/id:000025,src:000000,op:flip1,pos:24,+cov b/src/exchange/afl-tests/id:000025,src:000000,op:flip1,pos:24,+cov
index 2e40ec2aa..2e40ec2aa 100644
--- a/src/mint/afl-tests/id:000025,src:000000,op:flip1,pos:24,+cov
+++ b/src/exchange/afl-tests/id:000025,src:000000,op:flip1,pos:24,+cov
diff --git a/src/mint/afl-tests/id:000026,src:000000,op:flip1,pos:25,+cov b/src/exchange/afl-tests/id:000026,src:000000,op:flip1,pos:25,+cov
index 5806f8864..5806f8864 100644
--- a/src/mint/afl-tests/id:000026,src:000000,op:flip1,pos:25,+cov
+++ b/src/exchange/afl-tests/id:000026,src:000000,op:flip1,pos:25,+cov
diff --git a/src/mint/afl-tests/id:000027,src:000000,op:flip1,pos:26,+cov b/src/exchange/afl-tests/id:000027,src:000000,op:flip1,pos:26,+cov
index e469d9e6e..e469d9e6e 100644
--- a/src/mint/afl-tests/id:000027,src:000000,op:flip1,pos:26,+cov
+++ b/src/exchange/afl-tests/id:000027,src:000000,op:flip1,pos:26,+cov
diff --git a/src/mint/afl-tests/id:000028,src:000000,op:flip1,pos:26,+cov b/src/exchange/afl-tests/id:000028,src:000000,op:flip1,pos:26,+cov
index 8cc9a7213..8cc9a7213 100644
--- a/src/mint/afl-tests/id:000028,src:000000,op:flip1,pos:26,+cov
+++ b/src/exchange/afl-tests/id:000028,src:000000,op:flip1,pos:26,+cov
diff --git a/src/mint/afl-tests/id:000029,src:000000,op:flip1,pos:26,+cov b/src/exchange/afl-tests/id:000029,src:000000,op:flip1,pos:26,+cov
index 3bdae2df4..3bdae2df4 100644
--- a/src/mint/afl-tests/id:000029,src:000000,op:flip1,pos:26,+cov
+++ b/src/exchange/afl-tests/id:000029,src:000000,op:flip1,pos:26,+cov
diff --git a/src/mint/afl-tests/id:000029,src:000000,op:flip1,pos:27,+cov b/src/exchange/afl-tests/id:000029,src:000000,op:flip1,pos:27,+cov
index 8edf59d14..8edf59d14 100644
--- a/src/mint/afl-tests/id:000029,src:000000,op:flip1,pos:27,+cov
+++ b/src/exchange/afl-tests/id:000029,src:000000,op:flip1,pos:27,+cov
diff --git a/src/mint/afl-tests/id:000030,src:000000,op:flip1,pos:27 b/src/exchange/afl-tests/id:000030,src:000000,op:flip1,pos:27
index 49ca2a545..49ca2a545 100644
--- a/src/mint/afl-tests/id:000030,src:000000,op:flip1,pos:27
+++ b/src/exchange/afl-tests/id:000030,src:000000,op:flip1,pos:27
diff --git a/src/mint/afl-tests/id:000030,src:000000,op:flip1,pos:27,+cov b/src/exchange/afl-tests/id:000030,src:000000,op:flip1,pos:27,+cov
index 741e93549..741e93549 100644
--- a/src/mint/afl-tests/id:000030,src:000000,op:flip1,pos:27,+cov
+++ b/src/exchange/afl-tests/id:000030,src:000000,op:flip1,pos:27,+cov
diff --git a/src/mint/afl-tests/id:000031,src:000000,op:flip1,pos:27,+cov b/src/exchange/afl-tests/id:000031,src:000000,op:flip1,pos:27,+cov
index 66860c9d8..66860c9d8 100644
--- a/src/mint/afl-tests/id:000031,src:000000,op:flip1,pos:27,+cov
+++ b/src/exchange/afl-tests/id:000031,src:000000,op:flip1,pos:27,+cov
diff --git a/src/mint/afl-tests/id:000031,src:000000,op:flip1,pos:28,+cov b/src/exchange/afl-tests/id:000031,src:000000,op:flip1,pos:28,+cov
index 079159870..079159870 100644
--- a/src/mint/afl-tests/id:000031,src:000000,op:flip1,pos:28,+cov
+++ b/src/exchange/afl-tests/id:000031,src:000000,op:flip1,pos:28,+cov
diff --git a/src/mint/afl-tests/id:000032,src:000000,op:flip1,pos:28,+cov b/src/exchange/afl-tests/id:000032,src:000000,op:flip1,pos:28,+cov
index d8d7582bb..d8d7582bb 100644
--- a/src/mint/afl-tests/id:000032,src:000000,op:flip1,pos:28,+cov
+++ b/src/exchange/afl-tests/id:000032,src:000000,op:flip1,pos:28,+cov
diff --git a/src/mint/afl-tests/id:000032,src:000000,op:flip1,pos:30,+cov b/src/exchange/afl-tests/id:000032,src:000000,op:flip1,pos:30,+cov
index 8795b682d..8795b682d 100644
--- a/src/mint/afl-tests/id:000032,src:000000,op:flip1,pos:30,+cov
+++ b/src/exchange/afl-tests/id:000032,src:000000,op:flip1,pos:30,+cov
diff --git a/src/mint/afl-tests/id:000033,src:000000,op:flip1,pos:28,+cov b/src/exchange/afl-tests/id:000033,src:000000,op:flip1,pos:28,+cov
index 079159870..079159870 100644
--- a/src/mint/afl-tests/id:000033,src:000000,op:flip1,pos:28,+cov
+++ b/src/exchange/afl-tests/id:000033,src:000000,op:flip1,pos:28,+cov
diff --git a/src/mint/afl-tests/id:000033,src:000000,op:flip1,pos:30,+cov b/src/exchange/afl-tests/id:000033,src:000000,op:flip1,pos:30,+cov
index 4cd329de8..4cd329de8 100644
--- a/src/mint/afl-tests/id:000033,src:000000,op:flip1,pos:30,+cov
+++ b/src/exchange/afl-tests/id:000033,src:000000,op:flip1,pos:30,+cov
diff --git a/src/mint/afl-tests/id:000034,src:000000,op:flip1,pos:28,+cov b/src/exchange/afl-tests/id:000034,src:000000,op:flip1,pos:28,+cov
index 001dc6cd7..001dc6cd7 100644
--- a/src/mint/afl-tests/id:000034,src:000000,op:flip1,pos:28,+cov
+++ b/src/exchange/afl-tests/id:000034,src:000000,op:flip1,pos:28,+cov
diff --git a/src/mint/afl-tests/id:000034,src:000000,op:flip1,pos:30,+cov b/src/exchange/afl-tests/id:000034,src:000000,op:flip1,pos:30,+cov
index d10865820..d10865820 100644
--- a/src/mint/afl-tests/id:000034,src:000000,op:flip1,pos:30,+cov
+++ b/src/exchange/afl-tests/id:000034,src:000000,op:flip1,pos:30,+cov
diff --git a/src/mint/afl-tests/id:000035,src:000000,op:flip1,pos:30,+cov b/src/exchange/afl-tests/id:000035,src:000000,op:flip1,pos:30,+cov
index 0825eb253..0825eb253 100644
--- a/src/mint/afl-tests/id:000035,src:000000,op:flip1,pos:30,+cov
+++ b/src/exchange/afl-tests/id:000035,src:000000,op:flip1,pos:30,+cov
diff --git a/src/mint/afl-tests/id:000036,src:000000,op:flip1,pos:31,+cov b/src/exchange/afl-tests/id:000036,src:000000,op:flip1,pos:31,+cov
index ee5a5d37c..ee5a5d37c 100644
--- a/src/mint/afl-tests/id:000036,src:000000,op:flip1,pos:31,+cov
+++ b/src/exchange/afl-tests/id:000036,src:000000,op:flip1,pos:31,+cov
diff --git a/src/mint/afl-tests/id:000037,src:000000,op:flip1,pos:32,+cov b/src/exchange/afl-tests/id:000037,src:000000,op:flip1,pos:32,+cov
index da97248c8..da97248c8 100644
--- a/src/mint/afl-tests/id:000037,src:000000,op:flip1,pos:32,+cov
+++ b/src/exchange/afl-tests/id:000037,src:000000,op:flip1,pos:32,+cov
diff --git a/src/mint/afl-tests/id:000038,src:000000,op:flip1,pos:32 b/src/exchange/afl-tests/id:000038,src:000000,op:flip1,pos:32
index 118e79796..118e79796 100644
--- a/src/mint/afl-tests/id:000038,src:000000,op:flip1,pos:32
+++ b/src/exchange/afl-tests/id:000038,src:000000,op:flip1,pos:32
diff --git a/src/mint/afl-tests/id:000038,src:000000,op:flip1,pos:32,+cov b/src/exchange/afl-tests/id:000038,src:000000,op:flip1,pos:32,+cov
index b4394dc36..b4394dc36 100644
--- a/src/mint/afl-tests/id:000038,src:000000,op:flip1,pos:32,+cov
+++ b/src/exchange/afl-tests/id:000038,src:000000,op:flip1,pos:32,+cov
diff --git a/src/mint/afl-tests/id:000039,src:000000,op:flip1,pos:32,+cov b/src/exchange/afl-tests/id:000039,src:000000,op:flip1,pos:32,+cov
index 450ce2aa1..450ce2aa1 100644
--- a/src/mint/afl-tests/id:000039,src:000000,op:flip1,pos:32,+cov
+++ b/src/exchange/afl-tests/id:000039,src:000000,op:flip1,pos:32,+cov
diff --git a/src/mint/afl-tests/id:000039,src:000000,op:flip1,pos:34,+cov b/src/exchange/afl-tests/id:000039,src:000000,op:flip1,pos:34,+cov
index 4c6751fa1..4c6751fa1 100644
--- a/src/mint/afl-tests/id:000039,src:000000,op:flip1,pos:34,+cov
+++ b/src/exchange/afl-tests/id:000039,src:000000,op:flip1,pos:34,+cov
diff --git a/src/mint/afl-tests/id:000040,src:000000,op:flip1,pos:32,+cov b/src/exchange/afl-tests/id:000040,src:000000,op:flip1,pos:32,+cov
index 32d481622..32d481622 100644
--- a/src/mint/afl-tests/id:000040,src:000000,op:flip1,pos:32,+cov
+++ b/src/exchange/afl-tests/id:000040,src:000000,op:flip1,pos:32,+cov
diff --git a/src/mint/afl-tests/id:000040,src:000000,op:flip1,pos:34,+cov b/src/exchange/afl-tests/id:000040,src:000000,op:flip1,pos:34,+cov
index 67a5342b0..67a5342b0 100644
--- a/src/mint/afl-tests/id:000040,src:000000,op:flip1,pos:34,+cov
+++ b/src/exchange/afl-tests/id:000040,src:000000,op:flip1,pos:34,+cov
diff --git a/src/mint/afl-tests/id:000041,src:000000,op:flip1,pos:34,+cov b/src/exchange/afl-tests/id:000041,src:000000,op:flip1,pos:34,+cov
index 4c6751fa1..4c6751fa1 100644
--- a/src/mint/afl-tests/id:000041,src:000000,op:flip1,pos:34,+cov
+++ b/src/exchange/afl-tests/id:000041,src:000000,op:flip1,pos:34,+cov
diff --git a/src/mint/afl-tests/id:000041,src:000000,op:flip1,pos:36,+cov b/src/exchange/afl-tests/id:000041,src:000000,op:flip1,pos:36,+cov
index a647f780b..a647f780b 100644
--- a/src/mint/afl-tests/id:000041,src:000000,op:flip1,pos:36,+cov
+++ b/src/exchange/afl-tests/id:000041,src:000000,op:flip1,pos:36,+cov
diff --git a/src/mint/afl-tests/id:000042,src:000000,op:flip1,pos:36,+cov b/src/exchange/afl-tests/id:000042,src:000000,op:flip1,pos:36,+cov
index 3ec22972a..3ec22972a 100644
--- a/src/mint/afl-tests/id:000042,src:000000,op:flip1,pos:36,+cov
+++ b/src/exchange/afl-tests/id:000042,src:000000,op:flip1,pos:36,+cov
diff --git a/src/mint/afl-tests/id:000043,src:000000,op:flip1,pos:37,+cov b/src/exchange/afl-tests/id:000043,src:000000,op:flip1,pos:37,+cov
index a8dc5e751..a8dc5e751 100644
--- a/src/mint/afl-tests/id:000043,src:000000,op:flip1,pos:37,+cov
+++ b/src/exchange/afl-tests/id:000043,src:000000,op:flip1,pos:37,+cov
diff --git a/src/mint/afl-tests/id:000043,src:000000,op:flip1,pos:38 b/src/exchange/afl-tests/id:000043,src:000000,op:flip1,pos:38
index 7b596a2c7..7b596a2c7 100644
--- a/src/mint/afl-tests/id:000043,src:000000,op:flip1,pos:38
+++ b/src/exchange/afl-tests/id:000043,src:000000,op:flip1,pos:38
diff --git a/src/mint/afl-tests/id:000044,src:000000,op:flip1,pos:38 b/src/exchange/afl-tests/id:000044,src:000000,op:flip1,pos:38
index 7b596a2c7..7b596a2c7 100644
--- a/src/mint/afl-tests/id:000044,src:000000,op:flip1,pos:38
+++ b/src/exchange/afl-tests/id:000044,src:000000,op:flip1,pos:38
diff --git a/src/mint/afl-tests/id:000044,src:000000,op:flip1,pos:38,+cov b/src/exchange/afl-tests/id:000044,src:000000,op:flip1,pos:38,+cov
index 4ff51d8ef..4ff51d8ef 100644
--- a/src/mint/afl-tests/id:000044,src:000000,op:flip1,pos:38,+cov
+++ b/src/exchange/afl-tests/id:000044,src:000000,op:flip1,pos:38,+cov
diff --git a/src/mint/afl-tests/id:000045,src:000000,op:flip1,pos:38,+cov b/src/exchange/afl-tests/id:000045,src:000000,op:flip1,pos:38,+cov
index ef215ea3b..ef215ea3b 100644
--- a/src/mint/afl-tests/id:000045,src:000000,op:flip1,pos:38,+cov
+++ b/src/exchange/afl-tests/id:000045,src:000000,op:flip1,pos:38,+cov
diff --git a/src/mint/afl-tests/id:000045,src:000000,op:flip1,pos:39,+cov b/src/exchange/afl-tests/id:000045,src:000000,op:flip1,pos:39,+cov
index 0cee2b153..0cee2b153 100644
--- a/src/mint/afl-tests/id:000045,src:000000,op:flip1,pos:39,+cov
+++ b/src/exchange/afl-tests/id:000045,src:000000,op:flip1,pos:39,+cov
diff --git a/src/mint/afl-tests/id:000046,src:000000,op:flip1,pos:39,+cov b/src/exchange/afl-tests/id:000046,src:000000,op:flip1,pos:39,+cov
index 0cee2b153..0cee2b153 100644
--- a/src/mint/afl-tests/id:000046,src:000000,op:flip1,pos:39,+cov
+++ b/src/exchange/afl-tests/id:000046,src:000000,op:flip1,pos:39,+cov
diff --git a/src/mint/afl-tests/id:000047,src:000000,op:flip1,pos:39 b/src/exchange/afl-tests/id:000047,src:000000,op:flip1,pos:39
index efad51cd9..efad51cd9 100644
--- a/src/mint/afl-tests/id:000047,src:000000,op:flip1,pos:39
+++ b/src/exchange/afl-tests/id:000047,src:000000,op:flip1,pos:39
diff --git a/src/mint/afl-tests/id:000047,src:000000,op:flip1,pos:39,+cov b/src/exchange/afl-tests/id:000047,src:000000,op:flip1,pos:39,+cov
index 192ce6805..192ce6805 100644
--- a/src/mint/afl-tests/id:000047,src:000000,op:flip1,pos:39,+cov
+++ b/src/exchange/afl-tests/id:000047,src:000000,op:flip1,pos:39,+cov
diff --git a/src/mint/afl-tests/id:000048,src:000000,op:flip1,pos:39,+cov b/src/exchange/afl-tests/id:000048,src:000000,op:flip1,pos:39,+cov
index 192ce6805..192ce6805 100644
--- a/src/mint/afl-tests/id:000048,src:000000,op:flip1,pos:39,+cov
+++ b/src/exchange/afl-tests/id:000048,src:000000,op:flip1,pos:39,+cov
diff --git a/src/mint/afl-tests/id:000048,src:000000,op:flip1,pos:40,+cov b/src/exchange/afl-tests/id:000048,src:000000,op:flip1,pos:40,+cov
index eead8e8f8..eead8e8f8 100644
--- a/src/mint/afl-tests/id:000048,src:000000,op:flip1,pos:40,+cov
+++ b/src/exchange/afl-tests/id:000048,src:000000,op:flip1,pos:40,+cov
diff --git a/src/mint/afl-tests/id:000049,src:000000,op:flip1,pos:41,+cov b/src/exchange/afl-tests/id:000049,src:000000,op:flip1,pos:41,+cov
index cebfe49cc..cebfe49cc 100644
--- a/src/mint/afl-tests/id:000049,src:000000,op:flip1,pos:41,+cov
+++ b/src/exchange/afl-tests/id:000049,src:000000,op:flip1,pos:41,+cov
diff --git a/src/mint/afl-tests/id:000050,src:000000,op:flip1,pos:41,+cov b/src/exchange/afl-tests/id:000050,src:000000,op:flip1,pos:41,+cov
index b1b340511..b1b340511 100644
--- a/src/mint/afl-tests/id:000050,src:000000,op:flip1,pos:41,+cov
+++ b/src/exchange/afl-tests/id:000050,src:000000,op:flip1,pos:41,+cov
diff --git a/src/mint/afl-tests/id:000050,src:000000,op:flip1,pos:42,+cov b/src/exchange/afl-tests/id:000050,src:000000,op:flip1,pos:42,+cov
index a6ed1cc27..a6ed1cc27 100644
--- a/src/mint/afl-tests/id:000050,src:000000,op:flip1,pos:42,+cov
+++ b/src/exchange/afl-tests/id:000050,src:000000,op:flip1,pos:42,+cov
diff --git a/src/mint/afl-tests/id:000051,src:000000,op:flip1,pos:41,+cov b/src/exchange/afl-tests/id:000051,src:000000,op:flip1,pos:41,+cov
index 01a348c5a..01a348c5a 100644
--- a/src/mint/afl-tests/id:000051,src:000000,op:flip1,pos:41,+cov
+++ b/src/exchange/afl-tests/id:000051,src:000000,op:flip1,pos:41,+cov
diff --git a/src/mint/afl-tests/id:000051,src:000000,op:flip1,pos:47,+cov b/src/exchange/afl-tests/id:000051,src:000000,op:flip1,pos:47,+cov
index 8c63b4898..8c63b4898 100644
--- a/src/mint/afl-tests/id:000051,src:000000,op:flip1,pos:47,+cov
+++ b/src/exchange/afl-tests/id:000051,src:000000,op:flip1,pos:47,+cov
diff --git a/src/mint/afl-tests/id:000052,src:000000,op:flip1,pos:42,+cov b/src/exchange/afl-tests/id:000052,src:000000,op:flip1,pos:42,+cov
index 4fdb1b817..4fdb1b817 100644
--- a/src/mint/afl-tests/id:000052,src:000000,op:flip1,pos:42,+cov
+++ b/src/exchange/afl-tests/id:000052,src:000000,op:flip1,pos:42,+cov
diff --git a/src/mint/afl-tests/id:000052,src:000000,op:flip1,pos:47,+cov b/src/exchange/afl-tests/id:000052,src:000000,op:flip1,pos:47,+cov
index 8df30e7e2..8df30e7e2 100644
--- a/src/mint/afl-tests/id:000052,src:000000,op:flip1,pos:47,+cov
+++ b/src/exchange/afl-tests/id:000052,src:000000,op:flip1,pos:47,+cov
diff --git a/src/mint/afl-tests/id:000053,src:000000,op:flip1,pos:42,+cov b/src/exchange/afl-tests/id:000053,src:000000,op:flip1,pos:42,+cov
index f389ef560..f389ef560 100644
--- a/src/mint/afl-tests/id:000053,src:000000,op:flip1,pos:42,+cov
+++ b/src/exchange/afl-tests/id:000053,src:000000,op:flip1,pos:42,+cov
diff --git a/src/mint/afl-tests/id:000053,src:000000,op:flip1,pos:47,+cov b/src/exchange/afl-tests/id:000053,src:000000,op:flip1,pos:47,+cov
index 8b8be65ce..8b8be65ce 100644
--- a/src/mint/afl-tests/id:000053,src:000000,op:flip1,pos:47,+cov
+++ b/src/exchange/afl-tests/id:000053,src:000000,op:flip1,pos:47,+cov
diff --git a/src/mint/afl-tests/id:000054,src:000000,op:flip1,pos:43,+cov b/src/exchange/afl-tests/id:000054,src:000000,op:flip1,pos:43,+cov
index 786a4736f..786a4736f 100644
--- a/src/mint/afl-tests/id:000054,src:000000,op:flip1,pos:43,+cov
+++ b/src/exchange/afl-tests/id:000054,src:000000,op:flip1,pos:43,+cov
diff --git a/src/mint/afl-tests/id:000054,src:000000,op:flip1,pos:49,+cov b/src/exchange/afl-tests/id:000054,src:000000,op:flip1,pos:49,+cov
index b2c1febcb..b2c1febcb 100644
--- a/src/mint/afl-tests/id:000054,src:000000,op:flip1,pos:49,+cov
+++ b/src/exchange/afl-tests/id:000054,src:000000,op:flip1,pos:49,+cov
diff --git a/src/mint/afl-tests/id:000055,src:000000,op:flip1,pos:43,+cov b/src/exchange/afl-tests/id:000055,src:000000,op:flip1,pos:43,+cov
index 1f0070c32..1f0070c32 100644
--- a/src/mint/afl-tests/id:000055,src:000000,op:flip1,pos:43,+cov
+++ b/src/exchange/afl-tests/id:000055,src:000000,op:flip1,pos:43,+cov
diff --git a/src/mint/afl-tests/id:000055,src:000000,op:flip1,pos:52,+cov b/src/exchange/afl-tests/id:000055,src:000000,op:flip1,pos:52,+cov
index 16f5a9a23..16f5a9a23 100644
--- a/src/mint/afl-tests/id:000055,src:000000,op:flip1,pos:52,+cov
+++ b/src/exchange/afl-tests/id:000055,src:000000,op:flip1,pos:52,+cov
diff --git a/src/mint/afl-tests/id:000056,src:000000,op:flip1,pos:44,+cov b/src/exchange/afl-tests/id:000056,src:000000,op:flip1,pos:44,+cov
index 2c0c049af..2c0c049af 100644
--- a/src/mint/afl-tests/id:000056,src:000000,op:flip1,pos:44,+cov
+++ b/src/exchange/afl-tests/id:000056,src:000000,op:flip1,pos:44,+cov
diff --git a/src/mint/afl-tests/id:000056,src:000000,op:flip1,pos:52,+cov b/src/exchange/afl-tests/id:000056,src:000000,op:flip1,pos:52,+cov
index 5da12c78c..5da12c78c 100644
--- a/src/mint/afl-tests/id:000056,src:000000,op:flip1,pos:52,+cov
+++ b/src/exchange/afl-tests/id:000056,src:000000,op:flip1,pos:52,+cov
diff --git a/src/mint/afl-tests/id:000057,src:000000,op:flip1,pos:47,+cov b/src/exchange/afl-tests/id:000057,src:000000,op:flip1,pos:47,+cov
index 8c63b4898..8c63b4898 100644
--- a/src/mint/afl-tests/id:000057,src:000000,op:flip1,pos:47,+cov
+++ b/src/exchange/afl-tests/id:000057,src:000000,op:flip1,pos:47,+cov
diff --git a/src/mint/afl-tests/id:000057,src:000000,op:flip1,pos:54,+cov b/src/exchange/afl-tests/id:000057,src:000000,op:flip1,pos:54,+cov
index cf648c561..cf648c561 100644
--- a/src/mint/afl-tests/id:000057,src:000000,op:flip1,pos:54,+cov
+++ b/src/exchange/afl-tests/id:000057,src:000000,op:flip1,pos:54,+cov
diff --git a/src/mint/afl-tests/id:000058,src:000000,op:flip1,pos:47,+cov b/src/exchange/afl-tests/id:000058,src:000000,op:flip1,pos:47,+cov
index 9c4f77f1f..9c4f77f1f 100644
--- a/src/mint/afl-tests/id:000058,src:000000,op:flip1,pos:47,+cov
+++ b/src/exchange/afl-tests/id:000058,src:000000,op:flip1,pos:47,+cov
diff --git a/src/mint/afl-tests/id:000058,src:000000,op:flip1,pos:54,+cov b/src/exchange/afl-tests/id:000058,src:000000,op:flip1,pos:54,+cov
index 7c16c0071..7c16c0071 100644
--- a/src/mint/afl-tests/id:000058,src:000000,op:flip1,pos:54,+cov
+++ b/src/exchange/afl-tests/id:000058,src:000000,op:flip1,pos:54,+cov
diff --git a/src/mint/afl-tests/id:000059,src:000000,op:flip1,pos:48,+cov b/src/exchange/afl-tests/id:000059,src:000000,op:flip1,pos:48,+cov
index c830e88dc..c830e88dc 100644
--- a/src/mint/afl-tests/id:000059,src:000000,op:flip1,pos:48,+cov
+++ b/src/exchange/afl-tests/id:000059,src:000000,op:flip1,pos:48,+cov
diff --git a/src/mint/afl-tests/id:000059,src:000000,op:flip1,pos:55,+cov b/src/exchange/afl-tests/id:000059,src:000000,op:flip1,pos:55,+cov
index 456b76d8f..456b76d8f 100644
--- a/src/mint/afl-tests/id:000059,src:000000,op:flip1,pos:55,+cov
+++ b/src/exchange/afl-tests/id:000059,src:000000,op:flip1,pos:55,+cov
diff --git a/src/mint/afl-tests/id:000060,src:000000,op:flip1,pos:49,+cov b/src/exchange/afl-tests/id:000060,src:000000,op:flip1,pos:49,+cov
index a2b330a31..a2b330a31 100644
--- a/src/mint/afl-tests/id:000060,src:000000,op:flip1,pos:49,+cov
+++ b/src/exchange/afl-tests/id:000060,src:000000,op:flip1,pos:49,+cov
diff --git a/src/mint/afl-tests/id:000060,src:000000,op:flip1,pos:56,+cov b/src/exchange/afl-tests/id:000060,src:000000,op:flip1,pos:56,+cov
index ac1e30e4e..ac1e30e4e 100644
--- a/src/mint/afl-tests/id:000060,src:000000,op:flip1,pos:56,+cov
+++ b/src/exchange/afl-tests/id:000060,src:000000,op:flip1,pos:56,+cov
diff --git a/src/mint/afl-tests/id:000061,src:000000,op:flip1,pos:50,+cov b/src/exchange/afl-tests/id:000061,src:000000,op:flip1,pos:50,+cov
index 82aa47f06..82aa47f06 100644
--- a/src/mint/afl-tests/id:000061,src:000000,op:flip1,pos:50,+cov
+++ b/src/exchange/afl-tests/id:000061,src:000000,op:flip1,pos:50,+cov
diff --git a/src/mint/afl-tests/id:000061,src:000000,op:flip1,pos:59,+cov b/src/exchange/afl-tests/id:000061,src:000000,op:flip1,pos:59,+cov
index eb2ab1fd3..eb2ab1fd3 100644
--- a/src/mint/afl-tests/id:000061,src:000000,op:flip1,pos:59,+cov
+++ b/src/exchange/afl-tests/id:000061,src:000000,op:flip1,pos:59,+cov
diff --git a/src/mint/afl-tests/id:000062,src:000000,op:flip1,pos:51,+cov b/src/exchange/afl-tests/id:000062,src:000000,op:flip1,pos:51,+cov
index 494399d0f..494399d0f 100644
--- a/src/mint/afl-tests/id:000062,src:000000,op:flip1,pos:51,+cov
+++ b/src/exchange/afl-tests/id:000062,src:000000,op:flip1,pos:51,+cov
diff --git a/src/mint/afl-tests/id:000062,src:000000,op:flip1,pos:60,+cov b/src/exchange/afl-tests/id:000062,src:000000,op:flip1,pos:60,+cov
index 73523bbcc..73523bbcc 100644
--- a/src/mint/afl-tests/id:000062,src:000000,op:flip1,pos:60,+cov
+++ b/src/exchange/afl-tests/id:000062,src:000000,op:flip1,pos:60,+cov
diff --git a/src/mint/afl-tests/id:000063,src:000000,op:flip1,pos:54 b/src/exchange/afl-tests/id:000063,src:000000,op:flip1,pos:54
index cf648c561..cf648c561 100644
--- a/src/mint/afl-tests/id:000063,src:000000,op:flip1,pos:54
+++ b/src/exchange/afl-tests/id:000063,src:000000,op:flip1,pos:54
diff --git a/src/mint/afl-tests/id:000063,src:000000,op:flip1,pos:61,+cov b/src/exchange/afl-tests/id:000063,src:000000,op:flip1,pos:61,+cov
index 58032bd77..58032bd77 100644
--- a/src/mint/afl-tests/id:000063,src:000000,op:flip1,pos:61,+cov
+++ b/src/exchange/afl-tests/id:000063,src:000000,op:flip1,pos:61,+cov
diff --git a/src/mint/afl-tests/id:000064,src:000000,op:flip1,pos:55,+cov b/src/exchange/afl-tests/id:000064,src:000000,op:flip1,pos:55,+cov
index 456b76d8f..456b76d8f 100644
--- a/src/mint/afl-tests/id:000064,src:000000,op:flip1,pos:55,+cov
+++ b/src/exchange/afl-tests/id:000064,src:000000,op:flip1,pos:55,+cov
diff --git a/src/mint/afl-tests/id:000064,src:000000,op:flip1,pos:62,+cov b/src/exchange/afl-tests/id:000064,src:000000,op:flip1,pos:62,+cov
index 8f1e99ed4..8f1e99ed4 100644
--- a/src/mint/afl-tests/id:000064,src:000000,op:flip1,pos:62,+cov
+++ b/src/exchange/afl-tests/id:000064,src:000000,op:flip1,pos:62,+cov
diff --git a/src/mint/afl-tests/id:000065,src:000000,op:flip1,pos:55,+cov b/src/exchange/afl-tests/id:000065,src:000000,op:flip1,pos:55,+cov
index 54da3e6cf..54da3e6cf 100644
--- a/src/mint/afl-tests/id:000065,src:000000,op:flip1,pos:55,+cov
+++ b/src/exchange/afl-tests/id:000065,src:000000,op:flip1,pos:55,+cov
diff --git a/src/mint/afl-tests/id:000065,src:000000,op:flip1,pos:63,+cov b/src/exchange/afl-tests/id:000065,src:000000,op:flip1,pos:63,+cov
index 6601e27c8..6601e27c8 100644
--- a/src/mint/afl-tests/id:000065,src:000000,op:flip1,pos:63,+cov
+++ b/src/exchange/afl-tests/id:000065,src:000000,op:flip1,pos:63,+cov
diff --git a/src/mint/afl-tests/id:000066,src:000000,op:flip1,pos:56,+cov b/src/exchange/afl-tests/id:000066,src:000000,op:flip1,pos:56,+cov
index ac1e30e4e..ac1e30e4e 100644
--- a/src/mint/afl-tests/id:000066,src:000000,op:flip1,pos:56,+cov
+++ b/src/exchange/afl-tests/id:000066,src:000000,op:flip1,pos:56,+cov
diff --git a/src/mint/afl-tests/id:000066,src:000000,op:flip1,pos:63,+cov b/src/exchange/afl-tests/id:000066,src:000000,op:flip1,pos:63,+cov
index 02f7cc662..02f7cc662 100644
--- a/src/mint/afl-tests/id:000066,src:000000,op:flip1,pos:63,+cov
+++ b/src/exchange/afl-tests/id:000066,src:000000,op:flip1,pos:63,+cov
diff --git a/src/mint/afl-tests/id:000067,src:000000,op:flip1,pos:58,+cov b/src/exchange/afl-tests/id:000067,src:000000,op:flip1,pos:58,+cov
index 82b57e5f4..82b57e5f4 100644
--- a/src/mint/afl-tests/id:000067,src:000000,op:flip1,pos:58,+cov
+++ b/src/exchange/afl-tests/id:000067,src:000000,op:flip1,pos:58,+cov
diff --git a/src/mint/afl-tests/id:000067,src:000000,op:flip1,pos:65,+cov b/src/exchange/afl-tests/id:000067,src:000000,op:flip1,pos:65,+cov
index f032e2a47..f032e2a47 100644
--- a/src/mint/afl-tests/id:000067,src:000000,op:flip1,pos:65,+cov
+++ b/src/exchange/afl-tests/id:000067,src:000000,op:flip1,pos:65,+cov
diff --git a/src/mint/afl-tests/id:000068,src:000000,op:flip1,pos:60,+cov b/src/exchange/afl-tests/id:000068,src:000000,op:flip1,pos:60,+cov
index 73523bbcc..73523bbcc 100644
--- a/src/mint/afl-tests/id:000068,src:000000,op:flip1,pos:60,+cov
+++ b/src/exchange/afl-tests/id:000068,src:000000,op:flip1,pos:60,+cov
diff --git a/src/mint/afl-tests/id:000068,src:000000,op:flip1,pos:66,+cov b/src/exchange/afl-tests/id:000068,src:000000,op:flip1,pos:66,+cov
index 55e544a9e..55e544a9e 100644
--- a/src/mint/afl-tests/id:000068,src:000000,op:flip1,pos:66,+cov
+++ b/src/exchange/afl-tests/id:000068,src:000000,op:flip1,pos:66,+cov
diff --git a/src/mint/afl-tests/id:000069,src:000000,op:flip1,pos:61,+cov b/src/exchange/afl-tests/id:000069,src:000000,op:flip1,pos:61,+cov
index 58032bd77..58032bd77 100644
--- a/src/mint/afl-tests/id:000069,src:000000,op:flip1,pos:61,+cov
+++ b/src/exchange/afl-tests/id:000069,src:000000,op:flip1,pos:61,+cov
diff --git a/src/mint/afl-tests/id:000069,src:000000,op:flip1,pos:67,+cov b/src/exchange/afl-tests/id:000069,src:000000,op:flip1,pos:67,+cov
index 7576575c7..7576575c7 100644
--- a/src/mint/afl-tests/id:000069,src:000000,op:flip1,pos:67,+cov
+++ b/src/exchange/afl-tests/id:000069,src:000000,op:flip1,pos:67,+cov
diff --git a/src/mint/afl-tests/id:000070,src:000000,op:flip1,pos:62,+cov b/src/exchange/afl-tests/id:000070,src:000000,op:flip1,pos:62,+cov
index 7d09a8db2..7d09a8db2 100644
--- a/src/mint/afl-tests/id:000070,src:000000,op:flip1,pos:62,+cov
+++ b/src/exchange/afl-tests/id:000070,src:000000,op:flip1,pos:62,+cov
diff --git a/src/mint/afl-tests/id:000070,src:000000,op:flip1,pos:69,+cov b/src/exchange/afl-tests/id:000070,src:000000,op:flip1,pos:69,+cov
index c46483ddf..c46483ddf 100644
--- a/src/mint/afl-tests/id:000070,src:000000,op:flip1,pos:69,+cov
+++ b/src/exchange/afl-tests/id:000070,src:000000,op:flip1,pos:69,+cov
diff --git a/src/mint/afl-tests/id:000071,src:000000,op:flip1,pos:62,+cov b/src/exchange/afl-tests/id:000071,src:000000,op:flip1,pos:62,+cov
index 8f1e99ed4..8f1e99ed4 100644
--- a/src/mint/afl-tests/id:000071,src:000000,op:flip1,pos:62,+cov
+++ b/src/exchange/afl-tests/id:000071,src:000000,op:flip1,pos:62,+cov
diff --git a/src/mint/afl-tests/id:000071,src:000000,op:flip1,pos:74,+cov b/src/exchange/afl-tests/id:000071,src:000000,op:flip1,pos:74,+cov
index 83f03098e..83f03098e 100644
--- a/src/mint/afl-tests/id:000071,src:000000,op:flip1,pos:74,+cov
+++ b/src/exchange/afl-tests/id:000071,src:000000,op:flip1,pos:74,+cov
diff --git a/src/mint/afl-tests/id:000072,src:000000,op:flip1,pos:63,+cov b/src/exchange/afl-tests/id:000072,src:000000,op:flip1,pos:63,+cov
index 6601e27c8..6601e27c8 100644
--- a/src/mint/afl-tests/id:000072,src:000000,op:flip1,pos:63,+cov
+++ b/src/exchange/afl-tests/id:000072,src:000000,op:flip1,pos:63,+cov
diff --git a/src/mint/afl-tests/id:000072,src:000000,op:flip1,pos:76,+cov b/src/exchange/afl-tests/id:000072,src:000000,op:flip1,pos:76,+cov
index 9970eebf4..9970eebf4 100644
--- a/src/mint/afl-tests/id:000072,src:000000,op:flip1,pos:76,+cov
+++ b/src/exchange/afl-tests/id:000072,src:000000,op:flip1,pos:76,+cov
diff --git a/src/mint/afl-tests/id:000073,src:000000,op:flip1,pos:64,+cov b/src/exchange/afl-tests/id:000073,src:000000,op:flip1,pos:64,+cov
index f7dab72cf..f7dab72cf 100644
--- a/src/mint/afl-tests/id:000073,src:000000,op:flip1,pos:64,+cov
+++ b/src/exchange/afl-tests/id:000073,src:000000,op:flip1,pos:64,+cov
diff --git a/src/mint/afl-tests/id:000073,src:000000,op:flip1,pos:81,+cov b/src/exchange/afl-tests/id:000073,src:000000,op:flip1,pos:81,+cov
index 0e3095c5b..0e3095c5b 100644
--- a/src/mint/afl-tests/id:000073,src:000000,op:flip1,pos:81,+cov
+++ b/src/exchange/afl-tests/id:000073,src:000000,op:flip1,pos:81,+cov
diff --git a/src/mint/afl-tests/id:000074,src:000000,op:flip1,pos:65,+cov b/src/exchange/afl-tests/id:000074,src:000000,op:flip1,pos:65,+cov
index f032e2a47..f032e2a47 100644
--- a/src/mint/afl-tests/id:000074,src:000000,op:flip1,pos:65,+cov
+++ b/src/exchange/afl-tests/id:000074,src:000000,op:flip1,pos:65,+cov
diff --git a/src/mint/afl-tests/id:000074,src:000000,op:flip1,pos:82,+cov b/src/exchange/afl-tests/id:000074,src:000000,op:flip1,pos:82,+cov
index 22e96e268..22e96e268 100644
--- a/src/mint/afl-tests/id:000074,src:000000,op:flip1,pos:82,+cov
+++ b/src/exchange/afl-tests/id:000074,src:000000,op:flip1,pos:82,+cov
diff --git a/src/mint/afl-tests/id:000075,src:000000,op:flip1,pos:71,+cov b/src/exchange/afl-tests/id:000075,src:000000,op:flip1,pos:71,+cov
index a6c721364..a6c721364 100644
--- a/src/mint/afl-tests/id:000075,src:000000,op:flip1,pos:71,+cov
+++ b/src/exchange/afl-tests/id:000075,src:000000,op:flip1,pos:71,+cov
diff --git a/src/mint/afl-tests/id:000075,src:000000,op:flip1,pos:82,+cov b/src/exchange/afl-tests/id:000075,src:000000,op:flip1,pos:82,+cov
index eda09494e..eda09494e 100644
--- a/src/mint/afl-tests/id:000075,src:000000,op:flip1,pos:82,+cov
+++ b/src/exchange/afl-tests/id:000075,src:000000,op:flip1,pos:82,+cov
diff --git a/src/mint/afl-tests/id:000076,src:000000,op:flip1,pos:71 b/src/exchange/afl-tests/id:000076,src:000000,op:flip1,pos:71
index dba3e3724..dba3e3724 100644
--- a/src/mint/afl-tests/id:000076,src:000000,op:flip1,pos:71
+++ b/src/exchange/afl-tests/id:000076,src:000000,op:flip1,pos:71
diff --git a/src/mint/afl-tests/id:000076,src:000000,op:flip1,pos:83,+cov b/src/exchange/afl-tests/id:000076,src:000000,op:flip1,pos:83,+cov
index 0ca7b6520..0ca7b6520 100644
--- a/src/mint/afl-tests/id:000076,src:000000,op:flip1,pos:83,+cov
+++ b/src/exchange/afl-tests/id:000076,src:000000,op:flip1,pos:83,+cov
diff --git a/src/mint/afl-tests/id:000077,src:000000,op:flip1,pos:72,+cov b/src/exchange/afl-tests/id:000077,src:000000,op:flip1,pos:72,+cov
index 32f5f86e6..32f5f86e6 100644
--- a/src/mint/afl-tests/id:000077,src:000000,op:flip1,pos:72,+cov
+++ b/src/exchange/afl-tests/id:000077,src:000000,op:flip1,pos:72,+cov
diff --git a/src/mint/afl-tests/id:000077,src:000000,op:flip1,pos:85,+cov b/src/exchange/afl-tests/id:000077,src:000000,op:flip1,pos:85,+cov
index 499a159eb..499a159eb 100644
--- a/src/mint/afl-tests/id:000077,src:000000,op:flip1,pos:85,+cov
+++ b/src/exchange/afl-tests/id:000077,src:000000,op:flip1,pos:85,+cov
diff --git a/src/mint/afl-tests/id:000078,src:000000,op:flip1,pos:73,+cov b/src/exchange/afl-tests/id:000078,src:000000,op:flip1,pos:73,+cov
index 1eb904938..1eb904938 100644
--- a/src/mint/afl-tests/id:000078,src:000000,op:flip1,pos:73,+cov
+++ b/src/exchange/afl-tests/id:000078,src:000000,op:flip1,pos:73,+cov
diff --git a/src/mint/afl-tests/id:000078,src:000000,op:flip1,pos:87,+cov b/src/exchange/afl-tests/id:000078,src:000000,op:flip1,pos:87,+cov
index f9553ca12..f9553ca12 100644
--- a/src/mint/afl-tests/id:000078,src:000000,op:flip1,pos:87,+cov
+++ b/src/exchange/afl-tests/id:000078,src:000000,op:flip1,pos:87,+cov
diff --git a/src/mint/afl-tests/id:000079,src:000000,op:flip1,pos:74,+cov b/src/exchange/afl-tests/id:000079,src:000000,op:flip1,pos:74,+cov
index 83f03098e..83f03098e 100644
--- a/src/mint/afl-tests/id:000079,src:000000,op:flip1,pos:74,+cov
+++ b/src/exchange/afl-tests/id:000079,src:000000,op:flip1,pos:74,+cov
diff --git a/src/mint/afl-tests/id:000079,src:000000,op:flip1,pos:87,+cov b/src/exchange/afl-tests/id:000079,src:000000,op:flip1,pos:87,+cov
index f8c7d5710..f8c7d5710 100644
--- a/src/mint/afl-tests/id:000079,src:000000,op:flip1,pos:87,+cov
+++ b/src/exchange/afl-tests/id:000079,src:000000,op:flip1,pos:87,+cov
diff --git a/src/mint/afl-tests/id:000080,src:000000,op:flip1,pos:75,+cov b/src/exchange/afl-tests/id:000080,src:000000,op:flip1,pos:75,+cov
index 5e2b2b9b7..5e2b2b9b7 100644
--- a/src/mint/afl-tests/id:000080,src:000000,op:flip1,pos:75,+cov
+++ b/src/exchange/afl-tests/id:000080,src:000000,op:flip1,pos:75,+cov
diff --git a/src/mint/afl-tests/id:000080,src:000000,op:flip1,pos:87,+cov b/src/exchange/afl-tests/id:000080,src:000000,op:flip1,pos:87,+cov
index 32a24e382..32a24e382 100644
--- a/src/mint/afl-tests/id:000080,src:000000,op:flip1,pos:87,+cov
+++ b/src/exchange/afl-tests/id:000080,src:000000,op:flip1,pos:87,+cov
diff --git a/src/mint/afl-tests/id:000081,src:000000,op:flip1,pos:75,+cov b/src/exchange/afl-tests/id:000081,src:000000,op:flip1,pos:75,+cov
index 4502212cd..4502212cd 100644
--- a/src/mint/afl-tests/id:000081,src:000000,op:flip1,pos:75,+cov
+++ b/src/exchange/afl-tests/id:000081,src:000000,op:flip1,pos:75,+cov
diff --git a/src/mint/afl-tests/id:000081,src:000000,op:flip1,pos:90,+cov b/src/exchange/afl-tests/id:000081,src:000000,op:flip1,pos:90,+cov
index 3b63b93a1..3b63b93a1 100644
--- a/src/mint/afl-tests/id:000081,src:000000,op:flip1,pos:90,+cov
+++ b/src/exchange/afl-tests/id:000081,src:000000,op:flip1,pos:90,+cov
diff --git a/src/mint/afl-tests/id:000082,src:000000,op:flip1,pos:76,+cov b/src/exchange/afl-tests/id:000082,src:000000,op:flip1,pos:76,+cov
index 10625de92..10625de92 100644
--- a/src/mint/afl-tests/id:000082,src:000000,op:flip1,pos:76,+cov
+++ b/src/exchange/afl-tests/id:000082,src:000000,op:flip1,pos:76,+cov
diff --git a/src/mint/afl-tests/id:000082,src:000000,op:flip1,pos:92,+cov b/src/exchange/afl-tests/id:000082,src:000000,op:flip1,pos:92,+cov
index ce1c543de..ce1c543de 100644
--- a/src/mint/afl-tests/id:000082,src:000000,op:flip1,pos:92,+cov
+++ b/src/exchange/afl-tests/id:000082,src:000000,op:flip1,pos:92,+cov
diff --git a/src/mint/afl-tests/id:000083,src:000000,op:flip1,pos:78,+cov b/src/exchange/afl-tests/id:000083,src:000000,op:flip1,pos:78,+cov
index 2c98ec508..2c98ec508 100644
--- a/src/mint/afl-tests/id:000083,src:000000,op:flip1,pos:78,+cov
+++ b/src/exchange/afl-tests/id:000083,src:000000,op:flip1,pos:78,+cov
diff --git a/src/mint/afl-tests/id:000083,src:000000,op:flip1,pos:93,+cov b/src/exchange/afl-tests/id:000083,src:000000,op:flip1,pos:93,+cov
index d716cdbf1..d716cdbf1 100644
--- a/src/mint/afl-tests/id:000083,src:000000,op:flip1,pos:93,+cov
+++ b/src/exchange/afl-tests/id:000083,src:000000,op:flip1,pos:93,+cov
diff --git a/src/mint/afl-tests/id:000084,src:000000,op:flip1,pos:80,+cov b/src/exchange/afl-tests/id:000084,src:000000,op:flip1,pos:80,+cov
index daa253035..daa253035 100644
--- a/src/mint/afl-tests/id:000084,src:000000,op:flip1,pos:80,+cov
+++ b/src/exchange/afl-tests/id:000084,src:000000,op:flip1,pos:80,+cov
diff --git a/src/mint/afl-tests/id:000084,src:000000,op:flip1,pos:95,+cov b/src/exchange/afl-tests/id:000084,src:000000,op:flip1,pos:95,+cov
index aa123c67d..aa123c67d 100644
--- a/src/mint/afl-tests/id:000084,src:000000,op:flip1,pos:95,+cov
+++ b/src/exchange/afl-tests/id:000084,src:000000,op:flip1,pos:95,+cov
diff --git a/src/mint/afl-tests/id:000085,src:000000,op:flip1,pos:80,+cov b/src/exchange/afl-tests/id:000085,src:000000,op:flip1,pos:80,+cov
index 027d74b3e..027d74b3e 100644
--- a/src/mint/afl-tests/id:000085,src:000000,op:flip1,pos:80,+cov
+++ b/src/exchange/afl-tests/id:000085,src:000000,op:flip1,pos:80,+cov
diff --git a/src/mint/afl-tests/id:000085,src:000000,op:flip1,pos:95,+cov b/src/exchange/afl-tests/id:000085,src:000000,op:flip1,pos:95,+cov
index 3e2e8ef82..3e2e8ef82 100644
--- a/src/mint/afl-tests/id:000085,src:000000,op:flip1,pos:95,+cov
+++ b/src/exchange/afl-tests/id:000085,src:000000,op:flip1,pos:95,+cov
diff --git a/src/mint/afl-tests/id:000086,src:000000,op:flip1,pos:81,+cov b/src/exchange/afl-tests/id:000086,src:000000,op:flip1,pos:81,+cov
index 33755bbf0..33755bbf0 100644
--- a/src/mint/afl-tests/id:000086,src:000000,op:flip1,pos:81,+cov
+++ b/src/exchange/afl-tests/id:000086,src:000000,op:flip1,pos:81,+cov
diff --git a/src/mint/afl-tests/id:000086,src:000000,op:flip1,pos:96,+cov b/src/exchange/afl-tests/id:000086,src:000000,op:flip1,pos:96,+cov
index 66a826aa6..66a826aa6 100644
--- a/src/mint/afl-tests/id:000086,src:000000,op:flip1,pos:96,+cov
+++ b/src/exchange/afl-tests/id:000086,src:000000,op:flip1,pos:96,+cov
diff --git a/src/mint/afl-tests/id:000087,src:000000,op:flip1,pos:82,+cov b/src/exchange/afl-tests/id:000087,src:000000,op:flip1,pos:82,+cov
index ed126f923..ed126f923 100644
--- a/src/mint/afl-tests/id:000087,src:000000,op:flip1,pos:82,+cov
+++ b/src/exchange/afl-tests/id:000087,src:000000,op:flip1,pos:82,+cov
diff --git a/src/mint/afl-tests/id:000087,src:000000,op:flip1,pos:96,+cov b/src/exchange/afl-tests/id:000087,src:000000,op:flip1,pos:96,+cov
index fb1ee5046..fb1ee5046 100644
--- a/src/mint/afl-tests/id:000087,src:000000,op:flip1,pos:96,+cov
+++ b/src/exchange/afl-tests/id:000087,src:000000,op:flip1,pos:96,+cov
diff --git a/src/mint/afl-tests/id:000088,src:000000,op:flip1,pos:100,+cov b/src/exchange/afl-tests/id:000088,src:000000,op:flip1,pos:100,+cov
index f3f163262..f3f163262 100644
--- a/src/mint/afl-tests/id:000088,src:000000,op:flip1,pos:100,+cov
+++ b/src/exchange/afl-tests/id:000088,src:000000,op:flip1,pos:100,+cov
diff --git a/src/mint/afl-tests/id:000088,src:000000,op:flip1,pos:82,+cov b/src/exchange/afl-tests/id:000088,src:000000,op:flip1,pos:82,+cov
index 09ad95d46..09ad95d46 100644
--- a/src/mint/afl-tests/id:000088,src:000000,op:flip1,pos:82,+cov
+++ b/src/exchange/afl-tests/id:000088,src:000000,op:flip1,pos:82,+cov
diff --git a/src/mint/afl-tests/id:000089,src:000000,op:flip1,pos:105 b/src/exchange/afl-tests/id:000089,src:000000,op:flip1,pos:105
index c6f988227..c6f988227 100644
--- a/src/mint/afl-tests/id:000089,src:000000,op:flip1,pos:105
+++ b/src/exchange/afl-tests/id:000089,src:000000,op:flip1,pos:105
diff --git a/src/mint/afl-tests/id:000089,src:000000,op:flip1,pos:84,+cov b/src/exchange/afl-tests/id:000089,src:000000,op:flip1,pos:84,+cov
index ef0b4155b..ef0b4155b 100644
--- a/src/mint/afl-tests/id:000089,src:000000,op:flip1,pos:84,+cov
+++ b/src/exchange/afl-tests/id:000089,src:000000,op:flip1,pos:84,+cov
diff --git a/src/mint/afl-tests/id:000090,src:000000,op:flip1,pos:113,+cov b/src/exchange/afl-tests/id:000090,src:000000,op:flip1,pos:113,+cov
index b628943bc..b628943bc 100644
--- a/src/mint/afl-tests/id:000090,src:000000,op:flip1,pos:113,+cov
+++ b/src/exchange/afl-tests/id:000090,src:000000,op:flip1,pos:113,+cov
diff --git a/src/mint/afl-tests/id:000090,src:000000,op:flip1,pos:84,+cov b/src/exchange/afl-tests/id:000090,src:000000,op:flip1,pos:84,+cov
index 0c26f752d..0c26f752d 100644
--- a/src/mint/afl-tests/id:000090,src:000000,op:flip1,pos:84,+cov
+++ b/src/exchange/afl-tests/id:000090,src:000000,op:flip1,pos:84,+cov
diff --git a/src/mint/afl-tests/id:000091,src:000000,op:flip1,pos:114,+cov b/src/exchange/afl-tests/id:000091,src:000000,op:flip1,pos:114,+cov
index 4529026c6..4529026c6 100644
--- a/src/mint/afl-tests/id:000091,src:000000,op:flip1,pos:114,+cov
+++ b/src/exchange/afl-tests/id:000091,src:000000,op:flip1,pos:114,+cov
diff --git a/src/mint/afl-tests/id:000091,src:000000,op:flip1,pos:91,+cov b/src/exchange/afl-tests/id:000091,src:000000,op:flip1,pos:91,+cov
index ea6ec8e19..ea6ec8e19 100644
--- a/src/mint/afl-tests/id:000091,src:000000,op:flip1,pos:91,+cov
+++ b/src/exchange/afl-tests/id:000091,src:000000,op:flip1,pos:91,+cov
diff --git a/src/mint/afl-tests/id:000092,src:000000,op:flip1,pos:121,+cov b/src/exchange/afl-tests/id:000092,src:000000,op:flip1,pos:121,+cov
index 8f356caaf..8f356caaf 100644
--- a/src/mint/afl-tests/id:000092,src:000000,op:flip1,pos:121,+cov
+++ b/src/exchange/afl-tests/id:000092,src:000000,op:flip1,pos:121,+cov
diff --git a/src/mint/afl-tests/id:000092,src:000000,op:flip1,pos:92,+cov b/src/exchange/afl-tests/id:000092,src:000000,op:flip1,pos:92,+cov
index c612a5e8a..c612a5e8a 100644
--- a/src/mint/afl-tests/id:000092,src:000000,op:flip1,pos:92,+cov
+++ b/src/exchange/afl-tests/id:000092,src:000000,op:flip1,pos:92,+cov
diff --git a/src/mint/afl-tests/id:000093,src:000000,op:flip1,pos:123,+cov b/src/exchange/afl-tests/id:000093,src:000000,op:flip1,pos:123,+cov
index 7da2dd630..7da2dd630 100644
--- a/src/mint/afl-tests/id:000093,src:000000,op:flip1,pos:123,+cov
+++ b/src/exchange/afl-tests/id:000093,src:000000,op:flip1,pos:123,+cov
diff --git a/src/mint/afl-tests/id:000093,src:000000,op:flip1,pos:93,+cov b/src/exchange/afl-tests/id:000093,src:000000,op:flip1,pos:93,+cov
index 77e338910..77e338910 100644
--- a/src/mint/afl-tests/id:000093,src:000000,op:flip1,pos:93,+cov
+++ b/src/exchange/afl-tests/id:000093,src:000000,op:flip1,pos:93,+cov
diff --git a/src/mint/afl-tests/id:000094,src:000000,op:flip1,pos:126,+cov b/src/exchange/afl-tests/id:000094,src:000000,op:flip1,pos:126,+cov
index 60b4781da..60b4781da 100644
--- a/src/mint/afl-tests/id:000094,src:000000,op:flip1,pos:126,+cov
+++ b/src/exchange/afl-tests/id:000094,src:000000,op:flip1,pos:126,+cov
diff --git a/src/mint/afl-tests/id:000094,src:000000,op:flip1,pos:95,+cov b/src/exchange/afl-tests/id:000094,src:000000,op:flip1,pos:95,+cov
index 953a35925..953a35925 100644
--- a/src/mint/afl-tests/id:000094,src:000000,op:flip1,pos:95,+cov
+++ b/src/exchange/afl-tests/id:000094,src:000000,op:flip1,pos:95,+cov
diff --git a/src/mint/afl-tests/id:000095,src:000000,op:flip1,pos:135,+cov b/src/exchange/afl-tests/id:000095,src:000000,op:flip1,pos:135,+cov
index d93c02a69..d93c02a69 100644
--- a/src/mint/afl-tests/id:000095,src:000000,op:flip1,pos:135,+cov
+++ b/src/exchange/afl-tests/id:000095,src:000000,op:flip1,pos:135,+cov
diff --git a/src/mint/afl-tests/id:000095,src:000000,op:flip1,pos:96,+cov b/src/exchange/afl-tests/id:000095,src:000000,op:flip1,pos:96,+cov
index f7e319c82..f7e319c82 100644
--- a/src/mint/afl-tests/id:000095,src:000000,op:flip1,pos:96,+cov
+++ b/src/exchange/afl-tests/id:000095,src:000000,op:flip1,pos:96,+cov
diff --git a/src/mint/afl-tests/id:000096,src:000000,op:flip1,pos:135,+cov b/src/exchange/afl-tests/id:000096,src:000000,op:flip1,pos:135,+cov
index 58023e6c4..58023e6c4 100644
--- a/src/mint/afl-tests/id:000096,src:000000,op:flip1,pos:135,+cov
+++ b/src/exchange/afl-tests/id:000096,src:000000,op:flip1,pos:135,+cov
diff --git a/src/mint/afl-tests/id:000096,src:000000,op:flip1,pos:96,+cov b/src/exchange/afl-tests/id:000096,src:000000,op:flip1,pos:96,+cov
index 66a826aa6..66a826aa6 100644
--- a/src/mint/afl-tests/id:000096,src:000000,op:flip1,pos:96,+cov
+++ b/src/exchange/afl-tests/id:000096,src:000000,op:flip1,pos:96,+cov
diff --git a/src/mint/afl-tests/id:000097,src:000000,op:flip1,pos:135,+cov b/src/exchange/afl-tests/id:000097,src:000000,op:flip1,pos:135,+cov
index b334d40e2..b334d40e2 100644
--- a/src/mint/afl-tests/id:000097,src:000000,op:flip1,pos:135,+cov
+++ b/src/exchange/afl-tests/id:000097,src:000000,op:flip1,pos:135,+cov
diff --git a/src/mint/afl-tests/id:000097,src:000000,op:flip1,pos:97,+cov b/src/exchange/afl-tests/id:000097,src:000000,op:flip1,pos:97,+cov
index 804351fde..804351fde 100644
--- a/src/mint/afl-tests/id:000097,src:000000,op:flip1,pos:97,+cov
+++ b/src/exchange/afl-tests/id:000097,src:000000,op:flip1,pos:97,+cov
diff --git a/src/mint/afl-tests/id:000098,src:000000,op:flip1,pos:105 b/src/exchange/afl-tests/id:000098,src:000000,op:flip1,pos:105
index c6f988227..c6f988227 100644
--- a/src/mint/afl-tests/id:000098,src:000000,op:flip1,pos:105
+++ b/src/exchange/afl-tests/id:000098,src:000000,op:flip1,pos:105
diff --git a/src/mint/afl-tests/id:000098,src:000000,op:flip1,pos:136,+cov b/src/exchange/afl-tests/id:000098,src:000000,op:flip1,pos:136,+cov
index bbb9719f8..bbb9719f8 100644
--- a/src/mint/afl-tests/id:000098,src:000000,op:flip1,pos:136,+cov
+++ b/src/exchange/afl-tests/id:000098,src:000000,op:flip1,pos:136,+cov
diff --git a/src/mint/afl-tests/id:000099,src:000000,op:flip1,pos:106 b/src/exchange/afl-tests/id:000099,src:000000,op:flip1,pos:106
index 89c490d8a..89c490d8a 100644
--- a/src/mint/afl-tests/id:000099,src:000000,op:flip1,pos:106
+++ b/src/exchange/afl-tests/id:000099,src:000000,op:flip1,pos:106
diff --git a/src/mint/afl-tests/id:000099,src:000000,op:flip1,pos:136,+cov b/src/exchange/afl-tests/id:000099,src:000000,op:flip1,pos:136,+cov
index c2567eb9d..c2567eb9d 100644
--- a/src/mint/afl-tests/id:000099,src:000000,op:flip1,pos:136,+cov
+++ b/src/exchange/afl-tests/id:000099,src:000000,op:flip1,pos:136,+cov
diff --git a/src/mint/afl-tests/id:000100,src:000000,op:flip1,pos:113,+cov b/src/exchange/afl-tests/id:000100,src:000000,op:flip1,pos:113,+cov
index b628943bc..b628943bc 100644
--- a/src/mint/afl-tests/id:000100,src:000000,op:flip1,pos:113,+cov
+++ b/src/exchange/afl-tests/id:000100,src:000000,op:flip1,pos:113,+cov
diff --git a/src/mint/afl-tests/id:000100,src:000000,op:flip1,pos:136,+cov b/src/exchange/afl-tests/id:000100,src:000000,op:flip1,pos:136,+cov
index 1a6e5400f..1a6e5400f 100644
--- a/src/mint/afl-tests/id:000100,src:000000,op:flip1,pos:136,+cov
+++ b/src/exchange/afl-tests/id:000100,src:000000,op:flip1,pos:136,+cov
diff --git a/src/mint/afl-tests/id:000101,src:000000,op:flip1,pos:114,+cov b/src/exchange/afl-tests/id:000101,src:000000,op:flip1,pos:114,+cov
index 4529026c6..4529026c6 100644
--- a/src/mint/afl-tests/id:000101,src:000000,op:flip1,pos:114,+cov
+++ b/src/exchange/afl-tests/id:000101,src:000000,op:flip1,pos:114,+cov
diff --git a/src/mint/afl-tests/id:000101,src:000000,op:flip1,pos:136,+cov b/src/exchange/afl-tests/id:000101,src:000000,op:flip1,pos:136,+cov
index 34ab916be..34ab916be 100644
--- a/src/mint/afl-tests/id:000101,src:000000,op:flip1,pos:136,+cov
+++ b/src/exchange/afl-tests/id:000101,src:000000,op:flip1,pos:136,+cov
diff --git a/src/mint/afl-tests/id:000102,src:000000,op:flip1,pos:121,+cov b/src/exchange/afl-tests/id:000102,src:000000,op:flip1,pos:121,+cov
index 8f356caaf..8f356caaf 100644
--- a/src/mint/afl-tests/id:000102,src:000000,op:flip1,pos:121,+cov
+++ b/src/exchange/afl-tests/id:000102,src:000000,op:flip1,pos:121,+cov
diff --git a/src/mint/afl-tests/id:000102,src:000000,op:flip1,pos:137,+cov b/src/exchange/afl-tests/id:000102,src:000000,op:flip1,pos:137,+cov
index 344839c1b..344839c1b 100644
--- a/src/mint/afl-tests/id:000102,src:000000,op:flip1,pos:137,+cov
+++ b/src/exchange/afl-tests/id:000102,src:000000,op:flip1,pos:137,+cov
diff --git a/src/mint/afl-tests/id:000103,src:000000,op:flip1,pos:130,+cov b/src/exchange/afl-tests/id:000103,src:000000,op:flip1,pos:130,+cov
index 51d2182a9..51d2182a9 100644
--- a/src/mint/afl-tests/id:000103,src:000000,op:flip1,pos:130,+cov
+++ b/src/exchange/afl-tests/id:000103,src:000000,op:flip1,pos:130,+cov
diff --git a/src/mint/afl-tests/id:000103,src:000000,op:flip1,pos:138,+cov b/src/exchange/afl-tests/id:000103,src:000000,op:flip1,pos:138,+cov
index 9e06ca33c..9e06ca33c 100644
--- a/src/mint/afl-tests/id:000103,src:000000,op:flip1,pos:138,+cov
+++ b/src/exchange/afl-tests/id:000103,src:000000,op:flip1,pos:138,+cov
diff --git a/src/mint/afl-tests/id:000104,src:000000,op:flip1,pos:136,+cov b/src/exchange/afl-tests/id:000104,src:000000,op:flip1,pos:136,+cov
index bbb9719f8..bbb9719f8 100644
--- a/src/mint/afl-tests/id:000104,src:000000,op:flip1,pos:136,+cov
+++ b/src/exchange/afl-tests/id:000104,src:000000,op:flip1,pos:136,+cov
diff --git a/src/mint/afl-tests/id:000104,src:000000,op:flip1,pos:138,+cov b/src/exchange/afl-tests/id:000104,src:000000,op:flip1,pos:138,+cov
index 73831fca2..73831fca2 100644
--- a/src/mint/afl-tests/id:000104,src:000000,op:flip1,pos:138,+cov
+++ b/src/exchange/afl-tests/id:000104,src:000000,op:flip1,pos:138,+cov
diff --git a/src/mint/afl-tests/id:000105,src:000000,op:flip1,pos:137,+cov b/src/exchange/afl-tests/id:000105,src:000000,op:flip1,pos:137,+cov
index ffa4ecccc..ffa4ecccc 100644
--- a/src/mint/afl-tests/id:000105,src:000000,op:flip1,pos:137,+cov
+++ b/src/exchange/afl-tests/id:000105,src:000000,op:flip1,pos:137,+cov
diff --git a/src/mint/afl-tests/id:000105,src:000000,op:flip1,pos:139,+cov b/src/exchange/afl-tests/id:000105,src:000000,op:flip1,pos:139,+cov
index 55b879591..55b879591 100644
--- a/src/mint/afl-tests/id:000105,src:000000,op:flip1,pos:139,+cov
+++ b/src/exchange/afl-tests/id:000105,src:000000,op:flip1,pos:139,+cov
diff --git a/src/mint/afl-tests/id:000106,src:000000,op:flip1,pos:137,+cov b/src/exchange/afl-tests/id:000106,src:000000,op:flip1,pos:137,+cov
index 19daf0c22..19daf0c22 100644
--- a/src/mint/afl-tests/id:000106,src:000000,op:flip1,pos:137,+cov
+++ b/src/exchange/afl-tests/id:000106,src:000000,op:flip1,pos:137,+cov
diff --git a/src/mint/afl-tests/id:000106,src:000000,op:flip1,pos:139,+cov b/src/exchange/afl-tests/id:000106,src:000000,op:flip1,pos:139,+cov
index 28cb911f6..28cb911f6 100644
--- a/src/mint/afl-tests/id:000106,src:000000,op:flip1,pos:139,+cov
+++ b/src/exchange/afl-tests/id:000106,src:000000,op:flip1,pos:139,+cov
diff --git a/src/mint/afl-tests/id:000107,src:000000,op:flip1,pos:139,+cov b/src/exchange/afl-tests/id:000107,src:000000,op:flip1,pos:139,+cov
index 085dda8ee..085dda8ee 100644
--- a/src/mint/afl-tests/id:000107,src:000000,op:flip1,pos:139,+cov
+++ b/src/exchange/afl-tests/id:000107,src:000000,op:flip1,pos:139,+cov
diff --git a/src/mint/afl-tests/id:000107,src:000000,op:flip1,pos:140,+cov b/src/exchange/afl-tests/id:000107,src:000000,op:flip1,pos:140,+cov
index e488ec8c4..e488ec8c4 100644
--- a/src/mint/afl-tests/id:000107,src:000000,op:flip1,pos:140,+cov
+++ b/src/exchange/afl-tests/id:000107,src:000000,op:flip1,pos:140,+cov
diff --git a/src/mint/afl-tests/id:000108,src:000000,op:flip1,pos:140,+cov b/src/exchange/afl-tests/id:000108,src:000000,op:flip1,pos:140,+cov
index 5e435231c..5e435231c 100644
--- a/src/mint/afl-tests/id:000108,src:000000,op:flip1,pos:140,+cov
+++ b/src/exchange/afl-tests/id:000108,src:000000,op:flip1,pos:140,+cov
diff --git a/src/mint/afl-tests/id:000108,src:000000,op:flip1,pos:141,+cov b/src/exchange/afl-tests/id:000108,src:000000,op:flip1,pos:141,+cov
index 3ea1ff11e..3ea1ff11e 100644
--- a/src/mint/afl-tests/id:000108,src:000000,op:flip1,pos:141,+cov
+++ b/src/exchange/afl-tests/id:000108,src:000000,op:flip1,pos:141,+cov
diff --git a/src/mint/afl-tests/id:000109,src:000000,op:flip1,pos:140,+cov b/src/exchange/afl-tests/id:000109,src:000000,op:flip1,pos:140,+cov
index 08e96d8d6..08e96d8d6 100644
--- a/src/mint/afl-tests/id:000109,src:000000,op:flip1,pos:140,+cov
+++ b/src/exchange/afl-tests/id:000109,src:000000,op:flip1,pos:140,+cov
diff --git a/src/mint/afl-tests/id:000109,src:000000,op:flip1,pos:141,+cov b/src/exchange/afl-tests/id:000109,src:000000,op:flip1,pos:141,+cov
index 4ce12ecc7..4ce12ecc7 100644
--- a/src/mint/afl-tests/id:000109,src:000000,op:flip1,pos:141,+cov
+++ b/src/exchange/afl-tests/id:000109,src:000000,op:flip1,pos:141,+cov
diff --git a/src/mint/afl-tests/id:000110,src:000000,op:flip1,pos:141,+cov b/src/exchange/afl-tests/id:000110,src:000000,op:flip1,pos:141,+cov
index 2f146ad28..2f146ad28 100644
--- a/src/mint/afl-tests/id:000110,src:000000,op:flip1,pos:141,+cov
+++ b/src/exchange/afl-tests/id:000110,src:000000,op:flip1,pos:141,+cov
diff --git a/src/mint/afl-tests/id:000110,src:000000,op:flip1,pos:143,+cov b/src/exchange/afl-tests/id:000110,src:000000,op:flip1,pos:143,+cov
index 925c4586b..925c4586b 100644
--- a/src/mint/afl-tests/id:000110,src:000000,op:flip1,pos:143,+cov
+++ b/src/exchange/afl-tests/id:000110,src:000000,op:flip1,pos:143,+cov
diff --git a/src/mint/afl-tests/id:000111,src:000000,op:flip1,pos:141,+cov b/src/exchange/afl-tests/id:000111,src:000000,op:flip1,pos:141,+cov
index e2274d060..e2274d060 100644
--- a/src/mint/afl-tests/id:000111,src:000000,op:flip1,pos:141,+cov
+++ b/src/exchange/afl-tests/id:000111,src:000000,op:flip1,pos:141,+cov
diff --git a/src/mint/afl-tests/id:000111,src:000000,op:flip1,pos:145,+cov b/src/exchange/afl-tests/id:000111,src:000000,op:flip1,pos:145,+cov
index b1a501a81..b1a501a81 100644
--- a/src/mint/afl-tests/id:000111,src:000000,op:flip1,pos:145,+cov
+++ b/src/exchange/afl-tests/id:000111,src:000000,op:flip1,pos:145,+cov
diff --git a/src/mint/afl-tests/id:000112,src:000000,op:flip1,pos:142,+cov b/src/exchange/afl-tests/id:000112,src:000000,op:flip1,pos:142,+cov
index aee2d330d..aee2d330d 100644
--- a/src/mint/afl-tests/id:000112,src:000000,op:flip1,pos:142,+cov
+++ b/src/exchange/afl-tests/id:000112,src:000000,op:flip1,pos:142,+cov
diff --git a/src/mint/afl-tests/id:000112,src:000000,op:flip1,pos:147,+cov b/src/exchange/afl-tests/id:000112,src:000000,op:flip1,pos:147,+cov
index 3112e1f4c..3112e1f4c 100644
--- a/src/mint/afl-tests/id:000112,src:000000,op:flip1,pos:147,+cov
+++ b/src/exchange/afl-tests/id:000112,src:000000,op:flip1,pos:147,+cov
diff --git a/src/mint/afl-tests/id:000113,src:000000,op:flip1,pos:143,+cov b/src/exchange/afl-tests/id:000113,src:000000,op:flip1,pos:143,+cov
index 713d9c82a..713d9c82a 100644
--- a/src/mint/afl-tests/id:000113,src:000000,op:flip1,pos:143,+cov
+++ b/src/exchange/afl-tests/id:000113,src:000000,op:flip1,pos:143,+cov
diff --git a/src/mint/afl-tests/id:000113,src:000000,op:flip1,pos:147,+cov b/src/exchange/afl-tests/id:000113,src:000000,op:flip1,pos:147,+cov
index edc1ca6b0..edc1ca6b0 100644
--- a/src/mint/afl-tests/id:000113,src:000000,op:flip1,pos:147,+cov
+++ b/src/exchange/afl-tests/id:000113,src:000000,op:flip1,pos:147,+cov
diff --git a/src/mint/afl-tests/id:000114,src:000000,op:flip1,pos:144,+cov b/src/exchange/afl-tests/id:000114,src:000000,op:flip1,pos:144,+cov
index 75c3e9b4e..75c3e9b4e 100644
--- a/src/mint/afl-tests/id:000114,src:000000,op:flip1,pos:144,+cov
+++ b/src/exchange/afl-tests/id:000114,src:000000,op:flip1,pos:144,+cov
diff --git a/src/mint/afl-tests/id:000114,src:000000,op:flip1,pos:150,+cov b/src/exchange/afl-tests/id:000114,src:000000,op:flip1,pos:150,+cov
index a140ab564..a140ab564 100644
--- a/src/mint/afl-tests/id:000114,src:000000,op:flip1,pos:150,+cov
+++ b/src/exchange/afl-tests/id:000114,src:000000,op:flip1,pos:150,+cov
diff --git a/src/mint/afl-tests/id:000115,src:000000,op:flip1,pos:147,+cov b/src/exchange/afl-tests/id:000115,src:000000,op:flip1,pos:147,+cov
index 58004ecdb..58004ecdb 100644
--- a/src/mint/afl-tests/id:000115,src:000000,op:flip1,pos:147,+cov
+++ b/src/exchange/afl-tests/id:000115,src:000000,op:flip1,pos:147,+cov
diff --git a/src/mint/afl-tests/id:000115,src:000000,op:flip1,pos:153,+cov b/src/exchange/afl-tests/id:000115,src:000000,op:flip1,pos:153,+cov
index cf1bbf3a1..cf1bbf3a1 100644
--- a/src/mint/afl-tests/id:000115,src:000000,op:flip1,pos:153,+cov
+++ b/src/exchange/afl-tests/id:000115,src:000000,op:flip1,pos:153,+cov
diff --git a/src/mint/afl-tests/id:000116,src:000000,op:flip1,pos:150,+cov b/src/exchange/afl-tests/id:000116,src:000000,op:flip1,pos:150,+cov
index b09ae00c3..b09ae00c3 100644
--- a/src/mint/afl-tests/id:000116,src:000000,op:flip1,pos:150,+cov
+++ b/src/exchange/afl-tests/id:000116,src:000000,op:flip1,pos:150,+cov
diff --git a/src/mint/afl-tests/id:000116,src:000000,op:flip1,pos:154,+cov b/src/exchange/afl-tests/id:000116,src:000000,op:flip1,pos:154,+cov
index c83c4caa1..c83c4caa1 100644
--- a/src/mint/afl-tests/id:000116,src:000000,op:flip1,pos:154,+cov
+++ b/src/exchange/afl-tests/id:000116,src:000000,op:flip1,pos:154,+cov
diff --git a/src/mint/afl-tests/id:000117,src:000000,op:flip1,pos:151,+cov b/src/exchange/afl-tests/id:000117,src:000000,op:flip1,pos:151,+cov
index 0ed6ac3df..0ed6ac3df 100644
--- a/src/mint/afl-tests/id:000117,src:000000,op:flip1,pos:151,+cov
+++ b/src/exchange/afl-tests/id:000117,src:000000,op:flip1,pos:151,+cov
diff --git a/src/mint/afl-tests/id:000117,src:000000,op:flip1,pos:155,+cov b/src/exchange/afl-tests/id:000117,src:000000,op:flip1,pos:155,+cov
index 89799430e..89799430e 100644
--- a/src/mint/afl-tests/id:000117,src:000000,op:flip1,pos:155,+cov
+++ b/src/exchange/afl-tests/id:000117,src:000000,op:flip1,pos:155,+cov
diff --git a/src/mint/afl-tests/id:000118,src:000000,op:flip1,pos:151,+cov b/src/exchange/afl-tests/id:000118,src:000000,op:flip1,pos:151,+cov
index 1d1a985bd..1d1a985bd 100644
--- a/src/mint/afl-tests/id:000118,src:000000,op:flip1,pos:151,+cov
+++ b/src/exchange/afl-tests/id:000118,src:000000,op:flip1,pos:151,+cov
diff --git a/src/mint/afl-tests/id:000118,src:000000,op:flip1,pos:157,+cov b/src/exchange/afl-tests/id:000118,src:000000,op:flip1,pos:157,+cov
index 94e17ab78..94e17ab78 100644
--- a/src/mint/afl-tests/id:000118,src:000000,op:flip1,pos:157,+cov
+++ b/src/exchange/afl-tests/id:000118,src:000000,op:flip1,pos:157,+cov
diff --git a/src/mint/afl-tests/id:000119,src:000000,op:flip1,pos:154,+cov b/src/exchange/afl-tests/id:000119,src:000000,op:flip1,pos:154,+cov
index 17ed4d5fe..17ed4d5fe 100644
--- a/src/mint/afl-tests/id:000119,src:000000,op:flip1,pos:154,+cov
+++ b/src/exchange/afl-tests/id:000119,src:000000,op:flip1,pos:154,+cov
diff --git a/src/mint/afl-tests/id:000119,src:000000,op:flip1,pos:158,+cov b/src/exchange/afl-tests/id:000119,src:000000,op:flip1,pos:158,+cov
index 80d6e8c82..80d6e8c82 100644
--- a/src/mint/afl-tests/id:000119,src:000000,op:flip1,pos:158,+cov
+++ b/src/exchange/afl-tests/id:000119,src:000000,op:flip1,pos:158,+cov
diff --git a/src/mint/afl-tests/id:000120,src:000000,op:flip1,pos:155,+cov b/src/exchange/afl-tests/id:000120,src:000000,op:flip1,pos:155,+cov
index 89799430e..89799430e 100644
--- a/src/mint/afl-tests/id:000120,src:000000,op:flip1,pos:155,+cov
+++ b/src/exchange/afl-tests/id:000120,src:000000,op:flip1,pos:155,+cov
diff --git a/src/mint/afl-tests/id:000120,src:000000,op:flip1,pos:158,+cov b/src/exchange/afl-tests/id:000120,src:000000,op:flip1,pos:158,+cov
index 21435ffc1..21435ffc1 100644
--- a/src/mint/afl-tests/id:000120,src:000000,op:flip1,pos:158,+cov
+++ b/src/exchange/afl-tests/id:000120,src:000000,op:flip1,pos:158,+cov
diff --git a/src/mint/afl-tests/id:000121,src:000000,op:flip1,pos:156,+cov b/src/exchange/afl-tests/id:000121,src:000000,op:flip1,pos:156,+cov
index fd5d1d6dd..fd5d1d6dd 100644
--- a/src/mint/afl-tests/id:000121,src:000000,op:flip1,pos:156,+cov
+++ b/src/exchange/afl-tests/id:000121,src:000000,op:flip1,pos:156,+cov
diff --git a/src/mint/afl-tests/id:000121,src:000000,op:flip1,pos:159,+cov b/src/exchange/afl-tests/id:000121,src:000000,op:flip1,pos:159,+cov
index 20786b881..20786b881 100644
--- a/src/mint/afl-tests/id:000121,src:000000,op:flip1,pos:159,+cov
+++ b/src/exchange/afl-tests/id:000121,src:000000,op:flip1,pos:159,+cov
diff --git a/src/mint/afl-tests/id:000122,src:000000,op:flip1,pos:157,+cov b/src/exchange/afl-tests/id:000122,src:000000,op:flip1,pos:157,+cov
index 24183a7be..24183a7be 100644
--- a/src/mint/afl-tests/id:000122,src:000000,op:flip1,pos:157,+cov
+++ b/src/exchange/afl-tests/id:000122,src:000000,op:flip1,pos:157,+cov
diff --git a/src/mint/afl-tests/id:000122,src:000000,op:flip1,pos:159,+cov b/src/exchange/afl-tests/id:000122,src:000000,op:flip1,pos:159,+cov
index 886efcd3b..886efcd3b 100644
--- a/src/mint/afl-tests/id:000122,src:000000,op:flip1,pos:159,+cov
+++ b/src/exchange/afl-tests/id:000122,src:000000,op:flip1,pos:159,+cov
diff --git a/src/mint/afl-tests/id:000123,src:000000,op:flip1,pos:160,+cov b/src/exchange/afl-tests/id:000123,src:000000,op:flip1,pos:160,+cov
index 3febac853..3febac853 100644
--- a/src/mint/afl-tests/id:000123,src:000000,op:flip1,pos:160,+cov
+++ b/src/exchange/afl-tests/id:000123,src:000000,op:flip1,pos:160,+cov
diff --git a/src/mint/afl-tests/id:000123,src:000000,op:flip1,pos:161,+cov b/src/exchange/afl-tests/id:000123,src:000000,op:flip1,pos:161,+cov
index ce9a2ebc2..ce9a2ebc2 100644
--- a/src/mint/afl-tests/id:000123,src:000000,op:flip1,pos:161,+cov
+++ b/src/exchange/afl-tests/id:000123,src:000000,op:flip1,pos:161,+cov
diff --git a/src/mint/afl-tests/id:000124,src:000000,op:flip1,pos:161,+cov b/src/exchange/afl-tests/id:000124,src:000000,op:flip1,pos:161,+cov
index ce9a2ebc2..ce9a2ebc2 100644
--- a/src/mint/afl-tests/id:000124,src:000000,op:flip1,pos:161,+cov
+++ b/src/exchange/afl-tests/id:000124,src:000000,op:flip1,pos:161,+cov
diff --git a/src/mint/afl-tests/id:000124,src:000000,op:flip1,pos:164,+cov b/src/exchange/afl-tests/id:000124,src:000000,op:flip1,pos:164,+cov
index 5744b9975..5744b9975 100644
--- a/src/mint/afl-tests/id:000124,src:000000,op:flip1,pos:164,+cov
+++ b/src/exchange/afl-tests/id:000124,src:000000,op:flip1,pos:164,+cov
diff --git a/src/mint/afl-tests/id:000125,src:000000,op:flip1,pos:161,+cov b/src/exchange/afl-tests/id:000125,src:000000,op:flip1,pos:161,+cov
index f86f257a9..f86f257a9 100644
--- a/src/mint/afl-tests/id:000125,src:000000,op:flip1,pos:161,+cov
+++ b/src/exchange/afl-tests/id:000125,src:000000,op:flip1,pos:161,+cov
diff --git a/src/mint/afl-tests/id:000125,src:000000,op:flip1,pos:166,+cov b/src/exchange/afl-tests/id:000125,src:000000,op:flip1,pos:166,+cov
index 5beca5eea..5beca5eea 100644
--- a/src/mint/afl-tests/id:000125,src:000000,op:flip1,pos:166,+cov
+++ b/src/exchange/afl-tests/id:000125,src:000000,op:flip1,pos:166,+cov
diff --git a/src/mint/afl-tests/id:000126,src:000000,op:flip1,pos:163 b/src/exchange/afl-tests/id:000126,src:000000,op:flip1,pos:163
index 9425753e8..9425753e8 100644
--- a/src/mint/afl-tests/id:000126,src:000000,op:flip1,pos:163
+++ b/src/exchange/afl-tests/id:000126,src:000000,op:flip1,pos:163
diff --git a/src/mint/afl-tests/id:000126,src:000000,op:flip1,pos:166,+cov b/src/exchange/afl-tests/id:000126,src:000000,op:flip1,pos:166,+cov
index f002e4ec3..f002e4ec3 100644
--- a/src/mint/afl-tests/id:000126,src:000000,op:flip1,pos:166,+cov
+++ b/src/exchange/afl-tests/id:000126,src:000000,op:flip1,pos:166,+cov
diff --git a/src/mint/afl-tests/id:000127,src:000000,op:flip1,pos:166,+cov b/src/exchange/afl-tests/id:000127,src:000000,op:flip1,pos:166,+cov
index a3b1f320d..a3b1f320d 100644
--- a/src/mint/afl-tests/id:000127,src:000000,op:flip1,pos:166,+cov
+++ b/src/exchange/afl-tests/id:000127,src:000000,op:flip1,pos:166,+cov
diff --git a/src/mint/afl-tests/id:000127,src:000000,op:flip1,pos:167,+cov b/src/exchange/afl-tests/id:000127,src:000000,op:flip1,pos:167,+cov
index a60445b53..a60445b53 100644
--- a/src/mint/afl-tests/id:000127,src:000000,op:flip1,pos:167,+cov
+++ b/src/exchange/afl-tests/id:000127,src:000000,op:flip1,pos:167,+cov
diff --git a/src/mint/afl-tests/id:000128,src:000000,op:flip1,pos:167,+cov b/src/exchange/afl-tests/id:000128,src:000000,op:flip1,pos:167,+cov
index 4e352555f..4e352555f 100644
--- a/src/mint/afl-tests/id:000128,src:000000,op:flip1,pos:167,+cov
+++ b/src/exchange/afl-tests/id:000128,src:000000,op:flip1,pos:167,+cov
diff --git a/src/mint/afl-tests/id:000128,src:000000,op:flip1,pos:170,+cov b/src/exchange/afl-tests/id:000128,src:000000,op:flip1,pos:170,+cov
index cfa7c0d7b..cfa7c0d7b 100644
--- a/src/mint/afl-tests/id:000128,src:000000,op:flip1,pos:170,+cov
+++ b/src/exchange/afl-tests/id:000128,src:000000,op:flip1,pos:170,+cov
diff --git a/src/mint/afl-tests/id:000129,src:000000,op:flip1,pos:168,+cov b/src/exchange/afl-tests/id:000129,src:000000,op:flip1,pos:168,+cov
index 874140594..874140594 100644
--- a/src/mint/afl-tests/id:000129,src:000000,op:flip1,pos:168,+cov
+++ b/src/exchange/afl-tests/id:000129,src:000000,op:flip1,pos:168,+cov
diff --git a/src/mint/afl-tests/id:000129,src:000000,op:flip1,pos:173,+cov b/src/exchange/afl-tests/id:000129,src:000000,op:flip1,pos:173,+cov
index 1d8b5d505..1d8b5d505 100644
--- a/src/mint/afl-tests/id:000129,src:000000,op:flip1,pos:173,+cov
+++ b/src/exchange/afl-tests/id:000129,src:000000,op:flip1,pos:173,+cov
diff --git a/src/mint/afl-tests/id:000130,src:000000,op:flip1,pos:171,+cov b/src/exchange/afl-tests/id:000130,src:000000,op:flip1,pos:171,+cov
index 68e2ef202..68e2ef202 100644
--- a/src/mint/afl-tests/id:000130,src:000000,op:flip1,pos:171,+cov
+++ b/src/exchange/afl-tests/id:000130,src:000000,op:flip1,pos:171,+cov
diff --git a/src/mint/afl-tests/id:000130,src:000000,op:flip1,pos:173,+cov b/src/exchange/afl-tests/id:000130,src:000000,op:flip1,pos:173,+cov
index 4db18a5cc..4db18a5cc 100644
--- a/src/mint/afl-tests/id:000130,src:000000,op:flip1,pos:173,+cov
+++ b/src/exchange/afl-tests/id:000130,src:000000,op:flip1,pos:173,+cov
diff --git a/src/mint/afl-tests/id:000131,src:000000,op:flip1,pos:172,+cov b/src/exchange/afl-tests/id:000131,src:000000,op:flip1,pos:172,+cov
index 6ce6913a1..6ce6913a1 100644
--- a/src/mint/afl-tests/id:000131,src:000000,op:flip1,pos:172,+cov
+++ b/src/exchange/afl-tests/id:000131,src:000000,op:flip1,pos:172,+cov
diff --git a/src/mint/afl-tests/id:000131,src:000000,op:flip1,pos:174,+cov b/src/exchange/afl-tests/id:000131,src:000000,op:flip1,pos:174,+cov
index c3b3c2c97..c3b3c2c97 100644
--- a/src/mint/afl-tests/id:000131,src:000000,op:flip1,pos:174,+cov
+++ b/src/exchange/afl-tests/id:000131,src:000000,op:flip1,pos:174,+cov
diff --git a/src/mint/afl-tests/id:000132,src:000000,op:flip1,pos:173,+cov b/src/exchange/afl-tests/id:000132,src:000000,op:flip1,pos:173,+cov
index 92fa76678..92fa76678 100644
--- a/src/mint/afl-tests/id:000132,src:000000,op:flip1,pos:173,+cov
+++ b/src/exchange/afl-tests/id:000132,src:000000,op:flip1,pos:173,+cov
diff --git a/src/mint/afl-tests/id:000132,src:000000,op:flip1,pos:176,+cov b/src/exchange/afl-tests/id:000132,src:000000,op:flip1,pos:176,+cov
index 466b32724..466b32724 100644
--- a/src/mint/afl-tests/id:000132,src:000000,op:flip1,pos:176,+cov
+++ b/src/exchange/afl-tests/id:000132,src:000000,op:flip1,pos:176,+cov
diff --git a/src/mint/afl-tests/id:000133,src:000000,op:flip1,pos:173,+cov b/src/exchange/afl-tests/id:000133,src:000000,op:flip1,pos:173,+cov
index 4db18a5cc..4db18a5cc 100644
--- a/src/mint/afl-tests/id:000133,src:000000,op:flip1,pos:173,+cov
+++ b/src/exchange/afl-tests/id:000133,src:000000,op:flip1,pos:173,+cov
diff --git a/src/mint/afl-tests/id:000133,src:000000,op:flip1,pos:178,+cov b/src/exchange/afl-tests/id:000133,src:000000,op:flip1,pos:178,+cov
index a1962a789..a1962a789 100644
--- a/src/mint/afl-tests/id:000133,src:000000,op:flip1,pos:178,+cov
+++ b/src/exchange/afl-tests/id:000133,src:000000,op:flip1,pos:178,+cov
diff --git a/src/mint/afl-tests/id:000134,src:000000,op:flip1,pos:174,+cov b/src/exchange/afl-tests/id:000134,src:000000,op:flip1,pos:174,+cov
index c3b3c2c97..c3b3c2c97 100644
--- a/src/mint/afl-tests/id:000134,src:000000,op:flip1,pos:174,+cov
+++ b/src/exchange/afl-tests/id:000134,src:000000,op:flip1,pos:174,+cov
diff --git a/src/mint/afl-tests/id:000134,src:000000,op:flip1,pos:178,+cov b/src/exchange/afl-tests/id:000134,src:000000,op:flip1,pos:178,+cov
index 473caadeb..473caadeb 100644
--- a/src/mint/afl-tests/id:000134,src:000000,op:flip1,pos:178,+cov
+++ b/src/exchange/afl-tests/id:000134,src:000000,op:flip1,pos:178,+cov
diff --git a/src/mint/afl-tests/id:000135,src:000000,op:flip1,pos:179,+cov b/src/exchange/afl-tests/id:000135,src:000000,op:flip1,pos:179,+cov
index 54256b54e..54256b54e 100644
--- a/src/mint/afl-tests/id:000135,src:000000,op:flip1,pos:179,+cov
+++ b/src/exchange/afl-tests/id:000135,src:000000,op:flip1,pos:179,+cov
diff --git a/src/mint/afl-tests/id:000135,src:000000,op:flip1,pos:180 b/src/exchange/afl-tests/id:000135,src:000000,op:flip1,pos:180
index 986d184f8..986d184f8 100644
--- a/src/mint/afl-tests/id:000135,src:000000,op:flip1,pos:180
+++ b/src/exchange/afl-tests/id:000135,src:000000,op:flip1,pos:180
diff --git a/src/mint/afl-tests/id:000136,src:000000,op:flip1,pos:182,+cov b/src/exchange/afl-tests/id:000136,src:000000,op:flip1,pos:182,+cov
index a3aa1bf03..a3aa1bf03 100644
--- a/src/mint/afl-tests/id:000136,src:000000,op:flip1,pos:182,+cov
+++ b/src/exchange/afl-tests/id:000136,src:000000,op:flip1,pos:182,+cov
diff --git a/src/mint/afl-tests/id:000136,src:000000,op:flip1,pos:183,+cov b/src/exchange/afl-tests/id:000136,src:000000,op:flip1,pos:183,+cov
index 34e914ef2..34e914ef2 100644
--- a/src/mint/afl-tests/id:000136,src:000000,op:flip1,pos:183,+cov
+++ b/src/exchange/afl-tests/id:000136,src:000000,op:flip1,pos:183,+cov
diff --git a/src/mint/afl-tests/id:000137,src:000000,op:flip1,pos:182,+cov b/src/exchange/afl-tests/id:000137,src:000000,op:flip1,pos:182,+cov
index 2e6be2376..2e6be2376 100644
--- a/src/mint/afl-tests/id:000137,src:000000,op:flip1,pos:182,+cov
+++ b/src/exchange/afl-tests/id:000137,src:000000,op:flip1,pos:182,+cov
diff --git a/src/mint/afl-tests/id:000137,src:000000,op:flip1,pos:184,+cov b/src/exchange/afl-tests/id:000137,src:000000,op:flip1,pos:184,+cov
index bee5f4edd..bee5f4edd 100644
--- a/src/mint/afl-tests/id:000137,src:000000,op:flip1,pos:184,+cov
+++ b/src/exchange/afl-tests/id:000137,src:000000,op:flip1,pos:184,+cov
diff --git a/src/mint/afl-tests/id:000138,src:000000,op:flip1,pos:183 b/src/exchange/afl-tests/id:000138,src:000000,op:flip1,pos:183
index f38c4f23c..f38c4f23c 100644
--- a/src/mint/afl-tests/id:000138,src:000000,op:flip1,pos:183
+++ b/src/exchange/afl-tests/id:000138,src:000000,op:flip1,pos:183
diff --git a/src/mint/afl-tests/id:000138,src:000000,op:flip1,pos:185,+cov b/src/exchange/afl-tests/id:000138,src:000000,op:flip1,pos:185,+cov
index 2f2c920c5..2f2c920c5 100644
--- a/src/mint/afl-tests/id:000138,src:000000,op:flip1,pos:185,+cov
+++ b/src/exchange/afl-tests/id:000138,src:000000,op:flip1,pos:185,+cov
diff --git a/src/mint/afl-tests/id:000139,src:000000,op:flip1,pos:183,+cov b/src/exchange/afl-tests/id:000139,src:000000,op:flip1,pos:183,+cov
index 4b04164fc..4b04164fc 100644
--- a/src/mint/afl-tests/id:000139,src:000000,op:flip1,pos:183,+cov
+++ b/src/exchange/afl-tests/id:000139,src:000000,op:flip1,pos:183,+cov
diff --git a/src/mint/afl-tests/id:000139,src:000000,op:flip1,pos:190 b/src/exchange/afl-tests/id:000139,src:000000,op:flip1,pos:190
index d265410b3..d265410b3 100644
--- a/src/mint/afl-tests/id:000139,src:000000,op:flip1,pos:190
+++ b/src/exchange/afl-tests/id:000139,src:000000,op:flip1,pos:190
diff --git a/src/mint/afl-tests/id:000140,src:000000,op:flip1,pos:185,+cov b/src/exchange/afl-tests/id:000140,src:000000,op:flip1,pos:185,+cov
index 31bed44fe..31bed44fe 100644
--- a/src/mint/afl-tests/id:000140,src:000000,op:flip1,pos:185,+cov
+++ b/src/exchange/afl-tests/id:000140,src:000000,op:flip1,pos:185,+cov
diff --git a/src/mint/afl-tests/id:000140,src:000000,op:flip1,pos:200,+cov b/src/exchange/afl-tests/id:000140,src:000000,op:flip1,pos:200,+cov
index eb0718fb2..eb0718fb2 100644
--- a/src/mint/afl-tests/id:000140,src:000000,op:flip1,pos:200,+cov
+++ b/src/exchange/afl-tests/id:000140,src:000000,op:flip1,pos:200,+cov
diff --git a/src/mint/afl-tests/id:000141,src:000000,op:flip1,pos:185,+cov b/src/exchange/afl-tests/id:000141,src:000000,op:flip1,pos:185,+cov
index 5ab71dca9..5ab71dca9 100644
--- a/src/mint/afl-tests/id:000141,src:000000,op:flip1,pos:185,+cov
+++ b/src/exchange/afl-tests/id:000141,src:000000,op:flip1,pos:185,+cov
diff --git a/src/mint/afl-tests/id:000141,src:000000,op:flip1,pos:205,+cov b/src/exchange/afl-tests/id:000141,src:000000,op:flip1,pos:205,+cov
index 708264144..708264144 100644
--- a/src/mint/afl-tests/id:000141,src:000000,op:flip1,pos:205,+cov
+++ b/src/exchange/afl-tests/id:000141,src:000000,op:flip1,pos:205,+cov
diff --git a/src/mint/afl-tests/id:000142,src:000000,op:flip1,pos:190 b/src/exchange/afl-tests/id:000142,src:000000,op:flip1,pos:190
index d265410b3..d265410b3 100644
--- a/src/mint/afl-tests/id:000142,src:000000,op:flip1,pos:190
+++ b/src/exchange/afl-tests/id:000142,src:000000,op:flip1,pos:190
diff --git a/src/mint/afl-tests/id:000142,src:000000,op:flip1,pos:211,+cov b/src/exchange/afl-tests/id:000142,src:000000,op:flip1,pos:211,+cov
index 7ca49af05..7ca49af05 100644
--- a/src/mint/afl-tests/id:000142,src:000000,op:flip1,pos:211,+cov
+++ b/src/exchange/afl-tests/id:000142,src:000000,op:flip1,pos:211,+cov
diff --git a/src/mint/afl-tests/id:000143,src:000000,op:flip1,pos:193,+cov b/src/exchange/afl-tests/id:000143,src:000000,op:flip1,pos:193,+cov
index 1cbe18b03..1cbe18b03 100644
--- a/src/mint/afl-tests/id:000143,src:000000,op:flip1,pos:193,+cov
+++ b/src/exchange/afl-tests/id:000143,src:000000,op:flip1,pos:193,+cov
diff --git a/src/mint/afl-tests/id:000143,src:000000,op:flip1,pos:238,+cov b/src/exchange/afl-tests/id:000143,src:000000,op:flip1,pos:238,+cov
index 6f88553f4..6f88553f4 100644
--- a/src/mint/afl-tests/id:000143,src:000000,op:flip1,pos:238,+cov
+++ b/src/exchange/afl-tests/id:000143,src:000000,op:flip1,pos:238,+cov
diff --git a/src/mint/afl-tests/id:000144,src:000000,op:flip1,pos:200,+cov b/src/exchange/afl-tests/id:000144,src:000000,op:flip1,pos:200,+cov
index eb0718fb2..eb0718fb2 100644
--- a/src/mint/afl-tests/id:000144,src:000000,op:flip1,pos:200,+cov
+++ b/src/exchange/afl-tests/id:000144,src:000000,op:flip1,pos:200,+cov
diff --git a/src/mint/afl-tests/id:000144,src:000000,op:flip1,pos:238,+cov b/src/exchange/afl-tests/id:000144,src:000000,op:flip1,pos:238,+cov
index 0f84aff25..0f84aff25 100644
--- a/src/mint/afl-tests/id:000144,src:000000,op:flip1,pos:238,+cov
+++ b/src/exchange/afl-tests/id:000144,src:000000,op:flip1,pos:238,+cov
diff --git a/src/mint/afl-tests/id:000145,src:000000,op:flip1,pos:211,+cov b/src/exchange/afl-tests/id:000145,src:000000,op:flip1,pos:211,+cov
index 7ca49af05..7ca49af05 100644
--- a/src/mint/afl-tests/id:000145,src:000000,op:flip1,pos:211,+cov
+++ b/src/exchange/afl-tests/id:000145,src:000000,op:flip1,pos:211,+cov
diff --git a/src/mint/afl-tests/id:000145,src:000000,op:flip1,pos:241,+cov b/src/exchange/afl-tests/id:000145,src:000000,op:flip1,pos:241,+cov
index 501ddae33..501ddae33 100644
--- a/src/mint/afl-tests/id:000145,src:000000,op:flip1,pos:241,+cov
+++ b/src/exchange/afl-tests/id:000145,src:000000,op:flip1,pos:241,+cov
diff --git a/src/mint/afl-tests/id:000146,src:000000,op:flip1,pos:223,+cov b/src/exchange/afl-tests/id:000146,src:000000,op:flip1,pos:223,+cov
index c55c38248..c55c38248 100644
--- a/src/mint/afl-tests/id:000146,src:000000,op:flip1,pos:223,+cov
+++ b/src/exchange/afl-tests/id:000146,src:000000,op:flip1,pos:223,+cov
diff --git a/src/mint/afl-tests/id:000146,src:000000,op:flip1,pos:245 b/src/exchange/afl-tests/id:000146,src:000000,op:flip1,pos:245
index a15b71dd2..a15b71dd2 100644
--- a/src/mint/afl-tests/id:000146,src:000000,op:flip1,pos:245
+++ b/src/exchange/afl-tests/id:000146,src:000000,op:flip1,pos:245
diff --git a/src/mint/afl-tests/id:000147,src:000000,op:flip1,pos:245 b/src/exchange/afl-tests/id:000147,src:000000,op:flip1,pos:245
index a15b71dd2..a15b71dd2 100644
--- a/src/mint/afl-tests/id:000147,src:000000,op:flip1,pos:245
+++ b/src/exchange/afl-tests/id:000147,src:000000,op:flip1,pos:245
diff --git a/src/mint/afl-tests/id:000147,src:000000,op:flip1,pos:255,+cov b/src/exchange/afl-tests/id:000147,src:000000,op:flip1,pos:255,+cov
index e1f099496..e1f099496 100644
--- a/src/mint/afl-tests/id:000147,src:000000,op:flip1,pos:255,+cov
+++ b/src/exchange/afl-tests/id:000147,src:000000,op:flip1,pos:255,+cov
diff --git a/src/mint/afl-tests/id:000148,src:000000,op:flip1,pos:262,+cov b/src/exchange/afl-tests/id:000148,src:000000,op:flip1,pos:262,+cov
index f945518f1..f945518f1 100644
--- a/src/mint/afl-tests/id:000148,src:000000,op:flip1,pos:262,+cov
+++ b/src/exchange/afl-tests/id:000148,src:000000,op:flip1,pos:262,+cov
diff --git a/src/mint/afl-tests/id:000149,src:000000,op:flip1,pos:268,+cov b/src/exchange/afl-tests/id:000149,src:000000,op:flip1,pos:268,+cov
index 6c20c7496..6c20c7496 100644
--- a/src/mint/afl-tests/id:000149,src:000000,op:flip1,pos:268,+cov
+++ b/src/exchange/afl-tests/id:000149,src:000000,op:flip1,pos:268,+cov
diff --git a/src/mint/afl-tests/id:000149,src:000000,op:flip1,pos:270,+cov b/src/exchange/afl-tests/id:000149,src:000000,op:flip1,pos:270,+cov
index 689fe9458..689fe9458 100644
--- a/src/mint/afl-tests/id:000149,src:000000,op:flip1,pos:270,+cov
+++ b/src/exchange/afl-tests/id:000149,src:000000,op:flip1,pos:270,+cov
diff --git a/src/mint/afl-tests/id:000150,src:000000,op:flip1,pos:269,+cov b/src/exchange/afl-tests/id:000150,src:000000,op:flip1,pos:269,+cov
index 1f37e4510..1f37e4510 100644
--- a/src/mint/afl-tests/id:000150,src:000000,op:flip1,pos:269,+cov
+++ b/src/exchange/afl-tests/id:000150,src:000000,op:flip1,pos:269,+cov
diff --git a/src/mint/afl-tests/id:000150,src:000000,op:flip1,pos:279,+cov b/src/exchange/afl-tests/id:000150,src:000000,op:flip1,pos:279,+cov
index a6586b515..a6586b515 100644
--- a/src/mint/afl-tests/id:000150,src:000000,op:flip1,pos:279,+cov
+++ b/src/exchange/afl-tests/id:000150,src:000000,op:flip1,pos:279,+cov
diff --git a/src/mint/afl-tests/id:000151,src:000000,op:flip1,pos:270,+cov b/src/exchange/afl-tests/id:000151,src:000000,op:flip1,pos:270,+cov
index be7906884..be7906884 100644
--- a/src/mint/afl-tests/id:000151,src:000000,op:flip1,pos:270,+cov
+++ b/src/exchange/afl-tests/id:000151,src:000000,op:flip1,pos:270,+cov
diff --git a/src/mint/afl-tests/id:000151,src:000000,op:flip1,pos:279,+cov b/src/exchange/afl-tests/id:000151,src:000000,op:flip1,pos:279,+cov
index 230e7e807..230e7e807 100644
--- a/src/mint/afl-tests/id:000151,src:000000,op:flip1,pos:279,+cov
+++ b/src/exchange/afl-tests/id:000151,src:000000,op:flip1,pos:279,+cov
diff --git a/src/mint/afl-tests/id:000152,src:000000,op:flip1,pos:271,+cov b/src/exchange/afl-tests/id:000152,src:000000,op:flip1,pos:271,+cov
index 2ad3fd8ba..2ad3fd8ba 100644
--- a/src/mint/afl-tests/id:000152,src:000000,op:flip1,pos:271,+cov
+++ b/src/exchange/afl-tests/id:000152,src:000000,op:flip1,pos:271,+cov
diff --git a/src/mint/afl-tests/id:000152,src:000000,op:flip1,pos:283,+cov b/src/exchange/afl-tests/id:000152,src:000000,op:flip1,pos:283,+cov
index 672d4e494..672d4e494 100644
--- a/src/mint/afl-tests/id:000152,src:000000,op:flip1,pos:283,+cov
+++ b/src/exchange/afl-tests/id:000152,src:000000,op:flip1,pos:283,+cov
diff --git a/src/mint/afl-tests/id:000153,src:000000,op:flip1,pos:271,+cov b/src/exchange/afl-tests/id:000153,src:000000,op:flip1,pos:271,+cov
index 35890d911..35890d911 100644
--- a/src/mint/afl-tests/id:000153,src:000000,op:flip1,pos:271,+cov
+++ b/src/exchange/afl-tests/id:000153,src:000000,op:flip1,pos:271,+cov
diff --git a/src/mint/afl-tests/id:000153,src:000000,op:flip1,pos:291,+cov b/src/exchange/afl-tests/id:000153,src:000000,op:flip1,pos:291,+cov
index 0c04e72ec..0c04e72ec 100644
--- a/src/mint/afl-tests/id:000153,src:000000,op:flip1,pos:291,+cov
+++ b/src/exchange/afl-tests/id:000153,src:000000,op:flip1,pos:291,+cov
diff --git a/src/mint/afl-tests/id:000154,src:000000,op:flip1,pos:274,+cov b/src/exchange/afl-tests/id:000154,src:000000,op:flip1,pos:274,+cov
index a881299a1..a881299a1 100644
--- a/src/mint/afl-tests/id:000154,src:000000,op:flip1,pos:274,+cov
+++ b/src/exchange/afl-tests/id:000154,src:000000,op:flip1,pos:274,+cov
diff --git a/src/mint/afl-tests/id:000154,src:000000,op:flip1,pos:298,+cov b/src/exchange/afl-tests/id:000154,src:000000,op:flip1,pos:298,+cov
index 1f9995d71..1f9995d71 100644
--- a/src/mint/afl-tests/id:000154,src:000000,op:flip1,pos:298,+cov
+++ b/src/exchange/afl-tests/id:000154,src:000000,op:flip1,pos:298,+cov
diff --git a/src/mint/afl-tests/id:000155,src:000000,op:flip1,pos:279,+cov b/src/exchange/afl-tests/id:000155,src:000000,op:flip1,pos:279,+cov
index 88acf57fb..88acf57fb 100644
--- a/src/mint/afl-tests/id:000155,src:000000,op:flip1,pos:279,+cov
+++ b/src/exchange/afl-tests/id:000155,src:000000,op:flip1,pos:279,+cov
diff --git a/src/mint/afl-tests/id:000155,src:000000,op:flip1,pos:302,+cov b/src/exchange/afl-tests/id:000155,src:000000,op:flip1,pos:302,+cov
index 7996c1f8a..7996c1f8a 100644
--- a/src/mint/afl-tests/id:000155,src:000000,op:flip1,pos:302,+cov
+++ b/src/exchange/afl-tests/id:000155,src:000000,op:flip1,pos:302,+cov
diff --git a/src/mint/afl-tests/id:000156,src:000000,op:flip1,pos:281,+cov b/src/exchange/afl-tests/id:000156,src:000000,op:flip1,pos:281,+cov
index 0eb308738..0eb308738 100644
--- a/src/mint/afl-tests/id:000156,src:000000,op:flip1,pos:281,+cov
+++ b/src/exchange/afl-tests/id:000156,src:000000,op:flip1,pos:281,+cov
diff --git a/src/mint/afl-tests/id:000156,src:000000,op:flip1,pos:305,+cov b/src/exchange/afl-tests/id:000156,src:000000,op:flip1,pos:305,+cov
index f32354eac..f32354eac 100644
--- a/src/mint/afl-tests/id:000156,src:000000,op:flip1,pos:305,+cov
+++ b/src/exchange/afl-tests/id:000156,src:000000,op:flip1,pos:305,+cov
diff --git a/src/mint/afl-tests/id:000157,src:000000,op:flip1,pos:283,+cov b/src/exchange/afl-tests/id:000157,src:000000,op:flip1,pos:283,+cov
index 672d4e494..672d4e494 100644
--- a/src/mint/afl-tests/id:000157,src:000000,op:flip1,pos:283,+cov
+++ b/src/exchange/afl-tests/id:000157,src:000000,op:flip1,pos:283,+cov
diff --git a/src/mint/afl-tests/id:000157,src:000000,op:flip1,pos:307,+cov b/src/exchange/afl-tests/id:000157,src:000000,op:flip1,pos:307,+cov
index 34203b90f..34203b90f 100644
--- a/src/mint/afl-tests/id:000157,src:000000,op:flip1,pos:307,+cov
+++ b/src/exchange/afl-tests/id:000157,src:000000,op:flip1,pos:307,+cov
diff --git a/src/mint/afl-tests/id:000158,src:000000,op:flip1,pos:291,+cov b/src/exchange/afl-tests/id:000158,src:000000,op:flip1,pos:291,+cov
index 0c04e72ec..0c04e72ec 100644
--- a/src/mint/afl-tests/id:000158,src:000000,op:flip1,pos:291,+cov
+++ b/src/exchange/afl-tests/id:000158,src:000000,op:flip1,pos:291,+cov
diff --git a/src/mint/afl-tests/id:000158,src:000000,op:flip1,pos:313,+cov b/src/exchange/afl-tests/id:000158,src:000000,op:flip1,pos:313,+cov
index 374d46f3e..374d46f3e 100644
--- a/src/mint/afl-tests/id:000158,src:000000,op:flip1,pos:313,+cov
+++ b/src/exchange/afl-tests/id:000158,src:000000,op:flip1,pos:313,+cov
diff --git a/src/mint/afl-tests/id:000159,src:000000,op:flip1,pos:298,+cov b/src/exchange/afl-tests/id:000159,src:000000,op:flip1,pos:298,+cov
index 1f9995d71..1f9995d71 100644
--- a/src/mint/afl-tests/id:000159,src:000000,op:flip1,pos:298,+cov
+++ b/src/exchange/afl-tests/id:000159,src:000000,op:flip1,pos:298,+cov
diff --git a/src/mint/afl-tests/id:000159,src:000000,op:flip1,pos:313,+cov b/src/exchange/afl-tests/id:000159,src:000000,op:flip1,pos:313,+cov
index 0f5e14188..0f5e14188 100644
--- a/src/mint/afl-tests/id:000159,src:000000,op:flip1,pos:313,+cov
+++ b/src/exchange/afl-tests/id:000159,src:000000,op:flip1,pos:313,+cov
diff --git a/src/mint/afl-tests/id:000160,src:000000,op:flip1,pos:299,+cov b/src/exchange/afl-tests/id:000160,src:000000,op:flip1,pos:299,+cov
index da9ab67f7..da9ab67f7 100644
--- a/src/mint/afl-tests/id:000160,src:000000,op:flip1,pos:299,+cov
+++ b/src/exchange/afl-tests/id:000160,src:000000,op:flip1,pos:299,+cov
diff --git a/src/mint/afl-tests/id:000160,src:000000,op:flip1,pos:314,+cov b/src/exchange/afl-tests/id:000160,src:000000,op:flip1,pos:314,+cov
index da35d1b41..da35d1b41 100644
--- a/src/mint/afl-tests/id:000160,src:000000,op:flip1,pos:314,+cov
+++ b/src/exchange/afl-tests/id:000160,src:000000,op:flip1,pos:314,+cov
diff --git a/src/mint/afl-tests/id:000161,src:000000,op:flip1,pos:306,+cov b/src/exchange/afl-tests/id:000161,src:000000,op:flip1,pos:306,+cov
index a128da0a7..a128da0a7 100644
--- a/src/mint/afl-tests/id:000161,src:000000,op:flip1,pos:306,+cov
+++ b/src/exchange/afl-tests/id:000161,src:000000,op:flip1,pos:306,+cov
diff --git a/src/mint/afl-tests/id:000161,src:000000,op:flip1,pos:314,+cov b/src/exchange/afl-tests/id:000161,src:000000,op:flip1,pos:314,+cov
index 4d12e0f2b..4d12e0f2b 100644
--- a/src/mint/afl-tests/id:000161,src:000000,op:flip1,pos:314,+cov
+++ b/src/exchange/afl-tests/id:000161,src:000000,op:flip1,pos:314,+cov
diff --git a/src/mint/afl-tests/id:000162,src:000000,op:flip1,pos:308,+cov b/src/exchange/afl-tests/id:000162,src:000000,op:flip1,pos:308,+cov
index fe4b76672..fe4b76672 100644
--- a/src/mint/afl-tests/id:000162,src:000000,op:flip1,pos:308,+cov
+++ b/src/exchange/afl-tests/id:000162,src:000000,op:flip1,pos:308,+cov
diff --git a/src/mint/afl-tests/id:000162,src:000000,op:flip1,pos:315,+cov b/src/exchange/afl-tests/id:000162,src:000000,op:flip1,pos:315,+cov
index 274d55458..274d55458 100644
--- a/src/mint/afl-tests/id:000162,src:000000,op:flip1,pos:315,+cov
+++ b/src/exchange/afl-tests/id:000162,src:000000,op:flip1,pos:315,+cov
diff --git a/src/mint/afl-tests/id:000163,src:000000,op:flip1,pos:312,+cov b/src/exchange/afl-tests/id:000163,src:000000,op:flip1,pos:312,+cov
index 1e05fd6b2..1e05fd6b2 100644
--- a/src/mint/afl-tests/id:000163,src:000000,op:flip1,pos:312,+cov
+++ b/src/exchange/afl-tests/id:000163,src:000000,op:flip1,pos:312,+cov
diff --git a/src/mint/afl-tests/id:000163,src:000000,op:flip1,pos:316,+cov b/src/exchange/afl-tests/id:000163,src:000000,op:flip1,pos:316,+cov
index 12532705d..12532705d 100644
--- a/src/mint/afl-tests/id:000163,src:000000,op:flip1,pos:316,+cov
+++ b/src/exchange/afl-tests/id:000163,src:000000,op:flip1,pos:316,+cov
diff --git a/src/mint/afl-tests/id:000164,src:000000,op:flip1,pos:315,+cov b/src/exchange/afl-tests/id:000164,src:000000,op:flip1,pos:315,+cov
index bb0c664b9..bb0c664b9 100644
--- a/src/mint/afl-tests/id:000164,src:000000,op:flip1,pos:315,+cov
+++ b/src/exchange/afl-tests/id:000164,src:000000,op:flip1,pos:315,+cov
diff --git a/src/mint/afl-tests/id:000164,src:000000,op:flip1,pos:317 b/src/exchange/afl-tests/id:000164,src:000000,op:flip1,pos:317
index 3384c3d9d..3384c3d9d 100644
--- a/src/mint/afl-tests/id:000164,src:000000,op:flip1,pos:317
+++ b/src/exchange/afl-tests/id:000164,src:000000,op:flip1,pos:317
diff --git a/src/mint/afl-tests/id:000165,src:000000,op:flip1,pos:316,+cov b/src/exchange/afl-tests/id:000165,src:000000,op:flip1,pos:316,+cov
index efbdf7a65..efbdf7a65 100644
--- a/src/mint/afl-tests/id:000165,src:000000,op:flip1,pos:316,+cov
+++ b/src/exchange/afl-tests/id:000165,src:000000,op:flip1,pos:316,+cov
diff --git a/src/mint/afl-tests/id:000165,src:000000,op:flip1,pos:317,+cov b/src/exchange/afl-tests/id:000165,src:000000,op:flip1,pos:317,+cov
index d643b866f..d643b866f 100644
--- a/src/mint/afl-tests/id:000165,src:000000,op:flip1,pos:317,+cov
+++ b/src/exchange/afl-tests/id:000165,src:000000,op:flip1,pos:317,+cov
diff --git a/src/mint/afl-tests/id:000166,src:000000,op:flip1,pos:316,+cov b/src/exchange/afl-tests/id:000166,src:000000,op:flip1,pos:316,+cov
index cf277a865..cf277a865 100644
--- a/src/mint/afl-tests/id:000166,src:000000,op:flip1,pos:316,+cov
+++ b/src/exchange/afl-tests/id:000166,src:000000,op:flip1,pos:316,+cov
diff --git a/src/mint/afl-tests/id:000166,src:000000,op:flip1,pos:319,+cov b/src/exchange/afl-tests/id:000166,src:000000,op:flip1,pos:319,+cov
index 54c4ce79d..54c4ce79d 100644
--- a/src/mint/afl-tests/id:000166,src:000000,op:flip1,pos:319,+cov
+++ b/src/exchange/afl-tests/id:000166,src:000000,op:flip1,pos:319,+cov
diff --git a/src/mint/afl-tests/id:000167,src:000000,op:flip1,pos:317,+cov b/src/exchange/afl-tests/id:000167,src:000000,op:flip1,pos:317,+cov
index af8e0b86c..af8e0b86c 100644
--- a/src/mint/afl-tests/id:000167,src:000000,op:flip1,pos:317,+cov
+++ b/src/exchange/afl-tests/id:000167,src:000000,op:flip1,pos:317,+cov
diff --git a/src/mint/afl-tests/id:000167,src:000000,op:flip1,pos:320,+cov b/src/exchange/afl-tests/id:000167,src:000000,op:flip1,pos:320,+cov
index 1377c1e1a..1377c1e1a 100644
--- a/src/mint/afl-tests/id:000167,src:000000,op:flip1,pos:320,+cov
+++ b/src/exchange/afl-tests/id:000167,src:000000,op:flip1,pos:320,+cov
diff --git a/src/mint/afl-tests/id:000168,src:000000,op:flip1,pos:317,+cov b/src/exchange/afl-tests/id:000168,src:000000,op:flip1,pos:317,+cov
index 2cf0c4083..2cf0c4083 100644
--- a/src/mint/afl-tests/id:000168,src:000000,op:flip1,pos:317,+cov
+++ b/src/exchange/afl-tests/id:000168,src:000000,op:flip1,pos:317,+cov
diff --git a/src/mint/afl-tests/id:000168,src:000000,op:flip1,pos:322,+cov b/src/exchange/afl-tests/id:000168,src:000000,op:flip1,pos:322,+cov
index 9c98b9bee..9c98b9bee 100644
--- a/src/mint/afl-tests/id:000168,src:000000,op:flip1,pos:322,+cov
+++ b/src/exchange/afl-tests/id:000168,src:000000,op:flip1,pos:322,+cov
diff --git a/src/mint/afl-tests/id:000169,src:000000,op:flip1,pos:318,+cov b/src/exchange/afl-tests/id:000169,src:000000,op:flip1,pos:318,+cov
index a9e09aa17..a9e09aa17 100644
--- a/src/mint/afl-tests/id:000169,src:000000,op:flip1,pos:318,+cov
+++ b/src/exchange/afl-tests/id:000169,src:000000,op:flip1,pos:318,+cov
diff --git a/src/mint/afl-tests/id:000169,src:000000,op:flip1,pos:326,+cov b/src/exchange/afl-tests/id:000169,src:000000,op:flip1,pos:326,+cov
index 2cc738060..2cc738060 100644
--- a/src/mint/afl-tests/id:000169,src:000000,op:flip1,pos:326,+cov
+++ b/src/exchange/afl-tests/id:000169,src:000000,op:flip1,pos:326,+cov
diff --git a/src/mint/afl-tests/id:000170,src:000000,op:flip1,pos:319,+cov b/src/exchange/afl-tests/id:000170,src:000000,op:flip1,pos:319,+cov
index 7e894c436..7e894c436 100644
--- a/src/mint/afl-tests/id:000170,src:000000,op:flip1,pos:319,+cov
+++ b/src/exchange/afl-tests/id:000170,src:000000,op:flip1,pos:319,+cov
diff --git a/src/mint/afl-tests/id:000170,src:000000,op:flip1,pos:328,+cov b/src/exchange/afl-tests/id:000170,src:000000,op:flip1,pos:328,+cov
index 7e33b77a7..7e33b77a7 100644
--- a/src/mint/afl-tests/id:000170,src:000000,op:flip1,pos:328,+cov
+++ b/src/exchange/afl-tests/id:000170,src:000000,op:flip1,pos:328,+cov
diff --git a/src/mint/afl-tests/id:000171,src:000000,op:flip1,pos:326,+cov b/src/exchange/afl-tests/id:000171,src:000000,op:flip1,pos:326,+cov
index abb30eaa7..abb30eaa7 100644
--- a/src/mint/afl-tests/id:000171,src:000000,op:flip1,pos:326,+cov
+++ b/src/exchange/afl-tests/id:000171,src:000000,op:flip1,pos:326,+cov
diff --git a/src/mint/afl-tests/id:000171,src:000000,op:flip1,pos:329 b/src/exchange/afl-tests/id:000171,src:000000,op:flip1,pos:329
index 3ec05211c..3ec05211c 100644
--- a/src/mint/afl-tests/id:000171,src:000000,op:flip1,pos:329
+++ b/src/exchange/afl-tests/id:000171,src:000000,op:flip1,pos:329
diff --git a/src/mint/afl-tests/id:000172,src:000000,op:flip1,pos:327 b/src/exchange/afl-tests/id:000172,src:000000,op:flip1,pos:327
index 9298ec0fb..9298ec0fb 100644
--- a/src/mint/afl-tests/id:000172,src:000000,op:flip1,pos:327
+++ b/src/exchange/afl-tests/id:000172,src:000000,op:flip1,pos:327
diff --git a/src/mint/afl-tests/id:000172,src:000000,op:flip1,pos:332,+cov b/src/exchange/afl-tests/id:000172,src:000000,op:flip1,pos:332,+cov
index 87c92e792..87c92e792 100644
--- a/src/mint/afl-tests/id:000172,src:000000,op:flip1,pos:332,+cov
+++ b/src/exchange/afl-tests/id:000172,src:000000,op:flip1,pos:332,+cov
diff --git a/src/mint/afl-tests/id:000173,src:000000,op:flip1,pos:330,+cov b/src/exchange/afl-tests/id:000173,src:000000,op:flip1,pos:330,+cov
index b49ac79e6..b49ac79e6 100644
--- a/src/mint/afl-tests/id:000173,src:000000,op:flip1,pos:330,+cov
+++ b/src/exchange/afl-tests/id:000173,src:000000,op:flip1,pos:330,+cov
diff --git a/src/mint/afl-tests/id:000173,src:000000,op:flip2,pos:8,+cov b/src/exchange/afl-tests/id:000173,src:000000,op:flip2,pos:8,+cov
index 9ff09ec00..9ff09ec00 100644
--- a/src/mint/afl-tests/id:000173,src:000000,op:flip2,pos:8,+cov
+++ b/src/exchange/afl-tests/id:000173,src:000000,op:flip2,pos:8,+cov
diff --git a/src/mint/afl-tests/id:000174,src:000000,op:flip1,pos:331,+cov b/src/exchange/afl-tests/id:000174,src:000000,op:flip1,pos:331,+cov
index 2cd97546c..2cd97546c 100644
--- a/src/mint/afl-tests/id:000174,src:000000,op:flip1,pos:331,+cov
+++ b/src/exchange/afl-tests/id:000174,src:000000,op:flip1,pos:331,+cov
diff --git a/src/mint/afl-tests/id:000174,src:000000,op:flip2,pos:8,+cov b/src/exchange/afl-tests/id:000174,src:000000,op:flip2,pos:8,+cov
index 0a068cdcf..0a068cdcf 100644
--- a/src/mint/afl-tests/id:000174,src:000000,op:flip2,pos:8,+cov
+++ b/src/exchange/afl-tests/id:000174,src:000000,op:flip2,pos:8,+cov
diff --git a/src/mint/afl-tests/id:000175,src:000000,op:flip1,pos:338,+cov b/src/exchange/afl-tests/id:000175,src:000000,op:flip1,pos:338,+cov
index 34b27e1cb..34b27e1cb 100644
--- a/src/mint/afl-tests/id:000175,src:000000,op:flip1,pos:338,+cov
+++ b/src/exchange/afl-tests/id:000175,src:000000,op:flip1,pos:338,+cov
diff --git a/src/mint/afl-tests/id:000175,src:000000,op:flip2,pos:28,+cov b/src/exchange/afl-tests/id:000175,src:000000,op:flip2,pos:28,+cov
index 54e2bb6f1..54e2bb6f1 100644
--- a/src/mint/afl-tests/id:000175,src:000000,op:flip2,pos:28,+cov
+++ b/src/exchange/afl-tests/id:000175,src:000000,op:flip2,pos:28,+cov
diff --git a/src/mint/afl-tests/id:000176,src:000000,op:flip2,pos:30,+cov b/src/exchange/afl-tests/id:000176,src:000000,op:flip2,pos:30,+cov
index 1033ca7a7..1033ca7a7 100644
--- a/src/mint/afl-tests/id:000176,src:000000,op:flip2,pos:30,+cov
+++ b/src/exchange/afl-tests/id:000176,src:000000,op:flip2,pos:30,+cov
diff --git a/src/mint/afl-tests/id:000176,src:000000,op:flip2,pos:8,+cov b/src/exchange/afl-tests/id:000176,src:000000,op:flip2,pos:8,+cov
index 9ff09ec00..9ff09ec00 100644
--- a/src/mint/afl-tests/id:000176,src:000000,op:flip2,pos:8,+cov
+++ b/src/exchange/afl-tests/id:000176,src:000000,op:flip2,pos:8,+cov
diff --git a/src/mint/afl-tests/id:000177,src:000000,op:flip2,pos:25,+cov b/src/exchange/afl-tests/id:000177,src:000000,op:flip2,pos:25,+cov
index d95ac4ee1..d95ac4ee1 100644
--- a/src/mint/afl-tests/id:000177,src:000000,op:flip2,pos:25,+cov
+++ b/src/exchange/afl-tests/id:000177,src:000000,op:flip2,pos:25,+cov
diff --git a/src/mint/afl-tests/id:000177,src:000000,op:flip2,pos:30,+cov b/src/exchange/afl-tests/id:000177,src:000000,op:flip2,pos:30,+cov
index e3781370b..e3781370b 100644
--- a/src/mint/afl-tests/id:000177,src:000000,op:flip2,pos:30,+cov
+++ b/src/exchange/afl-tests/id:000177,src:000000,op:flip2,pos:30,+cov
diff --git a/src/mint/afl-tests/id:000178,src:000000,op:flip2,pos:26,+cov b/src/exchange/afl-tests/id:000178,src:000000,op:flip2,pos:26,+cov
index d66bb178b..d66bb178b 100644
--- a/src/mint/afl-tests/id:000178,src:000000,op:flip2,pos:26,+cov
+++ b/src/exchange/afl-tests/id:000178,src:000000,op:flip2,pos:26,+cov
diff --git a/src/mint/afl-tests/id:000178,src:000000,op:flip2,pos:31,+cov b/src/exchange/afl-tests/id:000178,src:000000,op:flip2,pos:31,+cov
index a971a77ad..a971a77ad 100644
--- a/src/mint/afl-tests/id:000178,src:000000,op:flip2,pos:31,+cov
+++ b/src/exchange/afl-tests/id:000178,src:000000,op:flip2,pos:31,+cov
diff --git a/src/mint/afl-tests/id:000179,src:000000,op:flip2,pos:29,+cov b/src/exchange/afl-tests/id:000179,src:000000,op:flip2,pos:29,+cov
index a84715234..a84715234 100644
--- a/src/mint/afl-tests/id:000179,src:000000,op:flip2,pos:29,+cov
+++ b/src/exchange/afl-tests/id:000179,src:000000,op:flip2,pos:29,+cov
diff --git a/src/mint/afl-tests/id:000179,src:000000,op:flip2,pos:31,+cov b/src/exchange/afl-tests/id:000179,src:000000,op:flip2,pos:31,+cov
index 01cb04198..01cb04198 100644
--- a/src/mint/afl-tests/id:000179,src:000000,op:flip2,pos:31,+cov
+++ b/src/exchange/afl-tests/id:000179,src:000000,op:flip2,pos:31,+cov
diff --git a/src/mint/afl-tests/id:000180,src:000000,op:flip2,pos:30,+cov b/src/exchange/afl-tests/id:000180,src:000000,op:flip2,pos:30,+cov
index 14304bd5b..14304bd5b 100644
--- a/src/mint/afl-tests/id:000180,src:000000,op:flip2,pos:30,+cov
+++ b/src/exchange/afl-tests/id:000180,src:000000,op:flip2,pos:30,+cov
diff --git a/src/mint/afl-tests/id:000180,src:000000,op:flip2,pos:32,+cov b/src/exchange/afl-tests/id:000180,src:000000,op:flip2,pos:32,+cov
index fa68f789c..fa68f789c 100644
--- a/src/mint/afl-tests/id:000180,src:000000,op:flip2,pos:32,+cov
+++ b/src/exchange/afl-tests/id:000180,src:000000,op:flip2,pos:32,+cov
diff --git a/src/mint/afl-tests/id:000181,src:000000,op:flip2,pos:33,+cov b/src/exchange/afl-tests/id:000181,src:000000,op:flip2,pos:33,+cov
index b01ef21d5..b01ef21d5 100644
--- a/src/mint/afl-tests/id:000181,src:000000,op:flip2,pos:33,+cov
+++ b/src/exchange/afl-tests/id:000181,src:000000,op:flip2,pos:33,+cov
diff --git a/src/mint/afl-tests/id:000181,src:000000,op:flip2,pos:36,+cov b/src/exchange/afl-tests/id:000181,src:000000,op:flip2,pos:36,+cov
index ae5dc006b..ae5dc006b 100644
--- a/src/mint/afl-tests/id:000181,src:000000,op:flip2,pos:36,+cov
+++ b/src/exchange/afl-tests/id:000181,src:000000,op:flip2,pos:36,+cov
diff --git a/src/mint/afl-tests/id:000182,src:000000,op:flip2,pos:38 b/src/exchange/afl-tests/id:000182,src:000000,op:flip2,pos:38
index 992a271cf..992a271cf 100644
--- a/src/mint/afl-tests/id:000182,src:000000,op:flip2,pos:38
+++ b/src/exchange/afl-tests/id:000182,src:000000,op:flip2,pos:38
diff --git a/src/mint/afl-tests/id:000183,src:000000,op:flip2,pos:39,+cov b/src/exchange/afl-tests/id:000183,src:000000,op:flip2,pos:39,+cov
index c9ba52ab8..c9ba52ab8 100644
--- a/src/mint/afl-tests/id:000183,src:000000,op:flip2,pos:39,+cov
+++ b/src/exchange/afl-tests/id:000183,src:000000,op:flip2,pos:39,+cov
diff --git a/src/mint/afl-tests/id:000184,src:000000,op:flip2,pos:40,+cov b/src/exchange/afl-tests/id:000184,src:000000,op:flip2,pos:40,+cov
index 51c7e9c45..51c7e9c45 100644
--- a/src/mint/afl-tests/id:000184,src:000000,op:flip2,pos:40,+cov
+++ b/src/exchange/afl-tests/id:000184,src:000000,op:flip2,pos:40,+cov
diff --git a/src/mint/afl-tests/id:000184,src:000000,op:flip2,pos:43,+cov b/src/exchange/afl-tests/id:000184,src:000000,op:flip2,pos:43,+cov
index 4dbf820b7..4dbf820b7 100644
--- a/src/mint/afl-tests/id:000184,src:000000,op:flip2,pos:43,+cov
+++ b/src/exchange/afl-tests/id:000184,src:000000,op:flip2,pos:43,+cov
diff --git a/src/mint/afl-tests/id:000185,src:000000,op:flip2,pos:40,+cov b/src/exchange/afl-tests/id:000185,src:000000,op:flip2,pos:40,+cov
index 8c8a01787..8c8a01787 100644
--- a/src/mint/afl-tests/id:000185,src:000000,op:flip2,pos:40,+cov
+++ b/src/exchange/afl-tests/id:000185,src:000000,op:flip2,pos:40,+cov
diff --git a/src/mint/afl-tests/id:000185,src:000000,op:flip2,pos:49,+cov b/src/exchange/afl-tests/id:000185,src:000000,op:flip2,pos:49,+cov
index 1e1b797a8..1e1b797a8 100644
--- a/src/mint/afl-tests/id:000185,src:000000,op:flip2,pos:49,+cov
+++ b/src/exchange/afl-tests/id:000185,src:000000,op:flip2,pos:49,+cov
diff --git a/src/mint/afl-tests/id:000186,src:000000,op:flip2,pos:40,+cov b/src/exchange/afl-tests/id:000186,src:000000,op:flip2,pos:40,+cov
index 4eaae78e7..4eaae78e7 100644
--- a/src/mint/afl-tests/id:000186,src:000000,op:flip2,pos:40,+cov
+++ b/src/exchange/afl-tests/id:000186,src:000000,op:flip2,pos:40,+cov
diff --git a/src/mint/afl-tests/id:000186,src:000000,op:flip2,pos:54,+cov b/src/exchange/afl-tests/id:000186,src:000000,op:flip2,pos:54,+cov
index e5aa0e1e9..e5aa0e1e9 100644
--- a/src/mint/afl-tests/id:000186,src:000000,op:flip2,pos:54,+cov
+++ b/src/exchange/afl-tests/id:000186,src:000000,op:flip2,pos:54,+cov
diff --git a/src/mint/afl-tests/id:000187,src:000000,op:flip2,pos:46,+cov b/src/exchange/afl-tests/id:000187,src:000000,op:flip2,pos:46,+cov
index 056435f02..056435f02 100644
--- a/src/mint/afl-tests/id:000187,src:000000,op:flip2,pos:46,+cov
+++ b/src/exchange/afl-tests/id:000187,src:000000,op:flip2,pos:46,+cov
diff --git a/src/mint/afl-tests/id:000187,src:000000,op:flip2,pos:60,+cov b/src/exchange/afl-tests/id:000187,src:000000,op:flip2,pos:60,+cov
index 893d717eb..893d717eb 100644
--- a/src/mint/afl-tests/id:000187,src:000000,op:flip2,pos:60,+cov
+++ b/src/exchange/afl-tests/id:000187,src:000000,op:flip2,pos:60,+cov
diff --git a/src/mint/afl-tests/id:000188,src:000000,op:flip2,pos:47,+cov b/src/exchange/afl-tests/id:000188,src:000000,op:flip2,pos:47,+cov
index 32b74c9d2..32b74c9d2 100644
--- a/src/mint/afl-tests/id:000188,src:000000,op:flip2,pos:47,+cov
+++ b/src/exchange/afl-tests/id:000188,src:000000,op:flip2,pos:47,+cov
diff --git a/src/mint/afl-tests/id:000188,src:000000,op:flip2,pos:64,+cov b/src/exchange/afl-tests/id:000188,src:000000,op:flip2,pos:64,+cov
index eaf966e60..eaf966e60 100644
--- a/src/mint/afl-tests/id:000188,src:000000,op:flip2,pos:64,+cov
+++ b/src/exchange/afl-tests/id:000188,src:000000,op:flip2,pos:64,+cov
diff --git a/src/mint/afl-tests/id:000189,src:000000,op:flip2,pos:48,+cov b/src/exchange/afl-tests/id:000189,src:000000,op:flip2,pos:48,+cov
index 1f24723d0..1f24723d0 100644
--- a/src/mint/afl-tests/id:000189,src:000000,op:flip2,pos:48,+cov
+++ b/src/exchange/afl-tests/id:000189,src:000000,op:flip2,pos:48,+cov
diff --git a/src/mint/afl-tests/id:000189,src:000000,op:flip2,pos:69,+cov b/src/exchange/afl-tests/id:000189,src:000000,op:flip2,pos:69,+cov
index 5497f76e1..5497f76e1 100644
--- a/src/mint/afl-tests/id:000189,src:000000,op:flip2,pos:69,+cov
+++ b/src/exchange/afl-tests/id:000189,src:000000,op:flip2,pos:69,+cov
diff --git a/src/mint/afl-tests/id:000190,src:000000,op:flip2,pos:49,+cov b/src/exchange/afl-tests/id:000190,src:000000,op:flip2,pos:49,+cov
index d89386901..d89386901 100644
--- a/src/mint/afl-tests/id:000190,src:000000,op:flip2,pos:49,+cov
+++ b/src/exchange/afl-tests/id:000190,src:000000,op:flip2,pos:49,+cov
diff --git a/src/mint/afl-tests/id:000190,src:000000,op:flip2,pos:71,+cov b/src/exchange/afl-tests/id:000190,src:000000,op:flip2,pos:71,+cov
index 061610e8a..061610e8a 100644
--- a/src/mint/afl-tests/id:000190,src:000000,op:flip2,pos:71,+cov
+++ b/src/exchange/afl-tests/id:000190,src:000000,op:flip2,pos:71,+cov
diff --git a/src/mint/afl-tests/id:000191,src:000000,op:flip2,pos:53,+cov b/src/exchange/afl-tests/id:000191,src:000000,op:flip2,pos:53,+cov
index ef622680e..ef622680e 100644
--- a/src/mint/afl-tests/id:000191,src:000000,op:flip2,pos:53,+cov
+++ b/src/exchange/afl-tests/id:000191,src:000000,op:flip2,pos:53,+cov
diff --git a/src/mint/afl-tests/id:000191,src:000000,op:flip2,pos:73,+cov b/src/exchange/afl-tests/id:000191,src:000000,op:flip2,pos:73,+cov
index 48a579fc9..48a579fc9 100644
--- a/src/mint/afl-tests/id:000191,src:000000,op:flip2,pos:73,+cov
+++ b/src/exchange/afl-tests/id:000191,src:000000,op:flip2,pos:73,+cov
diff --git a/src/mint/afl-tests/id:000192,src:000000,op:flip2,pos:53,+cov b/src/exchange/afl-tests/id:000192,src:000000,op:flip2,pos:53,+cov
index 5921e3b00..5921e3b00 100644
--- a/src/mint/afl-tests/id:000192,src:000000,op:flip2,pos:53,+cov
+++ b/src/exchange/afl-tests/id:000192,src:000000,op:flip2,pos:53,+cov
diff --git a/src/mint/afl-tests/id:000192,src:000000,op:flip2,pos:73,+cov b/src/exchange/afl-tests/id:000192,src:000000,op:flip2,pos:73,+cov
index 92a71100e..92a71100e 100644
--- a/src/mint/afl-tests/id:000192,src:000000,op:flip2,pos:73,+cov
+++ b/src/exchange/afl-tests/id:000192,src:000000,op:flip2,pos:73,+cov
diff --git a/src/mint/afl-tests/id:000193,src:000000,op:flip2,pos:62,+cov b/src/exchange/afl-tests/id:000193,src:000000,op:flip2,pos:62,+cov
index 49fd2ead1..49fd2ead1 100644
--- a/src/mint/afl-tests/id:000193,src:000000,op:flip2,pos:62,+cov
+++ b/src/exchange/afl-tests/id:000193,src:000000,op:flip2,pos:62,+cov
diff --git a/src/mint/afl-tests/id:000193,src:000000,op:flip2,pos:75 b/src/exchange/afl-tests/id:000193,src:000000,op:flip2,pos:75
index 7d1211bda..7d1211bda 100644
--- a/src/mint/afl-tests/id:000193,src:000000,op:flip2,pos:75
+++ b/src/exchange/afl-tests/id:000193,src:000000,op:flip2,pos:75
diff --git a/src/mint/afl-tests/id:000194,src:000000,op:flip2,pos:68,+cov b/src/exchange/afl-tests/id:000194,src:000000,op:flip2,pos:68,+cov
index c7bf5b290..c7bf5b290 100644
--- a/src/mint/afl-tests/id:000194,src:000000,op:flip2,pos:68,+cov
+++ b/src/exchange/afl-tests/id:000194,src:000000,op:flip2,pos:68,+cov
diff --git a/src/mint/afl-tests/id:000194,src:000000,op:flip2,pos:77,+cov b/src/exchange/afl-tests/id:000194,src:000000,op:flip2,pos:77,+cov
index 9366d52cf..9366d52cf 100644
--- a/src/mint/afl-tests/id:000194,src:000000,op:flip2,pos:77,+cov
+++ b/src/exchange/afl-tests/id:000194,src:000000,op:flip2,pos:77,+cov
diff --git a/src/mint/afl-tests/id:000195,src:000000,op:flip2,pos:70,+cov b/src/exchange/afl-tests/id:000195,src:000000,op:flip2,pos:70,+cov
index 293fa034f..293fa034f 100644
--- a/src/mint/afl-tests/id:000195,src:000000,op:flip2,pos:70,+cov
+++ b/src/exchange/afl-tests/id:000195,src:000000,op:flip2,pos:70,+cov
diff --git a/src/mint/afl-tests/id:000195,src:000000,op:flip2,pos:81,+cov b/src/exchange/afl-tests/id:000195,src:000000,op:flip2,pos:81,+cov
index 26524efd7..26524efd7 100644
--- a/src/mint/afl-tests/id:000195,src:000000,op:flip2,pos:81,+cov
+++ b/src/exchange/afl-tests/id:000195,src:000000,op:flip2,pos:81,+cov
diff --git a/src/mint/afl-tests/id:000196,src:000000,op:flip2,pos:73,+cov b/src/exchange/afl-tests/id:000196,src:000000,op:flip2,pos:73,+cov
index 28df18f79..28df18f79 100644
--- a/src/mint/afl-tests/id:000196,src:000000,op:flip2,pos:73,+cov
+++ b/src/exchange/afl-tests/id:000196,src:000000,op:flip2,pos:73,+cov
diff --git a/src/mint/afl-tests/id:000196,src:000000,op:flip2,pos:81,+cov b/src/exchange/afl-tests/id:000196,src:000000,op:flip2,pos:81,+cov
index a90cbb1fa..a90cbb1fa 100644
--- a/src/mint/afl-tests/id:000196,src:000000,op:flip2,pos:81,+cov
+++ b/src/exchange/afl-tests/id:000196,src:000000,op:flip2,pos:81,+cov
diff --git a/src/mint/afl-tests/id:000197,src:000000,op:flip2,pos:73,+cov b/src/exchange/afl-tests/id:000197,src:000000,op:flip2,pos:73,+cov
index 1da0cd778..1da0cd778 100644
--- a/src/mint/afl-tests/id:000197,src:000000,op:flip2,pos:73,+cov
+++ b/src/exchange/afl-tests/id:000197,src:000000,op:flip2,pos:73,+cov
diff --git a/src/mint/afl-tests/id:000197,src:000000,op:flip2,pos:83,+cov b/src/exchange/afl-tests/id:000197,src:000000,op:flip2,pos:83,+cov
index 5128e6a6d..5128e6a6d 100644
--- a/src/mint/afl-tests/id:000197,src:000000,op:flip2,pos:83,+cov
+++ b/src/exchange/afl-tests/id:000197,src:000000,op:flip2,pos:83,+cov
diff --git a/src/mint/afl-tests/id:000198,src:000000,op:flip2,pos:76,+cov b/src/exchange/afl-tests/id:000198,src:000000,op:flip2,pos:76,+cov
index dc134aaa6..dc134aaa6 100644
--- a/src/mint/afl-tests/id:000198,src:000000,op:flip2,pos:76,+cov
+++ b/src/exchange/afl-tests/id:000198,src:000000,op:flip2,pos:76,+cov
diff --git a/src/mint/afl-tests/id:000198,src:000000,op:flip2,pos:84,+cov b/src/exchange/afl-tests/id:000198,src:000000,op:flip2,pos:84,+cov
index 316809df4..316809df4 100644
--- a/src/mint/afl-tests/id:000198,src:000000,op:flip2,pos:84,+cov
+++ b/src/exchange/afl-tests/id:000198,src:000000,op:flip2,pos:84,+cov
diff --git a/src/mint/afl-tests/id:000199,src:000000,op:flip2,pos:76,+cov b/src/exchange/afl-tests/id:000199,src:000000,op:flip2,pos:76,+cov
index dfa6ef91f..dfa6ef91f 100644
--- a/src/mint/afl-tests/id:000199,src:000000,op:flip2,pos:76,+cov
+++ b/src/exchange/afl-tests/id:000199,src:000000,op:flip2,pos:76,+cov
diff --git a/src/mint/afl-tests/id:000199,src:000000,op:flip2,pos:85,+cov b/src/exchange/afl-tests/id:000199,src:000000,op:flip2,pos:85,+cov
index 0fe9dc00e..0fe9dc00e 100644
--- a/src/mint/afl-tests/id:000199,src:000000,op:flip2,pos:85,+cov
+++ b/src/exchange/afl-tests/id:000199,src:000000,op:flip2,pos:85,+cov
diff --git a/src/mint/afl-tests/id:000200,src:000000,op:flip2,pos:80,+cov b/src/exchange/afl-tests/id:000200,src:000000,op:flip2,pos:80,+cov
index 7c0365559..7c0365559 100644
--- a/src/mint/afl-tests/id:000200,src:000000,op:flip2,pos:80,+cov
+++ b/src/exchange/afl-tests/id:000200,src:000000,op:flip2,pos:80,+cov
diff --git a/src/mint/afl-tests/id:000200,src:000000,op:flip2,pos:86,+cov b/src/exchange/afl-tests/id:000200,src:000000,op:flip2,pos:86,+cov
index b4dc10232..b4dc10232 100644
--- a/src/mint/afl-tests/id:000200,src:000000,op:flip2,pos:86,+cov
+++ b/src/exchange/afl-tests/id:000200,src:000000,op:flip2,pos:86,+cov
diff --git a/src/mint/afl-tests/id:000201,src:000000,op:flip2,pos:86,+cov b/src/exchange/afl-tests/id:000201,src:000000,op:flip2,pos:86,+cov
index b4dc10232..b4dc10232 100644
--- a/src/mint/afl-tests/id:000201,src:000000,op:flip2,pos:86,+cov
+++ b/src/exchange/afl-tests/id:000201,src:000000,op:flip2,pos:86,+cov
diff --git a/src/mint/afl-tests/id:000201,src:000000,op:flip2,pos:89,+cov b/src/exchange/afl-tests/id:000201,src:000000,op:flip2,pos:89,+cov
index 93540b4e9..93540b4e9 100644
--- a/src/mint/afl-tests/id:000201,src:000000,op:flip2,pos:89,+cov
+++ b/src/exchange/afl-tests/id:000201,src:000000,op:flip2,pos:89,+cov
diff --git a/src/mint/afl-tests/id:000202,src:000000,op:flip2,pos:101,+cov b/src/exchange/afl-tests/id:000202,src:000000,op:flip2,pos:101,+cov
index 0bb944dac..0bb944dac 100644
--- a/src/mint/afl-tests/id:000202,src:000000,op:flip2,pos:101,+cov
+++ b/src/exchange/afl-tests/id:000202,src:000000,op:flip2,pos:101,+cov
diff --git a/src/mint/afl-tests/id:000202,src:000000,op:flip2,pos:90,+cov b/src/exchange/afl-tests/id:000202,src:000000,op:flip2,pos:90,+cov
index 3e2909dcb..3e2909dcb 100644
--- a/src/mint/afl-tests/id:000202,src:000000,op:flip2,pos:90,+cov
+++ b/src/exchange/afl-tests/id:000202,src:000000,op:flip2,pos:90,+cov
diff --git a/src/mint/afl-tests/id:000203,src:000000,op:flip2,pos:114 b/src/exchange/afl-tests/id:000203,src:000000,op:flip2,pos:114
index b2a169737..b2a169737 100644
--- a/src/mint/afl-tests/id:000203,src:000000,op:flip2,pos:114
+++ b/src/exchange/afl-tests/id:000203,src:000000,op:flip2,pos:114
diff --git a/src/mint/afl-tests/id:000203,src:000000,op:flip2,pos:93,+cov b/src/exchange/afl-tests/id:000203,src:000000,op:flip2,pos:93,+cov
index f797a1823..f797a1823 100644
--- a/src/mint/afl-tests/id:000203,src:000000,op:flip2,pos:93,+cov
+++ b/src/exchange/afl-tests/id:000203,src:000000,op:flip2,pos:93,+cov
diff --git a/src/mint/afl-tests/id:000204,src:000000,op:flip2,pos:100,+cov b/src/exchange/afl-tests/id:000204,src:000000,op:flip2,pos:100,+cov
index 76f5d0f22..76f5d0f22 100644
--- a/src/mint/afl-tests/id:000204,src:000000,op:flip2,pos:100,+cov
+++ b/src/exchange/afl-tests/id:000204,src:000000,op:flip2,pos:100,+cov
diff --git a/src/mint/afl-tests/id:000204,src:000000,op:flip2,pos:115,+cov b/src/exchange/afl-tests/id:000204,src:000000,op:flip2,pos:115,+cov
index ded00778e..ded00778e 100644
--- a/src/mint/afl-tests/id:000204,src:000000,op:flip2,pos:115,+cov
+++ b/src/exchange/afl-tests/id:000204,src:000000,op:flip2,pos:115,+cov
diff --git a/src/mint/afl-tests/id:000205,src:000000,op:flip2,pos:114 b/src/exchange/afl-tests/id:000205,src:000000,op:flip2,pos:114
index b2a169737..b2a169737 100644
--- a/src/mint/afl-tests/id:000205,src:000000,op:flip2,pos:114
+++ b/src/exchange/afl-tests/id:000205,src:000000,op:flip2,pos:114
diff --git a/src/mint/afl-tests/id:000205,src:000000,op:flip2,pos:116,+cov b/src/exchange/afl-tests/id:000205,src:000000,op:flip2,pos:116,+cov
index ad22cff45..ad22cff45 100644
--- a/src/mint/afl-tests/id:000205,src:000000,op:flip2,pos:116,+cov
+++ b/src/exchange/afl-tests/id:000205,src:000000,op:flip2,pos:116,+cov
diff --git a/src/mint/afl-tests/id:000206,src:000000,op:flip2,pos:115,+cov b/src/exchange/afl-tests/id:000206,src:000000,op:flip2,pos:115,+cov
index ded00778e..ded00778e 100644
--- a/src/mint/afl-tests/id:000206,src:000000,op:flip2,pos:115,+cov
+++ b/src/exchange/afl-tests/id:000206,src:000000,op:flip2,pos:115,+cov
diff --git a/src/mint/afl-tests/id:000206,src:000000,op:flip2,pos:140,+cov b/src/exchange/afl-tests/id:000206,src:000000,op:flip2,pos:140,+cov
index 329b0471d..329b0471d 100644
--- a/src/mint/afl-tests/id:000206,src:000000,op:flip2,pos:140,+cov
+++ b/src/exchange/afl-tests/id:000206,src:000000,op:flip2,pos:140,+cov
diff --git a/src/mint/afl-tests/id:000207,src:000000,op:flip2,pos:116,+cov b/src/exchange/afl-tests/id:000207,src:000000,op:flip2,pos:116,+cov
index ad22cff45..ad22cff45 100644
--- a/src/mint/afl-tests/id:000207,src:000000,op:flip2,pos:116,+cov
+++ b/src/exchange/afl-tests/id:000207,src:000000,op:flip2,pos:116,+cov
diff --git a/src/mint/afl-tests/id:000207,src:000000,op:flip2,pos:140,+cov b/src/exchange/afl-tests/id:000207,src:000000,op:flip2,pos:140,+cov
index 8619aa59e..8619aa59e 100644
--- a/src/mint/afl-tests/id:000207,src:000000,op:flip2,pos:140,+cov
+++ b/src/exchange/afl-tests/id:000207,src:000000,op:flip2,pos:140,+cov
diff --git a/src/mint/afl-tests/id:000208,src:000000,op:flip2,pos:124,+cov b/src/exchange/afl-tests/id:000208,src:000000,op:flip2,pos:124,+cov
index 0959d3c40..0959d3c40 100644
--- a/src/mint/afl-tests/id:000208,src:000000,op:flip2,pos:124,+cov
+++ b/src/exchange/afl-tests/id:000208,src:000000,op:flip2,pos:124,+cov
diff --git a/src/mint/afl-tests/id:000208,src:000000,op:flip2,pos:146,+cov b/src/exchange/afl-tests/id:000208,src:000000,op:flip2,pos:146,+cov
index 6f9d0856a..6f9d0856a 100644
--- a/src/mint/afl-tests/id:000208,src:000000,op:flip2,pos:146,+cov
+++ b/src/exchange/afl-tests/id:000208,src:000000,op:flip2,pos:146,+cov
diff --git a/src/mint/afl-tests/id:000209,src:000000,op:flip2,pos:135,+cov b/src/exchange/afl-tests/id:000209,src:000000,op:flip2,pos:135,+cov
index 25b4e53f1..25b4e53f1 100644
--- a/src/mint/afl-tests/id:000209,src:000000,op:flip2,pos:135,+cov
+++ b/src/exchange/afl-tests/id:000209,src:000000,op:flip2,pos:135,+cov
diff --git a/src/mint/afl-tests/id:000209,src:000000,op:flip2,pos:147,+cov b/src/exchange/afl-tests/id:000209,src:000000,op:flip2,pos:147,+cov
index 0ea0cd724..0ea0cd724 100644
--- a/src/mint/afl-tests/id:000209,src:000000,op:flip2,pos:147,+cov
+++ b/src/exchange/afl-tests/id:000209,src:000000,op:flip2,pos:147,+cov
diff --git a/src/mint/afl-tests/id:000210,src:000000,op:flip2,pos:137,+cov b/src/exchange/afl-tests/id:000210,src:000000,op:flip2,pos:137,+cov
index 74fbfe941..74fbfe941 100644
--- a/src/mint/afl-tests/id:000210,src:000000,op:flip2,pos:137,+cov
+++ b/src/exchange/afl-tests/id:000210,src:000000,op:flip2,pos:137,+cov
diff --git a/src/mint/afl-tests/id:000210,src:000000,op:flip2,pos:148,+cov b/src/exchange/afl-tests/id:000210,src:000000,op:flip2,pos:148,+cov
index af64a4be4..af64a4be4 100644
--- a/src/mint/afl-tests/id:000210,src:000000,op:flip2,pos:148,+cov
+++ b/src/exchange/afl-tests/id:000210,src:000000,op:flip2,pos:148,+cov
diff --git a/src/mint/afl-tests/id:000211,src:000000,op:flip2,pos:138,+cov b/src/exchange/afl-tests/id:000211,src:000000,op:flip2,pos:138,+cov
index 793d151f4..793d151f4 100644
--- a/src/mint/afl-tests/id:000211,src:000000,op:flip2,pos:138,+cov
+++ b/src/exchange/afl-tests/id:000211,src:000000,op:flip2,pos:138,+cov
diff --git a/src/mint/afl-tests/id:000211,src:000000,op:flip2,pos:148,+cov b/src/exchange/afl-tests/id:000211,src:000000,op:flip2,pos:148,+cov
index b4cc99427..b4cc99427 100644
--- a/src/mint/afl-tests/id:000211,src:000000,op:flip2,pos:148,+cov
+++ b/src/exchange/afl-tests/id:000211,src:000000,op:flip2,pos:148,+cov
diff --git a/src/mint/afl-tests/id:000212,src:000000,op:flip2,pos:138,+cov b/src/exchange/afl-tests/id:000212,src:000000,op:flip2,pos:138,+cov
index cf9fd94ed..cf9fd94ed 100644
--- a/src/mint/afl-tests/id:000212,src:000000,op:flip2,pos:138,+cov
+++ b/src/exchange/afl-tests/id:000212,src:000000,op:flip2,pos:138,+cov
diff --git a/src/mint/afl-tests/id:000212,src:000000,op:flip2,pos:159,+cov b/src/exchange/afl-tests/id:000212,src:000000,op:flip2,pos:159,+cov
index 5858dac25..5858dac25 100644
--- a/src/mint/afl-tests/id:000212,src:000000,op:flip2,pos:159,+cov
+++ b/src/exchange/afl-tests/id:000212,src:000000,op:flip2,pos:159,+cov
diff --git a/src/mint/afl-tests/id:000213,src:000000,op:flip2,pos:139,+cov b/src/exchange/afl-tests/id:000213,src:000000,op:flip2,pos:139,+cov
index de8783260..de8783260 100644
--- a/src/mint/afl-tests/id:000213,src:000000,op:flip2,pos:139,+cov
+++ b/src/exchange/afl-tests/id:000213,src:000000,op:flip2,pos:139,+cov
diff --git a/src/mint/afl-tests/id:000213,src:000000,op:flip2,pos:161,+cov b/src/exchange/afl-tests/id:000213,src:000000,op:flip2,pos:161,+cov
index 2893929d1..2893929d1 100644
--- a/src/mint/afl-tests/id:000213,src:000000,op:flip2,pos:161,+cov
+++ b/src/exchange/afl-tests/id:000213,src:000000,op:flip2,pos:161,+cov
diff --git a/src/mint/afl-tests/id:000214,src:000000,op:flip2,pos:143,+cov b/src/exchange/afl-tests/id:000214,src:000000,op:flip2,pos:143,+cov
index a9c5224fb..a9c5224fb 100644
--- a/src/mint/afl-tests/id:000214,src:000000,op:flip2,pos:143,+cov
+++ b/src/exchange/afl-tests/id:000214,src:000000,op:flip2,pos:143,+cov
diff --git a/src/mint/afl-tests/id:000214,src:000000,op:flip2,pos:164,+cov b/src/exchange/afl-tests/id:000214,src:000000,op:flip2,pos:164,+cov
index 49cb9c9b6..49cb9c9b6 100644
--- a/src/mint/afl-tests/id:000214,src:000000,op:flip2,pos:164,+cov
+++ b/src/exchange/afl-tests/id:000214,src:000000,op:flip2,pos:164,+cov
diff --git a/src/mint/afl-tests/id:000215,src:000000,op:flip2,pos:146,+cov b/src/exchange/afl-tests/id:000215,src:000000,op:flip2,pos:146,+cov
index 78ba2ab50..78ba2ab50 100644
--- a/src/mint/afl-tests/id:000215,src:000000,op:flip2,pos:146,+cov
+++ b/src/exchange/afl-tests/id:000215,src:000000,op:flip2,pos:146,+cov
diff --git a/src/mint/afl-tests/id:000215,src:000000,op:flip2,pos:164,+cov b/src/exchange/afl-tests/id:000215,src:000000,op:flip2,pos:164,+cov
index 3f08906bf..3f08906bf 100644
--- a/src/mint/afl-tests/id:000215,src:000000,op:flip2,pos:164,+cov
+++ b/src/exchange/afl-tests/id:000215,src:000000,op:flip2,pos:164,+cov
diff --git a/src/mint/afl-tests/id:000216,src:000000,op:flip2,pos:156,+cov b/src/exchange/afl-tests/id:000216,src:000000,op:flip2,pos:156,+cov
index 9a73dfa8c..9a73dfa8c 100644
--- a/src/mint/afl-tests/id:000216,src:000000,op:flip2,pos:156,+cov
+++ b/src/exchange/afl-tests/id:000216,src:000000,op:flip2,pos:156,+cov
diff --git a/src/mint/afl-tests/id:000216,src:000000,op:flip2,pos:166,+cov b/src/exchange/afl-tests/id:000216,src:000000,op:flip2,pos:166,+cov
index 6c9179075..6c9179075 100644
--- a/src/mint/afl-tests/id:000216,src:000000,op:flip2,pos:166,+cov
+++ b/src/exchange/afl-tests/id:000216,src:000000,op:flip2,pos:166,+cov
diff --git a/src/mint/afl-tests/id:000217,src:000000,op:flip2,pos:161,+cov b/src/exchange/afl-tests/id:000217,src:000000,op:flip2,pos:161,+cov
index 4fd4660d6..4fd4660d6 100644
--- a/src/mint/afl-tests/id:000217,src:000000,op:flip2,pos:161,+cov
+++ b/src/exchange/afl-tests/id:000217,src:000000,op:flip2,pos:161,+cov
diff --git a/src/mint/afl-tests/id:000217,src:000000,op:flip2,pos:170,+cov b/src/exchange/afl-tests/id:000217,src:000000,op:flip2,pos:170,+cov
index 39b8b5fd0..39b8b5fd0 100644
--- a/src/mint/afl-tests/id:000217,src:000000,op:flip2,pos:170,+cov
+++ b/src/exchange/afl-tests/id:000217,src:000000,op:flip2,pos:170,+cov
diff --git a/src/mint/afl-tests/id:000218,src:000000,op:flip2,pos:171,+cov b/src/exchange/afl-tests/id:000218,src:000000,op:flip2,pos:171,+cov
index 0de4d5016..0de4d5016 100644
--- a/src/mint/afl-tests/id:000218,src:000000,op:flip2,pos:171,+cov
+++ b/src/exchange/afl-tests/id:000218,src:000000,op:flip2,pos:171,+cov
diff --git a/src/mint/afl-tests/id:000218,src:000000,op:flip2,pos:176,+cov b/src/exchange/afl-tests/id:000218,src:000000,op:flip2,pos:176,+cov
index 5093d164a..5093d164a 100644
--- a/src/mint/afl-tests/id:000218,src:000000,op:flip2,pos:176,+cov
+++ b/src/exchange/afl-tests/id:000218,src:000000,op:flip2,pos:176,+cov
diff --git a/src/mint/afl-tests/id:000219,src:000000,op:flip2,pos:180 b/src/exchange/afl-tests/id:000219,src:000000,op:flip2,pos:180
index 79acdcf82..79acdcf82 100644
--- a/src/mint/afl-tests/id:000219,src:000000,op:flip2,pos:180
+++ b/src/exchange/afl-tests/id:000219,src:000000,op:flip2,pos:180
diff --git a/src/mint/afl-tests/id:000219,src:000000,op:flip2,pos:185,+cov b/src/exchange/afl-tests/id:000219,src:000000,op:flip2,pos:185,+cov
index db7216b13..db7216b13 100644
--- a/src/mint/afl-tests/id:000219,src:000000,op:flip2,pos:185,+cov
+++ b/src/exchange/afl-tests/id:000219,src:000000,op:flip2,pos:185,+cov
diff --git a/src/mint/afl-tests/id:000220,src:000000,op:flip2,pos:184,+cov b/src/exchange/afl-tests/id:000220,src:000000,op:flip2,pos:184,+cov
index 51e282862..51e282862 100644
--- a/src/mint/afl-tests/id:000220,src:000000,op:flip2,pos:184,+cov
+++ b/src/exchange/afl-tests/id:000220,src:000000,op:flip2,pos:184,+cov
diff --git a/src/mint/afl-tests/id:000220,src:000000,op:flip2,pos:193,+cov b/src/exchange/afl-tests/id:000220,src:000000,op:flip2,pos:193,+cov
index feb858ad0..feb858ad0 100644
--- a/src/mint/afl-tests/id:000220,src:000000,op:flip2,pos:193,+cov
+++ b/src/exchange/afl-tests/id:000220,src:000000,op:flip2,pos:193,+cov
diff --git a/src/mint/afl-tests/id:000221,src:000000,op:flip2,pos:211,+cov b/src/exchange/afl-tests/id:000221,src:000000,op:flip2,pos:211,+cov
index 82e190d20..82e190d20 100644
--- a/src/mint/afl-tests/id:000221,src:000000,op:flip2,pos:211,+cov
+++ b/src/exchange/afl-tests/id:000221,src:000000,op:flip2,pos:211,+cov
diff --git a/src/mint/afl-tests/id:000221,src:000000,op:flip2,pos:226,+cov b/src/exchange/afl-tests/id:000221,src:000000,op:flip2,pos:226,+cov
index 5ecc312d5..5ecc312d5 100644
--- a/src/mint/afl-tests/id:000221,src:000000,op:flip2,pos:226,+cov
+++ b/src/exchange/afl-tests/id:000221,src:000000,op:flip2,pos:226,+cov
diff --git a/src/mint/afl-tests/id:000222,src:000000,op:flip2,pos:218,+cov b/src/exchange/afl-tests/id:000222,src:000000,op:flip2,pos:218,+cov
index ca0c4b6ed..ca0c4b6ed 100644
--- a/src/mint/afl-tests/id:000222,src:000000,op:flip2,pos:218,+cov
+++ b/src/exchange/afl-tests/id:000222,src:000000,op:flip2,pos:218,+cov
diff --git a/src/mint/afl-tests/id:000222,src:000000,op:flip2,pos:232,+cov b/src/exchange/afl-tests/id:000222,src:000000,op:flip2,pos:232,+cov
index e0132c0dc..e0132c0dc 100644
--- a/src/mint/afl-tests/id:000222,src:000000,op:flip2,pos:232,+cov
+++ b/src/exchange/afl-tests/id:000222,src:000000,op:flip2,pos:232,+cov
diff --git a/src/mint/afl-tests/id:000223,src:000000,op:flip2,pos:239,+cov b/src/exchange/afl-tests/id:000223,src:000000,op:flip2,pos:239,+cov
index 8c26a19a4..8c26a19a4 100644
--- a/src/mint/afl-tests/id:000223,src:000000,op:flip2,pos:239,+cov
+++ b/src/exchange/afl-tests/id:000223,src:000000,op:flip2,pos:239,+cov
diff --git a/src/mint/afl-tests/id:000223,src:000000,op:flip2,pos:271,+cov b/src/exchange/afl-tests/id:000223,src:000000,op:flip2,pos:271,+cov
index 6e0e9f400..6e0e9f400 100644
--- a/src/mint/afl-tests/id:000223,src:000000,op:flip2,pos:271,+cov
+++ b/src/exchange/afl-tests/id:000223,src:000000,op:flip2,pos:271,+cov
diff --git a/src/mint/afl-tests/id:000224,src:000000,op:flip2,pos:241,+cov b/src/exchange/afl-tests/id:000224,src:000000,op:flip2,pos:241,+cov
index bf6eb8a80..bf6eb8a80 100644
--- a/src/mint/afl-tests/id:000224,src:000000,op:flip2,pos:241,+cov
+++ b/src/exchange/afl-tests/id:000224,src:000000,op:flip2,pos:241,+cov
diff --git a/src/mint/afl-tests/id:000224,src:000000,op:flip2,pos:279,+cov b/src/exchange/afl-tests/id:000224,src:000000,op:flip2,pos:279,+cov
index 0ce3373a5..0ce3373a5 100644
--- a/src/mint/afl-tests/id:000224,src:000000,op:flip2,pos:279,+cov
+++ b/src/exchange/afl-tests/id:000224,src:000000,op:flip2,pos:279,+cov
diff --git a/src/mint/afl-tests/id:000225,src:000000,op:flip2,pos:250,+cov b/src/exchange/afl-tests/id:000225,src:000000,op:flip2,pos:250,+cov
index 13301bc06..13301bc06 100644
--- a/src/mint/afl-tests/id:000225,src:000000,op:flip2,pos:250,+cov
+++ b/src/exchange/afl-tests/id:000225,src:000000,op:flip2,pos:250,+cov
diff --git a/src/mint/afl-tests/id:000225,src:000000,op:flip2,pos:308,+cov b/src/exchange/afl-tests/id:000225,src:000000,op:flip2,pos:308,+cov
index 811ade108..811ade108 100644
--- a/src/mint/afl-tests/id:000225,src:000000,op:flip2,pos:308,+cov
+++ b/src/exchange/afl-tests/id:000225,src:000000,op:flip2,pos:308,+cov
diff --git a/src/mint/afl-tests/id:000226,src:000000,op:flip2,pos:272,+cov b/src/exchange/afl-tests/id:000226,src:000000,op:flip2,pos:272,+cov
index 6185b798b..6185b798b 100644
--- a/src/mint/afl-tests/id:000226,src:000000,op:flip2,pos:272,+cov
+++ b/src/exchange/afl-tests/id:000226,src:000000,op:flip2,pos:272,+cov
diff --git a/src/mint/afl-tests/id:000226,src:000000,op:flip2,pos:315,+cov b/src/exchange/afl-tests/id:000226,src:000000,op:flip2,pos:315,+cov
index e13564fa3..e13564fa3 100644
--- a/src/mint/afl-tests/id:000226,src:000000,op:flip2,pos:315,+cov
+++ b/src/exchange/afl-tests/id:000226,src:000000,op:flip2,pos:315,+cov
diff --git a/src/mint/afl-tests/id:000227,src:000000,op:flip2,pos:277,+cov b/src/exchange/afl-tests/id:000227,src:000000,op:flip2,pos:277,+cov
index 0925b5182..0925b5182 100644
--- a/src/mint/afl-tests/id:000227,src:000000,op:flip2,pos:277,+cov
+++ b/src/exchange/afl-tests/id:000227,src:000000,op:flip2,pos:277,+cov
diff --git a/src/mint/afl-tests/id:000227,src:000000,op:flip2,pos:316,+cov b/src/exchange/afl-tests/id:000227,src:000000,op:flip2,pos:316,+cov
index f9b1c51be..f9b1c51be 100644
--- a/src/mint/afl-tests/id:000227,src:000000,op:flip2,pos:316,+cov
+++ b/src/exchange/afl-tests/id:000227,src:000000,op:flip2,pos:316,+cov
diff --git a/src/mint/afl-tests/id:000228,src:000000,op:flip2,pos:316,+cov b/src/exchange/afl-tests/id:000228,src:000000,op:flip2,pos:316,+cov
index e0c541cb4..e0c541cb4 100644
--- a/src/mint/afl-tests/id:000228,src:000000,op:flip2,pos:316,+cov
+++ b/src/exchange/afl-tests/id:000228,src:000000,op:flip2,pos:316,+cov
diff --git a/src/mint/afl-tests/id:000228,src:000000,op:flip2,pos:317,+cov b/src/exchange/afl-tests/id:000228,src:000000,op:flip2,pos:317,+cov
index 2f69f6e0d..2f69f6e0d 100644
--- a/src/mint/afl-tests/id:000228,src:000000,op:flip2,pos:317,+cov
+++ b/src/exchange/afl-tests/id:000228,src:000000,op:flip2,pos:317,+cov
diff --git a/src/mint/afl-tests/id:000229,src:000000,op:flip2,pos:316,+cov b/src/exchange/afl-tests/id:000229,src:000000,op:flip2,pos:316,+cov
index 02451d3ed..02451d3ed 100644
--- a/src/mint/afl-tests/id:000229,src:000000,op:flip2,pos:316,+cov
+++ b/src/exchange/afl-tests/id:000229,src:000000,op:flip2,pos:316,+cov
diff --git a/src/mint/afl-tests/id:000229,src:000000,op:flip2,pos:319,+cov b/src/exchange/afl-tests/id:000229,src:000000,op:flip2,pos:319,+cov
index 10acc6d6c..10acc6d6c 100644
--- a/src/mint/afl-tests/id:000229,src:000000,op:flip2,pos:319,+cov
+++ b/src/exchange/afl-tests/id:000229,src:000000,op:flip2,pos:319,+cov
diff --git a/src/mint/afl-tests/id:000230,src:000000,op:flip2,pos:316,+cov b/src/exchange/afl-tests/id:000230,src:000000,op:flip2,pos:316,+cov
index 57b65c8fa..57b65c8fa 100644
--- a/src/mint/afl-tests/id:000230,src:000000,op:flip2,pos:316,+cov
+++ b/src/exchange/afl-tests/id:000230,src:000000,op:flip2,pos:316,+cov
diff --git a/src/mint/afl-tests/id:000230,src:000000,op:flip2,pos:320,+cov b/src/exchange/afl-tests/id:000230,src:000000,op:flip2,pos:320,+cov
index f2e7ab291..f2e7ab291 100644
--- a/src/mint/afl-tests/id:000230,src:000000,op:flip2,pos:320,+cov
+++ b/src/exchange/afl-tests/id:000230,src:000000,op:flip2,pos:320,+cov
diff --git a/src/mint/afl-tests/id:000231,src:000000,op:flip2,pos:317,+cov b/src/exchange/afl-tests/id:000231,src:000000,op:flip2,pos:317,+cov
index 2f69f6e0d..2f69f6e0d 100644
--- a/src/mint/afl-tests/id:000231,src:000000,op:flip2,pos:317,+cov
+++ b/src/exchange/afl-tests/id:000231,src:000000,op:flip2,pos:317,+cov
diff --git a/src/mint/afl-tests/id:000231,src:000000,op:flip2,pos:326,+cov b/src/exchange/afl-tests/id:000231,src:000000,op:flip2,pos:326,+cov
index b3f072ba3..b3f072ba3 100644
--- a/src/mint/afl-tests/id:000231,src:000000,op:flip2,pos:326,+cov
+++ b/src/exchange/afl-tests/id:000231,src:000000,op:flip2,pos:326,+cov
diff --git a/src/mint/afl-tests/id:000232,src:000000,op:flip2,pos:320,+cov b/src/exchange/afl-tests/id:000232,src:000000,op:flip2,pos:320,+cov
index b7f8ac374..b7f8ac374 100644
--- a/src/mint/afl-tests/id:000232,src:000000,op:flip2,pos:320,+cov
+++ b/src/exchange/afl-tests/id:000232,src:000000,op:flip2,pos:320,+cov
diff --git a/src/mint/afl-tests/id:000232,src:000000,op:flip2,pos:327,+cov b/src/exchange/afl-tests/id:000232,src:000000,op:flip2,pos:327,+cov
index 1a3a957ff..1a3a957ff 100644
--- a/src/mint/afl-tests/id:000232,src:000000,op:flip2,pos:327,+cov
+++ b/src/exchange/afl-tests/id:000232,src:000000,op:flip2,pos:327,+cov
diff --git a/src/mint/afl-tests/id:000233,src:000000,op:flip2,pos:321,+cov b/src/exchange/afl-tests/id:000233,src:000000,op:flip2,pos:321,+cov
index 94532445d..94532445d 100644
--- a/src/mint/afl-tests/id:000233,src:000000,op:flip2,pos:321,+cov
+++ b/src/exchange/afl-tests/id:000233,src:000000,op:flip2,pos:321,+cov
diff --git a/src/mint/afl-tests/id:000233,src:000000,op:flip2,pos:331,+cov b/src/exchange/afl-tests/id:000233,src:000000,op:flip2,pos:331,+cov
index 86cf97463..86cf97463 100644
--- a/src/mint/afl-tests/id:000233,src:000000,op:flip2,pos:331,+cov
+++ b/src/exchange/afl-tests/id:000233,src:000000,op:flip2,pos:331,+cov
diff --git a/src/mint/afl-tests/id:000234,src:000000,op:flip2,pos:327,+cov b/src/exchange/afl-tests/id:000234,src:000000,op:flip2,pos:327,+cov
index f065598bd..f065598bd 100644
--- a/src/mint/afl-tests/id:000234,src:000000,op:flip2,pos:327,+cov
+++ b/src/exchange/afl-tests/id:000234,src:000000,op:flip2,pos:327,+cov
diff --git a/src/mint/afl-tests/id:000234,src:000000,op:flip4,pos:5,+cov b/src/exchange/afl-tests/id:000234,src:000000,op:flip4,pos:5,+cov
index 7d907ad6c..7d907ad6c 100644
--- a/src/mint/afl-tests/id:000234,src:000000,op:flip4,pos:5,+cov
+++ b/src/exchange/afl-tests/id:000234,src:000000,op:flip4,pos:5,+cov
diff --git a/src/mint/afl-tests/id:000235,src:000000,op:flip2,pos:328,+cov b/src/exchange/afl-tests/id:000235,src:000000,op:flip2,pos:328,+cov
index f1a1bbef5..f1a1bbef5 100644
--- a/src/mint/afl-tests/id:000235,src:000000,op:flip2,pos:328,+cov
+++ b/src/exchange/afl-tests/id:000235,src:000000,op:flip2,pos:328,+cov
diff --git a/src/mint/afl-tests/id:000235,src:000000,op:flip4,pos:20,+cov b/src/exchange/afl-tests/id:000235,src:000000,op:flip4,pos:20,+cov
index 0c6ca440a..0c6ca440a 100644
--- a/src/mint/afl-tests/id:000235,src:000000,op:flip4,pos:20,+cov
+++ b/src/exchange/afl-tests/id:000235,src:000000,op:flip4,pos:20,+cov
diff --git a/src/mint/afl-tests/id:000236,src:000000,op:flip2,pos:330,+cov b/src/exchange/afl-tests/id:000236,src:000000,op:flip2,pos:330,+cov
index cb260a2ff..cb260a2ff 100644
--- a/src/mint/afl-tests/id:000236,src:000000,op:flip2,pos:330,+cov
+++ b/src/exchange/afl-tests/id:000236,src:000000,op:flip2,pos:330,+cov
diff --git a/src/mint/afl-tests/id:000236,src:000000,op:flip4,pos:27,+cov b/src/exchange/afl-tests/id:000236,src:000000,op:flip4,pos:27,+cov
index 44406dc9a..44406dc9a 100644
--- a/src/mint/afl-tests/id:000236,src:000000,op:flip4,pos:27,+cov
+++ b/src/exchange/afl-tests/id:000236,src:000000,op:flip4,pos:27,+cov
diff --git a/src/mint/afl-tests/id:000237,src:000000,op:flip2,pos:331,+cov b/src/exchange/afl-tests/id:000237,src:000000,op:flip2,pos:331,+cov
index 78ee62ec0..78ee62ec0 100644
--- a/src/mint/afl-tests/id:000237,src:000000,op:flip2,pos:331,+cov
+++ b/src/exchange/afl-tests/id:000237,src:000000,op:flip2,pos:331,+cov
diff --git a/src/mint/afl-tests/id:000237,src:000000,op:flip4,pos:30 b/src/exchange/afl-tests/id:000237,src:000000,op:flip4,pos:30
index 2c7116baf..2c7116baf 100644
--- a/src/mint/afl-tests/id:000237,src:000000,op:flip4,pos:30
+++ b/src/exchange/afl-tests/id:000237,src:000000,op:flip4,pos:30
diff --git a/src/mint/afl-tests/id:000238,src:000000,op:flip4,pos:32 b/src/exchange/afl-tests/id:000238,src:000000,op:flip4,pos:32
index 8f85c2958..8f85c2958 100644
--- a/src/mint/afl-tests/id:000238,src:000000,op:flip4,pos:32
+++ b/src/exchange/afl-tests/id:000238,src:000000,op:flip4,pos:32
diff --git a/src/mint/afl-tests/id:000238,src:000000,op:flip4,pos:5,+cov b/src/exchange/afl-tests/id:000238,src:000000,op:flip4,pos:5,+cov
index 7d907ad6c..7d907ad6c 100644
--- a/src/mint/afl-tests/id:000238,src:000000,op:flip4,pos:5,+cov
+++ b/src/exchange/afl-tests/id:000238,src:000000,op:flip4,pos:5,+cov
diff --git a/src/mint/afl-tests/id:000239,src:000000,op:flip4,pos:25,+cov b/src/exchange/afl-tests/id:000239,src:000000,op:flip4,pos:25,+cov
index 86210d53c..86210d53c 100644
--- a/src/mint/afl-tests/id:000239,src:000000,op:flip4,pos:25,+cov
+++ b/src/exchange/afl-tests/id:000239,src:000000,op:flip4,pos:25,+cov
diff --git a/src/mint/afl-tests/id:000239,src:000000,op:flip4,pos:34,+cov b/src/exchange/afl-tests/id:000239,src:000000,op:flip4,pos:34,+cov
index e2049b06a..e2049b06a 100644
--- a/src/mint/afl-tests/id:000239,src:000000,op:flip4,pos:34,+cov
+++ b/src/exchange/afl-tests/id:000239,src:000000,op:flip4,pos:34,+cov
diff --git a/src/mint/afl-tests/id:000240,src:000000,op:flip4,pos:29,+cov b/src/exchange/afl-tests/id:000240,src:000000,op:flip4,pos:29,+cov
index 58c1859ed..58c1859ed 100644
--- a/src/mint/afl-tests/id:000240,src:000000,op:flip4,pos:29,+cov
+++ b/src/exchange/afl-tests/id:000240,src:000000,op:flip4,pos:29,+cov
diff --git a/src/mint/afl-tests/id:000240,src:000000,op:flip4,pos:35 b/src/exchange/afl-tests/id:000240,src:000000,op:flip4,pos:35
index 4dde38854..4dde38854 100644
--- a/src/mint/afl-tests/id:000240,src:000000,op:flip4,pos:35
+++ b/src/exchange/afl-tests/id:000240,src:000000,op:flip4,pos:35
diff --git a/src/mint/afl-tests/id:000241,src:000000,op:flip4,pos:30 b/src/exchange/afl-tests/id:000241,src:000000,op:flip4,pos:30
index 2c7116baf..2c7116baf 100644
--- a/src/mint/afl-tests/id:000241,src:000000,op:flip4,pos:30
+++ b/src/exchange/afl-tests/id:000241,src:000000,op:flip4,pos:30
diff --git a/src/mint/afl-tests/id:000241,src:000000,op:flip4,pos:36 b/src/exchange/afl-tests/id:000241,src:000000,op:flip4,pos:36
index c9b483417..c9b483417 100644
--- a/src/mint/afl-tests/id:000241,src:000000,op:flip4,pos:36
+++ b/src/exchange/afl-tests/id:000241,src:000000,op:flip4,pos:36
diff --git a/src/mint/afl-tests/id:000242,src:000000,op:flip4,pos:32 b/src/exchange/afl-tests/id:000242,src:000000,op:flip4,pos:32
index 8f85c2958..8f85c2958 100644
--- a/src/mint/afl-tests/id:000242,src:000000,op:flip4,pos:32
+++ b/src/exchange/afl-tests/id:000242,src:000000,op:flip4,pos:32
diff --git a/src/mint/afl-tests/id:000242,src:000000,op:flip4,pos:39,+cov b/src/exchange/afl-tests/id:000242,src:000000,op:flip4,pos:39,+cov
index d00310226..d00310226 100644
--- a/src/mint/afl-tests/id:000242,src:000000,op:flip4,pos:39,+cov
+++ b/src/exchange/afl-tests/id:000242,src:000000,op:flip4,pos:39,+cov
diff --git a/src/mint/afl-tests/id:000243,src:000000,op:flip4,pos:37,+cov b/src/exchange/afl-tests/id:000243,src:000000,op:flip4,pos:37,+cov
index 962ffca03..962ffca03 100644
--- a/src/mint/afl-tests/id:000243,src:000000,op:flip4,pos:37,+cov
+++ b/src/exchange/afl-tests/id:000243,src:000000,op:flip4,pos:37,+cov
diff --git a/src/mint/afl-tests/id:000243,src:000000,op:flip4,pos:44,+cov b/src/exchange/afl-tests/id:000243,src:000000,op:flip4,pos:44,+cov
index a22a184f5..a22a184f5 100644
--- a/src/mint/afl-tests/id:000243,src:000000,op:flip4,pos:44,+cov
+++ b/src/exchange/afl-tests/id:000243,src:000000,op:flip4,pos:44,+cov
diff --git a/src/mint/afl-tests/id:000244,src:000000,op:flip4,pos:39,+cov b/src/exchange/afl-tests/id:000244,src:000000,op:flip4,pos:39,+cov
index bd0135a70..bd0135a70 100644
--- a/src/mint/afl-tests/id:000244,src:000000,op:flip4,pos:39,+cov
+++ b/src/exchange/afl-tests/id:000244,src:000000,op:flip4,pos:39,+cov
diff --git a/src/mint/afl-tests/id:000244,src:000000,op:flip4,pos:48,+cov b/src/exchange/afl-tests/id:000244,src:000000,op:flip4,pos:48,+cov
index adce19002..adce19002 100644
--- a/src/mint/afl-tests/id:000244,src:000000,op:flip4,pos:48,+cov
+++ b/src/exchange/afl-tests/id:000244,src:000000,op:flip4,pos:48,+cov
diff --git a/src/mint/afl-tests/id:000245,src:000000,op:flip4,pos:45,+cov b/src/exchange/afl-tests/id:000245,src:000000,op:flip4,pos:45,+cov
index 10ccaf900..10ccaf900 100644
--- a/src/mint/afl-tests/id:000245,src:000000,op:flip4,pos:45,+cov
+++ b/src/exchange/afl-tests/id:000245,src:000000,op:flip4,pos:45,+cov
diff --git a/src/mint/afl-tests/id:000245,src:000000,op:flip4,pos:56,+cov b/src/exchange/afl-tests/id:000245,src:000000,op:flip4,pos:56,+cov
index 1c11de4c7..1c11de4c7 100644
--- a/src/mint/afl-tests/id:000245,src:000000,op:flip4,pos:56,+cov
+++ b/src/exchange/afl-tests/id:000245,src:000000,op:flip4,pos:56,+cov
diff --git a/src/mint/afl-tests/id:000246,src:000000,op:flip4,pos:47,+cov b/src/exchange/afl-tests/id:000246,src:000000,op:flip4,pos:47,+cov
index c2f41f0fa..c2f41f0fa 100644
--- a/src/mint/afl-tests/id:000246,src:000000,op:flip4,pos:47,+cov
+++ b/src/exchange/afl-tests/id:000246,src:000000,op:flip4,pos:47,+cov
diff --git a/src/mint/afl-tests/id:000246,src:000000,op:flip4,pos:59,+cov b/src/exchange/afl-tests/id:000246,src:000000,op:flip4,pos:59,+cov
index e4eb0cd34..e4eb0cd34 100644
--- a/src/mint/afl-tests/id:000246,src:000000,op:flip4,pos:59,+cov
+++ b/src/exchange/afl-tests/id:000246,src:000000,op:flip4,pos:59,+cov
diff --git a/src/mint/afl-tests/id:000247,src:000000,op:flip4,pos:50,+cov b/src/exchange/afl-tests/id:000247,src:000000,op:flip4,pos:50,+cov
index a0e2f3beb..a0e2f3beb 100644
--- a/src/mint/afl-tests/id:000247,src:000000,op:flip4,pos:50,+cov
+++ b/src/exchange/afl-tests/id:000247,src:000000,op:flip4,pos:50,+cov
diff --git a/src/mint/afl-tests/id:000247,src:000000,op:flip4,pos:65,+cov b/src/exchange/afl-tests/id:000247,src:000000,op:flip4,pos:65,+cov
index ed8b19072..ed8b19072 100644
--- a/src/mint/afl-tests/id:000247,src:000000,op:flip4,pos:65,+cov
+++ b/src/exchange/afl-tests/id:000247,src:000000,op:flip4,pos:65,+cov
diff --git a/src/mint/afl-tests/id:000248,src:000000,op:flip4,pos:60,+cov b/src/exchange/afl-tests/id:000248,src:000000,op:flip4,pos:60,+cov
index 584c2a9ae..584c2a9ae 100644
--- a/src/mint/afl-tests/id:000248,src:000000,op:flip4,pos:60,+cov
+++ b/src/exchange/afl-tests/id:000248,src:000000,op:flip4,pos:60,+cov
diff --git a/src/mint/afl-tests/id:000248,src:000000,op:flip4,pos:68,+cov b/src/exchange/afl-tests/id:000248,src:000000,op:flip4,pos:68,+cov
index cf3d9d4a4..cf3d9d4a4 100644
--- a/src/mint/afl-tests/id:000248,src:000000,op:flip4,pos:68,+cov
+++ b/src/exchange/afl-tests/id:000248,src:000000,op:flip4,pos:68,+cov
diff --git a/src/mint/afl-tests/id:000249,src:000000,op:flip4,pos:68,+cov b/src/exchange/afl-tests/id:000249,src:000000,op:flip4,pos:68,+cov
index 677f6128b..677f6128b 100644
--- a/src/mint/afl-tests/id:000249,src:000000,op:flip4,pos:68,+cov
+++ b/src/exchange/afl-tests/id:000249,src:000000,op:flip4,pos:68,+cov
diff --git a/src/mint/afl-tests/id:000250,src:000000,op:flip4,pos:68,+cov b/src/exchange/afl-tests/id:000250,src:000000,op:flip4,pos:68,+cov
index a5c06c65b..a5c06c65b 100644
--- a/src/mint/afl-tests/id:000250,src:000000,op:flip4,pos:68,+cov
+++ b/src/exchange/afl-tests/id:000250,src:000000,op:flip4,pos:68,+cov
diff --git a/src/mint/afl-tests/id:000250,src:000000,op:flip4,pos:73,+cov b/src/exchange/afl-tests/id:000250,src:000000,op:flip4,pos:73,+cov
index 92725c8c5..92725c8c5 100644
--- a/src/mint/afl-tests/id:000250,src:000000,op:flip4,pos:73,+cov
+++ b/src/exchange/afl-tests/id:000250,src:000000,op:flip4,pos:73,+cov
diff --git a/src/mint/afl-tests/id:000251,src:000000,op:flip4,pos:74,+cov b/src/exchange/afl-tests/id:000251,src:000000,op:flip4,pos:74,+cov
index 7b5839f18..7b5839f18 100644
--- a/src/mint/afl-tests/id:000251,src:000000,op:flip4,pos:74,+cov
+++ b/src/exchange/afl-tests/id:000251,src:000000,op:flip4,pos:74,+cov
diff --git a/src/mint/afl-tests/id:000251,src:000000,op:flip4,pos:81,+cov b/src/exchange/afl-tests/id:000251,src:000000,op:flip4,pos:81,+cov
index 58601be35..58601be35 100644
--- a/src/mint/afl-tests/id:000251,src:000000,op:flip4,pos:81,+cov
+++ b/src/exchange/afl-tests/id:000251,src:000000,op:flip4,pos:81,+cov
diff --git a/src/mint/afl-tests/id:000252,src:000000,op:flip4,pos:75,+cov b/src/exchange/afl-tests/id:000252,src:000000,op:flip4,pos:75,+cov
index 4f38b9a57..4f38b9a57 100644
--- a/src/mint/afl-tests/id:000252,src:000000,op:flip4,pos:75,+cov
+++ b/src/exchange/afl-tests/id:000252,src:000000,op:flip4,pos:75,+cov
diff --git a/src/mint/afl-tests/id:000252,src:000000,op:flip4,pos:82,+cov b/src/exchange/afl-tests/id:000252,src:000000,op:flip4,pos:82,+cov
index 8d7afa996..8d7afa996 100644
--- a/src/mint/afl-tests/id:000252,src:000000,op:flip4,pos:82,+cov
+++ b/src/exchange/afl-tests/id:000252,src:000000,op:flip4,pos:82,+cov
diff --git a/src/mint/afl-tests/id:000253,src:000000,op:flip4,pos:75,+cov b/src/exchange/afl-tests/id:000253,src:000000,op:flip4,pos:75,+cov
index f3564e76b..f3564e76b 100644
--- a/src/mint/afl-tests/id:000253,src:000000,op:flip4,pos:75,+cov
+++ b/src/exchange/afl-tests/id:000253,src:000000,op:flip4,pos:75,+cov
diff --git a/src/mint/afl-tests/id:000253,src:000000,op:flip4,pos:85,+cov b/src/exchange/afl-tests/id:000253,src:000000,op:flip4,pos:85,+cov
index 31b6418f5..31b6418f5 100644
--- a/src/mint/afl-tests/id:000253,src:000000,op:flip4,pos:85,+cov
+++ b/src/exchange/afl-tests/id:000253,src:000000,op:flip4,pos:85,+cov
diff --git a/src/mint/afl-tests/id:000254,src:000000,op:flip4,pos:76,+cov b/src/exchange/afl-tests/id:000254,src:000000,op:flip4,pos:76,+cov
index 5707cd53a..5707cd53a 100644
--- a/src/mint/afl-tests/id:000254,src:000000,op:flip4,pos:76,+cov
+++ b/src/exchange/afl-tests/id:000254,src:000000,op:flip4,pos:76,+cov
diff --git a/src/mint/afl-tests/id:000254,src:000000,op:flip4,pos:88,+cov b/src/exchange/afl-tests/id:000254,src:000000,op:flip4,pos:88,+cov
index 6d0eef981..6d0eef981 100644
--- a/src/mint/afl-tests/id:000254,src:000000,op:flip4,pos:88,+cov
+++ b/src/exchange/afl-tests/id:000254,src:000000,op:flip4,pos:88,+cov
diff --git a/src/mint/afl-tests/id:000255,src:000000,op:flip4,pos:81,+cov b/src/exchange/afl-tests/id:000255,src:000000,op:flip4,pos:81,+cov
index b9308a5b0..b9308a5b0 100644
--- a/src/mint/afl-tests/id:000255,src:000000,op:flip4,pos:81,+cov
+++ b/src/exchange/afl-tests/id:000255,src:000000,op:flip4,pos:81,+cov
diff --git a/src/mint/afl-tests/id:000255,src:000000,op:flip4,pos:91,+cov b/src/exchange/afl-tests/id:000255,src:000000,op:flip4,pos:91,+cov
index d9ae11ace..d9ae11ace 100644
--- a/src/mint/afl-tests/id:000255,src:000000,op:flip4,pos:91,+cov
+++ b/src/exchange/afl-tests/id:000255,src:000000,op:flip4,pos:91,+cov
diff --git a/src/mint/afl-tests/id:000256,src:000000,op:flip4,pos:83,+cov b/src/exchange/afl-tests/id:000256,src:000000,op:flip4,pos:83,+cov
index 805fa7976..805fa7976 100644
--- a/src/mint/afl-tests/id:000256,src:000000,op:flip4,pos:83,+cov
+++ b/src/exchange/afl-tests/id:000256,src:000000,op:flip4,pos:83,+cov
diff --git a/src/mint/afl-tests/id:000256,src:000000,op:flip4,pos:94,+cov b/src/exchange/afl-tests/id:000256,src:000000,op:flip4,pos:94,+cov
index e8a54a9b5..e8a54a9b5 100644
--- a/src/mint/afl-tests/id:000256,src:000000,op:flip4,pos:94,+cov
+++ b/src/exchange/afl-tests/id:000256,src:000000,op:flip4,pos:94,+cov
diff --git a/src/mint/afl-tests/id:000257,src:000000,op:flip4,pos:86,+cov b/src/exchange/afl-tests/id:000257,src:000000,op:flip4,pos:86,+cov
index b710069f5..b710069f5 100644
--- a/src/mint/afl-tests/id:000257,src:000000,op:flip4,pos:86,+cov
+++ b/src/exchange/afl-tests/id:000257,src:000000,op:flip4,pos:86,+cov
diff --git a/src/mint/afl-tests/id:000257,src:000000,op:flip4,pos:95,+cov b/src/exchange/afl-tests/id:000257,src:000000,op:flip4,pos:95,+cov
index 2f52b89a2..2f52b89a2 100644
--- a/src/mint/afl-tests/id:000257,src:000000,op:flip4,pos:95,+cov
+++ b/src/exchange/afl-tests/id:000257,src:000000,op:flip4,pos:95,+cov
diff --git a/src/mint/afl-tests/id:000258,src:000000,op:flip4,pos:88,+cov b/src/exchange/afl-tests/id:000258,src:000000,op:flip4,pos:88,+cov
index bc30ba7e5..bc30ba7e5 100644
--- a/src/mint/afl-tests/id:000258,src:000000,op:flip4,pos:88,+cov
+++ b/src/exchange/afl-tests/id:000258,src:000000,op:flip4,pos:88,+cov
diff --git a/src/mint/afl-tests/id:000258,src:000000,op:flip4,pos:95,+cov b/src/exchange/afl-tests/id:000258,src:000000,op:flip4,pos:95,+cov
index 89f3f1fa8..89f3f1fa8 100644
--- a/src/mint/afl-tests/id:000258,src:000000,op:flip4,pos:95,+cov
+++ b/src/exchange/afl-tests/id:000258,src:000000,op:flip4,pos:95,+cov
diff --git a/src/mint/afl-tests/id:000259,src:000000,op:flip4,pos:114 b/src/exchange/afl-tests/id:000259,src:000000,op:flip4,pos:114
index d33f6c0c5..d33f6c0c5 100644
--- a/src/mint/afl-tests/id:000259,src:000000,op:flip4,pos:114
+++ b/src/exchange/afl-tests/id:000259,src:000000,op:flip4,pos:114
diff --git a/src/mint/afl-tests/id:000259,src:000000,op:flip4,pos:91,+cov b/src/exchange/afl-tests/id:000259,src:000000,op:flip4,pos:91,+cov
index ba5159f5e..ba5159f5e 100644
--- a/src/mint/afl-tests/id:000259,src:000000,op:flip4,pos:91,+cov
+++ b/src/exchange/afl-tests/id:000259,src:000000,op:flip4,pos:91,+cov
diff --git a/src/mint/afl-tests/id:000260,src:000000,op:flip4,pos:112,+cov b/src/exchange/afl-tests/id:000260,src:000000,op:flip4,pos:112,+cov
index a877da04e..a877da04e 100644
--- a/src/mint/afl-tests/id:000260,src:000000,op:flip4,pos:112,+cov
+++ b/src/exchange/afl-tests/id:000260,src:000000,op:flip4,pos:112,+cov
diff --git a/src/mint/afl-tests/id:000260,src:000000,op:flip4,pos:137,+cov b/src/exchange/afl-tests/id:000260,src:000000,op:flip4,pos:137,+cov
index ca9b8e8f8..ca9b8e8f8 100644
--- a/src/mint/afl-tests/id:000260,src:000000,op:flip4,pos:137,+cov
+++ b/src/exchange/afl-tests/id:000260,src:000000,op:flip4,pos:137,+cov
diff --git a/src/mint/afl-tests/id:000261,src:000000,op:flip4,pos:139,+cov b/src/exchange/afl-tests/id:000261,src:000000,op:flip4,pos:139,+cov
index 73f929277..73f929277 100644
--- a/src/mint/afl-tests/id:000261,src:000000,op:flip4,pos:139,+cov
+++ b/src/exchange/afl-tests/id:000261,src:000000,op:flip4,pos:139,+cov
diff --git a/src/mint/afl-tests/id:000261,src:000000,op:flip4,pos:147,+cov b/src/exchange/afl-tests/id:000261,src:000000,op:flip4,pos:147,+cov
index 88fb9b186..88fb9b186 100644
--- a/src/mint/afl-tests/id:000261,src:000000,op:flip4,pos:147,+cov
+++ b/src/exchange/afl-tests/id:000261,src:000000,op:flip4,pos:147,+cov
diff --git a/src/mint/afl-tests/id:000262,src:000000,op:flip4,pos:142,+cov b/src/exchange/afl-tests/id:000262,src:000000,op:flip4,pos:142,+cov
index d186af9f9..d186af9f9 100644
--- a/src/mint/afl-tests/id:000262,src:000000,op:flip4,pos:142,+cov
+++ b/src/exchange/afl-tests/id:000262,src:000000,op:flip4,pos:142,+cov
diff --git a/src/mint/afl-tests/id:000262,src:000000,op:flip4,pos:164,+cov b/src/exchange/afl-tests/id:000262,src:000000,op:flip4,pos:164,+cov
index 41838fab5..41838fab5 100644
--- a/src/mint/afl-tests/id:000262,src:000000,op:flip4,pos:164,+cov
+++ b/src/exchange/afl-tests/id:000262,src:000000,op:flip4,pos:164,+cov
diff --git a/src/mint/afl-tests/id:000263,src:000000,op:flip4,pos:147,+cov b/src/exchange/afl-tests/id:000263,src:000000,op:flip4,pos:147,+cov
index 64c7ecc5a..64c7ecc5a 100644
--- a/src/mint/afl-tests/id:000263,src:000000,op:flip4,pos:147,+cov
+++ b/src/exchange/afl-tests/id:000263,src:000000,op:flip4,pos:147,+cov
diff --git a/src/mint/afl-tests/id:000263,src:000000,op:flip4,pos:169,+cov b/src/exchange/afl-tests/id:000263,src:000000,op:flip4,pos:169,+cov
index 27ec78964..27ec78964 100644
--- a/src/mint/afl-tests/id:000263,src:000000,op:flip4,pos:169,+cov
+++ b/src/exchange/afl-tests/id:000263,src:000000,op:flip4,pos:169,+cov
diff --git a/src/mint/afl-tests/id:000264,src:000000,op:flip4,pos:157,+cov b/src/exchange/afl-tests/id:000264,src:000000,op:flip4,pos:157,+cov
index f86e70fe3..f86e70fe3 100644
--- a/src/mint/afl-tests/id:000264,src:000000,op:flip4,pos:157,+cov
+++ b/src/exchange/afl-tests/id:000264,src:000000,op:flip4,pos:157,+cov
diff --git a/src/mint/afl-tests/id:000264,src:000000,op:flip4,pos:172,+cov b/src/exchange/afl-tests/id:000264,src:000000,op:flip4,pos:172,+cov
index e0685daa8..e0685daa8 100644
--- a/src/mint/afl-tests/id:000264,src:000000,op:flip4,pos:172,+cov
+++ b/src/exchange/afl-tests/id:000264,src:000000,op:flip4,pos:172,+cov
diff --git a/src/mint/afl-tests/id:000265,src:000000,op:flip4,pos:157,+cov b/src/exchange/afl-tests/id:000265,src:000000,op:flip4,pos:157,+cov
index 131458df0..131458df0 100644
--- a/src/mint/afl-tests/id:000265,src:000000,op:flip4,pos:157,+cov
+++ b/src/exchange/afl-tests/id:000265,src:000000,op:flip4,pos:157,+cov
diff --git a/src/mint/afl-tests/id:000265,src:000000,op:flip4,pos:175,+cov b/src/exchange/afl-tests/id:000265,src:000000,op:flip4,pos:175,+cov
index 27910870d..27910870d 100644
--- a/src/mint/afl-tests/id:000265,src:000000,op:flip4,pos:175,+cov
+++ b/src/exchange/afl-tests/id:000265,src:000000,op:flip4,pos:175,+cov
diff --git a/src/mint/afl-tests/id:000266,src:000000,op:flip4,pos:176,+cov b/src/exchange/afl-tests/id:000266,src:000000,op:flip4,pos:176,+cov
index 82ec22dc6..82ec22dc6 100644
--- a/src/mint/afl-tests/id:000266,src:000000,op:flip4,pos:176,+cov
+++ b/src/exchange/afl-tests/id:000266,src:000000,op:flip4,pos:176,+cov
diff --git a/src/mint/afl-tests/id:000266,src:000000,op:flip4,pos:177,+cov b/src/exchange/afl-tests/id:000266,src:000000,op:flip4,pos:177,+cov
index 24b643fe5..24b643fe5 100644
--- a/src/mint/afl-tests/id:000266,src:000000,op:flip4,pos:177,+cov
+++ b/src/exchange/afl-tests/id:000266,src:000000,op:flip4,pos:177,+cov
diff --git a/src/mint/afl-tests/id:000267,src:000000,op:flip4,pos:179,+cov b/src/exchange/afl-tests/id:000267,src:000000,op:flip4,pos:179,+cov
index 360154992..360154992 100644
--- a/src/mint/afl-tests/id:000267,src:000000,op:flip4,pos:179,+cov
+++ b/src/exchange/afl-tests/id:000267,src:000000,op:flip4,pos:179,+cov
diff --git a/src/mint/afl-tests/id:000267,src:000000,op:flip4,pos:225,+cov b/src/exchange/afl-tests/id:000267,src:000000,op:flip4,pos:225,+cov
index f7151ae26..f7151ae26 100644
--- a/src/mint/afl-tests/id:000267,src:000000,op:flip4,pos:225,+cov
+++ b/src/exchange/afl-tests/id:000267,src:000000,op:flip4,pos:225,+cov
diff --git a/src/mint/afl-tests/id:000268,src:000000,op:flip4,pos:183,+cov b/src/exchange/afl-tests/id:000268,src:000000,op:flip4,pos:183,+cov
index 6d1bc2588..6d1bc2588 100644
--- a/src/mint/afl-tests/id:000268,src:000000,op:flip4,pos:183,+cov
+++ b/src/exchange/afl-tests/id:000268,src:000000,op:flip4,pos:183,+cov
diff --git a/src/mint/afl-tests/id:000268,src:000000,op:flip4,pos:258,+cov b/src/exchange/afl-tests/id:000268,src:000000,op:flip4,pos:258,+cov
index 87d7b817a..87d7b817a 100644
--- a/src/mint/afl-tests/id:000268,src:000000,op:flip4,pos:258,+cov
+++ b/src/exchange/afl-tests/id:000268,src:000000,op:flip4,pos:258,+cov
diff --git a/src/mint/afl-tests/id:000269,src:000000,op:flip4,pos:262,+cov b/src/exchange/afl-tests/id:000269,src:000000,op:flip4,pos:262,+cov
index 5cb2cb0a6..5cb2cb0a6 100644
--- a/src/mint/afl-tests/id:000269,src:000000,op:flip4,pos:262,+cov
+++ b/src/exchange/afl-tests/id:000269,src:000000,op:flip4,pos:262,+cov
diff --git a/src/mint/afl-tests/id:000269,src:000000,op:flip4,pos:270,+cov b/src/exchange/afl-tests/id:000269,src:000000,op:flip4,pos:270,+cov
index a08c275a9..a08c275a9 100644
--- a/src/mint/afl-tests/id:000269,src:000000,op:flip4,pos:270,+cov
+++ b/src/exchange/afl-tests/id:000269,src:000000,op:flip4,pos:270,+cov
diff --git a/src/mint/afl-tests/id:000270,src:000000,op:flip4,pos:276,+cov b/src/exchange/afl-tests/id:000270,src:000000,op:flip4,pos:276,+cov
index b0fb2cef9..b0fb2cef9 100644
--- a/src/mint/afl-tests/id:000270,src:000000,op:flip4,pos:276,+cov
+++ b/src/exchange/afl-tests/id:000270,src:000000,op:flip4,pos:276,+cov
diff --git a/src/mint/afl-tests/id:000270,src:000000,op:flip4,pos:280,+cov b/src/exchange/afl-tests/id:000270,src:000000,op:flip4,pos:280,+cov
index 9273332cd..9273332cd 100644
--- a/src/mint/afl-tests/id:000270,src:000000,op:flip4,pos:280,+cov
+++ b/src/exchange/afl-tests/id:000270,src:000000,op:flip4,pos:280,+cov
diff --git a/src/mint/afl-tests/id:000271,src:000000,op:flip4,pos:284,+cov b/src/exchange/afl-tests/id:000271,src:000000,op:flip4,pos:284,+cov
index 66d79eb73..66d79eb73 100644
--- a/src/mint/afl-tests/id:000271,src:000000,op:flip4,pos:284,+cov
+++ b/src/exchange/afl-tests/id:000271,src:000000,op:flip4,pos:284,+cov
diff --git a/src/mint/afl-tests/id:000271,src:000000,op:flip4,pos:307,+cov b/src/exchange/afl-tests/id:000271,src:000000,op:flip4,pos:307,+cov
index c275db95d..c275db95d 100644
--- a/src/mint/afl-tests/id:000271,src:000000,op:flip4,pos:307,+cov
+++ b/src/exchange/afl-tests/id:000271,src:000000,op:flip4,pos:307,+cov
diff --git a/src/mint/afl-tests/id:000272,src:000000,op:flip4,pos:314,+cov b/src/exchange/afl-tests/id:000272,src:000000,op:flip4,pos:314,+cov
index 473c0d79e..473c0d79e 100644
--- a/src/mint/afl-tests/id:000272,src:000000,op:flip4,pos:314,+cov
+++ b/src/exchange/afl-tests/id:000272,src:000000,op:flip4,pos:314,+cov
diff --git a/src/mint/afl-tests/id:000272,src:000000,op:flip4,pos:317,+cov b/src/exchange/afl-tests/id:000272,src:000000,op:flip4,pos:317,+cov
index cd1ff487c..cd1ff487c 100644
--- a/src/mint/afl-tests/id:000272,src:000000,op:flip4,pos:317,+cov
+++ b/src/exchange/afl-tests/id:000272,src:000000,op:flip4,pos:317,+cov
diff --git a/src/mint/afl-tests/id:000273,src:000000,op:flip4,pos:318,+cov b/src/exchange/afl-tests/id:000273,src:000000,op:flip4,pos:318,+cov
index 4d1ec655a..4d1ec655a 100644
--- a/src/mint/afl-tests/id:000273,src:000000,op:flip4,pos:318,+cov
+++ b/src/exchange/afl-tests/id:000273,src:000000,op:flip4,pos:318,+cov
diff --git a/src/mint/afl-tests/id:000273,src:000000,op:flip4,pos:328,+cov b/src/exchange/afl-tests/id:000273,src:000000,op:flip4,pos:328,+cov
index 18ab5851c..18ab5851c 100644
--- a/src/mint/afl-tests/id:000273,src:000000,op:flip4,pos:328,+cov
+++ b/src/exchange/afl-tests/id:000273,src:000000,op:flip4,pos:328,+cov
diff --git a/src/mint/afl-tests/id:000274,src:000000,op:flip4,pos:330,+cov b/src/exchange/afl-tests/id:000274,src:000000,op:flip4,pos:330,+cov
index 3471f5668..3471f5668 100644
--- a/src/mint/afl-tests/id:000274,src:000000,op:flip4,pos:330,+cov
+++ b/src/exchange/afl-tests/id:000274,src:000000,op:flip4,pos:330,+cov
diff --git a/src/mint/afl-tests/id:000275,src:000000,op:flip4,pos:331,+cov b/src/exchange/afl-tests/id:000275,src:000000,op:flip4,pos:331,+cov
index a633b436d..a633b436d 100644
--- a/src/mint/afl-tests/id:000275,src:000000,op:flip4,pos:331,+cov
+++ b/src/exchange/afl-tests/id:000275,src:000000,op:flip4,pos:331,+cov
diff --git a/src/mint/afl-tests/id:000275,src:000000,op:flip8,pos:32,+cov b/src/exchange/afl-tests/id:000275,src:000000,op:flip8,pos:32,+cov
index 9380f3bad..9380f3bad 100644
--- a/src/mint/afl-tests/id:000275,src:000000,op:flip8,pos:32,+cov
+++ b/src/exchange/afl-tests/id:000275,src:000000,op:flip8,pos:32,+cov
diff --git a/src/mint/afl-tests/id:000276,src:000000,op:flip8,pos:43,+cov b/src/exchange/afl-tests/id:000276,src:000000,op:flip8,pos:43,+cov
index 807c60f27..807c60f27 100644
--- a/src/mint/afl-tests/id:000276,src:000000,op:flip8,pos:43,+cov
+++ b/src/exchange/afl-tests/id:000276,src:000000,op:flip8,pos:43,+cov
diff --git a/src/mint/afl-tests/id:000276,src:000000,op:flip8,pos:47,+cov b/src/exchange/afl-tests/id:000276,src:000000,op:flip8,pos:47,+cov
index d4ae83d7d..d4ae83d7d 100644
--- a/src/mint/afl-tests/id:000276,src:000000,op:flip8,pos:47,+cov
+++ b/src/exchange/afl-tests/id:000276,src:000000,op:flip8,pos:47,+cov
diff --git a/src/mint/afl-tests/id:000277,src:000000,op:flip8,pos:190,+cov b/src/exchange/afl-tests/id:000277,src:000000,op:flip8,pos:190,+cov
index e34d6b3a8..e34d6b3a8 100644
--- a/src/mint/afl-tests/id:000277,src:000000,op:flip8,pos:190,+cov
+++ b/src/exchange/afl-tests/id:000277,src:000000,op:flip8,pos:190,+cov
diff --git a/src/mint/afl-tests/id:000277,src:000000,op:flip8,pos:52,+cov b/src/exchange/afl-tests/id:000277,src:000000,op:flip8,pos:52,+cov
index ecff769d5..ecff769d5 100644
--- a/src/mint/afl-tests/id:000277,src:000000,op:flip8,pos:52,+cov
+++ b/src/exchange/afl-tests/id:000277,src:000000,op:flip8,pos:52,+cov
diff --git a/src/mint/afl-tests/id:000278,src:000000,op:flip16,pos:51,+cov b/src/exchange/afl-tests/id:000278,src:000000,op:flip16,pos:51,+cov
index cd088519b..cd088519b 100644
--- a/src/mint/afl-tests/id:000278,src:000000,op:flip16,pos:51,+cov
+++ b/src/exchange/afl-tests/id:000278,src:000000,op:flip16,pos:51,+cov
diff --git a/src/mint/afl-tests/id:000278,src:000000,op:flip8,pos:62,+cov b/src/exchange/afl-tests/id:000278,src:000000,op:flip8,pos:62,+cov
index c357e97c3..c357e97c3 100644
--- a/src/mint/afl-tests/id:000278,src:000000,op:flip8,pos:62,+cov
+++ b/src/exchange/afl-tests/id:000278,src:000000,op:flip8,pos:62,+cov
diff --git a/src/mint/afl-tests/id:000279,src:000000,op:flip16,pos:219,+cov b/src/exchange/afl-tests/id:000279,src:000000,op:flip16,pos:219,+cov
index 4d506ae4d..4d506ae4d 100644
--- a/src/mint/afl-tests/id:000279,src:000000,op:flip16,pos:219,+cov
+++ b/src/exchange/afl-tests/id:000279,src:000000,op:flip16,pos:219,+cov
diff --git a/src/mint/afl-tests/id:000279,src:000000,op:flip8,pos:87,+cov b/src/exchange/afl-tests/id:000279,src:000000,op:flip8,pos:87,+cov
index 2ac89cdd3..2ac89cdd3 100644
--- a/src/mint/afl-tests/id:000279,src:000000,op:flip8,pos:87,+cov
+++ b/src/exchange/afl-tests/id:000279,src:000000,op:flip8,pos:87,+cov
diff --git a/src/mint/afl-tests/id:000280,src:000000,op:flip32,pos:55,+cov b/src/exchange/afl-tests/id:000280,src:000000,op:flip32,pos:55,+cov
index b760bf503..b760bf503 100644
--- a/src/mint/afl-tests/id:000280,src:000000,op:flip32,pos:55,+cov
+++ b/src/exchange/afl-tests/id:000280,src:000000,op:flip32,pos:55,+cov
diff --git a/src/mint/afl-tests/id:000280,src:000000,op:flip8,pos:88,+cov b/src/exchange/afl-tests/id:000280,src:000000,op:flip8,pos:88,+cov
index decf04feb..decf04feb 100644
--- a/src/mint/afl-tests/id:000280,src:000000,op:flip8,pos:88,+cov
+++ b/src/exchange/afl-tests/id:000280,src:000000,op:flip8,pos:88,+cov
diff --git a/src/mint/afl-tests/id:000281,src:000000,op:flip32,pos:68,+cov b/src/exchange/afl-tests/id:000281,src:000000,op:flip32,pos:68,+cov
index 3747666ea..3747666ea 100644
--- a/src/mint/afl-tests/id:000281,src:000000,op:flip32,pos:68,+cov
+++ b/src/exchange/afl-tests/id:000281,src:000000,op:flip32,pos:68,+cov
diff --git a/src/mint/afl-tests/id:000281,src:000000,op:flip8,pos:331,+cov b/src/exchange/afl-tests/id:000281,src:000000,op:flip8,pos:331,+cov
index 55cd8836d..55cd8836d 100644
--- a/src/mint/afl-tests/id:000281,src:000000,op:flip8,pos:331,+cov
+++ b/src/exchange/afl-tests/id:000281,src:000000,op:flip8,pos:331,+cov
diff --git a/src/mint/afl-tests/id:000282,src:000000,op:arith8,pos:4,val:-19 b/src/exchange/afl-tests/id:000282,src:000000,op:arith8,pos:4,val:-19
index 12e0ae2a8..12e0ae2a8 100644
--- a/src/mint/afl-tests/id:000282,src:000000,op:arith8,pos:4,val:-19
+++ b/src/exchange/afl-tests/id:000282,src:000000,op:arith8,pos:4,val:-19
diff --git a/src/mint/afl-tests/id:000282,src:000000,op:flip16,pos:39,+cov b/src/exchange/afl-tests/id:000282,src:000000,op:flip16,pos:39,+cov
index 6d70030f3..6d70030f3 100644
--- a/src/mint/afl-tests/id:000282,src:000000,op:flip16,pos:39,+cov
+++ b/src/exchange/afl-tests/id:000282,src:000000,op:flip16,pos:39,+cov
diff --git a/src/mint/afl-tests/id:000283,src:000000,op:arith8,pos:4,val:-22 b/src/exchange/afl-tests/id:000283,src:000000,op:arith8,pos:4,val:-22
index bbeeb110a..bbeeb110a 100644
--- a/src/mint/afl-tests/id:000283,src:000000,op:arith8,pos:4,val:-22
+++ b/src/exchange/afl-tests/id:000283,src:000000,op:arith8,pos:4,val:-22
diff --git a/src/mint/afl-tests/id:000283,src:000000,op:flip16,pos:85,+cov b/src/exchange/afl-tests/id:000283,src:000000,op:flip16,pos:85,+cov
index b707ff1a3..b707ff1a3 100644
--- a/src/mint/afl-tests/id:000283,src:000000,op:flip16,pos:85,+cov
+++ b/src/exchange/afl-tests/id:000283,src:000000,op:flip16,pos:85,+cov
diff --git a/src/mint/afl-tests/id:000284,src:000000,op:arith8,pos:5,val:-10,+cov b/src/exchange/afl-tests/id:000284,src:000000,op:arith8,pos:5,val:-10,+cov
index 2e1ce6848..2e1ce6848 100644
--- a/src/mint/afl-tests/id:000284,src:000000,op:arith8,pos:5,val:-10,+cov
+++ b/src/exchange/afl-tests/id:000284,src:000000,op:arith8,pos:5,val:-10,+cov
diff --git a/src/mint/afl-tests/id:000284,src:000000,op:flip32,pos:49,+cov b/src/exchange/afl-tests/id:000284,src:000000,op:flip32,pos:49,+cov
index 586994698..586994698 100644
--- a/src/mint/afl-tests/id:000284,src:000000,op:flip32,pos:49,+cov
+++ b/src/exchange/afl-tests/id:000284,src:000000,op:flip32,pos:49,+cov
diff --git a/src/mint/afl-tests/id:000285,src:000000,op:arith8,pos:5,val:-34 b/src/exchange/afl-tests/id:000285,src:000000,op:arith8,pos:5,val:-34
index b4194fc37..b4194fc37 100644
--- a/src/mint/afl-tests/id:000285,src:000000,op:arith8,pos:5,val:-34
+++ b/src/exchange/afl-tests/id:000285,src:000000,op:arith8,pos:5,val:-34
diff --git a/src/mint/afl-tests/id:000285,src:000000,op:flip32,pos:62 b/src/exchange/afl-tests/id:000285,src:000000,op:flip32,pos:62
index c42ccc4d7..c42ccc4d7 100644
--- a/src/mint/afl-tests/id:000285,src:000000,op:flip32,pos:62
+++ b/src/exchange/afl-tests/id:000285,src:000000,op:flip32,pos:62
diff --git a/src/mint/afl-tests/id:000286,src:000000,op:arith8,pos:6,val:-34,+cov b/src/exchange/afl-tests/id:000286,src:000000,op:arith8,pos:6,val:-34,+cov
index 7c6c9e9a4..7c6c9e9a4 100644
--- a/src/mint/afl-tests/id:000286,src:000000,op:arith8,pos:6,val:-34,+cov
+++ b/src/exchange/afl-tests/id:000286,src:000000,op:arith8,pos:6,val:-34,+cov
diff --git a/src/mint/afl-tests/id:000286,src:000000,op:flip32,pos:86,+cov b/src/exchange/afl-tests/id:000286,src:000000,op:flip32,pos:86,+cov
index f6b0961c1..f6b0961c1 100644
--- a/src/mint/afl-tests/id:000286,src:000000,op:flip32,pos:86,+cov
+++ b/src/exchange/afl-tests/id:000286,src:000000,op:flip32,pos:86,+cov
diff --git a/src/mint/afl-tests/id:000287,src:000000,op:arith8,pos:11,val:-34 b/src/exchange/afl-tests/id:000287,src:000000,op:arith8,pos:11,val:-34
index 800f11d77..800f11d77 100644
--- a/src/mint/afl-tests/id:000287,src:000000,op:arith8,pos:11,val:-34
+++ b/src/exchange/afl-tests/id:000287,src:000000,op:arith8,pos:11,val:-34
diff --git a/src/mint/afl-tests/id:000287,src:000000,op:flip32,pos:92,+cov b/src/exchange/afl-tests/id:000287,src:000000,op:flip32,pos:92,+cov
index db12f8d50..db12f8d50 100644
--- a/src/mint/afl-tests/id:000287,src:000000,op:flip32,pos:92,+cov
+++ b/src/exchange/afl-tests/id:000287,src:000000,op:flip32,pos:92,+cov
diff --git a/src/mint/afl-tests/id:000288,src:000000,op:arith8,pos:15,val:-10,+cov b/src/exchange/afl-tests/id:000288,src:000000,op:arith8,pos:15,val:-10,+cov
index eb694617c..eb694617c 100644
--- a/src/mint/afl-tests/id:000288,src:000000,op:arith8,pos:15,val:-10,+cov
+++ b/src/exchange/afl-tests/id:000288,src:000000,op:arith8,pos:15,val:-10,+cov
diff --git a/src/mint/afl-tests/id:000288,src:000000,op:arith8,pos:4,val:-19 b/src/exchange/afl-tests/id:000288,src:000000,op:arith8,pos:4,val:-19
index 12e0ae2a8..12e0ae2a8 100644
--- a/src/mint/afl-tests/id:000288,src:000000,op:arith8,pos:4,val:-19
+++ b/src/exchange/afl-tests/id:000288,src:000000,op:arith8,pos:4,val:-19
diff --git a/src/mint/afl-tests/id:000289,src:000000,op:arith8,pos:22,val:+5,+cov b/src/exchange/afl-tests/id:000289,src:000000,op:arith8,pos:22,val:+5,+cov
index 4b360a211..4b360a211 100644
--- a/src/mint/afl-tests/id:000289,src:000000,op:arith8,pos:22,val:+5,+cov
+++ b/src/exchange/afl-tests/id:000289,src:000000,op:arith8,pos:22,val:+5,+cov
diff --git a/src/mint/afl-tests/id:000289,src:000000,op:arith8,pos:4,val:-22 b/src/exchange/afl-tests/id:000289,src:000000,op:arith8,pos:4,val:-22
index bbeeb110a..bbeeb110a 100644
--- a/src/mint/afl-tests/id:000289,src:000000,op:arith8,pos:4,val:-22
+++ b/src/exchange/afl-tests/id:000289,src:000000,op:arith8,pos:4,val:-22
diff --git a/src/mint/afl-tests/id:000290,src:000000,op:arith8,pos:24,val:+10,+cov b/src/exchange/afl-tests/id:000290,src:000000,op:arith8,pos:24,val:+10,+cov
index 6b727d2dd..6b727d2dd 100644
--- a/src/mint/afl-tests/id:000290,src:000000,op:arith8,pos:24,val:+10,+cov
+++ b/src/exchange/afl-tests/id:000290,src:000000,op:arith8,pos:24,val:+10,+cov
diff --git a/src/mint/afl-tests/id:000290,src:000000,op:arith8,pos:5,val:-10,+cov b/src/exchange/afl-tests/id:000290,src:000000,op:arith8,pos:5,val:-10,+cov
index 2e1ce6848..2e1ce6848 100644
--- a/src/mint/afl-tests/id:000290,src:000000,op:arith8,pos:5,val:-10,+cov
+++ b/src/exchange/afl-tests/id:000290,src:000000,op:arith8,pos:5,val:-10,+cov
diff --git a/src/mint/afl-tests/id:000291,src:000000,op:arith8,pos:25,val:-6,+cov b/src/exchange/afl-tests/id:000291,src:000000,op:arith8,pos:25,val:-6,+cov
index 266c585e9..266c585e9 100644
--- a/src/mint/afl-tests/id:000291,src:000000,op:arith8,pos:25,val:-6,+cov
+++ b/src/exchange/afl-tests/id:000291,src:000000,op:arith8,pos:25,val:-6,+cov
diff --git a/src/mint/afl-tests/id:000291,src:000000,op:arith8,pos:5,val:-34 b/src/exchange/afl-tests/id:000291,src:000000,op:arith8,pos:5,val:-34
index b4194fc37..b4194fc37 100644
--- a/src/mint/afl-tests/id:000291,src:000000,op:arith8,pos:5,val:-34
+++ b/src/exchange/afl-tests/id:000291,src:000000,op:arith8,pos:5,val:-34
diff --git a/src/mint/afl-tests/id:000292,src:000000,op:arith8,pos:25,val:-25,+cov b/src/exchange/afl-tests/id:000292,src:000000,op:arith8,pos:25,val:-25,+cov
index d3cf6bd8c..d3cf6bd8c 100644
--- a/src/mint/afl-tests/id:000292,src:000000,op:arith8,pos:25,val:-25,+cov
+++ b/src/exchange/afl-tests/id:000292,src:000000,op:arith8,pos:25,val:-25,+cov
diff --git a/src/mint/afl-tests/id:000292,src:000000,op:arith8,pos:6,val:-34,+cov b/src/exchange/afl-tests/id:000292,src:000000,op:arith8,pos:6,val:-34,+cov
index 7c6c9e9a4..7c6c9e9a4 100644
--- a/src/mint/afl-tests/id:000292,src:000000,op:arith8,pos:6,val:-34,+cov
+++ b/src/exchange/afl-tests/id:000292,src:000000,op:arith8,pos:6,val:-34,+cov
diff --git a/src/mint/afl-tests/id:000293,src:000000,op:arith8,pos:25,val:-29,+cov b/src/exchange/afl-tests/id:000293,src:000000,op:arith8,pos:25,val:-29,+cov
index 7001abfc8..7001abfc8 100644
--- a/src/mint/afl-tests/id:000293,src:000000,op:arith8,pos:25,val:-29,+cov
+++ b/src/exchange/afl-tests/id:000293,src:000000,op:arith8,pos:25,val:-29,+cov
diff --git a/src/mint/afl-tests/id:000293,src:000000,op:arith8,pos:7,val:-34,+cov b/src/exchange/afl-tests/id:000293,src:000000,op:arith8,pos:7,val:-34,+cov
index f94f08c7e..f94f08c7e 100644
--- a/src/mint/afl-tests/id:000293,src:000000,op:arith8,pos:7,val:-34,+cov
+++ b/src/exchange/afl-tests/id:000293,src:000000,op:arith8,pos:7,val:-34,+cov
diff --git a/src/mint/afl-tests/id:000294,src:000000,op:arith8,pos:11,val:-34 b/src/exchange/afl-tests/id:000294,src:000000,op:arith8,pos:11,val:-34
index 800f11d77..800f11d77 100644
--- a/src/mint/afl-tests/id:000294,src:000000,op:arith8,pos:11,val:-34
+++ b/src/exchange/afl-tests/id:000294,src:000000,op:arith8,pos:11,val:-34
diff --git a/src/mint/afl-tests/id:000294,src:000000,op:arith8,pos:26,val:+12,+cov b/src/exchange/afl-tests/id:000294,src:000000,op:arith8,pos:26,val:+12,+cov
index 898b7b54e..898b7b54e 100644
--- a/src/mint/afl-tests/id:000294,src:000000,op:arith8,pos:26,val:+12,+cov
+++ b/src/exchange/afl-tests/id:000294,src:000000,op:arith8,pos:26,val:+12,+cov
diff --git a/src/mint/afl-tests/id:000295,src:000000,op:arith8,pos:15,val:-10,+cov b/src/exchange/afl-tests/id:000295,src:000000,op:arith8,pos:15,val:-10,+cov
index eb694617c..eb694617c 100644
--- a/src/mint/afl-tests/id:000295,src:000000,op:arith8,pos:15,val:-10,+cov
+++ b/src/exchange/afl-tests/id:000295,src:000000,op:arith8,pos:15,val:-10,+cov
diff --git a/src/mint/afl-tests/id:000295,src:000000,op:arith8,pos:26,val:+17,+cov b/src/exchange/afl-tests/id:000295,src:000000,op:arith8,pos:26,val:+17,+cov
index 3b82a7a45..3b82a7a45 100644
--- a/src/mint/afl-tests/id:000295,src:000000,op:arith8,pos:26,val:+17,+cov
+++ b/src/exchange/afl-tests/id:000295,src:000000,op:arith8,pos:26,val:+17,+cov
diff --git a/src/mint/afl-tests/id:000296,src:000000,op:arith8,pos:25,val:+24,+cov b/src/exchange/afl-tests/id:000296,src:000000,op:arith8,pos:25,val:+24,+cov
index e27e05c18..e27e05c18 100644
--- a/src/mint/afl-tests/id:000296,src:000000,op:arith8,pos:25,val:+24,+cov
+++ b/src/exchange/afl-tests/id:000296,src:000000,op:arith8,pos:25,val:+24,+cov
diff --git a/src/mint/afl-tests/id:000296,src:000000,op:arith8,pos:27,val:-29,+cov b/src/exchange/afl-tests/id:000296,src:000000,op:arith8,pos:27,val:-29,+cov
index 7033fc108..7033fc108 100644
--- a/src/mint/afl-tests/id:000296,src:000000,op:arith8,pos:27,val:-29,+cov
+++ b/src/exchange/afl-tests/id:000296,src:000000,op:arith8,pos:27,val:-29,+cov
diff --git a/src/mint/afl-tests/id:000297,src:000000,op:arith8,pos:27,val:+26,+cov b/src/exchange/afl-tests/id:000297,src:000000,op:arith8,pos:27,val:+26,+cov
index e3e645d56..e3e645d56 100644
--- a/src/mint/afl-tests/id:000297,src:000000,op:arith8,pos:27,val:+26,+cov
+++ b/src/exchange/afl-tests/id:000297,src:000000,op:arith8,pos:27,val:+26,+cov
diff --git a/src/mint/afl-tests/id:000297,src:000000,op:arith8,pos:27,val:+33,+cov b/src/exchange/afl-tests/id:000297,src:000000,op:arith8,pos:27,val:+33,+cov
index 2354f9ec9..2354f9ec9 100644
--- a/src/mint/afl-tests/id:000297,src:000000,op:arith8,pos:27,val:+33,+cov
+++ b/src/exchange/afl-tests/id:000297,src:000000,op:arith8,pos:27,val:+33,+cov
diff --git a/src/mint/afl-tests/id:000298,src:000000,op:arith8,pos:28,val:+13,+cov b/src/exchange/afl-tests/id:000298,src:000000,op:arith8,pos:28,val:+13,+cov
index 042d4e2eb..042d4e2eb 100644
--- a/src/mint/afl-tests/id:000298,src:000000,op:arith8,pos:28,val:+13,+cov
+++ b/src/exchange/afl-tests/id:000298,src:000000,op:arith8,pos:28,val:+13,+cov
diff --git a/src/mint/afl-tests/id:000298,src:000000,op:arith8,pos:28,val:+9,+cov b/src/exchange/afl-tests/id:000298,src:000000,op:arith8,pos:28,val:+9,+cov
index 828e367ad..828e367ad 100644
--- a/src/mint/afl-tests/id:000298,src:000000,op:arith8,pos:28,val:+9,+cov
+++ b/src/exchange/afl-tests/id:000298,src:000000,op:arith8,pos:28,val:+9,+cov
diff --git a/src/mint/afl-tests/id:000299,src:000000,op:arith8,pos:28,val:-15,+cov b/src/exchange/afl-tests/id:000299,src:000000,op:arith8,pos:28,val:-15,+cov
index a8f4f133d..a8f4f133d 100644
--- a/src/mint/afl-tests/id:000299,src:000000,op:arith8,pos:28,val:-15,+cov
+++ b/src/exchange/afl-tests/id:000299,src:000000,op:arith8,pos:28,val:-15,+cov
diff --git a/src/mint/afl-tests/id:000299,src:000000,op:arith8,pos:28,val:-17 b/src/exchange/afl-tests/id:000299,src:000000,op:arith8,pos:28,val:-17
index e10776344..e10776344 100644
--- a/src/mint/afl-tests/id:000299,src:000000,op:arith8,pos:28,val:-17
+++ b/src/exchange/afl-tests/id:000299,src:000000,op:arith8,pos:28,val:-17
diff --git a/src/mint/afl-tests/id:000300,src:000000,op:arith8,pos:28,val:+27,+cov b/src/exchange/afl-tests/id:000300,src:000000,op:arith8,pos:28,val:+27,+cov
index f39331171..f39331171 100644
--- a/src/mint/afl-tests/id:000300,src:000000,op:arith8,pos:28,val:+27,+cov
+++ b/src/exchange/afl-tests/id:000300,src:000000,op:arith8,pos:28,val:+27,+cov
diff --git a/src/mint/afl-tests/id:000300,src:000000,op:arith8,pos:28,val:-33,+cov b/src/exchange/afl-tests/id:000300,src:000000,op:arith8,pos:28,val:-33,+cov
index 9583e2475..9583e2475 100644
--- a/src/mint/afl-tests/id:000300,src:000000,op:arith8,pos:28,val:-33,+cov
+++ b/src/exchange/afl-tests/id:000300,src:000000,op:arith8,pos:28,val:-33,+cov
diff --git a/src/mint/afl-tests/id:000301,src:000000,op:arith8,pos:28,val:-31,+cov b/src/exchange/afl-tests/id:000301,src:000000,op:arith8,pos:28,val:-31,+cov
index 6c9b2146b..6c9b2146b 100644
--- a/src/mint/afl-tests/id:000301,src:000000,op:arith8,pos:28,val:-31,+cov
+++ b/src/exchange/afl-tests/id:000301,src:000000,op:arith8,pos:28,val:-31,+cov
diff --git a/src/mint/afl-tests/id:000301,src:000000,op:arith8,pos:29,val:+14,+cov b/src/exchange/afl-tests/id:000301,src:000000,op:arith8,pos:29,val:+14,+cov
index aacd0de6e..aacd0de6e 100644
--- a/src/mint/afl-tests/id:000301,src:000000,op:arith8,pos:29,val:+14,+cov
+++ b/src/exchange/afl-tests/id:000301,src:000000,op:arith8,pos:29,val:+14,+cov
diff --git a/src/mint/afl-tests/id:000302,src:000000,op:arith8,pos:29,val:-29,+cov b/src/exchange/afl-tests/id:000302,src:000000,op:arith8,pos:29,val:-29,+cov
index 8e2ad654a..8e2ad654a 100644
--- a/src/mint/afl-tests/id:000302,src:000000,op:arith8,pos:29,val:-29,+cov
+++ b/src/exchange/afl-tests/id:000302,src:000000,op:arith8,pos:29,val:-29,+cov
diff --git a/src/mint/afl-tests/id:000302,src:000000,op:arith8,pos:30,val:+3,+cov b/src/exchange/afl-tests/id:000302,src:000000,op:arith8,pos:30,val:+3,+cov
index a88e5b104..a88e5b104 100644
--- a/src/mint/afl-tests/id:000302,src:000000,op:arith8,pos:30,val:+3,+cov
+++ b/src/exchange/afl-tests/id:000302,src:000000,op:arith8,pos:30,val:+3,+cov
diff --git a/src/mint/afl-tests/id:000303,src:000000,op:arith8,pos:30,val:+18,+cov b/src/exchange/afl-tests/id:000303,src:000000,op:arith8,pos:30,val:+18,+cov
index 869a1de15..869a1de15 100644
--- a/src/mint/afl-tests/id:000303,src:000000,op:arith8,pos:30,val:+18,+cov
+++ b/src/exchange/afl-tests/id:000303,src:000000,op:arith8,pos:30,val:+18,+cov
diff --git a/src/mint/afl-tests/id:000303,src:000000,op:arith8,pos:30,val:+31,+cov b/src/exchange/afl-tests/id:000303,src:000000,op:arith8,pos:30,val:+31,+cov
index 8551cf990..8551cf990 100644
--- a/src/mint/afl-tests/id:000303,src:000000,op:arith8,pos:30,val:+31,+cov
+++ b/src/exchange/afl-tests/id:000303,src:000000,op:arith8,pos:30,val:+31,+cov
diff --git a/src/mint/afl-tests/id:000304,src:000000,op:arith8,pos:31,val:+19,+cov b/src/exchange/afl-tests/id:000304,src:000000,op:arith8,pos:31,val:+19,+cov
index 51a9ffc4e..51a9ffc4e 100644
--- a/src/mint/afl-tests/id:000304,src:000000,op:arith8,pos:31,val:+19,+cov
+++ b/src/exchange/afl-tests/id:000304,src:000000,op:arith8,pos:31,val:+19,+cov
diff --git a/src/mint/afl-tests/id:000304,src:000000,op:arith8,pos:31,val:-33,+cov b/src/exchange/afl-tests/id:000304,src:000000,op:arith8,pos:31,val:-33,+cov
index 7b6803aec..7b6803aec 100644
--- a/src/mint/afl-tests/id:000304,src:000000,op:arith8,pos:31,val:-33,+cov
+++ b/src/exchange/afl-tests/id:000304,src:000000,op:arith8,pos:31,val:-33,+cov
diff --git a/src/mint/afl-tests/id:000305,src:000000,op:arith8,pos:31,val:-29,+cov b/src/exchange/afl-tests/id:000305,src:000000,op:arith8,pos:31,val:-29,+cov
index caa9eaa75..caa9eaa75 100644
--- a/src/mint/afl-tests/id:000305,src:000000,op:arith8,pos:31,val:-29,+cov
+++ b/src/exchange/afl-tests/id:000305,src:000000,op:arith8,pos:31,val:-29,+cov
diff --git a/src/mint/afl-tests/id:000305,src:000000,op:arith8,pos:32,val:+19,+cov b/src/exchange/afl-tests/id:000305,src:000000,op:arith8,pos:32,val:+19,+cov
index 0d5448ad2..0d5448ad2 100644
--- a/src/mint/afl-tests/id:000305,src:000000,op:arith8,pos:32,val:+19,+cov
+++ b/src/exchange/afl-tests/id:000305,src:000000,op:arith8,pos:32,val:+19,+cov
diff --git a/src/mint/afl-tests/id:000306,src:000000,op:arith8,pos:31,val:-33,+cov b/src/exchange/afl-tests/id:000306,src:000000,op:arith8,pos:31,val:-33,+cov
index 7b6803aec..7b6803aec 100644
--- a/src/mint/afl-tests/id:000306,src:000000,op:arith8,pos:31,val:-33,+cov
+++ b/src/exchange/afl-tests/id:000306,src:000000,op:arith8,pos:31,val:-33,+cov
diff --git a/src/mint/afl-tests/id:000306,src:000000,op:arith8,pos:33,val:+15,+cov b/src/exchange/afl-tests/id:000306,src:000000,op:arith8,pos:33,val:+15,+cov
index 4be075df1..4be075df1 100644
--- a/src/mint/afl-tests/id:000306,src:000000,op:arith8,pos:33,val:+15,+cov
+++ b/src/exchange/afl-tests/id:000306,src:000000,op:arith8,pos:33,val:+15,+cov
diff --git a/src/mint/afl-tests/id:000307,src:000000,op:arith8,pos:31,val:+34,+cov b/src/exchange/afl-tests/id:000307,src:000000,op:arith8,pos:31,val:+34,+cov
index 867da0989..867da0989 100644
--- a/src/mint/afl-tests/id:000307,src:000000,op:arith8,pos:31,val:+34,+cov
+++ b/src/exchange/afl-tests/id:000307,src:000000,op:arith8,pos:31,val:+34,+cov
diff --git a/src/mint/afl-tests/id:000307,src:000000,op:arith8,pos:33,val:-15,+cov b/src/exchange/afl-tests/id:000307,src:000000,op:arith8,pos:33,val:-15,+cov
index 5a265f063..5a265f063 100644
--- a/src/mint/afl-tests/id:000307,src:000000,op:arith8,pos:33,val:-15,+cov
+++ b/src/exchange/afl-tests/id:000307,src:000000,op:arith8,pos:33,val:-15,+cov
diff --git a/src/mint/afl-tests/id:000308,src:000000,op:arith8,pos:32,val:+10,+cov b/src/exchange/afl-tests/id:000308,src:000000,op:arith8,pos:32,val:+10,+cov
index 96afd8789..96afd8789 100644
--- a/src/mint/afl-tests/id:000308,src:000000,op:arith8,pos:32,val:+10,+cov
+++ b/src/exchange/afl-tests/id:000308,src:000000,op:arith8,pos:32,val:+10,+cov
diff --git a/src/mint/afl-tests/id:000308,src:000000,op:arith8,pos:34,val:-27,+cov b/src/exchange/afl-tests/id:000308,src:000000,op:arith8,pos:34,val:-27,+cov
index 5f4c01bfb..5f4c01bfb 100644
--- a/src/mint/afl-tests/id:000308,src:000000,op:arith8,pos:34,val:-27,+cov
+++ b/src/exchange/afl-tests/id:000308,src:000000,op:arith8,pos:34,val:-27,+cov
diff --git a/src/mint/afl-tests/id:000309,src:000000,op:arith8,pos:32,val:-20,+cov b/src/exchange/afl-tests/id:000309,src:000000,op:arith8,pos:32,val:-20,+cov
index cf060fe14..cf060fe14 100644
--- a/src/mint/afl-tests/id:000309,src:000000,op:arith8,pos:32,val:-20,+cov
+++ b/src/exchange/afl-tests/id:000309,src:000000,op:arith8,pos:32,val:-20,+cov
diff --git a/src/mint/afl-tests/id:000309,src:000000,op:arith8,pos:34,val:+34,+cov b/src/exchange/afl-tests/id:000309,src:000000,op:arith8,pos:34,val:+34,+cov
index 8cd22904a..8cd22904a 100644
--- a/src/mint/afl-tests/id:000309,src:000000,op:arith8,pos:34,val:+34,+cov
+++ b/src/exchange/afl-tests/id:000309,src:000000,op:arith8,pos:34,val:+34,+cov
diff --git a/src/mint/afl-tests/id:000310,src:000000,op:arith8,pos:33,val:+20,+cov b/src/exchange/afl-tests/id:000310,src:000000,op:arith8,pos:33,val:+20,+cov
index eef35d6e9..eef35d6e9 100644
--- a/src/mint/afl-tests/id:000310,src:000000,op:arith8,pos:33,val:+20,+cov
+++ b/src/exchange/afl-tests/id:000310,src:000000,op:arith8,pos:33,val:+20,+cov
diff --git a/src/mint/afl-tests/id:000310,src:000000,op:arith8,pos:35,val:+18,+cov b/src/exchange/afl-tests/id:000310,src:000000,op:arith8,pos:35,val:+18,+cov
index 39ff8930c..39ff8930c 100644
--- a/src/mint/afl-tests/id:000310,src:000000,op:arith8,pos:35,val:+18,+cov
+++ b/src/exchange/afl-tests/id:000310,src:000000,op:arith8,pos:35,val:+18,+cov
diff --git a/src/mint/afl-tests/id:000311,src:000000,op:arith8,pos:33,val:+24,+cov b/src/exchange/afl-tests/id:000311,src:000000,op:arith8,pos:33,val:+24,+cov
index 54136c35e..54136c35e 100644
--- a/src/mint/afl-tests/id:000311,src:000000,op:arith8,pos:33,val:+24,+cov
+++ b/src/exchange/afl-tests/id:000311,src:000000,op:arith8,pos:33,val:+24,+cov
diff --git a/src/mint/afl-tests/id:000311,src:000000,op:arith8,pos:35,val:-27,+cov b/src/exchange/afl-tests/id:000311,src:000000,op:arith8,pos:35,val:-27,+cov
index 1e8c67e55..1e8c67e55 100644
--- a/src/mint/afl-tests/id:000311,src:000000,op:arith8,pos:35,val:-27,+cov
+++ b/src/exchange/afl-tests/id:000311,src:000000,op:arith8,pos:35,val:-27,+cov
diff --git a/src/mint/afl-tests/id:000312,src:000000,op:arith8,pos:34,val:-3,+cov b/src/exchange/afl-tests/id:000312,src:000000,op:arith8,pos:34,val:-3,+cov
index 784a8b8ee..784a8b8ee 100644
--- a/src/mint/afl-tests/id:000312,src:000000,op:arith8,pos:34,val:-3,+cov
+++ b/src/exchange/afl-tests/id:000312,src:000000,op:arith8,pos:34,val:-3,+cov
diff --git a/src/mint/afl-tests/id:000312,src:000000,op:arith8,pos:35,val:+35,+cov b/src/exchange/afl-tests/id:000312,src:000000,op:arith8,pos:35,val:+35,+cov
index 79e7968a1..79e7968a1 100644
--- a/src/mint/afl-tests/id:000312,src:000000,op:arith8,pos:35,val:+35,+cov
+++ b/src/exchange/afl-tests/id:000312,src:000000,op:arith8,pos:35,val:+35,+cov
diff --git a/src/mint/afl-tests/id:000313,src:000000,op:arith8,pos:34,val:+18,+cov b/src/exchange/afl-tests/id:000313,src:000000,op:arith8,pos:34,val:+18,+cov
index 1c066c9b0..1c066c9b0 100644
--- a/src/mint/afl-tests/id:000313,src:000000,op:arith8,pos:34,val:+18,+cov
+++ b/src/exchange/afl-tests/id:000313,src:000000,op:arith8,pos:34,val:+18,+cov
diff --git a/src/mint/afl-tests/id:000313,src:000000,op:arith8,pos:36,val:+13,+cov b/src/exchange/afl-tests/id:000313,src:000000,op:arith8,pos:36,val:+13,+cov
index 0c03053cc..0c03053cc 100644
--- a/src/mint/afl-tests/id:000313,src:000000,op:arith8,pos:36,val:+13,+cov
+++ b/src/exchange/afl-tests/id:000313,src:000000,op:arith8,pos:36,val:+13,+cov
diff --git a/src/mint/afl-tests/id:000314,src:000000,op:arith8,pos:34,val:-30,+cov b/src/exchange/afl-tests/id:000314,src:000000,op:arith8,pos:34,val:-30,+cov
index c1cb683ed..c1cb683ed 100644
--- a/src/mint/afl-tests/id:000314,src:000000,op:arith8,pos:34,val:-30,+cov
+++ b/src/exchange/afl-tests/id:000314,src:000000,op:arith8,pos:34,val:-30,+cov
diff --git a/src/mint/afl-tests/id:000314,src:000000,op:arith8,pos:36,val:+32,+cov b/src/exchange/afl-tests/id:000314,src:000000,op:arith8,pos:36,val:+32,+cov
index de112273f..de112273f 100644
--- a/src/mint/afl-tests/id:000314,src:000000,op:arith8,pos:36,val:+32,+cov
+++ b/src/exchange/afl-tests/id:000314,src:000000,op:arith8,pos:36,val:+32,+cov
diff --git a/src/mint/afl-tests/id:000315,src:000000,op:arith8,pos:35,val:+17,+cov b/src/exchange/afl-tests/id:000315,src:000000,op:arith8,pos:35,val:+17,+cov
index 2ebedf6dc..2ebedf6dc 100644
--- a/src/mint/afl-tests/id:000315,src:000000,op:arith8,pos:35,val:+17,+cov
+++ b/src/exchange/afl-tests/id:000315,src:000000,op:arith8,pos:35,val:+17,+cov
diff --git a/src/mint/afl-tests/id:000315,src:000000,op:arith8,pos:37,val:+24,+cov b/src/exchange/afl-tests/id:000315,src:000000,op:arith8,pos:37,val:+24,+cov
index 5aec0d42d..5aec0d42d 100644
--- a/src/mint/afl-tests/id:000315,src:000000,op:arith8,pos:37,val:+24,+cov
+++ b/src/exchange/afl-tests/id:000315,src:000000,op:arith8,pos:37,val:+24,+cov
diff --git a/src/mint/afl-tests/id:000316,src:000000,op:arith8,pos:35,val:-19,+cov b/src/exchange/afl-tests/id:000316,src:000000,op:arith8,pos:35,val:-19,+cov
index cd15cde9d..cd15cde9d 100644
--- a/src/mint/afl-tests/id:000316,src:000000,op:arith8,pos:35,val:-19,+cov
+++ b/src/exchange/afl-tests/id:000316,src:000000,op:arith8,pos:35,val:-19,+cov
diff --git a/src/mint/afl-tests/id:000316,src:000000,op:arith8,pos:37,val:+32,+cov b/src/exchange/afl-tests/id:000316,src:000000,op:arith8,pos:37,val:+32,+cov
index dcc0db138..dcc0db138 100644
--- a/src/mint/afl-tests/id:000316,src:000000,op:arith8,pos:37,val:+32,+cov
+++ b/src/exchange/afl-tests/id:000316,src:000000,op:arith8,pos:37,val:+32,+cov
diff --git a/src/mint/afl-tests/id:000317,src:000000,op:arith8,pos:36,val:-26,+cov b/src/exchange/afl-tests/id:000317,src:000000,op:arith8,pos:36,val:-26,+cov
index 2f7d8883f..2f7d8883f 100644
--- a/src/mint/afl-tests/id:000317,src:000000,op:arith8,pos:36,val:-26,+cov
+++ b/src/exchange/afl-tests/id:000317,src:000000,op:arith8,pos:36,val:-26,+cov
diff --git a/src/mint/afl-tests/id:000317,src:000000,op:arith8,pos:38,val:-35,+cov b/src/exchange/afl-tests/id:000317,src:000000,op:arith8,pos:38,val:-35,+cov
index 01ef24ba5..01ef24ba5 100644
--- a/src/mint/afl-tests/id:000317,src:000000,op:arith8,pos:38,val:-35,+cov
+++ b/src/exchange/afl-tests/id:000317,src:000000,op:arith8,pos:38,val:-35,+cov
diff --git a/src/mint/afl-tests/id:000318,src:000000,op:arith8,pos:36,val:+27,+cov b/src/exchange/afl-tests/id:000318,src:000000,op:arith8,pos:36,val:+27,+cov
index d8d0b5a1e..d8d0b5a1e 100644
--- a/src/mint/afl-tests/id:000318,src:000000,op:arith8,pos:36,val:+27,+cov
+++ b/src/exchange/afl-tests/id:000318,src:000000,op:arith8,pos:36,val:+27,+cov
diff --git a/src/mint/afl-tests/id:000318,src:000000,op:arith8,pos:39,val:+18,+cov b/src/exchange/afl-tests/id:000318,src:000000,op:arith8,pos:39,val:+18,+cov
index 3182b8002..3182b8002 100644
--- a/src/mint/afl-tests/id:000318,src:000000,op:arith8,pos:39,val:+18,+cov
+++ b/src/exchange/afl-tests/id:000318,src:000000,op:arith8,pos:39,val:+18,+cov
diff --git a/src/mint/afl-tests/id:000319,src:000000,op:arith8,pos:36,val:+32,+cov b/src/exchange/afl-tests/id:000319,src:000000,op:arith8,pos:36,val:+32,+cov
index de112273f..de112273f 100644
--- a/src/mint/afl-tests/id:000319,src:000000,op:arith8,pos:36,val:+32,+cov
+++ b/src/exchange/afl-tests/id:000319,src:000000,op:arith8,pos:36,val:+32,+cov
diff --git a/src/mint/afl-tests/id:000319,src:000000,op:arith8,pos:39,val:-23,+cov b/src/exchange/afl-tests/id:000319,src:000000,op:arith8,pos:39,val:-23,+cov
index 04deb0197..04deb0197 100644
--- a/src/mint/afl-tests/id:000319,src:000000,op:arith8,pos:39,val:-23,+cov
+++ b/src/exchange/afl-tests/id:000319,src:000000,op:arith8,pos:39,val:-23,+cov
diff --git a/src/mint/afl-tests/id:000320,src:000000,op:arith8,pos:37,val:-9,+cov b/src/exchange/afl-tests/id:000320,src:000000,op:arith8,pos:37,val:-9,+cov
index 37328bc13..37328bc13 100644
--- a/src/mint/afl-tests/id:000320,src:000000,op:arith8,pos:37,val:-9,+cov
+++ b/src/exchange/afl-tests/id:000320,src:000000,op:arith8,pos:37,val:-9,+cov
diff --git a/src/mint/afl-tests/id:000320,src:000000,op:arith8,pos:39,val:-24,+cov b/src/exchange/afl-tests/id:000320,src:000000,op:arith8,pos:39,val:-24,+cov
index e2a4f6109..e2a4f6109 100644
--- a/src/mint/afl-tests/id:000320,src:000000,op:arith8,pos:39,val:-24,+cov
+++ b/src/exchange/afl-tests/id:000320,src:000000,op:arith8,pos:39,val:-24,+cov
diff --git a/src/mint/afl-tests/id:000321,src:000000,op:arith8,pos:37,val:+21 b/src/exchange/afl-tests/id:000321,src:000000,op:arith8,pos:37,val:+21
index 434e64b8a..434e64b8a 100644
--- a/src/mint/afl-tests/id:000321,src:000000,op:arith8,pos:37,val:+21
+++ b/src/exchange/afl-tests/id:000321,src:000000,op:arith8,pos:37,val:+21
diff --git a/src/mint/afl-tests/id:000321,src:000000,op:arith8,pos:39,val:+25,+cov b/src/exchange/afl-tests/id:000321,src:000000,op:arith8,pos:39,val:+25,+cov
index fadf00ff8..fadf00ff8 100644
--- a/src/mint/afl-tests/id:000321,src:000000,op:arith8,pos:39,val:+25,+cov
+++ b/src/exchange/afl-tests/id:000321,src:000000,op:arith8,pos:39,val:+25,+cov
diff --git a/src/mint/afl-tests/id:000322,src:000000,op:arith8,pos:37,val:+24,+cov b/src/exchange/afl-tests/id:000322,src:000000,op:arith8,pos:37,val:+24,+cov
index 5aec0d42d..5aec0d42d 100644
--- a/src/mint/afl-tests/id:000322,src:000000,op:arith8,pos:37,val:+24,+cov
+++ b/src/exchange/afl-tests/id:000322,src:000000,op:arith8,pos:37,val:+24,+cov
diff --git a/src/mint/afl-tests/id:000322,src:000000,op:arith8,pos:40,val:-21,+cov b/src/exchange/afl-tests/id:000322,src:000000,op:arith8,pos:40,val:-21,+cov
index 84863ad69..84863ad69 100644
--- a/src/mint/afl-tests/id:000322,src:000000,op:arith8,pos:40,val:-21,+cov
+++ b/src/exchange/afl-tests/id:000322,src:000000,op:arith8,pos:40,val:-21,+cov
diff --git a/src/mint/afl-tests/id:000323,src:000000,op:arith8,pos:39,val:+13,+cov b/src/exchange/afl-tests/id:000323,src:000000,op:arith8,pos:39,val:+13,+cov
index 77572467c..77572467c 100644
--- a/src/mint/afl-tests/id:000323,src:000000,op:arith8,pos:39,val:+13,+cov
+++ b/src/exchange/afl-tests/id:000323,src:000000,op:arith8,pos:39,val:+13,+cov
diff --git a/src/mint/afl-tests/id:000323,src:000000,op:arith8,pos:41,val:-5,+cov b/src/exchange/afl-tests/id:000323,src:000000,op:arith8,pos:41,val:-5,+cov
index 05370d441..05370d441 100644
--- a/src/mint/afl-tests/id:000323,src:000000,op:arith8,pos:41,val:-5,+cov
+++ b/src/exchange/afl-tests/id:000323,src:000000,op:arith8,pos:41,val:-5,+cov
diff --git a/src/mint/afl-tests/id:000324,src:000000,op:arith8,pos:39,val:-23,+cov b/src/exchange/afl-tests/id:000324,src:000000,op:arith8,pos:39,val:-23,+cov
index 04deb0197..04deb0197 100644
--- a/src/mint/afl-tests/id:000324,src:000000,op:arith8,pos:39,val:-23,+cov
+++ b/src/exchange/afl-tests/id:000324,src:000000,op:arith8,pos:39,val:-23,+cov
diff --git a/src/mint/afl-tests/id:000324,src:000000,op:arith8,pos:41,val:+13,+cov b/src/exchange/afl-tests/id:000324,src:000000,op:arith8,pos:41,val:+13,+cov
index ade405849..ade405849 100644
--- a/src/mint/afl-tests/id:000324,src:000000,op:arith8,pos:41,val:+13,+cov
+++ b/src/exchange/afl-tests/id:000324,src:000000,op:arith8,pos:41,val:+13,+cov
diff --git a/src/mint/afl-tests/id:000325,src:000000,op:arith8,pos:40,val:+20,+cov b/src/exchange/afl-tests/id:000325,src:000000,op:arith8,pos:40,val:+20,+cov
index 201588bd2..201588bd2 100644
--- a/src/mint/afl-tests/id:000325,src:000000,op:arith8,pos:40,val:+20,+cov
+++ b/src/exchange/afl-tests/id:000325,src:000000,op:arith8,pos:40,val:+20,+cov
diff --git a/src/mint/afl-tests/id:000325,src:000000,op:arith8,pos:41,val:+26,+cov b/src/exchange/afl-tests/id:000325,src:000000,op:arith8,pos:41,val:+26,+cov
index 6f6d851cd..6f6d851cd 100644
--- a/src/mint/afl-tests/id:000325,src:000000,op:arith8,pos:41,val:+26,+cov
+++ b/src/exchange/afl-tests/id:000325,src:000000,op:arith8,pos:41,val:+26,+cov
diff --git a/src/mint/afl-tests/id:000326,src:000000,op:arith8,pos:40,val:+27,+cov b/src/exchange/afl-tests/id:000326,src:000000,op:arith8,pos:40,val:+27,+cov
index 45220e0ac..45220e0ac 100644
--- a/src/mint/afl-tests/id:000326,src:000000,op:arith8,pos:40,val:+27,+cov
+++ b/src/exchange/afl-tests/id:000326,src:000000,op:arith8,pos:40,val:+27,+cov
diff --git a/src/mint/afl-tests/id:000326,src:000000,op:arith8,pos:41,val:+27,+cov b/src/exchange/afl-tests/id:000326,src:000000,op:arith8,pos:41,val:+27,+cov
index f4fc79ece..f4fc79ece 100644
--- a/src/mint/afl-tests/id:000326,src:000000,op:arith8,pos:41,val:+27,+cov
+++ b/src/exchange/afl-tests/id:000326,src:000000,op:arith8,pos:41,val:+27,+cov
diff --git a/src/mint/afl-tests/id:000327,src:000000,op:arith8,pos:41,val:-33,+cov b/src/exchange/afl-tests/id:000327,src:000000,op:arith8,pos:41,val:-33,+cov
index 1214430bd..1214430bd 100644
--- a/src/mint/afl-tests/id:000327,src:000000,op:arith8,pos:41,val:-33,+cov
+++ b/src/exchange/afl-tests/id:000327,src:000000,op:arith8,pos:41,val:-33,+cov
diff --git a/src/mint/afl-tests/id:000327,src:000000,op:arith8,pos:42,val:+29,+cov b/src/exchange/afl-tests/id:000327,src:000000,op:arith8,pos:42,val:+29,+cov
index fbeb7bd6e..fbeb7bd6e 100644
--- a/src/mint/afl-tests/id:000327,src:000000,op:arith8,pos:42,val:+29,+cov
+++ b/src/exchange/afl-tests/id:000327,src:000000,op:arith8,pos:42,val:+29,+cov
diff --git a/src/mint/afl-tests/id:000328,src:000000,op:arith8,pos:41,val:+35,+cov b/src/exchange/afl-tests/id:000328,src:000000,op:arith8,pos:41,val:+35,+cov
index f1effb60a..f1effb60a 100644
--- a/src/mint/afl-tests/id:000328,src:000000,op:arith8,pos:41,val:+35,+cov
+++ b/src/exchange/afl-tests/id:000328,src:000000,op:arith8,pos:41,val:+35,+cov
diff --git a/src/mint/afl-tests/id:000328,src:000000,op:arith8,pos:43,val:-33,+cov b/src/exchange/afl-tests/id:000328,src:000000,op:arith8,pos:43,val:-33,+cov
index 6f2b6fc48..6f2b6fc48 100644
--- a/src/mint/afl-tests/id:000328,src:000000,op:arith8,pos:43,val:-33,+cov
+++ b/src/exchange/afl-tests/id:000328,src:000000,op:arith8,pos:43,val:-33,+cov
diff --git a/src/mint/afl-tests/id:000329,src:000000,op:arith8,pos:42,val:-6,+cov b/src/exchange/afl-tests/id:000329,src:000000,op:arith8,pos:42,val:-6,+cov
index 9a521a0e5..9a521a0e5 100644
--- a/src/mint/afl-tests/id:000329,src:000000,op:arith8,pos:42,val:-6,+cov
+++ b/src/exchange/afl-tests/id:000329,src:000000,op:arith8,pos:42,val:-6,+cov
diff --git a/src/mint/afl-tests/id:000329,src:000000,op:arith8,pos:44,val:+17,+cov b/src/exchange/afl-tests/id:000329,src:000000,op:arith8,pos:44,val:+17,+cov
index aa9ed97ab..aa9ed97ab 100644
--- a/src/mint/afl-tests/id:000329,src:000000,op:arith8,pos:44,val:+17,+cov
+++ b/src/exchange/afl-tests/id:000329,src:000000,op:arith8,pos:44,val:+17,+cov
diff --git a/src/mint/afl-tests/id:000330,src:000000,op:arith8,pos:42,val:+13,+cov b/src/exchange/afl-tests/id:000330,src:000000,op:arith8,pos:42,val:+13,+cov
index 265f9c882..265f9c882 100644
--- a/src/mint/afl-tests/id:000330,src:000000,op:arith8,pos:42,val:+13,+cov
+++ b/src/exchange/afl-tests/id:000330,src:000000,op:arith8,pos:42,val:+13,+cov
diff --git a/src/mint/afl-tests/id:000330,src:000000,op:arith8,pos:45,val:-5,+cov b/src/exchange/afl-tests/id:000330,src:000000,op:arith8,pos:45,val:-5,+cov
index be5fd9601..be5fd9601 100644
--- a/src/mint/afl-tests/id:000330,src:000000,op:arith8,pos:45,val:-5,+cov
+++ b/src/exchange/afl-tests/id:000330,src:000000,op:arith8,pos:45,val:-5,+cov
diff --git a/src/mint/afl-tests/id:000331,src:000000,op:arith8,pos:42,val:+18,+cov b/src/exchange/afl-tests/id:000331,src:000000,op:arith8,pos:42,val:+18,+cov
index ed24295ca..ed24295ca 100644
--- a/src/mint/afl-tests/id:000331,src:000000,op:arith8,pos:42,val:+18,+cov
+++ b/src/exchange/afl-tests/id:000331,src:000000,op:arith8,pos:42,val:+18,+cov
diff --git a/src/mint/afl-tests/id:000331,src:000000,op:arith8,pos:45,val:-11,+cov b/src/exchange/afl-tests/id:000331,src:000000,op:arith8,pos:45,val:-11,+cov
index e104a0ff9..e104a0ff9 100644
--- a/src/mint/afl-tests/id:000331,src:000000,op:arith8,pos:45,val:-11,+cov
+++ b/src/exchange/afl-tests/id:000331,src:000000,op:arith8,pos:45,val:-11,+cov
diff --git a/src/mint/afl-tests/id:000332,src:000000,op:arith8,pos:43,val:-23,+cov b/src/exchange/afl-tests/id:000332,src:000000,op:arith8,pos:43,val:-23,+cov
index a76187ff3..a76187ff3 100644
--- a/src/mint/afl-tests/id:000332,src:000000,op:arith8,pos:43,val:-23,+cov
+++ b/src/exchange/afl-tests/id:000332,src:000000,op:arith8,pos:43,val:-23,+cov
diff --git a/src/mint/afl-tests/id:000332,src:000000,op:arith8,pos:45,val:+19,+cov b/src/exchange/afl-tests/id:000332,src:000000,op:arith8,pos:45,val:+19,+cov
index 890ecd562..890ecd562 100644
--- a/src/mint/afl-tests/id:000332,src:000000,op:arith8,pos:45,val:+19,+cov
+++ b/src/exchange/afl-tests/id:000332,src:000000,op:arith8,pos:45,val:+19,+cov
diff --git a/src/mint/afl-tests/id:000333,src:000000,op:arith8,pos:43,val:+33,+cov b/src/exchange/afl-tests/id:000333,src:000000,op:arith8,pos:43,val:+33,+cov
index a93066c16..a93066c16 100644
--- a/src/mint/afl-tests/id:000333,src:000000,op:arith8,pos:43,val:+33,+cov
+++ b/src/exchange/afl-tests/id:000333,src:000000,op:arith8,pos:43,val:+33,+cov
diff --git a/src/mint/afl-tests/id:000333,src:000000,op:arith8,pos:51,val:-12,+cov b/src/exchange/afl-tests/id:000333,src:000000,op:arith8,pos:51,val:-12,+cov
index 48b4263e2..48b4263e2 100644
--- a/src/mint/afl-tests/id:000333,src:000000,op:arith8,pos:51,val:-12,+cov
+++ b/src/exchange/afl-tests/id:000333,src:000000,op:arith8,pos:51,val:-12,+cov
diff --git a/src/mint/afl-tests/id:000334,src:000000,op:arith8,pos:44,val:+11,+cov b/src/exchange/afl-tests/id:000334,src:000000,op:arith8,pos:44,val:+11,+cov
index 22c401b0e..22c401b0e 100644
--- a/src/mint/afl-tests/id:000334,src:000000,op:arith8,pos:44,val:+11,+cov
+++ b/src/exchange/afl-tests/id:000334,src:000000,op:arith8,pos:44,val:+11,+cov
diff --git a/src/mint/afl-tests/id:000334,src:000000,op:arith8,pos:51,val:+14,+cov b/src/exchange/afl-tests/id:000334,src:000000,op:arith8,pos:51,val:+14,+cov
index 197abf747..197abf747 100644
--- a/src/mint/afl-tests/id:000334,src:000000,op:arith8,pos:51,val:+14,+cov
+++ b/src/exchange/afl-tests/id:000334,src:000000,op:arith8,pos:51,val:+14,+cov
diff --git a/src/mint/afl-tests/id:000335,src:000000,op:arith8,pos:45,val:-24,+cov b/src/exchange/afl-tests/id:000335,src:000000,op:arith8,pos:45,val:-24,+cov
index 75f8c8168..75f8c8168 100644
--- a/src/mint/afl-tests/id:000335,src:000000,op:arith8,pos:45,val:-24,+cov
+++ b/src/exchange/afl-tests/id:000335,src:000000,op:arith8,pos:45,val:-24,+cov
diff --git a/src/mint/afl-tests/id:000335,src:000000,op:arith8,pos:51,val:-22,+cov b/src/exchange/afl-tests/id:000335,src:000000,op:arith8,pos:51,val:-22,+cov
index c6c8c7e77..c6c8c7e77 100644
--- a/src/mint/afl-tests/id:000335,src:000000,op:arith8,pos:51,val:-22,+cov
+++ b/src/exchange/afl-tests/id:000335,src:000000,op:arith8,pos:51,val:-22,+cov
diff --git a/src/mint/afl-tests/id:000336,src:000000,op:arith8,pos:45,val:-27,+cov b/src/exchange/afl-tests/id:000336,src:000000,op:arith8,pos:45,val:-27,+cov
index a1d9ecf23..a1d9ecf23 100644
--- a/src/mint/afl-tests/id:000336,src:000000,op:arith8,pos:45,val:-27,+cov
+++ b/src/exchange/afl-tests/id:000336,src:000000,op:arith8,pos:45,val:-27,+cov
diff --git a/src/mint/afl-tests/id:000336,src:000000,op:arith8,pos:51,val:-23,+cov b/src/exchange/afl-tests/id:000336,src:000000,op:arith8,pos:51,val:-23,+cov
index 9af2a6024..9af2a6024 100644
--- a/src/mint/afl-tests/id:000336,src:000000,op:arith8,pos:51,val:-23,+cov
+++ b/src/exchange/afl-tests/id:000336,src:000000,op:arith8,pos:51,val:-23,+cov
diff --git a/src/mint/afl-tests/id:000337,src:000000,op:arith8,pos:46,val:+7,+cov b/src/exchange/afl-tests/id:000337,src:000000,op:arith8,pos:46,val:+7,+cov
index 4385a7c57..4385a7c57 100644
--- a/src/mint/afl-tests/id:000337,src:000000,op:arith8,pos:46,val:+7,+cov
+++ b/src/exchange/afl-tests/id:000337,src:000000,op:arith8,pos:46,val:+7,+cov
diff --git a/src/mint/afl-tests/id:000337,src:000000,op:arith8,pos:52,val:-14,+cov b/src/exchange/afl-tests/id:000337,src:000000,op:arith8,pos:52,val:-14,+cov
index d25613950..d25613950 100644
--- a/src/mint/afl-tests/id:000337,src:000000,op:arith8,pos:52,val:-14,+cov
+++ b/src/exchange/afl-tests/id:000337,src:000000,op:arith8,pos:52,val:-14,+cov
diff --git a/src/mint/afl-tests/id:000338,src:000000,op:arith8,pos:46,val:-21,+cov b/src/exchange/afl-tests/id:000338,src:000000,op:arith8,pos:46,val:-21,+cov
index 95e84f3f7..95e84f3f7 100644
--- a/src/mint/afl-tests/id:000338,src:000000,op:arith8,pos:46,val:-21,+cov
+++ b/src/exchange/afl-tests/id:000338,src:000000,op:arith8,pos:46,val:-21,+cov
diff --git a/src/mint/afl-tests/id:000338,src:000000,op:arith8,pos:52,val:+28,+cov b/src/exchange/afl-tests/id:000338,src:000000,op:arith8,pos:52,val:+28,+cov
index 7b3de684c..7b3de684c 100644
--- a/src/mint/afl-tests/id:000338,src:000000,op:arith8,pos:52,val:+28,+cov
+++ b/src/exchange/afl-tests/id:000338,src:000000,op:arith8,pos:52,val:+28,+cov
diff --git a/src/mint/afl-tests/id:000339,src:000000,op:arith8,pos:46,val:+31,+cov b/src/exchange/afl-tests/id:000339,src:000000,op:arith8,pos:46,val:+31,+cov
index 478dfb61b..478dfb61b 100644
--- a/src/mint/afl-tests/id:000339,src:000000,op:arith8,pos:46,val:+31,+cov
+++ b/src/exchange/afl-tests/id:000339,src:000000,op:arith8,pos:46,val:+31,+cov
diff --git a/src/mint/afl-tests/id:000339,src:000000,op:arith8,pos:53,val:+9,+cov b/src/exchange/afl-tests/id:000339,src:000000,op:arith8,pos:53,val:+9,+cov
index ee250cea6..ee250cea6 100644
--- a/src/mint/afl-tests/id:000339,src:000000,op:arith8,pos:53,val:+9,+cov
+++ b/src/exchange/afl-tests/id:000339,src:000000,op:arith8,pos:53,val:+9,+cov
diff --git a/src/mint/afl-tests/id:000340,src:000000,op:arith8,pos:49,val:+16,+cov b/src/exchange/afl-tests/id:000340,src:000000,op:arith8,pos:49,val:+16,+cov
index b6021dc00..b6021dc00 100644
--- a/src/mint/afl-tests/id:000340,src:000000,op:arith8,pos:49,val:+16,+cov
+++ b/src/exchange/afl-tests/id:000340,src:000000,op:arith8,pos:49,val:+16,+cov
diff --git a/src/mint/afl-tests/id:000340,src:000000,op:arith8,pos:53,val:-11,+cov b/src/exchange/afl-tests/id:000340,src:000000,op:arith8,pos:53,val:-11,+cov
index 08ce9745c..08ce9745c 100644
--- a/src/mint/afl-tests/id:000340,src:000000,op:arith8,pos:53,val:-11,+cov
+++ b/src/exchange/afl-tests/id:000340,src:000000,op:arith8,pos:53,val:-11,+cov
diff --git a/src/mint/afl-tests/id:000341,src:000000,op:arith8,pos:49,val:-26,+cov b/src/exchange/afl-tests/id:000341,src:000000,op:arith8,pos:49,val:-26,+cov
index 5c62397e1..5c62397e1 100644
--- a/src/mint/afl-tests/id:000341,src:000000,op:arith8,pos:49,val:-26,+cov
+++ b/src/exchange/afl-tests/id:000341,src:000000,op:arith8,pos:49,val:-26,+cov
diff --git a/src/mint/afl-tests/id:000341,src:000000,op:arith8,pos:53,val:-17,+cov b/src/exchange/afl-tests/id:000341,src:000000,op:arith8,pos:53,val:-17,+cov
index b8cb610c3..b8cb610c3 100644
--- a/src/mint/afl-tests/id:000341,src:000000,op:arith8,pos:53,val:-17,+cov
+++ b/src/exchange/afl-tests/id:000341,src:000000,op:arith8,pos:53,val:-17,+cov
diff --git a/src/mint/afl-tests/id:000342,src:000000,op:arith8,pos:49,val:+34,+cov b/src/exchange/afl-tests/id:000342,src:000000,op:arith8,pos:49,val:+34,+cov
index 01649ac14..01649ac14 100644
--- a/src/mint/afl-tests/id:000342,src:000000,op:arith8,pos:49,val:+34,+cov
+++ b/src/exchange/afl-tests/id:000342,src:000000,op:arith8,pos:49,val:+34,+cov
diff --git a/src/mint/afl-tests/id:000342,src:000000,op:arith8,pos:53,val:-18,+cov b/src/exchange/afl-tests/id:000342,src:000000,op:arith8,pos:53,val:-18,+cov
index 476d139fa..476d139fa 100644
--- a/src/mint/afl-tests/id:000342,src:000000,op:arith8,pos:53,val:-18,+cov
+++ b/src/exchange/afl-tests/id:000342,src:000000,op:arith8,pos:53,val:-18,+cov
diff --git a/src/mint/afl-tests/id:000343,src:000000,op:arith8,pos:50,val:-7,+cov b/src/exchange/afl-tests/id:000343,src:000000,op:arith8,pos:50,val:-7,+cov
index 6b387c042..6b387c042 100644
--- a/src/mint/afl-tests/id:000343,src:000000,op:arith8,pos:50,val:-7,+cov
+++ b/src/exchange/afl-tests/id:000343,src:000000,op:arith8,pos:50,val:-7,+cov
diff --git a/src/mint/afl-tests/id:000343,src:000000,op:arith8,pos:53,val:-35,+cov b/src/exchange/afl-tests/id:000343,src:000000,op:arith8,pos:53,val:-35,+cov
index 55575e0de..55575e0de 100644
--- a/src/mint/afl-tests/id:000343,src:000000,op:arith8,pos:53,val:-35,+cov
+++ b/src/exchange/afl-tests/id:000343,src:000000,op:arith8,pos:53,val:-35,+cov
diff --git a/src/mint/afl-tests/id:000344,src:000000,op:arith8,pos:50,val:+22,+cov b/src/exchange/afl-tests/id:000344,src:000000,op:arith8,pos:50,val:+22,+cov
index 4f30622ad..4f30622ad 100644
--- a/src/mint/afl-tests/id:000344,src:000000,op:arith8,pos:50,val:+22,+cov
+++ b/src/exchange/afl-tests/id:000344,src:000000,op:arith8,pos:50,val:+22,+cov
diff --git a/src/mint/afl-tests/id:000344,src:000000,op:arith8,pos:54,val:-15,+cov b/src/exchange/afl-tests/id:000344,src:000000,op:arith8,pos:54,val:-15,+cov
index 384c20aea..384c20aea 100644
--- a/src/mint/afl-tests/id:000344,src:000000,op:arith8,pos:54,val:-15,+cov
+++ b/src/exchange/afl-tests/id:000344,src:000000,op:arith8,pos:54,val:-15,+cov
diff --git a/src/mint/afl-tests/id:000345,src:000000,op:arith8,pos:50,val:+24,+cov b/src/exchange/afl-tests/id:000345,src:000000,op:arith8,pos:50,val:+24,+cov
index dde5226a5..dde5226a5 100644
--- a/src/mint/afl-tests/id:000345,src:000000,op:arith8,pos:50,val:+24,+cov
+++ b/src/exchange/afl-tests/id:000345,src:000000,op:arith8,pos:50,val:+24,+cov
diff --git a/src/mint/afl-tests/id:000345,src:000000,op:arith8,pos:54,val:-22,+cov b/src/exchange/afl-tests/id:000345,src:000000,op:arith8,pos:54,val:-22,+cov
index 8dc2cc2b6..8dc2cc2b6 100644
--- a/src/mint/afl-tests/id:000345,src:000000,op:arith8,pos:54,val:-22,+cov
+++ b/src/exchange/afl-tests/id:000345,src:000000,op:arith8,pos:54,val:-22,+cov
diff --git a/src/mint/afl-tests/id:000346,src:000000,op:arith8,pos:50,val:-31,+cov b/src/exchange/afl-tests/id:000346,src:000000,op:arith8,pos:50,val:-31,+cov
index b427c527c..b427c527c 100644
--- a/src/mint/afl-tests/id:000346,src:000000,op:arith8,pos:50,val:-31,+cov
+++ b/src/exchange/afl-tests/id:000346,src:000000,op:arith8,pos:50,val:-31,+cov
diff --git a/src/mint/afl-tests/id:000346,src:000000,op:arith8,pos:55,val:-7 b/src/exchange/afl-tests/id:000346,src:000000,op:arith8,pos:55,val:-7
index 83853ac8b..83853ac8b 100644
--- a/src/mint/afl-tests/id:000346,src:000000,op:arith8,pos:55,val:-7
+++ b/src/exchange/afl-tests/id:000346,src:000000,op:arith8,pos:55,val:-7
diff --git a/src/mint/afl-tests/id:000347,src:000000,op:arith8,pos:51,val:-1,+cov b/src/exchange/afl-tests/id:000347,src:000000,op:arith8,pos:51,val:-1,+cov
index e77d55e74..e77d55e74 100644
--- a/src/mint/afl-tests/id:000347,src:000000,op:arith8,pos:51,val:-1,+cov
+++ b/src/exchange/afl-tests/id:000347,src:000000,op:arith8,pos:51,val:-1,+cov
diff --git a/src/mint/afl-tests/id:000347,src:000000,op:arith8,pos:55,val:-33,+cov b/src/exchange/afl-tests/id:000347,src:000000,op:arith8,pos:55,val:-33,+cov
index 79bb709e0..79bb709e0 100644
--- a/src/mint/afl-tests/id:000347,src:000000,op:arith8,pos:55,val:-33,+cov
+++ b/src/exchange/afl-tests/id:000347,src:000000,op:arith8,pos:55,val:-33,+cov
diff --git a/src/mint/afl-tests/id:000348,src:000000,op:arith8,pos:51,val:+18,+cov b/src/exchange/afl-tests/id:000348,src:000000,op:arith8,pos:51,val:+18,+cov
index 756e21abc..756e21abc 100644
--- a/src/mint/afl-tests/id:000348,src:000000,op:arith8,pos:51,val:+18,+cov
+++ b/src/exchange/afl-tests/id:000348,src:000000,op:arith8,pos:51,val:+18,+cov
diff --git a/src/mint/afl-tests/id:000348,src:000000,op:arith8,pos:55,val:-35,+cov b/src/exchange/afl-tests/id:000348,src:000000,op:arith8,pos:55,val:-35,+cov
index cc275f3a4..cc275f3a4 100644
--- a/src/mint/afl-tests/id:000348,src:000000,op:arith8,pos:55,val:-35,+cov
+++ b/src/exchange/afl-tests/id:000348,src:000000,op:arith8,pos:55,val:-35,+cov
diff --git a/src/mint/afl-tests/id:000349,src:000000,op:arith8,pos:52,val:-6,+cov b/src/exchange/afl-tests/id:000349,src:000000,op:arith8,pos:52,val:-6,+cov
index 51043edca..51043edca 100644
--- a/src/mint/afl-tests/id:000349,src:000000,op:arith8,pos:52,val:-6,+cov
+++ b/src/exchange/afl-tests/id:000349,src:000000,op:arith8,pos:52,val:-6,+cov
diff --git a/src/mint/afl-tests/id:000349,src:000000,op:arith8,pos:57,val:-14,+cov b/src/exchange/afl-tests/id:000349,src:000000,op:arith8,pos:57,val:-14,+cov
index 287ad5180..287ad5180 100644
--- a/src/mint/afl-tests/id:000349,src:000000,op:arith8,pos:57,val:-14,+cov
+++ b/src/exchange/afl-tests/id:000349,src:000000,op:arith8,pos:57,val:-14,+cov
diff --git a/src/mint/afl-tests/id:000350,src:000000,op:arith8,pos:52,val:+22,+cov b/src/exchange/afl-tests/id:000350,src:000000,op:arith8,pos:52,val:+22,+cov
index 58bfbf06f..58bfbf06f 100644
--- a/src/mint/afl-tests/id:000350,src:000000,op:arith8,pos:52,val:+22,+cov
+++ b/src/exchange/afl-tests/id:000350,src:000000,op:arith8,pos:52,val:+22,+cov
diff --git a/src/mint/afl-tests/id:000350,src:000000,op:arith8,pos:57,val:+28,+cov b/src/exchange/afl-tests/id:000350,src:000000,op:arith8,pos:57,val:+28,+cov
index 84c5ada46..84c5ada46 100644
--- a/src/mint/afl-tests/id:000350,src:000000,op:arith8,pos:57,val:+28,+cov
+++ b/src/exchange/afl-tests/id:000350,src:000000,op:arith8,pos:57,val:+28,+cov
diff --git a/src/mint/afl-tests/id:000351,src:000000,op:arith8,pos:52,val:-31,+cov b/src/exchange/afl-tests/id:000351,src:000000,op:arith8,pos:52,val:-31,+cov
index 1218a5644..1218a5644 100644
--- a/src/mint/afl-tests/id:000351,src:000000,op:arith8,pos:52,val:-31,+cov
+++ b/src/exchange/afl-tests/id:000351,src:000000,op:arith8,pos:52,val:-31,+cov
diff --git a/src/mint/afl-tests/id:000351,src:000000,op:arith8,pos:57,val:-29,+cov b/src/exchange/afl-tests/id:000351,src:000000,op:arith8,pos:57,val:-29,+cov
index 4c42e3349..4c42e3349 100644
--- a/src/mint/afl-tests/id:000351,src:000000,op:arith8,pos:57,val:-29,+cov
+++ b/src/exchange/afl-tests/id:000351,src:000000,op:arith8,pos:57,val:-29,+cov
diff --git a/src/mint/afl-tests/id:000352,src:000000,op:arith8,pos:53,val:-18,+cov b/src/exchange/afl-tests/id:000352,src:000000,op:arith8,pos:53,val:-18,+cov
index 476d139fa..476d139fa 100644
--- a/src/mint/afl-tests/id:000352,src:000000,op:arith8,pos:53,val:-18,+cov
+++ b/src/exchange/afl-tests/id:000352,src:000000,op:arith8,pos:53,val:-18,+cov
diff --git a/src/mint/afl-tests/id:000352,src:000000,op:arith8,pos:58,val:-29,+cov b/src/exchange/afl-tests/id:000352,src:000000,op:arith8,pos:58,val:-29,+cov
index ea61327a8..ea61327a8 100644
--- a/src/mint/afl-tests/id:000352,src:000000,op:arith8,pos:58,val:-29,+cov
+++ b/src/exchange/afl-tests/id:000352,src:000000,op:arith8,pos:58,val:-29,+cov
diff --git a/src/mint/afl-tests/id:000353,src:000000,op:arith8,pos:53,val:+27,+cov b/src/exchange/afl-tests/id:000353,src:000000,op:arith8,pos:53,val:+27,+cov
index 600a225c7..600a225c7 100644
--- a/src/mint/afl-tests/id:000353,src:000000,op:arith8,pos:53,val:+27,+cov
+++ b/src/exchange/afl-tests/id:000353,src:000000,op:arith8,pos:53,val:+27,+cov
diff --git a/src/mint/afl-tests/id:000353,src:000000,op:arith8,pos:59,val:+10,+cov b/src/exchange/afl-tests/id:000353,src:000000,op:arith8,pos:59,val:+10,+cov
index 511d2abaf..511d2abaf 100644
--- a/src/mint/afl-tests/id:000353,src:000000,op:arith8,pos:59,val:+10,+cov
+++ b/src/exchange/afl-tests/id:000353,src:000000,op:arith8,pos:59,val:+10,+cov
diff --git a/src/mint/afl-tests/id:000354,src:000000,op:arith8,pos:53,val:-27,+cov b/src/exchange/afl-tests/id:000354,src:000000,op:arith8,pos:53,val:-27,+cov
index 4416ec448..4416ec448 100644
--- a/src/mint/afl-tests/id:000354,src:000000,op:arith8,pos:53,val:-27,+cov
+++ b/src/exchange/afl-tests/id:000354,src:000000,op:arith8,pos:53,val:-27,+cov
diff --git a/src/mint/afl-tests/id:000354,src:000000,op:arith8,pos:59,val:+23,+cov b/src/exchange/afl-tests/id:000354,src:000000,op:arith8,pos:59,val:+23,+cov
index 7d8d86141..7d8d86141 100644
--- a/src/mint/afl-tests/id:000354,src:000000,op:arith8,pos:59,val:+23,+cov
+++ b/src/exchange/afl-tests/id:000354,src:000000,op:arith8,pos:59,val:+23,+cov
diff --git a/src/mint/afl-tests/id:000355,src:000000,op:arith8,pos:53,val:-28,+cov b/src/exchange/afl-tests/id:000355,src:000000,op:arith8,pos:53,val:-28,+cov
index 9242a73f3..9242a73f3 100644
--- a/src/mint/afl-tests/id:000355,src:000000,op:arith8,pos:53,val:-28,+cov
+++ b/src/exchange/afl-tests/id:000355,src:000000,op:arith8,pos:53,val:-28,+cov
diff --git a/src/mint/afl-tests/id:000355,src:000000,op:arith8,pos:62,val:+9,+cov b/src/exchange/afl-tests/id:000355,src:000000,op:arith8,pos:62,val:+9,+cov
index 73cde5c1f..73cde5c1f 100644
--- a/src/mint/afl-tests/id:000355,src:000000,op:arith8,pos:62,val:+9,+cov
+++ b/src/exchange/afl-tests/id:000355,src:000000,op:arith8,pos:62,val:+9,+cov
diff --git a/src/mint/afl-tests/id:000356,src:000000,op:arith8,pos:55,val:-2,+cov b/src/exchange/afl-tests/id:000356,src:000000,op:arith8,pos:55,val:-2,+cov
index 15b64e89f..15b64e89f 100644
--- a/src/mint/afl-tests/id:000356,src:000000,op:arith8,pos:55,val:-2,+cov
+++ b/src/exchange/afl-tests/id:000356,src:000000,op:arith8,pos:55,val:-2,+cov
diff --git a/src/mint/afl-tests/id:000356,src:000000,op:arith8,pos:62,val:-21,+cov b/src/exchange/afl-tests/id:000356,src:000000,op:arith8,pos:62,val:-21,+cov
index 9d31eb13c..9d31eb13c 100644
--- a/src/mint/afl-tests/id:000356,src:000000,op:arith8,pos:62,val:-21,+cov
+++ b/src/exchange/afl-tests/id:000356,src:000000,op:arith8,pos:62,val:-21,+cov
diff --git a/src/mint/afl-tests/id:000357,src:000000,op:arith8,pos:55,val:-7 b/src/exchange/afl-tests/id:000357,src:000000,op:arith8,pos:55,val:-7
index 83853ac8b..83853ac8b 100644
--- a/src/mint/afl-tests/id:000357,src:000000,op:arith8,pos:55,val:-7
+++ b/src/exchange/afl-tests/id:000357,src:000000,op:arith8,pos:55,val:-7
diff --git a/src/mint/afl-tests/id:000357,src:000000,op:arith8,pos:62,val:-23,+cov b/src/exchange/afl-tests/id:000357,src:000000,op:arith8,pos:62,val:-23,+cov
index 8aae00c08..8aae00c08 100644
--- a/src/mint/afl-tests/id:000357,src:000000,op:arith8,pos:62,val:-23,+cov
+++ b/src/exchange/afl-tests/id:000357,src:000000,op:arith8,pos:62,val:-23,+cov
diff --git a/src/mint/afl-tests/id:000358,src:000000,op:arith8,pos:55,val:-33,+cov b/src/exchange/afl-tests/id:000358,src:000000,op:arith8,pos:55,val:-33,+cov
index 79bb709e0..79bb709e0 100644
--- a/src/mint/afl-tests/id:000358,src:000000,op:arith8,pos:55,val:-33,+cov
+++ b/src/exchange/afl-tests/id:000358,src:000000,op:arith8,pos:55,val:-33,+cov
diff --git a/src/mint/afl-tests/id:000358,src:000000,op:arith8,pos:62,val:-35,+cov b/src/exchange/afl-tests/id:000358,src:000000,op:arith8,pos:62,val:-35,+cov
index 4f0f25f14..4f0f25f14 100644
--- a/src/mint/afl-tests/id:000358,src:000000,op:arith8,pos:62,val:-35,+cov
+++ b/src/exchange/afl-tests/id:000358,src:000000,op:arith8,pos:62,val:-35,+cov
diff --git a/src/mint/afl-tests/id:000359,src:000000,op:arith8,pos:56,val:-17,+cov b/src/exchange/afl-tests/id:000359,src:000000,op:arith8,pos:56,val:-17,+cov
index 96cb6e711..96cb6e711 100644
--- a/src/mint/afl-tests/id:000359,src:000000,op:arith8,pos:56,val:-17,+cov
+++ b/src/exchange/afl-tests/id:000359,src:000000,op:arith8,pos:56,val:-17,+cov
diff --git a/src/mint/afl-tests/id:000359,src:000000,op:arith8,pos:63,val:+3,+cov b/src/exchange/afl-tests/id:000359,src:000000,op:arith8,pos:63,val:+3,+cov
index 4c76060a5..4c76060a5 100644
--- a/src/mint/afl-tests/id:000359,src:000000,op:arith8,pos:63,val:+3,+cov
+++ b/src/exchange/afl-tests/id:000359,src:000000,op:arith8,pos:63,val:+3,+cov
diff --git a/src/mint/afl-tests/id:000360,src:000000,op:arith8,pos:56,val:+34,+cov b/src/exchange/afl-tests/id:000360,src:000000,op:arith8,pos:56,val:+34,+cov
index b2c0945dc..b2c0945dc 100644
--- a/src/mint/afl-tests/id:000360,src:000000,op:arith8,pos:56,val:+34,+cov
+++ b/src/exchange/afl-tests/id:000360,src:000000,op:arith8,pos:56,val:+34,+cov
diff --git a/src/mint/afl-tests/id:000360,src:000000,op:arith8,pos:64,val:-5,+cov b/src/exchange/afl-tests/id:000360,src:000000,op:arith8,pos:64,val:-5,+cov
index 36f40fe69..36f40fe69 100644
--- a/src/mint/afl-tests/id:000360,src:000000,op:arith8,pos:64,val:-5,+cov
+++ b/src/exchange/afl-tests/id:000360,src:000000,op:arith8,pos:64,val:-5,+cov
diff --git a/src/mint/afl-tests/id:000361,src:000000,op:arith8,pos:57,val:-23,+cov b/src/exchange/afl-tests/id:000361,src:000000,op:arith8,pos:57,val:-23,+cov
index 733f19152..733f19152 100644
--- a/src/mint/afl-tests/id:000361,src:000000,op:arith8,pos:57,val:-23,+cov
+++ b/src/exchange/afl-tests/id:000361,src:000000,op:arith8,pos:57,val:-23,+cov
diff --git a/src/mint/afl-tests/id:000361,src:000000,op:arith8,pos:64,val:-26,+cov b/src/exchange/afl-tests/id:000361,src:000000,op:arith8,pos:64,val:-26,+cov
index 4013f836c..4013f836c 100644
--- a/src/mint/afl-tests/id:000361,src:000000,op:arith8,pos:64,val:-26,+cov
+++ b/src/exchange/afl-tests/id:000361,src:000000,op:arith8,pos:64,val:-26,+cov
diff --git a/src/mint/afl-tests/id:000362,src:000000,op:arith8,pos:58,val:+34,+cov b/src/exchange/afl-tests/id:000362,src:000000,op:arith8,pos:58,val:+34,+cov
index 003f5f4bc..003f5f4bc 100644
--- a/src/mint/afl-tests/id:000362,src:000000,op:arith8,pos:58,val:+34,+cov
+++ b/src/exchange/afl-tests/id:000362,src:000000,op:arith8,pos:58,val:+34,+cov
diff --git a/src/mint/afl-tests/id:000362,src:000000,op:arith8,pos:65,val:-10,+cov b/src/exchange/afl-tests/id:000362,src:000000,op:arith8,pos:65,val:-10,+cov
index db763f9a8..db763f9a8 100644
--- a/src/mint/afl-tests/id:000362,src:000000,op:arith8,pos:65,val:-10,+cov
+++ b/src/exchange/afl-tests/id:000362,src:000000,op:arith8,pos:65,val:-10,+cov
diff --git a/src/mint/afl-tests/id:000363,src:000000,op:arith8,pos:60,val:-14,+cov b/src/exchange/afl-tests/id:000363,src:000000,op:arith8,pos:60,val:-14,+cov
index 1c86d6b65..1c86d6b65 100644
--- a/src/mint/afl-tests/id:000363,src:000000,op:arith8,pos:60,val:-14,+cov
+++ b/src/exchange/afl-tests/id:000363,src:000000,op:arith8,pos:60,val:-14,+cov
diff --git a/src/mint/afl-tests/id:000363,src:000000,op:arith8,pos:65,val:-27,+cov b/src/exchange/afl-tests/id:000363,src:000000,op:arith8,pos:65,val:-27,+cov
index 58a2799bd..58a2799bd 100644
--- a/src/mint/afl-tests/id:000363,src:000000,op:arith8,pos:65,val:-27,+cov
+++ b/src/exchange/afl-tests/id:000363,src:000000,op:arith8,pos:65,val:-27,+cov
diff --git a/src/mint/afl-tests/id:000364,src:000000,op:arith8,pos:60,val:-15,+cov b/src/exchange/afl-tests/id:000364,src:000000,op:arith8,pos:60,val:-15,+cov
index 8fb47065b..8fb47065b 100644
--- a/src/mint/afl-tests/id:000364,src:000000,op:arith8,pos:60,val:-15,+cov
+++ b/src/exchange/afl-tests/id:000364,src:000000,op:arith8,pos:60,val:-15,+cov
diff --git a/src/mint/afl-tests/id:000364,src:000000,op:arith8,pos:65,val:-30,+cov b/src/exchange/afl-tests/id:000364,src:000000,op:arith8,pos:65,val:-30,+cov
index 14a29e995..14a29e995 100644
--- a/src/mint/afl-tests/id:000364,src:000000,op:arith8,pos:65,val:-30,+cov
+++ b/src/exchange/afl-tests/id:000364,src:000000,op:arith8,pos:65,val:-30,+cov
diff --git a/src/mint/afl-tests/id:000365,src:000000,op:arith8,pos:60,val:-27,+cov b/src/exchange/afl-tests/id:000365,src:000000,op:arith8,pos:60,val:-27,+cov
index 6d8cf1eba..6d8cf1eba 100644
--- a/src/mint/afl-tests/id:000365,src:000000,op:arith8,pos:60,val:-27,+cov
+++ b/src/exchange/afl-tests/id:000365,src:000000,op:arith8,pos:60,val:-27,+cov
diff --git a/src/mint/afl-tests/id:000365,src:000000,op:arith8,pos:66,val:+13,+cov b/src/exchange/afl-tests/id:000365,src:000000,op:arith8,pos:66,val:+13,+cov
index 16cee21dd..16cee21dd 100644
--- a/src/mint/afl-tests/id:000365,src:000000,op:arith8,pos:66,val:+13,+cov
+++ b/src/exchange/afl-tests/id:000365,src:000000,op:arith8,pos:66,val:+13,+cov
diff --git a/src/mint/afl-tests/id:000366,src:000000,op:arith8,pos:62,val:+13,+cov b/src/exchange/afl-tests/id:000366,src:000000,op:arith8,pos:62,val:+13,+cov
index b3b6f749c..b3b6f749c 100644
--- a/src/mint/afl-tests/id:000366,src:000000,op:arith8,pos:62,val:+13,+cov
+++ b/src/exchange/afl-tests/id:000366,src:000000,op:arith8,pos:62,val:+13,+cov
diff --git a/src/mint/afl-tests/id:000366,src:000000,op:arith8,pos:67,val:-9 b/src/exchange/afl-tests/id:000366,src:000000,op:arith8,pos:67,val:-9
index 342b2c758..342b2c758 100644
--- a/src/mint/afl-tests/id:000366,src:000000,op:arith8,pos:67,val:-9
+++ b/src/exchange/afl-tests/id:000366,src:000000,op:arith8,pos:67,val:-9
diff --git a/src/mint/afl-tests/id:000367,src:000000,op:arith8,pos:62,val:-21,+cov b/src/exchange/afl-tests/id:000367,src:000000,op:arith8,pos:62,val:-21,+cov
index 9d31eb13c..9d31eb13c 100644
--- a/src/mint/afl-tests/id:000367,src:000000,op:arith8,pos:62,val:-21,+cov
+++ b/src/exchange/afl-tests/id:000367,src:000000,op:arith8,pos:62,val:-21,+cov
diff --git a/src/mint/afl-tests/id:000367,src:000000,op:arith8,pos:67,val:+15,+cov b/src/exchange/afl-tests/id:000367,src:000000,op:arith8,pos:67,val:+15,+cov
index ac73aaeba..ac73aaeba 100644
--- a/src/mint/afl-tests/id:000367,src:000000,op:arith8,pos:67,val:+15,+cov
+++ b/src/exchange/afl-tests/id:000367,src:000000,op:arith8,pos:67,val:+15,+cov
diff --git a/src/mint/afl-tests/id:000368,src:000000,op:arith8,pos:62,val:-23,+cov b/src/exchange/afl-tests/id:000368,src:000000,op:arith8,pos:62,val:-23,+cov
index 8aae00c08..8aae00c08 100644
--- a/src/mint/afl-tests/id:000368,src:000000,op:arith8,pos:62,val:-23,+cov
+++ b/src/exchange/afl-tests/id:000368,src:000000,op:arith8,pos:62,val:-23,+cov
diff --git a/src/mint/afl-tests/id:000368,src:000000,op:arith8,pos:67,val:-35 b/src/exchange/afl-tests/id:000368,src:000000,op:arith8,pos:67,val:-35
index d212fb451..d212fb451 100644
--- a/src/mint/afl-tests/id:000368,src:000000,op:arith8,pos:67,val:-35
+++ b/src/exchange/afl-tests/id:000368,src:000000,op:arith8,pos:67,val:-35
diff --git a/src/mint/afl-tests/id:000369,src:000000,op:arith8,pos:63,val:+6,+cov b/src/exchange/afl-tests/id:000369,src:000000,op:arith8,pos:63,val:+6,+cov
index 45b407399..45b407399 100644
--- a/src/mint/afl-tests/id:000369,src:000000,op:arith8,pos:63,val:+6,+cov
+++ b/src/exchange/afl-tests/id:000369,src:000000,op:arith8,pos:63,val:+6,+cov
diff --git a/src/mint/afl-tests/id:000369,src:000000,op:arith8,pos:72,val:+30,+cov b/src/exchange/afl-tests/id:000369,src:000000,op:arith8,pos:72,val:+30,+cov
index 1c8dcf9a3..1c8dcf9a3 100644
--- a/src/mint/afl-tests/id:000369,src:000000,op:arith8,pos:72,val:+30,+cov
+++ b/src/exchange/afl-tests/id:000369,src:000000,op:arith8,pos:72,val:+30,+cov
diff --git a/src/mint/afl-tests/id:000370,src:000000,op:arith8,pos:63,val:-18,+cov b/src/exchange/afl-tests/id:000370,src:000000,op:arith8,pos:63,val:-18,+cov
index 3af96a221..3af96a221 100644
--- a/src/mint/afl-tests/id:000370,src:000000,op:arith8,pos:63,val:-18,+cov
+++ b/src/exchange/afl-tests/id:000370,src:000000,op:arith8,pos:63,val:-18,+cov
diff --git a/src/mint/afl-tests/id:000370,src:000000,op:arith8,pos:72,val:-35,+cov b/src/exchange/afl-tests/id:000370,src:000000,op:arith8,pos:72,val:-35,+cov
index 4fbe66ead..4fbe66ead 100644
--- a/src/mint/afl-tests/id:000370,src:000000,op:arith8,pos:72,val:-35,+cov
+++ b/src/exchange/afl-tests/id:000370,src:000000,op:arith8,pos:72,val:-35,+cov
diff --git a/src/mint/afl-tests/id:000371,src:000000,op:arith8,pos:63,val:-28,+cov b/src/exchange/afl-tests/id:000371,src:000000,op:arith8,pos:63,val:-28,+cov
index 24439695b..24439695b 100644
--- a/src/mint/afl-tests/id:000371,src:000000,op:arith8,pos:63,val:-28,+cov
+++ b/src/exchange/afl-tests/id:000371,src:000000,op:arith8,pos:63,val:-28,+cov
diff --git a/src/mint/afl-tests/id:000371,src:000000,op:arith8,pos:74,val:+5,+cov b/src/exchange/afl-tests/id:000371,src:000000,op:arith8,pos:74,val:+5,+cov
index 121077e6d..121077e6d 100644
--- a/src/mint/afl-tests/id:000371,src:000000,op:arith8,pos:74,val:+5,+cov
+++ b/src/exchange/afl-tests/id:000371,src:000000,op:arith8,pos:74,val:+5,+cov
diff --git a/src/mint/afl-tests/id:000372,src:000000,op:arith8,pos:64,val:-5,+cov b/src/exchange/afl-tests/id:000372,src:000000,op:arith8,pos:64,val:-5,+cov
index 36f40fe69..36f40fe69 100644
--- a/src/mint/afl-tests/id:000372,src:000000,op:arith8,pos:64,val:-5,+cov
+++ b/src/exchange/afl-tests/id:000372,src:000000,op:arith8,pos:64,val:-5,+cov
diff --git a/src/mint/afl-tests/id:000372,src:000000,op:arith8,pos:75,val:-23,+cov b/src/exchange/afl-tests/id:000372,src:000000,op:arith8,pos:75,val:-23,+cov
index c9c888cf1..c9c888cf1 100644
--- a/src/mint/afl-tests/id:000372,src:000000,op:arith8,pos:75,val:-23,+cov
+++ b/src/exchange/afl-tests/id:000372,src:000000,op:arith8,pos:75,val:-23,+cov
diff --git a/src/mint/afl-tests/id:000373,src:000000,op:arith8,pos:64,val:-13,+cov b/src/exchange/afl-tests/id:000373,src:000000,op:arith8,pos:64,val:-13,+cov
index c079cc3f2..c079cc3f2 100644
--- a/src/mint/afl-tests/id:000373,src:000000,op:arith8,pos:64,val:-13,+cov
+++ b/src/exchange/afl-tests/id:000373,src:000000,op:arith8,pos:64,val:-13,+cov
diff --git a/src/mint/afl-tests/id:000373,src:000000,op:arith8,pos:75,val:+28,+cov b/src/exchange/afl-tests/id:000373,src:000000,op:arith8,pos:75,val:+28,+cov
index caaa0d4e2..caaa0d4e2 100644
--- a/src/mint/afl-tests/id:000373,src:000000,op:arith8,pos:75,val:+28,+cov
+++ b/src/exchange/afl-tests/id:000373,src:000000,op:arith8,pos:75,val:+28,+cov
diff --git a/src/mint/afl-tests/id:000374,src:000000,op:arith8,pos:64,val:-18,+cov b/src/exchange/afl-tests/id:000374,src:000000,op:arith8,pos:64,val:-18,+cov
index 40fd0b4fc..40fd0b4fc 100644
--- a/src/mint/afl-tests/id:000374,src:000000,op:arith8,pos:64,val:-18,+cov
+++ b/src/exchange/afl-tests/id:000374,src:000000,op:arith8,pos:64,val:-18,+cov
diff --git a/src/mint/afl-tests/id:000374,src:000000,op:arith8,pos:76,val:-5,+cov b/src/exchange/afl-tests/id:000374,src:000000,op:arith8,pos:76,val:-5,+cov
index 574206184..574206184 100644
--- a/src/mint/afl-tests/id:000374,src:000000,op:arith8,pos:76,val:-5,+cov
+++ b/src/exchange/afl-tests/id:000374,src:000000,op:arith8,pos:76,val:-5,+cov
diff --git a/src/mint/afl-tests/id:000375,src:000000,op:arith8,pos:64,val:-35,+cov b/src/exchange/afl-tests/id:000375,src:000000,op:arith8,pos:64,val:-35,+cov
index d1b6f7973..d1b6f7973 100644
--- a/src/mint/afl-tests/id:000375,src:000000,op:arith8,pos:64,val:-35,+cov
+++ b/src/exchange/afl-tests/id:000375,src:000000,op:arith8,pos:64,val:-35,+cov
diff --git a/src/mint/afl-tests/id:000375,src:000000,op:arith8,pos:76,val:-20,+cov b/src/exchange/afl-tests/id:000375,src:000000,op:arith8,pos:76,val:-20,+cov
index 7869112f2..7869112f2 100644
--- a/src/mint/afl-tests/id:000375,src:000000,op:arith8,pos:76,val:-20,+cov
+++ b/src/exchange/afl-tests/id:000375,src:000000,op:arith8,pos:76,val:-20,+cov
diff --git a/src/mint/afl-tests/id:000376,src:000000,op:arith8,pos:65,val:-27,+cov b/src/exchange/afl-tests/id:000376,src:000000,op:arith8,pos:65,val:-27,+cov
index 58a2799bd..58a2799bd 100644
--- a/src/mint/afl-tests/id:000376,src:000000,op:arith8,pos:65,val:-27,+cov
+++ b/src/exchange/afl-tests/id:000376,src:000000,op:arith8,pos:65,val:-27,+cov
diff --git a/src/mint/afl-tests/id:000376,src:000000,op:arith8,pos:77,val:-5,+cov b/src/exchange/afl-tests/id:000376,src:000000,op:arith8,pos:77,val:-5,+cov
index 280458e91..280458e91 100644
--- a/src/mint/afl-tests/id:000376,src:000000,op:arith8,pos:77,val:-5,+cov
+++ b/src/exchange/afl-tests/id:000376,src:000000,op:arith8,pos:77,val:-5,+cov
diff --git a/src/mint/afl-tests/id:000377,src:000000,op:arith8,pos:65,val:+29,+cov b/src/exchange/afl-tests/id:000377,src:000000,op:arith8,pos:65,val:+29,+cov
index 9ac6164de..9ac6164de 100644
--- a/src/mint/afl-tests/id:000377,src:000000,op:arith8,pos:65,val:+29,+cov
+++ b/src/exchange/afl-tests/id:000377,src:000000,op:arith8,pos:65,val:+29,+cov
diff --git a/src/mint/afl-tests/id:000377,src:000000,op:arith8,pos:77,val:+25,+cov b/src/exchange/afl-tests/id:000377,src:000000,op:arith8,pos:77,val:+25,+cov
index d10217b1a..d10217b1a 100644
--- a/src/mint/afl-tests/id:000377,src:000000,op:arith8,pos:77,val:+25,+cov
+++ b/src/exchange/afl-tests/id:000377,src:000000,op:arith8,pos:77,val:+25,+cov
diff --git a/src/mint/afl-tests/id:000378,src:000000,op:arith8,pos:66,val:-20,+cov b/src/exchange/afl-tests/id:000378,src:000000,op:arith8,pos:66,val:-20,+cov
index e661db8f9..e661db8f9 100644
--- a/src/mint/afl-tests/id:000378,src:000000,op:arith8,pos:66,val:-20,+cov
+++ b/src/exchange/afl-tests/id:000378,src:000000,op:arith8,pos:66,val:-20,+cov
diff --git a/src/mint/afl-tests/id:000378,src:000000,op:arith8,pos:80,val:+20,+cov b/src/exchange/afl-tests/id:000378,src:000000,op:arith8,pos:80,val:+20,+cov
index e4d53d47d..e4d53d47d 100644
--- a/src/mint/afl-tests/id:000378,src:000000,op:arith8,pos:80,val:+20,+cov
+++ b/src/exchange/afl-tests/id:000378,src:000000,op:arith8,pos:80,val:+20,+cov
diff --git a/src/mint/afl-tests/id:000379,src:000000,op:arith8,pos:66,val:+28,+cov b/src/exchange/afl-tests/id:000379,src:000000,op:arith8,pos:66,val:+28,+cov
index 5705e3539..5705e3539 100644
--- a/src/mint/afl-tests/id:000379,src:000000,op:arith8,pos:66,val:+28,+cov
+++ b/src/exchange/afl-tests/id:000379,src:000000,op:arith8,pos:66,val:+28,+cov
diff --git a/src/mint/afl-tests/id:000379,src:000000,op:arith8,pos:81,val:+20,+cov b/src/exchange/afl-tests/id:000379,src:000000,op:arith8,pos:81,val:+20,+cov
index 4d38460f0..4d38460f0 100644
--- a/src/mint/afl-tests/id:000379,src:000000,op:arith8,pos:81,val:+20,+cov
+++ b/src/exchange/afl-tests/id:000379,src:000000,op:arith8,pos:81,val:+20,+cov
diff --git a/src/mint/afl-tests/id:000380,src:000000,op:arith8,pos:66,val:-31,+cov b/src/exchange/afl-tests/id:000380,src:000000,op:arith8,pos:66,val:-31,+cov
index eb15fcf58..eb15fcf58 100644
--- a/src/mint/afl-tests/id:000380,src:000000,op:arith8,pos:66,val:-31,+cov
+++ b/src/exchange/afl-tests/id:000380,src:000000,op:arith8,pos:66,val:-31,+cov
diff --git a/src/mint/afl-tests/id:000380,src:000000,op:arith8,pos:82,val:-5,+cov b/src/exchange/afl-tests/id:000380,src:000000,op:arith8,pos:82,val:-5,+cov
index bc3c6f6f8..bc3c6f6f8 100644
--- a/src/mint/afl-tests/id:000380,src:000000,op:arith8,pos:82,val:-5,+cov
+++ b/src/exchange/afl-tests/id:000380,src:000000,op:arith8,pos:82,val:-5,+cov
diff --git a/src/mint/afl-tests/id:000381,src:000000,op:arith8,pos:67,val:-9 b/src/exchange/afl-tests/id:000381,src:000000,op:arith8,pos:67,val:-9
index 342b2c758..342b2c758 100644
--- a/src/mint/afl-tests/id:000381,src:000000,op:arith8,pos:67,val:-9
+++ b/src/exchange/afl-tests/id:000381,src:000000,op:arith8,pos:67,val:-9
diff --git a/src/mint/afl-tests/id:000381,src:000000,op:arith8,pos:83,val:-18,+cov b/src/exchange/afl-tests/id:000381,src:000000,op:arith8,pos:83,val:-18,+cov
index a51a07c12..a51a07c12 100644
--- a/src/mint/afl-tests/id:000381,src:000000,op:arith8,pos:83,val:-18,+cov
+++ b/src/exchange/afl-tests/id:000381,src:000000,op:arith8,pos:83,val:-18,+cov
diff --git a/src/mint/afl-tests/id:000382,src:000000,op:arith8,pos:67,val:+10,+cov b/src/exchange/afl-tests/id:000382,src:000000,op:arith8,pos:67,val:+10,+cov
index 5fb3a2c6e..5fb3a2c6e 100644
--- a/src/mint/afl-tests/id:000382,src:000000,op:arith8,pos:67,val:+10,+cov
+++ b/src/exchange/afl-tests/id:000382,src:000000,op:arith8,pos:67,val:+10,+cov
diff --git a/src/mint/afl-tests/id:000382,src:000000,op:arith8,pos:84,val:+10,+cov b/src/exchange/afl-tests/id:000382,src:000000,op:arith8,pos:84,val:+10,+cov
index 78f2e3e14..78f2e3e14 100644
--- a/src/mint/afl-tests/id:000382,src:000000,op:arith8,pos:84,val:+10,+cov
+++ b/src/exchange/afl-tests/id:000382,src:000000,op:arith8,pos:84,val:+10,+cov
diff --git a/src/mint/afl-tests/id:000383,src:000000,op:arith8,pos:67,val:-15,+cov b/src/exchange/afl-tests/id:000383,src:000000,op:arith8,pos:67,val:-15,+cov
index e5c3f5e39..e5c3f5e39 100644
--- a/src/mint/afl-tests/id:000383,src:000000,op:arith8,pos:67,val:-15,+cov
+++ b/src/exchange/afl-tests/id:000383,src:000000,op:arith8,pos:67,val:-15,+cov
diff --git a/src/mint/afl-tests/id:000383,src:000000,op:arith8,pos:84,val:-30,+cov b/src/exchange/afl-tests/id:000383,src:000000,op:arith8,pos:84,val:-30,+cov
index db1d90cc1..db1d90cc1 100644
--- a/src/mint/afl-tests/id:000383,src:000000,op:arith8,pos:84,val:-30,+cov
+++ b/src/exchange/afl-tests/id:000383,src:000000,op:arith8,pos:84,val:-30,+cov
diff --git a/src/mint/afl-tests/id:000384,src:000000,op:arith8,pos:67,val:-35 b/src/exchange/afl-tests/id:000384,src:000000,op:arith8,pos:67,val:-35
index d212fb451..d212fb451 100644
--- a/src/mint/afl-tests/id:000384,src:000000,op:arith8,pos:67,val:-35
+++ b/src/exchange/afl-tests/id:000384,src:000000,op:arith8,pos:67,val:-35
diff --git a/src/mint/afl-tests/id:000384,src:000000,op:arith8,pos:84,val:+34,+cov b/src/exchange/afl-tests/id:000384,src:000000,op:arith8,pos:84,val:+34,+cov
index 1d7e43e71..1d7e43e71 100644
--- a/src/mint/afl-tests/id:000384,src:000000,op:arith8,pos:84,val:+34,+cov
+++ b/src/exchange/afl-tests/id:000384,src:000000,op:arith8,pos:84,val:+34,+cov
diff --git a/src/mint/afl-tests/id:000385,src:000000,op:arith8,pos:68,val:+32,+cov b/src/exchange/afl-tests/id:000385,src:000000,op:arith8,pos:68,val:+32,+cov
index a931c55d4..a931c55d4 100644
--- a/src/mint/afl-tests/id:000385,src:000000,op:arith8,pos:68,val:+32,+cov
+++ b/src/exchange/afl-tests/id:000385,src:000000,op:arith8,pos:68,val:+32,+cov
diff --git a/src/mint/afl-tests/id:000385,src:000000,op:arith8,pos:86,val:-9,+cov b/src/exchange/afl-tests/id:000385,src:000000,op:arith8,pos:86,val:-9,+cov
index bc5b8fe4d..bc5b8fe4d 100644
--- a/src/mint/afl-tests/id:000385,src:000000,op:arith8,pos:86,val:-9,+cov
+++ b/src/exchange/afl-tests/id:000385,src:000000,op:arith8,pos:86,val:-9,+cov
diff --git a/src/mint/afl-tests/id:000386,src:000000,op:arith8,pos:69,val:+14,+cov b/src/exchange/afl-tests/id:000386,src:000000,op:arith8,pos:69,val:+14,+cov
index 55a2fc126..55a2fc126 100644
--- a/src/mint/afl-tests/id:000386,src:000000,op:arith8,pos:69,val:+14,+cov
+++ b/src/exchange/afl-tests/id:000386,src:000000,op:arith8,pos:69,val:+14,+cov
diff --git a/src/mint/afl-tests/id:000386,src:000000,op:arith8,pos:86,val:-19,+cov b/src/exchange/afl-tests/id:000386,src:000000,op:arith8,pos:86,val:-19,+cov
index 96292d482..96292d482 100644
--- a/src/mint/afl-tests/id:000386,src:000000,op:arith8,pos:86,val:-19,+cov
+++ b/src/exchange/afl-tests/id:000386,src:000000,op:arith8,pos:86,val:-19,+cov
diff --git a/src/mint/afl-tests/id:000387,src:000000,op:arith8,pos:70,val:-21,+cov b/src/exchange/afl-tests/id:000387,src:000000,op:arith8,pos:70,val:-21,+cov
index 7632c9a41..7632c9a41 100644
--- a/src/mint/afl-tests/id:000387,src:000000,op:arith8,pos:70,val:-21,+cov
+++ b/src/exchange/afl-tests/id:000387,src:000000,op:arith8,pos:70,val:-21,+cov
diff --git a/src/mint/afl-tests/id:000387,src:000000,op:arith8,pos:87,val:+10,+cov b/src/exchange/afl-tests/id:000387,src:000000,op:arith8,pos:87,val:+10,+cov
index b421ad8b3..b421ad8b3 100644
--- a/src/mint/afl-tests/id:000387,src:000000,op:arith8,pos:87,val:+10,+cov
+++ b/src/exchange/afl-tests/id:000387,src:000000,op:arith8,pos:87,val:+10,+cov
diff --git a/src/mint/afl-tests/id:000388,src:000000,op:arith8,pos:71,val:+3 b/src/exchange/afl-tests/id:000388,src:000000,op:arith8,pos:71,val:+3
index 5d81f8098..5d81f8098 100644
--- a/src/mint/afl-tests/id:000388,src:000000,op:arith8,pos:71,val:+3
+++ b/src/exchange/afl-tests/id:000388,src:000000,op:arith8,pos:71,val:+3
diff --git a/src/mint/afl-tests/id:000388,src:000000,op:arith8,pos:87,val:+15,+cov b/src/exchange/afl-tests/id:000388,src:000000,op:arith8,pos:87,val:+15,+cov
index 2ada1fd95..2ada1fd95 100644
--- a/src/mint/afl-tests/id:000388,src:000000,op:arith8,pos:87,val:+15,+cov
+++ b/src/exchange/afl-tests/id:000388,src:000000,op:arith8,pos:87,val:+15,+cov
diff --git a/src/mint/afl-tests/id:000389,src:000000,op:arith8,pos:72,val:-7,+cov b/src/exchange/afl-tests/id:000389,src:000000,op:arith8,pos:72,val:-7,+cov
index fb8e5878e..fb8e5878e 100644
--- a/src/mint/afl-tests/id:000389,src:000000,op:arith8,pos:72,val:-7,+cov
+++ b/src/exchange/afl-tests/id:000389,src:000000,op:arith8,pos:72,val:-7,+cov
diff --git a/src/mint/afl-tests/id:000389,src:000000,op:arith8,pos:87,val:-26,+cov b/src/exchange/afl-tests/id:000389,src:000000,op:arith8,pos:87,val:-26,+cov
index d0f444dfe..d0f444dfe 100644
--- a/src/mint/afl-tests/id:000389,src:000000,op:arith8,pos:87,val:-26,+cov
+++ b/src/exchange/afl-tests/id:000389,src:000000,op:arith8,pos:87,val:-26,+cov
diff --git a/src/mint/afl-tests/id:000390,src:000000,op:arith8,pos:72,val:+30,+cov b/src/exchange/afl-tests/id:000390,src:000000,op:arith8,pos:72,val:+30,+cov
index 1c8dcf9a3..1c8dcf9a3 100644
--- a/src/mint/afl-tests/id:000390,src:000000,op:arith8,pos:72,val:+30,+cov
+++ b/src/exchange/afl-tests/id:000390,src:000000,op:arith8,pos:72,val:+30,+cov
diff --git a/src/mint/afl-tests/id:000390,src:000000,op:arith8,pos:88,val:+9,+cov b/src/exchange/afl-tests/id:000390,src:000000,op:arith8,pos:88,val:+9,+cov
index 44d664f2f..44d664f2f 100644
--- a/src/mint/afl-tests/id:000390,src:000000,op:arith8,pos:88,val:+9,+cov
+++ b/src/exchange/afl-tests/id:000390,src:000000,op:arith8,pos:88,val:+9,+cov
diff --git a/src/mint/afl-tests/id:000391,src:000000,op:arith8,pos:73,val:-13,+cov b/src/exchange/afl-tests/id:000391,src:000000,op:arith8,pos:73,val:-13,+cov
index 592e62300..592e62300 100644
--- a/src/mint/afl-tests/id:000391,src:000000,op:arith8,pos:73,val:-13,+cov
+++ b/src/exchange/afl-tests/id:000391,src:000000,op:arith8,pos:73,val:-13,+cov
diff --git a/src/mint/afl-tests/id:000391,src:000000,op:arith8,pos:88,val:+25 b/src/exchange/afl-tests/id:000391,src:000000,op:arith8,pos:88,val:+25
index 1e434b113..1e434b113 100644
--- a/src/mint/afl-tests/id:000391,src:000000,op:arith8,pos:88,val:+25
+++ b/src/exchange/afl-tests/id:000391,src:000000,op:arith8,pos:88,val:+25
diff --git a/src/mint/afl-tests/id:000392,src:000000,op:arith8,pos:73,val:-29,+cov b/src/exchange/afl-tests/id:000392,src:000000,op:arith8,pos:73,val:-29,+cov
index ea51aae54..ea51aae54 100644
--- a/src/mint/afl-tests/id:000392,src:000000,op:arith8,pos:73,val:-29,+cov
+++ b/src/exchange/afl-tests/id:000392,src:000000,op:arith8,pos:73,val:-29,+cov
diff --git a/src/mint/afl-tests/id:000392,src:000000,op:arith8,pos:88,val:+26,+cov b/src/exchange/afl-tests/id:000392,src:000000,op:arith8,pos:88,val:+26,+cov
index f6ae2f90b..f6ae2f90b 100644
--- a/src/mint/afl-tests/id:000392,src:000000,op:arith8,pos:88,val:+26,+cov
+++ b/src/exchange/afl-tests/id:000392,src:000000,op:arith8,pos:88,val:+26,+cov
diff --git a/src/mint/afl-tests/id:000393,src:000000,op:arith8,pos:73,val:-35,+cov b/src/exchange/afl-tests/id:000393,src:000000,op:arith8,pos:73,val:-35,+cov
index d0cdc32e8..d0cdc32e8 100644
--- a/src/mint/afl-tests/id:000393,src:000000,op:arith8,pos:73,val:-35,+cov
+++ b/src/exchange/afl-tests/id:000393,src:000000,op:arith8,pos:73,val:-35,+cov
diff --git a/src/mint/afl-tests/id:000393,src:000000,op:arith8,pos:90,val:-33,+cov b/src/exchange/afl-tests/id:000393,src:000000,op:arith8,pos:90,val:-33,+cov
index 770ac9f7f..770ac9f7f 100644
--- a/src/mint/afl-tests/id:000393,src:000000,op:arith8,pos:90,val:-33,+cov
+++ b/src/exchange/afl-tests/id:000393,src:000000,op:arith8,pos:90,val:-33,+cov
diff --git a/src/mint/afl-tests/id:000394,src:000000,op:arith8,pos:75,val:-20,+cov b/src/exchange/afl-tests/id:000394,src:000000,op:arith8,pos:75,val:-20,+cov
index 3547dc013..3547dc013 100644
--- a/src/mint/afl-tests/id:000394,src:000000,op:arith8,pos:75,val:-20,+cov
+++ b/src/exchange/afl-tests/id:000394,src:000000,op:arith8,pos:75,val:-20,+cov
diff --git a/src/mint/afl-tests/id:000394,src:000000,op:arith8,pos:91,val:-14,+cov b/src/exchange/afl-tests/id:000394,src:000000,op:arith8,pos:91,val:-14,+cov
index 906eb83cc..906eb83cc 100644
--- a/src/mint/afl-tests/id:000394,src:000000,op:arith8,pos:91,val:-14,+cov
+++ b/src/exchange/afl-tests/id:000394,src:000000,op:arith8,pos:91,val:-14,+cov
diff --git a/src/mint/afl-tests/id:000395,src:000000,op:arith8,pos:76,val:+21,+cov b/src/exchange/afl-tests/id:000395,src:000000,op:arith8,pos:76,val:+21,+cov
index 39774c970..39774c970 100644
--- a/src/mint/afl-tests/id:000395,src:000000,op:arith8,pos:76,val:+21,+cov
+++ b/src/exchange/afl-tests/id:000395,src:000000,op:arith8,pos:76,val:+21,+cov
diff --git a/src/mint/afl-tests/id:000395,src:000000,op:arith8,pos:91,val:+24 b/src/exchange/afl-tests/id:000395,src:000000,op:arith8,pos:91,val:+24
index bdf7967b5..bdf7967b5 100644
--- a/src/mint/afl-tests/id:000395,src:000000,op:arith8,pos:91,val:+24
+++ b/src/exchange/afl-tests/id:000395,src:000000,op:arith8,pos:91,val:+24
diff --git a/src/mint/afl-tests/id:000396,src:000000,op:arith8,pos:77,val:+24,+cov b/src/exchange/afl-tests/id:000396,src:000000,op:arith8,pos:77,val:+24,+cov
index e6f484add..e6f484add 100644
--- a/src/mint/afl-tests/id:000396,src:000000,op:arith8,pos:77,val:+24,+cov
+++ b/src/exchange/afl-tests/id:000396,src:000000,op:arith8,pos:77,val:+24,+cov
diff --git a/src/mint/afl-tests/id:000396,src:000000,op:arith8,pos:92,val:+11,+cov b/src/exchange/afl-tests/id:000396,src:000000,op:arith8,pos:92,val:+11,+cov
index 86b1ac8a0..86b1ac8a0 100644
--- a/src/mint/afl-tests/id:000396,src:000000,op:arith8,pos:92,val:+11,+cov
+++ b/src/exchange/afl-tests/id:000396,src:000000,op:arith8,pos:92,val:+11,+cov
diff --git a/src/mint/afl-tests/id:000397,src:000000,op:arith8,pos:80,val:-11,+cov b/src/exchange/afl-tests/id:000397,src:000000,op:arith8,pos:80,val:-11,+cov
index edc039186..edc039186 100644
--- a/src/mint/afl-tests/id:000397,src:000000,op:arith8,pos:80,val:-11,+cov
+++ b/src/exchange/afl-tests/id:000397,src:000000,op:arith8,pos:80,val:-11,+cov
diff --git a/src/mint/afl-tests/id:000397,src:000000,op:arith8,pos:92,val:-23,+cov b/src/exchange/afl-tests/id:000397,src:000000,op:arith8,pos:92,val:-23,+cov
index 58e65acc0..58e65acc0 100644
--- a/src/mint/afl-tests/id:000397,src:000000,op:arith8,pos:92,val:-23,+cov
+++ b/src/exchange/afl-tests/id:000397,src:000000,op:arith8,pos:92,val:-23,+cov
diff --git a/src/mint/afl-tests/id:000398,src:000000,op:arith8,pos:80,val:+18,+cov b/src/exchange/afl-tests/id:000398,src:000000,op:arith8,pos:80,val:+18,+cov
index 39a16ed4c..39a16ed4c 100644
--- a/src/mint/afl-tests/id:000398,src:000000,op:arith8,pos:80,val:+18,+cov
+++ b/src/exchange/afl-tests/id:000398,src:000000,op:arith8,pos:80,val:+18,+cov
diff --git a/src/mint/afl-tests/id:000398,src:000000,op:arith8,pos:93,val:+19,+cov b/src/exchange/afl-tests/id:000398,src:000000,op:arith8,pos:93,val:+19,+cov
index 82af6cc6d..82af6cc6d 100644
--- a/src/mint/afl-tests/id:000398,src:000000,op:arith8,pos:93,val:+19,+cov
+++ b/src/exchange/afl-tests/id:000398,src:000000,op:arith8,pos:93,val:+19,+cov
diff --git a/src/mint/afl-tests/id:000399,src:000000,op:arith8,pos:81,val:+22,+cov b/src/exchange/afl-tests/id:000399,src:000000,op:arith8,pos:81,val:+22,+cov
index f2ab9f29e..f2ab9f29e 100644
--- a/src/mint/afl-tests/id:000399,src:000000,op:arith8,pos:81,val:+22,+cov
+++ b/src/exchange/afl-tests/id:000399,src:000000,op:arith8,pos:81,val:+22,+cov
diff --git a/src/mint/afl-tests/id:000399,src:000000,op:arith8,pos:93,val:-25,+cov b/src/exchange/afl-tests/id:000399,src:000000,op:arith8,pos:93,val:-25,+cov
index 0dd4c3aac..0dd4c3aac 100644
--- a/src/mint/afl-tests/id:000399,src:000000,op:arith8,pos:93,val:-25,+cov
+++ b/src/exchange/afl-tests/id:000399,src:000000,op:arith8,pos:93,val:-25,+cov
diff --git a/src/mint/afl-tests/id:000400,src:000000,op:arith8,pos:81,val:-30,+cov b/src/exchange/afl-tests/id:000400,src:000000,op:arith8,pos:81,val:-30,+cov
index 6d1fdc6c9..6d1fdc6c9 100644
--- a/src/mint/afl-tests/id:000400,src:000000,op:arith8,pos:81,val:-30,+cov
+++ b/src/exchange/afl-tests/id:000400,src:000000,op:arith8,pos:81,val:-30,+cov
diff --git a/src/mint/afl-tests/id:000400,src:000000,op:arith8,pos:93,val:+35,+cov b/src/exchange/afl-tests/id:000400,src:000000,op:arith8,pos:93,val:+35,+cov
index e854f6e80..e854f6e80 100644
--- a/src/mint/afl-tests/id:000400,src:000000,op:arith8,pos:93,val:+35,+cov
+++ b/src/exchange/afl-tests/id:000400,src:000000,op:arith8,pos:93,val:+35,+cov
diff --git a/src/mint/afl-tests/id:000401,src:000000,op:arith8,pos:83,val:-1 b/src/exchange/afl-tests/id:000401,src:000000,op:arith8,pos:83,val:-1
index 6d0f8547d..6d0f8547d 100644
--- a/src/mint/afl-tests/id:000401,src:000000,op:arith8,pos:83,val:-1
+++ b/src/exchange/afl-tests/id:000401,src:000000,op:arith8,pos:83,val:-1
diff --git a/src/mint/afl-tests/id:000401,src:000000,op:arith8,pos:96,val:-5,+cov b/src/exchange/afl-tests/id:000401,src:000000,op:arith8,pos:96,val:-5,+cov
index 9ae7f0c3e..9ae7f0c3e 100644
--- a/src/mint/afl-tests/id:000401,src:000000,op:arith8,pos:96,val:-5,+cov
+++ b/src/exchange/afl-tests/id:000401,src:000000,op:arith8,pos:96,val:-5,+cov
diff --git a/src/mint/afl-tests/id:000402,src:000000,op:arith8,pos:83,val:-22,+cov b/src/exchange/afl-tests/id:000402,src:000000,op:arith8,pos:83,val:-22,+cov
index cbfebffe4..cbfebffe4 100644
--- a/src/mint/afl-tests/id:000402,src:000000,op:arith8,pos:83,val:-22,+cov
+++ b/src/exchange/afl-tests/id:000402,src:000000,op:arith8,pos:83,val:-22,+cov
diff --git a/src/mint/afl-tests/id:000402,src:000000,op:arith8,pos:96,val:+32,+cov b/src/exchange/afl-tests/id:000402,src:000000,op:arith8,pos:96,val:+32,+cov
index de122f609..de122f609 100644
--- a/src/mint/afl-tests/id:000402,src:000000,op:arith8,pos:96,val:+32,+cov
+++ b/src/exchange/afl-tests/id:000402,src:000000,op:arith8,pos:96,val:+32,+cov
diff --git a/src/mint/afl-tests/id:000403,src:000000,op:arith8,pos:83,val:+35,+cov b/src/exchange/afl-tests/id:000403,src:000000,op:arith8,pos:83,val:+35,+cov
index 6cbad71ae..6cbad71ae 100644
--- a/src/mint/afl-tests/id:000403,src:000000,op:arith8,pos:83,val:+35,+cov
+++ b/src/exchange/afl-tests/id:000403,src:000000,op:arith8,pos:83,val:+35,+cov
diff --git a/src/mint/afl-tests/id:000403,src:000000,op:arith8,pos:96,val:-34,+cov b/src/exchange/afl-tests/id:000403,src:000000,op:arith8,pos:96,val:-34,+cov
index 682321985..682321985 100644
--- a/src/mint/afl-tests/id:000403,src:000000,op:arith8,pos:96,val:-34,+cov
+++ b/src/exchange/afl-tests/id:000403,src:000000,op:arith8,pos:96,val:-34,+cov
diff --git a/src/mint/afl-tests/id:000404,src:000000,op:arith8,pos:84,val:+7,+cov b/src/exchange/afl-tests/id:000404,src:000000,op:arith8,pos:84,val:+7,+cov
index 9eec2bca0..9eec2bca0 100644
--- a/src/mint/afl-tests/id:000404,src:000000,op:arith8,pos:84,val:+7,+cov
+++ b/src/exchange/afl-tests/id:000404,src:000000,op:arith8,pos:84,val:+7,+cov
diff --git a/src/mint/afl-tests/id:000404,src:000000,op:arith8,pos:98,val:-34,+cov b/src/exchange/afl-tests/id:000404,src:000000,op:arith8,pos:98,val:-34,+cov
index 426033a42..426033a42 100644
--- a/src/mint/afl-tests/id:000404,src:000000,op:arith8,pos:98,val:-34,+cov
+++ b/src/exchange/afl-tests/id:000404,src:000000,op:arith8,pos:98,val:-34,+cov
diff --git a/src/mint/afl-tests/id:000405,src:000000,op:arith8,pos:84,val:+31,+cov b/src/exchange/afl-tests/id:000405,src:000000,op:arith8,pos:84,val:+31,+cov
index 6c4fe17dd..6c4fe17dd 100644
--- a/src/mint/afl-tests/id:000405,src:000000,op:arith8,pos:84,val:+31,+cov
+++ b/src/exchange/afl-tests/id:000405,src:000000,op:arith8,pos:84,val:+31,+cov
diff --git a/src/mint/afl-tests/id:000405,src:000000,op:arith8,pos:98,val:-35 b/src/exchange/afl-tests/id:000405,src:000000,op:arith8,pos:98,val:-35
index 94bdaa4d0..94bdaa4d0 100644
--- a/src/mint/afl-tests/id:000405,src:000000,op:arith8,pos:98,val:-35
+++ b/src/exchange/afl-tests/id:000405,src:000000,op:arith8,pos:98,val:-35
diff --git a/src/mint/afl-tests/id:000406,src:000000,op:arith8,pos:113,val:-19 b/src/exchange/afl-tests/id:000406,src:000000,op:arith8,pos:113,val:-19
index cc3fad352..cc3fad352 100644
--- a/src/mint/afl-tests/id:000406,src:000000,op:arith8,pos:113,val:-19
+++ b/src/exchange/afl-tests/id:000406,src:000000,op:arith8,pos:113,val:-19
diff --git a/src/mint/afl-tests/id:000406,src:000000,op:arith8,pos:86,val:-11,+cov b/src/exchange/afl-tests/id:000406,src:000000,op:arith8,pos:86,val:-11,+cov
index a65305252..a65305252 100644
--- a/src/mint/afl-tests/id:000406,src:000000,op:arith8,pos:86,val:-11,+cov
+++ b/src/exchange/afl-tests/id:000406,src:000000,op:arith8,pos:86,val:-11,+cov
diff --git a/src/mint/afl-tests/id:000407,src:000000,op:arith8,pos:113,val:-22 b/src/exchange/afl-tests/id:000407,src:000000,op:arith8,pos:113,val:-22
index d5822f356..d5822f356 100644
--- a/src/mint/afl-tests/id:000407,src:000000,op:arith8,pos:113,val:-22
+++ b/src/exchange/afl-tests/id:000407,src:000000,op:arith8,pos:113,val:-22
diff --git a/src/mint/afl-tests/id:000407,src:000000,op:arith8,pos:86,val:+22,+cov b/src/exchange/afl-tests/id:000407,src:000000,op:arith8,pos:86,val:+22,+cov
index 0019d1140..0019d1140 100644
--- a/src/mint/afl-tests/id:000407,src:000000,op:arith8,pos:86,val:+22,+cov
+++ b/src/exchange/afl-tests/id:000407,src:000000,op:arith8,pos:86,val:+22,+cov
diff --git a/src/mint/afl-tests/id:000408,src:000000,op:arith8,pos:121,val:-13,+cov b/src/exchange/afl-tests/id:000408,src:000000,op:arith8,pos:121,val:-13,+cov
index 4eb7d6082..4eb7d6082 100644
--- a/src/mint/afl-tests/id:000408,src:000000,op:arith8,pos:121,val:-13,+cov
+++ b/src/exchange/afl-tests/id:000408,src:000000,op:arith8,pos:121,val:-13,+cov
diff --git a/src/mint/afl-tests/id:000408,src:000000,op:arith8,pos:86,val:-24 b/src/exchange/afl-tests/id:000408,src:000000,op:arith8,pos:86,val:-24
index 072983d1d..072983d1d 100644
--- a/src/mint/afl-tests/id:000408,src:000000,op:arith8,pos:86,val:-24
+++ b/src/exchange/afl-tests/id:000408,src:000000,op:arith8,pos:86,val:-24
diff --git a/src/mint/afl-tests/id:000409,src:000000,op:arith8,pos:135,val:+23,+cov b/src/exchange/afl-tests/id:000409,src:000000,op:arith8,pos:135,val:+23,+cov
index 151cc0aa2..151cc0aa2 100644
--- a/src/mint/afl-tests/id:000409,src:000000,op:arith8,pos:135,val:+23,+cov
+++ b/src/exchange/afl-tests/id:000409,src:000000,op:arith8,pos:135,val:+23,+cov
diff --git a/src/mint/afl-tests/id:000409,src:000000,op:arith8,pos:87,val:-2,+cov b/src/exchange/afl-tests/id:000409,src:000000,op:arith8,pos:87,val:-2,+cov
index 03614562b..03614562b 100644
--- a/src/mint/afl-tests/id:000409,src:000000,op:arith8,pos:87,val:-2,+cov
+++ b/src/exchange/afl-tests/id:000409,src:000000,op:arith8,pos:87,val:-2,+cov
diff --git a/src/mint/afl-tests/id:000410,src:000000,op:arith8,pos:136,val:-9,+cov b/src/exchange/afl-tests/id:000410,src:000000,op:arith8,pos:136,val:-9,+cov
index b5629267f..b5629267f 100644
--- a/src/mint/afl-tests/id:000410,src:000000,op:arith8,pos:136,val:-9,+cov
+++ b/src/exchange/afl-tests/id:000410,src:000000,op:arith8,pos:136,val:-9,+cov
diff --git a/src/mint/afl-tests/id:000410,src:000000,op:arith8,pos:87,val:+9,+cov b/src/exchange/afl-tests/id:000410,src:000000,op:arith8,pos:87,val:+9,+cov
index 0d50ae025..0d50ae025 100644
--- a/src/mint/afl-tests/id:000410,src:000000,op:arith8,pos:87,val:+9,+cov
+++ b/src/exchange/afl-tests/id:000410,src:000000,op:arith8,pos:87,val:+9,+cov
diff --git a/src/mint/afl-tests/id:000411,src:000000,op:arith8,pos:136,val:-21,+cov b/src/exchange/afl-tests/id:000411,src:000000,op:arith8,pos:136,val:-21,+cov
index c139840b0..c139840b0 100644
--- a/src/mint/afl-tests/id:000411,src:000000,op:arith8,pos:136,val:-21,+cov
+++ b/src/exchange/afl-tests/id:000411,src:000000,op:arith8,pos:136,val:-21,+cov
diff --git a/src/mint/afl-tests/id:000411,src:000000,op:arith8,pos:87,val:-15,+cov b/src/exchange/afl-tests/id:000411,src:000000,op:arith8,pos:87,val:-15,+cov
index aa4d902e2..aa4d902e2 100644
--- a/src/mint/afl-tests/id:000411,src:000000,op:arith8,pos:87,val:-15,+cov
+++ b/src/exchange/afl-tests/id:000411,src:000000,op:arith8,pos:87,val:-15,+cov
diff --git a/src/mint/afl-tests/id:000412,src:000000,op:arith8,pos:137,val:+8,+cov b/src/exchange/afl-tests/id:000412,src:000000,op:arith8,pos:137,val:+8,+cov
index 165c83f72..165c83f72 100644
--- a/src/mint/afl-tests/id:000412,src:000000,op:arith8,pos:137,val:+8,+cov
+++ b/src/exchange/afl-tests/id:000412,src:000000,op:arith8,pos:137,val:+8,+cov
diff --git a/src/mint/afl-tests/id:000412,src:000000,op:arith8,pos:87,val:-24,+cov b/src/exchange/afl-tests/id:000412,src:000000,op:arith8,pos:87,val:-24,+cov
index 7a4e13ce5..7a4e13ce5 100644
--- a/src/mint/afl-tests/id:000412,src:000000,op:arith8,pos:87,val:-24,+cov
+++ b/src/exchange/afl-tests/id:000412,src:000000,op:arith8,pos:87,val:-24,+cov
diff --git a/src/mint/afl-tests/id:000413,src:000000,op:arith8,pos:137,val:-11 b/src/exchange/afl-tests/id:000413,src:000000,op:arith8,pos:137,val:-11
index 35bf7ebc0..35bf7ebc0 100644
--- a/src/mint/afl-tests/id:000413,src:000000,op:arith8,pos:137,val:-11
+++ b/src/exchange/afl-tests/id:000413,src:000000,op:arith8,pos:137,val:-11
diff --git a/src/mint/afl-tests/id:000413,src:000000,op:arith8,pos:88,val:+30,+cov b/src/exchange/afl-tests/id:000413,src:000000,op:arith8,pos:88,val:+30,+cov
index 3864a91ce..3864a91ce 100644
--- a/src/mint/afl-tests/id:000413,src:000000,op:arith8,pos:88,val:+30,+cov
+++ b/src/exchange/afl-tests/id:000413,src:000000,op:arith8,pos:88,val:+30,+cov
diff --git a/src/mint/afl-tests/id:000414,src:000000,op:arith8,pos:137,val:-19,+cov b/src/exchange/afl-tests/id:000414,src:000000,op:arith8,pos:137,val:-19,+cov
index 43f1f126d..43f1f126d 100644
--- a/src/mint/afl-tests/id:000414,src:000000,op:arith8,pos:137,val:-19,+cov
+++ b/src/exchange/afl-tests/id:000414,src:000000,op:arith8,pos:137,val:-19,+cov
diff --git a/src/mint/afl-tests/id:000414,src:000000,op:arith8,pos:89,val:+29,+cov b/src/exchange/afl-tests/id:000414,src:000000,op:arith8,pos:89,val:+29,+cov
index e9b9b392c..e9b9b392c 100644
--- a/src/mint/afl-tests/id:000414,src:000000,op:arith8,pos:89,val:+29,+cov
+++ b/src/exchange/afl-tests/id:000414,src:000000,op:arith8,pos:89,val:+29,+cov
diff --git a/src/mint/afl-tests/id:000415,src:000000,op:arith8,pos:138,val:+3,+cov b/src/exchange/afl-tests/id:000415,src:000000,op:arith8,pos:138,val:+3,+cov
index c47b34658..c47b34658 100644
--- a/src/mint/afl-tests/id:000415,src:000000,op:arith8,pos:138,val:+3,+cov
+++ b/src/exchange/afl-tests/id:000415,src:000000,op:arith8,pos:138,val:+3,+cov
diff --git a/src/mint/afl-tests/id:000415,src:000000,op:arith8,pos:90,val:-21,+cov b/src/exchange/afl-tests/id:000415,src:000000,op:arith8,pos:90,val:-21,+cov
index cef95dabf..cef95dabf 100644
--- a/src/mint/afl-tests/id:000415,src:000000,op:arith8,pos:90,val:-21,+cov
+++ b/src/exchange/afl-tests/id:000415,src:000000,op:arith8,pos:90,val:-21,+cov
diff --git a/src/mint/afl-tests/id:000416,src:000000,op:arith8,pos:138,val:-12,+cov b/src/exchange/afl-tests/id:000416,src:000000,op:arith8,pos:138,val:-12,+cov
index 88d2411e9..88d2411e9 100644
--- a/src/mint/afl-tests/id:000416,src:000000,op:arith8,pos:138,val:-12,+cov
+++ b/src/exchange/afl-tests/id:000416,src:000000,op:arith8,pos:138,val:-12,+cov
diff --git a/src/mint/afl-tests/id:000416,src:000000,op:arith8,pos:91,val:+28,+cov b/src/exchange/afl-tests/id:000416,src:000000,op:arith8,pos:91,val:+28,+cov
index 20b530e66..20b530e66 100644
--- a/src/mint/afl-tests/id:000416,src:000000,op:arith8,pos:91,val:+28,+cov
+++ b/src/exchange/afl-tests/id:000416,src:000000,op:arith8,pos:91,val:+28,+cov
diff --git a/src/mint/afl-tests/id:000417,src:000000,op:arith8,pos:139,val:-10,+cov b/src/exchange/afl-tests/id:000417,src:000000,op:arith8,pos:139,val:-10,+cov
index cb7f6c812..cb7f6c812 100644
--- a/src/mint/afl-tests/id:000417,src:000000,op:arith8,pos:139,val:-10,+cov
+++ b/src/exchange/afl-tests/id:000417,src:000000,op:arith8,pos:139,val:-10,+cov
diff --git a/src/mint/afl-tests/id:000417,src:000000,op:arith8,pos:91,val:+34,+cov b/src/exchange/afl-tests/id:000417,src:000000,op:arith8,pos:91,val:+34,+cov
index 2714cce39..2714cce39 100644
--- a/src/mint/afl-tests/id:000417,src:000000,op:arith8,pos:91,val:+34,+cov
+++ b/src/exchange/afl-tests/id:000417,src:000000,op:arith8,pos:91,val:+34,+cov
diff --git a/src/mint/afl-tests/id:000418,src:000000,op:arith8,pos:139,val:-26,+cov b/src/exchange/afl-tests/id:000418,src:000000,op:arith8,pos:139,val:-26,+cov
index 8500eb30f..8500eb30f 100644
--- a/src/mint/afl-tests/id:000418,src:000000,op:arith8,pos:139,val:-26,+cov
+++ b/src/exchange/afl-tests/id:000418,src:000000,op:arith8,pos:139,val:-26,+cov
diff --git a/src/mint/afl-tests/id:000418,src:000000,op:arith8,pos:94,val:-23,+cov b/src/exchange/afl-tests/id:000418,src:000000,op:arith8,pos:94,val:-23,+cov
index e77f3268f..e77f3268f 100644
--- a/src/mint/afl-tests/id:000418,src:000000,op:arith8,pos:94,val:-23,+cov
+++ b/src/exchange/afl-tests/id:000418,src:000000,op:arith8,pos:94,val:-23,+cov
diff --git a/src/mint/afl-tests/id:000419,src:000000,op:arith8,pos:143,val:+21,+cov b/src/exchange/afl-tests/id:000419,src:000000,op:arith8,pos:143,val:+21,+cov
index 627b50a98..627b50a98 100644
--- a/src/mint/afl-tests/id:000419,src:000000,op:arith8,pos:143,val:+21,+cov
+++ b/src/exchange/afl-tests/id:000419,src:000000,op:arith8,pos:143,val:+21,+cov
diff --git a/src/mint/afl-tests/id:000419,src:000000,op:arith8,pos:95,val:+3,+cov b/src/exchange/afl-tests/id:000419,src:000000,op:arith8,pos:95,val:+3,+cov
index 718934f56..718934f56 100644
--- a/src/mint/afl-tests/id:000419,src:000000,op:arith8,pos:95,val:+3,+cov
+++ b/src/exchange/afl-tests/id:000419,src:000000,op:arith8,pos:95,val:+3,+cov
diff --git a/src/mint/afl-tests/id:000420,src:000000,op:arith8,pos:145,val:+15,+cov b/src/exchange/afl-tests/id:000420,src:000000,op:arith8,pos:145,val:+15,+cov
index 8fcfc0cd5..8fcfc0cd5 100644
--- a/src/mint/afl-tests/id:000420,src:000000,op:arith8,pos:145,val:+15,+cov
+++ b/src/exchange/afl-tests/id:000420,src:000000,op:arith8,pos:145,val:+15,+cov
diff --git a/src/mint/afl-tests/id:000420,src:000000,op:arith8,pos:95,val:-23,+cov b/src/exchange/afl-tests/id:000420,src:000000,op:arith8,pos:95,val:-23,+cov
index f7ca0f47c..f7ca0f47c 100644
--- a/src/mint/afl-tests/id:000420,src:000000,op:arith8,pos:95,val:-23,+cov
+++ b/src/exchange/afl-tests/id:000420,src:000000,op:arith8,pos:95,val:-23,+cov
diff --git a/src/mint/afl-tests/id:000421,src:000000,op:arith8,pos:146,val:-14,+cov b/src/exchange/afl-tests/id:000421,src:000000,op:arith8,pos:146,val:-14,+cov
index b84436fb6..b84436fb6 100644
--- a/src/mint/afl-tests/id:000421,src:000000,op:arith8,pos:146,val:-14,+cov
+++ b/src/exchange/afl-tests/id:000421,src:000000,op:arith8,pos:146,val:-14,+cov
diff --git a/src/mint/afl-tests/id:000421,src:000000,op:arith8,pos:95,val:+31,+cov b/src/exchange/afl-tests/id:000421,src:000000,op:arith8,pos:95,val:+31,+cov
index e1f56f79c..e1f56f79c 100644
--- a/src/mint/afl-tests/id:000421,src:000000,op:arith8,pos:95,val:+31,+cov
+++ b/src/exchange/afl-tests/id:000421,src:000000,op:arith8,pos:95,val:+31,+cov
diff --git a/src/mint/afl-tests/id:000422,src:000000,op:arith8,pos:148,val:+28,+cov b/src/exchange/afl-tests/id:000422,src:000000,op:arith8,pos:148,val:+28,+cov
index 9ca2a6194..9ca2a6194 100644
--- a/src/mint/afl-tests/id:000422,src:000000,op:arith8,pos:148,val:+28,+cov
+++ b/src/exchange/afl-tests/id:000422,src:000000,op:arith8,pos:148,val:+28,+cov
diff --git a/src/mint/afl-tests/id:000422,src:000000,op:arith8,pos:98,val:-35 b/src/exchange/afl-tests/id:000422,src:000000,op:arith8,pos:98,val:-35
index 94bdaa4d0..94bdaa4d0 100644
--- a/src/mint/afl-tests/id:000422,src:000000,op:arith8,pos:98,val:-35
+++ b/src/exchange/afl-tests/id:000422,src:000000,op:arith8,pos:98,val:-35
diff --git a/src/mint/afl-tests/id:000423,src:000000,op:arith8,pos:100,val:-33,+cov b/src/exchange/afl-tests/id:000423,src:000000,op:arith8,pos:100,val:-33,+cov
index db7378d99..db7378d99 100644
--- a/src/mint/afl-tests/id:000423,src:000000,op:arith8,pos:100,val:-33,+cov
+++ b/src/exchange/afl-tests/id:000423,src:000000,op:arith8,pos:100,val:-33,+cov
diff --git a/src/mint/afl-tests/id:000423,src:000000,op:arith8,pos:151,val:-35,+cov b/src/exchange/afl-tests/id:000423,src:000000,op:arith8,pos:151,val:-35,+cov
index 6306c04cb..6306c04cb 100644
--- a/src/mint/afl-tests/id:000423,src:000000,op:arith8,pos:151,val:-35,+cov
+++ b/src/exchange/afl-tests/id:000423,src:000000,op:arith8,pos:151,val:-35,+cov
diff --git a/src/mint/afl-tests/id:000424,src:000000,op:arith8,pos:113,val:-19 b/src/exchange/afl-tests/id:000424,src:000000,op:arith8,pos:113,val:-19
index cc3fad352..cc3fad352 100644
--- a/src/mint/afl-tests/id:000424,src:000000,op:arith8,pos:113,val:-19
+++ b/src/exchange/afl-tests/id:000424,src:000000,op:arith8,pos:113,val:-19
diff --git a/src/mint/afl-tests/id:000424,src:000000,op:arith8,pos:152,val:-12,+cov b/src/exchange/afl-tests/id:000424,src:000000,op:arith8,pos:152,val:-12,+cov
index 67774fb72..67774fb72 100644
--- a/src/mint/afl-tests/id:000424,src:000000,op:arith8,pos:152,val:-12,+cov
+++ b/src/exchange/afl-tests/id:000424,src:000000,op:arith8,pos:152,val:-12,+cov
diff --git a/src/mint/afl-tests/id:000425,src:000000,op:arith8,pos:113,val:-22 b/src/exchange/afl-tests/id:000425,src:000000,op:arith8,pos:113,val:-22
index d5822f356..d5822f356 100644
--- a/src/mint/afl-tests/id:000425,src:000000,op:arith8,pos:113,val:-22
+++ b/src/exchange/afl-tests/id:000425,src:000000,op:arith8,pos:113,val:-22
diff --git a/src/mint/afl-tests/id:000425,src:000000,op:arith8,pos:152,val:+27,+cov b/src/exchange/afl-tests/id:000425,src:000000,op:arith8,pos:152,val:+27,+cov
index 76d693963..76d693963 100644
--- a/src/mint/afl-tests/id:000425,src:000000,op:arith8,pos:152,val:+27,+cov
+++ b/src/exchange/afl-tests/id:000425,src:000000,op:arith8,pos:152,val:+27,+cov
diff --git a/src/mint/afl-tests/id:000426,src:000000,op:arith8,pos:127,val:-20,+cov b/src/exchange/afl-tests/id:000426,src:000000,op:arith8,pos:127,val:-20,+cov
index 4e7375db7..4e7375db7 100644
--- a/src/mint/afl-tests/id:000426,src:000000,op:arith8,pos:127,val:-20,+cov
+++ b/src/exchange/afl-tests/id:000426,src:000000,op:arith8,pos:127,val:-20,+cov
diff --git a/src/mint/afl-tests/id:000426,src:000000,op:arith8,pos:152,val:+31,+cov b/src/exchange/afl-tests/id:000426,src:000000,op:arith8,pos:152,val:+31,+cov
index fff730b94..fff730b94 100644
--- a/src/mint/afl-tests/id:000426,src:000000,op:arith8,pos:152,val:+31,+cov
+++ b/src/exchange/afl-tests/id:000426,src:000000,op:arith8,pos:152,val:+31,+cov
diff --git a/src/mint/afl-tests/id:000427,src:000000,op:arith8,pos:131,val:-20,+cov b/src/exchange/afl-tests/id:000427,src:000000,op:arith8,pos:131,val:-20,+cov
index c4e16be49..c4e16be49 100644
--- a/src/mint/afl-tests/id:000427,src:000000,op:arith8,pos:131,val:-20,+cov
+++ b/src/exchange/afl-tests/id:000427,src:000000,op:arith8,pos:131,val:-20,+cov
diff --git a/src/mint/afl-tests/id:000427,src:000000,op:arith8,pos:153,val:+20,+cov b/src/exchange/afl-tests/id:000427,src:000000,op:arith8,pos:153,val:+20,+cov
index 0b6d26013..0b6d26013 100644
--- a/src/mint/afl-tests/id:000427,src:000000,op:arith8,pos:153,val:+20,+cov
+++ b/src/exchange/afl-tests/id:000427,src:000000,op:arith8,pos:153,val:+20,+cov
diff --git a/src/mint/afl-tests/id:000428,src:000000,op:arith8,pos:132,val:+6,+cov b/src/exchange/afl-tests/id:000428,src:000000,op:arith8,pos:132,val:+6,+cov
index 493e8dc0a..493e8dc0a 100644
--- a/src/mint/afl-tests/id:000428,src:000000,op:arith8,pos:132,val:+6,+cov
+++ b/src/exchange/afl-tests/id:000428,src:000000,op:arith8,pos:132,val:+6,+cov
diff --git a/src/mint/afl-tests/id:000428,src:000000,op:arith8,pos:154,val:+7,+cov b/src/exchange/afl-tests/id:000428,src:000000,op:arith8,pos:154,val:+7,+cov
index 7ecf8fcaf..7ecf8fcaf 100644
--- a/src/mint/afl-tests/id:000428,src:000000,op:arith8,pos:154,val:+7,+cov
+++ b/src/exchange/afl-tests/id:000428,src:000000,op:arith8,pos:154,val:+7,+cov
diff --git a/src/mint/afl-tests/id:000429,src:000000,op:arith8,pos:135,val:-28,+cov b/src/exchange/afl-tests/id:000429,src:000000,op:arith8,pos:135,val:-28,+cov
index f88d76318..f88d76318 100644
--- a/src/mint/afl-tests/id:000429,src:000000,op:arith8,pos:135,val:-28,+cov
+++ b/src/exchange/afl-tests/id:000429,src:000000,op:arith8,pos:135,val:-28,+cov
diff --git a/src/mint/afl-tests/id:000429,src:000000,op:arith8,pos:156,val:+18,+cov b/src/exchange/afl-tests/id:000429,src:000000,op:arith8,pos:156,val:+18,+cov
index 9c41a8c09..9c41a8c09 100644
--- a/src/mint/afl-tests/id:000429,src:000000,op:arith8,pos:156,val:+18,+cov
+++ b/src/exchange/afl-tests/id:000429,src:000000,op:arith8,pos:156,val:+18,+cov
diff --git a/src/mint/afl-tests/id:000430,src:000000,op:arith8,pos:135,val:-35,+cov b/src/exchange/afl-tests/id:000430,src:000000,op:arith8,pos:135,val:-35,+cov
index 410faaf1d..410faaf1d 100644
--- a/src/mint/afl-tests/id:000430,src:000000,op:arith8,pos:135,val:-35,+cov
+++ b/src/exchange/afl-tests/id:000430,src:000000,op:arith8,pos:135,val:-35,+cov
diff --git a/src/mint/afl-tests/id:000430,src:000000,op:arith8,pos:156,val:+28,+cov b/src/exchange/afl-tests/id:000430,src:000000,op:arith8,pos:156,val:+28,+cov
index 3694a205c..3694a205c 100644
--- a/src/mint/afl-tests/id:000430,src:000000,op:arith8,pos:156,val:+28,+cov
+++ b/src/exchange/afl-tests/id:000430,src:000000,op:arith8,pos:156,val:+28,+cov
diff --git a/src/mint/afl-tests/id:000431,src:000000,op:arith8,pos:136,val:+3,+cov b/src/exchange/afl-tests/id:000431,src:000000,op:arith8,pos:136,val:+3,+cov
index 4e155e64a..4e155e64a 100644
--- a/src/mint/afl-tests/id:000431,src:000000,op:arith8,pos:136,val:+3,+cov
+++ b/src/exchange/afl-tests/id:000431,src:000000,op:arith8,pos:136,val:+3,+cov
diff --git a/src/mint/afl-tests/id:000431,src:000000,op:arith8,pos:159,val:-30,+cov b/src/exchange/afl-tests/id:000431,src:000000,op:arith8,pos:159,val:-30,+cov
index 63b86d2b0..63b86d2b0 100644
--- a/src/mint/afl-tests/id:000431,src:000000,op:arith8,pos:159,val:-30,+cov
+++ b/src/exchange/afl-tests/id:000431,src:000000,op:arith8,pos:159,val:-30,+cov
diff --git a/src/mint/afl-tests/id:000432,src:000000,op:arith8,pos:136,val:-5,+cov b/src/exchange/afl-tests/id:000432,src:000000,op:arith8,pos:136,val:-5,+cov
index 8f88c0498..8f88c0498 100644
--- a/src/mint/afl-tests/id:000432,src:000000,op:arith8,pos:136,val:-5,+cov
+++ b/src/exchange/afl-tests/id:000432,src:000000,op:arith8,pos:136,val:-5,+cov
diff --git a/src/mint/afl-tests/id:000432,src:000000,op:arith8,pos:160,val:-31,+cov b/src/exchange/afl-tests/id:000432,src:000000,op:arith8,pos:160,val:-31,+cov
index ee9357cdc..ee9357cdc 100644
--- a/src/mint/afl-tests/id:000432,src:000000,op:arith8,pos:160,val:-31,+cov
+++ b/src/exchange/afl-tests/id:000432,src:000000,op:arith8,pos:160,val:-31,+cov
diff --git a/src/mint/afl-tests/id:000433,src:000000,op:arith8,pos:136,val:-9,+cov b/src/exchange/afl-tests/id:000433,src:000000,op:arith8,pos:136,val:-9,+cov
index b5629267f..b5629267f 100644
--- a/src/mint/afl-tests/id:000433,src:000000,op:arith8,pos:136,val:-9,+cov
+++ b/src/exchange/afl-tests/id:000433,src:000000,op:arith8,pos:136,val:-9,+cov
diff --git a/src/mint/afl-tests/id:000433,src:000000,op:arith8,pos:161,val:+5,+cov b/src/exchange/afl-tests/id:000433,src:000000,op:arith8,pos:161,val:+5,+cov
index c9829f145..c9829f145 100644
--- a/src/mint/afl-tests/id:000433,src:000000,op:arith8,pos:161,val:+5,+cov
+++ b/src/exchange/afl-tests/id:000433,src:000000,op:arith8,pos:161,val:+5,+cov
diff --git a/src/mint/afl-tests/id:000434,src:000000,op:arith8,pos:136,val:+20,+cov b/src/exchange/afl-tests/id:000434,src:000000,op:arith8,pos:136,val:+20,+cov
index 4b138b218..4b138b218 100644
--- a/src/mint/afl-tests/id:000434,src:000000,op:arith8,pos:136,val:+20,+cov
+++ b/src/exchange/afl-tests/id:000434,src:000000,op:arith8,pos:136,val:+20,+cov
diff --git a/src/mint/afl-tests/id:000434,src:000000,op:arith8,pos:161,val:-11,+cov b/src/exchange/afl-tests/id:000434,src:000000,op:arith8,pos:161,val:-11,+cov
index bf0362966..bf0362966 100644
--- a/src/mint/afl-tests/id:000434,src:000000,op:arith8,pos:161,val:-11,+cov
+++ b/src/exchange/afl-tests/id:000434,src:000000,op:arith8,pos:161,val:-11,+cov
diff --git a/src/mint/afl-tests/id:000435,src:000000,op:arith8,pos:136,val:-29,+cov b/src/exchange/afl-tests/id:000435,src:000000,op:arith8,pos:136,val:-29,+cov
index d6c3b3c2d..d6c3b3c2d 100644
--- a/src/mint/afl-tests/id:000435,src:000000,op:arith8,pos:136,val:-29,+cov
+++ b/src/exchange/afl-tests/id:000435,src:000000,op:arith8,pos:136,val:-29,+cov
diff --git a/src/mint/afl-tests/id:000435,src:000000,op:arith8,pos:162,val:+22 b/src/exchange/afl-tests/id:000435,src:000000,op:arith8,pos:162,val:+22
index a50b8a578..a50b8a578 100644
--- a/src/mint/afl-tests/id:000435,src:000000,op:arith8,pos:162,val:+22
+++ b/src/exchange/afl-tests/id:000435,src:000000,op:arith8,pos:162,val:+22
diff --git a/src/mint/afl-tests/id:000436,src:000000,op:arith8,pos:137,val:+7,+cov b/src/exchange/afl-tests/id:000436,src:000000,op:arith8,pos:137,val:+7,+cov
index 192928abd..192928abd 100644
--- a/src/mint/afl-tests/id:000436,src:000000,op:arith8,pos:137,val:+7,+cov
+++ b/src/exchange/afl-tests/id:000436,src:000000,op:arith8,pos:137,val:+7,+cov
diff --git a/src/mint/afl-tests/id:000436,src:000000,op:arith8,pos:163,val:+19,+cov b/src/exchange/afl-tests/id:000436,src:000000,op:arith8,pos:163,val:+19,+cov
index c1dedadd1..c1dedadd1 100644
--- a/src/mint/afl-tests/id:000436,src:000000,op:arith8,pos:163,val:+19,+cov
+++ b/src/exchange/afl-tests/id:000436,src:000000,op:arith8,pos:163,val:+19,+cov
diff --git a/src/mint/afl-tests/id:000437,src:000000,op:arith8,pos:137,val:+10,+cov b/src/exchange/afl-tests/id:000437,src:000000,op:arith8,pos:137,val:+10,+cov
index 2dac2ca15..2dac2ca15 100644
--- a/src/mint/afl-tests/id:000437,src:000000,op:arith8,pos:137,val:+10,+cov
+++ b/src/exchange/afl-tests/id:000437,src:000000,op:arith8,pos:137,val:+10,+cov
diff --git a/src/mint/afl-tests/id:000437,src:000000,op:arith8,pos:164,val:+27,+cov b/src/exchange/afl-tests/id:000437,src:000000,op:arith8,pos:164,val:+27,+cov
index 768fe303c..768fe303c 100644
--- a/src/mint/afl-tests/id:000437,src:000000,op:arith8,pos:164,val:+27,+cov
+++ b/src/exchange/afl-tests/id:000437,src:000000,op:arith8,pos:164,val:+27,+cov
diff --git a/src/mint/afl-tests/id:000438,src:000000,op:arith8,pos:138,val:+19,+cov b/src/exchange/afl-tests/id:000438,src:000000,op:arith8,pos:138,val:+19,+cov
index f9a48f6c7..f9a48f6c7 100644
--- a/src/mint/afl-tests/id:000438,src:000000,op:arith8,pos:138,val:+19,+cov
+++ b/src/exchange/afl-tests/id:000438,src:000000,op:arith8,pos:138,val:+19,+cov
diff --git a/src/mint/afl-tests/id:000438,src:000000,op:arith8,pos:166,val:+13,+cov b/src/exchange/afl-tests/id:000438,src:000000,op:arith8,pos:166,val:+13,+cov
index effa2c9a2..effa2c9a2 100644
--- a/src/mint/afl-tests/id:000438,src:000000,op:arith8,pos:166,val:+13,+cov
+++ b/src/exchange/afl-tests/id:000438,src:000000,op:arith8,pos:166,val:+13,+cov
diff --git a/src/mint/afl-tests/id:000439,src:000000,op:arith8,pos:139,val:+25,+cov b/src/exchange/afl-tests/id:000439,src:000000,op:arith8,pos:139,val:+25,+cov
index d9201b105..d9201b105 100644
--- a/src/mint/afl-tests/id:000439,src:000000,op:arith8,pos:139,val:+25,+cov
+++ b/src/exchange/afl-tests/id:000439,src:000000,op:arith8,pos:139,val:+25,+cov
diff --git a/src/mint/afl-tests/id:000439,src:000000,op:arith8,pos:167,val:+33,+cov b/src/exchange/afl-tests/id:000439,src:000000,op:arith8,pos:167,val:+33,+cov
index 30d33e17d..30d33e17d 100644
--- a/src/mint/afl-tests/id:000439,src:000000,op:arith8,pos:167,val:+33,+cov
+++ b/src/exchange/afl-tests/id:000439,src:000000,op:arith8,pos:167,val:+33,+cov
diff --git a/src/mint/afl-tests/id:000440,src:000000,op:arith8,pos:139,val:-26,+cov b/src/exchange/afl-tests/id:000440,src:000000,op:arith8,pos:139,val:-26,+cov
index 8500eb30f..8500eb30f 100644
--- a/src/mint/afl-tests/id:000440,src:000000,op:arith8,pos:139,val:-26,+cov
+++ b/src/exchange/afl-tests/id:000440,src:000000,op:arith8,pos:139,val:-26,+cov
diff --git a/src/mint/afl-tests/id:000440,src:000000,op:arith8,pos:168,val:-17,+cov b/src/exchange/afl-tests/id:000440,src:000000,op:arith8,pos:168,val:-17,+cov
index f5480d81f..f5480d81f 100644
--- a/src/mint/afl-tests/id:000440,src:000000,op:arith8,pos:168,val:-17,+cov
+++ b/src/exchange/afl-tests/id:000440,src:000000,op:arith8,pos:168,val:-17,+cov
diff --git a/src/mint/afl-tests/id:000441,src:000000,op:arith8,pos:140,val:+20,+cov b/src/exchange/afl-tests/id:000441,src:000000,op:arith8,pos:140,val:+20,+cov
index 820448777..820448777 100644
--- a/src/mint/afl-tests/id:000441,src:000000,op:arith8,pos:140,val:+20,+cov
+++ b/src/exchange/afl-tests/id:000441,src:000000,op:arith8,pos:140,val:+20,+cov
diff --git a/src/mint/afl-tests/id:000441,src:000000,op:arith8,pos:168,val:+29,+cov b/src/exchange/afl-tests/id:000441,src:000000,op:arith8,pos:168,val:+29,+cov
index 1f4bda2c4..1f4bda2c4 100644
--- a/src/mint/afl-tests/id:000441,src:000000,op:arith8,pos:168,val:+29,+cov
+++ b/src/exchange/afl-tests/id:000441,src:000000,op:arith8,pos:168,val:+29,+cov
diff --git a/src/mint/afl-tests/id:000442,src:000000,op:arith8,pos:141,val:+6,+cov b/src/exchange/afl-tests/id:000442,src:000000,op:arith8,pos:141,val:+6,+cov
index 61ea67ae3..61ea67ae3 100644
--- a/src/mint/afl-tests/id:000442,src:000000,op:arith8,pos:141,val:+6,+cov
+++ b/src/exchange/afl-tests/id:000442,src:000000,op:arith8,pos:141,val:+6,+cov
diff --git a/src/mint/afl-tests/id:000442,src:000000,op:arith8,pos:168,val:+30,+cov b/src/exchange/afl-tests/id:000442,src:000000,op:arith8,pos:168,val:+30,+cov
index b49f9857d..b49f9857d 100644
--- a/src/mint/afl-tests/id:000442,src:000000,op:arith8,pos:168,val:+30,+cov
+++ b/src/exchange/afl-tests/id:000442,src:000000,op:arith8,pos:168,val:+30,+cov
diff --git a/src/mint/afl-tests/id:000443,src:000000,op:arith8,pos:141,val:+10,+cov b/src/exchange/afl-tests/id:000443,src:000000,op:arith8,pos:141,val:+10,+cov
index 9c8c7b374..9c8c7b374 100644
--- a/src/mint/afl-tests/id:000443,src:000000,op:arith8,pos:141,val:+10,+cov
+++ b/src/exchange/afl-tests/id:000443,src:000000,op:arith8,pos:141,val:+10,+cov
diff --git a/src/mint/afl-tests/id:000443,src:000000,op:arith8,pos:171,val:+22,+cov b/src/exchange/afl-tests/id:000443,src:000000,op:arith8,pos:171,val:+22,+cov
index 8e63b0dae..8e63b0dae 100644
--- a/src/mint/afl-tests/id:000443,src:000000,op:arith8,pos:171,val:+22,+cov
+++ b/src/exchange/afl-tests/id:000443,src:000000,op:arith8,pos:171,val:+22,+cov
diff --git a/src/mint/afl-tests/id:000444,src:000000,op:arith8,pos:141,val:+13,+cov b/src/exchange/afl-tests/id:000444,src:000000,op:arith8,pos:141,val:+13,+cov
index 35f21e74f..35f21e74f 100644
--- a/src/mint/afl-tests/id:000444,src:000000,op:arith8,pos:141,val:+13,+cov
+++ b/src/exchange/afl-tests/id:000444,src:000000,op:arith8,pos:141,val:+13,+cov
diff --git a/src/mint/afl-tests/id:000444,src:000000,op:arith8,pos:171,val:+25,+cov b/src/exchange/afl-tests/id:000444,src:000000,op:arith8,pos:171,val:+25,+cov
index 506a1510c..506a1510c 100644
--- a/src/mint/afl-tests/id:000444,src:000000,op:arith8,pos:171,val:+25,+cov
+++ b/src/exchange/afl-tests/id:000444,src:000000,op:arith8,pos:171,val:+25,+cov
diff --git a/src/mint/afl-tests/id:000445,src:000000,op:arith8,pos:141,val:+20,+cov b/src/exchange/afl-tests/id:000445,src:000000,op:arith8,pos:141,val:+20,+cov
index 63db44e2b..63db44e2b 100644
--- a/src/mint/afl-tests/id:000445,src:000000,op:arith8,pos:141,val:+20,+cov
+++ b/src/exchange/afl-tests/id:000445,src:000000,op:arith8,pos:141,val:+20,+cov
diff --git a/src/mint/afl-tests/id:000445,src:000000,op:arith8,pos:172,val:-13,+cov b/src/exchange/afl-tests/id:000445,src:000000,op:arith8,pos:172,val:-13,+cov
index 2fe1562e8..2fe1562e8 100644
--- a/src/mint/afl-tests/id:000445,src:000000,op:arith8,pos:172,val:-13,+cov
+++ b/src/exchange/afl-tests/id:000445,src:000000,op:arith8,pos:172,val:-13,+cov
diff --git a/src/mint/afl-tests/id:000446,src:000000,op:arith8,pos:142,val:+6,+cov b/src/exchange/afl-tests/id:000446,src:000000,op:arith8,pos:142,val:+6,+cov
index 297b2993e..297b2993e 100644
--- a/src/mint/afl-tests/id:000446,src:000000,op:arith8,pos:142,val:+6,+cov
+++ b/src/exchange/afl-tests/id:000446,src:000000,op:arith8,pos:142,val:+6,+cov
diff --git a/src/mint/afl-tests/id:000446,src:000000,op:arith8,pos:172,val:+19,+cov b/src/exchange/afl-tests/id:000446,src:000000,op:arith8,pos:172,val:+19,+cov
index ed3d1c7d4..ed3d1c7d4 100644
--- a/src/mint/afl-tests/id:000446,src:000000,op:arith8,pos:172,val:+19,+cov
+++ b/src/exchange/afl-tests/id:000446,src:000000,op:arith8,pos:172,val:+19,+cov
diff --git a/src/mint/afl-tests/id:000447,src:000000,op:arith8,pos:142,val:-20,+cov b/src/exchange/afl-tests/id:000447,src:000000,op:arith8,pos:142,val:-20,+cov
index 07fa3dc9b..07fa3dc9b 100644
--- a/src/mint/afl-tests/id:000447,src:000000,op:arith8,pos:142,val:-20,+cov
+++ b/src/exchange/afl-tests/id:000447,src:000000,op:arith8,pos:142,val:-20,+cov
diff --git a/src/mint/afl-tests/id:000447,src:000000,op:arith8,pos:173,val:-15,+cov b/src/exchange/afl-tests/id:000447,src:000000,op:arith8,pos:173,val:-15,+cov
index adcf02bdf..adcf02bdf 100644
--- a/src/mint/afl-tests/id:000447,src:000000,op:arith8,pos:173,val:-15,+cov
+++ b/src/exchange/afl-tests/id:000447,src:000000,op:arith8,pos:173,val:-15,+cov
diff --git a/src/mint/afl-tests/id:000448,src:000000,op:arith8,pos:143,val:+17,+cov b/src/exchange/afl-tests/id:000448,src:000000,op:arith8,pos:143,val:+17,+cov
index 548552a04..548552a04 100644
--- a/src/mint/afl-tests/id:000448,src:000000,op:arith8,pos:143,val:+17,+cov
+++ b/src/exchange/afl-tests/id:000448,src:000000,op:arith8,pos:143,val:+17,+cov
diff --git a/src/mint/afl-tests/id:000448,src:000000,op:arith8,pos:174,val:+23,+cov b/src/exchange/afl-tests/id:000448,src:000000,op:arith8,pos:174,val:+23,+cov
index 307771d87..307771d87 100644
--- a/src/mint/afl-tests/id:000448,src:000000,op:arith8,pos:174,val:+23,+cov
+++ b/src/exchange/afl-tests/id:000448,src:000000,op:arith8,pos:174,val:+23,+cov
diff --git a/src/mint/afl-tests/id:000449,src:000000,op:arith8,pos:144,val:+28,+cov b/src/exchange/afl-tests/id:000449,src:000000,op:arith8,pos:144,val:+28,+cov
index 931806502..931806502 100644
--- a/src/mint/afl-tests/id:000449,src:000000,op:arith8,pos:144,val:+28,+cov
+++ b/src/exchange/afl-tests/id:000449,src:000000,op:arith8,pos:144,val:+28,+cov
diff --git a/src/mint/afl-tests/id:000449,src:000000,op:arith8,pos:174,val:+33,+cov b/src/exchange/afl-tests/id:000449,src:000000,op:arith8,pos:174,val:+33,+cov
index 14de52665..14de52665 100644
--- a/src/mint/afl-tests/id:000449,src:000000,op:arith8,pos:174,val:+33,+cov
+++ b/src/exchange/afl-tests/id:000449,src:000000,op:arith8,pos:174,val:+33,+cov
diff --git a/src/mint/afl-tests/id:000450,src:000000,op:arith8,pos:145,val:+27,+cov b/src/exchange/afl-tests/id:000450,src:000000,op:arith8,pos:145,val:+27,+cov
index 4ece763df..4ece763df 100644
--- a/src/mint/afl-tests/id:000450,src:000000,op:arith8,pos:145,val:+27,+cov
+++ b/src/exchange/afl-tests/id:000450,src:000000,op:arith8,pos:145,val:+27,+cov
diff --git a/src/mint/afl-tests/id:000450,src:000000,op:arith8,pos:176,val:+20,+cov b/src/exchange/afl-tests/id:000450,src:000000,op:arith8,pos:176,val:+20,+cov
index 72a01931e..72a01931e 100644
--- a/src/mint/afl-tests/id:000450,src:000000,op:arith8,pos:176,val:+20,+cov
+++ b/src/exchange/afl-tests/id:000450,src:000000,op:arith8,pos:176,val:+20,+cov
diff --git a/src/mint/afl-tests/id:000451,src:000000,op:arith8,pos:146,val:-11,+cov b/src/exchange/afl-tests/id:000451,src:000000,op:arith8,pos:146,val:-11,+cov
index 1bd939b73..1bd939b73 100644
--- a/src/mint/afl-tests/id:000451,src:000000,op:arith8,pos:146,val:-11,+cov
+++ b/src/exchange/afl-tests/id:000451,src:000000,op:arith8,pos:146,val:-11,+cov
diff --git a/src/mint/afl-tests/id:000451,src:000000,op:arith8,pos:177,val:+33,+cov b/src/exchange/afl-tests/id:000451,src:000000,op:arith8,pos:177,val:+33,+cov
index 33a81bae4..33a81bae4 100644
--- a/src/mint/afl-tests/id:000451,src:000000,op:arith8,pos:177,val:+33,+cov
+++ b/src/exchange/afl-tests/id:000451,src:000000,op:arith8,pos:177,val:+33,+cov
diff --git a/src/mint/afl-tests/id:000452,src:000000,op:arith8,pos:146,val:-13,+cov b/src/exchange/afl-tests/id:000452,src:000000,op:arith8,pos:146,val:-13,+cov
index 0aad43f11..0aad43f11 100644
--- a/src/mint/afl-tests/id:000452,src:000000,op:arith8,pos:146,val:-13,+cov
+++ b/src/exchange/afl-tests/id:000452,src:000000,op:arith8,pos:146,val:-13,+cov
diff --git a/src/mint/afl-tests/id:000452,src:000000,op:arith8,pos:181,val:+12,+cov b/src/exchange/afl-tests/id:000452,src:000000,op:arith8,pos:181,val:+12,+cov
index da7b5cee6..da7b5cee6 100644
--- a/src/mint/afl-tests/id:000452,src:000000,op:arith8,pos:181,val:+12,+cov
+++ b/src/exchange/afl-tests/id:000452,src:000000,op:arith8,pos:181,val:+12,+cov
diff --git a/src/mint/afl-tests/id:000453,src:000000,op:arith8,pos:146,val:-21,+cov b/src/exchange/afl-tests/id:000453,src:000000,op:arith8,pos:146,val:-21,+cov
index 1ae69b17a..1ae69b17a 100644
--- a/src/mint/afl-tests/id:000453,src:000000,op:arith8,pos:146,val:-21,+cov
+++ b/src/exchange/afl-tests/id:000453,src:000000,op:arith8,pos:146,val:-21,+cov
diff --git a/src/mint/afl-tests/id:000453,src:000000,op:arith8,pos:181,val:+21 b/src/exchange/afl-tests/id:000453,src:000000,op:arith8,pos:181,val:+21
index 09fcb96fa..09fcb96fa 100644
--- a/src/mint/afl-tests/id:000453,src:000000,op:arith8,pos:181,val:+21
+++ b/src/exchange/afl-tests/id:000453,src:000000,op:arith8,pos:181,val:+21
diff --git a/src/mint/afl-tests/id:000454,src:000000,op:arith8,pos:147,val:-3,+cov b/src/exchange/afl-tests/id:000454,src:000000,op:arith8,pos:147,val:-3,+cov
index 9ff533460..9ff533460 100644
--- a/src/mint/afl-tests/id:000454,src:000000,op:arith8,pos:147,val:-3,+cov
+++ b/src/exchange/afl-tests/id:000454,src:000000,op:arith8,pos:147,val:-3,+cov
diff --git a/src/mint/afl-tests/id:000454,src:000000,op:arith8,pos:181,val:+25,+cov b/src/exchange/afl-tests/id:000454,src:000000,op:arith8,pos:181,val:+25,+cov
index 8e290456a..8e290456a 100644
--- a/src/mint/afl-tests/id:000454,src:000000,op:arith8,pos:181,val:+25,+cov
+++ b/src/exchange/afl-tests/id:000454,src:000000,op:arith8,pos:181,val:+25,+cov
diff --git a/src/mint/afl-tests/id:000455,src:000000,op:arith8,pos:147,val:-9,+cov b/src/exchange/afl-tests/id:000455,src:000000,op:arith8,pos:147,val:-9,+cov
index a94d76b99..a94d76b99 100644
--- a/src/mint/afl-tests/id:000455,src:000000,op:arith8,pos:147,val:-9,+cov
+++ b/src/exchange/afl-tests/id:000455,src:000000,op:arith8,pos:147,val:-9,+cov
diff --git a/src/mint/afl-tests/id:000455,src:000000,op:arith8,pos:183,val:-3 b/src/exchange/afl-tests/id:000455,src:000000,op:arith8,pos:183,val:-3
index e41f1c87d..e41f1c87d 100644
--- a/src/mint/afl-tests/id:000455,src:000000,op:arith8,pos:183,val:-3
+++ b/src/exchange/afl-tests/id:000455,src:000000,op:arith8,pos:183,val:-3
diff --git a/src/mint/afl-tests/id:000456,src:000000,op:arith8,pos:147,val:-13,+cov b/src/exchange/afl-tests/id:000456,src:000000,op:arith8,pos:147,val:-13,+cov
index b53294317..b53294317 100644
--- a/src/mint/afl-tests/id:000456,src:000000,op:arith8,pos:147,val:-13,+cov
+++ b/src/exchange/afl-tests/id:000456,src:000000,op:arith8,pos:147,val:-13,+cov
diff --git a/src/mint/afl-tests/id:000456,src:000000,op:arith8,pos:184,val:-13 b/src/exchange/afl-tests/id:000456,src:000000,op:arith8,pos:184,val:-13
index 02714457a..02714457a 100644
--- a/src/mint/afl-tests/id:000456,src:000000,op:arith8,pos:184,val:-13
+++ b/src/exchange/afl-tests/id:000456,src:000000,op:arith8,pos:184,val:-13
diff --git a/src/mint/afl-tests/id:000457,src:000000,op:arith8,pos:148,val:+12,+cov b/src/exchange/afl-tests/id:000457,src:000000,op:arith8,pos:148,val:+12,+cov
index 297a3677c..297a3677c 100644
--- a/src/mint/afl-tests/id:000457,src:000000,op:arith8,pos:148,val:+12,+cov
+++ b/src/exchange/afl-tests/id:000457,src:000000,op:arith8,pos:148,val:+12,+cov
diff --git a/src/mint/afl-tests/id:000457,src:000000,op:arith8,pos:184,val:-34,+cov b/src/exchange/afl-tests/id:000457,src:000000,op:arith8,pos:184,val:-34,+cov
index 65c13f3e8..65c13f3e8 100644
--- a/src/mint/afl-tests/id:000457,src:000000,op:arith8,pos:184,val:-34,+cov
+++ b/src/exchange/afl-tests/id:000457,src:000000,op:arith8,pos:184,val:-34,+cov
diff --git a/src/mint/afl-tests/id:000458,src:000000,op:arith8,pos:151,val:-7,+cov b/src/exchange/afl-tests/id:000458,src:000000,op:arith8,pos:151,val:-7,+cov
index 7a4a55286..7a4a55286 100644
--- a/src/mint/afl-tests/id:000458,src:000000,op:arith8,pos:151,val:-7,+cov
+++ b/src/exchange/afl-tests/id:000458,src:000000,op:arith8,pos:151,val:-7,+cov
diff --git a/src/mint/afl-tests/id:000458,src:000000,op:arith8,pos:185,val:-6,+cov b/src/exchange/afl-tests/id:000458,src:000000,op:arith8,pos:185,val:-6,+cov
index 41f82367a..41f82367a 100644
--- a/src/mint/afl-tests/id:000458,src:000000,op:arith8,pos:185,val:-6,+cov
+++ b/src/exchange/afl-tests/id:000458,src:000000,op:arith8,pos:185,val:-6,+cov
diff --git a/src/mint/afl-tests/id:000459,src:000000,op:arith8,pos:151,val:+15,+cov b/src/exchange/afl-tests/id:000459,src:000000,op:arith8,pos:151,val:+15,+cov
index 9dab0d5d9..9dab0d5d9 100644
--- a/src/mint/afl-tests/id:000459,src:000000,op:arith8,pos:151,val:+15,+cov
+++ b/src/exchange/afl-tests/id:000459,src:000000,op:arith8,pos:151,val:+15,+cov
diff --git a/src/mint/afl-tests/id:000459,src:000000,op:arith8,pos:185,val:+14,+cov b/src/exchange/afl-tests/id:000459,src:000000,op:arith8,pos:185,val:+14,+cov
index a2d874949..a2d874949 100644
--- a/src/mint/afl-tests/id:000459,src:000000,op:arith8,pos:185,val:+14,+cov
+++ b/src/exchange/afl-tests/id:000459,src:000000,op:arith8,pos:185,val:+14,+cov
diff --git a/src/mint/afl-tests/id:000460,src:000000,op:arith8,pos:152,val:-7,+cov b/src/exchange/afl-tests/id:000460,src:000000,op:arith8,pos:152,val:-7,+cov
index af849ade9..af849ade9 100644
--- a/src/mint/afl-tests/id:000460,src:000000,op:arith8,pos:152,val:-7,+cov
+++ b/src/exchange/afl-tests/id:000460,src:000000,op:arith8,pos:152,val:-7,+cov
diff --git a/src/mint/afl-tests/id:000460,src:000000,op:arith8,pos:185,val:+29,+cov b/src/exchange/afl-tests/id:000460,src:000000,op:arith8,pos:185,val:+29,+cov
index 3e720e184..3e720e184 100644
--- a/src/mint/afl-tests/id:000460,src:000000,op:arith8,pos:185,val:+29,+cov
+++ b/src/exchange/afl-tests/id:000460,src:000000,op:arith8,pos:185,val:+29,+cov
diff --git a/src/mint/afl-tests/id:000461,src:000000,op:arith8,pos:152,val:+25,+cov b/src/exchange/afl-tests/id:000461,src:000000,op:arith8,pos:152,val:+25,+cov
index ec79f0f25..ec79f0f25 100644
--- a/src/mint/afl-tests/id:000461,src:000000,op:arith8,pos:152,val:+25,+cov
+++ b/src/exchange/afl-tests/id:000461,src:000000,op:arith8,pos:152,val:+25,+cov
diff --git a/src/mint/afl-tests/id:000461,src:000000,op:arith8,pos:186,val:+23,+cov b/src/exchange/afl-tests/id:000461,src:000000,op:arith8,pos:186,val:+23,+cov
index fd6016541..fd6016541 100644
--- a/src/mint/afl-tests/id:000461,src:000000,op:arith8,pos:186,val:+23,+cov
+++ b/src/exchange/afl-tests/id:000461,src:000000,op:arith8,pos:186,val:+23,+cov
diff --git a/src/mint/afl-tests/id:000462,src:000000,op:arith8,pos:152,val:-30 b/src/exchange/afl-tests/id:000462,src:000000,op:arith8,pos:152,val:-30
index b17543cf4..b17543cf4 100644
--- a/src/mint/afl-tests/id:000462,src:000000,op:arith8,pos:152,val:-30
+++ b/src/exchange/afl-tests/id:000462,src:000000,op:arith8,pos:152,val:-30
diff --git a/src/mint/afl-tests/id:000462,src:000000,op:arith8,pos:191,val:-26,+cov b/src/exchange/afl-tests/id:000462,src:000000,op:arith8,pos:191,val:-26,+cov
index f9f03502c..f9f03502c 100644
--- a/src/mint/afl-tests/id:000462,src:000000,op:arith8,pos:191,val:-26,+cov
+++ b/src/exchange/afl-tests/id:000462,src:000000,op:arith8,pos:191,val:-26,+cov
diff --git a/src/mint/afl-tests/id:000463,src:000000,op:arith8,pos:153,val:+28,+cov b/src/exchange/afl-tests/id:000463,src:000000,op:arith8,pos:153,val:+28,+cov
index de4bba6fe..de4bba6fe 100644
--- a/src/mint/afl-tests/id:000463,src:000000,op:arith8,pos:153,val:+28,+cov
+++ b/src/exchange/afl-tests/id:000463,src:000000,op:arith8,pos:153,val:+28,+cov
diff --git a/src/mint/afl-tests/id:000463,src:000000,op:arith8,pos:196,val:-18,+cov b/src/exchange/afl-tests/id:000463,src:000000,op:arith8,pos:196,val:-18,+cov
index ba7cce630..ba7cce630 100644
--- a/src/mint/afl-tests/id:000463,src:000000,op:arith8,pos:196,val:-18,+cov
+++ b/src/exchange/afl-tests/id:000463,src:000000,op:arith8,pos:196,val:-18,+cov
diff --git a/src/mint/afl-tests/id:000464,src:000000,op:arith8,pos:157,val:+8,+cov b/src/exchange/afl-tests/id:000464,src:000000,op:arith8,pos:157,val:+8,+cov
index 56dec1da7..56dec1da7 100644
--- a/src/mint/afl-tests/id:000464,src:000000,op:arith8,pos:157,val:+8,+cov
+++ b/src/exchange/afl-tests/id:000464,src:000000,op:arith8,pos:157,val:+8,+cov
diff --git a/src/mint/afl-tests/id:000464,src:000000,op:arith8,pos:203,val:+22,+cov b/src/exchange/afl-tests/id:000464,src:000000,op:arith8,pos:203,val:+22,+cov
index 950bac3e8..950bac3e8 100644
--- a/src/mint/afl-tests/id:000464,src:000000,op:arith8,pos:203,val:+22,+cov
+++ b/src/exchange/afl-tests/id:000464,src:000000,op:arith8,pos:203,val:+22,+cov
diff --git a/src/mint/afl-tests/id:000465,src:000000,op:arith8,pos:157,val:-9,+cov b/src/exchange/afl-tests/id:000465,src:000000,op:arith8,pos:157,val:-9,+cov
index cee6141df..cee6141df 100644
--- a/src/mint/afl-tests/id:000465,src:000000,op:arith8,pos:157,val:-9,+cov
+++ b/src/exchange/afl-tests/id:000465,src:000000,op:arith8,pos:157,val:-9,+cov
diff --git a/src/mint/afl-tests/id:000465,src:000000,op:arith8,pos:225,val:-6,+cov b/src/exchange/afl-tests/id:000465,src:000000,op:arith8,pos:225,val:-6,+cov
index 9626a14a8..9626a14a8 100644
--- a/src/mint/afl-tests/id:000465,src:000000,op:arith8,pos:225,val:-6,+cov
+++ b/src/exchange/afl-tests/id:000465,src:000000,op:arith8,pos:225,val:-6,+cov
diff --git a/src/mint/afl-tests/id:000466,src:000000,op:arith8,pos:157,val:-12,+cov b/src/exchange/afl-tests/id:000466,src:000000,op:arith8,pos:157,val:-12,+cov
index 2f07f5900..2f07f5900 100644
--- a/src/mint/afl-tests/id:000466,src:000000,op:arith8,pos:157,val:-12,+cov
+++ b/src/exchange/afl-tests/id:000466,src:000000,op:arith8,pos:157,val:-12,+cov
diff --git a/src/mint/afl-tests/id:000466,src:000000,op:arith8,pos:241,val:-26,+cov b/src/exchange/afl-tests/id:000466,src:000000,op:arith8,pos:241,val:-26,+cov
index b0c893c5e..b0c893c5e 100644
--- a/src/mint/afl-tests/id:000466,src:000000,op:arith8,pos:241,val:-26,+cov
+++ b/src/exchange/afl-tests/id:000466,src:000000,op:arith8,pos:241,val:-26,+cov
diff --git a/src/mint/afl-tests/id:000467,src:000000,op:arith8,pos:157,val:-21,+cov b/src/exchange/afl-tests/id:000467,src:000000,op:arith8,pos:157,val:-21,+cov
index 66560a702..66560a702 100644
--- a/src/mint/afl-tests/id:000467,src:000000,op:arith8,pos:157,val:-21,+cov
+++ b/src/exchange/afl-tests/id:000467,src:000000,op:arith8,pos:157,val:-21,+cov
diff --git a/src/mint/afl-tests/id:000467,src:000000,op:arith8,pos:268,val:-4,+cov b/src/exchange/afl-tests/id:000467,src:000000,op:arith8,pos:268,val:-4,+cov
index cd62df7e1..cd62df7e1 100644
--- a/src/mint/afl-tests/id:000467,src:000000,op:arith8,pos:268,val:-4,+cov
+++ b/src/exchange/afl-tests/id:000467,src:000000,op:arith8,pos:268,val:-4,+cov
diff --git a/src/mint/afl-tests/id:000468,src:000000,op:arith8,pos:158,val:-9,+cov b/src/exchange/afl-tests/id:000468,src:000000,op:arith8,pos:158,val:-9,+cov
index 2a10abb37..2a10abb37 100644
--- a/src/mint/afl-tests/id:000468,src:000000,op:arith8,pos:158,val:-9,+cov
+++ b/src/exchange/afl-tests/id:000468,src:000000,op:arith8,pos:158,val:-9,+cov
diff --git a/src/mint/afl-tests/id:000468,src:000000,op:arith8,pos:268,val:+7,+cov b/src/exchange/afl-tests/id:000468,src:000000,op:arith8,pos:268,val:+7,+cov
index d88da41ab..d88da41ab 100644
--- a/src/mint/afl-tests/id:000468,src:000000,op:arith8,pos:268,val:+7,+cov
+++ b/src/exchange/afl-tests/id:000468,src:000000,op:arith8,pos:268,val:+7,+cov
diff --git a/src/mint/afl-tests/id:000469,src:000000,op:arith8,pos:158,val:+25,+cov b/src/exchange/afl-tests/id:000469,src:000000,op:arith8,pos:158,val:+25,+cov
index 16a083e5c..16a083e5c 100644
--- a/src/mint/afl-tests/id:000469,src:000000,op:arith8,pos:158,val:+25,+cov
+++ b/src/exchange/afl-tests/id:000469,src:000000,op:arith8,pos:158,val:+25,+cov
diff --git a/src/mint/afl-tests/id:000469,src:000000,op:arith8,pos:269,val:+11,+cov b/src/exchange/afl-tests/id:000469,src:000000,op:arith8,pos:269,val:+11,+cov
index 7793c098b..7793c098b 100644
--- a/src/mint/afl-tests/id:000469,src:000000,op:arith8,pos:269,val:+11,+cov
+++ b/src/exchange/afl-tests/id:000469,src:000000,op:arith8,pos:269,val:+11,+cov
diff --git a/src/mint/afl-tests/id:000470,src:000000,op:arith8,pos:159,val:-7,+cov b/src/exchange/afl-tests/id:000470,src:000000,op:arith8,pos:159,val:-7,+cov
index 831cba553..831cba553 100644
--- a/src/mint/afl-tests/id:000470,src:000000,op:arith8,pos:159,val:-7,+cov
+++ b/src/exchange/afl-tests/id:000470,src:000000,op:arith8,pos:159,val:-7,+cov
diff --git a/src/mint/afl-tests/id:000470,src:000000,op:arith8,pos:272,val:+29,+cov b/src/exchange/afl-tests/id:000470,src:000000,op:arith8,pos:272,val:+29,+cov
index 7a0565d3b..7a0565d3b 100644
--- a/src/mint/afl-tests/id:000470,src:000000,op:arith8,pos:272,val:+29,+cov
+++ b/src/exchange/afl-tests/id:000470,src:000000,op:arith8,pos:272,val:+29,+cov
diff --git a/src/mint/afl-tests/id:000471,src:000000,op:arith8,pos:159,val:+10,+cov b/src/exchange/afl-tests/id:000471,src:000000,op:arith8,pos:159,val:+10,+cov
index 56a9de5cd..56a9de5cd 100644
--- a/src/mint/afl-tests/id:000471,src:000000,op:arith8,pos:159,val:+10,+cov
+++ b/src/exchange/afl-tests/id:000471,src:000000,op:arith8,pos:159,val:+10,+cov
diff --git a/src/mint/afl-tests/id:000471,src:000000,op:arith8,pos:273,val:+29,+cov b/src/exchange/afl-tests/id:000471,src:000000,op:arith8,pos:273,val:+29,+cov
index 4676ad82c..4676ad82c 100644
--- a/src/mint/afl-tests/id:000471,src:000000,op:arith8,pos:273,val:+29,+cov
+++ b/src/exchange/afl-tests/id:000471,src:000000,op:arith8,pos:273,val:+29,+cov
diff --git a/src/mint/afl-tests/id:000472,src:000000,op:arith8,pos:159,val:-11,+cov b/src/exchange/afl-tests/id:000472,src:000000,op:arith8,pos:159,val:-11,+cov
index befe62436..befe62436 100644
--- a/src/mint/afl-tests/id:000472,src:000000,op:arith8,pos:159,val:-11,+cov
+++ b/src/exchange/afl-tests/id:000472,src:000000,op:arith8,pos:159,val:-11,+cov
diff --git a/src/mint/afl-tests/id:000472,src:000000,op:arith8,pos:274,val:+11,+cov b/src/exchange/afl-tests/id:000472,src:000000,op:arith8,pos:274,val:+11,+cov
index 63916d85a..63916d85a 100644
--- a/src/mint/afl-tests/id:000472,src:000000,op:arith8,pos:274,val:+11,+cov
+++ b/src/exchange/afl-tests/id:000472,src:000000,op:arith8,pos:274,val:+11,+cov
diff --git a/src/mint/afl-tests/id:000473,src:000000,op:arith8,pos:160,val:+19,+cov b/src/exchange/afl-tests/id:000473,src:000000,op:arith8,pos:160,val:+19,+cov
index 5463016e5..5463016e5 100644
--- a/src/mint/afl-tests/id:000473,src:000000,op:arith8,pos:160,val:+19,+cov
+++ b/src/exchange/afl-tests/id:000473,src:000000,op:arith8,pos:160,val:+19,+cov
diff --git a/src/mint/afl-tests/id:000473,src:000000,op:arith8,pos:276,val:+9,+cov b/src/exchange/afl-tests/id:000473,src:000000,op:arith8,pos:276,val:+9,+cov
index 9646bcbfe..9646bcbfe 100644
--- a/src/mint/afl-tests/id:000473,src:000000,op:arith8,pos:276,val:+9,+cov
+++ b/src/exchange/afl-tests/id:000473,src:000000,op:arith8,pos:276,val:+9,+cov
diff --git a/src/mint/afl-tests/id:000474,src:000000,op:arith8,pos:161,val:+14,+cov b/src/exchange/afl-tests/id:000474,src:000000,op:arith8,pos:161,val:+14,+cov
index 09756f9a8..09756f9a8 100644
--- a/src/mint/afl-tests/id:000474,src:000000,op:arith8,pos:161,val:+14,+cov
+++ b/src/exchange/afl-tests/id:000474,src:000000,op:arith8,pos:161,val:+14,+cov
diff --git a/src/mint/afl-tests/id:000474,src:000000,op:arith8,pos:276,val:+19,+cov b/src/exchange/afl-tests/id:000474,src:000000,op:arith8,pos:276,val:+19,+cov
index 70fd22e89..70fd22e89 100644
--- a/src/mint/afl-tests/id:000474,src:000000,op:arith8,pos:276,val:+19,+cov
+++ b/src/exchange/afl-tests/id:000474,src:000000,op:arith8,pos:276,val:+19,+cov
diff --git a/src/mint/afl-tests/id:000475,src:000000,op:arith8,pos:162,val:+7,+cov b/src/exchange/afl-tests/id:000475,src:000000,op:arith8,pos:162,val:+7,+cov
index e0c167c5f..e0c167c5f 100644
--- a/src/mint/afl-tests/id:000475,src:000000,op:arith8,pos:162,val:+7,+cov
+++ b/src/exchange/afl-tests/id:000475,src:000000,op:arith8,pos:162,val:+7,+cov
diff --git a/src/mint/afl-tests/id:000475,src:000000,op:arith8,pos:277,val:+35,+cov b/src/exchange/afl-tests/id:000475,src:000000,op:arith8,pos:277,val:+35,+cov
index 5ba54d7fd..5ba54d7fd 100644
--- a/src/mint/afl-tests/id:000475,src:000000,op:arith8,pos:277,val:+35,+cov
+++ b/src/exchange/afl-tests/id:000475,src:000000,op:arith8,pos:277,val:+35,+cov
diff --git a/src/mint/afl-tests/id:000476,src:000000,op:arith8,pos:163,val:+26,+cov b/src/exchange/afl-tests/id:000476,src:000000,op:arith8,pos:163,val:+26,+cov
index 8a6320384..8a6320384 100644
--- a/src/mint/afl-tests/id:000476,src:000000,op:arith8,pos:163,val:+26,+cov
+++ b/src/exchange/afl-tests/id:000476,src:000000,op:arith8,pos:163,val:+26,+cov
diff --git a/src/mint/afl-tests/id:000476,src:000000,op:arith8,pos:278,val:+5,+cov b/src/exchange/afl-tests/id:000476,src:000000,op:arith8,pos:278,val:+5,+cov
index 2fbf6ce63..2fbf6ce63 100644
--- a/src/mint/afl-tests/id:000476,src:000000,op:arith8,pos:278,val:+5,+cov
+++ b/src/exchange/afl-tests/id:000476,src:000000,op:arith8,pos:278,val:+5,+cov
diff --git a/src/mint/afl-tests/id:000477,src:000000,op:arith8,pos:163,val:+31,+cov b/src/exchange/afl-tests/id:000477,src:000000,op:arith8,pos:163,val:+31,+cov
index f12180d05..f12180d05 100644
--- a/src/mint/afl-tests/id:000477,src:000000,op:arith8,pos:163,val:+31,+cov
+++ b/src/exchange/afl-tests/id:000477,src:000000,op:arith8,pos:163,val:+31,+cov
diff --git a/src/mint/afl-tests/id:000477,src:000000,op:arith8,pos:305,val:+14,+cov b/src/exchange/afl-tests/id:000477,src:000000,op:arith8,pos:305,val:+14,+cov
index d5a1e9f8b..d5a1e9f8b 100644
--- a/src/mint/afl-tests/id:000477,src:000000,op:arith8,pos:305,val:+14,+cov
+++ b/src/exchange/afl-tests/id:000477,src:000000,op:arith8,pos:305,val:+14,+cov
diff --git a/src/mint/afl-tests/id:000478,src:000000,op:arith8,pos:164,val:+2,+cov b/src/exchange/afl-tests/id:000478,src:000000,op:arith8,pos:164,val:+2,+cov
index 371cbf60a..371cbf60a 100644
--- a/src/mint/afl-tests/id:000478,src:000000,op:arith8,pos:164,val:+2,+cov
+++ b/src/exchange/afl-tests/id:000478,src:000000,op:arith8,pos:164,val:+2,+cov
diff --git a/src/mint/afl-tests/id:000478,src:000000,op:arith8,pos:306,val:-20,+cov b/src/exchange/afl-tests/id:000478,src:000000,op:arith8,pos:306,val:-20,+cov
index dc245dfaa..dc245dfaa 100644
--- a/src/mint/afl-tests/id:000478,src:000000,op:arith8,pos:306,val:-20,+cov
+++ b/src/exchange/afl-tests/id:000478,src:000000,op:arith8,pos:306,val:-20,+cov
diff --git a/src/mint/afl-tests/id:000479,src:000000,op:arith8,pos:169,val:+7,+cov b/src/exchange/afl-tests/id:000479,src:000000,op:arith8,pos:169,val:+7,+cov
index 979c6d178..979c6d178 100644
--- a/src/mint/afl-tests/id:000479,src:000000,op:arith8,pos:169,val:+7,+cov
+++ b/src/exchange/afl-tests/id:000479,src:000000,op:arith8,pos:169,val:+7,+cov
diff --git a/src/mint/afl-tests/id:000479,src:000000,op:arith8,pos:314,val:-17,+cov b/src/exchange/afl-tests/id:000479,src:000000,op:arith8,pos:314,val:-17,+cov
index df6b70815..df6b70815 100644
--- a/src/mint/afl-tests/id:000479,src:000000,op:arith8,pos:314,val:-17,+cov
+++ b/src/exchange/afl-tests/id:000479,src:000000,op:arith8,pos:314,val:-17,+cov
diff --git a/src/mint/afl-tests/id:000480,src:000000,op:arith8,pos:169,val:-9,+cov b/src/exchange/afl-tests/id:000480,src:000000,op:arith8,pos:169,val:-9,+cov
index cff131ce3..cff131ce3 100644
--- a/src/mint/afl-tests/id:000480,src:000000,op:arith8,pos:169,val:-9,+cov
+++ b/src/exchange/afl-tests/id:000480,src:000000,op:arith8,pos:169,val:-9,+cov
diff --git a/src/mint/afl-tests/id:000480,src:000000,op:arith8,pos:315,val:-17,+cov b/src/exchange/afl-tests/id:000480,src:000000,op:arith8,pos:315,val:-17,+cov
index b14c57e7c..b14c57e7c 100644
--- a/src/mint/afl-tests/id:000480,src:000000,op:arith8,pos:315,val:-17,+cov
+++ b/src/exchange/afl-tests/id:000480,src:000000,op:arith8,pos:315,val:-17,+cov
diff --git a/src/mint/afl-tests/id:000481,src:000000,op:arith8,pos:169,val:+19,+cov b/src/exchange/afl-tests/id:000481,src:000000,op:arith8,pos:169,val:+19,+cov
index 5850b5927..5850b5927 100644
--- a/src/mint/afl-tests/id:000481,src:000000,op:arith8,pos:169,val:+19,+cov
+++ b/src/exchange/afl-tests/id:000481,src:000000,op:arith8,pos:169,val:+19,+cov
diff --git a/src/mint/afl-tests/id:000481,src:000000,op:arith8,pos:315,val:-19,+cov b/src/exchange/afl-tests/id:000481,src:000000,op:arith8,pos:315,val:-19,+cov
index a91fce20d..a91fce20d 100644
--- a/src/mint/afl-tests/id:000481,src:000000,op:arith8,pos:315,val:-19,+cov
+++ b/src/exchange/afl-tests/id:000481,src:000000,op:arith8,pos:315,val:-19,+cov
diff --git a/src/mint/afl-tests/id:000482,src:000000,op:arith8,pos:172,val:-3,+cov b/src/exchange/afl-tests/id:000482,src:000000,op:arith8,pos:172,val:-3,+cov
index 20a536e0f..20a536e0f 100644
--- a/src/mint/afl-tests/id:000482,src:000000,op:arith8,pos:172,val:-3,+cov
+++ b/src/exchange/afl-tests/id:000482,src:000000,op:arith8,pos:172,val:-3,+cov
diff --git a/src/mint/afl-tests/id:000482,src:000000,op:arith8,pos:315,val:-29,+cov b/src/exchange/afl-tests/id:000482,src:000000,op:arith8,pos:315,val:-29,+cov
index 4c75418da..4c75418da 100644
--- a/src/mint/afl-tests/id:000482,src:000000,op:arith8,pos:315,val:-29,+cov
+++ b/src/exchange/afl-tests/id:000482,src:000000,op:arith8,pos:315,val:-29,+cov
diff --git a/src/mint/afl-tests/id:000483,src:000000,op:arith8,pos:172,val:-33,+cov b/src/exchange/afl-tests/id:000483,src:000000,op:arith8,pos:172,val:-33,+cov
index 69ae6a5bb..69ae6a5bb 100644
--- a/src/mint/afl-tests/id:000483,src:000000,op:arith8,pos:172,val:-33,+cov
+++ b/src/exchange/afl-tests/id:000483,src:000000,op:arith8,pos:172,val:-33,+cov
diff --git a/src/mint/afl-tests/id:000483,src:000000,op:arith8,pos:316,val:+14,+cov b/src/exchange/afl-tests/id:000483,src:000000,op:arith8,pos:316,val:+14,+cov
index 435df94f5..435df94f5 100644
--- a/src/mint/afl-tests/id:000483,src:000000,op:arith8,pos:316,val:+14,+cov
+++ b/src/exchange/afl-tests/id:000483,src:000000,op:arith8,pos:316,val:+14,+cov
diff --git a/src/mint/afl-tests/id:000484,src:000000,op:arith8,pos:175,val:+20,+cov b/src/exchange/afl-tests/id:000484,src:000000,op:arith8,pos:175,val:+20,+cov
index a8bc9137c..a8bc9137c 100644
--- a/src/mint/afl-tests/id:000484,src:000000,op:arith8,pos:175,val:+20,+cov
+++ b/src/exchange/afl-tests/id:000484,src:000000,op:arith8,pos:175,val:+20,+cov
diff --git a/src/mint/afl-tests/id:000484,src:000000,op:arith8,pos:316,val:+17,+cov b/src/exchange/afl-tests/id:000484,src:000000,op:arith8,pos:316,val:+17,+cov
index 1982395ae..1982395ae 100644
--- a/src/mint/afl-tests/id:000484,src:000000,op:arith8,pos:316,val:+17,+cov
+++ b/src/exchange/afl-tests/id:000484,src:000000,op:arith8,pos:316,val:+17,+cov
diff --git a/src/mint/afl-tests/id:000485,src:000000,op:arith8,pos:176,val:+7,+cov b/src/exchange/afl-tests/id:000485,src:000000,op:arith8,pos:176,val:+7,+cov
index 223007cc6..223007cc6 100644
--- a/src/mint/afl-tests/id:000485,src:000000,op:arith8,pos:176,val:+7,+cov
+++ b/src/exchange/afl-tests/id:000485,src:000000,op:arith8,pos:176,val:+7,+cov
diff --git a/src/mint/afl-tests/id:000485,src:000000,op:arith8,pos:316,val:-23,+cov b/src/exchange/afl-tests/id:000485,src:000000,op:arith8,pos:316,val:-23,+cov
index 4c8cda9c1..4c8cda9c1 100644
--- a/src/mint/afl-tests/id:000485,src:000000,op:arith8,pos:316,val:-23,+cov
+++ b/src/exchange/afl-tests/id:000485,src:000000,op:arith8,pos:316,val:-23,+cov
diff --git a/src/mint/afl-tests/id:000486,src:000000,op:arith8,pos:176,val:-28,+cov b/src/exchange/afl-tests/id:000486,src:000000,op:arith8,pos:176,val:-28,+cov
index 7fbb8ba3a..7fbb8ba3a 100644
--- a/src/mint/afl-tests/id:000486,src:000000,op:arith8,pos:176,val:-28,+cov
+++ b/src/exchange/afl-tests/id:000486,src:000000,op:arith8,pos:176,val:-28,+cov
diff --git a/src/mint/afl-tests/id:000486,src:000000,op:arith8,pos:317,val:-30,+cov b/src/exchange/afl-tests/id:000486,src:000000,op:arith8,pos:317,val:-30,+cov
index 7f749ef56..7f749ef56 100644
--- a/src/mint/afl-tests/id:000486,src:000000,op:arith8,pos:317,val:-30,+cov
+++ b/src/exchange/afl-tests/id:000486,src:000000,op:arith8,pos:317,val:-30,+cov
diff --git a/src/mint/afl-tests/id:000487,src:000000,op:arith8,pos:177,val:+11,+cov b/src/exchange/afl-tests/id:000487,src:000000,op:arith8,pos:177,val:+11,+cov
index a7255c135..a7255c135 100644
--- a/src/mint/afl-tests/id:000487,src:000000,op:arith8,pos:177,val:+11,+cov
+++ b/src/exchange/afl-tests/id:000487,src:000000,op:arith8,pos:177,val:+11,+cov
diff --git a/src/mint/afl-tests/id:000487,src:000000,op:arith8,pos:319,val:-7,+cov b/src/exchange/afl-tests/id:000487,src:000000,op:arith8,pos:319,val:-7,+cov
index 09cc326d0..09cc326d0 100644
--- a/src/mint/afl-tests/id:000487,src:000000,op:arith8,pos:319,val:-7,+cov
+++ b/src/exchange/afl-tests/id:000487,src:000000,op:arith8,pos:319,val:-7,+cov
diff --git a/src/mint/afl-tests/id:000488,src:000000,op:arith8,pos:177,val:+17,+cov b/src/exchange/afl-tests/id:000488,src:000000,op:arith8,pos:177,val:+17,+cov
index 11f42ae9e..11f42ae9e 100644
--- a/src/mint/afl-tests/id:000488,src:000000,op:arith8,pos:177,val:+17,+cov
+++ b/src/exchange/afl-tests/id:000488,src:000000,op:arith8,pos:177,val:+17,+cov
diff --git a/src/mint/afl-tests/id:000488,src:000000,op:arith8,pos:319,val:+9,+cov b/src/exchange/afl-tests/id:000488,src:000000,op:arith8,pos:319,val:+9,+cov
index e4c0caf88..e4c0caf88 100644
--- a/src/mint/afl-tests/id:000488,src:000000,op:arith8,pos:319,val:+9,+cov
+++ b/src/exchange/afl-tests/id:000488,src:000000,op:arith8,pos:319,val:+9,+cov
diff --git a/src/mint/afl-tests/id:000489,src:000000,op:arith8,pos:177,val:+22,+cov b/src/exchange/afl-tests/id:000489,src:000000,op:arith8,pos:177,val:+22,+cov
index f59556be3..f59556be3 100644
--- a/src/mint/afl-tests/id:000489,src:000000,op:arith8,pos:177,val:+22,+cov
+++ b/src/exchange/afl-tests/id:000489,src:000000,op:arith8,pos:177,val:+22,+cov
diff --git a/src/mint/afl-tests/id:000489,src:000000,op:arith8,pos:320,val:-7,+cov b/src/exchange/afl-tests/id:000489,src:000000,op:arith8,pos:320,val:-7,+cov
index ee9ea63c0..ee9ea63c0 100644
--- a/src/mint/afl-tests/id:000489,src:000000,op:arith8,pos:320,val:-7,+cov
+++ b/src/exchange/afl-tests/id:000489,src:000000,op:arith8,pos:320,val:-7,+cov
diff --git a/src/mint/afl-tests/id:000490,src:000000,op:arith8,pos:178,val:-5,+cov b/src/exchange/afl-tests/id:000490,src:000000,op:arith8,pos:178,val:-5,+cov
index 767c0c043..767c0c043 100644
--- a/src/mint/afl-tests/id:000490,src:000000,op:arith8,pos:178,val:-5,+cov
+++ b/src/exchange/afl-tests/id:000490,src:000000,op:arith8,pos:178,val:-5,+cov
diff --git a/src/mint/afl-tests/id:000490,src:000000,op:arith8,pos:320,val:-25,+cov b/src/exchange/afl-tests/id:000490,src:000000,op:arith8,pos:320,val:-25,+cov
index 12f1566f3..12f1566f3 100644
--- a/src/mint/afl-tests/id:000490,src:000000,op:arith8,pos:320,val:-25,+cov
+++ b/src/exchange/afl-tests/id:000490,src:000000,op:arith8,pos:320,val:-25,+cov
diff --git a/src/mint/afl-tests/id:000491,src:000000,op:arith8,pos:178,val:+23,+cov b/src/exchange/afl-tests/id:000491,src:000000,op:arith8,pos:178,val:+23,+cov
index 699f2d607..699f2d607 100644
--- a/src/mint/afl-tests/id:000491,src:000000,op:arith8,pos:178,val:+23,+cov
+++ b/src/exchange/afl-tests/id:000491,src:000000,op:arith8,pos:178,val:+23,+cov
diff --git a/src/mint/afl-tests/id:000491,src:000000,op:arith8,pos:321,val:+11,+cov b/src/exchange/afl-tests/id:000491,src:000000,op:arith8,pos:321,val:+11,+cov
index b9ed1db61..b9ed1db61 100644
--- a/src/mint/afl-tests/id:000491,src:000000,op:arith8,pos:321,val:+11,+cov
+++ b/src/exchange/afl-tests/id:000491,src:000000,op:arith8,pos:321,val:+11,+cov
diff --git a/src/mint/afl-tests/id:000492,src:000000,op:arith8,pos:181,val:-12,+cov b/src/exchange/afl-tests/id:000492,src:000000,op:arith8,pos:181,val:-12,+cov
index 5ad7d66e7..5ad7d66e7 100644
--- a/src/mint/afl-tests/id:000492,src:000000,op:arith8,pos:181,val:-12,+cov
+++ b/src/exchange/afl-tests/id:000492,src:000000,op:arith8,pos:181,val:-12,+cov
diff --git a/src/mint/afl-tests/id:000492,src:000000,op:arith8,pos:321,val:-24,+cov b/src/exchange/afl-tests/id:000492,src:000000,op:arith8,pos:321,val:-24,+cov
index 5aed71dcb..5aed71dcb 100644
--- a/src/mint/afl-tests/id:000492,src:000000,op:arith8,pos:321,val:-24,+cov
+++ b/src/exchange/afl-tests/id:000492,src:000000,op:arith8,pos:321,val:-24,+cov
diff --git a/src/mint/afl-tests/id:000493,src:000000,op:arith8,pos:182,val:-15,+cov b/src/exchange/afl-tests/id:000493,src:000000,op:arith8,pos:182,val:-15,+cov
index 06dee424f..06dee424f 100644
--- a/src/mint/afl-tests/id:000493,src:000000,op:arith8,pos:182,val:-15,+cov
+++ b/src/exchange/afl-tests/id:000493,src:000000,op:arith8,pos:182,val:-15,+cov
diff --git a/src/mint/afl-tests/id:000493,src:000000,op:arith8,pos:322,val:-21,+cov b/src/exchange/afl-tests/id:000493,src:000000,op:arith8,pos:322,val:-21,+cov
index 555f46ae8..555f46ae8 100644
--- a/src/mint/afl-tests/id:000493,src:000000,op:arith8,pos:322,val:-21,+cov
+++ b/src/exchange/afl-tests/id:000493,src:000000,op:arith8,pos:322,val:-21,+cov
diff --git a/src/mint/afl-tests/id:000494,src:000000,op:arith8,pos:182,val:+22,+cov b/src/exchange/afl-tests/id:000494,src:000000,op:arith8,pos:182,val:+22,+cov
index 2089dffdd..2089dffdd 100644
--- a/src/mint/afl-tests/id:000494,src:000000,op:arith8,pos:182,val:+22,+cov
+++ b/src/exchange/afl-tests/id:000494,src:000000,op:arith8,pos:182,val:+22,+cov
diff --git a/src/mint/afl-tests/id:000494,src:000000,op:arith8,pos:326,val:-20,+cov b/src/exchange/afl-tests/id:000494,src:000000,op:arith8,pos:326,val:-20,+cov
index cc6db3b4b..cc6db3b4b 100644
--- a/src/mint/afl-tests/id:000494,src:000000,op:arith8,pos:326,val:-20,+cov
+++ b/src/exchange/afl-tests/id:000494,src:000000,op:arith8,pos:326,val:-20,+cov
diff --git a/src/mint/afl-tests/id:000495,src:000000,op:arith8,pos:183,val:-11 b/src/exchange/afl-tests/id:000495,src:000000,op:arith8,pos:183,val:-11
index 25d10dc00..25d10dc00 100644
--- a/src/mint/afl-tests/id:000495,src:000000,op:arith8,pos:183,val:-11
+++ b/src/exchange/afl-tests/id:000495,src:000000,op:arith8,pos:183,val:-11
diff --git a/src/mint/afl-tests/id:000495,src:000000,op:arith8,pos:328,val:+27,+cov b/src/exchange/afl-tests/id:000495,src:000000,op:arith8,pos:328,val:+27,+cov
index ecb03d5da..ecb03d5da 100644
--- a/src/mint/afl-tests/id:000495,src:000000,op:arith8,pos:328,val:+27,+cov
+++ b/src/exchange/afl-tests/id:000495,src:000000,op:arith8,pos:328,val:+27,+cov
diff --git a/src/mint/afl-tests/id:000496,src:000000,op:arith8,pos:183,val:+15,+cov b/src/exchange/afl-tests/id:000496,src:000000,op:arith8,pos:183,val:+15,+cov
index 6f40bcc02..6f40bcc02 100644
--- a/src/mint/afl-tests/id:000496,src:000000,op:arith8,pos:183,val:+15,+cov
+++ b/src/exchange/afl-tests/id:000496,src:000000,op:arith8,pos:183,val:+15,+cov
diff --git a/src/mint/afl-tests/id:000496,src:000000,op:arith8,pos:328,val:-27,+cov b/src/exchange/afl-tests/id:000496,src:000000,op:arith8,pos:328,val:-27,+cov
index 7afc12382..7afc12382 100644
--- a/src/mint/afl-tests/id:000496,src:000000,op:arith8,pos:328,val:-27,+cov
+++ b/src/exchange/afl-tests/id:000496,src:000000,op:arith8,pos:328,val:-27,+cov
diff --git a/src/mint/afl-tests/id:000497,src:000000,op:arith8,pos:184,val:-14,+cov b/src/exchange/afl-tests/id:000497,src:000000,op:arith8,pos:184,val:-14,+cov
index 3524e63c0..3524e63c0 100644
--- a/src/mint/afl-tests/id:000497,src:000000,op:arith8,pos:184,val:-14,+cov
+++ b/src/exchange/afl-tests/id:000497,src:000000,op:arith8,pos:184,val:-14,+cov
diff --git a/src/mint/afl-tests/id:000497,src:000000,op:arith8,pos:329,val:+5,+cov b/src/exchange/afl-tests/id:000497,src:000000,op:arith8,pos:329,val:+5,+cov
index c3283926f..c3283926f 100644
--- a/src/mint/afl-tests/id:000497,src:000000,op:arith8,pos:329,val:+5,+cov
+++ b/src/exchange/afl-tests/id:000497,src:000000,op:arith8,pos:329,val:+5,+cov
diff --git a/src/mint/afl-tests/id:000498,src:000000,op:arith8,pos:184,val:+33,+cov b/src/exchange/afl-tests/id:000498,src:000000,op:arith8,pos:184,val:+33,+cov
index 837a3a2b0..837a3a2b0 100644
--- a/src/mint/afl-tests/id:000498,src:000000,op:arith8,pos:184,val:+33,+cov
+++ b/src/exchange/afl-tests/id:000498,src:000000,op:arith8,pos:184,val:+33,+cov
diff --git a/src/mint/afl-tests/id:000498,src:000000,op:arith8,pos:329,val:-24,+cov b/src/exchange/afl-tests/id:000498,src:000000,op:arith8,pos:329,val:-24,+cov
index cc69a5981..cc69a5981 100644
--- a/src/mint/afl-tests/id:000498,src:000000,op:arith8,pos:329,val:-24,+cov
+++ b/src/exchange/afl-tests/id:000498,src:000000,op:arith8,pos:329,val:-24,+cov
diff --git a/src/mint/afl-tests/id:000499,src:000000,op:arith8,pos:184,val:-35,+cov b/src/exchange/afl-tests/id:000499,src:000000,op:arith8,pos:184,val:-35,+cov
index c5469e461..c5469e461 100644
--- a/src/mint/afl-tests/id:000499,src:000000,op:arith8,pos:184,val:-35,+cov
+++ b/src/exchange/afl-tests/id:000499,src:000000,op:arith8,pos:184,val:-35,+cov
diff --git a/src/mint/afl-tests/id:000499,src:000000,op:arith8,pos:330,val:-3,+cov b/src/exchange/afl-tests/id:000499,src:000000,op:arith8,pos:330,val:-3,+cov
index 2a7d42a57..2a7d42a57 100644
--- a/src/mint/afl-tests/id:000499,src:000000,op:arith8,pos:330,val:-3,+cov
+++ b/src/exchange/afl-tests/id:000499,src:000000,op:arith8,pos:330,val:-3,+cov
diff --git a/src/mint/afl-tests/id:000500,src:000000,op:arith8,pos:185,val:+3,+cov b/src/exchange/afl-tests/id:000500,src:000000,op:arith8,pos:185,val:+3,+cov
index 0d75e538d..0d75e538d 100644
--- a/src/mint/afl-tests/id:000500,src:000000,op:arith8,pos:185,val:+3,+cov
+++ b/src/exchange/afl-tests/id:000500,src:000000,op:arith8,pos:185,val:+3,+cov
diff --git a/src/mint/afl-tests/id:000500,src:000000,op:arith8,pos:331,val:-14,+cov b/src/exchange/afl-tests/id:000500,src:000000,op:arith8,pos:331,val:-14,+cov
index 05d9c2e61..05d9c2e61 100644
--- a/src/mint/afl-tests/id:000500,src:000000,op:arith8,pos:331,val:-14,+cov
+++ b/src/exchange/afl-tests/id:000500,src:000000,op:arith8,pos:331,val:-14,+cov
diff --git a/src/mint/afl-tests/id:000501,src:000000,op:arith8,pos:185,val:+7,+cov b/src/exchange/afl-tests/id:000501,src:000000,op:arith8,pos:185,val:+7,+cov
index bfd66f575..bfd66f575 100644
--- a/src/mint/afl-tests/id:000501,src:000000,op:arith8,pos:185,val:+7,+cov
+++ b/src/exchange/afl-tests/id:000501,src:000000,op:arith8,pos:185,val:+7,+cov
diff --git a/src/mint/afl-tests/id:000501,src:000000,op:arith8,pos:332,val:-15,+cov b/src/exchange/afl-tests/id:000501,src:000000,op:arith8,pos:332,val:-15,+cov
index e25945929..e25945929 100644
--- a/src/mint/afl-tests/id:000501,src:000000,op:arith8,pos:332,val:-15,+cov
+++ b/src/exchange/afl-tests/id:000501,src:000000,op:arith8,pos:332,val:-15,+cov
diff --git a/src/mint/afl-tests/id:000502,src:000000,op:arith16,pos:33,val:-12,+cov b/src/exchange/afl-tests/id:000502,src:000000,op:arith16,pos:33,val:-12,+cov
index 4cc8f8d31..4cc8f8d31 100644
--- a/src/mint/afl-tests/id:000502,src:000000,op:arith16,pos:33,val:-12,+cov
+++ b/src/exchange/afl-tests/id:000502,src:000000,op:arith16,pos:33,val:-12,+cov
diff --git a/src/mint/afl-tests/id:000502,src:000000,op:arith8,pos:192,val:+9,+cov b/src/exchange/afl-tests/id:000502,src:000000,op:arith8,pos:192,val:+9,+cov
index e06cf9443..e06cf9443 100644
--- a/src/mint/afl-tests/id:000502,src:000000,op:arith8,pos:192,val:+9,+cov
+++ b/src/exchange/afl-tests/id:000502,src:000000,op:arith8,pos:192,val:+9,+cov
diff --git a/src/mint/afl-tests/id:000503,src:000000,op:arith16,pos:65,val:be:-27,+cov b/src/exchange/afl-tests/id:000503,src:000000,op:arith16,pos:65,val:be:-27,+cov
index 5a3f0f67c..5a3f0f67c 100644
--- a/src/mint/afl-tests/id:000503,src:000000,op:arith16,pos:65,val:be:-27,+cov
+++ b/src/exchange/afl-tests/id:000503,src:000000,op:arith16,pos:65,val:be:-27,+cov
diff --git a/src/mint/afl-tests/id:000503,src:000000,op:arith8,pos:237,val:-26,+cov b/src/exchange/afl-tests/id:000503,src:000000,op:arith8,pos:237,val:-26,+cov
index 44551d5f3..44551d5f3 100644
--- a/src/mint/afl-tests/id:000503,src:000000,op:arith8,pos:237,val:-26,+cov
+++ b/src/exchange/afl-tests/id:000503,src:000000,op:arith8,pos:237,val:-26,+cov
diff --git a/src/mint/afl-tests/id:000504,src:000000,op:arith8,pos:238,val:+5,+cov b/src/exchange/afl-tests/id:000504,src:000000,op:arith8,pos:238,val:+5,+cov
index adc521b02..adc521b02 100644
--- a/src/mint/afl-tests/id:000504,src:000000,op:arith8,pos:238,val:+5,+cov
+++ b/src/exchange/afl-tests/id:000504,src:000000,op:arith8,pos:238,val:+5,+cov
diff --git a/src/mint/afl-tests/id:000504,src:000000,op:int8,pos:6,val:+0 b/src/exchange/afl-tests/id:000504,src:000000,op:int8,pos:6,val:+0
index 1617639fa..1617639fa 100644
--- a/src/mint/afl-tests/id:000504,src:000000,op:int8,pos:6,val:+0
+++ b/src/exchange/afl-tests/id:000504,src:000000,op:int8,pos:6,val:+0
diff --git a/src/mint/afl-tests/id:000505,src:000000,op:arith8,pos:241,val:+7,+cov b/src/exchange/afl-tests/id:000505,src:000000,op:arith8,pos:241,val:+7,+cov
index d8d8f1c3a..d8d8f1c3a 100644
--- a/src/mint/afl-tests/id:000505,src:000000,op:arith8,pos:241,val:+7,+cov
+++ b/src/exchange/afl-tests/id:000505,src:000000,op:arith8,pos:241,val:+7,+cov
diff --git a/src/mint/afl-tests/id:000505,src:000000,op:int8,pos:7,val:+0 b/src/exchange/afl-tests/id:000505,src:000000,op:int8,pos:7,val:+0
index bf79da717..bf79da717 100644
--- a/src/mint/afl-tests/id:000505,src:000000,op:int8,pos:7,val:+0
+++ b/src/exchange/afl-tests/id:000505,src:000000,op:int8,pos:7,val:+0
diff --git a/src/mint/afl-tests/id:000506,src:000000,op:arith8,pos:268,val:-4,+cov b/src/exchange/afl-tests/id:000506,src:000000,op:arith8,pos:268,val:-4,+cov
index cd62df7e1..cd62df7e1 100644
--- a/src/mint/afl-tests/id:000506,src:000000,op:arith8,pos:268,val:-4,+cov
+++ b/src/exchange/afl-tests/id:000506,src:000000,op:arith8,pos:268,val:-4,+cov
diff --git a/src/mint/afl-tests/id:000506,src:000000,op:int8,pos:9,val:+0 b/src/exchange/afl-tests/id:000506,src:000000,op:int8,pos:9,val:+0
index 3bd6a1d9b..3bd6a1d9b 100644
--- a/src/mint/afl-tests/id:000506,src:000000,op:int8,pos:9,val:+0
+++ b/src/exchange/afl-tests/id:000506,src:000000,op:int8,pos:9,val:+0
diff --git a/src/mint/afl-tests/id:000507,src:000000,op:arith8,pos:269,val:+19,+cov b/src/exchange/afl-tests/id:000507,src:000000,op:arith8,pos:269,val:+19,+cov
index 3af908cef..3af908cef 100644
--- a/src/mint/afl-tests/id:000507,src:000000,op:arith8,pos:269,val:+19,+cov
+++ b/src/exchange/afl-tests/id:000507,src:000000,op:arith8,pos:269,val:+19,+cov
diff --git a/src/mint/afl-tests/id:000507,src:000000,op:int8,pos:26,val:+32,+cov b/src/exchange/afl-tests/id:000507,src:000000,op:int8,pos:26,val:+32,+cov
index 2bd400350..2bd400350 100644
--- a/src/mint/afl-tests/id:000507,src:000000,op:int8,pos:26,val:+32,+cov
+++ b/src/exchange/afl-tests/id:000507,src:000000,op:int8,pos:26,val:+32,+cov
diff --git a/src/mint/afl-tests/id:000508,src:000000,op:arith8,pos:271,val:-12,+cov b/src/exchange/afl-tests/id:000508,src:000000,op:arith8,pos:271,val:-12,+cov
index 984918f2b..984918f2b 100644
--- a/src/mint/afl-tests/id:000508,src:000000,op:arith8,pos:271,val:-12,+cov
+++ b/src/exchange/afl-tests/id:000508,src:000000,op:arith8,pos:271,val:-12,+cov
diff --git a/src/mint/afl-tests/id:000508,src:000000,op:int8,pos:27,val:+127,+cov b/src/exchange/afl-tests/id:000508,src:000000,op:int8,pos:27,val:+127,+cov
index 1b108c548..1b108c548 100644
--- a/src/mint/afl-tests/id:000508,src:000000,op:int8,pos:27,val:+127,+cov
+++ b/src/exchange/afl-tests/id:000508,src:000000,op:int8,pos:27,val:+127,+cov
diff --git a/src/mint/afl-tests/id:000509,src:000000,op:arith8,pos:272,val:+7,+cov b/src/exchange/afl-tests/id:000509,src:000000,op:arith8,pos:272,val:+7,+cov
index 84afe05df..84afe05df 100644
--- a/src/mint/afl-tests/id:000509,src:000000,op:arith8,pos:272,val:+7,+cov
+++ b/src/exchange/afl-tests/id:000509,src:000000,op:arith8,pos:272,val:+7,+cov
diff --git a/src/mint/afl-tests/id:000509,src:000000,op:int8,pos:34,val:+0,+cov b/src/exchange/afl-tests/id:000509,src:000000,op:int8,pos:34,val:+0,+cov
index b44840248..b44840248 100644
--- a/src/mint/afl-tests/id:000509,src:000000,op:int8,pos:34,val:+0,+cov
+++ b/src/exchange/afl-tests/id:000509,src:000000,op:int8,pos:34,val:+0,+cov
diff --git a/src/mint/afl-tests/id:000510,src:000000,op:arith8,pos:274,val:+11,+cov b/src/exchange/afl-tests/id:000510,src:000000,op:arith8,pos:274,val:+11,+cov
index 63916d85a..63916d85a 100644
--- a/src/mint/afl-tests/id:000510,src:000000,op:arith8,pos:274,val:+11,+cov
+++ b/src/exchange/afl-tests/id:000510,src:000000,op:arith8,pos:274,val:+11,+cov
diff --git a/src/mint/afl-tests/id:000510,src:000000,op:int8,pos:40,val:+0,+cov b/src/exchange/afl-tests/id:000510,src:000000,op:int8,pos:40,val:+0,+cov
index 1753c57a2..1753c57a2 100644
--- a/src/mint/afl-tests/id:000510,src:000000,op:int8,pos:40,val:+0,+cov
+++ b/src/exchange/afl-tests/id:000510,src:000000,op:int8,pos:40,val:+0,+cov
diff --git a/src/mint/afl-tests/id:000511,src:000000,op:arith8,pos:274,val:+25,+cov b/src/exchange/afl-tests/id:000511,src:000000,op:arith8,pos:274,val:+25,+cov
index f2d727b45..f2d727b45 100644
--- a/src/mint/afl-tests/id:000511,src:000000,op:arith8,pos:274,val:+25,+cov
+++ b/src/exchange/afl-tests/id:000511,src:000000,op:arith8,pos:274,val:+25,+cov
diff --git a/src/mint/afl-tests/id:000511,src:000000,op:int8,pos:40,val:+32 b/src/exchange/afl-tests/id:000511,src:000000,op:int8,pos:40,val:+32
index 478612835..478612835 100644
--- a/src/mint/afl-tests/id:000511,src:000000,op:int8,pos:40,val:+32
+++ b/src/exchange/afl-tests/id:000511,src:000000,op:int8,pos:40,val:+32
diff --git a/src/mint/afl-tests/id:000512,src:000000,op:arith8,pos:275,val:-11,+cov b/src/exchange/afl-tests/id:000512,src:000000,op:arith8,pos:275,val:-11,+cov
index ffb3010f1..ffb3010f1 100644
--- a/src/mint/afl-tests/id:000512,src:000000,op:arith8,pos:275,val:-11,+cov
+++ b/src/exchange/afl-tests/id:000512,src:000000,op:arith8,pos:275,val:-11,+cov
diff --git a/src/mint/afl-tests/id:000512,src:000000,op:int8,pos:46,val:+1,+cov b/src/exchange/afl-tests/id:000512,src:000000,op:int8,pos:46,val:+1,+cov
index ba5eeaa7d..ba5eeaa7d 100644
--- a/src/mint/afl-tests/id:000512,src:000000,op:int8,pos:46,val:+1,+cov
+++ b/src/exchange/afl-tests/id:000512,src:000000,op:int8,pos:46,val:+1,+cov
diff --git a/src/mint/afl-tests/id:000513,src:000000,op:arith8,pos:275,val:-12,+cov b/src/exchange/afl-tests/id:000513,src:000000,op:arith8,pos:275,val:-12,+cov
index b23a69c22..b23a69c22 100644
--- a/src/mint/afl-tests/id:000513,src:000000,op:arith8,pos:275,val:-12,+cov
+++ b/src/exchange/afl-tests/id:000513,src:000000,op:arith8,pos:275,val:-12,+cov
diff --git a/src/mint/afl-tests/id:000513,src:000000,op:int8,pos:51,val:+1 b/src/exchange/afl-tests/id:000513,src:000000,op:int8,pos:51,val:+1
index d5b552421..d5b552421 100644
--- a/src/mint/afl-tests/id:000513,src:000000,op:int8,pos:51,val:+1
+++ b/src/exchange/afl-tests/id:000513,src:000000,op:int8,pos:51,val:+1
diff --git a/src/mint/afl-tests/id:000514,src:000000,op:arith8,pos:275,val:+27,+cov b/src/exchange/afl-tests/id:000514,src:000000,op:arith8,pos:275,val:+27,+cov
index f85ed882e..f85ed882e 100644
--- a/src/mint/afl-tests/id:000514,src:000000,op:arith8,pos:275,val:+27,+cov
+++ b/src/exchange/afl-tests/id:000514,src:000000,op:arith8,pos:275,val:+27,+cov
diff --git a/src/mint/afl-tests/id:000514,src:000000,op:int8,pos:52,val:-128,+cov b/src/exchange/afl-tests/id:000514,src:000000,op:int8,pos:52,val:-128,+cov
index 93902d9a7..93902d9a7 100644
--- a/src/mint/afl-tests/id:000514,src:000000,op:int8,pos:52,val:-128,+cov
+++ b/src/exchange/afl-tests/id:000514,src:000000,op:int8,pos:52,val:-128,+cov
diff --git a/src/mint/afl-tests/id:000515,src:000000,op:arith8,pos:277,val:-10,+cov b/src/exchange/afl-tests/id:000515,src:000000,op:arith8,pos:277,val:-10,+cov
index 52881ecd8..52881ecd8 100644
--- a/src/mint/afl-tests/id:000515,src:000000,op:arith8,pos:277,val:-10,+cov
+++ b/src/exchange/afl-tests/id:000515,src:000000,op:arith8,pos:277,val:-10,+cov
diff --git a/src/mint/afl-tests/id:000515,src:000000,op:int8,pos:53,val:-1,+cov b/src/exchange/afl-tests/id:000515,src:000000,op:int8,pos:53,val:-1,+cov
index dd38e8b23..dd38e8b23 100644
--- a/src/mint/afl-tests/id:000515,src:000000,op:int8,pos:53,val:-1,+cov
+++ b/src/exchange/afl-tests/id:000515,src:000000,op:int8,pos:53,val:-1,+cov
diff --git a/src/mint/afl-tests/id:000516,src:000000,op:arith8,pos:277,val:+35,+cov b/src/exchange/afl-tests/id:000516,src:000000,op:arith8,pos:277,val:+35,+cov
index 5ba54d7fd..5ba54d7fd 100644
--- a/src/mint/afl-tests/id:000516,src:000000,op:arith8,pos:277,val:+35,+cov
+++ b/src/exchange/afl-tests/id:000516,src:000000,op:arith8,pos:277,val:+35,+cov
diff --git a/src/mint/afl-tests/id:000516,src:000000,op:int8,pos:69,val:+32,+cov b/src/exchange/afl-tests/id:000516,src:000000,op:int8,pos:69,val:+32,+cov
index b37e6ccf8..b37e6ccf8 100644
--- a/src/mint/afl-tests/id:000516,src:000000,op:int8,pos:69,val:+32,+cov
+++ b/src/exchange/afl-tests/id:000516,src:000000,op:int8,pos:69,val:+32,+cov
diff --git a/src/mint/afl-tests/id:000517,src:000000,op:arith8,pos:279,val:+28,+cov b/src/exchange/afl-tests/id:000517,src:000000,op:arith8,pos:279,val:+28,+cov
index 22434630a..22434630a 100644
--- a/src/mint/afl-tests/id:000517,src:000000,op:arith8,pos:279,val:+28,+cov
+++ b/src/exchange/afl-tests/id:000517,src:000000,op:arith8,pos:279,val:+28,+cov
diff --git a/src/mint/afl-tests/id:000517,src:000000,op:int8,pos:70,val:+32,+cov b/src/exchange/afl-tests/id:000517,src:000000,op:int8,pos:70,val:+32,+cov
index fb2181584..fb2181584 100644
--- a/src/mint/afl-tests/id:000517,src:000000,op:int8,pos:70,val:+32,+cov
+++ b/src/exchange/afl-tests/id:000517,src:000000,op:int8,pos:70,val:+32,+cov
diff --git a/src/mint/afl-tests/id:000518,src:000000,op:arith8,pos:290,val:-28,+cov b/src/exchange/afl-tests/id:000518,src:000000,op:arith8,pos:290,val:-28,+cov
index 5d9d1b1f0..5d9d1b1f0 100644
--- a/src/mint/afl-tests/id:000518,src:000000,op:arith8,pos:290,val:-28,+cov
+++ b/src/exchange/afl-tests/id:000518,src:000000,op:arith8,pos:290,val:-28,+cov
diff --git a/src/mint/afl-tests/id:000518,src:000000,op:int8,pos:71,val:+64,+cov b/src/exchange/afl-tests/id:000518,src:000000,op:int8,pos:71,val:+64,+cov
index 9973a3a51..9973a3a51 100644
--- a/src/mint/afl-tests/id:000518,src:000000,op:int8,pos:71,val:+64,+cov
+++ b/src/exchange/afl-tests/id:000518,src:000000,op:int8,pos:71,val:+64,+cov
diff --git a/src/mint/afl-tests/id:000519,src:000000,op:arith8,pos:305,val:-3,+cov b/src/exchange/afl-tests/id:000519,src:000000,op:arith8,pos:305,val:-3,+cov
index 95d8c6cbd..95d8c6cbd 100644
--- a/src/mint/afl-tests/id:000519,src:000000,op:arith8,pos:305,val:-3,+cov
+++ b/src/exchange/afl-tests/id:000519,src:000000,op:arith8,pos:305,val:-3,+cov
diff --git a/src/mint/afl-tests/id:000519,src:000000,op:int8,pos:74,val:-1,+cov b/src/exchange/afl-tests/id:000519,src:000000,op:int8,pos:74,val:-1,+cov
index eaeb46aa7..eaeb46aa7 100644
--- a/src/mint/afl-tests/id:000519,src:000000,op:int8,pos:74,val:-1,+cov
+++ b/src/exchange/afl-tests/id:000519,src:000000,op:int8,pos:74,val:-1,+cov
diff --git a/src/mint/afl-tests/id:000520,src:000000,op:arith8,pos:306,val:+7,+cov b/src/exchange/afl-tests/id:000520,src:000000,op:arith8,pos:306,val:+7,+cov
index 33de1560e..33de1560e 100644
--- a/src/mint/afl-tests/id:000520,src:000000,op:arith8,pos:306,val:+7,+cov
+++ b/src/exchange/afl-tests/id:000520,src:000000,op:arith8,pos:306,val:+7,+cov
diff --git a/src/mint/afl-tests/id:000520,src:000000,op:int8,pos:115,val:+0,+cov b/src/exchange/afl-tests/id:000520,src:000000,op:int8,pos:115,val:+0,+cov
index fdb09920c..fdb09920c 100644
--- a/src/mint/afl-tests/id:000520,src:000000,op:int8,pos:115,val:+0,+cov
+++ b/src/exchange/afl-tests/id:000520,src:000000,op:int8,pos:115,val:+0,+cov
diff --git a/src/mint/afl-tests/id:000521,src:000000,op:arith8,pos:306,val:-12,+cov b/src/exchange/afl-tests/id:000521,src:000000,op:arith8,pos:306,val:-12,+cov
index 11cbf677b..11cbf677b 100644
--- a/src/mint/afl-tests/id:000521,src:000000,op:arith8,pos:306,val:-12,+cov
+++ b/src/exchange/afl-tests/id:000521,src:000000,op:arith8,pos:306,val:-12,+cov
diff --git a/src/mint/afl-tests/id:000521,src:000000,op:int8,pos:188,val:+1,+cov b/src/exchange/afl-tests/id:000521,src:000000,op:int8,pos:188,val:+1,+cov
index 215d414bf..215d414bf 100644
--- a/src/mint/afl-tests/id:000521,src:000000,op:int8,pos:188,val:+1,+cov
+++ b/src/exchange/afl-tests/id:000521,src:000000,op:int8,pos:188,val:+1,+cov
diff --git a/src/mint/afl-tests/id:000522,src:000000,op:arith8,pos:306,val:+20,+cov b/src/exchange/afl-tests/id:000522,src:000000,op:arith8,pos:306,val:+20,+cov
index 31fc87302..31fc87302 100644
--- a/src/mint/afl-tests/id:000522,src:000000,op:arith8,pos:306,val:+20,+cov
+++ b/src/exchange/afl-tests/id:000522,src:000000,op:arith8,pos:306,val:+20,+cov
diff --git a/src/mint/afl-tests/id:000522,src:000000,op:int8,pos:276,val:+100,+cov b/src/exchange/afl-tests/id:000522,src:000000,op:int8,pos:276,val:+100,+cov
index 1d58eb298..1d58eb298 100644
--- a/src/mint/afl-tests/id:000522,src:000000,op:int8,pos:276,val:+100,+cov
+++ b/src/exchange/afl-tests/id:000522,src:000000,op:int8,pos:276,val:+100,+cov
diff --git a/src/mint/afl-tests/id:000523,src:000000,op:arith8,pos:307,val:+13,+cov b/src/exchange/afl-tests/id:000523,src:000000,op:arith8,pos:307,val:+13,+cov
index f2156516a..f2156516a 100644
--- a/src/mint/afl-tests/id:000523,src:000000,op:arith8,pos:307,val:+13,+cov
+++ b/src/exchange/afl-tests/id:000523,src:000000,op:arith8,pos:307,val:+13,+cov
diff --git a/src/mint/afl-tests/id:000523,src:000000,op:int8,pos:307,val:+32,+cov b/src/exchange/afl-tests/id:000523,src:000000,op:int8,pos:307,val:+32,+cov
index a5eb0a938..a5eb0a938 100644
--- a/src/mint/afl-tests/id:000523,src:000000,op:int8,pos:307,val:+32,+cov
+++ b/src/exchange/afl-tests/id:000523,src:000000,op:int8,pos:307,val:+32,+cov
diff --git a/src/mint/afl-tests/id:000524,src:000000,op:arith8,pos:308,val:+19,+cov b/src/exchange/afl-tests/id:000524,src:000000,op:arith8,pos:308,val:+19,+cov
index 5b763e04c..5b763e04c 100644
--- a/src/mint/afl-tests/id:000524,src:000000,op:arith8,pos:308,val:+19,+cov
+++ b/src/exchange/afl-tests/id:000524,src:000000,op:arith8,pos:308,val:+19,+cov
diff --git a/src/mint/afl-tests/id:000524,src:000000,op:int8,pos:313,val:+64,+cov b/src/exchange/afl-tests/id:000524,src:000000,op:int8,pos:313,val:+64,+cov
index 6448809a0..6448809a0 100644
--- a/src/mint/afl-tests/id:000524,src:000000,op:int8,pos:313,val:+64,+cov
+++ b/src/exchange/afl-tests/id:000524,src:000000,op:int8,pos:313,val:+64,+cov
diff --git a/src/mint/afl-tests/id:000525,src:000000,op:arith8,pos:308,val:-27,+cov b/src/exchange/afl-tests/id:000525,src:000000,op:arith8,pos:308,val:-27,+cov
index 7ab902fb3..7ab902fb3 100644
--- a/src/mint/afl-tests/id:000525,src:000000,op:arith8,pos:308,val:-27,+cov
+++ b/src/exchange/afl-tests/id:000525,src:000000,op:arith8,pos:308,val:-27,+cov
diff --git a/src/mint/afl-tests/id:000525,src:000000,op:int8,pos:314,val:-1,+cov b/src/exchange/afl-tests/id:000525,src:000000,op:int8,pos:314,val:-1,+cov
index 33ac0ef2b..33ac0ef2b 100644
--- a/src/mint/afl-tests/id:000525,src:000000,op:int8,pos:314,val:-1,+cov
+++ b/src/exchange/afl-tests/id:000525,src:000000,op:int8,pos:314,val:-1,+cov
diff --git a/src/mint/afl-tests/id:000526,src:000000,op:arith8,pos:312,val:+3,+cov b/src/exchange/afl-tests/id:000526,src:000000,op:arith8,pos:312,val:+3,+cov
index 419f8d5e6..419f8d5e6 100644
--- a/src/mint/afl-tests/id:000526,src:000000,op:arith8,pos:312,val:+3,+cov
+++ b/src/exchange/afl-tests/id:000526,src:000000,op:arith8,pos:312,val:+3,+cov
diff --git a/src/mint/afl-tests/id:000526,src:000000,op:int8,pos:322,val:+32,+cov b/src/exchange/afl-tests/id:000526,src:000000,op:int8,pos:322,val:+32,+cov
index ec280ab06..ec280ab06 100644
--- a/src/mint/afl-tests/id:000526,src:000000,op:int8,pos:322,val:+32,+cov
+++ b/src/exchange/afl-tests/id:000526,src:000000,op:int8,pos:322,val:+32,+cov
diff --git a/src/mint/afl-tests/id:000527,src:000000,op:arith8,pos:312,val:+5,+cov b/src/exchange/afl-tests/id:000527,src:000000,op:arith8,pos:312,val:+5,+cov
index f9e66d758..f9e66d758 100644
--- a/src/mint/afl-tests/id:000527,src:000000,op:arith8,pos:312,val:+5,+cov
+++ b/src/exchange/afl-tests/id:000527,src:000000,op:arith8,pos:312,val:+5,+cov
diff --git a/src/mint/afl-tests/id:000527,src:000000,op:int16,pos:25,val:be:+100,+cov b/src/exchange/afl-tests/id:000527,src:000000,op:int16,pos:25,val:be:+100,+cov
index 384fad6ab..384fad6ab 100644
--- a/src/mint/afl-tests/id:000527,src:000000,op:int16,pos:25,val:be:+100,+cov
+++ b/src/exchange/afl-tests/id:000527,src:000000,op:int16,pos:25,val:be:+100,+cov
diff --git a/src/mint/afl-tests/id:000528,src:000000,op:arith8,pos:312,val:-11,+cov b/src/exchange/afl-tests/id:000528,src:000000,op:arith8,pos:312,val:-11,+cov
index c42a0a94f..c42a0a94f 100644
--- a/src/mint/afl-tests/id:000528,src:000000,op:arith8,pos:312,val:-11,+cov
+++ b/src/exchange/afl-tests/id:000528,src:000000,op:arith8,pos:312,val:-11,+cov
diff --git a/src/mint/afl-tests/id:000528,src:000000,op:int16,pos:29,val:-1,+cov b/src/exchange/afl-tests/id:000528,src:000000,op:int16,pos:29,val:-1,+cov
index 82b6ef639..82b6ef639 100644
--- a/src/mint/afl-tests/id:000528,src:000000,op:int16,pos:29,val:-1,+cov
+++ b/src/exchange/afl-tests/id:000528,src:000000,op:int16,pos:29,val:-1,+cov
diff --git a/src/mint/afl-tests/id:000529,src:000000,op:arith8,pos:313,val:-33,+cov b/src/exchange/afl-tests/id:000529,src:000000,op:arith8,pos:313,val:-33,+cov
index 054577779..054577779 100644
--- a/src/mint/afl-tests/id:000529,src:000000,op:arith8,pos:313,val:-33,+cov
+++ b/src/exchange/afl-tests/id:000529,src:000000,op:arith8,pos:313,val:-33,+cov
diff --git a/src/mint/afl-tests/id:000529,src:000000,op:int16,pos:32,val:+32767,+cov b/src/exchange/afl-tests/id:000529,src:000000,op:int16,pos:32,val:+32767,+cov
index a8e3abbe8..a8e3abbe8 100644
--- a/src/mint/afl-tests/id:000529,src:000000,op:int16,pos:32,val:+32767,+cov
+++ b/src/exchange/afl-tests/id:000529,src:000000,op:int16,pos:32,val:+32767,+cov
diff --git a/src/mint/afl-tests/id:000530,src:000000,op:arith8,pos:314,val:-3,+cov b/src/exchange/afl-tests/id:000530,src:000000,op:arith8,pos:314,val:-3,+cov
index db962f187..db962f187 100644
--- a/src/mint/afl-tests/id:000530,src:000000,op:arith8,pos:314,val:-3,+cov
+++ b/src/exchange/afl-tests/id:000530,src:000000,op:arith8,pos:314,val:-3,+cov
diff --git a/src/mint/afl-tests/id:000530,src:000000,op:int16,pos:41,val:-128,+cov b/src/exchange/afl-tests/id:000530,src:000000,op:int16,pos:41,val:-128,+cov
index e5c56d098..e5c56d098 100644
--- a/src/mint/afl-tests/id:000530,src:000000,op:int16,pos:41,val:-128,+cov
+++ b/src/exchange/afl-tests/id:000530,src:000000,op:int16,pos:41,val:-128,+cov
diff --git a/src/mint/afl-tests/id:000531,src:000000,op:arith8,pos:314,val:-25,+cov b/src/exchange/afl-tests/id:000531,src:000000,op:arith8,pos:314,val:-25,+cov
index 2160ca427..2160ca427 100644
--- a/src/mint/afl-tests/id:000531,src:000000,op:arith8,pos:314,val:-25,+cov
+++ b/src/exchange/afl-tests/id:000531,src:000000,op:arith8,pos:314,val:-25,+cov
diff --git a/src/mint/afl-tests/id:000531,src:000000,op:int16,pos:41,val:+32,+cov b/src/exchange/afl-tests/id:000531,src:000000,op:int16,pos:41,val:+32,+cov
index e645b00c9..e645b00c9 100644
--- a/src/mint/afl-tests/id:000531,src:000000,op:int16,pos:41,val:+32,+cov
+++ b/src/exchange/afl-tests/id:000531,src:000000,op:int16,pos:41,val:+32,+cov
diff --git a/src/mint/afl-tests/id:000532,src:000000,op:arith8,pos:316,val:+20,+cov b/src/exchange/afl-tests/id:000532,src:000000,op:arith8,pos:316,val:+20,+cov
index d451a7b00..d451a7b00 100644
--- a/src/mint/afl-tests/id:000532,src:000000,op:arith8,pos:316,val:+20,+cov
+++ b/src/exchange/afl-tests/id:000532,src:000000,op:arith8,pos:316,val:+20,+cov
diff --git a/src/mint/afl-tests/id:000532,src:000000,op:int16,pos:42,val:+64,+cov b/src/exchange/afl-tests/id:000532,src:000000,op:int16,pos:42,val:+64,+cov
index 3d44f62bc..3d44f62bc 100644
--- a/src/mint/afl-tests/id:000532,src:000000,op:int16,pos:42,val:+64,+cov
+++ b/src/exchange/afl-tests/id:000532,src:000000,op:int16,pos:42,val:+64,+cov
diff --git a/src/mint/afl-tests/id:000533,src:000000,op:arith8,pos:316,val:-23,+cov b/src/exchange/afl-tests/id:000533,src:000000,op:arith8,pos:316,val:-23,+cov
index 4c8cda9c1..4c8cda9c1 100644
--- a/src/mint/afl-tests/id:000533,src:000000,op:arith8,pos:316,val:-23,+cov
+++ b/src/exchange/afl-tests/id:000533,src:000000,op:arith8,pos:316,val:-23,+cov
diff --git a/src/mint/afl-tests/id:000533,src:000000,op:int16,pos:47,val:+128,+cov b/src/exchange/afl-tests/id:000533,src:000000,op:int16,pos:47,val:+128,+cov
index 6706ee7fa..6706ee7fa 100644
--- a/src/mint/afl-tests/id:000533,src:000000,op:int16,pos:47,val:+128,+cov
+++ b/src/exchange/afl-tests/id:000533,src:000000,op:int16,pos:47,val:+128,+cov
diff --git a/src/mint/afl-tests/id:000534,src:000000,op:arith8,pos:316,val:-28,+cov b/src/exchange/afl-tests/id:000534,src:000000,op:arith8,pos:316,val:-28,+cov
index 13473031a..13473031a 100644
--- a/src/mint/afl-tests/id:000534,src:000000,op:arith8,pos:316,val:-28,+cov
+++ b/src/exchange/afl-tests/id:000534,src:000000,op:arith8,pos:316,val:-28,+cov
diff --git a/src/mint/afl-tests/id:000534,src:000000,op:int16,pos:48,val:be:+1000,+cov b/src/exchange/afl-tests/id:000534,src:000000,op:int16,pos:48,val:be:+1000,+cov
index 9fe141673..9fe141673 100644
--- a/src/mint/afl-tests/id:000534,src:000000,op:int16,pos:48,val:be:+1000,+cov
+++ b/src/exchange/afl-tests/id:000534,src:000000,op:int16,pos:48,val:be:+1000,+cov
diff --git a/src/mint/afl-tests/id:000535,src:000000,op:arith8,pos:317,val:-31,+cov b/src/exchange/afl-tests/id:000535,src:000000,op:arith8,pos:317,val:-31,+cov
index c0e1ac204..c0e1ac204 100644
--- a/src/mint/afl-tests/id:000535,src:000000,op:arith8,pos:317,val:-31,+cov
+++ b/src/exchange/afl-tests/id:000535,src:000000,op:arith8,pos:317,val:-31,+cov
diff --git a/src/mint/afl-tests/id:000535,src:000000,op:int16,pos:50,val:+16,+cov b/src/exchange/afl-tests/id:000535,src:000000,op:int16,pos:50,val:+16,+cov
index 96e2a8f09..96e2a8f09 100644
--- a/src/mint/afl-tests/id:000535,src:000000,op:int16,pos:50,val:+16,+cov
+++ b/src/exchange/afl-tests/id:000535,src:000000,op:int16,pos:50,val:+16,+cov
diff --git a/src/mint/afl-tests/id:000536,src:000000,op:arith8,pos:318,val:+23,+cov b/src/exchange/afl-tests/id:000536,src:000000,op:arith8,pos:318,val:+23,+cov
index 05c5c4a56..05c5c4a56 100644
--- a/src/mint/afl-tests/id:000536,src:000000,op:arith8,pos:318,val:+23,+cov
+++ b/src/exchange/afl-tests/id:000536,src:000000,op:arith8,pos:318,val:+23,+cov
diff --git a/src/mint/afl-tests/id:000536,src:000000,op:int16,pos:50,val:be:+1024,+cov b/src/exchange/afl-tests/id:000536,src:000000,op:int16,pos:50,val:be:+1024,+cov
index 21b0ca0a4..21b0ca0a4 100644
--- a/src/mint/afl-tests/id:000536,src:000000,op:int16,pos:50,val:be:+1024,+cov
+++ b/src/exchange/afl-tests/id:000536,src:000000,op:int16,pos:50,val:be:+1024,+cov
diff --git a/src/mint/afl-tests/id:000537,src:000000,op:arith8,pos:319,val:-12,+cov b/src/exchange/afl-tests/id:000537,src:000000,op:arith8,pos:319,val:-12,+cov
index 8f779e896..8f779e896 100644
--- a/src/mint/afl-tests/id:000537,src:000000,op:arith8,pos:319,val:-12,+cov
+++ b/src/exchange/afl-tests/id:000537,src:000000,op:arith8,pos:319,val:-12,+cov
diff --git a/src/mint/afl-tests/id:000537,src:000000,op:int16,pos:52,val:-129,+cov b/src/exchange/afl-tests/id:000537,src:000000,op:int16,pos:52,val:-129,+cov
index 3a2388b2e..3a2388b2e 100644
--- a/src/mint/afl-tests/id:000537,src:000000,op:int16,pos:52,val:-129,+cov
+++ b/src/exchange/afl-tests/id:000537,src:000000,op:int16,pos:52,val:-129,+cov
diff --git a/src/mint/afl-tests/id:000538,src:000000,op:arith8,pos:320,val:+17,+cov b/src/exchange/afl-tests/id:000538,src:000000,op:arith8,pos:320,val:+17,+cov
index 6d98cc067..6d98cc067 100644
--- a/src/mint/afl-tests/id:000538,src:000000,op:arith8,pos:320,val:+17,+cov
+++ b/src/exchange/afl-tests/id:000538,src:000000,op:arith8,pos:320,val:+17,+cov
diff --git a/src/mint/afl-tests/id:000538,src:000000,op:int16,pos:52,val:+128,+cov b/src/exchange/afl-tests/id:000538,src:000000,op:int16,pos:52,val:+128,+cov
index 61400e2da..61400e2da 100644
--- a/src/mint/afl-tests/id:000538,src:000000,op:int16,pos:52,val:+128,+cov
+++ b/src/exchange/afl-tests/id:000538,src:000000,op:int16,pos:52,val:+128,+cov
diff --git a/src/mint/afl-tests/id:000539,src:000000,op:arith8,pos:320,val:-31,+cov b/src/exchange/afl-tests/id:000539,src:000000,op:arith8,pos:320,val:-31,+cov
index 1a8d6bb70..1a8d6bb70 100644
--- a/src/mint/afl-tests/id:000539,src:000000,op:arith8,pos:320,val:-31,+cov
+++ b/src/exchange/afl-tests/id:000539,src:000000,op:arith8,pos:320,val:-31,+cov
diff --git a/src/mint/afl-tests/id:000539,src:000000,op:int16,pos:52,val:be:+255,+cov b/src/exchange/afl-tests/id:000539,src:000000,op:int16,pos:52,val:be:+255,+cov
index 022b499b1..022b499b1 100644
--- a/src/mint/afl-tests/id:000539,src:000000,op:int16,pos:52,val:be:+255,+cov
+++ b/src/exchange/afl-tests/id:000539,src:000000,op:int16,pos:52,val:be:+255,+cov
diff --git a/src/mint/afl-tests/id:000540,src:000000,op:arith8,pos:321,val:-34,+cov b/src/exchange/afl-tests/id:000540,src:000000,op:arith8,pos:321,val:-34,+cov
index 49a3d1a94..49a3d1a94 100644
--- a/src/mint/afl-tests/id:000540,src:000000,op:arith8,pos:321,val:-34,+cov
+++ b/src/exchange/afl-tests/id:000540,src:000000,op:arith8,pos:321,val:-34,+cov
diff --git a/src/mint/afl-tests/id:000540,src:000000,op:int16,pos:53,val:+0,+cov b/src/exchange/afl-tests/id:000540,src:000000,op:int16,pos:53,val:+0,+cov
index 9e4846de1..9e4846de1 100644
--- a/src/mint/afl-tests/id:000540,src:000000,op:int16,pos:53,val:+0,+cov
+++ b/src/exchange/afl-tests/id:000540,src:000000,op:int16,pos:53,val:+0,+cov
diff --git a/src/mint/afl-tests/id:000541,src:000000,op:arith8,pos:322,val:+3,+cov b/src/exchange/afl-tests/id:000541,src:000000,op:arith8,pos:322,val:+3,+cov
index 088824785..088824785 100644
--- a/src/mint/afl-tests/id:000541,src:000000,op:arith8,pos:322,val:+3,+cov
+++ b/src/exchange/afl-tests/id:000541,src:000000,op:arith8,pos:322,val:+3,+cov
diff --git a/src/mint/afl-tests/id:000541,src:000000,op:int16,pos:54,val:+1,+cov b/src/exchange/afl-tests/id:000541,src:000000,op:int16,pos:54,val:+1,+cov
index d95a3bd2e..d95a3bd2e 100644
--- a/src/mint/afl-tests/id:000541,src:000000,op:int16,pos:54,val:+1,+cov
+++ b/src/exchange/afl-tests/id:000541,src:000000,op:int16,pos:54,val:+1,+cov
diff --git a/src/mint/afl-tests/id:000542,src:000000,op:arith8,pos:322,val:+7,+cov b/src/exchange/afl-tests/id:000542,src:000000,op:arith8,pos:322,val:+7,+cov
index dd78df26f..dd78df26f 100644
--- a/src/mint/afl-tests/id:000542,src:000000,op:arith8,pos:322,val:+7,+cov
+++ b/src/exchange/afl-tests/id:000542,src:000000,op:arith8,pos:322,val:+7,+cov
diff --git a/src/mint/afl-tests/id:000542,src:000000,op:int16,pos:69,val:-129,+cov b/src/exchange/afl-tests/id:000542,src:000000,op:int16,pos:69,val:-129,+cov
index 6a42bbe18..6a42bbe18 100644
--- a/src/mint/afl-tests/id:000542,src:000000,op:int16,pos:69,val:-129,+cov
+++ b/src/exchange/afl-tests/id:000542,src:000000,op:int16,pos:69,val:-129,+cov
diff --git a/src/mint/afl-tests/id:000543,src:000000,op:arith8,pos:326,val:-9,+cov b/src/exchange/afl-tests/id:000543,src:000000,op:arith8,pos:326,val:-9,+cov
index d6b49c729..d6b49c729 100644
--- a/src/mint/afl-tests/id:000543,src:000000,op:arith8,pos:326,val:-9,+cov
+++ b/src/exchange/afl-tests/id:000543,src:000000,op:arith8,pos:326,val:-9,+cov
diff --git a/src/mint/afl-tests/id:000543,src:000000,op:int16,pos:74,val:be:-128,+cov b/src/exchange/afl-tests/id:000543,src:000000,op:int16,pos:74,val:be:-128,+cov
index d1176bdf5..d1176bdf5 100644
--- a/src/mint/afl-tests/id:000543,src:000000,op:int16,pos:74,val:be:-128,+cov
+++ b/src/exchange/afl-tests/id:000543,src:000000,op:int16,pos:74,val:be:-128,+cov
diff --git a/src/mint/afl-tests/id:000544,src:000000,op:arith8,pos:326,val:-31,+cov b/src/exchange/afl-tests/id:000544,src:000000,op:arith8,pos:326,val:-31,+cov
index be070dcd3..be070dcd3 100644
--- a/src/mint/afl-tests/id:000544,src:000000,op:arith8,pos:326,val:-31,+cov
+++ b/src/exchange/afl-tests/id:000544,src:000000,op:arith8,pos:326,val:-31,+cov
diff --git a/src/mint/afl-tests/id:000544,src:000000,op:int16,pos:78,val:be:+127,+cov b/src/exchange/afl-tests/id:000544,src:000000,op:int16,pos:78,val:be:+127,+cov
index e0e32e3f8..e0e32e3f8 100644
--- a/src/mint/afl-tests/id:000544,src:000000,op:int16,pos:78,val:be:+127,+cov
+++ b/src/exchange/afl-tests/id:000544,src:000000,op:int16,pos:78,val:be:+127,+cov
diff --git a/src/mint/afl-tests/id:000545,src:000000,op:arith8,pos:326,val:-35,+cov b/src/exchange/afl-tests/id:000545,src:000000,op:arith8,pos:326,val:-35,+cov
index 56c9b289a..56c9b289a 100644
--- a/src/mint/afl-tests/id:000545,src:000000,op:arith8,pos:326,val:-35,+cov
+++ b/src/exchange/afl-tests/id:000545,src:000000,op:arith8,pos:326,val:-35,+cov
diff --git a/src/mint/afl-tests/id:000545,src:000000,op:int16,pos:81,val:+32767,+cov b/src/exchange/afl-tests/id:000545,src:000000,op:int16,pos:81,val:+32767,+cov
index 8cebabded..8cebabded 100644
--- a/src/mint/afl-tests/id:000545,src:000000,op:int16,pos:81,val:+32767,+cov
+++ b/src/exchange/afl-tests/id:000545,src:000000,op:int16,pos:81,val:+32767,+cov
diff --git a/src/mint/afl-tests/id:000546,src:000000,op:arith8,pos:327,val:+5 b/src/exchange/afl-tests/id:000546,src:000000,op:arith8,pos:327,val:+5
index 59aa85414..59aa85414 100644
--- a/src/mint/afl-tests/id:000546,src:000000,op:arith8,pos:327,val:+5
+++ b/src/exchange/afl-tests/id:000546,src:000000,op:arith8,pos:327,val:+5
diff --git a/src/mint/afl-tests/id:000546,src:000000,op:int16,pos:83,val:+127,+cov b/src/exchange/afl-tests/id:000546,src:000000,op:int16,pos:83,val:+127,+cov
index 55a511c14..55a511c14 100644
--- a/src/mint/afl-tests/id:000546,src:000000,op:int16,pos:83,val:+127,+cov
+++ b/src/exchange/afl-tests/id:000546,src:000000,op:int16,pos:83,val:+127,+cov
diff --git a/src/mint/afl-tests/id:000547,src:000000,op:arith8,pos:327,val:+7,+cov b/src/exchange/afl-tests/id:000547,src:000000,op:arith8,pos:327,val:+7,+cov
index 96d86ac77..96d86ac77 100644
--- a/src/mint/afl-tests/id:000547,src:000000,op:arith8,pos:327,val:+7,+cov
+++ b/src/exchange/afl-tests/id:000547,src:000000,op:arith8,pos:327,val:+7,+cov
diff --git a/src/mint/afl-tests/id:000547,src:000000,op:int16,pos:86,val:+4096,+cov b/src/exchange/afl-tests/id:000547,src:000000,op:int16,pos:86,val:+4096,+cov
index 1ad848ad0..1ad848ad0 100644
--- a/src/mint/afl-tests/id:000547,src:000000,op:int16,pos:86,val:+4096,+cov
+++ b/src/exchange/afl-tests/id:000547,src:000000,op:int16,pos:86,val:+4096,+cov
diff --git a/src/mint/afl-tests/id:000548,src:000000,op:arith8,pos:327,val:+11,+cov b/src/exchange/afl-tests/id:000548,src:000000,op:arith8,pos:327,val:+11,+cov
index bb9534e22..bb9534e22 100644
--- a/src/mint/afl-tests/id:000548,src:000000,op:arith8,pos:327,val:+11,+cov
+++ b/src/exchange/afl-tests/id:000548,src:000000,op:arith8,pos:327,val:+11,+cov
diff --git a/src/mint/afl-tests/id:000548,src:000000,op:int16,pos:87,val:+16,+cov b/src/exchange/afl-tests/id:000548,src:000000,op:int16,pos:87,val:+16,+cov
index 342d6ec3d..342d6ec3d 100644
--- a/src/mint/afl-tests/id:000548,src:000000,op:int16,pos:87,val:+16,+cov
+++ b/src/exchange/afl-tests/id:000548,src:000000,op:int16,pos:87,val:+16,+cov
diff --git a/src/mint/afl-tests/id:000549,src:000000,op:arith8,pos:327,val:-24,+cov b/src/exchange/afl-tests/id:000549,src:000000,op:arith8,pos:327,val:-24,+cov
index bf2457f29..bf2457f29 100644
--- a/src/mint/afl-tests/id:000549,src:000000,op:arith8,pos:327,val:-24,+cov
+++ b/src/exchange/afl-tests/id:000549,src:000000,op:arith8,pos:327,val:-24,+cov
diff --git a/src/mint/afl-tests/id:000549,src:000000,op:int16,pos:87,val:-32768,+cov b/src/exchange/afl-tests/id:000549,src:000000,op:int16,pos:87,val:-32768,+cov
index 55e87c367..55e87c367 100644
--- a/src/mint/afl-tests/id:000549,src:000000,op:int16,pos:87,val:-32768,+cov
+++ b/src/exchange/afl-tests/id:000549,src:000000,op:int16,pos:87,val:-32768,+cov
diff --git a/src/mint/afl-tests/id:000550,src:000000,op:arith8,pos:328,val:+14,+cov b/src/exchange/afl-tests/id:000550,src:000000,op:arith8,pos:328,val:+14,+cov
index c7a962042..c7a962042 100644
--- a/src/mint/afl-tests/id:000550,src:000000,op:arith8,pos:328,val:+14,+cov
+++ b/src/exchange/afl-tests/id:000550,src:000000,op:arith8,pos:328,val:+14,+cov
diff --git a/src/mint/afl-tests/id:000550,src:000000,op:int16,pos:90,val:+256,+cov b/src/exchange/afl-tests/id:000550,src:000000,op:int16,pos:90,val:+256,+cov
index a0ca91e90..a0ca91e90 100644
--- a/src/mint/afl-tests/id:000550,src:000000,op:int16,pos:90,val:+256,+cov
+++ b/src/exchange/afl-tests/id:000550,src:000000,op:int16,pos:90,val:+256,+cov
diff --git a/src/mint/afl-tests/id:000551,src:000000,op:arith8,pos:329,val:+1,+cov b/src/exchange/afl-tests/id:000551,src:000000,op:arith8,pos:329,val:+1,+cov
index 90b8dc4cb..90b8dc4cb 100644
--- a/src/mint/afl-tests/id:000551,src:000000,op:arith8,pos:329,val:+1,+cov
+++ b/src/exchange/afl-tests/id:000551,src:000000,op:arith8,pos:329,val:+1,+cov
diff --git a/src/mint/afl-tests/id:000551,src:000000,op:int16,pos:91,val:+32,+cov b/src/exchange/afl-tests/id:000551,src:000000,op:int16,pos:91,val:+32,+cov
index 9555e4734..9555e4734 100644
--- a/src/mint/afl-tests/id:000551,src:000000,op:int16,pos:91,val:+32,+cov
+++ b/src/exchange/afl-tests/id:000551,src:000000,op:int16,pos:91,val:+32,+cov
diff --git a/src/mint/afl-tests/id:000552,src:000000,op:arith8,pos:330,val:+9,+cov b/src/exchange/afl-tests/id:000552,src:000000,op:arith8,pos:330,val:+9,+cov
index abe39d19d..abe39d19d 100644
--- a/src/mint/afl-tests/id:000552,src:000000,op:arith8,pos:330,val:+9,+cov
+++ b/src/exchange/afl-tests/id:000552,src:000000,op:arith8,pos:330,val:+9,+cov
diff --git a/src/mint/afl-tests/id:000552,src:000000,op:int16,pos:91,val:-129,+cov b/src/exchange/afl-tests/id:000552,src:000000,op:int16,pos:91,val:-129,+cov
index 1c85703bf..1c85703bf 100644
--- a/src/mint/afl-tests/id:000552,src:000000,op:int16,pos:91,val:-129,+cov
+++ b/src/exchange/afl-tests/id:000552,src:000000,op:int16,pos:91,val:-129,+cov
diff --git a/src/mint/afl-tests/id:000553,src:000000,op:arith8,pos:330,val:-24,+cov b/src/exchange/afl-tests/id:000553,src:000000,op:arith8,pos:330,val:-24,+cov
index 00bd938a9..00bd938a9 100644
--- a/src/mint/afl-tests/id:000553,src:000000,op:arith8,pos:330,val:-24,+cov
+++ b/src/exchange/afl-tests/id:000553,src:000000,op:arith8,pos:330,val:-24,+cov
diff --git a/src/mint/afl-tests/id:000553,src:000000,op:int16,pos:93,val:+0,+cov b/src/exchange/afl-tests/id:000553,src:000000,op:int16,pos:93,val:+0,+cov
index d4ac1e214..d4ac1e214 100644
--- a/src/mint/afl-tests/id:000553,src:000000,op:int16,pos:93,val:+0,+cov
+++ b/src/exchange/afl-tests/id:000553,src:000000,op:int16,pos:93,val:+0,+cov
diff --git a/src/mint/afl-tests/id:000554,src:000000,op:int16,pos:94,val:be:+64,+cov b/src/exchange/afl-tests/id:000554,src:000000,op:int16,pos:94,val:be:+64,+cov
index f92553794..f92553794 100644
--- a/src/mint/afl-tests/id:000554,src:000000,op:int16,pos:94,val:be:+64,+cov
+++ b/src/exchange/afl-tests/id:000554,src:000000,op:int16,pos:94,val:be:+64,+cov
diff --git a/src/mint/afl-tests/id:000554,src:000000,op:int8,pos:6,val:+0 b/src/exchange/afl-tests/id:000554,src:000000,op:int8,pos:6,val:+0
index 1617639fa..1617639fa 100644
--- a/src/mint/afl-tests/id:000554,src:000000,op:int8,pos:6,val:+0
+++ b/src/exchange/afl-tests/id:000554,src:000000,op:int8,pos:6,val:+0
diff --git a/src/mint/afl-tests/id:000555,src:000000,op:int16,pos:94,val:be:+100,+cov b/src/exchange/afl-tests/id:000555,src:000000,op:int16,pos:94,val:be:+100,+cov
index 14c00a0e5..14c00a0e5 100644
--- a/src/mint/afl-tests/id:000555,src:000000,op:int16,pos:94,val:be:+100,+cov
+++ b/src/exchange/afl-tests/id:000555,src:000000,op:int16,pos:94,val:be:+100,+cov
diff --git a/src/mint/afl-tests/id:000555,src:000000,op:int8,pos:7,val:+0 b/src/exchange/afl-tests/id:000555,src:000000,op:int8,pos:7,val:+0
index bf79da717..bf79da717 100644
--- a/src/mint/afl-tests/id:000555,src:000000,op:int8,pos:7,val:+0
+++ b/src/exchange/afl-tests/id:000555,src:000000,op:int8,pos:7,val:+0
diff --git a/src/mint/afl-tests/id:000556,src:000000,op:int16,pos:232,val:+1,+cov b/src/exchange/afl-tests/id:000556,src:000000,op:int16,pos:232,val:+1,+cov
index 28ac725fa..28ac725fa 100644
--- a/src/mint/afl-tests/id:000556,src:000000,op:int16,pos:232,val:+1,+cov
+++ b/src/exchange/afl-tests/id:000556,src:000000,op:int16,pos:232,val:+1,+cov
diff --git a/src/mint/afl-tests/id:000556,src:000000,op:int8,pos:9,val:+0 b/src/exchange/afl-tests/id:000556,src:000000,op:int8,pos:9,val:+0
index 3bd6a1d9b..3bd6a1d9b 100644
--- a/src/mint/afl-tests/id:000556,src:000000,op:int8,pos:9,val:+0
+++ b/src/exchange/afl-tests/id:000556,src:000000,op:int8,pos:9,val:+0
diff --git a/src/mint/afl-tests/id:000557,src:000000,op:int16,pos:254,val:+256,+cov b/src/exchange/afl-tests/id:000557,src:000000,op:int16,pos:254,val:+256,+cov
index 20a869e0d..20a869e0d 100644
--- a/src/mint/afl-tests/id:000557,src:000000,op:int16,pos:254,val:+256,+cov
+++ b/src/exchange/afl-tests/id:000557,src:000000,op:int16,pos:254,val:+256,+cov
diff --git a/src/mint/afl-tests/id:000557,src:000000,op:int8,pos:34,val:+0,+cov b/src/exchange/afl-tests/id:000557,src:000000,op:int8,pos:34,val:+0,+cov
index b44840248..b44840248 100644
--- a/src/mint/afl-tests/id:000557,src:000000,op:int8,pos:34,val:+0,+cov
+++ b/src/exchange/afl-tests/id:000557,src:000000,op:int8,pos:34,val:+0,+cov
diff --git a/src/mint/afl-tests/id:000558,src:000000,op:int16,pos:262,val:+1000,+cov b/src/exchange/afl-tests/id:000558,src:000000,op:int16,pos:262,val:+1000,+cov
index 3e20e1735..3e20e1735 100644
--- a/src/mint/afl-tests/id:000558,src:000000,op:int16,pos:262,val:+1000,+cov
+++ b/src/exchange/afl-tests/id:000558,src:000000,op:int16,pos:262,val:+1000,+cov
diff --git a/src/mint/afl-tests/id:000558,src:000000,op:int8,pos:40,val:+0,+cov b/src/exchange/afl-tests/id:000558,src:000000,op:int8,pos:40,val:+0,+cov
index 1753c57a2..1753c57a2 100644
--- a/src/mint/afl-tests/id:000558,src:000000,op:int8,pos:40,val:+0,+cov
+++ b/src/exchange/afl-tests/id:000558,src:000000,op:int8,pos:40,val:+0,+cov
diff --git a/src/mint/afl-tests/id:000559,src:000000,op:int16,pos:303,val:+128,+cov b/src/exchange/afl-tests/id:000559,src:000000,op:int16,pos:303,val:+128,+cov
index 531d5555b..531d5555b 100644
--- a/src/mint/afl-tests/id:000559,src:000000,op:int16,pos:303,val:+128,+cov
+++ b/src/exchange/afl-tests/id:000559,src:000000,op:int16,pos:303,val:+128,+cov
diff --git a/src/mint/afl-tests/id:000559,src:000000,op:int8,pos:40,val:+32 b/src/exchange/afl-tests/id:000559,src:000000,op:int8,pos:40,val:+32
index 478612835..478612835 100644
--- a/src/mint/afl-tests/id:000559,src:000000,op:int8,pos:40,val:+32
+++ b/src/exchange/afl-tests/id:000559,src:000000,op:int8,pos:40,val:+32
diff --git a/src/mint/afl-tests/id:000560,src:000000,op:int32,pos:3,val:be:+1000 b/src/exchange/afl-tests/id:000560,src:000000,op:int32,pos:3,val:be:+1000
index 8082e7b4f..8082e7b4f 100644
--- a/src/mint/afl-tests/id:000560,src:000000,op:int32,pos:3,val:be:+1000
+++ b/src/exchange/afl-tests/id:000560,src:000000,op:int32,pos:3,val:be:+1000
diff --git a/src/mint/afl-tests/id:000560,src:000000,op:int8,pos:44,val:-1,+cov b/src/exchange/afl-tests/id:000560,src:000000,op:int8,pos:44,val:-1,+cov
index 1993f7098..1993f7098 100644
--- a/src/mint/afl-tests/id:000560,src:000000,op:int8,pos:44,val:-1,+cov
+++ b/src/exchange/afl-tests/id:000560,src:000000,op:int8,pos:44,val:-1,+cov
diff --git a/src/mint/afl-tests/id:000561,src:000000,op:int32,pos:28,val:+32768,+cov b/src/exchange/afl-tests/id:000561,src:000000,op:int32,pos:28,val:+32768,+cov
index a73cd86bc..a73cd86bc 100644
--- a/src/mint/afl-tests/id:000561,src:000000,op:int32,pos:28,val:+32768,+cov
+++ b/src/exchange/afl-tests/id:000561,src:000000,op:int32,pos:28,val:+32768,+cov
diff --git a/src/mint/afl-tests/id:000561,src:000000,op:int8,pos:51,val:-1,+cov b/src/exchange/afl-tests/id:000561,src:000000,op:int8,pos:51,val:-1,+cov
index 6270e9412..6270e9412 100644
--- a/src/mint/afl-tests/id:000561,src:000000,op:int8,pos:51,val:-1,+cov
+++ b/src/exchange/afl-tests/id:000561,src:000000,op:int8,pos:51,val:-1,+cov
diff --git a/src/mint/afl-tests/id:000562,src:000000,op:int32,pos:29,val:-128,+cov b/src/exchange/afl-tests/id:000562,src:000000,op:int32,pos:29,val:-128,+cov
index 6a7ac1b1f..6a7ac1b1f 100644
--- a/src/mint/afl-tests/id:000562,src:000000,op:int32,pos:29,val:-128,+cov
+++ b/src/exchange/afl-tests/id:000562,src:000000,op:int32,pos:29,val:-128,+cov
diff --git a/src/mint/afl-tests/id:000562,src:000000,op:int8,pos:62,val:-128,+cov b/src/exchange/afl-tests/id:000562,src:000000,op:int8,pos:62,val:-128,+cov
index 420f20062..420f20062 100644
--- a/src/mint/afl-tests/id:000562,src:000000,op:int8,pos:62,val:-128,+cov
+++ b/src/exchange/afl-tests/id:000562,src:000000,op:int8,pos:62,val:-128,+cov
diff --git a/src/mint/afl-tests/id:000563,src:000000,op:int32,pos:33,val:-128,+cov b/src/exchange/afl-tests/id:000563,src:000000,op:int32,pos:33,val:-128,+cov
index 0c72e988b..0c72e988b 100644
--- a/src/mint/afl-tests/id:000563,src:000000,op:int32,pos:33,val:-128,+cov
+++ b/src/exchange/afl-tests/id:000563,src:000000,op:int32,pos:33,val:-128,+cov
diff --git a/src/mint/afl-tests/id:000563,src:000000,op:int8,pos:135,val:+127,+cov b/src/exchange/afl-tests/id:000563,src:000000,op:int8,pos:135,val:+127,+cov
index 3a784fe63..3a784fe63 100644
--- a/src/mint/afl-tests/id:000563,src:000000,op:int8,pos:135,val:+127,+cov
+++ b/src/exchange/afl-tests/id:000563,src:000000,op:int8,pos:135,val:+127,+cov
diff --git a/src/mint/afl-tests/id:000564,src:000000,op:int32,pos:33,val:+1024,+cov b/src/exchange/afl-tests/id:000564,src:000000,op:int32,pos:33,val:+1024,+cov
index 754d878c6..754d878c6 100644
--- a/src/mint/afl-tests/id:000564,src:000000,op:int32,pos:33,val:+1024,+cov
+++ b/src/exchange/afl-tests/id:000564,src:000000,op:int32,pos:33,val:+1024,+cov
diff --git a/src/mint/afl-tests/id:000564,src:000000,op:int8,pos:140,val:+100,+cov b/src/exchange/afl-tests/id:000564,src:000000,op:int8,pos:140,val:+100,+cov
index 65c596600..65c596600 100644
--- a/src/mint/afl-tests/id:000564,src:000000,op:int8,pos:140,val:+100,+cov
+++ b/src/exchange/afl-tests/id:000564,src:000000,op:int8,pos:140,val:+100,+cov
diff --git a/src/mint/afl-tests/id:000565,src:000000,op:int32,pos:33,val:be:-32769,+cov b/src/exchange/afl-tests/id:000565,src:000000,op:int32,pos:33,val:be:-32769,+cov
index 391df0563..391df0563 100644
--- a/src/mint/afl-tests/id:000565,src:000000,op:int32,pos:33,val:be:-32769,+cov
+++ b/src/exchange/afl-tests/id:000565,src:000000,op:int32,pos:33,val:be:-32769,+cov
diff --git a/src/mint/afl-tests/id:000565,src:000000,op:int8,pos:178,val:+100,+cov b/src/exchange/afl-tests/id:000565,src:000000,op:int8,pos:178,val:+100,+cov
index 2b5c674c0..2b5c674c0 100644
--- a/src/mint/afl-tests/id:000565,src:000000,op:int8,pos:178,val:+100,+cov
+++ b/src/exchange/afl-tests/id:000565,src:000000,op:int8,pos:178,val:+100,+cov
diff --git a/src/mint/afl-tests/id:000566,src:000000,op:int16,pos:27,val:-128,+cov b/src/exchange/afl-tests/id:000566,src:000000,op:int16,pos:27,val:-128,+cov
index 2ad45c272..2ad45c272 100644
--- a/src/mint/afl-tests/id:000566,src:000000,op:int16,pos:27,val:-128,+cov
+++ b/src/exchange/afl-tests/id:000566,src:000000,op:int16,pos:27,val:-128,+cov
diff --git a/src/mint/afl-tests/id:000566,src:000000,op:int32,pos:39,val:be:+255,+cov b/src/exchange/afl-tests/id:000566,src:000000,op:int32,pos:39,val:be:+255,+cov
index 742b89c52..742b89c52 100644
--- a/src/mint/afl-tests/id:000566,src:000000,op:int32,pos:39,val:be:+255,+cov
+++ b/src/exchange/afl-tests/id:000566,src:000000,op:int32,pos:39,val:be:+255,+cov
diff --git a/src/mint/afl-tests/id:000567,src:000000,op:int16,pos:28,val:be:+32,+cov b/src/exchange/afl-tests/id:000567,src:000000,op:int16,pos:28,val:be:+32,+cov
index 5728df48c..5728df48c 100644
--- a/src/mint/afl-tests/id:000567,src:000000,op:int16,pos:28,val:be:+32,+cov
+++ b/src/exchange/afl-tests/id:000567,src:000000,op:int16,pos:28,val:be:+32,+cov
diff --git a/src/mint/afl-tests/id:000567,src:000000,op:int32,pos:40,val:+32767,+cov b/src/exchange/afl-tests/id:000567,src:000000,op:int32,pos:40,val:+32767,+cov
index 3c1d9f2c4..3c1d9f2c4 100644
--- a/src/mint/afl-tests/id:000567,src:000000,op:int32,pos:40,val:+32767,+cov
+++ b/src/exchange/afl-tests/id:000567,src:000000,op:int32,pos:40,val:+32767,+cov
diff --git a/src/mint/afl-tests/id:000568,src:000000,op:int16,pos:28,val:be:+127,+cov b/src/exchange/afl-tests/id:000568,src:000000,op:int16,pos:28,val:be:+127,+cov
index c6306744b..c6306744b 100644
--- a/src/mint/afl-tests/id:000568,src:000000,op:int16,pos:28,val:be:+127,+cov
+++ b/src/exchange/afl-tests/id:000568,src:000000,op:int16,pos:28,val:be:+127,+cov
diff --git a/src/mint/afl-tests/id:000568,src:000000,op:int32,pos:41,val:+16,+cov b/src/exchange/afl-tests/id:000568,src:000000,op:int32,pos:41,val:+16,+cov
index 465edd129..465edd129 100644
--- a/src/mint/afl-tests/id:000568,src:000000,op:int32,pos:41,val:+16,+cov
+++ b/src/exchange/afl-tests/id:000568,src:000000,op:int32,pos:41,val:+16,+cov
diff --git a/src/mint/afl-tests/id:000569,src:000000,op:int16,pos:33,val:be:+512,+cov b/src/exchange/afl-tests/id:000569,src:000000,op:int16,pos:33,val:be:+512,+cov
index 571fbb201..571fbb201 100644
--- a/src/mint/afl-tests/id:000569,src:000000,op:int16,pos:33,val:be:+512,+cov
+++ b/src/exchange/afl-tests/id:000569,src:000000,op:int16,pos:33,val:be:+512,+cov
diff --git a/src/mint/afl-tests/id:000569,src:000000,op:int32,pos:41,val:+1024,+cov b/src/exchange/afl-tests/id:000569,src:000000,op:int32,pos:41,val:+1024,+cov
index af9861b66..af9861b66 100644
--- a/src/mint/afl-tests/id:000569,src:000000,op:int32,pos:41,val:+1024,+cov
+++ b/src/exchange/afl-tests/id:000569,src:000000,op:int32,pos:41,val:+1024,+cov
diff --git a/src/mint/afl-tests/id:000570,src:000000,op:int16,pos:34,val:+1000,+cov b/src/exchange/afl-tests/id:000570,src:000000,op:int16,pos:34,val:+1000,+cov
index 77f2892f9..77f2892f9 100644
--- a/src/mint/afl-tests/id:000570,src:000000,op:int16,pos:34,val:+1000,+cov
+++ b/src/exchange/afl-tests/id:000570,src:000000,op:int16,pos:34,val:+1000,+cov
diff --git a/src/mint/afl-tests/id:000570,src:000000,op:int32,pos:44,val:-32769,+cov b/src/exchange/afl-tests/id:000570,src:000000,op:int32,pos:44,val:-32769,+cov
index 30e5e6da0..30e5e6da0 100644
--- a/src/mint/afl-tests/id:000570,src:000000,op:int32,pos:44,val:-32769,+cov
+++ b/src/exchange/afl-tests/id:000570,src:000000,op:int32,pos:44,val:-32769,+cov
diff --git a/src/mint/afl-tests/id:000571,src:000000,op:int16,pos:44,val:+512,+cov b/src/exchange/afl-tests/id:000571,src:000000,op:int16,pos:44,val:+512,+cov
index 6eed334c0..6eed334c0 100644
--- a/src/mint/afl-tests/id:000571,src:000000,op:int16,pos:44,val:+512,+cov
+++ b/src/exchange/afl-tests/id:000571,src:000000,op:int16,pos:44,val:+512,+cov
diff --git a/src/mint/afl-tests/id:000571,src:000000,op:int32,pos:45,val:be:+1024,+cov b/src/exchange/afl-tests/id:000571,src:000000,op:int32,pos:45,val:be:+1024,+cov
index 747b8e2c1..747b8e2c1 100644
--- a/src/mint/afl-tests/id:000571,src:000000,op:int32,pos:45,val:be:+1024,+cov
+++ b/src/exchange/afl-tests/id:000571,src:000000,op:int32,pos:45,val:be:+1024,+cov
diff --git a/src/mint/afl-tests/id:000572,src:000000,op:int16,pos:46,val:+100,+cov b/src/exchange/afl-tests/id:000572,src:000000,op:int16,pos:46,val:+100,+cov
index 7dd561e52..7dd561e52 100644
--- a/src/mint/afl-tests/id:000572,src:000000,op:int16,pos:46,val:+100,+cov
+++ b/src/exchange/afl-tests/id:000572,src:000000,op:int16,pos:46,val:+100,+cov
diff --git a/src/mint/afl-tests/id:000572,src:000000,op:int32,pos:48,val:+256,+cov b/src/exchange/afl-tests/id:000572,src:000000,op:int32,pos:48,val:+256,+cov
index 6760f794b..6760f794b 100644
--- a/src/mint/afl-tests/id:000572,src:000000,op:int32,pos:48,val:+256,+cov
+++ b/src/exchange/afl-tests/id:000572,src:000000,op:int32,pos:48,val:+256,+cov
diff --git a/src/mint/afl-tests/id:000573,src:000000,op:int16,pos:46,val:be:+512,+cov b/src/exchange/afl-tests/id:000573,src:000000,op:int16,pos:46,val:be:+512,+cov
index 77e3d2608..77e3d2608 100644
--- a/src/mint/afl-tests/id:000573,src:000000,op:int16,pos:46,val:be:+512,+cov
+++ b/src/exchange/afl-tests/id:000573,src:000000,op:int16,pos:46,val:be:+512,+cov
diff --git a/src/mint/afl-tests/id:000573,src:000000,op:int32,pos:53,val:+32768,+cov b/src/exchange/afl-tests/id:000573,src:000000,op:int32,pos:53,val:+32768,+cov
index 4949dcaed..4949dcaed 100644
--- a/src/mint/afl-tests/id:000573,src:000000,op:int32,pos:53,val:+32768,+cov
+++ b/src/exchange/afl-tests/id:000573,src:000000,op:int32,pos:53,val:+32768,+cov
diff --git a/src/mint/afl-tests/id:000574,src:000000,op:int16,pos:52,val:-128,+cov b/src/exchange/afl-tests/id:000574,src:000000,op:int16,pos:52,val:-128,+cov
index ca64ff5fc..ca64ff5fc 100644
--- a/src/mint/afl-tests/id:000574,src:000000,op:int16,pos:52,val:-128,+cov
+++ b/src/exchange/afl-tests/id:000574,src:000000,op:int16,pos:52,val:-128,+cov
diff --git a/src/mint/afl-tests/id:000574,src:000000,op:int32,pos:54,val:be:-32768,+cov b/src/exchange/afl-tests/id:000574,src:000000,op:int32,pos:54,val:be:-32768,+cov
index a5b19e279..a5b19e279 100644
--- a/src/mint/afl-tests/id:000574,src:000000,op:int32,pos:54,val:be:-32768,+cov
+++ b/src/exchange/afl-tests/id:000574,src:000000,op:int32,pos:54,val:be:-32768,+cov
diff --git a/src/mint/afl-tests/id:000575,src:000000,op:int16,pos:54,val:-128,+cov b/src/exchange/afl-tests/id:000575,src:000000,op:int16,pos:54,val:-128,+cov
index 94507ffbd..94507ffbd 100644
--- a/src/mint/afl-tests/id:000575,src:000000,op:int16,pos:54,val:-128,+cov
+++ b/src/exchange/afl-tests/id:000575,src:000000,op:int16,pos:54,val:-128,+cov
diff --git a/src/mint/afl-tests/id:000575,src:000000,op:int32,pos:54,val:-32769,+cov b/src/exchange/afl-tests/id:000575,src:000000,op:int32,pos:54,val:-32769,+cov
index bc9f24764..bc9f24764 100644
--- a/src/mint/afl-tests/id:000575,src:000000,op:int32,pos:54,val:-32769,+cov
+++ b/src/exchange/afl-tests/id:000575,src:000000,op:int32,pos:54,val:-32769,+cov
diff --git a/src/mint/afl-tests/id:000576,src:000000,op:int16,pos:54,val:+100,+cov b/src/exchange/afl-tests/id:000576,src:000000,op:int16,pos:54,val:+100,+cov
index 921167e4e..921167e4e 100644
--- a/src/mint/afl-tests/id:000576,src:000000,op:int16,pos:54,val:+100,+cov
+++ b/src/exchange/afl-tests/id:000576,src:000000,op:int16,pos:54,val:+100,+cov
diff --git a/src/mint/afl-tests/id:000576,src:000000,op:int32,pos:54,val:+2147483647,+cov b/src/exchange/afl-tests/id:000576,src:000000,op:int32,pos:54,val:+2147483647,+cov
index 0d5dc0309..0d5dc0309 100644
--- a/src/mint/afl-tests/id:000576,src:000000,op:int32,pos:54,val:+2147483647,+cov
+++ b/src/exchange/afl-tests/id:000576,src:000000,op:int32,pos:54,val:+2147483647,+cov
diff --git a/src/mint/afl-tests/id:000577,src:000000,op:int16,pos:54,val:+255,+cov b/src/exchange/afl-tests/id:000577,src:000000,op:int16,pos:54,val:+255,+cov
index 6ff059236..6ff059236 100644
--- a/src/mint/afl-tests/id:000577,src:000000,op:int16,pos:54,val:+255,+cov
+++ b/src/exchange/afl-tests/id:000577,src:000000,op:int16,pos:54,val:+255,+cov
diff --git a/src/mint/afl-tests/id:000577,src:000000,op:int32,pos:63,val:-1,+cov b/src/exchange/afl-tests/id:000577,src:000000,op:int32,pos:63,val:-1,+cov
index adafedcc6..adafedcc6 100644
--- a/src/mint/afl-tests/id:000577,src:000000,op:int32,pos:63,val:-1,+cov
+++ b/src/exchange/afl-tests/id:000577,src:000000,op:int32,pos:63,val:-1,+cov
diff --git a/src/mint/afl-tests/id:000578,src:000000,op:int16,pos:62,val:+255,+cov b/src/exchange/afl-tests/id:000578,src:000000,op:int16,pos:62,val:+255,+cov
index 79dc26693..79dc26693 100644
--- a/src/mint/afl-tests/id:000578,src:000000,op:int16,pos:62,val:+255,+cov
+++ b/src/exchange/afl-tests/id:000578,src:000000,op:int16,pos:62,val:+255,+cov
diff --git a/src/mint/afl-tests/id:000578,src:000000,op:int32,pos:64,val:-128,+cov b/src/exchange/afl-tests/id:000578,src:000000,op:int32,pos:64,val:-128,+cov
index fabc35eee..fabc35eee 100644
--- a/src/mint/afl-tests/id:000578,src:000000,op:int32,pos:64,val:-128,+cov
+++ b/src/exchange/afl-tests/id:000578,src:000000,op:int32,pos:64,val:-128,+cov
diff --git a/src/mint/afl-tests/id:000579,src:000000,op:int16,pos:63,val:+32,+cov b/src/exchange/afl-tests/id:000579,src:000000,op:int16,pos:63,val:+32,+cov
index 2e2992ab2..2e2992ab2 100644
--- a/src/mint/afl-tests/id:000579,src:000000,op:int16,pos:63,val:+32,+cov
+++ b/src/exchange/afl-tests/id:000579,src:000000,op:int16,pos:63,val:+32,+cov
diff --git a/src/mint/afl-tests/id:000579,src:000000,op:int32,pos:69,val:+128,+cov b/src/exchange/afl-tests/id:000579,src:000000,op:int32,pos:69,val:+128,+cov
index ef5185cac..ef5185cac 100644
--- a/src/mint/afl-tests/id:000579,src:000000,op:int32,pos:69,val:+128,+cov
+++ b/src/exchange/afl-tests/id:000579,src:000000,op:int32,pos:69,val:+128,+cov
diff --git a/src/mint/afl-tests/id:000580,src:000000,op:int16,pos:65,val:be:+100,+cov b/src/exchange/afl-tests/id:000580,src:000000,op:int16,pos:65,val:be:+100,+cov
index 9c55a5050..9c55a5050 100644
--- a/src/mint/afl-tests/id:000580,src:000000,op:int16,pos:65,val:be:+100,+cov
+++ b/src/exchange/afl-tests/id:000580,src:000000,op:int16,pos:65,val:be:+100,+cov
diff --git a/src/mint/afl-tests/id:000580,src:000000,op:int32,pos:80,val:+1024,+cov b/src/exchange/afl-tests/id:000580,src:000000,op:int32,pos:80,val:+1024,+cov
index e28726550..e28726550 100644
--- a/src/mint/afl-tests/id:000580,src:000000,op:int32,pos:80,val:+1024,+cov
+++ b/src/exchange/afl-tests/id:000580,src:000000,op:int32,pos:80,val:+1024,+cov
diff --git a/src/mint/afl-tests/id:000581,src:000000,op:int16,pos:66,val:+0,+cov b/src/exchange/afl-tests/id:000581,src:000000,op:int16,pos:66,val:+0,+cov
index 1a79ad6d5..1a79ad6d5 100644
--- a/src/mint/afl-tests/id:000581,src:000000,op:int16,pos:66,val:+0,+cov
+++ b/src/exchange/afl-tests/id:000581,src:000000,op:int16,pos:66,val:+0,+cov
diff --git a/src/mint/afl-tests/id:000581,src:000000,op:int32,pos:80,val:+65535,+cov b/src/exchange/afl-tests/id:000581,src:000000,op:int32,pos:80,val:+65535,+cov
index 9fc87070c..9fc87070c 100644
--- a/src/mint/afl-tests/id:000581,src:000000,op:int32,pos:80,val:+65535,+cov
+++ b/src/exchange/afl-tests/id:000581,src:000000,op:int32,pos:80,val:+65535,+cov
diff --git a/src/mint/afl-tests/id:000582,src:000000,op:int16,pos:80,val:+1000,+cov b/src/exchange/afl-tests/id:000582,src:000000,op:int16,pos:80,val:+1000,+cov
index 7f3836487..7f3836487 100644
--- a/src/mint/afl-tests/id:000582,src:000000,op:int16,pos:80,val:+1000,+cov
+++ b/src/exchange/afl-tests/id:000582,src:000000,op:int16,pos:80,val:+1000,+cov
diff --git a/src/mint/afl-tests/id:000582,src:000000,op:int32,pos:82,val:be:+16,+cov b/src/exchange/afl-tests/id:000582,src:000000,op:int32,pos:82,val:be:+16,+cov
index 13152b78c..13152b78c 100644
--- a/src/mint/afl-tests/id:000582,src:000000,op:int32,pos:82,val:be:+16,+cov
+++ b/src/exchange/afl-tests/id:000582,src:000000,op:int32,pos:82,val:be:+16,+cov
diff --git a/src/mint/afl-tests/id:000583,src:000000,op:int16,pos:82,val:+256,+cov b/src/exchange/afl-tests/id:000583,src:000000,op:int16,pos:82,val:+256,+cov
index 751d9c12d..751d9c12d 100644
--- a/src/mint/afl-tests/id:000583,src:000000,op:int16,pos:82,val:+256,+cov
+++ b/src/exchange/afl-tests/id:000583,src:000000,op:int16,pos:82,val:+256,+cov
diff --git a/src/mint/afl-tests/id:000583,src:000000,op:int32,pos:83,val:+100,+cov b/src/exchange/afl-tests/id:000583,src:000000,op:int32,pos:83,val:+100,+cov
index 6eb899317..6eb899317 100644
--- a/src/mint/afl-tests/id:000583,src:000000,op:int32,pos:83,val:+100,+cov
+++ b/src/exchange/afl-tests/id:000583,src:000000,op:int32,pos:83,val:+100,+cov
diff --git a/src/mint/afl-tests/id:000584,src:000000,op:int16,pos:83,val:be:+1024,+cov b/src/exchange/afl-tests/id:000584,src:000000,op:int16,pos:83,val:be:+1024,+cov
index ebe720427..ebe720427 100644
--- a/src/mint/afl-tests/id:000584,src:000000,op:int16,pos:83,val:be:+1024,+cov
+++ b/src/exchange/afl-tests/id:000584,src:000000,op:int16,pos:83,val:be:+1024,+cov
diff --git a/src/mint/afl-tests/id:000584,src:000000,op:int32,pos:84,val:+32,+cov b/src/exchange/afl-tests/id:000584,src:000000,op:int32,pos:84,val:+32,+cov
index 69437f933..69437f933 100644
--- a/src/mint/afl-tests/id:000584,src:000000,op:int32,pos:84,val:+32,+cov
+++ b/src/exchange/afl-tests/id:000584,src:000000,op:int32,pos:84,val:+32,+cov
diff --git a/src/mint/afl-tests/id:000585,src:000000,op:int16,pos:87,val:-128,+cov b/src/exchange/afl-tests/id:000585,src:000000,op:int16,pos:87,val:-128,+cov
index 7c484f64a..7c484f64a 100644
--- a/src/mint/afl-tests/id:000585,src:000000,op:int16,pos:87,val:-128,+cov
+++ b/src/exchange/afl-tests/id:000585,src:000000,op:int16,pos:87,val:-128,+cov
diff --git a/src/mint/afl-tests/id:000585,src:000000,op:int32,pos:84,val:+128,+cov b/src/exchange/afl-tests/id:000585,src:000000,op:int32,pos:84,val:+128,+cov
index 5316011f8..5316011f8 100644
--- a/src/mint/afl-tests/id:000585,src:000000,op:int32,pos:84,val:+128,+cov
+++ b/src/exchange/afl-tests/id:000585,src:000000,op:int32,pos:84,val:+128,+cov
diff --git a/src/mint/afl-tests/id:000586,src:000000,op:int16,pos:87,val:-32768,+cov b/src/exchange/afl-tests/id:000586,src:000000,op:int16,pos:87,val:-32768,+cov
index 55e87c367..55e87c367 100644
--- a/src/mint/afl-tests/id:000586,src:000000,op:int16,pos:87,val:-32768,+cov
+++ b/src/exchange/afl-tests/id:000586,src:000000,op:int16,pos:87,val:-32768,+cov
diff --git a/src/mint/afl-tests/id:000586,src:000000,op:int32,pos:87,val:be:-32768,+cov b/src/exchange/afl-tests/id:000586,src:000000,op:int32,pos:87,val:be:-32768,+cov
index 35481e3c9..35481e3c9 100644
--- a/src/mint/afl-tests/id:000586,src:000000,op:int32,pos:87,val:be:-32768,+cov
+++ b/src/exchange/afl-tests/id:000586,src:000000,op:int32,pos:87,val:be:-32768,+cov
diff --git a/src/mint/afl-tests/id:000587,src:000000,op:int16,pos:94,val:-129,+cov b/src/exchange/afl-tests/id:000587,src:000000,op:int16,pos:94,val:-129,+cov
index 1f2baabc1..1f2baabc1 100644
--- a/src/mint/afl-tests/id:000587,src:000000,op:int16,pos:94,val:-129,+cov
+++ b/src/exchange/afl-tests/id:000587,src:000000,op:int16,pos:94,val:-129,+cov
diff --git a/src/mint/afl-tests/id:000587,src:000000,op:int32,pos:88,val:be:-32769,+cov b/src/exchange/afl-tests/id:000587,src:000000,op:int32,pos:88,val:be:-32769,+cov
index 0a4d6a1ac..0a4d6a1ac 100644
--- a/src/mint/afl-tests/id:000587,src:000000,op:int32,pos:88,val:be:-32769,+cov
+++ b/src/exchange/afl-tests/id:000587,src:000000,op:int32,pos:88,val:be:-32769,+cov
diff --git a/src/mint/afl-tests/id:000588,src:000000,op:int16,pos:193,val:+16 b/src/exchange/afl-tests/id:000588,src:000000,op:int16,pos:193,val:+16
index febe97b29..febe97b29 100644
--- a/src/mint/afl-tests/id:000588,src:000000,op:int16,pos:193,val:+16
+++ b/src/exchange/afl-tests/id:000588,src:000000,op:int16,pos:193,val:+16
diff --git a/src/mint/afl-tests/id:000588,src:000000,op:int32,pos:89,val:-128,+cov b/src/exchange/afl-tests/id:000588,src:000000,op:int32,pos:89,val:-128,+cov
index 9197ec60b..9197ec60b 100644
--- a/src/mint/afl-tests/id:000588,src:000000,op:int32,pos:89,val:-128,+cov
+++ b/src/exchange/afl-tests/id:000588,src:000000,op:int32,pos:89,val:-128,+cov
diff --git a/src/mint/afl-tests/id:000589,src:000000,op:int32,pos:0,val:be:+32767 b/src/exchange/afl-tests/id:000589,src:000000,op:int32,pos:0,val:be:+32767
index 00f53a7aa..00f53a7aa 100644
--- a/src/mint/afl-tests/id:000589,src:000000,op:int32,pos:0,val:be:+32767
+++ b/src/exchange/afl-tests/id:000589,src:000000,op:int32,pos:0,val:be:+32767
diff --git a/src/mint/afl-tests/id:000589,src:000000,op:int32,pos:92,val:+32767,+cov b/src/exchange/afl-tests/id:000589,src:000000,op:int32,pos:92,val:+32767,+cov
index 62aef2aba..62aef2aba 100644
--- a/src/mint/afl-tests/id:000589,src:000000,op:int32,pos:92,val:+32767,+cov
+++ b/src/exchange/afl-tests/id:000589,src:000000,op:int32,pos:92,val:+32767,+cov
diff --git a/src/mint/afl-tests/id:000590,src:000000,op:int32,pos:164,val:+256,+cov b/src/exchange/afl-tests/id:000590,src:000000,op:int32,pos:164,val:+256,+cov
index b1460a557..b1460a557 100644
--- a/src/mint/afl-tests/id:000590,src:000000,op:int32,pos:164,val:+256,+cov
+++ b/src/exchange/afl-tests/id:000590,src:000000,op:int32,pos:164,val:+256,+cov
diff --git a/src/mint/afl-tests/id:000590,src:000000,op:int32,pos:2,val:+65535 b/src/exchange/afl-tests/id:000590,src:000000,op:int32,pos:2,val:+65535
index 44e89eef3..44e89eef3 100644
--- a/src/mint/afl-tests/id:000590,src:000000,op:int32,pos:2,val:+65535
+++ b/src/exchange/afl-tests/id:000590,src:000000,op:int32,pos:2,val:+65535
diff --git a/src/mint/afl-tests/id:000591,src:000000,op:int32,pos:178,val:be:-32769,+cov b/src/exchange/afl-tests/id:000591,src:000000,op:int32,pos:178,val:be:-32769,+cov
index 478c22b4c..478c22b4c 100644
--- a/src/mint/afl-tests/id:000591,src:000000,op:int32,pos:178,val:be:-32769,+cov
+++ b/src/exchange/afl-tests/id:000591,src:000000,op:int32,pos:178,val:be:-32769,+cov
diff --git a/src/mint/afl-tests/id:000591,src:000000,op:int32,pos:7,val:-2147483648,+cov b/src/exchange/afl-tests/id:000591,src:000000,op:int32,pos:7,val:-2147483648,+cov
index f9ced7042..f9ced7042 100644
--- a/src/mint/afl-tests/id:000591,src:000000,op:int32,pos:7,val:-2147483648,+cov
+++ b/src/exchange/afl-tests/id:000591,src:000000,op:int32,pos:7,val:-2147483648,+cov
diff --git a/src/mint/afl-tests/id:000592,src:000000,op:int32,pos:232,val:be:+65535,+cov b/src/exchange/afl-tests/id:000592,src:000000,op:int32,pos:232,val:be:+65535,+cov
index 746f4b04d..746f4b04d 100644
--- a/src/mint/afl-tests/id:000592,src:000000,op:int32,pos:232,val:be:+65535,+cov
+++ b/src/exchange/afl-tests/id:000592,src:000000,op:int32,pos:232,val:be:+65535,+cov
diff --git a/src/mint/afl-tests/id:000592,src:000000,op:int32,pos:24,val:be:+32,+cov b/src/exchange/afl-tests/id:000592,src:000000,op:int32,pos:24,val:be:+32,+cov
index 43cf1a142..43cf1a142 100644
--- a/src/mint/afl-tests/id:000592,src:000000,op:int32,pos:24,val:be:+32,+cov
+++ b/src/exchange/afl-tests/id:000592,src:000000,op:int32,pos:24,val:be:+32,+cov
diff --git a/src/mint/afl-tests/id:000593,src:000000,op:int32,pos:26,val:+255,+cov b/src/exchange/afl-tests/id:000593,src:000000,op:int32,pos:26,val:+255,+cov
index 5435ad66e..5435ad66e 100644
--- a/src/mint/afl-tests/id:000593,src:000000,op:int32,pos:26,val:+255,+cov
+++ b/src/exchange/afl-tests/id:000593,src:000000,op:int32,pos:26,val:+255,+cov
diff --git a/src/mint/afl-tests/id:000593,src:000000,op:int32,pos:313,val:+1,+cov b/src/exchange/afl-tests/id:000593,src:000000,op:int32,pos:313,val:+1,+cov
index 6bb20ee80..6bb20ee80 100644
--- a/src/mint/afl-tests/id:000593,src:000000,op:int32,pos:313,val:+1,+cov
+++ b/src/exchange/afl-tests/id:000593,src:000000,op:int32,pos:313,val:+1,+cov
diff --git a/src/mint/afl-tests/id:000594,src:000000,op:int32,pos:27,val:be:+1,+cov b/src/exchange/afl-tests/id:000594,src:000000,op:int32,pos:27,val:be:+1,+cov
index 3873fa9ff..3873fa9ff 100644
--- a/src/mint/afl-tests/id:000594,src:000000,op:int32,pos:27,val:be:+1,+cov
+++ b/src/exchange/afl-tests/id:000594,src:000000,op:int32,pos:27,val:be:+1,+cov
diff --git a/src/mint/afl-tests/id:000594,src:000000,op:int32,pos:333,val:be:+255,+cov b/src/exchange/afl-tests/id:000594,src:000000,op:int32,pos:333,val:be:+255,+cov
index 7d8809ce5..7d8809ce5 100644
--- a/src/mint/afl-tests/id:000594,src:000000,op:int32,pos:333,val:be:+255,+cov
+++ b/src/exchange/afl-tests/id:000594,src:000000,op:int32,pos:333,val:be:+255,+cov
diff --git a/src/mint/afl-tests/id:000595,src:000000,op:ext_AO,pos:26,+cov b/src/exchange/afl-tests/id:000595,src:000000,op:ext_AO,pos:26,+cov
index 103515702..103515702 100644
--- a/src/mint/afl-tests/id:000595,src:000000,op:ext_AO,pos:26,+cov
+++ b/src/exchange/afl-tests/id:000595,src:000000,op:ext_AO,pos:26,+cov
diff --git a/src/mint/afl-tests/id:000595,src:000000,op:int32,pos:29,val:+1000,+cov b/src/exchange/afl-tests/id:000595,src:000000,op:int32,pos:29,val:+1000,+cov
index e15c60e4d..e15c60e4d 100644
--- a/src/mint/afl-tests/id:000595,src:000000,op:int32,pos:29,val:+1000,+cov
+++ b/src/exchange/afl-tests/id:000595,src:000000,op:int32,pos:29,val:+1000,+cov
diff --git a/src/mint/afl-tests/id:000596,src:000000,op:ext_AO,pos:43,+cov b/src/exchange/afl-tests/id:000596,src:000000,op:ext_AO,pos:43,+cov
index 9d2bcc80a..9d2bcc80a 100644
--- a/src/mint/afl-tests/id:000596,src:000000,op:ext_AO,pos:43,+cov
+++ b/src/exchange/afl-tests/id:000596,src:000000,op:ext_AO,pos:43,+cov
diff --git a/src/mint/afl-tests/id:000596,src:000000,op:int32,pos:30,val:be:+32 b/src/exchange/afl-tests/id:000596,src:000000,op:int32,pos:30,val:be:+32
index 3ba3a7670..3ba3a7670 100644
--- a/src/mint/afl-tests/id:000596,src:000000,op:int32,pos:30,val:be:+32
+++ b/src/exchange/afl-tests/id:000596,src:000000,op:int32,pos:30,val:be:+32
diff --git a/src/mint/afl-tests/id:000597,src:000000,op:ext_AO,pos:49,+cov b/src/exchange/afl-tests/id:000597,src:000000,op:ext_AO,pos:49,+cov
index 87d6c3266..87d6c3266 100644
--- a/src/mint/afl-tests/id:000597,src:000000,op:ext_AO,pos:49,+cov
+++ b/src/exchange/afl-tests/id:000597,src:000000,op:ext_AO,pos:49,+cov
diff --git a/src/mint/afl-tests/id:000597,src:000000,op:int32,pos:30,val:be:+512,+cov b/src/exchange/afl-tests/id:000597,src:000000,op:int32,pos:30,val:be:+512,+cov
index 5e2f7a7af..5e2f7a7af 100644
--- a/src/mint/afl-tests/id:000597,src:000000,op:int32,pos:30,val:be:+512,+cov
+++ b/src/exchange/afl-tests/id:000597,src:000000,op:int32,pos:30,val:be:+512,+cov
diff --git a/src/mint/afl-tests/id:000598,src:000000,op:ext_AO,pos:52,+cov b/src/exchange/afl-tests/id:000598,src:000000,op:ext_AO,pos:52,+cov
index 47faf5c11..47faf5c11 100644
--- a/src/mint/afl-tests/id:000598,src:000000,op:ext_AO,pos:52,+cov
+++ b/src/exchange/afl-tests/id:000598,src:000000,op:ext_AO,pos:52,+cov
diff --git a/src/mint/afl-tests/id:000598,src:000000,op:int32,pos:39,val:be:+1,+cov b/src/exchange/afl-tests/id:000598,src:000000,op:int32,pos:39,val:be:+1,+cov
index 15ac59807..15ac59807 100644
--- a/src/mint/afl-tests/id:000598,src:000000,op:int32,pos:39,val:be:+1,+cov
+++ b/src/exchange/afl-tests/id:000598,src:000000,op:int32,pos:39,val:be:+1,+cov
diff --git a/src/mint/afl-tests/id:000599,src:000000,op:ext_AO,pos:56,+cov b/src/exchange/afl-tests/id:000599,src:000000,op:ext_AO,pos:56,+cov
index 3e4c825d7..3e4c825d7 100644
--- a/src/mint/afl-tests/id:000599,src:000000,op:ext_AO,pos:56,+cov
+++ b/src/exchange/afl-tests/id:000599,src:000000,op:ext_AO,pos:56,+cov
diff --git a/src/mint/afl-tests/id:000599,src:000000,op:int32,pos:40,val:+1024,+cov b/src/exchange/afl-tests/id:000599,src:000000,op:int32,pos:40,val:+1024,+cov
index cd378ea3f..cd378ea3f 100644
--- a/src/mint/afl-tests/id:000599,src:000000,op:int32,pos:40,val:+1024,+cov
+++ b/src/exchange/afl-tests/id:000599,src:000000,op:int32,pos:40,val:+1024,+cov
diff --git a/src/mint/afl-tests/id:000600,src:000000,op:ext_AO,pos:64,+cov b/src/exchange/afl-tests/id:000600,src:000000,op:ext_AO,pos:64,+cov
index fca3af083..fca3af083 100644
--- a/src/mint/afl-tests/id:000600,src:000000,op:ext_AO,pos:64,+cov
+++ b/src/exchange/afl-tests/id:000600,src:000000,op:ext_AO,pos:64,+cov
diff --git a/src/mint/afl-tests/id:000600,src:000000,op:int32,pos:42,val:be:+16,+cov b/src/exchange/afl-tests/id:000600,src:000000,op:int32,pos:42,val:be:+16,+cov
index 6b1a622b7..6b1a622b7 100644
--- a/src/mint/afl-tests/id:000600,src:000000,op:int32,pos:42,val:be:+16,+cov
+++ b/src/exchange/afl-tests/id:000600,src:000000,op:int32,pos:42,val:be:+16,+cov
diff --git a/src/mint/afl-tests/id:000601,src:000000,op:ext_AO,pos:65,+cov b/src/exchange/afl-tests/id:000601,src:000000,op:ext_AO,pos:65,+cov
index 8e195f763..8e195f763 100644
--- a/src/mint/afl-tests/id:000601,src:000000,op:ext_AO,pos:65,+cov
+++ b/src/exchange/afl-tests/id:000601,src:000000,op:ext_AO,pos:65,+cov
diff --git a/src/mint/afl-tests/id:000601,src:000000,op:int32,pos:48,val:+100663045,+cov b/src/exchange/afl-tests/id:000601,src:000000,op:int32,pos:48,val:+100663045,+cov
index ac1694648..ac1694648 100644
--- a/src/mint/afl-tests/id:000601,src:000000,op:int32,pos:48,val:+100663045,+cov
+++ b/src/exchange/afl-tests/id:000601,src:000000,op:int32,pos:48,val:+100663045,+cov
diff --git a/src/mint/afl-tests/id:000602,src:000000,op:ext_AO,pos:65,+cov b/src/exchange/afl-tests/id:000602,src:000000,op:ext_AO,pos:65,+cov
index 629e226ae..629e226ae 100644
--- a/src/mint/afl-tests/id:000602,src:000000,op:ext_AO,pos:65,+cov
+++ b/src/exchange/afl-tests/id:000602,src:000000,op:ext_AO,pos:65,+cov
diff --git a/src/mint/afl-tests/id:000602,src:000000,op:int32,pos:49,val:be:+4096,+cov b/src/exchange/afl-tests/id:000602,src:000000,op:int32,pos:49,val:be:+4096,+cov
index 9d3527ce4..9d3527ce4 100644
--- a/src/mint/afl-tests/id:000602,src:000000,op:int32,pos:49,val:be:+4096,+cov
+++ b/src/exchange/afl-tests/id:000602,src:000000,op:int32,pos:49,val:be:+4096,+cov
diff --git a/src/mint/afl-tests/id:000603,src:000000,op:ext_AO,pos:69,+cov b/src/exchange/afl-tests/id:000603,src:000000,op:ext_AO,pos:69,+cov
index ba7f01c78..ba7f01c78 100644
--- a/src/mint/afl-tests/id:000603,src:000000,op:ext_AO,pos:69,+cov
+++ b/src/exchange/afl-tests/id:000603,src:000000,op:ext_AO,pos:69,+cov
diff --git a/src/mint/afl-tests/id:000603,src:000000,op:int32,pos:51,val:+128,+cov b/src/exchange/afl-tests/id:000603,src:000000,op:int32,pos:51,val:+128,+cov
index 78894f1e0..78894f1e0 100644
--- a/src/mint/afl-tests/id:000603,src:000000,op:int32,pos:51,val:+128,+cov
+++ b/src/exchange/afl-tests/id:000603,src:000000,op:int32,pos:51,val:+128,+cov
diff --git a/src/mint/afl-tests/id:000604,src:000000,op:ext_AO,pos:69,+cov b/src/exchange/afl-tests/id:000604,src:000000,op:ext_AO,pos:69,+cov
index 3d9a8d7e7..3d9a8d7e7 100644
--- a/src/mint/afl-tests/id:000604,src:000000,op:ext_AO,pos:69,+cov
+++ b/src/exchange/afl-tests/id:000604,src:000000,op:ext_AO,pos:69,+cov
diff --git a/src/mint/afl-tests/id:000604,src:000000,op:int32,pos:53,val:-128,+cov b/src/exchange/afl-tests/id:000604,src:000000,op:int32,pos:53,val:-128,+cov
index 72378f03e..72378f03e 100644
--- a/src/mint/afl-tests/id:000604,src:000000,op:int32,pos:53,val:-128,+cov
+++ b/src/exchange/afl-tests/id:000604,src:000000,op:int32,pos:53,val:-128,+cov
diff --git a/src/mint/afl-tests/id:000605,src:000000,op:ext_AO,pos:72,+cov b/src/exchange/afl-tests/id:000605,src:000000,op:ext_AO,pos:72,+cov
index dbebfb4c8..dbebfb4c8 100644
--- a/src/mint/afl-tests/id:000605,src:000000,op:ext_AO,pos:72,+cov
+++ b/src/exchange/afl-tests/id:000605,src:000000,op:ext_AO,pos:72,+cov
diff --git a/src/mint/afl-tests/id:000605,src:000000,op:int32,pos:53,val:+128,+cov b/src/exchange/afl-tests/id:000605,src:000000,op:int32,pos:53,val:+128,+cov
index 0a874d5d1..0a874d5d1 100644
--- a/src/mint/afl-tests/id:000605,src:000000,op:int32,pos:53,val:+128,+cov
+++ b/src/exchange/afl-tests/id:000605,src:000000,op:int32,pos:53,val:+128,+cov
diff --git a/src/mint/afl-tests/id:000606,src:000000,op:ext_AO,pos:72,+cov b/src/exchange/afl-tests/id:000606,src:000000,op:ext_AO,pos:72,+cov
index f99750333..f99750333 100644
--- a/src/mint/afl-tests/id:000606,src:000000,op:ext_AO,pos:72,+cov
+++ b/src/exchange/afl-tests/id:000606,src:000000,op:ext_AO,pos:72,+cov
diff --git a/src/mint/afl-tests/id:000606,src:000000,op:int32,pos:53,val:+1024,+cov b/src/exchange/afl-tests/id:000606,src:000000,op:int32,pos:53,val:+1024,+cov
index b2fcb0bef..b2fcb0bef 100644
--- a/src/mint/afl-tests/id:000606,src:000000,op:int32,pos:53,val:+1024,+cov
+++ b/src/exchange/afl-tests/id:000606,src:000000,op:int32,pos:53,val:+1024,+cov
diff --git a/src/mint/afl-tests/id:000607,src:000000,op:ext_AO,pos:76,+cov b/src/exchange/afl-tests/id:000607,src:000000,op:ext_AO,pos:76,+cov
index 822d46b46..822d46b46 100644
--- a/src/mint/afl-tests/id:000607,src:000000,op:ext_AO,pos:76,+cov
+++ b/src/exchange/afl-tests/id:000607,src:000000,op:ext_AO,pos:76,+cov
diff --git a/src/mint/afl-tests/id:000607,src:000000,op:int32,pos:64,val:+256,+cov b/src/exchange/afl-tests/id:000607,src:000000,op:int32,pos:64,val:+256,+cov
index 506b9b427..506b9b427 100644
--- a/src/mint/afl-tests/id:000607,src:000000,op:int32,pos:64,val:+256,+cov
+++ b/src/exchange/afl-tests/id:000607,src:000000,op:int32,pos:64,val:+256,+cov
diff --git a/src/mint/afl-tests/id:000608,src:000000,op:ext_AO,pos:81,+cov b/src/exchange/afl-tests/id:000608,src:000000,op:ext_AO,pos:81,+cov
index 6d94860bf..6d94860bf 100644
--- a/src/mint/afl-tests/id:000608,src:000000,op:ext_AO,pos:81,+cov
+++ b/src/exchange/afl-tests/id:000608,src:000000,op:ext_AO,pos:81,+cov
diff --git a/src/mint/afl-tests/id:000608,src:000000,op:int32,pos:65,val:+1,+cov b/src/exchange/afl-tests/id:000608,src:000000,op:int32,pos:65,val:+1,+cov
index 43888bcac..43888bcac 100644
--- a/src/mint/afl-tests/id:000608,src:000000,op:int32,pos:65,val:+1,+cov
+++ b/src/exchange/afl-tests/id:000608,src:000000,op:int32,pos:65,val:+1,+cov
diff --git a/src/mint/afl-tests/id:000609,src:000000,op:ext_AO,pos:90,+cov b/src/exchange/afl-tests/id:000609,src:000000,op:ext_AO,pos:90,+cov
index 23ecb3ea7..23ecb3ea7 100644
--- a/src/mint/afl-tests/id:000609,src:000000,op:ext_AO,pos:90,+cov
+++ b/src/exchange/afl-tests/id:000609,src:000000,op:ext_AO,pos:90,+cov
diff --git a/src/mint/afl-tests/id:000609,src:000000,op:int32,pos:65,val:be:+64,+cov b/src/exchange/afl-tests/id:000609,src:000000,op:int32,pos:65,val:be:+64,+cov
index 2374729a6..2374729a6 100644
--- a/src/mint/afl-tests/id:000609,src:000000,op:int32,pos:65,val:be:+64,+cov
+++ b/src/exchange/afl-tests/id:000609,src:000000,op:int32,pos:65,val:be:+64,+cov
diff --git a/src/mint/afl-tests/id:000610,src:000000,op:ext_AO,pos:111,+cov b/src/exchange/afl-tests/id:000610,src:000000,op:ext_AO,pos:111,+cov
index 0df8e4a5b..0df8e4a5b 100644
--- a/src/mint/afl-tests/id:000610,src:000000,op:ext_AO,pos:111,+cov
+++ b/src/exchange/afl-tests/id:000610,src:000000,op:ext_AO,pos:111,+cov
diff --git a/src/mint/afl-tests/id:000610,src:000000,op:int32,pos:66,val:+16,+cov b/src/exchange/afl-tests/id:000610,src:000000,op:int32,pos:66,val:+16,+cov
index 3d1d5bd9b..3d1d5bd9b 100644
--- a/src/mint/afl-tests/id:000610,src:000000,op:int32,pos:66,val:+16,+cov
+++ b/src/exchange/afl-tests/id:000610,src:000000,op:int32,pos:66,val:+16,+cov
diff --git a/src/mint/afl-tests/id:000611,src:000000,op:ext_AO,pos:135,+cov b/src/exchange/afl-tests/id:000611,src:000000,op:ext_AO,pos:135,+cov
index a52b61bf5..a52b61bf5 100644
--- a/src/mint/afl-tests/id:000611,src:000000,op:ext_AO,pos:135,+cov
+++ b/src/exchange/afl-tests/id:000611,src:000000,op:ext_AO,pos:135,+cov
diff --git a/src/mint/afl-tests/id:000611,src:000000,op:int32,pos:73,val:+100663045,+cov b/src/exchange/afl-tests/id:000611,src:000000,op:int32,pos:73,val:+100663045,+cov
index bdf37e2e6..bdf37e2e6 100644
--- a/src/mint/afl-tests/id:000611,src:000000,op:int32,pos:73,val:+100663045,+cov
+++ b/src/exchange/afl-tests/id:000611,src:000000,op:int32,pos:73,val:+100663045,+cov
diff --git a/src/mint/afl-tests/id:000612,src:000000,op:ext_AO,pos:135,+cov b/src/exchange/afl-tests/id:000612,src:000000,op:ext_AO,pos:135,+cov
index 8976ef5a8..8976ef5a8 100644
--- a/src/mint/afl-tests/id:000612,src:000000,op:ext_AO,pos:135,+cov
+++ b/src/exchange/afl-tests/id:000612,src:000000,op:ext_AO,pos:135,+cov
diff --git a/src/mint/afl-tests/id:000612,src:000000,op:int32,pos:81,val:+0,+cov b/src/exchange/afl-tests/id:000612,src:000000,op:int32,pos:81,val:+0,+cov
index ea9511a37..ea9511a37 100644
--- a/src/mint/afl-tests/id:000612,src:000000,op:int32,pos:81,val:+0,+cov
+++ b/src/exchange/afl-tests/id:000612,src:000000,op:int32,pos:81,val:+0,+cov
diff --git a/src/mint/afl-tests/id:000613,src:000000,op:ext_AO,pos:135,+cov b/src/exchange/afl-tests/id:000613,src:000000,op:ext_AO,pos:135,+cov
index 86def17de..86def17de 100644
--- a/src/mint/afl-tests/id:000613,src:000000,op:ext_AO,pos:135,+cov
+++ b/src/exchange/afl-tests/id:000613,src:000000,op:ext_AO,pos:135,+cov
diff --git a/src/mint/afl-tests/id:000613,src:000000,op:int32,pos:82,val:+32767,+cov b/src/exchange/afl-tests/id:000613,src:000000,op:int32,pos:82,val:+32767,+cov
index dbc4b58e7..dbc4b58e7 100644
--- a/src/mint/afl-tests/id:000613,src:000000,op:int32,pos:82,val:+32767,+cov
+++ b/src/exchange/afl-tests/id:000613,src:000000,op:int32,pos:82,val:+32767,+cov
diff --git a/src/mint/afl-tests/id:000614,src:000000,op:ext_AO,pos:135,+cov b/src/exchange/afl-tests/id:000614,src:000000,op:ext_AO,pos:135,+cov
index 910303eb0..910303eb0 100644
--- a/src/mint/afl-tests/id:000614,src:000000,op:ext_AO,pos:135,+cov
+++ b/src/exchange/afl-tests/id:000614,src:000000,op:ext_AO,pos:135,+cov
diff --git a/src/mint/afl-tests/id:000614,src:000000,op:int32,pos:83,val:be:+1000,+cov b/src/exchange/afl-tests/id:000614,src:000000,op:int32,pos:83,val:be:+1000,+cov
index f2855853c..f2855853c 100644
--- a/src/mint/afl-tests/id:000614,src:000000,op:int32,pos:83,val:be:+1000,+cov
+++ b/src/exchange/afl-tests/id:000614,src:000000,op:int32,pos:83,val:be:+1000,+cov
diff --git a/src/mint/afl-tests/id:000615,src:000000,op:ext_AO,pos:135,+cov b/src/exchange/afl-tests/id:000615,src:000000,op:ext_AO,pos:135,+cov
index d7ce79a99..d7ce79a99 100644
--- a/src/mint/afl-tests/id:000615,src:000000,op:ext_AO,pos:135,+cov
+++ b/src/exchange/afl-tests/id:000615,src:000000,op:ext_AO,pos:135,+cov
diff --git a/src/mint/afl-tests/id:000615,src:000000,op:int32,pos:84,val:-129,+cov b/src/exchange/afl-tests/id:000615,src:000000,op:int32,pos:84,val:-129,+cov
index e79eeeb42..e79eeeb42 100644
--- a/src/mint/afl-tests/id:000615,src:000000,op:int32,pos:84,val:-129,+cov
+++ b/src/exchange/afl-tests/id:000615,src:000000,op:int32,pos:84,val:-129,+cov
diff --git a/src/mint/afl-tests/id:000616,src:000000,op:ext_AO,pos:136,+cov b/src/exchange/afl-tests/id:000616,src:000000,op:ext_AO,pos:136,+cov
index e3035f2a4..e3035f2a4 100644
--- a/src/mint/afl-tests/id:000616,src:000000,op:ext_AO,pos:136,+cov
+++ b/src/exchange/afl-tests/id:000616,src:000000,op:ext_AO,pos:136,+cov
diff --git a/src/mint/afl-tests/id:000616,src:000000,op:int32,pos:84,val:+65536,+cov b/src/exchange/afl-tests/id:000616,src:000000,op:int32,pos:84,val:+65536,+cov
index cbce866f1..cbce866f1 100644
--- a/src/mint/afl-tests/id:000616,src:000000,op:int32,pos:84,val:+65536,+cov
+++ b/src/exchange/afl-tests/id:000616,src:000000,op:int32,pos:84,val:+65536,+cov
diff --git a/src/mint/afl-tests/id:000617,src:000000,op:ext_AO,pos:136,+cov b/src/exchange/afl-tests/id:000617,src:000000,op:ext_AO,pos:136,+cov
index 8a1d18005..8a1d18005 100644
--- a/src/mint/afl-tests/id:000617,src:000000,op:ext_AO,pos:136,+cov
+++ b/src/exchange/afl-tests/id:000617,src:000000,op:ext_AO,pos:136,+cov
diff --git a/src/mint/afl-tests/id:000617,src:000000,op:int32,pos:85,val:be:+255,+cov b/src/exchange/afl-tests/id:000617,src:000000,op:int32,pos:85,val:be:+255,+cov
index f8ed1b16b..f8ed1b16b 100644
--- a/src/mint/afl-tests/id:000617,src:000000,op:int32,pos:85,val:be:+255,+cov
+++ b/src/exchange/afl-tests/id:000617,src:000000,op:int32,pos:85,val:be:+255,+cov
diff --git a/src/mint/afl-tests/id:000618,src:000000,op:ext_AO,pos:137,+cov b/src/exchange/afl-tests/id:000618,src:000000,op:ext_AO,pos:137,+cov
index 90f5e51fe..90f5e51fe 100644
--- a/src/mint/afl-tests/id:000618,src:000000,op:ext_AO,pos:137,+cov
+++ b/src/exchange/afl-tests/id:000618,src:000000,op:ext_AO,pos:137,+cov
diff --git a/src/mint/afl-tests/id:000618,src:000000,op:int32,pos:85,val:-32769,+cov b/src/exchange/afl-tests/id:000618,src:000000,op:int32,pos:85,val:-32769,+cov
index 12571166b..12571166b 100644
--- a/src/mint/afl-tests/id:000618,src:000000,op:int32,pos:85,val:-32769,+cov
+++ b/src/exchange/afl-tests/id:000618,src:000000,op:int32,pos:85,val:-32769,+cov
diff --git a/src/mint/afl-tests/id:000619,src:000000,op:ext_AO,pos:137,+cov b/src/exchange/afl-tests/id:000619,src:000000,op:ext_AO,pos:137,+cov
index e96ebd3f9..e96ebd3f9 100644
--- a/src/mint/afl-tests/id:000619,src:000000,op:ext_AO,pos:137,+cov
+++ b/src/exchange/afl-tests/id:000619,src:000000,op:ext_AO,pos:137,+cov
diff --git a/src/mint/afl-tests/id:000619,src:000000,op:int32,pos:88,val:be:-32768,+cov b/src/exchange/afl-tests/id:000619,src:000000,op:int32,pos:88,val:be:-32768,+cov
index 94ec74c42..94ec74c42 100644
--- a/src/mint/afl-tests/id:000619,src:000000,op:int32,pos:88,val:be:-32768,+cov
+++ b/src/exchange/afl-tests/id:000619,src:000000,op:int32,pos:88,val:be:-32768,+cov
diff --git a/src/mint/afl-tests/id:000620,src:000000,op:ext_AO,pos:138,+cov b/src/exchange/afl-tests/id:000620,src:000000,op:ext_AO,pos:138,+cov
index a3e1ef509..a3e1ef509 100644
--- a/src/mint/afl-tests/id:000620,src:000000,op:ext_AO,pos:138,+cov
+++ b/src/exchange/afl-tests/id:000620,src:000000,op:ext_AO,pos:138,+cov
diff --git a/src/mint/afl-tests/id:000620,src:000000,op:int32,pos:91,val:+127,+cov b/src/exchange/afl-tests/id:000620,src:000000,op:int32,pos:91,val:+127,+cov
index cb0fa5b95..cb0fa5b95 100644
--- a/src/mint/afl-tests/id:000620,src:000000,op:int32,pos:91,val:+127,+cov
+++ b/src/exchange/afl-tests/id:000620,src:000000,op:int32,pos:91,val:+127,+cov
diff --git a/src/mint/afl-tests/id:000621,src:000000,op:ext_AO,pos:142,+cov b/src/exchange/afl-tests/id:000621,src:000000,op:ext_AO,pos:142,+cov
index e8ac2df9c..e8ac2df9c 100644
--- a/src/mint/afl-tests/id:000621,src:000000,op:ext_AO,pos:142,+cov
+++ b/src/exchange/afl-tests/id:000621,src:000000,op:ext_AO,pos:142,+cov
diff --git a/src/mint/afl-tests/id:000621,src:000000,op:int32,pos:92,val:-32768,+cov b/src/exchange/afl-tests/id:000621,src:000000,op:int32,pos:92,val:-32768,+cov
index b028d283c..b028d283c 100644
--- a/src/mint/afl-tests/id:000621,src:000000,op:int32,pos:92,val:-32768,+cov
+++ b/src/exchange/afl-tests/id:000621,src:000000,op:int32,pos:92,val:-32768,+cov
diff --git a/src/mint/afl-tests/id:000622,src:000000,op:ext_AO,pos:143,+cov b/src/exchange/afl-tests/id:000622,src:000000,op:ext_AO,pos:143,+cov
index 14f1add75..14f1add75 100644
--- a/src/mint/afl-tests/id:000622,src:000000,op:ext_AO,pos:143,+cov
+++ b/src/exchange/afl-tests/id:000622,src:000000,op:ext_AO,pos:143,+cov
diff --git a/src/mint/afl-tests/id:000622,src:000000,op:int32,pos:98,val:-129,+cov b/src/exchange/afl-tests/id:000622,src:000000,op:int32,pos:98,val:-129,+cov
index 7a3a4013d..7a3a4013d 100644
--- a/src/mint/afl-tests/id:000622,src:000000,op:int32,pos:98,val:-129,+cov
+++ b/src/exchange/afl-tests/id:000622,src:000000,op:int32,pos:98,val:-129,+cov
diff --git a/src/mint/afl-tests/id:000623,src:000000,op:ext_AO,pos:144,+cov b/src/exchange/afl-tests/id:000623,src:000000,op:ext_AO,pos:144,+cov
index dafecc248..dafecc248 100644
--- a/src/mint/afl-tests/id:000623,src:000000,op:ext_AO,pos:144,+cov
+++ b/src/exchange/afl-tests/id:000623,src:000000,op:ext_AO,pos:144,+cov
diff --git a/src/mint/afl-tests/id:000623,src:000000,op:int32,pos:128,val:-32769,+cov b/src/exchange/afl-tests/id:000623,src:000000,op:int32,pos:128,val:-32769,+cov
index 6f1390a02..6f1390a02 100644
--- a/src/mint/afl-tests/id:000623,src:000000,op:int32,pos:128,val:-32769,+cov
+++ b/src/exchange/afl-tests/id:000623,src:000000,op:int32,pos:128,val:-32769,+cov
diff --git a/src/mint/afl-tests/id:000624,src:000000,op:ext_AO,pos:144,+cov b/src/exchange/afl-tests/id:000624,src:000000,op:ext_AO,pos:144,+cov
index d6c83a418..d6c83a418 100644
--- a/src/mint/afl-tests/id:000624,src:000000,op:ext_AO,pos:144,+cov
+++ b/src/exchange/afl-tests/id:000624,src:000000,op:ext_AO,pos:144,+cov
diff --git a/src/mint/afl-tests/id:000624,src:000000,op:int32,pos:160,val:be:+512,+cov b/src/exchange/afl-tests/id:000624,src:000000,op:int32,pos:160,val:be:+512,+cov
index 1deea2e62..1deea2e62 100644
--- a/src/mint/afl-tests/id:000624,src:000000,op:int32,pos:160,val:be:+512,+cov
+++ b/src/exchange/afl-tests/id:000624,src:000000,op:int32,pos:160,val:be:+512,+cov
diff --git a/src/mint/afl-tests/id:000625,src:000000,op:ext_AO,pos:145,+cov b/src/exchange/afl-tests/id:000625,src:000000,op:ext_AO,pos:145,+cov
index 4b2cd1cdc..4b2cd1cdc 100644
--- a/src/mint/afl-tests/id:000625,src:000000,op:ext_AO,pos:145,+cov
+++ b/src/exchange/afl-tests/id:000625,src:000000,op:ext_AO,pos:145,+cov
diff --git a/src/mint/afl-tests/id:000625,src:000000,op:int32,pos:203,val:be:+1,+cov b/src/exchange/afl-tests/id:000625,src:000000,op:int32,pos:203,val:be:+1,+cov
index f6766c47e..f6766c47e 100644
--- a/src/mint/afl-tests/id:000625,src:000000,op:int32,pos:203,val:be:+1,+cov
+++ b/src/exchange/afl-tests/id:000625,src:000000,op:int32,pos:203,val:be:+1,+cov
diff --git a/src/mint/afl-tests/id:000626,src:000000,op:ext_AO,pos:146,+cov b/src/exchange/afl-tests/id:000626,src:000000,op:ext_AO,pos:146,+cov
index 6e4a7a142..6e4a7a142 100644
--- a/src/mint/afl-tests/id:000626,src:000000,op:ext_AO,pos:146,+cov
+++ b/src/exchange/afl-tests/id:000626,src:000000,op:ext_AO,pos:146,+cov
diff --git a/src/mint/afl-tests/id:000626,src:000000,op:int32,pos:263,val:+0,+cov b/src/exchange/afl-tests/id:000626,src:000000,op:int32,pos:263,val:+0,+cov
index afbb36a51..afbb36a51 100644
--- a/src/mint/afl-tests/id:000626,src:000000,op:int32,pos:263,val:+0,+cov
+++ b/src/exchange/afl-tests/id:000626,src:000000,op:int32,pos:263,val:+0,+cov
diff --git a/src/mint/afl-tests/id:000627,src:000000,op:ext_AO,pos:146,+cov b/src/exchange/afl-tests/id:000627,src:000000,op:ext_AO,pos:146,+cov
index 0d7b09410..0d7b09410 100644
--- a/src/mint/afl-tests/id:000627,src:000000,op:ext_AO,pos:146,+cov
+++ b/src/exchange/afl-tests/id:000627,src:000000,op:ext_AO,pos:146,+cov
diff --git a/src/mint/afl-tests/id:000627,src:000000,op:int32,pos:264,val:be:-32769,+cov b/src/exchange/afl-tests/id:000627,src:000000,op:int32,pos:264,val:be:-32769,+cov
index 8cf21b635..8cf21b635 100644
--- a/src/mint/afl-tests/id:000627,src:000000,op:int32,pos:264,val:be:-32769,+cov
+++ b/src/exchange/afl-tests/id:000627,src:000000,op:int32,pos:264,val:be:-32769,+cov
diff --git a/src/mint/afl-tests/id:000628,src:000000,op:ext_AO,pos:147,+cov b/src/exchange/afl-tests/id:000628,src:000000,op:ext_AO,pos:147,+cov
index ff86f51a4..ff86f51a4 100644
--- a/src/mint/afl-tests/id:000628,src:000000,op:ext_AO,pos:147,+cov
+++ b/src/exchange/afl-tests/id:000628,src:000000,op:ext_AO,pos:147,+cov
diff --git a/src/mint/afl-tests/id:000628,src:000000,op:int32,pos:285,val:+100663045,+cov b/src/exchange/afl-tests/id:000628,src:000000,op:int32,pos:285,val:+100663045,+cov
index 0e675506a..0e675506a 100644
--- a/src/mint/afl-tests/id:000628,src:000000,op:int32,pos:285,val:+100663045,+cov
+++ b/src/exchange/afl-tests/id:000628,src:000000,op:int32,pos:285,val:+100663045,+cov
diff --git a/src/mint/afl-tests/id:000629,src:000000,op:ext_AO,pos:147,+cov b/src/exchange/afl-tests/id:000629,src:000000,op:ext_AO,pos:147,+cov
index ee843bb56..ee843bb56 100644
--- a/src/mint/afl-tests/id:000629,src:000000,op:ext_AO,pos:147,+cov
+++ b/src/exchange/afl-tests/id:000629,src:000000,op:ext_AO,pos:147,+cov
diff --git a/src/mint/afl-tests/id:000629,src:000000,op:ext_AO,pos:34,+cov b/src/exchange/afl-tests/id:000629,src:000000,op:ext_AO,pos:34,+cov
index cc3d06f93..cc3d06f93 100644
--- a/src/mint/afl-tests/id:000629,src:000000,op:ext_AO,pos:34,+cov
+++ b/src/exchange/afl-tests/id:000629,src:000000,op:ext_AO,pos:34,+cov
diff --git a/src/mint/afl-tests/id:000630,src:000000,op:ext_AO,pos:148,+cov b/src/exchange/afl-tests/id:000630,src:000000,op:ext_AO,pos:148,+cov
index f77decdbb..f77decdbb 100644
--- a/src/mint/afl-tests/id:000630,src:000000,op:ext_AO,pos:148,+cov
+++ b/src/exchange/afl-tests/id:000630,src:000000,op:ext_AO,pos:148,+cov
diff --git a/src/mint/afl-tests/id:000630,src:000000,op:ext_AO,pos:34,+cov b/src/exchange/afl-tests/id:000630,src:000000,op:ext_AO,pos:34,+cov
index 5cce5e9f4..5cce5e9f4 100644
--- a/src/mint/afl-tests/id:000630,src:000000,op:ext_AO,pos:34,+cov
+++ b/src/exchange/afl-tests/id:000630,src:000000,op:ext_AO,pos:34,+cov
diff --git a/src/mint/afl-tests/id:000631,src:000000,op:ext_AO,pos:148 b/src/exchange/afl-tests/id:000631,src:000000,op:ext_AO,pos:148
index 7e9a70a33..7e9a70a33 100644
--- a/src/mint/afl-tests/id:000631,src:000000,op:ext_AO,pos:148
+++ b/src/exchange/afl-tests/id:000631,src:000000,op:ext_AO,pos:148
diff --git a/src/mint/afl-tests/id:000631,src:000000,op:ext_AO,pos:37,+cov b/src/exchange/afl-tests/id:000631,src:000000,op:ext_AO,pos:37,+cov
index c9c21d4b6..c9c21d4b6 100644
--- a/src/mint/afl-tests/id:000631,src:000000,op:ext_AO,pos:37,+cov
+++ b/src/exchange/afl-tests/id:000631,src:000000,op:ext_AO,pos:37,+cov
diff --git a/src/mint/afl-tests/id:000632,src:000000,op:ext_AO,pos:149,+cov b/src/exchange/afl-tests/id:000632,src:000000,op:ext_AO,pos:149,+cov
index 94ab1358b..94ab1358b 100644
--- a/src/mint/afl-tests/id:000632,src:000000,op:ext_AO,pos:149,+cov
+++ b/src/exchange/afl-tests/id:000632,src:000000,op:ext_AO,pos:149,+cov
diff --git a/src/mint/afl-tests/id:000632,src:000000,op:ext_AO,pos:39,+cov b/src/exchange/afl-tests/id:000632,src:000000,op:ext_AO,pos:39,+cov
index 4d1eb5e56..4d1eb5e56 100644
--- a/src/mint/afl-tests/id:000632,src:000000,op:ext_AO,pos:39,+cov
+++ b/src/exchange/afl-tests/id:000632,src:000000,op:ext_AO,pos:39,+cov
diff --git a/src/mint/afl-tests/id:000633,src:000000,op:ext_AO,pos:152,+cov b/src/exchange/afl-tests/id:000633,src:000000,op:ext_AO,pos:152,+cov
index fe43072ea..fe43072ea 100644
--- a/src/mint/afl-tests/id:000633,src:000000,op:ext_AO,pos:152,+cov
+++ b/src/exchange/afl-tests/id:000633,src:000000,op:ext_AO,pos:152,+cov
diff --git a/src/mint/afl-tests/id:000633,src:000000,op:ext_AO,pos:49,+cov b/src/exchange/afl-tests/id:000633,src:000000,op:ext_AO,pos:49,+cov
index 847873c6a..847873c6a 100644
--- a/src/mint/afl-tests/id:000633,src:000000,op:ext_AO,pos:49,+cov
+++ b/src/exchange/afl-tests/id:000633,src:000000,op:ext_AO,pos:49,+cov
diff --git a/src/mint/afl-tests/id:000634,src:000000,op:ext_AO,pos:154 b/src/exchange/afl-tests/id:000634,src:000000,op:ext_AO,pos:154
index 8e81e7169..8e81e7169 100644
--- a/src/mint/afl-tests/id:000634,src:000000,op:ext_AO,pos:154
+++ b/src/exchange/afl-tests/id:000634,src:000000,op:ext_AO,pos:154
diff --git a/src/mint/afl-tests/id:000634,src:000000,op:ext_AO,pos:51,+cov b/src/exchange/afl-tests/id:000634,src:000000,op:ext_AO,pos:51,+cov
index ae5057d7a..ae5057d7a 100644
--- a/src/mint/afl-tests/id:000634,src:000000,op:ext_AO,pos:51,+cov
+++ b/src/exchange/afl-tests/id:000634,src:000000,op:ext_AO,pos:51,+cov
diff --git a/src/mint/afl-tests/id:000635,src:000000,op:ext_AO,pos:155,+cov b/src/exchange/afl-tests/id:000635,src:000000,op:ext_AO,pos:155,+cov
index 2c7f95073..2c7f95073 100644
--- a/src/mint/afl-tests/id:000635,src:000000,op:ext_AO,pos:155,+cov
+++ b/src/exchange/afl-tests/id:000635,src:000000,op:ext_AO,pos:155,+cov
diff --git a/src/mint/afl-tests/id:000635,src:000000,op:ext_AO,pos:52,+cov b/src/exchange/afl-tests/id:000635,src:000000,op:ext_AO,pos:52,+cov
index 78724df11..78724df11 100644
--- a/src/mint/afl-tests/id:000635,src:000000,op:ext_AO,pos:52,+cov
+++ b/src/exchange/afl-tests/id:000635,src:000000,op:ext_AO,pos:52,+cov
diff --git a/src/mint/afl-tests/id:000636,src:000000,op:ext_AO,pos:156,+cov b/src/exchange/afl-tests/id:000636,src:000000,op:ext_AO,pos:156,+cov
index 2720102ef..2720102ef 100644
--- a/src/mint/afl-tests/id:000636,src:000000,op:ext_AO,pos:156,+cov
+++ b/src/exchange/afl-tests/id:000636,src:000000,op:ext_AO,pos:156,+cov
diff --git a/src/mint/afl-tests/id:000636,src:000000,op:ext_AO,pos:52,+cov b/src/exchange/afl-tests/id:000636,src:000000,op:ext_AO,pos:52,+cov
index 46cd3c17c..46cd3c17c 100644
--- a/src/mint/afl-tests/id:000636,src:000000,op:ext_AO,pos:52,+cov
+++ b/src/exchange/afl-tests/id:000636,src:000000,op:ext_AO,pos:52,+cov
diff --git a/src/mint/afl-tests/id:000637,src:000000,op:ext_AO,pos:157 b/src/exchange/afl-tests/id:000637,src:000000,op:ext_AO,pos:157
index badf57384..badf57384 100644
--- a/src/mint/afl-tests/id:000637,src:000000,op:ext_AO,pos:157
+++ b/src/exchange/afl-tests/id:000637,src:000000,op:ext_AO,pos:157
diff --git a/src/mint/afl-tests/id:000637,src:000000,op:ext_AO,pos:58,+cov b/src/exchange/afl-tests/id:000637,src:000000,op:ext_AO,pos:58,+cov
index 70b4664ee..70b4664ee 100644
--- a/src/mint/afl-tests/id:000637,src:000000,op:ext_AO,pos:58,+cov
+++ b/src/exchange/afl-tests/id:000637,src:000000,op:ext_AO,pos:58,+cov
diff --git a/src/mint/afl-tests/id:000638,src:000000,op:ext_AO,pos:159,+cov b/src/exchange/afl-tests/id:000638,src:000000,op:ext_AO,pos:159,+cov
index 4d637f622..4d637f622 100644
--- a/src/mint/afl-tests/id:000638,src:000000,op:ext_AO,pos:159,+cov
+++ b/src/exchange/afl-tests/id:000638,src:000000,op:ext_AO,pos:159,+cov
diff --git a/src/mint/afl-tests/id:000638,src:000000,op:ext_AO,pos:64,+cov b/src/exchange/afl-tests/id:000638,src:000000,op:ext_AO,pos:64,+cov
index a4f0265ac..a4f0265ac 100644
--- a/src/mint/afl-tests/id:000638,src:000000,op:ext_AO,pos:64,+cov
+++ b/src/exchange/afl-tests/id:000638,src:000000,op:ext_AO,pos:64,+cov
diff --git a/src/mint/afl-tests/id:000639,src:000000,op:ext_AO,pos:161,+cov b/src/exchange/afl-tests/id:000639,src:000000,op:ext_AO,pos:161,+cov
index 834a625b2..834a625b2 100644
--- a/src/mint/afl-tests/id:000639,src:000000,op:ext_AO,pos:161,+cov
+++ b/src/exchange/afl-tests/id:000639,src:000000,op:ext_AO,pos:161,+cov
diff --git a/src/mint/afl-tests/id:000639,src:000000,op:ext_AO,pos:86,+cov b/src/exchange/afl-tests/id:000639,src:000000,op:ext_AO,pos:86,+cov
index e4e9bbcc2..e4e9bbcc2 100644
--- a/src/mint/afl-tests/id:000639,src:000000,op:ext_AO,pos:86,+cov
+++ b/src/exchange/afl-tests/id:000639,src:000000,op:ext_AO,pos:86,+cov
diff --git a/src/mint/afl-tests/id:000640,src:000000,op:ext_AO,pos:166,+cov b/src/exchange/afl-tests/id:000640,src:000000,op:ext_AO,pos:166,+cov
index 564a35643..564a35643 100644
--- a/src/mint/afl-tests/id:000640,src:000000,op:ext_AO,pos:166,+cov
+++ b/src/exchange/afl-tests/id:000640,src:000000,op:ext_AO,pos:166,+cov
diff --git a/src/mint/afl-tests/id:000640,src:000000,op:ext_AO,pos:88,+cov b/src/exchange/afl-tests/id:000640,src:000000,op:ext_AO,pos:88,+cov
index bcc90b4a5..bcc90b4a5 100644
--- a/src/mint/afl-tests/id:000640,src:000000,op:ext_AO,pos:88,+cov
+++ b/src/exchange/afl-tests/id:000640,src:000000,op:ext_AO,pos:88,+cov
diff --git a/src/mint/afl-tests/id:000641,src:000000,op:ext_AO,pos:168,+cov b/src/exchange/afl-tests/id:000641,src:000000,op:ext_AO,pos:168,+cov
index 09adf0f06..09adf0f06 100644
--- a/src/mint/afl-tests/id:000641,src:000000,op:ext_AO,pos:168,+cov
+++ b/src/exchange/afl-tests/id:000641,src:000000,op:ext_AO,pos:168,+cov
diff --git a/src/mint/afl-tests/id:000641,src:000000,op:ext_AO,pos:93,+cov b/src/exchange/afl-tests/id:000641,src:000000,op:ext_AO,pos:93,+cov
index f7c40c1ac..f7c40c1ac 100644
--- a/src/mint/afl-tests/id:000641,src:000000,op:ext_AO,pos:93,+cov
+++ b/src/exchange/afl-tests/id:000641,src:000000,op:ext_AO,pos:93,+cov
diff --git a/src/mint/afl-tests/id:000642,src:000000,op:ext_AO,pos:135,+cov b/src/exchange/afl-tests/id:000642,src:000000,op:ext_AO,pos:135,+cov
index b84cd74b3..b84cd74b3 100644
--- a/src/mint/afl-tests/id:000642,src:000000,op:ext_AO,pos:135,+cov
+++ b/src/exchange/afl-tests/id:000642,src:000000,op:ext_AO,pos:135,+cov
diff --git a/src/mint/afl-tests/id:000642,src:000000,op:ext_AO,pos:169,+cov b/src/exchange/afl-tests/id:000642,src:000000,op:ext_AO,pos:169,+cov
index 86c01fb33..86c01fb33 100644
--- a/src/mint/afl-tests/id:000642,src:000000,op:ext_AO,pos:169,+cov
+++ b/src/exchange/afl-tests/id:000642,src:000000,op:ext_AO,pos:169,+cov
diff --git a/src/mint/afl-tests/id:000643,src:000000,op:ext_AO,pos:136,+cov b/src/exchange/afl-tests/id:000643,src:000000,op:ext_AO,pos:136,+cov
index cef8d7154..cef8d7154 100644
--- a/src/mint/afl-tests/id:000643,src:000000,op:ext_AO,pos:136,+cov
+++ b/src/exchange/afl-tests/id:000643,src:000000,op:ext_AO,pos:136,+cov
diff --git a/src/mint/afl-tests/id:000643,src:000000,op:ext_AO,pos:173,+cov b/src/exchange/afl-tests/id:000643,src:000000,op:ext_AO,pos:173,+cov
index ee287ac69..ee287ac69 100644
--- a/src/mint/afl-tests/id:000643,src:000000,op:ext_AO,pos:173,+cov
+++ b/src/exchange/afl-tests/id:000643,src:000000,op:ext_AO,pos:173,+cov
diff --git a/src/mint/afl-tests/id:000644,src:000000,op:ext_AO,pos:138,+cov b/src/exchange/afl-tests/id:000644,src:000000,op:ext_AO,pos:138,+cov
index 7c05ea6c7..7c05ea6c7 100644
--- a/src/mint/afl-tests/id:000644,src:000000,op:ext_AO,pos:138,+cov
+++ b/src/exchange/afl-tests/id:000644,src:000000,op:ext_AO,pos:138,+cov
diff --git a/src/mint/afl-tests/id:000644,src:000000,op:ext_AO,pos:174,+cov b/src/exchange/afl-tests/id:000644,src:000000,op:ext_AO,pos:174,+cov
index c8ecd5b05..c8ecd5b05 100644
--- a/src/mint/afl-tests/id:000644,src:000000,op:ext_AO,pos:174,+cov
+++ b/src/exchange/afl-tests/id:000644,src:000000,op:ext_AO,pos:174,+cov
diff --git a/src/mint/afl-tests/id:000645,src:000000,op:ext_AO,pos:140,+cov b/src/exchange/afl-tests/id:000645,src:000000,op:ext_AO,pos:140,+cov
index 69a20ba21..69a20ba21 100644
--- a/src/mint/afl-tests/id:000645,src:000000,op:ext_AO,pos:140,+cov
+++ b/src/exchange/afl-tests/id:000645,src:000000,op:ext_AO,pos:140,+cov
diff --git a/src/mint/afl-tests/id:000645,src:000000,op:ext_AO,pos:174,+cov b/src/exchange/afl-tests/id:000645,src:000000,op:ext_AO,pos:174,+cov
index e195384f7..e195384f7 100644
--- a/src/mint/afl-tests/id:000645,src:000000,op:ext_AO,pos:174,+cov
+++ b/src/exchange/afl-tests/id:000645,src:000000,op:ext_AO,pos:174,+cov
diff --git a/src/mint/afl-tests/id:000646,src:000000,op:ext_AO,pos:143,+cov b/src/exchange/afl-tests/id:000646,src:000000,op:ext_AO,pos:143,+cov
index 8e0f8560c..8e0f8560c 100644
--- a/src/mint/afl-tests/id:000646,src:000000,op:ext_AO,pos:143,+cov
+++ b/src/exchange/afl-tests/id:000646,src:000000,op:ext_AO,pos:143,+cov
diff --git a/src/mint/afl-tests/id:000646,src:000000,op:ext_AO,pos:184,+cov b/src/exchange/afl-tests/id:000646,src:000000,op:ext_AO,pos:184,+cov
index 8b17a9821..8b17a9821 100644
--- a/src/mint/afl-tests/id:000646,src:000000,op:ext_AO,pos:184,+cov
+++ b/src/exchange/afl-tests/id:000646,src:000000,op:ext_AO,pos:184,+cov
diff --git a/src/mint/afl-tests/id:000647,src:000000,op:ext_AO,pos:144,+cov b/src/exchange/afl-tests/id:000647,src:000000,op:ext_AO,pos:144,+cov
index f25b06780..f25b06780 100644
--- a/src/mint/afl-tests/id:000647,src:000000,op:ext_AO,pos:144,+cov
+++ b/src/exchange/afl-tests/id:000647,src:000000,op:ext_AO,pos:144,+cov
diff --git a/src/mint/afl-tests/id:000647,src:000000,op:ext_AO,pos:191,+cov b/src/exchange/afl-tests/id:000647,src:000000,op:ext_AO,pos:191,+cov
index 677678b5d..677678b5d 100644
--- a/src/mint/afl-tests/id:000647,src:000000,op:ext_AO,pos:191,+cov
+++ b/src/exchange/afl-tests/id:000647,src:000000,op:ext_AO,pos:191,+cov
diff --git a/src/mint/afl-tests/id:000648,src:000000,op:ext_AO,pos:155,+cov b/src/exchange/afl-tests/id:000648,src:000000,op:ext_AO,pos:155,+cov
index 06d082e76..06d082e76 100644
--- a/src/mint/afl-tests/id:000648,src:000000,op:ext_AO,pos:155,+cov
+++ b/src/exchange/afl-tests/id:000648,src:000000,op:ext_AO,pos:155,+cov
diff --git a/src/mint/afl-tests/id:000648,src:000000,op:ext_AO,pos:216,+cov b/src/exchange/afl-tests/id:000648,src:000000,op:ext_AO,pos:216,+cov
index b0bebb4df..b0bebb4df 100644
--- a/src/mint/afl-tests/id:000648,src:000000,op:ext_AO,pos:216,+cov
+++ b/src/exchange/afl-tests/id:000648,src:000000,op:ext_AO,pos:216,+cov
diff --git a/src/mint/afl-tests/id:000649,src:000000,op:ext_AO,pos:166,+cov b/src/exchange/afl-tests/id:000649,src:000000,op:ext_AO,pos:166,+cov
index 5cd10dd47..5cd10dd47 100644
--- a/src/mint/afl-tests/id:000649,src:000000,op:ext_AO,pos:166,+cov
+++ b/src/exchange/afl-tests/id:000649,src:000000,op:ext_AO,pos:166,+cov
diff --git a/src/mint/afl-tests/id:000649,src:000000,op:ext_AO,pos:236,+cov b/src/exchange/afl-tests/id:000649,src:000000,op:ext_AO,pos:236,+cov
index 718b3e801..718b3e801 100644
--- a/src/mint/afl-tests/id:000649,src:000000,op:ext_AO,pos:236,+cov
+++ b/src/exchange/afl-tests/id:000649,src:000000,op:ext_AO,pos:236,+cov
diff --git a/src/mint/afl-tests/id:000650,src:000000,op:ext_AO,pos:166,+cov b/src/exchange/afl-tests/id:000650,src:000000,op:ext_AO,pos:166,+cov
index ac8dcb24d..ac8dcb24d 100644
--- a/src/mint/afl-tests/id:000650,src:000000,op:ext_AO,pos:166,+cov
+++ b/src/exchange/afl-tests/id:000650,src:000000,op:ext_AO,pos:166,+cov
diff --git a/src/mint/afl-tests/id:000650,src:000000,op:ext_AO,pos:270,+cov b/src/exchange/afl-tests/id:000650,src:000000,op:ext_AO,pos:270,+cov
index dc4210b2d..dc4210b2d 100644
--- a/src/mint/afl-tests/id:000650,src:000000,op:ext_AO,pos:270,+cov
+++ b/src/exchange/afl-tests/id:000650,src:000000,op:ext_AO,pos:270,+cov
diff --git a/src/mint/afl-tests/id:000651,src:000000,op:ext_AO,pos:173,+cov b/src/exchange/afl-tests/id:000651,src:000000,op:ext_AO,pos:173,+cov
index 58291cb5a..58291cb5a 100644
--- a/src/mint/afl-tests/id:000651,src:000000,op:ext_AO,pos:173,+cov
+++ b/src/exchange/afl-tests/id:000651,src:000000,op:ext_AO,pos:173,+cov
diff --git a/src/mint/afl-tests/id:000651,src:000000,op:ext_AO,pos:270,+cov b/src/exchange/afl-tests/id:000651,src:000000,op:ext_AO,pos:270,+cov
index 2158953af..2158953af 100644
--- a/src/mint/afl-tests/id:000651,src:000000,op:ext_AO,pos:270,+cov
+++ b/src/exchange/afl-tests/id:000651,src:000000,op:ext_AO,pos:270,+cov
diff --git a/src/mint/afl-tests/id:000652,src:000000,op:ext_AO,pos:175,+cov b/src/exchange/afl-tests/id:000652,src:000000,op:ext_AO,pos:175,+cov
index 6824cf415..6824cf415 100644
--- a/src/mint/afl-tests/id:000652,src:000000,op:ext_AO,pos:175,+cov
+++ b/src/exchange/afl-tests/id:000652,src:000000,op:ext_AO,pos:175,+cov
diff --git a/src/mint/afl-tests/id:000652,src:000000,op:ext_AO,pos:272,+cov b/src/exchange/afl-tests/id:000652,src:000000,op:ext_AO,pos:272,+cov
index f0baddfe8..f0baddfe8 100644
--- a/src/mint/afl-tests/id:000652,src:000000,op:ext_AO,pos:272,+cov
+++ b/src/exchange/afl-tests/id:000652,src:000000,op:ext_AO,pos:272,+cov
diff --git a/src/mint/afl-tests/id:000653,src:000000,op:ext_AO,pos:176,+cov b/src/exchange/afl-tests/id:000653,src:000000,op:ext_AO,pos:176,+cov
index dc4bf4c2e..dc4bf4c2e 100644
--- a/src/mint/afl-tests/id:000653,src:000000,op:ext_AO,pos:176,+cov
+++ b/src/exchange/afl-tests/id:000653,src:000000,op:ext_AO,pos:176,+cov
diff --git a/src/mint/afl-tests/id:000653,src:000000,op:ext_AO,pos:283,+cov b/src/exchange/afl-tests/id:000653,src:000000,op:ext_AO,pos:283,+cov
index b936e800d..b936e800d 100644
--- a/src/mint/afl-tests/id:000653,src:000000,op:ext_AO,pos:283,+cov
+++ b/src/exchange/afl-tests/id:000653,src:000000,op:ext_AO,pos:283,+cov
diff --git a/src/mint/afl-tests/id:000654,src:000000,op:ext_AO,pos:177,+cov b/src/exchange/afl-tests/id:000654,src:000000,op:ext_AO,pos:177,+cov
index 95b9a73b5..95b9a73b5 100644
--- a/src/mint/afl-tests/id:000654,src:000000,op:ext_AO,pos:177,+cov
+++ b/src/exchange/afl-tests/id:000654,src:000000,op:ext_AO,pos:177,+cov
diff --git a/src/mint/afl-tests/id:000654,src:000000,op:ext_AO,pos:305,+cov b/src/exchange/afl-tests/id:000654,src:000000,op:ext_AO,pos:305,+cov
index addd57fea..addd57fea 100644
--- a/src/mint/afl-tests/id:000654,src:000000,op:ext_AO,pos:305,+cov
+++ b/src/exchange/afl-tests/id:000654,src:000000,op:ext_AO,pos:305,+cov
diff --git a/src/mint/afl-tests/id:000655,src:000000,op:ext_AO,pos:177,+cov b/src/exchange/afl-tests/id:000655,src:000000,op:ext_AO,pos:177,+cov
index 03fcb96d8..03fcb96d8 100644
--- a/src/mint/afl-tests/id:000655,src:000000,op:ext_AO,pos:177,+cov
+++ b/src/exchange/afl-tests/id:000655,src:000000,op:ext_AO,pos:177,+cov
diff --git a/src/mint/afl-tests/id:000655,src:000000,op:ext_AO,pos:305,+cov b/src/exchange/afl-tests/id:000655,src:000000,op:ext_AO,pos:305,+cov
index 20cfec7b0..20cfec7b0 100644
--- a/src/mint/afl-tests/id:000655,src:000000,op:ext_AO,pos:305,+cov
+++ b/src/exchange/afl-tests/id:000655,src:000000,op:ext_AO,pos:305,+cov
diff --git a/src/mint/afl-tests/id:000656,src:000000,op:ext_AO,pos:177,+cov b/src/exchange/afl-tests/id:000656,src:000000,op:ext_AO,pos:177,+cov
index a10edac6b..a10edac6b 100644
--- a/src/mint/afl-tests/id:000656,src:000000,op:ext_AO,pos:177,+cov
+++ b/src/exchange/afl-tests/id:000656,src:000000,op:ext_AO,pos:177,+cov
diff --git a/src/mint/afl-tests/id:000656,src:000000,op:ext_AO,pos:313,+cov b/src/exchange/afl-tests/id:000656,src:000000,op:ext_AO,pos:313,+cov
index a91439c67..a91439c67 100644
--- a/src/mint/afl-tests/id:000656,src:000000,op:ext_AO,pos:313,+cov
+++ b/src/exchange/afl-tests/id:000656,src:000000,op:ext_AO,pos:313,+cov
diff --git a/src/mint/afl-tests/id:000657,src:000000,op:ext_AO,pos:180,+cov b/src/exchange/afl-tests/id:000657,src:000000,op:ext_AO,pos:180,+cov
index cd808e41c..cd808e41c 100644
--- a/src/mint/afl-tests/id:000657,src:000000,op:ext_AO,pos:180,+cov
+++ b/src/exchange/afl-tests/id:000657,src:000000,op:ext_AO,pos:180,+cov
diff --git a/src/mint/afl-tests/id:000657,src:000000,op:ext_AO,pos:315,+cov b/src/exchange/afl-tests/id:000657,src:000000,op:ext_AO,pos:315,+cov
index 4ae499e68..4ae499e68 100644
--- a/src/mint/afl-tests/id:000657,src:000000,op:ext_AO,pos:315,+cov
+++ b/src/exchange/afl-tests/id:000657,src:000000,op:ext_AO,pos:315,+cov
diff --git a/src/mint/afl-tests/id:000658,src:000000,op:ext_AO,pos:182,+cov b/src/exchange/afl-tests/id:000658,src:000000,op:ext_AO,pos:182,+cov
index edbf60217..edbf60217 100644
--- a/src/mint/afl-tests/id:000658,src:000000,op:ext_AO,pos:182,+cov
+++ b/src/exchange/afl-tests/id:000658,src:000000,op:ext_AO,pos:182,+cov
diff --git a/src/mint/afl-tests/id:000658,src:000000,op:ext_AO,pos:326 b/src/exchange/afl-tests/id:000658,src:000000,op:ext_AO,pos:326
index 3041455e7..3041455e7 100644
--- a/src/mint/afl-tests/id:000658,src:000000,op:ext_AO,pos:326
+++ b/src/exchange/afl-tests/id:000658,src:000000,op:ext_AO,pos:326
diff --git a/src/mint/afl-tests/id:000659,src:000000,op:ext_AO,pos:269,+cov b/src/exchange/afl-tests/id:000659,src:000000,op:ext_AO,pos:269,+cov
index b376590f6..b376590f6 100644
--- a/src/mint/afl-tests/id:000659,src:000000,op:ext_AO,pos:269,+cov
+++ b/src/exchange/afl-tests/id:000659,src:000000,op:ext_AO,pos:269,+cov
diff --git a/src/mint/afl-tests/id:000659,src:000000,op:havoc,rep:4 b/src/exchange/afl-tests/id:000659,src:000000,op:havoc,rep:4
index 5dcfe5fdc..5dcfe5fdc 100644
--- a/src/mint/afl-tests/id:000659,src:000000,op:havoc,rep:4
+++ b/src/exchange/afl-tests/id:000659,src:000000,op:havoc,rep:4
diff --git a/src/mint/afl-tests/id:000660,src:000000,op:ext_AO,pos:270,+cov b/src/exchange/afl-tests/id:000660,src:000000,op:ext_AO,pos:270,+cov
index f0d727704..f0d727704 100644
--- a/src/mint/afl-tests/id:000660,src:000000,op:ext_AO,pos:270,+cov
+++ b/src/exchange/afl-tests/id:000660,src:000000,op:ext_AO,pos:270,+cov
diff --git a/src/mint/afl-tests/id:000660,src:000000,op:havoc,rep:32 b/src/exchange/afl-tests/id:000660,src:000000,op:havoc,rep:32
index dd32b50cb..dd32b50cb 100644
--- a/src/mint/afl-tests/id:000660,src:000000,op:havoc,rep:32
+++ b/src/exchange/afl-tests/id:000660,src:000000,op:havoc,rep:32
diff --git a/src/mint/afl-tests/id:000661,src:000000,op:ext_AO,pos:271,+cov b/src/exchange/afl-tests/id:000661,src:000000,op:ext_AO,pos:271,+cov
index adcffb913..adcffb913 100644
--- a/src/mint/afl-tests/id:000661,src:000000,op:ext_AO,pos:271,+cov
+++ b/src/exchange/afl-tests/id:000661,src:000000,op:ext_AO,pos:271,+cov
diff --git a/src/mint/afl-tests/id:000661,src:000000,op:havoc,rep:4 b/src/exchange/afl-tests/id:000661,src:000000,op:havoc,rep:4
index 67e813dfc..67e813dfc 100644
--- a/src/mint/afl-tests/id:000661,src:000000,op:havoc,rep:4
+++ b/src/exchange/afl-tests/id:000661,src:000000,op:havoc,rep:4
diff --git a/src/mint/afl-tests/id:000662,src:000000,op:ext_AO,pos:274,+cov b/src/exchange/afl-tests/id:000662,src:000000,op:ext_AO,pos:274,+cov
index f37b3c188..f37b3c188 100644
--- a/src/mint/afl-tests/id:000662,src:000000,op:ext_AO,pos:274,+cov
+++ b/src/exchange/afl-tests/id:000662,src:000000,op:ext_AO,pos:274,+cov
diff --git a/src/mint/afl-tests/id:000662,src:000000,op:havoc,rep:128 b/src/exchange/afl-tests/id:000662,src:000000,op:havoc,rep:128
index 0bee01e14..0bee01e14 100644
--- a/src/mint/afl-tests/id:000662,src:000000,op:havoc,rep:128
+++ b/src/exchange/afl-tests/id:000662,src:000000,op:havoc,rep:128
diff --git a/src/mint/afl-tests/id:000663,src:000000,op:ext_AO,pos:275,+cov b/src/exchange/afl-tests/id:000663,src:000000,op:ext_AO,pos:275,+cov
index 54388381f..54388381f 100644
--- a/src/mint/afl-tests/id:000663,src:000000,op:ext_AO,pos:275,+cov
+++ b/src/exchange/afl-tests/id:000663,src:000000,op:ext_AO,pos:275,+cov
diff --git a/src/mint/afl-tests/id:000663,src:000000,op:havoc,rep:32 b/src/exchange/afl-tests/id:000663,src:000000,op:havoc,rep:32
index 123364746..123364746 100644
--- a/src/mint/afl-tests/id:000663,src:000000,op:havoc,rep:32
+++ b/src/exchange/afl-tests/id:000663,src:000000,op:havoc,rep:32
diff --git a/src/mint/afl-tests/id:000664,src:000000,op:ext_AO,pos:305,+cov b/src/exchange/afl-tests/id:000664,src:000000,op:ext_AO,pos:305,+cov
index b5739241d..b5739241d 100644
--- a/src/mint/afl-tests/id:000664,src:000000,op:ext_AO,pos:305,+cov
+++ b/src/exchange/afl-tests/id:000664,src:000000,op:ext_AO,pos:305,+cov
diff --git a/src/mint/afl-tests/id:000664,src:000000,op:havoc,rep:128 b/src/exchange/afl-tests/id:000664,src:000000,op:havoc,rep:128
index a222c4d9a..a222c4d9a 100644
--- a/src/mint/afl-tests/id:000664,src:000000,op:havoc,rep:128
+++ b/src/exchange/afl-tests/id:000664,src:000000,op:havoc,rep:128
diff --git a/src/mint/afl-tests/id:000665,src:000000,op:ext_AO,pos:312,+cov b/src/exchange/afl-tests/id:000665,src:000000,op:ext_AO,pos:312,+cov
index bd28837ad..bd28837ad 100644
--- a/src/mint/afl-tests/id:000665,src:000000,op:ext_AO,pos:312,+cov
+++ b/src/exchange/afl-tests/id:000665,src:000000,op:ext_AO,pos:312,+cov
diff --git a/src/mint/afl-tests/id:000665,src:000000,op:havoc,rep:16,+cov b/src/exchange/afl-tests/id:000665,src:000000,op:havoc,rep:16,+cov
index b394befe3..b394befe3 100644
--- a/src/mint/afl-tests/id:000665,src:000000,op:havoc,rep:16,+cov
+++ b/src/exchange/afl-tests/id:000665,src:000000,op:havoc,rep:16,+cov
diff --git a/src/mint/afl-tests/id:000666,src:000000,op:ext_AO,pos:314,+cov b/src/exchange/afl-tests/id:000666,src:000000,op:ext_AO,pos:314,+cov
index b09d7c472..b09d7c472 100644
--- a/src/mint/afl-tests/id:000666,src:000000,op:ext_AO,pos:314,+cov
+++ b/src/exchange/afl-tests/id:000666,src:000000,op:ext_AO,pos:314,+cov
diff --git a/src/mint/afl-tests/id:000666,src:000000,op:havoc,rep:64 b/src/exchange/afl-tests/id:000666,src:000000,op:havoc,rep:64
index 1db866d51..1db866d51 100644
--- a/src/mint/afl-tests/id:000666,src:000000,op:havoc,rep:64
+++ b/src/exchange/afl-tests/id:000666,src:000000,op:havoc,rep:64
diff --git a/src/mint/afl-tests/id:000667,src:000000,op:ext_AO,pos:319,+cov b/src/exchange/afl-tests/id:000667,src:000000,op:ext_AO,pos:319,+cov
index 1e66b4578..1e66b4578 100644
--- a/src/mint/afl-tests/id:000667,src:000000,op:ext_AO,pos:319,+cov
+++ b/src/exchange/afl-tests/id:000667,src:000000,op:ext_AO,pos:319,+cov
diff --git a/src/mint/afl-tests/id:000667,src:000000,op:havoc,rep:16 b/src/exchange/afl-tests/id:000667,src:000000,op:havoc,rep:16
index bc2599f63..bc2599f63 100644
--- a/src/mint/afl-tests/id:000667,src:000000,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000667,src:000000,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000668,src:000000,op:ext_AO,pos:328,+cov b/src/exchange/afl-tests/id:000668,src:000000,op:ext_AO,pos:328,+cov
index 96f2d3424..96f2d3424 100644
--- a/src/mint/afl-tests/id:000668,src:000000,op:ext_AO,pos:328,+cov
+++ b/src/exchange/afl-tests/id:000668,src:000000,op:ext_AO,pos:328,+cov
diff --git a/src/mint/afl-tests/id:000668,src:000000,op:havoc,rep:128 b/src/exchange/afl-tests/id:000668,src:000000,op:havoc,rep:128
index 5c4473469..5c4473469 100644
--- a/src/mint/afl-tests/id:000668,src:000000,op:havoc,rep:128
+++ b/src/exchange/afl-tests/id:000668,src:000000,op:havoc,rep:128
diff --git a/src/mint/afl-tests/id:000669,src:000000,op:havoc,rep:16 b/src/exchange/afl-tests/id:000669,src:000000,op:havoc,rep:16
index 3ad7c2053..3ad7c2053 100644
--- a/src/mint/afl-tests/id:000669,src:000000,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000669,src:000000,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000669,src:000000,op:havoc,rep:64 b/src/exchange/afl-tests/id:000669,src:000000,op:havoc,rep:64
index 8b274f7f1..8b274f7f1 100644
--- a/src/mint/afl-tests/id:000669,src:000000,op:havoc,rep:64
+++ b/src/exchange/afl-tests/id:000669,src:000000,op:havoc,rep:64
diff --git a/src/mint/afl-tests/id:000670,src:000000,op:havoc,rep:32 b/src/exchange/afl-tests/id:000670,src:000000,op:havoc,rep:32
index 247ef7e3c..247ef7e3c 100644
--- a/src/mint/afl-tests/id:000670,src:000000,op:havoc,rep:32
+++ b/src/exchange/afl-tests/id:000670,src:000000,op:havoc,rep:32
diff --git a/src/mint/afl-tests/id:000671,src:000000,op:havoc,rep:16 b/src/exchange/afl-tests/id:000671,src:000000,op:havoc,rep:16
index 340f3d4c3..340f3d4c3 100644
--- a/src/mint/afl-tests/id:000671,src:000000,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000671,src:000000,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000671,src:000000,op:havoc,rep:8 b/src/exchange/afl-tests/id:000671,src:000000,op:havoc,rep:8
index c3e2f5893..c3e2f5893 100644
--- a/src/mint/afl-tests/id:000671,src:000000,op:havoc,rep:8
+++ b/src/exchange/afl-tests/id:000671,src:000000,op:havoc,rep:8
diff --git a/src/mint/afl-tests/id:000672,src:000000,op:havoc,rep:16 b/src/exchange/afl-tests/id:000672,src:000000,op:havoc,rep:16
index 6460e3c47..6460e3c47 100644
--- a/src/mint/afl-tests/id:000672,src:000000,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000672,src:000000,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000672,src:000000,op:havoc,rep:32 b/src/exchange/afl-tests/id:000672,src:000000,op:havoc,rep:32
index a1c63c480..a1c63c480 100644
--- a/src/mint/afl-tests/id:000672,src:000000,op:havoc,rep:32
+++ b/src/exchange/afl-tests/id:000672,src:000000,op:havoc,rep:32
diff --git a/src/mint/afl-tests/id:000673,src:000000,op:havoc,rep:128 b/src/exchange/afl-tests/id:000673,src:000000,op:havoc,rep:128
index d64636636..d64636636 100644
--- a/src/mint/afl-tests/id:000673,src:000000,op:havoc,rep:128
+++ b/src/exchange/afl-tests/id:000673,src:000000,op:havoc,rep:128
diff --git a/src/mint/afl-tests/id:000673,src:000000,op:havoc,rep:16 b/src/exchange/afl-tests/id:000673,src:000000,op:havoc,rep:16
index 18f1c3a67..18f1c3a67 100644
--- a/src/mint/afl-tests/id:000673,src:000000,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000673,src:000000,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000674,src:000000,op:havoc,rep:32 b/src/exchange/afl-tests/id:000674,src:000000,op:havoc,rep:32
index 846372ae2..846372ae2 100644
--- a/src/mint/afl-tests/id:000674,src:000000,op:havoc,rep:32
+++ b/src/exchange/afl-tests/id:000674,src:000000,op:havoc,rep:32
diff --git a/src/mint/afl-tests/id:000675,src:000000,op:havoc,rep:128 b/src/exchange/afl-tests/id:000675,src:000000,op:havoc,rep:128
index dbb810ed3..dbb810ed3 100644
--- a/src/mint/afl-tests/id:000675,src:000000,op:havoc,rep:128
+++ b/src/exchange/afl-tests/id:000675,src:000000,op:havoc,rep:128
diff --git a/src/mint/afl-tests/id:000675,src:000000,op:havoc,rep:8 b/src/exchange/afl-tests/id:000675,src:000000,op:havoc,rep:8
index 269d6ad73..269d6ad73 100644
--- a/src/mint/afl-tests/id:000675,src:000000,op:havoc,rep:8
+++ b/src/exchange/afl-tests/id:000675,src:000000,op:havoc,rep:8
diff --git a/src/mint/afl-tests/id:000676,src:000000,op:havoc,rep:32 b/src/exchange/afl-tests/id:000676,src:000000,op:havoc,rep:32
index e09952bca..e09952bca 100644
--- a/src/mint/afl-tests/id:000676,src:000000,op:havoc,rep:32
+++ b/src/exchange/afl-tests/id:000676,src:000000,op:havoc,rep:32
diff --git a/src/mint/afl-tests/id:000677,src:000000,op:havoc,rep:64 b/src/exchange/afl-tests/id:000677,src:000000,op:havoc,rep:64
index 8d0ddd10d..8d0ddd10d 100644
--- a/src/mint/afl-tests/id:000677,src:000000,op:havoc,rep:64
+++ b/src/exchange/afl-tests/id:000677,src:000000,op:havoc,rep:64
diff --git a/src/mint/afl-tests/id:000677,src:000000,op:havoc,rep:8 b/src/exchange/afl-tests/id:000677,src:000000,op:havoc,rep:8
index c6ca41c38..c6ca41c38 100644
--- a/src/mint/afl-tests/id:000677,src:000000,op:havoc,rep:8
+++ b/src/exchange/afl-tests/id:000677,src:000000,op:havoc,rep:8
diff --git a/src/mint/afl-tests/id:000678,src:000000,op:havoc,rep:16 b/src/exchange/afl-tests/id:000678,src:000000,op:havoc,rep:16
index f1d7065c2..f1d7065c2 100644
--- a/src/mint/afl-tests/id:000678,src:000000,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000678,src:000000,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000678,src:000000,op:havoc,rep:4 b/src/exchange/afl-tests/id:000678,src:000000,op:havoc,rep:4
index 88d7e0198..88d7e0198 100644
--- a/src/mint/afl-tests/id:000678,src:000000,op:havoc,rep:4
+++ b/src/exchange/afl-tests/id:000678,src:000000,op:havoc,rep:4
diff --git a/src/mint/afl-tests/id:000679,src:000000,op:havoc,rep:128 b/src/exchange/afl-tests/id:000679,src:000000,op:havoc,rep:128
index 6ba2b42e7..6ba2b42e7 100644
--- a/src/mint/afl-tests/id:000679,src:000000,op:havoc,rep:128
+++ b/src/exchange/afl-tests/id:000679,src:000000,op:havoc,rep:128
diff --git a/src/mint/afl-tests/id:000679,src:000000,op:havoc,rep:16,+cov b/src/exchange/afl-tests/id:000679,src:000000,op:havoc,rep:16,+cov
index b01ea79ee..b01ea79ee 100644
--- a/src/mint/afl-tests/id:000679,src:000000,op:havoc,rep:16,+cov
+++ b/src/exchange/afl-tests/id:000679,src:000000,op:havoc,rep:16,+cov
diff --git a/src/mint/afl-tests/id:000680,src:000000,op:havoc,rep:128,+cov b/src/exchange/afl-tests/id:000680,src:000000,op:havoc,rep:128,+cov
index 5954b4d4b..5954b4d4b 100644
--- a/src/mint/afl-tests/id:000680,src:000000,op:havoc,rep:128,+cov
+++ b/src/exchange/afl-tests/id:000680,src:000000,op:havoc,rep:128,+cov
diff --git a/src/mint/afl-tests/id:000680,src:000000,op:havoc,rep:32 b/src/exchange/afl-tests/id:000680,src:000000,op:havoc,rep:32
index fe5268bbb..fe5268bbb 100644
--- a/src/mint/afl-tests/id:000680,src:000000,op:havoc,rep:32
+++ b/src/exchange/afl-tests/id:000680,src:000000,op:havoc,rep:32
diff --git a/src/mint/afl-tests/id:000681,src:000000,op:havoc,rep:16 b/src/exchange/afl-tests/id:000681,src:000000,op:havoc,rep:16
index 4b5ee3229..4b5ee3229 100644
--- a/src/mint/afl-tests/id:000681,src:000000,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000681,src:000000,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000681,src:000000,op:havoc,rep:32 b/src/exchange/afl-tests/id:000681,src:000000,op:havoc,rep:32
index 83d8366f8..83d8366f8 100644
--- a/src/mint/afl-tests/id:000681,src:000000,op:havoc,rep:32
+++ b/src/exchange/afl-tests/id:000681,src:000000,op:havoc,rep:32
diff --git a/src/mint/afl-tests/id:000682,src:000000,op:havoc,rep:16 b/src/exchange/afl-tests/id:000682,src:000000,op:havoc,rep:16
index 67e7ce858..67e7ce858 100644
--- a/src/mint/afl-tests/id:000682,src:000000,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000682,src:000000,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000682,src:000000,op:havoc,rep:64,+cov b/src/exchange/afl-tests/id:000682,src:000000,op:havoc,rep:64,+cov
index 8b0343ddc..8b0343ddc 100644
--- a/src/mint/afl-tests/id:000682,src:000000,op:havoc,rep:64,+cov
+++ b/src/exchange/afl-tests/id:000682,src:000000,op:havoc,rep:64,+cov
diff --git a/src/mint/afl-tests/id:000683,src:000000,op:havoc,rep:16,+cov b/src/exchange/afl-tests/id:000683,src:000000,op:havoc,rep:16,+cov
index 1c10218e3..1c10218e3 100644
--- a/src/mint/afl-tests/id:000683,src:000000,op:havoc,rep:16,+cov
+++ b/src/exchange/afl-tests/id:000683,src:000000,op:havoc,rep:16,+cov
diff --git a/src/mint/afl-tests/id:000683,src:000000,op:havoc,rep:32,+cov b/src/exchange/afl-tests/id:000683,src:000000,op:havoc,rep:32,+cov
index 0179e7517..0179e7517 100644
--- a/src/mint/afl-tests/id:000683,src:000000,op:havoc,rep:32,+cov
+++ b/src/exchange/afl-tests/id:000683,src:000000,op:havoc,rep:32,+cov
diff --git a/src/mint/afl-tests/id:000684,src:000000,op:havoc,rep:16,+cov b/src/exchange/afl-tests/id:000684,src:000000,op:havoc,rep:16,+cov
index e87a27a22..e87a27a22 100644
--- a/src/mint/afl-tests/id:000684,src:000000,op:havoc,rep:16,+cov
+++ b/src/exchange/afl-tests/id:000684,src:000000,op:havoc,rep:16,+cov
diff --git a/src/mint/afl-tests/id:000684,src:000000,op:havoc,rep:8 b/src/exchange/afl-tests/id:000684,src:000000,op:havoc,rep:8
index 823ce3605..823ce3605 100644
--- a/src/mint/afl-tests/id:000684,src:000000,op:havoc,rep:8
+++ b/src/exchange/afl-tests/id:000684,src:000000,op:havoc,rep:8
diff --git a/src/mint/afl-tests/id:000685,src:000000,op:havoc,rep:16 b/src/exchange/afl-tests/id:000685,src:000000,op:havoc,rep:16
index 3079c2468..3079c2468 100644
--- a/src/mint/afl-tests/id:000685,src:000000,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000685,src:000000,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000685,src:000000,op:havoc,rep:16,+cov b/src/exchange/afl-tests/id:000685,src:000000,op:havoc,rep:16,+cov
index e3e8708d3..e3e8708d3 100644
--- a/src/mint/afl-tests/id:000685,src:000000,op:havoc,rep:16,+cov
+++ b/src/exchange/afl-tests/id:000685,src:000000,op:havoc,rep:16,+cov
diff --git a/src/mint/afl-tests/id:000686,src:000000,op:havoc,rep:128,+cov b/src/exchange/afl-tests/id:000686,src:000000,op:havoc,rep:128,+cov
index 832fa6763..832fa6763 100644
--- a/src/mint/afl-tests/id:000686,src:000000,op:havoc,rep:128,+cov
+++ b/src/exchange/afl-tests/id:000686,src:000000,op:havoc,rep:128,+cov
diff --git a/src/mint/afl-tests/id:000686,src:000000,op:havoc,rep:16,+cov b/src/exchange/afl-tests/id:000686,src:000000,op:havoc,rep:16,+cov
index b900efb73..b900efb73 100644
--- a/src/mint/afl-tests/id:000686,src:000000,op:havoc,rep:16,+cov
+++ b/src/exchange/afl-tests/id:000686,src:000000,op:havoc,rep:16,+cov
diff --git a/src/mint/afl-tests/id:000687,src:000000,op:havoc,rep:16 b/src/exchange/afl-tests/id:000687,src:000000,op:havoc,rep:16
index 75daa5182..75daa5182 100644
--- a/src/mint/afl-tests/id:000687,src:000000,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000687,src:000000,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000687,src:000000,op:havoc,rep:32,+cov b/src/exchange/afl-tests/id:000687,src:000000,op:havoc,rep:32,+cov
index 08c85a084..08c85a084 100644
--- a/src/mint/afl-tests/id:000687,src:000000,op:havoc,rep:32,+cov
+++ b/src/exchange/afl-tests/id:000687,src:000000,op:havoc,rep:32,+cov
diff --git a/src/mint/afl-tests/id:000688,src:000000,op:havoc,rep:128 b/src/exchange/afl-tests/id:000688,src:000000,op:havoc,rep:128
index 03a3844f9..03a3844f9 100644
--- a/src/mint/afl-tests/id:000688,src:000000,op:havoc,rep:128
+++ b/src/exchange/afl-tests/id:000688,src:000000,op:havoc,rep:128
diff --git a/src/mint/afl-tests/id:000689,src:000000,op:havoc,rep:128,+cov b/src/exchange/afl-tests/id:000689,src:000000,op:havoc,rep:128,+cov
index 937ffe401..937ffe401 100644
--- a/src/mint/afl-tests/id:000689,src:000000,op:havoc,rep:128,+cov
+++ b/src/exchange/afl-tests/id:000689,src:000000,op:havoc,rep:128,+cov
diff --git a/src/mint/afl-tests/id:000689,src:000000,op:havoc,rep:64,+cov b/src/exchange/afl-tests/id:000689,src:000000,op:havoc,rep:64,+cov
index fb09f5f80..fb09f5f80 100644
--- a/src/mint/afl-tests/id:000689,src:000000,op:havoc,rep:64,+cov
+++ b/src/exchange/afl-tests/id:000689,src:000000,op:havoc,rep:64,+cov
diff --git a/src/mint/afl-tests/id:000690,src:000000,op:havoc,rep:32 b/src/exchange/afl-tests/id:000690,src:000000,op:havoc,rep:32
index cedca0a75..cedca0a75 100644
--- a/src/mint/afl-tests/id:000690,src:000000,op:havoc,rep:32
+++ b/src/exchange/afl-tests/id:000690,src:000000,op:havoc,rep:32
diff --git a/src/mint/afl-tests/id:000690,src:000000,op:havoc,rep:64 b/src/exchange/afl-tests/id:000690,src:000000,op:havoc,rep:64
index c95782cbd..c95782cbd 100644
--- a/src/mint/afl-tests/id:000690,src:000000,op:havoc,rep:64
+++ b/src/exchange/afl-tests/id:000690,src:000000,op:havoc,rep:64
diff --git a/src/mint/afl-tests/id:000691,src:000000,op:havoc,rep:64 b/src/exchange/afl-tests/id:000691,src:000000,op:havoc,rep:64
index 3a796fd2c..3a796fd2c 100644
--- a/src/mint/afl-tests/id:000691,src:000000,op:havoc,rep:64
+++ b/src/exchange/afl-tests/id:000691,src:000000,op:havoc,rep:64
diff --git a/src/mint/afl-tests/id:000692,src:000000,op:havoc,rep:4,+cov b/src/exchange/afl-tests/id:000692,src:000000,op:havoc,rep:4,+cov
index 05d166eba..05d166eba 100644
--- a/src/mint/afl-tests/id:000692,src:000000,op:havoc,rep:4,+cov
+++ b/src/exchange/afl-tests/id:000692,src:000000,op:havoc,rep:4,+cov
diff --git a/src/mint/afl-tests/id:000693,src:000000,op:havoc,rep:16,+cov b/src/exchange/afl-tests/id:000693,src:000000,op:havoc,rep:16,+cov
index f7c18bf85..f7c18bf85 100644
--- a/src/mint/afl-tests/id:000693,src:000000,op:havoc,rep:16,+cov
+++ b/src/exchange/afl-tests/id:000693,src:000000,op:havoc,rep:16,+cov
diff --git a/src/mint/afl-tests/id:000693,src:000000,op:havoc,rep:4,+cov b/src/exchange/afl-tests/id:000693,src:000000,op:havoc,rep:4,+cov
index a2ef4f56c..a2ef4f56c 100644
--- a/src/mint/afl-tests/id:000693,src:000000,op:havoc,rep:4,+cov
+++ b/src/exchange/afl-tests/id:000693,src:000000,op:havoc,rep:4,+cov
diff --git a/src/mint/afl-tests/id:000694,src:000000,op:havoc,rep:2,+cov b/src/exchange/afl-tests/id:000694,src:000000,op:havoc,rep:2,+cov
index 7ac983447..7ac983447 100644
--- a/src/mint/afl-tests/id:000694,src:000000,op:havoc,rep:2,+cov
+++ b/src/exchange/afl-tests/id:000694,src:000000,op:havoc,rep:2,+cov
diff --git a/src/mint/afl-tests/id:000694,src:000000,op:havoc,rep:32 b/src/exchange/afl-tests/id:000694,src:000000,op:havoc,rep:32
index 0dcc737a3..0dcc737a3 100644
--- a/src/mint/afl-tests/id:000694,src:000000,op:havoc,rep:32
+++ b/src/exchange/afl-tests/id:000694,src:000000,op:havoc,rep:32
diff --git a/src/mint/afl-tests/id:000695,src:000000,op:havoc,rep:128,+cov b/src/exchange/afl-tests/id:000695,src:000000,op:havoc,rep:128,+cov
index 0234182fe..0234182fe 100644
--- a/src/mint/afl-tests/id:000695,src:000000,op:havoc,rep:128,+cov
+++ b/src/exchange/afl-tests/id:000695,src:000000,op:havoc,rep:128,+cov
diff --git a/src/mint/afl-tests/id:000695,src:000000,op:havoc,rep:64 b/src/exchange/afl-tests/id:000695,src:000000,op:havoc,rep:64
index a392fe9fc..a392fe9fc 100644
--- a/src/mint/afl-tests/id:000695,src:000000,op:havoc,rep:64
+++ b/src/exchange/afl-tests/id:000695,src:000000,op:havoc,rep:64
diff --git a/src/mint/afl-tests/id:000696,src:000000,op:havoc,rep:16 b/src/exchange/afl-tests/id:000696,src:000000,op:havoc,rep:16
index fa8974211..fa8974211 100644
--- a/src/mint/afl-tests/id:000696,src:000000,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000696,src:000000,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000696,src:000000,op:havoc,rep:2,+cov b/src/exchange/afl-tests/id:000696,src:000000,op:havoc,rep:2,+cov
index 884e2dd96..884e2dd96 100644
--- a/src/mint/afl-tests/id:000696,src:000000,op:havoc,rep:2,+cov
+++ b/src/exchange/afl-tests/id:000696,src:000000,op:havoc,rep:2,+cov
diff --git a/src/mint/afl-tests/id:000697,src:000000,op:havoc,rep:64,+cov b/src/exchange/afl-tests/id:000697,src:000000,op:havoc,rep:64,+cov
index 2ac571d2e..2ac571d2e 100644
--- a/src/mint/afl-tests/id:000697,src:000000,op:havoc,rep:64,+cov
+++ b/src/exchange/afl-tests/id:000697,src:000000,op:havoc,rep:64,+cov
diff --git a/src/mint/afl-tests/id:000697,src:000000,op:havoc,rep:8 b/src/exchange/afl-tests/id:000697,src:000000,op:havoc,rep:8
index 1f4c4b275..1f4c4b275 100644
--- a/src/mint/afl-tests/id:000697,src:000000,op:havoc,rep:8
+++ b/src/exchange/afl-tests/id:000697,src:000000,op:havoc,rep:8
diff --git a/src/mint/afl-tests/id:000698,src:000000,op:havoc,rep:128 b/src/exchange/afl-tests/id:000698,src:000000,op:havoc,rep:128
index dbaca8f22..dbaca8f22 100644
--- a/src/mint/afl-tests/id:000698,src:000000,op:havoc,rep:128
+++ b/src/exchange/afl-tests/id:000698,src:000000,op:havoc,rep:128
diff --git a/src/mint/afl-tests/id:000699,src:000000,op:havoc,rep:2,+cov b/src/exchange/afl-tests/id:000699,src:000000,op:havoc,rep:2,+cov
index 2d5688ec3..2d5688ec3 100644
--- a/src/mint/afl-tests/id:000699,src:000000,op:havoc,rep:2,+cov
+++ b/src/exchange/afl-tests/id:000699,src:000000,op:havoc,rep:2,+cov
diff --git a/src/mint/afl-tests/id:000699,src:000000,op:havoc,rep:32 b/src/exchange/afl-tests/id:000699,src:000000,op:havoc,rep:32
index b46431bbf..b46431bbf 100644
--- a/src/mint/afl-tests/id:000699,src:000000,op:havoc,rep:32
+++ b/src/exchange/afl-tests/id:000699,src:000000,op:havoc,rep:32
diff --git a/src/mint/afl-tests/id:000700,src:000000,op:havoc,rep:128,+cov b/src/exchange/afl-tests/id:000700,src:000000,op:havoc,rep:128,+cov
index c62e58c13..c62e58c13 100644
--- a/src/mint/afl-tests/id:000700,src:000000,op:havoc,rep:128,+cov
+++ b/src/exchange/afl-tests/id:000700,src:000000,op:havoc,rep:128,+cov
diff --git a/src/mint/afl-tests/id:000700,src:000000,op:havoc,rep:32,+cov b/src/exchange/afl-tests/id:000700,src:000000,op:havoc,rep:32,+cov
index cb8978d9b..cb8978d9b 100644
--- a/src/mint/afl-tests/id:000700,src:000000,op:havoc,rep:32,+cov
+++ b/src/exchange/afl-tests/id:000700,src:000000,op:havoc,rep:32,+cov
diff --git a/src/mint/afl-tests/id:000701,src:000000,op:havoc,rep:16,+cov b/src/exchange/afl-tests/id:000701,src:000000,op:havoc,rep:16,+cov
index aa3e7621e..aa3e7621e 100644
--- a/src/mint/afl-tests/id:000701,src:000000,op:havoc,rep:16,+cov
+++ b/src/exchange/afl-tests/id:000701,src:000000,op:havoc,rep:16,+cov
diff --git a/src/mint/afl-tests/id:000701,src:000000,op:havoc,rep:2 b/src/exchange/afl-tests/id:000701,src:000000,op:havoc,rep:2
index 444782877..444782877 100644
--- a/src/mint/afl-tests/id:000701,src:000000,op:havoc,rep:2
+++ b/src/exchange/afl-tests/id:000701,src:000000,op:havoc,rep:2
diff --git a/src/mint/afl-tests/id:000702,src:000000,op:havoc,rep:128 b/src/exchange/afl-tests/id:000702,src:000000,op:havoc,rep:128
index 649fd44f8..649fd44f8 100644
--- a/src/mint/afl-tests/id:000702,src:000000,op:havoc,rep:128
+++ b/src/exchange/afl-tests/id:000702,src:000000,op:havoc,rep:128
diff --git a/src/mint/afl-tests/id:000702,src:000000,op:havoc,rep:8 b/src/exchange/afl-tests/id:000702,src:000000,op:havoc,rep:8
index b85d4b872..b85d4b872 100644
--- a/src/mint/afl-tests/id:000702,src:000000,op:havoc,rep:8
+++ b/src/exchange/afl-tests/id:000702,src:000000,op:havoc,rep:8
diff --git a/src/mint/afl-tests/id:000703,src:000000,op:havoc,rep:32,+cov b/src/exchange/afl-tests/id:000703,src:000000,op:havoc,rep:32,+cov
index a2e94bbef..a2e94bbef 100644
--- a/src/mint/afl-tests/id:000703,src:000000,op:havoc,rep:32,+cov
+++ b/src/exchange/afl-tests/id:000703,src:000000,op:havoc,rep:32,+cov
diff --git a/src/mint/afl-tests/id:000703,src:000001,op:flip1,pos:34,+cov b/src/exchange/afl-tests/id:000703,src:000001,op:flip1,pos:34,+cov
index 8b8afd5ce..8b8afd5ce 100644
--- a/src/mint/afl-tests/id:000703,src:000001,op:flip1,pos:34,+cov
+++ b/src/exchange/afl-tests/id:000703,src:000001,op:flip1,pos:34,+cov
diff --git a/src/mint/afl-tests/id:000704,src:000000,op:havoc,rep:64,+cov b/src/exchange/afl-tests/id:000704,src:000000,op:havoc,rep:64,+cov
index d6803b35b..d6803b35b 100644
--- a/src/mint/afl-tests/id:000704,src:000000,op:havoc,rep:64,+cov
+++ b/src/exchange/afl-tests/id:000704,src:000000,op:havoc,rep:64,+cov
diff --git a/src/mint/afl-tests/id:000704,src:000001,op:flip1,pos:50,+cov b/src/exchange/afl-tests/id:000704,src:000001,op:flip1,pos:50,+cov
index 7a6dce8aa..7a6dce8aa 100644
--- a/src/mint/afl-tests/id:000704,src:000001,op:flip1,pos:50,+cov
+++ b/src/exchange/afl-tests/id:000704,src:000001,op:flip1,pos:50,+cov
diff --git a/src/mint/afl-tests/id:000705,src:000000,op:havoc,rep:2,+cov b/src/exchange/afl-tests/id:000705,src:000000,op:havoc,rep:2,+cov
index 92322dd4f..92322dd4f 100644
--- a/src/mint/afl-tests/id:000705,src:000000,op:havoc,rep:2,+cov
+++ b/src/exchange/afl-tests/id:000705,src:000000,op:havoc,rep:2,+cov
diff --git a/src/mint/afl-tests/id:000705,src:000001,op:flip1,pos:61,+cov b/src/exchange/afl-tests/id:000705,src:000001,op:flip1,pos:61,+cov
index 91834a952..91834a952 100644
--- a/src/mint/afl-tests/id:000705,src:000001,op:flip1,pos:61,+cov
+++ b/src/exchange/afl-tests/id:000705,src:000001,op:flip1,pos:61,+cov
diff --git a/src/mint/afl-tests/id:000706,src:000000,op:havoc,rep:32 b/src/exchange/afl-tests/id:000706,src:000000,op:havoc,rep:32
index b204b3695..b204b3695 100644
--- a/src/mint/afl-tests/id:000706,src:000000,op:havoc,rep:32
+++ b/src/exchange/afl-tests/id:000706,src:000000,op:havoc,rep:32
diff --git a/src/mint/afl-tests/id:000706,src:000001,op:flip1,pos:91 b/src/exchange/afl-tests/id:000706,src:000001,op:flip1,pos:91
index f0774c0d7..f0774c0d7 100644
--- a/src/mint/afl-tests/id:000706,src:000001,op:flip1,pos:91
+++ b/src/exchange/afl-tests/id:000706,src:000001,op:flip1,pos:91
diff --git a/src/mint/afl-tests/id:000707,src:000000,op:havoc,rep:128,+cov b/src/exchange/afl-tests/id:000707,src:000000,op:havoc,rep:128,+cov
index a3b803dc8..a3b803dc8 100644
--- a/src/mint/afl-tests/id:000707,src:000000,op:havoc,rep:128,+cov
+++ b/src/exchange/afl-tests/id:000707,src:000000,op:havoc,rep:128,+cov
diff --git a/src/mint/afl-tests/id:000707,src:000001,op:flip1,pos:103,+cov b/src/exchange/afl-tests/id:000707,src:000001,op:flip1,pos:103,+cov
index 598ffc94a..598ffc94a 100644
--- a/src/mint/afl-tests/id:000707,src:000001,op:flip1,pos:103,+cov
+++ b/src/exchange/afl-tests/id:000707,src:000001,op:flip1,pos:103,+cov
diff --git a/src/mint/afl-tests/id:000708,src:000000,op:havoc,rep:2 b/src/exchange/afl-tests/id:000708,src:000000,op:havoc,rep:2
index 1cf4bd71c..1cf4bd71c 100644
--- a/src/mint/afl-tests/id:000708,src:000000,op:havoc,rep:2
+++ b/src/exchange/afl-tests/id:000708,src:000000,op:havoc,rep:2
diff --git a/src/mint/afl-tests/id:000708,src:000001,op:flip1,pos:120,+cov b/src/exchange/afl-tests/id:000708,src:000001,op:flip1,pos:120,+cov
index cd0877030..cd0877030 100644
--- a/src/mint/afl-tests/id:000708,src:000001,op:flip1,pos:120,+cov
+++ b/src/exchange/afl-tests/id:000708,src:000001,op:flip1,pos:120,+cov
diff --git a/src/mint/afl-tests/id:000709,src:000000,op:havoc,rep:64 b/src/exchange/afl-tests/id:000709,src:000000,op:havoc,rep:64
index 87c7a7065..87c7a7065 100644
--- a/src/mint/afl-tests/id:000709,src:000000,op:havoc,rep:64
+++ b/src/exchange/afl-tests/id:000709,src:000000,op:havoc,rep:64
diff --git a/src/mint/afl-tests/id:000709,src:000001,op:flip1,pos:129,+cov b/src/exchange/afl-tests/id:000709,src:000001,op:flip1,pos:129,+cov
index 427ee45a1..427ee45a1 100644
--- a/src/mint/afl-tests/id:000709,src:000001,op:flip1,pos:129,+cov
+++ b/src/exchange/afl-tests/id:000709,src:000001,op:flip1,pos:129,+cov
diff --git a/src/mint/afl-tests/id:000710,src:000000,op:havoc,rep:8,+cov b/src/exchange/afl-tests/id:000710,src:000000,op:havoc,rep:8,+cov
index 6191f7040..6191f7040 100644
--- a/src/mint/afl-tests/id:000710,src:000000,op:havoc,rep:8,+cov
+++ b/src/exchange/afl-tests/id:000710,src:000000,op:havoc,rep:8,+cov
diff --git a/src/mint/afl-tests/id:000710,src:000001,op:flip1,pos:129,+cov b/src/exchange/afl-tests/id:000710,src:000001,op:flip1,pos:129,+cov
index 546c225b3..546c225b3 100644
--- a/src/mint/afl-tests/id:000710,src:000001,op:flip1,pos:129,+cov
+++ b/src/exchange/afl-tests/id:000710,src:000001,op:flip1,pos:129,+cov
diff --git a/src/mint/afl-tests/id:000711,src:000000,op:havoc,rep:2,+cov b/src/exchange/afl-tests/id:000711,src:000000,op:havoc,rep:2,+cov
index ab1663bab..ab1663bab 100644
--- a/src/mint/afl-tests/id:000711,src:000000,op:havoc,rep:2,+cov
+++ b/src/exchange/afl-tests/id:000711,src:000000,op:havoc,rep:2,+cov
diff --git a/src/mint/afl-tests/id:000711,src:000001,op:flip1,pos:131,+cov b/src/exchange/afl-tests/id:000711,src:000001,op:flip1,pos:131,+cov
index b097e2a2b..b097e2a2b 100644
--- a/src/mint/afl-tests/id:000711,src:000001,op:flip1,pos:131,+cov
+++ b/src/exchange/afl-tests/id:000711,src:000001,op:flip1,pos:131,+cov
diff --git a/src/mint/afl-tests/id:000712,src:000000,op:havoc,rep:2,+cov b/src/exchange/afl-tests/id:000712,src:000000,op:havoc,rep:2,+cov
index 0f49aaf93..0f49aaf93 100644
--- a/src/mint/afl-tests/id:000712,src:000000,op:havoc,rep:2,+cov
+++ b/src/exchange/afl-tests/id:000712,src:000000,op:havoc,rep:2,+cov
diff --git a/src/mint/afl-tests/id:000712,src:000001,op:flip1,pos:139,+cov b/src/exchange/afl-tests/id:000712,src:000001,op:flip1,pos:139,+cov
index f3e292007..f3e292007 100644
--- a/src/mint/afl-tests/id:000712,src:000001,op:flip1,pos:139,+cov
+++ b/src/exchange/afl-tests/id:000712,src:000001,op:flip1,pos:139,+cov
diff --git a/src/mint/afl-tests/id:000713,src:000000,op:havoc,rep:64,+cov b/src/exchange/afl-tests/id:000713,src:000000,op:havoc,rep:64,+cov
index 4206ca60c..4206ca60c 100644
--- a/src/mint/afl-tests/id:000713,src:000000,op:havoc,rep:64,+cov
+++ b/src/exchange/afl-tests/id:000713,src:000000,op:havoc,rep:64,+cov
diff --git a/src/mint/afl-tests/id:000713,src:000001,op:flip1,pos:197,+cov b/src/exchange/afl-tests/id:000713,src:000001,op:flip1,pos:197,+cov
index 74773e9c3..74773e9c3 100644
--- a/src/mint/afl-tests/id:000713,src:000001,op:flip1,pos:197,+cov
+++ b/src/exchange/afl-tests/id:000713,src:000001,op:flip1,pos:197,+cov
diff --git a/src/mint/afl-tests/id:000714,src:000000,op:havoc,rep:8,+cov b/src/exchange/afl-tests/id:000714,src:000000,op:havoc,rep:8,+cov
index aae44460a..aae44460a 100644
--- a/src/mint/afl-tests/id:000714,src:000000,op:havoc,rep:8,+cov
+++ b/src/exchange/afl-tests/id:000714,src:000000,op:havoc,rep:8,+cov
diff --git a/src/mint/afl-tests/id:000714,src:000001,op:flip1,pos:243,+cov b/src/exchange/afl-tests/id:000714,src:000001,op:flip1,pos:243,+cov
index 38b92321f..38b92321f 100644
--- a/src/mint/afl-tests/id:000714,src:000001,op:flip1,pos:243,+cov
+++ b/src/exchange/afl-tests/id:000714,src:000001,op:flip1,pos:243,+cov
diff --git a/src/mint/afl-tests/id:000715,src:000000,op:havoc,rep:8,+cov b/src/exchange/afl-tests/id:000715,src:000000,op:havoc,rep:8,+cov
index e6b08d6f9..e6b08d6f9 100644
--- a/src/mint/afl-tests/id:000715,src:000000,op:havoc,rep:8,+cov
+++ b/src/exchange/afl-tests/id:000715,src:000000,op:havoc,rep:8,+cov
diff --git a/src/mint/afl-tests/id:000715,src:000001,op:flip1,pos:365,+cov b/src/exchange/afl-tests/id:000715,src:000001,op:flip1,pos:365,+cov
index 8a5422a0d..8a5422a0d 100644
--- a/src/mint/afl-tests/id:000715,src:000001,op:flip1,pos:365,+cov
+++ b/src/exchange/afl-tests/id:000715,src:000001,op:flip1,pos:365,+cov
diff --git a/src/mint/afl-tests/id:000716,src:000001,op:flip1,pos:2 b/src/exchange/afl-tests/id:000716,src:000001,op:flip1,pos:2
index bfc0224a9..bfc0224a9 100644
--- a/src/mint/afl-tests/id:000716,src:000001,op:flip1,pos:2
+++ b/src/exchange/afl-tests/id:000716,src:000001,op:flip1,pos:2
diff --git a/src/mint/afl-tests/id:000716,src:000001,op:flip1,pos:456,+cov b/src/exchange/afl-tests/id:000716,src:000001,op:flip1,pos:456,+cov
index 90f879bab..90f879bab 100644
--- a/src/mint/afl-tests/id:000716,src:000001,op:flip1,pos:456,+cov
+++ b/src/exchange/afl-tests/id:000716,src:000001,op:flip1,pos:456,+cov
diff --git a/src/mint/afl-tests/id:000717,src:000001,op:flip1,pos:50,+cov b/src/exchange/afl-tests/id:000717,src:000001,op:flip1,pos:50,+cov
index 01aca8b31..01aca8b31 100644
--- a/src/mint/afl-tests/id:000717,src:000001,op:flip1,pos:50,+cov
+++ b/src/exchange/afl-tests/id:000717,src:000001,op:flip1,pos:50,+cov
diff --git a/src/mint/afl-tests/id:000717,src:000001,op:flip1,pos:596 b/src/exchange/afl-tests/id:000717,src:000001,op:flip1,pos:596
index e3265d2c5..e3265d2c5 100644
--- a/src/mint/afl-tests/id:000717,src:000001,op:flip1,pos:596
+++ b/src/exchange/afl-tests/id:000717,src:000001,op:flip1,pos:596
diff --git a/src/mint/afl-tests/id:000718,src:000001,op:flip1,pos:55,+cov b/src/exchange/afl-tests/id:000718,src:000001,op:flip1,pos:55,+cov
index 63295d571..63295d571 100644
--- a/src/mint/afl-tests/id:000718,src:000001,op:flip1,pos:55,+cov
+++ b/src/exchange/afl-tests/id:000718,src:000001,op:flip1,pos:55,+cov
diff --git a/src/mint/afl-tests/id:000718,src:000001,op:flip1,pos:614,+cov b/src/exchange/afl-tests/id:000718,src:000001,op:flip1,pos:614,+cov
index 37d818c94..37d818c94 100644
--- a/src/mint/afl-tests/id:000718,src:000001,op:flip1,pos:614,+cov
+++ b/src/exchange/afl-tests/id:000718,src:000001,op:flip1,pos:614,+cov
diff --git a/src/mint/afl-tests/id:000719,src:000001,op:flip1,pos:629,+cov b/src/exchange/afl-tests/id:000719,src:000001,op:flip1,pos:629,+cov
index 861e99c81..861e99c81 100644
--- a/src/mint/afl-tests/id:000719,src:000001,op:flip1,pos:629,+cov
+++ b/src/exchange/afl-tests/id:000719,src:000001,op:flip1,pos:629,+cov
diff --git a/src/mint/afl-tests/id:000719,src:000001,op:flip1,pos:95 b/src/exchange/afl-tests/id:000719,src:000001,op:flip1,pos:95
index 6f50c2ec0..6f50c2ec0 100644
--- a/src/mint/afl-tests/id:000719,src:000001,op:flip1,pos:95
+++ b/src/exchange/afl-tests/id:000719,src:000001,op:flip1,pos:95
diff --git a/src/mint/afl-tests/id:000720,src:000001,op:flip1,pos:102,+cov b/src/exchange/afl-tests/id:000720,src:000001,op:flip1,pos:102,+cov
index 9750ed4f5..9750ed4f5 100644
--- a/src/mint/afl-tests/id:000720,src:000001,op:flip1,pos:102,+cov
+++ b/src/exchange/afl-tests/id:000720,src:000001,op:flip1,pos:102,+cov
diff --git a/src/mint/afl-tests/id:000720,src:000001,op:flip1,pos:635,+cov b/src/exchange/afl-tests/id:000720,src:000001,op:flip1,pos:635,+cov
index faf9bbb0e..faf9bbb0e 100644
--- a/src/mint/afl-tests/id:000720,src:000001,op:flip1,pos:635,+cov
+++ b/src/exchange/afl-tests/id:000720,src:000001,op:flip1,pos:635,+cov
diff --git a/src/mint/afl-tests/id:000721,src:000001,op:flip1,pos:107,+cov b/src/exchange/afl-tests/id:000721,src:000001,op:flip1,pos:107,+cov
index 410ddd0b8..410ddd0b8 100644
--- a/src/mint/afl-tests/id:000721,src:000001,op:flip1,pos:107,+cov
+++ b/src/exchange/afl-tests/id:000721,src:000001,op:flip1,pos:107,+cov
diff --git a/src/mint/afl-tests/id:000721,src:000001,op:flip1,pos:683,+cov b/src/exchange/afl-tests/id:000721,src:000001,op:flip1,pos:683,+cov
index 73f524837..73f524837 100644
--- a/src/mint/afl-tests/id:000721,src:000001,op:flip1,pos:683,+cov
+++ b/src/exchange/afl-tests/id:000721,src:000001,op:flip1,pos:683,+cov
diff --git a/src/mint/afl-tests/id:000722,src:000001,op:flip1,pos:118,+cov b/src/exchange/afl-tests/id:000722,src:000001,op:flip1,pos:118,+cov
index b0c0d068d..b0c0d068d 100644
--- a/src/mint/afl-tests/id:000722,src:000001,op:flip1,pos:118,+cov
+++ b/src/exchange/afl-tests/id:000722,src:000001,op:flip1,pos:118,+cov
diff --git a/src/mint/afl-tests/id:000722,src:000001,op:flip1,pos:730,+cov b/src/exchange/afl-tests/id:000722,src:000001,op:flip1,pos:730,+cov
index 5d230cddb..5d230cddb 100644
--- a/src/mint/afl-tests/id:000722,src:000001,op:flip1,pos:730,+cov
+++ b/src/exchange/afl-tests/id:000722,src:000001,op:flip1,pos:730,+cov
diff --git a/src/mint/afl-tests/id:000723,src:000001,op:flip1,pos:124,+cov b/src/exchange/afl-tests/id:000723,src:000001,op:flip1,pos:124,+cov
index 3447e4b9a..3447e4b9a 100644
--- a/src/mint/afl-tests/id:000723,src:000001,op:flip1,pos:124,+cov
+++ b/src/exchange/afl-tests/id:000723,src:000001,op:flip1,pos:124,+cov
diff --git a/src/mint/afl-tests/id:000723,src:000001,op:flip1,pos:786,+cov b/src/exchange/afl-tests/id:000723,src:000001,op:flip1,pos:786,+cov
index e99546a66..e99546a66 100644
--- a/src/mint/afl-tests/id:000723,src:000001,op:flip1,pos:786,+cov
+++ b/src/exchange/afl-tests/id:000723,src:000001,op:flip1,pos:786,+cov
diff --git a/src/mint/afl-tests/id:000724,src:000001,op:flip1,pos:133,+cov b/src/exchange/afl-tests/id:000724,src:000001,op:flip1,pos:133,+cov
index b045d2d57..b045d2d57 100644
--- a/src/mint/afl-tests/id:000724,src:000001,op:flip1,pos:133,+cov
+++ b/src/exchange/afl-tests/id:000724,src:000001,op:flip1,pos:133,+cov
diff --git a/src/mint/afl-tests/id:000724,src:000001,op:flip1,pos:796 b/src/exchange/afl-tests/id:000724,src:000001,op:flip1,pos:796
index b989d1659..b989d1659 100644
--- a/src/mint/afl-tests/id:000724,src:000001,op:flip1,pos:796
+++ b/src/exchange/afl-tests/id:000724,src:000001,op:flip1,pos:796
diff --git a/src/mint/afl-tests/id:000725,src:000001,op:flip1,pos:133,+cov b/src/exchange/afl-tests/id:000725,src:000001,op:flip1,pos:133,+cov
index 36ad08e1e..36ad08e1e 100644
--- a/src/mint/afl-tests/id:000725,src:000001,op:flip1,pos:133,+cov
+++ b/src/exchange/afl-tests/id:000725,src:000001,op:flip1,pos:133,+cov
diff --git a/src/mint/afl-tests/id:000725,src:000001,op:flip1,pos:915,+cov b/src/exchange/afl-tests/id:000725,src:000001,op:flip1,pos:915,+cov
index f8d912731..f8d912731 100644
--- a/src/mint/afl-tests/id:000725,src:000001,op:flip1,pos:915,+cov
+++ b/src/exchange/afl-tests/id:000725,src:000001,op:flip1,pos:915,+cov
diff --git a/src/mint/afl-tests/id:000726,src:000001,op:flip1,pos:1112,+cov b/src/exchange/afl-tests/id:000726,src:000001,op:flip1,pos:1112,+cov
index c5a1fa771..c5a1fa771 100644
--- a/src/mint/afl-tests/id:000726,src:000001,op:flip1,pos:1112,+cov
+++ b/src/exchange/afl-tests/id:000726,src:000001,op:flip1,pos:1112,+cov
diff --git a/src/mint/afl-tests/id:000726,src:000001,op:flip1,pos:135,+cov b/src/exchange/afl-tests/id:000726,src:000001,op:flip1,pos:135,+cov
index b8423af6b..b8423af6b 100644
--- a/src/mint/afl-tests/id:000726,src:000001,op:flip1,pos:135,+cov
+++ b/src/exchange/afl-tests/id:000726,src:000001,op:flip1,pos:135,+cov
diff --git a/src/mint/afl-tests/id:000727,src:000001,op:flip1,pos:1112,+cov b/src/exchange/afl-tests/id:000727,src:000001,op:flip1,pos:1112,+cov
index 722f45bbf..722f45bbf 100644
--- a/src/mint/afl-tests/id:000727,src:000001,op:flip1,pos:1112,+cov
+++ b/src/exchange/afl-tests/id:000727,src:000001,op:flip1,pos:1112,+cov
diff --git a/src/mint/afl-tests/id:000727,src:000001,op:flip1,pos:457,+cov b/src/exchange/afl-tests/id:000727,src:000001,op:flip1,pos:457,+cov
index b66ec8250..b66ec8250 100644
--- a/src/mint/afl-tests/id:000727,src:000001,op:flip1,pos:457,+cov
+++ b/src/exchange/afl-tests/id:000727,src:000001,op:flip1,pos:457,+cov
diff --git a/src/mint/afl-tests/id:000728,src:000001,op:flip1,pos:1114,+cov b/src/exchange/afl-tests/id:000728,src:000001,op:flip1,pos:1114,+cov
index d096b97fe..d096b97fe 100644
--- a/src/mint/afl-tests/id:000728,src:000001,op:flip1,pos:1114,+cov
+++ b/src/exchange/afl-tests/id:000728,src:000001,op:flip1,pos:1114,+cov
diff --git a/src/mint/afl-tests/id:000728,src:000001,op:flip1,pos:469,+cov b/src/exchange/afl-tests/id:000728,src:000001,op:flip1,pos:469,+cov
index 394a850a4..394a850a4 100644
--- a/src/mint/afl-tests/id:000728,src:000001,op:flip1,pos:469,+cov
+++ b/src/exchange/afl-tests/id:000728,src:000001,op:flip1,pos:469,+cov
diff --git a/src/mint/afl-tests/id:000729,src:000001,op:flip1,pos:1215,+cov b/src/exchange/afl-tests/id:000729,src:000001,op:flip1,pos:1215,+cov
index 830a76c11..830a76c11 100644
--- a/src/mint/afl-tests/id:000729,src:000001,op:flip1,pos:1215,+cov
+++ b/src/exchange/afl-tests/id:000729,src:000001,op:flip1,pos:1215,+cov
diff --git a/src/mint/afl-tests/id:000729,src:000001,op:flip1,pos:508,+cov b/src/exchange/afl-tests/id:000729,src:000001,op:flip1,pos:508,+cov
index e82a8288d..e82a8288d 100644
--- a/src/mint/afl-tests/id:000729,src:000001,op:flip1,pos:508,+cov
+++ b/src/exchange/afl-tests/id:000729,src:000001,op:flip1,pos:508,+cov
diff --git a/src/mint/afl-tests/id:000730,src:000001,op:flip1,pos:1353,+cov b/src/exchange/afl-tests/id:000730,src:000001,op:flip1,pos:1353,+cov
index 6c9c4bef8..6c9c4bef8 100644
--- a/src/mint/afl-tests/id:000730,src:000001,op:flip1,pos:1353,+cov
+++ b/src/exchange/afl-tests/id:000730,src:000001,op:flip1,pos:1353,+cov
diff --git a/src/mint/afl-tests/id:000730,src:000001,op:flip1,pos:600 b/src/exchange/afl-tests/id:000730,src:000001,op:flip1,pos:600
index 561d9b67a..561d9b67a 100644
--- a/src/mint/afl-tests/id:000730,src:000001,op:flip1,pos:600
+++ b/src/exchange/afl-tests/id:000730,src:000001,op:flip1,pos:600
diff --git a/src/mint/afl-tests/id:000731,src:000001,op:flip1,pos:1453,+cov b/src/exchange/afl-tests/id:000731,src:000001,op:flip1,pos:1453,+cov
index f39d1a432..f39d1a432 100644
--- a/src/mint/afl-tests/id:000731,src:000001,op:flip1,pos:1453,+cov
+++ b/src/exchange/afl-tests/id:000731,src:000001,op:flip1,pos:1453,+cov
diff --git a/src/mint/afl-tests/id:000731,src:000001,op:flip1,pos:618,+cov b/src/exchange/afl-tests/id:000731,src:000001,op:flip1,pos:618,+cov
index 07575f9e3..07575f9e3 100644
--- a/src/mint/afl-tests/id:000731,src:000001,op:flip1,pos:618,+cov
+++ b/src/exchange/afl-tests/id:000731,src:000001,op:flip1,pos:618,+cov
diff --git a/src/mint/afl-tests/id:000732,src:000001,op:flip1,pos:1574,+cov b/src/exchange/afl-tests/id:000732,src:000001,op:flip1,pos:1574,+cov
index a80fb94b8..a80fb94b8 100644
--- a/src/mint/afl-tests/id:000732,src:000001,op:flip1,pos:1574,+cov
+++ b/src/exchange/afl-tests/id:000732,src:000001,op:flip1,pos:1574,+cov
diff --git a/src/mint/afl-tests/id:000732,src:000001,op:flip1,pos:633,+cov b/src/exchange/afl-tests/id:000732,src:000001,op:flip1,pos:633,+cov
index 84c29c53c..84c29c53c 100644
--- a/src/mint/afl-tests/id:000732,src:000001,op:flip1,pos:633,+cov
+++ b/src/exchange/afl-tests/id:000732,src:000001,op:flip1,pos:633,+cov
diff --git a/src/mint/afl-tests/id:000733,src:000001,op:flip1,pos:1630 b/src/exchange/afl-tests/id:000733,src:000001,op:flip1,pos:1630
index e84d89daf..e84d89daf 100644
--- a/src/mint/afl-tests/id:000733,src:000001,op:flip1,pos:1630
+++ b/src/exchange/afl-tests/id:000733,src:000001,op:flip1,pos:1630
diff --git a/src/mint/afl-tests/id:000733,src:000001,op:flip1,pos:687,+cov b/src/exchange/afl-tests/id:000733,src:000001,op:flip1,pos:687,+cov
index b12b1ecdc..b12b1ecdc 100644
--- a/src/mint/afl-tests/id:000733,src:000001,op:flip1,pos:687,+cov
+++ b/src/exchange/afl-tests/id:000733,src:000001,op:flip1,pos:687,+cov
diff --git a/src/mint/afl-tests/id:000734,src:000001,op:flip1,pos:722,+cov b/src/exchange/afl-tests/id:000734,src:000001,op:flip1,pos:722,+cov
index 63cf05fe4..63cf05fe4 100644
--- a/src/mint/afl-tests/id:000734,src:000001,op:flip1,pos:722,+cov
+++ b/src/exchange/afl-tests/id:000734,src:000001,op:flip1,pos:722,+cov
diff --git a/src/mint/afl-tests/id:000734,src:000001,op:flip2,pos:453,+cov b/src/exchange/afl-tests/id:000734,src:000001,op:flip2,pos:453,+cov
index 0e23b0018..0e23b0018 100644
--- a/src/mint/afl-tests/id:000734,src:000001,op:flip2,pos:453,+cov
+++ b/src/exchange/afl-tests/id:000734,src:000001,op:flip2,pos:453,+cov
diff --git a/src/mint/afl-tests/id:000735,src:000001,op:flip1,pos:734,+cov b/src/exchange/afl-tests/id:000735,src:000001,op:flip1,pos:734,+cov
index 6cf6656e0..6cf6656e0 100644
--- a/src/mint/afl-tests/id:000735,src:000001,op:flip1,pos:734,+cov
+++ b/src/exchange/afl-tests/id:000735,src:000001,op:flip1,pos:734,+cov
diff --git a/src/mint/afl-tests/id:000735,src:000001,op:flip2,pos:484,+cov b/src/exchange/afl-tests/id:000735,src:000001,op:flip2,pos:484,+cov
index 807f2a703..807f2a703 100644
--- a/src/mint/afl-tests/id:000735,src:000001,op:flip2,pos:484,+cov
+++ b/src/exchange/afl-tests/id:000735,src:000001,op:flip2,pos:484,+cov
diff --git a/src/mint/afl-tests/id:000736,src:000001,op:flip1,pos:800 b/src/exchange/afl-tests/id:000736,src:000001,op:flip1,pos:800
index 1b631b8c3..1b631b8c3 100644
--- a/src/mint/afl-tests/id:000736,src:000001,op:flip1,pos:800
+++ b/src/exchange/afl-tests/id:000736,src:000001,op:flip1,pos:800
diff --git a/src/mint/afl-tests/id:000736,src:000001,op:flip2,pos:696,+cov b/src/exchange/afl-tests/id:000736,src:000001,op:flip2,pos:696,+cov
index 2014e2107..2014e2107 100644
--- a/src/mint/afl-tests/id:000736,src:000001,op:flip2,pos:696,+cov
+++ b/src/exchange/afl-tests/id:000736,src:000001,op:flip2,pos:696,+cov
diff --git a/src/mint/afl-tests/id:000737,src:000001,op:flip1,pos:888,+cov b/src/exchange/afl-tests/id:000737,src:000001,op:flip1,pos:888,+cov
index 04e588c34..04e588c34 100644
--- a/src/mint/afl-tests/id:000737,src:000001,op:flip1,pos:888,+cov
+++ b/src/exchange/afl-tests/id:000737,src:000001,op:flip1,pos:888,+cov
diff --git a/src/mint/afl-tests/id:000737,src:000001,op:flip2,pos:843,+cov b/src/exchange/afl-tests/id:000737,src:000001,op:flip2,pos:843,+cov
index ba306ceac..ba306ceac 100644
--- a/src/mint/afl-tests/id:000737,src:000001,op:flip2,pos:843,+cov
+++ b/src/exchange/afl-tests/id:000737,src:000001,op:flip2,pos:843,+cov
diff --git a/src/mint/afl-tests/id:000738,src:000001,op:flip1,pos:893,+cov b/src/exchange/afl-tests/id:000738,src:000001,op:flip1,pos:893,+cov
index f56cf52cc..f56cf52cc 100644
--- a/src/mint/afl-tests/id:000738,src:000001,op:flip1,pos:893,+cov
+++ b/src/exchange/afl-tests/id:000738,src:000001,op:flip1,pos:893,+cov
diff --git a/src/mint/afl-tests/id:000738,src:000001,op:flip2,pos:845,+cov b/src/exchange/afl-tests/id:000738,src:000001,op:flip2,pos:845,+cov
index 007d58e89..007d58e89 100644
--- a/src/mint/afl-tests/id:000738,src:000001,op:flip2,pos:845,+cov
+++ b/src/exchange/afl-tests/id:000738,src:000001,op:flip2,pos:845,+cov
diff --git a/src/mint/afl-tests/id:000739,src:000001,op:flip1,pos:1116,+cov b/src/exchange/afl-tests/id:000739,src:000001,op:flip1,pos:1116,+cov
index a91117870..a91117870 100644
--- a/src/mint/afl-tests/id:000739,src:000001,op:flip1,pos:1116,+cov
+++ b/src/exchange/afl-tests/id:000739,src:000001,op:flip1,pos:1116,+cov
diff --git a/src/mint/afl-tests/id:000739,src:000001,op:flip2,pos:917,+cov b/src/exchange/afl-tests/id:000739,src:000001,op:flip2,pos:917,+cov
index e54b63201..e54b63201 100644
--- a/src/mint/afl-tests/id:000739,src:000001,op:flip2,pos:917,+cov
+++ b/src/exchange/afl-tests/id:000739,src:000001,op:flip2,pos:917,+cov
diff --git a/src/mint/afl-tests/id:000740,src:000001,op:flip1,pos:1116,+cov b/src/exchange/afl-tests/id:000740,src:000001,op:flip1,pos:1116,+cov
index ab1a92edc..ab1a92edc 100644
--- a/src/mint/afl-tests/id:000740,src:000001,op:flip1,pos:1116,+cov
+++ b/src/exchange/afl-tests/id:000740,src:000001,op:flip1,pos:1116,+cov
diff --git a/src/mint/afl-tests/id:000740,src:000001,op:flip2,pos:995,+cov b/src/exchange/afl-tests/id:000740,src:000001,op:flip2,pos:995,+cov
index 31437d715..31437d715 100644
--- a/src/mint/afl-tests/id:000740,src:000001,op:flip2,pos:995,+cov
+++ b/src/exchange/afl-tests/id:000740,src:000001,op:flip2,pos:995,+cov
diff --git a/src/mint/afl-tests/id:000741,src:000001,op:flip1,pos:1118,+cov b/src/exchange/afl-tests/id:000741,src:000001,op:flip1,pos:1118,+cov
index 0af793310..0af793310 100644
--- a/src/mint/afl-tests/id:000741,src:000001,op:flip1,pos:1118,+cov
+++ b/src/exchange/afl-tests/id:000741,src:000001,op:flip1,pos:1118,+cov
diff --git a/src/mint/afl-tests/id:000741,src:000001,op:flip2,pos:1031,+cov b/src/exchange/afl-tests/id:000741,src:000001,op:flip2,pos:1031,+cov
index 51fc01b75..51fc01b75 100644
--- a/src/mint/afl-tests/id:000741,src:000001,op:flip2,pos:1031,+cov
+++ b/src/exchange/afl-tests/id:000741,src:000001,op:flip2,pos:1031,+cov
diff --git a/src/mint/afl-tests/id:000742,src:000001,op:flip1,pos:1170,+cov b/src/exchange/afl-tests/id:000742,src:000001,op:flip1,pos:1170,+cov
index 2907e71ea..2907e71ea 100644
--- a/src/mint/afl-tests/id:000742,src:000001,op:flip1,pos:1170,+cov
+++ b/src/exchange/afl-tests/id:000742,src:000001,op:flip1,pos:1170,+cov
diff --git a/src/mint/afl-tests/id:000742,src:000001,op:flip2,pos:1135,+cov b/src/exchange/afl-tests/id:000742,src:000001,op:flip2,pos:1135,+cov
index 802374512..802374512 100644
--- a/src/mint/afl-tests/id:000742,src:000001,op:flip2,pos:1135,+cov
+++ b/src/exchange/afl-tests/id:000742,src:000001,op:flip2,pos:1135,+cov
diff --git a/src/mint/afl-tests/id:000743,src:000001,op:flip1,pos:1205,+cov b/src/exchange/afl-tests/id:000743,src:000001,op:flip1,pos:1205,+cov
index 21fa76491..21fa76491 100644
--- a/src/mint/afl-tests/id:000743,src:000001,op:flip1,pos:1205,+cov
+++ b/src/exchange/afl-tests/id:000743,src:000001,op:flip1,pos:1205,+cov
diff --git a/src/mint/afl-tests/id:000743,src:000001,op:flip2,pos:1286,+cov b/src/exchange/afl-tests/id:000743,src:000001,op:flip2,pos:1286,+cov
index 8db7aad8e..8db7aad8e 100644
--- a/src/mint/afl-tests/id:000743,src:000001,op:flip2,pos:1286,+cov
+++ b/src/exchange/afl-tests/id:000743,src:000001,op:flip2,pos:1286,+cov
diff --git a/src/mint/afl-tests/id:000744,src:000001,op:flip1,pos:1301,+cov b/src/exchange/afl-tests/id:000744,src:000001,op:flip1,pos:1301,+cov
index fa0448f40..fa0448f40 100644
--- a/src/mint/afl-tests/id:000744,src:000001,op:flip1,pos:1301,+cov
+++ b/src/exchange/afl-tests/id:000744,src:000001,op:flip1,pos:1301,+cov
diff --git a/src/mint/afl-tests/id:000744,src:000001,op:flip2,pos:1655,+cov b/src/exchange/afl-tests/id:000744,src:000001,op:flip2,pos:1655,+cov
index 127b0f508..127b0f508 100644
--- a/src/mint/afl-tests/id:000744,src:000001,op:flip2,pos:1655,+cov
+++ b/src/exchange/afl-tests/id:000744,src:000001,op:flip2,pos:1655,+cov
diff --git a/src/mint/afl-tests/id:000745,src:000001,op:flip1,pos:1369,+cov b/src/exchange/afl-tests/id:000745,src:000001,op:flip1,pos:1369,+cov
index 03a4527fe..03a4527fe 100644
--- a/src/mint/afl-tests/id:000745,src:000001,op:flip1,pos:1369,+cov
+++ b/src/exchange/afl-tests/id:000745,src:000001,op:flip1,pos:1369,+cov
diff --git a/src/mint/afl-tests/id:000745,src:000001,op:flip4,pos:50,+cov b/src/exchange/afl-tests/id:000745,src:000001,op:flip4,pos:50,+cov
index 76d7a5e66..76d7a5e66 100644
--- a/src/mint/afl-tests/id:000745,src:000001,op:flip4,pos:50,+cov
+++ b/src/exchange/afl-tests/id:000745,src:000001,op:flip4,pos:50,+cov
diff --git a/src/mint/afl-tests/id:000746,src:000001,op:flip1,pos:1378,+cov b/src/exchange/afl-tests/id:000746,src:000001,op:flip1,pos:1378,+cov
index f6dacce49..f6dacce49 100644
--- a/src/mint/afl-tests/id:000746,src:000001,op:flip1,pos:1378,+cov
+++ b/src/exchange/afl-tests/id:000746,src:000001,op:flip1,pos:1378,+cov
diff --git a/src/mint/afl-tests/id:000746,src:000001,op:flip4,pos:122,+cov b/src/exchange/afl-tests/id:000746,src:000001,op:flip4,pos:122,+cov
index 60bf24fc1..60bf24fc1 100644
--- a/src/mint/afl-tests/id:000746,src:000001,op:flip4,pos:122,+cov
+++ b/src/exchange/afl-tests/id:000746,src:000001,op:flip4,pos:122,+cov
diff --git a/src/mint/afl-tests/id:000747,src:000001,op:flip1,pos:1474,+cov b/src/exchange/afl-tests/id:000747,src:000001,op:flip1,pos:1474,+cov
index 9c51034e3..9c51034e3 100644
--- a/src/mint/afl-tests/id:000747,src:000001,op:flip1,pos:1474,+cov
+++ b/src/exchange/afl-tests/id:000747,src:000001,op:flip1,pos:1474,+cov
diff --git a/src/mint/afl-tests/id:000747,src:000001,op:flip4,pos:351,+cov b/src/exchange/afl-tests/id:000747,src:000001,op:flip4,pos:351,+cov
index a0878cb07..a0878cb07 100644
--- a/src/mint/afl-tests/id:000747,src:000001,op:flip4,pos:351,+cov
+++ b/src/exchange/afl-tests/id:000747,src:000001,op:flip4,pos:351,+cov
diff --git a/src/mint/afl-tests/id:000748,src:000001,op:flip1,pos:1510,+cov b/src/exchange/afl-tests/id:000748,src:000001,op:flip1,pos:1510,+cov
index 6e75c966c..6e75c966c 100644
--- a/src/mint/afl-tests/id:000748,src:000001,op:flip1,pos:1510,+cov
+++ b/src/exchange/afl-tests/id:000748,src:000001,op:flip1,pos:1510,+cov
diff --git a/src/mint/afl-tests/id:000748,src:000001,op:flip4,pos:569,+cov b/src/exchange/afl-tests/id:000748,src:000001,op:flip4,pos:569,+cov
index 61eaeaccf..61eaeaccf 100644
--- a/src/mint/afl-tests/id:000748,src:000001,op:flip4,pos:569,+cov
+++ b/src/exchange/afl-tests/id:000748,src:000001,op:flip4,pos:569,+cov
diff --git a/src/mint/afl-tests/id:000749,src:000001,op:flip1,pos:1634 b/src/exchange/afl-tests/id:000749,src:000001,op:flip1,pos:1634
index cb0f68dee..cb0f68dee 100644
--- a/src/mint/afl-tests/id:000749,src:000001,op:flip1,pos:1634
+++ b/src/exchange/afl-tests/id:000749,src:000001,op:flip1,pos:1634
diff --git a/src/mint/afl-tests/id:000749,src:000001,op:flip4,pos:788,+cov b/src/exchange/afl-tests/id:000749,src:000001,op:flip4,pos:788,+cov
index ba918f16e..ba918f16e 100644
--- a/src/mint/afl-tests/id:000749,src:000001,op:flip4,pos:788,+cov
+++ b/src/exchange/afl-tests/id:000749,src:000001,op:flip4,pos:788,+cov
diff --git a/src/mint/afl-tests/id:000750,src:000001,op:flip1,pos:1657,+cov b/src/exchange/afl-tests/id:000750,src:000001,op:flip1,pos:1657,+cov
index f502490a4..f502490a4 100644
--- a/src/mint/afl-tests/id:000750,src:000001,op:flip1,pos:1657,+cov
+++ b/src/exchange/afl-tests/id:000750,src:000001,op:flip1,pos:1657,+cov
diff --git a/src/mint/afl-tests/id:000750,src:000001,op:flip4,pos:1198,+cov b/src/exchange/afl-tests/id:000750,src:000001,op:flip4,pos:1198,+cov
index b463b75f9..b463b75f9 100644
--- a/src/mint/afl-tests/id:000750,src:000001,op:flip4,pos:1198,+cov
+++ b/src/exchange/afl-tests/id:000750,src:000001,op:flip4,pos:1198,+cov
diff --git a/src/mint/afl-tests/id:000751,src:000001,op:flip1,pos:1712,+cov b/src/exchange/afl-tests/id:000751,src:000001,op:flip1,pos:1712,+cov
index ed22ac28c..ed22ac28c 100644
--- a/src/mint/afl-tests/id:000751,src:000001,op:flip1,pos:1712,+cov
+++ b/src/exchange/afl-tests/id:000751,src:000001,op:flip1,pos:1712,+cov
diff --git a/src/mint/afl-tests/id:000751,src:000001,op:flip8,pos:67,+cov b/src/exchange/afl-tests/id:000751,src:000001,op:flip8,pos:67,+cov
index 48167b48c..48167b48c 100644
--- a/src/mint/afl-tests/id:000751,src:000001,op:flip8,pos:67,+cov
+++ b/src/exchange/afl-tests/id:000751,src:000001,op:flip8,pos:67,+cov
diff --git a/src/mint/afl-tests/id:000752,src:000001,op:flip2,pos:21,+cov b/src/exchange/afl-tests/id:000752,src:000001,op:flip2,pos:21,+cov
index 95dde0c90..95dde0c90 100644
--- a/src/mint/afl-tests/id:000752,src:000001,op:flip2,pos:21,+cov
+++ b/src/exchange/afl-tests/id:000752,src:000001,op:flip2,pos:21,+cov
diff --git a/src/mint/afl-tests/id:000752,src:000001,op:flip8,pos:1661,+cov b/src/exchange/afl-tests/id:000752,src:000001,op:flip8,pos:1661,+cov
index 7a749970d..7a749970d 100644
--- a/src/mint/afl-tests/id:000752,src:000001,op:flip8,pos:1661,+cov
+++ b/src/exchange/afl-tests/id:000752,src:000001,op:flip8,pos:1661,+cov
diff --git a/src/mint/afl-tests/id:000753,src:000001,op:flip16,pos:390,+cov b/src/exchange/afl-tests/id:000753,src:000001,op:flip16,pos:390,+cov
index 4088f86e9..4088f86e9 100644
--- a/src/mint/afl-tests/id:000753,src:000001,op:flip16,pos:390,+cov
+++ b/src/exchange/afl-tests/id:000753,src:000001,op:flip16,pos:390,+cov
diff --git a/src/mint/afl-tests/id:000753,src:000001,op:flip2,pos:39,+cov b/src/exchange/afl-tests/id:000753,src:000001,op:flip2,pos:39,+cov
index 63802d8b9..63802d8b9 100644
--- a/src/mint/afl-tests/id:000753,src:000001,op:flip2,pos:39,+cov
+++ b/src/exchange/afl-tests/id:000753,src:000001,op:flip2,pos:39,+cov
diff --git a/src/mint/afl-tests/id:000754,src:000001,op:flip2,pos:105,+cov b/src/exchange/afl-tests/id:000754,src:000001,op:flip2,pos:105,+cov
index 61d14841d..61d14841d 100644
--- a/src/mint/afl-tests/id:000754,src:000001,op:flip2,pos:105,+cov
+++ b/src/exchange/afl-tests/id:000754,src:000001,op:flip2,pos:105,+cov
diff --git a/src/mint/afl-tests/id:000754,src:000001,op:flip32,pos:339,+cov b/src/exchange/afl-tests/id:000754,src:000001,op:flip32,pos:339,+cov
index e33270ceb..e33270ceb 100644
--- a/src/mint/afl-tests/id:000754,src:000001,op:flip32,pos:339,+cov
+++ b/src/exchange/afl-tests/id:000754,src:000001,op:flip32,pos:339,+cov
diff --git a/src/mint/afl-tests/id:000755,src:000001,op:flip2,pos:890,+cov b/src/exchange/afl-tests/id:000755,src:000001,op:flip2,pos:890,+cov
index 4021f8c6b..4021f8c6b 100644
--- a/src/mint/afl-tests/id:000755,src:000001,op:flip2,pos:890,+cov
+++ b/src/exchange/afl-tests/id:000755,src:000001,op:flip2,pos:890,+cov
diff --git a/src/mint/afl-tests/id:000755,src:000001,op:flip32,pos:975,+cov b/src/exchange/afl-tests/id:000755,src:000001,op:flip32,pos:975,+cov
index f0676060f..f0676060f 100644
--- a/src/mint/afl-tests/id:000755,src:000001,op:flip32,pos:975,+cov
+++ b/src/exchange/afl-tests/id:000755,src:000001,op:flip32,pos:975,+cov
diff --git a/src/mint/afl-tests/id:000756,src:000001,op:arith8,pos:10,val:-30,+cov b/src/exchange/afl-tests/id:000756,src:000001,op:arith8,pos:10,val:-30,+cov
index f01f71ec9..f01f71ec9 100644
--- a/src/mint/afl-tests/id:000756,src:000001,op:arith8,pos:10,val:-30,+cov
+++ b/src/exchange/afl-tests/id:000756,src:000001,op:arith8,pos:10,val:-30,+cov
diff --git a/src/mint/afl-tests/id:000756,src:000001,op:flip2,pos:975,+cov b/src/exchange/afl-tests/id:000756,src:000001,op:flip2,pos:975,+cov
index 3bb81fc65..3bb81fc65 100644
--- a/src/mint/afl-tests/id:000756,src:000001,op:flip2,pos:975,+cov
+++ b/src/exchange/afl-tests/id:000756,src:000001,op:flip2,pos:975,+cov
diff --git a/src/mint/afl-tests/id:000757,src:000001,op:arith8,pos:46,val:+9,+cov b/src/exchange/afl-tests/id:000757,src:000001,op:arith8,pos:46,val:+9,+cov
index e94ab3dd4..e94ab3dd4 100644
--- a/src/mint/afl-tests/id:000757,src:000001,op:arith8,pos:46,val:+9,+cov
+++ b/src/exchange/afl-tests/id:000757,src:000001,op:arith8,pos:46,val:+9,+cov
diff --git a/src/mint/afl-tests/id:000757,src:000001,op:flip2,pos:1509,+cov b/src/exchange/afl-tests/id:000757,src:000001,op:flip2,pos:1509,+cov
index f237a8951..f237a8951 100644
--- a/src/mint/afl-tests/id:000757,src:000001,op:flip2,pos:1509,+cov
+++ b/src/exchange/afl-tests/id:000757,src:000001,op:flip2,pos:1509,+cov
diff --git a/src/mint/afl-tests/id:000758,src:000001,op:arith8,pos:72,val:+5,+cov b/src/exchange/afl-tests/id:000758,src:000001,op:arith8,pos:72,val:+5,+cov
index 4e956d1e1..4e956d1e1 100644
--- a/src/mint/afl-tests/id:000758,src:000001,op:arith8,pos:72,val:+5,+cov
+++ b/src/exchange/afl-tests/id:000758,src:000001,op:arith8,pos:72,val:+5,+cov
diff --git a/src/mint/afl-tests/id:000758,src:000001,op:flip2,pos:1662,+cov b/src/exchange/afl-tests/id:000758,src:000001,op:flip2,pos:1662,+cov
index 725d382ed..725d382ed 100644
--- a/src/mint/afl-tests/id:000758,src:000001,op:flip2,pos:1662,+cov
+++ b/src/exchange/afl-tests/id:000758,src:000001,op:flip2,pos:1662,+cov
diff --git a/src/mint/afl-tests/id:000759,src:000001,op:flip4,pos:32,+cov b/src/exchange/afl-tests/id:000759,src:000001,op:flip4,pos:32,+cov
index 1641ffdbe..1641ffdbe 100644
--- a/src/mint/afl-tests/id:000759,src:000001,op:flip4,pos:32,+cov
+++ b/src/exchange/afl-tests/id:000759,src:000001,op:flip4,pos:32,+cov
diff --git a/src/mint/afl-tests/id:000759,src:000002,op:flip1,pos:30 b/src/exchange/afl-tests/id:000759,src:000002,op:flip1,pos:30
index 855862e8a..855862e8a 100644
--- a/src/mint/afl-tests/id:000759,src:000002,op:flip1,pos:30
+++ b/src/exchange/afl-tests/id:000759,src:000002,op:flip1,pos:30
diff --git a/src/mint/afl-tests/id:000760,src:000001,op:flip4,pos:300,+cov b/src/exchange/afl-tests/id:000760,src:000001,op:flip4,pos:300,+cov
index 7ab6d56b3..7ab6d56b3 100644
--- a/src/mint/afl-tests/id:000760,src:000001,op:flip4,pos:300,+cov
+++ b/src/exchange/afl-tests/id:000760,src:000001,op:flip4,pos:300,+cov
diff --git a/src/mint/afl-tests/id:000760,src:000002,op:flip1,pos:50 b/src/exchange/afl-tests/id:000760,src:000002,op:flip1,pos:50
index 934dffa81..934dffa81 100644
--- a/src/mint/afl-tests/id:000760,src:000002,op:flip1,pos:50
+++ b/src/exchange/afl-tests/id:000760,src:000002,op:flip1,pos:50
diff --git a/src/mint/afl-tests/id:000761,src:000001,op:flip4,pos:457,+cov b/src/exchange/afl-tests/id:000761,src:000001,op:flip4,pos:457,+cov
index 31745f548..31745f548 100644
--- a/src/mint/afl-tests/id:000761,src:000001,op:flip4,pos:457,+cov
+++ b/src/exchange/afl-tests/id:000761,src:000001,op:flip4,pos:457,+cov
diff --git a/src/mint/afl-tests/id:000761,src:000002,op:flip1,pos:50,+cov b/src/exchange/afl-tests/id:000761,src:000002,op:flip1,pos:50,+cov
index b4a99b0f7..b4a99b0f7 100644
--- a/src/mint/afl-tests/id:000761,src:000002,op:flip1,pos:50,+cov
+++ b/src/exchange/afl-tests/id:000761,src:000002,op:flip1,pos:50,+cov
diff --git a/src/mint/afl-tests/id:000762,src:000001,op:flip4,pos:1507,+cov b/src/exchange/afl-tests/id:000762,src:000001,op:flip4,pos:1507,+cov
index c5eb14246..c5eb14246 100644
--- a/src/mint/afl-tests/id:000762,src:000001,op:flip4,pos:1507,+cov
+++ b/src/exchange/afl-tests/id:000762,src:000001,op:flip4,pos:1507,+cov
diff --git a/src/mint/afl-tests/id:000762,src:000002,op:flip1,pos:63 b/src/exchange/afl-tests/id:000762,src:000002,op:flip1,pos:63
index 3d68144a1..3d68144a1 100644
--- a/src/mint/afl-tests/id:000762,src:000002,op:flip1,pos:63
+++ b/src/exchange/afl-tests/id:000762,src:000002,op:flip1,pos:63
diff --git a/src/mint/afl-tests/id:000763,src:000001,op:flip4,pos:1549,+cov b/src/exchange/afl-tests/id:000763,src:000001,op:flip4,pos:1549,+cov
index 775a9f9bb..775a9f9bb 100644
--- a/src/mint/afl-tests/id:000763,src:000001,op:flip4,pos:1549,+cov
+++ b/src/exchange/afl-tests/id:000763,src:000001,op:flip4,pos:1549,+cov
diff --git a/src/mint/afl-tests/id:000763,src:000002,op:flip1,pos:76 b/src/exchange/afl-tests/id:000763,src:000002,op:flip1,pos:76
index 1146573f4..1146573f4 100644
--- a/src/mint/afl-tests/id:000763,src:000002,op:flip1,pos:76
+++ b/src/exchange/afl-tests/id:000763,src:000002,op:flip1,pos:76
diff --git a/src/mint/afl-tests/id:000764,src:000001,op:flip4,pos:1577,+cov b/src/exchange/afl-tests/id:000764,src:000001,op:flip4,pos:1577,+cov
index dc3378082..dc3378082 100644
--- a/src/mint/afl-tests/id:000764,src:000001,op:flip4,pos:1577,+cov
+++ b/src/exchange/afl-tests/id:000764,src:000001,op:flip4,pos:1577,+cov
diff --git a/src/mint/afl-tests/id:000764,src:000002,op:flip1,pos:135 b/src/exchange/afl-tests/id:000764,src:000002,op:flip1,pos:135
index 9d9b261b0..9d9b261b0 100644
--- a/src/mint/afl-tests/id:000764,src:000002,op:flip1,pos:135
+++ b/src/exchange/afl-tests/id:000764,src:000002,op:flip1,pos:135
diff --git a/src/mint/afl-tests/id:000765,src:000001,op:flip8,pos:899,+cov b/src/exchange/afl-tests/id:000765,src:000001,op:flip8,pos:899,+cov
index 5046a0a2e..5046a0a2e 100644
--- a/src/mint/afl-tests/id:000765,src:000001,op:flip8,pos:899,+cov
+++ b/src/exchange/afl-tests/id:000765,src:000001,op:flip8,pos:899,+cov
diff --git a/src/mint/afl-tests/id:000765,src:000002,op:flip1,pos:143,+cov b/src/exchange/afl-tests/id:000765,src:000002,op:flip1,pos:143,+cov
index 31441e1bd..31441e1bd 100644
--- a/src/mint/afl-tests/id:000765,src:000002,op:flip1,pos:143,+cov
+++ b/src/exchange/afl-tests/id:000765,src:000002,op:flip1,pos:143,+cov
diff --git a/src/mint/afl-tests/id:000766,src:000001,op:flip8,pos:1457,+cov b/src/exchange/afl-tests/id:000766,src:000001,op:flip8,pos:1457,+cov
index a18b0272b..a18b0272b 100644
--- a/src/mint/afl-tests/id:000766,src:000001,op:flip8,pos:1457,+cov
+++ b/src/exchange/afl-tests/id:000766,src:000001,op:flip8,pos:1457,+cov
diff --git a/src/mint/afl-tests/id:000766,src:000002,op:flip4,pos:8,+cov b/src/exchange/afl-tests/id:000766,src:000002,op:flip4,pos:8,+cov
index b4feccce4..b4feccce4 100644
--- a/src/mint/afl-tests/id:000766,src:000002,op:flip4,pos:8,+cov
+++ b/src/exchange/afl-tests/id:000766,src:000002,op:flip4,pos:8,+cov
diff --git a/src/mint/afl-tests/id:000767,src:000001,op:flip32,pos:301,+cov b/src/exchange/afl-tests/id:000767,src:000001,op:flip32,pos:301,+cov
index 03c18d5d4..03c18d5d4 100644
--- a/src/mint/afl-tests/id:000767,src:000001,op:flip32,pos:301,+cov
+++ b/src/exchange/afl-tests/id:000767,src:000001,op:flip32,pos:301,+cov
diff --git a/src/mint/afl-tests/id:000767,src:000002,op:flip4,pos:117,+cov b/src/exchange/afl-tests/id:000767,src:000002,op:flip4,pos:117,+cov
index 63b3ddf08..63b3ddf08 100644
--- a/src/mint/afl-tests/id:000767,src:000002,op:flip4,pos:117,+cov
+++ b/src/exchange/afl-tests/id:000767,src:000002,op:flip4,pos:117,+cov
diff --git a/src/mint/afl-tests/id:000768,src:000001,op:arith8,pos:18,val:+11,+cov b/src/exchange/afl-tests/id:000768,src:000001,op:arith8,pos:18,val:+11,+cov
index 96c53e4ac..96c53e4ac 100644
--- a/src/mint/afl-tests/id:000768,src:000001,op:arith8,pos:18,val:+11,+cov
+++ b/src/exchange/afl-tests/id:000768,src:000001,op:arith8,pos:18,val:+11,+cov
diff --git a/src/mint/afl-tests/id:000768,src:000002,op:arith8,pos:11,val:-1,+cov b/src/exchange/afl-tests/id:000768,src:000002,op:arith8,pos:11,val:-1,+cov
index 3e6a434b9..3e6a434b9 100644
--- a/src/mint/afl-tests/id:000768,src:000002,op:arith8,pos:11,val:-1,+cov
+++ b/src/exchange/afl-tests/id:000768,src:000002,op:arith8,pos:11,val:-1,+cov
diff --git a/src/mint/afl-tests/id:000769,src:000001,op:arith8,pos:33,val:+17,+cov b/src/exchange/afl-tests/id:000769,src:000001,op:arith8,pos:33,val:+17,+cov
index 52829db06..52829db06 100644
--- a/src/mint/afl-tests/id:000769,src:000001,op:arith8,pos:33,val:+17,+cov
+++ b/src/exchange/afl-tests/id:000769,src:000001,op:arith8,pos:33,val:+17,+cov
diff --git a/src/mint/afl-tests/id:000769,src:000002,op:arith8,pos:20,val:+13,+cov b/src/exchange/afl-tests/id:000769,src:000002,op:arith8,pos:20,val:+13,+cov
index 13df3f9f3..13df3f9f3 100644
--- a/src/mint/afl-tests/id:000769,src:000002,op:arith8,pos:20,val:+13,+cov
+++ b/src/exchange/afl-tests/id:000769,src:000002,op:arith8,pos:20,val:+13,+cov
diff --git a/src/mint/afl-tests/id:000770,src:000002,op:arith8,pos:34,val:-6,+cov b/src/exchange/afl-tests/id:000770,src:000002,op:arith8,pos:34,val:-6,+cov
index d43c50e81..d43c50e81 100644
--- a/src/mint/afl-tests/id:000770,src:000002,op:arith8,pos:34,val:-6,+cov
+++ b/src/exchange/afl-tests/id:000770,src:000002,op:arith8,pos:34,val:-6,+cov
diff --git a/src/mint/afl-tests/id:000770,src:000002,op:flip1,pos:30 b/src/exchange/afl-tests/id:000770,src:000002,op:flip1,pos:30
index 855862e8a..855862e8a 100644
--- a/src/mint/afl-tests/id:000770,src:000002,op:flip1,pos:30
+++ b/src/exchange/afl-tests/id:000770,src:000002,op:flip1,pos:30
diff --git a/src/mint/afl-tests/id:000771,src:000002,op:arith8,pos:105,val:+35,+cov b/src/exchange/afl-tests/id:000771,src:000002,op:arith8,pos:105,val:+35,+cov
index d7e5b953e..d7e5b953e 100644
--- a/src/mint/afl-tests/id:000771,src:000002,op:arith8,pos:105,val:+35,+cov
+++ b/src/exchange/afl-tests/id:000771,src:000002,op:arith8,pos:105,val:+35,+cov
diff --git a/src/mint/afl-tests/id:000771,src:000002,op:flip1,pos:45,+cov b/src/exchange/afl-tests/id:000771,src:000002,op:flip1,pos:45,+cov
index 53ea0df40..53ea0df40 100644
--- a/src/mint/afl-tests/id:000771,src:000002,op:flip1,pos:45,+cov
+++ b/src/exchange/afl-tests/id:000771,src:000002,op:flip1,pos:45,+cov
diff --git a/src/mint/afl-tests/id:000772,src:000002,op:arith8,pos:109,val:-35 b/src/exchange/afl-tests/id:000772,src:000002,op:arith8,pos:109,val:-35
index 627cf273f..627cf273f 100644
--- a/src/mint/afl-tests/id:000772,src:000002,op:arith8,pos:109,val:-35
+++ b/src/exchange/afl-tests/id:000772,src:000002,op:arith8,pos:109,val:-35
diff --git a/src/mint/afl-tests/id:000772,src:000002,op:flip1,pos:50 b/src/exchange/afl-tests/id:000772,src:000002,op:flip1,pos:50
index 934dffa81..934dffa81 100644
--- a/src/mint/afl-tests/id:000772,src:000002,op:flip1,pos:50
+++ b/src/exchange/afl-tests/id:000772,src:000002,op:flip1,pos:50
diff --git a/src/mint/afl-tests/id:000773,src:000002,op:arith8,pos:131,val:+5,+cov b/src/exchange/afl-tests/id:000773,src:000002,op:arith8,pos:131,val:+5,+cov
index 299d0445c..299d0445c 100644
--- a/src/mint/afl-tests/id:000773,src:000002,op:arith8,pos:131,val:+5,+cov
+++ b/src/exchange/afl-tests/id:000773,src:000002,op:arith8,pos:131,val:+5,+cov
diff --git a/src/mint/afl-tests/id:000773,src:000002,op:flip1,pos:63 b/src/exchange/afl-tests/id:000773,src:000002,op:flip1,pos:63
index 3d68144a1..3d68144a1 100644
--- a/src/mint/afl-tests/id:000773,src:000002,op:flip1,pos:63
+++ b/src/exchange/afl-tests/id:000773,src:000002,op:flip1,pos:63
diff --git a/src/mint/afl-tests/id:000774,src:000002,op:arith8,pos:137,val:+9,+cov b/src/exchange/afl-tests/id:000774,src:000002,op:arith8,pos:137,val:+9,+cov
index ab1429558..ab1429558 100644
--- a/src/mint/afl-tests/id:000774,src:000002,op:arith8,pos:137,val:+9,+cov
+++ b/src/exchange/afl-tests/id:000774,src:000002,op:arith8,pos:137,val:+9,+cov
diff --git a/src/mint/afl-tests/id:000774,src:000002,op:flip1,pos:76 b/src/exchange/afl-tests/id:000774,src:000002,op:flip1,pos:76
index 1146573f4..1146573f4 100644
--- a/src/mint/afl-tests/id:000774,src:000002,op:flip1,pos:76
+++ b/src/exchange/afl-tests/id:000774,src:000002,op:flip1,pos:76
diff --git a/src/mint/afl-tests/id:000775,src:000002,op:arith16,pos:55,val:-29,+cov b/src/exchange/afl-tests/id:000775,src:000002,op:arith16,pos:55,val:-29,+cov
index 064c3d270..064c3d270 100644
--- a/src/mint/afl-tests/id:000775,src:000002,op:arith16,pos:55,val:-29,+cov
+++ b/src/exchange/afl-tests/id:000775,src:000002,op:arith16,pos:55,val:-29,+cov
diff --git a/src/mint/afl-tests/id:000775,src:000002,op:flip1,pos:107,+cov b/src/exchange/afl-tests/id:000775,src:000002,op:flip1,pos:107,+cov
index 8ef36b06e..8ef36b06e 100644
--- a/src/mint/afl-tests/id:000775,src:000002,op:flip1,pos:107,+cov
+++ b/src/exchange/afl-tests/id:000775,src:000002,op:flip1,pos:107,+cov
diff --git a/src/mint/afl-tests/id:000776,src:000002,op:flip1,pos:135 b/src/exchange/afl-tests/id:000776,src:000002,op:flip1,pos:135
index 9d9b261b0..9d9b261b0 100644
--- a/src/mint/afl-tests/id:000776,src:000002,op:flip1,pos:135
+++ b/src/exchange/afl-tests/id:000776,src:000002,op:flip1,pos:135
diff --git a/src/mint/afl-tests/id:000776,src:000002,op:int16,pos:27,val:+16,+cov b/src/exchange/afl-tests/id:000776,src:000002,op:int16,pos:27,val:+16,+cov
index 0edb0bad8..0edb0bad8 100644
--- a/src/mint/afl-tests/id:000776,src:000002,op:int16,pos:27,val:+16,+cov
+++ b/src/exchange/afl-tests/id:000776,src:000002,op:int16,pos:27,val:+16,+cov
diff --git a/src/mint/afl-tests/id:000777,src:000002,op:flip2,pos:56,+cov b/src/exchange/afl-tests/id:000777,src:000002,op:flip2,pos:56,+cov
index fe3a2e211..fe3a2e211 100644
--- a/src/mint/afl-tests/id:000777,src:000002,op:flip2,pos:56,+cov
+++ b/src/exchange/afl-tests/id:000777,src:000002,op:flip2,pos:56,+cov
diff --git a/src/mint/afl-tests/id:000777,src:000002,op:int16,pos:96,val:+32 b/src/exchange/afl-tests/id:000777,src:000002,op:int16,pos:96,val:+32
index 67cd9e4b7..67cd9e4b7 100644
--- a/src/mint/afl-tests/id:000777,src:000002,op:int16,pos:96,val:+32
+++ b/src/exchange/afl-tests/id:000777,src:000002,op:int16,pos:96,val:+32
diff --git a/src/mint/afl-tests/id:000778,src:000002,op:flip2,pos:113,+cov b/src/exchange/afl-tests/id:000778,src:000002,op:flip2,pos:113,+cov
index f57a19b93..f57a19b93 100644
--- a/src/mint/afl-tests/id:000778,src:000002,op:flip2,pos:113,+cov
+++ b/src/exchange/afl-tests/id:000778,src:000002,op:flip2,pos:113,+cov
diff --git a/src/mint/afl-tests/id:000778,src:000002,op:int32,pos:53,val:be:+32767,+cov b/src/exchange/afl-tests/id:000778,src:000002,op:int32,pos:53,val:be:+32767,+cov
index de506476c..de506476c 100644
--- a/src/mint/afl-tests/id:000778,src:000002,op:int32,pos:53,val:be:+32767,+cov
+++ b/src/exchange/afl-tests/id:000778,src:000002,op:int32,pos:53,val:be:+32767,+cov
diff --git a/src/mint/afl-tests/id:000779,src:000002,op:ext_AO,pos:22,+cov b/src/exchange/afl-tests/id:000779,src:000002,op:ext_AO,pos:22,+cov
index c63475cbd..c63475cbd 100644
--- a/src/mint/afl-tests/id:000779,src:000002,op:ext_AO,pos:22,+cov
+++ b/src/exchange/afl-tests/id:000779,src:000002,op:ext_AO,pos:22,+cov
diff --git a/src/mint/afl-tests/id:000779,src:000002,op:flip4,pos:15,+cov b/src/exchange/afl-tests/id:000779,src:000002,op:flip4,pos:15,+cov
index 6eba8b7ad..6eba8b7ad 100644
--- a/src/mint/afl-tests/id:000779,src:000002,op:flip4,pos:15,+cov
+++ b/src/exchange/afl-tests/id:000779,src:000002,op:flip4,pos:15,+cov
diff --git a/src/mint/afl-tests/id:000780,src:000002,op:arith8,pos:10,val:-7,+cov b/src/exchange/afl-tests/id:000780,src:000002,op:arith8,pos:10,val:-7,+cov
index ee27cb8a0..ee27cb8a0 100644
--- a/src/mint/afl-tests/id:000780,src:000002,op:arith8,pos:10,val:-7,+cov
+++ b/src/exchange/afl-tests/id:000780,src:000002,op:arith8,pos:10,val:-7,+cov
diff --git a/src/mint/afl-tests/id:000780,src:000002,op:ext_AO,pos:130,+cov b/src/exchange/afl-tests/id:000780,src:000002,op:ext_AO,pos:130,+cov
index ff74e883e..ff74e883e 100644
--- a/src/mint/afl-tests/id:000780,src:000002,op:ext_AO,pos:130,+cov
+++ b/src/exchange/afl-tests/id:000780,src:000002,op:ext_AO,pos:130,+cov
diff --git a/src/mint/afl-tests/id:000781,src:000002,op:arith8,pos:29,val:+21,+cov b/src/exchange/afl-tests/id:000781,src:000002,op:arith8,pos:29,val:+21,+cov
index 7f575f41f..7f575f41f 100644
--- a/src/mint/afl-tests/id:000781,src:000002,op:arith8,pos:29,val:+21,+cov
+++ b/src/exchange/afl-tests/id:000781,src:000002,op:arith8,pos:29,val:+21,+cov
diff --git a/src/mint/afl-tests/id:000781,src:000002,op:havoc,rep:8 b/src/exchange/afl-tests/id:000781,src:000002,op:havoc,rep:8
index e8b3e6341..e8b3e6341 100644
--- a/src/mint/afl-tests/id:000781,src:000002,op:havoc,rep:8
+++ b/src/exchange/afl-tests/id:000781,src:000002,op:havoc,rep:8
diff --git a/src/mint/afl-tests/id:000782,src:000002,op:arith8,pos:109,val:-35 b/src/exchange/afl-tests/id:000782,src:000002,op:arith8,pos:109,val:-35
index 627cf273f..627cf273f 100644
--- a/src/mint/afl-tests/id:000782,src:000002,op:arith8,pos:109,val:-35
+++ b/src/exchange/afl-tests/id:000782,src:000002,op:arith8,pos:109,val:-35
diff --git a/src/mint/afl-tests/id:000782,src:000002,op:havoc,rep:2 b/src/exchange/afl-tests/id:000782,src:000002,op:havoc,rep:2
index a3f552d8a..a3f552d8a 100644
--- a/src/mint/afl-tests/id:000782,src:000002,op:havoc,rep:2
+++ b/src/exchange/afl-tests/id:000782,src:000002,op:havoc,rep:2
diff --git a/src/mint/afl-tests/id:000783,src:000002,op:arith8,pos:132,val:+34,+cov b/src/exchange/afl-tests/id:000783,src:000002,op:arith8,pos:132,val:+34,+cov
index 8f2ddd856..8f2ddd856 100644
--- a/src/mint/afl-tests/id:000783,src:000002,op:arith8,pos:132,val:+34,+cov
+++ b/src/exchange/afl-tests/id:000783,src:000002,op:arith8,pos:132,val:+34,+cov
diff --git a/src/mint/afl-tests/id:000783,src:000002,op:havoc,rep:4 b/src/exchange/afl-tests/id:000783,src:000002,op:havoc,rep:4
index 95f0a4562..95f0a4562 100644
--- a/src/mint/afl-tests/id:000783,src:000002,op:havoc,rep:4
+++ b/src/exchange/afl-tests/id:000783,src:000002,op:havoc,rep:4
diff --git a/src/mint/afl-tests/id:000784,src:000002,op:havoc,rep:64,+cov b/src/exchange/afl-tests/id:000784,src:000002,op:havoc,rep:64,+cov
index 8e1eac4ff..8e1eac4ff 100644
--- a/src/mint/afl-tests/id:000784,src:000002,op:havoc,rep:64,+cov
+++ b/src/exchange/afl-tests/id:000784,src:000002,op:havoc,rep:64,+cov
diff --git a/src/mint/afl-tests/id:000784,src:000002,op:int16,pos:20,val:-129,+cov b/src/exchange/afl-tests/id:000784,src:000002,op:int16,pos:20,val:-129,+cov
index 3911ed7d0..3911ed7d0 100644
--- a/src/mint/afl-tests/id:000784,src:000002,op:int16,pos:20,val:-129,+cov
+++ b/src/exchange/afl-tests/id:000784,src:000002,op:int16,pos:20,val:-129,+cov
diff --git a/src/mint/afl-tests/id:000785,src:000002,op:havoc,rep:64 b/src/exchange/afl-tests/id:000785,src:000002,op:havoc,rep:64
index 81b62b019..81b62b019 100644
--- a/src/mint/afl-tests/id:000785,src:000002,op:havoc,rep:64
+++ b/src/exchange/afl-tests/id:000785,src:000002,op:havoc,rep:64
diff --git a/src/mint/afl-tests/id:000785,src:000002,op:int16,pos:82,val:+64,+cov b/src/exchange/afl-tests/id:000785,src:000002,op:int16,pos:82,val:+64,+cov
index d619296e0..d619296e0 100644
--- a/src/mint/afl-tests/id:000785,src:000002,op:int16,pos:82,val:+64,+cov
+++ b/src/exchange/afl-tests/id:000785,src:000002,op:int16,pos:82,val:+64,+cov
diff --git a/src/mint/afl-tests/id:000786,src:000002,op:havoc,rep:16 b/src/exchange/afl-tests/id:000786,src:000002,op:havoc,rep:16
index 1130f1233..1130f1233 100644
--- a/src/mint/afl-tests/id:000786,src:000002,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000786,src:000002,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000786,src:000002,op:int16,pos:96,val:+32 b/src/exchange/afl-tests/id:000786,src:000002,op:int16,pos:96,val:+32
index 67cd9e4b7..67cd9e4b7 100644
--- a/src/mint/afl-tests/id:000786,src:000002,op:int16,pos:96,val:+32
+++ b/src/exchange/afl-tests/id:000786,src:000002,op:int16,pos:96,val:+32
diff --git a/src/mint/afl-tests/id:000787,src:000002,op:havoc,rep:64 b/src/exchange/afl-tests/id:000787,src:000002,op:havoc,rep:64
index f2779a35d..f2779a35d 100644
--- a/src/mint/afl-tests/id:000787,src:000002,op:havoc,rep:64
+++ b/src/exchange/afl-tests/id:000787,src:000002,op:havoc,rep:64
diff --git a/src/mint/afl-tests/id:000787,src:000002,op:int16,pos:112,val:be:-128,+cov b/src/exchange/afl-tests/id:000787,src:000002,op:int16,pos:112,val:be:-128,+cov
index 9f708aba8..9f708aba8 100644
--- a/src/mint/afl-tests/id:000787,src:000002,op:int16,pos:112,val:be:-128,+cov
+++ b/src/exchange/afl-tests/id:000787,src:000002,op:int16,pos:112,val:be:-128,+cov
diff --git a/src/mint/afl-tests/id:000788,src:000002,op:havoc,rep:16 b/src/exchange/afl-tests/id:000788,src:000002,op:havoc,rep:16
index 66aaf73b2..66aaf73b2 100644
--- a/src/mint/afl-tests/id:000788,src:000002,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000788,src:000002,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000788,src:000002,op:int32,pos:26,val:+65536,+cov b/src/exchange/afl-tests/id:000788,src:000002,op:int32,pos:26,val:+65536,+cov
index 0fec60a6a..0fec60a6a 100644
--- a/src/mint/afl-tests/id:000788,src:000002,op:int32,pos:26,val:+65536,+cov
+++ b/src/exchange/afl-tests/id:000788,src:000002,op:int32,pos:26,val:+65536,+cov
diff --git a/src/mint/afl-tests/id:000789,src:000002,op:havoc,rep:16 b/src/exchange/afl-tests/id:000789,src:000002,op:havoc,rep:16
index 841dfc97f..841dfc97f 100644
--- a/src/mint/afl-tests/id:000789,src:000002,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000789,src:000002,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000789,src:000002,op:int32,pos:54,val:+32,+cov b/src/exchange/afl-tests/id:000789,src:000002,op:int32,pos:54,val:+32,+cov
index 74c8b8935..74c8b8935 100644
--- a/src/mint/afl-tests/id:000789,src:000002,op:int32,pos:54,val:+32,+cov
+++ b/src/exchange/afl-tests/id:000789,src:000002,op:int32,pos:54,val:+32,+cov
diff --git a/src/mint/afl-tests/id:000790,src:000002,op:ext_AO,pos:95,+cov b/src/exchange/afl-tests/id:000790,src:000002,op:ext_AO,pos:95,+cov
index b335e090c..b335e090c 100644
--- a/src/mint/afl-tests/id:000790,src:000002,op:ext_AO,pos:95,+cov
+++ b/src/exchange/afl-tests/id:000790,src:000002,op:ext_AO,pos:95,+cov
diff --git a/src/mint/afl-tests/id:000790,src:000002,op:havoc,rep:64 b/src/exchange/afl-tests/id:000790,src:000002,op:havoc,rep:64
index 67e5fb73d..67e5fb73d 100644
--- a/src/mint/afl-tests/id:000790,src:000002,op:havoc,rep:64
+++ b/src/exchange/afl-tests/id:000790,src:000002,op:havoc,rep:64
diff --git a/src/mint/afl-tests/id:000791,src:000002,op:ext_AO,pos:98,+cov b/src/exchange/afl-tests/id:000791,src:000002,op:ext_AO,pos:98,+cov
index 348df62f1..348df62f1 100644
--- a/src/mint/afl-tests/id:000791,src:000002,op:ext_AO,pos:98,+cov
+++ b/src/exchange/afl-tests/id:000791,src:000002,op:ext_AO,pos:98,+cov
diff --git a/src/mint/afl-tests/id:000791,src:000002,op:havoc,rep:4 b/src/exchange/afl-tests/id:000791,src:000002,op:havoc,rep:4
index e220de606..e220de606 100644
--- a/src/mint/afl-tests/id:000791,src:000002,op:havoc,rep:4
+++ b/src/exchange/afl-tests/id:000791,src:000002,op:havoc,rep:4
diff --git a/src/mint/afl-tests/id:000792,src:000002,op:ext_AO,pos:130,+cov b/src/exchange/afl-tests/id:000792,src:000002,op:ext_AO,pos:130,+cov
index 470c57813..470c57813 100644
--- a/src/mint/afl-tests/id:000792,src:000002,op:ext_AO,pos:130,+cov
+++ b/src/exchange/afl-tests/id:000792,src:000002,op:ext_AO,pos:130,+cov
diff --git a/src/mint/afl-tests/id:000792,src:000002,op:havoc,rep:8 b/src/exchange/afl-tests/id:000792,src:000002,op:havoc,rep:8
index fd60811be..fd60811be 100644
--- a/src/mint/afl-tests/id:000792,src:000002,op:havoc,rep:8
+++ b/src/exchange/afl-tests/id:000792,src:000002,op:havoc,rep:8
diff --git a/src/mint/afl-tests/id:000793,src:000002,op:ext_AO,pos:135,+cov b/src/exchange/afl-tests/id:000793,src:000002,op:ext_AO,pos:135,+cov
index 5a597015f..5a597015f 100644
--- a/src/mint/afl-tests/id:000793,src:000002,op:ext_AO,pos:135,+cov
+++ b/src/exchange/afl-tests/id:000793,src:000002,op:ext_AO,pos:135,+cov
diff --git a/src/mint/afl-tests/id:000793,src:000002,op:havoc,rep:64 b/src/exchange/afl-tests/id:000793,src:000002,op:havoc,rep:64
index a948c7105..a948c7105 100644
--- a/src/mint/afl-tests/id:000793,src:000002,op:havoc,rep:64
+++ b/src/exchange/afl-tests/id:000793,src:000002,op:havoc,rep:64
diff --git a/src/mint/afl-tests/id:000794,src:000002,op:ext_AO,pos:138,+cov b/src/exchange/afl-tests/id:000794,src:000002,op:ext_AO,pos:138,+cov
index 630f672a4..630f672a4 100644
--- a/src/mint/afl-tests/id:000794,src:000002,op:ext_AO,pos:138,+cov
+++ b/src/exchange/afl-tests/id:000794,src:000002,op:ext_AO,pos:138,+cov
diff --git a/src/mint/afl-tests/id:000794,src:000002,op:havoc,rep:64 b/src/exchange/afl-tests/id:000794,src:000002,op:havoc,rep:64
index 6b9d8bf0f..6b9d8bf0f 100644
--- a/src/mint/afl-tests/id:000794,src:000002,op:havoc,rep:64
+++ b/src/exchange/afl-tests/id:000794,src:000002,op:havoc,rep:64
diff --git a/src/mint/afl-tests/id:000795,src:000002,op:havoc,rep:4 b/src/exchange/afl-tests/id:000795,src:000002,op:havoc,rep:4
index 2c23bdfd2..2c23bdfd2 100644
--- a/src/mint/afl-tests/id:000795,src:000002,op:havoc,rep:4
+++ b/src/exchange/afl-tests/id:000795,src:000002,op:havoc,rep:4
diff --git a/src/mint/afl-tests/id:000795,src:000002,op:havoc,rep:8 b/src/exchange/afl-tests/id:000795,src:000002,op:havoc,rep:8
index 21d5bb40e..21d5bb40e 100644
--- a/src/mint/afl-tests/id:000795,src:000002,op:havoc,rep:8
+++ b/src/exchange/afl-tests/id:000795,src:000002,op:havoc,rep:8
diff --git a/src/mint/afl-tests/id:000796,src:000002,op:havoc,rep:16 b/src/exchange/afl-tests/id:000796,src:000002,op:havoc,rep:16
index afcb1ee34..afcb1ee34 100644
--- a/src/mint/afl-tests/id:000796,src:000002,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000796,src:000002,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000796,src:000002,op:havoc,rep:32,+cov b/src/exchange/afl-tests/id:000796,src:000002,op:havoc,rep:32,+cov
index e1c924b3d..e1c924b3d 100644
--- a/src/mint/afl-tests/id:000796,src:000002,op:havoc,rep:32,+cov
+++ b/src/exchange/afl-tests/id:000796,src:000002,op:havoc,rep:32,+cov
diff --git a/src/mint/afl-tests/id:000797,src:000002,op:havoc,rep:16 b/src/exchange/afl-tests/id:000797,src:000002,op:havoc,rep:16
index d4b3c0e6f..d4b3c0e6f 100644
--- a/src/mint/afl-tests/id:000797,src:000002,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000797,src:000002,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000797,src:000002,op:havoc,rep:2 b/src/exchange/afl-tests/id:000797,src:000002,op:havoc,rep:2
index 106d1dc4c..106d1dc4c 100644
--- a/src/mint/afl-tests/id:000797,src:000002,op:havoc,rep:2
+++ b/src/exchange/afl-tests/id:000797,src:000002,op:havoc,rep:2
diff --git a/src/mint/afl-tests/id:000798,src:000002,op:havoc,rep:16 b/src/exchange/afl-tests/id:000798,src:000002,op:havoc,rep:16
index b30460598..b30460598 100644
--- a/src/mint/afl-tests/id:000798,src:000002,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000798,src:000002,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000798,src:000002,op:havoc,rep:64 b/src/exchange/afl-tests/id:000798,src:000002,op:havoc,rep:64
index 5424d7e8c..5424d7e8c 100644
--- a/src/mint/afl-tests/id:000798,src:000002,op:havoc,rep:64
+++ b/src/exchange/afl-tests/id:000798,src:000002,op:havoc,rep:64
diff --git a/src/mint/afl-tests/id:000799,src:000002,op:havoc,rep:16 b/src/exchange/afl-tests/id:000799,src:000002,op:havoc,rep:16
index 492a1913b..492a1913b 100644
--- a/src/mint/afl-tests/id:000799,src:000002,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000799,src:000002,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000799,src:000002,op:havoc,rep:64 b/src/exchange/afl-tests/id:000799,src:000002,op:havoc,rep:64
index 65dedeab6..65dedeab6 100644
--- a/src/mint/afl-tests/id:000799,src:000002,op:havoc,rep:64
+++ b/src/exchange/afl-tests/id:000799,src:000002,op:havoc,rep:64
diff --git a/src/mint/afl-tests/id:000800,src:000002,op:havoc,rep:4 b/src/exchange/afl-tests/id:000800,src:000002,op:havoc,rep:4
index 435ce5ea3..435ce5ea3 100644
--- a/src/mint/afl-tests/id:000800,src:000002,op:havoc,rep:4
+++ b/src/exchange/afl-tests/id:000800,src:000002,op:havoc,rep:4
diff --git a/src/mint/afl-tests/id:000801,src:000002,op:havoc,rep:128 b/src/exchange/afl-tests/id:000801,src:000002,op:havoc,rep:128
index 8d62efcab..8d62efcab 100644
--- a/src/mint/afl-tests/id:000801,src:000002,op:havoc,rep:128
+++ b/src/exchange/afl-tests/id:000801,src:000002,op:havoc,rep:128
diff --git a/src/mint/afl-tests/id:000801,src:000002,op:havoc,rep:64 b/src/exchange/afl-tests/id:000801,src:000002,op:havoc,rep:64
index b1935635a..b1935635a 100644
--- a/src/mint/afl-tests/id:000801,src:000002,op:havoc,rep:64
+++ b/src/exchange/afl-tests/id:000801,src:000002,op:havoc,rep:64
diff --git a/src/mint/afl-tests/id:000802,src:000002,op:havoc,rep:16 b/src/exchange/afl-tests/id:000802,src:000002,op:havoc,rep:16
index 74b1f2cd0..74b1f2cd0 100644
--- a/src/mint/afl-tests/id:000802,src:000002,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000802,src:000002,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000802,src:000002,op:havoc,rep:4 b/src/exchange/afl-tests/id:000802,src:000002,op:havoc,rep:4
index 197ddcc95..197ddcc95 100644
--- a/src/mint/afl-tests/id:000802,src:000002,op:havoc,rep:4
+++ b/src/exchange/afl-tests/id:000802,src:000002,op:havoc,rep:4
diff --git a/src/mint/afl-tests/id:000803,src:000002,op:havoc,rep:128,+cov b/src/exchange/afl-tests/id:000803,src:000002,op:havoc,rep:128,+cov
index 2988eafb6..2988eafb6 100644
--- a/src/mint/afl-tests/id:000803,src:000002,op:havoc,rep:128,+cov
+++ b/src/exchange/afl-tests/id:000803,src:000002,op:havoc,rep:128,+cov
diff --git a/src/mint/afl-tests/id:000803,src:000002,op:havoc,rep:2 b/src/exchange/afl-tests/id:000803,src:000002,op:havoc,rep:2
index ba9a049aa..ba9a049aa 100644
--- a/src/mint/afl-tests/id:000803,src:000002,op:havoc,rep:2
+++ b/src/exchange/afl-tests/id:000803,src:000002,op:havoc,rep:2
diff --git a/src/mint/afl-tests/id:000804,src:000002,op:havoc,rep:32 b/src/exchange/afl-tests/id:000804,src:000002,op:havoc,rep:32
index d33b92437..d33b92437 100644
--- a/src/mint/afl-tests/id:000804,src:000002,op:havoc,rep:32
+++ b/src/exchange/afl-tests/id:000804,src:000002,op:havoc,rep:32
diff --git a/src/mint/afl-tests/id:000804,src:000002,op:havoc,rep:64 b/src/exchange/afl-tests/id:000804,src:000002,op:havoc,rep:64
index a852f63cb..a852f63cb 100644
--- a/src/mint/afl-tests/id:000804,src:000002,op:havoc,rep:64
+++ b/src/exchange/afl-tests/id:000804,src:000002,op:havoc,rep:64
diff --git a/src/mint/afl-tests/id:000805,src:000002,op:havoc,rep:4 b/src/exchange/afl-tests/id:000805,src:000002,op:havoc,rep:4
index 65ebe63b0..65ebe63b0 100644
--- a/src/mint/afl-tests/id:000805,src:000002,op:havoc,rep:4
+++ b/src/exchange/afl-tests/id:000805,src:000002,op:havoc,rep:4
diff --git a/src/mint/afl-tests/id:000805,src:000003,op:flip1,pos:0,+cov b/src/exchange/afl-tests/id:000805,src:000003,op:flip1,pos:0,+cov
index 3ee9a8173..3ee9a8173 100644
--- a/src/mint/afl-tests/id:000805,src:000003,op:flip1,pos:0,+cov
+++ b/src/exchange/afl-tests/id:000805,src:000003,op:flip1,pos:0,+cov
diff --git a/src/mint/afl-tests/id:000806,src:000002,op:havoc,rep:32 b/src/exchange/afl-tests/id:000806,src:000002,op:havoc,rep:32
index c61ce74ed..c61ce74ed 100644
--- a/src/mint/afl-tests/id:000806,src:000002,op:havoc,rep:32
+++ b/src/exchange/afl-tests/id:000806,src:000002,op:havoc,rep:32
diff --git a/src/mint/afl-tests/id:000806,src:000003,op:flip1,pos:13,+cov b/src/exchange/afl-tests/id:000806,src:000003,op:flip1,pos:13,+cov
index f0652d011..f0652d011 100644
--- a/src/mint/afl-tests/id:000806,src:000003,op:flip1,pos:13,+cov
+++ b/src/exchange/afl-tests/id:000806,src:000003,op:flip1,pos:13,+cov
diff --git a/src/mint/afl-tests/id:000807,src:000002,op:havoc,rep:128 b/src/exchange/afl-tests/id:000807,src:000002,op:havoc,rep:128
index 94795fd76..94795fd76 100644
--- a/src/mint/afl-tests/id:000807,src:000002,op:havoc,rep:128
+++ b/src/exchange/afl-tests/id:000807,src:000002,op:havoc,rep:128
diff --git a/src/mint/afl-tests/id:000807,src:000003,op:flip1,pos:18,+cov b/src/exchange/afl-tests/id:000807,src:000003,op:flip1,pos:18,+cov
index 2ff4eacac..2ff4eacac 100644
--- a/src/mint/afl-tests/id:000807,src:000003,op:flip1,pos:18,+cov
+++ b/src/exchange/afl-tests/id:000807,src:000003,op:flip1,pos:18,+cov
diff --git a/src/mint/afl-tests/id:000808,src:000002,op:havoc,rep:16 b/src/exchange/afl-tests/id:000808,src:000002,op:havoc,rep:16
index 31162d76e..31162d76e 100644
--- a/src/mint/afl-tests/id:000808,src:000002,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000808,src:000002,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000808,src:000003,op:flip1,pos:27,+cov b/src/exchange/afl-tests/id:000808,src:000003,op:flip1,pos:27,+cov
index f4f567642..f4f567642 100644
--- a/src/mint/afl-tests/id:000808,src:000003,op:flip1,pos:27,+cov
+++ b/src/exchange/afl-tests/id:000808,src:000003,op:flip1,pos:27,+cov
diff --git a/src/mint/afl-tests/id:000809,src:000002,op:havoc,rep:16 b/src/exchange/afl-tests/id:000809,src:000002,op:havoc,rep:16
index 3e4948309..3e4948309 100644
--- a/src/mint/afl-tests/id:000809,src:000002,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000809,src:000002,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000809,src:000003,op:flip1,pos:27,+cov b/src/exchange/afl-tests/id:000809,src:000003,op:flip1,pos:27,+cov
index 1b7007934..1b7007934 100644
--- a/src/mint/afl-tests/id:000809,src:000003,op:flip1,pos:27,+cov
+++ b/src/exchange/afl-tests/id:000809,src:000003,op:flip1,pos:27,+cov
diff --git a/src/mint/afl-tests/id:000810,src:000002,op:havoc,rep:32,+cov b/src/exchange/afl-tests/id:000810,src:000002,op:havoc,rep:32,+cov
index abd2893da..abd2893da 100644
--- a/src/mint/afl-tests/id:000810,src:000002,op:havoc,rep:32,+cov
+++ b/src/exchange/afl-tests/id:000810,src:000002,op:havoc,rep:32,+cov
diff --git a/src/mint/afl-tests/id:000810,src:000003,op:flip1,pos:30,+cov b/src/exchange/afl-tests/id:000810,src:000003,op:flip1,pos:30,+cov
index 6835567b0..6835567b0 100644
--- a/src/mint/afl-tests/id:000810,src:000003,op:flip1,pos:30,+cov
+++ b/src/exchange/afl-tests/id:000810,src:000003,op:flip1,pos:30,+cov
diff --git a/src/mint/afl-tests/id:000811,src:000002,op:havoc,rep:2,+cov b/src/exchange/afl-tests/id:000811,src:000002,op:havoc,rep:2,+cov
index f17a1c6ec..f17a1c6ec 100644
--- a/src/mint/afl-tests/id:000811,src:000002,op:havoc,rep:2,+cov
+++ b/src/exchange/afl-tests/id:000811,src:000002,op:havoc,rep:2,+cov
diff --git a/src/mint/afl-tests/id:000811,src:000003,op:flip1,pos:30,+cov b/src/exchange/afl-tests/id:000811,src:000003,op:flip1,pos:30,+cov
index 5b5904e33..5b5904e33 100644
--- a/src/mint/afl-tests/id:000811,src:000003,op:flip1,pos:30,+cov
+++ b/src/exchange/afl-tests/id:000811,src:000003,op:flip1,pos:30,+cov
diff --git a/src/mint/afl-tests/id:000812,src:000002,op:havoc,rep:4,+cov b/src/exchange/afl-tests/id:000812,src:000002,op:havoc,rep:4,+cov
index af2c17d9b..af2c17d9b 100644
--- a/src/mint/afl-tests/id:000812,src:000002,op:havoc,rep:4,+cov
+++ b/src/exchange/afl-tests/id:000812,src:000002,op:havoc,rep:4,+cov
diff --git a/src/mint/afl-tests/id:000812,src:000003,op:flip1,pos:32,+cov b/src/exchange/afl-tests/id:000812,src:000003,op:flip1,pos:32,+cov
index c38376946..c38376946 100644
--- a/src/mint/afl-tests/id:000812,src:000003,op:flip1,pos:32,+cov
+++ b/src/exchange/afl-tests/id:000812,src:000003,op:flip1,pos:32,+cov
diff --git a/src/mint/afl-tests/id:000813,src:000002,op:havoc,rep:16 b/src/exchange/afl-tests/id:000813,src:000002,op:havoc,rep:16
index 97e61dbc7..97e61dbc7 100644
--- a/src/mint/afl-tests/id:000813,src:000002,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000813,src:000002,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000813,src:000003,op:flip1,pos:34,+cov b/src/exchange/afl-tests/id:000813,src:000003,op:flip1,pos:34,+cov
index 66a4407c9..66a4407c9 100644
--- a/src/mint/afl-tests/id:000813,src:000003,op:flip1,pos:34,+cov
+++ b/src/exchange/afl-tests/id:000813,src:000003,op:flip1,pos:34,+cov
diff --git a/src/mint/afl-tests/id:000814,src:000002,op:havoc,rep:16,+cov b/src/exchange/afl-tests/id:000814,src:000002,op:havoc,rep:16,+cov
index d613c78f6..d613c78f6 100644
--- a/src/mint/afl-tests/id:000814,src:000002,op:havoc,rep:16,+cov
+++ b/src/exchange/afl-tests/id:000814,src:000002,op:havoc,rep:16,+cov
diff --git a/src/mint/afl-tests/id:000814,src:000003,op:flip1,pos:40,+cov b/src/exchange/afl-tests/id:000814,src:000003,op:flip1,pos:40,+cov
index 26c2c08bd..26c2c08bd 100644
--- a/src/mint/afl-tests/id:000814,src:000003,op:flip1,pos:40,+cov
+++ b/src/exchange/afl-tests/id:000814,src:000003,op:flip1,pos:40,+cov
diff --git a/src/mint/afl-tests/id:000815,src:000002,op:havoc,rep:16 b/src/exchange/afl-tests/id:000815,src:000002,op:havoc,rep:16
index ea342a199..ea342a199 100644
--- a/src/mint/afl-tests/id:000815,src:000002,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000815,src:000002,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000815,src:000003,op:flip1,pos:42,+cov b/src/exchange/afl-tests/id:000815,src:000003,op:flip1,pos:42,+cov
index 2f5eac286..2f5eac286 100644
--- a/src/mint/afl-tests/id:000815,src:000003,op:flip1,pos:42,+cov
+++ b/src/exchange/afl-tests/id:000815,src:000003,op:flip1,pos:42,+cov
diff --git a/src/mint/afl-tests/id:000816,src:000002,op:havoc,rep:16 b/src/exchange/afl-tests/id:000816,src:000002,op:havoc,rep:16
index def699478..def699478 100644
--- a/src/mint/afl-tests/id:000816,src:000002,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000816,src:000002,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000816,src:000003,op:flip1,pos:43,+cov b/src/exchange/afl-tests/id:000816,src:000003,op:flip1,pos:43,+cov
index 45f03b258..45f03b258 100644
--- a/src/mint/afl-tests/id:000816,src:000003,op:flip1,pos:43,+cov
+++ b/src/exchange/afl-tests/id:000816,src:000003,op:flip1,pos:43,+cov
diff --git a/src/mint/afl-tests/id:000817,src:000002,op:havoc,rep:16 b/src/exchange/afl-tests/id:000817,src:000002,op:havoc,rep:16
index 968949243..968949243 100644
--- a/src/mint/afl-tests/id:000817,src:000002,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000817,src:000002,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000817,src:000003,op:flip1,pos:48,+cov b/src/exchange/afl-tests/id:000817,src:000003,op:flip1,pos:48,+cov
index 9f7aadd96..9f7aadd96 100644
--- a/src/mint/afl-tests/id:000817,src:000003,op:flip1,pos:48,+cov
+++ b/src/exchange/afl-tests/id:000817,src:000003,op:flip1,pos:48,+cov
diff --git a/src/mint/afl-tests/id:000818,src:000002,op:havoc,rep:16 b/src/exchange/afl-tests/id:000818,src:000002,op:havoc,rep:16
index 41ab7c8bf..41ab7c8bf 100644
--- a/src/mint/afl-tests/id:000818,src:000002,op:havoc,rep:16
+++ b/src/exchange/afl-tests/id:000818,src:000002,op:havoc,rep:16
diff --git a/src/mint/afl-tests/id:000818,src:000003,op:flip1,pos:50,+cov b/src/exchange/afl-tests/id:000818,src:000003,op:flip1,pos:50,+cov
index df50c011d..df50c011d 100644
--- a/src/mint/afl-tests/id:000818,src:000003,op:flip1,pos:50,+cov
+++ b/src/exchange/afl-tests/id:000818,src:000003,op:flip1,pos:50,+cov
diff --git a/src/mint/afl-tests/id:000819,src:000002,op:havoc,rep:16,+cov b/src/exchange/afl-tests/id:000819,src:000002,op:havoc,rep:16,+cov
index 72257d195..72257d195 100644
--- a/src/mint/afl-tests/id:000819,src:000002,op:havoc,rep:16,+cov
+++ b/src/exchange/afl-tests/id:000819,src:000002,op:havoc,rep:16,+cov
diff --git a/src/mint/afl-tests/id:000819,src:000003,op:flip1,pos:61,+cov b/src/exchange/afl-tests/id:000819,src:000003,op:flip1,pos:61,+cov
index df9b8d428..df9b8d428 100644
--- a/src/mint/afl-tests/id:000819,src:000003,op:flip1,pos:61,+cov
+++ b/src/exchange/afl-tests/id:000819,src:000003,op:flip1,pos:61,+cov
diff --git a/src/mint/afl-tests/id:000820,src:000002,op:havoc,rep:2 b/src/exchange/afl-tests/id:000820,src:000002,op:havoc,rep:2
index cff7cdf38..cff7cdf38 100644
--- a/src/mint/afl-tests/id:000820,src:000002,op:havoc,rep:2
+++ b/src/exchange/afl-tests/id:000820,src:000002,op:havoc,rep:2
diff --git a/src/mint/afl-tests/id:000820,src:000003,op:flip1,pos:67,+cov b/src/exchange/afl-tests/id:000820,src:000003,op:flip1,pos:67,+cov
index a8085ea09..a8085ea09 100644
--- a/src/mint/afl-tests/id:000820,src:000003,op:flip1,pos:67,+cov
+++ b/src/exchange/afl-tests/id:000820,src:000003,op:flip1,pos:67,+cov
diff --git a/src/mint/afl-tests/id:000821,src:000003,op:flip1,pos:18,+cov b/src/exchange/afl-tests/id:000821,src:000003,op:flip1,pos:18,+cov
index 2ff4eacac..2ff4eacac 100644
--- a/src/mint/afl-tests/id:000821,src:000003,op:flip1,pos:18,+cov
+++ b/src/exchange/afl-tests/id:000821,src:000003,op:flip1,pos:18,+cov
diff --git a/src/mint/afl-tests/id:000821,src:000003,op:flip1,pos:70 b/src/exchange/afl-tests/id:000821,src:000003,op:flip1,pos:70
index 2344e5a0f..2344e5a0f 100644
--- a/src/mint/afl-tests/id:000821,src:000003,op:flip1,pos:70
+++ b/src/exchange/afl-tests/id:000821,src:000003,op:flip1,pos:70
diff --git a/src/mint/afl-tests/id:000822,src:000003,op:flip1,pos:27,+cov b/src/exchange/afl-tests/id:000822,src:000003,op:flip1,pos:27,+cov
index f4f567642..f4f567642 100644
--- a/src/mint/afl-tests/id:000822,src:000003,op:flip1,pos:27,+cov
+++ b/src/exchange/afl-tests/id:000822,src:000003,op:flip1,pos:27,+cov
diff --git a/src/mint/afl-tests/id:000822,src:000003,op:flip1,pos:73,+cov b/src/exchange/afl-tests/id:000822,src:000003,op:flip1,pos:73,+cov
index 4cee30da6..4cee30da6 100644
--- a/src/mint/afl-tests/id:000822,src:000003,op:flip1,pos:73,+cov
+++ b/src/exchange/afl-tests/id:000822,src:000003,op:flip1,pos:73,+cov
diff --git a/src/mint/afl-tests/id:000823,src:000003,op:flip1,pos:27,+cov b/src/exchange/afl-tests/id:000823,src:000003,op:flip1,pos:27,+cov
index 1b7007934..1b7007934 100644
--- a/src/mint/afl-tests/id:000823,src:000003,op:flip1,pos:27,+cov
+++ b/src/exchange/afl-tests/id:000823,src:000003,op:flip1,pos:27,+cov
diff --git a/src/mint/afl-tests/id:000823,src:000003,op:flip1,pos:77,+cov b/src/exchange/afl-tests/id:000823,src:000003,op:flip1,pos:77,+cov
index bab772e40..bab772e40 100644
--- a/src/mint/afl-tests/id:000823,src:000003,op:flip1,pos:77,+cov
+++ b/src/exchange/afl-tests/id:000823,src:000003,op:flip1,pos:77,+cov
diff --git a/src/mint/afl-tests/id:000824,src:000003,op:flip1,pos:27,+cov b/src/exchange/afl-tests/id:000824,src:000003,op:flip1,pos:27,+cov
index 4546d0f9b..4546d0f9b 100644
--- a/src/mint/afl-tests/id:000824,src:000003,op:flip1,pos:27,+cov
+++ b/src/exchange/afl-tests/id:000824,src:000003,op:flip1,pos:27,+cov
diff --git a/src/mint/afl-tests/id:000824,src:000003,op:flip1,pos:83,+cov b/src/exchange/afl-tests/id:000824,src:000003,op:flip1,pos:83,+cov
index da88eb2b4..da88eb2b4 100644
--- a/src/mint/afl-tests/id:000824,src:000003,op:flip1,pos:83,+cov
+++ b/src/exchange/afl-tests/id:000824,src:000003,op:flip1,pos:83,+cov
diff --git a/src/mint/afl-tests/id:000825,src:000003,op:flip1,pos:28,+cov b/src/exchange/afl-tests/id:000825,src:000003,op:flip1,pos:28,+cov
index 29a72e43d..29a72e43d 100644
--- a/src/mint/afl-tests/id:000825,src:000003,op:flip1,pos:28,+cov
+++ b/src/exchange/afl-tests/id:000825,src:000003,op:flip1,pos:28,+cov
diff --git a/src/mint/afl-tests/id:000825,src:000003,op:flip1,pos:85,+cov b/src/exchange/afl-tests/id:000825,src:000003,op:flip1,pos:85,+cov
index c5151a90f..c5151a90f 100644
--- a/src/mint/afl-tests/id:000825,src:000003,op:flip1,pos:85,+cov
+++ b/src/exchange/afl-tests/id:000825,src:000003,op:flip1,pos:85,+cov
diff --git a/src/mint/afl-tests/id:000826,src:000003,op:flip1,pos:28,+cov b/src/exchange/afl-tests/id:000826,src:000003,op:flip1,pos:28,+cov
index edb70d3c4..edb70d3c4 100644
--- a/src/mint/afl-tests/id:000826,src:000003,op:flip1,pos:28,+cov
+++ b/src/exchange/afl-tests/id:000826,src:000003,op:flip1,pos:28,+cov
diff --git a/src/mint/afl-tests/id:000826,src:000003,op:flip1,pos:85,+cov b/src/exchange/afl-tests/id:000826,src:000003,op:flip1,pos:85,+cov
index f8b7b8bf8..f8b7b8bf8 100644
--- a/src/mint/afl-tests/id:000826,src:000003,op:flip1,pos:85,+cov
+++ b/src/exchange/afl-tests/id:000826,src:000003,op:flip1,pos:85,+cov
diff --git a/src/mint/afl-tests/id:000827,src:000003,op:flip1,pos:29,+cov b/src/exchange/afl-tests/id:000827,src:000003,op:flip1,pos:29,+cov
index 37497a717..37497a717 100644
--- a/src/mint/afl-tests/id:000827,src:000003,op:flip1,pos:29,+cov
+++ b/src/exchange/afl-tests/id:000827,src:000003,op:flip1,pos:29,+cov
diff --git a/src/mint/afl-tests/id:000827,src:000003,op:flip1,pos:88,+cov b/src/exchange/afl-tests/id:000827,src:000003,op:flip1,pos:88,+cov
index 78e0e4beb..78e0e4beb 100644
--- a/src/mint/afl-tests/id:000827,src:000003,op:flip1,pos:88,+cov
+++ b/src/exchange/afl-tests/id:000827,src:000003,op:flip1,pos:88,+cov
diff --git a/src/mint/afl-tests/id:000828,src:000003,op:flip1,pos:29,+cov b/src/exchange/afl-tests/id:000828,src:000003,op:flip1,pos:29,+cov
index 78d7dccb7..78d7dccb7 100644
--- a/src/mint/afl-tests/id:000828,src:000003,op:flip1,pos:29,+cov
+++ b/src/exchange/afl-tests/id:000828,src:000003,op:flip1,pos:29,+cov
diff --git a/src/mint/afl-tests/id:000828,src:000003,op:flip1,pos:89 b/src/exchange/afl-tests/id:000828,src:000003,op:flip1,pos:89
index fd0398da2..fd0398da2 100644
--- a/src/mint/afl-tests/id:000828,src:000003,op:flip1,pos:89
+++ b/src/exchange/afl-tests/id:000828,src:000003,op:flip1,pos:89
diff --git a/src/mint/afl-tests/id:000829,src:000003,op:flip1,pos:29,+cov b/src/exchange/afl-tests/id:000829,src:000003,op:flip1,pos:29,+cov
index 71a014055..71a014055 100644
--- a/src/mint/afl-tests/id:000829,src:000003,op:flip1,pos:29,+cov
+++ b/src/exchange/afl-tests/id:000829,src:000003,op:flip1,pos:29,+cov
diff --git a/src/mint/afl-tests/id:000829,src:000003,op:flip1,pos:91,+cov b/src/exchange/afl-tests/id:000829,src:000003,op:flip1,pos:91,+cov
index fb9bdc46f..fb9bdc46f 100644
--- a/src/mint/afl-tests/id:000829,src:000003,op:flip1,pos:91,+cov
+++ b/src/exchange/afl-tests/id:000829,src:000003,op:flip1,pos:91,+cov
diff --git a/src/mint/afl-tests/id:000830,src:000003,op:flip1,pos:30,+cov b/src/exchange/afl-tests/id:000830,src:000003,op:flip1,pos:30,+cov
index 5b5904e33..5b5904e33 100644
--- a/src/mint/afl-tests/id:000830,src:000003,op:flip1,pos:30,+cov
+++ b/src/exchange/afl-tests/id:000830,src:000003,op:flip1,pos:30,+cov
diff --git a/src/mint/afl-tests/id:000830,src:000003,op:flip1,pos:93,+cov b/src/exchange/afl-tests/id:000830,src:000003,op:flip1,pos:93,+cov
index ef48a505f..ef48a505f 100644
--- a/src/mint/afl-tests/id:000830,src:000003,op:flip1,pos:93,+cov
+++ b/src/exchange/afl-tests/id:000830,src:000003,op:flip1,pos:93,+cov
diff --git a/src/mint/afl-tests/id:000831,src:000003,op:flip1,pos:32,+cov b/src/exchange/afl-tests/id:000831,src:000003,op:flip1,pos:32,+cov
index e6a9d3efb..e6a9d3efb 100644
--- a/src/mint/afl-tests/id:000831,src:000003,op:flip1,pos:32,+cov
+++ b/src/exchange/afl-tests/id:000831,src:000003,op:flip1,pos:32,+cov
diff --git a/src/mint/afl-tests/id:000831,src:000003,op:flip1,pos:93,+cov b/src/exchange/afl-tests/id:000831,src:000003,op:flip1,pos:93,+cov
index 263877b92..263877b92 100644
--- a/src/mint/afl-tests/id:000831,src:000003,op:flip1,pos:93,+cov
+++ b/src/exchange/afl-tests/id:000831,src:000003,op:flip1,pos:93,+cov
diff --git a/src/mint/afl-tests/id:000832,src:000003,op:flip1,pos:34,+cov b/src/exchange/afl-tests/id:000832,src:000003,op:flip1,pos:34,+cov
index de835991f..de835991f 100644
--- a/src/mint/afl-tests/id:000832,src:000003,op:flip1,pos:34,+cov
+++ b/src/exchange/afl-tests/id:000832,src:000003,op:flip1,pos:34,+cov
diff --git a/src/mint/afl-tests/id:000832,src:000003,op:flip1,pos:97,+cov b/src/exchange/afl-tests/id:000832,src:000003,op:flip1,pos:97,+cov
index a5541a08a..a5541a08a 100644
--- a/src/mint/afl-tests/id:000832,src:000003,op:flip1,pos:97,+cov
+++ b/src/exchange/afl-tests/id:000832,src:000003,op:flip1,pos:97,+cov
diff --git a/src/mint/afl-tests/id:000833,src:000003,op:flip1,pos:109,+cov b/src/exchange/afl-tests/id:000833,src:000003,op:flip1,pos:109,+cov
index aa29825c3..aa29825c3 100644
--- a/src/mint/afl-tests/id:000833,src:000003,op:flip1,pos:109,+cov
+++ b/src/exchange/afl-tests/id:000833,src:000003,op:flip1,pos:109,+cov
diff --git a/src/mint/afl-tests/id:000833,src:000003,op:flip1,pos:36,+cov b/src/exchange/afl-tests/id:000833,src:000003,op:flip1,pos:36,+cov
index 075388228..075388228 100644
--- a/src/mint/afl-tests/id:000833,src:000003,op:flip1,pos:36,+cov
+++ b/src/exchange/afl-tests/id:000833,src:000003,op:flip1,pos:36,+cov
diff --git a/src/mint/afl-tests/id:000834,src:000003,op:flip1,pos:111,+cov b/src/exchange/afl-tests/id:000834,src:000003,op:flip1,pos:111,+cov
index bd49be435..bd49be435 100644
--- a/src/mint/afl-tests/id:000834,src:000003,op:flip1,pos:111,+cov
+++ b/src/exchange/afl-tests/id:000834,src:000003,op:flip1,pos:111,+cov
diff --git a/src/mint/afl-tests/id:000834,src:000003,op:flip1,pos:39 b/src/exchange/afl-tests/id:000834,src:000003,op:flip1,pos:39
index 12ae9586e..12ae9586e 100644
--- a/src/mint/afl-tests/id:000834,src:000003,op:flip1,pos:39
+++ b/src/exchange/afl-tests/id:000834,src:000003,op:flip1,pos:39
diff --git a/src/mint/afl-tests/id:000835,src:000003,op:flip1,pos:113,+cov b/src/exchange/afl-tests/id:000835,src:000003,op:flip1,pos:113,+cov
index ea5f45bec..ea5f45bec 100644
--- a/src/mint/afl-tests/id:000835,src:000003,op:flip1,pos:113,+cov
+++ b/src/exchange/afl-tests/id:000835,src:000003,op:flip1,pos:113,+cov
diff --git a/src/mint/afl-tests/id:000835,src:000003,op:flip1,pos:39,+cov b/src/exchange/afl-tests/id:000835,src:000003,op:flip1,pos:39,+cov
index acbaaebf1..acbaaebf1 100644
--- a/src/mint/afl-tests/id:000835,src:000003,op:flip1,pos:39,+cov
+++ b/src/exchange/afl-tests/id:000835,src:000003,op:flip1,pos:39,+cov
diff --git a/src/mint/afl-tests/id:000836,src:000003,op:flip1,pos:114,+cov b/src/exchange/afl-tests/id:000836,src:000003,op:flip1,pos:114,+cov
index 8ae254ae6..8ae254ae6 100644
--- a/src/mint/afl-tests/id:000836,src:000003,op:flip1,pos:114,+cov
+++ b/src/exchange/afl-tests/id:000836,src:000003,op:flip1,pos:114,+cov
diff --git a/src/mint/afl-tests/id:000836,src:000003,op:flip1,pos:40,+cov b/src/exchange/afl-tests/id:000836,src:000003,op:flip1,pos:40,+cov
index d62528541..d62528541 100644
--- a/src/mint/afl-tests/id:000836,src:000003,op:flip1,pos:40,+cov
+++ b/src/exchange/afl-tests/id:000836,src:000003,op:flip1,pos:40,+cov
diff --git a/src/mint/afl-tests/id:000837,src:000003,op:flip1,pos:119,+cov b/src/exchange/afl-tests/id:000837,src:000003,op:flip1,pos:119,+cov
index cec33d9dc..cec33d9dc 100644
--- a/src/mint/afl-tests/id:000837,src:000003,op:flip1,pos:119,+cov
+++ b/src/exchange/afl-tests/id:000837,src:000003,op:flip1,pos:119,+cov
diff --git a/src/mint/afl-tests/id:000837,src:000003,op:flip1,pos:41,+cov b/src/exchange/afl-tests/id:000837,src:000003,op:flip1,pos:41,+cov
index 74d55a8df..74d55a8df 100644
--- a/src/mint/afl-tests/id:000837,src:000003,op:flip1,pos:41,+cov
+++ b/src/exchange/afl-tests/id:000837,src:000003,op:flip1,pos:41,+cov
diff --git a/src/mint/afl-tests/id:000838,src:000003,op:flip1,pos:120,+cov b/src/exchange/afl-tests/id:000838,src:000003,op:flip1,pos:120,+cov
index f14de28c6..f14de28c6 100644
--- a/src/mint/afl-tests/id:000838,src:000003,op:flip1,pos:120,+cov
+++ b/src/exchange/afl-tests/id:000838,src:000003,op:flip1,pos:120,+cov
diff --git a/src/mint/afl-tests/id:000838,src:000003,op:flip1,pos:44,+cov b/src/exchange/afl-tests/id:000838,src:000003,op:flip1,pos:44,+cov
index caa7dcbe4..caa7dcbe4 100644
--- a/src/mint/afl-tests/id:000838,src:000003,op:flip1,pos:44,+cov
+++ b/src/exchange/afl-tests/id:000838,src:000003,op:flip1,pos:44,+cov
diff --git a/src/mint/afl-tests/id:000839,src:000003,op:flip1,pos:128,+cov b/src/exchange/afl-tests/id:000839,src:000003,op:flip1,pos:128,+cov
index ede404b50..ede404b50 100644
--- a/src/mint/afl-tests/id:000839,src:000003,op:flip1,pos:128,+cov
+++ b/src/exchange/afl-tests/id:000839,src:000003,op:flip1,pos:128,+cov
diff --git a/src/mint/afl-tests/id:000839,src:000003,op:flip1,pos:46,+cov b/src/exchange/afl-tests/id:000839,src:000003,op:flip1,pos:46,+cov
index 80ae58cd0..80ae58cd0 100644
--- a/src/mint/afl-tests/id:000839,src:000003,op:flip1,pos:46,+cov
+++ b/src/exchange/afl-tests/id:000839,src:000003,op:flip1,pos:46,+cov
diff --git a/src/mint/afl-tests/id:000840,src:000003,op:flip1,pos:141,+cov b/src/exchange/afl-tests/id:000840,src:000003,op:flip1,pos:141,+cov
index 289bb57d1..289bb57d1 100644
--- a/src/mint/afl-tests/id:000840,src:000003,op:flip1,pos:141,+cov
+++ b/src/exchange/afl-tests/id:000840,src:000003,op:flip1,pos:141,+cov
diff --git a/src/mint/afl-tests/id:000840,src:000003,op:flip1,pos:48,+cov b/src/exchange/afl-tests/id:000840,src:000003,op:flip1,pos:48,+cov
index dd1d1c3aa..dd1d1c3aa 100644
--- a/src/mint/afl-tests/id:000840,src:000003,op:flip1,pos:48,+cov
+++ b/src/exchange/afl-tests/id:000840,src:000003,op:flip1,pos:48,+cov
diff --git a/src/mint/afl-tests/id:000841,src:000003,op:flip1,pos:145,+cov b/src/exchange/afl-tests/id:000841,src:000003,op:flip1,pos:145,+cov
index 1e1baa47f..1e1baa47f 100644
--- a/src/mint/afl-tests/id:000841,src:000003,op:flip1,pos:145,+cov
+++ b/src/exchange/afl-tests/id:000841,src:000003,op:flip1,pos:145,+cov
diff --git a/src/mint/afl-tests/id:000841,src:000003,op:flip1,pos:48,+cov b/src/exchange/afl-tests/id:000841,src:000003,op:flip1,pos:48,+cov
index 9f7aadd96..9f7aadd96 100644
--- a/src/mint/afl-tests/id:000841,src:000003,op:flip1,pos:48,+cov
+++ b/src/exchange/afl-tests/id:000841,src:000003,op:flip1,pos:48,+cov
diff --git a/src/mint/afl-tests/id:000842,src:000003,op:flip1,pos:147,+cov b/src/exchange/afl-tests/id:000842,src:000003,op:flip1,pos:147,+cov
index e0acaa3dc..e0acaa3dc 100644
--- a/src/mint/afl-tests/id:000842,src:000003,op:flip1,pos:147,+cov
+++ b/src/exchange/afl-tests/id:000842,src:000003,op:flip1,pos:147,+cov
diff --git a/src/mint/afl-tests/id:000842,src:000003,op:flip1,pos:51 b/src/exchange/afl-tests/id:000842,src:000003,op:flip1,pos:51
index 77e17fccf..77e17fccf 100644
--- a/src/mint/afl-tests/id:000842,src:000003,op:flip1,pos:51
+++ b/src/exchange/afl-tests/id:000842,src:000003,op:flip1,pos:51
diff --git a/src/mint/afl-tests/id:000843,src:000003,op:flip1,pos:150,+cov b/src/exchange/afl-tests/id:000843,src:000003,op:flip1,pos:150,+cov
index a09cd7099..a09cd7099 100644
--- a/src/mint/afl-tests/id:000843,src:000003,op:flip1,pos:150,+cov
+++ b/src/exchange/afl-tests/id:000843,src:000003,op:flip1,pos:150,+cov
diff --git a/src/mint/afl-tests/id:000843,src:000003,op:flip1,pos:51,+cov b/src/exchange/afl-tests/id:000843,src:000003,op:flip1,pos:51,+cov
index 194370804..194370804 100644
--- a/src/mint/afl-tests/id:000843,src:000003,op:flip1,pos:51,+cov
+++ b/src/exchange/afl-tests/id:000843,src:000003,op:flip1,pos:51,+cov
diff --git a/src/mint/afl-tests/id:000844,src:000003,op:flip1,pos:150,+cov b/src/exchange/afl-tests/id:000844,src:000003,op:flip1,pos:150,+cov
index d0394a40e..d0394a40e 100644
--- a/src/mint/afl-tests/id:000844,src:000003,op:flip1,pos:150,+cov
+++ b/src/exchange/afl-tests/id:000844,src:000003,op:flip1,pos:150,+cov
diff --git a/src/mint/afl-tests/id:000844,src:000003,op:flip1,pos:54,+cov b/src/exchange/afl-tests/id:000844,src:000003,op:flip1,pos:54,+cov
index 13f3df73c..13f3df73c 100644
--- a/src/mint/afl-tests/id:000844,src:000003,op:flip1,pos:54,+cov
+++ b/src/exchange/afl-tests/id:000844,src:000003,op:flip1,pos:54,+cov
diff --git a/src/mint/afl-tests/id:000845,src:000003,op:flip1,pos:58,+cov b/src/exchange/afl-tests/id:000845,src:000003,op:flip1,pos:58,+cov
index e065bd467..e065bd467 100644
--- a/src/mint/afl-tests/id:000845,src:000003,op:flip1,pos:58,+cov
+++ b/src/exchange/afl-tests/id:000845,src:000003,op:flip1,pos:58,+cov
diff --git a/src/mint/afl-tests/id:000845,src:000003,op:flip2,pos:65,+cov b/src/exchange/afl-tests/id:000845,src:000003,op:flip2,pos:65,+cov
index efa43aff6..efa43aff6 100644
--- a/src/mint/afl-tests/id:000845,src:000003,op:flip2,pos:65,+cov
+++ b/src/exchange/afl-tests/id:000845,src:000003,op:flip2,pos:65,+cov
diff --git a/src/mint/afl-tests/id:000846,src:000003,op:flip1,pos:64,+cov b/src/exchange/afl-tests/id:000846,src:000003,op:flip1,pos:64,+cov
index 2e1112a02..2e1112a02 100644
--- a/src/mint/afl-tests/id:000846,src:000003,op:flip1,pos:64,+cov
+++ b/src/exchange/afl-tests/id:000846,src:000003,op:flip1,pos:64,+cov
diff --git a/src/mint/afl-tests/id:000846,src:000003,op:flip2,pos:84,+cov b/src/exchange/afl-tests/id:000846,src:000003,op:flip2,pos:84,+cov
index a7c7ab3cf..a7c7ab3cf 100644
--- a/src/mint/afl-tests/id:000846,src:000003,op:flip2,pos:84,+cov
+++ b/src/exchange/afl-tests/id:000846,src:000003,op:flip2,pos:84,+cov
diff --git a/src/mint/afl-tests/id:000847,src:000003,op:flip1,pos:64,+cov b/src/exchange/afl-tests/id:000847,src:000003,op:flip1,pos:64,+cov
index ed38d0665..ed38d0665 100644
--- a/src/mint/afl-tests/id:000847,src:000003,op:flip1,pos:64,+cov
+++ b/src/exchange/afl-tests/id:000847,src:000003,op:flip1,pos:64,+cov
diff --git a/src/mint/afl-tests/id:000847,src:000003,op:flip2,pos:99,+cov b/src/exchange/afl-tests/id:000847,src:000003,op:flip2,pos:99,+cov
index 878bb6e45..878bb6e45 100644
--- a/src/mint/afl-tests/id:000847,src:000003,op:flip2,pos:99,+cov
+++ b/src/exchange/afl-tests/id:000847,src:000003,op:flip2,pos:99,+cov
diff --git a/src/mint/afl-tests/id:000848,src:000003,op:flip1,pos:66,+cov b/src/exchange/afl-tests/id:000848,src:000003,op:flip1,pos:66,+cov
index f72819f22..f72819f22 100644
--- a/src/mint/afl-tests/id:000848,src:000003,op:flip1,pos:66,+cov
+++ b/src/exchange/afl-tests/id:000848,src:000003,op:flip1,pos:66,+cov
diff --git a/src/mint/afl-tests/id:000848,src:000003,op:flip2,pos:102,+cov b/src/exchange/afl-tests/id:000848,src:000003,op:flip2,pos:102,+cov
index cba7d4e11..cba7d4e11 100644
--- a/src/mint/afl-tests/id:000848,src:000003,op:flip2,pos:102,+cov
+++ b/src/exchange/afl-tests/id:000848,src:000003,op:flip2,pos:102,+cov
diff --git a/src/mint/afl-tests/id:000849,src:000003,op:flip1,pos:67,+cov b/src/exchange/afl-tests/id:000849,src:000003,op:flip1,pos:67,+cov
index 689a00629..689a00629 100644
--- a/src/mint/afl-tests/id:000849,src:000003,op:flip1,pos:67,+cov
+++ b/src/exchange/afl-tests/id:000849,src:000003,op:flip1,pos:67,+cov
diff --git a/src/mint/afl-tests/id:000849,src:000003,op:flip2,pos:115,+cov b/src/exchange/afl-tests/id:000849,src:000003,op:flip2,pos:115,+cov
index 13032d4de..13032d4de 100644
--- a/src/mint/afl-tests/id:000849,src:000003,op:flip2,pos:115,+cov
+++ b/src/exchange/afl-tests/id:000849,src:000003,op:flip2,pos:115,+cov
diff --git a/src/mint/afl-tests/id:000850,src:000003,op:flip1,pos:67,+cov b/src/exchange/afl-tests/id:000850,src:000003,op:flip1,pos:67,+cov
index a8085ea09..a8085ea09 100644
--- a/src/mint/afl-tests/id:000850,src:000003,op:flip1,pos:67,+cov
+++ b/src/exchange/afl-tests/id:000850,src:000003,op:flip1,pos:67,+cov
diff --git a/src/mint/afl-tests/id:000850,src:000003,op:flip2,pos:132,+cov b/src/exchange/afl-tests/id:000850,src:000003,op:flip2,pos:132,+cov
index 1d4863524..1d4863524 100644
--- a/src/mint/afl-tests/id:000850,src:000003,op:flip2,pos:132,+cov
+++ b/src/exchange/afl-tests/id:000850,src:000003,op:flip2,pos:132,+cov
diff --git a/src/mint/afl-tests/id:000851,src:000003,op:flip1,pos:74,+cov b/src/exchange/afl-tests/id:000851,src:000003,op:flip1,pos:74,+cov
index 87f9fdee9..87f9fdee9 100644
--- a/src/mint/afl-tests/id:000851,src:000003,op:flip1,pos:74,+cov
+++ b/src/exchange/afl-tests/id:000851,src:000003,op:flip1,pos:74,+cov
diff --git a/src/mint/afl-tests/id:000851,src:000003,op:flip2,pos:133,+cov b/src/exchange/afl-tests/id:000851,src:000003,op:flip2,pos:133,+cov
index 9344bb2ce..9344bb2ce 100644
--- a/src/mint/afl-tests/id:000851,src:000003,op:flip2,pos:133,+cov
+++ b/src/exchange/afl-tests/id:000851,src:000003,op:flip2,pos:133,+cov
diff --git a/src/mint/afl-tests/id:000852,src:000003,op:flip1,pos:76,+cov b/src/exchange/afl-tests/id:000852,src:000003,op:flip1,pos:76,+cov
index 4144c2035..4144c2035 100644
--- a/src/mint/afl-tests/id:000852,src:000003,op:flip1,pos:76,+cov
+++ b/src/exchange/afl-tests/id:000852,src:000003,op:flip1,pos:76,+cov
diff --git a/src/mint/afl-tests/id:000852,src:000003,op:flip2,pos:139,+cov b/src/exchange/afl-tests/id:000852,src:000003,op:flip2,pos:139,+cov
index 736bf81e2..736bf81e2 100644
--- a/src/mint/afl-tests/id:000852,src:000003,op:flip2,pos:139,+cov
+++ b/src/exchange/afl-tests/id:000852,src:000003,op:flip2,pos:139,+cov
diff --git a/src/mint/afl-tests/id:000853,src:000003,op:flip1,pos:78,+cov b/src/exchange/afl-tests/id:000853,src:000003,op:flip1,pos:78,+cov
index b05e0b3dd..b05e0b3dd 100644
--- a/src/mint/afl-tests/id:000853,src:000003,op:flip1,pos:78,+cov
+++ b/src/exchange/afl-tests/id:000853,src:000003,op:flip1,pos:78,+cov
diff --git a/src/mint/afl-tests/id:000853,src:000003,op:flip2,pos:139,+cov b/src/exchange/afl-tests/id:000853,src:000003,op:flip2,pos:139,+cov
index c5a420b72..c5a420b72 100644
--- a/src/mint/afl-tests/id:000853,src:000003,op:flip2,pos:139,+cov
+++ b/src/exchange/afl-tests/id:000853,src:000003,op:flip2,pos:139,+cov
diff --git a/src/mint/afl-tests/id:000854,src:000003,op:flip2,pos:145,+cov b/src/exchange/afl-tests/id:000854,src:000003,op:flip2,pos:145,+cov
index fb40127e5..fb40127e5 100644
--- a/src/mint/afl-tests/id:000854,src:000003,op:flip2,pos:145,+cov
+++ b/src/exchange/afl-tests/id:000854,src:000003,op:flip2,pos:145,+cov
diff --git a/src/mint/afl-tests/id:000854,src:000003,op:flip2,pos:28,+cov b/src/exchange/afl-tests/id:000854,src:000003,op:flip2,pos:28,+cov
index 28576490a..28576490a 100644
--- a/src/mint/afl-tests/id:000854,src:000003,op:flip2,pos:28,+cov
+++ b/src/exchange/afl-tests/id:000854,src:000003,op:flip2,pos:28,+cov
diff --git a/src/mint/afl-tests/id:000855,src:000003,op:flip2,pos:147,+cov b/src/exchange/afl-tests/id:000855,src:000003,op:flip2,pos:147,+cov
index 21d6cafd7..21d6cafd7 100644
--- a/src/mint/afl-tests/id:000855,src:000003,op:flip2,pos:147,+cov
+++ b/src/exchange/afl-tests/id:000855,src:000003,op:flip2,pos:147,+cov
diff --git a/src/mint/afl-tests/id:000855,src:000003,op:flip2,pos:29,+cov b/src/exchange/afl-tests/id:000855,src:000003,op:flip2,pos:29,+cov
index 05cc1b7e7..05cc1b7e7 100644
--- a/src/mint/afl-tests/id:000855,src:000003,op:flip2,pos:29,+cov
+++ b/src/exchange/afl-tests/id:000855,src:000003,op:flip2,pos:29,+cov
diff --git a/src/mint/afl-tests/id:000856,src:000003,op:flip2,pos:151,+cov b/src/exchange/afl-tests/id:000856,src:000003,op:flip2,pos:151,+cov
index 28eec12cc..28eec12cc 100644
--- a/src/mint/afl-tests/id:000856,src:000003,op:flip2,pos:151,+cov
+++ b/src/exchange/afl-tests/id:000856,src:000003,op:flip2,pos:151,+cov
diff --git a/src/mint/afl-tests/id:000856,src:000003,op:flip2,pos:29,+cov b/src/exchange/afl-tests/id:000856,src:000003,op:flip2,pos:29,+cov
index 8b54d1c33..8b54d1c33 100644
--- a/src/mint/afl-tests/id:000856,src:000003,op:flip2,pos:29,+cov
+++ b/src/exchange/afl-tests/id:000856,src:000003,op:flip2,pos:29,+cov
diff --git a/src/mint/afl-tests/id:000857,src:000003,op:flip2,pos:30,+cov b/src/exchange/afl-tests/id:000857,src:000003,op:flip2,pos:30,+cov
index df87342ba..df87342ba 100644
--- a/src/mint/afl-tests/id:000857,src:000003,op:flip2,pos:30,+cov
+++ b/src/exchange/afl-tests/id:000857,src:000003,op:flip2,pos:30,+cov
diff --git a/src/mint/afl-tests/id:000857,src:000003,op:flip4,pos:110,+cov b/src/exchange/afl-tests/id:000857,src:000003,op:flip4,pos:110,+cov
index c3943cede..c3943cede 100644
--- a/src/mint/afl-tests/id:000857,src:000003,op:flip4,pos:110,+cov
+++ b/src/exchange/afl-tests/id:000857,src:000003,op:flip4,pos:110,+cov
diff --git a/src/mint/afl-tests/id:000858,src:000003,op:flip2,pos:35 b/src/exchange/afl-tests/id:000858,src:000003,op:flip2,pos:35
index 10bba0888..10bba0888 100644
--- a/src/mint/afl-tests/id:000858,src:000003,op:flip2,pos:35
+++ b/src/exchange/afl-tests/id:000858,src:000003,op:flip2,pos:35
diff --git a/src/mint/afl-tests/id:000858,src:000003,op:flip4,pos:120,+cov b/src/exchange/afl-tests/id:000858,src:000003,op:flip4,pos:120,+cov
index 0d1cd2f63..0d1cd2f63 100644
--- a/src/mint/afl-tests/id:000858,src:000003,op:flip4,pos:120,+cov
+++ b/src/exchange/afl-tests/id:000858,src:000003,op:flip4,pos:120,+cov
diff --git a/src/mint/afl-tests/id:000859,src:000003,op:flip2,pos:37,+cov b/src/exchange/afl-tests/id:000859,src:000003,op:flip2,pos:37,+cov
index cae730c0b..cae730c0b 100644
--- a/src/mint/afl-tests/id:000859,src:000003,op:flip2,pos:37,+cov
+++ b/src/exchange/afl-tests/id:000859,src:000003,op:flip2,pos:37,+cov
diff --git a/src/mint/afl-tests/id:000859,src:000003,op:flip4,pos:123,+cov b/src/exchange/afl-tests/id:000859,src:000003,op:flip4,pos:123,+cov
index 4ab0fb575..4ab0fb575 100644
--- a/src/mint/afl-tests/id:000859,src:000003,op:flip4,pos:123,+cov
+++ b/src/exchange/afl-tests/id:000859,src:000003,op:flip4,pos:123,+cov
diff --git a/src/mint/afl-tests/id:000860,src:000003,op:flip2,pos:41,+cov b/src/exchange/afl-tests/id:000860,src:000003,op:flip2,pos:41,+cov
index 8588854d5..8588854d5 100644
--- a/src/mint/afl-tests/id:000860,src:000003,op:flip2,pos:41,+cov
+++ b/src/exchange/afl-tests/id:000860,src:000003,op:flip2,pos:41,+cov
diff --git a/src/mint/afl-tests/id:000860,src:000003,op:flip4,pos:124,+cov b/src/exchange/afl-tests/id:000860,src:000003,op:flip4,pos:124,+cov
index 4cb051502..4cb051502 100644
--- a/src/mint/afl-tests/id:000860,src:000003,op:flip4,pos:124,+cov
+++ b/src/exchange/afl-tests/id:000860,src:000003,op:flip4,pos:124,+cov
diff --git a/src/mint/afl-tests/id:000861,src:000003,op:flip2,pos:42,+cov b/src/exchange/afl-tests/id:000861,src:000003,op:flip2,pos:42,+cov
index 945d559d0..945d559d0 100644
--- a/src/mint/afl-tests/id:000861,src:000003,op:flip2,pos:42,+cov
+++ b/src/exchange/afl-tests/id:000861,src:000003,op:flip2,pos:42,+cov
diff --git a/src/mint/afl-tests/id:000861,src:000003,op:flip4,pos:124,+cov b/src/exchange/afl-tests/id:000861,src:000003,op:flip4,pos:124,+cov
index d1f8846ed..d1f8846ed 100644
--- a/src/mint/afl-tests/id:000861,src:000003,op:flip4,pos:124,+cov
+++ b/src/exchange/afl-tests/id:000861,src:000003,op:flip4,pos:124,+cov
diff --git a/src/mint/afl-tests/id:000862,src:000003,op:flip2,pos:43,+cov b/src/exchange/afl-tests/id:000862,src:000003,op:flip2,pos:43,+cov
index b9359c59e..b9359c59e 100644
--- a/src/mint/afl-tests/id:000862,src:000003,op:flip2,pos:43,+cov
+++ b/src/exchange/afl-tests/id:000862,src:000003,op:flip2,pos:43,+cov
diff --git a/src/mint/afl-tests/id:000862,src:000003,op:flip4,pos:124,+cov b/src/exchange/afl-tests/id:000862,src:000003,op:flip4,pos:124,+cov
index 9bbc0909a..9bbc0909a 100644
--- a/src/mint/afl-tests/id:000862,src:000003,op:flip4,pos:124,+cov
+++ b/src/exchange/afl-tests/id:000862,src:000003,op:flip4,pos:124,+cov
diff --git a/src/mint/afl-tests/id:000863,src:000003,op:flip2,pos:43,+cov b/src/exchange/afl-tests/id:000863,src:000003,op:flip2,pos:43,+cov
index af374a964..af374a964 100644
--- a/src/mint/afl-tests/id:000863,src:000003,op:flip2,pos:43,+cov
+++ b/src/exchange/afl-tests/id:000863,src:000003,op:flip2,pos:43,+cov
diff --git a/src/mint/afl-tests/id:000863,src:000003,op:flip4,pos:129,+cov b/src/exchange/afl-tests/id:000863,src:000003,op:flip4,pos:129,+cov
index db5a8872f..db5a8872f 100644
--- a/src/mint/afl-tests/id:000863,src:000003,op:flip4,pos:129,+cov
+++ b/src/exchange/afl-tests/id:000863,src:000003,op:flip4,pos:129,+cov
diff --git a/src/mint/afl-tests/id:000864,src:000003,op:flip2,pos:43 b/src/exchange/afl-tests/id:000864,src:000003,op:flip2,pos:43
index aa6161730..aa6161730 100644
--- a/src/mint/afl-tests/id:000864,src:000003,op:flip2,pos:43
+++ b/src/exchange/afl-tests/id:000864,src:000003,op:flip2,pos:43
diff --git a/src/mint/afl-tests/id:000864,src:000003,op:flip4,pos:138,+cov b/src/exchange/afl-tests/id:000864,src:000003,op:flip4,pos:138,+cov
index bc062ea11..bc062ea11 100644
--- a/src/mint/afl-tests/id:000864,src:000003,op:flip4,pos:138,+cov
+++ b/src/exchange/afl-tests/id:000864,src:000003,op:flip4,pos:138,+cov
diff --git a/src/mint/afl-tests/id:000865,src:000003,op:flip2,pos:45,+cov b/src/exchange/afl-tests/id:000865,src:000003,op:flip2,pos:45,+cov
index 0e80c565f..0e80c565f 100644
--- a/src/mint/afl-tests/id:000865,src:000003,op:flip2,pos:45,+cov
+++ b/src/exchange/afl-tests/id:000865,src:000003,op:flip2,pos:45,+cov
diff --git a/src/mint/afl-tests/id:000865,src:000003,op:flip8,pos:118,+cov b/src/exchange/afl-tests/id:000865,src:000003,op:flip8,pos:118,+cov
index 7aeee844a..7aeee844a 100644
--- a/src/mint/afl-tests/id:000865,src:000003,op:flip8,pos:118,+cov
+++ b/src/exchange/afl-tests/id:000865,src:000003,op:flip8,pos:118,+cov
diff --git a/src/mint/afl-tests/id:000866,src:000003,op:flip2,pos:47,+cov b/src/exchange/afl-tests/id:000866,src:000003,op:flip2,pos:47,+cov
index 3f3e88686..3f3e88686 100644
--- a/src/mint/afl-tests/id:000866,src:000003,op:flip2,pos:47,+cov
+++ b/src/exchange/afl-tests/id:000866,src:000003,op:flip2,pos:47,+cov
diff --git a/src/mint/afl-tests/id:000866,src:000003,op:flip8,pos:129,+cov b/src/exchange/afl-tests/id:000866,src:000003,op:flip8,pos:129,+cov
index e86650f62..e86650f62 100644
--- a/src/mint/afl-tests/id:000866,src:000003,op:flip8,pos:129,+cov
+++ b/src/exchange/afl-tests/id:000866,src:000003,op:flip8,pos:129,+cov
diff --git a/src/mint/afl-tests/id:000867,src:000003,op:flip2,pos:49,+cov b/src/exchange/afl-tests/id:000867,src:000003,op:flip2,pos:49,+cov
index 76ef26a57..76ef26a57 100644
--- a/src/mint/afl-tests/id:000867,src:000003,op:flip2,pos:49,+cov
+++ b/src/exchange/afl-tests/id:000867,src:000003,op:flip2,pos:49,+cov
diff --git a/src/mint/afl-tests/id:000867,src:000003,op:flip8,pos:130,+cov b/src/exchange/afl-tests/id:000867,src:000003,op:flip8,pos:130,+cov
index d8f4bb5f2..d8f4bb5f2 100644
--- a/src/mint/afl-tests/id:000867,src:000003,op:flip8,pos:130,+cov
+++ b/src/exchange/afl-tests/id:000867,src:000003,op:flip8,pos:130,+cov
diff --git a/src/mint/afl-tests/id:000868,src:000003,op:flip2,pos:54,+cov b/src/exchange/afl-tests/id:000868,src:000003,op:flip2,pos:54,+cov
index 035f944eb..035f944eb 100644
--- a/src/mint/afl-tests/id:000868,src:000003,op:flip2,pos:54,+cov
+++ b/src/exchange/afl-tests/id:000868,src:000003,op:flip2,pos:54,+cov
diff --git a/src/mint/afl-tests/id:000868,src:000003,op:flip8,pos:132,+cov b/src/exchange/afl-tests/id:000868,src:000003,op:flip8,pos:132,+cov
index 756516ccf..756516ccf 100644
--- a/src/mint/afl-tests/id:000868,src:000003,op:flip8,pos:132,+cov
+++ b/src/exchange/afl-tests/id:000868,src:000003,op:flip8,pos:132,+cov
diff --git a/src/mint/afl-tests/id:000869,src:000003,op:arith8,pos:17,val:-31 b/src/exchange/afl-tests/id:000869,src:000003,op:arith8,pos:17,val:-31
index db4663753..db4663753 100644
--- a/src/mint/afl-tests/id:000869,src:000003,op:arith8,pos:17,val:-31
+++ b/src/exchange/afl-tests/id:000869,src:000003,op:arith8,pos:17,val:-31
diff --git a/src/mint/afl-tests/id:000869,src:000003,op:flip2,pos:62,+cov b/src/exchange/afl-tests/id:000869,src:000003,op:flip2,pos:62,+cov
index d3afd0c3e..d3afd0c3e 100644
--- a/src/mint/afl-tests/id:000869,src:000003,op:flip2,pos:62,+cov
+++ b/src/exchange/afl-tests/id:000869,src:000003,op:flip2,pos:62,+cov
diff --git a/src/mint/afl-tests/id:000870,src:000003,op:arith8,pos:27,val:+26,+cov b/src/exchange/afl-tests/id:000870,src:000003,op:arith8,pos:27,val:+26,+cov
index 711cace75..711cace75 100644
--- a/src/mint/afl-tests/id:000870,src:000003,op:arith8,pos:27,val:+26,+cov
+++ b/src/exchange/afl-tests/id:000870,src:000003,op:arith8,pos:27,val:+26,+cov
diff --git a/src/mint/afl-tests/id:000870,src:000003,op:flip2,pos:63,+cov b/src/exchange/afl-tests/id:000870,src:000003,op:flip2,pos:63,+cov
index 5de810226..5de810226 100644
--- a/src/mint/afl-tests/id:000870,src:000003,op:flip2,pos:63,+cov
+++ b/src/exchange/afl-tests/id:000870,src:000003,op:flip2,pos:63,+cov
diff --git a/src/mint/afl-tests/id:000871,src:000003,op:arith8,pos:29,val:+11,+cov b/src/exchange/afl-tests/id:000871,src:000003,op:arith8,pos:29,val:+11,+cov
index 14e724e00..14e724e00 100644
--- a/src/mint/afl-tests/id:000871,src:000003,op:arith8,pos:29,val:+11,+cov
+++ b/src/exchange/afl-tests/id:000871,src:000003,op:arith8,pos:29,val:+11,+cov
diff --git a/src/mint/afl-tests/id:000871,src:000003,op:flip2,pos:68,+cov b/src/exchange/afl-tests/id:000871,src:000003,op:flip2,pos:68,+cov
index dd79ab79e..dd79ab79e 100644
--- a/src/mint/afl-tests/id:000871,src:000003,op:flip2,pos:68,+cov
+++ b/src/exchange/afl-tests/id:000871,src:000003,op:flip2,pos:68,+cov
diff --git a/src/mint/afl-tests/id:000872,src:000003,op:arith8,pos:29,val:+33 b/src/exchange/afl-tests/id:000872,src:000003,op:arith8,pos:29,val:+33
index b17ced580..b17ced580 100644
--- a/src/mint/afl-tests/id:000872,src:000003,op:arith8,pos:29,val:+33
+++ b/src/exchange/afl-tests/id:000872,src:000003,op:arith8,pos:29,val:+33
diff --git a/src/mint/afl-tests/id:000873,src:000003,op:arith8,pos:30,val:-14,+cov b/src/exchange/afl-tests/id:000873,src:000003,op:arith8,pos:30,val:-14,+cov
index 84c179051..84c179051 100644
--- a/src/mint/afl-tests/id:000873,src:000003,op:arith8,pos:30,val:-14,+cov
+++ b/src/exchange/afl-tests/id:000873,src:000003,op:arith8,pos:30,val:-14,+cov
diff --git a/src/mint/afl-tests/id:000874,src:000003,op:arith8,pos:30,val:+28,+cov b/src/exchange/afl-tests/id:000874,src:000003,op:arith8,pos:30,val:+28,+cov
index d46b6c12e..d46b6c12e 100644
--- a/src/mint/afl-tests/id:000874,src:000003,op:arith8,pos:30,val:+28,+cov
+++ b/src/exchange/afl-tests/id:000874,src:000003,op:arith8,pos:30,val:+28,+cov
diff --git a/src/mint/afl-tests/id:000875,src:000003,op:arith8,pos:35,val:+18,+cov b/src/exchange/afl-tests/id:000875,src:000003,op:arith8,pos:35,val:+18,+cov
index 533b19061..533b19061 100644
--- a/src/mint/afl-tests/id:000875,src:000003,op:arith8,pos:35,val:+18,+cov
+++ b/src/exchange/afl-tests/id:000875,src:000003,op:arith8,pos:35,val:+18,+cov
diff --git a/src/mint/afl-tests/id:000876,src:000003,op:arith8,pos:35,val:+26,+cov b/src/exchange/afl-tests/id:000876,src:000003,op:arith8,pos:35,val:+26,+cov
index 53519e2c7..53519e2c7 100644
--- a/src/mint/afl-tests/id:000876,src:000003,op:arith8,pos:35,val:+26,+cov
+++ b/src/exchange/afl-tests/id:000876,src:000003,op:arith8,pos:35,val:+26,+cov
diff --git a/src/mint/afl-tests/id:000877,src:000003,op:arith8,pos:36,val:-23,+cov b/src/exchange/afl-tests/id:000877,src:000003,op:arith8,pos:36,val:-23,+cov
index 7f4877bd1..7f4877bd1 100644
--- a/src/mint/afl-tests/id:000877,src:000003,op:arith8,pos:36,val:-23,+cov
+++ b/src/exchange/afl-tests/id:000877,src:000003,op:arith8,pos:36,val:-23,+cov
diff --git a/src/mint/afl-tests/id:000878,src:000003,op:arith8,pos:37,val:+20,+cov b/src/exchange/afl-tests/id:000878,src:000003,op:arith8,pos:37,val:+20,+cov
index 806271714..806271714 100644
--- a/src/mint/afl-tests/id:000878,src:000003,op:arith8,pos:37,val:+20,+cov
+++ b/src/exchange/afl-tests/id:000878,src:000003,op:arith8,pos:37,val:+20,+cov
diff --git a/src/mint/afl-tests/id:000879,src:000003,op:arith8,pos:37,val:-27,+cov b/src/exchange/afl-tests/id:000879,src:000003,op:arith8,pos:37,val:-27,+cov
index 365152f67..365152f67 100644
--- a/src/mint/afl-tests/id:000879,src:000003,op:arith8,pos:37,val:-27,+cov
+++ b/src/exchange/afl-tests/id:000879,src:000003,op:arith8,pos:37,val:-27,+cov
diff --git a/src/mint/afl-tests/id:000880,src:000003,op:arith8,pos:42,val:+31,+cov b/src/exchange/afl-tests/id:000880,src:000003,op:arith8,pos:42,val:+31,+cov
index d0fb09b9a..d0fb09b9a 100644
--- a/src/mint/afl-tests/id:000880,src:000003,op:arith8,pos:42,val:+31,+cov
+++ b/src/exchange/afl-tests/id:000880,src:000003,op:arith8,pos:42,val:+31,+cov
diff --git a/src/mint/afl-tests/id:000881,src:000003,op:arith8,pos:46,val:+26,+cov b/src/exchange/afl-tests/id:000881,src:000003,op:arith8,pos:46,val:+26,+cov
index e5f08ec8d..e5f08ec8d 100644
--- a/src/mint/afl-tests/id:000881,src:000003,op:arith8,pos:46,val:+26,+cov
+++ b/src/exchange/afl-tests/id:000881,src:000003,op:arith8,pos:46,val:+26,+cov
diff --git a/src/mint/afl-tests/id:000882,src:000003,op:arith8,pos:47,val:-35,+cov b/src/exchange/afl-tests/id:000882,src:000003,op:arith8,pos:47,val:-35,+cov
index cc7f2172e..cc7f2172e 100644
--- a/src/mint/afl-tests/id:000882,src:000003,op:arith8,pos:47,val:-35,+cov
+++ b/src/exchange/afl-tests/id:000882,src:000003,op:arith8,pos:47,val:-35,+cov
diff --git a/src/mint/afl-tests/id:000883,src:000003,op:arith8,pos:49,val:-2,+cov b/src/exchange/afl-tests/id:000883,src:000003,op:arith8,pos:49,val:-2,+cov
index 489a86bbb..489a86bbb 100644
--- a/src/mint/afl-tests/id:000883,src:000003,op:arith8,pos:49,val:-2,+cov
+++ b/src/exchange/afl-tests/id:000883,src:000003,op:arith8,pos:49,val:-2,+cov
diff --git a/src/mint/afl-tests/id:000884,src:000003,op:arith8,pos:51,val:+15,+cov b/src/exchange/afl-tests/id:000884,src:000003,op:arith8,pos:51,val:+15,+cov
index 2a4f9a6de..2a4f9a6de 100644
--- a/src/mint/afl-tests/id:000884,src:000003,op:arith8,pos:51,val:+15,+cov
+++ b/src/exchange/afl-tests/id:000884,src:000003,op:arith8,pos:51,val:+15,+cov
diff --git a/src/mint/afl-tests/id:000885,src:000003,op:arith8,pos:52,val:+11,+cov b/src/exchange/afl-tests/id:000885,src:000003,op:arith8,pos:52,val:+11,+cov
index 8b0866a62..8b0866a62 100644
--- a/src/mint/afl-tests/id:000885,src:000003,op:arith8,pos:52,val:+11,+cov
+++ b/src/exchange/afl-tests/id:000885,src:000003,op:arith8,pos:52,val:+11,+cov
diff --git a/src/mint/afl-tests/id:000886,src:000003,op:arith8,pos:61,val:+34 b/src/exchange/afl-tests/id:000886,src:000003,op:arith8,pos:61,val:+34
index b2d267df5..b2d267df5 100644
--- a/src/mint/afl-tests/id:000886,src:000003,op:arith8,pos:61,val:+34
+++ b/src/exchange/afl-tests/id:000886,src:000003,op:arith8,pos:61,val:+34
diff --git a/src/mint/afl-tests/id:000887,src:000003,op:arith8,pos:62,val:-18,+cov b/src/exchange/afl-tests/id:000887,src:000003,op:arith8,pos:62,val:-18,+cov
index 3388fe404..3388fe404 100644
--- a/src/mint/afl-tests/id:000887,src:000003,op:arith8,pos:62,val:-18,+cov
+++ b/src/exchange/afl-tests/id:000887,src:000003,op:arith8,pos:62,val:-18,+cov
diff --git a/src/mint/afl-tests/id:000888,src:000003,op:arith8,pos:68,val:+21,+cov b/src/exchange/afl-tests/id:000888,src:000003,op:arith8,pos:68,val:+21,+cov
index 7b33d73fd..7b33d73fd 100644
--- a/src/mint/afl-tests/id:000888,src:000003,op:arith8,pos:68,val:+21,+cov
+++ b/src/exchange/afl-tests/id:000888,src:000003,op:arith8,pos:68,val:+21,+cov
diff --git a/src/mint/afl-tests/id:000889,src:000003,op:arith8,pos:71,val:-12,+cov b/src/exchange/afl-tests/id:000889,src:000003,op:arith8,pos:71,val:-12,+cov
index e9c662569..e9c662569 100644
--- a/src/mint/afl-tests/id:000889,src:000003,op:arith8,pos:71,val:-12,+cov
+++ b/src/exchange/afl-tests/id:000889,src:000003,op:arith8,pos:71,val:-12,+cov
diff --git a/src/mint/afl-tests/id:000890,src:000003,op:arith8,pos:75,val:+15,+cov b/src/exchange/afl-tests/id:000890,src:000003,op:arith8,pos:75,val:+15,+cov
index 375a480fc..375a480fc 100644
--- a/src/mint/afl-tests/id:000890,src:000003,op:arith8,pos:75,val:+15,+cov
+++ b/src/exchange/afl-tests/id:000890,src:000003,op:arith8,pos:75,val:+15,+cov
diff --git a/src/mint/afl-tests/id:000891,src:000003,op:arith8,pos:77,val:+13,+cov b/src/exchange/afl-tests/id:000891,src:000003,op:arith8,pos:77,val:+13,+cov
index b5ec50f77..b5ec50f77 100644
--- a/src/mint/afl-tests/id:000891,src:000003,op:arith8,pos:77,val:+13,+cov
+++ b/src/exchange/afl-tests/id:000891,src:000003,op:arith8,pos:77,val:+13,+cov
diff --git a/src/mint/afl-tests/id:000892,src:000003,op:arith8,pos:80,val:-17,+cov b/src/exchange/afl-tests/id:000892,src:000003,op:arith8,pos:80,val:-17,+cov
index ba4342848..ba4342848 100644
--- a/src/mint/afl-tests/id:000892,src:000003,op:arith8,pos:80,val:-17,+cov
+++ b/src/exchange/afl-tests/id:000892,src:000003,op:arith8,pos:80,val:-17,+cov
diff --git a/src/mint/afl-tests/id:000893,src:000003,op:arith8,pos:80,val:-23,+cov b/src/exchange/afl-tests/id:000893,src:000003,op:arith8,pos:80,val:-23,+cov
index d3873f902..d3873f902 100644
--- a/src/mint/afl-tests/id:000893,src:000003,op:arith8,pos:80,val:-23,+cov
+++ b/src/exchange/afl-tests/id:000893,src:000003,op:arith8,pos:80,val:-23,+cov
diff --git a/src/mint/afl-tests/id:000894,src:000003,op:arith8,pos:81,val:-9,+cov b/src/exchange/afl-tests/id:000894,src:000003,op:arith8,pos:81,val:-9,+cov
index 983f70606..983f70606 100644
--- a/src/mint/afl-tests/id:000894,src:000003,op:arith8,pos:81,val:-9,+cov
+++ b/src/exchange/afl-tests/id:000894,src:000003,op:arith8,pos:81,val:-9,+cov
diff --git a/src/mint/afl-tests/id:000895,src:000003,op:arith8,pos:83,val:-18,+cov b/src/exchange/afl-tests/id:000895,src:000003,op:arith8,pos:83,val:-18,+cov
index 8f7f08ae9..8f7f08ae9 100644
--- a/src/mint/afl-tests/id:000895,src:000003,op:arith8,pos:83,val:-18,+cov
+++ b/src/exchange/afl-tests/id:000895,src:000003,op:arith8,pos:83,val:-18,+cov
diff --git a/src/mint/afl-tests/id:000896,src:000003,op:arith8,pos:83,val:+25,+cov b/src/exchange/afl-tests/id:000896,src:000003,op:arith8,pos:83,val:+25,+cov
index b1d9e26b5..b1d9e26b5 100644
--- a/src/mint/afl-tests/id:000896,src:000003,op:arith8,pos:83,val:+25,+cov
+++ b/src/exchange/afl-tests/id:000896,src:000003,op:arith8,pos:83,val:+25,+cov
diff --git a/src/mint/afl-tests/id:000897,src:000003,op:arith8,pos:84,val:-18,+cov b/src/exchange/afl-tests/id:000897,src:000003,op:arith8,pos:84,val:-18,+cov
index a29110bb6..a29110bb6 100644
--- a/src/mint/afl-tests/id:000897,src:000003,op:arith8,pos:84,val:-18,+cov
+++ b/src/exchange/afl-tests/id:000897,src:000003,op:arith8,pos:84,val:-18,+cov
diff --git a/src/mint/afl-tests/id:000898,src:000003,op:arith8,pos:86,val:+11,+cov b/src/exchange/afl-tests/id:000898,src:000003,op:arith8,pos:86,val:+11,+cov
index 6dcd140db..6dcd140db 100644
--- a/src/mint/afl-tests/id:000898,src:000003,op:arith8,pos:86,val:+11,+cov
+++ b/src/exchange/afl-tests/id:000898,src:000003,op:arith8,pos:86,val:+11,+cov
diff --git a/src/mint/afl-tests/id:000899,src:000003,op:arith8,pos:86,val:+27,+cov b/src/exchange/afl-tests/id:000899,src:000003,op:arith8,pos:86,val:+27,+cov
index 8089c95f5..8089c95f5 100644
--- a/src/mint/afl-tests/id:000899,src:000003,op:arith8,pos:86,val:+27,+cov
+++ b/src/exchange/afl-tests/id:000899,src:000003,op:arith8,pos:86,val:+27,+cov
diff --git a/src/mint/afl-tests/id:000900,src:000003,op:arith8,pos:87,val:-23,+cov b/src/exchange/afl-tests/id:000900,src:000003,op:arith8,pos:87,val:-23,+cov
index 291828478..291828478 100644
--- a/src/mint/afl-tests/id:000900,src:000003,op:arith8,pos:87,val:-23,+cov
+++ b/src/exchange/afl-tests/id:000900,src:000003,op:arith8,pos:87,val:-23,+cov
diff --git a/src/mint/afl-tests/id:000901,src:000003,op:arith8,pos:88,val:+35,+cov b/src/exchange/afl-tests/id:000901,src:000003,op:arith8,pos:88,val:+35,+cov
index 40338ae4d..40338ae4d 100644
--- a/src/mint/afl-tests/id:000901,src:000003,op:arith8,pos:88,val:+35,+cov
+++ b/src/exchange/afl-tests/id:000901,src:000003,op:arith8,pos:88,val:+35,+cov
diff --git a/src/mint/afl-tests/id:000902,src:000003,op:arith8,pos:89,val:-14,+cov b/src/exchange/afl-tests/id:000902,src:000003,op:arith8,pos:89,val:-14,+cov
index 78a5ccbed..78a5ccbed 100644
--- a/src/mint/afl-tests/id:000902,src:000003,op:arith8,pos:89,val:-14,+cov
+++ b/src/exchange/afl-tests/id:000902,src:000003,op:arith8,pos:89,val:-14,+cov
diff --git a/src/mint/afl-tests/id:000903,src:000003,op:arith8,pos:89,val:-33,+cov b/src/exchange/afl-tests/id:000903,src:000003,op:arith8,pos:89,val:-33,+cov
index af5afac60..af5afac60 100644
--- a/src/mint/afl-tests/id:000903,src:000003,op:arith8,pos:89,val:-33,+cov
+++ b/src/exchange/afl-tests/id:000903,src:000003,op:arith8,pos:89,val:-33,+cov
diff --git a/src/mint/afl-tests/id:000904,src:000003,op:arith8,pos:90,val:-25,+cov b/src/exchange/afl-tests/id:000904,src:000003,op:arith8,pos:90,val:-25,+cov
index 12b346043..12b346043 100644
--- a/src/mint/afl-tests/id:000904,src:000003,op:arith8,pos:90,val:-25,+cov
+++ b/src/exchange/afl-tests/id:000904,src:000003,op:arith8,pos:90,val:-25,+cov
diff --git a/src/mint/afl-tests/id:000905,src:000003,op:arith8,pos:92,val:-25,+cov b/src/exchange/afl-tests/id:000905,src:000003,op:arith8,pos:92,val:-25,+cov
index 6e4c64fbd..6e4c64fbd 100644
--- a/src/mint/afl-tests/id:000905,src:000003,op:arith8,pos:92,val:-25,+cov
+++ b/src/exchange/afl-tests/id:000905,src:000003,op:arith8,pos:92,val:-25,+cov
diff --git a/src/mint/afl-tests/id:000906,src:000003,op:arith8,pos:96,val:+10,+cov b/src/exchange/afl-tests/id:000906,src:000003,op:arith8,pos:96,val:+10,+cov
index 0b773a1ca..0b773a1ca 100644
--- a/src/mint/afl-tests/id:000906,src:000003,op:arith8,pos:96,val:+10,+cov
+++ b/src/exchange/afl-tests/id:000906,src:000003,op:arith8,pos:96,val:+10,+cov
diff --git a/src/mint/afl-tests/id:000907,src:000003,op:arith8,pos:96,val:-19,+cov b/src/exchange/afl-tests/id:000907,src:000003,op:arith8,pos:96,val:-19,+cov
index aab442117..aab442117 100644
--- a/src/mint/afl-tests/id:000907,src:000003,op:arith8,pos:96,val:-19,+cov
+++ b/src/exchange/afl-tests/id:000907,src:000003,op:arith8,pos:96,val:-19,+cov
diff --git a/src/mint/afl-tests/id:000908,src:000003,op:arith8,pos:96,val:+25,+cov b/src/exchange/afl-tests/id:000908,src:000003,op:arith8,pos:96,val:+25,+cov
index c32634bb2..c32634bb2 100644
--- a/src/mint/afl-tests/id:000908,src:000003,op:arith8,pos:96,val:+25,+cov
+++ b/src/exchange/afl-tests/id:000908,src:000003,op:arith8,pos:96,val:+25,+cov
diff --git a/src/mint/afl-tests/id:000909,src:000003,op:arith8,pos:97,val:-17,+cov b/src/exchange/afl-tests/id:000909,src:000003,op:arith8,pos:97,val:-17,+cov
index bc394e407..bc394e407 100644
--- a/src/mint/afl-tests/id:000909,src:000003,op:arith8,pos:97,val:-17,+cov
+++ b/src/exchange/afl-tests/id:000909,src:000003,op:arith8,pos:97,val:-17,+cov
diff --git a/src/mint/afl-tests/id:000910,src:000003,op:arith8,pos:100,val:-15,+cov b/src/exchange/afl-tests/id:000910,src:000003,op:arith8,pos:100,val:-15,+cov
index 28d2cb420..28d2cb420 100644
--- a/src/mint/afl-tests/id:000910,src:000003,op:arith8,pos:100,val:-15,+cov
+++ b/src/exchange/afl-tests/id:000910,src:000003,op:arith8,pos:100,val:-15,+cov
diff --git a/src/mint/afl-tests/id:000911,src:000003,op:arith8,pos:102,val:-27,+cov b/src/exchange/afl-tests/id:000911,src:000003,op:arith8,pos:102,val:-27,+cov
index c32efa665..c32efa665 100644
--- a/src/mint/afl-tests/id:000911,src:000003,op:arith8,pos:102,val:-27,+cov
+++ b/src/exchange/afl-tests/id:000911,src:000003,op:arith8,pos:102,val:-27,+cov
diff --git a/src/mint/afl-tests/id:000912,src:000003,op:arith8,pos:102,val:-34,+cov b/src/exchange/afl-tests/id:000912,src:000003,op:arith8,pos:102,val:-34,+cov
index 2dc72c228..2dc72c228 100644
--- a/src/mint/afl-tests/id:000912,src:000003,op:arith8,pos:102,val:-34,+cov
+++ b/src/exchange/afl-tests/id:000912,src:000003,op:arith8,pos:102,val:-34,+cov
diff --git a/src/mint/afl-tests/id:000913,src:000003,op:arith8,pos:103,val:-9,+cov b/src/exchange/afl-tests/id:000913,src:000003,op:arith8,pos:103,val:-9,+cov
index 9afe3a253..9afe3a253 100644
--- a/src/mint/afl-tests/id:000913,src:000003,op:arith8,pos:103,val:-9,+cov
+++ b/src/exchange/afl-tests/id:000913,src:000003,op:arith8,pos:103,val:-9,+cov
diff --git a/src/mint/afl-tests/id:000914,src:000003,op:arith8,pos:103,val:+12 b/src/exchange/afl-tests/id:000914,src:000003,op:arith8,pos:103,val:+12
index 72a270322..72a270322 100644
--- a/src/mint/afl-tests/id:000914,src:000003,op:arith8,pos:103,val:+12
+++ b/src/exchange/afl-tests/id:000914,src:000003,op:arith8,pos:103,val:+12
diff --git a/src/mint/afl-tests/id:000915,src:000003,op:arith8,pos:103,val:+20,+cov b/src/exchange/afl-tests/id:000915,src:000003,op:arith8,pos:103,val:+20,+cov
index 6377fb486..6377fb486 100644
--- a/src/mint/afl-tests/id:000915,src:000003,op:arith8,pos:103,val:+20,+cov
+++ b/src/exchange/afl-tests/id:000915,src:000003,op:arith8,pos:103,val:+20,+cov
diff --git a/src/mint/afl-tests/id:000916,src:000003,op:arith8,pos:103,val:+22,+cov b/src/exchange/afl-tests/id:000916,src:000003,op:arith8,pos:103,val:+22,+cov
index 1991d1942..1991d1942 100644
--- a/src/mint/afl-tests/id:000916,src:000003,op:arith8,pos:103,val:+22,+cov
+++ b/src/exchange/afl-tests/id:000916,src:000003,op:arith8,pos:103,val:+22,+cov
diff --git a/src/mint/afl-tests/id:000917,src:000003,op:arith8,pos:103,val:+29,+cov b/src/exchange/afl-tests/id:000917,src:000003,op:arith8,pos:103,val:+29,+cov
index 12842c912..12842c912 100644
--- a/src/mint/afl-tests/id:000917,src:000003,op:arith8,pos:103,val:+29,+cov
+++ b/src/exchange/afl-tests/id:000917,src:000003,op:arith8,pos:103,val:+29,+cov
diff --git a/src/mint/afl-tests/id:000918,src:000003,op:arith8,pos:103,val:+33,+cov b/src/exchange/afl-tests/id:000918,src:000003,op:arith8,pos:103,val:+33,+cov
index 8c2a9ac21..8c2a9ac21 100644
--- a/src/mint/afl-tests/id:000918,src:000003,op:arith8,pos:103,val:+33,+cov
+++ b/src/exchange/afl-tests/id:000918,src:000003,op:arith8,pos:103,val:+33,+cov
diff --git a/src/mint/afl-tests/id:000919,src:000003,op:arith8,pos:104,val:-10,+cov b/src/exchange/afl-tests/id:000919,src:000003,op:arith8,pos:104,val:-10,+cov
index 252570d4c..252570d4c 100644
--- a/src/mint/afl-tests/id:000919,src:000003,op:arith8,pos:104,val:-10,+cov
+++ b/src/exchange/afl-tests/id:000919,src:000003,op:arith8,pos:104,val:-10,+cov
diff --git a/src/mint/afl-tests/id:000920,src:000003,op:arith8,pos:104,val:-12,+cov b/src/exchange/afl-tests/id:000920,src:000003,op:arith8,pos:104,val:-12,+cov
index 49d6946a6..49d6946a6 100644
--- a/src/mint/afl-tests/id:000920,src:000003,op:arith8,pos:104,val:-12,+cov
+++ b/src/exchange/afl-tests/id:000920,src:000003,op:arith8,pos:104,val:-12,+cov
diff --git a/src/mint/afl-tests/id:000921,src:000003,op:arith8,pos:104,val:+34,+cov b/src/exchange/afl-tests/id:000921,src:000003,op:arith8,pos:104,val:+34,+cov
index 193b82567..193b82567 100644
--- a/src/mint/afl-tests/id:000921,src:000003,op:arith8,pos:104,val:+34,+cov
+++ b/src/exchange/afl-tests/id:000921,src:000003,op:arith8,pos:104,val:+34,+cov
diff --git a/src/mint/afl-tests/id:000922,src:000003,op:arith8,pos:106,val:+5,+cov b/src/exchange/afl-tests/id:000922,src:000003,op:arith8,pos:106,val:+5,+cov
index 3a0ed74ac..3a0ed74ac 100644
--- a/src/mint/afl-tests/id:000922,src:000003,op:arith8,pos:106,val:+5,+cov
+++ b/src/exchange/afl-tests/id:000922,src:000003,op:arith8,pos:106,val:+5,+cov
diff --git a/src/mint/afl-tests/id:000923,src:000003,op:arith8,pos:106,val:-13,+cov b/src/exchange/afl-tests/id:000923,src:000003,op:arith8,pos:106,val:-13,+cov
index c4e20580e..c4e20580e 100644
--- a/src/mint/afl-tests/id:000923,src:000003,op:arith8,pos:106,val:-13,+cov
+++ b/src/exchange/afl-tests/id:000923,src:000003,op:arith8,pos:106,val:-13,+cov
diff --git a/src/mint/afl-tests/id:000924,src:000003,op:arith8,pos:110,val:+15,+cov b/src/exchange/afl-tests/id:000924,src:000003,op:arith8,pos:110,val:+15,+cov
index 61eb8b650..61eb8b650 100644
--- a/src/mint/afl-tests/id:000924,src:000003,op:arith8,pos:110,val:+15,+cov
+++ b/src/exchange/afl-tests/id:000924,src:000003,op:arith8,pos:110,val:+15,+cov
diff --git a/src/mint/afl-tests/id:000925,src:000003,op:arith8,pos:112,val:-13,+cov b/src/exchange/afl-tests/id:000925,src:000003,op:arith8,pos:112,val:-13,+cov
index 9333ce8e0..9333ce8e0 100644
--- a/src/mint/afl-tests/id:000925,src:000003,op:arith8,pos:112,val:-13,+cov
+++ b/src/exchange/afl-tests/id:000925,src:000003,op:arith8,pos:112,val:-13,+cov
diff --git a/src/mint/afl-tests/id:000926,src:000003,op:arith8,pos:113,val:+34,+cov b/src/exchange/afl-tests/id:000926,src:000003,op:arith8,pos:113,val:+34,+cov
index 6221fe08f..6221fe08f 100644
--- a/src/mint/afl-tests/id:000926,src:000003,op:arith8,pos:113,val:+34,+cov
+++ b/src/exchange/afl-tests/id:000926,src:000003,op:arith8,pos:113,val:+34,+cov
diff --git a/src/mint/afl-tests/id:000927,src:000003,op:arith8,pos:114,val:+5,+cov b/src/exchange/afl-tests/id:000927,src:000003,op:arith8,pos:114,val:+5,+cov
index 80c1d1621..80c1d1621 100644
--- a/src/mint/afl-tests/id:000927,src:000003,op:arith8,pos:114,val:+5,+cov
+++ b/src/exchange/afl-tests/id:000927,src:000003,op:arith8,pos:114,val:+5,+cov
diff --git a/src/mint/afl-tests/id:000928,src:000003,op:arith8,pos:114,val:+26,+cov b/src/exchange/afl-tests/id:000928,src:000003,op:arith8,pos:114,val:+26,+cov
index b40bbdd99..b40bbdd99 100644
--- a/src/mint/afl-tests/id:000928,src:000003,op:arith8,pos:114,val:+26,+cov
+++ b/src/exchange/afl-tests/id:000928,src:000003,op:arith8,pos:114,val:+26,+cov
diff --git a/src/mint/afl-tests/id:000929,src:000003,op:arith8,pos:114,val:-27,+cov b/src/exchange/afl-tests/id:000929,src:000003,op:arith8,pos:114,val:-27,+cov
index c4e1e34b3..c4e1e34b3 100644
--- a/src/mint/afl-tests/id:000929,src:000003,op:arith8,pos:114,val:-27,+cov
+++ b/src/exchange/afl-tests/id:000929,src:000003,op:arith8,pos:114,val:-27,+cov
diff --git a/src/mint/afl-tests/id:000930,src:000003,op:arith8,pos:118,val:-28,+cov b/src/exchange/afl-tests/id:000930,src:000003,op:arith8,pos:118,val:-28,+cov
index e6c25bc9b..e6c25bc9b 100644
--- a/src/mint/afl-tests/id:000930,src:000003,op:arith8,pos:118,val:-28,+cov
+++ b/src/exchange/afl-tests/id:000930,src:000003,op:arith8,pos:118,val:-28,+cov
diff --git a/src/mint/afl-tests/id:000931,src:000003,op:arith8,pos:119,val:+12,+cov b/src/exchange/afl-tests/id:000931,src:000003,op:arith8,pos:119,val:+12,+cov
index 1f154fd0d..1f154fd0d 100644
--- a/src/mint/afl-tests/id:000931,src:000003,op:arith8,pos:119,val:+12,+cov
+++ b/src/exchange/afl-tests/id:000931,src:000003,op:arith8,pos:119,val:+12,+cov
diff --git a/src/mint/afl-tests/id:000932,src:000003,op:arith8,pos:119,val:+27,+cov b/src/exchange/afl-tests/id:000932,src:000003,op:arith8,pos:119,val:+27,+cov
index c08f57d0b..c08f57d0b 100644
--- a/src/mint/afl-tests/id:000932,src:000003,op:arith8,pos:119,val:+27,+cov
+++ b/src/exchange/afl-tests/id:000932,src:000003,op:arith8,pos:119,val:+27,+cov
diff --git a/src/mint/afl-tests/id:000933,src:000003,op:arith8,pos:122,val:-4,+cov b/src/exchange/afl-tests/id:000933,src:000003,op:arith8,pos:122,val:-4,+cov
index fd1fe2a23..fd1fe2a23 100644
--- a/src/mint/afl-tests/id:000933,src:000003,op:arith8,pos:122,val:-4,+cov
+++ b/src/exchange/afl-tests/id:000933,src:000003,op:arith8,pos:122,val:-4,+cov
diff --git a/src/mint/afl-tests/id:000934,src:000003,op:arith8,pos:122,val:-26,+cov b/src/exchange/afl-tests/id:000934,src:000003,op:arith8,pos:122,val:-26,+cov
index a52e79133..a52e79133 100644
--- a/src/mint/afl-tests/id:000934,src:000003,op:arith8,pos:122,val:-26,+cov
+++ b/src/exchange/afl-tests/id:000934,src:000003,op:arith8,pos:122,val:-26,+cov
diff --git a/src/mint/afl-tests/id:000935,src:000003,op:arith8,pos:122,val:+35,+cov b/src/exchange/afl-tests/id:000935,src:000003,op:arith8,pos:122,val:+35,+cov
index cb64996e0..cb64996e0 100644
--- a/src/mint/afl-tests/id:000935,src:000003,op:arith8,pos:122,val:+35,+cov
+++ b/src/exchange/afl-tests/id:000935,src:000003,op:arith8,pos:122,val:+35,+cov
diff --git a/src/mint/afl-tests/id:000936,src:000003,op:arith8,pos:123,val:-11,+cov b/src/exchange/afl-tests/id:000936,src:000003,op:arith8,pos:123,val:-11,+cov
index 979faa6ce..979faa6ce 100644
--- a/src/mint/afl-tests/id:000936,src:000003,op:arith8,pos:123,val:-11,+cov
+++ b/src/exchange/afl-tests/id:000936,src:000003,op:arith8,pos:123,val:-11,+cov
diff --git a/src/mint/afl-tests/id:000937,src:000003,op:arith8,pos:124,val:-14,+cov b/src/exchange/afl-tests/id:000937,src:000003,op:arith8,pos:124,val:-14,+cov
index 5aff0b9e5..5aff0b9e5 100644
--- a/src/mint/afl-tests/id:000937,src:000003,op:arith8,pos:124,val:-14,+cov
+++ b/src/exchange/afl-tests/id:000937,src:000003,op:arith8,pos:124,val:-14,+cov
diff --git a/src/mint/afl-tests/id:000938,src:000003,op:arith8,pos:128,val:+5,+cov b/src/exchange/afl-tests/id:000938,src:000003,op:arith8,pos:128,val:+5,+cov
index c1cbf35e3..c1cbf35e3 100644
--- a/src/mint/afl-tests/id:000938,src:000003,op:arith8,pos:128,val:+5,+cov
+++ b/src/exchange/afl-tests/id:000938,src:000003,op:arith8,pos:128,val:+5,+cov
diff --git a/src/mint/afl-tests/id:000939,src:000003,op:arith8,pos:129,val:+21,+cov b/src/exchange/afl-tests/id:000939,src:000003,op:arith8,pos:129,val:+21,+cov
index 30446f009..30446f009 100644
--- a/src/mint/afl-tests/id:000939,src:000003,op:arith8,pos:129,val:+21,+cov
+++ b/src/exchange/afl-tests/id:000939,src:000003,op:arith8,pos:129,val:+21,+cov
diff --git a/src/mint/afl-tests/id:000940,src:000003,op:arith8,pos:133,val:-7,+cov b/src/exchange/afl-tests/id:000940,src:000003,op:arith8,pos:133,val:-7,+cov
index b91dd1aa3..b91dd1aa3 100644
--- a/src/mint/afl-tests/id:000940,src:000003,op:arith8,pos:133,val:-7,+cov
+++ b/src/exchange/afl-tests/id:000940,src:000003,op:arith8,pos:133,val:-7,+cov
diff --git a/src/mint/afl-tests/id:000941,src:000003,op:arith8,pos:133,val:+20,+cov b/src/exchange/afl-tests/id:000941,src:000003,op:arith8,pos:133,val:+20,+cov
index 4f05b4bfb..4f05b4bfb 100644
--- a/src/mint/afl-tests/id:000941,src:000003,op:arith8,pos:133,val:+20,+cov
+++ b/src/exchange/afl-tests/id:000941,src:000003,op:arith8,pos:133,val:+20,+cov
diff --git a/src/mint/afl-tests/id:000942,src:000003,op:arith8,pos:135,val:-26,+cov b/src/exchange/afl-tests/id:000942,src:000003,op:arith8,pos:135,val:-26,+cov
index 435feabbf..435feabbf 100644
--- a/src/mint/afl-tests/id:000942,src:000003,op:arith8,pos:135,val:-26,+cov
+++ b/src/exchange/afl-tests/id:000942,src:000003,op:arith8,pos:135,val:-26,+cov
diff --git a/src/mint/afl-tests/id:000943,src:000003,op:arith8,pos:141,val:+1,+cov b/src/exchange/afl-tests/id:000943,src:000003,op:arith8,pos:141,val:+1,+cov
index acf781914..acf781914 100644
--- a/src/mint/afl-tests/id:000943,src:000003,op:arith8,pos:141,val:+1,+cov
+++ b/src/exchange/afl-tests/id:000943,src:000003,op:arith8,pos:141,val:+1,+cov
diff --git a/src/mint/afl-tests/id:000944,src:000003,op:arith8,pos:143,val:-5,+cov b/src/exchange/afl-tests/id:000944,src:000003,op:arith8,pos:143,val:-5,+cov
index f90df0388..f90df0388 100644
--- a/src/mint/afl-tests/id:000944,src:000003,op:arith8,pos:143,val:-5,+cov
+++ b/src/exchange/afl-tests/id:000944,src:000003,op:arith8,pos:143,val:-5,+cov
diff --git a/src/mint/afl-tests/id:000945,src:000003,op:arith8,pos:145,val:+21,+cov b/src/exchange/afl-tests/id:000945,src:000003,op:arith8,pos:145,val:+21,+cov
index b109313e0..b109313e0 100644
--- a/src/mint/afl-tests/id:000945,src:000003,op:arith8,pos:145,val:+21,+cov
+++ b/src/exchange/afl-tests/id:000945,src:000003,op:arith8,pos:145,val:+21,+cov
diff --git a/src/mint/afl-tests/id:000946,src:000003,op:arith8,pos:147,val:-9,+cov b/src/exchange/afl-tests/id:000946,src:000003,op:arith8,pos:147,val:-9,+cov
index 65dee0ea2..65dee0ea2 100644
--- a/src/mint/afl-tests/id:000946,src:000003,op:arith8,pos:147,val:-9,+cov
+++ b/src/exchange/afl-tests/id:000946,src:000003,op:arith8,pos:147,val:-9,+cov
diff --git a/src/mint/afl-tests/id:000947,src:000003,op:arith8,pos:147,val:+31,+cov b/src/exchange/afl-tests/id:000947,src:000003,op:arith8,pos:147,val:+31,+cov
index 1043610ff..1043610ff 100644
--- a/src/mint/afl-tests/id:000947,src:000003,op:arith8,pos:147,val:+31,+cov
+++ b/src/exchange/afl-tests/id:000947,src:000003,op:arith8,pos:147,val:+31,+cov
diff --git a/src/mint/afl-tests/id:000948,src:000003,op:arith8,pos:148,val:+3,+cov b/src/exchange/afl-tests/id:000948,src:000003,op:arith8,pos:148,val:+3,+cov
index dabe160c0..dabe160c0 100644
--- a/src/mint/afl-tests/id:000948,src:000003,op:arith8,pos:148,val:+3,+cov
+++ b/src/exchange/afl-tests/id:000948,src:000003,op:arith8,pos:148,val:+3,+cov
diff --git a/src/mint/afl-tests/id:000949,src:000003,op:arith8,pos:148,val:-11,+cov b/src/exchange/afl-tests/id:000949,src:000003,op:arith8,pos:148,val:-11,+cov
index d36334b62..d36334b62 100644
--- a/src/mint/afl-tests/id:000949,src:000003,op:arith8,pos:148,val:-11,+cov
+++ b/src/exchange/afl-tests/id:000949,src:000003,op:arith8,pos:148,val:-11,+cov
diff --git a/src/mint/afl-tests/id:000950,src:000003,op:arith8,pos:149,val:-18,+cov b/src/exchange/afl-tests/id:000950,src:000003,op:arith8,pos:149,val:-18,+cov
index e40bc63bd..e40bc63bd 100644
--- a/src/mint/afl-tests/id:000950,src:000003,op:arith8,pos:149,val:-18,+cov
+++ b/src/exchange/afl-tests/id:000950,src:000003,op:arith8,pos:149,val:-18,+cov
diff --git a/src/mint/afl-tests/id:000951,src:000003,op:arith8,pos:151,val:-21,+cov b/src/exchange/afl-tests/id:000951,src:000003,op:arith8,pos:151,val:-21,+cov
index 537af8de5..537af8de5 100644
--- a/src/mint/afl-tests/id:000951,src:000003,op:arith8,pos:151,val:-21,+cov
+++ b/src/exchange/afl-tests/id:000951,src:000003,op:arith8,pos:151,val:-21,+cov
diff --git a/src/mint/afl-tests/id:000952,src:000003,op:arith8,pos:151,val:+26,+cov b/src/exchange/afl-tests/id:000952,src:000003,op:arith8,pos:151,val:+26,+cov
index 9eac5215a..9eac5215a 100644
--- a/src/mint/afl-tests/id:000952,src:000003,op:arith8,pos:151,val:+26,+cov
+++ b/src/exchange/afl-tests/id:000952,src:000003,op:arith8,pos:151,val:+26,+cov
diff --git a/src/mint/afl-tests/id:000953,src:000003,op:arith8,pos:151,val:-30,+cov b/src/exchange/afl-tests/id:000953,src:000003,op:arith8,pos:151,val:-30,+cov
index d9c3ab03d..d9c3ab03d 100644
--- a/src/mint/afl-tests/id:000953,src:000003,op:arith8,pos:151,val:-30,+cov
+++ b/src/exchange/afl-tests/id:000953,src:000003,op:arith8,pos:151,val:-30,+cov
diff --git a/src/mint/afl-tests/id:000954,src:000003,op:arith16,pos:88,val:-16,+cov b/src/exchange/afl-tests/id:000954,src:000003,op:arith16,pos:88,val:-16,+cov
index 588d9d272..588d9d272 100644
--- a/src/mint/afl-tests/id:000954,src:000003,op:arith16,pos:88,val:-16,+cov
+++ b/src/exchange/afl-tests/id:000954,src:000003,op:arith16,pos:88,val:-16,+cov
diff --git a/src/mint/afl-tests/id:000955,src:000003,op:arith16,pos:109,val:-19,+cov b/src/exchange/afl-tests/id:000955,src:000003,op:arith16,pos:109,val:-19,+cov
index c669844df..c669844df 100644
--- a/src/mint/afl-tests/id:000955,src:000003,op:arith16,pos:109,val:-19,+cov
+++ b/src/exchange/afl-tests/id:000955,src:000003,op:arith16,pos:109,val:-19,+cov
diff --git a/src/mint/afl-tests/id:000956,src:000003,op:arith16,pos:109,val:-26,+cov b/src/exchange/afl-tests/id:000956,src:000003,op:arith16,pos:109,val:-26,+cov
index 46cb980b3..46cb980b3 100644
--- a/src/mint/afl-tests/id:000956,src:000003,op:arith16,pos:109,val:-26,+cov
+++ b/src/exchange/afl-tests/id:000956,src:000003,op:arith16,pos:109,val:-26,+cov
diff --git a/src/mint/afl-tests/id:000957,src:000003,op:arith16,pos:109,val:-33,+cov b/src/exchange/afl-tests/id:000957,src:000003,op:arith16,pos:109,val:-33,+cov
index 365ef3f8e..365ef3f8e 100644
--- a/src/mint/afl-tests/id:000957,src:000003,op:arith16,pos:109,val:-33,+cov
+++ b/src/exchange/afl-tests/id:000957,src:000003,op:arith16,pos:109,val:-33,+cov
diff --git a/src/mint/afl-tests/id:000958,src:000003,op:arith16,pos:121,val:-34,+cov b/src/exchange/afl-tests/id:000958,src:000003,op:arith16,pos:121,val:-34,+cov
index 883400b0c..883400b0c 100644
--- a/src/mint/afl-tests/id:000958,src:000003,op:arith16,pos:121,val:-34,+cov
+++ b/src/exchange/afl-tests/id:000958,src:000003,op:arith16,pos:121,val:-34,+cov
diff --git a/src/mint/afl-tests/id:000959,src:000003,op:int8,pos:80,val:+16,+cov b/src/exchange/afl-tests/id:000959,src:000003,op:int8,pos:80,val:+16,+cov
index 245a87782..245a87782 100644
--- a/src/mint/afl-tests/id:000959,src:000003,op:int8,pos:80,val:+16,+cov
+++ b/src/exchange/afl-tests/id:000959,src:000003,op:int8,pos:80,val:+16,+cov
diff --git a/src/mint/afl-tests/id:000960,src:000003,op:int8,pos:83,val:+1,+cov b/src/exchange/afl-tests/id:000960,src:000003,op:int8,pos:83,val:+1,+cov
index 76311eddc..76311eddc 100644
--- a/src/mint/afl-tests/id:000960,src:000003,op:int8,pos:83,val:+1,+cov
+++ b/src/exchange/afl-tests/id:000960,src:000003,op:int8,pos:83,val:+1,+cov
diff --git a/src/mint/afl-tests/id:000961,src:000003,op:int8,pos:101,val:+64,+cov b/src/exchange/afl-tests/id:000961,src:000003,op:int8,pos:101,val:+64,+cov
index 11503890f..11503890f 100644
--- a/src/mint/afl-tests/id:000961,src:000003,op:int8,pos:101,val:+64,+cov
+++ b/src/exchange/afl-tests/id:000961,src:000003,op:int8,pos:101,val:+64,+cov
diff --git a/src/mint/afl-tests/id:000962,src:000003,op:int8,pos:120,val:-128,+cov b/src/exchange/afl-tests/id:000962,src:000003,op:int8,pos:120,val:-128,+cov
index deb20dfc4..deb20dfc4 100644
--- a/src/mint/afl-tests/id:000962,src:000003,op:int8,pos:120,val:-128,+cov
+++ b/src/exchange/afl-tests/id:000962,src:000003,op:int8,pos:120,val:-128,+cov
diff --git a/src/mint/afl-tests/id:000963,src:000003,op:int8,pos:139,val:+16,+cov b/src/exchange/afl-tests/id:000963,src:000003,op:int8,pos:139,val:+16,+cov
index 295b45834..295b45834 100644
--- a/src/mint/afl-tests/id:000963,src:000003,op:int8,pos:139,val:+16,+cov
+++ b/src/exchange/afl-tests/id:000963,src:000003,op:int8,pos:139,val:+16,+cov
diff --git a/src/mint/afl-tests/id:000964,src:000003,op:int16,pos:81,val:+127,+cov b/src/exchange/afl-tests/id:000964,src:000003,op:int16,pos:81,val:+127,+cov
index f88675cf7..f88675cf7 100644
--- a/src/mint/afl-tests/id:000964,src:000003,op:int16,pos:81,val:+127,+cov
+++ b/src/exchange/afl-tests/id:000964,src:000003,op:int16,pos:81,val:+127,+cov
diff --git a/src/mint/afl-tests/id:000965,src:000003,op:int16,pos:95,val:+1,+cov b/src/exchange/afl-tests/id:000965,src:000003,op:int16,pos:95,val:+1,+cov
index cf3c98fd9..cf3c98fd9 100644
--- a/src/mint/afl-tests/id:000965,src:000003,op:int16,pos:95,val:+1,+cov
+++ b/src/exchange/afl-tests/id:000965,src:000003,op:int16,pos:95,val:+1,+cov
diff --git a/src/mint/afl-tests/id:000966,src:000003,op:int16,pos:97,val:be:+127,+cov b/src/exchange/afl-tests/id:000966,src:000003,op:int16,pos:97,val:be:+127,+cov
index ebeff8ca4..ebeff8ca4 100644
--- a/src/mint/afl-tests/id:000966,src:000003,op:int16,pos:97,val:be:+127,+cov
+++ b/src/exchange/afl-tests/id:000966,src:000003,op:int16,pos:97,val:be:+127,+cov
diff --git a/src/mint/afl-tests/id:000967,src:000003,op:int16,pos:98,val:+1,+cov b/src/exchange/afl-tests/id:000967,src:000003,op:int16,pos:98,val:+1,+cov
index 0e5190281..0e5190281 100644
--- a/src/mint/afl-tests/id:000967,src:000003,op:int16,pos:98,val:+1,+cov
+++ b/src/exchange/afl-tests/id:000967,src:000003,op:int16,pos:98,val:+1,+cov
diff --git a/src/mint/afl-tests/id:000968,src:000003,op:int16,pos:100,val:-1,+cov b/src/exchange/afl-tests/id:000968,src:000003,op:int16,pos:100,val:-1,+cov
index 44cd6d9ac..44cd6d9ac 100644
--- a/src/mint/afl-tests/id:000968,src:000003,op:int16,pos:100,val:-1,+cov
+++ b/src/exchange/afl-tests/id:000968,src:000003,op:int16,pos:100,val:-1,+cov
diff --git a/src/mint/afl-tests/id:000969,src:000003,op:int16,pos:102,val:be:+127,+cov b/src/exchange/afl-tests/id:000969,src:000003,op:int16,pos:102,val:be:+127,+cov
index bc0b934e9..bc0b934e9 100644
--- a/src/mint/afl-tests/id:000969,src:000003,op:int16,pos:102,val:be:+127,+cov
+++ b/src/exchange/afl-tests/id:000969,src:000003,op:int16,pos:102,val:be:+127,+cov
diff --git a/src/mint/afl-tests/id:000970,src:000003,op:int16,pos:107,val:-128,+cov b/src/exchange/afl-tests/id:000970,src:000003,op:int16,pos:107,val:-128,+cov
index acf89f2d3..acf89f2d3 100644
--- a/src/mint/afl-tests/id:000970,src:000003,op:int16,pos:107,val:-128,+cov
+++ b/src/exchange/afl-tests/id:000970,src:000003,op:int16,pos:107,val:-128,+cov
diff --git a/src/mint/afl-tests/id:000971,src:000003,op:int16,pos:108,val:be:+127,+cov b/src/exchange/afl-tests/id:000971,src:000003,op:int16,pos:108,val:be:+127,+cov
index c7d9a2692..c7d9a2692 100644
--- a/src/mint/afl-tests/id:000971,src:000003,op:int16,pos:108,val:be:+127,+cov
+++ b/src/exchange/afl-tests/id:000971,src:000003,op:int16,pos:108,val:be:+127,+cov
diff --git a/src/mint/afl-tests/id:000972,src:000003,op:int16,pos:109,val:be:+100,+cov b/src/exchange/afl-tests/id:000972,src:000003,op:int16,pos:109,val:be:+100,+cov
index 6fddc5c97..6fddc5c97 100644
--- a/src/mint/afl-tests/id:000972,src:000003,op:int16,pos:109,val:be:+100,+cov
+++ b/src/exchange/afl-tests/id:000972,src:000003,op:int16,pos:109,val:be:+100,+cov
diff --git a/src/mint/afl-tests/id:000973,src:000003,op:int16,pos:125,val:+1000,+cov b/src/exchange/afl-tests/id:000973,src:000003,op:int16,pos:125,val:+1000,+cov
index 28ac24ca1..28ac24ca1 100644
--- a/src/mint/afl-tests/id:000973,src:000003,op:int16,pos:125,val:+1000,+cov
+++ b/src/exchange/afl-tests/id:000973,src:000003,op:int16,pos:125,val:+1000,+cov
diff --git a/src/mint/afl-tests/id:000974,src:000003,op:int16,pos:137,val:be:+32,+cov b/src/exchange/afl-tests/id:000974,src:000003,op:int16,pos:137,val:be:+32,+cov
index 577590a16..577590a16 100644
--- a/src/mint/afl-tests/id:000974,src:000003,op:int16,pos:137,val:be:+32,+cov
+++ b/src/exchange/afl-tests/id:000974,src:000003,op:int16,pos:137,val:be:+32,+cov
diff --git a/src/mint/afl-tests/id:000975,src:000003,op:int16,pos:150,val:be:+255,+cov b/src/exchange/afl-tests/id:000975,src:000003,op:int16,pos:150,val:be:+255,+cov
index ec5a1cd90..ec5a1cd90 100644
--- a/src/mint/afl-tests/id:000975,src:000003,op:int16,pos:150,val:be:+255,+cov
+++ b/src/exchange/afl-tests/id:000975,src:000003,op:int16,pos:150,val:be:+255,+cov
diff --git a/src/mint/afl-tests/id:000976,src:000003,op:int32,pos:1,val:be:+65535 b/src/exchange/afl-tests/id:000976,src:000003,op:int32,pos:1,val:be:+65535
index 510fc61db..510fc61db 100644
--- a/src/mint/afl-tests/id:000976,src:000003,op:int32,pos:1,val:be:+65535
+++ b/src/exchange/afl-tests/id:000976,src:000003,op:int32,pos:1,val:be:+65535
diff --git a/src/mint/afl-tests/id:000977,src:000003,op:int32,pos:54,val:+32768,+cov b/src/exchange/afl-tests/id:000977,src:000003,op:int32,pos:54,val:+32768,+cov
index b7636df4d..b7636df4d 100644
--- a/src/mint/afl-tests/id:000977,src:000003,op:int32,pos:54,val:+32768,+cov
+++ b/src/exchange/afl-tests/id:000977,src:000003,op:int32,pos:54,val:+32768,+cov
diff --git a/src/mint/afl-tests/id:000978,src:000003,op:int32,pos:80,val:be:+32767,+cov b/src/exchange/afl-tests/id:000978,src:000003,op:int32,pos:80,val:be:+32767,+cov
index 59b35346e..59b35346e 100644
--- a/src/mint/afl-tests/id:000978,src:000003,op:int32,pos:80,val:be:+32767,+cov
+++ b/src/exchange/afl-tests/id:000978,src:000003,op:int32,pos:80,val:be:+32767,+cov
diff --git a/src/mint/afl-tests/id:000979,src:000003,op:int32,pos:84,val:+2147483647 b/src/exchange/afl-tests/id:000979,src:000003,op:int32,pos:84,val:+2147483647
index 818508f9e..818508f9e 100644
--- a/src/mint/afl-tests/id:000979,src:000003,op:int32,pos:84,val:+2147483647
+++ b/src/exchange/afl-tests/id:000979,src:000003,op:int32,pos:84,val:+2147483647
diff --git a/src/mint/afl-tests/id:000980,src:000003,op:int32,pos:89,val:be:+4096,+cov b/src/exchange/afl-tests/id:000980,src:000003,op:int32,pos:89,val:be:+4096,+cov
index 661fbfb23..661fbfb23 100644
--- a/src/mint/afl-tests/id:000980,src:000003,op:int32,pos:89,val:be:+4096,+cov
+++ b/src/exchange/afl-tests/id:000980,src:000003,op:int32,pos:89,val:be:+4096,+cov
diff --git a/src/mint/afl-tests/id:000981,src:000003,op:int32,pos:98,val:-129,+cov b/src/exchange/afl-tests/id:000981,src:000003,op:int32,pos:98,val:-129,+cov
index 38a988472..38a988472 100644
--- a/src/mint/afl-tests/id:000981,src:000003,op:int32,pos:98,val:-129,+cov
+++ b/src/exchange/afl-tests/id:000981,src:000003,op:int32,pos:98,val:-129,+cov
diff --git a/src/mint/afl-tests/id:000982,src:000003,op:int32,pos:99,val:-32769,+cov b/src/exchange/afl-tests/id:000982,src:000003,op:int32,pos:99,val:-32769,+cov
index 0e9ee2bd1..0e9ee2bd1 100644
--- a/src/mint/afl-tests/id:000982,src:000003,op:int32,pos:99,val:-32769,+cov
+++ b/src/exchange/afl-tests/id:000982,src:000003,op:int32,pos:99,val:-32769,+cov
diff --git a/src/mint/afl-tests/id:000983,src:000003,op:int32,pos:99,val:+100663045,+cov b/src/exchange/afl-tests/id:000983,src:000003,op:int32,pos:99,val:+100663045,+cov
index 3b45040a1..3b45040a1 100644
--- a/src/mint/afl-tests/id:000983,src:000003,op:int32,pos:99,val:+100663045,+cov
+++ b/src/exchange/afl-tests/id:000983,src:000003,op:int32,pos:99,val:+100663045,+cov
diff --git a/src/mint/afl-tests/id:000984,src:000003,op:int32,pos:101,val:+64,+cov b/src/exchange/afl-tests/id:000984,src:000003,op:int32,pos:101,val:+64,+cov
index 3541a43dd..3541a43dd 100644
--- a/src/mint/afl-tests/id:000984,src:000003,op:int32,pos:101,val:+64,+cov
+++ b/src/exchange/afl-tests/id:000984,src:000003,op:int32,pos:101,val:+64,+cov
diff --git a/src/mint/afl-tests/id:000985,src:000003,op:int32,pos:102,val:be:+32,+cov b/src/exchange/afl-tests/id:000985,src:000003,op:int32,pos:102,val:be:+32,+cov
index 3bcb01144..3bcb01144 100644
--- a/src/mint/afl-tests/id:000985,src:000003,op:int32,pos:102,val:be:+32,+cov
+++ b/src/exchange/afl-tests/id:000985,src:000003,op:int32,pos:102,val:be:+32,+cov
diff --git a/src/mint/afl-tests/id:000986,src:000003,op:int32,pos:105,val:be:+512,+cov b/src/exchange/afl-tests/id:000986,src:000003,op:int32,pos:105,val:be:+512,+cov
index f1143db78..f1143db78 100644
--- a/src/mint/afl-tests/id:000986,src:000003,op:int32,pos:105,val:be:+512,+cov
+++ b/src/exchange/afl-tests/id:000986,src:000003,op:int32,pos:105,val:be:+512,+cov
diff --git a/src/mint/afl-tests/id:000987,src:000003,op:int32,pos:106,val:+100,+cov b/src/exchange/afl-tests/id:000987,src:000003,op:int32,pos:106,val:+100,+cov
index 9da1d38d2..9da1d38d2 100644
--- a/src/mint/afl-tests/id:000987,src:000003,op:int32,pos:106,val:+100,+cov
+++ b/src/exchange/afl-tests/id:000987,src:000003,op:int32,pos:106,val:+100,+cov
diff --git a/src/mint/afl-tests/id:000988,src:000003,op:int32,pos:109,val:-100663046,+cov b/src/exchange/afl-tests/id:000988,src:000003,op:int32,pos:109,val:-100663046,+cov
index 8639e0fc9..8639e0fc9 100644
--- a/src/mint/afl-tests/id:000988,src:000003,op:int32,pos:109,val:-100663046,+cov
+++ b/src/exchange/afl-tests/id:000988,src:000003,op:int32,pos:109,val:-100663046,+cov
diff --git a/src/mint/afl-tests/id:000989,src:000003,op:int32,pos:120,val:+255,+cov b/src/exchange/afl-tests/id:000989,src:000003,op:int32,pos:120,val:+255,+cov
index 85eec95fc..85eec95fc 100644
--- a/src/mint/afl-tests/id:000989,src:000003,op:int32,pos:120,val:+255,+cov
+++ b/src/exchange/afl-tests/id:000989,src:000003,op:int32,pos:120,val:+255,+cov
diff --git a/src/mint/afl-tests/id:000990,src:000003,op:int32,pos:121,val:+1000,+cov b/src/exchange/afl-tests/id:000990,src:000003,op:int32,pos:121,val:+1000,+cov
index 341f2890d..341f2890d 100644
--- a/src/mint/afl-tests/id:000990,src:000003,op:int32,pos:121,val:+1000,+cov
+++ b/src/exchange/afl-tests/id:000990,src:000003,op:int32,pos:121,val:+1000,+cov
diff --git a/src/mint/afl-tests/id:000991,src:000003,op:int32,pos:121,val:-100663046,+cov b/src/exchange/afl-tests/id:000991,src:000003,op:int32,pos:121,val:-100663046,+cov
index a5daead54..a5daead54 100644
--- a/src/mint/afl-tests/id:000991,src:000003,op:int32,pos:121,val:-100663046,+cov
+++ b/src/exchange/afl-tests/id:000991,src:000003,op:int32,pos:121,val:-100663046,+cov
diff --git a/src/mint/afl-tests/id:000992,src:000003,op:int32,pos:121,val:be:+65535,+cov b/src/exchange/afl-tests/id:000992,src:000003,op:int32,pos:121,val:be:+65535,+cov
index 99b1c63af..99b1c63af 100644
--- a/src/mint/afl-tests/id:000992,src:000003,op:int32,pos:121,val:be:+65535,+cov
+++ b/src/exchange/afl-tests/id:000992,src:000003,op:int32,pos:121,val:be:+65535,+cov
diff --git a/src/mint/afl-tests/id:000993,src:000003,op:int32,pos:130,val:+100663045,+cov b/src/exchange/afl-tests/id:000993,src:000003,op:int32,pos:130,val:+100663045,+cov
index ed6c92dac..ed6c92dac 100644
--- a/src/mint/afl-tests/id:000993,src:000003,op:int32,pos:130,val:+100663045,+cov
+++ b/src/exchange/afl-tests/id:000993,src:000003,op:int32,pos:130,val:+100663045,+cov
diff --git a/src/mint/afl-tests/id:000994,src:000003,op:int32,pos:135,val:be:+32,+cov b/src/exchange/afl-tests/id:000994,src:000003,op:int32,pos:135,val:be:+32,+cov
index e84696596..e84696596 100644
--- a/src/mint/afl-tests/id:000994,src:000003,op:int32,pos:135,val:be:+32,+cov
+++ b/src/exchange/afl-tests/id:000994,src:000003,op:int32,pos:135,val:be:+32,+cov
diff --git a/src/mint/afl-tests/id:000995,src:000003,op:int32,pos:136,val:be:+127,+cov b/src/exchange/afl-tests/id:000995,src:000003,op:int32,pos:136,val:be:+127,+cov
index 2c4ed3cb2..2c4ed3cb2 100644
--- a/src/mint/afl-tests/id:000995,src:000003,op:int32,pos:136,val:be:+127,+cov
+++ b/src/exchange/afl-tests/id:000995,src:000003,op:int32,pos:136,val:be:+127,+cov
diff --git a/src/mint/afl-tests/id:000996,src:000003,op:int32,pos:138,val:+1,+cov b/src/exchange/afl-tests/id:000996,src:000003,op:int32,pos:138,val:+1,+cov
index 3e2e306d0..3e2e306d0 100644
--- a/src/mint/afl-tests/id:000996,src:000003,op:int32,pos:138,val:+1,+cov
+++ b/src/exchange/afl-tests/id:000996,src:000003,op:int32,pos:138,val:+1,+cov
diff --git a/src/mint/afl-tests/id:000997,src:000003,op:int32,pos:147,val:be:+127,+cov b/src/exchange/afl-tests/id:000997,src:000003,op:int32,pos:147,val:be:+127,+cov
index 767942d31..767942d31 100644
--- a/src/mint/afl-tests/id:000997,src:000003,op:int32,pos:147,val:be:+127,+cov
+++ b/src/exchange/afl-tests/id:000997,src:000003,op:int32,pos:147,val:be:+127,+cov
diff --git a/src/mint/afl-tests/id:000998,src:000003,op:ext_AO,pos:29,+cov b/src/exchange/afl-tests/id:000998,src:000003,op:ext_AO,pos:29,+cov
index 3ace43bf2..3ace43bf2 100644
--- a/src/mint/afl-tests/id:000998,src:000003,op:ext_AO,pos:29,+cov
+++ b/src/exchange/afl-tests/id:000998,src:000003,op:ext_AO,pos:29,+cov
diff --git a/src/mint/afl-tests/id:000999,src:000003,op:ext_AO,pos:31,+cov b/src/exchange/afl-tests/id:000999,src:000003,op:ext_AO,pos:31,+cov
index fe0bec5b6..fe0bec5b6 100644
--- a/src/mint/afl-tests/id:000999,src:000003,op:ext_AO,pos:31,+cov
+++ b/src/exchange/afl-tests/id:000999,src:000003,op:ext_AO,pos:31,+cov
diff --git a/src/mint/afl-tests/id:001000,src:000003,op:ext_AO,pos:37,+cov b/src/exchange/afl-tests/id:001000,src:000003,op:ext_AO,pos:37,+cov
index 065858eae..065858eae 100644
--- a/src/mint/afl-tests/id:001000,src:000003,op:ext_AO,pos:37,+cov
+++ b/src/exchange/afl-tests/id:001000,src:000003,op:ext_AO,pos:37,+cov
diff --git a/src/mint/afl-tests/id:001001,src:000003,op:ext_AO,pos:40,+cov b/src/exchange/afl-tests/id:001001,src:000003,op:ext_AO,pos:40,+cov
index 5c117ee8f..5c117ee8f 100644
--- a/src/mint/afl-tests/id:001001,src:000003,op:ext_AO,pos:40,+cov
+++ b/src/exchange/afl-tests/id:001001,src:000003,op:ext_AO,pos:40,+cov
diff --git a/src/mint/afl-tests/id:001002,src:000003,op:ext_AO,pos:44,+cov b/src/exchange/afl-tests/id:001002,src:000003,op:ext_AO,pos:44,+cov
index 5e904b337..5e904b337 100644
--- a/src/mint/afl-tests/id:001002,src:000003,op:ext_AO,pos:44,+cov
+++ b/src/exchange/afl-tests/id:001002,src:000003,op:ext_AO,pos:44,+cov
diff --git a/src/mint/afl-tests/id:001003,src:000003,op:ext_AO,pos:44,+cov b/src/exchange/afl-tests/id:001003,src:000003,op:ext_AO,pos:44,+cov
index 3c8cc6250..3c8cc6250 100644
--- a/src/mint/afl-tests/id:001003,src:000003,op:ext_AO,pos:44,+cov
+++ b/src/exchange/afl-tests/id:001003,src:000003,op:ext_AO,pos:44,+cov
diff --git a/src/mint/afl-tests/id:001004,src:000003,op:ext_AO,pos:51,+cov b/src/exchange/afl-tests/id:001004,src:000003,op:ext_AO,pos:51,+cov
index 678c15b8a..678c15b8a 100644
--- a/src/mint/afl-tests/id:001004,src:000003,op:ext_AO,pos:51,+cov
+++ b/src/exchange/afl-tests/id:001004,src:000003,op:ext_AO,pos:51,+cov
diff --git a/src/mint/afl-tests/id:001005,src:000003,op:ext_AO,pos:54,+cov b/src/exchange/afl-tests/id:001005,src:000003,op:ext_AO,pos:54,+cov
index df74c6765..df74c6765 100644
--- a/src/mint/afl-tests/id:001005,src:000003,op:ext_AO,pos:54,+cov
+++ b/src/exchange/afl-tests/id:001005,src:000003,op:ext_AO,pos:54,+cov
diff --git a/src/mint/afl-tests/id:001006,src:000003,op:ext_AO,pos:55,+cov b/src/exchange/afl-tests/id:001006,src:000003,op:ext_AO,pos:55,+cov
index 3f0ed93f5..3f0ed93f5 100644
--- a/src/mint/afl-tests/id:001006,src:000003,op:ext_AO,pos:55,+cov
+++ b/src/exchange/afl-tests/id:001006,src:000003,op:ext_AO,pos:55,+cov
diff --git a/src/mint/afl-tests/id:001007,src:000003,op:ext_AO,pos:61,+cov b/src/exchange/afl-tests/id:001007,src:000003,op:ext_AO,pos:61,+cov
index 8e27ae726..8e27ae726 100644
--- a/src/mint/afl-tests/id:001007,src:000003,op:ext_AO,pos:61,+cov
+++ b/src/exchange/afl-tests/id:001007,src:000003,op:ext_AO,pos:61,+cov
diff --git a/src/mint/afl-tests/id:001008,src:000003,op:ext_AO,pos:64,+cov b/src/exchange/afl-tests/id:001008,src:000003,op:ext_AO,pos:64,+cov
index 504edca42..504edca42 100644
--- a/src/mint/afl-tests/id:001008,src:000003,op:ext_AO,pos:64,+cov
+++ b/src/exchange/afl-tests/id:001008,src:000003,op:ext_AO,pos:64,+cov
diff --git a/src/mint/afl-tests/id:001009,src:000003,op:ext_AO,pos:66,+cov b/src/exchange/afl-tests/id:001009,src:000003,op:ext_AO,pos:66,+cov
index 8abf5fe4f..8abf5fe4f 100644
--- a/src/mint/afl-tests/id:001009,src:000003,op:ext_AO,pos:66,+cov
+++ b/src/exchange/afl-tests/id:001009,src:000003,op:ext_AO,pos:66,+cov
diff --git a/src/mint/afl-tests/id:001010,src:000003,op:ext_AO,pos:67,+cov b/src/exchange/afl-tests/id:001010,src:000003,op:ext_AO,pos:67,+cov
index c2ea619da..c2ea619da 100644
--- a/src/mint/afl-tests/id:001010,src:000003,op:ext_AO,pos:67,+cov
+++ b/src/exchange/afl-tests/id:001010,src:000003,op:ext_AO,pos:67,+cov
diff --git a/src/mint/afl-tests/id:001011,src:000003,op:ext_AO,pos:71,+cov b/src/exchange/afl-tests/id:001011,src:000003,op:ext_AO,pos:71,+cov
index 832ec77cb..832ec77cb 100644
--- a/src/mint/afl-tests/id:001011,src:000003,op:ext_AO,pos:71,+cov
+++ b/src/exchange/afl-tests/id:001011,src:000003,op:ext_AO,pos:71,+cov
diff --git a/src/mint/afl-tests/id:001012,src:000003,op:ext_AO,pos:80,+cov b/src/exchange/afl-tests/id:001012,src:000003,op:ext_AO,pos:80,+cov
index 01001189b..01001189b 100644
--- a/src/mint/afl-tests/id:001012,src:000003,op:ext_AO,pos:80,+cov
+++ b/src/exchange/afl-tests/id:001012,src:000003,op:ext_AO,pos:80,+cov
diff --git a/src/mint/afl-tests/id:001013,src:000003,op:ext_AO,pos:84,+cov b/src/exchange/afl-tests/id:001013,src:000003,op:ext_AO,pos:84,+cov
index 55c55ba9a..55c55ba9a 100644
--- a/src/mint/afl-tests/id:001013,src:000003,op:ext_AO,pos:84,+cov
+++ b/src/exchange/afl-tests/id:001013,src:000003,op:ext_AO,pos:84,+cov
diff --git a/src/mint/afl-tests/id:001014,src:000003,op:ext_AO,pos:84,+cov b/src/exchange/afl-tests/id:001014,src:000003,op:ext_AO,pos:84,+cov
index 6fb46117d..6fb46117d 100644
--- a/src/mint/afl-tests/id:001014,src:000003,op:ext_AO,pos:84,+cov
+++ b/src/exchange/afl-tests/id:001014,src:000003,op:ext_AO,pos:84,+cov
diff --git a/src/mint/afl-tests/id:001015,src:000003,op:ext_AO,pos:85,+cov b/src/exchange/afl-tests/id:001015,src:000003,op:ext_AO,pos:85,+cov
index 012eddc23..012eddc23 100644
--- a/src/mint/afl-tests/id:001015,src:000003,op:ext_AO,pos:85,+cov
+++ b/src/exchange/afl-tests/id:001015,src:000003,op:ext_AO,pos:85,+cov
diff --git a/src/mint/afl-tests/id:001016,src:000003,op:ext_AO,pos:86,+cov b/src/exchange/afl-tests/id:001016,src:000003,op:ext_AO,pos:86,+cov
index 23d4bbfec..23d4bbfec 100644
--- a/src/mint/afl-tests/id:001016,src:000003,op:ext_AO,pos:86,+cov
+++ b/src/exchange/afl-tests/id:001016,src:000003,op:ext_AO,pos:86,+cov
diff --git a/src/mint/afl-tests/id:001017,src:000003,op:ext_AO,pos:89,+cov b/src/exchange/afl-tests/id:001017,src:000003,op:ext_AO,pos:89,+cov
index a6f919570..a6f919570 100644
--- a/src/mint/afl-tests/id:001017,src:000003,op:ext_AO,pos:89,+cov
+++ b/src/exchange/afl-tests/id:001017,src:000003,op:ext_AO,pos:89,+cov
diff --git a/src/mint/afl-tests/id:001018,src:000003,op:ext_AO,pos:90,+cov b/src/exchange/afl-tests/id:001018,src:000003,op:ext_AO,pos:90,+cov
index 6b812280b..6b812280b 100644
--- a/src/mint/afl-tests/id:001018,src:000003,op:ext_AO,pos:90,+cov
+++ b/src/exchange/afl-tests/id:001018,src:000003,op:ext_AO,pos:90,+cov
diff --git a/src/mint/afl-tests/id:001019,src:000003,op:ext_AO,pos:90,+cov b/src/exchange/afl-tests/id:001019,src:000003,op:ext_AO,pos:90,+cov
index eee284d03..eee284d03 100644
--- a/src/mint/afl-tests/id:001019,src:000003,op:ext_AO,pos:90,+cov
+++ b/src/exchange/afl-tests/id:001019,src:000003,op:ext_AO,pos:90,+cov
diff --git a/src/mint/afl-tests/id:001020,src:000003,op:ext_AO,pos:101,+cov b/src/exchange/afl-tests/id:001020,src:000003,op:ext_AO,pos:101,+cov
index 3db93cc4b..3db93cc4b 100644
--- a/src/mint/afl-tests/id:001020,src:000003,op:ext_AO,pos:101,+cov
+++ b/src/exchange/afl-tests/id:001020,src:000003,op:ext_AO,pos:101,+cov
diff --git a/src/mint/afl-tests/id:001021,src:000003,op:ext_AO,pos:102,+cov b/src/exchange/afl-tests/id:001021,src:000003,op:ext_AO,pos:102,+cov
index b1fc45065..b1fc45065 100644
--- a/src/mint/afl-tests/id:001021,src:000003,op:ext_AO,pos:102,+cov
+++ b/src/exchange/afl-tests/id:001021,src:000003,op:ext_AO,pos:102,+cov
diff --git a/src/mint/afl-tests/id:001022,src:000003,op:ext_AO,pos:103,+cov b/src/exchange/afl-tests/id:001022,src:000003,op:ext_AO,pos:103,+cov
index 352cf41a6..352cf41a6 100644
--- a/src/mint/afl-tests/id:001022,src:000003,op:ext_AO,pos:103,+cov
+++ b/src/exchange/afl-tests/id:001022,src:000003,op:ext_AO,pos:103,+cov
diff --git a/src/mint/afl-tests/id:001023,src:000003,op:ext_AO,pos:106,+cov b/src/exchange/afl-tests/id:001023,src:000003,op:ext_AO,pos:106,+cov
index fbb8a9c07..fbb8a9c07 100644
--- a/src/mint/afl-tests/id:001023,src:000003,op:ext_AO,pos:106,+cov
+++ b/src/exchange/afl-tests/id:001023,src:000003,op:ext_AO,pos:106,+cov
diff --git a/src/mint/afl-tests/id:001024,src:000003,op:ext_AO,pos:107,+cov b/src/exchange/afl-tests/id:001024,src:000003,op:ext_AO,pos:107,+cov
index d79674087..d79674087 100644
--- a/src/mint/afl-tests/id:001024,src:000003,op:ext_AO,pos:107,+cov
+++ b/src/exchange/afl-tests/id:001024,src:000003,op:ext_AO,pos:107,+cov
diff --git a/src/mint/afl-tests/id:001025,src:000003,op:ext_AO,pos:109,+cov b/src/exchange/afl-tests/id:001025,src:000003,op:ext_AO,pos:109,+cov
index b00805e0a..b00805e0a 100644
--- a/src/mint/afl-tests/id:001025,src:000003,op:ext_AO,pos:109,+cov
+++ b/src/exchange/afl-tests/id:001025,src:000003,op:ext_AO,pos:109,+cov
diff --git a/src/mint/afl-tests/id:001026,src:000003,op:ext_AO,pos:109,+cov b/src/exchange/afl-tests/id:001026,src:000003,op:ext_AO,pos:109,+cov
index 98f6e7364..98f6e7364 100644
--- a/src/mint/afl-tests/id:001026,src:000003,op:ext_AO,pos:109,+cov
+++ b/src/exchange/afl-tests/id:001026,src:000003,op:ext_AO,pos:109,+cov
diff --git a/src/mint/afl-tests/id:001027,src:000003,op:ext_AO,pos:113,+cov b/src/exchange/afl-tests/id:001027,src:000003,op:ext_AO,pos:113,+cov
index 47e9988bd..47e9988bd 100644
--- a/src/mint/afl-tests/id:001027,src:000003,op:ext_AO,pos:113,+cov
+++ b/src/exchange/afl-tests/id:001027,src:000003,op:ext_AO,pos:113,+cov
diff --git a/src/mint/afl-tests/id:001028,src:000003,op:ext_AO,pos:117,+cov b/src/exchange/afl-tests/id:001028,src:000003,op:ext_AO,pos:117,+cov
index 251c8c161..251c8c161 100644
--- a/src/mint/afl-tests/id:001028,src:000003,op:ext_AO,pos:117,+cov
+++ b/src/exchange/afl-tests/id:001028,src:000003,op:ext_AO,pos:117,+cov
diff --git a/src/mint/afl-tests/id:001029,src:000003,op:ext_AO,pos:122,+cov b/src/exchange/afl-tests/id:001029,src:000003,op:ext_AO,pos:122,+cov
index 8b94c6afb..8b94c6afb 100644
--- a/src/mint/afl-tests/id:001029,src:000003,op:ext_AO,pos:122,+cov
+++ b/src/exchange/afl-tests/id:001029,src:000003,op:ext_AO,pos:122,+cov
diff --git a/src/mint/afl-tests/id:001030,src:000003,op:ext_AO,pos:122,+cov b/src/exchange/afl-tests/id:001030,src:000003,op:ext_AO,pos:122,+cov
index ea6fe6803..ea6fe6803 100644
--- a/src/mint/afl-tests/id:001030,src:000003,op:ext_AO,pos:122,+cov
+++ b/src/exchange/afl-tests/id:001030,src:000003,op:ext_AO,pos:122,+cov
diff --git a/src/mint/afl-tests/id:001031,src:000003,op:ext_AO,pos:124,+cov b/src/exchange/afl-tests/id:001031,src:000003,op:ext_AO,pos:124,+cov
index ab94cd297..ab94cd297 100644
--- a/src/mint/afl-tests/id:001031,src:000003,op:ext_AO,pos:124,+cov
+++ b/src/exchange/afl-tests/id:001031,src:000003,op:ext_AO,pos:124,+cov
diff --git a/src/mint/afl-tests/id:001032,src:000003,op:ext_AO,pos:125,+cov b/src/exchange/afl-tests/id:001032,src:000003,op:ext_AO,pos:125,+cov
index a0ec1a313..a0ec1a313 100644
--- a/src/mint/afl-tests/id:001032,src:000003,op:ext_AO,pos:125,+cov
+++ b/src/exchange/afl-tests/id:001032,src:000003,op:ext_AO,pos:125,+cov
diff --git a/src/mint/afl-tests/id:001033,src:000003,op:ext_AO,pos:125,+cov b/src/exchange/afl-tests/id:001033,src:000003,op:ext_AO,pos:125,+cov
index 05c77316c..05c77316c 100644
--- a/src/mint/afl-tests/id:001033,src:000003,op:ext_AO,pos:125,+cov
+++ b/src/exchange/afl-tests/id:001033,src:000003,op:ext_AO,pos:125,+cov
diff --git a/src/mint/afl-tests/id:001034,src:000003,op:ext_AO,pos:126,+cov b/src/exchange/afl-tests/id:001034,src:000003,op:ext_AO,pos:126,+cov
index d04efabb1..d04efabb1 100644
--- a/src/mint/afl-tests/id:001034,src:000003,op:ext_AO,pos:126,+cov
+++ b/src/exchange/afl-tests/id:001034,src:000003,op:ext_AO,pos:126,+cov
diff --git a/src/mint/afl-tests/id:001035,src:000003,op:ext_AO,pos:126,+cov b/src/exchange/afl-tests/id:001035,src:000003,op:ext_AO,pos:126,+cov
index bded4fb2a..bded4fb2a 100644
--- a/src/mint/afl-tests/id:001035,src:000003,op:ext_AO,pos:126,+cov
+++ b/src/exchange/afl-tests/id:001035,src:000003,op:ext_AO,pos:126,+cov
diff --git a/src/mint/afl-tests/id:001036,src:000003,op:ext_AO,pos:129,+cov b/src/exchange/afl-tests/id:001036,src:000003,op:ext_AO,pos:129,+cov
index 92b517930..92b517930 100644
--- a/src/mint/afl-tests/id:001036,src:000003,op:ext_AO,pos:129,+cov
+++ b/src/exchange/afl-tests/id:001036,src:000003,op:ext_AO,pos:129,+cov
diff --git a/src/mint/afl-tests/id:001037,src:000003,op:ext_AO,pos:129,+cov b/src/exchange/afl-tests/id:001037,src:000003,op:ext_AO,pos:129,+cov
index 7c4b1d56d..7c4b1d56d 100644
--- a/src/mint/afl-tests/id:001037,src:000003,op:ext_AO,pos:129,+cov
+++ b/src/exchange/afl-tests/id:001037,src:000003,op:ext_AO,pos:129,+cov
diff --git a/src/mint/afl-tests/id:001038,src:000003,op:ext_AO,pos:130,+cov b/src/exchange/afl-tests/id:001038,src:000003,op:ext_AO,pos:130,+cov
index 7612033f2..7612033f2 100644
--- a/src/mint/afl-tests/id:001038,src:000003,op:ext_AO,pos:130,+cov
+++ b/src/exchange/afl-tests/id:001038,src:000003,op:ext_AO,pos:130,+cov
diff --git a/src/mint/afl-tests/id:001039,src:000003,op:ext_AO,pos:135,+cov b/src/exchange/afl-tests/id:001039,src:000003,op:ext_AO,pos:135,+cov
index 912ea4ccc..912ea4ccc 100644
--- a/src/mint/afl-tests/id:001039,src:000003,op:ext_AO,pos:135,+cov
+++ b/src/exchange/afl-tests/id:001039,src:000003,op:ext_AO,pos:135,+cov
diff --git a/src/mint/afl-tests/id:001040,src:000003,op:ext_AO,pos:136,+cov b/src/exchange/afl-tests/id:001040,src:000003,op:ext_AO,pos:136,+cov
index 158cb6c82..158cb6c82 100644
--- a/src/mint/afl-tests/id:001040,src:000003,op:ext_AO,pos:136,+cov
+++ b/src/exchange/afl-tests/id:001040,src:000003,op:ext_AO,pos:136,+cov
diff --git a/src/mint/afl-tests/id:001041,src:000003,op:ext_AO,pos:140,+cov b/src/exchange/afl-tests/id:001041,src:000003,op:ext_AO,pos:140,+cov
index 71eef086c..71eef086c 100644
--- a/src/mint/afl-tests/id:001041,src:000003,op:ext_AO,pos:140,+cov
+++ b/src/exchange/afl-tests/id:001041,src:000003,op:ext_AO,pos:140,+cov
diff --git a/src/mint/afl-tests/id:001042,src:000003,op:ext_AO,pos:142,+cov b/src/exchange/afl-tests/id:001042,src:000003,op:ext_AO,pos:142,+cov
index 09df64a4c..09df64a4c 100644
--- a/src/mint/afl-tests/id:001042,src:000003,op:ext_AO,pos:142,+cov
+++ b/src/exchange/afl-tests/id:001042,src:000003,op:ext_AO,pos:142,+cov
diff --git a/src/mint/afl-tests/id:001043,src:000003,op:ext_AO,pos:142,+cov b/src/exchange/afl-tests/id:001043,src:000003,op:ext_AO,pos:142,+cov
index 9b048859f..9b048859f 100644
--- a/src/mint/afl-tests/id:001043,src:000003,op:ext_AO,pos:142,+cov
+++ b/src/exchange/afl-tests/id:001043,src:000003,op:ext_AO,pos:142,+cov
diff --git a/src/mint/afl-tests/id:001044,src:000003,op:ext_AO,pos:145,+cov b/src/exchange/afl-tests/id:001044,src:000003,op:ext_AO,pos:145,+cov
index 0151fb911..0151fb911 100644
--- a/src/mint/afl-tests/id:001044,src:000003,op:ext_AO,pos:145,+cov
+++ b/src/exchange/afl-tests/id:001044,src:000003,op:ext_AO,pos:145,+cov
diff --git a/src/mint/afl-tests/id:001045,src:000003,op:ext_AO,pos:147,+cov b/src/exchange/afl-tests/id:001045,src:000003,op:ext_AO,pos:147,+cov
index 159de8226..159de8226 100644
--- a/src/mint/afl-tests/id:001045,src:000003,op:ext_AO,pos:147,+cov
+++ b/src/exchange/afl-tests/id:001045,src:000003,op:ext_AO,pos:147,+cov
diff --git a/src/mint/afl-tests/id:001046,src:000003,op:ext_AO,pos:149,+cov b/src/exchange/afl-tests/id:001046,src:000003,op:ext_AO,pos:149,+cov
index 2ffa1917a..2ffa1917a 100644
--- a/src/mint/afl-tests/id:001046,src:000003,op:ext_AO,pos:149,+cov
+++ b/src/exchange/afl-tests/id:001046,src:000003,op:ext_AO,pos:149,+cov
diff --git a/src/mint/afl-tests/id:001047,src:000004,op:flip1,pos:0,+cov b/src/exchange/afl-tests/id:001047,src:000004,op:flip1,pos:0,+cov
index d13a75cb5..d13a75cb5 100644
--- a/src/mint/afl-tests/id:001047,src:000004,op:flip1,pos:0,+cov
+++ b/src/exchange/afl-tests/id:001047,src:000004,op:flip1,pos:0,+cov
diff --git a/src/mint/afl-tests/id:001048,src:000004,op:flip1,pos:4,+cov b/src/exchange/afl-tests/id:001048,src:000004,op:flip1,pos:4,+cov
index fa5707b8c..fa5707b8c 100644
--- a/src/mint/afl-tests/id:001048,src:000004,op:flip1,pos:4,+cov
+++ b/src/exchange/afl-tests/id:001048,src:000004,op:flip1,pos:4,+cov
diff --git a/src/mint/afl-tests/id:001049,src:000004,op:flip1,pos:4 b/src/exchange/afl-tests/id:001049,src:000004,op:flip1,pos:4
index 596e43e39..596e43e39 100644
--- a/src/mint/afl-tests/id:001049,src:000004,op:flip1,pos:4
+++ b/src/exchange/afl-tests/id:001049,src:000004,op:flip1,pos:4
diff --git a/src/mint/afl-tests/id:001050,src:000004,op:flip1,pos:18 b/src/exchange/afl-tests/id:001050,src:000004,op:flip1,pos:18
index 596f01e21..596f01e21 100644
--- a/src/mint/afl-tests/id:001050,src:000004,op:flip1,pos:18
+++ b/src/exchange/afl-tests/id:001050,src:000004,op:flip1,pos:18
diff --git a/src/mint/afl-tests/id:001051,src:000004,op:flip1,pos:55,+cov b/src/exchange/afl-tests/id:001051,src:000004,op:flip1,pos:55,+cov
index 65cd9fc29..65cd9fc29 100644
--- a/src/mint/afl-tests/id:001051,src:000004,op:flip1,pos:55,+cov
+++ b/src/exchange/afl-tests/id:001051,src:000004,op:flip1,pos:55,+cov
diff --git a/src/mint/afl-tests/id:001052,src:000004,op:flip1,pos:59 b/src/exchange/afl-tests/id:001052,src:000004,op:flip1,pos:59
index 22f1df82e..22f1df82e 100644
--- a/src/mint/afl-tests/id:001052,src:000004,op:flip1,pos:59
+++ b/src/exchange/afl-tests/id:001052,src:000004,op:flip1,pos:59
diff --git a/src/mint/afl-tests/id:001053,src:000004,op:flip1,pos:87,+cov b/src/exchange/afl-tests/id:001053,src:000004,op:flip1,pos:87,+cov
index ce06ef765..ce06ef765 100644
--- a/src/mint/afl-tests/id:001053,src:000004,op:flip1,pos:87,+cov
+++ b/src/exchange/afl-tests/id:001053,src:000004,op:flip1,pos:87,+cov
diff --git a/src/mint/afl-tests/id:001054,src:000004,op:flip1,pos:89 b/src/exchange/afl-tests/id:001054,src:000004,op:flip1,pos:89
index b09891805..b09891805 100644
--- a/src/mint/afl-tests/id:001054,src:000004,op:flip1,pos:89
+++ b/src/exchange/afl-tests/id:001054,src:000004,op:flip1,pos:89
diff --git a/src/mint/afl-tests/id:001055,src:000004,op:flip1,pos:106,+cov b/src/exchange/afl-tests/id:001055,src:000004,op:flip1,pos:106,+cov
index 337ece077..337ece077 100644
--- a/src/mint/afl-tests/id:001055,src:000004,op:flip1,pos:106,+cov
+++ b/src/exchange/afl-tests/id:001055,src:000004,op:flip1,pos:106,+cov
diff --git a/src/mint/afl-tests/id:001056,src:000004,op:flip1,pos:108 b/src/exchange/afl-tests/id:001056,src:000004,op:flip1,pos:108
index 5b908c709..5b908c709 100644
--- a/src/mint/afl-tests/id:001056,src:000004,op:flip1,pos:108
+++ b/src/exchange/afl-tests/id:001056,src:000004,op:flip1,pos:108
diff --git a/src/mint/afl-tests/id:001057,src:000004,op:flip1,pos:108 b/src/exchange/afl-tests/id:001057,src:000004,op:flip1,pos:108
index 340414e5d..340414e5d 100644
--- a/src/mint/afl-tests/id:001057,src:000004,op:flip1,pos:108
+++ b/src/exchange/afl-tests/id:001057,src:000004,op:flip1,pos:108
diff --git a/src/mint/afl-tests/id:001058,src:000004,op:flip1,pos:110 b/src/exchange/afl-tests/id:001058,src:000004,op:flip1,pos:110
index 77f342a2d..77f342a2d 100644
--- a/src/mint/afl-tests/id:001058,src:000004,op:flip1,pos:110
+++ b/src/exchange/afl-tests/id:001058,src:000004,op:flip1,pos:110
diff --git a/src/mint/afl-tests/id:001059,src:000004,op:flip1,pos:111,+cov b/src/exchange/afl-tests/id:001059,src:000004,op:flip1,pos:111,+cov
index 1f1c1c903..1f1c1c903 100644
--- a/src/mint/afl-tests/id:001059,src:000004,op:flip1,pos:111,+cov
+++ b/src/exchange/afl-tests/id:001059,src:000004,op:flip1,pos:111,+cov
diff --git a/src/mint/afl-tests/id:001060,src:000004,op:flip1,pos:112 b/src/exchange/afl-tests/id:001060,src:000004,op:flip1,pos:112
index 877f3c6f2..877f3c6f2 100644
--- a/src/mint/afl-tests/id:001060,src:000004,op:flip1,pos:112
+++ b/src/exchange/afl-tests/id:001060,src:000004,op:flip1,pos:112
diff --git a/src/mint/afl-tests/id:001061,src:000004,op:flip1,pos:134,+cov b/src/exchange/afl-tests/id:001061,src:000004,op:flip1,pos:134,+cov
index 30c8d756e..30c8d756e 100644
--- a/src/mint/afl-tests/id:001061,src:000004,op:flip1,pos:134,+cov
+++ b/src/exchange/afl-tests/id:001061,src:000004,op:flip1,pos:134,+cov
diff --git a/src/mint/afl-tests/id:001062,src:000004,op:flip1,pos:138,+cov b/src/exchange/afl-tests/id:001062,src:000004,op:flip1,pos:138,+cov
index d70e2f137..d70e2f137 100644
--- a/src/mint/afl-tests/id:001062,src:000004,op:flip1,pos:138,+cov
+++ b/src/exchange/afl-tests/id:001062,src:000004,op:flip1,pos:138,+cov
diff --git a/src/mint/afl-tests/id:001063,src:000004,op:flip1,pos:152,+cov b/src/exchange/afl-tests/id:001063,src:000004,op:flip1,pos:152,+cov
index 05c492917..05c492917 100644
--- a/src/mint/afl-tests/id:001063,src:000004,op:flip1,pos:152,+cov
+++ b/src/exchange/afl-tests/id:001063,src:000004,op:flip1,pos:152,+cov
diff --git a/src/mint/afl-tests/id:001064,src:000004,op:flip1,pos:154,+cov b/src/exchange/afl-tests/id:001064,src:000004,op:flip1,pos:154,+cov
index 9a4afa514..9a4afa514 100644
--- a/src/mint/afl-tests/id:001064,src:000004,op:flip1,pos:154,+cov
+++ b/src/exchange/afl-tests/id:001064,src:000004,op:flip1,pos:154,+cov
diff --git a/src/mint/afl-tests/id:001065,src:000004,op:flip1,pos:475,+cov b/src/exchange/afl-tests/id:001065,src:000004,op:flip1,pos:475,+cov
index cf3ab362e..cf3ab362e 100644
--- a/src/mint/afl-tests/id:001065,src:000004,op:flip1,pos:475,+cov
+++ b/src/exchange/afl-tests/id:001065,src:000004,op:flip1,pos:475,+cov
diff --git a/src/mint/afl-tests/id:001066,src:000004,op:flip1,pos:651,+cov b/src/exchange/afl-tests/id:001066,src:000004,op:flip1,pos:651,+cov
index 3957890d9..3957890d9 100644
--- a/src/mint/afl-tests/id:001066,src:000004,op:flip1,pos:651,+cov
+++ b/src/exchange/afl-tests/id:001066,src:000004,op:flip1,pos:651,+cov
diff --git a/src/mint/afl-tests/id:001067,src:000004,op:flip1,pos:783,+cov b/src/exchange/afl-tests/id:001067,src:000004,op:flip1,pos:783,+cov
index 0fc87d10b..0fc87d10b 100644
--- a/src/mint/afl-tests/id:001067,src:000004,op:flip1,pos:783,+cov
+++ b/src/exchange/afl-tests/id:001067,src:000004,op:flip1,pos:783,+cov
diff --git a/src/mint/afl-tests/id:001068,src:000004,op:flip1,pos:1150 b/src/exchange/afl-tests/id:001068,src:000004,op:flip1,pos:1150
index 695b545cb..695b545cb 100644
--- a/src/mint/afl-tests/id:001068,src:000004,op:flip1,pos:1150
+++ b/src/exchange/afl-tests/id:001068,src:000004,op:flip1,pos:1150
diff --git a/src/mint/afl-tests/id:001069,src:000004,op:flip1,pos:1278,+cov b/src/exchange/afl-tests/id:001069,src:000004,op:flip1,pos:1278,+cov
index 38455bb28..38455bb28 100644
--- a/src/mint/afl-tests/id:001069,src:000004,op:flip1,pos:1278,+cov
+++ b/src/exchange/afl-tests/id:001069,src:000004,op:flip1,pos:1278,+cov
diff --git a/src/mint/afl-tests/id:001070,src:000004,op:flip1,pos:1649 b/src/exchange/afl-tests/id:001070,src:000004,op:flip1,pos:1649
index 310494eff..310494eff 100644
--- a/src/mint/afl-tests/id:001070,src:000004,op:flip1,pos:1649
+++ b/src/exchange/afl-tests/id:001070,src:000004,op:flip1,pos:1649
diff --git a/src/mint/afl-tests/id:001071,src:000004,op:flip1,pos:1662,+cov b/src/exchange/afl-tests/id:001071,src:000004,op:flip1,pos:1662,+cov
index 6bedb8dc7..6bedb8dc7 100644
--- a/src/mint/afl-tests/id:001071,src:000004,op:flip1,pos:1662,+cov
+++ b/src/exchange/afl-tests/id:001071,src:000004,op:flip1,pos:1662,+cov
diff --git a/src/mint/afl-tests/id:001072,src:000004,op:flip1,pos:2148 b/src/exchange/afl-tests/id:001072,src:000004,op:flip1,pos:2148
index b18620069..b18620069 100644
--- a/src/mint/afl-tests/id:001072,src:000004,op:flip1,pos:2148
+++ b/src/exchange/afl-tests/id:001072,src:000004,op:flip1,pos:2148
diff --git a/src/mint/afl-tests/id:001073,src:000004,op:flip1,pos:2437,+cov b/src/exchange/afl-tests/id:001073,src:000004,op:flip1,pos:2437,+cov
index d0b7b7bfe..d0b7b7bfe 100644
--- a/src/mint/afl-tests/id:001073,src:000004,op:flip1,pos:2437,+cov
+++ b/src/exchange/afl-tests/id:001073,src:000004,op:flip1,pos:2437,+cov
diff --git a/src/mint/afl-tests/id:001074,src:000004,op:flip1,pos:2647 b/src/exchange/afl-tests/id:001074,src:000004,op:flip1,pos:2647
index 1d9852284..1d9852284 100644
--- a/src/mint/afl-tests/id:001074,src:000004,op:flip1,pos:2647
+++ b/src/exchange/afl-tests/id:001074,src:000004,op:flip1,pos:2647
diff --git a/src/mint/afl-tests/id:001075,src:000004,op:flip1,pos:3146 b/src/exchange/afl-tests/id:001075,src:000004,op:flip1,pos:3146
index 1035c4053..1035c4053 100644
--- a/src/mint/afl-tests/id:001075,src:000004,op:flip1,pos:3146
+++ b/src/exchange/afl-tests/id:001075,src:000004,op:flip1,pos:3146
diff --git a/src/mint/afl-tests/id:001076,src:000004,op:flip1,pos:3205,+cov b/src/exchange/afl-tests/id:001076,src:000004,op:flip1,pos:3205,+cov
index 63edd3a7c..63edd3a7c 100644
--- a/src/mint/afl-tests/id:001076,src:000004,op:flip1,pos:3205,+cov
+++ b/src/exchange/afl-tests/id:001076,src:000004,op:flip1,pos:3205,+cov
diff --git a/src/mint/afl-tests/id:001077,src:000004,op:flip1,pos:3645 b/src/exchange/afl-tests/id:001077,src:000004,op:flip1,pos:3645
index d404fd872..d404fd872 100644
--- a/src/mint/afl-tests/id:001077,src:000004,op:flip1,pos:3645
+++ b/src/exchange/afl-tests/id:001077,src:000004,op:flip1,pos:3645
diff --git a/src/mint/afl-tests/id:001078,src:000004,op:flip1,pos:3980,+cov b/src/exchange/afl-tests/id:001078,src:000004,op:flip1,pos:3980,+cov
index e93f23838..e93f23838 100644
--- a/src/mint/afl-tests/id:001078,src:000004,op:flip1,pos:3980,+cov
+++ b/src/exchange/afl-tests/id:001078,src:000004,op:flip1,pos:3980,+cov
diff --git a/src/mint/afl-tests/id:001079,src:000004,op:flip1,pos:4144 b/src/exchange/afl-tests/id:001079,src:000004,op:flip1,pos:4144
index 7d1b205dc..7d1b205dc 100644
--- a/src/mint/afl-tests/id:001079,src:000004,op:flip1,pos:4144
+++ b/src/exchange/afl-tests/id:001079,src:000004,op:flip1,pos:4144
diff --git a/src/mint/afl-tests/id:001080,src:000004,op:flip1,pos:4198,+cov b/src/exchange/afl-tests/id:001080,src:000004,op:flip1,pos:4198,+cov
index 75827a87c..75827a87c 100644
--- a/src/mint/afl-tests/id:001080,src:000004,op:flip1,pos:4198,+cov
+++ b/src/exchange/afl-tests/id:001080,src:000004,op:flip1,pos:4198,+cov
diff --git a/src/mint/afl-tests/id:001081,src:000004,op:flip1,pos:4249,+cov b/src/exchange/afl-tests/id:001081,src:000004,op:flip1,pos:4249,+cov
index 1a7dcd0eb..1a7dcd0eb 100644
--- a/src/mint/afl-tests/id:001081,src:000004,op:flip1,pos:4249,+cov
+++ b/src/exchange/afl-tests/id:001081,src:000004,op:flip1,pos:4249,+cov
diff --git a/src/mint/afl-tests/id:001082,src:000004,op:flip1,pos:4291,+cov b/src/exchange/afl-tests/id:001082,src:000004,op:flip1,pos:4291,+cov
index 42705b2be..42705b2be 100644
--- a/src/mint/afl-tests/id:001082,src:000004,op:flip1,pos:4291,+cov
+++ b/src/exchange/afl-tests/id:001082,src:000004,op:flip1,pos:4291,+cov
diff --git a/src/mint/afl-tests/id:001083,src:000004,op:flip1,pos:4673,+cov b/src/exchange/afl-tests/id:001083,src:000004,op:flip1,pos:4673,+cov
index 1c7d16a8b..1c7d16a8b 100644
--- a/src/mint/afl-tests/id:001083,src:000004,op:flip1,pos:4673,+cov
+++ b/src/exchange/afl-tests/id:001083,src:000004,op:flip1,pos:4673,+cov
diff --git a/src/mint/afl-tests/id:001084,src:000004,op:flip1,pos:5206,+cov b/src/exchange/afl-tests/id:001084,src:000004,op:flip1,pos:5206,+cov
index 98e29de85..98e29de85 100644
--- a/src/mint/afl-tests/id:001084,src:000004,op:flip1,pos:5206,+cov
+++ b/src/exchange/afl-tests/id:001084,src:000004,op:flip1,pos:5206,+cov
diff --git a/src/mint/afl-tests/id:001085,src:000004,op:flip1,pos:5361,+cov b/src/exchange/afl-tests/id:001085,src:000004,op:flip1,pos:5361,+cov
index 1afbaeb36..1afbaeb36 100644
--- a/src/mint/afl-tests/id:001085,src:000004,op:flip1,pos:5361,+cov
+++ b/src/exchange/afl-tests/id:001085,src:000004,op:flip1,pos:5361,+cov
diff --git a/src/mint/afl-tests/id:001086,src:000004,op:flip1,pos:5362 b/src/exchange/afl-tests/id:001086,src:000004,op:flip1,pos:5362
index 853498b32..853498b32 100644
--- a/src/mint/afl-tests/id:001086,src:000004,op:flip1,pos:5362
+++ b/src/exchange/afl-tests/id:001086,src:000004,op:flip1,pos:5362
diff --git a/src/mint/afl-tests/id:001087,src:000004,op:flip1,pos:5507,+cov b/src/exchange/afl-tests/id:001087,src:000004,op:flip1,pos:5507,+cov
index 5b859f6a5..5b859f6a5 100644
--- a/src/mint/afl-tests/id:001087,src:000004,op:flip1,pos:5507,+cov
+++ b/src/exchange/afl-tests/id:001087,src:000004,op:flip1,pos:5507,+cov
diff --git a/src/mint/afl-tests/id:001088,src:000004,op:flip1,pos:6639 b/src/exchange/afl-tests/id:001088,src:000004,op:flip1,pos:6639
index c30ed6671..c30ed6671 100644
--- a/src/mint/afl-tests/id:001088,src:000004,op:flip1,pos:6639
+++ b/src/exchange/afl-tests/id:001088,src:000004,op:flip1,pos:6639
diff --git a/src/mint/afl-tests/id:001089,src:000004,op:flip1,pos:7138 b/src/exchange/afl-tests/id:001089,src:000004,op:flip1,pos:7138
index c05262a60..c05262a60 100644
--- a/src/mint/afl-tests/id:001089,src:000004,op:flip1,pos:7138
+++ b/src/exchange/afl-tests/id:001089,src:000004,op:flip1,pos:7138
diff --git a/src/mint/afl-tests/id:001090,src:000004,op:flip1,pos:8027,+cov b/src/exchange/afl-tests/id:001090,src:000004,op:flip1,pos:8027,+cov
index f5c311ccb..f5c311ccb 100644
--- a/src/mint/afl-tests/id:001090,src:000004,op:flip1,pos:8027,+cov
+++ b/src/exchange/afl-tests/id:001090,src:000004,op:flip1,pos:8027,+cov
diff --git a/src/mint/afl-tests/id:001091,src:000004,op:flip1,pos:8136 b/src/exchange/afl-tests/id:001091,src:000004,op:flip1,pos:8136
index 63c68a5b1..63c68a5b1 100644
--- a/src/mint/afl-tests/id:001091,src:000004,op:flip1,pos:8136
+++ b/src/exchange/afl-tests/id:001091,src:000004,op:flip1,pos:8136
diff --git a/src/mint/afl-tests/id:001092,src:000004,op:flip1,pos:8636 b/src/exchange/afl-tests/id:001092,src:000004,op:flip1,pos:8636
index ed3eb4a01..ed3eb4a01 100644
--- a/src/mint/afl-tests/id:001092,src:000004,op:flip1,pos:8636
+++ b/src/exchange/afl-tests/id:001092,src:000004,op:flip1,pos:8636
diff --git a/src/mint/afl-tests/id:001093,src:000004,op:flip1,pos:8655,+cov b/src/exchange/afl-tests/id:001093,src:000004,op:flip1,pos:8655,+cov
index 32cd75712..32cd75712 100644
--- a/src/mint/afl-tests/id:001093,src:000004,op:flip1,pos:8655,+cov
+++ b/src/exchange/afl-tests/id:001093,src:000004,op:flip1,pos:8655,+cov
diff --git a/src/mint/afl-tests/id:001094,src:000004,op:flip1,pos:8712 b/src/exchange/afl-tests/id:001094,src:000004,op:flip1,pos:8712
index dd97c6ac7..dd97c6ac7 100644
--- a/src/mint/afl-tests/id:001094,src:000004,op:flip1,pos:8712
+++ b/src/exchange/afl-tests/id:001094,src:000004,op:flip1,pos:8712
diff --git a/src/mint/afl-tests/id:001095,src:000004,op:flip1,pos:8768 b/src/exchange/afl-tests/id:001095,src:000004,op:flip1,pos:8768
index 7ef20f5f7..7ef20f5f7 100644
--- a/src/mint/afl-tests/id:001095,src:000004,op:flip1,pos:8768
+++ b/src/exchange/afl-tests/id:001095,src:000004,op:flip1,pos:8768
diff --git a/src/mint/afl-tests/id:001096,src:000004,op:flip1,pos:8825 b/src/exchange/afl-tests/id:001096,src:000004,op:flip1,pos:8825
index cd01f87b3..cd01f87b3 100644
--- a/src/mint/afl-tests/id:001096,src:000004,op:flip1,pos:8825
+++ b/src/exchange/afl-tests/id:001096,src:000004,op:flip1,pos:8825
diff --git a/src/mint/afl-tests/id:001097,src:000004,op:flip1,pos:8840,+cov b/src/exchange/afl-tests/id:001097,src:000004,op:flip1,pos:8840,+cov
index 2c1d2d546..2c1d2d546 100644
--- a/src/mint/afl-tests/id:001097,src:000004,op:flip1,pos:8840,+cov
+++ b/src/exchange/afl-tests/id:001097,src:000004,op:flip1,pos:8840,+cov
diff --git a/src/mint/afl-tests/id:001098,src:000004,op:flip1,pos:8869,+cov b/src/exchange/afl-tests/id:001098,src:000004,op:flip1,pos:8869,+cov
index 05c296667..05c296667 100644
--- a/src/mint/afl-tests/id:001098,src:000004,op:flip1,pos:8869,+cov
+++ b/src/exchange/afl-tests/id:001098,src:000004,op:flip1,pos:8869,+cov
diff --git a/src/mint/afl-tests/id:001099,src:000004,op:flip1,pos:8882,+cov b/src/exchange/afl-tests/id:001099,src:000004,op:flip1,pos:8882,+cov
index f01f684ee..f01f684ee 100644
--- a/src/mint/afl-tests/id:001099,src:000004,op:flip1,pos:8882,+cov
+++ b/src/exchange/afl-tests/id:001099,src:000004,op:flip1,pos:8882,+cov
diff --git a/src/mint/afl-tests/id:001100,src:000004,op:flip1,pos:8910,+cov b/src/exchange/afl-tests/id:001100,src:000004,op:flip1,pos:8910,+cov
index 0e7f71998..0e7f71998 100644
--- a/src/mint/afl-tests/id:001100,src:000004,op:flip1,pos:8910,+cov
+++ b/src/exchange/afl-tests/id:001100,src:000004,op:flip1,pos:8910,+cov
diff --git a/src/mint/afl-tests/id:001101,src:000004,op:flip1,pos:9001,+cov b/src/exchange/afl-tests/id:001101,src:000004,op:flip1,pos:9001,+cov
index 3caaafdad..3caaafdad 100644
--- a/src/mint/afl-tests/id:001101,src:000004,op:flip1,pos:9001,+cov
+++ b/src/exchange/afl-tests/id:001101,src:000004,op:flip1,pos:9001,+cov
diff --git a/src/mint/afl-tests/id:001102,src:000004,op:flip1,pos:9584,+cov b/src/exchange/afl-tests/id:001102,src:000004,op:flip1,pos:9584,+cov
index 8362c9819..8362c9819 100644
--- a/src/mint/afl-tests/id:001102,src:000004,op:flip1,pos:9584,+cov
+++ b/src/exchange/afl-tests/id:001102,src:000004,op:flip1,pos:9584,+cov
diff --git a/src/mint/afl-tests/id:001103,src:000004,op:flip1,pos:9658,+cov b/src/exchange/afl-tests/id:001103,src:000004,op:flip1,pos:9658,+cov
index fdd838ccf..fdd838ccf 100644
--- a/src/mint/afl-tests/id:001103,src:000004,op:flip1,pos:9658,+cov
+++ b/src/exchange/afl-tests/id:001103,src:000004,op:flip1,pos:9658,+cov
diff --git a/src/mint/afl-tests/id:001104,src:000004,op:flip1,pos:9808,+cov b/src/exchange/afl-tests/id:001104,src:000004,op:flip1,pos:9808,+cov
index 7c078ab2e..7c078ab2e 100644
--- a/src/mint/afl-tests/id:001104,src:000004,op:flip1,pos:9808,+cov
+++ b/src/exchange/afl-tests/id:001104,src:000004,op:flip1,pos:9808,+cov
diff --git a/src/mint/afl-tests/id:001105,src:000004,op:flip1,pos:9954,+cov b/src/exchange/afl-tests/id:001105,src:000004,op:flip1,pos:9954,+cov
index 6e5a956d3..6e5a956d3 100644
--- a/src/mint/afl-tests/id:001105,src:000004,op:flip1,pos:9954,+cov
+++ b/src/exchange/afl-tests/id:001105,src:000004,op:flip1,pos:9954,+cov
diff --git a/src/mint/afl-tests/id:001106,src:000004,op:flip1,pos:10093,+cov b/src/exchange/afl-tests/id:001106,src:000004,op:flip1,pos:10093,+cov
index d306d0041..d306d0041 100644
--- a/src/mint/afl-tests/id:001106,src:000004,op:flip1,pos:10093,+cov
+++ b/src/exchange/afl-tests/id:001106,src:000004,op:flip1,pos:10093,+cov
diff --git a/src/mint/afl-tests/id:001107,src:000004,op:flip1,pos:10417 b/src/exchange/afl-tests/id:001107,src:000004,op:flip1,pos:10417
index c0e323631..c0e323631 100644
--- a/src/mint/afl-tests/id:001107,src:000004,op:flip1,pos:10417
+++ b/src/exchange/afl-tests/id:001107,src:000004,op:flip1,pos:10417
diff --git a/src/mint/afl-tests/id:001108,src:000004,op:flip1,pos:10430,+cov b/src/exchange/afl-tests/id:001108,src:000004,op:flip1,pos:10430,+cov
index 026431f36..026431f36 100644
--- a/src/mint/afl-tests/id:001108,src:000004,op:flip1,pos:10430,+cov
+++ b/src/exchange/afl-tests/id:001108,src:000004,op:flip1,pos:10430,+cov
diff --git a/src/mint/afl-tests/id:001109,src:000004,op:flip1,pos:10639 b/src/exchange/afl-tests/id:001109,src:000004,op:flip1,pos:10639
index 73fd35c1b..73fd35c1b 100644
--- a/src/mint/afl-tests/id:001109,src:000004,op:flip1,pos:10639
+++ b/src/exchange/afl-tests/id:001109,src:000004,op:flip1,pos:10639
diff --git a/src/mint/afl-tests/id:001110,src:000004,op:flip1,pos:10846 b/src/exchange/afl-tests/id:001110,src:000004,op:flip1,pos:10846
index cf9c6fa7d..cf9c6fa7d 100644
--- a/src/mint/afl-tests/id:001110,src:000004,op:flip1,pos:10846
+++ b/src/exchange/afl-tests/id:001110,src:000004,op:flip1,pos:10846
diff --git a/src/mint/afl-tests/id:001111,src:000004,op:flip1,pos:10957,+cov b/src/exchange/afl-tests/id:001111,src:000004,op:flip1,pos:10957,+cov
index 720af50ab..720af50ab 100644
--- a/src/mint/afl-tests/id:001111,src:000004,op:flip1,pos:10957,+cov
+++ b/src/exchange/afl-tests/id:001111,src:000004,op:flip1,pos:10957,+cov
diff --git a/src/mint/afl-tests/id:001112,src:000004,op:flip1,pos:11055 b/src/exchange/afl-tests/id:001112,src:000004,op:flip1,pos:11055
index 8d61f7536..8d61f7536 100644
--- a/src/mint/afl-tests/id:001112,src:000004,op:flip1,pos:11055
+++ b/src/exchange/afl-tests/id:001112,src:000004,op:flip1,pos:11055
diff --git a/src/mint/afl-tests/id:001113,src:000004,op:flip1,pos:11176,+cov b/src/exchange/afl-tests/id:001113,src:000004,op:flip1,pos:11176,+cov
index a967cf97f..a967cf97f 100644
--- a/src/mint/afl-tests/id:001113,src:000004,op:flip1,pos:11176,+cov
+++ b/src/exchange/afl-tests/id:001113,src:000004,op:flip1,pos:11176,+cov
diff --git a/src/mint/afl-tests/id:001114,src:000004,op:flip1,pos:11262 b/src/exchange/afl-tests/id:001114,src:000004,op:flip1,pos:11262
index 96039612c..96039612c 100644
--- a/src/mint/afl-tests/id:001114,src:000004,op:flip1,pos:11262
+++ b/src/exchange/afl-tests/id:001114,src:000004,op:flip1,pos:11262
diff --git a/src/mint/afl-tests/id:001115,src:000004,op:flip1,pos:11471 b/src/exchange/afl-tests/id:001115,src:000004,op:flip1,pos:11471
index 1ff255bc3..1ff255bc3 100644
--- a/src/mint/afl-tests/id:001115,src:000004,op:flip1,pos:11471
+++ b/src/exchange/afl-tests/id:001115,src:000004,op:flip1,pos:11471
diff --git a/src/mint/afl-tests/id:001116,src:000004,op:flip1,pos:11887 b/src/exchange/afl-tests/id:001116,src:000004,op:flip1,pos:11887
index 050fb05fb..050fb05fb 100644
--- a/src/mint/afl-tests/id:001116,src:000004,op:flip1,pos:11887
+++ b/src/exchange/afl-tests/id:001116,src:000004,op:flip1,pos:11887
diff --git a/src/mint/afl-tests/id:001117,src:000004,op:flip1,pos:11996,+cov b/src/exchange/afl-tests/id:001117,src:000004,op:flip1,pos:11996,+cov
index e699099e4..e699099e4 100644
--- a/src/mint/afl-tests/id:001117,src:000004,op:flip1,pos:11996,+cov
+++ b/src/exchange/afl-tests/id:001117,src:000004,op:flip1,pos:11996,+cov
diff --git a/src/mint/afl-tests/id:001118,src:000004,op:flip1,pos:12094 b/src/exchange/afl-tests/id:001118,src:000004,op:flip1,pos:12094
index e0e030e9c..e0e030e9c 100644
--- a/src/mint/afl-tests/id:001118,src:000004,op:flip1,pos:12094
+++ b/src/exchange/afl-tests/id:001118,src:000004,op:flip1,pos:12094
diff --git a/src/mint/afl-tests/id:001119,src:000004,op:flip1,pos:12302 b/src/exchange/afl-tests/id:001119,src:000004,op:flip1,pos:12302
index 9f75ab625..9f75ab625 100644
--- a/src/mint/afl-tests/id:001119,src:000004,op:flip1,pos:12302
+++ b/src/exchange/afl-tests/id:001119,src:000004,op:flip1,pos:12302
diff --git a/src/mint/afl-tests/id:001120,src:000004,op:flip1,pos:12511 b/src/exchange/afl-tests/id:001120,src:000004,op:flip1,pos:12511
index ed4428acb..ed4428acb 100644
--- a/src/mint/afl-tests/id:001120,src:000004,op:flip1,pos:12511
+++ b/src/exchange/afl-tests/id:001120,src:000004,op:flip1,pos:12511
diff --git a/src/mint/afl-tests/id:001121,src:000004,op:flip1,pos:12567,+cov b/src/exchange/afl-tests/id:001121,src:000004,op:flip1,pos:12567,+cov
index 08f6634a0..08f6634a0 100644
--- a/src/mint/afl-tests/id:001121,src:000004,op:flip1,pos:12567,+cov
+++ b/src/exchange/afl-tests/id:001121,src:000004,op:flip1,pos:12567,+cov
diff --git a/src/mint/afl-tests/id:001122,src:000004,op:flip1,pos:12660,+cov b/src/exchange/afl-tests/id:001122,src:000004,op:flip1,pos:12660,+cov
index b312ac3db..b312ac3db 100644
--- a/src/mint/afl-tests/id:001122,src:000004,op:flip1,pos:12660,+cov
+++ b/src/exchange/afl-tests/id:001122,src:000004,op:flip1,pos:12660,+cov
diff --git a/src/mint/afl-tests/id:001123,src:000004,op:flip1,pos:13342 b/src/exchange/afl-tests/id:001123,src:000004,op:flip1,pos:13342
index 792fae008..792fae008 100644
--- a/src/mint/afl-tests/id:001123,src:000004,op:flip1,pos:13342
+++ b/src/exchange/afl-tests/id:001123,src:000004,op:flip1,pos:13342
diff --git a/src/mint/afl-tests/id:001124,src:000004,op:flip1,pos:13550 b/src/exchange/afl-tests/id:001124,src:000004,op:flip1,pos:13550
index 07f0ec7ad..07f0ec7ad 100644
--- a/src/mint/afl-tests/id:001124,src:000004,op:flip1,pos:13550
+++ b/src/exchange/afl-tests/id:001124,src:000004,op:flip1,pos:13550
diff --git a/src/mint/afl-tests/id:001125,src:000004,op:flip1,pos:13758 b/src/exchange/afl-tests/id:001125,src:000004,op:flip1,pos:13758
index ba1194e1b..ba1194e1b 100644
--- a/src/mint/afl-tests/id:001125,src:000004,op:flip1,pos:13758
+++ b/src/exchange/afl-tests/id:001125,src:000004,op:flip1,pos:13758
diff --git a/src/mint/afl-tests/id:001126,src:000004,op:flip1,pos:13968 b/src/exchange/afl-tests/id:001126,src:000004,op:flip1,pos:13968
index 59dba82f5..59dba82f5 100644
--- a/src/mint/afl-tests/id:001126,src:000004,op:flip1,pos:13968
+++ b/src/exchange/afl-tests/id:001126,src:000004,op:flip1,pos:13968
diff --git a/src/mint/afl-tests/id:001127,src:000004,op:flip1,pos:14134,+cov b/src/exchange/afl-tests/id:001127,src:000004,op:flip1,pos:14134,+cov
index a663f1e95..a663f1e95 100644
--- a/src/mint/afl-tests/id:001127,src:000004,op:flip1,pos:14134,+cov
+++ b/src/exchange/afl-tests/id:001127,src:000004,op:flip1,pos:14134,+cov
diff --git a/src/mint/afl-tests/id:001128,src:000004,op:flip1,pos:14599,+cov b/src/exchange/afl-tests/id:001128,src:000004,op:flip1,pos:14599,+cov
index 6b452af69..6b452af69 100644
--- a/src/mint/afl-tests/id:001128,src:000004,op:flip1,pos:14599,+cov
+++ b/src/exchange/afl-tests/id:001128,src:000004,op:flip1,pos:14599,+cov
diff --git a/src/mint/afl-tests/id:001129,src:000004,op:flip1,pos:14603 b/src/exchange/afl-tests/id:001129,src:000004,op:flip1,pos:14603
index e1b7165f9..e1b7165f9 100644
--- a/src/mint/afl-tests/id:001129,src:000004,op:flip1,pos:14603
+++ b/src/exchange/afl-tests/id:001129,src:000004,op:flip1,pos:14603
diff --git a/src/mint/afl-tests/id:001130,src:000004,op:flip1,pos:15122,+cov b/src/exchange/afl-tests/id:001130,src:000004,op:flip1,pos:15122,+cov
index e749065db..e749065db 100644
--- a/src/mint/afl-tests/id:001130,src:000004,op:flip1,pos:15122,+cov
+++ b/src/exchange/afl-tests/id:001130,src:000004,op:flip1,pos:15122,+cov
diff --git a/src/mint/afl-tests/id:001131,src:000004,op:flip1,pos:15271,+cov b/src/exchange/afl-tests/id:001131,src:000004,op:flip1,pos:15271,+cov
index 61150d582..61150d582 100644
--- a/src/mint/afl-tests/id:001131,src:000004,op:flip1,pos:15271,+cov
+++ b/src/exchange/afl-tests/id:001131,src:000004,op:flip1,pos:15271,+cov
diff --git a/src/mint/afl-tests/id:001132,src:000004,op:flip1,pos:15295,+cov b/src/exchange/afl-tests/id:001132,src:000004,op:flip1,pos:15295,+cov
index 41dd314c4..41dd314c4 100644
--- a/src/mint/afl-tests/id:001132,src:000004,op:flip1,pos:15295,+cov
+++ b/src/exchange/afl-tests/id:001132,src:000004,op:flip1,pos:15295,+cov
diff --git a/src/mint/afl-tests/id:001133,src:000004,op:flip1,pos:16328,+cov b/src/exchange/afl-tests/id:001133,src:000004,op:flip1,pos:16328,+cov
index 3dc90c6c2..3dc90c6c2 100644
--- a/src/mint/afl-tests/id:001133,src:000004,op:flip1,pos:16328,+cov
+++ b/src/exchange/afl-tests/id:001133,src:000004,op:flip1,pos:16328,+cov
diff --git a/src/mint/afl-tests/id:001134,src:000004,op:flip1,pos:17507 b/src/exchange/afl-tests/id:001134,src:000004,op:flip1,pos:17507
index d2edebbec..d2edebbec 100644
--- a/src/mint/afl-tests/id:001134,src:000004,op:flip1,pos:17507
+++ b/src/exchange/afl-tests/id:001134,src:000004,op:flip1,pos:17507
diff --git a/src/mint/afl-tests/id:001135,src:000004,op:flip1,pos:17983,+cov b/src/exchange/afl-tests/id:001135,src:000004,op:flip1,pos:17983,+cov
index b54170879..b54170879 100644
--- a/src/mint/afl-tests/id:001135,src:000004,op:flip1,pos:17983,+cov
+++ b/src/exchange/afl-tests/id:001135,src:000004,op:flip1,pos:17983,+cov
diff --git a/src/mint/afl-tests/id:001136,src:000004,op:flip1,pos:18109,+cov b/src/exchange/afl-tests/id:001136,src:000004,op:flip1,pos:18109,+cov
index 1dd885533..1dd885533 100644
--- a/src/mint/afl-tests/id:001136,src:000004,op:flip1,pos:18109,+cov
+++ b/src/exchange/afl-tests/id:001136,src:000004,op:flip1,pos:18109,+cov
diff --git a/src/mint/afl-tests/id:001137,src:000004,op:flip1,pos:19291,+cov b/src/exchange/afl-tests/id:001137,src:000004,op:flip1,pos:19291,+cov
index 75e95e32d..75e95e32d 100644
--- a/src/mint/afl-tests/id:001137,src:000004,op:flip1,pos:19291,+cov
+++ b/src/exchange/afl-tests/id:001137,src:000004,op:flip1,pos:19291,+cov
diff --git a/src/mint/afl-tests/id:001138,src:000004,op:flip1,pos:20068,+cov b/src/exchange/afl-tests/id:001138,src:000004,op:flip1,pos:20068,+cov
index 2890e6c10..2890e6c10 100644
--- a/src/mint/afl-tests/id:001138,src:000004,op:flip1,pos:20068,+cov
+++ b/src/exchange/afl-tests/id:001138,src:000004,op:flip1,pos:20068,+cov
diff --git a/src/mint/afl-tests/id:001139,src:000004,op:flip1,pos:20075,+cov b/src/exchange/afl-tests/id:001139,src:000004,op:flip1,pos:20075,+cov
index 48ad875c6..48ad875c6 100644
--- a/src/mint/afl-tests/id:001139,src:000004,op:flip1,pos:20075,+cov
+++ b/src/exchange/afl-tests/id:001139,src:000004,op:flip1,pos:20075,+cov
diff --git a/src/mint/afl-tests/id:001140,src:000004,op:flip1,pos:20264,+cov b/src/exchange/afl-tests/id:001140,src:000004,op:flip1,pos:20264,+cov
index 38c57fd06..38c57fd06 100644
--- a/src/mint/afl-tests/id:001140,src:000004,op:flip1,pos:20264,+cov
+++ b/src/exchange/afl-tests/id:001140,src:000004,op:flip1,pos:20264,+cov
diff --git a/src/mint/afl-tests/id:001141,src:000004,op:flip1,pos:20372,+cov b/src/exchange/afl-tests/id:001141,src:000004,op:flip1,pos:20372,+cov
index 8fba732a9..8fba732a9 100644
--- a/src/mint/afl-tests/id:001141,src:000004,op:flip1,pos:20372,+cov
+++ b/src/exchange/afl-tests/id:001141,src:000004,op:flip1,pos:20372,+cov
diff --git a/src/mint/afl-tests/id:001142,src:000004,op:flip1,pos:20845,+cov b/src/exchange/afl-tests/id:001142,src:000004,op:flip1,pos:20845,+cov
index 4f04fd011..4f04fd011 100644
--- a/src/mint/afl-tests/id:001142,src:000004,op:flip1,pos:20845,+cov
+++ b/src/exchange/afl-tests/id:001142,src:000004,op:flip1,pos:20845,+cov
diff --git a/src/mint/afl-tests/id:001143,src:000004,op:flip1,pos:21044 b/src/exchange/afl-tests/id:001143,src:000004,op:flip1,pos:21044
index fd82bee8f..fd82bee8f 100644
--- a/src/mint/afl-tests/id:001143,src:000004,op:flip1,pos:21044
+++ b/src/exchange/afl-tests/id:001143,src:000004,op:flip1,pos:21044
diff --git a/src/mint/afl-tests/id:001144,src:000004,op:flip1,pos:21072,+cov b/src/exchange/afl-tests/id:001144,src:000004,op:flip1,pos:21072,+cov
index 2f38588d1..2f38588d1 100644
--- a/src/mint/afl-tests/id:001144,src:000004,op:flip1,pos:21072,+cov
+++ b/src/exchange/afl-tests/id:001144,src:000004,op:flip1,pos:21072,+cov
diff --git a/src/mint/afl-tests/id:001145,src:000004,op:flip1,pos:22111,+cov b/src/exchange/afl-tests/id:001145,src:000004,op:flip1,pos:22111,+cov
index 188621bac..188621bac 100644
--- a/src/mint/afl-tests/id:001145,src:000004,op:flip1,pos:22111,+cov
+++ b/src/exchange/afl-tests/id:001145,src:000004,op:flip1,pos:22111,+cov
diff --git a/src/mint/afl-tests/id:001146,src:000004,op:flip1,pos:22404,+cov b/src/exchange/afl-tests/id:001146,src:000004,op:flip1,pos:22404,+cov
index 7494f020a..7494f020a 100644
--- a/src/mint/afl-tests/id:001146,src:000004,op:flip1,pos:22404,+cov
+++ b/src/exchange/afl-tests/id:001146,src:000004,op:flip1,pos:22404,+cov
diff --git a/src/mint/afl-tests/id:001147,src:000004,op:flip1,pos:23777,+cov b/src/exchange/afl-tests/id:001147,src:000004,op:flip1,pos:23777,+cov
index 0aa3df33d..0aa3df33d 100644
--- a/src/mint/afl-tests/id:001147,src:000004,op:flip1,pos:23777,+cov
+++ b/src/exchange/afl-tests/id:001147,src:000004,op:flip1,pos:23777,+cov
diff --git a/src/mint/afl-tests/id:001148,src:000004,op:flip1,pos:24046,+cov b/src/exchange/afl-tests/id:001148,src:000004,op:flip1,pos:24046,+cov
index 8592c8246..8592c8246 100644
--- a/src/mint/afl-tests/id:001148,src:000004,op:flip1,pos:24046,+cov
+++ b/src/exchange/afl-tests/id:001148,src:000004,op:flip1,pos:24046,+cov
diff --git a/src/mint/afl-tests/id:001149,src:000004,op:flip1,pos:27360,+cov b/src/exchange/afl-tests/id:001149,src:000004,op:flip1,pos:27360,+cov
index 7c25b2134..7c25b2134 100644
--- a/src/mint/afl-tests/id:001149,src:000004,op:flip1,pos:27360,+cov
+++ b/src/exchange/afl-tests/id:001149,src:000004,op:flip1,pos:27360,+cov
diff --git a/src/mint/afl-tests/id:001150,src:000004,op:flip1,pos:27547,+cov b/src/exchange/afl-tests/id:001150,src:000004,op:flip1,pos:27547,+cov
index e7ca1358b..e7ca1358b 100644
--- a/src/mint/afl-tests/id:001150,src:000004,op:flip1,pos:27547,+cov
+++ b/src/exchange/afl-tests/id:001150,src:000004,op:flip1,pos:27547,+cov
diff --git a/src/mint/afl-tests/id:001151,src:000004,op:flip1,pos:28206,+cov b/src/exchange/afl-tests/id:001151,src:000004,op:flip1,pos:28206,+cov
index e985cc465..e985cc465 100644
--- a/src/mint/afl-tests/id:001151,src:000004,op:flip1,pos:28206,+cov
+++ b/src/exchange/afl-tests/id:001151,src:000004,op:flip1,pos:28206,+cov
diff --git a/src/mint/afl-tests/id:001152,src:000004,op:flip1,pos:29132,+cov b/src/exchange/afl-tests/id:001152,src:000004,op:flip1,pos:29132,+cov
index 33d0a93a6..33d0a93a6 100644
--- a/src/mint/afl-tests/id:001152,src:000004,op:flip1,pos:29132,+cov
+++ b/src/exchange/afl-tests/id:001152,src:000004,op:flip1,pos:29132,+cov
diff --git a/src/mint/afl-tests/id:001153,src:000004,op:flip1,pos:29181,+cov b/src/exchange/afl-tests/id:001153,src:000004,op:flip1,pos:29181,+cov
index 2dbd09187..2dbd09187 100644
--- a/src/mint/afl-tests/id:001153,src:000004,op:flip1,pos:29181,+cov
+++ b/src/exchange/afl-tests/id:001153,src:000004,op:flip1,pos:29181,+cov
diff --git a/src/mint/afl-tests/id:001154,src:000004,op:flip1,pos:30141,+cov b/src/exchange/afl-tests/id:001154,src:000004,op:flip1,pos:30141,+cov
index 87d7c814c..87d7c814c 100644
--- a/src/mint/afl-tests/id:001154,src:000004,op:flip1,pos:30141,+cov
+++ b/src/exchange/afl-tests/id:001154,src:000004,op:flip1,pos:30141,+cov
diff --git a/src/mint/afl-tests/id:001155,src:000004,op:flip1,pos:30860,+cov b/src/exchange/afl-tests/id:001155,src:000004,op:flip1,pos:30860,+cov
index 4aae7452e..4aae7452e 100644
--- a/src/mint/afl-tests/id:001155,src:000004,op:flip1,pos:30860,+cov
+++ b/src/exchange/afl-tests/id:001155,src:000004,op:flip1,pos:30860,+cov
diff --git a/src/mint/afl-tests/id:001156,src:000004,op:flip1,pos:31016,+cov b/src/exchange/afl-tests/id:001156,src:000004,op:flip1,pos:31016,+cov
index 2a7aae7b3..2a7aae7b3 100644
--- a/src/mint/afl-tests/id:001156,src:000004,op:flip1,pos:31016,+cov
+++ b/src/exchange/afl-tests/id:001156,src:000004,op:flip1,pos:31016,+cov
diff --git a/src/mint/afl-tests/id:001157,src:000004,op:flip1,pos:31260,+cov b/src/exchange/afl-tests/id:001157,src:000004,op:flip1,pos:31260,+cov
index 6381e638c..6381e638c 100644
--- a/src/mint/afl-tests/id:001157,src:000004,op:flip1,pos:31260,+cov
+++ b/src/exchange/afl-tests/id:001157,src:000004,op:flip1,pos:31260,+cov
diff --git a/src/mint/afl-tests/id:001158,src:000004,op:flip1,pos:32301,+cov b/src/exchange/afl-tests/id:001158,src:000004,op:flip1,pos:32301,+cov
index e6d0f83ce..e6d0f83ce 100644
--- a/src/mint/afl-tests/id:001158,src:000004,op:flip1,pos:32301,+cov
+++ b/src/exchange/afl-tests/id:001158,src:000004,op:flip1,pos:32301,+cov
diff --git a/src/mint/afl-tests/id:001159,src:000004,op:flip1,pos:32476,+cov b/src/exchange/afl-tests/id:001159,src:000004,op:flip1,pos:32476,+cov
index d74dd910f..d74dd910f 100644
--- a/src/mint/afl-tests/id:001159,src:000004,op:flip1,pos:32476,+cov
+++ b/src/exchange/afl-tests/id:001159,src:000004,op:flip1,pos:32476,+cov
diff --git a/src/mint/afl-tests/id:001160,src:000004,op:flip1,pos:33475,+cov b/src/exchange/afl-tests/id:001160,src:000004,op:flip1,pos:33475,+cov
index c0ec2ba7d..c0ec2ba7d 100644
--- a/src/mint/afl-tests/id:001160,src:000004,op:flip1,pos:33475,+cov
+++ b/src/exchange/afl-tests/id:001160,src:000004,op:flip1,pos:33475,+cov
diff --git a/src/mint/afl-tests/id:001161,src:000004,op:flip2,pos:108 b/src/exchange/afl-tests/id:001161,src:000004,op:flip2,pos:108
index 08a344286..08a344286 100644
--- a/src/mint/afl-tests/id:001161,src:000004,op:flip2,pos:108
+++ b/src/exchange/afl-tests/id:001161,src:000004,op:flip2,pos:108
diff --git a/src/mint/afl-tests/id:001162,src:000004,op:flip2,pos:272,+cov b/src/exchange/afl-tests/id:001162,src:000004,op:flip2,pos:272,+cov
index e6ec6a90e..e6ec6a90e 100644
--- a/src/mint/afl-tests/id:001162,src:000004,op:flip2,pos:272,+cov
+++ b/src/exchange/afl-tests/id:001162,src:000004,op:flip2,pos:272,+cov
diff --git a/src/mint/afl-tests/id:001163,src:000004,op:flip2,pos:501,+cov b/src/exchange/afl-tests/id:001163,src:000004,op:flip2,pos:501,+cov
index 14ef8b87f..14ef8b87f 100644
--- a/src/mint/afl-tests/id:001163,src:000004,op:flip2,pos:501,+cov
+++ b/src/exchange/afl-tests/id:001163,src:000004,op:flip2,pos:501,+cov
diff --git a/src/mint/afl-tests/id:001164,src:000004,op:flip2,pos:1593,+cov b/src/exchange/afl-tests/id:001164,src:000004,op:flip2,pos:1593,+cov
index bd6df83eb..bd6df83eb 100644
--- a/src/mint/afl-tests/id:001164,src:000004,op:flip2,pos:1593,+cov
+++ b/src/exchange/afl-tests/id:001164,src:000004,op:flip2,pos:1593,+cov
diff --git a/src/mint/afl-tests/id:001165,src:000004,op:flip2,pos:1877,+cov b/src/exchange/afl-tests/id:001165,src:000004,op:flip2,pos:1877,+cov
index 22acc5fee..22acc5fee 100644
--- a/src/mint/afl-tests/id:001165,src:000004,op:flip2,pos:1877,+cov
+++ b/src/exchange/afl-tests/id:001165,src:000004,op:flip2,pos:1877,+cov
diff --git a/src/mint/afl-tests/id:001166,src:000004,op:flip2,pos:2863,+cov b/src/exchange/afl-tests/id:001166,src:000004,op:flip2,pos:2863,+cov
index 672547a3d..672547a3d 100644
--- a/src/mint/afl-tests/id:001166,src:000004,op:flip2,pos:2863,+cov
+++ b/src/exchange/afl-tests/id:001166,src:000004,op:flip2,pos:2863,+cov
diff --git a/src/mint/afl-tests/id:001167,src:000004,op:flip2,pos:3189,+cov b/src/exchange/afl-tests/id:001167,src:000004,op:flip2,pos:3189,+cov
index a0fb164be..a0fb164be 100644
--- a/src/mint/afl-tests/id:001167,src:000004,op:flip2,pos:3189,+cov
+++ b/src/exchange/afl-tests/id:001167,src:000004,op:flip2,pos:3189,+cov
diff --git a/src/mint/afl-tests/id:001168,src:000004,op:flip2,pos:5916,+cov b/src/exchange/afl-tests/id:001168,src:000004,op:flip2,pos:5916,+cov
index f6eec0890..f6eec0890 100644
--- a/src/mint/afl-tests/id:001168,src:000004,op:flip2,pos:5916,+cov
+++ b/src/exchange/afl-tests/id:001168,src:000004,op:flip2,pos:5916,+cov
diff --git a/src/mint/afl-tests/id:001169,src:000004,op:flip2,pos:6474,+cov b/src/exchange/afl-tests/id:001169,src:000004,op:flip2,pos:6474,+cov
index b3ab01d8e..b3ab01d8e 100644
--- a/src/mint/afl-tests/id:001169,src:000004,op:flip2,pos:6474,+cov
+++ b/src/exchange/afl-tests/id:001169,src:000004,op:flip2,pos:6474,+cov
diff --git a/src/mint/afl-tests/id:001170,src:000004,op:flip2,pos:8695,+cov b/src/exchange/afl-tests/id:001170,src:000004,op:flip2,pos:8695,+cov
index eaa82fafc..eaa82fafc 100644
--- a/src/mint/afl-tests/id:001170,src:000004,op:flip2,pos:8695,+cov
+++ b/src/exchange/afl-tests/id:001170,src:000004,op:flip2,pos:8695,+cov
diff --git a/src/mint/afl-tests/id:001171,src:000004,op:flip2,pos:9101,+cov b/src/exchange/afl-tests/id:001171,src:000004,op:flip2,pos:9101,+cov
index 36104fb8a..36104fb8a 100644
--- a/src/mint/afl-tests/id:001171,src:000004,op:flip2,pos:9101,+cov
+++ b/src/exchange/afl-tests/id:001171,src:000004,op:flip2,pos:9101,+cov
diff --git a/src/mint/afl-tests/id:001172,src:000004,op:flip2,pos:9350,+cov b/src/exchange/afl-tests/id:001172,src:000004,op:flip2,pos:9350,+cov
index b2ab18004..b2ab18004 100644
--- a/src/mint/afl-tests/id:001172,src:000004,op:flip2,pos:9350,+cov
+++ b/src/exchange/afl-tests/id:001172,src:000004,op:flip2,pos:9350,+cov
diff --git a/src/mint/afl-tests/id:001173,src:000004,op:flip2,pos:9675,+cov b/src/exchange/afl-tests/id:001173,src:000004,op:flip2,pos:9675,+cov
index 70e9b6959..70e9b6959 100644
--- a/src/mint/afl-tests/id:001173,src:000004,op:flip2,pos:9675,+cov
+++ b/src/exchange/afl-tests/id:001173,src:000004,op:flip2,pos:9675,+cov
diff --git a/src/mint/afl-tests/id:001174,src:000004,op:flip2,pos:9779,+cov b/src/exchange/afl-tests/id:001174,src:000004,op:flip2,pos:9779,+cov
index b194779d6..b194779d6 100644
--- a/src/mint/afl-tests/id:001174,src:000004,op:flip2,pos:9779,+cov
+++ b/src/exchange/afl-tests/id:001174,src:000004,op:flip2,pos:9779,+cov
diff --git a/src/mint/afl-tests/id:001175,src:000004,op:flip2,pos:10123,+cov b/src/exchange/afl-tests/id:001175,src:000004,op:flip2,pos:10123,+cov
index 80862b397..80862b397 100644
--- a/src/mint/afl-tests/id:001175,src:000004,op:flip2,pos:10123,+cov
+++ b/src/exchange/afl-tests/id:001175,src:000004,op:flip2,pos:10123,+cov
diff --git a/src/mint/afl-tests/id:001176,src:000004,op:flip2,pos:10486,+cov b/src/exchange/afl-tests/id:001176,src:000004,op:flip2,pos:10486,+cov
index e97fdf9e1..e97fdf9e1 100644
--- a/src/mint/afl-tests/id:001176,src:000004,op:flip2,pos:10486,+cov
+++ b/src/exchange/afl-tests/id:001176,src:000004,op:flip2,pos:10486,+cov
diff --git a/src/mint/afl-tests/id:001177,src:000004,op:flip2,pos:11222,+cov b/src/exchange/afl-tests/id:001177,src:000004,op:flip2,pos:11222,+cov
index dd9e8b6ad..dd9e8b6ad 100644
--- a/src/mint/afl-tests/id:001177,src:000004,op:flip2,pos:11222,+cov
+++ b/src/exchange/afl-tests/id:001177,src:000004,op:flip2,pos:11222,+cov
diff --git a/src/mint/afl-tests/id:001178,src:000004,op:flip2,pos:11504,+cov b/src/exchange/afl-tests/id:001178,src:000004,op:flip2,pos:11504,+cov
index 5cb583de8..5cb583de8 100644
--- a/src/mint/afl-tests/id:001178,src:000004,op:flip2,pos:11504,+cov
+++ b/src/exchange/afl-tests/id:001178,src:000004,op:flip2,pos:11504,+cov
diff --git a/src/mint/afl-tests/id:001179,src:000004,op:flip2,pos:13892,+cov b/src/exchange/afl-tests/id:001179,src:000004,op:flip2,pos:13892,+cov
index 50ce154eb..50ce154eb 100644
--- a/src/mint/afl-tests/id:001179,src:000004,op:flip2,pos:13892,+cov
+++ b/src/exchange/afl-tests/id:001179,src:000004,op:flip2,pos:13892,+cov
diff --git a/src/mint/afl-tests/id:001180,src:000004,op:flip2,pos:14104,+cov b/src/exchange/afl-tests/id:001180,src:000004,op:flip2,pos:14104,+cov
index 782604aea..782604aea 100644
--- a/src/mint/afl-tests/id:001180,src:000004,op:flip2,pos:14104,+cov
+++ b/src/exchange/afl-tests/id:001180,src:000004,op:flip2,pos:14104,+cov
diff --git a/src/mint/afl-tests/id:001181,src:000004,op:flip2,pos:16451,+cov b/src/exchange/afl-tests/id:001181,src:000004,op:flip2,pos:16451,+cov
index 98d26fbcf..98d26fbcf 100644
--- a/src/mint/afl-tests/id:001181,src:000004,op:flip2,pos:16451,+cov
+++ b/src/exchange/afl-tests/id:001181,src:000004,op:flip2,pos:16451,+cov
diff --git a/src/mint/afl-tests/id:001182,src:000004,op:flip2,pos:17186,+cov b/src/exchange/afl-tests/id:001182,src:000004,op:flip2,pos:17186,+cov
index 625521f0a..625521f0a 100644
--- a/src/mint/afl-tests/id:001182,src:000004,op:flip2,pos:17186,+cov
+++ b/src/exchange/afl-tests/id:001182,src:000004,op:flip2,pos:17186,+cov
diff --git a/src/mint/afl-tests/id:001183,src:000004,op:flip2,pos:18869,+cov b/src/exchange/afl-tests/id:001183,src:000004,op:flip2,pos:18869,+cov
index df4bd5be2..df4bd5be2 100644
--- a/src/mint/afl-tests/id:001183,src:000004,op:flip2,pos:18869,+cov
+++ b/src/exchange/afl-tests/id:001183,src:000004,op:flip2,pos:18869,+cov
diff --git a/src/mint/afl-tests/id:001184,src:000004,op:flip2,pos:20039,+cov b/src/exchange/afl-tests/id:001184,src:000004,op:flip2,pos:20039,+cov
index 731c6c4c9..731c6c4c9 100644
--- a/src/mint/afl-tests/id:001184,src:000004,op:flip2,pos:20039,+cov
+++ b/src/exchange/afl-tests/id:001184,src:000004,op:flip2,pos:20039,+cov
diff --git a/src/mint/afl-tests/id:001185,src:000004,op:flip2,pos:20319,+cov b/src/exchange/afl-tests/id:001185,src:000004,op:flip2,pos:20319,+cov
index 0c3c81b24..0c3c81b24 100644
--- a/src/mint/afl-tests/id:001185,src:000004,op:flip2,pos:20319,+cov
+++ b/src/exchange/afl-tests/id:001185,src:000004,op:flip2,pos:20319,+cov
diff --git a/src/mint/afl-tests/id:001186,src:000004,op:flip2,pos:20987,+cov b/src/exchange/afl-tests/id:001186,src:000004,op:flip2,pos:20987,+cov
index 65513a07f..65513a07f 100644
--- a/src/mint/afl-tests/id:001186,src:000004,op:flip2,pos:20987,+cov
+++ b/src/exchange/afl-tests/id:001186,src:000004,op:flip2,pos:20987,+cov
diff --git a/src/mint/afl-tests/id:001187,src:000004,op:flip2,pos:22115,+cov b/src/exchange/afl-tests/id:001187,src:000004,op:flip2,pos:22115,+cov
index d96e4d747..d96e4d747 100644
--- a/src/mint/afl-tests/id:001187,src:000004,op:flip2,pos:22115,+cov
+++ b/src/exchange/afl-tests/id:001187,src:000004,op:flip2,pos:22115,+cov
diff --git a/src/mint/afl-tests/id:001188,src:000004,op:flip2,pos:22139,+cov b/src/exchange/afl-tests/id:001188,src:000004,op:flip2,pos:22139,+cov
index 017d9644a..017d9644a 100644
--- a/src/mint/afl-tests/id:001188,src:000004,op:flip2,pos:22139,+cov
+++ b/src/exchange/afl-tests/id:001188,src:000004,op:flip2,pos:22139,+cov
diff --git a/src/mint/afl-tests/id:001189,src:000004,op:flip2,pos:22530,+cov b/src/exchange/afl-tests/id:001189,src:000004,op:flip2,pos:22530,+cov
index 216475300..216475300 100644
--- a/src/mint/afl-tests/id:001189,src:000004,op:flip2,pos:22530,+cov
+++ b/src/exchange/afl-tests/id:001189,src:000004,op:flip2,pos:22530,+cov
diff --git a/src/mint/afl-tests/id:001190,src:000004,op:flip2,pos:22871,+cov b/src/exchange/afl-tests/id:001190,src:000004,op:flip2,pos:22871,+cov
index 4ecbdcd52..4ecbdcd52 100644
--- a/src/mint/afl-tests/id:001190,src:000004,op:flip2,pos:22871,+cov
+++ b/src/exchange/afl-tests/id:001190,src:000004,op:flip2,pos:22871,+cov
diff --git a/src/mint/afl-tests/id:001191,src:000004,op:flip2,pos:22878,+cov b/src/exchange/afl-tests/id:001191,src:000004,op:flip2,pos:22878,+cov
index ae2ab029c..ae2ab029c 100644
--- a/src/mint/afl-tests/id:001191,src:000004,op:flip2,pos:22878,+cov
+++ b/src/exchange/afl-tests/id:001191,src:000004,op:flip2,pos:22878,+cov
diff --git a/src/mint/afl-tests/id:001192,src:000004,op:flip2,pos:23586,+cov b/src/exchange/afl-tests/id:001192,src:000004,op:flip2,pos:23586,+cov
index 6f5703478..6f5703478 100644
--- a/src/mint/afl-tests/id:001192,src:000004,op:flip2,pos:23586,+cov
+++ b/src/exchange/afl-tests/id:001192,src:000004,op:flip2,pos:23586,+cov
diff --git a/src/mint/afl-tests/id:001193,src:000004,op:flip2,pos:24806,+cov b/src/exchange/afl-tests/id:001193,src:000004,op:flip2,pos:24806,+cov
index ec03c6265..ec03c6265 100644
--- a/src/mint/afl-tests/id:001193,src:000004,op:flip2,pos:24806,+cov
+++ b/src/exchange/afl-tests/id:001193,src:000004,op:flip2,pos:24806,+cov
diff --git a/src/mint/afl-tests/id:001194,src:000004,op:flip2,pos:25248,+cov b/src/exchange/afl-tests/id:001194,src:000004,op:flip2,pos:25248,+cov
index b06de9308..b06de9308 100644
--- a/src/mint/afl-tests/id:001194,src:000004,op:flip2,pos:25248,+cov
+++ b/src/exchange/afl-tests/id:001194,src:000004,op:flip2,pos:25248,+cov
diff --git a/src/mint/afl-tests/id:001195,src:000004,op:flip2,pos:26529,+cov b/src/exchange/afl-tests/id:001195,src:000004,op:flip2,pos:26529,+cov
index b88986ca7..b88986ca7 100644
--- a/src/mint/afl-tests/id:001195,src:000004,op:flip2,pos:26529,+cov
+++ b/src/exchange/afl-tests/id:001195,src:000004,op:flip2,pos:26529,+cov
diff --git a/src/mint/afl-tests/id:001196,src:000004,op:flip2,pos:28158,+cov b/src/exchange/afl-tests/id:001196,src:000004,op:flip2,pos:28158,+cov
index 015f1b603..015f1b603 100644
--- a/src/mint/afl-tests/id:001196,src:000004,op:flip2,pos:28158,+cov
+++ b/src/exchange/afl-tests/id:001196,src:000004,op:flip2,pos:28158,+cov
diff --git a/src/mint/afl-tests/id:001197,src:000004,op:flip2,pos:29113,+cov b/src/exchange/afl-tests/id:001197,src:000004,op:flip2,pos:29113,+cov
index 361c69fd7..361c69fd7 100644
--- a/src/mint/afl-tests/id:001197,src:000004,op:flip2,pos:29113,+cov
+++ b/src/exchange/afl-tests/id:001197,src:000004,op:flip2,pos:29113,+cov
diff --git a/src/mint/afl-tests/id:001198,src:000004,op:flip2,pos:29233,+cov b/src/exchange/afl-tests/id:001198,src:000004,op:flip2,pos:29233,+cov
index a4a563eaf..a4a563eaf 100644
--- a/src/mint/afl-tests/id:001198,src:000004,op:flip2,pos:29233,+cov
+++ b/src/exchange/afl-tests/id:001198,src:000004,op:flip2,pos:29233,+cov
diff --git a/src/mint/afl-tests/id:001199,src:000004,op:flip2,pos:31755,+cov b/src/exchange/afl-tests/id:001199,src:000004,op:flip2,pos:31755,+cov
index a8996d176..a8996d176 100644
--- a/src/mint/afl-tests/id:001199,src:000004,op:flip2,pos:31755,+cov
+++ b/src/exchange/afl-tests/id:001199,src:000004,op:flip2,pos:31755,+cov
diff --git a/src/mint/afl-tests/id:001200,src:000004,op:flip2,pos:32441,+cov b/src/exchange/afl-tests/id:001200,src:000004,op:flip2,pos:32441,+cov
index 513c55c33..513c55c33 100644
--- a/src/mint/afl-tests/id:001200,src:000004,op:flip2,pos:32441,+cov
+++ b/src/exchange/afl-tests/id:001200,src:000004,op:flip2,pos:32441,+cov
diff --git a/src/mint/afl-tests/id:001201,src:000004,op:flip2,pos:32888,+cov b/src/exchange/afl-tests/id:001201,src:000004,op:flip2,pos:32888,+cov
index 9b9de1add..9b9de1add 100644
--- a/src/mint/afl-tests/id:001201,src:000004,op:flip2,pos:32888,+cov
+++ b/src/exchange/afl-tests/id:001201,src:000004,op:flip2,pos:32888,+cov
diff --git a/src/mint/afl-tests/id:001202,src:000004,op:flip2,pos:33869,+cov b/src/exchange/afl-tests/id:001202,src:000004,op:flip2,pos:33869,+cov
index 52d4e76cc..52d4e76cc 100644
--- a/src/mint/afl-tests/id:001202,src:000004,op:flip2,pos:33869,+cov
+++ b/src/exchange/afl-tests/id:001202,src:000004,op:flip2,pos:33869,+cov
diff --git a/src/mint/afl-tests/id:001203,src:000004,op:flip4,pos:399,+cov b/src/exchange/afl-tests/id:001203,src:000004,op:flip4,pos:399,+cov
index 26b452c41..26b452c41 100644
--- a/src/mint/afl-tests/id:001203,src:000004,op:flip4,pos:399,+cov
+++ b/src/exchange/afl-tests/id:001203,src:000004,op:flip4,pos:399,+cov
diff --git a/src/mint/afl-tests/id:001204,src:000004,op:flip4,pos:1377,+cov b/src/exchange/afl-tests/id:001204,src:000004,op:flip4,pos:1377,+cov
index 4cb6df571..4cb6df571 100644
--- a/src/mint/afl-tests/id:001204,src:000004,op:flip4,pos:1377,+cov
+++ b/src/exchange/afl-tests/id:001204,src:000004,op:flip4,pos:1377,+cov
diff --git a/src/mint/afl-tests/id:001205,src:000004,op:flip4,pos:1830,+cov b/src/exchange/afl-tests/id:001205,src:000004,op:flip4,pos:1830,+cov
index bc2e00325..bc2e00325 100644
--- a/src/mint/afl-tests/id:001205,src:000004,op:flip4,pos:1830,+cov
+++ b/src/exchange/afl-tests/id:001205,src:000004,op:flip4,pos:1830,+cov
diff --git a/src/mint/afl-tests/id:001206,src:000004,op:flip4,pos:3239,+cov b/src/exchange/afl-tests/id:001206,src:000004,op:flip4,pos:3239,+cov
index 5f2516cd4..5f2516cd4 100644
--- a/src/mint/afl-tests/id:001206,src:000004,op:flip4,pos:3239,+cov
+++ b/src/exchange/afl-tests/id:001206,src:000004,op:flip4,pos:3239,+cov
diff --git a/src/mint/afl-tests/id:001207,src:000004,op:flip4,pos:3591,+cov b/src/exchange/afl-tests/id:001207,src:000004,op:flip4,pos:3591,+cov
index 3ce4d373e..3ce4d373e 100644
--- a/src/mint/afl-tests/id:001207,src:000004,op:flip4,pos:3591,+cov
+++ b/src/exchange/afl-tests/id:001207,src:000004,op:flip4,pos:3591,+cov
diff --git a/src/mint/afl-tests/id:001208,src:000004,op:flip4,pos:3708,+cov b/src/exchange/afl-tests/id:001208,src:000004,op:flip4,pos:3708,+cov
index 23825d180..23825d180 100644
--- a/src/mint/afl-tests/id:001208,src:000004,op:flip4,pos:3708,+cov
+++ b/src/exchange/afl-tests/id:001208,src:000004,op:flip4,pos:3708,+cov
diff --git a/src/mint/afl-tests/id:001209,src:000004,op:flip4,pos:4350,+cov b/src/exchange/afl-tests/id:001209,src:000004,op:flip4,pos:4350,+cov
index 5d902fd15..5d902fd15 100644
--- a/src/mint/afl-tests/id:001209,src:000004,op:flip4,pos:4350,+cov
+++ b/src/exchange/afl-tests/id:001209,src:000004,op:flip4,pos:4350,+cov
diff --git a/src/mint/afl-tests/id:001210,src:000004,op:flip4,pos:4487,+cov b/src/exchange/afl-tests/id:001210,src:000004,op:flip4,pos:4487,+cov
index 5b9b2bf3a..5b9b2bf3a 100644
--- a/src/mint/afl-tests/id:001210,src:000004,op:flip4,pos:4487,+cov
+++ b/src/exchange/afl-tests/id:001210,src:000004,op:flip4,pos:4487,+cov
diff --git a/src/mint/afl-tests/id:001211,src:000004,op:flip4,pos:4584,+cov b/src/exchange/afl-tests/id:001211,src:000004,op:flip4,pos:4584,+cov
index a00c97a9d..a00c97a9d 100644
--- a/src/mint/afl-tests/id:001211,src:000004,op:flip4,pos:4584,+cov
+++ b/src/exchange/afl-tests/id:001211,src:000004,op:flip4,pos:4584,+cov
diff --git a/src/mint/afl-tests/id:001212,src:000004,op:flip4,pos:5470,+cov b/src/exchange/afl-tests/id:001212,src:000004,op:flip4,pos:5470,+cov
index 7607e8165..7607e8165 100644
--- a/src/mint/afl-tests/id:001212,src:000004,op:flip4,pos:5470,+cov
+++ b/src/exchange/afl-tests/id:001212,src:000004,op:flip4,pos:5470,+cov
diff --git a/src/mint/afl-tests/id:001213,src:000004,op:flip4,pos:6559,+cov b/src/exchange/afl-tests/id:001213,src:000004,op:flip4,pos:6559,+cov
index 73f228a96..73f228a96 100644
--- a/src/mint/afl-tests/id:001213,src:000004,op:flip4,pos:6559,+cov
+++ b/src/exchange/afl-tests/id:001213,src:000004,op:flip4,pos:6559,+cov
diff --git a/src/mint/afl-tests/id:001214,src:000004,op:flip4,pos:6626,+cov b/src/exchange/afl-tests/id:001214,src:000004,op:flip4,pos:6626,+cov
index 94de8dcbe..94de8dcbe 100644
--- a/src/mint/afl-tests/id:001214,src:000004,op:flip4,pos:6626,+cov
+++ b/src/exchange/afl-tests/id:001214,src:000004,op:flip4,pos:6626,+cov
diff --git a/src/mint/afl-tests/id:001215,src:000004,op:flip4,pos:7110,+cov b/src/exchange/afl-tests/id:001215,src:000004,op:flip4,pos:7110,+cov
index c98df919a..c98df919a 100644
--- a/src/mint/afl-tests/id:001215,src:000004,op:flip4,pos:7110,+cov
+++ b/src/exchange/afl-tests/id:001215,src:000004,op:flip4,pos:7110,+cov
diff --git a/src/mint/afl-tests/id:001216,src:000004,op:flip4,pos:7148,+cov b/src/exchange/afl-tests/id:001216,src:000004,op:flip4,pos:7148,+cov
index 8c764fce7..8c764fce7 100644
--- a/src/mint/afl-tests/id:001216,src:000004,op:flip4,pos:7148,+cov
+++ b/src/exchange/afl-tests/id:001216,src:000004,op:flip4,pos:7148,+cov
diff --git a/src/mint/afl-tests/id:001217,src:000004,op:flip4,pos:7168,+cov b/src/exchange/afl-tests/id:001217,src:000004,op:flip4,pos:7168,+cov
index 2d65f69c7..2d65f69c7 100644
--- a/src/mint/afl-tests/id:001217,src:000004,op:flip4,pos:7168,+cov
+++ b/src/exchange/afl-tests/id:001217,src:000004,op:flip4,pos:7168,+cov
diff --git a/src/mint/afl-tests/id:001218,src:000004,op:flip4,pos:7715,+cov b/src/exchange/afl-tests/id:001218,src:000004,op:flip4,pos:7715,+cov
index 03b777caf..03b777caf 100644
--- a/src/mint/afl-tests/id:001218,src:000004,op:flip4,pos:7715,+cov
+++ b/src/exchange/afl-tests/id:001218,src:000004,op:flip4,pos:7715,+cov
diff --git a/src/mint/afl-tests/id:001219,src:000004,op:flip4,pos:9108,+cov b/src/exchange/afl-tests/id:001219,src:000004,op:flip4,pos:9108,+cov
index 889eb7e03..889eb7e03 100644
--- a/src/mint/afl-tests/id:001219,src:000004,op:flip4,pos:9108,+cov
+++ b/src/exchange/afl-tests/id:001219,src:000004,op:flip4,pos:9108,+cov
diff --git a/src/mint/afl-tests/id:001220,src:000004,op:flip4,pos:9386,+cov b/src/exchange/afl-tests/id:001220,src:000004,op:flip4,pos:9386,+cov
index 92e0834e8..92e0834e8 100644
--- a/src/mint/afl-tests/id:001220,src:000004,op:flip4,pos:9386,+cov
+++ b/src/exchange/afl-tests/id:001220,src:000004,op:flip4,pos:9386,+cov
diff --git a/src/mint/afl-tests/id:001221,src:000004,op:flip4,pos:9592,+cov b/src/exchange/afl-tests/id:001221,src:000004,op:flip4,pos:9592,+cov
index 6d40e15c5..6d40e15c5 100644
--- a/src/mint/afl-tests/id:001221,src:000004,op:flip4,pos:9592,+cov
+++ b/src/exchange/afl-tests/id:001221,src:000004,op:flip4,pos:9592,+cov
diff --git a/src/mint/afl-tests/id:001222,src:000004,op:flip4,pos:9878,+cov b/src/exchange/afl-tests/id:001222,src:000004,op:flip4,pos:9878,+cov
index d625ba258..d625ba258 100644
--- a/src/mint/afl-tests/id:001222,src:000004,op:flip4,pos:9878,+cov
+++ b/src/exchange/afl-tests/id:001222,src:000004,op:flip4,pos:9878,+cov
diff --git a/src/mint/afl-tests/id:001223,src:000004,op:flip4,pos:9972,+cov b/src/exchange/afl-tests/id:001223,src:000004,op:flip4,pos:9972,+cov
index ff5c27c4e..ff5c27c4e 100644
--- a/src/mint/afl-tests/id:001223,src:000004,op:flip4,pos:9972,+cov
+++ b/src/exchange/afl-tests/id:001223,src:000004,op:flip4,pos:9972,+cov
diff --git a/src/mint/afl-tests/id:001224,src:000004,op:flip4,pos:10287,+cov b/src/exchange/afl-tests/id:001224,src:000004,op:flip4,pos:10287,+cov
index 045286f69..045286f69 100644
--- a/src/mint/afl-tests/id:001224,src:000004,op:flip4,pos:10287,+cov
+++ b/src/exchange/afl-tests/id:001224,src:000004,op:flip4,pos:10287,+cov
diff --git a/src/mint/afl-tests/id:001225,src:000004,op:flip4,pos:10737,+cov b/src/exchange/afl-tests/id:001225,src:000004,op:flip4,pos:10737,+cov
index c396ea742..c396ea742 100644
--- a/src/mint/afl-tests/id:001225,src:000004,op:flip4,pos:10737,+cov
+++ b/src/exchange/afl-tests/id:001225,src:000004,op:flip4,pos:10737,+cov
diff --git a/src/mint/afl-tests/id:001226,src:000004,op:flip4,pos:12260,+cov b/src/exchange/afl-tests/id:001226,src:000004,op:flip4,pos:12260,+cov
index f67390f3e..f67390f3e 100644
--- a/src/mint/afl-tests/id:001226,src:000004,op:flip4,pos:12260,+cov
+++ b/src/exchange/afl-tests/id:001226,src:000004,op:flip4,pos:12260,+cov
diff --git a/src/mint/afl-tests/id:001227,src:000004,op:flip4,pos:15195,+cov b/src/exchange/afl-tests/id:001227,src:000004,op:flip4,pos:15195,+cov
index eeb4d1dd2..eeb4d1dd2 100644
--- a/src/mint/afl-tests/id:001227,src:000004,op:flip4,pos:15195,+cov
+++ b/src/exchange/afl-tests/id:001227,src:000004,op:flip4,pos:15195,+cov
diff --git a/src/mint/afl-tests/id:001228,src:000004,op:flip4,pos:15571,+cov b/src/exchange/afl-tests/id:001228,src:000004,op:flip4,pos:15571,+cov
index b2ae1fa9b..b2ae1fa9b 100644
--- a/src/mint/afl-tests/id:001228,src:000004,op:flip4,pos:15571,+cov
+++ b/src/exchange/afl-tests/id:001228,src:000004,op:flip4,pos:15571,+cov
diff --git a/src/mint/afl-tests/id:001229,src:000004,op:flip4,pos:19500,+cov b/src/exchange/afl-tests/id:001229,src:000004,op:flip4,pos:19500,+cov
index 7593747d4..7593747d4 100644
--- a/src/mint/afl-tests/id:001229,src:000004,op:flip4,pos:19500,+cov
+++ b/src/exchange/afl-tests/id:001229,src:000004,op:flip4,pos:19500,+cov
diff --git a/src/mint/afl-tests/id:001230,src:000004,op:flip4,pos:20444,+cov b/src/exchange/afl-tests/id:001230,src:000004,op:flip4,pos:20444,+cov
index b55c57fcf..b55c57fcf 100644
--- a/src/mint/afl-tests/id:001230,src:000004,op:flip4,pos:20444,+cov
+++ b/src/exchange/afl-tests/id:001230,src:000004,op:flip4,pos:20444,+cov
diff --git a/src/mint/afl-tests/id:001231,src:000004,op:flip4,pos:22249,+cov b/src/exchange/afl-tests/id:001231,src:000004,op:flip4,pos:22249,+cov
index f6da540e8..f6da540e8 100644
--- a/src/mint/afl-tests/id:001231,src:000004,op:flip4,pos:22249,+cov
+++ b/src/exchange/afl-tests/id:001231,src:000004,op:flip4,pos:22249,+cov
diff --git a/src/mint/afl-tests/id:001232,src:000004,op:flip4,pos:22380,+cov b/src/exchange/afl-tests/id:001232,src:000004,op:flip4,pos:22380,+cov
index 020367553..020367553 100644
--- a/src/mint/afl-tests/id:001232,src:000004,op:flip4,pos:22380,+cov
+++ b/src/exchange/afl-tests/id:001232,src:000004,op:flip4,pos:22380,+cov
diff --git a/src/mint/afl-tests/id:001233,src:000004,op:flip4,pos:25459,+cov b/src/exchange/afl-tests/id:001233,src:000004,op:flip4,pos:25459,+cov
index a0a5cbdc5..a0a5cbdc5 100644
--- a/src/mint/afl-tests/id:001233,src:000004,op:flip4,pos:25459,+cov
+++ b/src/exchange/afl-tests/id:001233,src:000004,op:flip4,pos:25459,+cov
diff --git a/src/mint/afl-tests/id:001234,src:000004,op:flip4,pos:27094,+cov b/src/exchange/afl-tests/id:001234,src:000004,op:flip4,pos:27094,+cov
index 19f230d0c..19f230d0c 100644
--- a/src/mint/afl-tests/id:001234,src:000004,op:flip4,pos:27094,+cov
+++ b/src/exchange/afl-tests/id:001234,src:000004,op:flip4,pos:27094,+cov
diff --git a/src/mint/afl-tests/id:001235,src:000004,op:flip4,pos:28097,+cov b/src/exchange/afl-tests/id:001235,src:000004,op:flip4,pos:28097,+cov
index 8d4aeaa25..8d4aeaa25 100644
--- a/src/mint/afl-tests/id:001235,src:000004,op:flip4,pos:28097,+cov
+++ b/src/exchange/afl-tests/id:001235,src:000004,op:flip4,pos:28097,+cov
diff --git a/src/mint/afl-tests/id:001236,src:000004,op:flip4,pos:28763,+cov b/src/exchange/afl-tests/id:001236,src:000004,op:flip4,pos:28763,+cov
index a8531a72d..a8531a72d 100644
--- a/src/mint/afl-tests/id:001236,src:000004,op:flip4,pos:28763,+cov
+++ b/src/exchange/afl-tests/id:001236,src:000004,op:flip4,pos:28763,+cov
diff --git a/src/mint/afl-tests/id:001237,src:000004,op:flip4,pos:28897,+cov b/src/exchange/afl-tests/id:001237,src:000004,op:flip4,pos:28897,+cov
index 12ffe2886..12ffe2886 100644
--- a/src/mint/afl-tests/id:001237,src:000004,op:flip4,pos:28897,+cov
+++ b/src/exchange/afl-tests/id:001237,src:000004,op:flip4,pos:28897,+cov
diff --git a/src/mint/afl-tests/id:001238,src:000004,op:flip4,pos:29158,+cov b/src/exchange/afl-tests/id:001238,src:000004,op:flip4,pos:29158,+cov
index 46c9cb5d0..46c9cb5d0 100644
--- a/src/mint/afl-tests/id:001238,src:000004,op:flip4,pos:29158,+cov
+++ b/src/exchange/afl-tests/id:001238,src:000004,op:flip4,pos:29158,+cov
diff --git a/src/mint/afl-tests/id:001239,src:000004,op:flip4,pos:29314,+cov b/src/exchange/afl-tests/id:001239,src:000004,op:flip4,pos:29314,+cov
index 23f6d573b..23f6d573b 100644
--- a/src/mint/afl-tests/id:001239,src:000004,op:flip4,pos:29314,+cov
+++ b/src/exchange/afl-tests/id:001239,src:000004,op:flip4,pos:29314,+cov
diff --git a/src/mint/afl-tests/id:001240,src:000004,op:flip4,pos:29379,+cov b/src/exchange/afl-tests/id:001240,src:000004,op:flip4,pos:29379,+cov
index d15412a4d..d15412a4d 100644
--- a/src/mint/afl-tests/id:001240,src:000004,op:flip4,pos:29379,+cov
+++ b/src/exchange/afl-tests/id:001240,src:000004,op:flip4,pos:29379,+cov
diff --git a/src/mint/afl-tests/id:001241,src:000004,op:flip4,pos:30828,+cov b/src/exchange/afl-tests/id:001241,src:000004,op:flip4,pos:30828,+cov
index a6c94b3c9..a6c94b3c9 100644
--- a/src/mint/afl-tests/id:001241,src:000004,op:flip4,pos:30828,+cov
+++ b/src/exchange/afl-tests/id:001241,src:000004,op:flip4,pos:30828,+cov
diff --git a/src/mint/afl-tests/id:001242,src:000004,op:flip4,pos:31450,+cov b/src/exchange/afl-tests/id:001242,src:000004,op:flip4,pos:31450,+cov
index c883d866c..c883d866c 100644
--- a/src/mint/afl-tests/id:001242,src:000004,op:flip4,pos:31450,+cov
+++ b/src/exchange/afl-tests/id:001242,src:000004,op:flip4,pos:31450,+cov
diff --git a/src/mint/afl-tests/id:001243,src:000004,op:flip4,pos:32113,+cov b/src/exchange/afl-tests/id:001243,src:000004,op:flip4,pos:32113,+cov
index 76b9110ec..76b9110ec 100644
--- a/src/mint/afl-tests/id:001243,src:000004,op:flip4,pos:32113,+cov
+++ b/src/exchange/afl-tests/id:001243,src:000004,op:flip4,pos:32113,+cov
diff --git a/src/mint/afl-tests/id:001244,src:000004,op:flip4,pos:32563,+cov b/src/exchange/afl-tests/id:001244,src:000004,op:flip4,pos:32563,+cov
index ddad3915e..ddad3915e 100644
--- a/src/mint/afl-tests/id:001244,src:000004,op:flip4,pos:32563,+cov
+++ b/src/exchange/afl-tests/id:001244,src:000004,op:flip4,pos:32563,+cov
diff --git a/src/mint/afl-tests/id:001245,src:000004,op:flip4,pos:32844,+cov b/src/exchange/afl-tests/id:001245,src:000004,op:flip4,pos:32844,+cov
index ee4227257..ee4227257 100644
--- a/src/mint/afl-tests/id:001245,src:000004,op:flip4,pos:32844,+cov
+++ b/src/exchange/afl-tests/id:001245,src:000004,op:flip4,pos:32844,+cov
diff --git a/src/mint/afl-tests/id:001246,src:000004,op:flip4,pos:33202,+cov b/src/exchange/afl-tests/id:001246,src:000004,op:flip4,pos:33202,+cov
index cb37e5bbe..cb37e5bbe 100644
--- a/src/mint/afl-tests/id:001246,src:000004,op:flip4,pos:33202,+cov
+++ b/src/exchange/afl-tests/id:001246,src:000004,op:flip4,pos:33202,+cov
diff --git a/src/exchange/taler-exchange-aggregator.c b/src/exchange/taler-exchange-aggregator.c
new file mode 100644
index 000000000..3ffce1d3f
--- /dev/null
+++ b/src/exchange/taler-exchange-aggregator.c
@@ -0,0 +1,914 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2016 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+
+/**
+ * @file taler-exchange-aggregator.c
+ * @brief Process that aggregates outgoing transactions and executes them
+ * @author Christian Grothoff
+ *
+ * TODO:
+ * - simplify global_ret: make it a global!
+ * - handle shutdown more nicely (call 'cancel' method on wire transfers)
+ */
+#include "platform.h"
+#include <gnunet/gnunet_util_lib.h>
+#include <jansson.h>
+#include <pthread.h>
+#include "taler_exchangedb_lib.h"
+#include "taler_exchangedb_plugin.h"
+#include "taler_wire_lib.h"
+
+/**
+ * Which currency is used by this exchange?
+ */
+static char *exchange_currency_string;
+
+/**
+ * Which wireformat should be supported by this aggregator?
+ */
+static char *exchange_wireformat;
+
+/**
+ * Base directory of the exchange (global)
+ */
+static char *exchange_directory;
+
+/**
+ * The exchange's configuration (global)
+ */
+static struct GNUNET_CONFIGURATION_Handle *cfg;
+
+/**
+ * Our DB plugin.
+ */
+static struct TALER_EXCHANGEDB_Plugin *db_plugin;
+
+/**
+ * Our wire plugin.
+ */
+static struct TALER_WIRE_Plugin *wire_plugin;
+
+/**
+ * Task for the main #run() function.
+ */
+static struct GNUNET_SCHEDULER_Task *task;
+
+/**
+ * Limit on the number of transactions we aggregate at once.  Note
+ * that the limit must be big enough to ensure that when transactions
+ * of the smallest possible unit are aggregated, they do surpass the
+ * "tiny" threshold beyond which we never trigger a wire transaction!
+ *
+ * TODO: make configurable (via config file or command line option)
+ */
+static unsigned int aggregation_limit = 10000;
+
+
+/**
+ * Load configuration parameters for the exchange
+ * server into the corresponding global variables.
+ *
+ * @param exchange_directory the exchange's directory
+ * @return #GNUNET_OK on success
+ */
+static int
+exchange_serve_process_config (const char *exchange_directory)
+{
+  char *type;
+
+  cfg = TALER_config_load (exchange_directory);
+  if (NULL == cfg)
+  {
+    fprintf (stderr,
+             "Failed to load exchange configuration\n");
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_string (cfg,
+                                             "exchange",
+                                             "currency",
+                                             &exchange_currency_string))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               "exchange",
+                               "currency");
+    return GNUNET_SYSERR;
+  }
+  if (strlen (exchange_currency_string) >= TALER_CURRENCY_LEN)
+  {
+    fprintf (stderr,
+             "Currency `%s' longer than the allowed limit of %u characters.",
+             exchange_currency_string,
+             (unsigned int) TALER_CURRENCY_LEN);
+    return GNUNET_SYSERR;
+  }
+  if (NULL != exchange_wireformat)
+    GNUNET_CONFIGURATION_set_value_string (cfg,
+                                           "exchange",
+                                           "wireformat",
+                                           exchange_wireformat);
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_string (cfg,
+                                             "exchange",
+                                             "wireformat",
+                                             &type))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               "exchange",
+                               "wireformat");
+    return GNUNET_SYSERR;
+  }
+
+  if (NULL ==
+      (db_plugin = TALER_EXCHANGEDB_plugin_load (cfg)))
+  {
+    fprintf (stderr,
+             "Failed to initialize DB subsystem\n");
+    GNUNET_free (type);
+    return GNUNET_SYSERR;
+  }
+
+  if (NULL ==
+      (wire_plugin = TALER_WIRE_plugin_load (cfg,
+                                             type)))
+  {
+    fprintf (stderr,
+             "Failed to load wire plugin for `%s'\n",
+             type);
+    GNUNET_free (type);
+    return GNUNET_SYSERR;
+  }
+  GNUNET_free (type);
+
+  return GNUNET_OK;
+}
+
+
+/**
+ * Information about one aggregation process to
+ * be executed.
+ */
+struct AggregationUnit
+{
+  /**
+   * Public key of the merchant.
+   */
+  struct TALER_MerchantPublicKeyP merchant_pub;
+
+  /**
+   * Total amount to be transferred.
+   */
+  struct TALER_Amount total_amount;
+
+  /**
+   * Hash of @e wire.
+   */
+  struct GNUNET_HashCode h_wire;
+
+  /**
+   * Wire transfer identifier we use.
+   */
+  struct TALER_WireTransferIdentifierRawP wtid;
+
+  /**
+   * Row ID of the transaction that started it all.
+   */
+  unsigned long long row_id;
+
+  /**
+   * The current time.
+   */
+  struct GNUNET_TIME_Absolute execution_time;
+
+  /**
+   * Wire details of the merchant.
+   */
+  json_t *wire;
+
+  /**
+   * Database session for all of our transactions.
+   */
+  struct TALER_EXCHANGEDB_Session *session;
+
+  /**
+   * Wire preparation handle.
+   */
+  struct TALER_WIRE_PrepareHandle *ph;
+
+  /**
+   * Array of #aggregation_limit row_ids from the
+   * aggregation.
+   */
+  unsigned long long *additional_rows;
+
+  /**
+   * Pointer to global return value. Closure for #run().
+   */
+  int *global_ret;
+
+  /**
+   * Offset specifying how many #additional_rows are in use.
+   */
+  unsigned int rows_offset;
+
+  /**
+   * Set to #GNUNET_YES if we have to abort due to failure.
+   */
+  int failed;
+
+};
+
+
+/**
+ * Function called with details about deposits that have been made,
+ * with the goal of executing the corresponding wire transaction.
+ *
+ * @param cls closure with the `struct AggregationUnit`
+ * @param row_id identifies database entry
+ * @param merchant_pub public key of the merchant
+ * @param coin_pub public key of the coin
+ * @param amount_with_fee amount that was deposited including fee
+ * @param deposit_fee amount the exchange gets to keep as transaction fees
+ * @param transaction_id unique transaction ID chosen by the merchant
+ * @param h_contract hash of the contract between merchant and customer
+ * @param wire_deadline by which the merchant adviced that he would like the
+ *        wire transfer to be executed
+ * @param wire wire details for the merchant
+ * @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
+ */
+static int
+deposit_cb (void *cls,
+            unsigned long long row_id,
+            const struct TALER_MerchantPublicKeyP *merchant_pub,
+            const struct TALER_CoinSpendPublicKeyP *coin_pub,
+            const struct TALER_Amount *amount_with_fee,
+            const struct TALER_Amount *deposit_fee,
+            uint64_t transaction_id,
+            const struct GNUNET_HashCode *h_contract,
+            struct GNUNET_TIME_Absolute wire_deadline,
+            const json_t *wire)
+{
+  struct AggregationUnit *au = cls;
+
+  au->merchant_pub = *merchant_pub;
+  if (GNUNET_OK !=
+      TALER_amount_subtract (&au->total_amount,
+                             amount_with_fee,
+                             deposit_fee))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Fatally malformed record at %llu\n",
+                row_id);
+    return GNUNET_SYSERR;
+  }
+  au->row_id = row_id;
+  au->wire = (json_t *) wire;
+  au->execution_time = GNUNET_TIME_absolute_get ();
+  TALER_hash_json (au->wire,
+                   &au->h_wire);
+  json_incref (au->wire);
+  GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_NONCE,
+                              &au->wtid,
+                              sizeof (au->wtid));
+  if (GNUNET_OK !=
+      db_plugin->insert_aggregation_tracking (db_plugin->cls,
+                                              au->session,
+                                              &au->wtid,
+                                              merchant_pub,
+                                              &au->h_wire,
+                                              h_contract,
+                                              transaction_id,
+                                              au->execution_time,
+                                              coin_pub,
+                                              amount_with_fee,
+                                              deposit_fee))
+  {
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_OK !=
+      db_plugin->mark_deposit_done (db_plugin->cls,
+                                    au->session,
+                                    row_id))
+  {
+    GNUNET_break (0);
+    au->failed = GNUNET_YES;
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
+}
+
+
+
+/**
+ * Function called with details about another deposit we
+ * can aggregate into an existing aggregation unit.
+ *
+ * @param cls closure with the `struct AggregationUnit`
+ * @param row_id identifies database entry
+ * @param merchant_pub public key of the merchant
+ * @param coin_pub public key of the coin
+ * @param amount_with_fee amount that was deposited including fee
+ * @param deposit_fee amount the exchange gets to keep as transaction fees
+ * @param transaction_id unique transaction ID chosen by the merchant
+ * @param h_contract hash of the contract between merchant and customer
+ * @param wire_deadline by which the merchant adviced that he would like the
+ *        wire transfer to be executed
+ * @param wire wire details for the merchant
+ * @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
+ */
+static int
+aggregate_cb (void *cls,
+              unsigned long long row_id,
+              const struct TALER_MerchantPublicKeyP *merchant_pub,
+              const struct TALER_CoinSpendPublicKeyP *coin_pub,
+              const struct TALER_Amount *amount_with_fee,
+              const struct TALER_Amount *deposit_fee,
+              uint64_t transaction_id,
+              const struct GNUNET_HashCode *h_contract,
+              struct GNUNET_TIME_Absolute wire_deadline,
+              const json_t *wire)
+{
+  struct AggregationUnit *au = cls;
+  struct TALER_Amount delta;
+
+  GNUNET_break (0 ==
+                memcmp (&au->merchant_pub,
+                        merchant_pub,
+                        sizeof (struct TALER_MerchantPublicKeyP)));
+  /* compute contribution of this coin after fees */
+  if (GNUNET_OK !=
+      TALER_amount_subtract (&delta,
+                             amount_with_fee,
+                             deposit_fee))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Fatally malformed record at %llu\n",
+                row_id);
+    return GNUNET_SYSERR;
+  }
+  /* add to total */
+  if (GNUNET_OK !=
+      TALER_amount_add (&au->total_amount,
+                        &au->total_amount,
+                        &delta))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Overflow or currency incompatibility during aggregation at %llu\n",
+                row_id);
+    /* Skip this one, but keep going! */
+    return GNUNET_OK;
+  }
+  if (au->rows_offset >= aggregation_limit)
+  {
+    /* Bug: we asked for at most #aggregation_limit results! */
+    GNUNET_break (0);
+    /* Skip this one, but keep going. */
+    return GNUNET_OK;
+  }
+  if (NULL == au->additional_rows)
+    au->additional_rows = GNUNET_new_array (aggregation_limit,
+                                            unsigned long long);
+  /* "append" to our list of rows */
+  au->additional_rows[au->rows_offset++] = row_id;
+  /* insert into aggregation tracking table */
+  if (GNUNET_OK !=
+      db_plugin->insert_aggregation_tracking (db_plugin->cls,
+                                              au->session,
+                                              &au->wtid,
+                                              merchant_pub,
+                                              &au->h_wire,
+                                              h_contract,
+                                              transaction_id,
+                                              au->execution_time,
+                                              coin_pub,
+                                              amount_with_fee,
+                                              deposit_fee))
+  {
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_OK !=
+      db_plugin->mark_deposit_done (db_plugin->cls,
+                                    au->session,
+                                    row_id))
+  {
+    GNUNET_break (0);
+    au->failed = GNUNET_YES;
+    return GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Function to be called with the prepared transfer data.
+ *
+ * @param cls closure with the `struct AggregationUnit`
+ * @param buf transaction data to persist, NULL on error
+ * @param buf_size number of bytes in @a buf, 0 on error
+ */
+static void
+prepare_cb (void *cls,
+            const char *buf,
+            size_t buf_size);
+
+
+/**
+ * Main work function that queries the DB and aggregates transactions
+ * into larger wire transfers.
+ *
+ * @param cls pointer to an `int` which we will return from main()
+ * @param tc scheduler context
+ */
+static void
+run_aggregation (void *cls,
+                 const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  int *global_ret = cls;
+  struct TALER_EXCHANGEDB_Session *session;
+  struct AggregationUnit *au;
+  unsigned int i;
+  int ret;
+
+  if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
+    return;
+  if (NULL == (session = db_plugin->get_session (db_plugin->cls,
+                                                 GNUNET_NO)))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Failed to obtain database session!\n");
+    *global_ret = GNUNET_SYSERR;
+    return;
+  }
+  if (GNUNET_OK !=
+      db_plugin->start (db_plugin->cls,
+                        session))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Failed to start database transaction!\n");
+    *global_ret = GNUNET_SYSERR;
+    return;
+  }
+  au = GNUNET_new (struct AggregationUnit);
+  au->session = session;
+  ret = db_plugin->get_ready_deposit (db_plugin->cls,
+                                      session,
+                                      &deposit_cb,
+                                      au);
+  if (GNUNET_OK != ret)
+  {
+    GNUNET_free (au);
+    db_plugin->rollback (db_plugin->cls,
+                         session);
+    if (0 != ret)
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Failed to execute deposit iteration!\n");
+      *global_ret = GNUNET_SYSERR;
+      return;
+    }
+    /* nothing to do, sleep for a minute and try again */
+    task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_MINUTES,
+                                         &run_aggregation,
+                                         global_ret);
+    return;
+  }
+  /* Now try to find other deposits to aggregate */
+  ret = db_plugin->iterate_matching_deposits (db_plugin->cls,
+                                              session,
+                                              &au->h_wire,
+                                              &au->merchant_pub,
+                                              &aggregate_cb,
+                                              au,
+                                              aggregation_limit);
+  if ( (GNUNET_SYSERR == ret) ||
+       (GNUNET_YES == au->failed) )
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Failed to execute deposit iteration!\n");
+    GNUNET_free_non_null (au->additional_rows);
+    GNUNET_free (au);
+    db_plugin->rollback (db_plugin->cls,
+                         session);
+    *global_ret = GNUNET_SYSERR;
+    return;
+  }
+  /* Round to the unit supported by the wire transfer method */
+  GNUNET_assert (GNUNET_SYSERR !=
+                 wire_plugin->amount_round (wire_plugin->cls,
+                                            &au->total_amount));
+  /* Check if after rounding down, we still have an amount to transfer */
+  if ( (0 == au->total_amount.value) &&
+       (0 == au->total_amount.fraction) )
+  {
+    /* Rollback ongoing transaction, as we will not use the respective
+       WTID and thus need to remove the tracking data */
+    db_plugin->rollback (db_plugin->cls,
+                         session);
+    /* Start another transaction to mark all* of the selected deposits
+       *as minor! */
+    if (GNUNET_OK !=
+        db_plugin->start (db_plugin->cls,
+                          session))
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Failed to start database transaction!\n");
+      *global_ret = GNUNET_SYSERR;
+      GNUNET_free_non_null (au->additional_rows);
+      GNUNET_free (au);
+      return;
+    }
+    /* Mark transactions by row_id as minor */
+    ret = GNUNET_OK;
+    if (GNUNET_OK !=
+        db_plugin->mark_deposit_tiny (db_plugin->cls,
+                                      session,
+                                      au->row_id))
+      ret = GNUNET_SYSERR;
+    else
+      for (i=0;i<au->rows_offset;i++)
+        if (GNUNET_OK !=
+            db_plugin->mark_deposit_tiny (db_plugin->cls,
+                                          session,
+                                          au->additional_rows[i]))
+          ret = GNUNET_SYSERR;
+    /* commit */
+    if (GNUNET_OK !=
+        db_plugin->commit (db_plugin->cls,
+                           session))
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                  "Failed to commit database transaction!\n");
+    }
+    GNUNET_free_non_null (au->additional_rows);
+    GNUNET_free (au);
+    /* start again */
+    task = GNUNET_SCHEDULER_add_now (&run_aggregation,
+                                     global_ret);
+    return;
+  }
+  au->global_ret = global_ret;
+  au->ph = wire_plugin->prepare_wire_transfer (wire_plugin->cls,
+                                               au->wire,
+                                               &au->total_amount,
+                                               &au->wtid,
+                                               &prepare_cb,
+                                               au);
+  /* FIXME: currently we have no clean-up plan on
+     shutdown to call prepare_wire_transfer_cancel!
+     Maybe make 'au' global? */
+  if (NULL == au->ph)
+  {
+    GNUNET_break (0); /* why? how to best recover? */
+    db_plugin->rollback (db_plugin->cls,
+                         session);
+    GNUNET_free_non_null (au->additional_rows);
+    GNUNET_free (au);
+    /* start again */
+    task = GNUNET_SCHEDULER_add_now (&run_aggregation,
+                                     global_ret);
+    return;
+  }
+  /* otherwise we continue with #prepare_cb(), see below */
+}
+
+
+/**
+ * Execute the wire transfers that we have committed to
+ * do.
+ *
+ * @param cls pointer to an `int` which we will return from main()
+ * @param tc scheduler context
+ */
+static void
+run_transfers (void *cls,
+               const struct GNUNET_SCHEDULER_TaskContext *tc);
+
+
+/**
+ * Function to be called with the prepared transfer data.
+ *
+ * @param cls closure with the `struct AggregationUnit`
+ * @param buf transaction data to persist, NULL on error
+ * @param buf_size number of bytes in @a buf, 0 on error
+ */
+static void
+prepare_cb (void *cls,
+            const char *buf,
+            size_t buf_size)
+{
+  struct AggregationUnit *au = cls;
+  int *global_ret = au->global_ret;
+  struct TALER_EXCHANGEDB_Session *session = au->session;
+
+  GNUNET_free_non_null (au->additional_rows);
+  GNUNET_free (au);
+  if (NULL == buf)
+  {
+    GNUNET_break (0); /* why? how to best recover? */
+    db_plugin->rollback (db_plugin->cls,
+                         session);
+    /* start again */
+    task = GNUNET_SCHEDULER_add_now (&run_aggregation,
+                                     global_ret);
+    return;
+  }
+
+  /* Commit our intention to execute the wire transfer! */
+  if (GNUNET_OK !=
+      db_plugin->wire_prepare_data_insert (db_plugin->cls,
+                                           session,
+                                           exchange_wireformat,
+                                           buf,
+                                           buf_size))
+  {
+    GNUNET_break (0); /* why? how to best recover? */
+    db_plugin->rollback (db_plugin->cls,
+                         session);
+    /* start again */
+    task = GNUNET_SCHEDULER_add_now (&run_aggregation,
+                                     global_ret);
+    return;
+  }
+
+  /* Now we can finally commit the overall transaction, as we are
+     again consistent if all of this passes. */
+  if (GNUNET_OK !=
+      db_plugin->commit (db_plugin->cls,
+                         session))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "Failed to commit database transaction!\n");
+    /* try again */
+    task = GNUNET_SCHEDULER_add_now (&run_aggregation,
+                                     global_ret);
+    return;
+  }
+
+  /* run alternative task: actually do wire transfer! */
+  task = GNUNET_SCHEDULER_add_now (&run_transfers,
+                                   &global_ret);
+}
+
+
+/**
+ * Data we keep to #run_transfers().
+ */
+struct WirePrepareData
+{
+
+  /**
+   * Database session for all of our transactions.
+   */
+  struct TALER_EXCHANGEDB_Session *session;
+
+  /**
+   * Wire execution handle.
+   */
+  struct TALER_WIRE_ExecuteHandle *eh;
+
+  /**
+   * Pointer to global return value. Closure for #run().
+   */
+  int *global_ret;
+
+
+  /**
+   * Row ID of the transfer.
+   */
+  unsigned long long row_id;
+
+};
+
+
+/**
+ * Function called with the result from the execute step.
+ *
+ * @param cls closure with the `struct WirePrepareData`
+ * @param success #GNUNET_OK on success, #GNUNET_SYSERR on failure
+ * @param emsg NULL on success, otherwise an error message
+ */
+static void
+wire_confirm_cb (void *cls,
+                 int success,
+                 const char *emsg)
+{
+  struct WirePrepareData *wpd = cls;
+  int *global_ret = wpd->global_ret;
+  struct TALER_EXCHANGEDB_Session *session = wpd->session;
+
+  wpd->eh = NULL;
+  if (GNUNET_SYSERR == success)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Wire transaction failed: %s\n",
+                emsg);
+    db_plugin->rollback (db_plugin->cls,
+                         session);
+    *global_ret = GNUNET_SYSERR;
+    GNUNET_free (wpd);
+    return;
+  }
+  if (GNUNET_OK !=
+      db_plugin->wire_prepare_data_mark_finished (db_plugin->cls,
+                                                  session,
+                                                  wpd->row_id))
+  {
+    GNUNET_break (0); /* why!? */
+    db_plugin->rollback (db_plugin->cls,
+                         session);
+    *global_ret = GNUNET_SYSERR;
+    GNUNET_free (wpd);
+    return;
+  }
+  GNUNET_free (wpd);
+  if (GNUNET_OK !=
+      db_plugin->commit (db_plugin->cls,
+                         session))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "Failed to commit database transaction!\n");
+    /* try again */
+    task = GNUNET_SCHEDULER_add_now (&run_aggregation,
+                                     global_ret);
+    return;
+  }
+  /* continue with #run_transfers(), just to guard
+     against the unlikely case that there are more. */
+  task = GNUNET_SCHEDULER_add_now (&run_transfers,
+                                   &global_ret);
+
+}
+
+
+/**
+ * Callback with data about a prepared transaction.
+ *
+ * @param cls closure with the `struct WirePrepareData`
+ * @param rowid row identifier used to mark prepared transaction as done
+ * @param buf transaction data that was persisted, NULL on error
+ * @param buf_size number of bytes in @a buf, 0 on error
+ */
+static void
+wire_prepare_cb (void *cls,
+                 unsigned long long rowid,
+                 const char *buf,
+                 size_t buf_size)
+{
+  struct WirePrepareData *wpd = cls;
+  int *global_ret = wpd->global_ret;
+
+  wpd->row_id = rowid;
+  wpd->eh = wire_plugin->execute_wire_transfer (wire_plugin->cls,
+                                                buf,
+                                                buf_size,
+                                                &wire_confirm_cb,
+                                                wpd);
+  /* FIXME: currently we have no clean-up plan on
+     shutdown to call execute_wire_transfer_cancel!
+     Maybe make 'wpd' global? */
+  if (NULL == wpd->eh)
+  {
+    GNUNET_break (0); /* why? how to best recover? */
+    db_plugin->rollback (db_plugin->cls,
+                         wpd->session);
+    *global_ret = GNUNET_SYSERR;
+    GNUNET_free (wpd);
+    return;
+  }
+}
+
+
+/**
+ * Execute the wire transfers that we have committed to
+ * do.
+ *
+ * @param cls pointer to an `int` which we will return from main()
+ * @param tc scheduler context
+ */
+static void
+run_transfers (void *cls,
+               const struct GNUNET_SCHEDULER_TaskContext *tc)
+{
+  int *global_ret = cls;
+  int ret;
+  struct WirePrepareData *wpd;
+  struct TALER_EXCHANGEDB_Session *session;
+
+  if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
+    return;
+  if (NULL == (session = db_plugin->get_session (db_plugin->cls,
+                                                 GNUNET_NO)))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Failed to obtain database session!\n");
+    *global_ret = GNUNET_SYSERR;
+    return;
+  }
+  if (GNUNET_OK !=
+      db_plugin->start (db_plugin->cls,
+                        session))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Failed to start database transaction!\n");
+    *global_ret = GNUNET_SYSERR;
+    return;
+  }
+  wpd = GNUNET_new (struct WirePrepareData);
+  wpd->session = session;
+  wpd->global_ret = global_ret;
+  ret = db_plugin->wire_prepare_data_get (db_plugin->cls,
+                                          session,
+                                          exchange_wireformat,
+                                          &wire_prepare_cb,
+                                          wpd);
+  if (GNUNET_SYSERR == ret)
+  {
+    GNUNET_break (0); /* why? how to best recover? */
+    db_plugin->rollback (db_plugin->cls,
+                         session);
+    *global_ret = GNUNET_SYSERR;
+    GNUNET_free (wpd);
+    return;
+  }
+  if (GNUNET_NO == ret)
+  {
+    /* no more prepared wire transfers, go back to aggregation! */
+    db_plugin->rollback (db_plugin->cls,
+                         session);
+    task = GNUNET_SCHEDULER_add_now (&run_aggregation,
+                                     global_ret);
+    GNUNET_free (wpd);
+    return;
+  }
+  /* otherwise, continues in #wire_prepare_cb() */
+}
+
+
+/**
+ * The main function of the taler-exchange-httpd server ("the exchange").
+ *
+ * @param argc number of arguments from the command line
+ * @param argv command line arguments
+ * @return 0 ok, 1 on error
+ */
+int
+main (int argc,
+      char *const *argv)
+{
+  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+    {'d', "exchange-dir", "DIR",
+     "exchange directory with configuration and keys for operating the exchange", 1,
+     &GNUNET_GETOPT_set_filename, &exchange_directory},
+    {'f', "format", "WIREFORMAT",
+     "wireformat to use, overrides WIREFORMAT option in [exchange] section", 1,
+     &GNUNET_GETOPT_set_filename, &exchange_wireformat},
+    TALER_GETOPT_OPTION_HELP ("background process that aggregates and executes wire transfers to merchants"),
+    GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
+    GNUNET_GETOPT_OPTION_END
+  };
+  int ret = GNUNET_OK;
+
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_log_setup ("taler-exchange-aggregator",
+                                   "INFO",
+                                   NULL));
+  if (0 >=
+      GNUNET_GETOPT_run ("taler-exchange-aggregator",
+                         options,
+                         argc, argv))
+    return 1;
+  if (NULL == exchange_directory)
+  {
+    fprintf (stderr,
+             "Exchange directory not specified\n");
+    return 1;
+  }
+  if (GNUNET_OK !=
+      exchange_serve_process_config (exchange_directory))
+  {
+    return 1;
+  }
+
+  GNUNET_SCHEDULER_run (&run_transfers, &ret);
+
+  TALER_EXCHANGEDB_plugin_unload (db_plugin);
+  TALER_WIRE_plugin_unload (wire_plugin);
+  return (GNUNET_SYSERR == ret) ? 1 : 0;
+}
+
+/* end of taler-exchange-aggregator.c */
diff --git a/src/exchange/taler-exchange-httpd.c b/src/exchange/taler-exchange-httpd.c
new file mode 100644
index 000000000..c16e26409
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd.c
@@ -0,0 +1,749 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+
+/**
+ * @file taler-exchange-httpd.c
+ * @brief Serve the HTTP interface of the exchange
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <gnunet/gnunet_util_lib.h>
+#include <jansson.h>
+#include <microhttpd.h>
+#include <pthread.h>
+#include "taler-exchange-httpd_parsing.h"
+#include "taler-exchange-httpd_mhd.h"
+#include "taler-exchange-httpd_admin.h"
+#include "taler-exchange-httpd_deposit.h"
+#include "taler-exchange-httpd_reserve.h"
+#include "taler-exchange-httpd_wire.h"
+#include "taler-exchange-httpd_refresh.h"
+#include "taler-exchange-httpd_tracking.h"
+#include "taler-exchange-httpd_keystate.h"
+#if HAVE_DEVELOPER
+#include "taler-exchange-httpd_test.h"
+#endif
+#include "taler_exchangedb_plugin.h"
+#include "taler-exchange-httpd_validation.h"
+
+/**
+ * Which currency is used by this exchange?
+ */
+char *TMH_exchange_currency_string;
+
+/**
+ * Should we return "Connection: close" in each response?
+ */
+int TMH_exchange_connection_close;
+
+/**
+ * Base directory of the exchange (global)
+ */
+char *TMH_exchange_directory;
+
+/**
+ * The exchange's configuration (global)
+ */
+struct GNUNET_CONFIGURATION_Handle *cfg;
+
+/**
+ * Master public key (according to the
+ * configuration in the exchange directory).
+ */
+struct GNUNET_CRYPTO_EddsaPublicKey TMH_master_public_key;
+
+/**
+ * Our DB plugin.
+ */
+struct TALER_EXCHANGEDB_Plugin *TMH_plugin;
+
+/**
+ * Are we running in test mode?
+ */
+int TMH_test_mode;
+
+/**
+ * Default timeout in seconds for HTTP requests.
+ */
+static unsigned int connection_timeout = 30;
+
+/**
+ * The HTTP Daemon.
+ */
+static struct MHD_Daemon *mydaemon;
+
+/**
+ * Port to run the daemon on.
+ */
+static uint16_t serve_port;
+
+
+/**
+ * Function called whenever MHD is done with a request.  If the
+ * request was a POST, we may have stored a `struct Buffer *` in the
+ * @a con_cls that might still need to be cleaned up.  Call the
+ * respective function to free the memory.
+ *
+ * @param cls client-defined closure
+ * @param connection connection handle
+ * @param con_cls value as set by the last call to
+ *        the #MHD_AccessHandlerCallback
+ * @param toe reason for request termination
+ * @see #MHD_OPTION_NOTIFY_COMPLETED
+ * @ingroup request
+ */
+static void
+handle_mhd_completion_callback (void *cls,
+                                struct MHD_Connection *connection,
+                                void **con_cls,
+                                enum MHD_RequestTerminationCode toe)
+{
+  if (NULL == *con_cls)
+    return;
+  TMH_PARSE_post_cleanup_callback (*con_cls);
+  *con_cls = NULL;
+}
+
+
+/**
+ * Handle a request coming from libmicrohttpd.
+ *
+ * @param cls closure for MHD daemon (unused)
+ * @param connection the connection
+ * @param url the requested url
+ * @param method the method (POST, GET, ...)
+ * @param version HTTP version (ignored)
+ * @param upload_data request data
+ * @param upload_data_size size of @a upload_data in bytes
+ * @param con_cls closure for request (a `struct Buffer *`)
+ * @return MHD result code
+ */
+static int
+handle_mhd_request (void *cls,
+                    struct MHD_Connection *connection,
+                    const char *url,
+                    const char *method,
+                    const char *version,
+                    const char *upload_data,
+                    size_t *upload_data_size,
+                    void **con_cls)
+{
+  static struct TMH_RequestHandler handlers[] =
+    {
+      /* Landing page, tell humans to go away. */
+      { "/", MHD_HTTP_METHOD_GET, "text/plain",
+        "Hello, I'm the Taler exchange. This HTTP server is not for humans.\n", 0,
+        &TMH_MHD_handler_static_response, MHD_HTTP_OK },
+      /* /robots.txt: disallow everything */
+      { "/robots.txt", MHD_HTTP_METHOD_GET, "text/plain",
+        "User-agent: *\nDisallow: /\n", 0,
+        &TMH_MHD_handler_static_response, MHD_HTTP_OK },
+      /* AGPL licensing page, redirect to source. As per the AGPL-license,
+         every deployment is required to offer the user a download of the
+         source. We make this easy by including a redirect to the source
+         here. */
+      { "/agpl", MHD_HTTP_METHOD_GET, "text/plain",
+        NULL, 0,
+        &TMH_MHD_handler_agpl_redirect, MHD_HTTP_FOUND },
+
+      /* Return key material and fundamental properties for this exchange */
+      { "/keys", MHD_HTTP_METHOD_GET, "application/json",
+        NULL, 0,
+        &TMH_KS_handler_keys, MHD_HTTP_OK },
+      { "/keys", NULL, "text/plain",
+        "Only GET is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      /* Requests for wiring information */
+      { "/wire", MHD_HTTP_METHOD_GET, "application/json",
+        NULL, 0,
+        &TMH_WIRE_handler_wire, MHD_HTTP_OK },
+      { "/wire", NULL, "text/plain",
+        "Only GET is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      { "/wire/test", MHD_HTTP_METHOD_GET, "application/json",
+        NULL, 0,
+        &TMH_WIRE_handler_wire_test, MHD_HTTP_FOUND },
+      { "/wire/test", NULL, "text/plain",
+        "Only GET is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      { "/wire/sepa", MHD_HTTP_METHOD_GET, "application/json",
+        NULL, 0,
+        &TMH_WIRE_handler_wire_sepa, MHD_HTTP_OK },
+      { "/wire/sepa", NULL, "text/plain",
+        "Only GET is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      /* Withdrawing coins / interaction with reserves */
+      { "/reserve/status", MHD_HTTP_METHOD_GET, "application/json",
+        NULL, 0,
+        &TMH_RESERVE_handler_reserve_status, MHD_HTTP_OK },
+      { "/reserve/status", NULL, "text/plain",
+        "Only GET is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      { "/reserve/withdraw", MHD_HTTP_METHOD_POST, "application/json",
+        NULL, 0,
+        &TMH_RESERVE_handler_reserve_withdraw, MHD_HTTP_OK },
+      { "/reserve/withdraw", NULL, "text/plain",
+        "Only POST is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      /* Depositing coins */
+      { "/deposit", MHD_HTTP_METHOD_POST, "application/json",
+        NULL, 0,
+        &TMH_DEPOSIT_handler_deposit, MHD_HTTP_OK },
+      { "/deposit", NULL, "text/plain",
+        "Only POST is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      /* Dealing with change */
+      { "/refresh/melt", MHD_HTTP_METHOD_POST, "application/json",
+        NULL, 0,
+        &TMH_REFRESH_handler_refresh_melt, MHD_HTTP_OK },
+      { "/refresh/melt", NULL, "text/plain",
+        "Only POST is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      { "/refresh/reveal", MHD_HTTP_METHOD_POST, "application/json",
+        NULL, 0,
+        &TMH_REFRESH_handler_refresh_reveal, MHD_HTTP_OK },
+      { "/refresh/reveal", NULL, "text/plain",
+        "Only POST is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      { "/refresh/reveal", MHD_HTTP_METHOD_POST, "application/json",
+        NULL, 0,
+        &TMH_REFRESH_handler_refresh_reveal, MHD_HTTP_OK },
+      { "/refresh/reveal", NULL, "text/plain",
+        "Only POST is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      { "/refresh/link", MHD_HTTP_METHOD_GET, "application/json",
+        NULL, 0,
+        &TMH_REFRESH_handler_refresh_link, MHD_HTTP_OK },
+      { "/refresh/link", NULL, "text/plain",
+        "Only GET is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      /* FIXME: maybe conditionally compile these? */
+      { "/admin/add/incoming", MHD_HTTP_METHOD_POST, "application/json",
+        NULL, 0,
+        &TMH_ADMIN_handler_admin_add_incoming, MHD_HTTP_OK },
+      { "/admin/add/incoming", NULL, "text/plain",
+        "Only POST is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      { "/wire/deposits", MHD_HTTP_METHOD_GET, "application/json",
+        NULL, 0,
+        &TMH_TRACKING_handler_wire_deposits, MHD_HTTP_OK },
+      { "/wire/deposits", NULL, "text/plain",
+        "Only GET is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+      { "/deposit/wtid", MHD_HTTP_METHOD_POST, "application/json",
+        NULL, 0,
+        &TMH_TRACKING_handler_deposit_wtid, MHD_HTTP_OK },
+      { "/deposit/wtid", NULL, "text/plain",
+        "Only POST is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+#if HAVE_DEVELOPER
+      /* Client crypto-interoperability test functions */
+      { "/test", MHD_HTTP_METHOD_POST, "application/json",
+        NULL, 0,
+        &TMH_TEST_handler_test, MHD_HTTP_OK },
+      { "/test", NULL, "text/plain",
+        "Only POST is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      { "/test/base32", MHD_HTTP_METHOD_POST, "application/json",
+	NULL, 0,
+	&TMH_TEST_handler_test_base32, MHD_HTTP_OK },
+      { "/test/base32", NULL, "text/plain",
+        "Only POST is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      { "/test/encrypt", MHD_HTTP_METHOD_POST, "application/json",
+        NULL, 0,
+	&TMH_TEST_handler_test_encrypt, MHD_HTTP_OK },
+      { "/test/encrypt", NULL, "text/plain",
+        "Only POST is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      { "/test/hkdf", MHD_HTTP_METHOD_POST, "application/json",
+	NULL, 0,
+	&TMH_TEST_handler_test_hkdf, MHD_HTTP_OK },
+      { "/test/hkdf", NULL, "text/plain",
+        "Only POST is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      { "/test/ecdhe", MHD_HTTP_METHOD_POST, "application/json",
+	NULL, 0,
+	&TMH_TEST_handler_test_ecdhe, MHD_HTTP_OK },
+      { "/test/ecdhe", NULL, "text/plain",
+        "Only POST is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      { "/test/eddsa", MHD_HTTP_METHOD_POST, "application/json",
+	NULL, 0,
+	&TMH_TEST_handler_test_eddsa, MHD_HTTP_OK },
+      { "/test/eddsa", NULL, "text/plain",
+        "Only POST is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      { "/test/rsa/get", MHD_HTTP_METHOD_GET, "application/json",
+	NULL, 0,
+	&TMH_TEST_handler_test_rsa_get, MHD_HTTP_OK },
+      { "/test/rsa/get", NULL, "text/plain",
+        "Only GET is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      { "/test/rsa/sign", MHD_HTTP_METHOD_POST, "application/json",
+	NULL, 0,
+	&TMH_TEST_handler_test_rsa_sign, MHD_HTTP_OK },
+      { "/test/rsa/sign", NULL, "text/plain",
+        "Only POST is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+
+      { "/test/transfer", MHD_HTTP_METHOD_POST, "application/json",
+	NULL, 0,
+	&TMH_TEST_handler_test_transfer, MHD_HTTP_OK },
+      { "/test/transfer", NULL, "text/plain",
+        "Only POST is allowed", 0,
+        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
+#endif
+
+      { NULL, NULL, NULL, NULL, 0, 0 }
+    };
+  static struct TMH_RequestHandler h404 =
+    {
+      "", NULL, "text/html",
+      "<html><title>404: not found</title></html>", 0,
+      &TMH_MHD_handler_static_response, MHD_HTTP_NOT_FOUND
+    };
+  struct TMH_RequestHandler *rh;
+  unsigned int i;
+
+  GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+              "Handling request for URL '%s'\n",
+              url);
+  for (i=0;NULL != handlers[i].url;i++)
+  {
+    rh = &handlers[i];
+    if ( (0 == strcasecmp (url,
+                           rh->url)) &&
+         ( (NULL == rh->method) ||
+           (0 == strcasecmp (method,
+                             rh->method)) ) )
+      return rh->handler (rh,
+                          connection,
+                          con_cls,
+                          upload_data,
+                          upload_data_size);
+  }
+  return TMH_MHD_handler_static_response (&h404,
+                                          connection,
+                                          con_cls,
+                                          upload_data,
+                                          upload_data_size);
+}
+
+
+/**
+ * Load configuration parameters for the exchange
+ * server into the corresponding global variables.
+ *
+ * @param exchange_directory the exchange's directory
+ * @return #GNUNET_OK on success
+ */
+static int
+exchange_serve_process_config (const char *exchange_directory)
+{
+  unsigned long long port;
+  char *TMH_master_public_key_str;
+
+  cfg = TALER_config_load (exchange_directory);
+  if (NULL == cfg)
+  {
+    fprintf (stderr,
+             "Failed to load exchange configuration\n");
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_string (cfg,
+                                             "exchange",
+                                             "currency",
+                                             &TMH_exchange_currency_string))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               "exchange",
+                               "currency");
+    return GNUNET_SYSERR;
+  }
+  if (strlen (TMH_exchange_currency_string) >= TALER_CURRENCY_LEN)
+  {
+    fprintf (stderr,
+             "Currency `%s' longer than the allowed limit of %u characters.",
+             TMH_exchange_currency_string,
+             (unsigned int) TALER_CURRENCY_LEN);
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_OK !=
+      TMH_VALIDATION_init (cfg))
+    return GNUNET_SYSERR;
+
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_string (cfg,
+                                             "exchange",
+                                             "master_public_key",
+                                             &TMH_master_public_key_str))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               "exchange",
+                               "master_public_key");
+    TMH_VALIDATION_done ();
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_eddsa_public_key_from_string (TMH_master_public_key_str,
+                                                  strlen (TMH_master_public_key_str),
+                                                  &TMH_master_public_key))
+  {
+    fprintf (stderr,
+             "Invalid master public key given in exchange configuration.");
+    GNUNET_free (TMH_master_public_key_str);
+    TMH_VALIDATION_done ();
+    return GNUNET_SYSERR;
+  }
+  GNUNET_free (TMH_master_public_key_str);
+
+  if (NULL ==
+      (TMH_plugin = TALER_EXCHANGEDB_plugin_load (cfg)))
+  {
+    fprintf (stderr,
+             "Failed to initialize DB subsystem\n");
+    TMH_VALIDATION_done ();
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_YES ==
+      GNUNET_CONFIGURATION_get_value_yesno (cfg,
+                                            "exchange",
+                                            "TESTRUN"))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "Running in TEST mode! Database contents will not persist!\n");
+    TMH_test_mode = GNUNET_YES;
+    TMH_plugin->create_tables (TMH_plugin->cls,
+                               GNUNET_YES);
+  }
+
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_number (cfg,
+                                             "exchange",
+                                             "port",
+                                             &port))
+  {
+    GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
+                               "exchange",
+                               "port",
+                               "port number required");
+    TMH_VALIDATION_done ();
+    return GNUNET_SYSERR;
+  }
+
+  if ( (0 == port) ||
+       (port > UINT16_MAX) )
+  {
+    fprintf (stderr,
+             "Invalid configuration (value out of range): %llu is not a valid port\n",
+             port);
+    TMH_VALIDATION_done ();
+    return GNUNET_SYSERR;
+  }
+  serve_port = (uint16_t) port;
+
+  return GNUNET_OK;
+}
+
+
+/* Developer logic for supporting the `-f' option. */
+#if HAVE_DEVELOPER
+
+/**
+ * Option `-f' (specifies an input file to give to the HTTP server).
+ */
+static char *input_filename;
+
+
+/**
+ * Run 'nc' or 'ncat' as a fake HTTP client using #input_filename
+ * as the input for the request.  If launching the client worked,
+ * run the #TMH_KS_loop() event loop as usual.
+ *
+ * @return #GNUNET_OK
+ */
+static int
+run_fake_client ()
+{
+  pid_t cld;
+  char ports[6];
+  int fd;
+  int ret;
+  int status;
+
+  fd = open (input_filename, O_RDONLY);
+  if (-1 == fd)
+  {
+    fprintf (stderr,
+             "Failed to open `%s': %s\n",
+             input_filename,
+             strerror (errno));
+    return GNUNET_SYSERR;
+  }
+  /* Fake HTTP client request with #input_filename as input.
+     We do this using the nc tool. */
+  GNUNET_snprintf (ports,
+                   sizeof (ports),
+                   "%u",
+                   serve_port);
+  if (0 == (cld = fork()))
+  {
+    GNUNET_break (0 == close (0));
+    GNUNET_break (0 == dup2 (fd, 0));
+    GNUNET_break (0 == close (fd));
+    if ( (0 != execlp ("nc",
+                       "nc",
+                       "localhost",
+                       ports,
+                       "-w", "30",
+                       NULL)) &&
+         (0 != execlp ("ncat",
+                       "ncat",
+                       "localhost",
+                       ports,
+                       "-i", "30",
+                       NULL)) )
+    {
+      fprintf (stderr,
+               "Failed to run both `nc' and `ncat': %s\n",
+               strerror (errno));
+    }
+    _exit (1);
+  }
+  /* parent process */
+  GNUNET_break (0 == close (fd));
+  ret = TMH_KS_loop ();
+  if (cld != waitpid (cld, &status, 0))
+    fprintf (stderr,
+             "Waiting for `nc' child failed: %s\n",
+             strerror (errno));
+  return ret;
+}
+
+
+/**
+ * Signature of the callback used by MHD to notify the application
+ * about completed connections.  If we are running in test-mode with
+ * an #input_filename, this function is used to terminate the HTTPD
+ * after the first request has been processed.
+ *
+ * @param cls client-defined closure, NULL
+ * @param connection connection handle (ignored)
+ * @param socket_context socket-specific pointer (ignored)
+ * @param toe reason for connection notification
+ */
+static void
+connection_done (void *cls,
+                 struct MHD_Connection *connection,
+                 void **socket_context,
+                 enum MHD_ConnectionNotificationCode toe)
+{
+  /* We only act if the connection is closed. */
+  if (MHD_CONNECTION_NOTIFY_CLOSED != toe)
+    return;
+  /* This callback is also present if the option wasn't, so
+     make sure the option was actually set. */
+  if (NULL == input_filename)
+    return;
+  /* We signal ourselves to terminate. */
+  if (0 != kill (getpid(),
+                 SIGTERM))
+    GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR,
+                         "kill");
+}
+
+/* end of HAVE_DEVELOPER */
+#endif
+
+
+/**
+ * Function called for logging by MHD.
+ *
+ * @param cls closure, NULL
+ * @param fm format string (`printf()`-style)
+ * @param ap arguments to @a fm
+ */
+static void
+handle_mhd_logs (void *cls,
+                 const char *fm,
+                 va_list ap)
+{
+  char buf[2048];
+
+  vsnprintf (buf,
+             sizeof (buf),
+             fm,
+             ap);
+  GNUNET_log_from (GNUNET_ERROR_TYPE_WARNING,
+                   "libmicrohttpd",
+                   "%s",
+                   buf);
+}
+
+
+/**
+ * The main function of the taler-exchange-httpd server ("the exchange").
+ *
+ * @param argc number of arguments from the command line
+ * @param argv command line arguments
+ * @return 0 ok, 1 on error
+ */
+int
+main (int argc,
+      char *const *argv)
+{
+  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+    {'C', "connection-close", NULL,
+     "force HTTP connections to be closed after each request", 0,
+     &GNUNET_GETOPT_set_one, &TMH_exchange_connection_close},
+    {'d', "exchange-dir", "DIR",
+     "exchange directory with configuration and keys for operating the exchange", 1,
+     &GNUNET_GETOPT_set_filename, &TMH_exchange_directory},
+    {'t', "timeout", "SECONDS",
+     "after how long do connections timeout by default (in seconds)", 1,
+     &GNUNET_GETOPT_set_uint, &connection_timeout},
+#if HAVE_DEVELOPER
+    {'f', "file-input", "FILENAME",
+     "run in test-mode using FILENAME as the HTTP request to process", 1,
+     &GNUNET_GETOPT_set_filename, &input_filename},
+#endif
+    TALER_GETOPT_OPTION_HELP ("HTTP server providing a RESTful API to access a Taler exchange"),
+    GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
+    GNUNET_GETOPT_OPTION_END
+  };
+  int ret;
+
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_log_setup ("taler-exchange-httpd",
+                                   "INFO",
+                                   NULL));
+  if (0 >=
+      GNUNET_GETOPT_run ("taler-exchange-httpd",
+                         options,
+                         argc, argv))
+    return 1;
+  if (NULL == TMH_exchange_directory)
+  {
+    fprintf (stderr,
+             "Exchange directory not specified\n");
+    return 1;
+  }
+
+  if (GNUNET_OK !=
+      exchange_serve_process_config (TMH_exchange_directory))
+    return 1;
+
+  mydaemon = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY | MHD_USE_DEBUG,
+                               serve_port,
+                               NULL, NULL,
+                               &handle_mhd_request, NULL,
+                               MHD_OPTION_EXTERNAL_LOGGER, &handle_mhd_logs, NULL,
+                               MHD_OPTION_NOTIFY_COMPLETED, &handle_mhd_completion_callback, NULL,
+                               MHD_OPTION_CONNECTION_TIMEOUT, connection_timeout,
+#if HAVE_DEVELOPER
+                               MHD_OPTION_NOTIFY_CONNECTION, &connection_done, NULL,
+#endif
+                               MHD_OPTION_END);
+
+  if (NULL == mydaemon)
+  {
+    fprintf (stderr,
+             "Failed to start HTTP server.\n");
+    return 1;
+  }
+#if HAVE_DEVELOPER
+  if (NULL != input_filename)
+  {
+    /* run only the testfile input, then terminate */
+    ret = run_fake_client ();
+  }
+  else
+  {
+    /* normal behavior */
+    ret = TMH_KS_loop ();
+  }
+#else
+  /* normal behavior */
+  ret = TMH_KS_loop ();
+#endif
+
+  switch (ret)
+  {
+  case GNUNET_OK:
+  case GNUNET_SYSERR:
+    MHD_stop_daemon (mydaemon);
+    break;
+  case GNUNET_NO:
+    {
+      MHD_socket sock = MHD_quiesce_daemon (mydaemon);
+
+      /* FIXME #3474: fork another MHD, passing on the listen socket! */
+      while (0 != MHD_get_daemon_info (mydaemon,
+                                       MHD_DAEMON_INFO_CURRENT_CONNECTIONS)->num_connections)
+        sleep (1);
+      MHD_stop_daemon (mydaemon);
+
+      close (sock); /* FIXME: done like this because #3474 is open */
+    }
+    break;
+  default:
+    GNUNET_break (0);
+    MHD_stop_daemon (mydaemon);
+    break;
+  }
+
+  if (GNUNET_YES == TMH_test_mode)
+  {
+    struct TALER_EXCHANGEDB_Session *session;
+
+    session = TMH_plugin->get_session (TMH_plugin->cls,
+                                       GNUNET_YES);
+    if (NULL == session)
+      GNUNET_break (0);
+    else
+      TMH_plugin->drop_temporary (TMH_plugin->cls,
+                                  session);
+  }
+  TALER_EXCHANGEDB_plugin_unload (TMH_plugin);
+  TMH_VALIDATION_done ();
+  return (GNUNET_SYSERR == ret) ? 1 : 0;
+}
+
+/* end of taler-exchange-httpd.c */
diff --git a/src/exchange/taler-exchange-httpd.h b/src/exchange/taler-exchange-httpd.h
new file mode 100644
index 000000000..5f17eac5b
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd.h
@@ -0,0 +1,128 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd.h
+ * @brief Global declarations for the exchange
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ *
+ * FIXME: Consider which of these need to really be globals...
+ */
+#ifndef TALER_EXCHANGE_HTTPD_H
+#define TALER_EXCHANGE_HTTPD_H
+
+#include <microhttpd.h>
+
+
+/**
+ * Which currency is used by this exchange?
+ */
+extern char *TMH_exchange_currency_string;
+
+/**
+ * Should we return "Connection: close" in each response?
+ */
+extern int TMH_exchange_connection_close;
+
+/**
+ * The exchange's configuration.
+ */
+extern struct GNUNET_CONFIGURATION_Handle *cfg;
+
+/**
+ * Are we running in test mode?
+ */
+extern int TMH_test_mode;
+
+/**
+ * Main directory with exchange data.
+ */
+extern char *TMH_exchange_directory;
+
+/**
+ * Master public key (according to the
+ * configuration in the exchange directory).
+ */
+extern struct GNUNET_CRYPTO_EddsaPublicKey TMH_master_public_key;
+
+/**
+ * Private key of the exchange we use to sign messages.
+ */
+extern struct GNUNET_CRYPTO_EddsaPrivateKey TMH_exchange_private_signing_key;
+
+/**
+ * Our DB plugin.
+ */
+extern struct TALER_EXCHANGEDB_Plugin *TMH_plugin;
+
+
+/**
+ * @brief Struct describing an URL and the handler for it.
+ */
+struct TMH_RequestHandler
+{
+
+  /**
+   * URL the handler is for.
+   */
+  const char *url;
+
+  /**
+   * Method the handler is for, NULL for "all".
+   */
+  const char *method;
+
+  /**
+   * Mime type to use in reply (hint, can be NULL).
+   */
+  const char *mime_type;
+
+  /**
+   * Raw data for the @e handler
+   */
+  const void *data;
+
+  /**
+   * Number of bytes in @e data, 0 for 0-terminated.
+   */
+  size_t data_size;
+
+  /**
+   * Function to call to handle the request.
+   *
+   * @param rh this struct
+   * @param mime_type the @e mime_type for the reply (hint, can be NULL)
+   * @param connection the MHD connection to handle
+   * @param[in,out] connection_cls the connection's closure (can be updated)
+   * @param upload_data upload data
+   * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+   * @return MHD result code
+   */
+  int (*handler)(struct TMH_RequestHandler *rh,
+                 struct MHD_Connection *connection,
+                 void **connection_cls,
+                 const char *upload_data,
+                 size_t *upload_data_size);
+
+  /**
+   * Default response code.
+   */
+  int response_code;
+};
+
+
+#endif
diff --git a/src/exchange/taler-exchange-httpd_admin.c b/src/exchange/taler-exchange-httpd_admin.c
new file mode 100644
index 000000000..575df7bb0
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_admin.c
@@ -0,0 +1,164 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_admin.c
+ * @brief Handle /admin/ requests
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <gnunet/gnunet_util_lib.h>
+#include <jansson.h>
+#include "taler-exchange-httpd_admin.h"
+#include "taler-exchange-httpd_parsing.h"
+#include "taler-exchange-httpd_responses.h"
+#include "taler-exchange-httpd_validation.h"
+
+
+/**
+ * Check permissions (we only allow access to /admin/ from loopback).
+ *
+ * @param connection connection to perform access check for
+ * @return #GNUNET_OK if permitted,
+ *         #GNUNET_NO if denied and error was queued,
+ *         #GNUNET_SYSERR if denied and we failed to report
+ */
+static int
+check_permissions (struct MHD_Connection *connection)
+{
+  const union MHD_ConnectionInfo *ci;
+  const struct sockaddr *addr;
+  int res;
+
+  ci = MHD_get_connection_info (connection,
+                                MHD_CONNECTION_INFO_CLIENT_ADDRESS);
+  if (NULL == ci)
+  {
+    GNUNET_break (0);
+    res = TMH_RESPONSE_reply_internal_error (connection,
+                                             "Failed to verify client address");
+    return (MHD_YES == res) ? GNUNET_NO : GNUNET_SYSERR;
+  }
+  addr = ci->client_addr;
+  switch (addr->sa_family)
+  {
+  case AF_INET:
+    {
+      const struct sockaddr_in *sin = (const struct sockaddr_in *) addr;
+
+      if (INADDR_LOOPBACK != ntohl (sin->sin_addr.s_addr))
+      {
+        res = TMH_RESPONSE_reply_permission_denied (connection,
+                                                    "/admin/ only allowed via loopback");
+        return (MHD_YES == res) ? GNUNET_NO : GNUNET_SYSERR;
+      }
+      break;
+    }
+  case AF_INET6:
+    {
+      const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *) addr;
+
+      if (! IN6_IS_ADDR_LOOPBACK (&sin6->sin6_addr))
+      {
+        res = TMH_RESPONSE_reply_permission_denied (connection,
+                                                    "/admin/ only allowed via loopback");
+        return (MHD_YES == res) ? GNUNET_NO : GNUNET_SYSERR;
+      }
+      break;
+    }
+  default:
+    GNUNET_break (0);
+    res = TMH_RESPONSE_reply_internal_error (connection,
+                                             "Unsupported AF");
+    return (MHD_YES == res) ? GNUNET_NO : GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
+}
+
+
+
+/**
+ * Handle a "/admin/add/incoming" request.  Parses the
+ * given "reserve_pub", "amount", "transaction" and "h_wire"
+ * details and adds the respective transaction to the database.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_ADMIN_handler_admin_add_incoming (struct TMH_RequestHandler *rh,
+                                      struct MHD_Connection *connection,
+                                      void **connection_cls,
+                                      const char *upload_data,
+                                      size_t *upload_data_size)
+{
+  struct TALER_ReservePublicKeyP reserve_pub;
+  struct TALER_Amount amount;
+  struct GNUNET_TIME_Absolute at;
+  json_t *wire;
+  json_t *root;
+  struct TMH_PARSE_FieldSpecification spec[] = {
+    TMH_PARSE_member_fixed ("reserve_pub", &reserve_pub),
+    TMH_PARSE_member_amount ("amount", &amount),
+    TMH_PARSE_member_time_abs ("execution_date", &at),
+    TMH_PARSE_member_object ("wire", &wire),
+    TMH_PARSE_MEMBER_END
+  };
+  int res;
+
+  res = check_permissions (connection);
+  if (GNUNET_OK != res)
+    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
+  res = TMH_PARSE_post_json (connection,
+                             connection_cls,
+                             upload_data,
+                             upload_data_size,
+                             &root);
+  if (GNUNET_SYSERR == res)
+    return MHD_NO;
+  if ( (GNUNET_NO == res) || (NULL == root) )
+    return MHD_YES;
+  res = TMH_PARSE_json_data (connection,
+                             root,
+                             spec);
+  json_decref (root);
+  if (GNUNET_OK != res)
+  {
+    GNUNET_break_op (0);
+    json_decref (root);
+    return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
+  }
+  if (GNUNET_YES !=
+      TMH_json_validate_wireformat (wire))
+  {
+    GNUNET_break_op (0);
+    TMH_PARSE_release_data (spec);
+    return TMH_RESPONSE_reply_arg_unknown (connection,
+                                           "wire");
+  }
+  res = TMH_DB_execute_admin_add_incoming (connection,
+                                           &reserve_pub,
+                                           &amount,
+                                           at,
+                                           wire);
+  TMH_PARSE_release_data (spec);
+  return res;
+}
+
+/* end of taler-exchange-httpd_admin.c */
diff --git a/src/exchange/taler-exchange-httpd_admin.h b/src/exchange/taler-exchange-httpd_admin.h
new file mode 100644
index 000000000..d720d61d3
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_admin.h
@@ -0,0 +1,46 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_admin.h
+ * @brief Handle /admin/ requests
+ * @author Christian Grothoff
+ */
+#ifndef TALER_EXCHANGE_HTTPD_ADMIN_H
+#define TALER_EXCHANGE_HTTPD_ADMIN_H
+
+#include <microhttpd.h>
+#include "taler-exchange-httpd.h"
+
+/**
+ * Handle a "/admin/add/incoming" request.  Parses the
+ * given "reserve_pub", "amount", "transaction" and "h_wire"
+ * details and adds the respective transaction to the database.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_ADMIN_handler_admin_add_incoming (struct TMH_RequestHandler *rh,
+                                      struct MHD_Connection *connection,
+                                      void **connection_cls,
+                                      const char *upload_data,
+                                      size_t *upload_data_size);
+
+#endif
diff --git a/src/exchange/taler-exchange-httpd_db.c b/src/exchange/taler-exchange-httpd_db.c
new file mode 100644
index 000000000..9d04efa9b
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_db.c
@@ -0,0 +1,1900 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_db.c
+ * @brief High-level (transactional-layer) database operations for the exchange.
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <pthread.h>
+#include <jansson.h>
+#include "taler-exchange-httpd_responses.h"
+#include "taler-exchange-httpd_keystate.h"
+
+/**
+ * How often should we retry a transaction before giving up
+ * (for transactions resulting in serialization/dead locks only).
+ */
+#define MAX_TRANSACTION_COMMIT_RETRIES 3
+
+/**
+ * Code to begin a transaction, must be inline as we define a block
+ * that ends with #COMMIT_TRANSACTION() within which we perform a number
+ * of retries.  Note that this code may call "return" internally, so
+ * it must be called within a function where any cleanup will be done
+ * by the caller. Furthermore, the function's return value must
+ * match that of a #TMH_RESPONSE_reply_internal_db_error() status code.
+ *
+ * @param session session handle
+ * @param connection connection handle
+ */
+#define START_TRANSACTION(session,connection)                 \
+{ /* start new scope, will be ended by COMMIT_TRANSACTION() */\
+  unsigned int transaction_retries = 0;                       \
+  int transaction_commit_result;                              \
+transaction_start_label: /* we will use goto for retries */   \
+  if (GNUNET_OK !=                                            \
+      TMH_plugin->start (TMH_plugin->cls,                     \
+                         session))                            \
+  {                                                           \
+    GNUNET_break (0);                                         \
+    return TMH_RESPONSE_reply_internal_db_error (connection); \
+  }
+
+/**
+ * Code to conclude a transaction, dual to #START_TRANSACTION().  Note
+ * that this code may call "return" internally, so it must be called
+ * within a function where any cleanup will be done by the caller.
+ * Furthermore, the function's return value must match that of a
+ * #TMH_RESPONSE_reply_internal_db_error() status code.
+ *
+ * @param session session handle
+ * @param connection connection handle
+ */
+#define COMMIT_TRANSACTION(session,connection)                             \
+  transaction_commit_result =                                              \
+    TMH_plugin->commit (TMH_plugin->cls,                                   \
+                        session);                                          \
+  if (GNUNET_SYSERR == transaction_commit_result)                          \
+  {                                                                        \
+    TALER_LOG_WARNING ("Transaction commit failed in %s\n", __FUNCTION__); \
+    return TMH_RESPONSE_reply_commit_error (connection);                   \
+  }                                                                        \
+  if (GNUNET_NO == transaction_commit_result)                              \
+  {                                                                        \
+    TALER_LOG_WARNING ("Transaction commit failed in %s\n", __FUNCTION__); \
+    if (transaction_retries++ <= MAX_TRANSACTION_COMMIT_RETRIES)           \
+      goto transaction_start_label;                                        \
+    TALER_LOG_WARNING ("Transaction commit failed %u times in %s\n",       \
+                       transaction_retries,                                \
+                       __FUNCTION__);                                      \
+    return TMH_RESPONSE_reply_commit_error (connection);                   \
+  }                                                                        \
+} /* end of scope opened by BEGIN_TRANSACTION */
+
+
+/**
+ * Calculate the total value of all transactions performed.
+ * Stores @a off plus the cost of all transactions in @a tl
+ * in @a ret.
+ *
+ * @param tl transaction list to process
+ * @param off offset to use as the starting value
+ * @param ret where the resulting total is to be stored
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on errors
+ */
+static int
+calculate_transaction_list_totals (struct TALER_EXCHANGEDB_TransactionList *tl,
+                                   const struct TALER_Amount *off,
+                                   struct TALER_Amount *ret)
+{
+  struct TALER_Amount spent = *off;
+  struct TALER_EXCHANGEDB_TransactionList *pos;
+
+  for (pos = tl; NULL != pos; pos = pos->next)
+  {
+    switch (pos->type)
+    {
+    case TALER_EXCHANGEDB_TT_DEPOSIT:
+      if (GNUNET_OK !=
+          TALER_amount_add (&spent,
+                            &spent,
+                            &pos->details.deposit->amount_with_fee))
+      {
+        GNUNET_break (0);
+        return GNUNET_SYSERR;
+      }
+      break;
+    case TALER_EXCHANGEDB_TT_REFRESH_MELT:
+      if (GNUNET_OK !=
+          TALER_amount_add (&spent,
+                            &spent,
+                            &pos->details.melt->amount_with_fee))
+      {
+        GNUNET_break (0);
+        return GNUNET_SYSERR;
+      }
+      break;
+    }
+  }
+  *ret = spent;
+  return GNUNET_OK;
+}
+
+
+/**
+ * Execute a deposit.  The validity of the coin and signature
+ * have already been checked.  The database must now check that
+ * the coin is not (double or over) spent, and execute the
+ * transaction (record details, generate success or failure response).
+ *
+ * @param connection the MHD connection to handle
+ * @param deposit information about the deposit
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_deposit (struct MHD_Connection *connection,
+                        const struct TALER_EXCHANGEDB_Deposit *deposit)
+{
+  struct TALER_EXCHANGEDB_Session *session;
+  struct TALER_EXCHANGEDB_TransactionList *tl;
+  struct TALER_Amount spent;
+  struct TALER_Amount value;
+  struct TALER_Amount amount_without_fee;
+  struct TMH_KS_StateHandle *mks;
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki;
+  int ret;
+
+  if (NULL == (session = TMH_plugin->get_session (TMH_plugin->cls,
+                                                  TMH_test_mode)))
+  {
+    GNUNET_break (0);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+  if (GNUNET_YES ==
+      TMH_plugin->have_deposit (TMH_plugin->cls,
+                                session,
+                                deposit))
+  {
+    GNUNET_assert (GNUNET_OK ==
+                   TALER_amount_subtract (&amount_without_fee,
+                                          &deposit->amount_with_fee,
+                                          &deposit->deposit_fee));
+    return TMH_RESPONSE_reply_deposit_success (connection,
+                                               &deposit->coin.coin_pub,
+                                               &deposit->h_wire,
+                                               &deposit->h_contract,
+                                               deposit->transaction_id,
+                                               deposit->timestamp,
+                                               deposit->refund_deadline,
+                                               &deposit->merchant_pub,
+                                               &amount_without_fee);
+  }
+  mks = TMH_KS_acquire ();
+  dki = TMH_KS_denomination_key_lookup (mks,
+                                        &deposit->coin.denom_pub,
+					TMH_KS_DKU_DEPOSIT);
+  if (NULL == dki)
+  {
+    TMH_KS_release (mks);
+    return TMH_RESPONSE_reply_arg_invalid (connection,
+                                           "denom_pub");
+  }
+  TALER_amount_ntoh (&value,
+                     &dki->issue.properties.value);
+  TMH_KS_release (mks);
+
+  START_TRANSACTION (session, connection);
+
+  /* fee for THIS transaction */
+  spent = deposit->amount_with_fee;
+  /* add cost of all previous transactions */
+  tl = TMH_plugin->get_coin_transactions (TMH_plugin->cls,
+                                          session,
+                                          &deposit->coin.coin_pub);
+  if (GNUNET_OK !=
+      calculate_transaction_list_totals (tl,
+                                         &spent,
+                                         &spent))
+  {
+    TMH_plugin->free_coin_transaction_list (TMH_plugin->cls,
+                                            tl);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+  /* Check that cost of all transactions is smaller than
+     the value of the coin. */
+  if (0 < TALER_amount_cmp (&spent,
+                            &value))
+  {
+    TMH_plugin->rollback (TMH_plugin->cls,
+                          session);
+    ret = TMH_RESPONSE_reply_deposit_insufficient_funds (connection,
+                                                         tl);
+    TMH_plugin->free_coin_transaction_list (TMH_plugin->cls,
+                                            tl);
+    return ret;
+  }
+  TMH_plugin->free_coin_transaction_list (TMH_plugin->cls,
+                                          tl);
+
+  if (GNUNET_OK !=
+      TMH_plugin->insert_deposit (TMH_plugin->cls,
+                                  session,
+                                  deposit))
+  {
+    TALER_LOG_WARNING ("Failed to store /deposit information in database\n");
+    TMH_plugin->rollback (TMH_plugin->cls,
+                          session);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+
+  COMMIT_TRANSACTION(session, connection);
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_amount_subtract (&amount_without_fee,
+                                        &deposit->amount_with_fee,
+                                        &deposit->deposit_fee));
+  return TMH_RESPONSE_reply_deposit_success (connection,
+                                             &deposit->coin.coin_pub,
+                                             &deposit->h_wire,
+                                             &deposit->h_contract,
+                                             deposit->transaction_id,
+                                             deposit->timestamp,
+                                             deposit->refund_deadline,
+                                             &deposit->merchant_pub,
+                                             &amount_without_fee);
+}
+
+
+/**
+ * Execute a /reserve/status.  Given the public key of a reserve,
+ * return the associated transaction history.
+ *
+ * @param connection the MHD connection to handle
+ * @param reserve_pub public key of the reserve to check
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_reserve_status (struct MHD_Connection *connection,
+                               const struct TALER_ReservePublicKeyP *reserve_pub)
+{
+  struct TALER_EXCHANGEDB_Session *session;
+  struct TALER_EXCHANGEDB_ReserveHistory *rh;
+  int res;
+
+  if (NULL == (session = TMH_plugin->get_session (TMH_plugin->cls,
+                                                  TMH_test_mode)))
+  {
+    GNUNET_break (0);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+  rh = TMH_plugin->get_reserve_history (TMH_plugin->cls,
+                                        session,
+                                        reserve_pub);
+  if (NULL == rh)
+    return TMH_RESPONSE_reply_json_pack (connection,
+                                         MHD_HTTP_NOT_FOUND,
+                                         "{s:s, s:s}",
+                                         "error", "Reserve not found",
+                                         "parameter", "withdraw_pub");
+  res = TMH_RESPONSE_reply_reserve_status_success (connection,
+                                                    rh);
+  TMH_plugin->free_reserve_history (TMH_plugin->cls,
+                                    rh);
+  return res;
+}
+
+
+/**
+ * Try to execute /reserve/withdraw transaction.
+ *
+ * @param connection request we are handling
+ * @param session database session we are using
+ * @param key_state key state to lookup denomination pubs
+ * @param reserve reserve to withdraw from
+ * @param denomination_pub public key of the denomination requested
+ * @param dki denomination to withdraw
+ * @param blinded_msg blinded message to be signed
+ * @param blinded_msg_len number of bytes in @a blinded_msg
+ * @param h_blind hash of @a blinded_msg
+ * @param signature signature over the withdraw request, to be stored in DB
+ * @param denom_sig[out] where to write the resulting signature
+ *        (used to release memory in case of transaction failure
+ * @return MHD result code
+ */
+static int
+execute_reserve_withdraw_transaction (struct MHD_Connection *connection,
+                                      struct TALER_EXCHANGEDB_Session *session,
+                                      struct TMH_KS_StateHandle *key_state,
+                                      const struct TALER_ReservePublicKeyP *reserve,
+                                      const struct TALER_DenominationPublicKey *denomination_pub,
+                                      const struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki,
+                                      const char *blinded_msg,
+                                      size_t blinded_msg_len,
+                                      const struct GNUNET_HashCode *h_blind,
+                                      const struct TALER_ReserveSignatureP *signature,
+                                      struct TALER_DenominationSignature *denom_sig)
+{
+  struct TALER_EXCHANGEDB_ReserveHistory *rh;
+  const struct TALER_EXCHANGEDB_ReserveHistory *pos;
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *tdki;
+  struct TALER_EXCHANGEDB_CollectableBlindcoin collectable;
+  struct TALER_Amount amount_required;
+  struct TALER_Amount deposit_total;
+  struct TALER_Amount withdraw_total;
+  struct TALER_Amount balance;
+  struct TALER_Amount value;
+  struct TALER_Amount fee_withdraw;
+  int res;
+
+  /* Check if balance is sufficient */
+  START_TRANSACTION (session, connection);
+  rh = TMH_plugin->get_reserve_history (TMH_plugin->cls,
+                                        session,
+                                        reserve);
+  if (NULL == rh)
+  {
+    TMH_plugin->rollback (TMH_plugin->cls,
+                          session);
+    return TMH_RESPONSE_reply_arg_unknown (connection,
+                                           "reserve_pub");
+  }
+
+  /* calculate amount required including fees */
+  TALER_amount_ntoh (&value,
+                     &dki->issue.properties.value);
+  TALER_amount_ntoh (&fee_withdraw,
+                     &dki->issue.properties.fee_withdraw);
+
+  if (GNUNET_OK !=
+      TALER_amount_add (&amount_required,
+                        &value,
+                        &fee_withdraw))
+  {
+    TMH_plugin->rollback (TMH_plugin->cls,
+                          session);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+
+  /* calculate balance of the reserve */
+  res = 0;
+  for (pos = rh; NULL != pos; pos = pos->next)
+  {
+    switch (pos->type)
+    {
+    case TALER_EXCHANGEDB_RO_BANK_TO_EXCHANGE:
+      if (0 == (res & 1))
+        deposit_total = pos->details.bank->amount;
+      else
+        if (GNUNET_OK !=
+            TALER_amount_add (&deposit_total,
+                              &deposit_total,
+                              &pos->details.bank->amount))
+        {
+          TMH_plugin->rollback (TMH_plugin->cls,
+                                session);
+          return TMH_RESPONSE_reply_internal_db_error (connection);
+        }
+      res |= 1;
+      break;
+    case TALER_EXCHANGEDB_RO_WITHDRAW_COIN:
+      tdki = TMH_KS_denomination_key_lookup (key_state,
+                                             &pos->details.withdraw->denom_pub,
+					     TMH_KS_DKU_WITHDRAW);
+      if (NULL == tdki)
+      {
+        GNUNET_break (0);
+        TMH_plugin->rollback (TMH_plugin->cls,
+                              session);
+        return TMH_RESPONSE_reply_internal_db_error (connection);
+      }
+      TALER_amount_ntoh (&value,
+                         &tdki->issue.properties.value);
+      if (0 == (res & 2))
+        withdraw_total = value;
+      else
+        if (GNUNET_OK !=
+            TALER_amount_add (&withdraw_total,
+                              &withdraw_total,
+                              &value))
+        {
+          TMH_plugin->rollback (TMH_plugin->cls,
+                                session);
+          return TMH_RESPONSE_reply_internal_db_error (connection);
+        }
+      res |= 2;
+      break;
+    }
+  }
+  if (0 == (res & 1))
+  {
+    /* did not encounter any deposit operations, how can we have a reserve? */
+    GNUNET_break (0);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+  if (0 == (res & 2))
+  {
+    /* did not encounter any withdraw operations, set to zero */
+    TALER_amount_get_zero (deposit_total.currency,
+                           &withdraw_total);
+  }
+  /* All reserve balances should be non-negative */
+  GNUNET_assert (GNUNET_SYSERR !=
+                 TALER_amount_subtract (&balance,
+                                        &deposit_total,
+                                        &withdraw_total));
+  if (0 < TALER_amount_cmp (&amount_required,
+                            &balance))
+  {
+    TMH_plugin->rollback (TMH_plugin->cls,
+                          session);
+    res = TMH_RESPONSE_reply_reserve_withdraw_insufficient_funds (connection,
+                                                                  rh);
+    TMH_plugin->free_reserve_history (TMH_plugin->cls,
+                                      rh);
+    return res;
+  }
+  TMH_plugin->free_reserve_history (TMH_plugin->cls,
+                                    rh);
+
+  /* Balance is good, sign the coin! */
+  denom_sig->rsa_signature
+    = GNUNET_CRYPTO_rsa_sign (dki->denom_priv.rsa_private_key,
+                              blinded_msg,
+                              blinded_msg_len);
+  if (NULL == denom_sig->rsa_signature)
+  {
+    GNUNET_break (0);
+    TMH_plugin->rollback (TMH_plugin->cls,
+                          session);
+    return TMH_RESPONSE_reply_internal_error (connection,
+                                              "Internal error");
+  }
+  collectable.sig = *denom_sig;
+  collectable.denom_pub = *denomination_pub;
+  collectable.amount_with_fee = amount_required;
+  collectable.withdraw_fee = fee_withdraw;
+  collectable.reserve_pub = *reserve;
+  collectable.h_coin_envelope = *h_blind;
+  collectable.reserve_sig = *signature;
+  if (GNUNET_OK !=
+      TMH_plugin->insert_withdraw_info (TMH_plugin->cls,
+                                        session,
+                                        &collectable))
+  {
+    GNUNET_break (0);
+    TMH_plugin->rollback (TMH_plugin->cls,
+                          session);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+  COMMIT_TRANSACTION (session, connection);
+
+  return TMH_RESPONSE_reply_reserve_withdraw_success (connection,
+                                                      &collectable);
+}
+
+
+
+/**
+ * Execute a "/reserve/withdraw". Given a reserve and a properly signed
+ * request to withdraw a coin, check the balance of the reserve and
+ * if it is sufficient, store the request and return the signed
+ * blinded envelope.
+ *
+ * @param connection the MHD connection to handle
+ * @param reserve public key of the reserve
+ * @param denomination_pub public key of the denomination requested
+ * @param blinded_msg blinded message to be signed
+ * @param blinded_msg_len number of bytes in @a blinded_msg
+ * @param signature signature over the withdraw request, to be stored in DB
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_reserve_withdraw (struct MHD_Connection *connection,
+                                 const struct TALER_ReservePublicKeyP *reserve,
+                                 const struct TALER_DenominationPublicKey *denomination_pub,
+                                 const char *blinded_msg,
+                                 size_t blinded_msg_len,
+                                 const struct TALER_ReserveSignatureP *signature)
+{
+  struct TALER_EXCHANGEDB_Session *session;
+  struct TMH_KS_StateHandle *key_state;
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki;
+  struct TALER_EXCHANGEDB_CollectableBlindcoin collectable;
+  struct TALER_DenominationSignature denom_sig;
+  struct GNUNET_HashCode h_blind;
+  int res;
+
+  GNUNET_CRYPTO_hash (blinded_msg,
+                      blinded_msg_len,
+                      &h_blind);
+  if (NULL == (session = TMH_plugin->get_session (TMH_plugin->cls,
+                                                  TMH_test_mode)))
+  {
+    GNUNET_break (0);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+  res = TMH_plugin->get_withdraw_info (TMH_plugin->cls,
+                                       session,
+                                       &h_blind,
+                                       &collectable);
+  if (GNUNET_SYSERR == res)
+  {
+    GNUNET_break (0);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+
+  /* Don't sign again if we have already signed the coin */
+  if (GNUNET_YES == res)
+  {
+    res = TMH_RESPONSE_reply_reserve_withdraw_success (connection,
+                                                       &collectable);
+    GNUNET_CRYPTO_rsa_signature_free (collectable.sig.rsa_signature);
+    GNUNET_CRYPTO_rsa_public_key_free (collectable.denom_pub.rsa_public_key);
+    return res;
+  }
+  GNUNET_assert (GNUNET_NO == res);
+
+  key_state = TMH_KS_acquire ();
+  dki = TMH_KS_denomination_key_lookup (key_state,
+                                        denomination_pub,
+					TMH_KS_DKU_WITHDRAW);
+  if (NULL == dki)
+  {
+    TMH_KS_release (key_state);
+    return TMH_RESPONSE_reply_json_pack (connection,
+                                         MHD_HTTP_NOT_FOUND,
+                                         "{s:s}",
+                                         "error",
+                                         "Denomination not found");
+  }
+  denom_sig.rsa_signature = NULL;
+  res = execute_reserve_withdraw_transaction (connection,
+                                              session,
+                                              key_state,
+                                              reserve,
+                                              denomination_pub,
+                                              dki,
+                                              blinded_msg,
+                                              blinded_msg_len,
+                                              &h_blind,
+                                              signature,
+                                              &denom_sig);
+  if (NULL != denom_sig.rsa_signature)
+    GNUNET_CRYPTO_rsa_signature_free (denom_sig.rsa_signature);
+  TMH_KS_release (key_state);
+  return res;
+}
+
+
+/**
+ * Parse coin melt requests from a JSON object and write them to
+ * the database.
+ *
+ * @param connection the connection to send errors to
+ * @param session the database connection
+ * @param key_state the exchange's key state
+ * @param session_hash hash identifying the refresh session
+ * @param coin_details details about the coin being melted
+ * @param oldcoin_index what is the number assigned to this coin
+ * @return #GNUNET_OK on success,
+ *         #GNUNET_NO if an error message was generated,
+ *         #GNUNET_SYSERR on internal errors (no response generated)
+ */
+static int
+refresh_accept_melts (struct MHD_Connection *connection,
+                      struct TALER_EXCHANGEDB_Session *session,
+                      const struct TMH_KS_StateHandle *key_state,
+                      const struct GNUNET_HashCode *session_hash,
+                      const struct TMH_DB_MeltDetails *coin_details,
+                      uint16_t oldcoin_index)
+{
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dk;
+  struct TALER_EXCHANGEDB_DenominationKeyInformationP *dki;
+  struct TALER_EXCHANGEDB_TransactionList *tl;
+  struct TALER_Amount coin_value;
+  struct TALER_Amount coin_residual;
+  struct TALER_Amount spent;
+  struct TALER_EXCHANGEDB_RefreshMelt melt;
+  int res;
+
+  dk = TMH_KS_denomination_key_lookup (key_state,
+                                       &coin_details->coin_info.denom_pub,
+                                       TMH_KS_DKU_DEPOSIT);
+  if (NULL == dk)
+    return (MHD_YES ==
+            TMH_RESPONSE_reply_arg_unknown (connection,
+                                            "denom_pub"))
+        ? GNUNET_NO : GNUNET_SYSERR;
+  dki = &dk->issue;
+  TALER_amount_ntoh (&coin_value,
+                     &dki->properties.value);
+  /* fee for THIS transaction; the melt amount includes the fee! */
+  spent = coin_details->melt_amount_with_fee;
+  /* add historic transaction costs of this coin */
+  tl = TMH_plugin->get_coin_transactions (TMH_plugin->cls,
+                                          session,
+                                          &coin_details->coin_info.coin_pub);
+  if (GNUNET_OK !=
+      calculate_transaction_list_totals (tl,
+                                         &spent,
+                                         &spent))
+  {
+    GNUNET_break (0);
+    TMH_plugin->free_coin_transaction_list (TMH_plugin->cls,
+                                            tl);
+    return (MHD_YES ==
+            TMH_RESPONSE_reply_internal_db_error (connection))
+      ? GNUNET_NO : GNUNET_SYSERR;
+  }
+  /* Refuse to refresh when the coin's value is insufficient
+     for the cost of all transactions. */
+  if (TALER_amount_cmp (&coin_value,
+                        &spent) < 0)
+  {
+    GNUNET_assert (GNUNET_OK ==
+                   TALER_amount_subtract (&coin_residual,
+                                          &spent,
+                                          &coin_details->melt_amount_with_fee));
+    res = (MHD_YES ==
+           TMH_RESPONSE_reply_refresh_melt_insufficient_funds (connection,
+                                                               &coin_details->coin_info.coin_pub,
+                                                               coin_value,
+                                                               tl,
+                                                               coin_details->melt_amount_with_fee,
+                                                               coin_residual))
+        ? GNUNET_NO : GNUNET_SYSERR;
+    TMH_plugin->free_coin_transaction_list (TMH_plugin->cls,
+                                            tl);
+    return res;
+  }
+  TMH_plugin->free_coin_transaction_list (TMH_plugin->cls,
+                                          tl);
+
+  melt.coin = coin_details->coin_info;
+  melt.coin_sig = coin_details->melt_sig;
+  melt.session_hash = *session_hash;
+  melt.amount_with_fee = coin_details->melt_amount_with_fee;
+  melt.melt_fee = coin_details->melt_fee;
+  if (GNUNET_OK !=
+      TMH_plugin->insert_refresh_melt (TMH_plugin->cls,
+                                       session,
+                                       oldcoin_index,
+                                       &melt))
+  {
+    GNUNET_break (0);
+    return (MHD_YES ==
+            TMH_RESPONSE_reply_internal_db_error (connection))
+      ? GNUNET_NO : GNUNET_SYSERR;
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Execute a "/refresh/melt".  We have been given a list of valid
+ * coins and a request to melt them into the given
+ * @a refresh_session_pub.  Check that the coins all have the
+ * required value left and if so, store that they have been
+ * melted and confirm the melting operation to the client.
+ *
+ * @param connection the MHD connection to handle
+ * @param session_hash hash code of the session the coins are melted into
+ * @param num_new_denoms number of entries in @a denom_pubs, size of y-dimension of @a commit_coin array
+ * @param denom_pubs public keys of the coins we want to withdraw in the end
+ * @param coin_count number of entries in @a coin_melt_details, size of y-dimension of @a commit_link array
+ * @param coin_melt_details signatures and (residual) value of the respective coin should be melted
+ * @param commit_coin 2d array of coin commitments (what the exchange is to sign
+ *                    once the "/refres/reveal" of cut and choose is done),
+ *                    x-dimension must be #TALER_CNC_KAPPA
+ * @param commit_link 2d array of coin link commitments (what the exchange is
+ *                    to return via "/refresh/link" to enable linkage in the
+ *                    future)
+ *                    x-dimension must be #TALER_CNC_KAPPA
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_refresh_melt (struct MHD_Connection *connection,
+                             const struct GNUNET_HashCode *session_hash,
+                             unsigned int num_new_denoms,
+                             const struct TALER_DenominationPublicKey *denom_pubs,
+                             unsigned int coin_count,
+                             const struct TMH_DB_MeltDetails *coin_melt_details,
+                             struct TALER_EXCHANGEDB_RefreshCommitCoin *const* commit_coin,
+                             struct TALER_RefreshCommitLinkP *const* commit_link)
+{
+  struct TMH_KS_StateHandle *key_state;
+  struct TALER_EXCHANGEDB_RefreshSession refresh_session;
+  struct TALER_EXCHANGEDB_Session *session;
+  int res;
+  unsigned int i;
+
+  if (NULL == (session = TMH_plugin->get_session (TMH_plugin->cls,
+                                                  TMH_test_mode)))
+  {
+    GNUNET_break (0);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+  START_TRANSACTION (session, connection);
+  res = TMH_plugin->get_refresh_session (TMH_plugin->cls,
+                                         session,
+                                         session_hash,
+                                         &refresh_session);
+  if (GNUNET_YES == res)
+  {
+    TMH_plugin->rollback (TMH_plugin->cls,
+                          session);
+    res = TMH_RESPONSE_reply_refresh_melt_success (connection,
+                                                   session_hash,
+                                                   refresh_session.noreveal_index);
+    return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
+  }
+  if (GNUNET_SYSERR == res)
+  {
+    TMH_plugin->rollback (TMH_plugin->cls,
+                          session);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+
+  /* store 'global' session data */
+  refresh_session.num_oldcoins = coin_count;
+  refresh_session.num_newcoins = num_new_denoms;
+  refresh_session.noreveal_index
+      = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG,
+                                  TALER_CNC_KAPPA);
+  if (GNUNET_OK !=
+      (res = TMH_plugin->create_refresh_session (TMH_plugin->cls,
+                                                 session,
+                                                 session_hash,
+                                                 &refresh_session)))
+  {
+    TMH_plugin->rollback (TMH_plugin->cls,
+                          session);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+
+  /* Melt old coins and check that they had enough residual value */
+  key_state = TMH_KS_acquire ();
+  for (i=0;i<coin_count;i++)
+  {
+    if (GNUNET_OK !=
+        (res = refresh_accept_melts (connection,
+                                     session,
+                                     key_state,
+                                     session_hash,
+                                     &coin_melt_details[i],
+                                     i)))
+    {
+      TMH_KS_release (key_state);
+      TMH_plugin->rollback (TMH_plugin->cls,
+                            session);
+      return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
+    }
+  }
+  TMH_KS_release (key_state);
+
+  /* store requested new denominations */
+  if (GNUNET_OK !=
+      TMH_plugin->insert_refresh_order (TMH_plugin->cls,
+                                        session,
+                                        session_hash,
+                                        num_new_denoms,
+                                        denom_pubs))
+  {
+    TMH_plugin->rollback (TMH_plugin->cls,
+                          session);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+
+  for (i = 0; i < TALER_CNC_KAPPA; i++)
+  {
+    if (GNUNET_OK !=
+        TMH_plugin->insert_refresh_commit_coins (TMH_plugin->cls,
+                                                 session,
+                                                 session_hash,
+                                                 i,
+                                                 num_new_denoms,
+                                                 commit_coin[i]))
+    {
+      TMH_plugin->rollback (TMH_plugin->cls,
+                            session);
+      return TMH_RESPONSE_reply_internal_db_error (connection);
+    }
+  }
+  for (i = 0; i < TALER_CNC_KAPPA; i++)
+  {
+    if (GNUNET_OK !=
+        TMH_plugin->insert_refresh_commit_links (TMH_plugin->cls,
+                                                 session,
+                                                 session_hash,
+                                                 i,
+                                                 coin_count,
+                                                 commit_link[i]))
+    {
+      TMH_plugin->rollback (TMH_plugin->cls,
+                            session);
+      return TMH_RESPONSE_reply_internal_db_error (connection);
+    }
+  }
+
+  COMMIT_TRANSACTION (session, connection);
+  return TMH_RESPONSE_reply_refresh_melt_success (connection,
+                                                  session_hash,
+                                                  refresh_session.noreveal_index);
+}
+
+
+/**
+ * Send an error response with the details of the original melt
+ * commitment and the location of the mismatch.
+ *
+ * @param connection the MHD connection to handle
+ * @param session database connection to use
+ * @param session_hash hash of session to query
+ * @param off commitment offset to check
+ * @param index index of the mismatch
+ * @param object_name name of the object with the problem
+ * @return #GNUNET_NO if we generated the error message
+ *         #GNUNET_SYSERR if we could not even generate an error message
+ */
+static int
+send_melt_commitment_error (struct MHD_Connection *connection,
+                            struct TALER_EXCHANGEDB_Session *session,
+                            const struct GNUNET_HashCode *session_hash,
+                            unsigned int off,
+                            unsigned int index,
+                            const char *object_name)
+{
+  struct TALER_EXCHANGEDB_MeltCommitment *mc;
+  int ret;
+
+  mc = TMH_plugin->get_melt_commitment (TMH_plugin->cls,
+                                        session,
+                                        session_hash);
+  if (NULL == mc)
+  {
+    GNUNET_break (0);
+    return (MHD_YES ==
+            TMH_RESPONSE_reply_internal_error (connection,
+                                               "Melt commitment assembly"))
+      ? GNUNET_NO : GNUNET_SYSERR;
+  }
+  ret = (MHD_YES ==
+         TMH_RESPONSE_reply_refresh_reveal_missmatch (connection,
+                                                      mc,
+                                                      off,
+                                                      index,
+                                                      object_name))
+    ? GNUNET_NO : GNUNET_SYSERR;
+  TMH_plugin->free_melt_commitment (TMH_plugin->cls,
+                                    mc);
+  return ret;
+}
+
+
+/**
+ * Check if the given @a transfer_privs correspond to an honest
+ * commitment for the given session.
+ * Checks that the transfer private keys match their commitments.
+ * Then derives the shared secret for each #TALER_CNC_KAPPA, and check that they match.
+ *
+ * @param connection the MHD connection to handle
+ * @param session database connection to use
+ * @param session_hash hash of session to query
+ * @param off commitment offset to check
+ * @param num_oldcoins size of the @a transfer_privs and @a melts arrays
+ * @param transfer_privs private transfer keys
+ * @param melts array of melted coins
+ * @param num_newcoins number of newcoins being generated
+ * @param denom_pubs array of @a num_newcoins keys for the new coins
+ * @return #GNUNET_OK if the committment was honest,
+ *         #GNUNET_NO if there was a problem and we generated an error message
+ *         #GNUNET_SYSERR if we could not even generate an error message
+ */
+static int
+check_commitment (struct MHD_Connection *connection,
+                  struct TALER_EXCHANGEDB_Session *session,
+                  const struct GNUNET_HashCode *session_hash,
+                  unsigned int off,
+                  unsigned int num_oldcoins,
+                  const struct TALER_TransferPrivateKeyP *transfer_privs,
+                  const struct TALER_EXCHANGEDB_RefreshMelt *melts,
+                  unsigned int num_newcoins,
+                  const struct TALER_DenominationPublicKey *denom_pubs)
+{
+  unsigned int j;
+  struct TALER_LinkSecretP last_shared_secret;
+  int secret_initialized = GNUNET_NO;
+  struct TALER_RefreshCommitLinkP *commit_links;
+  struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coins;
+
+  commit_links = GNUNET_malloc (num_oldcoins *
+                                sizeof (struct TALER_RefreshCommitLinkP));
+  if (GNUNET_OK !=
+      TMH_plugin->get_refresh_commit_links (TMH_plugin->cls,
+                                            session,
+                                            session_hash,
+                                            off,
+                                            num_oldcoins,
+                                            commit_links))
+  {
+    GNUNET_break (0);
+    GNUNET_free (commit_links);
+    return (MHD_YES == TMH_RESPONSE_reply_internal_db_error (connection))
+        ? GNUNET_NO : GNUNET_SYSERR;
+  }
+
+  for (j = 0; j < num_oldcoins; j++)
+  {
+    struct TALER_LinkSecretP shared_secret;
+    struct TALER_TransferPublicKeyP transfer_pub_check;
+
+    GNUNET_CRYPTO_ecdhe_key_get_public (&transfer_privs[j].ecdhe_priv,
+                                        &transfer_pub_check.ecdhe_pub);
+    if (0 !=
+        memcmp (&transfer_pub_check,
+                &commit_links[j].transfer_pub,
+                sizeof (struct TALER_TransferPublicKeyP)))
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                  "transfer keys do not match\n");
+      GNUNET_free (commit_links);
+      return send_melt_commitment_error (connection,
+                                         session,
+                                         session_hash,
+                                         off,
+                                         j,
+                                         "transfer key");
+    }
+
+    if (GNUNET_OK !=
+	TALER_link_decrypt_secret (&commit_links[j].shared_secret_enc,
+				   &transfer_privs[j],
+				   &melts[j].coin.coin_pub,
+				   &shared_secret))
+    {
+      GNUNET_free (commit_links);
+      return (MHD_YES ==
+	      TMH_RESPONSE_reply_internal_error (connection,
+						 "Transfer secret decryption error"))
+	? GNUNET_NO : GNUNET_SYSERR;
+    }
+    if (GNUNET_NO == secret_initialized)
+    {
+      secret_initialized = GNUNET_YES;
+      last_shared_secret = shared_secret;
+    }
+    else if (0 != memcmp (&shared_secret,
+                          &last_shared_secret,
+                          sizeof (struct GNUNET_HashCode)))
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                  "shared secrets do not match\n");
+      GNUNET_free (commit_links);
+      return send_melt_commitment_error (connection,
+                                         session,
+                                         session_hash,
+                                         off,
+                                         j,
+                                         "transfer secret");
+    }
+  }
+  GNUNET_break (GNUNET_YES == secret_initialized);
+  GNUNET_free (commit_links);
+
+  /* Check that the commitments for all new coins were correct */
+  commit_coins = GNUNET_malloc (num_newcoins *
+                                sizeof (struct TALER_EXCHANGEDB_RefreshCommitCoin));
+
+  if (GNUNET_OK !=
+      TMH_plugin->get_refresh_commit_coins (TMH_plugin->cls,
+                                            session,
+                                            session_hash,
+                                            off,
+                                            num_newcoins,
+                                            commit_coins))
+  {
+    GNUNET_break (0);
+    GNUNET_free (commit_coins);
+    return (MHD_YES == TMH_RESPONSE_reply_internal_db_error (connection))
+        ? GNUNET_NO : GNUNET_SYSERR;
+  }
+
+  for (j = 0; j < num_newcoins; j++)
+  {
+    struct TALER_RefreshLinkDecrypted *link_data;
+    struct TALER_CoinSpendPublicKeyP coin_pub;
+    struct GNUNET_HashCode h_msg;
+    char *buf;
+    size_t buf_len;
+
+    link_data = TALER_refresh_decrypt (commit_coins[j].refresh_link,
+                                       &last_shared_secret);
+    if (NULL == link_data)
+    {
+      GNUNET_break (0);
+      GNUNET_free (commit_coins);
+      return (MHD_YES == TMH_RESPONSE_reply_internal_error (connection,
+                                                            "Decryption error"))
+          ? GNUNET_NO : GNUNET_SYSERR;
+    }
+
+    GNUNET_CRYPTO_eddsa_key_get_public (&link_data->coin_priv.eddsa_priv,
+                                        &coin_pub.eddsa_pub);
+    GNUNET_CRYPTO_hash (&coin_pub,
+                        sizeof (struct TALER_CoinSpendPublicKeyP),
+                        &h_msg);
+    if (0 == (buf_len =
+              GNUNET_CRYPTO_rsa_blind (&h_msg,
+                                       link_data->blinding_key.rsa_blinding_key,
+                                       denom_pubs[j].rsa_public_key,
+                                       &buf)))
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "blind failed\n");
+      GNUNET_free (commit_coins);
+      return (MHD_YES == TMH_RESPONSE_reply_internal_error (connection,
+                                                            "Blinding error"))
+          ? GNUNET_NO : GNUNET_SYSERR;
+    }
+
+    if ( (buf_len != commit_coins[j].coin_ev_size) ||
+         (0 != memcmp (buf,
+                       commit_coins[j].coin_ev,
+                       buf_len)) )
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                  "blind envelope does not match for k=%u, old=%d\n",
+                  off,
+                  (int) j);
+      GNUNET_free (commit_coins);
+      return send_melt_commitment_error (connection,
+                                         session,
+                                         session_hash,
+                                         off,
+                                         j,
+                                         "envelope");
+    }
+    GNUNET_free (buf);
+  }
+  GNUNET_free (commit_coins);
+
+  return GNUNET_OK;
+}
+
+
+/**
+ * Exchange a coin as part of a refresh operation.  Obtains the
+ * envelope from the database and performs the signing operation.
+ *
+ * @param connection the MHD connection to handle
+ * @param session database connection to use
+ * @param session_hash hash of session to query
+ * @param key_state key state to lookup denomination pubs
+ * @param denom_pub denomination key for the coin to create
+ * @param commit_coin the coin that was committed
+ * @param coin_off number of the coin
+ * @return NULL on error, otherwise signature over the coin
+ */
+static struct TALER_DenominationSignature
+refresh_exchange_coin (struct MHD_Connection *connection,
+                   struct TALER_EXCHANGEDB_Session *session,
+                   const struct GNUNET_HashCode *session_hash,
+                   struct TMH_KS_StateHandle *key_state,
+                   const struct TALER_DenominationPublicKey *denom_pub,
+                   const struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coin,
+                   unsigned int coin_off)
+{
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki;
+  struct TALER_DenominationSignature ev_sig;
+
+  dki = TMH_KS_denomination_key_lookup (key_state,
+                                        denom_pub,
+					TMH_KS_DKU_WITHDRAW);
+  if (NULL == dki)
+  {
+    GNUNET_break (0);
+    ev_sig.rsa_signature = NULL;
+    return ev_sig;
+  }
+  ev_sig.rsa_signature
+      = GNUNET_CRYPTO_rsa_sign (dki->denom_priv.rsa_private_key,
+                                commit_coin->coin_ev,
+                                commit_coin->coin_ev_size);
+  if (NULL == ev_sig.rsa_signature)
+  {
+    GNUNET_break (0);
+    return ev_sig;
+  }
+  if (GNUNET_OK !=
+      TMH_plugin->insert_refresh_out (TMH_plugin->cls,
+                                      session,
+                                      session_hash,
+                                      coin_off,
+                                      &ev_sig))
+  {
+    GNUNET_break (0);
+    GNUNET_CRYPTO_rsa_signature_free (ev_sig.rsa_signature);
+    ev_sig.rsa_signature = NULL;
+  }
+  return ev_sig;
+}
+
+
+/**
+ * The client request was well-formed, now execute the DB transaction
+ * of a "/refresh/reveal" operation.  We use the @a ev_sigs and
+ * @a commit_coins to clean up resources after this function returns
+ * as we might experience retries of the database transaction.
+ *
+ * @param connection the MHD connection to handle
+ * @param session database session
+ * @param session_hash hash identifying the refresh session
+ * @param refresh_session information about the refresh operation we are doing
+ * @param melts array of "num_oldcoins" with information about melted coins
+ * @param denom_pubs array of "num_newcoins" denomination keys for the new coins
+ * @param[out] ev_sigs where to store generated signatures for the new coins,
+ *                     array of length "num_newcoins", memory released by the
+ *                     caller
+ * @param[out] commit_coins array of length "num_newcoins" to be used for
+ *                     information about the new coins from the commitment.
+ * @return MHD result code
+ */
+static int
+execute_refresh_reveal_transaction (struct MHD_Connection *connection,
+                                    struct TALER_EXCHANGEDB_Session *session,
+                                    const struct GNUNET_HashCode *session_hash,
+                                    const struct TALER_EXCHANGEDB_RefreshSession *refresh_session,
+                                    const struct TALER_EXCHANGEDB_RefreshMelt *melts,
+                                    const struct TALER_DenominationPublicKey *denom_pubs,
+                                    struct TALER_DenominationSignature *ev_sigs,
+                                    struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coins)
+{
+  unsigned int j;
+  struct TMH_KS_StateHandle *key_state;
+
+  START_TRANSACTION (session, connection);
+  if (GNUNET_OK !=
+      TMH_plugin->get_refresh_commit_coins (TMH_plugin->cls,
+                                            session,
+                                            session_hash,
+                                            refresh_session->noreveal_index,
+                                            refresh_session->num_newcoins,
+                                            commit_coins))
+  {
+    GNUNET_break (0);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+  key_state = TMH_KS_acquire ();
+  for (j=0;j<refresh_session->num_newcoins;j++)
+  {
+    if (NULL == ev_sigs[j].rsa_signature) /* could be non-NULL during retries */
+      ev_sigs[j] = refresh_exchange_coin (connection,
+                                      session,
+                                      session_hash,
+                                      key_state,
+                                      &denom_pubs[j],
+                                      &commit_coins[j],
+                                      j);
+    if (NULL == ev_sigs[j].rsa_signature)
+    {
+      TMH_KS_release (key_state);
+      return TMH_RESPONSE_reply_internal_db_error (connection);
+    }
+  }
+  TMH_KS_release (key_state);
+  COMMIT_TRANSACTION (session, connection);
+  return TMH_RESPONSE_reply_refresh_reveal_success (connection,
+                                                    refresh_session->num_newcoins,
+                                                    ev_sigs);
+}
+
+
+/**
+ * Execute a "/refresh/reveal".  The client is revealing to us the
+ * transfer keys for @a #TALER_CNC_KAPPA-1 sets of coins.  Verify that the
+ * revealed transfer keys would allow linkage to the blinded coins,
+ * and if so, return the signed coins for corresponding to the set of
+ * coins that was not chosen.
+ *
+ * @param connection the MHD connection to handle
+ * @param session_hash hash identifying the refresh session
+ * @param num_oldcoins size of y-dimension of @a transfer_privs array
+ * @param transfer_privs array with the revealed transfer keys,
+ *                      x-dimension must be #TALER_CNC_KAPPA - 1
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_refresh_reveal (struct MHD_Connection *connection,
+                               const struct GNUNET_HashCode *session_hash,
+                               unsigned int num_oldcoins,
+                               struct TALER_TransferPrivateKeyP **transfer_privs)
+{
+  int res;
+  struct TALER_EXCHANGEDB_Session *session;
+  struct TALER_EXCHANGEDB_RefreshSession refresh_session;
+  struct TALER_EXCHANGEDB_RefreshMelt *melts;
+  struct TALER_DenominationPublicKey *denom_pubs;
+  struct TALER_DenominationSignature *ev_sigs;
+  struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coins;
+  unsigned int i;
+  unsigned int j;
+  unsigned int off;
+
+  if (NULL == (session = TMH_plugin->get_session (TMH_plugin->cls,
+                                                  TMH_test_mode)))
+  {
+    GNUNET_break (0);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+
+  res = TMH_plugin->get_refresh_session (TMH_plugin->cls,
+                                         session,
+                                         session_hash,
+                                         &refresh_session);
+  if (GNUNET_NO == res)
+    return TMH_RESPONSE_reply_arg_invalid (connection,
+                                           "session_hash");
+  if (GNUNET_SYSERR == res)
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  if (0 == refresh_session.num_oldcoins)
+  {
+    GNUNET_break (0);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+
+  melts = GNUNET_malloc (refresh_session.num_oldcoins *
+                         sizeof (struct TALER_EXCHANGEDB_RefreshMelt));
+  for (j=0;j<refresh_session.num_oldcoins;j++)
+  {
+    if (GNUNET_OK !=
+        TMH_plugin->get_refresh_melt (TMH_plugin->cls,
+                                      session,
+                                      session_hash,
+                                      j,
+                                      &melts[j]))
+    {
+      GNUNET_break (0);
+      for (i=0;i<j;i++)
+      {
+        GNUNET_CRYPTO_rsa_signature_free (melts[i].coin.denom_sig.rsa_signature);
+        GNUNET_CRYPTO_rsa_public_key_free (melts[i].coin.denom_pub.rsa_public_key);
+      }
+      GNUNET_free (melts);
+      return TMH_RESPONSE_reply_internal_db_error (connection);
+    }
+  }
+  denom_pubs = GNUNET_malloc (refresh_session.num_newcoins *
+                              sizeof (struct TALER_DenominationPublicKey));
+  if (GNUNET_OK !=
+      TMH_plugin->get_refresh_order (TMH_plugin->cls,
+                                     session,
+                                     session_hash,
+                                     refresh_session.num_newcoins,
+                                     denom_pubs))
+  {
+    GNUNET_break (0);
+    GNUNET_free (denom_pubs);
+    for (i=0;i<refresh_session.num_oldcoins;i++)
+    {
+      GNUNET_CRYPTO_rsa_signature_free (melts[i].coin.denom_sig.rsa_signature);
+      GNUNET_CRYPTO_rsa_public_key_free (melts[i].coin.denom_pub.rsa_public_key);
+    }
+    GNUNET_free (melts);
+    return (MHD_YES == TMH_RESPONSE_reply_internal_db_error (connection))
+        ? GNUNET_NO : GNUNET_SYSERR;
+  }
+
+
+  off = 0;
+  for (i=0;i<TALER_CNC_KAPPA - 1;i++)
+  {
+    if (i == refresh_session.noreveal_index)
+      off = 1;
+    if (GNUNET_OK !=
+        (res = check_commitment (connection,
+                                 session,
+                                 session_hash,
+                                 i + off,
+                                 refresh_session.num_oldcoins,
+                                 transfer_privs[i],
+                                 melts,
+                                 refresh_session.num_newcoins,
+                                 denom_pubs)))
+    {
+      for (j=0;j<refresh_session.num_newcoins;j++)
+        GNUNET_CRYPTO_rsa_public_key_free (denom_pubs[j].rsa_public_key);
+      GNUNET_free (denom_pubs);
+      for (i=0;i<refresh_session.num_oldcoins;i++)
+      {
+        GNUNET_CRYPTO_rsa_signature_free (melts[i].coin.denom_sig.rsa_signature);
+        GNUNET_CRYPTO_rsa_public_key_free (melts[i].coin.denom_pub.rsa_public_key);
+      }
+      GNUNET_free (melts);
+      return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
+    }
+  }
+  for (i=0;i<refresh_session.num_oldcoins;i++)
+  {
+    GNUNET_CRYPTO_rsa_signature_free (melts[i].coin.denom_sig.rsa_signature);
+    GNUNET_CRYPTO_rsa_public_key_free (melts[i].coin.denom_pub.rsa_public_key);
+  }
+  GNUNET_free (melts);
+
+  /* Client request OK, start transaction */
+  commit_coins = GNUNET_malloc (refresh_session.num_newcoins *
+                                sizeof (struct TALER_EXCHANGEDB_RefreshCommitCoin));
+  ev_sigs = GNUNET_malloc (refresh_session.num_newcoins *
+                           sizeof (struct TALER_DenominationSignature));
+  res = execute_refresh_reveal_transaction (connection,
+                                            session,
+                                            session_hash,
+                                            &refresh_session,
+                                            melts,
+                                            denom_pubs,
+                                            ev_sigs,
+                                            commit_coins);
+  for (i=0;i<refresh_session.num_newcoins;i++)
+    if (NULL != ev_sigs[i].rsa_signature)
+    GNUNET_CRYPTO_rsa_signature_free (ev_sigs[i].rsa_signature);
+  for (j=0;j<refresh_session.num_newcoins;j++)
+    if (NULL != denom_pubs[j].rsa_public_key)
+      GNUNET_CRYPTO_rsa_public_key_free (denom_pubs[j].rsa_public_key);
+  GNUNET_free (ev_sigs);
+  GNUNET_free (denom_pubs);
+  GNUNET_free (commit_coins);
+  return res;
+}
+
+
+/**
+ * Closure for #handle_transfer_data().
+ */
+struct HTD_Context
+{
+
+  /**
+   * Session link data we collect.
+   */
+  struct TMH_RESPONSE_LinkSessionInfo *sessions;
+
+  /**
+   * Database session. Nothing to do with @a sessions.
+   */
+  struct TALER_EXCHANGEDB_Session *session;
+
+  /**
+   * MHD connection, for queueing replies.
+   */
+  struct MHD_Connection *connection;
+
+  /**
+   * Number of sessions the coin was melted into.
+   */
+  unsigned int num_sessions;
+
+  /**
+   * How are we expected to proceed. #GNUNET_SYSERR if we
+   * failed to return an error (should return #MHD_NO).
+   * #GNUNET_NO if we succeeded in queueing an MHD error
+   * (should return #MHD_YES from #TMH_execute_refresh_link),
+   * #GNUNET_OK if we should call #TMH_RESPONSE_reply_refresh_link_success().
+   */
+  int status;
+};
+
+
+/**
+ * Function called with the session hashes and transfer secret
+ * information for a given coin.  Gets the linkage data and
+ * builds the reply for the client.
+ *
+ *
+ * @param cls closure, a `struct HTD_Context`
+ * @param session_hash a session the coin was melted in
+ * @param transfer_pub public transfer key for the session
+ * @param shared_secret_enc set to shared secret for the session
+ */
+static void
+handle_transfer_data (void *cls,
+                      const struct GNUNET_HashCode *session_hash,
+                      const struct TALER_TransferPublicKeyP *transfer_pub,
+                      const struct TALER_EncryptedLinkSecretP *shared_secret_enc)
+{
+  struct HTD_Context *ctx = cls;
+  struct TALER_EXCHANGEDB_LinkDataList *ldl;
+  struct TMH_RESPONSE_LinkSessionInfo *lsi;
+
+  if (GNUNET_OK != ctx->status)
+    return;
+  ldl = TMH_plugin->get_link_data_list (TMH_plugin->cls,
+                                        ctx->session,
+                                        session_hash);
+  if (NULL == ldl)
+  {
+    ctx->status = GNUNET_NO;
+    if (MHD_NO ==
+        TMH_RESPONSE_reply_json_pack (ctx->connection,
+                                      MHD_HTTP_NOT_FOUND,
+                                      "{s:s}",
+                                      "error",
+                                      "link data not found (link)"))
+      ctx->status = GNUNET_SYSERR;
+    return;
+  }
+  GNUNET_array_grow (ctx->sessions,
+                     ctx->num_sessions,
+                     ctx->num_sessions + 1);
+  lsi = &ctx->sessions[ctx->num_sessions - 1];
+  lsi->transfer_pub = *transfer_pub;
+  lsi->shared_secret_enc = *shared_secret_enc;
+  lsi->ldl = ldl;
+}
+
+
+/**
+ * Execute a "/refresh/link".  Returns the linkage information that
+ * will allow the owner of a coin to follow the refresh trail to
+ * the refreshed coin.
+ *
+ * @param connection the MHD connection to handle
+ * @param coin_pub public key of the coin to link
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_refresh_link (struct MHD_Connection *connection,
+                             const struct TALER_CoinSpendPublicKeyP *coin_pub)
+{
+  struct HTD_Context ctx;
+  int res;
+  unsigned int i;
+
+  if (NULL == (ctx.session = TMH_plugin->get_session (TMH_plugin->cls,
+                                                      TMH_test_mode)))
+  {
+    GNUNET_break (0);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+  ctx.connection = connection;
+  ctx.num_sessions = 0;
+  ctx.sessions = NULL;
+  ctx.status = GNUNET_OK;
+  res = TMH_plugin->get_transfer (TMH_plugin->cls,
+                                  ctx.session,
+                                  coin_pub,
+                                  &handle_transfer_data,
+                                  &ctx);
+  if (GNUNET_SYSERR == ctx.status)
+  {
+    res = MHD_NO;
+    goto cleanup;
+  }
+  if (GNUNET_NO == ctx.status)
+  {
+    res = MHD_YES;
+    goto cleanup;
+  }
+  GNUNET_assert (GNUNET_OK == ctx.status);
+  if (0 == ctx.num_sessions)
+    return TMH_RESPONSE_reply_arg_unknown (connection,
+                                           "coin_pub");
+  res = TMH_RESPONSE_reply_refresh_link_success (connection,
+                                                 ctx.num_sessions,
+                                                 ctx.sessions);
+ cleanup:
+  for (i=0;i<ctx.num_sessions;i++)
+    TMH_plugin->free_link_data_list (TMH_plugin->cls,
+                                     ctx.sessions[i].ldl);
+  GNUNET_free_non_null (ctx.sessions);
+  return res;
+}
+
+
+/**
+ * Add an incoming transaction to the database.  Checks if the
+ * transaction is fresh (not a duplicate) and if so adds it to
+ * the database.
+ *
+ * @param connection the MHD connection to handle
+ * @param reserve_pub public key of the reserve
+ * @param amount amount to add to the reserve
+ * @param execution_time when did we receive the wire transfer
+ * @param wire details about the wire transfer
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_admin_add_incoming (struct MHD_Connection *connection,
+                                   const struct TALER_ReservePublicKeyP *reserve_pub,
+                                   const struct TALER_Amount *amount,
+                                   struct GNUNET_TIME_Absolute execution_time,
+                                   json_t *wire)
+{
+  struct TALER_EXCHANGEDB_Session *session;
+  int ret;
+
+  if (NULL == (session = TMH_plugin->get_session (TMH_plugin->cls,
+                                                  TMH_test_mode)))
+  {
+    GNUNET_break (0);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+  ret = TMH_plugin->reserves_in_insert (TMH_plugin->cls,
+                                        session,
+                                        reserve_pub,
+                                        amount,
+                                        execution_time,
+                                        wire);
+  if (GNUNET_SYSERR == ret)
+  {
+    GNUNET_break (0);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_OK,
+                                       "{s:s}",
+                                       "status",
+                                       (GNUNET_OK == ret)
+                                       ? "NEW"
+                                       : "DUP");
+}
+
+
+/**
+ * Closure for #handle_transaction_data.
+ */
+struct WtidTransactionContext
+{
+
+  /**
+   * Total amount of the wire transfer, as calculated by
+   * summing up the individual amounts. To be rounded down
+   * to calculate the real transfer amount at the end.
+   * Only valid if @e is_valid is #GNUNET_YES.
+   */
+  struct TALER_Amount total;
+
+  /**
+   * Public key of the merchant, only valid if @e is_valid
+   * is #GNUNET_YES.
+   */
+  struct TALER_MerchantPublicKeyP merchant_pub;
+
+  /**
+   * Hash of the wire details of the merchant (identical for all
+   * deposits), only valid if @e is_valid is #GNUNET_YES.
+   */
+  struct GNUNET_HashCode h_wire;
+
+  /**
+   * JSON array with details about the individual deposits.
+   */
+  json_t *deposits;
+
+  /**
+   * Initially #GNUNET_NO, if we found no deposits so far.  Set to
+   * #GNUNET_YES if we got transaction data, and the database replies
+   * remained consistent with respect to @e merchant_pub and @e h_wire
+   * (as they should).  Set to #GNUNET_SYSERR if we encountered an
+   * internal error.
+   */
+  int is_valid;
+
+};
+
+
+/**
+ * Function called with the results of the lookup of the
+ * transaction data for the given wire transfer identifier.
+ *
+ * @param cls our context for transmission
+ * @param merchant_pub public key of the merchant (should be same for all callbacks with the same @e cls)
+ * @param h_wire hash of wire transfer details of the merchant (should be same for all callbacks with the same @e cls)
+ * @param h_contract which contract was this payment about
+ * @param transaction_id merchant's transaction ID for the payment
+ * @param coin_pub which public key was this payment about
+ * @param deposit_value amount contributed by this coin in total
+ * @param deposit_fee deposit fee charged by exchange for this coin
+ */
+static void
+handle_transaction_data (void *cls,
+                         const struct TALER_MerchantPublicKeyP *merchant_pub,
+                         const struct GNUNET_HashCode *h_wire,
+                         const struct GNUNET_HashCode *h_contract,
+                         uint64_t transaction_id,
+                         const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                         const struct TALER_Amount *deposit_value,
+                         const struct TALER_Amount *deposit_fee)
+{
+  struct WtidTransactionContext *ctx = cls;
+  struct TALER_Amount delta;
+
+  if (GNUNET_SYSERR == ctx->is_valid)
+    return;
+  if (GNUNET_NO == ctx->is_valid)
+  {
+    ctx->merchant_pub = *merchant_pub;
+    ctx->h_wire = *h_wire;
+    ctx->is_valid = GNUNET_YES;
+    if (GNUNET_OK !=
+        TALER_amount_subtract (&ctx->total,
+                               deposit_value,
+                               deposit_fee))
+    {
+      GNUNET_break (0);
+      ctx->is_valid = GNUNET_SYSERR;
+      return;
+    }
+  }
+  else
+  {
+    if ( (0 != memcmp (&ctx->merchant_pub,
+                       merchant_pub,
+                       sizeof (struct TALER_MerchantPublicKeyP))) ||
+         (0 != memcmp (&ctx->h_wire,
+                       h_wire,
+                       sizeof (struct GNUNET_HashCode))) )
+    {
+      GNUNET_break (0);
+      ctx->is_valid = GNUNET_SYSERR;
+      return;
+    }
+    if (GNUNET_OK !=
+        TALER_amount_subtract (&delta,
+                               deposit_value,
+                               deposit_fee))
+    {
+      GNUNET_break (0);
+      ctx->is_valid = GNUNET_SYSERR;
+      return;
+    }
+    if (GNUNET_OK !=
+        TALER_amount_add (&ctx->total,
+                          &ctx->total,
+                          &delta))
+    {
+      GNUNET_break (0);
+      ctx->is_valid = GNUNET_SYSERR;
+      return;
+    }
+  }
+  /* NOTE: We usually keep JSON stuff out of the _DB file, and this
+     is also ugly if we ever add signatures over this data. (#4135) */
+  json_array_append (ctx->deposits,
+                     json_pack ("{s:o, s:o, s:o, s:I, s:o}",
+                                "deposit_value", TALER_json_from_amount (deposit_value),
+                                "deposit_fee", TALER_json_from_amount (deposit_fee),
+                                "H_contract", TALER_json_from_data (h_contract,
+                                                                    sizeof (struct GNUNET_HashCode)),
+                                "transaction_id", (json_int_t) transaction_id,
+                                "coin_pub", TALER_json_from_data (coin_pub,
+                                                                  sizeof (struct TALER_CoinSpendPublicKeyP))));
+}
+
+
+/**
+ * Execute a "/wire/deposits".  Returns the transaction information
+ * associated with the given wire transfer identifier.
+ *
+ * @param connection the MHD connection to handle
+ * @param wtid wire transfer identifier to resolve
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_wire_deposits (struct MHD_Connection *connection,
+                             const struct TALER_WireTransferIdentifierRawP *wtid)
+{
+  int ret;
+  struct WtidTransactionContext ctx;
+  struct TALER_EXCHANGEDB_Session *session;
+
+  if (NULL == (session = TMH_plugin->get_session (TMH_plugin->cls,
+                                                  TMH_test_mode)))
+  {
+    GNUNET_break (0);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+  ctx.is_valid = GNUNET_NO;
+  ctx.deposits = json_array ();
+  ret = TMH_plugin->lookup_wire_transfer (TMH_plugin->cls,
+                                          session,
+                                          wtid,
+                                          &handle_transaction_data,
+                                          &ctx);
+  if (GNUNET_SYSERR == ret)
+  {
+    GNUNET_break (0);
+    json_decref (ctx.deposits);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+  if (GNUNET_SYSERR == ctx.is_valid)
+  {
+    GNUNET_break (0);
+    json_decref (ctx.deposits);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+  if (GNUNET_NO == ctx.is_valid)
+  {
+    json_decref (ctx.deposits);
+    return TMH_RESPONSE_reply_arg_unknown (connection,
+                                           "wtid");
+  }
+  return TMH_RESPONSE_reply_wire_deposit_details (connection,
+                                                  &ctx.total,
+                                                  &ctx.merchant_pub,
+                                                  &ctx.h_wire,
+                                                  ctx.deposits);
+}
+
+
+/**
+ * Closure for #handle_wtid_data.
+ */
+struct DepositWtidContext
+{
+
+  /**
+   * Where should we send the reply?
+   */
+  struct MHD_Connection *connection;
+
+  /**
+   * Hash of the contract we are looking up.
+   */
+  struct GNUNET_HashCode h_contract;
+
+  /**
+   * Hash of the wire transfer details we are looking up.
+   */
+  struct GNUNET_HashCode h_wire;
+
+  /**
+   * Public key we are looking up.
+   */
+  struct TALER_CoinSpendPublicKeyP coin_pub;
+
+  /**
+   * Transaction ID we are looking up.
+   */
+  uint64_t transaction_id;
+
+  /**
+   * MHD result code to return.
+   */
+  int res;
+};
+
+
+/**
+ * Function called with the results of the lookup of the
+ * wire transfer identifier information.
+ *
+ * @param cls our context for transmission
+ * @param wtid raw wire transfer identifier, NULL
+ *         if the transaction was not yet done
+ * @param coin_contribution how much did the coin we asked about
+ *        contribute to the total transfer value? (deposit value including fee)
+ * @param coin_fee how much did the exchange charge for the deposit fee
+ * @param execution_time when was the transaction done, or
+ *         when we expect it to be done (if @a wtid was NULL);
+ *         #GNUNET_TIME_UNIT_FOREVER_ABS if the /deposit is unknown
+ *         to the exchange
+ */
+static void
+handle_wtid_data (void *cls,
+		  const struct TALER_WireTransferIdentifierRawP *wtid,
+                  const struct TALER_Amount *coin_contribution,
+                  const struct TALER_Amount *coin_fee,
+		  struct GNUNET_TIME_Absolute execution_time)
+{
+  struct DepositWtidContext *ctx = cls;
+  struct TALER_Amount coin_delta;
+
+  if (NULL == wtid)
+  {
+    ctx->res = TMH_RESPONSE_reply_deposit_pending (ctx->connection,
+                                                   execution_time);
+  }
+  else
+  {
+    if (GNUNET_SYSERR ==
+        TALER_amount_subtract (&coin_delta,
+                               coin_contribution,
+                               coin_fee))
+    {
+      GNUNET_break (0);
+      ctx->res = TMH_RESPONSE_reply_internal_db_error (ctx->connection);
+    }
+    else
+    {
+      ctx->res = TMH_RESPONSE_reply_deposit_wtid (ctx->connection,
+                                                  &ctx->h_contract,
+                                                  &ctx->h_wire,
+                                                  &ctx->coin_pub,
+                                                  &coin_delta,
+                                                  ctx->transaction_id,
+                                                  wtid,
+                                                  execution_time);
+    }
+  }
+}
+
+
+/**
+ * Execute a "/deposit/wtid".  Returns the transfer information
+ * associated with the given deposit.
+ *
+ * @param connection the MHD connection to handle
+ * @param h_contract hash of the contract
+ * @param h_wire hash of the wire details
+ * @param coin_pub public key of the coin to link
+ * @param merchant_pub public key of the merchant
+ * @param transaction_id transaction ID of the merchant
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_deposit_wtid (struct MHD_Connection *connection,
+                             const struct GNUNET_HashCode *h_contract,
+			     const struct GNUNET_HashCode *h_wire,
+			     const struct TALER_CoinSpendPublicKeyP *coin_pub,
+			     const struct TALER_MerchantPublicKeyP *merchant_pub,
+			     uint64_t transaction_id)
+{
+  int ret;
+  struct DepositWtidContext ctx;
+  struct TALER_EXCHANGEDB_Session *session;
+
+  if (NULL == (session = TMH_plugin->get_session (TMH_plugin->cls,
+                                                  TMH_test_mode)))
+  {
+    GNUNET_break (0);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+  ctx.connection = connection;
+  ctx.h_contract = *h_contract;
+  ctx.h_wire = *h_wire;
+  ctx.coin_pub = *coin_pub;
+  ctx.transaction_id = transaction_id;
+  ctx.res = GNUNET_SYSERR;
+  ret = TMH_plugin->wire_lookup_deposit_wtid (TMH_plugin->cls,
+                                              session,
+					      h_contract,
+					      h_wire,
+					      coin_pub,
+					      merchant_pub,
+					      transaction_id,
+					      &handle_wtid_data,
+					      &ctx);
+  if (GNUNET_SYSERR == ret)
+  {
+    GNUNET_break (0);
+    GNUNET_break (GNUNET_SYSERR == ctx.res);
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  }
+  if (GNUNET_NO == ret)
+  {
+    GNUNET_break (GNUNET_SYSERR == ctx.res);
+    return TMH_RESPONSE_reply_deposit_unknown (connection);
+  }
+  if (GNUNET_SYSERR == ctx.res)
+  {
+    GNUNET_break (0);
+    return TMH_RESPONSE_reply_internal_error (connection,
+                                              "bug resolving deposit wtid");
+  }
+  return ctx.res;
+}
+
+
+/* end of taler-exchange-httpd_db.c */
diff --git a/src/exchange/taler-exchange-httpd_db.h b/src/exchange/taler-exchange-httpd_db.h
new file mode 100644
index 000000000..d6245a702
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_db.h
@@ -0,0 +1,230 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange/taler-exchange-httpd_db.h
+ * @brief High-level (transactional-layer) database operations for the exchange
+ * @author Chrisitan Grothoff
+ */
+#ifndef TALER_EXCHANGE_HTTPD_DB_H
+#define TALER_EXCHANGE_HTTPD_DB_H
+
+#include <microhttpd.h>
+#include "taler_exchangedb_plugin.h"
+
+
+/**
+ * Execute a "/deposit".  The validity of the coin and signature
+ * have already been checked.  The database must now check that
+ * the coin is not (double or over) spent, and execute the
+ * transaction (record details, generate success or failure response).
+ *
+ * @param connection the MHD connection to handle
+ * @param deposit information about the deposit
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_deposit (struct MHD_Connection *connection,
+                        const struct TALER_EXCHANGEDB_Deposit *deposit);
+
+
+/**
+ * Execute a "/reserve/status".  Given the public key of a reserve,
+ * return the associated transaction history.
+ *
+ * @param connection the MHD connection to handle
+ * @param reserve_pub public key of the reserve to check
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_reserve_status (struct MHD_Connection *connection,
+                               const struct TALER_ReservePublicKeyP *reserve_pub);
+
+
+/**
+ * Execute a "/reserve/withdraw".  Given a reserve and a properly signed
+ * request to withdraw a coin, check the balance of the reserve and
+ * if it is sufficient, store the request and return the signed
+ * blinded envelope.
+ *
+ * @param connection the MHD connection to handle
+ * @param reserve public key of the reserve
+ * @param denomination_pub public key of the denomination requested
+ * @param blinded_msg blinded message to be signed
+ * @param blinded_msg_len number of bytes in @a blinded_msg
+ * @param signature signature over the withdraw request, to be stored in DB
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_reserve_withdraw (struct MHD_Connection *connection,
+                                 const struct TALER_ReservePublicKeyP *reserve,
+                                 const struct TALER_DenominationPublicKey *denomination_pub,
+                                 const char *blinded_msg,
+                                 size_t blinded_msg_len,
+                                 const struct TALER_ReserveSignatureP *signature);
+
+
+/**
+ * @brief Details about a melt operation of an individual coin.
+ */
+struct TMH_DB_MeltDetails
+{
+
+  /**
+   * Information about the coin being melted.
+   */
+  struct TALER_CoinPublicInfo coin_info;
+
+  /**
+   * Signature allowing the melt (using
+   * a `struct TALER_EXCHANGEDB_RefreshMeltConfirmSignRequestBody`) to sign over.
+   */
+  struct TALER_CoinSpendSignatureP melt_sig;
+
+  /**
+   * How much of the coin's value did the client allow to be melted?
+   * This amount includes the fees, so the final amount contributed
+   * to the melt is this value minus the fee for melting the coin.
+   */
+  struct TALER_Amount melt_amount_with_fee;
+
+  /**
+   * What fee is earned by the exchange?  Set delayed during
+   * #verify_coin_public_info().
+   */
+  struct TALER_Amount melt_fee;
+};
+
+
+/**
+ * Execute a "/refresh/melt". We have been given a list of valid
+ * coins and a request to melt them into the given
+ * @a refresh_session_pub.  Check that the coins all have the
+ * required value left and if so, store that they have been
+ * melted and confirm the melting operation to the client.
+ *
+ * @param connection the MHD connection to handle
+ * @param session_hash hash code of the session the coins are melted into
+ * @param num_new_denoms number of entries in @a denom_pubs, size of y-dimension of @a commit_coin array
+ * @param denom_pubs array of public denomination keys for the refresh (?)
+ * @param coin_count number of entries in @ a coin_melt_details, size of y-dimension of @a commit_link array
+ * @param coin_melt_details signatures and (residual) value of and information about the respective coin to be melted
+ * @param commit_coin 2d array of coin commitments (what the exchange is to sign
+ *                    once the "/refres/reveal" of cut and choose is done)
+ * @param commit_link 2d array of coin link commitments (what the exchange is
+ *                    to return via "/refresh/link" to enable linkage in the
+ *                    future)
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_refresh_melt (struct MHD_Connection *connection,
+                             const struct GNUNET_HashCode *session_hash,
+                             unsigned int num_new_denoms,
+                             const struct TALER_DenominationPublicKey *denom_pubs,
+                             unsigned int coin_count,
+                             const struct TMH_DB_MeltDetails *coin_melt_details,
+                             struct TALER_EXCHANGEDB_RefreshCommitCoin *const* commit_coin,
+                             struct TALER_RefreshCommitLinkP *const* commit_link);
+
+
+/**
+ * Execute a "/refresh/reveal".  The client is revealing to us the
+ * transfer keys for #TALER_CNC_KAPPA-1 sets of coins.  Verify that the
+ * revealed transfer keys would allow linkage to the blinded coins,
+ * and if so, return the signed coins for corresponding to the set of
+ * coins that was not chosen.
+ *
+ * @param connection the MHD connection to handle
+ * @param session_hash hash over the refresh session
+ * @param num_oldcoins size of y-dimension of @a transfer_privs array
+ * @param transfer_privs array with the revealed transfer keys, #TALER_CNC_KAPPA is 1st-dimension
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_refresh_reveal (struct MHD_Connection *connection,
+                               const struct GNUNET_HashCode *session_hash,
+                               unsigned int num_oldcoins,
+                               struct TALER_TransferPrivateKeyP **transfer_privs);
+
+
+/**
+ * Execute a "/refresh/link".  Returns the linkage information that
+ * will allow the owner of a coin to follow the refresh trail to the
+ * refreshed coin.
+ *
+ * @param connection the MHD connection to handle
+ * @param coin_pub public key of the coin to link
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_refresh_link (struct MHD_Connection *connection,
+                             const struct TALER_CoinSpendPublicKeyP *coin_pub);
+
+
+
+/**
+ * Add an incoming transaction to the database.
+ *
+ * @param connection the MHD connection to handle
+ * @param reserve_pub public key of the reserve
+ * @param amount amount to add to the reserve
+ * @param execution_time when did we receive the wire transfer
+ * @param wire details about the wire transfer
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_admin_add_incoming (struct MHD_Connection *connection,
+                                   const struct TALER_ReservePublicKeyP *reserve_pub,
+                                   const struct TALER_Amount *amount,
+                                   struct GNUNET_TIME_Absolute execution_time,
+                                   json_t *wire);
+
+
+/**
+ * Execute a "/wire/deposits".  Returns the transaction information
+ * associated with the given wire transfer identifier.
+ *
+ * @param connection the MHD connection to handle
+ * @param wtid wire transfer identifier to resolve
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_wire_deposits (struct MHD_Connection *connection,
+                              const struct TALER_WireTransferIdentifierRawP *wtid);
+
+
+/**
+ * Execute a "/deposit/wtid".  Returns the transfer information
+ * associated with the given deposit.
+ *
+ * @param connection the MHD connection to handle
+ * @param h_contract hash of the contract
+ * @param h_wire hash of the wire details
+ * @param coin_pub public key of the coin to link
+ * @param merchant_pub public key of the merchant
+ * @param transaction_id transaction ID of the merchant
+ * @return MHD result code
+ */
+int
+TMH_DB_execute_deposit_wtid (struct MHD_Connection *connection,
+                             const struct GNUNET_HashCode *h_contract,
+			     const struct GNUNET_HashCode *h_wire,
+			     const struct TALER_CoinSpendPublicKeyP *coin_pub,
+			     const struct TALER_MerchantPublicKeyP *merchant_pub,
+			     uint64_t transaction_id);
+
+
+#endif
+/* TALER_EXCHANGE_HTTPD_DB_H */
diff --git a/src/exchange/taler-exchange-httpd_deposit.c b/src/exchange/taler-exchange-httpd_deposit.c
new file mode 100644
index 000000000..629d6f8b5
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_deposit.c
@@ -0,0 +1,281 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_deposit.c
+ * @brief Handle /deposit requests; parses the POST and JSON and
+ *        verifies the coin signature before handing things off
+ *        to the database.
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ *
+ * TODO:
+ * - ugly if-construction for deposit type
+ */
+#include "platform.h"
+#include <gnunet/gnunet_util_lib.h>
+#include <jansson.h>
+#include <microhttpd.h>
+#include <pthread.h>
+#include "taler-exchange-httpd_parsing.h"
+#include "taler-exchange-httpd_deposit.h"
+#include "taler-exchange-httpd_responses.h"
+#include "taler-exchange-httpd_keystate.h"
+#include "taler-exchange-httpd_validation.h"
+
+
+/**
+ * We have parsed the JSON information about the deposit, do some
+ * basic sanity checks (especially that the signature on the coin is
+ * valid, and that this type of coin exists) and then execute the
+ * deposit.
+ *
+ * @param connection the MHD connection to handle
+ * @param deposit information about the deposit
+ * @return MHD result code
+ */
+static int
+verify_and_execute_deposit (struct MHD_Connection *connection,
+                            const struct TALER_EXCHANGEDB_Deposit *deposit)
+{
+  struct TMH_KS_StateHandle *key_state;
+  struct TALER_DepositRequestPS dr;
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki;
+  struct TALER_Amount fee_deposit;
+
+  dr.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_DEPOSIT);
+  dr.purpose.size = htonl (sizeof (struct TALER_DepositRequestPS));
+  dr.h_contract = deposit->h_contract;
+  dr.h_wire = deposit->h_wire;
+  dr.timestamp = GNUNET_TIME_absolute_hton (deposit->timestamp);
+  dr.refund_deadline = GNUNET_TIME_absolute_hton (deposit->refund_deadline);
+  dr.transaction_id = GNUNET_htonll (deposit->transaction_id);
+  TALER_amount_hton (&dr.amount_with_fee,
+                     &deposit->amount_with_fee);
+  TALER_amount_hton (&dr.deposit_fee,
+                     &deposit->deposit_fee);
+  dr.merchant = deposit->merchant_pub;
+  dr.coin_pub = deposit->coin.coin_pub;
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_DEPOSIT,
+                                  &dr.purpose,
+                                  &deposit->csig.eddsa_signature,
+                                  &deposit->coin.coin_pub.eddsa_pub))
+  {
+    TALER_LOG_WARNING ("Invalid signature on /deposit request\n");
+    return TMH_RESPONSE_reply_signature_invalid (connection,
+                                                 "coin_sig");
+  }
+  /* check denomination exists and is valid */
+  key_state = TMH_KS_acquire ();
+  dki = TMH_KS_denomination_key_lookup (key_state,
+                                        &deposit->coin.denom_pub,
+					TMH_KS_DKU_DEPOSIT);
+  if (NULL == dki)
+  {
+    TMH_KS_release (key_state);
+    TALER_LOG_WARNING ("Unknown denomination key in /deposit request\n");
+    return TMH_RESPONSE_reply_arg_unknown (connection,
+                                           "denom_pub");
+  }
+  /* check coin signature */
+  if (GNUNET_YES !=
+      TALER_test_coin_valid (&deposit->coin))
+  {
+    TALER_LOG_WARNING ("Invalid coin passed for /deposit\n");
+    TMH_KS_release (key_state);
+    return TMH_RESPONSE_reply_signature_invalid (connection,
+                                                 "ub_sig");
+  }
+  TALER_amount_ntoh (&fee_deposit,
+                     &dki->issue.properties.fee_deposit);
+  if (0 < TALER_amount_cmp (&fee_deposit,
+                            &deposit->amount_with_fee))
+  {
+    TMH_KS_release (key_state);
+    return TMH_RESPONSE_reply_external_error (connection,
+                                              "deposited amount smaller than depositing fee");
+  }
+  TMH_KS_release (key_state);
+
+  return TMH_DB_execute_deposit (connection,
+                                 deposit);
+}
+
+
+/**
+ * Handle a "/deposit" request.  This function parses the
+ * JSON information and then calls #verify_and_execute_deposit()
+ * to verify the signatures and execute the deposit.
+ *
+ * @param connection the MHD connection to handle
+ * @param root root of the posted JSON
+ * @param amount how much should be deposited
+ * @param wire json describing the wire details (?)
+ * @return MHD result code
+  */
+static int
+parse_and_handle_deposit_request (struct MHD_Connection *connection,
+                                  const json_t *root,
+                                  const struct TALER_Amount *amount,
+                                  json_t *wire)
+{
+  int res;
+  struct TALER_EXCHANGEDB_Deposit deposit;
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki;
+  struct TMH_KS_StateHandle *ks;
+  struct GNUNET_HashCode my_h_wire;
+  struct TMH_PARSE_FieldSpecification spec[] = {
+    TMH_PARSE_member_denomination_public_key ("denom_pub", &deposit.coin.denom_pub),
+    TMH_PARSE_member_denomination_signature ("ub_sig", &deposit.coin.denom_sig),
+    TMH_PARSE_member_fixed ("coin_pub", &deposit.coin.coin_pub),
+    TMH_PARSE_member_fixed ("merchant_pub", &deposit.merchant_pub),
+    TMH_PARSE_member_fixed ("H_contract", &deposit.h_contract),
+    TMH_PARSE_member_fixed ("H_wire", &deposit.h_wire),
+    TMH_PARSE_member_fixed ("coin_sig",  &deposit.csig),
+    TMH_PARSE_member_uint64 ("transaction_id", &deposit.transaction_id),
+    TMH_PARSE_member_time_abs ("timestamp", &deposit.timestamp),
+    TMH_PARSE_member_time_abs ("refund_deadline", &deposit.refund_deadline),
+    TMH_PARSE_member_time_abs ("edate", &deposit.wire_deadline),
+    TMH_PARSE_MEMBER_END
+  };
+
+  memset (&deposit, 0, sizeof (deposit));
+  res = TMH_PARSE_json_data (connection,
+                             root,
+                             spec);
+  if (GNUNET_SYSERR == res)
+    return MHD_NO; /* hard failure */
+  if (GNUNET_NO == res)
+    return MHD_YES; /* failure */
+
+  if (GNUNET_YES !=
+      TMH_json_validate_wireformat (wire))
+  {
+    TMH_PARSE_release_data (spec);
+    return TMH_RESPONSE_reply_arg_unknown (connection,
+                                           "wire");
+  }
+  if (GNUNET_OK !=
+      TALER_hash_json (wire,
+                       &my_h_wire))
+  {
+    TALER_LOG_WARNING ("Failed to parse JSON wire format specification for /deposit request\n");
+    TMH_PARSE_release_data (spec);
+    return TMH_RESPONSE_reply_arg_invalid (connection,
+                                           "wire");
+  }
+  if (0 != memcmp (&deposit.h_wire,
+		   &my_h_wire,
+		   sizeof (struct GNUNET_HashCode)))
+  {
+    /* Client hashed contract differently than we did, reject */
+    TMH_PARSE_release_data (spec);
+    return TMH_RESPONSE_reply_arg_invalid (connection,
+                                           "H_wire");
+  }
+  ks = TMH_KS_acquire ();
+  dki = TMH_KS_denomination_key_lookup (ks,
+                                        &deposit.coin.denom_pub,
+					TMH_KS_DKU_DEPOSIT);
+  if (NULL == dki)
+  {
+    TMH_KS_release (ks);
+    TMH_PARSE_release_data (spec);
+    return TMH_RESPONSE_reply_arg_unknown (connection,
+                                           "denom_pub");
+  }
+  TALER_amount_ntoh (&deposit.deposit_fee,
+                     &dki->issue.properties.fee_deposit);
+  TMH_KS_release (ks);
+  deposit.wire = wire;
+  deposit.amount_with_fee = *amount;
+  if (-1 == TALER_amount_cmp (&deposit.amount_with_fee,
+                              &deposit.deposit_fee))
+  {
+    /* Total amount smaller than fee, invalid */
+     TMH_PARSE_release_data (spec);
+    return TMH_RESPONSE_reply_arg_invalid (connection,
+                                           "f");
+  }
+  res = verify_and_execute_deposit (connection,
+                                    &deposit);
+  TMH_PARSE_release_data (spec);
+  return res;
+}
+
+
+/**
+ * Handle a "/deposit" request.  Parses the JSON in the post to find
+ * the "type" (either DIRECT_DEPOSIT or INCREMENTAL_DEPOSIT), and, if
+ * successful, passes the JSON data to
+ * #parse_and_handle_deposit_request() to further check the details
+ * of the operation specified in the "wire" field of the JSON data.
+ * If everything checks out, this will ultimately lead to the
+ * "/deposit" being executed, or rejected.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_DEPOSIT_handler_deposit (struct TMH_RequestHandler *rh,
+                             struct MHD_Connection *connection,
+                             void **connection_cls,
+                             const char *upload_data,
+                             size_t *upload_data_size)
+{
+  json_t *json;
+  json_t *wire;
+  int res;
+  struct TALER_Amount amount;
+  struct TMH_PARSE_FieldSpecification spec[] = {
+    TMH_PARSE_member_object ("wire", &wire),
+    TMH_PARSE_member_amount ("f", &amount),
+    TMH_PARSE_MEMBER_END
+  };
+
+  res = TMH_PARSE_post_json (connection,
+                             connection_cls,
+                             upload_data,
+                             upload_data_size,
+                             &json);
+  if (GNUNET_SYSERR == res)
+    return MHD_NO;
+  if ( (GNUNET_NO == res) || (NULL == json) )
+    return MHD_YES;
+  res = TMH_PARSE_json_data (connection,
+                             json,
+                             spec);
+  if (GNUNET_OK != res)
+  {
+    json_decref (json);
+    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
+  }
+  res = parse_and_handle_deposit_request (connection,
+                                          json,
+                                          &amount,
+                                          wire);
+  TMH_PARSE_release_data (spec);
+  json_decref (json);
+  return res;
+}
+
+
+/* end of taler-exchange-httpd_deposit.c */
diff --git a/src/exchange/taler-exchange-httpd_deposit.h b/src/exchange/taler-exchange-httpd_deposit.h
new file mode 100644
index 000000000..6e84573e5
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_deposit.h
@@ -0,0 +1,54 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_deposit.h
+ * @brief Handle /deposit requests
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#ifndef TALER_EXCHANGE_HTTPD_DEPOSIT_H
+#define TALER_EXCHANGE_HTTPD_DEPOSIT_H
+
+#include <gnunet/gnunet_util_lib.h>
+#include <microhttpd.h>
+#include "taler-exchange-httpd.h"
+
+
+/**
+ * Handle a "/deposit" request.  Parses the JSON in the post to find
+ * the "type" (either DIRECT_DEPOSIT or INCREMENTAL_DEPOSIT), and, if
+ * successful, passes the JSON data to
+ * #parse_and_handle_deposit_request() to further check the details
+ * of the operation specified in the "wire" field of the JSON data.
+ * If everything checks out, this will ultimately lead to the
+ * "/deposit" being executed, or rejected.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_DEPOSIT_handler_deposit (struct TMH_RequestHandler *rh,
+                             struct MHD_Connection *connection,
+                             void **connection_cls,
+                             const char *upload_data,
+                             size_t *upload_data_size);
+
+#endif
diff --git a/src/exchange/taler-exchange-httpd_keystate.c b/src/exchange/taler-exchange-httpd_keystate.c
new file mode 100644
index 000000000..e278882fe
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_keystate.c
@@ -0,0 +1,1011 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_keystate.c
+ * @brief management of our coin signing keys
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <pthread.h>
+#include "taler-exchange-httpd_keystate.h"
+#include "taler-exchange-httpd_responses.h"
+#include "taler_exchangedb_plugin.h"
+
+
+/**
+ * Snapshot of the (coin and signing) keys (including private keys) of
+ * the exchange.  There can be multiple instances of this struct, as it is
+ * reference counted and only destroyed once the last user is done
+ * with it.  The current instance is acquired using
+ * #TMH_KS_acquire().  Using this function increases the
+ * reference count.  The contents of this structure (except for the
+ * reference counter) should be considered READ-ONLY until it is
+ * ultimately destroyed (as there can be many concurrent users).
+ */
+struct TMH_KS_StateHandle
+{
+  /**
+   * JSON array with denomination keys.  (Currently not really used
+   * after initialization.)
+   */
+  json_t *denom_keys_array;
+
+  /**
+   * JSON array with signing keys. (Currently not really used
+   * after initialization.)
+   */
+  json_t *sign_keys_array;
+
+  /**
+   * JSON array with auditor information. (Currently not really used
+   * after initialization.)
+   */
+  json_t *auditors_array;
+
+  /**
+   * Cached JSON text that the exchange will send for a "/keys" request.
+   * Includes our @e TMH_master_public_key public key, the signing and
+   * denomination keys as well as the @e reload_time.
+   */
+  char *keys_json;
+
+  /**
+   * Mapping from denomination keys to denomination key issue struct.
+   * Used to lookup the key by hash.
+   */
+  struct GNUNET_CONTAINER_MultiHashMap *denomkey_map;
+
+  /**
+   * Hash context we used to combine the hashes of all denomination
+   * keys into one big hash.
+   */
+  struct GNUNET_HashContext *hash_context;
+
+  /**
+   * When did we initiate the key reloading?
+   */
+  struct GNUNET_TIME_Absolute reload_time;
+
+  /**
+   * When is the next key invalid and we have to reload? (We also
+   * reload on SIGUSR1.)
+   */
+  struct GNUNET_TIME_Absolute next_reload;
+
+  /**
+   * Exchange signing key that should be used currently.
+   */
+  struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP current_sign_key_issue;
+
+  /**
+   * Reference count.  The struct is released when the RC hits zero.
+   */
+  unsigned int refcnt;
+};
+
+
+/**
+ * Exchange key state.  Never use directly, instead access via
+ * #TMH_KS_acquire() and #TMH_KS_release().
+ */
+static struct TMH_KS_StateHandle *internal_key_state;
+
+/**
+ * Mutex protecting access to #internal_key_state.
+ */
+static pthread_mutex_t internal_key_state_mutex = PTHREAD_MUTEX_INITIALIZER;
+
+/**
+ * Pipe used for signaling reloading of our key state.
+ */
+static int reload_pipe[2];
+
+
+/**
+ * Convert the public part of a denomination key issue to a JSON
+ * object.
+ *
+ * @param pk public key of the denomination key
+ * @param dki the denomination key issue
+ * @return a JSON object describing the denomination key isue (public part)
+ */
+static json_t *
+denom_key_issue_to_json (const struct TALER_DenominationPublicKey *pk,
+                         const struct TALER_EXCHANGEDB_DenominationKeyInformationP *dki)
+{
+  struct TALER_Amount value;
+  struct TALER_Amount fee_withdraw;
+  struct TALER_Amount fee_deposit;
+  struct TALER_Amount fee_refresh;
+
+  TALER_amount_ntoh (&value,
+                     &dki->properties.value);
+  TALER_amount_ntoh (&fee_withdraw,
+                     &dki->properties.fee_withdraw);
+  TALER_amount_ntoh (&fee_deposit,
+                     &dki->properties.fee_deposit);
+  TALER_amount_ntoh (&fee_refresh,
+                     &dki->properties.fee_refresh);
+  return
+    json_pack ("{s:o, s:o, s:o, s:o, s:o, s:o, s:o, s:o, s:o, s:o}",
+               "master_sig",
+               TALER_json_from_data (&dki->signature,
+                                     sizeof (struct GNUNET_CRYPTO_EddsaSignature)),
+               "stamp_start",
+               TALER_json_from_abs (GNUNET_TIME_absolute_ntoh (dki->properties.start)),
+               "stamp_expire_withdraw",
+               TALER_json_from_abs (GNUNET_TIME_absolute_ntoh (dki->properties.expire_withdraw)),
+               "stamp_expire_deposit",
+               TALER_json_from_abs (GNUNET_TIME_absolute_ntoh (dki->properties.expire_spend)),
+               "stamp_expire_legal",
+               TALER_json_from_abs (GNUNET_TIME_absolute_ntoh (dki->properties.expire_legal)),
+               "denom_pub",
+               TALER_json_from_rsa_public_key (pk->rsa_public_key),
+               "value",
+               TALER_json_from_amount (&value),
+               "fee_withdraw",
+               TALER_json_from_amount (&fee_withdraw),
+               "fee_deposit",
+               TALER_json_from_amount (&fee_deposit),
+               "fee_refresh",
+               TALER_json_from_amount (&fee_refresh));
+}
+
+
+/**
+ * Get the relative time value that describes how
+ * far in the future do we want to provide coin keys.
+ *
+ * @return the provide duration
+ */
+static struct GNUNET_TIME_Relative
+TALER_EXCHANGE_conf_duration_provide ()
+{
+  struct GNUNET_TIME_Relative rel;
+
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_time (cfg,
+                                           "exchange_keys",
+                                           "lookahead_provide",
+                                           &rel))
+  {
+    GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
+                               "exchange_keys",
+                               "lookahead_provide",
+                               "time value required");
+    GNUNET_assert (0);
+  }
+  return rel;
+}
+
+
+/**
+ * Iterator for (re)loading/initializing denomination keys.
+ *
+ * @param cls closure
+ * @param dki the denomination key issue
+ * @param alias coin alias
+ * @return #GNUNET_OK to continue to iterate,
+ *  #GNUNET_NO to stop iteration with no error,
+ *  #GNUNET_SYSERR to abort iteration with error!
+ */
+static int
+reload_keys_denom_iter (void *cls,
+                        const char *alias,
+                        const struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki)
+{
+  struct TMH_KS_StateHandle *ctx = cls;
+  struct GNUNET_TIME_Absolute now;
+  struct GNUNET_TIME_Absolute horizon;
+  struct GNUNET_HashCode denom_key_hash;
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *d2;
+  struct TALER_EXCHANGEDB_Session *session;
+  int res;
+
+  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+              "Loading denomination key `%s'\n",
+              alias);
+  horizon = GNUNET_TIME_relative_to_absolute (TALER_EXCHANGE_conf_duration_provide ());
+  if (GNUNET_TIME_absolute_ntoh (dki->issue.properties.start).abs_value_us >
+      horizon.abs_value_us)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "Skipping future denomination key `%s'\n",
+                alias);
+    return GNUNET_OK;
+  }
+  now = GNUNET_TIME_absolute_get ();
+  if (GNUNET_TIME_absolute_ntoh (dki->issue.properties.expire_spend).abs_value_us <
+      now.abs_value_us)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "Skipping expired denomination key `%s'\n",
+                alias);
+    return GNUNET_OK;
+  }
+
+  GNUNET_CRYPTO_rsa_public_key_hash (dki->denom_pub.rsa_public_key,
+                                     &denom_key_hash);
+  GNUNET_CRYPTO_hash_context_read (ctx->hash_context,
+                                   &denom_key_hash,
+                                   sizeof (struct GNUNET_HashCode));
+  session = TMH_plugin->get_session (TMH_plugin->cls,
+                                     TMH_test_mode);
+  if (NULL == session)
+    return GNUNET_SYSERR;
+  /* Try to insert DKI into DB until we succeed; note that if the DB
+     failure is persistent, this code may loop forever (as there is no
+     sane alternative, we cannot continue without the DKI being in the
+     DB). */
+  res = GNUNET_SYSERR;
+  while (GNUNET_OK != res)
+  {
+    res = TMH_plugin->start (TMH_plugin->cls,
+                             session);
+    if (GNUNET_OK != res)
+    {
+      /* Transaction start failed!? Very bad error, log and retry */
+      GNUNET_break (0);
+      continue;
+    }
+    res = TMH_plugin->get_denomination_info (TMH_plugin->cls,
+                                             session,
+                                             &dki->denom_pub,
+                                             NULL);
+    if (GNUNET_SYSERR == res)
+    {
+      /* Fetch failed!? Very bad error, log and retry */
+      GNUNET_break (0);
+      TMH_plugin->rollback (TMH_plugin->cls,
+                            session);
+      continue;
+    }
+    if (GNUNET_OK == res)
+    {
+      /* Record exists, we're good, just exit */
+      TMH_plugin->rollback (TMH_plugin->cls,
+                            session);
+      break;
+    }
+    res = TMH_plugin->insert_denomination_info (TMH_plugin->cls,
+                                                session,
+                                                &dki->denom_pub,
+                                                &dki->issue);
+    if (GNUNET_OK != res)
+    {
+      /* Insert failed!? Very bad error, log and retry */
+      GNUNET_break (0);
+      TMH_plugin->rollback (TMH_plugin->cls,
+                            session);
+      continue;
+    }
+    res = TMH_plugin->commit (TMH_plugin->cls,
+                              session);
+    /* If commit succeeded, we're done, otherwise we retry; this
+       time without logging, as theroetically commits can fail
+       in a transactional DB due to concurrent activities that
+       cannot be reconciled. This should be rare for DKIs, but
+       as it is possible we just retry until we succeed. */
+  }
+
+  d2 = GNUNET_new (struct TALER_EXCHANGEDB_DenominationKeyIssueInformation);
+  d2->issue = dki->issue;
+  d2->denom_priv.rsa_private_key
+    = GNUNET_CRYPTO_rsa_private_key_dup (dki->denom_priv.rsa_private_key);
+  d2->denom_pub.rsa_public_key
+    = GNUNET_CRYPTO_rsa_public_key_dup (dki->denom_pub.rsa_public_key);
+  res = GNUNET_CONTAINER_multihashmap_put (ctx->denomkey_map,
+                                           &denom_key_hash,
+                                           d2,
+                                           GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
+  if (GNUNET_OK != res)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                "Duplicate denomination key `%s'\n",
+                alias);
+    GNUNET_CRYPTO_rsa_private_key_free (d2->denom_priv.rsa_private_key);
+    GNUNET_CRYPTO_rsa_public_key_free (d2->denom_pub.rsa_public_key);
+    GNUNET_free (d2);
+    return GNUNET_OK;
+  }
+  json_array_append_new (ctx->denom_keys_array,
+                         denom_key_issue_to_json (&dki->denom_pub,
+                                                  &dki->issue));
+  return GNUNET_OK;
+}
+
+
+/**
+ * Convert the public part of a sign key issue to a JSON object.
+ *
+ * @param ski the sign key issue
+ * @return a JSON object describing the sign key issue (public part)
+ */
+static json_t *
+sign_key_issue_to_json (const struct TALER_ExchangeSigningKeyValidityPS *ski)
+{
+  return
+    json_pack ("{s:o, s:o, s:o, s:o, s:o, s:o}",
+               "stamp_start",
+               TALER_json_from_abs (GNUNET_TIME_absolute_ntoh (ski->start)),
+               "stamp_expire",
+               TALER_json_from_abs (GNUNET_TIME_absolute_ntoh (ski->expire)),
+               "stamp_end",
+               TALER_json_from_abs (GNUNET_TIME_absolute_ntoh (ski->end)),
+               "master_pub",
+               TALER_json_from_data (&ski->master_public_key,
+                                     sizeof (struct TALER_MasterPublicKeyP)),
+               "master_sig",
+               TALER_json_from_data (&ski->signature,
+                                     sizeof (struct TALER_MasterSignatureP)),
+               "key",
+               TALER_json_from_data (&ski->signkey_pub,
+                                     sizeof (struct TALER_ExchangePublicKeyP)));
+}
+
+
+/**
+ * Iterator for sign keys.
+ *
+ * @param cls closure with the `struct TMH_KS_StateHandle *`
+ * @param filename name of the file the key came from
+ * @param ski the sign key issue
+ * @return #GNUNET_OK to continue to iterate,
+ *  #GNUNET_NO to stop iteration with no error,
+ *  #GNUNET_SYSERR to abort iteration with error!
+ */
+static int
+reload_keys_sign_iter (void *cls,
+                       const char *filename,
+                       const struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP *ski)
+{
+  struct TMH_KS_StateHandle *ctx = cls;
+  struct GNUNET_TIME_Absolute now;
+  struct GNUNET_TIME_Absolute horizon;
+
+  horizon = GNUNET_TIME_relative_to_absolute (TALER_EXCHANGE_conf_duration_provide ());
+  if (GNUNET_TIME_absolute_ntoh (ski->issue.start).abs_value_us >
+      horizon.abs_value_us)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "Skipping future signing key `%s'\n",
+                filename);
+    return GNUNET_OK;
+  }
+  now = GNUNET_TIME_absolute_get ();
+  if (GNUNET_TIME_absolute_ntoh (ski->issue.expire).abs_value_us <
+      now.abs_value_us)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "Skipping expired signing key `%s'\n",
+                filename);
+    return GNUNET_OK;
+  }
+
+  /* The signkey is valid at this time, check if it's more recent than
+     what we have so far! */
+  if ( (GNUNET_TIME_absolute_ntoh (ctx->current_sign_key_issue.issue.start).abs_value_us <
+        GNUNET_TIME_absolute_ntoh (ski->issue.start).abs_value_us) &&
+       (GNUNET_TIME_absolute_ntoh (ski->issue.start).abs_value_us <
+        now.abs_value_us) )
+  {
+    /* We use the most recent one, if it is valid now (not just in the near future) */
+    ctx->current_sign_key_issue = *ski;
+  }
+  json_array_append_new (ctx->sign_keys_array,
+                         sign_key_issue_to_json (&ski->issue));
+
+  return GNUNET_OK;
+}
+
+
+/**
+ * Convert information from an auditor to a JSON object.
+ *
+ * @param apub the auditor's public key
+ * @param dki_len length of @a dki and @a asigs arrays
+ * @param asigs the auditor's signatures
+ * @param dki array of denomination coin data signed by the auditor
+ * @return a JSON object describing the auditor information and signature
+ */
+static json_t *
+auditor_to_json (const struct TALER_AuditorPublicKeyP *apub,
+                 unsigned int dki_len,
+                 const struct TALER_AuditorSignatureP **asigs,
+                 const struct TALER_DenominationKeyValidityPS **dki)
+{
+  unsigned int i;
+  json_t *ja;
+
+  ja = json_array ();
+  for (i=0;i<dki_len;i++)
+    json_array_append_new (ja,
+                           json_pack ("{s:o, s:o}",
+                                      "denom_pub_h",
+                                      TALER_json_from_data (&dki[i]->denom_hash,
+                                                            sizeof (struct GNUNET_HashCode)),
+                                      "auditor_sig",
+                                      TALER_json_from_data (asigs[i],
+                                                            sizeof (struct TALER_AuditorSignatureP))));
+  return
+    json_pack ("{s:o, s:o}",
+               "denomination_keys", ja,
+               "auditor_pub",
+               TALER_json_from_data (apub,
+                                     sizeof (struct TALER_AuditorPublicKeyP)));
+}
+
+
+/**
+ * @brief Iterator called with auditor information.
+ * Check that the @a mpub actually matches this exchange, and then
+ * add the auditor information to our /keys response (if it is
+ * (still) applicable).
+ *
+ * @param cls closure with the `struct TMH_KS_StateHandle *`
+ * @param apub the auditor's public key
+ * @param mpub the exchange's public key (as expected by the auditor)
+ * @param dki_len length of @a dki and @a asigs
+ * @param asigs array with the auditor's signatures, of length @a dki_len
+ * @param dki array of denomination coin data signed by the auditor
+ * @return #GNUNET_OK to continue to iterate,
+ *  #GNUNET_NO to stop iteration with no error,
+ *  #GNUNET_SYSERR to abort iteration with error!
+ */
+static int
+reload_auditor_iter (void *cls,
+                     const struct TALER_AuditorPublicKeyP *apub,
+                     const struct TALER_MasterPublicKeyP *mpub,
+                     unsigned int dki_len,
+                     const struct TALER_AuditorSignatureP *asigs,
+                     const struct TALER_DenominationKeyValidityPS *dki)
+{
+  struct TMH_KS_StateHandle *ctx = cls;
+  unsigned int i;
+  unsigned int keep;
+  const struct TALER_AuditorSignatureP *kept_asigs[dki_len];
+  const struct TALER_DenominationKeyValidityPS *kept_dkis[dki_len];
+
+  /* Check if the signature is at least for this exchange. */
+  if (0 != memcmp (&mpub->eddsa_pub,
+                   &TMH_master_public_key,
+                   sizeof (struct GNUNET_CRYPTO_EddsaPublicKey)))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                "Auditing information provided for a different exchange, ignored\n");
+    return GNUNET_OK;
+  }
+  /* Filter the auditor information for those for which the
+     keys actually match the denomination keys that are active right now */
+  keep = 0;
+  for (i=0;i<dki_len;i++)
+  {
+    if (GNUNET_YES ==
+        GNUNET_CONTAINER_multihashmap_contains (ctx->denomkey_map,
+                                                &dki[i].denom_hash))
+    {
+      kept_asigs[keep] = &asigs[i];
+      kept_dkis[keep] = &dki[i];
+      keep++;
+    }
+  }
+  /* add auditor information to our /keys response */
+  json_array_append_new (ctx->auditors_array,
+                         auditor_to_json (apub,
+                                          keep,
+                                          kept_asigs,
+                                          kept_dkis));
+  return GNUNET_OK;
+}
+
+
+/**
+ * Iterator for freeing denomination keys.
+ *
+ * @param cls closure with the `struct TMH_KS_StateHandle`
+ * @param key key for the denomination key
+ * @param value coin details
+ * @return #GNUNET_OK to continue to iterate,
+ *  #GNUNET_NO to stop iteration with no error,
+ *  #GNUNET_SYSERR to abort iteration with error!
+ */
+static int
+free_denom_key (void *cls,
+                const struct GNUNET_HashCode *key,
+                void *value)
+{
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki = value;
+
+  GNUNET_CRYPTO_rsa_private_key_free (dki->denom_priv.rsa_private_key);
+  GNUNET_CRYPTO_rsa_public_key_free (dki->denom_pub.rsa_public_key);
+  GNUNET_free (dki);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Release key state, free if necessary (if reference count gets to zero).
+ * Internal method used when the mutex is already held.
+ *
+ * @param key_state the key state to release
+ */
+static void
+ks_release_ (struct TMH_KS_StateHandle *key_state)
+{
+  GNUNET_assert (0 < key_state->refcnt);
+  key_state->refcnt--;
+  if (0 == key_state->refcnt)
+  {
+    if (NULL != key_state->denom_keys_array)
+    {
+      json_decref (key_state->denom_keys_array);
+      key_state->denom_keys_array = NULL;
+    }
+    if (NULL != key_state->sign_keys_array)
+    {
+      json_decref (key_state->sign_keys_array);
+      key_state->sign_keys_array = NULL;
+    }
+    if (NULL != key_state->denomkey_map)
+    {
+      GNUNET_CONTAINER_multihashmap_iterate (key_state->denomkey_map,
+                                             &free_denom_key,
+                                             key_state);
+      GNUNET_CONTAINER_multihashmap_destroy (key_state->denomkey_map);
+      key_state->denomkey_map = NULL;
+    }
+    GNUNET_free_non_null (key_state->keys_json);
+    GNUNET_free (key_state);
+  }
+}
+
+
+/**
+ * Release key state, free if necessary (if reference count gets to zero).
+ *
+ * @param location name of the function in which the lock is acquired
+ * @param key_state the key state to release
+ */
+void
+TMH_KS_release_ (const char *location,
+                 struct TMH_KS_StateHandle *key_state)
+{
+  GNUNET_assert (0 == pthread_mutex_lock (&internal_key_state_mutex));
+  ks_release_ (key_state);
+  GNUNET_assert (0 == pthread_mutex_unlock (&internal_key_state_mutex));
+}
+
+
+/**
+ * Acquire the key state of the exchange.  Updates keys if necessary.
+ * For every call to #TMH_KS_acquire(), a matching call
+ * to #TMH_KS_release() must be made.
+ *
+ * @param location name of the function in which the lock is acquired
+ * @return the key state
+ */
+struct TMH_KS_StateHandle *
+TMH_KS_acquire_ (const char *location)
+{
+  struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get ();
+  struct TMH_KS_StateHandle *key_state;
+  json_t *keys;
+  struct TALER_ExchangeKeySetPS ks;
+  struct TALER_ExchangeSignatureP sig;
+
+  GNUNET_assert (0 == pthread_mutex_lock (&internal_key_state_mutex));
+  if ( (NULL != internal_key_state) &&
+       (internal_key_state->next_reload.abs_value_us <= now.abs_value_us) )
+  {
+    ks_release_ (internal_key_state);
+    internal_key_state = NULL;
+  }
+  if (NULL == internal_key_state)
+  {
+    key_state = GNUNET_new (struct TMH_KS_StateHandle);
+    key_state->hash_context = GNUNET_CRYPTO_hash_context_start ();
+
+
+    key_state->denom_keys_array = json_array ();
+    GNUNET_assert (NULL != key_state->denom_keys_array);
+
+    key_state->sign_keys_array = json_array ();
+    GNUNET_assert (NULL != key_state->sign_keys_array);
+
+    key_state->auditors_array = json_array ();
+    GNUNET_assert (NULL != key_state->auditors_array);
+
+    key_state->denomkey_map = GNUNET_CONTAINER_multihashmap_create (32,
+                                                                    GNUNET_NO);
+    key_state->reload_time = GNUNET_TIME_absolute_get ();
+    TALER_round_abs_time (&key_state->reload_time);
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "Loading keys from `%s'\n",
+                TMH_exchange_directory);
+    TALER_EXCHANGEDB_denomination_keys_iterate (TMH_exchange_directory,
+                                            &reload_keys_denom_iter,
+                                            key_state);
+    TALER_EXCHANGEDB_signing_keys_iterate (TMH_exchange_directory,
+                                       &reload_keys_sign_iter,
+                                       key_state);
+    TALER_EXCHANGEDB_auditor_iterate (TMH_exchange_directory,
+                                  &reload_auditor_iter,
+                                  key_state);
+    ks.purpose.size = htonl (sizeof (ks));
+    ks.purpose.purpose = htonl (TALER_SIGNATURE_EXCHANGE_KEY_SET);
+    ks.list_issue_date = GNUNET_TIME_absolute_hton (key_state->reload_time);
+    GNUNET_CRYPTO_hash_context_finish (key_state->hash_context,
+                                       &ks.hc);
+    key_state->hash_context = NULL;
+    GNUNET_assert (GNUNET_OK ==
+                   GNUNET_CRYPTO_eddsa_sign (&key_state->current_sign_key_issue.signkey_priv.eddsa_priv,
+                                             &ks.purpose,
+                                             &sig.eddsa_signature));
+    key_state->next_reload = GNUNET_TIME_absolute_ntoh (key_state->current_sign_key_issue.issue.expire);
+    if (0 == key_state->next_reload.abs_value_us)
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "No valid signing key found!\n");
+
+    keys = json_pack ("{s:o, s:o, s:o, s:o, s:o, s:o, s:o}",
+                      "master_public_key",
+                      TALER_json_from_data (&TMH_master_public_key,
+                                            sizeof (struct GNUNET_CRYPTO_EddsaPublicKey)),
+                      "signkeys", key_state->sign_keys_array,
+                      "denoms", key_state->denom_keys_array,
+                      "auditors", key_state->auditors_array,
+                      "list_issue_date", TALER_json_from_abs (key_state->reload_time),
+                      "eddsa_pub", TALER_json_from_data (&key_state->current_sign_key_issue.issue.signkey_pub,
+                                                         sizeof (struct TALER_ExchangePublicKeyP)),
+                      "eddsa_sig", TALER_json_from_data (&sig,
+                                                         sizeof (struct TALER_ExchangeSignatureP)));
+    key_state->auditors_array = NULL;
+    key_state->sign_keys_array = NULL;
+    key_state->denom_keys_array = NULL;
+    key_state->keys_json = json_dumps (keys,
+                                       JSON_INDENT (2));
+    json_decref (keys);
+    internal_key_state = key_state;
+  }
+  key_state = internal_key_state;
+  key_state->refcnt++;
+  GNUNET_assert (0 == pthread_mutex_unlock (&internal_key_state_mutex));
+
+  return key_state;
+}
+
+
+/**
+ * Look up the issue for a denom public key.
+ *
+ * @param key_state state to look in
+ * @param denom_pub denomination public key
+ * @param use purpose for which the key is being located
+ * @return the denomination key issue,
+ *         or NULL if denom_pub could not be found
+ */
+struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *
+TMH_KS_denomination_key_lookup (const struct TMH_KS_StateHandle *key_state,
+                                const struct TALER_DenominationPublicKey *denom_pub,
+				enum TMH_KS_DenominationKeyUse use)
+{
+  struct GNUNET_HashCode hc;
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki;
+  struct GNUNET_TIME_Absolute now;
+
+  GNUNET_CRYPTO_rsa_public_key_hash (denom_pub->rsa_public_key,
+                                     &hc);
+  dki = GNUNET_CONTAINER_multihashmap_get (key_state->denomkey_map,
+					   &hc);
+  if (NULL == dki)
+    return NULL;
+  now = GNUNET_TIME_absolute_get ();
+  if (now.abs_value_us <
+      GNUNET_TIME_absolute_ntoh (dki->issue.properties.start).abs_value_us)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+		"Not returning DKI for %s, as start time is in the future\n",
+		GNUNET_h2s (&hc));
+    return NULL;
+  }
+  now = GNUNET_TIME_absolute_get ();
+  switch (use)
+  {
+  case TMH_KS_DKU_WITHDRAW:
+    if (now.abs_value_us >
+	GNUNET_TIME_absolute_ntoh (dki->issue.properties.expire_withdraw).abs_value_us)
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+		  "Not returning DKI for %s, as time to create coins has passed\n",
+		  GNUNET_h2s (&hc));
+      return NULL;
+    }
+    break;
+  case TMH_KS_DKU_DEPOSIT:
+    if (now.abs_value_us >
+	GNUNET_TIME_absolute_ntoh (dki->issue.properties.expire_spend).abs_value_us)
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+		  "Not returning DKI for %s, as time to spend coin has passed\n",
+		  GNUNET_h2s (&hc));
+      return NULL;
+    }
+    break;
+  }
+  return dki;
+}
+
+
+/**
+ * Handle a signal, writing relevant signal numbers to the pipe.
+ *
+ * @param signal_number the signal number
+ */
+static void
+handle_signal (int signal_number)
+{
+  ssize_t res;
+  char c = signal_number;
+
+  res = write (reload_pipe[1],
+               &c,
+               1);
+  if ( (res < 0) &&
+       (EINTR != errno) )
+  {
+    GNUNET_break (0);
+    return;
+  }
+  if (0 == res)
+  {
+    GNUNET_break (0);
+    return;
+  }
+}
+
+
+/**
+ * Call #handle_signal() to pass the received signal via
+ * the control pipe.
+ */
+static void
+handle_sigusr1 ()
+{
+  handle_signal (SIGUSR1);
+}
+
+
+/**
+ * Call #handle_signal() to pass the received signal via
+ * the control pipe.
+ */
+static void
+handle_sigint ()
+{
+  handle_signal (SIGINT);
+}
+
+
+/**
+ * Call #handle_signal() to pass the received signal via
+ * the control pipe.
+ */
+static void
+handle_sigterm ()
+{
+  handle_signal (SIGTERM);
+}
+
+
+/**
+ * Call #handle_signal() to pass the received signal via
+ * the control pipe.
+ */
+static void
+handle_sighup ()
+{
+  handle_signal (SIGHUP);
+}
+
+
+/**
+ * Call #handle_signal() to pass the received signal via
+ * the control pipe.
+ */
+static void
+handle_sigchld ()
+{
+  handle_signal (SIGCHLD);
+}
+
+
+/**
+ * Read signals from a pipe in a loop, and reload keys from disk if
+ * SIGUSR1 is received, terminate if SIGTERM/SIGINT is received, and
+ * restart if SIGHUP is received.
+ *
+ * @return #GNUNET_SYSERR on errors,
+ *         #GNUNET_OK to terminate normally
+ *         #GNUNET_NO to restart an update version of the binary
+ */
+int
+TMH_KS_loop (void)
+{
+  struct GNUNET_SIGNAL_Context *sigusr1;
+  struct GNUNET_SIGNAL_Context *sigterm;
+  struct GNUNET_SIGNAL_Context *sigint;
+  struct GNUNET_SIGNAL_Context *sighup;
+  struct GNUNET_SIGNAL_Context *sigchld;
+  int ret;
+
+  if (0 != pipe (reload_pipe))
+  {
+    fprintf (stderr,
+             "Failed to create pipe.\n");
+    return GNUNET_SYSERR;
+  }
+  sigusr1 = GNUNET_SIGNAL_handler_install (SIGUSR1,
+                                           &handle_sigusr1);
+  sigterm = GNUNET_SIGNAL_handler_install (SIGTERM,
+                                           &handle_sigterm);
+  sigint = GNUNET_SIGNAL_handler_install (SIGINT,
+                                          &handle_sigint);
+  sighup = GNUNET_SIGNAL_handler_install (SIGHUP,
+                                          &handle_sighup);
+  sigchld = GNUNET_SIGNAL_handler_install (SIGCHLD,
+                                           &handle_sigchld);
+
+  ret = 0;
+  while (0 == ret)
+  {
+    char c;
+    ssize_t res;
+
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "(re-)loading keys\n");
+    if (NULL != internal_key_state)
+    {
+      TMH_KS_release (internal_key_state);
+      internal_key_state = NULL;
+    }
+    /* This will re-initialize 'internal_key_state' with
+       an initial refcnt of 1 */
+    (void) TMH_KS_acquire ();
+
+read_again:
+    errno = 0;
+    res = read (reload_pipe[0],
+                &c,
+                1);
+    if ((res < 0) && (EINTR != errno))
+    {
+      GNUNET_break (0);
+      ret = GNUNET_SYSERR;
+      break;
+    }
+    if (EINTR == errno)
+      goto read_again;
+    switch (c)
+    {
+    case SIGUSR1:
+      /* reload internal key state, we do this in the loop */
+      break;
+    case SIGTERM:
+    case SIGINT:
+      /* terminate */
+      ret = GNUNET_OK;
+      break;
+    case SIGHUP:
+      /* restart updated binary */
+      ret = GNUNET_NO;
+      break;
+#if HAVE_DEVELOPER
+    case SIGCHLD:
+      /* running in test-mode, test finished, terminate */
+      ret = GNUNET_OK;
+      break;
+#endif
+    default:
+      /* unexpected character */
+      GNUNET_break (0);
+      break;
+    }
+  }
+  if (NULL != internal_key_state)
+  {
+    TMH_KS_release (internal_key_state);
+    internal_key_state = NULL;
+  }
+  GNUNET_SIGNAL_handler_uninstall (sigusr1);
+  GNUNET_SIGNAL_handler_uninstall (sigterm);
+  GNUNET_SIGNAL_handler_uninstall (sigint);
+  GNUNET_SIGNAL_handler_uninstall (sighup);
+  GNUNET_SIGNAL_handler_uninstall (sigchld);
+  return ret;
+}
+
+
+/**
+ * Sign the message in @a purpose with the exchange's signing key.
+ *
+ * @param purpose the message to sign
+ * @param[out] pub set to the current public signing key of the exchange
+ * @param[out] sig signature over purpose using current signing key
+ */
+void
+TMH_KS_sign (const struct GNUNET_CRYPTO_EccSignaturePurpose *purpose,
+             struct TALER_ExchangePublicKeyP *pub,
+             struct TALER_ExchangeSignatureP *sig)
+
+{
+  struct TMH_KS_StateHandle *key_state;
+
+  key_state = TMH_KS_acquire ();
+  *pub = key_state->current_sign_key_issue.issue.signkey_pub;
+  GNUNET_assert (GNUNET_OK ==
+                 GNUNET_CRYPTO_eddsa_sign (&key_state->current_sign_key_issue.signkey_priv.eddsa_priv,
+                                           purpose,
+                                           &sig->eddsa_signature));
+  TMH_KS_release (key_state);
+}
+
+
+/**
+ * Function to call to handle the request by sending
+ * back static data from the @a rh.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_KS_handler_keys (struct TMH_RequestHandler *rh,
+                     struct MHD_Connection *connection,
+                     void **connection_cls,
+                     const char *upload_data,
+                     size_t *upload_data_size)
+{
+  struct TMH_KS_StateHandle *key_state;
+  struct MHD_Response *response;
+  int ret;
+
+  key_state = TMH_KS_acquire ();
+  response = MHD_create_response_from_buffer (strlen (key_state->keys_json),
+                                              key_state->keys_json,
+                                              MHD_RESPMEM_MUST_COPY);
+  TMH_KS_release (key_state);
+  if (NULL == response)
+  {
+    GNUNET_break (0);
+    return MHD_NO;
+  }
+  TMH_RESPONSE_add_global_headers (response);
+  (void) MHD_add_response_header (response,
+                                  "Content-Type",
+                                  rh->mime_type);
+  ret = MHD_queue_response (connection,
+                            rh->response_code,
+                            response);
+  MHD_destroy_response (response);
+  return ret;
+}
+
+
+/* end of taler-exchange-httpd_keystate.c */
diff --git a/src/exchange/taler-exchange-httpd_keystate.h b/src/exchange/taler-exchange-httpd_keystate.h
new file mode 100644
index 000000000..56151a878
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_keystate.h
@@ -0,0 +1,163 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange/taler-exchange-httpd_keystate.h
+ * @brief management of our private signing keys (denomination keys)
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#ifndef TALER_EXCHANGE_HTTPD_KEYSTATE_H
+#define TALER_EXCHANGE_HTTPD_KEYSTATE_H
+
+#include <gnunet/gnunet_util_lib.h>
+#include <microhttpd.h>
+#include "taler-exchange-httpd.h"
+#include "taler_exchangedb_lib.h"
+
+
+/**
+ * Snapshot of the (coin and signing)
+ * keys (including private keys) of the exchange.
+ */
+struct TMH_KS_StateHandle;
+
+
+/**
+ * Acquire the key state of the exchange.  Updates keys if necessary.
+ * For every call to #TMH_KS_acquire(), a matching call
+ * to #TMH_KS_release() must be made.
+ *
+ * @param location name of the function in which the lock is acquired
+ * @return the key state
+ */
+struct TMH_KS_StateHandle *
+TMH_KS_acquire_ (const char *location);
+
+
+/**
+ * Release key state, free if necessary (if reference count gets to zero).
+ *
+ * @param location name of the function in which the lock is acquired
+ * @param key_state the key state to release
+ */
+void
+TMH_KS_release_ (const char *location,
+                 struct TMH_KS_StateHandle *key_state);
+
+
+/**
+ * Acquire the key state of the exchange.  Updates keys if necessary.
+ * For every call to #TMH_KS_acquire(), a matching call
+ * to #TMH_KS_release() must be made.
+ *
+ * @return the key state
+ */
+#define TMH_KS_acquire(void) TMH_KS_acquire_(__FUNCTION__)
+
+
+/**
+ * Release key state, free if necessary (if reference count gets to zero).
+ *
+ * @param key_state the key state to release
+ */
+#define TMH_KS_release(key_state) TMH_KS_release_ (__FUNCTION__, key_state)
+
+
+/**
+ * Denomination key lookups can be for signing of fresh coins
+ * or to validate signatures on existing coins.  As the validity
+ * periods for a key differ, the caller must specify which
+ * use is relevant for the current operation.
+ */
+enum TMH_KS_DenominationKeyUse {
+
+  /**
+   * The key is to be used for a /reserve/withdraw or /refresh (exchange)
+   * operation.
+   */
+  TMH_KS_DKU_WITHDRAW,
+
+  /**
+   * The key is to be usd for a /deposit or /refresh (melt) operation.
+   */
+  TMH_KS_DKU_DEPOSIT
+
+};
+
+
+/**
+ * Look up the issue for a denom public key.  Note that the result
+ * is only valid while the @a key_state is not released!
+ *
+ * @param key_state state to look in
+ * @param denom_pub denomination public key
+ * @param use purpose for which the key is being located
+ * @return the denomination key issue,
+ *         or NULL if denom_pub could not be found (or is not valid at this time for the given @a use)
+ */
+struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *
+TMH_KS_denomination_key_lookup (const struct TMH_KS_StateHandle *key_state,
+                                const struct TALER_DenominationPublicKey *denom_pub,
+				enum TMH_KS_DenominationKeyUse use);
+
+
+/**
+ * Read signals from a pipe in a loop, and reload keys from disk if
+ * SIGUSR1 is received, terminate if SIGTERM/SIGINT is received, and
+ * restart if SIGHUP is received.
+ *
+ * @return #GNUNET_SYSERR on errors,
+ *         #GNUNET_OK to terminate normally
+ *         #GNUNET_NO to restart an update version of the binary
+ */
+int
+TMH_KS_loop (void);
+
+
+/**
+ * Sign the message in @a purpose with the exchange's signing
+ * key.
+ *
+ * @param purpose the message to sign
+ * @param[out] pub set to the current public signing key of the exchange
+ * @param[out] sig signature over purpose using current signing key
+ */
+void
+TMH_KS_sign (const struct GNUNET_CRYPTO_EccSignaturePurpose *purpose,
+             struct TALER_ExchangePublicKeyP *pub,
+             struct TALER_ExchangeSignatureP *sig);
+
+
+/**
+ * Handle a "/keys" request
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_KS_handler_keys (struct TMH_RequestHandler *rh,
+                     struct MHD_Connection *connection,
+                     void **connection_cls,
+                     const char *upload_data,
+                     size_t *upload_data_size);
+
+
+#endif
diff --git a/src/exchange/taler-exchange-httpd_mhd.c b/src/exchange/taler-exchange-httpd_mhd.c
new file mode 100644
index 000000000..b7ad437aa
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_mhd.c
@@ -0,0 +1,152 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+
+/**
+ * @file taler-exchange-httpd_mhd.c
+ * @brief helpers for MHD interaction; these are TALER_EXCHANGE_handler_ functions
+ *        that generate simple MHD replies that do not require any real operations
+ *        to be performed (error handling, static pages, etc.)
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <gnunet/gnunet_util_lib.h>
+#include <jansson.h>
+#include <microhttpd.h>
+#include <pthread.h>
+#include "taler-exchange-httpd_responses.h"
+#include "taler-exchange-httpd.h"
+#include "taler-exchange-httpd_mhd.h"
+
+/**
+ * Function to call to handle the request by sending
+ * back static data from the @a rh.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_MHD_handler_static_response (struct TMH_RequestHandler *rh,
+                                    struct MHD_Connection *connection,
+                                    void **connection_cls,
+                                    const char *upload_data,
+                                    size_t *upload_data_size)
+{
+  struct MHD_Response *response;
+  int ret;
+
+  if (0 == rh->data_size)
+    rh->data_size = strlen ((const char *) rh->data);
+  response = MHD_create_response_from_buffer (rh->data_size,
+                                              (void *) rh->data,
+                                              MHD_RESPMEM_PERSISTENT);
+  if (NULL == response)
+  {
+    GNUNET_break (0);
+    return MHD_NO;
+  }
+  TMH_RESPONSE_add_global_headers (response);
+  if (NULL != rh->mime_type)
+    (void) MHD_add_response_header (response,
+                                    MHD_HTTP_HEADER_CONTENT_TYPE,
+                                    rh->mime_type);
+  ret = MHD_queue_response (connection,
+                            rh->response_code,
+                            response);
+  MHD_destroy_response (response);
+  return ret;
+}
+
+
+/**
+ * Function to call to handle the request by sending
+ * back a redirect to the AGPL source code.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_MHD_handler_agpl_redirect (struct TMH_RequestHandler *rh,
+                                  struct MHD_Connection *connection,
+                                  void **connection_cls,
+                                  const char *upload_data,
+                                  size_t *upload_data_size)
+{
+  const char *agpl =
+    "This server is licensed under the Affero GPL. You will now be redirected to the source code.";
+  struct MHD_Response *response;
+  int ret;
+
+  response = MHD_create_response_from_buffer (strlen (agpl),
+                                              (void *) agpl,
+                                              MHD_RESPMEM_PERSISTENT);
+  if (NULL == response)
+  {
+    GNUNET_break (0);
+    return MHD_NO;
+  }
+  TMH_RESPONSE_add_global_headers (response);
+  if (NULL != rh->mime_type)
+    (void) MHD_add_response_header (response,
+                                    MHD_HTTP_HEADER_CONTENT_TYPE,
+                                    rh->mime_type);
+  MHD_add_response_header (response,
+                           MHD_HTTP_HEADER_LOCATION,
+                           "http://www.git.taler.net/?p=exchange.git");
+  ret = MHD_queue_response (connection,
+                            rh->response_code,
+                            response);
+  MHD_destroy_response (response);
+  return ret;
+}
+
+
+/**
+ * Function to call to handle the request by building a JSON
+ * reply with an error message from @a rh.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_MHD_handler_send_json_pack_error (struct TMH_RequestHandler *rh,
+                                         struct MHD_Connection *connection,
+                                         void **connection_cls,
+                                         const char *upload_data,
+                                         size_t *upload_data_size)
+{
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                     rh->response_code,
+                                     "{s:s}",
+                                     "error",
+                                     rh->data);
+}
+
+
+/* end of taler-exchange-httpd_mhd.c */
diff --git a/src/exchange/taler-exchange-httpd_mhd.h b/src/exchange/taler-exchange-httpd_mhd.h
new file mode 100644
index 000000000..3e825c559
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_mhd.h
@@ -0,0 +1,111 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+
+/**
+ * @file taler-exchange-httpd_mhd.h
+ * @brief helpers for MHD interaction, used to generate simple responses
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#ifndef TALER_EXCHANGE_HTTPD_MHD_H
+#define TALER_EXCHANGE_HTTPD_MHD_H
+#include <gnunet/gnunet_util_lib.h>
+#include <microhttpd.h>
+#include "taler-exchange-httpd.h"
+
+
+/**
+ * Function to call to handle the request by sending
+ * back static data from the @a rh.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_MHD_handler_static_response (struct TMH_RequestHandler *rh,
+                                 struct MHD_Connection *connection,
+                                 void **connection_cls,
+                                 const char *upload_data,
+                                 size_t *upload_data_size);
+
+
+/**
+ * Function to call to handle the request by sending
+ * back a redirect to the AGPL source code.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_MHD_handler_agpl_redirect (struct TMH_RequestHandler *rh,
+                               struct MHD_Connection *connection,
+                               void **connection_cls,
+                               const char *upload_data,
+                               size_t *upload_data_size);
+
+
+/**
+ * Function to call to handle the request by building a JSON
+ * reply from varargs.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param response_code HTTP response code to use
+ * @param do_cache can the response be cached? (0: no, 1: yes)
+ * @param fmt format string for pack
+ * @param ... varargs
+ * @return MHD result code
+ */
+int
+TMH_MHD_helper_send_json_pack (struct TMH_RequestHandler *rh,
+                               struct MHD_Connection *connection,
+                               void *connection_cls,
+                               int response_code,
+                               int do_cache,
+                               const char *fmt,
+                               ...);
+
+
+/**
+ * Function to call to handle the request by building a JSON
+ * reply with an error message from @a rh.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_MHD_handler_send_json_pack_error (struct TMH_RequestHandler *rh,
+                                      struct MHD_Connection *connection,
+                                      void **connection_cls,
+                                      const char *upload_data,
+                                      size_t *upload_data_size);
+
+
+#endif
diff --git a/src/exchange/taler-exchange-httpd_parsing.c b/src/exchange/taler-exchange-httpd_parsing.c
new file mode 100644
index 000000000..25539aeb7
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_parsing.c
@@ -0,0 +1,1137 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+
+/**
+ * @file taler-exchange-httpd_parsing.c
+ * @brief functions to parse incoming requests (MHD arguments and JSON snippets)
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+
+#include "platform.h"
+#include <gnunet/gnunet_util_lib.h>
+#include "taler-exchange-httpd_parsing.h"
+#include "taler-exchange-httpd_responses.h"
+
+
+/**
+ * Initial size for POST request buffer.
+ */
+#define REQUEST_BUFFER_INITIAL (2*1024)
+
+/**
+ * Maximum POST request size.
+ */
+#define REQUEST_BUFFER_MAX (1024*1024)
+
+
+/**
+ * Buffer for POST requests.
+ */
+struct Buffer
+{
+  /**
+   * Allocated memory
+   */
+  char *data;
+
+  /**
+   * Number of valid bytes in buffer.
+   */
+  size_t fill;
+
+  /**
+   * Number of allocated bytes in buffer.
+   */
+  size_t alloc;
+};
+
+
+/**
+ * Initialize a buffer.
+ *
+ * @param buf the buffer to initialize
+ * @param data the initial data
+ * @param data_size size of the initial data
+ * @param alloc_size size of the buffer
+ * @param max_size maximum size that the buffer can grow to
+ * @return a GNUnet result code
+ */
+static int
+buffer_init (struct Buffer *buf,
+             const void *data,
+             size_t data_size,
+             size_t alloc_size,
+             size_t max_size)
+{
+  if (data_size > max_size || alloc_size > max_size)
+    return GNUNET_SYSERR;
+  if (data_size > alloc_size)
+    alloc_size = data_size;
+  buf->data = GNUNET_malloc (alloc_size);
+  memcpy (buf->data, data, data_size);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Free the data in a buffer.  Does *not* free
+ * the buffer object itself.
+ *
+ * @param buf buffer to de-initialize
+ */
+static void
+buffer_deinit (struct Buffer *buf)
+{
+  GNUNET_free (buf->data);
+  buf->data = NULL;
+}
+
+
+/**
+ * Append data to a buffer, growing the buffer if necessary.
+ *
+ * @param buf the buffer to append to
+ * @param data the data to append
+ * @param data_size the size of @a data
+ * @param max_size maximum size that the buffer can grow to
+ * @return #GNUNET_OK on success,
+ *         #GNUNET_NO if the buffer can't accomodate for the new data
+ */
+static int
+buffer_append (struct Buffer *buf,
+               const void *data,
+               size_t data_size,
+               size_t max_size)
+{
+  if (buf->fill + data_size > max_size)
+    return GNUNET_NO;
+  if (data_size + buf->fill > buf->alloc)
+  {
+    char *new_buf;
+    size_t new_size = buf->alloc;
+    while (new_size < buf->fill + data_size)
+      new_size += 2;
+    if (new_size > max_size)
+      return GNUNET_NO;
+    new_buf = GNUNET_malloc (new_size);
+    memcpy (new_buf, buf->data, buf->fill);
+    GNUNET_free (buf->data);
+    buf->data = new_buf;
+    buf->alloc = new_size;
+  }
+  memcpy (buf->data + buf->fill, data, data_size);
+  buf->fill += data_size;
+  return GNUNET_OK;
+}
+
+
+/**
+ * Release all memory allocated for the variable-size fields in
+ * the parser specification.
+ *
+ * @param spec specification to free
+ * @param spec_len number of items in @a spec to look at
+ */
+static void
+release_data (struct TMH_PARSE_FieldSpecification *spec,
+              unsigned int spec_len)
+{
+  unsigned int i;
+
+  for (i=0; i < spec_len; i++)
+  {
+    switch (spec[i].command)
+    {
+    case TMH_PARSE_JNC_FIELD:
+      GNUNET_break (0);
+      return;
+    case TMH_PARSE_JNC_INDEX:
+      GNUNET_break (0);
+      return;
+    case TMH_PARSE_JNC_RET_DATA:
+      break;
+    case TMH_PARSE_JNC_RET_DATA_VAR:
+      if (NULL != spec[i].destination)
+      {
+        GNUNET_free (* (void**) spec[i].destination);
+        *(void**) spec[i].destination = NULL;
+        *spec[i].destination_size_out = 0;
+      }
+      break;
+    case TMH_PARSE_JNC_RET_TYPED_JSON:
+      {
+        json_t *json;
+
+        json = *(json_t **) spec[i].destination;
+        if (NULL != json)
+        {
+          json_decref (json);
+          *(json_t**) spec[i].destination = NULL;
+        }
+      }
+      break;
+    case TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY:
+      {
+        struct TALER_DenominationPublicKey *pk;
+
+        pk = spec[i].destination;
+        if (NULL != pk->rsa_public_key)
+        {
+          GNUNET_CRYPTO_rsa_public_key_free (pk->rsa_public_key);
+          pk->rsa_public_key = NULL;
+        }
+      }
+      break;
+    case TMH_PARSE_JNC_RET_RSA_SIGNATURE:
+      {
+        struct TALER_DenominationSignature *sig;
+
+        sig = spec[i].destination;
+        if (NULL != sig->rsa_signature)
+        {
+          GNUNET_CRYPTO_rsa_signature_free (sig->rsa_signature);
+          sig->rsa_signature = NULL;
+        }
+      }
+      break;
+    case TMH_PARSE_JNC_RET_AMOUNT:
+      memset (spec[i].destination,
+              0,
+              sizeof (struct TALER_Amount));
+      break;
+    case TMH_PARSE_JNC_RET_TIME_ABSOLUTE:
+      break;
+    case TMH_PARSE_JNC_RET_UINT64:
+      break;
+    }
+  }
+}
+
+
+/**
+ * Process a POST request containing a JSON object.  This function
+ * realizes an MHD POST processor that will (incrementally) process
+ * JSON data uploaded to the HTTP server.  It will store the required
+ * state in the @a con_cls, which must be cleaned up using
+ * #TMH_PARSE_post_cleanup_callback().
+ *
+ * @param connection the MHD connection
+ * @param con_cls the closure (points to a `struct Buffer *`)
+ * @param upload_data the POST data
+ * @param upload_data_size number of bytes in @a upload_data
+ * @param json the JSON object for a completed request
+ * @return
+ *    #GNUNET_YES if json object was parsed or at least
+ *               may be parsed in the future (call again);
+ *               `*json` will be NULL if we need to be called again,
+ *                and non-NULL if we are done.
+ *    #GNUNET_NO is request incomplete or invalid
+ *               (error message was generated)
+ *    #GNUNET_SYSERR on internal error
+ *               (we could not even queue an error message,
+ *                close HTTP session with MHD_NO)
+ */
+int
+TMH_PARSE_post_json (struct MHD_Connection *connection,
+                     void **con_cls,
+                     const char *upload_data,
+                     size_t *upload_data_size,
+                     json_t **json)
+{
+  struct Buffer *r = *con_cls;
+
+  *json = NULL;
+  if (NULL == *con_cls)
+  {
+    /* We are seeing a fresh POST request. */
+    r = GNUNET_new (struct Buffer);
+    if (GNUNET_OK !=
+        buffer_init (r,
+                     upload_data,
+                     *upload_data_size,
+                     REQUEST_BUFFER_INITIAL,
+                     REQUEST_BUFFER_MAX))
+    {
+      *con_cls = NULL;
+      buffer_deinit (r);
+      GNUNET_free (r);
+      return (MHD_NO ==
+              TMH_RESPONSE_reply_internal_error (connection,
+                                                 "out of memory"))
+        ? GNUNET_SYSERR : GNUNET_NO;
+    }
+    /* everything OK, wait for more POST data */
+    *upload_data_size = 0;
+    *con_cls = r;
+    return GNUNET_YES;
+  }
+  if (0 != *upload_data_size)
+  {
+    /* We are seeing an old request with more data available. */
+
+    if (GNUNET_OK !=
+        buffer_append (r,
+                       upload_data,
+                       *upload_data_size,
+                       REQUEST_BUFFER_MAX))
+    {
+      /* Request too long */
+      *con_cls = NULL;
+      buffer_deinit (r);
+      GNUNET_free (r);
+      return (MHD_NO ==
+              TMH_RESPONSE_reply_request_too_large (connection))
+        ? GNUNET_SYSERR : GNUNET_NO;
+    }
+    /* everything OK, wait for more POST data */
+    *upload_data_size = 0;
+    return GNUNET_YES;
+  }
+
+  /* We have seen the whole request. */
+
+  *json = json_loadb (r->data,
+                      r->fill,
+                      0,
+                      NULL);
+  if (NULL == *json)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                "Failed to parse JSON request body\n");
+    return (MHD_YES ==
+            TMH_RESPONSE_reply_invalid_json (connection))
+      ? GNUNET_NO : GNUNET_SYSERR;
+  }
+  buffer_deinit (r);
+  GNUNET_free (r);
+  *con_cls = NULL;
+
+  return GNUNET_YES;
+}
+
+
+/**
+ * Function called whenever we are done with a request
+ * to clean up our state.
+ *
+ * @param con_cls value as it was left by
+ *        #TMH_PARSE_post_json(), to be cleaned up
+ */
+void
+TMH_PARSE_post_cleanup_callback (void *con_cls)
+{
+  struct Buffer *r = con_cls;
+
+  if (NULL != r)
+  {
+    buffer_deinit (r);
+    GNUNET_free (r);
+  }
+}
+
+
+/**
+ * Extract base32crockford encoded data from request.
+ *
+ * Queues an error response to the connection if the parameter is missing or
+ * invalid.
+ *
+ * @param connection the MHD connection
+ * @param param_name the name of the parameter with the key
+ * @param[out] out_data pointer to store the result
+ * @param out_size expected size of data
+ * @return
+ *   #GNUNET_YES if the the argument is present
+ *   #GNUNET_NO if the argument is absent or malformed
+ *   #GNUNET_SYSERR on internal error (error response could not be sent)
+ */
+int
+TMH_PARSE_mhd_request_arg_data (struct MHD_Connection *connection,
+                                const char *param_name,
+                                void *out_data,
+                                size_t out_size)
+{
+  const char *str;
+
+  str = MHD_lookup_connection_value (connection,
+                                     MHD_GET_ARGUMENT_KIND,
+                                     param_name);
+  if (NULL == str)
+  {
+    return (MHD_NO ==
+            TMH_RESPONSE_reply_arg_missing (connection, param_name))
+      ? GNUNET_SYSERR : GNUNET_NO;
+  }
+  if (GNUNET_OK !=
+      GNUNET_STRINGS_string_to_data (str,
+                                     strlen (str),
+                                     out_data,
+                                     out_size))
+    return (MHD_NO ==
+            TMH_RESPONSE_reply_arg_invalid (connection, param_name))
+      ? GNUNET_SYSERR : GNUNET_NO;
+  return GNUNET_OK;
+}
+
+
+/**
+ * Extraxt variable-size base32crockford encoded data from request.
+ *
+ * Queues an error response to the connection if the parameter is missing
+ * or the encoding is invalid.
+ *
+ * @param connection the MHD connection
+ * @param param_name the name of the parameter with the key
+ * @param[out] out_data pointer to allocate buffer and store the result
+ * @param[out] out_size set to the size of the buffer allocated in @a out_data
+ * @return
+ *   #GNUNET_YES if the the argument is present
+ *   #GNUNET_NO if the argument is absent or malformed
+ *   #GNUNET_SYSERR on internal error (error response could not be sent)
+ */
+int
+TMH_PARSE_mhd_request_var_arg_data (struct MHD_Connection *connection,
+                                    const char *param_name,
+                                    void **out_data,
+                                    size_t *out_size)
+{
+  const char *str;
+  size_t slen;
+  size_t olen;
+  void *out;
+
+  str = MHD_lookup_connection_value (connection,
+                                     MHD_GET_ARGUMENT_KIND,
+                                     param_name);
+  if (NULL == str)
+  {
+    return (MHD_NO ==
+            TMH_RESPONSE_reply_arg_missing (connection, param_name))
+      ? GNUNET_SYSERR : GNUNET_NO;
+  }
+  slen = strlen (str);
+  olen = (slen * 5) / 8;
+  out = GNUNET_malloc (olen);
+  if (GNUNET_OK !=
+      GNUNET_STRINGS_string_to_data (str,
+                                     strlen (str),
+                                     out,
+                                     olen))
+  {
+    GNUNET_free (out);
+    *out_size = 0;
+    return (MHD_NO ==
+            TMH_RESPONSE_reply_arg_invalid (connection, param_name))
+      ? GNUNET_SYSERR : GNUNET_NO;
+  }
+  *out_data = out;
+  *out_size = olen;
+  return GNUNET_OK;
+}
+
+
+/**
+ * Navigate through a JSON tree.
+ *
+ * Sends an error response if navigation is impossible (i.e.
+ * the JSON object is invalid)
+ *
+ * @param connection the connection to send an error response to
+ * @param root the JSON node to start the navigation at.
+ * @param ... navigation specification (see `enum TMH_PARSE_JsonNavigationCommand`)
+ * @return
+ *    #GNUNET_YES if navigation was successful
+ *    #GNUNET_NO if json is malformed, error response was generated
+ *    #GNUNET_SYSERR on internal error (no response was generated,
+ *                       connection must be closed)
+ */
+int
+TMH_PARSE_navigate_json (struct MHD_Connection *connection,
+                         const json_t *root,
+                         ...)
+{
+  va_list argp;
+  int ret;
+  json_t *path; /* what's our current path from 'root'? */
+
+  path = json_array ();
+  va_start (argp, root);
+  ret = 2; /* just not any of the valid return values */
+  while (2 == ret)
+  {
+    enum TMH_PARSE_JsonNavigationCommand command
+      = va_arg (argp,
+                enum TMH_PARSE_JsonNavigationCommand);
+
+    switch (command)
+    {
+    case TMH_PARSE_JNC_FIELD:
+      {
+        const char *fname = va_arg(argp, const char *);
+
+        json_array_append_new (path,
+                               json_string (fname));
+        root = json_object_get (root,
+                                fname);
+        if (NULL == root)
+        {
+          GNUNET_break_op (0);
+          ret = (MHD_YES ==
+                 TMH_RESPONSE_reply_json_pack (connection,
+                                               MHD_HTTP_BAD_REQUEST,
+                                               "{s:s, s:s, s:O}",
+                                               "error", "missing field in JSON",
+                                               "field", fname,
+                                               "path", path))
+            ? GNUNET_NO : GNUNET_SYSERR;
+          break;
+        }
+      }
+      break;
+
+    case TMH_PARSE_JNC_INDEX:
+      {
+        int fnum = va_arg(argp, int);
+
+        json_array_append_new (path,
+                               json_integer (fnum));
+        root = json_array_get (root,
+                               fnum);
+        if (NULL == root)
+        {
+          GNUNET_break_op (0);
+          ret = (MHD_YES ==
+                 TMH_RESPONSE_reply_json_pack (connection,
+                                               MHD_HTTP_BAD_REQUEST,
+                                               "{s:s, s:O}",
+                                               "error", "missing index in JSON",
+                                               "path", path))
+            ? GNUNET_NO : GNUNET_SYSERR;
+          break;
+        }
+      }
+      break;
+
+    case TMH_PARSE_JNC_RET_DATA:
+      {
+        void *where = va_arg (argp, void *);
+        size_t len = va_arg (argp, size_t);
+        const char *str;
+        int res;
+
+        str = json_string_value (root);
+        if (NULL == str)
+        {
+          GNUNET_break_op (0);
+          ret = (MHD_YES ==
+                 TMH_RESPONSE_reply_json_pack (connection,
+                                             MHD_HTTP_BAD_REQUEST,
+                                             "{s:s, s:O}",
+                                             "error", "string expected",
+                                             "path", path))
+            ? GNUNET_NO : GNUNET_SYSERR;
+          break;
+        }
+        res = GNUNET_STRINGS_string_to_data (str, strlen (str),
+                                             where, len);
+        if (GNUNET_OK != res)
+        {
+          GNUNET_break_op (0);
+          ret = (MHD_YES ==
+                 TMH_RESPONSE_reply_json_pack (connection,
+                                               MHD_HTTP_BAD_REQUEST,
+                                               "{s:s, s:O}",
+                                               "error", "malformed binary data in JSON",
+                                               "path", path))
+            ? GNUNET_NO : GNUNET_SYSERR;
+          break;
+        }
+        ret = GNUNET_OK;
+      }
+      break;
+
+    case TMH_PARSE_JNC_RET_DATA_VAR:
+      {
+        void **where = va_arg (argp, void **);
+        size_t *len = va_arg (argp, size_t *);
+        const char *str;
+        int res;
+
+        str = json_string_value (root);
+        if (NULL == str)
+        {
+          GNUNET_break_op (0);
+          ret = (MHD_YES ==
+                 TMH_RESPONSE_reply_internal_error (connection,
+                                                    "json_string_value() failed"))
+            ? GNUNET_NO : GNUNET_SYSERR;
+          break;
+        }
+        *len = (strlen (str) * 5) / 8;
+        if (NULL != where)
+        {
+          *where = GNUNET_malloc (*len);
+          res = GNUNET_STRINGS_string_to_data (str,
+                                               strlen (str),
+                                               *where,
+                                               *len);
+          if (GNUNET_OK != res)
+          {
+            GNUNET_break_op (0);
+            GNUNET_free (*where);
+            *where = NULL;
+            *len = 0;
+            ret = (MHD_YES ==
+                   TMH_RESPONSE_reply_json_pack (connection,
+                                                 MHD_HTTP_BAD_REQUEST,
+                                                 "{s:s, s:O}",
+                                                 "error", "malformed binary data in JSON",
+                                                 "path", path))
+              ? GNUNET_NO : GNUNET_SYSERR;
+            break;
+          }
+        }
+        ret = GNUNET_OK;
+      }
+      break;
+
+    case TMH_PARSE_JNC_RET_TYPED_JSON:
+      {
+        int typ = va_arg (argp, int);
+        const json_t **r_json = va_arg (argp, const json_t **);
+
+        if ( (NULL == root) ||
+             ( (-1 != typ) &&
+               (json_typeof (root) != typ)) )
+        {
+          GNUNET_break_op (0);
+          *r_json = NULL;
+          ret = (MHD_YES ==
+                 TMH_RESPONSE_reply_json_pack (connection,
+                                               MHD_HTTP_BAD_REQUEST,
+                                               "{s:s, s:i, s:i, s:O}",
+                                               "error", "wrong JSON field type",
+                                               "type_expected", typ,
+                                               "type_actual", json_typeof (root),
+                                               "path", path))
+            ? GNUNET_NO : GNUNET_SYSERR;
+          break;
+        }
+        *r_json = root;
+        json_incref ((json_t *) root);
+        ret = GNUNET_OK;
+      }
+      break;
+
+    case TMH_PARSE_JNC_RET_UINT64:
+      {
+        uint64_t *r_u64 = va_arg (argp, uint64_t *);
+
+        if (json_typeof (root) != JSON_INTEGER)
+        {
+          GNUNET_break_op (0);
+          ret = (MHD_YES ==
+                 TMH_RESPONSE_reply_json_pack (connection,
+                                               MHD_HTTP_BAD_REQUEST,
+                                               "{s:s, s:s, s:i, s:O}",
+                                               "error", "wrong JSON field type",
+                                               "type_expected", "integer",
+                                               "type_actual", json_typeof (root),
+                                               "path", path))
+            ? GNUNET_NO : GNUNET_SYSERR;
+          break;
+        }
+        *r_u64 = (uint64_t) json_integer_value (root);
+        ret = GNUNET_OK;
+      }
+      break;
+
+    case TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY:
+      {
+        struct TALER_DenominationPublicKey *where;
+        size_t len;
+        const char *str;
+        int res;
+        void *buf;
+
+        where = va_arg (argp,
+                        struct TALER_DenominationPublicKey *);
+        str = json_string_value (root);
+        if (NULL == str)
+        {
+          GNUNET_break_op (0);
+          ret = (MHD_YES ==
+                 TMH_RESPONSE_reply_json_pack (connection,
+                                               MHD_HTTP_BAD_REQUEST,
+                                               "{s:s, s:O}",
+                                               "error", "string expected",
+                                               "path", path))
+            ? GNUNET_NO : GNUNET_SYSERR;
+          break;
+        }
+        len = (strlen (str) * 5) / 8;
+        buf = GNUNET_malloc (len);
+        res = GNUNET_STRINGS_string_to_data (str,
+                                             strlen (str),
+                                             buf,
+                                             len);
+        if (GNUNET_OK != res)
+        {
+          GNUNET_break_op (0);
+          GNUNET_free (buf);
+          ret = (MHD_YES ==
+                 TMH_RESPONSE_reply_json_pack (connection,
+                                               MHD_HTTP_BAD_REQUEST,
+                                               "{s:s, s:O}",
+                                               "error", "malformed binary data in JSON",
+                                               "path", path))
+            ? GNUNET_NO : GNUNET_SYSERR;
+          break;
+        }
+        where->rsa_public_key = GNUNET_CRYPTO_rsa_public_key_decode (buf,
+                                                                     len);
+        GNUNET_free (buf);
+        if (NULL == where->rsa_public_key)
+        {
+          GNUNET_break_op (0);
+          ret = (MHD_YES ==
+                 TMH_RESPONSE_reply_json_pack (connection,
+                                               MHD_HTTP_BAD_REQUEST,
+                                               "{s:s, s:O}",
+                                               "error", "malformed RSA public key in JSON",
+                                               "path", path))
+            ? GNUNET_NO : GNUNET_SYSERR;
+          break;
+        }
+        ret = GNUNET_OK;
+        break;
+      }
+
+    case TMH_PARSE_JNC_RET_RSA_SIGNATURE:
+      {
+        struct TALER_DenominationSignature *where;
+        size_t len;
+        const char *str;
+        int res;
+        void *buf;
+
+        where = va_arg (argp,
+                        struct TALER_DenominationSignature *);
+        str = json_string_value (root);
+        if (NULL == str)
+        {
+          GNUNET_break_op (0);
+          ret = (MHD_YES ==
+                 TMH_RESPONSE_reply_json_pack (connection,
+                                               MHD_HTTP_BAD_REQUEST,
+                                               "{s:s, s:O}",
+                                               "error", "string expected",
+                                               "path", path))
+            ? GNUNET_NO : GNUNET_SYSERR;
+          break;
+        }
+        len = (strlen (str) * 5) / 8;
+        buf = GNUNET_malloc (len);
+        res = GNUNET_STRINGS_string_to_data (str,
+                                             strlen (str),
+                                             buf,
+                                             len);
+        if (GNUNET_OK != res)
+        {
+          GNUNET_break_op (0);
+          GNUNET_free (buf);
+          ret = (MHD_YES ==
+                 TMH_RESPONSE_reply_json_pack (connection,
+                                               MHD_HTTP_BAD_REQUEST,
+                                               "{s:s, s:O}",
+                                               "error", "malformed binary data in JSON",
+                                               "path", path))
+            ? GNUNET_NO : GNUNET_SYSERR;
+          break;
+        }
+        where->rsa_signature = GNUNET_CRYPTO_rsa_signature_decode (buf,
+                                                                   len);
+        GNUNET_free (buf);
+        if (NULL == where->rsa_signature)
+        {
+          GNUNET_break_op (0);
+          ret = (MHD_YES ==
+                 TMH_RESPONSE_reply_json_pack (connection,
+                                               MHD_HTTP_BAD_REQUEST,
+                                               "{s:s, s:O}",
+                                               "error", "malformed RSA signature in JSON",
+                                               "path", path))
+            ? GNUNET_NO : GNUNET_SYSERR;
+          break;
+        }
+        ret = GNUNET_OK;
+        break;
+      }
+
+    case TMH_PARSE_JNC_RET_AMOUNT:
+      {
+        struct TALER_Amount *where = va_arg (argp, void *);
+
+        if (GNUNET_OK !=
+            TALER_json_to_amount ((json_t *) root,
+                                  where))
+        {
+          GNUNET_break_op (0);
+          ret = (MHD_YES !=
+                 TMH_RESPONSE_reply_json_pack (connection,
+                                               MHD_HTTP_BAD_REQUEST,
+                                               "{s:s, s:O}",
+                                               "error", "Bad format",
+                                               "path", path))
+            ? GNUNET_SYSERR : GNUNET_NO;
+          break;
+        }
+        if (0 != strcmp (where->currency,
+                         TMH_exchange_currency_string))
+        {
+          GNUNET_break_op (0);
+          ret = (MHD_YES !=
+                 TMH_RESPONSE_reply_json_pack (connection,
+                                               MHD_HTTP_BAD_REQUEST,
+                                               "{s:s, s:O, s:s}",
+                                               "error", "Currency not supported",
+                                               "path", path,
+                                               "currency", where->currency))
+            ? GNUNET_SYSERR : GNUNET_NO;
+          memset (where, 0, sizeof (struct TALER_Amount));
+          break;
+        }
+        ret = GNUNET_OK;
+        break;
+      }
+
+    case TMH_PARSE_JNC_RET_TIME_ABSOLUTE:
+      {
+        struct GNUNET_TIME_Absolute *where = va_arg (argp, void *);
+
+        if (GNUNET_OK !=
+            TALER_json_to_abs ((json_t *) root,
+                               where))
+        {
+          GNUNET_break_op (0);
+          ret = (MHD_YES !=
+                 TMH_RESPONSE_reply_json_pack (connection,
+                                               MHD_HTTP_BAD_REQUEST,
+                                               "{s:s, s:s, s:O}",
+                                               "error", "Bad format",
+                                               "hint", "expected absolute time",
+                                               "path", path))
+            ? GNUNET_SYSERR : GNUNET_NO;
+          break;
+        }
+        ret = GNUNET_OK;
+        break;
+      }
+
+    default:
+      GNUNET_break (0);
+      ret = (MHD_YES ==
+             TMH_RESPONSE_reply_internal_error (connection,
+                                                "unhandled value in switch"))
+        ? GNUNET_NO : GNUNET_SYSERR;
+      break;
+    }
+  }
+  va_end (argp);
+  json_decref (path);
+  return ret;
+}
+
+
+/**
+ * Parse JSON object into components based on the given field
+ * specification.
+ *
+ * @param connection the connection to send an error response to
+ * @param root the JSON node to start the navigation at.
+ * @param spec field specification for the parser
+ * @return
+ *    #GNUNET_YES if navigation was successful (caller is responsible
+ *                for freeing allocated variable-size data using
+ *                #TMH_PARSE_release_data() when done)
+ *    #GNUNET_NO if json is malformed, error response was generated
+ *    #GNUNET_SYSERR on internal error
+ */
+int
+TMH_PARSE_json_data (struct MHD_Connection *connection,
+                     const json_t *root,
+                     struct TMH_PARSE_FieldSpecification *spec)
+{
+  unsigned int i;
+  int ret;
+
+  ret = GNUNET_YES;
+  for (i=0; NULL != spec[i].field_name; i++)
+  {
+    if (GNUNET_YES != ret)
+      break;
+    switch (spec[i].command)
+    {
+    case TMH_PARSE_JNC_FIELD:
+      GNUNET_break (0);
+      return GNUNET_SYSERR;
+    case TMH_PARSE_JNC_INDEX:
+      GNUNET_break (0);
+      return GNUNET_SYSERR;
+    case TMH_PARSE_JNC_RET_DATA:
+      ret = TMH_PARSE_navigate_json (connection,
+                                     root,
+                                     TMH_PARSE_JNC_FIELD,
+                                     spec[i].field_name,
+                                     TMH_PARSE_JNC_RET_DATA,
+                                     spec[i].destination,
+                                     spec[i].destination_size_in);
+      break;
+    case TMH_PARSE_JNC_RET_DATA_VAR:
+      ret = TMH_PARSE_navigate_json (connection,
+                                     root,
+                                     TMH_PARSE_JNC_FIELD,
+                                     spec[i].field_name,
+                                     TMH_PARSE_JNC_RET_DATA_VAR,
+                                     (void **) spec[i].destination,
+                                     spec[i].destination_size_out);
+      break;
+    case TMH_PARSE_JNC_RET_TYPED_JSON:
+      ret = TMH_PARSE_navigate_json (connection,
+                                     root,
+                                     TMH_PARSE_JNC_FIELD,
+                                     spec[i].field_name,
+                                     TMH_PARSE_JNC_RET_TYPED_JSON,
+                                     spec[i].type,
+                                     spec[i].destination);
+      break;
+    case TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY:
+      ret = TMH_PARSE_navigate_json (connection,
+                                     root,
+                                     TMH_PARSE_JNC_FIELD,
+                                     spec[i].field_name,
+                                     TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY,
+                                     spec[i].destination);
+      break;
+    case TMH_PARSE_JNC_RET_RSA_SIGNATURE:
+      ret = TMH_PARSE_navigate_json (connection,
+                                     root,
+                                     TMH_PARSE_JNC_FIELD,
+                                     spec[i].field_name,
+                                     TMH_PARSE_JNC_RET_RSA_SIGNATURE,
+                                     spec[i].destination);
+      break;
+    case TMH_PARSE_JNC_RET_AMOUNT:
+      GNUNET_assert (sizeof (struct TALER_Amount) ==
+                     spec[i].destination_size_in);
+      ret = TMH_PARSE_navigate_json (connection,
+                                     root,
+                                     TMH_PARSE_JNC_FIELD,
+                                     spec[i].field_name,
+                                     TMH_PARSE_JNC_RET_AMOUNT,
+                                     spec[i].destination);
+      break;
+    case TMH_PARSE_JNC_RET_TIME_ABSOLUTE:
+      GNUNET_assert (sizeof (struct GNUNET_TIME_Absolute) ==
+                     spec[i].destination_size_in);
+      ret = TMH_PARSE_navigate_json (connection,
+                                     root,
+                                     TMH_PARSE_JNC_FIELD,
+                                     spec[i].field_name,
+                                     TMH_PARSE_JNC_RET_TIME_ABSOLUTE,
+                                     spec[i].destination);
+      break;
+    case TMH_PARSE_JNC_RET_UINT64:
+      GNUNET_assert (sizeof (uint64_t) ==
+                     spec[i].destination_size_in);
+      ret = TMH_PARSE_navigate_json (connection,
+                                     root,
+                                     TMH_PARSE_JNC_FIELD,
+                                     spec[i].field_name,
+                                     TMH_PARSE_JNC_RET_UINT64,
+                                     spec[i].destination);
+      break;
+    }
+  }
+  if (GNUNET_YES != ret)
+    release_data (spec,
+                  i - 1);
+  return ret;
+}
+
+
+/**
+ * Release all memory allocated for the variable-size fields in
+ * the parser specification.
+ *
+ * @param spec specification to free
+ */
+void
+TMH_PARSE_release_data (struct TMH_PARSE_FieldSpecification *spec)
+{
+  unsigned int i;
+
+  for (i=0; NULL != spec[i].field_name; i++) ;
+  release_data (spec, i);
+}
+
+
+/**
+ * Generate line in parser specification for 64-bit integer
+ * given as an integer in JSON.
+ *
+ * @param field name of the field
+ * @param[out] u64 integer to initialize
+ * @return corresponding field spec
+ */
+struct TMH_PARSE_FieldSpecification
+TMH_PARSE_member_uint64 (const char *field,
+                         uint64_t *u64)
+{
+  struct TMH_PARSE_FieldSpecification ret =
+    { field, (void *) u64, sizeof (uint64_t), NULL, TMH_PARSE_JNC_RET_UINT64, 0 };
+  return ret;
+}
+
+
+/**
+ * Generate line in parser specification for JSON object value.
+ *
+ * @param field name of the field
+ * @param[out] jsonp address of pointer to JSON to initialize
+ * @return corresponding field spec
+ */
+struct TMH_PARSE_FieldSpecification
+TMH_PARSE_member_object (const char *field,
+                         json_t **jsonp)
+{
+  struct TMH_PARSE_FieldSpecification ret =
+    { field, jsonp, 0, NULL, TMH_PARSE_JNC_RET_TYPED_JSON, JSON_OBJECT };
+  *jsonp = NULL;
+  return ret;
+}
+
+
+/**
+ * Generate line in parser specification for JSON array value.
+ *
+ * @param field name of the field
+ * @param[out] jsonp address of JSON pointer to initialize
+ * @return corresponding field spec
+ */
+struct TMH_PARSE_FieldSpecification
+TMH_PARSE_member_array (const char *field,
+                        json_t **jsonp)
+{
+  struct TMH_PARSE_FieldSpecification ret =
+    { field, jsonp, 0, NULL, TMH_PARSE_JNC_RET_TYPED_JSON, JSON_ARRAY };
+  *jsonp = NULL;
+  return ret;
+}
+
+
+/**
+ * Generate line in parser specification for an absolute time.
+ *
+ * @param field name of the field
+ * @param[out] atime time to initialize
+ */
+struct TMH_PARSE_FieldSpecification
+TMH_PARSE_member_time_abs (const char *field,
+                           struct GNUNET_TIME_Absolute *atime)
+{
+  struct TMH_PARSE_FieldSpecification ret =
+    { field, atime, sizeof(struct GNUNET_TIME_Absolute), NULL, TMH_PARSE_JNC_RET_TIME_ABSOLUTE, 0 };
+  return ret;
+}
+
+
+/**
+ * Generate line in parser specification for RSA public key.
+ *
+ * @param field name of the field
+ * @param[out] pk key to initialize
+ * @return corresponding field spec
+ */
+struct TMH_PARSE_FieldSpecification
+TMH_PARSE_member_denomination_public_key (const char *field,
+                                          struct TALER_DenominationPublicKey *pk)
+{
+  struct TMH_PARSE_FieldSpecification ret =
+    { field, pk, 0, NULL, TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY, 0 };
+  pk->rsa_public_key = NULL;
+  return ret;
+}
+
+
+/**
+ * Generate line in parser specification for RSA public key.
+ *
+ * @param field name of the field
+ * @param sig the signature to initialize
+ * @return corresponding field spec
+ */
+struct TMH_PARSE_FieldSpecification
+TMH_PARSE_member_denomination_signature (const char *field,
+                                         struct TALER_DenominationSignature *sig)
+{
+  struct TMH_PARSE_FieldSpecification ret =
+    { field, sig, 0, NULL, TMH_PARSE_JNC_RET_RSA_SIGNATURE, 0 };
+  sig->rsa_signature = NULL;
+  return ret;
+}
+
+
+/**
+ * Generate line in parser specification for an amount.
+ *
+ * @param field name of the field
+ * @param amount a `struct TALER_Amount *` to initialize
+ * @return corresponding field spec
+ */
+struct TMH_PARSE_FieldSpecification
+TMH_PARSE_member_amount (const char *field,
+                         struct TALER_Amount *amount)
+{
+  struct TMH_PARSE_FieldSpecification ret =
+    { field, amount, sizeof(struct TALER_Amount), NULL, TMH_PARSE_JNC_RET_AMOUNT, 0 };
+  memset (amount, 0, sizeof (struct TALER_Amount));
+  return ret;
+}
+
+
+/**
+ * Generate line in parser specification for variable-size value.
+ *
+ * @param field name of the field
+ * @param[out] ptr pointer to initialize
+ * @param[out] ptr_size size to initialize
+ * @return corresponding field spec
+ */
+struct TMH_PARSE_FieldSpecification
+TMH_PARSE_member_variable (const char *field,
+                           void **ptr,
+                           size_t *ptr_size)
+{
+  struct TMH_PARSE_FieldSpecification ret =
+    { field, ptr, 0, ptr_size, TMH_PARSE_JNC_RET_DATA_VAR, 0 };
+  *ptr = NULL;
+  return ret;
+}
+
+/* end of taler-exchange-httpd_parsing.c */
diff --git a/src/exchange/taler-exchange-httpd_parsing.h b/src/exchange/taler-exchange-httpd_parsing.h
new file mode 100644
index 000000000..a39235685
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_parsing.h
@@ -0,0 +1,408 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_parsing.h
+ * @brief functions to parse incoming requests
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#ifndef TALER_EXCHANGE_HTTPD_PARSING_H
+#define TALER_EXCHANGE_HTTPD_PARSING_H
+
+#include <microhttpd.h>
+#include <jansson.h>
+#include "taler_util.h"
+
+
+/**
+ * Process a POST request containing a JSON object.  This
+ * function realizes an MHD POST processor that will
+ * (incrementally) process JSON data uploaded to the HTTP
+ * server.  It will store the required state in the
+ * "connection_cls", which must be cleaned up using
+ * #TMH_PARSE_post_cleanup_callback().
+ *
+ * @param connection the MHD connection
+ * @param con_cls the closure (points to a `struct Buffer *`)
+ * @param upload_data the POST data
+ * @param upload_data_size number of bytes in @a upload_data
+ * @param json the JSON object for a completed request
+ * @return
+ *    #GNUNET_YES if json object was parsed or at least
+ *               may be parsed in the future (call again);
+ *               `*json` will be NULL if we need to be called again,
+ *                and non-NULL if we are done.
+ *    #GNUNET_NO is request incomplete or invalid
+ *               (error message was generated)
+ *    #GNUNET_SYSERR on internal error
+ *               (we could not even queue an error message,
+ *                close HTTP session with MHD_NO)
+ */
+int
+TMH_PARSE_post_json (struct MHD_Connection *connection,
+                     void **con_cls,
+                     const char *upload_data,
+                     size_t *upload_data_size,
+                     json_t **json);
+
+
+/**
+ * Function called whenever we are done with a request
+ * to clean up our state.
+ *
+ * @param con_cls value as it was left by
+ *        #TMH_PARSE_post_json(), to be cleaned up
+ */
+void
+TMH_PARSE_post_cleanup_callback (void *con_cls);
+
+
+/**
+ * Constants for JSON navigation description.
+ */
+enum TMH_PARSE_JsonNavigationCommand
+{
+  /**
+   * Access a field.
+   * Param: const char *
+   */
+  TMH_PARSE_JNC_FIELD,
+
+  /**
+   * Access an array index.
+   * Param: int
+   */
+  TMH_PARSE_JNC_INDEX,
+
+  /**
+   * Return base32crockford encoded data of
+   * constant size.
+   * Params: (void *, size_t)
+   */
+  TMH_PARSE_JNC_RET_DATA,
+
+  /**
+   * Return base32crockford encoded data of
+   * variable size.
+   * Params: (void **, size_t *)
+   */
+  TMH_PARSE_JNC_RET_DATA_VAR,
+
+  /**
+   * Return a json object, which must be
+   * of the given type (JSON_* type constants,
+   * or -1 for any type).
+   * Params: (int, json_t **)
+   */
+  TMH_PARSE_JNC_RET_TYPED_JSON,
+
+  /**
+   * Return a `struct GNUNET_CRYPTO_rsa_PublicKey` which was
+   * encoded as variable-size base32crockford encoded data.
+   */
+  TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY,
+
+  /**
+   * Return a `struct GNUNET_CRYPTO_rsa_Signature` which was
+   * encoded as variable-size base32crockford encoded data.
+   */
+  TMH_PARSE_JNC_RET_RSA_SIGNATURE,
+
+  /**
+   * Return a `struct TALER_Amount` which was
+   * encoded within its own json object.
+   */
+  TMH_PARSE_JNC_RET_AMOUNT,
+
+  /**
+   * Return a `struct GNUNET_TIME_Absolute` which was
+   * encoded within its own json object.
+   * Param: struct GNUNET_TIME_Absolute *
+   */
+  TMH_PARSE_JNC_RET_TIME_ABSOLUTE,
+
+  /**
+   * Return a `uint64_t` which was
+   * encoded as a JSON integer.
+   * Param: uint64_t *
+   */
+  TMH_PARSE_JNC_RET_UINT64
+
+};
+
+
+/**
+ * Navigate through a JSON tree.
+ *
+ * Sends an error response if navigation is impossible (i.e.
+ * the JSON object is invalid)
+ *
+ * @param connection the connection to send an error response to
+ * @param root the JSON node to start the navigation at.
+ * @param ... navigation specification (see `enum TMH_PARSE_JsonNavigationCommand`)
+ * @return
+ *    #GNUNET_YES if navigation was successful
+ *    #GNUNET_NO if json is malformed, error response was generated
+ *    #GNUNET_SYSERR on internal error
+ */
+int
+TMH_PARSE_navigate_json (struct MHD_Connection *connection,
+                         const json_t *root,
+                         ...);
+
+
+/**
+ * @brief Specification for how to parse a JSON field.
+ */
+struct TMH_PARSE_FieldSpecification
+{
+  /**
+   * Name of the field.  NULL only to terminate array.
+   */
+  const char *field_name;
+
+  /**
+   * Where to store the result.  Must have exactly
+   * @e destination_size bytes, except if @e destination_size is zero.
+   * NULL to skip assignment (but check presence of the value).
+   */
+  void *destination;
+
+  /**
+   * How big should the result be, 0 for variable size.  In
+   * this case, @e destination must be a "void **", pointing
+   * to a location that is currently NULL and is to be allocated.
+   */
+  size_t destination_size_in;
+
+  /**
+   * @e destination_size_out will then be set to the size of the
+   * value that was stored in @e destination (useful for
+   * variable-size allocations).
+   */
+  size_t *destination_size_out;
+
+  /**
+   * Navigation command to use to extract the value.  Note that
+   * #TMH_PARSE_JNC_RET_DATA or #TMH_PARSE_JNC_RET_DATA_VAR must be used for @e
+   * destination_size_in and @e destination_size_out to have a
+   * meaning.  #TMH_PARSE_JNC_FIELD and #TMH_PARSE_JNC_INDEX must not be used here!
+   */
+  enum TMH_PARSE_JsonNavigationCommand command;
+
+  /**
+   * JSON type to use, only meaningful in connection with a @e command
+   * value of #TMH_PARSE_JNC_RET_TYPED_JSON.  Typical values are
+   * #JSON_ARRAY and #JSON_OBJECT.
+   */
+  int type;
+
+};
+
+
+/**
+ * Parse JSON object into components based on the given field
+ * specification.
+ *
+ * @param connection the connection to send an error response to
+ * @param root the JSON node to start the navigation at.
+ * @param spec field specification for the parser
+ * @return
+ *    #GNUNET_YES if navigation was successful (caller is responsible
+ *                for freeing allocated variable-size data using
+ *                #TMH_PARSE_release_data() when done)
+ *    #GNUNET_NO if json is malformed, error response was generated
+ *    #GNUNET_SYSERR on internal error
+ */
+int
+TMH_PARSE_json_data (struct MHD_Connection *connection,
+                     const json_t *root,
+                     struct TMH_PARSE_FieldSpecification *spec);
+
+
+/**
+ * Release all memory allocated for the variable-size fields in
+ * the parser specification.
+ *
+ * @param spec specification to free
+ */
+void
+TMH_PARSE_release_data (struct TMH_PARSE_FieldSpecification *spec);
+
+
+/**
+ * Generate line in parser specification for fixed-size value.
+ *
+ * @param field name of the field
+ * @param value where to store the value
+ */
+#define TMH_PARSE_member_fixed(field,value) { field, value, sizeof (*value), NULL, TMH_PARSE_JNC_RET_DATA, 0 }
+
+
+/**
+ * Generate line in parser specification for variable-size value.
+ *
+ * @param field name of the field
+ * @param[out] ptr pointer to initialize
+ * @param[out] ptr_size size to initialize
+ * @return corresponding field spec
+ */
+struct TMH_PARSE_FieldSpecification
+TMH_PARSE_member_variable (const char *field,
+                           void **ptr,
+                           size_t *ptr_size);
+
+
+/**
+ * Generate line in parser specification for 64-bit integer
+ * given as an integer in JSON.
+ *
+ * @param field name of the field
+ * @param[out] u64 integer to initialize
+ * @return corresponding field spec
+ */
+struct TMH_PARSE_FieldSpecification
+TMH_PARSE_member_uint64 (const char *field,
+                         uint64_t *u64);
+
+
+/**
+ * Generate line in parser specification for JSON array value.
+ *
+ * @param field name of the field
+ * @param[out] jsonp address of JSON pointer to initialize
+ * @return corresponding field spec
+ */
+struct TMH_PARSE_FieldSpecification
+TMH_PARSE_member_array (const char *field,
+                        json_t **jsonp);
+
+
+/**
+ * Generate line in parser specification for JSON object value.
+ *
+ * @param field name of the field
+ * @param[out] jsonp address of pointer to JSON to initialize
+ * @return corresponding field spec
+ */
+struct TMH_PARSE_FieldSpecification
+TMH_PARSE_member_object (const char *field,
+                         json_t **jsonp);
+
+
+/**
+ * Generate line in parser specification for RSA public key.
+ *
+ * @param field name of the field
+ * @param[out] pk key to initialize
+ * @return corresponding field spec
+ */
+struct TMH_PARSE_FieldSpecification
+TMH_PARSE_member_denomination_public_key (const char *field,
+                                          struct TALER_DenominationPublicKey *pk);
+
+
+/**
+ * Generate line in parser specification for RSA public key.
+ *
+ * @param field name of the field
+ * @param sig the signature to initialize
+ * @return corresponding field spec
+ */
+struct TMH_PARSE_FieldSpecification
+TMH_PARSE_member_denomination_signature (const char *field,
+                                         struct TALER_DenominationSignature *sig);
+
+
+/**
+ * Generate line in parser specification for an amount.
+ *
+ * @param field name of the field
+ * @param[out] amount a `struct TALER_Amount *` to initialize
+ * @return corresponding field spec
+ */
+struct TMH_PARSE_FieldSpecification
+TMH_PARSE_member_amount (const char *field,
+                         struct TALER_Amount *amount);
+
+
+/**
+ * Generate line in parser specification for an absolute time.
+ *
+ * @param field name of the field
+ * @param[out] atime time to initialize
+ * @return corresponding field spec
+ */
+struct TMH_PARSE_FieldSpecification
+TMH_PARSE_member_time_abs (const char *field,
+                           struct GNUNET_TIME_Absolute *atime);
+
+
+
+/**
+ * Generate line in parser specification indicating the end of the spec.
+ */
+#define TMH_PARSE_MEMBER_END { NULL, NULL, 0, NULL, TMH_PARSE_JNC_FIELD, 0 }
+
+
+/**
+ * Extraxt fixed-size base32crockford encoded data from request.
+ *
+ * Queues an error response to the connection if the parameter is missing or
+ * invalid.
+ *
+ * @param connection the MHD connection
+ * @param param_name the name of the parameter with the key
+ * @param[out] out_data pointer to store the result
+ * @param out_size expected size of @a out_data
+ * @return
+ *   #GNUNET_YES if the the argument is present
+ *   #GNUNET_NO if the argument is absent or malformed
+ *   #GNUNET_SYSERR on internal error (error response could not be sent)
+ */
+int
+TMH_PARSE_mhd_request_arg_data (struct MHD_Connection *connection,
+                                const char *param_name,
+                                void *out_data,
+                                size_t out_size);
+
+
+/**
+ * Extraxt variable-size base32crockford encoded data from request.
+ *
+ * Queues an error response to the connection if the parameter is missing
+ * or the encoding is invalid.
+ *
+ * @param connection the MHD connection
+ * @param param_name the name of the parameter with the key
+ * @param[out] out_data pointer to allocate buffer and store the result
+ * @param[out] out_size set to the size of the buffer allocated in @a out_data
+ * @return
+ *   #GNUNET_YES if the the argument is present
+ *   #GNUNET_NO if the argument is absent or malformed
+ *   #GNUNET_SYSERR on internal error (error response could not be sent)
+ */
+int
+TMH_PARSE_mhd_request_var_arg_data (struct MHD_Connection *connection,
+                                    const char *param_name,
+                                    void **out_data,
+                                    size_t *out_size);
+
+
+
+
+#endif /* TALER_EXCHANGE_HTTPD_PARSING_H */
diff --git a/src/exchange/taler-exchange-httpd_refresh.c b/src/exchange/taler-exchange-httpd_refresh.c
new file mode 100644
index 000000000..45bbf3d4d
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_refresh.c
@@ -0,0 +1,911 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_refresh.c
+ * @brief Handle /refresh/ requests
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <gnunet/gnunet_util_lib.h>
+#include <jansson.h>
+#include <microhttpd.h>
+#include "taler-exchange-httpd_parsing.h"
+#include "taler-exchange-httpd_mhd.h"
+#include "taler-exchange-httpd_refresh.h"
+#include "taler-exchange-httpd_responses.h"
+#include "taler-exchange-httpd_keystate.h"
+
+
+/**
+ * Handle a "/refresh/melt" request after the main JSON parsing has happened.
+ * We now need to validate the coins being melted and the session signature
+ * and then hand things of to execute the melt operation.
+ *
+ * @param connection the MHD connection to handle
+ * @param num_new_denoms number of coins to be created, size of y-dimension of @a commit_link array
+ * @param denom_pubs array of @a num_new_denoms keys
+ * @param coin_count number of coins to be melted, size of y-dimension of @a commit_coin array
+ * @param coin_melt_details array with @a coin_count entries with melting details
+ * @param session_hash hash over the data that the client commits to
+ * @param commit_coin 2d array of coin commitments (what the exchange is to sign
+ *                    once the "/refres/reveal" of cut and choose is done)
+ * @param commit_link 2d array of coin link commitments (what the exchange is
+ *                    to return via "/refresh/link" to enable linkage in the
+ *                    future)
+ * @return MHD result code
+ */
+static int
+handle_refresh_melt_binary (struct MHD_Connection *connection,
+                            unsigned int num_new_denoms,
+                            const struct TALER_DenominationPublicKey *denom_pubs,
+                            unsigned int coin_count,
+                            const struct TMH_DB_MeltDetails *coin_melt_details,
+                            const struct GNUNET_HashCode *session_hash,
+                            struct TALER_EXCHANGEDB_RefreshCommitCoin *const* commit_coin,
+                            struct TALER_RefreshCommitLinkP *const* commit_link)
+{
+  unsigned int i;
+  struct TMH_KS_StateHandle *key_state;
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dk;
+  struct TALER_EXCHANGEDB_DenominationKeyInformationP *dki;
+  struct TALER_Amount cost;
+  struct TALER_Amount total_cost;
+  struct TALER_Amount melt;
+  struct TALER_Amount value;
+  struct TALER_Amount fee_withdraw;
+  struct TALER_Amount fee_melt;
+  struct TALER_Amount total_melt;
+
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_amount_get_zero (TMH_exchange_currency_string,
+                                        &total_cost));
+  key_state = TMH_KS_acquire ();
+  for (i=0;i<num_new_denoms;i++)
+  {
+    dk = TMH_KS_denomination_key_lookup (key_state,
+                                         &denom_pubs[i],
+                                         TMH_KS_DKU_WITHDRAW);
+    if (NULL == dk)
+    {
+      GNUNET_break_op (0);
+      TMH_KS_release (key_state);
+      return TMH_RESPONSE_reply_arg_invalid (connection,
+                                             "new_denoms");
+    }
+    dki = &dk->issue;
+    TALER_amount_ntoh (&value,
+                       &dki->properties.value);
+    TALER_amount_ntoh (&fee_withdraw,
+                       &dki->properties.fee_withdraw);
+    if ( (GNUNET_OK !=
+          TALER_amount_add (&cost,
+                            &value,
+                            &fee_withdraw)) ||
+         (GNUNET_OK !=
+          TALER_amount_add (&total_cost,
+                            &cost,
+                            &total_cost)) )
+    {
+      GNUNET_break_op (0);
+      TMH_KS_release (key_state);
+      return TMH_RESPONSE_reply_internal_error (connection,
+                                                "cost calculation failure");
+    }
+  }
+
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_amount_get_zero (TMH_exchange_currency_string,
+                                        &total_melt));
+  for (i=0;i<coin_count;i++)
+  {
+    /* calculate contribution of the i-th melt by subtracting
+       the fee; add the rest to the total_melt value */
+    dk = TMH_KS_denomination_key_lookup (key_state,
+                                         &coin_melt_details[i].coin_info.denom_pub,
+                                         TMH_KS_DKU_DEPOSIT);
+    if (NULL == dk)
+    {
+      GNUNET_break (0);
+      return TMH_RESPONSE_reply_arg_invalid (connection,
+                                             "denom_pub");
+    }
+    dki = &dk->issue;
+    TALER_amount_ntoh (&fee_melt,
+                       &dki->properties.fee_refresh);
+    if (GNUNET_OK !=
+        TALER_amount_subtract (&melt,
+                               &coin_melt_details->melt_amount_with_fee,
+                               &fee_melt))
+    {
+      GNUNET_break_op (0);
+      TMH_KS_release (key_state);
+      return TMH_RESPONSE_reply_external_error (connection,
+                                                "Melt contribution below melting fee");
+    }
+    if (GNUNET_OK !=
+        TALER_amount_add (&total_melt,
+                          &melt,
+                          &total_melt))
+    {
+      GNUNET_break_op (0);
+      TMH_KS_release (key_state);
+      return TMH_RESPONSE_reply_internal_error (connection,
+                                                "balance calculation failure");
+    }
+  }
+  TMH_KS_release (key_state);
+  if (0 !=
+      TALER_amount_cmp (&total_cost,
+                        &total_melt))
+  {
+    GNUNET_break_op (0);
+    /* We require total value of coins being melted and
+       total value of coins being generated to match! */
+    return TMH_RESPONSE_reply_json_pack (connection,
+                                         MHD_HTTP_BAD_REQUEST,
+                                         "{s:s}",
+                                         "error", "value mismatch");
+  }
+  return TMH_DB_execute_refresh_melt (connection,
+                                      session_hash,
+                                      num_new_denoms,
+                                      denom_pubs,
+                                      coin_count,
+                                      coin_melt_details,
+                                      commit_coin,
+                                      commit_link);
+}
+
+
+/**
+ * Extract public coin information from a JSON object.
+ *
+ * @param connection the connection to send error responses to
+ * @param coin_info the JSON object to extract the coin info from
+ * @param[out] r_melt_detail set to details about the coin's melting permission (if valid)
+ * @return #GNUNET_YES if coin public info in JSON was valid
+ *         #GNUNET_NO JSON was invalid, response was generated
+ *         #GNUNET_SYSERR on internal error
+ */
+static int
+get_coin_public_info (struct MHD_Connection *connection,
+                      json_t *coin_info,
+                      struct TMH_DB_MeltDetails *r_melt_detail)
+{
+  int ret;
+  struct TALER_CoinSpendSignatureP melt_sig;
+  struct TALER_DenominationSignature sig;
+  struct TALER_DenominationPublicKey pk;
+  struct TALER_Amount amount;
+  struct TMH_PARSE_FieldSpecification spec[] = {
+    TMH_PARSE_member_fixed ("coin_pub", &r_melt_detail->coin_info.coin_pub),
+    TMH_PARSE_member_denomination_signature ("denom_sig", &sig),
+    TMH_PARSE_member_denomination_public_key ("denom_pub", &pk),
+    TMH_PARSE_member_fixed ("confirm_sig", &melt_sig),
+    TMH_PARSE_member_amount ("value_with_fee", &amount),
+    TMH_PARSE_MEMBER_END
+  };
+
+  ret = TMH_PARSE_json_data (connection,
+                             coin_info,
+                             spec);
+  if (GNUNET_OK != ret)
+  {
+    GNUNET_break_op (0);
+    return ret;
+  }
+  /* check exchange signature on the coin */
+  r_melt_detail->coin_info.denom_sig = sig;
+  r_melt_detail->coin_info.denom_pub = pk;
+  if (GNUNET_OK !=
+      TALER_test_coin_valid (&r_melt_detail->coin_info))
+  {
+    GNUNET_break_op (0);
+    TMH_PARSE_release_data (spec);
+    r_melt_detail->coin_info.denom_sig.rsa_signature = NULL;
+    r_melt_detail->coin_info.denom_pub.rsa_public_key = NULL;
+    return (MHD_YES ==
+            TMH_RESPONSE_reply_signature_invalid (connection,
+                                                  "denom_sig"))
+      ? GNUNET_NO : GNUNET_SYSERR;
+  }
+  r_melt_detail->melt_sig = melt_sig;
+  r_melt_detail->melt_amount_with_fee = amount;
+  return GNUNET_OK;
+}
+
+
+/**
+ * Verify that the signature shows that this coin is to be melted into
+ * the given @a session_hash melting session, and that this is a valid
+ * coin (we know the denomination key and the signature on it is
+ * valid).  Essentially, this does all of the per-coin checks that can
+ * be done before the transaction starts.
+ *
+ * @param connection the connection to send error responses to
+ * @param session_hash hash over refresh session the coin is melted into
+ * @param[in,out] melt_detail details about the coin's melting permission,
+ *                            the `melt_fee` is updated
+ * @return #GNUNET_YES if coin public info in JSON was valid
+ *         #GNUNET_NO JSON was invalid, response was generated
+ *         #GNUNET_SYSERR on internal error
+ */
+static int
+verify_coin_public_info (struct MHD_Connection *connection,
+                         const struct GNUNET_HashCode *session_hash,
+                         struct TMH_DB_MeltDetails *melt_detail)
+{
+  struct TALER_RefreshMeltCoinAffirmationPS body;
+  struct TMH_KS_StateHandle *key_state;
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki;
+  struct TALER_Amount fee_refresh;
+
+  key_state = TMH_KS_acquire ();
+  dki = TMH_KS_denomination_key_lookup (key_state,
+                                        &melt_detail->coin_info.denom_pub,
+					TMH_KS_DKU_DEPOSIT);
+  if (NULL == dki)
+  {
+    TMH_KS_release (key_state);
+    TALER_LOG_WARNING ("Unknown denomination key in /refresh/melt request\n");
+    return TMH_RESPONSE_reply_arg_unknown (connection,
+                                           "denom_pub");
+  }
+  TALER_amount_ntoh (&fee_refresh,
+                     &dki->issue.properties.fee_refresh);
+  melt_detail->melt_fee = fee_refresh;
+  body.purpose.size = htonl (sizeof (struct TALER_RefreshMeltCoinAffirmationPS));
+  body.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_MELT);
+  body.session_hash = *session_hash;
+  TALER_amount_hton (&body.amount_with_fee,
+                     &melt_detail->melt_amount_with_fee);
+  TALER_amount_hton (&body.melt_fee,
+                     &fee_refresh);
+  body.coin_pub = melt_detail->coin_info.coin_pub;
+  if (TALER_amount_cmp (&fee_refresh,
+                        &melt_detail->melt_amount_with_fee) > 0)
+  {
+    GNUNET_break_op (0);
+    TMH_KS_release (key_state);
+    return (MHD_YES ==
+            TMH_RESPONSE_reply_external_error (connection,
+                                               "melt amount smaller than melting fee"))
+      ? GNUNET_NO : GNUNET_SYSERR;
+  }
+
+  TMH_KS_release (key_state);
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_MELT,
+                                  &body.purpose,
+                                  &melt_detail->melt_sig.eddsa_signature,
+                                  &melt_detail->coin_info.coin_pub.eddsa_pub))
+  {
+    GNUNET_break_op (0);
+    if (MHD_YES !=
+        TMH_RESPONSE_reply_signature_invalid (connection,
+                                              "confirm_sig"))
+      return GNUNET_SYSERR;
+    return GNUNET_NO;
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Release memory from the @a commit_coin array.
+ *
+ * @param commit_coin array to release
+ * @param kappa size of 1st dimension
+ * @param num_new_coins size of 2nd dimension
+ */
+static void
+free_commit_coins (struct TALER_EXCHANGEDB_RefreshCommitCoin **commit_coin,
+                   unsigned int kappa,
+                   unsigned int num_new_coins)
+{
+  unsigned int i;
+  unsigned int j;
+
+  for (i=0;i<kappa;i++)
+  {
+    if (NULL == commit_coin[i])
+      break;
+    for (j=0;j<num_new_coins;j++)
+    {
+      GNUNET_free_non_null (commit_coin[i][j].coin_ev);
+      GNUNET_free_non_null (commit_coin[i][j].refresh_link);
+    }
+    GNUNET_free (commit_coin[i]);
+  }
+}
+
+
+/**
+ * Release memory from the @a commit_link array.
+ *
+ * @param commit_link array to release
+ * @param kappa size of 1st dimension
+ * @param num_old_coins size of 2nd dimension
+ */
+static void
+free_commit_links (struct TALER_RefreshCommitLinkP **commit_link,
+                   unsigned int kappa,
+                   unsigned int num_old_coins)
+{
+  unsigned int i;
+
+  for (i=0;i<kappa;i++)
+  {
+    if (NULL == commit_link[i])
+      break;
+    GNUNET_free (commit_link[i]);
+  }
+}
+
+
+/**
+ * Handle a "/refresh/melt" request after the first parsing has happened.
+ * We now need to validate the coins being melted and the session signature
+ * and then hand things of to execute the melt operation.  This function
+ * parses the JSON arrays and then passes processing on to
+ * #handle_refresh_melt_binary().
+ *
+ * @param connection the MHD connection to handle
+ * @param new_denoms array of denomination keys
+ * @param melt_coins array of coins to melt
+ * @param num_oldcoins number of coins that are being melted
+ * @param transfer_pubs #TALER_CNC_KAPPA-dimensional array of @a num_oldcoins transfer keys
+ * @param secret_encs #TALER_CNC_KAPPA-dimensional array of @a num_oldcoins secrets
+ * @param num_newcoins number of coins that the refresh will generate
+ * @param coin_evs #TALER_CNC_KAPPA-dimensional array of @a num_newcoins envelopes to sign
+ * @param link_encs #TALER_CNC_KAPPA-dimensional array of @a num_newcoins encrypted links
+ * @return MHD result code
+ */
+static int
+handle_refresh_melt_json (struct MHD_Connection *connection,
+                          const json_t *new_denoms,
+                          const json_t *melt_coins,
+                          unsigned int num_oldcoins,
+                          const json_t *transfer_pubs,
+                          const json_t *secret_encs,
+                          unsigned int num_newcoins,
+                          const json_t *coin_evs,
+                          const json_t *link_encs)
+{
+  int res;
+  unsigned int i;
+  unsigned int j;
+  struct TALER_DenominationPublicKey *denom_pubs;
+  unsigned int num_new_denoms;
+  struct TMH_DB_MeltDetails *coin_melt_details;
+  unsigned int coin_count;
+  struct GNUNET_HashCode session_hash;
+  struct GNUNET_HashContext *hash_context;
+  struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coin[TALER_CNC_KAPPA];
+  struct TALER_RefreshCommitLinkP *commit_link[TALER_CNC_KAPPA];
+
+  /* For the signature check, we hash most of the inputs together
+     (except for the signatures on the coins). */
+  hash_context = GNUNET_CRYPTO_hash_context_start ();
+  num_new_denoms = json_array_size (new_denoms);
+  denom_pubs = GNUNET_malloc (num_new_denoms *
+                              sizeof (struct TALER_DenominationPublicKey));
+  for (i=0;i<num_new_denoms;i++)
+  {
+    char *buf;
+    size_t buf_size;
+
+    res = TMH_PARSE_navigate_json (connection,
+                                   new_denoms,
+                                   TMH_PARSE_JNC_INDEX, (int) i,
+                                   TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY,
+                                   &denom_pubs[i].rsa_public_key);
+    if (GNUNET_OK != res)
+    {
+      res = (GNUNET_NO == res) ? MHD_YES : MHD_NO;
+      goto cleanup_denoms;
+    }
+    buf_size = GNUNET_CRYPTO_rsa_public_key_encode (denom_pubs[i].rsa_public_key,
+                                                    &buf);
+    GNUNET_CRYPTO_hash_context_read (hash_context,
+                                     buf,
+                                     buf_size);
+    GNUNET_free (buf);
+  }
+
+  coin_count = json_array_size (melt_coins);
+  coin_melt_details = GNUNET_new_array (coin_count,
+                                        struct TMH_DB_MeltDetails);
+  for (i=0;i<coin_count;i++)
+  {
+    /* decode JSON data on coin to melt */
+    struct TALER_AmountNBO melt_amount;
+
+    res = get_coin_public_info (connection,
+                                json_array_get (melt_coins, i),
+                                &coin_melt_details[i]);
+    if (GNUNET_OK != res)
+    {
+      GNUNET_break_op (0);
+      res = (GNUNET_NO == res) ? MHD_YES : MHD_NO;
+      goto cleanup_melt_details;
+    }
+    /* Check that the client does not try to melt the same coin twice
+       into the same session! */
+    for (j=0;j<i;j++)
+    {
+      if (0 == memcmp (&coin_melt_details[i].coin_info.coin_pub,
+                       &coin_melt_details[j].coin_info.coin_pub,
+                       sizeof (struct TALER_CoinSpendPublicKeyP)))
+      {
+        GNUNET_break_op (0);
+        res = TMH_RESPONSE_reply_external_error (connection,
+                                                 "melting same coin twice in same session is not allowed");
+        goto cleanup_melt_details;
+      }
+    }
+    TALER_amount_hton (&melt_amount,
+                       &coin_melt_details[i].melt_amount_with_fee);
+    GNUNET_CRYPTO_hash_context_read (hash_context,
+                                     &coin_melt_details[i].coin_info.coin_pub,
+                                     sizeof (struct TALER_CoinSpendPublicKeyP));
+    GNUNET_CRYPTO_hash_context_read (hash_context,
+                                     &melt_amount,
+                                     sizeof (struct TALER_AmountNBO));
+  }
+
+  /* parse JSON arrays into 2d binary arrays and hash everything
+     together for the signature check */
+  memset (commit_coin, 0, sizeof (commit_coin));
+  memset (commit_link, 0, sizeof (commit_link));
+  for (i = 0; i < TALER_CNC_KAPPA; i++)
+  {
+    commit_coin[i] = GNUNET_malloc (num_newcoins *
+                                    sizeof (struct TALER_EXCHANGEDB_RefreshCommitCoin));
+    for (j = 0; j < num_newcoins; j++)
+    {
+      char *link_enc;
+      size_t link_enc_size;
+      struct TALER_EXCHANGEDB_RefreshCommitCoin *rcc = &commit_coin[i][j];
+
+      res = TMH_PARSE_navigate_json (connection,
+                                     coin_evs,
+                                     TMH_PARSE_JNC_INDEX, (int) i,
+                                     TMH_PARSE_JNC_INDEX, (int) j,
+                                     TMH_PARSE_JNC_RET_DATA_VAR,
+                                     &rcc->coin_ev,
+                                     &rcc->coin_ev_size);
+
+      if (GNUNET_OK != res)
+      {
+        GNUNET_break_op (0);
+        res = (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
+        goto cleanup;
+      }
+
+      GNUNET_CRYPTO_hash_context_read (hash_context,
+                                       rcc->coin_ev,
+                                       rcc->coin_ev_size);
+      res = TMH_PARSE_navigate_json (connection,
+                                     link_encs,
+                                     TMH_PARSE_JNC_INDEX, (int) i,
+                                     TMH_PARSE_JNC_INDEX, (int) j,
+                                     TMH_PARSE_JNC_RET_DATA_VAR,
+                                     &link_enc,
+                                     &link_enc_size);
+      if (GNUNET_OK != res)
+      {
+        GNUNET_break_op (0);
+        res = (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
+        goto cleanup;
+      }
+      rcc->refresh_link
+        = TALER_refresh_link_encrypted_decode (link_enc,
+                                               link_enc_size);
+      GNUNET_CRYPTO_hash_context_read (hash_context,
+                                       link_enc,
+                                       link_enc_size);
+      GNUNET_free (link_enc);
+    }
+  }
+
+  for (i = 0; i < TALER_CNC_KAPPA; i++)
+  {
+    commit_link[i] = GNUNET_malloc (num_oldcoins *
+                                    sizeof (struct TALER_RefreshCommitLinkP));
+    for (j = 0; j < num_oldcoins; j++)
+    {
+      struct TALER_RefreshCommitLinkP *rcl = &commit_link[i][j];
+
+      res = TMH_PARSE_navigate_json (connection,
+                                     transfer_pubs,
+                                     TMH_PARSE_JNC_INDEX, (int) i,
+                                     TMH_PARSE_JNC_INDEX, (int) j,
+                                     TMH_PARSE_JNC_RET_DATA,
+                                     &rcl->transfer_pub,
+                                     sizeof (struct TALER_TransferPublicKeyP));
+      if (GNUNET_OK != res)
+      {
+        GNUNET_break_op (0);
+        res = (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
+        goto cleanup;
+      }
+      res = TMH_PARSE_navigate_json (connection,
+                                     secret_encs,
+                                     TMH_PARSE_JNC_INDEX, (int) i,
+                                     TMH_PARSE_JNC_INDEX, (int) j,
+                                     TMH_PARSE_JNC_RET_DATA,
+                                     &rcl->shared_secret_enc,
+                                     sizeof (struct TALER_EncryptedLinkSecretP));
+      if (GNUNET_OK != res)
+      {
+        GNUNET_break_op (0);
+        res = (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
+        goto cleanup;
+      }
+      GNUNET_CRYPTO_hash_context_read (hash_context,
+                                       rcl,
+                                       sizeof (struct TALER_RefreshCommitLinkP));
+    }
+  }
+  GNUNET_CRYPTO_hash_context_finish (hash_context,
+                                     &session_hash);
+  hash_context = NULL;
+  for (i=0;i<coin_count;i++)
+  {
+    /* verify signatures on coins to melt */
+    res = verify_coin_public_info (connection,
+                                   &session_hash,
+                                   &coin_melt_details[i]);
+    if (GNUNET_OK != res)
+    {
+      GNUNET_break_op (0);
+      res = (GNUNET_NO == res) ? MHD_YES : MHD_NO;
+      goto cleanup;
+    }
+  }
+
+  /* execute commit */
+  res = handle_refresh_melt_binary (connection,
+                                    num_new_denoms,
+                                    denom_pubs,
+                                    coin_count,
+                                    coin_melt_details,
+                                    &session_hash,
+                                    commit_coin,
+                                    commit_link);
+ cleanup:
+  free_commit_coins (commit_coin,
+                     TALER_CNC_KAPPA,
+                     num_newcoins);
+  free_commit_links (commit_link,
+                     TALER_CNC_KAPPA,
+                     num_oldcoins);
+ cleanup_melt_details:
+  for (j=0;j<coin_count;j++)
+  {
+    if (NULL != coin_melt_details[j].coin_info.denom_pub.rsa_public_key)
+      GNUNET_CRYPTO_rsa_public_key_free (coin_melt_details[j].coin_info.denom_pub.rsa_public_key);
+    if (NULL != coin_melt_details[j].coin_info.denom_sig.rsa_signature)
+      GNUNET_CRYPTO_rsa_signature_free (coin_melt_details[j].coin_info.denom_sig.rsa_signature);
+  }
+  GNUNET_free (coin_melt_details);
+ cleanup_denoms:
+  for (j=0;j<num_new_denoms;j++)
+    if (NULL != denom_pubs[j].rsa_public_key)
+      GNUNET_CRYPTO_rsa_public_key_free (denom_pubs[j].rsa_public_key);
+  GNUNET_free (denom_pubs);
+  if (NULL != hash_context)
+    GNUNET_CRYPTO_hash_context_abort (hash_context);
+  return res;
+}
+
+
+/**
+ * Handle a "/refresh/melt" request.  Parses the request into the JSON
+ * components and then hands things of to #handle_refresh_melt_json()
+ * to validate the melted coins, the signature and execute the melt
+ * using TMH_DB_execute_refresh_melt().
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_REFRESH_handler_refresh_melt (struct TMH_RequestHandler *rh,
+                                  struct MHD_Connection *connection,
+                                  void **connection_cls,
+                                  const char *upload_data,
+                                  size_t *upload_data_size)
+{
+  json_t *root;
+  json_t *new_denoms;
+  json_t *melt_coins;
+  json_t *coin_evs;
+  json_t *link_encs;
+  json_t *transfer_pubs;
+  json_t *secret_encs;
+  unsigned int num_oldcoins;
+  unsigned int num_newcoins;
+  json_t *coin_detail;
+  int res;
+  struct TMH_PARSE_FieldSpecification spec[] = {
+    TMH_PARSE_member_array ("new_denoms", &new_denoms),
+    TMH_PARSE_member_array ("melt_coins", &melt_coins),
+    TMH_PARSE_member_array ("coin_evs", &coin_evs),
+    TMH_PARSE_member_array ("link_encs", &link_encs),
+    TMH_PARSE_member_array ("transfer_pubs", &transfer_pubs),
+    TMH_PARSE_member_array ("secret_encs", &secret_encs),
+    TMH_PARSE_MEMBER_END
+  };
+
+  res = TMH_PARSE_post_json (connection,
+                             connection_cls,
+                             upload_data,
+                             upload_data_size,
+                             &root);
+  if (GNUNET_SYSERR == res)
+    return MHD_NO;
+  if ( (GNUNET_NO == res) || (NULL == root) )
+    return MHD_YES;
+
+  res = TMH_PARSE_json_data (connection,
+                             root,
+                             spec);
+  json_decref (root);
+  if (GNUNET_OK != res)
+    return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
+
+  /* Determine dimensionality of the request (kappa, #old and #new coins) */
+  if (TALER_CNC_KAPPA != json_array_size (coin_evs))
+  {
+    GNUNET_break_op (0);
+    TMH_PARSE_release_data (spec);
+    return TMH_RESPONSE_reply_arg_invalid (connection,
+                                           "coin_evs");
+  }
+  if (TALER_CNC_KAPPA != json_array_size (transfer_pubs))
+  {
+    GNUNET_break_op (0);
+    TMH_PARSE_release_data (spec);
+    return TMH_RESPONSE_reply_arg_invalid (connection,
+                                           "transfer_pubs");
+  }
+  res = TMH_PARSE_navigate_json (connection,
+                                 coin_evs,
+                                 TMH_PARSE_JNC_INDEX, (int) 0,
+                                 TMH_PARSE_JNC_RET_TYPED_JSON,
+                                 JSON_ARRAY, &coin_detail);
+  if (GNUNET_OK != res)
+  {
+    GNUNET_break_op (0);
+    TMH_PARSE_release_data (spec);
+    return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
+  }
+  num_newcoins = json_array_size (coin_detail);
+  json_decref (coin_detail);
+  res = TMH_PARSE_navigate_json (connection,
+                                 transfer_pubs,
+                                 TMH_PARSE_JNC_INDEX, (int) 0,
+                                 TMH_PARSE_JNC_RET_TYPED_JSON,
+                                 JSON_ARRAY, &coin_detail);
+  if (GNUNET_OK != res)
+  {
+    GNUNET_break_op (0);
+    TMH_PARSE_release_data (spec);
+    return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
+  }
+  num_oldcoins = json_array_size (coin_detail);
+  json_decref (coin_detail);
+  res = handle_refresh_melt_json (connection,
+                                  new_denoms,
+                                  melt_coins,
+                                  num_oldcoins,
+                                  transfer_pubs,
+                                  secret_encs,
+                                  num_newcoins,
+                                  coin_evs,
+                                  link_encs);
+  TMH_PARSE_release_data (spec);
+  return res;
+}
+
+
+/**
+ * Handle a "/refresh/reveal" request.   Parses the given JSON
+ * transfer private keys and if successful, passes everything to
+ * #TMH_DB_execute_refresh_reveal() which will verify that the
+ * revealed information is valid then returns the signed refreshed
+ * coins.
+ *
+ * @param connection the MHD connection to handle
+ * @param session_hash hash identifying the melting session
+ * @param num_oldcoins length of the 2nd dimension of @a transfer_privs array
+ * @param tp_json private transfer keys in JSON format
+ * @return MHD result code
+  */
+static int
+handle_refresh_reveal_json (struct MHD_Connection *connection,
+                            const struct GNUNET_HashCode *session_hash,
+                            unsigned int num_oldcoins,
+                            const json_t *tp_json)
+{
+  struct TALER_TransferPrivateKeyP *transfer_privs[TALER_CNC_KAPPA - 1];
+  unsigned int i;
+  unsigned int j;
+  int res;
+
+  for (i = 0; i < TALER_CNC_KAPPA - 1; i++)
+    transfer_privs[i] = GNUNET_malloc (num_oldcoins *
+                                       sizeof (struct TALER_TransferPrivateKeyP));
+  res = GNUNET_OK;
+  for (i = 0; i < TALER_CNC_KAPPA - 1; i++)
+  {
+    if (GNUNET_OK != res)
+      break;
+    for (j = 0; j < num_oldcoins; j++)
+    {
+      if (GNUNET_OK != res)
+        break;
+      res = TMH_PARSE_navigate_json (connection,
+                                     tp_json,
+                                     TMH_PARSE_JNC_INDEX, (int) i,
+                                     TMH_PARSE_JNC_INDEX, (int) j,
+                                     TMH_PARSE_JNC_RET_DATA,
+                                     &transfer_privs[i][j],
+                                     sizeof (struct TALER_TransferPrivateKeyP));
+      GNUNET_break_op (GNUNET_OK == res);
+    }
+  }
+  if (GNUNET_OK != res)
+    res = (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
+  else
+    res = TMH_DB_execute_refresh_reveal (connection,
+					 session_hash,
+					 num_oldcoins,
+					 transfer_privs);
+  for (i = 0; i < TALER_CNC_KAPPA - 1; i++)
+    GNUNET_free (transfer_privs[i]);
+  return res;
+}
+
+
+/**
+ * Handle a "/refresh/reveal" request. This time, the client reveals
+ * the private transfer keys except for the cut-and-choose value
+ * returned from "/refresh/melt".  This function parses the revealed
+ * keys and secrets and ultimately passes everything to
+ * #TMH_DB_execute_refresh_reveal() which will verify that the
+ * revealed information is valid then returns the signed refreshed
+ * coins.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_REFRESH_handler_refresh_reveal (struct TMH_RequestHandler *rh,
+                                    struct MHD_Connection *connection,
+                                    void **connection_cls,
+                                    const char *upload_data,
+                                    size_t *upload_data_size)
+{
+  struct GNUNET_HashCode session_hash;
+  int res;
+  unsigned int num_oldcoins;
+  json_t *reveal_detail;
+  json_t *root;
+  json_t *transfer_privs;
+  struct TMH_PARSE_FieldSpecification spec[] = {
+    TMH_PARSE_member_fixed ("session_hash", &session_hash),
+    TMH_PARSE_member_array ("transfer_privs", &transfer_privs),
+    TMH_PARSE_MEMBER_END
+  };
+
+  res = TMH_PARSE_post_json (connection,
+                             connection_cls,
+                             upload_data,
+                             upload_data_size,
+                             &root);
+  if (GNUNET_SYSERR == res)
+    return MHD_NO;
+  if ( (GNUNET_NO == res) || (NULL == root) )
+    return MHD_YES;
+
+  res = TMH_PARSE_json_data (connection,
+                             root,
+                             spec);
+  json_decref (root);
+  if (GNUNET_OK != res)
+  {
+    GNUNET_break_op (0);
+    return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
+  }
+  /* Determine dimensionality of the request (kappa and #old coins) */
+  /* Note we do +1 as 1 row (cut-and-choose!) is missing! */
+  if (TALER_CNC_KAPPA != json_array_size (transfer_privs) + 1)
+  {
+    TMH_PARSE_release_data (spec);
+    GNUNET_break_op (0);
+    return TMH_RESPONSE_reply_arg_invalid (connection,
+                                           "transfer_privs");
+  }
+  res = TMH_PARSE_navigate_json (connection,
+                                 transfer_privs,
+                                 TMH_PARSE_JNC_INDEX, 0,
+                                 TMH_PARSE_JNC_RET_TYPED_JSON,
+                                 JSON_ARRAY,
+                                 &reveal_detail);
+  if (GNUNET_OK != res)
+  {
+    TMH_PARSE_release_data (spec);
+    GNUNET_break_op (0);
+    return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
+  }
+  num_oldcoins = json_array_size (reveal_detail);
+  json_decref (reveal_detail);
+  res = handle_refresh_reveal_json (connection,
+                                    &session_hash,
+                                    num_oldcoins,
+                                    transfer_privs);
+  TMH_PARSE_release_data (spec);
+  return res;
+}
+
+
+/**
+ * Handle a "/refresh/link" request.  Note that for "/refresh/link"
+ * we do use a simple HTTP GET, and a HTTP POST!
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_REFRESH_handler_refresh_link (struct TMH_RequestHandler *rh,
+                                  struct MHD_Connection *connection,
+                                  void **connection_cls,
+                                  const char *upload_data,
+                                  size_t *upload_data_size)
+{
+  struct TALER_CoinSpendPublicKeyP coin_pub;
+  int res;
+
+  res = TMH_PARSE_mhd_request_arg_data (connection,
+                                        "coin_pub",
+                                        &coin_pub,
+                                        sizeof (struct TALER_CoinSpendPublicKeyP));
+  if (GNUNET_SYSERR == res)
+    return MHD_NO;
+  if (GNUNET_OK != res)
+    return MHD_YES;
+  return TMH_DB_execute_refresh_link (connection,
+                                      &coin_pub);
+}
+
+
+/* end of taler-exchange-httpd_refresh.c */
diff --git a/src/exchange/taler-exchange-httpd_refresh.h b/src/exchange/taler-exchange-httpd_refresh.h
new file mode 100644
index 000000000..aae9c4c6c
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_refresh.h
@@ -0,0 +1,94 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_refresh.h
+ * @brief Handle /refresh/ requests
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#ifndef TALER_EXCHANGE_HTTPD_REFRESH_H
+#define TALER_EXCHANGE_HTTPD_REFRESH_H
+
+#include <gnunet/gnunet_util_lib.h>
+#include <microhttpd.h>
+#include "taler-exchange-httpd.h"
+
+
+/**
+ * Handle a "/refresh/melt" request.  Parses the request into the JSON
+ * components and then hands things of to #handle_refresh_melt_json()
+ * to validate the melted coins, the signature and execute the melt
+ * using TMH_DB_execute_refresh_melt().
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_REFRESH_handler_refresh_melt (struct TMH_RequestHandler *rh,
+                                  struct MHD_Connection *connection,
+                                  void **connection_cls,
+                                  const char *upload_data,
+                                  size_t *upload_data_size);
+
+
+/**
+ * Handle a "/refresh/reveal" request.  This time, the client reveals
+ * the private transfer keys except for the cut-and-choose value
+ * returned from "/refresh/commit".  This function parses the revealed
+ * keys and secrets and ultimately passes everything to
+ * #TMH_DB_execute_refresh_reveal() which will verify that the
+ * revealed information is valid then returns the signed refreshed
+ * coins.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_REFRESH_handler_refresh_reveal (struct TMH_RequestHandler *rh,
+                                    struct MHD_Connection *connection,
+                                    void **connection_cls,
+                                    const char *upload_data,
+                                    size_t *upload_data_size);
+
+
+/**
+ * Handle a "/refresh/link" request
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_REFRESH_handler_refresh_link (struct TMH_RequestHandler *rh,
+                                  struct MHD_Connection *connection,
+                                  void **connection_cls,
+                                  const char *upload_data,
+                                  size_t *upload_data_size);
+
+
+#endif
diff --git a/src/exchange/taler-exchange-httpd_reserve.c b/src/exchange/taler-exchange-httpd_reserve.c
new file mode 100644
index 000000000..45f073107
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_reserve.c
@@ -0,0 +1,186 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014,2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_reserve.c
+ * @brief Handle /reserve/ requests
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <gnunet/gnunet_util_lib.h>
+#include <jansson.h>
+#include "taler-exchange-httpd_reserve.h"
+#include "taler-exchange-httpd_parsing.h"
+#include "taler-exchange-httpd_responses.h"
+#include "taler-exchange-httpd_keystate.h"
+
+
+/**
+ * Handle a "/reserve/status" request.  Parses the
+ * given "reserve_pub" argument (which should contain the
+ * EdDSA public key of a reserve) and then respond with the
+ * status of the reserve.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_RESERVE_handler_reserve_status (struct TMH_RequestHandler *rh,
+                                    struct MHD_Connection *connection,
+                                    void **connection_cls,
+                                    const char *upload_data,
+                                    size_t *upload_data_size)
+{
+  struct TALER_ReservePublicKeyP reserve_pub;
+  int res;
+
+  res = TMH_PARSE_mhd_request_arg_data (connection,
+                                        "reserve_pub",
+                                        &reserve_pub,
+                                        sizeof (struct TALER_ReservePublicKeyP));
+  if (GNUNET_SYSERR == res)
+    return MHD_NO; /* internal error */
+  if (GNUNET_NO == res)
+    return MHD_YES; /* parse error */
+  return TMH_DB_execute_reserve_status (connection,
+                                        &reserve_pub);
+}
+
+
+/**
+ * Handle a "/reserve/withdraw" request.  Parses the "reserve_pub"
+ * EdDSA key of the reserve and the requested "denom_pub" which
+ * specifies the key/value of the coin to be withdrawn, and checks
+ * that the signature "reserve_sig" makes this a valid withdrawl
+ * request from the specified reserve.  If so, the envelope
+ * with the blinded coin "coin_ev" is passed down to execute the
+ * withdrawl operation.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_RESERVE_handler_reserve_withdraw (struct TMH_RequestHandler *rh,
+                                      struct MHD_Connection *connection,
+                                      void **connection_cls,
+                                      const char *upload_data,
+                                      size_t *upload_data_size)
+{
+  json_t *root;
+  struct TALER_WithdrawRequestPS wsrd;
+  int res;
+  struct TALER_DenominationPublicKey denomination_pub;
+  char *blinded_msg;
+  size_t blinded_msg_len;
+  struct TALER_Amount amount;
+  struct TALER_Amount amount_with_fee;
+  struct TALER_Amount fee_withdraw;
+  struct TALER_ReserveSignatureP signature;
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki;
+  struct TMH_KS_StateHandle *ks;
+
+  struct TMH_PARSE_FieldSpecification spec[] = {
+    TMH_PARSE_member_variable ("coin_ev",
+                               (void **) &blinded_msg,
+                               &blinded_msg_len),
+    TMH_PARSE_member_fixed ("reserve_pub",
+                            &wsrd.reserve_pub),
+    TMH_PARSE_member_fixed ("reserve_sig",
+                            &signature),
+    TMH_PARSE_member_denomination_public_key ("denom_pub",
+                                              &denomination_pub),
+    TMH_PARSE_MEMBER_END
+  };
+
+  res = TMH_PARSE_post_json (connection,
+                             connection_cls,
+                             upload_data,
+                             upload_data_size,
+                             &root);
+  if (GNUNET_SYSERR == res)
+    return MHD_NO;
+  if ( (GNUNET_NO == res) || (NULL == root) )
+    return MHD_YES;
+  res = TMH_PARSE_json_data (connection,
+                             root,
+                             spec);
+  json_decref (root);
+  if (GNUNET_OK != res)
+    return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
+  ks = TMH_KS_acquire ();
+  dki = TMH_KS_denomination_key_lookup (ks,
+                                        &denomination_pub,
+					TMH_KS_DKU_WITHDRAW);
+  if (NULL == dki)
+  {
+    TMH_PARSE_release_data (spec);
+    TMH_KS_release (ks);
+    return TMH_RESPONSE_reply_arg_unknown (connection,
+                                           "denom_pub");
+  }
+  TALER_amount_ntoh (&amount,
+                     &dki->issue.properties.value);
+  TALER_amount_ntoh (&fee_withdraw,
+                     &dki->issue.properties.fee_withdraw);
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_amount_add (&amount_with_fee,
+                                   &amount,
+                                   &fee_withdraw));
+  TALER_amount_hton (&wsrd.amount_with_fee,
+                     &amount_with_fee);
+  TALER_amount_hton (&wsrd.withdraw_fee,
+                     &fee_withdraw);
+  TMH_KS_release (ks);
+  /* verify signature! */
+  wsrd.purpose.size = htonl (sizeof (struct TALER_WithdrawRequestPS));
+  wsrd.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_RESERVE_WITHDRAW);
+
+  GNUNET_CRYPTO_rsa_public_key_hash (denomination_pub.rsa_public_key,
+                                     &wsrd.h_denomination_pub);
+  GNUNET_CRYPTO_hash (blinded_msg,
+                      blinded_msg_len,
+                      &wsrd.h_coin_envelope);
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_RESERVE_WITHDRAW,
+                                  &wsrd.purpose,
+                                  &signature.eddsa_signature,
+                                  &wsrd.reserve_pub.eddsa_pub))
+  {
+    TALER_LOG_WARNING ("Client supplied invalid signature for /reserve/withdraw request\n");
+    TMH_PARSE_release_data (spec);
+    return TMH_RESPONSE_reply_signature_invalid (connection,
+                                                 "reserve_sig");
+  }
+  res = TMH_DB_execute_reserve_withdraw (connection,
+                                         &wsrd.reserve_pub,
+                                         &denomination_pub,
+                                         blinded_msg,
+                                         blinded_msg_len,
+                                         &signature);
+  TMH_PARSE_release_data (spec);
+  return res;
+}
+
+/* end of taler-exchange-httpd_reserve.c */
diff --git a/src/exchange/taler-exchange-httpd_reserve.h b/src/exchange/taler-exchange-httpd_reserve.h
new file mode 100644
index 000000000..9a4960066
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_reserve.h
@@ -0,0 +1,73 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_reserve.h
+ * @brief Handle /reserve/ requests
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#ifndef TALER_EXCHANGE_HTTPD_RESERVE_H
+#define TALER_EXCHANGE_HTTPD_RESERVE_H
+
+#include <microhttpd.h>
+#include "taler-exchange-httpd.h"
+
+/**
+ * Handle a "/reserve/status" request.  Parses the
+ * given "reserve_pub" argument (which should contain the
+ * EdDSA public key of a reserve) and then respond with the
+ * status of the reserve.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_RESERVE_handler_reserve_status (struct TMH_RequestHandler *rh,
+                                    struct MHD_Connection *connection,
+                                    void **connection_cls,
+                                    const char *upload_data,
+                                    size_t *upload_data_size);
+
+
+/**
+ * Handle a "/reserve/withdraw" request.  Parses the "reserve_pub"
+ * EdDSA key of the reserve and the requested "denom_pub" which
+ * specifies the key/value of the coin to be withdrawn, and checks
+ * that the signature "reserve_sig" makes this a valid withdrawl
+ * request from the specified reserve.  If so, the envelope
+ * with the blinded coin "coin_ev" is passed down to execute the
+ * withdrawl operation.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_RESERVE_handler_reserve_withdraw (struct TMH_RequestHandler *rh,
+                                      struct MHD_Connection *connection,
+                                      void **connection_cls,
+                                      const char *upload_data,
+                                      size_t *upload_data_size);
+
+#endif
diff --git a/src/exchange/taler-exchange-httpd_responses.c b/src/exchange/taler-exchange-httpd_responses.c
new file mode 100644
index 000000000..d6cf81bb7
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_responses.c
@@ -0,0 +1,1177 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_responses.c
+ * @brief API for generating the various replies of the exchange; these
+ *        functions are called TMH_RESPONSE_reply_ and they generate
+ *        and queue MHD response objects for a given connection.
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler-exchange-httpd_responses.h"
+#include "taler_util.h"
+#include <gnunet/gnunet_util_lib.h>
+#include "taler-exchange-httpd_keystate.h"
+
+
+/**
+ * Add headers we want to return in every response.
+ * Useful for testing, like if we want to always close
+ * connections.
+ *
+ * @param response response to modify
+ */
+void
+TMH_RESPONSE_add_global_headers (struct MHD_Response *response)
+{
+  if (TMH_exchange_connection_close)
+    (void) MHD_add_response_header (response,
+                                    MHD_HTTP_HEADER_CONNECTION,
+                                    "close");
+}
+
+
+/**
+ * Send JSON object as response.
+ *
+ * @param connection the MHD connection
+ * @param json the json object
+ * @param response_code the http response code
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_json (struct MHD_Connection *connection,
+                         const json_t *json,
+                         unsigned int response_code)
+{
+  struct MHD_Response *resp;
+  char *json_str;
+  int ret;
+
+  json_str = json_dumps (json, JSON_INDENT(2));
+  GNUNET_assert (NULL != json_str);
+  resp = MHD_create_response_from_buffer (strlen (json_str), json_str,
+                                          MHD_RESPMEM_MUST_FREE);
+  if (NULL == resp)
+  {
+    free (json_str);
+    GNUNET_break (0);
+    return MHD_NO;
+  }
+  TMH_RESPONSE_add_global_headers (resp);
+  (void) MHD_add_response_header (resp,
+                                  MHD_HTTP_HEADER_CONTENT_TYPE,
+                                  "application/json");
+  ret = MHD_queue_response (connection,
+                            response_code,
+                            resp);
+  MHD_destroy_response (resp);
+  return ret;
+}
+
+
+/**
+ * Function to call to handle the request by building a JSON
+ * reply from a format string and varargs.
+ *
+ * @param connection the MHD connection to handle
+ * @param response_code HTTP response code to use
+ * @param fmt format string for pack
+ * @param ... varargs
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_json_pack (struct MHD_Connection *connection,
+                              unsigned int response_code,
+                              const char *fmt,
+                              ...)
+{
+  json_t *json;
+  va_list argp;
+  int ret;
+  json_error_t jerror;
+
+  va_start (argp, fmt);
+  json = json_vpack_ex (&jerror, 0, fmt, argp);
+  va_end (argp);
+  if (NULL == json)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Failed to pack JSON with format `%s': %s\n",
+                fmt,
+                jerror.text);
+    GNUNET_break (0);
+    return MHD_NO;
+  }
+  ret = TMH_RESPONSE_reply_json (connection,
+                                 json,
+                                 response_code);
+  json_decref (json);
+  return ret;
+}
+
+
+/**
+ * Send a response indicating an invalid argument.
+ *
+ * @param connection the MHD connection to use
+ * @param param_name the parameter that is invalid
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_arg_invalid (struct MHD_Connection *connection,
+                                const char *param_name)
+{
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_BAD_REQUEST,
+                                       "{s:s, s:s}",
+                                       "error", "invalid parameter",
+                                       "parameter", param_name);
+}
+
+
+/**
+ * Send a response indicating an argument refering to a
+ * resource unknown to the exchange (i.e. unknown reserve or
+ * denomination key).
+ *
+ * @param connection the MHD connection to use
+ * @param param_name the parameter that is invalid
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_arg_unknown (struct MHD_Connection *connection,
+                                const char *param_name)
+{
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_NOT_FOUND,
+                                       "{s:s, s:s}",
+                                       "error", "unknown entity referenced",
+                                       "parameter", param_name);
+}
+
+
+/**
+ * Send a response indicating an invalid signature.
+ *
+ * @param connection the MHD connection to use
+ * @param param_name the parameter that is invalid
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_signature_invalid (struct MHD_Connection *connection,
+                                      const char *param_name)
+{
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_UNAUTHORIZED,
+                                       "{s:s, s:s}",
+                                       "error", "invalid signature",
+                                       "parameter", param_name);
+}
+
+
+/**
+ * Send a response indicating a missing argument.
+ *
+ * @param connection the MHD connection to use
+ * @param param_name the parameter that is missing
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_arg_missing (struct MHD_Connection *connection,
+                                const char *param_name)
+{
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_BAD_REQUEST,
+                                       "{ s:s, s:s}",
+                                       "error", "missing parameter",
+                                       "parameter", param_name);
+}
+
+
+/**
+ * Send a response indicating permission denied.
+ *
+ * @param connection the MHD connection to use
+ * @param hint hint about why access was denied
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_permission_denied (struct MHD_Connection *connection,
+                                      const char *hint)
+{
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_FORBIDDEN,
+                                       "{s:s, s:s}",
+                                       "error", "permission denied",
+                                       "hint", hint);
+}
+
+
+/**
+ * Send a response indicating an internal error.
+ *
+ * @param connection the MHD connection to use
+ * @param hint hint about the internal error's nature
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_internal_error (struct MHD_Connection *connection,
+                                   const char *hint)
+{
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_INTERNAL_SERVER_ERROR,
+                                       "{s:s, s:s}",
+                                       "error", "internal error",
+                                       "hint", hint);
+}
+
+
+/**
+ * Send a response indicating an external error.
+ *
+ * @param connection the MHD connection to use
+ * @param hint hint about the error's nature
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_external_error (struct MHD_Connection *connection,
+                                   const char *hint)
+{
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_BAD_REQUEST,
+                                       "{s:s, s:s}",
+                                       "error", "client error",
+                                       "hint", hint);
+}
+
+
+/**
+ * Send a response indicating an error committing a
+ * transaction (concurrent interference).
+ *
+ * @param connection the MHD connection to use
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_commit_error (struct MHD_Connection *connection)
+{
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_BAD_REQUEST,
+                                       "{s:s}",
+                                       "error", "commit failure");
+}
+
+
+/**
+ * Send a response indicating a failure to talk to the Exchange's
+ * database.
+ *
+ * @param connection the MHD connection to use
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_internal_db_error (struct MHD_Connection *connection)
+{
+  return TMH_RESPONSE_reply_internal_error (connection,
+                                            "Failed to connect to database");
+}
+
+
+/**
+ * Send a response indicating that the request was too big.
+ *
+ * @param connection the MHD connection to use
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_request_too_large (struct MHD_Connection *connection)
+{
+  struct MHD_Response *resp;
+  int ret;
+
+  resp = MHD_create_response_from_buffer (0,
+                                          NULL,
+                                          MHD_RESPMEM_PERSISTENT);
+  if (NULL == resp)
+    return MHD_NO;
+  TMH_RESPONSE_add_global_headers (resp);
+  ret = MHD_queue_response (connection,
+                            MHD_HTTP_REQUEST_ENTITY_TOO_LARGE,
+                            resp);
+  MHD_destroy_response (resp);
+  return ret;
+}
+
+
+/**
+ * Send a response indicating that the JSON was malformed.
+ *
+ * @param connection the MHD connection to use
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_invalid_json (struct MHD_Connection *connection)
+{
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_BAD_REQUEST,
+                                       "{s:s}",
+                                       "error",
+                                       "invalid json");
+}
+
+
+/**
+ * Send confirmation of deposit success to client.  This function
+ * will create a signed message affirming the given information
+ * and return it to the client.  By this, the exchange affirms that
+ * the coin had sufficient (residual) value for the specified
+ * transaction and that it will execute the requested deposit
+ * operation with the given wiring details.
+ *
+ * @param connection connection to the client
+ * @param coin_pub public key of the coin
+ * @param h_wire hash of wire details
+ * @param h_contract hash of contract details
+ * @param transaction_id transaction ID
+ * @param timestamp client's timestamp
+ * @param refund_deadline until when this deposit be refunded
+ * @param merchant merchant public key
+ * @param amount_without_fee fraction of coin value to deposit, without the fee
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_deposit_success (struct MHD_Connection *connection,
+                                    const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                                    const struct GNUNET_HashCode *h_wire,
+                                    const struct GNUNET_HashCode *h_contract,
+                                    uint64_t transaction_id,
+                                    struct GNUNET_TIME_Absolute timestamp,
+                                    struct GNUNET_TIME_Absolute refund_deadline,
+                                    const struct TALER_MerchantPublicKeyP *merchant,
+                                    const struct TALER_Amount *amount_without_fee)
+{
+  struct TALER_DepositConfirmationPS dc;
+  struct TALER_ExchangePublicKeyP pub;
+  struct TALER_ExchangeSignatureP sig;
+
+  dc.purpose.purpose = htonl (TALER_SIGNATURE_EXCHANGE_CONFIRM_DEPOSIT);
+  dc.purpose.size = htonl (sizeof (struct TALER_DepositConfirmationPS));
+  dc.h_contract = *h_contract;
+  dc.h_wire = *h_wire;
+  dc.transaction_id = GNUNET_htonll (transaction_id);
+  dc.timestamp = GNUNET_TIME_absolute_hton (timestamp);
+  dc.refund_deadline = GNUNET_TIME_absolute_hton (refund_deadline);
+  TALER_amount_hton (&dc.amount_without_fee,
+                     amount_without_fee);
+  dc.coin_pub = *coin_pub;
+  dc.merchant = *merchant;
+  TMH_KS_sign (&dc.purpose,
+               &pub,
+               &sig);
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_OK,
+                                       "{s:s, s:o, s:o}",
+                                       "status", "DEPOSIT_OK",
+                                       "sig", TALER_json_from_data (&sig,
+                                                                    sizeof (sig)),
+                                       "pub", TALER_json_from_data (&pub,
+                                                                    sizeof (pub)));
+}
+
+
+/**
+ * Compile the transaction history of a coin into a JSON object.
+ *
+ * @param tl transaction history to JSON-ify
+ * @return json representation of the @a rh
+ */
+static json_t *
+compile_transaction_history (const struct TALER_EXCHANGEDB_TransactionList *tl)
+{
+  json_t *details;
+  const char *type;
+  struct TALER_Amount value;
+  json_t *history;
+  const struct TALER_CoinSpendSignatureP *sig;
+  const struct TALER_EXCHANGEDB_TransactionList *pos;
+
+  history = json_array ();
+  for (pos = tl; NULL != pos; pos = pos->next)
+  {
+    switch (pos->type)
+    {
+    case TALER_EXCHANGEDB_TT_DEPOSIT:
+      {
+        struct TALER_DepositRequestPS dr;
+        const struct TALER_EXCHANGEDB_Deposit *deposit = pos->details.deposit;
+
+        type = "DEPOSIT";
+        value = deposit->amount_with_fee;
+        dr.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_DEPOSIT);
+        dr.purpose.size = htonl (sizeof (struct TALER_DepositRequestPS));
+        dr.h_contract = deposit->h_contract;
+        dr.h_wire = deposit->h_wire;
+        dr.timestamp = GNUNET_TIME_absolute_hton (deposit->timestamp);
+        dr.refund_deadline = GNUNET_TIME_absolute_hton (deposit->refund_deadline);
+        dr.transaction_id = GNUNET_htonll (deposit->transaction_id);
+        TALER_amount_hton (&dr.amount_with_fee,
+                           &deposit->amount_with_fee);
+        TALER_amount_hton (&dr.deposit_fee,
+                           &deposit->deposit_fee);
+        dr.merchant = deposit->merchant_pub;
+        dr.coin_pub = deposit->coin.coin_pub;
+        sig = &deposit->csig;
+	/* internal sanity check before we hand out a bogus sig... */
+        if (GNUNET_OK !=
+            GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_DEPOSIT,
+                                        &dr.purpose,
+                                        &sig->eddsa_signature,
+                                        &deposit->coin.coin_pub.eddsa_pub))
+	{
+	  GNUNET_break (0);
+	  json_decref (history);
+	  return NULL;
+	}
+
+        details = TALER_json_from_data (&dr.purpose,
+                                        sizeof (struct TALER_DepositRequestPS));
+        break;
+      }
+    case TALER_EXCHANGEDB_TT_REFRESH_MELT:
+      {
+        struct TALER_RefreshMeltCoinAffirmationPS ms;
+        const struct TALER_EXCHANGEDB_RefreshMelt *melt = pos->details.melt;
+
+        type = "MELT";
+        value = melt->amount_with_fee;
+        ms.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_MELT);
+        ms.purpose.size = htonl (sizeof (struct TALER_RefreshMeltCoinAffirmationPS));
+        ms.session_hash = melt->session_hash;
+        TALER_amount_hton (&ms.amount_with_fee,
+                           &melt->amount_with_fee);
+        TALER_amount_hton (&ms.melt_fee,
+                           &melt->melt_fee);
+        ms.coin_pub = melt->coin.coin_pub;
+        sig = &melt->coin_sig;
+	/* internal sanity check before we hand out a bogus sig... */
+        if (GNUNET_OK !=
+            GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_MELT,
+                                        &ms.purpose,
+                                        &sig->eddsa_signature,
+                                        &melt->coin.coin_pub.eddsa_pub))
+	{
+	  GNUNET_break (0);
+	  json_decref (history);
+	  return NULL;
+	}
+
+        details = TALER_json_from_data (&ms.purpose,
+                                        sizeof (struct TALER_RefreshMeltCoinAffirmationPS));
+      }
+      break;
+    default:
+      GNUNET_assert (0);
+    }
+    json_array_append_new (history,
+                           json_pack ("{s:s, s:o, s:o, s:o}",
+                                      "type", type,
+                                      "amount", TALER_json_from_amount (&value),
+                                      "signature", TALER_json_from_data (sig,
+                                                                         sizeof (struct TALER_CoinSpendSignatureP)),
+                                      "details", details));
+  }
+  return history;
+}
+
+
+/**
+ * Send proof that a /deposit request is invalid to client.  This
+ * function will create a message with all of the operations affecting
+ * the coin that demonstrate that the coin has insufficient value.
+ *
+ * @param connection connection to the client
+ * @param tl transaction list to use to build reply
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_deposit_insufficient_funds (struct MHD_Connection *connection,
+                                               const struct TALER_EXCHANGEDB_TransactionList *tl)
+{
+  json_t *history;
+
+  history = compile_transaction_history (tl);
+  if (NULL == history)
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_FORBIDDEN,
+                                       "{s:s, s:o}",
+                                       "error", "insufficient funds",
+                                       "history", history);
+}
+
+
+/**
+ * Compile the history of a reserve into a JSON object
+ * and calculate the total balance.
+ *
+ * @param rh reserve history to JSON-ify
+ * @param[out] balance set to current reserve balance
+ * @return json representation of the @a rh, NULL on error
+ */
+static json_t *
+compile_reserve_history (const struct TALER_EXCHANGEDB_ReserveHistory *rh,
+                         struct TALER_Amount *balance)
+{
+  struct TALER_Amount deposit_total;
+  struct TALER_Amount withdraw_total;
+  struct TALER_Amount value;
+  json_t *json_history;
+  int ret;
+  const struct TALER_EXCHANGEDB_ReserveHistory *pos;
+  struct TALER_WithdrawRequestPS wr;
+
+  json_history = json_array ();
+  ret = 0;
+  for (pos = rh; NULL != pos; pos = pos->next)
+  {
+    switch (pos->type)
+    {
+    case TALER_EXCHANGEDB_RO_BANK_TO_EXCHANGE:
+      if (0 == ret)
+        deposit_total = pos->details.bank->amount;
+      else
+        if (GNUNET_OK !=
+            TALER_amount_add (&deposit_total,
+                              &deposit_total,
+                              &pos->details.bank->amount))
+        {
+          json_decref (json_history);
+          return NULL;
+        }
+      ret = 1;
+      json_array_append_new (json_history,
+                             json_pack ("{s:s, s:O, s:o}",
+                                        "type", "DEPOSIT",
+                                        "wire", pos->details.bank->wire,
+                                        "amount", TALER_json_from_amount (&pos->details.bank->amount)));
+      break;
+    case TALER_EXCHANGEDB_RO_WITHDRAW_COIN:
+      break;
+    }
+  }
+
+  ret = 0;
+  for (pos = rh; NULL != pos; pos = pos->next)
+  {
+    switch (pos->type)
+    {
+    case TALER_EXCHANGEDB_RO_BANK_TO_EXCHANGE:
+      break;
+    case TALER_EXCHANGEDB_RO_WITHDRAW_COIN:
+      value = pos->details.withdraw->amount_with_fee;
+      if (0 == ret)
+      {
+        withdraw_total = value;
+      }
+      else
+      {
+        if (GNUNET_OK !=
+            TALER_amount_add (&withdraw_total,
+                              &withdraw_total,
+                              &value))
+        {
+          json_decref (json_history);
+          return NULL;
+        }
+      }
+      ret = 1;
+      wr.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_RESERVE_WITHDRAW);
+      wr.purpose.size = htonl (sizeof (struct TALER_WithdrawRequestPS));
+      wr.reserve_pub = pos->details.withdraw->reserve_pub;
+      TALER_amount_hton (&wr.amount_with_fee,
+                         &value);
+      TALER_amount_hton (&wr.withdraw_fee,
+                         &pos->details.withdraw->withdraw_fee);
+      GNUNET_CRYPTO_rsa_public_key_hash (pos->details.withdraw->denom_pub.rsa_public_key,
+                                         &wr.h_denomination_pub);
+      wr.h_coin_envelope = pos->details.withdraw->h_coin_envelope;
+      json_array_append_new (json_history,
+                             json_pack ("{s:s, s:o, s:o, s:o}",
+                                        "type", "WITHDRAW",
+                                        "signature", TALER_json_from_data (&pos->details.withdraw->reserve_sig,
+                                                                           sizeof (struct TALER_ReserveSignatureP)),
+                                        "details", TALER_json_from_data (&wr,
+                                                                         sizeof (wr)),
+                                        "amount", TALER_json_from_amount (&value)));
+      break;
+    }
+  }
+  if (0 == ret)
+  {
+    /* did not encounter any withdraw operations, set to zero */
+    TALER_amount_get_zero (deposit_total.currency,
+                           &withdraw_total);
+  }
+  if (GNUNET_SYSERR ==
+      TALER_amount_subtract (balance,
+                             &deposit_total,
+                             &withdraw_total))
+  {
+    GNUNET_break (0);
+    json_decref (json_history);
+    return NULL;
+  }
+
+  return json_history;
+}
+
+
+/**
+ * Send reserve status information to client.
+ *
+ * @param connection connection to the client
+ * @param rh reserve history to return
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_reserve_status_success (struct MHD_Connection *connection,
+                                           const struct TALER_EXCHANGEDB_ReserveHistory *rh)
+{
+  json_t *json_balance;
+  json_t *json_history;
+  struct TALER_Amount balance;
+
+  json_history = compile_reserve_history (rh,
+                                          &balance);
+  if (NULL == json_history)
+    return TMH_RESPONSE_reply_internal_error (connection,
+                                              "balance calculation failure");
+  json_balance = TALER_json_from_amount (&balance);
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_OK,
+                                       "{s:o, s:o}",
+                                       "balance", json_balance,
+                                       "history", json_history);
+}
+
+
+/**
+ * Send reserve status information to client with the
+ * message that we have insufficient funds for the
+ * requested /reserve/withdraw operation.
+ *
+ * @param connection connection to the client
+ * @param rh reserve history to return
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_reserve_withdraw_insufficient_funds (struct MHD_Connection *connection,
+                                                        const struct TALER_EXCHANGEDB_ReserveHistory *rh)
+{
+  json_t *json_balance;
+  json_t *json_history;
+  struct TALER_Amount balance;
+
+  json_history = compile_reserve_history (rh,
+                                          &balance);
+  if (NULL == json_history)
+    return TMH_RESPONSE_reply_internal_error (connection,
+                                              "balance calculation failure");
+  json_balance = TALER_json_from_amount (&balance);
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_PAYMENT_REQUIRED,
+                                       "{s:s, s:o, s:o}",
+                                       "error", "Insufficient funds",
+                                       "balance", json_balance,
+                                       "history", json_history);
+}
+
+
+/**
+ * Send blinded coin information to client.
+ *
+ * @param connection connection to the client
+ * @param collectable blinded coin to return
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_reserve_withdraw_success (struct MHD_Connection *connection,
+                                          const struct TALER_EXCHANGEDB_CollectableBlindcoin *collectable)
+{
+  json_t *sig_json;
+
+  sig_json = TALER_json_from_rsa_signature (collectable->sig.rsa_signature);
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_OK,
+                                       "{s:o}",
+                                       "ev_sig", sig_json);
+}
+
+
+/**
+ * Send a response for a failed "/refresh/melt" request.  The
+ * transaction history of the given coin demonstrates that the
+ * @a residual value of the coin is below the @a requested
+ * contribution of the coin for the melt.  Thus, the exchange
+ * refuses the melt operation.
+ *
+ * @param connection the connection to send the response to
+ * @param coin_pub public key of the coin
+ * @param coin_value original value of the coin
+ * @param tl transaction history for the coin
+ * @param requested how much this coin was supposed to contribute, including fee
+ * @param residual remaining value of the coin (after subtracting @a tl)
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_refresh_melt_insufficient_funds (struct MHD_Connection *connection,
+                                                    const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                                                    struct TALER_Amount coin_value,
+                                                    struct TALER_EXCHANGEDB_TransactionList *tl,
+                                                    struct TALER_Amount requested,
+                                                    struct TALER_Amount residual)
+{
+  json_t *history;
+
+  history = compile_transaction_history (tl);
+  if (NULL == history)
+    return TMH_RESPONSE_reply_internal_db_error (connection);
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_FORBIDDEN,
+                                       "{s:s, s:o, s:o, s:o, s:o, s:o}",
+                                       "error",
+                                       "insufficient funds",
+                                       "coin_pub",
+                                       TALER_json_from_data (coin_pub,
+                                                             sizeof (struct TALER_CoinSpendPublicKeyP)),
+                                       "original_value",
+                                       TALER_json_from_amount (&coin_value),
+                                       "residual_value",
+                                       TALER_json_from_amount (&residual),
+                                       "requested_value",
+                                       TALER_json_from_amount (&requested),
+                                       "history",
+                                       history);
+}
+
+
+/**
+ * Send a response to a "/refresh/melt" request.
+ *
+ * @param connection the connection to send the response to
+ * @param session_hash hash of the refresh session
+ * @param noreveal_index which index will the client not have to reveal
+ * @return a MHD status code
+ */
+int
+TMH_RESPONSE_reply_refresh_melt_success (struct MHD_Connection *connection,
+                                         const struct GNUNET_HashCode *session_hash,
+                                         uint16_t noreveal_index)
+{
+  struct TALER_RefreshMeltConfirmationPS body;
+  struct TALER_ExchangePublicKeyP pub;
+  struct TALER_ExchangeSignatureP sig;
+  json_t *sig_json;
+
+  body.purpose.size = htonl (sizeof (struct TALER_RefreshMeltConfirmationPS));
+  body.purpose.purpose = htonl (TALER_SIGNATURE_EXCHANGE_CONFIRM_MELT);
+  body.session_hash = *session_hash;
+  body.noreveal_index = htons (noreveal_index);
+  body.reserved = htons (0);
+  TMH_KS_sign (&body.purpose,
+               &pub,
+               &sig);
+  sig_json = TALER_json_from_data (&sig,
+                                   sizeof (sig));
+  GNUNET_assert (NULL != sig_json);
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_OK,
+                                       "{s:i, s:o, s:o}",
+                                       "noreveal_index", (int) noreveal_index,
+                                       "exchange_sig", sig_json,
+                                       "exchange_pub", TALER_json_from_data (&pub,
+                                                                         sizeof (pub)));
+}
+
+
+/**
+ * Send a response for "/refresh/reveal".
+ *
+ * @param connection the connection to send the response to
+ * @param num_newcoins number of new coins for which we reveal data
+ * @param sigs array of @a num_newcoins signatures revealed
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_refresh_reveal_success (struct MHD_Connection *connection,
+                                           unsigned int num_newcoins,
+                                           const struct TALER_DenominationSignature *sigs)
+{
+  int newcoin_index;
+  json_t *root;
+  json_t *obj;
+  json_t *list;
+  int ret;
+
+  list = json_array ();
+  for (newcoin_index = 0; newcoin_index < num_newcoins; newcoin_index++)
+  {
+    obj = json_object ();
+    json_object_set_new (obj,
+			 "ev_sig",
+			 TALER_json_from_rsa_signature (sigs[newcoin_index].rsa_signature));
+    json_array_append_new (list,
+                           obj);
+  }
+  root = json_object ();
+  json_object_set_new (root,
+                       "ev_sigs",
+                       list);
+  ret = TMH_RESPONSE_reply_json (connection,
+                                 root,
+                                 MHD_HTTP_OK);
+  json_decref (root);
+  return ret;
+}
+
+
+/**
+ * Send a response for a failed "/refresh/reveal", where the
+ * revealed value(s) do not match the original commitment.
+ *
+ * @param connection the connection to send the response to
+ * @param mc all information about the original commitment
+ * @param off offset in the array of kappa-commitments where
+ *            the missmatch was detected
+ * @param j index of the coin for which the missmatch was
+ *            detected
+ * @param missmatch_object name of the object that was
+ *            bogus (i.e. "transfer key").
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_refresh_reveal_missmatch (struct MHD_Connection *connection,
+                                             const struct TALER_EXCHANGEDB_MeltCommitment *mc,
+                                             unsigned int off,
+                                             unsigned int j,
+                                             const char *missmatch_object)
+{
+  json_t *info_old;
+  json_t *info_new;
+  json_t *info_commit;
+  json_t *info_links;
+  unsigned int i;
+  unsigned int k;
+
+  info_old = json_array ();
+  for (i=0;i<mc->num_oldcoins;i++)
+  {
+    const struct TALER_EXCHANGEDB_RefreshMelt *rm;
+    json_t *rm_json;
+
+    rm = &mc->melts[i];
+    rm_json = json_object ();
+    json_object_set_new (rm_json,
+                         "coin_sig",
+                         TALER_json_from_data (&rm->coin_sig,
+                                               sizeof (struct TALER_CoinSpendSignatureP)));
+    json_object_set_new (rm_json,
+                         "coin_pub",
+                         TALER_json_from_data (&rm->coin.coin_pub,
+                                               sizeof (struct TALER_CoinSpendPublicKeyP)));
+    json_object_set_new (rm_json,
+                         "melt_amount_with_fee",
+                         TALER_json_from_amount (&rm->amount_with_fee));
+    json_object_set_new (rm_json,
+                         "melt_fee",
+                         TALER_json_from_amount (&rm->melt_fee));
+    json_array_append_new (info_old,
+                           rm_json);
+  }
+  info_new = json_array ();
+  for (i=0;i<mc->num_newcoins;i++)
+  {
+    const struct TALER_DenominationPublicKey *pk;
+
+    pk = &mc->denom_pubs[i];
+    json_array_append_new (info_new,
+                           TALER_json_from_rsa_public_key (pk->rsa_public_key));
+
+  }
+  info_commit = json_array ();
+  info_links = json_array ();
+  for (k=0;k<TALER_CNC_KAPPA;k++)
+  {
+    json_t *info_commit_k;
+    json_t *info_link_k;
+
+    info_commit_k = json_array ();
+    for (i=0;i<mc->num_newcoins;i++)
+    {
+      const struct TALER_EXCHANGEDB_RefreshCommitCoin *cc;
+      json_t *cc_json;
+
+      cc = &mc->commit_coins[k][i];
+      cc_json = json_object ();
+      json_object_set_new (cc_json,
+                           "coin_ev",
+                           TALER_json_from_data (cc->coin_ev,
+                                                 cc->coin_ev_size));
+      json_object_set_new (cc_json,
+                           "coin_priv_enc",
+                           TALER_json_from_data (cc->refresh_link->coin_priv_enc,
+                                                 sizeof (struct TALER_CoinSpendPrivateKeyP)));
+      json_object_set_new (cc_json,
+                           "blinding_key_enc",
+                           TALER_json_from_data (cc->refresh_link->blinding_key_enc,
+                                                 cc->refresh_link->blinding_key_enc_size));
+
+      json_array_append_new (info_commit_k,
+                             cc_json);
+    }
+    json_array_append_new (info_commit,
+                           info_commit_k);
+    info_link_k = json_array ();
+    for (i=0;i<mc->num_oldcoins;i++)
+    {
+      const struct TALER_RefreshCommitLinkP *cl;
+      json_t *cl_json;
+
+      cl = &mc->commit_links[k][i];
+      cl_json = json_object ();
+      json_object_set_new (cl_json,
+                           "transfer_pub",
+                           TALER_json_from_data (&cl->transfer_pub,
+                                                 sizeof (struct TALER_TransferPublicKeyP)));
+      json_object_set_new (cl_json,
+                           "shared_secret_enc",
+                           TALER_json_from_data (&cl->shared_secret_enc,
+                                                 sizeof (struct TALER_EncryptedLinkSecretP)));
+      json_array_append_new (info_link_k,
+                             cl_json);
+    }
+    json_array_append_new (info_links,
+                           info_link_k);
+  }
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_CONFLICT,
+                                       "{s:s, s:i, s:i, s:o, s:o, s:o, s:o, s:s}",
+                                       "error", "commitment violation",
+                                       "offset", (int) off,
+                                       "index", (int) j,
+                                       "oldcoin_infos", info_old,
+                                       "newcoin_infos", info_new,
+                                       "commit_infos", info_commit,
+                                       "link_infos", info_links,
+                                       "object", missmatch_object);
+}
+
+
+/**
+ * Send a response for "/refresh/link".
+ *
+ * @param connection the connection to send the response to
+ * @param num_sessions number of sessions the coin was used in
+ * @param sessions array of @a num_session entries with
+ *                  information for each session
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_refresh_link_success (struct MHD_Connection *connection,
+                                         unsigned int num_sessions,
+                                         const struct TMH_RESPONSE_LinkSessionInfo *sessions)
+{
+  json_t *root;
+  json_t *mlist;
+  int res;
+  unsigned int i;
+
+  mlist = json_array ();
+  for (i=0;i<num_sessions;i++)
+  {
+    const struct TALER_EXCHANGEDB_LinkDataList *pos;
+    json_t *list = json_array ();
+
+    for (pos = sessions[i].ldl; NULL != pos; pos = pos->next)
+    {
+      json_t *obj;
+
+      obj = json_object ();
+      json_object_set_new (obj,
+                           "link_enc",
+                           TALER_json_from_data (pos->link_data_enc->coin_priv_enc,
+                                                 sizeof (struct TALER_CoinSpendPrivateKeyP) +
+                                                 pos->link_data_enc->blinding_key_enc_size));
+      json_object_set_new (obj,
+                           "denom_pub",
+                           TALER_json_from_rsa_public_key (pos->denom_pub.rsa_public_key));
+      json_object_set_new (obj,
+                           "ev_sig",
+                           TALER_json_from_rsa_signature (pos->ev_sig.rsa_signature));
+      json_array_append_new (list,
+                             obj);
+    }
+    root = json_object ();
+    json_object_set_new (root,
+                         "new_coins",
+                         list);
+    json_object_set_new (root,
+                         "transfer_pub",
+                         TALER_json_from_data (&sessions[i].transfer_pub,
+                                               sizeof (struct TALER_TransferPublicKeyP)));
+    json_object_set_new (root,
+                         "secret_enc",
+                         TALER_json_from_data (&sessions[i].shared_secret_enc,
+                                               sizeof (struct TALER_EncryptedLinkSecretP)));
+    json_array_append_new (mlist,
+                           root);
+  }
+  res = TMH_RESPONSE_reply_json (connection,
+                                 mlist,
+                                 MHD_HTTP_OK);
+  json_decref (mlist);
+  return res;
+}
+
+
+/**
+ * A merchant asked for details about a deposit, but
+ * we do not know anything about the deposit. Generate the
+ * 404 reply.
+ *
+ * @param connection connection to the client
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_deposit_unknown (struct MHD_Connection *connection)
+{
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_NOT_FOUND,
+                                       "{s:s}",
+                                       "error", "Deposit unknown");
+}
+
+
+/**
+ * A merchant asked for details about a deposit, but
+ * we did not execute the deposit yet. Generate a 202 reply.
+ *
+ * @param connection connection to the client
+ * @param planned_exec_time planned execution time
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_deposit_pending (struct MHD_Connection *connection,
+				    struct GNUNET_TIME_Absolute planned_exec_time)
+{
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_ACCEPTED,
+                                       "{s:o}",
+                                       "execution_time", TALER_json_from_abs (planned_exec_time));
+}
+
+
+/**
+ * A merchant asked for details about a deposit.  Provide
+ * them. Generates the 200 reply.
+ *
+ * @param connection connection to the client
+ * @param h_contract hash of the contract
+ * @param h_wire hash of wire account details
+ * @param coin_pub public key of the coin
+ * @param coin_contribution how much did the coin we asked about
+ *        contribute to the total transfer value? (deposit value minus fee)
+ * @param transaction_id merchant transaction identifier
+ * @param wtid raw wire transfer identifier
+ * @param exec_time execution time of the wire transfer
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_deposit_wtid (struct MHD_Connection *connection,
+                                 const struct GNUNET_HashCode *h_contract,
+                                 const struct GNUNET_HashCode *h_wire,
+                                 const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                                 const struct TALER_Amount *coin_contribution,
+                                 uint64_t transaction_id,
+				 const struct TALER_WireTransferIdentifierRawP *wtid,
+                                 struct GNUNET_TIME_Absolute exec_time)
+{
+  struct TALER_ConfirmWirePS cw;
+  struct TALER_ExchangePublicKeyP pub;
+  struct TALER_ExchangeSignatureP sig;
+
+  cw.purpose.purpose = htonl (TALER_SIGNATURE_EXCHANGE_CONFIRM_WIRE);
+  cw.purpose.size = htonl (sizeof (struct TALER_ConfirmWirePS));
+  cw.h_wire = *h_wire;
+  cw.h_contract = *h_contract;
+  cw.wtid = *wtid;
+  cw.coin_pub = *coin_pub;
+  cw.transaction_id = GNUNET_htonll (transaction_id);
+  cw.execution_time = GNUNET_TIME_absolute_hton (exec_time);
+  TALER_amount_hton (&cw.coin_contribution,
+                     coin_contribution);
+  TMH_KS_sign (&cw.purpose,
+               &pub,
+               &sig);
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_OK,
+                                       "{s:o, s:o, s:o, s:o, s:o, s:o}",
+                                       "wtid", TALER_json_from_data (wtid,
+                                                                     sizeof (*wtid)),
+                                       "execution_time", TALER_json_from_abs (exec_time),
+                                       "coin_contribution", TALER_json_from_amount (coin_contribution),
+                                       "exchange_sig", TALER_json_from_data (&sig,
+                                                                         sizeof (sig)),
+                                       "exchange_pub", TALER_json_from_data (&pub,
+                                                                         sizeof (pub)));
+}
+
+
+/**
+ * A merchant asked for transaction details about a wire transfer.
+ * Provide them. Generates the 200 reply.
+ *
+ * @param connection connection to the client
+ * @param total total amount that was transferred
+ * @param merchant_pub public key of the merchant
+ * @param h_wire destination account
+ * @param deposits details about the combined deposits
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_wire_deposit_details (struct MHD_Connection *connection,
+                                         const struct TALER_Amount *total,
+                                         const struct TALER_MerchantPublicKeyP *merchant_pub,
+                                         const struct GNUNET_HashCode *h_wire,
+                                         json_t *deposits)
+{
+  /* FIXME: #4135: signing not implemented here */
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_OK,
+                                       "{s:o, s:o, s:o, s:o}",
+                                       "total", TALER_json_from_amount (total),
+                                       "merchant_pub", TALER_json_from_data (merchant_pub,
+                                                                             sizeof (struct TALER_MerchantPublicKeyP)),
+                                       "h_wire", TALER_json_from_data (h_wire,
+                                                                       sizeof (struct GNUNET_HashCode)),
+                                       "deposits", deposits);
+}
+
+
+/* end of taler-exchange-httpd_responses.c */
diff --git a/src/exchange/taler-exchange-httpd_responses.h b/src/exchange/taler-exchange-httpd_responses.h
new file mode 100644
index 000000000..817273a58
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_responses.h
@@ -0,0 +1,469 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+
+/**
+ * @file taler-exchange-httpd_responses.h
+ * @brief API for generating the various replies of the exchange; these
+ *        functions are called TMH_RESPONSE_reply_ and they generate
+ *        and queue MHD response objects for a given connection.
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#ifndef TALER_EXCHANGE_HTTPD_RESPONSES_H
+#define TALER_EXCHANGE_HTTPD_RESPONSES_H
+#include <gnunet/gnunet_util_lib.h>
+#include <jansson.h>
+#include <microhttpd.h>
+#include <pthread.h>
+#include "taler-exchange-httpd.h"
+#include "taler-exchange-httpd_db.h"
+
+/**
+ * Add headers we want to return in every response.
+ * Useful for testing, like if we want to always close
+ * connections.
+ *
+ * @param response response to modify
+ */
+void
+TMH_RESPONSE_add_global_headers (struct MHD_Response *response);
+
+
+/**
+ * Send JSON object as response.
+ *
+ * @param connection the MHD connection
+ * @param json the json object
+ * @param response_code the http response code
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_json (struct MHD_Connection *connection,
+                         const json_t *json,
+                         unsigned int response_code);
+
+
+/**
+ * Function to call to handle the request by building a JSON
+ * reply from a format string and varargs.
+ *
+ * @param connection the MHD connection to handle
+ * @param response_code HTTP response code to use
+ * @param fmt format string for pack
+ * @param ... varargs
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_json_pack (struct MHD_Connection *connection,
+                              unsigned int response_code,
+                              const char *fmt,
+                              ...);
+
+
+/**
+ * Send a response indicating an invalid signature.
+ *
+ * @param connection the MHD connection to use
+ * @param param_name the parameter that is invalid
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_signature_invalid (struct MHD_Connection *connection,
+                                      const char *param_name);
+
+
+/**
+ * Send a response indicating an invalid argument.
+ *
+ * @param connection the MHD connection to use
+ * @param param_name the parameter that is invalid
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_arg_invalid (struct MHD_Connection *connection,
+                                const char *param_name);
+
+
+/**
+ * Send a response indicating an argument refering to a
+ * resource unknown to the exchange (i.e. unknown reserve or
+ * denomination key).
+ *
+ * @param connection the MHD connection to use
+ * @param param_name the parameter that is invalid
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_arg_unknown (struct MHD_Connection *connection,
+                                const char *param_name);
+
+
+/**
+ * Send a response indicating a missing argument.
+ *
+ * @param connection the MHD connection to use
+ * @param param_name the parameter that is missing
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_arg_missing (struct MHD_Connection *connection,
+                                const char *param_name);
+
+
+/**
+ * Send a response indicating permission denied.
+ *
+ * @param connection the MHD connection to use
+ * @param hint hint about why access was denied
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_permission_denied (struct MHD_Connection *connection,
+                                      const char *hint);
+
+
+/**
+ * Send a response indicating an internal error.
+ *
+ * @param connection the MHD connection to use
+ * @param hint hint about the internal error's nature
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_internal_error (struct MHD_Connection *connection,
+                                   const char *hint);
+
+
+/**
+ * Send a response indicating an external error.
+ *
+ * @param connection the MHD connection to use
+ * @param hint hint about the error's nature
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_external_error (struct MHD_Connection *connection,
+                                   const char *hint);
+
+
+/**
+ * Send a response indicating an error committing a
+ * transaction (concurrent interference).
+ *
+ * @param connection the MHD connection to use
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_commit_error (struct MHD_Connection *connection);
+
+
+/**
+ * Send a response indicating a failure to talk to the Exchange's
+ * database.
+ *
+ * @param connection the MHD connection to use
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_internal_db_error (struct MHD_Connection *connection);
+
+
+/**
+ * Send a response indicating that the request was too big.
+ *
+ * @param connection the MHD connection to use
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_request_too_large (struct MHD_Connection *connection);
+
+
+/**
+ * Send a response indicating that the JSON was malformed.
+ *
+ * @param connection the MHD connection to use
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_invalid_json (struct MHD_Connection *connection);
+
+
+/**
+ * Send confirmation of deposit success to client. This function
+ * will create a signed message affirming the given information
+ * and return it to the client.  By this, the exchange affirms that
+ * the coin had sufficient (residual) value for the specified
+ * transaction and that it will execute the requested deposit
+ * operation with the given wiring details.
+ *
+ * @param connection connection to the client
+ * @param coin_pub public key of the coin
+ * @param h_wire hash of wire details
+ * @param h_contract hash of contract details
+ * @param transaction_id transaction ID
+ * @param timestamp client's timestamp
+ * @param refund_deadline until when this deposit be refunded
+ * @param merchant merchant public key
+ * @param amount_without_fee fraction of coin value to deposit (without fee)
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_deposit_success (struct MHD_Connection *connection,
+                                    const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                                    const struct GNUNET_HashCode *h_wire,
+                                    const struct GNUNET_HashCode *h_contract,
+                                    uint64_t transaction_id,
+                                    struct GNUNET_TIME_Absolute timestamp,
+                                    struct GNUNET_TIME_Absolute refund_deadline,
+                                    const struct TALER_MerchantPublicKeyP *merchant,
+                                    const struct TALER_Amount *amount_without_fee);
+
+
+/**
+ * Send proof that a /deposit request is invalid to client.  This
+ * function will create a message with all of the operations affecting
+ * the coin that demonstrate that the coin has insufficient value.
+ *
+ * @param connection connection to the client
+ * @param tl transaction list to use to build reply
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_deposit_insufficient_funds (struct MHD_Connection *connection,
+                                               const struct TALER_EXCHANGEDB_TransactionList *tl);
+
+
+/**
+ * A merchant asked for details about a deposit, but
+ * we do not know anything about the deposit. Generate the
+ * 404 reply.
+ *
+ * @param connection connection to the client
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_deposit_unknown (struct MHD_Connection *connection);
+
+
+/**
+ * A merchant asked for details about a deposit, but
+ * we did not execute the deposit yet. Generate a 202 reply.
+ *
+ * @param connection connection to the client
+ * @param planned_exec_time planned execution time
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_deposit_pending (struct MHD_Connection *connection,
+				    struct GNUNET_TIME_Absolute planned_exec_time);
+
+
+/**
+ * A merchant asked for details about a deposit.  Provide
+ * them. Generates the 200 reply.
+ *
+ * @param connection connection to the client
+ * @param h_contract hash of the contract
+ * @param h_wire hash of wire account details
+ * @param coin_pub public key of the coin
+ * @param coin_contribution contribution of this coin to the total amount transferred
+ * @param transaction_id merchant transaction identifier
+ * @param wtid raw wire transfer identifier
+ * @param exec_time execution time of the wire transfer
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_deposit_wtid (struct MHD_Connection *connection,
+                                 const struct GNUNET_HashCode *h_contract,
+                                 const struct GNUNET_HashCode *h_wire,
+                                 const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                                 const struct TALER_Amount *coin_contribution,
+                                 uint64_t transaction_id,
+				 const struct TALER_WireTransferIdentifierRawP *wtid,
+                                 struct GNUNET_TIME_Absolute exec_time);
+
+
+/**
+ * A merchant asked for transaction details about a wire transfer.
+ * Provide them. Generates the 200 reply.
+ *
+ * @param connection connection to the client
+ * @param total total amount that was transferred
+ * @param merchant_pub public key of the merchant
+ * @param h_wire destination account
+ * @param deposits details about the combined deposits
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_wire_deposit_details (struct MHD_Connection *connection,
+                                         const struct TALER_Amount *total,
+                                         const struct TALER_MerchantPublicKeyP *merchant_pub,
+                                         const struct GNUNET_HashCode *h_wire,
+                                         json_t *deposits);
+
+
+/**
+ * Send reserve status information to client.
+ *
+ * @param connection connection to the client
+ * @param rh reserve history to return
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_reserve_status_success (struct MHD_Connection *connection,
+                                           const struct TALER_EXCHANGEDB_ReserveHistory *rh);
+
+
+/**
+ * Send reserve status information to client with the
+ * message that we have insufficient funds for the
+ * requested /reserve/withdraw operation.
+ *
+ * @param connection connection to the client
+ * @param rh reserve history to return
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_reserve_withdraw_insufficient_funds (struct MHD_Connection *connection,
+                                                        const struct TALER_EXCHANGEDB_ReserveHistory *rh);
+
+
+/**
+ * Send blinded coin information to client.
+ *
+ * @param connection connection to the client
+ * @param collectable blinded coin to return
+ * @return MHD result code
+ */
+int
+TMH_RESPONSE_reply_reserve_withdraw_success (struct MHD_Connection *connection,
+                                             const struct TALER_EXCHANGEDB_CollectableBlindcoin *collectable);
+
+
+/**
+ * Send a confirmation response to a "/refresh/melt" request.
+ *
+ * @param connection the connection to send the response to
+ * @param session_hash hash of the refresh session
+ * @param noreveal_index which index will the client not have to reveal
+ * @return a MHD status code
+ */
+int
+TMH_RESPONSE_reply_refresh_melt_success (struct MHD_Connection *connection,
+                                         const struct GNUNET_HashCode *session_hash,
+                                         uint16_t noreveal_index);
+
+
+/**
+ * Send a response for a failed "/refresh/melt" request.  The
+ * transaction history of the given coin demonstrates that the
+ * @a residual value of the coin is below the @a requested
+ * contribution of the coin for the melt.  Thus, the exchange
+ * refuses the melt operation.
+ *
+ * @param connection the connection to send the response to
+ * @param coin_pub public key of the coin
+ * @param coin_value original value of the coin
+ * @param tl transaction history for the coin
+ * @param requested how much this coin was supposed to contribute
+ * @param residual remaining value of the coin (after subtracting @a tl)
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_refresh_melt_insufficient_funds (struct MHD_Connection *connection,
+                                                    const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                                                    struct TALER_Amount coin_value,
+                                                    struct TALER_EXCHANGEDB_TransactionList *tl,
+                                                    struct TALER_Amount requested,
+                                                    struct TALER_Amount residual);
+
+
+/**
+ * Send a response for "/refresh/reveal".
+ *
+ * @param connection the connection to send the response to
+ * @param num_newcoins number of new coins for which we reveal data
+ * @param sigs array of @a num_newcoins signatures revealed
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_refresh_reveal_success (struct MHD_Connection *connection,
+                                           unsigned int num_newcoins,
+                                           const struct TALER_DenominationSignature *sigs);
+
+
+/**
+ * Send a response for a failed "/refresh/reveal", where the
+ * revealed value(s) do not match the original commitment.
+ *
+ * @param connection the connection to send the response to
+ * @param mc all information about the original commitment
+ * @param off offset in the array of kappa-commitments where
+ *            the missmatch was detected
+ * @param j index of the coin for which the missmatch was
+ *            detected
+ * @param missmatch_object name of the object that was
+ *            bogus (i.e. "transfer key").
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_refresh_reveal_missmatch (struct MHD_Connection *connection,
+                                             const struct TALER_EXCHANGEDB_MeltCommitment *mc,
+                                             unsigned int off,
+                                             unsigned int j,
+                                             const char *missmatch_object);
+
+
+/**
+ * @brief Information for each session a coin was melted into.
+ */
+struct TMH_RESPONSE_LinkSessionInfo
+{
+  /**
+   * Transfer public key of the coin.
+   */
+  struct TALER_TransferPublicKeyP transfer_pub;
+
+  /**
+   * Encrypted shared secret for decrypting the transfer secrets.
+   */
+  struct TALER_EncryptedLinkSecretP shared_secret_enc;
+
+  /**
+   * Linked data of coins being created in the session.
+   */
+  struct TALER_EXCHANGEDB_LinkDataList *ldl;
+
+};
+
+
+/**
+ * Send a response for "/refresh/link".
+ *
+ * @param connection the connection to send the response to
+ * @param num_sessions number of sessions the coin was used in
+ * @param sessions array of @a num_session entries with
+ *                  information for each session
+ * @return a MHD result code
+ */
+int
+TMH_RESPONSE_reply_refresh_link_success (struct MHD_Connection *connection,
+                                         unsigned int num_sessions,
+                                         const struct TMH_RESPONSE_LinkSessionInfo *sessions);
+
+
+#endif
diff --git a/src/exchange/taler-exchange-httpd_test.c b/src/exchange/taler-exchange-httpd_test.c
new file mode 100644
index 000000000..876869d86
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_test.c
@@ -0,0 +1,621 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_test.c
+ * @brief Handle /test requests; parses the POST and JSON and
+ *        checks that the client is binary-compatible
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <gnunet/gnunet_util_lib.h>
+#include <jansson.h>
+#include <microhttpd.h>
+#include "taler_signatures.h"
+#include "taler-exchange-httpd_test.h"
+#include "taler-exchange-httpd_parsing.h"
+#include "taler-exchange-httpd_responses.h"
+
+
+/**
+ * Private key the test module uses for signing.
+ */
+static struct GNUNET_CRYPTO_rsa_PrivateKey *rsa_pk;
+
+
+/**
+ * Handle a "/test/base32" request.  Parses the JSON in the post, runs
+ * the Crockford Base32 decoder on the "input" field in the JSON,
+ * hashes the result and sends the hashed value back as a JSON
+ * string with in Base32 Crockford encoding.  Thus, this API
+ * allows testing the hashing and Crockford encoding/decoding
+ * functions.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_TEST_handler_test_base32 (struct TMH_RequestHandler *rh,
+			      struct MHD_Connection *connection,
+			      void **connection_cls,
+			      const char *upload_data,
+			      size_t *upload_data_size)
+{
+  json_t *json;
+  int res;
+  void *in_ptr;
+  size_t in_ptr_size;
+  struct GNUNET_HashCode hc;
+  struct TMH_PARSE_FieldSpecification spec[] = {
+    TMH_PARSE_member_variable ("input", &in_ptr, &in_ptr_size),
+    TMH_PARSE_MEMBER_END
+  };
+
+  res = TMH_PARSE_post_json (connection,
+                             connection_cls,
+                             upload_data,
+                             upload_data_size,
+                             &json);
+  if (GNUNET_SYSERR == res)
+    return MHD_NO;
+  if ( (GNUNET_NO == res) || (NULL == json) )
+    return MHD_YES;
+  res = TMH_PARSE_json_data (connection,
+			     json,
+			     spec);
+  if (GNUNET_YES != res)
+    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
+  GNUNET_CRYPTO_hash (in_ptr,
+		      in_ptr_size,
+		      &hc);
+  TMH_PARSE_release_data (spec);
+  json_decref (json);
+  return TMH_RESPONSE_reply_json_pack (connection,
+				       MHD_HTTP_OK,
+				       "{s:o}",
+				       "output",
+				       TALER_json_from_data (&hc, sizeof (struct GNUNET_HashCode)));
+}
+
+
+/**
+ * Handle a "/test/encrypt" request.  Parses the JSON in the post,
+ * runs the Crockford Base32 decoder on the "input" field in the JSON,
+ * and encrypts the result with a shared secret derived using the HKDF
+ * function with salt "skey" and IV derived with salt "iv" of the
+ * Crockford Base32-encoded "key_hash" field in the JSON.  The
+ * symmetric encryption is the AES/Twofish double-encryption used in
+ * Taler/GNUnet.  The resulting ciphertext is returned as a Crockford
+ * Base32 encoded JSON string.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_TEST_handler_test_encrypt (struct TMH_RequestHandler *rh,
+			       struct MHD_Connection *connection,
+			       void **connection_cls,
+			       const char *upload_data,
+			       size_t *upload_data_size)
+{
+  json_t *json;
+  int res;
+  struct GNUNET_HashCode key;
+  struct GNUNET_CRYPTO_SymmetricInitializationVector iv;
+  struct GNUNET_CRYPTO_SymmetricSessionKey skey;
+  void *in_ptr;
+  size_t in_ptr_size;
+  struct TMH_PARSE_FieldSpecification spec[] = {
+    TMH_PARSE_member_variable ("input", &in_ptr, &in_ptr_size),
+    TMH_PARSE_member_fixed ("key_hash", &key),
+    TMH_PARSE_MEMBER_END
+  };
+  char *out;
+
+  res = TMH_PARSE_post_json (connection,
+                             connection_cls,
+                             upload_data,
+                             upload_data_size,
+                             &json);
+  if (GNUNET_SYSERR == res)
+    return MHD_NO;
+  if ( (GNUNET_NO == res) || (NULL == json) )
+    return MHD_YES;
+  res = TMH_PARSE_json_data (connection,
+			     json,
+			     spec);
+  json_decref (json);
+  if (GNUNET_YES != res)
+    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
+  GNUNET_assert (GNUNET_YES ==
+		 GNUNET_CRYPTO_kdf (&skey, sizeof (struct GNUNET_CRYPTO_SymmetricSessionKey),
+				    "skey", strlen ("skey"),
+				    &key, sizeof (key),
+				    NULL, 0));
+  GNUNET_assert (GNUNET_YES ==
+		 GNUNET_CRYPTO_kdf (&iv, sizeof (struct GNUNET_CRYPTO_SymmetricInitializationVector),
+				    "iv", strlen ("iv"),
+				    &key, sizeof (key),
+				    NULL, 0));
+  out = GNUNET_malloc (in_ptr_size);
+  GNUNET_break (in_ptr_size ==
+		GNUNET_CRYPTO_symmetric_encrypt (in_ptr,
+						 in_ptr_size,
+						 &skey,
+						 &iv,
+						 out));
+  json = TALER_json_from_data (out,
+			       in_ptr_size);
+  GNUNET_free (out);
+  TMH_PARSE_release_data (spec);
+  return TMH_RESPONSE_reply_json_pack (connection,
+				       MHD_HTTP_OK,
+				       "{s:o}",
+				       "output",
+				       json);
+}
+
+
+/**
+ * Handle a "/test/hkdf" request.  Parses the JSON in the post, runs
+ * the Crockford Base32 decoder on the "input" field in the JSON,
+ * computes `HKDF(input, "salty")` and sends the result back as a JSON
+ * string with in Base32 Crockford encoding.  Thus, this API allows
+ * testing the use of the (H)KDF.  Note that the test fixes the
+ * input and output sizes and the salt (and the hash functions used
+ * by the HKDF), so this is only useful to test the HKDF in the
+ * same way it will be used within Taler/GNUnet.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_TEST_handler_test_hkdf (struct TMH_RequestHandler *rh,
+			    struct MHD_Connection *connection,
+			    void **connection_cls,
+			    const char *upload_data,
+			    size_t *upload_data_size)
+{
+  json_t *json;
+  int res;
+  struct GNUNET_HashCode hc;
+  void *in_ptr;
+  size_t in_ptr_size;
+  struct TMH_PARSE_FieldSpecification spec[] = {
+    TMH_PARSE_member_variable ("input", &in_ptr, &in_ptr_size),
+    TMH_PARSE_MEMBER_END
+  };
+
+  res = TMH_PARSE_post_json (connection,
+                             connection_cls,
+                             upload_data,
+                             upload_data_size,
+                             &json);
+  if (GNUNET_SYSERR == res)
+    return MHD_NO;
+  if ( (GNUNET_NO == res) || (NULL == json) )
+    return MHD_YES;
+  res = TMH_PARSE_json_data (connection,
+			     json,
+			     spec);
+  json_decref (json);
+  if (GNUNET_YES != res)
+    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
+  GNUNET_CRYPTO_kdf (&hc, sizeof (hc),
+		     "salty", strlen ("salty"),
+		     in_ptr,
+		     in_ptr_size,
+		     NULL, 0);
+  TMH_PARSE_release_data (spec);
+  json = TALER_json_from_data (&hc,
+			       sizeof (struct GNUNET_HashCode));
+  return TMH_RESPONSE_reply_json_pack (connection,
+				       MHD_HTTP_OK,
+				       "{s:o}",
+				       "output",
+				       json);
+}
+
+
+/**
+ * Handle a "/test/ecdhe" request.  Parses the JSON in the post, which
+ * must contain a "ecdhe_pub" with a public key and an "ecdhe_priv"
+ * with a private key.  The reply is the resulting JSON is an object
+ * with the field "ecdh_hash" containing a Crockford Base32-encoded
+ * string representing the hash derived via ECDH of the two keys.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_TEST_handler_test_ecdhe (struct TMH_RequestHandler *rh,
+			     struct MHD_Connection *connection,
+			     void **connection_cls,
+			     const char *upload_data,
+			     size_t *upload_data_size)
+{
+  json_t *json;
+  int res;
+  struct GNUNET_CRYPTO_EcdhePublicKey pub;
+  struct GNUNET_CRYPTO_EcdhePrivateKey priv;
+  struct GNUNET_HashCode hc;
+  struct TMH_PARSE_FieldSpecification spec[] = {
+    TMH_PARSE_member_fixed ("ecdhe_pub", &pub),
+    TMH_PARSE_member_fixed ("ecdhe_priv", &priv),
+    TMH_PARSE_MEMBER_END
+  };
+
+  res = TMH_PARSE_post_json (connection,
+                             connection_cls,
+                             upload_data,
+                             upload_data_size,
+                             &json);
+  if (GNUNET_SYSERR == res)
+    return MHD_NO;
+  if ( (GNUNET_NO == res) || (NULL == json) )
+    return MHD_YES;
+  res = TMH_PARSE_json_data (connection,
+			     json,
+			     spec);
+  json_decref (json);
+  if (GNUNET_YES != res)
+    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_ecc_ecdh (&priv,
+			      &pub,
+			      &hc))
+  {
+    TMH_PARSE_release_data (spec);
+    return TMH_RESPONSE_reply_internal_error (connection,
+					      "Failed to perform ECDH");
+  }
+  TMH_PARSE_release_data (spec);
+  return TMH_RESPONSE_reply_json_pack (connection,
+				       MHD_HTTP_OK,
+				       "{s:o}",
+				       "ecdh_hash",
+				       TALER_json_from_data (&hc,
+							     sizeof (hc)));
+}
+
+
+/**
+ * Handle a "/test/eddsa" request.  Parses the JSON in the post,
+ * which must contain a "eddsa_pub" with a public key and an
+ *"eddsa_sig" with the corresponding signature for a purpose
+ * of #TALER_SIGNATURE_CLIENT_TEST_EDDSA.  If the signature is
+ * valid, a reply with a #TALER_SIGNATURE_EXCHANGE_TEST_EDDSA is
+ * returned using the same JSON format.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_TEST_handler_test_eddsa (struct TMH_RequestHandler *rh,
+			     struct MHD_Connection *connection,
+			     void **connection_cls,
+			     const char *upload_data,
+			     size_t *upload_data_size)
+{
+  json_t *json;
+  int res;
+  struct GNUNET_CRYPTO_EddsaPublicKey pub;
+  struct GNUNET_CRYPTO_EddsaSignature sig;
+  struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
+  struct TMH_PARSE_FieldSpecification spec[] = {
+    TMH_PARSE_member_fixed ("eddsa_pub", &pub),
+    TMH_PARSE_member_fixed ("eddsa_sig", &sig),
+    TMH_PARSE_MEMBER_END
+  };
+  struct GNUNET_CRYPTO_EddsaPrivateKey *pk;
+
+  res = TMH_PARSE_post_json (connection,
+                             connection_cls,
+                             upload_data,
+                             upload_data_size,
+                             &json);
+  if (GNUNET_SYSERR == res)
+    return MHD_NO;
+  if ( (GNUNET_NO == res) || (NULL == json) )
+    return MHD_YES;
+  res = TMH_PARSE_json_data (connection,
+			     json,
+			     spec);
+  json_decref (json);
+  if (GNUNET_YES != res)
+    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
+  purpose.size = htonl (sizeof (struct GNUNET_CRYPTO_EccSignaturePurpose));
+  purpose.purpose = htonl (TALER_SIGNATURE_CLIENT_TEST_EDDSA);
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_CLIENT_TEST_EDDSA,
+				  &purpose,
+				  &sig,
+				  &pub))
+  {
+    TMH_PARSE_release_data (spec);
+    return TMH_RESPONSE_reply_signature_invalid (connection,
+						 "eddsa_sig");
+  }
+  TMH_PARSE_release_data (spec);
+  pk = GNUNET_CRYPTO_eddsa_key_create ();
+  purpose.purpose = htonl (TALER_SIGNATURE_EXCHANGE_TEST_EDDSA);
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_eddsa_sign (pk,
+				&purpose,
+				&sig))
+  {
+    GNUNET_free (pk);
+    return TMH_RESPONSE_reply_internal_error (connection,
+					      "Failed to EdDSA-sign");
+  }
+  GNUNET_CRYPTO_eddsa_key_get_public (pk,
+				      &pub);
+  GNUNET_free (pk);
+  return TMH_RESPONSE_reply_json_pack (connection,
+				       MHD_HTTP_OK,
+				       "{s:o, s:o}",
+				       "eddsa_pub",
+				       TALER_json_from_data (&pub,
+							     sizeof (pub)),
+				       "eddsa_sig",
+				       TALER_json_from_data (&sig,
+							     sizeof (sig)));
+}
+
+
+/**
+ * Handle a "/test/rsa/get" request.  Returns the RSA public key
+ * ("rsa_pub") which is used for signing in "/test/rsa/sign".
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_TEST_handler_test_rsa_get (struct TMH_RequestHandler *rh,
+                               struct MHD_Connection *connection,
+                               void **connection_cls,
+                               const char *upload_data,
+                               size_t *upload_data_size)
+{
+  int res;
+  struct GNUNET_CRYPTO_rsa_PublicKey *pub;
+
+  if (NULL == rsa_pk)
+    rsa_pk = GNUNET_CRYPTO_rsa_private_key_create (1024);
+  if (NULL == rsa_pk)
+  {
+    GNUNET_break (0);
+    return TMH_RESPONSE_reply_internal_error (connection,
+					      "Failed to create RSA key");
+  }
+  pub = GNUNET_CRYPTO_rsa_private_key_get_public (rsa_pk);
+  if (NULL == pub)
+  {
+    GNUNET_break (0);
+    return TMH_RESPONSE_reply_internal_error (connection,
+					      "Failed to get public RSA key");
+  }
+  res = TMH_RESPONSE_reply_json_pack (connection,
+				      MHD_HTTP_OK,
+				      "{s:o}",
+				      "rsa_pub",
+				      TALER_json_from_rsa_public_key (pub));
+  GNUNET_CRYPTO_rsa_public_key_free (pub);
+  return res;
+}
+
+
+/**
+ * Handle a "/test/rsa/sign" request.  Parses the JSON in the post, which
+ * must contain an "blind_ev" blinded value.  A a blinded signature
+ * ("rsa_blind_sig") is returned.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_TEST_handler_test_rsa_sign (struct TMH_RequestHandler *rh,
+                                struct MHD_Connection *connection,
+                                void **connection_cls,
+                                const char *upload_data,
+                                size_t *upload_data_size)
+{
+  json_t *json;
+  int res;
+  struct GNUNET_CRYPTO_rsa_Signature *sig;
+  void *in_ptr;
+  size_t in_ptr_size;
+  struct TMH_PARSE_FieldSpecification spec[] = {
+    TMH_PARSE_member_variable ("blind_ev", &in_ptr, &in_ptr_size),
+    TMH_PARSE_MEMBER_END
+  };
+
+  res = TMH_PARSE_post_json (connection,
+                             connection_cls,
+                             upload_data,
+                             upload_data_size,
+                             &json);
+  if (GNUNET_SYSERR == res)
+    return MHD_NO;
+  if ( (GNUNET_NO == res) || (NULL == json) )
+    return MHD_YES;
+  res = TMH_PARSE_json_data (connection,
+			     json,
+			     spec);
+  json_decref (json);
+  if (GNUNET_YES != res)
+    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
+  if (NULL == rsa_pk)
+    rsa_pk = GNUNET_CRYPTO_rsa_private_key_create (1024);
+  if (NULL == rsa_pk)
+  {
+    GNUNET_break (0);
+    TMH_PARSE_release_data (spec);
+    return TMH_RESPONSE_reply_internal_error (connection,
+					      "Failed to create RSA key");
+  }
+  sig = GNUNET_CRYPTO_rsa_sign (rsa_pk,
+				in_ptr,
+				in_ptr_size);
+  if (NULL == sig)
+  {
+    GNUNET_break (0);
+    TMH_PARSE_release_data (spec);
+    return TMH_RESPONSE_reply_internal_error (connection,
+					      "Failed to RSA-sign");
+  }
+  TMH_PARSE_release_data (spec);
+  res = TMH_RESPONSE_reply_json_pack (connection,
+				      MHD_HTTP_OK,
+				      "{s:o}",
+				      "rsa_blind_sig",
+				      TALER_json_from_rsa_signature (sig));
+  GNUNET_CRYPTO_rsa_signature_free (sig);
+  return res;
+}
+
+
+/**
+ * Handle a "/test/transfer" request.  Parses the JSON in the post,
+ * which must contain a "secret_enc" with the encrypted link secret,
+ * a "trans_priv" with the transfer private key, a "coin_pub" with
+ * a coin public key.  A reply with the decrypted "secret" is
+ * returned.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_TEST_handler_test_transfer (struct TMH_RequestHandler *rh,
+				struct MHD_Connection *connection,
+				void **connection_cls,
+				const char *upload_data,
+				size_t *upload_data_size)
+{
+  json_t *json;
+  int res;
+  struct TALER_EncryptedLinkSecretP secret_enc;
+  struct TALER_TransferPrivateKeyP trans_priv;
+  struct TALER_CoinSpendPublicKeyP coin_pub;
+  struct TMH_PARSE_FieldSpecification spec[] = {
+    TMH_PARSE_member_fixed ("secret_enc", &secret_enc),
+    TMH_PARSE_member_fixed ("trans_priv", &trans_priv),
+    TMH_PARSE_member_fixed ("coin_pub", &coin_pub),
+    TMH_PARSE_MEMBER_END
+  };
+  struct TALER_LinkSecretP secret;
+
+  res = TMH_PARSE_post_json (connection,
+                             connection_cls,
+                             upload_data,
+                             upload_data_size,
+                             &json);
+  if (GNUNET_SYSERR == res)
+    return MHD_NO;
+  if ( (GNUNET_NO == res) || (NULL == json) )
+    return MHD_YES;
+  res = TMH_PARSE_json_data (connection,
+			     json,
+			     spec);
+  json_decref (json);
+  if (GNUNET_YES != res)
+    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
+  if (GNUNET_OK !=
+      TALER_link_decrypt_secret (&secret_enc,
+				 &trans_priv,
+				 &coin_pub,
+				 &secret))
+  {
+    TMH_PARSE_release_data (spec);
+    return TMH_RESPONSE_reply_internal_error (connection,
+					      "Failed to decrypt secret");
+  }
+  return TMH_RESPONSE_reply_json_pack (connection,
+				       MHD_HTTP_OK,
+				       "{s:o}",
+				       "secret",
+				       TALER_json_from_data (&secret,
+							     sizeof (secret)));
+}
+
+
+/**
+ * Handle a "/test" request.  Parses the JSON in the post.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_TEST_handler_test (struct TMH_RequestHandler *rh,
+		       struct MHD_Connection *connection,
+		       void **connection_cls,
+		       const char *upload_data,
+		       size_t *upload_data_size)
+{
+  json_t *json;
+  int res;
+
+  res = TMH_PARSE_post_json (connection,
+                             connection_cls,
+                             upload_data,
+                             upload_data_size,
+                             &json);
+  if (GNUNET_SYSERR == res)
+    return MHD_NO;
+  if ( (GNUNET_NO == res) || (NULL == json) )
+    return MHD_YES;
+
+  json_decref (json);
+  return MHD_NO;
+}
+
+
+/* end of taler-exchange-httpd_test.c */
diff --git a/src/exchange/taler-exchange-httpd_test.h b/src/exchange/taler-exchange-httpd_test.h
new file mode 100644
index 000000000..30535f54f
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_test.h
@@ -0,0 +1,225 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_test.h
+ * @brief Handle /test requests
+ * @author Christian Grothoff
+ */
+#ifndef TALER_EXCHANGE_HTTPD_TEST_H
+#define TALER_EXCHANGE_HTTPD_TEST_H
+
+#include <gnunet/gnunet_util_lib.h>
+#include <microhttpd.h>
+#include "taler-exchange-httpd.h"
+
+
+/**
+ * Handle a "/test/base32" request.  Parses the JSON in the post, runs
+ * the Crockford Base32 decoder on the "input" field in the JSON,
+ * hashes the result and sends the hashed value back as a JSON
+ * string with in Base32 Crockford encoding.  Thus, this API
+ * allows testing the hashing and Crockford encoding/decoding
+ * functions.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_TEST_handler_test_base32 (struct TMH_RequestHandler *rh,
+			      struct MHD_Connection *connection,
+			      void **connection_cls,
+			      const char *upload_data,
+			      size_t *upload_data_size);
+
+
+/**
+ * Handle a "/test/encrypt" request.  Parses the JSON in the post,
+ * runs the Crockford Base32 decoder on the "input" field in the JSON,
+ * and encrypts the result with a shared secret derived using the HKDF
+ * function with salt "skey" and IV derived with salt "iv" of the
+ * Crockford Base32-encoded "key_hash" field in the JSON.  The
+ * symmetric encryption is the AES/Twofish double-encryption used in
+ * Taler/GNUnet.  The resulting ciphertext is returned as a Crockford
+ * Base32 encoded JSON string.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_TEST_handler_test_encrypt (struct TMH_RequestHandler *rh,
+			       struct MHD_Connection *connection,
+			       void **connection_cls,
+			       const char *upload_data,
+			       size_t *upload_data_size);
+
+
+/**
+ * Handle a "/test/hkdf" request.  Parses the JSON in the post, runs
+ * the Crockford Base32 decoder on the "input" field in the JSON,
+ * computes `HKDF(input, "salty")` and sends the result back as a JSON
+ * string with in Base32 Crockford encoding.  Thus, this API allows
+ * testing the use of the (H)KDF.  Note that the test fixes the
+ * input and output sizes and the salt (and the hash functions used
+ * by the HKDF), so this is only useful to test the HKDF in the
+ * same way it will be used within Taler/GNUnet.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_TEST_handler_test_hkdf (struct TMH_RequestHandler *rh,
+			    struct MHD_Connection *connection,
+			    void **connection_cls,
+			    const char *upload_data,
+			    size_t *upload_data_size);
+
+
+/**
+ * Handle a "/test/ecdhe" request.  Parses the JSON in the post, which
+ * must contain a "ecdhe_pub" with a public key and an "ecdhe_priv"
+ * with a private key.  The reply is the resulting JSON is an object
+ * with the field "ecdh_hash" containing a Crockford Base32-encoded
+ * string representing the hash derived via ECDH of the two keys.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_TEST_handler_test_ecdhe (struct TMH_RequestHandler *rh,
+			     struct MHD_Connection *connection,
+			     void **connection_cls,
+			     const char *upload_data,
+			     size_t *upload_data_size);
+
+
+/**
+ * Handle a "/test/eddsa" request.  Parses the JSON in the post,
+ * which must contain a "eddsa_pub" with a public key and an
+ *"ecdsa_sig" with the corresponding signature for a purpose
+ * of #TALER_SIGNATURE_CLIENT_TEST_EDDSA.  If the signature is
+ * valid, a reply with a #TALER_SIGNATURE_EXCHANGE_TEST_EDDSA is
+ * returned using the same JSON format.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_TEST_handler_test_eddsa (struct TMH_RequestHandler *rh,
+			     struct MHD_Connection *connection,
+			     void **connection_cls,
+			     const char *upload_data,
+			     size_t *upload_data_size);
+
+
+/**
+ * Handle a "/test/rsa/get" request.  Returns the RSA public key
+ * ("rsa_pub") which is used for signing in "/test/rsa/sign".
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_TEST_handler_test_rsa_get (struct TMH_RequestHandler *rh,
+                               struct MHD_Connection *connection,
+                               void **connection_cls,
+                               const char *upload_data,
+                               size_t *upload_data_size);
+
+
+/**
+ * Handle a "/test/rsa/sign" request.  Parses the JSON in the post, which
+ * must contain an "blind_ev" blinded value.  A a blinded signature
+ * ("rsa_blind_sig") is returned.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_TEST_handler_test_rsa_sign (struct TMH_RequestHandler *rh,
+                                struct MHD_Connection *connection,
+                                void **connection_cls,
+                                const char *upload_data,
+                                size_t *upload_data_size);
+
+
+/**
+ * Handle a "/test/transfer" request.  Parses the JSON in the post,
+ * which must contain a "secret_enc" with the encrypted link secret,
+ * a "trans_priv" with the transfer private key, a "coin_pub" with
+ * a coin public key.  A reply with the decrypted "secret" is
+ * returned.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_TEST_handler_test_transfer (struct TMH_RequestHandler *rh,
+				struct MHD_Connection *connection,
+				void **connection_cls,
+				const char *upload_data,
+				size_t *upload_data_size);
+
+
+/**
+ * Handle a "/test" request.  Parses the JSON in the post.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_TEST_handler_test (struct TMH_RequestHandler *rh,
+		       struct MHD_Connection *connection,
+		       void **connection_cls,
+		       const char *upload_data,
+		       size_t *upload_data_size);
+
+#endif
diff --git a/src/exchange/taler-exchange-httpd_tracking.c b/src/exchange/taler-exchange-httpd_tracking.c
new file mode 100644
index 000000000..afb821cb9
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_tracking.c
@@ -0,0 +1,165 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_tracking.c
+ * @brief Handle wire transfer tracking-related requests
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <gnunet/gnunet_util_lib.h>
+#include <jansson.h>
+#include <microhttpd.h>
+#include <pthread.h>
+#include "taler_signatures.h"
+#include "taler-exchange-httpd_parsing.h"
+#include "taler-exchange-httpd_tracking.h"
+#include "taler-exchange-httpd_responses.h"
+
+
+/**
+ * Handle a "/wire/deposits" request.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_TRACKING_handler_wire_deposits (struct TMH_RequestHandler *rh,
+                                    struct MHD_Connection *connection,
+                                    void **connection_cls,
+                                    const char *upload_data,
+                                    size_t *upload_data_size)
+{
+  struct TALER_WireTransferIdentifierRawP wtid;
+  int res;
+
+  res = TMH_PARSE_mhd_request_arg_data (connection,
+                                        "wtid",
+                                        &wtid,
+                                        sizeof (struct TALER_WireTransferIdentifierRawP));
+  if (GNUNET_SYSERR == res)
+    return MHD_NO; /* internal error */
+  if (GNUNET_NO == res)
+    return MHD_YES; /* parse error */
+  return TMH_DB_execute_wire_deposits (connection,
+                                       &wtid);
+}
+
+
+/**
+ * Check the merchant signature, and if it is valid,
+ * return the wire transfer identifier.
+ *
+ * @param connection the MHD connection to handle
+ * @param tps signed request to execute
+ * @param merchant_pub public key from the merchant
+ * @param merchant_sig signature from the merchant (to be checked)
+ * @param transaction_id transaction ID (in host byte order)
+ * @return MHD result code
+ */
+static int
+check_and_handle_deposit_wtid_request (struct MHD_Connection *connection,
+				       const struct TALER_DepositTrackPS *tps,
+				       struct TALER_MerchantPublicKeyP *merchant_pub,
+				       struct TALER_MerchantSignatureP *merchant_sig,
+				       uint64_t transaction_id)
+{
+  if (GNUNET_OK !=
+      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MERCHANT_DEPOSIT_WTID,
+				  &tps->purpose,
+				  &merchant_sig->eddsa_sig,
+				  &merchant_pub->eddsa_pub))
+  {
+    GNUNET_break_op (0);
+    return TMH_RESPONSE_reply_signature_invalid (connection,
+						 "merchant_sig");
+  }
+  return TMH_DB_execute_deposit_wtid (connection,
+				      &tps->h_contract,
+				      &tps->h_wire,
+				      &tps->coin_pub,
+				      merchant_pub,
+				      transaction_id);
+}
+
+
+/**
+ * Handle a "/deposit/wtid" request.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_TRACKING_handler_deposit_wtid (struct TMH_RequestHandler *rh,
+                                   struct MHD_Connection *connection,
+                                   void **connection_cls,
+                                   const char *upload_data,
+                                   size_t *upload_data_size)
+{
+  int res;
+  json_t *json;
+  struct TALER_DepositTrackPS tps;
+  uint64_t transaction_id;
+  struct TALER_MerchantSignatureP merchant_sig;
+  struct TMH_PARSE_FieldSpecification spec[] = {
+    TMH_PARSE_member_fixed ("H_wire", &tps.h_wire),
+    TMH_PARSE_member_fixed ("H_contract", &tps.h_contract),
+    TMH_PARSE_member_fixed ("coin_pub", &tps.coin_pub),
+    TMH_PARSE_member_uint64 ("transaction_id", &transaction_id),
+    TMH_PARSE_member_fixed ("merchant_pub", &tps.merchant),
+    TMH_PARSE_member_fixed ("merchant_sig", &merchant_sig),
+    TMH_PARSE_MEMBER_END
+  };
+
+  res = TMH_PARSE_post_json (connection,
+                             connection_cls,
+                             upload_data,
+                             upload_data_size,
+                             &json);
+  if (GNUNET_SYSERR == res)
+    return MHD_NO;
+  if ( (GNUNET_NO == res) || (NULL == json) )
+    return MHD_YES;
+  res = TMH_PARSE_json_data (connection,
+                             json,
+                             spec);
+  if (GNUNET_OK != res)
+  {
+    json_decref (json);
+    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
+  }
+  tps.purpose.size = htonl (sizeof (struct TALER_DepositTrackPS));
+  tps.purpose.purpose = htonl (TALER_SIGNATURE_MERCHANT_DEPOSIT_WTID);
+  tps.transaction_id = GNUNET_htonll (transaction_id);
+  res = check_and_handle_deposit_wtid_request (connection,
+					       &tps,
+					       &tps.merchant,
+					       &merchant_sig,
+					       transaction_id);
+  TMH_PARSE_release_data (spec);
+  json_decref (json);
+  return res;
+}
+
+
+/* end of taler-exchange-httpd_tracking.c */
diff --git a/src/exchange/taler-exchange-httpd_tracking.h b/src/exchange/taler-exchange-httpd_tracking.h
new file mode 100644
index 000000000..d77de460a
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_tracking.h
@@ -0,0 +1,65 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_tracking.h
+ * @brief Handle wire transfer tracking-related requests
+ * @author Christian Grothoff
+ */
+#ifndef TALER_EXCHANGE_HTTPD_TRACKING_H
+#define TALER_EXCHANGE_HTTPD_TRACKING_H
+
+#include <gnunet/gnunet_util_lib.h>
+#include <microhttpd.h>
+#include "taler-exchange-httpd.h"
+
+
+/**
+ * Handle a "/wire/deposits" request.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_TRACKING_handler_wire_deposits (struct TMH_RequestHandler *rh,
+                                    struct MHD_Connection *connection,
+                                    void **connection_cls,
+                                    const char *upload_data,
+                                    size_t *upload_data_size);
+
+
+/**
+ * Handle a "/deposit/wtid" request.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_TRACKING_handler_deposit_wtid (struct TMH_RequestHandler *rh,
+                                   struct MHD_Connection *connection,
+                                   void **connection_cls,
+                                   const char *upload_data,
+                                   size_t *upload_data_size);
+
+
+#endif
diff --git a/src/exchange/taler-exchange-httpd_validation.c b/src/exchange/taler-exchange-httpd_validation.c
new file mode 100644
index 000000000..9132e3e02
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_validation.c
@@ -0,0 +1,231 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2016 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+
+/**
+ * @file taler-exchange-httpd_validation.c
+ * @brief helpers for calling the wire plugins to validate addresses
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include <gnunet/gnunet_util_lib.h>
+#include "taler-exchange-httpd_validation.h"
+#include "taler_wire_plugin.h"
+
+
+/**
+ * Information we keep for each plugin.
+ */
+struct Plugin
+{
+
+  /**
+   * We keep plugins in a DLL.
+   */
+  struct Plugin *next;
+
+  /**
+   * We keep plugins in a DLL.
+   */
+  struct Plugin *prev;
+
+  /**
+   * Type of the wireformat.
+   */
+  char *type;
+
+  /**
+   * Pointer to the plugin.
+   */
+  struct TALER_WIRE_Plugin *plugin;
+
+};
+
+/**
+ * Head of DLL of wire plugins.
+ */
+static struct Plugin *wire_head;
+
+/**
+ * Tail of DLL of wire plugins.
+ */
+static struct Plugin *wire_tail;
+
+
+/**
+ * Initialize validation subsystem.
+ *
+ * @param cfg configuration to use
+ * @return #GNUNET_OK on success
+ */
+int
+TMH_VALIDATION_init (const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+  struct Plugin *p;
+  char *wireformats;
+  char *lib_name;
+  const char *token;
+
+  /* Find out list of supported wire formats */
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_string (cfg,
+                                             "exchange",
+                                             "wireformat",
+                                             &wireformats))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               "exchange",
+                               "wireformat");
+    return GNUNET_SYSERR;
+  }
+  for (token = strtok (wireformats,
+                       " ");
+       NULL != token;
+       token = strtok (NULL,
+                       " "))
+  {
+    (void) GNUNET_asprintf (&lib_name,
+                            "libtaler_plugin_wire_%s",
+                            token);
+    p = GNUNET_new (struct Plugin);
+    p->type = GNUNET_strdup (token);
+    p->plugin = GNUNET_PLUGIN_load (lib_name,
+                                    (void *) cfg);
+    if (NULL == p->plugin)
+    {
+      GNUNET_free (p);
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Failed to load plugin %s\n",
+                  lib_name);
+      GNUNET_free (lib_name);
+      TMH_VALIDATION_done ();
+      return GNUNET_SYSERR;
+    }
+    p->plugin->library_name = lib_name;
+    GNUNET_CONTAINER_DLL_insert (wire_head,
+                                 wire_tail,
+                                 p);
+  }
+  GNUNET_free (wireformats);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Shutdown validation subsystem.
+ */
+void
+TMH_VALIDATION_done ()
+{
+  struct Plugin *p;
+  char *lib_name;
+
+  while (NULL != (p = wire_head))
+  {
+    GNUNET_CONTAINER_DLL_remove (wire_head,
+                                 wire_tail,
+                                 p);
+    lib_name = p->plugin->library_name;
+    GNUNET_assert (NULL == GNUNET_PLUGIN_unload (lib_name,
+                                                 p->plugin));
+    GNUNET_free (lib_name);
+    GNUNET_free (p->type);
+    GNUNET_free (p);
+  }
+}
+
+
+/**
+ * Check if the given wire format JSON object is correctly formatted as
+ * a wire address.
+ *
+ * @param wire the JSON wire format object
+ * @return #GNUNET_YES if correctly formatted; #GNUNET_NO if not
+ */
+int
+TMH_json_validate_wireformat (const json_t *wire)
+{
+  const char *stype;
+  json_error_t error;
+  struct Plugin *p;
+
+  if (0 != json_unpack_ex ((json_t *) wire,
+                           &error, 0,
+                           "{s:s}",
+                           "type", &stype))
+  {
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+  for (p=wire_head; NULL != p; p = p->next)
+    if (0 == strcasecmp (p->type,
+                         stype))
+      return p->plugin->wire_validate (wire);
+  return GNUNET_NO;
+}
+
+
+/**
+ * Check if we support the given wire method.
+ *
+ * @param type type of wire method to check
+ * @return #GNUNET_YES if the method is supported
+ */
+int
+TMH_VALIDATION_test_method (const char *type)
+{
+  struct Plugin *p;
+
+  for (p=wire_head;NULL != p;p = p->next)
+    if (0 == strcasecmp (type,
+                         p->type))
+      return GNUNET_YES;
+  return GNUNET_NO;
+}
+
+
+/**
+ * Obtain supported validation methods as a JSON array,
+ * and as a hash.
+ *
+ * @param[out] h set to the hash of the JSON methods
+ * @return JSON array with the supported validation methods
+ */
+json_t *
+TMH_VALIDATION_get_methods (struct GNUNET_HashCode *h)
+{
+  json_t *methods;
+  struct GNUNET_HashContext *hc;
+  const char *wf;
+  struct Plugin *p;
+
+  methods = json_array ();
+  hc = GNUNET_CRYPTO_hash_context_start ();
+  for (p=wire_head;NULL != p;p = p->next)
+  {
+    wf = p->type;
+    json_array_append_new (methods,
+                           json_string (wf));
+    GNUNET_CRYPTO_hash_context_read (hc,
+                                     wf,
+                                     strlen (wf) + 1);
+  }
+  GNUNET_CRYPTO_hash_context_finish (hc,
+                                     h);
+  return methods;
+}
+
+
+/* end of taler-exchange-httpd_validation.c */
diff --git a/src/exchange/taler-exchange-httpd_validation.h b/src/exchange/taler-exchange-httpd_validation.h
new file mode 100644
index 000000000..f41e2ee5f
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_validation.h
@@ -0,0 +1,76 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2016 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+
+/**
+ * @file taler-exchange-httpd_validation.h
+ * @brief helpers for calling the wire plugins to validate addresses
+ * @author Christian Grothoff
+ */
+#ifndef TALER_EXCHANGE_HTTPD_VALIDATION_H
+#define TALER_EXCHANGE_HTTPD_VALIDATION_H
+#include <gnunet/gnunet_util_lib.h>
+#include <jansson.h>
+
+
+/**
+ * Initialize validation subsystem.
+ *
+ * @param cfg configuration to use
+ * @return #GNUNET_OK on success
+ */
+int
+TMH_VALIDATION_init (const struct GNUNET_CONFIGURATION_Handle *cfg);
+
+
+/**
+ * Shutdown validation subsystem.
+ */
+void
+TMH_VALIDATION_done (void);
+
+
+/**
+ * Check if the given wire format JSON object is correctly formatted as
+ * a wire address.
+ *
+ * @param wire the JSON wire format object
+ * @return #GNUNET_YES if correctly formatted; #GNUNET_NO if not
+ */
+int
+TMH_json_validate_wireformat (const json_t *wire);
+
+/**
+ * Check if we support the given wire method.
+ *
+ * @param type type of wire method to check
+ * @return #GNUNET_YES if the method is supported
+ */
+int
+TMH_VALIDATION_test_method (const char *type);
+
+
+/**
+ * Obtain supported validation methods as a JSON array,
+ * and as a hash.
+ *
+ * @param[out] h set to the hash of the JSON methods
+ * @return JSON array with the supported validation methods
+ */
+json_t *
+TMH_VALIDATION_get_methods (struct GNUNET_HashCode *h);
+
+
+#endif
diff --git a/src/exchange/taler-exchange-httpd_wire.c b/src/exchange/taler-exchange-httpd_wire.c
new file mode 100644
index 000000000..ba763b64d
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_wire.c
@@ -0,0 +1,220 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_wire.c
+ * @brief Handle /wire requests
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler-exchange-httpd_keystate.h"
+#include "taler-exchange-httpd_responses.h"
+#include "taler-exchange-httpd_validation.h"
+#include "taler-exchange-httpd_wire.h"
+#include <jansson.h>
+
+/**
+ * Handle a "/wire" request.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_WIRE_handler_wire (struct TMH_RequestHandler *rh,
+                       struct MHD_Connection *connection,
+                       void **connection_cls,
+                       const char *upload_data,
+                       size_t *upload_data_size)
+{
+  struct TALER_ExchangeWireSupportMethodsPS wsm;
+  struct TALER_ExchangePublicKeyP pub;
+  struct TALER_ExchangeSignatureP sig;
+  json_t *methods;
+
+  wsm.purpose.size = htonl (sizeof (wsm));
+  wsm.purpose.purpose = htonl (TALER_SIGNATURE_EXCHANGE_WIRE_TYPES);
+  methods = TMH_VALIDATION_get_methods (&wsm.h_wire_types);
+  TMH_KS_sign (&wsm.purpose,
+               &pub,
+               &sig);
+  return TMH_RESPONSE_reply_json_pack (connection,
+                                       MHD_HTTP_OK,
+                                       "{s:o, s:o, s:o}",
+                                       "methods", methods,
+                                       "sig", TALER_json_from_data (&sig,
+                                                                    sizeof (sig)),
+                                       "pub", TALER_json_from_data (&pub,
+                                                                    sizeof (pub)));
+}
+
+
+/**
+ * Handle a "/wire/test" request.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_WIRE_handler_wire_test (struct TMH_RequestHandler *rh,
+                            struct MHD_Connection *connection,
+                            void **connection_cls,
+                            const char *upload_data,
+                            size_t *upload_data_size)
+{
+  struct MHD_Response *response;
+  int ret;
+  char *wire_test_redirect;
+
+  response = MHD_create_response_from_buffer (0, NULL,
+                                              MHD_RESPMEM_PERSISTENT);
+  if (NULL == response)
+  {
+    GNUNET_break (0);
+    return MHD_NO;
+  }
+  TMH_RESPONSE_add_global_headers (response);
+  if (GNUNET_NO == TMH_VALIDATION_test_method ("test"))
+  {
+    /* Return 501: not implemented */
+    ret = MHD_queue_response (connection,
+			      MHD_HTTP_NOT_IMPLEMENTED,
+			      response);
+    MHD_destroy_response (response);
+    return ret;
+  }
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_string (cfg,
+					     "exchange-wire-test",
+					     "REDIRECT_URL",
+					     &wire_test_redirect))
+  {
+    /* oopsie, configuration error */
+    MHD_destroy_response (response);
+    return TMH_RESPONSE_reply_internal_error (connection,
+					      "REDIRECT_URL not configured");
+  }
+  MHD_add_response_header (response,
+                           MHD_HTTP_HEADER_LOCATION,
+                           wire_test_redirect);
+  GNUNET_free (wire_test_redirect);
+  ret = MHD_queue_response (connection,
+                            rh->response_code,
+                            response);
+  MHD_destroy_response (response);
+  return ret;
+}
+
+
+/**
+ * Handle a "/wire/sepa" request.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_WIRE_handler_wire_sepa (struct TMH_RequestHandler *rh,
+			    struct MHD_Connection *connection,
+			    void **connection_cls,
+			    const char *upload_data,
+			    size_t *upload_data_size)
+{
+  struct MHD_Response *response;
+  int ret;
+  char *sepa_wire_file;
+  int fd;
+  struct stat sbuf;
+
+  if (GNUNET_NO == TMH_VALIDATION_test_method ("sepa"))
+  {
+    /* Return 501: not implemented */
+    response = MHD_create_response_from_buffer (0, NULL,
+                                                MHD_RESPMEM_PERSISTENT);
+    if (NULL == response)
+    {
+      GNUNET_break (0);
+      return MHD_NO;
+    }
+    TMH_RESPONSE_add_global_headers (response);
+    ret = MHD_queue_response (connection,
+			      MHD_HTTP_NOT_IMPLEMENTED,
+			      response);
+    MHD_destroy_response (response);
+    return ret;
+  }
+  /* Fetch reply */
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_filename (cfg,
+                                               "exchange-wire-sepa",
+                                               "SEPA_RESPONSE_FILE",
+                                               &sepa_wire_file))
+  {
+    return TMH_RESPONSE_reply_internal_error (connection,
+					      "SEPA_RESPONSE_FILE not configured");
+  }
+  fd = open (sepa_wire_file,
+	     O_RDONLY);
+  if (-1 == fd)
+  {
+    GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
+			      "open",
+			      sepa_wire_file);
+    GNUNET_free (sepa_wire_file);
+    return TMH_RESPONSE_reply_internal_error (connection,
+					      "Failed to open SEPA_RESPONSE_FILE");
+  }
+  if (0 != fstat (fd, &sbuf))
+  {
+    GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
+			      "fstat",
+			      sepa_wire_file);
+    (void) close (fd);
+    GNUNET_free (sepa_wire_file);
+    return TMH_RESPONSE_reply_internal_error (connection,
+					      "Failed to open SEPA_RESPONSE_FILE");
+  }
+  response = MHD_create_response_from_fd ((size_t) sbuf.st_size,
+					  fd);
+  GNUNET_free (sepa_wire_file);
+  if (NULL == response)
+  {
+    (void) close (fd);
+    GNUNET_break (0);
+    return MHD_NO;
+  }
+  TMH_RESPONSE_add_global_headers (response);
+  if (NULL != rh->mime_type)
+    (void) MHD_add_response_header (response,
+                                    MHD_HTTP_HEADER_CONTENT_TYPE,
+                                    rh->mime_type);
+  ret = MHD_queue_response (connection,
+                            rh->response_code,
+                            response);
+  MHD_destroy_response (response);
+  return ret;
+}
+
+/* end of taler-exchange-httpd_wire.c */
diff --git a/src/exchange/taler-exchange-httpd_wire.h b/src/exchange/taler-exchange-httpd_wire.h
new file mode 100644
index 000000000..dc6dcc0f4
--- /dev/null
+++ b/src/exchange/taler-exchange-httpd_wire.h
@@ -0,0 +1,82 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file taler-exchange-httpd_wire.h
+ * @brief Handle /wire requests
+ * @author Christian Grothoff
+ */
+#ifndef TALER_EXCHANGE_HTTPD_WIRE_H
+#define TALER_EXCHANGE_HTTPD_WIRE_H
+
+#include <gnunet/gnunet_util_lib.h>
+#include <microhttpd.h>
+#include "taler-exchange-httpd.h"
+
+
+/**
+ * Handle a "/wire" request.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+  */
+int
+TMH_WIRE_handler_wire (struct TMH_RequestHandler *rh,
+                       struct MHD_Connection *connection,
+                       void **connection_cls,
+                       const char *upload_data,
+                       size_t *upload_data_size);
+
+
+/**
+ * Handle a "/wire/test" request.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_WIRE_handler_wire_test (struct TMH_RequestHandler *rh,
+                            struct MHD_Connection *connection,
+                            void **connection_cls,
+                            const char *upload_data,
+                            size_t *upload_data_size);
+
+
+/**
+ * Handle a "/wire/sepa" request.
+ *
+ * @param rh context of the handler
+ * @param connection the MHD connection to handle
+ * @param[in,out] connection_cls the connection's closure (can be updated)
+ * @param upload_data upload data
+ * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
+ * @return MHD result code
+ */
+int
+TMH_WIRE_handler_wire_sepa (struct TMH_RequestHandler *rh,
+			    struct MHD_Connection *connection,
+			    void **connection_cls,
+			    const char *upload_data,
+			    size_t *upload_data_size);
+
+#endif
diff --git a/src/mint/test-mint-home/master.priv b/src/exchange/test-exchange-home/master.priv
index 394926938..394926938 100644
--- a/src/mint/test-mint-home/master.priv
+++ b/src/exchange/test-exchange-home/master.priv
diff --git a/src/exchange/test_taler_exchange_httpd.sh b/src/exchange/test_taler_exchange_httpd.sh
new file mode 100644
index 000000000..c8df7cb9f
--- /dev/null
+++ b/src/exchange/test_taler_exchange_httpd.sh
@@ -0,0 +1,35 @@
+#!/bin/bash
+#
+# This file is part of TALER
+# Copyright (C) 2015 GNUnet e.V.
+#
+#  TALER is free software; you can redistribute it and/or modify it under the
+#  terms of the GNU Affero General Public License as published by the Free Software
+#  Foundation; either version 3, or (at your option) any later version.
+#
+#  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+#  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+#
+#  You should have received a copy of the GNU Affero General Public License along with
+#  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+#
+#
+# This script uses 'curl' to POST various ill-formed requests to the
+# taler-exchange-httpd.  Basically, the goal is to make sure that the
+# HTTP server survives (and produces the 'correct' error code).
+#
+# We read the JSON snippets to POST from test_taler_exchange_httpd.data
+#
+# Setup keys.
+taler-exchange-keyup -d test-exchange-home -m test-exchange-home/master.priv
+# Run Exchange HTTPD (in background)
+taler-exchange-httpd -d test-exchange-home &
+# Give HTTP time to start
+sleep 2
+# Run test...
+cat test_taler_exchange_httpd.data | grep -v ^\# | awk '{ print "curl -d '\''" $2 "'\'' http://localhost:8081"$1 }' | bash
+# Stop HTTP server
+kill -TERM %%
+# FIXME: not sure this is the 'correct' return code...
+exit $?
diff --git a/src/exchange/test_taler_exchange_httpd_afl.sh b/src/exchange/test_taler_exchange_httpd_afl.sh
new file mode 100644
index 000000000..48beda722
--- /dev/null
+++ b/src/exchange/test_taler_exchange_httpd_afl.sh
@@ -0,0 +1,41 @@
+#!/bin/bash
+#
+# This file is part of TALER
+# Copyright (C) 2015 GNUnet e.V.
+#
+#  TALER is free software; you can redistribute it and/or modify it under the
+#  terms of the GNU Affero General Public License as published by the Free Software
+#  Foundation; either version 3, or (at your option) any later version.
+#
+#  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+#  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+#
+#  You should have received a copy of the GNU Affero General Public License along with
+#  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+#
+#
+# This script uses 'curl' to POST various ill-formed requests to the
+# taler-exchange-httpd.  Basically, the goal is to make sure that the
+# HTTP server survives (and produces the 'correct' error code).
+#
+# We read the JSON snippets from afl-tests/
+#
+PREFIX=
+# Uncomment this line to run with valgrind...
+PREFIX="valgrind --leak-check=yes --log-file=valgrind.%p"
+# Setup keys.
+taler-exchange-keyup -d test-exchange-home -m test-exchange-home/master.priv
+# Setup database (just to be sure)
+taler-exchange-dbinit -d test-exchange-home &> /dev/null || true
+# Only log hard errors, we expect lots of warnings...
+export GNUNET_FORCE_LOG="taler-exchange-httpd;;;;ERROR/libmicrohttpd;;;;ERROR/util;;;;ERROR/"
+# Run test...
+for n in afl-tests/*
+do
+  echo -n "Test $n "
+  $PREFIX taler-exchange-httpd -d test-exchange-home/ -t 1 -f $n -C > /dev/null || { echo "FAIL!"; }
+#  $PREFIX taler-exchange-httpd -d test-exchange-home/ -t 1 -f $n -C > /dev/null || { echo "FAIL!"; exit 1; }
+  echo "OK"
+done
+exit 0
diff --git a/src/exchange/test_taler_mint_httpd.data b/src/exchange/test_taler_mint_httpd.data
new file mode 100644
index 000000000..43aa4ff05
--- /dev/null
+++ b/src/exchange/test_taler_mint_httpd.data
@@ -0,0 +1,48 @@
+# This file is part of TALER
+# Copyright (C) 2015 GNUnet e.V.
+#
+#  TALER is free software; you can redistribute it and/or modify it under the
+#  terms of the GNU Affero General Public License as published by the Free Software
+#  Foundation; either version 3, or (at your option) any later version.
+#
+#  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+#  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+#
+#  You should have received a copy of the GNU Affero General Public License along with
+#  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+#
+#
+# This is a resource file for test_taler_exchange_httpd.sh.
+# Lines starting with '#' (must be first character in line) are comments.
+#
+# Each non-comment line must contain two strings, the first being the
+# URL on the HTTP serve which a HTTP POST request should be made out
+# two, followed by the JSON data to POST to the server.
+#
+# Note that neither element may contain any spaces!
+#
+#
+# Bad amount:
+/admin/add/incoming {"reserve_pub":"7RZBZ86677QMASD2KAYGEPD246C7B7RC6P101FNTG6ZK8X61A620","amount":"1","execution_date":"\/Date(1435934428788)\/","wire":{"empty":"empty"}}
+#
+# Bad wire format:
+/admin/add/incoming {"reserve_pub":"6VRFYZRVHJ434BV3J018MS6H7Q1V5Q6YECNMEF9G4WKB8QJQCAX0","amount":{"currency":"EUR","value":10,"fraction":3},"execution_date":"\/Date(1436258333286)\/","wire":{"empty":"empty"}}
+#
+# Malformed JSON (ill-balanced quotes around 'amount')
+/admin/add/incoming {"reserve_pub":"BSEFVVNZ4C3724BPVKTJMQMD73HQREA5FWSS1C1BZ36ZFF2WBTK0",amount":{"currency":"EUR","value":5,"fraction":3},"execution_date":"\/Date(1436271156447)\/","wire":{"type":"test","IBAN":0,"name":"Jack","BIC":999,"edate":"\/Date(1436271156447)\/","r":50}}
+#
+# Bad amount (value not a string)
+/admin/add/incoming {"reserve_pub":"BSEFVVNZ4C3724BPVKTJMQMD73HQREA5FWSS1C1BZ36ZFF2WBTK0","amount":{"currency":"EUR","value":"5","fraction":3},"execution_date":"\/Date(1436271156447)\/","wire":{"type":"test","IBAN":0,"name":"Jack","BIC":999,"edate":"\/Date(1436271156447)\/","r":50}}
+#
+# Bad amount (overall amount is a string)
+/admin/add/incoming {"reserve_pub":"BSEFVVNZ4C3724BPVKTJMQMD73HQREA5FWSS1C1BZ36ZFF2WBTK0","amount":"{\"currency\":\"EUR\",\"value\":5,\"fraction\":3}","execution_date":"\/Date(1436271156447)\/","wire":{"type":"test"}}
+#
+# Bogus denomination key
+/deposit {"f":{"currency":"EUR","value":5,"fraction":0},"H_contract":"NRT9E07FYT147V4VCDG0102P0YX0FZ11ZRG90F4X1HDV95M0J64ZVE4XQGNN9MJ3B5K3JX6TJ181KNGRYSZSTYZ5PQHBM1F9QKQ5B50","wire":{"bank":"dest bank","type":"TEST","account":42},"timestamp":"/Date(1436823947)/","coin_pub":"2KCPBGZ77VGJT4DG99EZAY0GQ5TJ89DF53FWYR5RFRTK0CCXRMFG","denom_pub":"51B7ARKCD5HJTTV5F4G0M818E9SP280A40G2GVH04CR30E9S6GVK2DHM8S234C236CR32C9N8RW44E9M712KAH1R60VM2CJ16RT3GGA18RR36CA575144DJ58CTK0E9M8D2M2E9S8GTKGH1Q8S0KACT174S3AD2670R4ADJ664W32C1N8N23CHA58MSK6DJ26WSMAD1P8H132CHP8GWKAG9K8RS46GJ6890M6GT28GSK4GJ66X2KCCA168RM4GA67113GDA28RR4AGA36RVK6GA460VKJDT58CVK6HA488R48E9R6D2KEH258N246HHJ850K4H9R8N0KEC9N68SM2EA48RR3JEA284SM6C9M6D130D228MSK6H1J6MSKCH1K8CR38CJ48MV36GJ38513CE9P60TM6CA56D1K8HHQ75244DA26WW4CG9M8MW3JE9M7133JGH354520818CMG26C1H60R30C935452081918G2J2G0","coin_sig":"W1TDFCSW5XQX9ZF4QPVP3JAJFYA7G4X6SY2B49KRNTDMA685M9YNFETV4610RFKZMSQ3RBRCYBJQH1ZQSMTDMW9W8X6C9SGPCA5ST0R","H_wire":"YQED9FDYPKK2QQYB3FS19Y15ZMKBAXJP2C73CXASAF1KM6ZYY723TEJ3HBR6D864A7X5W58G92QJ0A9PFMZNB81ZP9NJAQQCCABM4RG","ub_sig":"51SPJSSDESGPR80A40M74WV140520818ECG26DSQ8913AC1S7513EC9G6914AE228H236HHR68VKCCSK650MAGSM6GV3GCHP6D330H1R8GVKJD9P68W46H9Q8GVK8HA6752M2CSN8N248DHJ8H346E9J8RS4CDA28D33ECJ38S33JC9R6MRM8D9G74WM8HA668T44H1N6RT44GHS8CSK8H1G6D346C9J6CS3EC1N8H2M4HA38CSK2D246CW4CD1P70VMAD1Q891K8H1M64TK6C258MRM6G9R88RM6E2488WK2CSQ6GW3GH9N64RKGH2375136GA66533GCSJ65344CHH84W38HHP75330DA58RSKJCJ364SK0C1R8GVK6DSP61134HA48GT4CE1J6MW36C9G891K2GT68GTMCCSQ890M8E1P88R44DA174VK4E135452081918G2J2G0","transaction_id":1,"merchant_pub":"4032W2ZXFW000KRJQDH3CZR00000000004000030P6YG1NR50000","refund_deadline":"/Date(0)/"}
+#
+# missing coin_ev argument
+/withdraw/sign {"denom_pub":"51R7ARKCD5HJTTV5F4G0M818E9SP280A40G2GVH04CR30E9S6GVK2DHM8S234C236CR32C9N8RW44E9M712KAH1R60VM2CJ16RT3GGA18RR36CA575144DJ58CTK0E9M8D2M2E9S8GTKGH1Q8S0KACT174S3AD2670R4ADJ664W32C1N8N23CHA58MSK6DJ26WSMAD1P8H132CHP8GWKAG9K8RS46GJ6890M6GT28GSK4GJ66X2KCCA168RM4GA67113GDA28RR4AGA36RVK6GA460VKJDT58CVK6HA488R48E9R6D2KEH258N246HHJ850K4H9R8N0KEC9N68SM2EA48RR3JEA284SM6C9M6D130D228MSK6H1J6MSKCH1K8CR38CJ48MV36GJ38513CE9P60TM6CA56D1K8HHQ75244DA26WW4CG9M8MW3JE9M7133JGH354520818CMG26C1H60R30C935452081918G2J2G0","#oin_ev":"7DPN42W14BWWD2NWNDYP086276CFV0H8VEV43NFWQGZ3Y8WVR5R5HCN8THX43Z61TFN3CH9N6X5Q0P0T9NF2G8ZWBH8KXEQFQ973CMDDHF1FSE2G9289AB9ERHM8X222VB2WS733X36P8EMG4D3T1N2JHFP530C9RPEAPHDQXZABB6CJ63YD0581JVRY365HHF20RW3BNVKXP","reserve_sig":"VPKYWKGE6FB172XX222N1J0TAEXQE6VERN5X4ANJ0D9K1E7JAX01CPR1PT51SKK5JD72H1GRJ0S2ZQSKN22ZBEGKS77GMT6BF6DD030","reserve_pub":"FN7ARB2MJH2EDMMVT2985Y141YTCE503FS27BTNQ6JSCG3GMBJDG"}
+#
+# malformed coin_ev argument
+/withdraw/sign {"denom_pub":"51R7ARKCD5HJTTV5F4G0M818E9SP280A40G2GVH04CR30E9S6GVK2DHM8S234C236CR32C9N8RW44E9M712KAH1R60VM2CJ16RT3GGA18RR36CA575144DJ58CTK0E9M8D2M2E9S8GTKGH1Q8S0KACT174S3AD2670R4ADJ664W32C1N8N23CHA58MSK6DJ26WSMAD1P8H132CHP8GWKAG9K8RS46GJ6890M6GT28GSK4GJ66X2KCCA168RM4GA67113GDA28RR4AGA36RVK6GA460VKJDT58CVK6HA488R48E9R6D2KEH258N246HHJ850K4H9R8N0KEC9N68SM2EA48RR3JEA284SM6C9M6D130D228MSK6H1J6MSKCH1K8CR38CJ48MV36GJ38513CE9P60TM6CA56D1K8HHQ75244DA26WW4CG9M8MW3JE9M7133JGH354520818CMG26C1H60R30C935452081918G2J2G0","coin_ev":"'DPN42W14BWWD2NWNDYP086276CFV0H8VEV43NFWQGZ3Y8WVR5R5HCN8THX43Z61TFN3CH9N6X5Q0P0T9NF2G8ZWBH8KXEQFQ973CMDDHF1FSE2G9289AB9ERHM8X222VB2WS733X36P8EMG4D3T1N2JHFP530C9RPEAPHDQXZABB6CJ63YD0581JVRY365HHF20RW3BNVKXP","reserve_sig":"VPKYWKGE6FB172XX222N1J0TAEXQE6VERN5X4ANJ0D9K1E7JAX01CPR1PT51SKK5JD72H1GRJ0S2ZQSKN22ZBEGKS77GMT6BF6DD030","reserve_pub":"FN7ARB2MJH2EDMMVT2985Y141YTCE503FS27BTNQ6JSCG3GMBJDG"}
diff --git a/src/exchangedb/Makefile.am b/src/exchangedb/Makefile.am
new file mode 100644
index 000000000..d56d6676a
--- /dev/null
+++ b/src/exchangedb/Makefile.am
@@ -0,0 +1,110 @@
+# This Makefile.am is in the public domain
+AM_CPPFLAGS = -I$(top_srcdir)/src/include -I$(top_srcdir)/src/pq/ $(POSTGRESQL_CPPFLAGS)
+
+if USE_COVERAGE
+  AM_CFLAGS = --coverage -O0
+  XLIB = -lgcov
+endif
+
+plugindir = $(libdir)/taler
+
+if HAVE_POSTGRESQL
+plugin_LTLIBRARIES = \
+  libtaler_plugin_exchangedb_postgres.la
+endif
+
+EXTRA_DIST = \
+  plugin_exchangedb_common.c \
+  test-exchange-db-postgres.conf
+
+libtaler_plugin_exchangedb_postgres_la_SOURCES = \
+  plugin_exchangedb_postgres.c
+libtaler_plugin_exchangedb_postgres_la_LIBADD = \
+  $(LTLIBINTL)
+libtaler_plugin_exchangedb_postgres_la_LDFLAGS = \
+  $(TALER_PLUGIN_LDFLAGS) \
+  $(top_builddir)/src/pq/libtalerpq.la \
+  $(top_builddir)/src/util/libtalerutil.la \
+  -lpq \
+  -lgnunetpq \
+  -lgnunetutil $(XLIB)
+
+lib_LTLIBRARIES = \
+  libtalerexchangedb.la
+
+libtalerexchangedb_la_SOURCES = \
+  exchangedb_keyio.c \
+  exchangedb_plugin.c
+
+libtalerexchangedb_la_LIBADD = \
+  $(top_builddir)/src/util/libtalerutil.la \
+  -lgnunetutil  $(XLIB)
+
+libtalerexchangedb_la_LDFLAGS = \
+  $(POSTGRESQL_LDFLAGS) \
+  -version-info 0:0:0 \
+  -no-undefined
+
+
+check_PROGRAMS = \
+  test-exchangedb-deposits \
+  test-exchangedb-keyio \
+  test-exchangedb-postgres \
+  test-perf-taler-exchangedb \
+  perf-exchangedb
+
+TESTS = \
+  test-exchangedb-postgres \
+  test-perf-taler-exchangedb
+
+test_exchangedb_deposits_SOURCES = \
+  test_exchangedb_deposits.c
+test_exchangedb_deposits_LDADD = \
+  libtalerexchangedb.la \
+  $(top_srcdir)/src/util/libtalerutil.la \
+  $(top_srcdir)/src/pq/libtalerpq.la \
+  -lgnunetutil \
+  -ljansson \
+  -lpq
+
+test_exchangedb_keyio_SOURCES = \
+  test_exchangedb_keyio.c
+test_exchangedb_keyio_LDADD = \
+  libtalerexchangedb.la \
+  $(top_srcdir)/src/util/libtalerutil.la \
+  $(top_srcdir)/src/pq/libtalerpq.la \
+  -lgnunetutil
+
+test_exchangedb_postgres_SOURCES = \
+  test_exchangedb.c
+test_exchangedb_postgres_LDADD = \
+  libtalerexchangedb.la \
+  $(top_srcdir)/src/util/libtalerutil.la \
+  $(top_srcdir)/src/pq/libtalerpq.la \
+  -lgnunetutil -ljansson
+
+test_perf_taler_exchangedb_SOURCES = \
+  test_perf_taler_exchangedb.c \
+  perf_taler_exchangedb_init.c \
+  perf_taler_exchangedb_interpreter.c
+test_perf_taler_exchangedb_LDADD = \
+  libtalerexchangedb.la \
+  $(top_srcdir)/src/util/libtalerutil.la \
+  $(top_srcdir)/src/pq/libtalerpq.la \
+  -ljansson \
+  -lgnunetutil
+
+perf_exchangedb_SOURCES = \
+  perf_taler_exchangedb.c \
+  perf_taler_exchangedb_init.c \
+  perf_taler_exchangedb_interpreter.c
+perf_exchangedb_LDADD = \
+  libtalerexchangedb.la \
+  $(top_srcdir)/src/util/libtalerutil.la \
+  $(top_srcdir)/src/pq/libtalerpq.la \
+  -ljansson \
+  -lgnunetutil
+
+
+EXTRA_test_exchangedb_postgres_DEPENDENCIES = \
+  libtaler_plugin_exchangedb_postgres.la
diff --git a/src/exchangedb/exchangedb_keyio.c b/src/exchangedb/exchangedb_keyio.c
new file mode 100644
index 000000000..6b8ca24e3
--- /dev/null
+++ b/src/exchangedb/exchangedb_keyio.c
@@ -0,0 +1,558 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchangedb/exchangedb_keyio.c
+ * @brief I/O operations for the Exchange's private keys
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Sree Harsha Totakura
+ * @author Christian Grothoff
+ */
+#include "platform.h"
+#include "taler_exchangedb_lib.h"
+
+
+/**
+ * Closure for the #signkeys_iterate_dir_iter().
+ */
+struct SignkeysIterateContext
+{
+
+  /**
+   * Function to call on each signing key.
+   */
+  TALER_EXCHANGEDB_SigningKeyIterator it;
+
+  /**
+   * Closure for @e it.
+   */
+  void *it_cls;
+};
+
+
+/**
+ * Function called on each file in the directory with our signing
+ * keys. Parses the file and calls the iterator from @a cls.
+ *
+ * @param cls the `struct SignkeysIterateContext *`
+ * @param filename name of the file to parse
+ * @return #GNUNET_OK to continue,
+ *         #GNUNET_NO to stop iteration without error,
+ *         #GNUNET_SYSERR to stop iteration with error
+ */
+static int
+signkeys_iterate_dir_iter (void *cls,
+                           const char *filename)
+{
+  struct SignkeysIterateContext *skc = cls;
+  ssize_t nread;
+  struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP issue;
+
+  nread = GNUNET_DISK_fn_read (filename,
+                               &issue,
+                               sizeof (struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP));
+  if (nread != sizeof (struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                "Invalid signkey file `%s': wrong size (%d, expected %u)\n",
+                filename,
+                (int) nread,
+                sizeof (struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP));
+    return GNUNET_OK;
+  }
+  return skc->it (skc->it_cls,
+                  filename,
+                  &issue);
+}
+
+
+/**
+ * Call @a it for each signing key found in the @a exchange_base_dir.
+ *
+ * @param exchange_base_dir base directory for the exchange,
+ *                      the signing keys must be in the #TALER_EXCHANGEDB_DIR_SIGNING_KEYS
+ *                      subdirectory
+ * @param it function to call on each signing key
+ * @param it_cls closure for @a it
+ * @return number of files found (may not match
+ *         number of keys given to @a it as malformed
+ *         files are simply skipped), -1 on error
+ */
+int
+TALER_EXCHANGEDB_signing_keys_iterate (const char *exchange_base_dir,
+                                   TALER_EXCHANGEDB_SigningKeyIterator it,
+                                   void *it_cls)
+{
+  char *signkey_dir;
+  struct SignkeysIterateContext skc;
+  int ret;
+
+  GNUNET_asprintf (&signkey_dir,
+                   "%s" DIR_SEPARATOR_STR TALER_EXCHANGEDB_DIR_SIGNING_KEYS,
+                   exchange_base_dir);
+  skc.it = it;
+  skc.it_cls = it_cls;
+  ret = GNUNET_DISK_directory_scan (signkey_dir,
+                                    &signkeys_iterate_dir_iter,
+                                    &skc);
+  GNUNET_free (signkey_dir);
+  return ret;
+}
+
+
+/**
+ * Import a denomination key from the given file.
+ *
+ * @param filename the file to import the key from
+ * @param[out] dki set to the imported denomination key
+ * @return #GNUNET_OK upon success;
+ *         #GNUNET_SYSERR upon failure
+ */
+int
+TALER_EXCHANGEDB_denomination_key_read (const char *filename,
+                                    struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki)
+{
+  uint64_t size;
+  size_t offset;
+  void *data;
+  struct GNUNET_CRYPTO_rsa_PrivateKey *priv;
+
+  if (GNUNET_OK != GNUNET_DISK_file_size (filename,
+                                          &size,
+                                          GNUNET_YES,
+                                          GNUNET_YES))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "Skipping inaccessable denomination key file `%s'\n",
+                filename);
+    return GNUNET_SYSERR;
+  }
+  offset = sizeof (struct TALER_EXCHANGEDB_DenominationKeyInformationP);
+  if (size <= offset)
+  {
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+  data = GNUNET_malloc (size);
+  if (size !=
+      GNUNET_DISK_fn_read (filename,
+                           data,
+                           size))
+  {
+    GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING,
+                              "read",
+                              filename);
+    GNUNET_free (data);
+    return GNUNET_SYSERR;
+  }
+  if (NULL ==
+      (priv = GNUNET_CRYPTO_rsa_private_key_decode (data + offset,
+                                                    size - offset)))
+  {
+    GNUNET_free (data);
+    return GNUNET_SYSERR;
+  }
+  GNUNET_assert (NULL == dki->denom_priv.rsa_private_key);
+  dki->denom_priv.rsa_private_key = priv;
+  dki->denom_pub.rsa_public_key
+    = GNUNET_CRYPTO_rsa_private_key_get_public (priv);
+  memcpy (&dki->issue,
+          data,
+          offset);
+  GNUNET_free (data);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Exports a denomination key to the given file.
+ *
+ * @param filename the file where to write the denomination key
+ * @param dki the denomination key
+ * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure.
+ */
+int
+TALER_EXCHANGEDB_denomination_key_write (const char *filename,
+                                     const struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki)
+{
+  char *priv_enc;
+  size_t priv_enc_size;
+  struct GNUNET_DISK_FileHandle *fh;
+  ssize_t wrote;
+  size_t wsize;
+  int ret;
+
+  fh = NULL;
+  priv_enc_size
+    = GNUNET_CRYPTO_rsa_private_key_encode (dki->denom_priv.rsa_private_key,
+                                            &priv_enc);
+  ret = GNUNET_SYSERR;
+  if (NULL == (fh = GNUNET_DISK_file_open
+               (filename,
+                GNUNET_DISK_OPEN_WRITE | GNUNET_DISK_OPEN_CREATE | GNUNET_DISK_OPEN_TRUNCATE,
+                GNUNET_DISK_PERM_USER_READ | GNUNET_DISK_PERM_USER_WRITE)))
+    goto cleanup;
+  wsize = sizeof (struct TALER_EXCHANGEDB_DenominationKeyInformationP);
+  if (GNUNET_SYSERR == (wrote = GNUNET_DISK_file_write (fh,
+                                                        &dki->issue,
+                                                        wsize)))
+    goto cleanup;
+  if (wrote != wsize)
+    goto cleanup;
+  if (GNUNET_SYSERR ==
+      (wrote = GNUNET_DISK_file_write (fh,
+                                       priv_enc,
+                                       priv_enc_size)))
+    goto cleanup;
+  if (wrote != priv_enc_size)
+    goto cleanup;
+  ret = GNUNET_OK;
+ cleanup:
+  GNUNET_free_non_null (priv_enc);
+  if (NULL != fh)
+    (void) GNUNET_DISK_file_close (fh);
+  return ret;
+}
+
+
+/**
+ * Closure for #denomkeys_iterate_keydir_iter() and
+ * #denomkeys_iterate_topdir_iter().
+ */
+struct DenomkeysIterateContext
+{
+
+  /**
+   * Set to the name of the directory below the top-level directory
+   * during the call to #denomkeys_iterate_keydir_iter().
+   */
+  const char *alias;
+
+  /**
+   * Function to call on each denomination key.
+   */
+  TALER_EXCHANGEDB_DenominationKeyIterator it;
+
+  /**
+   * Closure for @e it.
+   */
+  void *it_cls;
+};
+
+
+/**
+ * Decode the denomination key in the given file @a filename and call
+ * the callback in @a cls with the information.
+ *
+ * @param cls the `struct DenomkeysIterateContext *`
+ * @param filename name of a file that should contain
+ *                 a denomination key
+ * @return #GNUNET_OK to continue to iterate
+ *         #GNUNET_NO to abort iteration with success
+ *         #GNUNET_SYSERR to abort iteration with failure
+ */
+static int
+denomkeys_iterate_keydir_iter (void *cls,
+                               const char *filename)
+{
+  struct DenomkeysIterateContext *dic = cls;
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation issue;
+  int ret;
+
+  memset (&issue, 0, sizeof (issue));
+  if (GNUNET_OK !=
+      TALER_EXCHANGEDB_denomination_key_read (filename,
+                                          &issue))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                "Invalid denomkey file: '%s'\n",
+                filename);
+    return GNUNET_OK;
+  }
+  ret = dic->it (dic->it_cls,
+                 dic->alias,
+                 &issue);
+  GNUNET_CRYPTO_rsa_private_key_free (issue.denom_priv.rsa_private_key);
+  GNUNET_CRYPTO_rsa_public_key_free (issue.denom_pub.rsa_public_key);
+  return ret;
+}
+
+
+/**
+ * Function called on each subdirectory in the #TALER_EXCHANGEDB_DIR_DENOMINATION_KEYS.  Will
+ * call the #denomkeys_iterate_keydir_iter() on each file in the
+ * subdirectory.
+ *
+ * @param cls the `struct DenomkeysIterateContext *`
+ * @param filename name of the subdirectory to scan
+ * @return #GNUNET_OK on success,
+ *         #GNUNET_SYSERR if we need to abort
+ */
+static int
+denomkeys_iterate_topdir_iter (void *cls,
+                               const char *filename)
+{
+  struct DenomkeysIterateContext *dic = cls;
+
+  dic->alias = GNUNET_STRINGS_get_short_name (filename);
+  if (0 > GNUNET_DISK_directory_scan (filename,
+                                      &denomkeys_iterate_keydir_iter,
+                                      dic))
+    return GNUNET_SYSERR;
+  return GNUNET_OK;
+}
+
+
+/**
+ * Call @a it for each denomination key found in the @a exchange_base_dir.
+ *
+ * @param exchange_base_dir base directory for the exchange,
+ *                      the signing keys must be in the #TALER_EXCHANGEDB_DIR_DENOMINATION_KEYS
+ *                      subdirectory
+ * @param it function to call on each denomination key found
+ * @param it_cls closure for @a it
+ * @return -1 on error, 0 if no files were found, otherwise
+ *         a positive number (however, even with a positive
+ *         number it is possible that @a it was never called
+ *         as maybe none of the files were well-formed)
+ */
+int
+TALER_EXCHANGEDB_denomination_keys_iterate (const char *exchange_base_dir,
+                                        TALER_EXCHANGEDB_DenominationKeyIterator it,
+                                        void *it_cls)
+{
+  char *dir;
+  struct DenomkeysIterateContext dic;
+  int ret;
+
+  GNUNET_asprintf (&dir,
+                   "%s" DIR_SEPARATOR_STR TALER_EXCHANGEDB_DIR_DENOMINATION_KEYS,
+                   exchange_base_dir);
+  dic.it = it;
+  dic.it_cls = it_cls;
+  ret = GNUNET_DISK_directory_scan (dir,
+                                    &denomkeys_iterate_topdir_iter,
+                                    &dic);
+  GNUNET_free (dir);
+  return ret;
+}
+
+
+/**
+ * Closure for #auditor_iter() and
+ */
+struct AuditorIterateContext
+{
+
+  /**
+   * Function to call with the information for each auditor.
+   */
+  TALER_EXCHANGEDB_AuditorIterator it;
+
+  /**
+   * Closure for @e it.
+   */
+  void *it_cls;
+};
+
+
+GNUNET_NETWORK_STRUCT_BEGIN
+
+/**
+ * Header of a file with auditing information.
+ */
+struct AuditorFileHeaderP
+{
+
+  /**
+   * Public key of the auditor.
+   */
+  struct TALER_AuditorPublicKeyP apub;
+
+  /**
+   * Master public key of the exchange the auditor is signing
+   * information for.
+   */
+  struct TALER_MasterPublicKeyP mpub;
+
+};
+GNUNET_NETWORK_STRUCT_END
+
+
+/**
+ * Load the auditor signature and the information signed by the
+ * auditor and call the callback in @a cls with the information.
+ *
+ * @param cls the `struct AuditorIterateContext *`
+ * @param filename name of a file that should contain
+ *                 a denomination key
+ * @return #GNUNET_OK to continue to iterate
+ *         #GNUNET_NO to abort iteration with success
+ *         #GNUNET_SYSERR to abort iteration with failure
+ */
+static int
+auditor_iter (void *cls,
+              const char *filename)
+{
+  struct AuditorIterateContext *aic = cls;
+  uint64_t size;
+  struct AuditorFileHeaderP *af;
+  const struct TALER_AuditorSignatureP *sigs;
+  const struct TALER_DenominationKeyValidityPS *dki;
+  unsigned int len;
+  int ret;
+
+  if (GNUNET_OK != GNUNET_DISK_file_size (filename,
+                                          &size,
+                                          GNUNET_YES,
+                                          GNUNET_YES))
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                "Skipping inaccessable auditor information file `%s'\n",
+                filename);
+    return GNUNET_SYSERR;
+  }
+  if ( (size < sizeof (struct AuditorFileHeaderP)) ||
+       (0 != (len = ((size - sizeof (struct AuditorFileHeaderP)) %
+                     (sizeof (struct TALER_DenominationKeyValidityPS) +
+                      sizeof (struct TALER_AuditorSignatureP))))) )
+  {
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+  af = GNUNET_malloc (size);
+  if (size !=
+      GNUNET_DISK_fn_read (filename,
+                           af,
+                           size))
+  {
+    GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING,
+                              "read",
+                              filename);
+    GNUNET_free (af);
+    return GNUNET_SYSERR;
+  }
+  sigs = (const struct TALER_AuditorSignatureP *) &af[1];
+  dki = (const struct TALER_DenominationKeyValidityPS *) &sigs[len];
+  ret = aic->it (aic->it_cls,
+                 &af->apub,
+                 &af->mpub,
+                 len,
+                 sigs,
+                 dki);
+  GNUNET_free (af);
+  return ret;
+}
+
+
+/**
+ * Call @a it with information for each auditor found in the @a exchange_base_dir.
+ *
+ * @param exchange_base_dir base directory for the exchange,
+ *                      the signing keys must be in the #TALER_EXCHANGEDB_DIR_DENOMINATION_KEYS
+ *                      subdirectory
+ * @param it function to call with auditor information
+ * @param it_cls closure for @a it
+ * @return -1 on error, 0 if no files were found, otherwise
+ *         a positive number (however, even with a positive
+ *         number it is possible that @a it was never called
+ *         as maybe none of the files were well-formed)
+ */
+int
+TALER_EXCHANGEDB_auditor_iterate (const char *exchange_base_dir,
+                              TALER_EXCHANGEDB_AuditorIterator it,
+                              void *it_cls)
+{
+  char *dir;
+  struct AuditorIterateContext aic;
+  int ret;
+
+  GNUNET_asprintf (&dir,
+                   "%s" DIR_SEPARATOR_STR TALER_EXCHANGEDB_DIR_AUDITORS,
+                   exchange_base_dir);
+  aic.it = it;
+  aic.it_cls = it_cls;
+  ret = GNUNET_DISK_directory_scan (dir,
+                                    &auditor_iter,
+                                    &aic);
+  GNUNET_free (dir);
+  return ret;
+}
+
+
+/**
+ * Write auditor information to the given file.
+ *
+ * @param filename the file where to write the auditor information to
+ * @param apub the auditor's public key
+ * @param asigs the auditor's signatures, array of length @a dki_len
+ * @param mpub the exchange's public key (as expected by the auditor)
+ * @param dki_len length of @a dki
+ * @param dki array of denomination coin data signed by the auditor
+ * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure.
+ */
+int
+TALER_EXCHANGEDB_auditor_write (const char *filename,
+                            const struct TALER_AuditorPublicKeyP *apub,
+                            const struct TALER_AuditorSignatureP *asigs,
+                            const struct TALER_MasterPublicKeyP *mpub,
+                            unsigned int dki_len,
+                            const struct TALER_DenominationKeyValidityPS *dki)
+{
+  struct AuditorFileHeaderP af;
+  struct GNUNET_DISK_FileHandle *fh;
+  ssize_t wrote;
+  size_t wsize;
+  int ret;
+  int eno;
+
+  af.apub = *apub;
+  af.mpub = *mpub;
+  ret = GNUNET_SYSERR;
+  if (NULL == (fh = GNUNET_DISK_file_open
+               (filename,
+                GNUNET_DISK_OPEN_WRITE | GNUNET_DISK_OPEN_CREATE | GNUNET_DISK_OPEN_TRUNCATE,
+                GNUNET_DISK_PERM_USER_READ | GNUNET_DISK_PERM_USER_WRITE)))
+    goto cleanup;
+  wsize = sizeof (struct AuditorFileHeaderP);
+  if (GNUNET_SYSERR == (wrote = GNUNET_DISK_file_write (fh,
+                                                        &af,
+                                                        wsize)))
+    goto cleanup;
+  if (wrote != wsize)
+    goto cleanup;
+  wsize = dki_len * sizeof (struct TALER_AuditorSignatureP);
+  if (wsize ==
+      GNUNET_DISK_file_write (fh,
+                              asigs,
+                              wsize))
+    ret = GNUNET_OK;
+  wsize = dki_len * sizeof (struct TALER_DenominationKeyValidityPS);
+  if (wsize ==
+      GNUNET_DISK_file_write (fh,
+                              dki,
+                              wsize))
+    ret = GNUNET_OK;
+ cleanup:
+  eno = errno;
+  if (NULL != fh)
+    (void) GNUNET_DISK_file_close (fh);
+  errno = eno;
+  return ret;
+}
+
+
+/* end of exchangedb_keyio.c */
diff --git a/src/exchangedb/exchangedb_plugin.c b/src/exchangedb/exchangedb_plugin.c
new file mode 100644
index 000000000..ebaef9cc0
--- /dev/null
+++ b/src/exchangedb/exchangedb_plugin.c
@@ -0,0 +1,87 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchangedb/exchangedb_plugin.c
+ * @brief Logic to load database plugin
+ * @author Christian Grothoff
+ * @author Sree Harsha Totakura <sreeharsha@totakura.in>
+ */
+#include "platform.h"
+#include "taler_exchangedb_plugin.h"
+#include <ltdl.h>
+
+
+/**
+ * Initialize the plugin.
+ *
+ * @param cfg configuration to use
+ * @return #GNUNET_OK on success
+ */
+struct TALER_EXCHANGEDB_Plugin *
+TALER_EXCHANGEDB_plugin_load (const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+  char *plugin_name;
+  char *lib_name;
+  struct GNUNET_CONFIGURATION_Handle *cfg_dup;
+  struct TALER_EXCHANGEDB_Plugin *plugin;
+
+  if (GNUNET_SYSERR ==
+      GNUNET_CONFIGURATION_get_value_string (cfg,
+                                             "exchange",
+                                             "db",
+                                             &plugin_name))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               "exchange",
+                               "db");
+    return NULL;
+  }
+  (void) GNUNET_asprintf (&lib_name,
+                          "libtaler_plugin_exchangedb_%s",
+                          plugin_name);
+  GNUNET_free (plugin_name);
+  cfg_dup = GNUNET_CONFIGURATION_dup (cfg);
+  plugin = GNUNET_PLUGIN_load (lib_name, cfg_dup);
+  if (NULL != plugin)
+    plugin->library_name = lib_name;
+  else
+    GNUNET_free (lib_name);
+  GNUNET_CONFIGURATION_destroy (cfg_dup);
+  return plugin;
+}
+
+
+/**
+ * Shutdown the plugin.
+ *
+ * @param plugin the plugin to unload
+ */
+void
+TALER_EXCHANGEDB_plugin_unload (struct TALER_EXCHANGEDB_Plugin *plugin)
+{
+  char *lib_name;
+
+  if (NULL == plugin)
+    return;
+  lib_name = plugin->library_name;
+  GNUNET_assert (NULL == GNUNET_PLUGIN_unload (lib_name,
+                                               plugin));
+  GNUNET_free (lib_name);
+}
+
+
+
+/* end of exchangedb_plugin.c */
diff --git a/src/exchangedb/perf_taler_exchangedb.c b/src/exchangedb/perf_taler_exchangedb.c
new file mode 100644
index 000000000..6ff7f5331
--- /dev/null
+++ b/src/exchangedb/perf_taler_exchangedb.c
@@ -0,0 +1,358 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2014, 2015 GNUnet e.V.
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+   */
+/**
+ * @file exchangedb/perf_taler_exchangedb.c
+ * @brief Exchange database performance analysis
+ * @author Nicolas Fournier
+ */
+#include "platform.h"
+#include "perf_taler_exchangedb_interpreter.h"
+
+
+#define NB_DENOMINATION_INIT  15
+#define NB_DENOMINATION_SAVE  15
+
+#define SMALL 1000
+#define BIG 10000
+#define BIGGER 100000
+
+#define NB_RESERVE_INIT   BIGGER
+#define NB_RESERVE_SAVE   BIG
+
+#define NB_DEPOSIT_INIT   BIGGER
+#define NB_DEPOSIT_SAVE   BIG
+
+#define NB_WITHDRAW_INIT  BIGGER
+#define NB_WITHDRAW_SAVE  BIG
+
+#define NB_REFRESH_INIT BIGGER
+#define NB_REFRESH_SAVE BIG
+
+#define NB_MELT_INIT BIG
+#define NB_MELT_SAVE SMALL
+
+/**
+ * Runs the performances tests for the exchange database
+ * and logs the results using Gauger
+ */
+int
+main (int argc, char ** argv)
+{
+  int ret;
+  struct PERF_TALER_EXCHANGEDB_Cmd benchmark[] =
+  {
+    /* Denomination used to create coins */
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("Initializing database"),
+
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("01 - denomination loop",
+                                     NB_DENOMINATION_INIT),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_START_TRANSACTION (""),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_DENOMINATION ("01 - denomination"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_DENOMINATION ("01 - insert",
+                                                    "01 - denomination"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_COMMIT_TRANSACTION (""),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_SAVE_ARRAY ("01 - save denomination",
+                                           "01 - denomination loop",
+                                           "01 - denomination",
+                                           NB_DENOMINATION_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("01 - end",
+                                         "01 - denomination loop"),
+    /* End of initialization */
+    /* Reserve initialization */
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("02 - init reserve loop",
+                                     NB_RESERVE_INIT),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_RESERVE ("02 - reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_RESERVE ("02 - insert",
+                                               "02 - reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_SAVE_ARRAY ("02 - save reserve",
+                                           "02 - init reserve loop",
+                                           "02 - reserve",
+                                           NB_RESERVE_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("02 - end",
+                                         "02 - init reserve loop"),
+    /* End reserve init */
+    /* Withdrawal initialization */
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("03 - init withdraw loop",
+                                     NB_WITHDRAW_INIT),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_START_TRANSACTION (""),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("03 - denomination load",
+                                           "03 - init withdraw loop",
+                                           "01 - save denomination"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("03 - reserve load",
+                                           "03 - init withdraw loop",
+                                           "02 - save reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_WITHDRAW ("03 - withdraw",
+                                                "03 - denomination load",
+                                                "03 - reserve load"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_WITHDRAW ("03 - insert",
+                                                "03 - withdraw"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_COMMIT_TRANSACTION (""),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_SAVE_ARRAY ("03 - save coin",
+                                           "03 - init withdraw loop",
+                                           "03 - withdraw",
+                                           NB_WITHDRAW_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("03 - end",
+                                         "03 - init withdraw loop"),
+    /*End of withdrawal initialization */
+    /*Deposit initialization */
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("04 - deposit init loop",
+                                     NB_DEPOSIT_INIT),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_START_TRANSACTION (""),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("04 - coin load",
+                                           "04 - deposit init loop",
+                                           "03 - save coin"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_DEPOSIT ("04 - deposit",
+                                               "04 - coin load"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_DEPOSIT ("04 - insert",
+                                               "04 - deposit"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_COMMIT_TRANSACTION (""),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_SAVE_ARRAY ("04 - deposit array",
+                                           "04 - deposit init loop",
+                                           "04 - deposit",
+                                           NB_DEPOSIT_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("",
+                                         "04 - deposit init loop"),
+    /* End of deposit initialization */
+    /* Session initialization */
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("05 - refresh session init loop",
+                                     NB_REFRESH_INIT),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_START_TRANSACTION (""),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_REFRESH_SESSION ("05 - refresh session"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_SAVE_ARRAY ("05 - session array",
+                                           "05 - refresh session init loop",
+                                           "05 - refresh session",
+                                           NB_RESERVE_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_COMMIT_TRANSACTION (""),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("05 - end",
+                                         "05 - refresh session init loop"),
+    /* End of refresh session initialization */
+    /* Refresh melt initialization */
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("06 - refresh melt init loop",
+                                     NB_MELT_INIT),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_START_TRANSACTION (""),
+    /* TODO: initialize using coins & sessions created localy 
+     * in order to make sure the same coin are not melted twice*/
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("06 - session hash",
+                                           "06 - refresh melt init loop",
+                                           "05 - session array"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("06 - coin",
+                                           "06 - refresh melt init loop",
+                                           "03 - save coin"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_REFRESH_MELT ("06 - refresh melt",
+                                                    "06 - session hash",
+                                                    "06 - coin"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_COMMIT_TRANSACTION (""),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("06 - end",
+                                         "06 - refresh melt init loop"),
+    /* End of refresh melt initialization */
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("End of initialization"),
+
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("Start of performances measuring"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("21 - start"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("21 - reserve insert measure",
+                                     NB_RESERVE_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_RESERVE ("21 - reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_RESERVE ("21 - insert",
+                                               "21 - reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("",
+                                         "21 - reserve insert measure"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("21 - stop"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GAUGER ("21 - gauger",
+                                       "21 - start",
+                                       "21 - stop",
+                                       "POSTGRES",
+                                       "Number of reserve inserted per second",
+                                       "item/sec",
+                                       NB_RESERVE_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("End of reserve insertion"),
+
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("22 - start"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("22 - reserve load measure",
+                                     NB_RESERVE_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("22 - reserve",
+                                           "22 - reserve load measure",
+                                           "02 - save reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_RESERVE ("22 - get",
+                                            "22 - reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("",
+                                         "22 - reserve load measure"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("22 - stop"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GAUGER ("",
+                                       "22 - start",
+                                       "22 - stop",
+                                       "POSTGRES",
+                                       "Number of reserve loaded per second",
+                                       "item/sec",
+                                       NB_RESERVE_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("End of reserve retreival"),
+
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("23 - start"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("23 - reserve history measure",
+                                     NB_RESERVE_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("23 - reserve",
+                                           "23 - reserve history measure",
+                                           "02 - save reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_RESERVE_HISTORY ("",
+                                                    "23 - reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("",
+                                         "23 - reserve history measure"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("23 - stop"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GAUGER ("",
+                                       "23 - start",
+                                       "23 - stop",
+                                       "POSTGRES",
+                                       "Number of reserve history loaded per second",
+                                       "item/sec",
+                                       NB_RESERVE_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("End of reserve history access"),
+
+
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("24 - start"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("24 - withdraw insert measure",
+                                     NB_WITHDRAW_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("24 - reserve",
+                                           "24 - withdraw insert measure",
+                                           "02 - save reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("24 - denomination",
+                                           "24 - withdraw insert measure",
+                                           "01 - save denomination"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_WITHDRAW ("24 - withdraw",
+                                                "24 - denomination",
+                                                "24 - reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_WITHDRAW ("24 - insert",
+                                                "24 - withdraw"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("",
+                                         "24 - withdraw insert measure"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("24 - stop"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GAUGER ("",
+                                       "24 - start",
+                                       "24 - stop",
+                                       "POSTGRES",
+                                       "Number of withdraw insert per second",
+                                       "item/sec",
+                                       NB_WITHDRAW_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("End of withdraw insertion"),
+
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("25 - start"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("25 - withdraw insert measure",
+                                     NB_RESERVE_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("25 - coin",
+                                           "25 - withdraw insert measure",
+                                           "03 - save coin"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_WITHDRAW ("",
+                                             "25 - coin"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("",
+                                         "25 - withdraw insert measure"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("25 - stop"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GAUGER ("",
+                                       "25 - start",
+                                       "25 - stop",
+                                       "POSTGRES",
+                                       "Number of withdraw loaded per second",
+                                       "item/sec",
+                                       NB_RESERVE_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("End of withdraw loading"),
+
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("26 - start"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("26 - get coin transaction",
+                                     NB_WITHDRAW_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("26 - coin",
+                                           "26 - get coin transaction",
+                                           "03 - save coin"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_COIN_TRANSACTION("",
+                                                    "26 - coin"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("",
+                                         "26 - get coin transaction"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("26 - end"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GAUGER ("",
+                                       "26 - start",
+                                       "26 - end",
+                                       "POSTGRES",
+                                       "Number of coin transaction history loaded per second",
+                                       "item/sec",
+                                       NB_WITHDRAW_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("End of transaction loading"),
+
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("27 - start"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("27 - /reserve/withdraw",
+                                     NB_WITHDRAW_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("27 - reserve",
+                                           "27 - /reserve/withdraw",
+                                           "02 - save reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("27 - dki",
+                                           "27 - /reserve/withdraw",
+                                           "01 - save denomination"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_WITHDRAW_SIGN ("",
+                                              "27 - dki",
+                                              "27 - reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("",
+                                         "27 - /reserve/withdraw"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("27 - end"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GAUGER ("",
+                                       "27 - start",
+                                       "27 - end",
+                                       "POSTGRES",
+                                       "Number of /reserve/withdraw per second",
+                                       "item/sec",
+                                       NB_WITHDRAW_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("End of /reserve/withdraw"),
+
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("28 - start"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("28 - /deposit",
+                                     NB_DEPOSIT_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("28 - coin",
+                                           "28 - /deposit",
+                                           "03 - save coin"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEPOSIT ("28 - deposit",
+                                        "28 - coin"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("",
+                                         "28 - /deposit"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("28 - stop"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GAUGER ("",
+                                       "28 - start",
+                                       "28 - stop",
+                                       "POSTGRES",
+                                       "Number of /deposit per second",
+                                       "item/sec",
+                                       NB_DEPOSIT_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("29 - start"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("29 - insert refresh session",
+                                     NB_REFRESH_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_START_TRANSACTION (""),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_REFRESH_SESSION (""),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_COMMIT_TRANSACTION (""),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("",
+                                         "29 - insert refresh session"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("29 - stop"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GAUGER ("",
+                                       "29 - start",
+                                       "29 - stop",
+                                       "POSTGRES",
+                                       "Number of refresh session inserted per second",
+                                       "item/sec",
+                                       NB_REFRESH_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END (""),
+  };
+
+  ret = PERF_TALER_EXCHANGEDB_run_benchmark (
+    "perf-taler-exchangedb",
+    "./test-exchange-db-postgres.conf",
+    (struct PERF_TALER_EXCHANGEDB_Cmd []) {PERF_TALER_EXCHANGEDB_INIT_CMD_END("")},
+    benchmark);
+  if (GNUNET_SYSERR == ret)
+    return 1;
+  return 0;
+}
diff --git a/src/exchangedb/perf_taler_exchangedb_init.c b/src/exchangedb/perf_taler_exchangedb_init.c
new file mode 100644
index 000000000..2e613b3cf
--- /dev/null
+++ b/src/exchangedb/perf_taler_exchangedb_init.c
@@ -0,0 +1,622 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2014, 2015 GNUnet e.V.
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+   */
+/**
+ * @file exchangedb/perf_taler_exchangedb_init.c
+ * @brief Interpreter library for exchange database performance analysis
+ * @author Nicolas Fournier
+ */
+#include "platform.h"
+#include "perf_taler_exchangedb_init.h"
+#include <gnunet/gnunet_signatures.h>
+#include "taler_signatures.h"
+#include "taler_amount_lib.h"
+
+
+#define CURRENCY "EUR"
+#define PERF_TALER_EXCHANGEDB_RSA_SIZE 512
+
+
+/**
+ * Generate a dummy DenominationKeyInformation for testing purposes
+ * @return a dummy denomination key
+ */
+struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *
+PERF_TALER_EXCHANGEDB_denomination_init ()
+{
+  struct GNUNET_CRYPTO_EddsaPrivateKey *master_prvt;
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki;
+  struct TALER_DenominationPrivateKey denom_priv;
+  struct TALER_DenominationPublicKey denom_pub;
+  struct TALER_EXCHANGEDB_DenominationKeyInformationP issue;
+
+  master_prvt = GNUNET_CRYPTO_eddsa_key_create();
+
+  dki = GNUNET_new (struct TALER_EXCHANGEDB_DenominationKeyIssueInformation);
+  GNUNET_assert (NULL != dki);
+  denom_priv.rsa_private_key
+    = GNUNET_CRYPTO_rsa_private_key_create (PERF_TALER_EXCHANGEDB_RSA_SIZE);
+  GNUNET_assert (NULL != denom_priv.rsa_private_key);
+  denom_pub.rsa_public_key =
+    GNUNET_CRYPTO_rsa_private_key_get_public (denom_priv.rsa_private_key);
+  GNUNET_assert (NULL != denom_pub.rsa_public_key);
+  {/* issue */
+    struct TALER_MasterSignatureP signature;
+    struct TALER_DenominationKeyValidityPS properties;
+
+    {/* properties */
+      struct TALER_Amount amount;
+
+      properties.purpose.purpose = htonl (TALER_SIGNATURE_MASTER_SIGNING_KEY_VALIDITY);
+      properties.purpose.size = htonl (sizeof (struct TALER_DenominationKeyValidityPS));
+      GNUNET_CRYPTO_eddsa_key_get_public (master_prvt,
+                                          &properties.master.eddsa_pub);
+      properties.start = GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get());
+      properties.expire_withdraw = GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get_forever_());
+      properties.expire_spend = GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get_forever_());
+      properties.expire_legal = GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get_forever_());
+      GNUNET_assert (GNUNET_OK ==
+                     TALER_string_to_amount (CURRENCY ":1.1", &amount));
+      TALER_amount_hton (&properties.value, &amount);
+      GNUNET_assert (GNUNET_OK ==
+                     TALER_string_to_amount (CURRENCY ":0.1", &amount));
+      TALER_amount_hton (&properties.fee_withdraw, &amount);
+      TALER_amount_hton (&properties.fee_deposit, &amount);
+      TALER_amount_hton (&properties.fee_refresh, &amount);
+      GNUNET_CRYPTO_rsa_public_key_hash (denom_pub.rsa_public_key,
+                                         &properties.denom_hash);
+      issue.properties = properties;
+    }
+    {/* signature */
+      GNUNET_CRYPTO_eddsa_sign (master_prvt,
+                                &properties.purpose,
+                                &signature.eddsa_signature);
+      issue.signature = signature;
+    }
+  }
+  dki->denom_priv = denom_priv;
+  dki->denom_pub = denom_pub;
+  dki->issue = issue;
+  GNUNET_free (master_prvt);
+  return dki;
+}
+
+
+/**
+ * Copies the given denomination
+ * @param reserve the deposit copy
+ * @return a copy of @a deposit; NULL if error
+ */
+struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *
+PERF_TALER_EXCHANGEDB_denomination_copy (const struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki)
+{
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *copy;
+
+  GNUNET_assert (NULL !=
+                 (copy = GNUNET_new (struct TALER_EXCHANGEDB_DenominationKeyIssueInformation)));
+  {/* denom_priv */
+    copy->denom_priv.rsa_private_key =
+      GNUNET_CRYPTO_rsa_private_key_dup ( dki->denom_priv.rsa_private_key);
+  }
+  {/* denom_pub */
+    copy->denom_pub.rsa_public_key =
+      GNUNET_CRYPTO_rsa_public_key_dup (dki->denom_pub.rsa_public_key);
+  }
+  {/* issue */
+    copy->issue.properties = dki->issue.properties;
+    copy->issue.signature = dki->issue.signature;
+  }
+  return copy;
+}
+
+
+/**
+ * Free memory of a DenominationKeyIssueInformation
+ * @param dki pointer to the struct to free
+ */
+int
+PERF_TALER_EXCHANGEDB_denomination_free (struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki)
+{
+  if (NULL == dki)
+    return GNUNET_OK;
+  GNUNET_CRYPTO_rsa_private_key_free (dki->denom_priv.rsa_private_key);
+  GNUNET_CRYPTO_rsa_public_key_free (dki->denom_pub.rsa_public_key);
+
+  GNUNET_free (dki);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Generate a dummy reserve for testing
+ * @return a reserve with 1000 EUR in it
+ */
+struct PERF_TALER_EXCHANGEDB_Reserve *
+PERF_TALER_EXCHANGEDB_reserve_init ()
+{
+  struct PERF_TALER_EXCHANGEDB_Reserve *reserve;
+
+  GNUNET_assert (NULL !=
+                 (reserve = GNUNET_new (struct PERF_TALER_EXCHANGEDB_Reserve)));
+  {/* private */
+    struct GNUNET_CRYPTO_EddsaPrivateKey *private;
+    private = GNUNET_CRYPTO_eddsa_key_create ();
+    GNUNET_assert (NULL != private);
+    reserve->private = *private;
+    GNUNET_free (private);
+  }
+
+  GNUNET_CRYPTO_eddsa_key_get_public (&reserve->private,
+                                      &reserve->reserve.pub.eddsa_pub);
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_string_to_amount (CURRENCY ":1000", &reserve->reserve.balance));
+  reserve->reserve.expiry = GNUNET_TIME_absolute_get_forever_ ();
+  return reserve;
+}
+
+
+/**
+ * Copies the given reserve
+ * @param reserve the reserve to copy
+ * @return a copy of @a reserve; NULL if error
+ */
+struct PERF_TALER_EXCHANGEDB_Reserve *
+PERF_TALER_EXCHANGEDB_reserve_copy (const struct PERF_TALER_EXCHANGEDB_Reserve *reserve)
+{
+  struct PERF_TALER_EXCHANGEDB_Reserve *copy;
+  GNUNET_assert (NULL !=
+                 (copy = GNUNET_new (struct PERF_TALER_EXCHANGEDB_Reserve)));
+  *copy = *reserve;
+  return copy;
+}
+
+
+/**
+ * Free memory of a reserve
+ * @param reserve pointer to the structure to be freed
+ */
+int
+PERF_TALER_EXCHANGEDB_reserve_free (struct PERF_TALER_EXCHANGEDB_Reserve *reserve)
+{
+  if (NULL == reserve)
+    return GNUNET_OK;
+  GNUNET_free (reserve);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Generate a dummy deposit for testing purposes
+ * @param dki the denomination key used to sign the key
+ */
+struct TALER_EXCHANGEDB_Deposit *
+PERF_TALER_EXCHANGEDB_deposit_init (const struct PERF_TALER_EXCHANGEDB_Coin *coin)
+{
+  struct TALER_EXCHANGEDB_Deposit *deposit;
+  struct TALER_CoinSpendSignatureP csig;
+  struct TALER_MerchantPublicKeyP merchant_pub;
+  struct GNUNET_HashCode h_contract;
+  struct GNUNET_HashCode h_wire;
+  const char wire[] = "{"
+    "\"type\":\"SEPA\","
+    "\"IBAN\":\"DE67830654080004822650\","
+    "\"NAME\":\"GNUNET E.\","
+    "\"BIC\":\"GENODEF1SRL\""
+    "}";
+  static uint64_t transaction_id = 0;
+  struct GNUNET_TIME_Absolute timestamp;
+  struct GNUNET_TIME_Absolute refund_deadline;
+  struct TALER_Amount amount_with_fee;
+  struct TALER_Amount deposit_fee;
+
+  GNUNET_assert (NULL !=
+                 (deposit = GNUNET_malloc (sizeof (struct TALER_EXCHANGEDB_Deposit) + sizeof (wire))));
+  GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK,
+                                    &h_contract);
+  GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK,
+                                    &h_wire);
+  { //csig
+    struct u32_presign
+    {
+      struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
+      struct GNUNET_HashCode h_wire;
+      struct GNUNET_HashCode h_contract;
+    } unsigned_data;
+
+    unsigned_data.h_contract = h_contract;
+    unsigned_data.h_wire = h_wire;
+    unsigned_data.purpose.size = htonl (sizeof (struct u32_presign));
+    unsigned_data.purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_TEST);
+    GNUNET_assert (GNUNET_OK ==
+                   GNUNET_CRYPTO_eddsa_sign (&coin->priv,
+                                             &unsigned_data.purpose,
+                                             &csig.eddsa_signature));
+  }
+  { //merchant_pub
+    struct GNUNET_CRYPTO_EddsaPrivateKey *eddsa_prv;
+
+    eddsa_prv = GNUNET_CRYPTO_eddsa_key_create ();
+    GNUNET_assert(NULL != eddsa_prv);
+    GNUNET_CRYPTO_eddsa_key_get_public (
+      eddsa_prv,
+      &merchant_pub.eddsa_pub);
+    GNUNET_free (eddsa_prv);
+  }
+  timestamp = GNUNET_TIME_absolute_get ();
+  refund_deadline = GNUNET_TIME_absolute_get ();
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_string_to_amount (CURRENCY ":1.1",
+                                         &amount_with_fee));
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_string_to_amount (CURRENCY ":0.1",
+                                         &deposit_fee));
+  {
+    deposit->coin.coin_pub = coin->public_info.coin_pub;
+    deposit->coin.denom_pub.rsa_public_key = GNUNET_CRYPTO_rsa_public_key_dup (
+      coin->public_info.denom_pub.rsa_public_key);
+    GNUNET_assert (NULL != coin->public_info.denom_pub.rsa_public_key);
+    deposit->coin.denom_sig.rsa_signature = GNUNET_CRYPTO_rsa_signature_dup (
+      coin->public_info.denom_sig.rsa_signature);
+    GNUNET_assert (NULL != coin->public_info.denom_sig.rsa_signature);
+  }
+  deposit->csig = csig;
+  deposit->h_contract = h_contract;
+  deposit->h_wire = h_wire;
+  deposit->wire = json_loads (wire, 0, NULL);
+  deposit->transaction_id = transaction_id++;
+  deposit->timestamp = timestamp;
+  deposit->refund_deadline = refund_deadline;
+  deposit->amount_with_fee = amount_with_fee;
+  deposit->deposit_fee = deposit_fee;
+  return deposit;
+}
+
+
+/**
+ * Copies the given deposit
+ * @param reserve the deposit copy
+ * @return a copy of @a deposit; NULL if error
+ */
+struct TALER_EXCHANGEDB_Deposit *
+PERF_TALER_EXCHANGEDB_deposit_copy (const struct TALER_EXCHANGEDB_Deposit *deposit)
+{
+  struct TALER_EXCHANGEDB_Deposit *copy;
+
+  copy = GNUNET_new (struct TALER_EXCHANGEDB_Deposit);
+  *copy = *deposit;
+  json_incref (copy->wire);
+  copy->coin.denom_pub.rsa_public_key =
+    GNUNET_CRYPTO_rsa_public_key_dup (deposit->coin.denom_pub.rsa_public_key);
+  copy->coin.denom_sig.rsa_signature =
+    GNUNET_CRYPTO_rsa_signature_dup (deposit->coin.denom_sig.rsa_signature);
+  return copy;
+}
+
+
+/**
+ * Free memory of a deposit
+ * @param deposit pointer to the structure to free
+ */
+int
+PERF_TALER_EXCHANGEDB_deposit_free (struct TALER_EXCHANGEDB_Deposit *deposit)
+{
+  if (NULL == deposit)
+    return GNUNET_OK;
+  GNUNET_CRYPTO_rsa_public_key_free (deposit->coin.denom_pub.rsa_public_key);
+  GNUNET_CRYPTO_rsa_signature_free (deposit->coin.denom_sig.rsa_signature);
+  json_decref (deposit->wire);
+  GNUNET_free (deposit);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Generate a CollectableBlindcoin for testing purpuses
+ * @param dki denomination key used to sign the coin
+ * @param reserve reserve providing the money for the coin
+ * @return a randomly generated CollectableBlindcoin
+ */
+struct PERF_TALER_EXCHANGEDB_Coin *
+PERF_TALER_EXCHANGEDB_coin_init (
+  const struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki,
+  const struct PERF_TALER_EXCHANGEDB_Reserve *reserve)
+{
+  struct PERF_TALER_EXCHANGEDB_Coin *coin;
+  struct GNUNET_CRYPTO_EddsaPrivateKey *priv;
+
+  coin = GNUNET_new (struct PERF_TALER_EXCHANGEDB_Coin);
+  GNUNET_assert (NULL != coin);
+  /* priv */
+
+  priv = GNUNET_CRYPTO_eddsa_key_create();
+  GNUNET_assert (NULL != priv);
+  coin->priv = *priv;
+  GNUNET_free (priv);
+
+  /* public_info */
+  GNUNET_CRYPTO_eddsa_key_get_public (&coin->priv,
+                                      &coin->public_info.coin_pub.eddsa_pub);
+  coin->public_info.denom_pub.rsa_public_key =
+    GNUNET_CRYPTO_rsa_public_key_dup (dki->denom_pub.rsa_public_key);
+  coin->public_info.denom_sig.rsa_signature =
+    GNUNET_CRYPTO_rsa_sign (dki->denom_priv.rsa_private_key,
+                            &coin->public_info.coin_pub,
+                            sizeof (struct TALER_CoinSpendPublicKeyP));
+  GNUNET_assert (NULL != coin->public_info.denom_pub.rsa_public_key);
+  GNUNET_assert (NULL != coin->public_info.denom_sig.rsa_signature);
+
+  /* blind */
+  coin->blind.sig.rsa_signature =
+    GNUNET_CRYPTO_rsa_signature_dup (coin->public_info.denom_sig.rsa_signature);
+  coin->blind.denom_pub.rsa_public_key =
+    GNUNET_CRYPTO_rsa_public_key_dup (dki->denom_pub.rsa_public_key);
+  GNUNET_assert (NULL != coin->blind.sig.rsa_signature);
+  GNUNET_assert (NULL != coin->blind.denom_pub.rsa_public_key);
+  TALER_amount_ntoh (&coin->blind.amount_with_fee,
+                     &dki->issue.properties.value);
+  TALER_amount_ntoh (&coin->blind.withdraw_fee,
+                     &dki->issue.properties.fee_withdraw);
+  coin->blind.reserve_pub = reserve->reserve.pub;
+  GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK,
+                                    &coin->blind.h_coin_envelope);
+
+  return coin;
+}
+
+
+/**
+ * Copies the given coin
+ *
+ * @param coin the coin to copy
+ * @return a copy of coin; NULL if error
+ */
+struct PERF_TALER_EXCHANGEDB_Coin *
+PERF_TALER_EXCHANGEDB_coin_copy (const struct PERF_TALER_EXCHANGEDB_Coin *coin)
+{
+  struct PERF_TALER_EXCHANGEDB_Coin *copy;
+
+  copy = GNUNET_new (struct PERF_TALER_EXCHANGEDB_Coin);
+  /* priv */
+  copy->priv = coin->priv;
+  /* public_info */
+  copy->public_info.coin_pub = coin->public_info.coin_pub;
+  copy->public_info.denom_pub.rsa_public_key =
+    GNUNET_CRYPTO_rsa_public_key_dup (coin->public_info.denom_pub.rsa_public_key);
+  copy->public_info.denom_sig.rsa_signature =
+    GNUNET_CRYPTO_rsa_signature_dup (coin->public_info.denom_sig.rsa_signature);
+
+  /* blind */
+  copy->blind.sig.rsa_signature =
+    GNUNET_CRYPTO_rsa_signature_dup (coin->blind.sig.rsa_signature);
+  copy->blind.denom_pub.rsa_public_key =
+    GNUNET_CRYPTO_rsa_public_key_dup (coin->blind.denom_pub.rsa_public_key);
+  copy->blind.amount_with_fee = coin->blind.amount_with_fee;
+  copy->blind.withdraw_fee = coin->blind.withdraw_fee;
+  copy->blind.reserve_pub = coin->blind.reserve_pub;
+  copy->blind.h_coin_envelope = coin->blind.h_coin_envelope;
+  copy->blind.reserve_sig = coin->blind.reserve_sig;
+
+  return copy;
+}
+
+
+/**
+ * Free memory of @a coin
+ *
+ * @param coin pointer to the structure to free
+ */
+int
+PERF_TALER_EXCHANGEDB_coin_free (struct PERF_TALER_EXCHANGEDB_Coin *coin)
+{
+  if (NULL == coin)
+    return GNUNET_OK;
+  GNUNET_CRYPTO_rsa_public_key_free (coin->public_info.denom_pub.rsa_public_key);
+  GNUNET_CRYPTO_rsa_signature_free (coin->public_info.denom_sig.rsa_signature);
+  GNUNET_CRYPTO_rsa_signature_free (coin->blind.sig.rsa_signature);
+  GNUNET_CRYPTO_rsa_public_key_free (coin->blind.denom_pub.rsa_public_key);
+  GNUNET_free (coin);
+  return GNUNET_OK;
+}
+
+
+/**
+ * @return a randomly generated refresh session
+ */
+struct TALER_EXCHANGEDB_RefreshSession *
+PERF_TALER_EXCHANGEDB_refresh_session_init ()
+{
+  struct TALER_EXCHANGEDB_RefreshSession *refresh_session;
+
+  GNUNET_assert (NULL !=
+                 (refresh_session = GNUNET_new (struct TALER_EXCHANGEDB_RefreshSession)));
+  refresh_session->noreveal_index = 1;
+  refresh_session->num_oldcoins = 1;
+  refresh_session->num_newcoins = 1;
+
+  return refresh_session;
+}
+
+
+/**
+ * @return #GNUNET_OK if the copy was successful, #GNUNET_SYSERR if it wasn't
+ */
+int
+PERF_TALER_EXCHANGEDB_refresh_session_copy (struct TALER_EXCHANGEDB_RefreshSession *session,
+                                        struct TALER_EXCHANGEDB_RefreshSession *copy)
+{
+  *copy = *session;
+  return GNUNET_OK;
+}
+
+
+/**
+ * Free a refresh session
+ */
+int
+PERF_TALER_EXCHANGEDB_refresh_session_free (struct TALER_EXCHANGEDB_RefreshSession *refresh_session)
+{
+  if (NULL == refresh_session)
+    return GNUNET_OK;
+  GNUNET_free (refresh_session);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Create a melt operation
+ *
+ * @param session the refresh session
+ * @param dki the denomination the melted coin uses
+ * @return a pointer to a #TALER_EXCHANGEDB_RefreshMelt
+ */
+struct TALER_EXCHANGEDB_RefreshMelt *
+PERF_TALER_EXCHANGEDB_refresh_melt_init (struct GNUNET_HashCode *session,
+                                     struct PERF_TALER_EXCHANGEDB_Coin *coin)
+{
+  struct TALER_EXCHANGEDB_RefreshMelt *melt;
+  struct TALER_CoinSpendSignatureP coin_sig;
+  struct TALER_Amount amount;
+  struct TALER_Amount amount_with_fee;
+
+  {
+    struct
+    {
+      struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
+      struct GNUNET_HashCode session;
+    } to_sign;
+
+    to_sign.purpose.purpose = GNUNET_SIGNATURE_PURPOSE_TEST;
+    to_sign.purpose.size = htonl (sizeof (to_sign));
+    to_sign.session = *session;
+    GNUNET_CRYPTO_eddsa_sign (&coin->priv,
+                              &to_sign.purpose,
+                              &coin_sig.eddsa_signature);
+  }
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_string_to_amount (CURRENCY ":1.1",
+                                         &amount));
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_string_to_amount (CURRENCY ":0.1",
+                                         &amount_with_fee));
+  melt = GNUNET_new (struct TALER_EXCHANGEDB_RefreshMelt);
+  melt->coin.coin_pub = coin->public_info.coin_pub;
+  melt->coin.denom_sig.rsa_signature =
+    GNUNET_CRYPTO_rsa_signature_dup (coin->public_info.denom_sig.rsa_signature);
+  melt->coin.denom_pub.rsa_public_key =
+    GNUNET_CRYPTO_rsa_public_key_dup (coin->public_info.denom_pub.rsa_public_key);
+  GNUNET_assert (NULL != melt->coin.denom_pub.rsa_public_key);
+  GNUNET_assert (NULL != melt->coin.denom_sig.rsa_signature);
+  melt->coin_sig = coin_sig;
+  melt->session_hash = *session;
+  melt->amount_with_fee = amount;
+  melt->melt_fee = amount_with_fee;
+  return melt;
+}
+
+
+/**
+ * Copies the internals of a #TALER_EXCHANGEDB_RefreshMelt
+ *
+ * @param melt the refresh melt to copy
+ * @return an copy of @ melt
+ */
+struct TALER_EXCHANGEDB_RefreshMelt *
+PERF_TALER_EXCHANGEDB_refresh_melt_copy (const struct TALER_EXCHANGEDB_RefreshMelt *melt)
+{
+  struct TALER_EXCHANGEDB_RefreshMelt *copy;
+
+  copy = GNUNET_new (struct TALER_EXCHANGEDB_RefreshMelt);
+  *copy = *melt;
+  copy->coin.denom_sig.rsa_signature =
+    GNUNET_CRYPTO_rsa_signature_dup (melt->coin.denom_sig.rsa_signature);
+  GNUNET_assert (NULL != copy->coin.denom_sig.rsa_signature);
+
+  return copy;
+}
+
+
+/**
+ * Free the internal memory of a #TALER_EXCHANGEDB_RefreshMelt
+ *
+ * @param melt the #TALER_EXCHANGEDB_RefreshMelt to free
+ * @return #GNUNET_OK if the operation was successful, #GNUNET_SYSERROR
+ */
+int
+PERF_TALER_EXCHANGEDB_refresh_melt_free (struct TALER_EXCHANGEDB_RefreshMelt *melt)
+{
+  GNUNET_CRYPTO_rsa_signature_free (melt->coin.denom_sig.rsa_signature);
+  GNUNET_free (melt);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Create a #TALER_EXCHANGEDB_RefreshCommitCoin
+ */
+struct TALER_EXCHANGEDB_RefreshCommitCoin *
+PERF_TALER_EXCHANGEDB_refresh_commit_coin_init ()
+{
+  struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coin;
+  struct TALER_RefreshLinkEncrypted refresh_link;
+
+  commit_coin = GNUNET_new (struct TALER_EXCHANGEDB_RefreshCommitCoin);
+  GNUNET_assert (NULL != commit_coin);
+  {/* refresh_link */
+    refresh_link = (struct TALER_RefreshLinkEncrypted)
+    {
+      .blinding_key_enc = "blinding_key",
+      .blinding_key_enc_size = 13
+    };
+    GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
+                                &refresh_link.coin_priv_enc,
+                                sizeof(struct TALER_CoinSpendPrivateKeyP));
+  }
+  commit_coin->coin_ev = "coin_ev";
+  commit_coin->coin_ev_size = 8;
+  commit_coin->refresh_link = GNUNET_new (struct TALER_RefreshLinkEncrypted);
+  *commit_coin->refresh_link = refresh_link;
+  return commit_coin;
+}
+
+
+/**
+ * Copies a #TALER_EXCHANGEDB_RefreshCommitCoin
+ *
+ * @param commit_coin the commit to copy
+ * @return a copy of @a commit_coin
+ */
+struct TALER_EXCHANGEDB_RefreshCommitCoin *
+PERF_TALER_EXCHANGEDB_refresh_commit_coin_copy (struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coin)
+{
+  struct TALER_EXCHANGEDB_RefreshCommitCoin *copy;
+
+  copy = GNUNET_new (struct TALER_EXCHANGEDB_RefreshCommitCoin);
+  copy->refresh_link = GNUNET_new (struct TALER_RefreshLinkEncrypted);
+  *copy->refresh_link = *commit_coin->refresh_link;
+  return copy;
+}
+
+
+/**
+ * Free a #TALER_EXCHANGEDB_RefreshCommitCoin
+ *
+ * @param commit_coin the coin to free
+ */
+void
+PERF_TALER_EXCHANGEDB_refresh_commit_coin_free (struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coin)
+{
+  GNUNET_free (commit_coin->refresh_link);
+  GNUNET_free (commit_coin);
+}
diff --git a/src/exchangedb/perf_taler_exchangedb_init.h b/src/exchangedb/perf_taler_exchangedb_init.h
new file mode 100644
index 000000000..0ff074108
--- /dev/null
+++ b/src/exchangedb/perf_taler_exchangedb_init.h
@@ -0,0 +1,257 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2014, 2015 GNUnet e.V.
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+   */
+/**
+ * @file exchangedb/perf_taler_exchangedb_init.h
+ * @brief Heler function for creating dummy inputs for the exchange database
+ * @author Nicolas Fournier
+ */
+#ifndef __PERF_TALER_EXCHANGEDB_INIT_H___
+#define __PERF_TALER_EXCHANGEDB_INIT_H___
+
+#include "taler_exchangedb_plugin.h"
+
+
+#define CURRENCY "EUR"
+
+/**
+ * All information about a reserve
+ */
+struct PERF_TALER_EXCHANGEDB_Reserve
+{
+  /**
+   * Information about a rserve available to the Exchange
+   */
+  struct TALER_EXCHANGEDB_Reserve reserve;
+
+  /**
+   * Private key of a reserve
+   */
+  struct GNUNET_CRYPTO_EddsaPrivateKey private;
+};
+
+
+/**
+ * All informations about a coin 
+ */
+struct PERF_TALER_EXCHANGEDB_Coin
+{
+  /**
+   *  Blinded coin, known by the exchange
+   */
+  struct TALER_EXCHANGEDB_CollectableBlindcoin blind;
+
+  /**
+   *  Public key of the coin and othes informations
+   */
+  struct TALER_CoinPublicInfo public_info;
+
+  /**
+   * Private key of the coin
+   */
+  struct GNUNET_CRYPTO_EddsaPrivateKey priv;
+};
+
+
+/**
+ * Generate a dummy DenominationKeyInformation for testing purposes
+ * @return a dummy denomination key
+ */
+struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *
+PERF_TALER_EXCHANGEDB_denomination_init (void);
+
+
+/**
+ * Copies the given denomination
+ * @param reserve the deposit copy
+ * @return a copy of @a deposit; NULL if error
+ */
+struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *
+PERF_TALER_EXCHANGEDB_denomination_copy (
+  const struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki);
+
+
+/**
+ * Free memory of a DenominationKeyIssueInformation
+ * @param dki pointer to the struct to free
+ */
+int
+PERF_TALER_EXCHANGEDB_denomination_free (
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki);
+
+
+/**
+ * Generate a dummy reserve for testing
+ * @return a reserve with 1000 EUR in it
+ */
+struct PERF_TALER_EXCHANGEDB_Reserve *
+PERF_TALER_EXCHANGEDB_reserve_init (void);
+
+
+/**
+ * Copies the given reserve
+ * @param reserve the reserve to copy
+ * @return a copy of @a reserve; NULL if error
+ */
+struct PERF_TALER_EXCHANGEDB_Reserve *
+PERF_TALER_EXCHANGEDB_reserve_copy (const struct PERF_TALER_EXCHANGEDB_Reserve *reserve);
+
+
+/**
+ * Free memory of a reserve
+ * @param reserve pointer to the structure to be freed
+ */
+int
+PERF_TALER_EXCHANGEDB_reserve_free (struct PERF_TALER_EXCHANGEDB_Reserve *reserve);
+
+
+/**
+ * Generate a dummy deposit for testing purposes
+ * @param dki the denomination key used to sign the key
+ */
+struct TALER_EXCHANGEDB_Deposit *
+PERF_TALER_EXCHANGEDB_deposit_init (
+  const struct PERF_TALER_EXCHANGEDB_Coin *coin);
+
+
+/**
+ * Copies the given deposit
+ * @param reserve the deposit copy
+ * @return a copy of @a deposit; NULL if error
+ */
+struct TALER_EXCHANGEDB_Deposit *
+PERF_TALER_EXCHANGEDB_deposit_copy (const struct TALER_EXCHANGEDB_Deposit *deposit);
+
+
+/**
+ * Free memory of a deposit
+ * @param deposit pointer to the structure to free
+ */
+int
+PERF_TALER_EXCHANGEDB_deposit_free (struct TALER_EXCHANGEDB_Deposit *deposit);
+
+
+/**
+ * Generate a coin for testing purpuses
+ * @param dki denomination key used to sign the coin
+ * @param reserve reserve providing the money for the coin
+ * @return a randomly generated CollectableBlindcoin
+ */
+struct PERF_TALER_EXCHANGEDB_Coin *
+PERF_TALER_EXCHANGEDB_coin_init (
+  const struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki,
+  const struct PERF_TALER_EXCHANGEDB_Reserve *reserve);
+
+
+/**
+ * Copies the given coin
+ * @param coin the coin to copy
+ * @return a copy of coin; NULL if error
+ */
+struct PERF_TALER_EXCHANGEDB_Coin *
+PERF_TALER_EXCHANGEDB_coin_copy (
+  const struct PERF_TALER_EXCHANGEDB_Coin *coin);
+
+
+/**
+ * Liberate memory of @a coin
+ * @param coin pointer to the structure to free
+ */
+int
+PERF_TALER_EXCHANGEDB_coin_free (
+  struct PERF_TALER_EXCHANGEDB_Coin *coin);
+
+
+/**
+ * @return a randomly generated refresh session
+ */
+struct TALER_EXCHANGEDB_RefreshSession *
+PERF_TALER_EXCHANGEDB_refresh_session_init (void);
+
+
+/**
+ * @return #GNUNET_OK if the copy was successful, #GNUNET_SYSERR if it wasn't
+ */
+int
+PERF_TALER_EXCHANGEDB_refresh_session_copy (struct TALER_EXCHANGEDB_RefreshSession *session, 
+                                        struct TALER_EXCHANGEDB_RefreshSession *copy);
+
+
+/**
+ * Frees memory of a refresh_session
+ */
+int
+PERF_TALER_EXCHANGEDB_refresh_session_free (
+  struct TALER_EXCHANGEDB_RefreshSession *refresh_session);
+
+
+/**
+ * Create a melt operation
+ *
+ * @param session the refresh session 
+ * @param dki the denomination the melted coin uses
+ * @return a pointer to a #TALER_EXCHANGEDB_RefreshMelt 
+ */
+struct TALER_EXCHANGEDB_RefreshMelt *
+PERF_TALER_EXCHANGEDB_refresh_melt_init (struct GNUNET_HashCode *session,
+                                     struct PERF_TALER_EXCHANGEDB_Coin *coin);
+
+
+/**
+ * Copies the internals of a #TALER_EXCHANGEDB_RefreshMelt
+ * 
+ * @param melt the refresh melt to copy
+ * @return an copy of @ melt
+ */
+struct TALER_EXCHANGEDB_RefreshMelt *
+PERF_TALER_EXCHANGEDB_refresh_melt_copy (const struct TALER_EXCHANGEDB_RefreshMelt *melt);
+
+
+/**
+ * Free the internal memory of a #TALER_EXCHANGEDB_RefreshMelt
+ *
+ * @param melt the #TALER_EXCHANGEDB_RefreshMelt to free
+ * @return #GNUNET_OK if the operation was successful, #GNUNET_SYSERROR
+ */
+int
+PERF_TALER_EXCHANGEDB_refresh_melt_free (struct TALER_EXCHANGEDB_RefreshMelt *melt);
+
+
+/**
+ * Create a #TALER_EXCHANGEDB_RefreshCommitCoin
+ */
+struct TALER_EXCHANGEDB_RefreshCommitCoin *
+PERF_TALER_EXCHANGEDB_refresh_commit_coin_init (void);
+
+
+/**
+ * Copies a #TALER_EXCHANGEDB_RefreshCommitCoin
+ *
+ * @param commit_coin the commit to copy
+ * @return a copy of @a commit_coin
+ */
+struct TALER_EXCHANGEDB_RefreshCommitCoin *
+PERF_TALER_EXCHANGEDB_refresh_commit_coin_copy (struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coin);
+
+
+/**
+ * Free a #TALER_EXCHANGEDB_RefreshCommitCoin
+ *
+ * @param commit_coin the coin to free
+ */
+void
+PERF_TALER_EXCHANGEDB_refresh_commit_coin_free (struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coin);
+
+#endif
diff --git a/src/exchangedb/perf_taler_exchangedb_interpreter.c b/src/exchangedb/perf_taler_exchangedb_interpreter.c
new file mode 100644
index 000000000..75b32cb60
--- /dev/null
+++ b/src/exchangedb/perf_taler_exchangedb_interpreter.c
@@ -0,0 +1,1998 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2014, 2015 GNUnet e.V.
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+   */
+/**
+ * @file exchangedb/perf_taler_exchangedb_interpreter.c
+ * @brief Interpreter library for exchange database performance analysis
+ * @author Nicolas Fournier
+ */
+#include "platform.h"
+#include "perf_taler_exchangedb_interpreter.h"
+#include "perf_taler_exchangedb_init.h"
+#include "gauger.h"
+
+
+/**
+ * Represents the state of the interpreter
+ */
+struct PERF_TALER_EXCHANGEDB_interpreter_state
+{
+  /**
+   * State of the commands
+   */
+  struct PERF_TALER_EXCHANGEDB_Cmd *cmd;
+
+  /**
+   * Database plugin
+   */
+  struct TALER_EXCHANGEDB_Plugin *plugin;
+
+  /**
+   * Current database session
+   */
+  struct TALER_EXCHANGEDB_Session *session;
+
+  /**
+   * The current index of the interpreter
+   */
+  unsigned int i;
+};
+
+
+/**
+ * Free the memory of @a data
+ */
+static void
+data_free (struct PERF_TALER_EXCHANGEDB_Data *data)
+{
+  switch (data->type)
+  {
+    case PERF_TALER_EXCHANGEDB_TIME:
+      if (NULL == data->data.time)
+        break;
+      GNUNET_free (data->data.time);
+      data->data.time = NULL;
+      break;
+
+    case PERF_TALER_EXCHANGEDB_DEPOSIT:
+      if (NULL == data->data.deposit)
+        break;
+      PERF_TALER_EXCHANGEDB_deposit_free (data->data.deposit);
+      data->data.deposit = NULL;
+      break;
+
+    case PERF_TALER_EXCHANGEDB_COIN:
+      if (NULL == data->data.coin)
+        break;
+      PERF_TALER_EXCHANGEDB_coin_free (data->data.coin);
+      data->data.coin = NULL;
+      break;
+
+    case PERF_TALER_EXCHANGEDB_RESERVE:
+      if (NULL == data->data.reserve)
+        break;
+      PERF_TALER_EXCHANGEDB_reserve_free (data->data.reserve);
+      data->data.reserve = NULL;
+      break;
+
+    case PERF_TALER_EXCHANGEDB_DENOMINATION_INFO:
+      if (NULL == data->data.dki)
+        break;
+      PERF_TALER_EXCHANGEDB_denomination_free (data->data.dki);
+      data->data.dki = NULL;
+      break;
+
+    case PERF_TALER_EXCHANGEDB_REFRESH_HASH:
+      if (NULL == data->data.session_hash)
+        break;
+      GNUNET_free (data->data.session_hash);
+      data->data.session_hash = NULL;
+      break;
+
+    case PERF_TALER_EXCHANGEDB_REFRESH_MELT:
+      if (NULL == data->data.refresh_melt)
+        break;
+      PERF_TALER_EXCHANGEDB_refresh_melt_free (data->data.refresh_melt);
+      data->data.refresh_melt = NULL;
+      break;
+
+    case PERF_TALER_EXCHANGEDB_NONE:
+      break;
+  }
+}
+
+
+/**
+ * Copies @a data into @a copy
+ *
+ * @param data the data to be copied
+ * @param[out] copy the copy made
+ */
+static void
+data_copy (const struct PERF_TALER_EXCHANGEDB_Data *data,
+           struct PERF_TALER_EXCHANGEDB_Data *copy)
+{
+  copy->type = data->type;
+  switch (data->type)
+  {
+    case PERF_TALER_EXCHANGEDB_TIME:
+      copy->data.time = GNUNET_new (struct GNUNET_TIME_Absolute);
+      *copy->data.time = *data->data.time;
+      return;
+
+    case PERF_TALER_EXCHANGEDB_DEPOSIT:
+      copy->data.deposit
+        = PERF_TALER_EXCHANGEDB_deposit_copy (data->data.deposit);
+      return;
+
+    case PERF_TALER_EXCHANGEDB_COIN:
+      copy->data.coin
+        = PERF_TALER_EXCHANGEDB_coin_copy (data->data.coin);
+      return;
+
+    case PERF_TALER_EXCHANGEDB_RESERVE:
+      copy->data.reserve
+        = PERF_TALER_EXCHANGEDB_reserve_copy (data->data.reserve);
+      return;
+
+    case PERF_TALER_EXCHANGEDB_DENOMINATION_INFO:
+      copy->data.dki
+        = PERF_TALER_EXCHANGEDB_denomination_copy (data->data.dki);
+      return;
+
+    case PERF_TALER_EXCHANGEDB_REFRESH_HASH:
+      copy-> data.session_hash = GNUNET_new (struct GNUNET_HashCode);
+      *copy->data.session_hash
+        = *data->data.session_hash;
+      break;
+
+    case PERF_TALER_EXCHANGEDB_REFRESH_MELT:
+      copy->data.refresh_melt
+        = PERF_TALER_EXCHANGEDB_refresh_melt_copy (data->data.refresh_melt);
+      break;
+
+    case PERF_TALER_EXCHANGEDB_NONE:
+      break;
+  }
+}
+
+
+/**
+ * Finds the first command in cmd with the name search
+ *
+ * @return the index of the first command with name search
+ * #GNUNET_SYSERR if none found
+ */
+static int
+cmd_find (const struct PERF_TALER_EXCHANGEDB_Cmd *cmd,
+          const char *search)
+{
+  unsigned int i;
+
+  for (i=0; PERF_TALER_EXCHANGEDB_CMD_END != cmd[i].command; i++)
+    if (0 == strcmp (cmd[i].label, search))
+      return i;
+  return GNUNET_SYSERR;
+}
+
+
+/**
+ * Initialization of a command array
+ * and check for the type of the label
+ *
+ * @param cmd the comand array initialized
+ * @return #GNUNET_OK if the initialization was sucessful
+ * #GNUNET_SYSERR if there was a probleb. See the log for details
+ */
+static int
+cmd_init (struct PERF_TALER_EXCHANGEDB_Cmd cmd[])
+{
+  unsigned int i;
+
+  for (i=0; PERF_TALER_EXCHANGEDB_CMD_END != cmd[i].command; i++)
+  {
+    switch (cmd[i].command)
+    {
+      case PERF_TALER_EXCHANGEDB_CMD_END_LOOP:
+        {
+          int ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.end_loop.label_loop);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.end_loop.label_loop);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_CMD_LOOP != cmd[ret].command)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.end_loop.label_loop);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.end_loop.index_loop = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_SAVE_ARRAY:
+        {
+          int ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.save_array.label_save);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.save_array.label_save);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_NONE == cmd[ret].exposed.type)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.save_array.label_save);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.save_array.index_save = ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.save_array.label_loop);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.save_array.label_loop);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_CMD_LOOP != cmd[ret].command)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.save_array.label_loop);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.save_array.index_loop = ret;
+
+          GNUNET_assert (NULL == cmd[i].details.save_array.data_saved);
+          cmd[i].details.save_array.data_saved =
+            GNUNET_new_array (cmd[i].details.save_array.nb_saved,
+                              struct PERF_TALER_EXCHANGEDB_Data);
+          cmd[i].details.save_array.type_saved =
+            cmd[cmd[i].details.save_array.index_save].exposed.type;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_LOAD_ARRAY:
+        {
+          int ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.load_array.label_save);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.load_array.label_save);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_CMD_SAVE_ARRAY != cmd[ret].command)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.load_array.label_save);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.load_array.index_save = ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.load_array.label_loop);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.load_array.label_loop);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_CMD_LOOP != cmd[ret].command)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.load_array.label_loop);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.load_array.index_loop = ret;
+
+          cmd[i].details.load_array.permutation =
+            GNUNET_CRYPTO_random_permute (
+              GNUNET_CRYPTO_QUALITY_WEAK,
+              cmd[cmd[i].details.load_array.index_save].details.save_array.nb_saved);
+          GNUNET_assert (NULL != cmd[i].details.load_array.permutation);
+
+          cmd[i].exposed.type = cmd[cmd[i].details.load_array.index_save].details.save_array.type_saved;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_LOAD_RANDOM:
+        {
+          int ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.load_random.label_save);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.load_random.label_save);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_CMD_SAVE_ARRAY != cmd[ret].command)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.load_random.label_save);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.load_random.index_save = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GAUGER:
+        {
+          int ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.gauger.label_start);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.gauger.label_start);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_TIME != cmd[ret].exposed.type)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.gauger.label_start);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.gauger.index_start = ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.gauger.label_stop);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.gauger.label_stop);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_TIME != cmd[ret].exposed.type)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.gauger.label_stop);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.gauger.index_stop = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_DENOMINATION:
+        {
+          int ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.insert_denomination.label_denom);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.insert_denomination.label_denom);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_DENOMINATION_INFO != cmd[ret].exposed.type)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.insert_denomination.label_denom);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.insert_denomination.index_denom = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_DENOMINATION:
+        {
+          int ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.get_denomination.label_denom);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.get_denomination.label_denom);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_DENOMINATION_INFO != cmd[ret].exposed.type)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.get_denomination.label_denom);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.get_denomination.index_denom = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_RESERVE:
+        {
+          int ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.insert_reserve.label_reserve);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.insert_reserve.label_reserve);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_RESERVE != cmd[ret].exposed.type)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.insert_reserve.label_reserve);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.insert_reserve.index_reserve = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_RESERVE:
+        {
+          int ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.get_reserve.label_reserve);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.get_reserve.label_reserve);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_RESERVE != cmd[ret].exposed.type)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.get_reserve.label_reserve);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.get_reserve.index_reserve = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_RESERVE_HISTORY:
+        {
+          int ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.get_reserve_history.label_reserve);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.get_reserve_history.label_reserve);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_RESERVE != cmd[ret].exposed.type)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.get_reserve_history.label_reserve);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.get_reserve_history.index_reserve = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_CREATE_WITHDRAW:
+        {
+          int ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.create_withdraw.label_dki);
+          {
+            if (GNUNET_SYSERR == ret)
+            {
+              GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                          "%d:Undefined reference to %s\n",
+                          i,
+                          cmd[i].details.create_withdraw.label_dki);
+              return GNUNET_SYSERR;
+            }
+            if (PERF_TALER_EXCHANGEDB_DENOMINATION_INFO != cmd[ret].exposed.type)
+            {
+              GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                          "%d:Wrong type reference to %s\n",
+                          i,
+                          cmd[i].details.create_withdraw.label_dki);
+              return GNUNET_SYSERR;
+            }
+          }
+          cmd[i].details.create_withdraw.index_dki = ret;
+          ret = cmd_find (cmd,
+                          cmd[i].details.create_withdraw.label_reserve);
+          {
+            if (GNUNET_SYSERR == ret)
+            {
+              GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                          "%d:Undefined reference to %s\n",
+                          i,
+                          cmd[i].details.create_withdraw.label_reserve);
+              return GNUNET_SYSERR;
+            }
+            if (PERF_TALER_EXCHANGEDB_RESERVE != cmd[ret].exposed.type)
+            {
+              GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                          "%d:Wrong type reference to %s\n",
+                          i,
+                          cmd[i].details.create_withdraw.label_reserve);
+              return GNUNET_SYSERR;
+            }
+          }
+          cmd[i].details.create_withdraw.index_reserve = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_WITHDRAW:
+        {
+          int ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.insert_withdraw.label_coin);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.insert_withdraw.label_coin);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_COIN != cmd[ret].exposed.type)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.insert_withdraw.label_coin);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.insert_withdraw.index_coin = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_WITHDRAW:
+        {
+          int ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.get_withdraw.label_coin);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.get_withdraw.label_coin);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_COIN != cmd[ret].exposed.type)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.get_withdraw.label_coin);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.get_withdraw.index_coin = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_COIN_TRANSACTION:
+        {
+          int ret;
+          ret = cmd_find (cmd,
+                          cmd[i].details.get_coin_transaction.label_coin);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.get_coin_transaction.label_coin);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_COIN != cmd[ret].exposed.type)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.get_coin_transaction.label_coin);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.get_coin_transaction.index_coin = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_CREATE_DEPOSIT:
+        {
+          int ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.create_deposit.label_coin);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.create_deposit.label_coin);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_COIN != cmd[ret].exposed.type)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.create_deposit.label_coin);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.create_deposit.index_coin = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_DEPOSIT:
+        {
+          int ret;
+
+          ret = cmd_find( cmd,
+                          cmd[i].details.insert_deposit.label_deposit);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.insert_deposit.label_deposit);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_DEPOSIT != cmd[ret].exposed.type)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.insert_deposit.label_deposit);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.insert_deposit.index_deposit = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_DEPOSIT:
+        {
+          int ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.get_deposit.label_deposit);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.get_deposit.label_deposit);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_DEPOSIT != cmd[ret].exposed.type)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.get_deposit.label_deposit);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.get_deposit.index_deposit = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_SESSION:
+        {
+          int ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.get_refresh_session.label_hash);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.get_refresh_session.label_hash);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_REFRESH_HASH != cmd[ret].exposed.type)
+          {   
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.get_refresh_session.label_hash);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.get_refresh_session.index_hash = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_MELT:
+        {
+          int ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.insert_refresh_melt.label_hash);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.insert_refresh_melt.label_hash);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_REFRESH_HASH != cmd[ret].exposed.type)
+          {   
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.insert_refresh_melt.label_hash);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.insert_refresh_melt.index_hash = ret;
+          ret = cmd_find (cmd,
+                          cmd[i].details.insert_refresh_melt.label_coin);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.insert_refresh_melt.label_coin);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_COIN != cmd[ret].exposed.type)
+          {   
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.insert_refresh_melt.label_coin);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.insert_refresh_melt.index_coin = ret;        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_MELT:
+        {
+          int ret;
+          ret = cmd_find (cmd,
+                          cmd[i].details.get_refresh_melt.label_hash);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.get_refresh_melt.label_hash);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_REFRESH_HASH != cmd[ret].exposed.type)
+          {   
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.get_refresh_melt.label_hash);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.get_refresh_melt.index_hash = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_ORDER:
+        {
+          int ret;
+          ret = cmd_find (cmd,
+                          cmd[i].details.insert_refresh_order.label_hash);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.insert_refresh_order.label_hash);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_REFRESH_HASH != cmd[ret].exposed.type)
+          {   
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.insert_refresh_order.label_hash);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.insert_refresh_order.index_hash = ret;
+
+          ret = cmd_find (cmd,
+                          cmd[i].details.insert_refresh_order.label_denom);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.insert_refresh_order.label_denom);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_DENOMINATION_INFO != cmd[ret].exposed.type)
+          {   
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.insert_refresh_order.label_denom);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.insert_refresh_order.index_denom = ret;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_ORDER:
+        {
+          int ret;
+          ret = cmd_find (cmd,
+                          cmd[i].details.get_refresh_order.label_hash);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.get_refresh_order.label_hash);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_REFRESH_HASH != cmd[ret].exposed.type)
+          {   
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.get_refresh_order.label_hash);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.get_refresh_order.index_hash = ret; 
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_COMMIT_COIN:
+       {
+          int ret;
+          ret = cmd_find (cmd,
+                          cmd[i].details.insert_refresh_commit_coin.label_hash);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.insert_refresh_commit_coin.label_hash);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_REFRESH_HASH != cmd[ret].exposed.type)
+          {   
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.insert_refresh_commit_coin.label_hash);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.insert_refresh_commit_coin.index_hash = ret; 
+        } 
+       break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_COMMIT_COIN:
+       {
+          int ret;
+          ret = cmd_find (cmd,
+                          cmd[i].details.get_refresh_commit_coin.label_hash);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.get_refresh_commit_coin.label_hash);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_REFRESH_HASH != cmd[ret].exposed.type)
+          {   
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.get_refresh_commit_coin.label_hash);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.get_refresh_commit_coin.index_hash = ret; 
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_COMMIT_LINK:
+       {
+          int ret;
+          ret = cmd_find (cmd,
+                          cmd[i].details.insert_refresh_commit_link.label_hash);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.insert_refresh_commit_link.label_hash);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_REFRESH_HASH != cmd[ret].exposed.type)
+          {   
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.insert_refresh_commit_link.label_hash);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.insert_refresh_commit_link.index_hash = ret; 
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_COMMIT_LINK:
+       {
+          int ret;
+          ret = cmd_find (cmd,
+                          cmd[i].details.get_refresh_commit_link.label_hash);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.get_refresh_commit_link.label_hash);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_REFRESH_HASH != cmd[ret].exposed.type)
+          {   
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.get_refresh_commit_link.label_hash);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.get_refresh_commit_link.index_hash = ret; 
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_MELT_COMMITMENT:
+       {
+          int ret;
+          ret = cmd_find (cmd,
+                          cmd[i].details.get_melt_commitment.label_hash);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.get_melt_commitment.label_hash);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_REFRESH_HASH != cmd[ret].exposed.type)
+          {   
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.get_melt_commitment.label_hash);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.get_melt_commitment.index_hash = ret; 
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_OUT:
+       {
+          int ret;
+          ret = cmd_find (cmd,
+                          cmd[i].details.insert_refresh_out.label_hash);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.insert_refresh_out.label_hash);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_REFRESH_HASH != cmd[ret].exposed.type)
+          {   
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.insert_refresh_out.label_hash);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.insert_refresh_out.index_hash = ret; 
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_LINK_DATA_LIST:
+       {
+          int ret;
+          ret = cmd_find (cmd,
+                          cmd[i].details.get_link_data_list.label_hash);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.get_link_data_list.label_hash);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_REFRESH_HASH != cmd[ret].exposed.type)
+          {   
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.get_link_data_list.label_hash);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.get_link_data_list.index_hash = ret; 
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_TRANSFER:
+       {
+          int ret;
+          ret = cmd_find (cmd,
+                          cmd[i].details.get_transfer.label_hash);
+          if (GNUNET_SYSERR == ret)
+          {
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Undefined reference to %s\n",
+                        i,
+                        cmd[i].details.get_transfer.label_hash);
+            return GNUNET_SYSERR;
+          }
+          if (PERF_TALER_EXCHANGEDB_REFRESH_HASH != cmd[ret].exposed.type)
+          {   
+            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                        "%d:Wrong type reference to %s\n",
+                        i,
+                        cmd[i].details.get_transfer.label_hash);
+            return GNUNET_SYSERR;
+          }
+          cmd[i].details.get_transfer.index_hash = ret; 
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_END:
+      case PERF_TALER_EXCHANGEDB_CMD_DEBUG:
+      case PERF_TALER_EXCHANGEDB_CMD_LOOP:
+      case PERF_TALER_EXCHANGEDB_CMD_NEW_SESSION:
+      case PERF_TALER_EXCHANGEDB_CMD_START_TRANSACTION:
+      case PERF_TALER_EXCHANGEDB_CMD_COMMIT_TRANSACTION:
+      case PERF_TALER_EXCHANGEDB_CMD_ABORT_TRANSACTION:
+      case PERF_TALER_EXCHANGEDB_CMD_GET_TIME:
+      case PERF_TALER_EXCHANGEDB_CMD_CREATE_DENOMINATION:
+      case PERF_TALER_EXCHANGEDB_CMD_CREATE_RESERVE:
+      case PERF_TALER_EXCHANGEDB_CMD_CREATE_REFRESH_SESSION:
+        break;
+    }
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Free the memory of the command chain
+ */
+static int
+cmd_clean (struct PERF_TALER_EXCHANGEDB_Cmd cmd[])
+{
+  unsigned int i;
+
+  for (i=0; PERF_TALER_EXCHANGEDB_CMD_END != cmd[i].command; i++)
+  {
+    switch (cmd[i].command)
+    {
+      case PERF_TALER_EXCHANGEDB_CMD_SAVE_ARRAY:
+        {
+          unsigned int j;
+
+          for (j = 0; j < cmd[i].details.save_array.nb_saved; j++)
+          {
+            data_free (&cmd[i].details.save_array.data_saved[j]);
+          }
+          GNUNET_free (cmd[i].details.save_array.data_saved);
+          cmd[i].details.save_array.data_saved = NULL;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_LOAD_ARRAY:
+        GNUNET_free (cmd[i].details.load_array.permutation);
+        cmd[i].details.load_array.permutation = NULL;
+        break;
+
+      default:
+        break;
+    }
+    data_free (&cmd[i].exposed);
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Handles the command #PERF_TALER_EXCHANGEDB_CMD_END_LOOP for the interpreter
+ * Cleans the memory at the end of the loop
+ */
+static void
+interpret_end_loop (struct PERF_TALER_EXCHANGEDB_interpreter_state *state)
+{
+  unsigned int i;
+  int jump;
+
+  jump = state->cmd[state->i].details.end_loop.index_loop;
+  // Cleaning up the memory in the loop
+  for (i = jump; i < state->i; i++)
+    data_free (&state->cmd[i].exposed);
+
+  state->cmd[jump].details.loop.curr_iteration++;
+  /* If the loop is not finished */
+  if (state->cmd[jump].details.loop.max_iterations >
+      state->cmd[jump].details.loop.curr_iteration)
+  {
+    /* jump back to the start */
+    state->i = jump;
+  }
+  else
+  {
+    /* Reset the loop counter and continue running */
+    state->cmd[jump].details.loop.curr_iteration = 0;
+  }
+}
+
+
+/**
+ * Part of the interpreter specific to
+ * #PERF_TALER_EXCHANGEDB_CMD_SAVE_ARRAY
+ * Saves the data exposed by another command into
+ * an array in the command specific struct.
+ */
+static void
+interpret_save_array (struct PERF_TALER_EXCHANGEDB_interpreter_state *state)
+{
+  struct PERF_TALER_EXCHANGEDB_Cmd *cmd = &state->cmd[state->i];
+  struct PERF_TALER_EXCHANGEDB_Cmd *save_ref;
+  struct PERF_TALER_EXCHANGEDB_Cmd *loop_ref;
+  int loop_index;
+  int save_index;
+  unsigned int selection_chance;
+
+  loop_index = cmd->details.save_array.index_loop;
+  save_index = cmd->details.save_array.index_save;
+  loop_ref = &state->cmd[loop_index];
+  save_ref = &state->cmd[save_index];
+  /* Array initialization on first loop iteration
+     Alows for nested loops */
+  if (0 == cmd->details.loop.curr_iteration)
+  {
+    cmd->details.save_array.index = 0;
+  }
+  /* The probability distribution of the saved items will be a little biased
+     against the few last items but it should not be a big problem. */
+  selection_chance = loop_ref->details.loop.max_iterations /
+    cmd->details.save_array.nb_saved;
+  /*
+   * If the remaining space is equal to the remaining number of
+   * iterations, the item is automaticly saved.
+   *
+   * Else it is saved only if the random numbre generated is 0
+   */
+  if ( (0 < (cmd->details.save_array.nb_saved -
+             cmd->details.save_array.index) ) &&
+       ( ((loop_ref->details.loop.max_iterations -
+           loop_ref->details.loop.curr_iteration) ==
+          (cmd->details.save_array.nb_saved -
+           cmd->details.save_array.index)) ||
+         (0 == GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
+                                         selection_chance)) ) )
+  {
+    struct PERF_TALER_EXCHANGEDB_Data *save_location;
+    struct PERF_TALER_EXCHANGEDB_Data *item_saved;
+
+    save_location = &cmd->details.save_array.data_saved[cmd->details.save_array.index];
+    item_saved = &save_ref->exposed;
+    data_copy (item_saved, save_location);
+    cmd->details.save_array.index++;
+  }
+}
+
+
+/**
+ * Part of the interpreter specific to
+ * #PERF_TALER_EXCHANGEDB_CMD_LOAD_ARRAY
+ * Gets data from a #PERF_TALER_EXCHANGEDB_CMD_SAVE_ARRAY and exposes a copy
+ */
+static void
+interpret_load_array (struct PERF_TALER_EXCHANGEDB_interpreter_state *state)
+{
+  struct PERF_TALER_EXCHANGEDB_Cmd *cmd = &state->cmd[state->i];
+  unsigned int loop_iter;
+  int loop_index;
+  int save_index;
+  struct PERF_TALER_EXCHANGEDB_Data *loaded_data;
+
+  loop_index = cmd->details.load_array.index_loop;
+  save_index = cmd->details.load_array.index_save;
+  loop_iter = state->cmd[loop_index].details.loop.curr_iteration;
+  {
+    unsigned int i;
+    unsigned int quotient;
+
+    /* In case the iteration number is higher than the amount saved,
+     * the number is run several times in the permutation array */
+    quotient = loop_iter / state->cmd[save_index].details.save_array.nb_saved;
+    loop_iter = loop_iter % state->cmd[save_index].details.save_array.nb_saved;
+    for (i=0; i<=quotient; i++)
+      loop_iter = cmd->details.load_array.permutation[loop_iter];
+  }
+  /* Extracting the data from the loop_indexth indice in save_index
+   * array.
+   */
+  loaded_data = &state->cmd[save_index].details.save_array.data_saved[loop_iter];
+  data_copy (loaded_data,
+             &cmd->exposed);
+}
+
+
+/**
+ * Part of the interpreter specific to
+ * #PERF_TALER_EXCHANGEDB_CMD_LOAD_RANDOM
+ * Get a random element from a #PERF_TALER_EXCHANGEDB_CMD_SAVE_ARRAY and exposes it
+ */
+static void
+interprete_load_random (struct PERF_TALER_EXCHANGEDB_interpreter_state *state)
+{
+  struct PERF_TALER_EXCHANGEDB_Cmd *cmd = &state->cmd[state->i];
+  unsigned int index;
+  int save_index;
+
+  save_index = cmd->details.load_random.index_save;
+  index = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
+                                    state->cmd[save_index].details.save_array.nb_saved);
+  data_copy (&state->cmd[save_index].details.save_array.data_saved[index],
+             &cmd->exposed);
+}
+
+
+/**
+ * Iterate over the commands, acting accordingly at each step
+ *
+ * @param state the current state of the interpreter
+ */
+static int
+interpret (struct PERF_TALER_EXCHANGEDB_interpreter_state *state)
+{
+  for (state->i=0; PERF_TALER_EXCHANGEDB_CMD_END != state->cmd[state->i].command; state->i++)
+  {
+    switch (state->cmd[state->i].command)
+    {
+      case PERF_TALER_EXCHANGEDB_CMD_END:
+        return GNUNET_YES;
+
+      case PERF_TALER_EXCHANGEDB_CMD_DEBUG:
+        GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+                    "%s\n",
+                    state->cmd[state->i].label);
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_LOOP:
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_END_LOOP:
+        interpret_end_loop (state);
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_TIME:
+        state->cmd[state->i].exposed.data.time =
+          GNUNET_new (struct GNUNET_TIME_Absolute);
+        *state->cmd[state->i].exposed.data.time =
+          GNUNET_TIME_absolute_get ();
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GAUGER:
+        {
+          unsigned int start_index;
+          unsigned int stop_index;
+          float ips;
+          struct GNUNET_TIME_Absolute start;
+          struct GNUNET_TIME_Absolute stop;
+          struct GNUNET_TIME_Relative elapsed;
+
+          start_index = state->cmd[state->i].details.gauger.index_start;
+          stop_index = state->cmd[state->i].details.gauger.index_stop;
+          start = *state->cmd[start_index].exposed.data.time;
+          stop = *state->cmd[stop_index].exposed.data.time;
+          elapsed = GNUNET_TIME_absolute_get_difference (start,
+                                                         stop);
+          ips = (1.0 * state->cmd[state->i].details.gauger.divide) / (elapsed.rel_value_us/1000000.0);
+          GAUGER (state->cmd[state->i].details.gauger.category,
+                  state->cmd[state->i].details.gauger.description,
+                  ips,
+                  state->cmd[state->i].details.gauger.unit);
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_NEW_SESSION:
+        state->session = state->plugin->get_session (state->plugin->cls, GNUNET_YES);
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_START_TRANSACTION:
+        state->plugin->start (state->plugin->cls, state->session);
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_COMMIT_TRANSACTION:
+        state->plugin->commit (state->plugin->cls, state->session);
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_ABORT_TRANSACTION:
+        state->plugin->rollback (state->plugin->cls,
+                                 state->session);
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_SAVE_ARRAY:
+        interpret_save_array (state);
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_LOAD_ARRAY:
+        interpret_load_array (state);
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_LOAD_RANDOM:
+        interprete_load_random (state);
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_CREATE_DEPOSIT:
+        {
+          int coin_index;
+          struct TALER_EXCHANGEDB_Deposit *deposit;
+
+          coin_index = state->cmd[state->i].details.create_deposit.index_coin;
+          deposit = PERF_TALER_EXCHANGEDB_deposit_init (state->cmd[coin_index].exposed.data.coin);
+          GNUNET_assert (NULL != deposit);
+          state->cmd[state->i].exposed.data.deposit = deposit;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_DEPOSIT:
+        {
+          int deposit_index;
+          int ret;
+          struct TALER_EXCHANGEDB_Deposit *deposit;
+
+          deposit_index = state->cmd[state->i].details.insert_deposit.index_deposit;
+          deposit = state->cmd[deposit_index].exposed.data.deposit;
+          ret = state->plugin->insert_deposit (state->plugin->cls,
+                                                        state->session,
+                                                        deposit);
+          GNUNET_assert (GNUNET_SYSERR != ret);
+          state->cmd[state->i].exposed.data.deposit = deposit;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_DEPOSIT:
+        {
+          unsigned int source_index;
+          int ret;
+          struct PERF_TALER_EXCHANGEDB_Data *data;
+
+          source_index = state->cmd[state->i].details.get_deposit.index_deposit;
+          data = &state->cmd[source_index].exposed;
+          ret = state->plugin->have_deposit (state->plugin->cls,
+                                             state->session,
+                                             data->data.deposit);
+          GNUNET_assert (GNUNET_SYSERR != ret);
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_CREATE_RESERVE:
+        {
+          struct PERF_TALER_EXCHANGEDB_Reserve *reserve;
+
+          reserve = PERF_TALER_EXCHANGEDB_reserve_init ();
+          state->cmd[state->i].exposed.data.reserve = reserve;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_RESERVE:
+        {
+          unsigned int reserve_index;
+          int ret;
+          struct PERF_TALER_EXCHANGEDB_Reserve *reserve;
+          json_t *details = NULL;
+
+          reserve_index = state->cmd[state->i].details.insert_reserve.index_reserve;
+          reserve = state->cmd[reserve_index].exposed.data.reserve;
+          details = json_pack ("{s:i}","justification",
+                               GNUNET_CRYPTO_random_u32 (
+                                 GNUNET_CRYPTO_QUALITY_WEAK,
+                                 UINT32_MAX));
+          GNUNET_assert (NULL != details);
+          ret = state->plugin->reserves_in_insert (state->plugin->cls,
+                                                   state->session,
+                                                   &reserve->reserve.pub,
+                                                   &reserve->reserve.balance,
+                                                   GNUNET_TIME_absolute_get (),
+                                                   details);
+          GNUNET_assert (GNUNET_SYSERR != ret);
+          json_decref (details);
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_RESERVE:
+        {
+          unsigned int reserve_index;
+          int ret;
+          struct PERF_TALER_EXCHANGEDB_Data *data;
+
+
+          reserve_index = state->cmd[state->i].details.get_reserve.index_reserve;
+          data = &state->cmd[reserve_index].exposed;
+          ret = state->plugin->reserve_get (state->plugin->cls,
+                                            state->session,
+                                            &data->data.reserve->reserve);
+          GNUNET_assert (GNUNET_OK == ret);
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_RESERVE_HISTORY:
+        {
+          unsigned int reserve_index;
+          struct TALER_EXCHANGEDB_ReserveHistory *history;
+          struct PERF_TALER_EXCHANGEDB_Data *data;
+
+          reserve_index = state->cmd[state->i].details.get_reserve_history.index_reserve;
+          data = &state->cmd[reserve_index].exposed;
+          history = state->plugin->get_reserve_history (state->plugin->cls,
+                                                        state->session,
+                                                        &data->data.reserve->reserve.pub);
+          GNUNET_assert (NULL != history);
+          state->plugin->free_reserve_history (state->plugin->cls,
+                                               history);
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_CREATE_DENOMINATION:
+        {
+          struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki =
+            PERF_TALER_EXCHANGEDB_denomination_init ();
+          GNUNET_assert (NULL != dki);
+          state->cmd[state->i].exposed.data.dki = dki;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_DENOMINATION:
+        {
+          unsigned int denom_index;
+          int ret;
+          struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki ;
+
+          denom_index = state->cmd[state->i].details.insert_denomination.index_denom;
+          dki = state->cmd[denom_index].exposed.data.dki;
+          ret = state->plugin->insert_denomination_info (state->plugin->cls,
+                                                         state->session,
+                                                         &dki->denom_pub,
+                                                         &dki->issue);
+          GNUNET_assert (GNUNET_SYSERR != ret);
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_DENOMINATION:
+        {
+          unsigned int denom_index;
+          int ret;
+          struct PERF_TALER_EXCHANGEDB_Data *data;
+
+          denom_index = state->cmd[state->i].details.get_denomination.index_denom; 
+          data = &state->cmd[denom_index].exposed;
+          ret = state->plugin->get_denomination_info (state->plugin->cls,
+                                                      state->session,
+                                                      &data->data.dki->denom_pub,
+                                                      &data->data.dki->issue);
+          GNUNET_assert (GNUNET_SYSERR != ret);
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_CREATE_WITHDRAW:
+        {
+          unsigned int dki_index;
+          unsigned int reserve_index;
+          struct PERF_TALER_EXCHANGEDB_Coin *coin ;
+
+          dki_index     = state->cmd[state->i].details.create_withdraw.index_dki;
+          reserve_index = state->cmd[state->i].details.create_withdraw.index_reserve;
+          coin = PERF_TALER_EXCHANGEDB_coin_init (state->cmd[dki_index].exposed.data.dki,
+                                              state->cmd[reserve_index].exposed.data.reserve);
+          GNUNET_assert (NULL != coin);
+          state->cmd[state->i].exposed.data.coin = coin;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_WITHDRAW:
+        {
+          unsigned int coin_index;
+          int ret;
+          struct PERF_TALER_EXCHANGEDB_Coin *coin ;
+
+          coin_index = state->cmd[state->i].details.insert_withdraw.index_coin;
+          coin = state->cmd[coin_index].exposed.data.coin;
+          ret = state->plugin->insert_withdraw_info (state->plugin->cls,
+                                                     state->session,
+                                                     &coin->blind);
+          GNUNET_assert (GNUNET_SYSERR != ret);
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_WITHDRAW:
+        {
+          unsigned int source_index;
+          int ret;
+          struct PERF_TALER_EXCHANGEDB_Data *data;
+
+          source_index = state->cmd[state->i].details.get_denomination.index_denom;
+          data = &state->cmd[source_index].exposed;
+          ret = state->plugin->get_withdraw_info (state->plugin->cls,
+                                                  state->session,
+                                                  &data->data.coin->blind.h_coin_envelope,
+                                                  &data->data.coin->blind);
+          GNUNET_assert (GNUNET_SYSERR != ret);
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_COIN_TRANSACTION:
+        {
+          unsigned int coin_index;
+          struct PERF_TALER_EXCHANGEDB_Coin *coin;
+          struct TALER_EXCHANGEDB_TransactionList *transactions;
+
+          coin_index = state->cmd[state->i].details.get_coin_transaction.index_coin;
+          coin = state->cmd[coin_index].exposed.data.coin;
+          transactions = state->plugin->get_coin_transactions (state->plugin->cls,
+                                                               state->session,
+                                                               &coin->public_info.coin_pub);
+          GNUNET_assert (transactions != NULL);
+          state->plugin->free_coin_transaction_list (state->plugin->cls,
+                                                     transactions);
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_CREATE_REFRESH_SESSION:
+        {
+          struct GNUNET_HashCode *hash;
+          struct TALER_EXCHANGEDB_RefreshSession *refresh_session;
+
+          hash = GNUNET_new (struct GNUNET_HashCode);
+          refresh_session = PERF_TALER_EXCHANGEDB_refresh_session_init ();
+          GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK,
+                                            hash);
+          state->plugin->create_refresh_session (state->session,
+                                                 state->session,
+                                                 hash,
+                                                 refresh_session);
+          state->cmd[state->i].exposed.data.session_hash = hash;
+          PERF_TALER_EXCHANGEDB_refresh_session_free (refresh_session);
+          GNUNET_free (refresh_session);
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_SESSION:
+        {
+          unsigned int hash_index;
+          struct GNUNET_HashCode *hash;
+          struct TALER_EXCHANGEDB_RefreshSession refresh;
+
+          hash_index = state->cmd[state->i].details.get_refresh_session.index_hash;
+          hash = state->cmd[hash_index].exposed.data.session_hash;
+          state->plugin->get_refresh_session (state->session,
+                                              state->session,
+                                              hash,
+                                              &refresh);
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_MELT:
+        {
+          unsigned int hash_index;
+          unsigned int coin_index;
+          struct GNUNET_HashCode *hash;
+          struct TALER_EXCHANGEDB_RefreshMelt *melt;
+          struct PERF_TALER_EXCHANGEDB_Coin *coin;
+
+          hash_index = state->cmd[state->i].details.insert_refresh_melt.index_hash;
+          coin_index = state->cmd[state->i].details.insert_refresh_melt.index_coin;
+          hash = state->cmd[hash_index].exposed.data.session_hash;
+          coin = state->cmd[coin_index].exposed.data.coin;
+          melt = PERF_TALER_EXCHANGEDB_refresh_melt_init (hash,
+                                                      coin);
+          state->plugin->insert_refresh_melt (state->plugin->cls,
+                                                    state->session,
+                                                    1,
+                                                    melt);
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_MELT:
+        {
+          int ret;
+          unsigned int hash_index;
+          struct GNUNET_HashCode *hash;
+          struct TALER_EXCHANGEDB_RefreshMelt melt;
+
+          hash_index = cmd_find (state->cmd,
+                                 state->cmd[state->i].details.get_refresh_melt.label_hash);
+          hash = state->cmd[hash_index].exposed.data.session_hash;
+          ret = state->plugin->get_refresh_melt (state->plugin->cls,
+                                                 state->session,
+                                                 hash,
+                                                 1,
+                                                 &melt);
+          GNUNET_assert (GNUNET_SYSERR != ret);
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_ORDER:
+        {
+          unsigned int hash_index;
+          unsigned int denom_index;
+          struct GNUNET_HashCode *session_hash;
+          struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *denom;
+
+          hash_index = state->cmd[state->i].details.insert_refresh_order.index_hash;
+          denom_index = state->cmd[state->i].details.insert_refresh_order.index_denom;
+          session_hash = state->cmd[hash_index].exposed.data.session_hash;
+          denom = state->cmd[denom_index].exposed.data.dki;
+          state->plugin->insert_refresh_order (state->plugin->cls,
+                                               state->session,
+                                               session_hash,
+                                               1,
+                                               &denom->denom_pub);
+
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_ORDER:
+        {
+          int hash_index;
+          struct GNUNET_HashCode *hash;
+          struct TALER_DenominationPublicKey denom_pub;
+
+          hash_index = state->cmd[state->i].details.get_refresh_order.index_hash;
+          hash = state->cmd[hash_index].exposed.data.session_hash;
+          state->plugin->get_refresh_order (state->plugin->cls,
+                                            state->session,
+                                            hash,
+                                            1,
+                                            &denom_pub);
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_COMMIT_COIN:
+        {
+          int ret;
+          unsigned int hash_index;
+          struct TALER_EXCHANGEDB_RefreshCommitCoin *refresh_commit;
+
+          hash_index = state->cmd[state->i].details.insert_refresh_commit_coin.index_hash;
+          refresh_commit = PERF_TALER_EXCHANGEDB_refresh_commit_coin_init ();
+          ret = state->plugin->insert_refresh_commit_coins (state->plugin->cls,
+                                                            state->session,
+                                                            state->cmd[hash_index].exposed.data.session_hash,
+                                                            1,
+                                                            1,
+                                                            refresh_commit);
+          GNUNET_assert (GNUNET_OK == ret);                                                  
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_COMMIT_COIN:
+        {
+          unsigned int hash_index;
+          struct TALER_EXCHANGEDB_RefreshCommitCoin refresh_commit;
+            
+          hash_index = state->cmd[state->i].details.insert_refresh_commit_coin.index_hash;
+          state->plugin->get_refresh_commit_coins (state->plugin->cls,
+                                                   state->session,
+                                                   state->cmd[hash_index].exposed.data.session_hash,
+                                                   1,
+                                                   1,
+                                                   &refresh_commit);
+
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_COMMIT_LINK:
+        {
+//          unsigned int hash_index;
+//
+//          hash_index = state->cmd[state->i].details.insert_refresh_commit_link.index_hash;
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_COMMIT_LINK:
+        {
+          int ret;
+          unsigned int hash_index;
+          struct TALER_EXCHANGEDB_RefreshCommitCoin commit_coin;
+
+          hash_index = state->cmd[state->i].details.get_refresh_commit_link.index_hash;
+          ret = state->plugin->get_refresh_commit_coins(state->plugin->cls,
+                                                        state->session,
+                                                        state->cmd[hash_index].exposed.data.session_hash,
+                                                        1,
+                                                        1,
+                                                        &commit_coin);
+          GNUNET_assert (GNUNET_SYSERR != ret);
+        }
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_MELT_COMMITMENT:
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_OUT:
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_LINK_DATA_LIST:
+        break;
+
+      case PERF_TALER_EXCHANGEDB_CMD_GET_TRANSFER:
+        break;
+
+    }
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Runs the commands given in @a cmd, working with
+ * the database referenced by @a db_plugin
+ *
+ * @param db_plugin the connection to the database
+ * @param cmd the commands to run
+ */
+int
+PERF_TALER_EXCHANGEDB_interpret (struct TALER_EXCHANGEDB_Plugin *db_plugin,
+                             struct PERF_TALER_EXCHANGEDB_Cmd cmd[])
+{
+  int ret;
+  struct PERF_TALER_EXCHANGEDB_interpreter_state state =
+  {.i = 0, .cmd = cmd, .plugin = db_plugin};
+
+  ret = cmd_init (cmd);
+  if (GNUNET_SYSERR == ret)
+    return ret;
+  state.session = db_plugin->get_session (db_plugin->cls,
+                                          GNUNET_YES);
+  GNUNET_assert (NULL != state.session);
+  ret = interpret (&state);
+  cmd_clean (cmd);
+  return ret;
+}
+
+
+/**
+ * Initialize the database and run the benchmark
+ *
+ * @param benchmark_name the name of the benchmark, displayed in the logs
+ * @param configuration_file path to the taler configuration file to use
+ * @param init the commands to use for the database initialisation,
+ * if #NULL the standard initialization is used
+ * @param benchmark the commands for the benchmark
+ * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
+ */
+int
+PERF_TALER_EXCHANGEDB_run_benchmark (const char *benchmark_name,
+                                 const char *configuration_file,
+                                 struct PERF_TALER_EXCHANGEDB_Cmd *init,
+                                 struct PERF_TALER_EXCHANGEDB_Cmd *benchmark)
+{
+  struct TALER_EXCHANGEDB_Plugin *plugin;
+  struct GNUNET_CONFIGURATION_Handle *config;
+  int ret = 0;
+  struct PERF_TALER_EXCHANGEDB_Cmd init_def[] =
+  {
+    // Denomination used to create coins
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("00 - Start of interpreter"),
+
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("01 - denomination loop",
+                                     PERF_TALER_EXCHANGEDB_NB_DENOMINATION_INIT),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_START_TRANSACTION (""),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_DENOMINATION ("01 - denomination"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_DENOMINATION ("01 - insert",
+                                                    "01 - denomination"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_COMMIT_TRANSACTION (""),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_SAVE_ARRAY ("01 - save denomination",
+                                           "01 - denomination loop",
+                                           "01 - denomination",
+                                           PERF_TALER_EXCHANGEDB_NB_DENOMINATION_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("",
+                                         "01 - denomination loop"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("01 - init denomination complete"),
+    // End of initialization
+    // Reserve initialization
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("02 - init reserve loop",
+                                     PERF_TALER_EXCHANGEDB_NB_RESERVE_INIT),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_RESERVE ("02 - reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_RESERVE ("02 - insert",
+                                               "02 - reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_SAVE_ARRAY ("02 - save reserve",
+                                           "02 - init reserve loop",
+                                           "02 - reserve",
+                                           PERF_TALER_EXCHANGEDB_NB_RESERVE_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("",
+                                         "02 - init reserve loop"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("02 - reserve init complete"),
+    // End reserve init
+    // Withdrawal initialization
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("03 - init withdraw loop",
+                                     PERF_TALER_EXCHANGEDB_NB_WITHDRAW_INIT),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_START_TRANSACTION (""),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("03 - denomination load",
+                                           "03 - init withdraw loop",
+                                           "01 - save denomination"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("03 - reserve load",
+                                           "03 - init withdraw loop",
+                                           "02 - save reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_WITHDRAW ("03 - withdraw",
+                                                "03 - denomination load",
+                                                "03 - reserve load"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_WITHDRAW ("03 - insert",
+                                                "03 - withdraw"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_COMMIT_TRANSACTION (""),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_SAVE_ARRAY ("03 - save coin",
+                                           "03 - init withdraw loop",
+                                           "03 - withdraw",
+                                           PERF_TALER_EXCHANGEDB_NB_WITHDRAW_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("",
+                                         "03 - init withdraw loop"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("03 - withdraw init complete"),
+    //End of withdrawal initialization
+    //Deposit initialization
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("04 - deposit init loop",
+                                     PERF_TALER_EXCHANGEDB_NB_DEPOSIT_INIT),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_START_TRANSACTION ("04 - start transaction"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("04 - denomination load",
+                                           "04 - deposit init loop",
+                                           "03 - save coin"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_DEPOSIT ("04 - deposit",
+                                               "04 - denomination load"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_COMMIT_TRANSACTION ("04 - commit transaction"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_SAVE_ARRAY ("04 - deposit array",
+                                           "04 - deposit init loop",
+                                           "04 - deposit",
+                                           PERF_TALER_EXCHANGEDB_NB_DEPOSIT_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("04 - deposit init loop end",
+                                         "04 - deposit init loop"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("04 - deposit init complete"),
+    // End of deposit initialization
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END ("end")
+  };
+
+  GNUNET_log_setup (benchmark_name,
+                    "INFO",
+                    NULL);
+  config = GNUNET_CONFIGURATION_create ();
+
+  ret = GNUNET_CONFIGURATION_load (config,
+                                   configuration_file);
+  if (GNUNET_OK != ret)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Error parsing configuration file\n");
+    return GNUNET_SYSERR;
+  }
+  plugin = TALER_EXCHANGEDB_plugin_load (config);
+  if (NULL == plugin)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Error connectiong to the database\n");
+    return ret;
+  }
+  ret = plugin->create_tables (plugin->cls,
+                               GNUNET_YES);
+  if (GNUNET_OK != ret)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Error while creating the database architecture\n");
+    return ret;
+  }
+  /*
+   * Running the initialization
+   */
+  if (NULL == init)
+  {
+    init = init_def;
+  }
+  ret = PERF_TALER_EXCHANGEDB_interpret (plugin,
+                                     init);
+  if (GNUNET_OK != ret)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Error during database initialization\n");
+    return ret;
+  }
+  /*
+   * Running the benchmark
+   */
+  ret = PERF_TALER_EXCHANGEDB_interpret (plugin,
+                                     benchmark);
+  if (GNUNET_OK != ret)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Error while runing the benchmark\n");
+    return ret;
+  }
+  /* Drop tables */
+  {
+    struct TALER_EXCHANGEDB_Session *session;
+
+    session = plugin->get_session (plugin->cls,
+                                   GNUNET_YES);
+    ret = plugin->drop_temporary (plugin->cls,
+                                  session);
+    if (GNUNET_OK != ret)
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                  "Error cleaning the database\n");
+      return ret;
+    }
+  }
+  TALER_EXCHANGEDB_plugin_unload (plugin);
+  GNUNET_CONFIGURATION_destroy (config);
+  return ret;
+}
diff --git a/src/exchangedb/perf_taler_exchangedb_interpreter.h b/src/exchangedb/perf_taler_exchangedb_interpreter.h
new file mode 100644
index 000000000..a83251c60
--- /dev/null
+++ b/src/exchangedb/perf_taler_exchangedb_interpreter.h
@@ -0,0 +1,1319 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchangedb/perf_taler_exchangedb_interpreter.h
+ * @brief Library for performance analysis of the Taler database
+ * @author Nicolas Fournier
+ *
+ * This library contains functions and macro alowing Taler performance analysis
+ * to be written with ease.
+ * To do so, create a #PERF_TALER_EXCHANGEDB_Cmd array and fill it with the commands
+ * to execute in chronological order. Some command have an exposed variable wich
+ * can be reused in other commands.
+ * Macros are available to make the use much easier so feel free to use them
+ * to initialize your own command array.
+ */
+
+#ifndef __PERF_TALER_EXCHANGEDB_INTERPRETER_H__
+#define __PERF_TALER_EXCHANGEDB_INTERPRETER_H__
+
+#include <sys/time.h>
+#include "taler_exchangedb_plugin.h"
+
+
+#define PERF_TALER_EXCHANGEDB_NB_DENOMINATION_INIT  10
+#define PERF_TALER_EXCHANGEDB_NB_DENOMINATION_SAVE  10
+
+#define PERF_TALER_EXCHANGEDB_NB_RESERVE_INIT   100
+#define PERF_TALER_EXCHANGEDB_NB_RESERVE_SAVE   10
+
+#define PERF_TALER_EXCHANGEDB_NB_DEPOSIT_INIT   100
+#define PERF_TALER_EXCHANGEDB_NB_DEPOSIT_SAVE   10
+
+#define PERF_TALER_EXCHANGEDB_NB_WITHDRAW_INIT  100
+#define PERF_TALER_EXCHANGEDB_NB_WITHDRAW_SAVE  10
+
+
+/**
+ * Marks the end of the command chain
+ *
+ * @param _label The label of the command
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_END(_label) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_END, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE \
+}
+
+
+/**
+ * Prints @ _label to stdout
+ *
+ * @param _label The label of the command,
+ *  will be logged each time the command runs
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG(_label) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_DEBUG, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE \
+}
+
+/**
+ * The begining of a loop
+ *
+ * @param _label the label of the loop
+ * @param _iter the number of iterations of the loop
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP(_label, _iter) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_LOOP , \
+  .label = _label , \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE , \
+  .details.loop = { \
+    .max_iterations = _iter , \
+    .curr_iteration = 0 } \
+}
+
+/**
+ * Marks the end of the loop @_label_loop
+ *
+ * @param _label the label of the command
+ * @param _label_loop the label of the loop closed by this command
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP(_label, _label_loop) \
+{\
+  .command = PERF_TALER_EXCHANGEDB_CMD_END_LOOP , \
+  .label = _label , \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE , \
+  .details.end_loop.label_loop = _label_loop \
+}
+
+/**
+ * Saves the time of execution to use for logging with Gauger
+ *
+ * @param _label the label of the command
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME(_label) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_GET_TIME, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_TIME \
+}
+
+/**
+ * Commits the duration between @a _label_start and @a _label_stop
+ * to Gauger with @a _description explaining what was measured.
+ *
+ * @param _label the label of this command
+ * @param _label_start label of the start of the measurment
+ * @param _label_stop label of the end of the measurment
+ * @param _description description of the measure displayed in Gauger
+ * @param _unit the unit of the data measured, typicly something/sec
+ * @param _divide number of measurments in the interval
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_GAUGER(_label, _label_start, _label_stop, _category, _description, _unit, _divide) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_GAUGER, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE, \
+  .details.gauger = { \
+    .label_start = _label_start, \
+    .label_stop = _label_stop, \
+    .category = _category, \
+    .description = _description, \
+    .unit = _unit, \
+    .divide = _divide, \
+  } \
+}
+
+/**
+ * Initiate a database transaction
+ *
+ * @param _label the label of the command
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_START_TRANSACTION(_label) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_START_TRANSACTION, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE, \
+}
+
+/**
+ * Commits a database transaction
+ *
+ * @param _label the label of the command
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_COMMIT_TRANSACTION(_label) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_COMMIT_TRANSACTION, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE, \
+}
+
+/**
+ * Abort the current transaction
+ *
+ * @param _label the label of the command
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_ABORT_TRANSACTION(_label) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_ABORT_TRANSACTION, \
+  .label = _label,
+
+/**
+ * Saves randomly selected items from @a _label_save
+ * Saved items can latter be access using #PERF_TALER_EXCHANGEDB_CMD_LOAD_ARRAY
+ *
+ * @param _label the label of the command, used by other commands to reference it
+ * @param _label_loop the label of the loop the array iterates over
+ * @param _label_save the label of the command which outout is saved by this command
+ * @param _nb_saved the total number of items to be saved
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_SAVE_ARRAY(_label, _label_loop, _label_save, _nb_saved) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_SAVE_ARRAY, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE, \
+  .details.save_array = { \
+    .label_loop = _label_loop, \
+    .label_save = _label_save, \
+    .nb_saved = _nb_saved, \
+  } \
+}
+
+/**
+ * Loads data from a #PERF_TALER_EXCHANGEDB_CMD_SAVE_ARRAY to allow other
+ * commands to access it
+ *
+ * @param _label the label of this command, referenced by commands to access it's outpout
+ * @param _label_loop the label of the loop to iterate over
+ * @param _label_save the label of the #PERF_TALER_EXCHANGEDB_CMD_SAVE_ARRAY providing data
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY(_label, _label_loop, _label_save) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_LOAD_ARRAY, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE, \
+  .details.load_array = { \
+    .label_loop = _label_loop, \
+    .label_save = _label_save \
+  } \
+}
+
+/**
+ * Create a denomination key to use
+ * Exposes a #PERF_TALER_EXCHANGEDB_DENOMINATION_INFO to be used by other commands
+ * @exposed #PERF_TALER_EXCHANGEDB_DENOMINATION_INFO
+ *
+ * @param _label the label of this command
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_DENOMINATION(_label) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_CREATE_DENOMINATION, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_DENOMINATION_INFO, \
+}
+
+/**
+ * Inserts informations about a denomination key in the database
+ *
+ * @param _label the label of this command
+ * @param _label_denom the label of the denomination to insert
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_DENOMINATION(_label, _label_denom) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_INSERT_DENOMINATION, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE, \
+  .details.insert_denomination.label_denom = _label_denom, \
+}
+
+/**
+ * Polls the database about informations regarding a specific denomination key
+ *
+ * @param _label the label of this command
+ * @param _label_denom the label of the command providing information about the denomination key
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_GET_DENOMINATION(_label, _label_denom) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_GET_DENOMINATION, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE, \
+  .details.get_denomination.label_denom = _label_denom \
+}
+
+/**
+ * Create a reserve to be used later
+ * Exposes a #PERF_TALER_EXCHANGEDB_RESERVE
+ *
+ * @param _label the label of the command
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_RESERVE(_label) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_CREATE_RESERVE, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_RESERVE \
+}
+
+/**
+ * Insert a new reserve in the database containing 1000 Euros
+ *
+ * @param _label the name of this command
+ * @param _label_reserve the label of the reserve to insert
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_RESERVE(_label, _label_reserve) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_INSERT_RESERVE, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE, \
+  .details.insert_reserve.label_reserve = _label_reserve \
+}
+
+/**
+ * Polls the database for a secific reserve's details
+ *
+ * @param _label the label of this command
+ * @param _label_reserve the reserve to poll
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_GET_RESERVE(_label, _label_reserve) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_GET_RESERVE, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE, \
+  .details.get_reserve.label_reserve = _label_reserve \
+}
+
+/**
+ * Polls the database for the history of a reserve
+ *
+ * @param _label the label of the command
+ * @param _label_reserve the reserve to examine
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_GET_RESERVE_HISTORY(_label, _label_reserve) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_GET_RESERVE_HISTORY, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE, \
+  .details.get_reserve_history.label_reserve = _label_reserve \
+}
+
+/**
+ * Creates a coin to be used later
+ *
+ * @param _label the label of this command
+ * @param _label_dki denomination key used to sign the coin
+ * @param _label_reserve reserve used to emmit the coin
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_WITHDRAW(_label, _label_dki, _label_reserve) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_CREATE_WITHDRAW, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_COIN, \
+  .details.create_withdraw = {\
+    .label_dki = _label_dki, \
+    .label_reserve = _label_reserve, \
+  } \
+}
+
+/**
+ * Inserts informations about a withdrawal in the database
+ *
+ * @exposes #PERF_TALER_EXCHANGEDB_COIN
+ *
+ * @param _label the label of this command
+ * @param _label_coin the coin to insert
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_WITHDRAW(_label, _label_coin) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_INSERT_WITHDRAW, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE, \
+  .details.insert_withdraw.label_coin = _label_coin\
+}
+
+
+/**
+ * Polls the database about informations regarding a specific withdrawal
+ *
+ * @param _label the label of this command
+ * @param _label_coin the coin to check
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_GET_WITHDRAW(_label, _label_coin) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_GET_WITHDRAW, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE, \
+  .details.get_withdraw.label_coin = _label_coin, \
+}
+
+
+/**
+ * The /reserve/withdraw api call
+ *
+ * Exposes #PERF_TALER_EXCHANGEDB_COIN
+ *
+ * @param _label the label of this command
+ * @param _label_dki the denomination of the created coin
+ * @param _label_reserve the reserve used to provide currency
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_WITHDRAW_SIGN(_label, _label_dki, _label_reserve) \
+  PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_WITHDRAW (_label "withdraw", \
+                                              _label_dki, \
+                                              _label_reserve), \
+  PERF_TALER_EXCHANGEDB_INIT_CMD_GET_DENOMINATION(_label "withdraw info", \
+                                              _label_dki), \
+  PERF_TALER_EXCHANGEDB_INIT_CMD_GET_RESERVE_HISTORY(_label "reserve_history", \
+                                                 _label_reserve), \
+  PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_WITHDRAW(_label "insert withdraw", \
+                                             _label "withdraw")
+
+/**
+ * Create a deposit for use later
+ * @exposes #PERF_TALER_EXCHANGEDB_DEPOSIT
+ *
+ * @param _label the label of this command
+ * @param _label_coin the coin used to pay
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_DEPOSIT(_label, _label_coin) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_CREATE_DEPOSIT, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_DEPOSIT, \
+  .details.create_deposit.label_coin = _label_coin, \
+}
+
+/**
+ * Insert a deposit into the database
+ *
+ * @param _label the label of this command
+ * @param _label_deposit the deposit inseerted
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_DEPOSIT(_label, _label_deposit) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_INSERT_DEPOSIT,\
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE, \
+  .details.insert_deposit.label_deposit = _label_deposit, \
+}
+
+/**
+ * Check if a deposit is in the database
+ *
+ * @param _label the label of this command
+ * @param _label_deposit the deposit to use
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_GET_DEPOSIT(_label, _label_deposit) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_GET_DEPOSIT, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE, \
+  .details.get_deposit.label_deposit = _label_deposit \
+}
+
+/**
+ * Access the transaction history of a coin
+ *
+ * @param _label the label of the command
+ * @param _label_coin the coin which history is checked
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_GET_COIN_TRANSACTION(_label, _label_coin) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_GET_COIN_TRANSACTION, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE, \
+  .details.get_coin_transaction.label_coin = _label_coin \
+}
+
+/**
+ * The /deposit api call
+ *
+ * @param _label the label of the command
+ * @param _label_coin the coin used for the deposit
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_DEPOSIT(_label, _label_coin) \
+  PERF_TALER_EXCHANGEDB_INIT_CMD_GET_COIN_TRANSACTION (_label "coin history", \
+                                                   _label_coin), \
+  PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_DEPOSIT (_label "deposit", \
+                                             _label_coin), \
+  PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_DEPOSIT (_label "insert", \
+                                             _label "deposit")
+/**
+ * Insert informations about a refresh session
+ * melts one coin into another
+ *
+ * @param _label the label of the command
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_REFRESH_SESSION(_label) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_CREATE_REFRESH_SESSION, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_REFRESH_HASH \
+}
+
+/**
+ * Get informations about a refresh session
+ * 
+ * @param _label the label of the command
+ * @param _label_hash the label of the hash to search
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_GET_REFRESH_SESSION(_label, \
+                                                       _label_hash) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_SESSION, \
+  .label = _label, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE \
+}
+
+/**
+ * Insert a melt operation in the database
+ *
+ * @param _label the label of the command
+ * @param _label_hash the label of the hash of the session
+ * @param _label_coin the label of the coin to melt
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_REFRESH_MELT(_label, \
+                                                       _label_hash, \
+                                                       _label_coin) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_MELT, \
+  .label = _label, \
+  .details.insert_refresh_melt.label_hash = _label_hash, \
+  .details.insert_refresh_melt.label_coin = _label_coin, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE \
+}
+
+/**
+ * Get informations about a melt operation
+ *
+ * @param _label the label of the command
+ * @param _label_hash the label of the hash of the refresh session
+ */
+#define PERF_TALER_EXCHANGEDB_INIT_CMD_GET_REFRESH_MELT(_label, \
+                                                    _label_hash) \
+{ \
+  .command = PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_MELT, \
+  .label = _label, \
+  .detail.get_refresh_melt.label_hash = _label_hash, \
+  .exposed.type = PERF_TALER_EXCHANGEDB_NONE \
+}
+
+/**
+ * The type of data stored in #PERF_TALER_EXCHANGEDB_Memory
+ */
+enum PERF_TALER_EXCHANGEDB_Type
+{
+  PERF_TALER_EXCHANGEDB_NONE,
+  PERF_TALER_EXCHANGEDB_TIME,
+  PERF_TALER_EXCHANGEDB_DENOMINATION_INFO,
+  PERF_TALER_EXCHANGEDB_RESERVE,
+  PERF_TALER_EXCHANGEDB_COIN,
+  PERF_TALER_EXCHANGEDB_DEPOSIT,
+  PERF_TALER_EXCHANGEDB_REFRESH_HASH,
+  PERF_TALER_EXCHANGEDB_REFRESH_MELT
+};
+
+
+/**
+ * Structure used to handle several data type
+ */
+struct PERF_TALER_EXCHANGEDB_Data
+{
+  enum PERF_TALER_EXCHANGEDB_Type type;
+
+  /**
+   * Storage for a variety of data type
+   * The data saved should match #type
+   */
+  union PERF_TALER_EXCHANGEDB_Memory
+  {
+    /** #PERF_TALER_EXCHANGEDB_TIME */
+    struct GNUNET_TIME_Absolute *time;
+    /** #PERF_TALER_EXCHANGEDB_DEPOSIT */
+    struct TALER_EXCHANGEDB_Deposit *deposit;
+    /** #PERF_TALER_EXCHANGEDB_COIN */
+    struct PERF_TALER_EXCHANGEDB_Coin *coin;
+    /** #PERF_TALER_EXCHANGEDB_RESERVE */
+    struct PERF_TALER_EXCHANGEDB_Reserve *reserve;
+    /** #PERF_TALER_EXCHANGEDB_DENOMINATION_INFO */
+    struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki;
+    /** #PERF_TALER_EXCHANGEDB_REFRESH_HASH */
+    struct GNUNET_HashCode *session_hash;
+    /** #PERF_TALER_EXCHANGEDB_REFRESH_MELT */
+    struct TALER_EXCHANGEDB_RefreshMelt *refresh_melt;
+  } data;
+};
+
+
+/**
+ * Name of the command
+ */
+enum PERF_TALER_EXCHANGEDB_CMD_Name
+{
+  /**
+   * All comand chain must hace this as their last command
+   */
+  PERF_TALER_EXCHANGEDB_CMD_END,
+
+  /**
+   * Prints it's label
+   */
+  PERF_TALER_EXCHANGEDB_CMD_DEBUG,
+
+  /**
+   * Define the start of al command chain loop
+   */
+  PERF_TALER_EXCHANGEDB_CMD_LOOP,
+
+  /**
+   * Define the end of a command chain loop
+   */
+  PERF_TALER_EXCHANGEDB_CMD_END_LOOP,
+
+  /**
+   * Save the time at which the command was executed
+   */
+  PERF_TALER_EXCHANGEDB_CMD_GET_TIME,
+
+  /**
+   * Upload performance to Gauger
+   */
+  PERF_TALER_EXCHANGEDB_CMD_GAUGER,
+
+  /**
+   * Start a new session
+   */
+  PERF_TALER_EXCHANGEDB_CMD_NEW_SESSION,
+
+  /**
+   * Start a database transaction
+   */
+  PERF_TALER_EXCHANGEDB_CMD_START_TRANSACTION,
+
+  /**
+   * End a database transaction
+   */
+  PERF_TALER_EXCHANGEDB_CMD_COMMIT_TRANSACTION,
+
+  /**
+   * Abort a transaction started with #PERF_TALER_EXCHANGEDB_CMD_START_TRANSACTION
+   */
+  PERF_TALER_EXCHANGEDB_CMD_ABORT_TRANSACTION,
+
+  /**
+   * Saves random deposits from a loop
+   */
+  PERF_TALER_EXCHANGEDB_CMD_SAVE_ARRAY,
+
+  /**
+   * Load items saved earlier in a #PERF_TALER_EXCHANGEDB_CMD_SAVE_ARRAY
+   * The items are loaded in a random order, but all of them will be loaded
+   */
+  PERF_TALER_EXCHANGEDB_CMD_LOAD_ARRAY,
+
+  /**
+   * Loads a random item from a #PERF_TALER_EXCHANGEDB_CMD_SAVE_ARRAY
+   * A random item is loaded each time the command is run
+   */
+  PERF_TALER_EXCHANGEDB_CMD_LOAD_RANDOM,
+
+  /**
+   * Create a denomination to be used later
+   */
+  PERF_TALER_EXCHANGEDB_CMD_CREATE_DENOMINATION,
+
+  /**
+   * Insert informations about a denomination key in the database
+   */
+  PERF_TALER_EXCHANGEDB_CMD_INSERT_DENOMINATION,
+
+  /**
+   * Polls the database for informations about a specific denomination key
+   */
+  PERF_TALER_EXCHANGEDB_CMD_GET_DENOMINATION,
+
+  /**
+   * Create a reserve to be used later
+   */
+  PERF_TALER_EXCHANGEDB_CMD_CREATE_RESERVE,
+
+  /**
+   * Insert currency in a reserve / Create a reserve
+   */
+  PERF_TALER_EXCHANGEDB_CMD_INSERT_RESERVE,
+
+  /**
+   * Get Informations about a reserve
+   */
+  PERF_TALER_EXCHANGEDB_CMD_GET_RESERVE,
+
+  /**
+   * Get the history of a reserve
+   */
+  PERF_TALER_EXCHANGEDB_CMD_GET_RESERVE_HISTORY,
+
+  /**
+   * Create a withdrawal to be used later
+   */
+  PERF_TALER_EXCHANGEDB_CMD_CREATE_WITHDRAW,
+
+  /**
+   * Insert informations about a withdrawal in the database
+   */
+  PERF_TALER_EXCHANGEDB_CMD_INSERT_WITHDRAW,
+
+  /**
+   * Pulls informations about a withdrawal from the database
+   */
+  PERF_TALER_EXCHANGEDB_CMD_GET_WITHDRAW,
+
+  /**
+   * Get the list of all transactions the coin has been in
+   */
+  PERF_TALER_EXCHANGEDB_CMD_GET_COIN_TRANSACTION,
+
+  /**
+   * Create a deposit to be used later
+   */
+  PERF_TALER_EXCHANGEDB_CMD_CREATE_DEPOSIT,
+
+  /**
+   * Insert a deposit into the database
+   */
+  PERF_TALER_EXCHANGEDB_CMD_INSERT_DEPOSIT,
+
+  /**
+   * Check if a deposit is in the database
+   */
+  PERF_TALER_EXCHANGEDB_CMD_GET_DEPOSIT,
+
+  /**
+   * Create a refresh session
+   * The number of melted coins is 1,
+   * The number of exchangeed coins is 1
+   */
+  PERF_TALER_EXCHANGEDB_CMD_CREATE_REFRESH_SESSION,
+
+  /**
+   * Get a refresh session informations
+   */
+  PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_SESSION,
+
+  /**
+   * Insert a refresh melt
+   */
+  PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_MELT,
+
+  /**
+   * Get informations about a refresh melt operation
+   */
+  PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_MELT,
+
+  /**
+   * Insert a melt refresh order
+   */
+  PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_ORDER,
+
+  /**
+   * Get informations about a refresh order
+   */
+  PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_ORDER,
+
+  /**
+   * Insert refresh commit coin
+   */
+  PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_COMMIT_COIN,
+
+  /**
+   * Get refresh commit coin
+   */
+  PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_COMMIT_COIN,
+
+  /**
+   * Insert refresh commit link
+   */
+  PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_COMMIT_LINK,
+
+  /**
+   * Get refresh commit link
+   */
+  PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_COMMIT_LINK,
+
+  /**
+   * Get information avout the melt commit
+   */
+  PERF_TALER_EXCHANGEDB_CMD_GET_MELT_COMMITMENT,
+
+  /**
+   * Insert a new coin into the database after a melt operation
+   */
+  PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_OUT,
+
+  /**
+   * Get the link data list of a coin
+   */
+  PERF_TALER_EXCHANGEDB_CMD_GET_LINK_DATA_LIST,
+
+  /**
+   * Get the shared secret and the transfere public key
+   */
+  PERF_TALER_EXCHANGEDB_CMD_GET_TRANSFER
+
+};
+
+
+/**
+ * Contains extra data required for any command
+ */
+union PERF_TALER_EXCHANGEDB_CMD_Details
+{
+  /**
+   * Extra data requiered for the #PERF_TALER_EXCHANGEDB_CMD_LOOP command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_loopDetails
+  {
+    /**
+     * Maximum number of iteration in the loop
+     */
+    const unsigned int max_iterations;
+
+    /**
+     * The current iteration of the loop
+     */
+    unsigned int curr_iteration;
+  } loop;
+
+  /**
+   * Extra data requiered by the #PERF_TALER_EXCHANGEDB_CMD_END_LOOP command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_endLoopDetails
+  {
+    /**
+     * Label of the loop closed by the command
+     */
+    const char *label_loop;
+    unsigned int index_loop;
+  } end_loop;
+
+  /**
+   * Details about the #PERF_TALER_EXCHANGEDB_CMD_GAUGER  command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_gaugerDetails
+  {
+    /**
+     * Label of the starting timestamp
+     */
+    const char *label_start;
+    unsigned int index_start;
+
+    /**
+     * Label of the ending timestamp
+     */
+    const char *label_stop;
+    unsigned int index_stop;
+
+    /**
+     * The category of the measurment
+     */
+    const char *category;
+
+    /**
+     * Description of the metric, used in Gauger
+     */
+    const char *description;
+
+    /**
+     * The name of the metric beeing used
+     */
+    const char *unit;
+
+    /**
+     * Constant the result needs to be divided by
+     * to get the result per unit
+     */
+    float divide;
+  } gauger;
+
+  /**
+   * Contains extra data requiered by the #PERF_TALER_EXCHANGEDB_CMD_SAVE_ARRAY command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_saveArrayDetails
+  {
+    /**
+     * Number of items to save
+     */
+    unsigned int nb_saved;
+
+    /**
+     * Number of items already saved
+     */
+    unsigned int index;
+
+    /**
+     * Label of the loop it is attached to
+     */
+    const char *label_loop;
+    unsigned int index_loop;
+
+    /**
+     * Label of the command exposing the item
+     */
+    const char *label_save;
+    unsigned int index_save;
+
+    /**
+     * Array of data saved
+     */
+    struct PERF_TALER_EXCHANGEDB_Data *data_saved;
+
+    /**
+     * Type of the data that will be stored in @a data_saved, for
+     * 'static' type checking.
+     */
+    enum PERF_TALER_EXCHANGEDB_Type type_saved;
+
+  } save_array;
+
+  /**
+   * Extra data required for the #PERF_TALER_EXCHANGEDB_CMD_LOAD_ARRAY command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_loadArrayDetails
+  {
+    /**
+     * The loop in which the command is located
+     */
+    const char *label_loop;
+    unsigned int index_loop;
+
+    /**
+     * Label of the command where the items were saved
+     */
+    const char *label_save;
+    unsigned int index_save;
+
+    /**
+     * A permutation array used to randomize the order the items are loaded in
+     */
+    unsigned int *permutation;
+  } load_array;
+
+  /**
+   * Contains data for the #PERF_TALER_EXCHANGEDB_CMD_LOAD_RANDOM command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_loadRandomDetails
+  {
+    /**
+     * The label of the #PERF_TALER_EXCHANGEDB_CMD_SAVE_ARRAY the items will be extracted from
+     */
+    const char *label_save;
+    unsigned int index_save;
+  } load_random;
+
+  /**
+   * Extra data requiered by the #PERF_TALER_EXCHANGEDB_CMD_INSERT_DENOMINATION command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_insertDenominationDetails
+  {
+    /**
+     * The label of the source of the denomination to insert
+     */
+    const char *label_denom;
+    unsigned int index_denom;
+  } insert_denomination;  
+  
+  /**
+   * Extra data requiered by the #PERF_TALER_EXCHANGEDB_CMD_GET_DENOMINATION command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_getDenominationDetails
+  {
+    /**
+     * The label of the source of the denomination to check
+     */
+    const char *label_denom;
+    unsigned int index_denom;
+  } get_denomination;
+
+  /**
+   * Extra data requiered for the #PERF_TALER_EXCHANGEDB_CMD_INSERT_RESERVE command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_insertReserveDetails
+  {
+    /**
+     * The label of the source of the reserve to insert
+     */
+    const char *label_reserve;
+    unsigned int index_reserve;
+  } insert_reserve;
+
+  /**
+   * Extra data requiered for the #PERF_TALER_EXCHANGEDB_CMD_GET_RESERVE command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_getReserveDetails
+  {
+    /**
+     * The label of the source of the reserve to check
+     */
+    const char *label_reserve;
+    unsigned int index_reserve;
+  } get_reserve;
+
+  /**
+   * Extra data requiered for the #PERF_TALER_EXCHANGEDB_CMD_GET_RESERVE_HISTORY command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_getReserveHistoryDetails
+  {
+    /**
+     * The label of the source of the reserve to check
+     */
+    const char *label_reserve;
+    unsigned int index_reserve;
+  } get_reserve_history;
+
+  /**
+   * Extra data related to the #PERF_TALER_EXCHANGEDB_CMD_CREATE_WITHDRAW command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_createWithdrawDetails
+  {
+    /**
+     * label of the denomination key used to sign the coin
+     */
+    const char *label_dki;
+    unsigned int index_dki;
+
+    /**
+     * label of the reserve the money to exchange the coin comes from
+     */
+    const char *label_reserve;
+    unsigned int index_reserve;
+  } create_withdraw;
+
+  /**
+   * data requiered for the #PERF_TALER_EXCHANGEDB_CMD_INSERT_WITHDRAW
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_insertWithdrawDetails
+  {
+    /**
+     * label of the source for the coin information
+     */
+    const char *label_coin;
+    unsigned int index_coin;
+  } insert_withdraw;
+
+  /**
+   * data requiered for the #PERF_TALER_EXCHANGEDB_CMD_GET_WITHDRAW
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_getWithdraw
+  {
+    /**
+     * label of the source for the coin information
+     */
+    const char *label_coin;
+    unsigned int index_coin;
+  } get_withdraw;
+
+  /**
+   * Data requiered for the #PERF_TALER_EXCHANGEDB_CMD_GET_COIN_TRANSACTION command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_getCoinTransactionDetails
+  {
+    /**
+     * The coin which history is checked
+     */
+    const char *label_coin;
+    unsigned int index_coin;
+  } get_coin_transaction;
+
+  /**
+   * Data used by the #PERF_TALER_EXCHANGEDB_CMD_CREATE_DEPOSIT command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_createDepositDetails
+  {
+    /**
+     * Label of the source where the reserve used to create the coin is
+     */
+    const char *label_coin;
+    unsigned int index_coin;
+  } create_deposit;
+
+  /**
+   * Extra data requiered for the #PERF_TALER_EXCHANGEDB_CMD_INSERT_DEPOSIT command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_insertDepositDetails
+  {
+    /**
+     * The label of the source of the deposit to check
+     */
+    const char *label_deposit;
+    unsigned int index_deposit;
+  } insert_deposit;
+
+  /**
+   * Extra data requiered for the #PERF_TALER_EXCHANGEDB_CMD_GET_DEPOSIT command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_getDepositDetails
+  {
+    /**
+     * The label of the source of the deposit to check
+     */
+    const char *label_deposit;
+    unsigned int index_deposit;
+  } get_deposit;
+
+ /**
+   * Data requiered for the #PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_SESSION command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_getRefreshSessionDetails
+  {
+    /**
+     * label of the source of the hash of the session
+     */
+    const char *label_hash;
+    unsigned int index_hash;
+  } get_refresh_session;
+
+  /**
+   * Data requiered for the #PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_MELT command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_insertRefreshMeltDetails
+  {
+    /**
+     * The label of the hash of the refresh session
+     */
+    const char *label_hash;
+    unsigned int index_hash;
+
+    /**
+     * The label of the coin to melt
+     */
+    const char *label_coin;
+    unsigned int index_coin;
+  } insert_refresh_melt;
+
+  /**
+   * Data requiered for the #PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_MELT command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_getRefreshMeltDetails
+  {
+    /**
+     * The label of the hash of the session
+     */
+    const char *label_hash;
+    unsigned int index_hash;
+  } get_refresh_melt;
+
+  /**
+   * Data requiered for the #PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_ORDER command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_insertRefreshOrderDetails
+  {
+   /**
+    * The refresh session hash
+    */
+   const char *label_hash;
+    unsigned int index_hash;
+
+   /**
+    * The new coin denomination
+    */
+   const char *label_denom;
+   unsigned int index_denom;
+  } insert_refresh_order;
+
+  /**
+   * Data requiered for the #PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_ORDER command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_getRefreshOrderDetails
+  {
+    /**
+     * The session hash
+     */
+    const char *label_hash;
+    unsigned int index_hash;
+
+  } get_refresh_order;
+
+  /**
+   * Data requiered for the #PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_COMMIT_COIN command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_insertRefreshCommitCoinDetails
+  {
+    /**
+     * The refresh session hash
+     */
+    const char *label_hash;
+    unsigned int index_hash;
+
+  } insert_refresh_commit_coin;
+
+  /**
+   * Data requiered for the #PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_COMMIT_COIN command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_getRefreshCommitCoinDetails
+  {
+    /**
+     * The refresh session hash
+     */
+    const char *label_hash;
+    unsigned int index_hash;
+
+  } get_refresh_commit_coin;
+
+  /**
+   * Data requiered for the #PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_COMMIT_LINK command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_insertRefreshCommitLinkDetails
+  {
+    /**
+     * The refresh session hash
+     */
+    const char *label_hash;
+    unsigned int index_hash;
+
+  } insert_refresh_commit_link;
+
+  /**
+   * Data requiered by the #PERF_TALER_EXCHANGEDB_CMD_GET_REFRESH_COMMIT_LINK command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_getRefreshCommitLinkDetails
+  {
+    /**
+     * The refresh session hash
+     */
+    const char *label_hash;
+    unsigned int index_hash;
+  } get_refresh_commit_link;
+
+  /**
+   * Data requiered for the #PERF_TALER_EXCHANGEDB_CMD_GET_MELT_COMMITMENT command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_getMeltCommitmentDaetails
+  {
+    /**
+     * The refresh session hash
+     */
+    const char *label_hash;
+    unsigned int index_hash;
+  } get_melt_commitment;
+
+  /**
+   * Data requiered by the #PERF_TALER_EXCHANGEDB_CMD_INSERT_REFRESH_OUT command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_insertRefreshOutDetails
+  {
+    /**
+     * The refresh session hash
+     */
+    const char *label_hash;
+    unsigned int index_hash;
+  } insert_refresh_out;
+
+  /**
+   * Data requiered by the #PERF_TALER_EXCHANGEDB_CMD_GET_LINK_DATA_LIST command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_getLinkDataListDetails
+  {
+    /**
+     * The refresh session hash
+     */
+    const char *label_hash;
+    unsigned int index_hash;
+  } get_link_data_list;
+
+  /**
+   * Data requiered by the #PERF_TALER_EXCHANGEDB_CMD_GET_TRANSFER command
+   */
+  struct PERF_TALER_EXCHANGEDB_CMD_getTransferDetails
+  {
+    /**
+     * The refresh session hash
+     */
+    const char *label_hash;
+    unsigned int index_hash;
+  } get_transfer;
+
+};
+
+
+/**
+ * Command to be interpreted.
+ */
+struct PERF_TALER_EXCHANGEDB_Cmd
+{
+  /**
+   *  Type of the command
+   */
+  enum PERF_TALER_EXCHANGEDB_CMD_Name command;
+
+  /**
+   * Label to refer to the command
+   */
+  const char *label;
+
+  /**
+   * Command specific data
+   */
+  union PERF_TALER_EXCHANGEDB_CMD_Details details;
+
+  /**
+   * Data easily accessible
+   */
+  struct PERF_TALER_EXCHANGEDB_Data exposed;
+};
+
+
+/**
+ * Run a benchmark
+ *
+ * @param benchmark_name the name of the benchmark, displayed in the logs
+ * @param configuration_file path to the taler configuration file to use
+ * @param init the commands to use for the database initialisation,
+ * if #NULL the standard initialization is used
+ * @param benchmark the commands for the benchmark
+ * @return GNUNET_OK upon success; GNUNET_SYSERR upon failure
+ */
+int
+PERF_TALER_EXCHANGEDB_run_benchmark (const char *benchmark_name,
+                                 const char *configuration_file,
+                                 struct PERF_TALER_EXCHANGEDB_Cmd *init,
+                                 struct PERF_TALER_EXCHANGEDB_Cmd *benchmark);
+
+
+/**
+ * Runs the command array @a cmd
+ * using @a db_plugin to connect to the database
+ *
+ * @param db_plugin the connection to the database
+ * @param cmd the commands to run
+ */
+int
+PERF_TALER_EXCHANGEDB_interpret(
+  struct TALER_EXCHANGEDB_Plugin *db_plugin,
+  struct PERF_TALER_EXCHANGEDB_Cmd cmd[]);
+
+
+/**
+ * Check if the given command array is syntaxicly correct
+ * This will check if the label are corrects but will not check if
+ * they are pointing to an apropriate command.
+ *
+ * @param cmd the command array to check
+ * @return #GNUNET_OK is @a cmd is correct; #GNUNET_SYSERR if it is'nt
+ */
+int
+PERF_TALER_EXCHANGEDB_check (const struct PERF_TALER_EXCHANGEDB_Cmd *cmd);
+
+#endif
diff --git a/src/exchangedb/perf_taler_exchangedb_values.h b/src/exchangedb/perf_taler_exchangedb_values.h
new file mode 100644
index 000000000..c3b50fea2
--- /dev/null
+++ b/src/exchangedb/perf_taler_exchangedb_values.h
@@ -0,0 +1,25 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2014, 2015 GNUnet e.V.
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+   */
+/**
+ * @file exchangedb/perf_taler_exchangedb_values.h
+ * @brief Values for tweaking the performance analysis
+ * @author Nicolas Fournier
+ */
+#ifndef __PERF_TALER_EXCHANGEDB__VALUES_H__
+#define __PERF_TALER_EXCHANGEDB__VALUES_H__
+
+
+#endif
diff --git a/src/exchangedb/plugin_exchangedb_common.c b/src/exchangedb/plugin_exchangedb_common.c
new file mode 100644
index 000000000..c8e689cfd
--- /dev/null
+++ b/src/exchangedb/plugin_exchangedb_common.c
@@ -0,0 +1,162 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchangedb/plugin_exchangedb_common.c
+ * @brief Functions shared across plugins, this file is meant to be
+ *        included in each plugin.
+ * @author Christian Grothoff
+ */
+
+/**
+ * Free memory associated with the given reserve history.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state (unused)
+ * @param rh history to free.
+ */
+static void
+common_free_reserve_history (void *cls,
+                             struct TALER_EXCHANGEDB_ReserveHistory *rh)
+{
+  struct TALER_EXCHANGEDB_BankTransfer *bt;
+  struct TALER_EXCHANGEDB_CollectableBlindcoin *cbc;
+  struct TALER_EXCHANGEDB_ReserveHistory *backref;
+
+  while (NULL != rh)
+  {
+    switch(rh->type)
+    {
+    case TALER_EXCHANGEDB_RO_BANK_TO_EXCHANGE:
+      bt = rh->details.bank;
+      if (NULL != bt->wire)
+        json_decref (bt->wire);
+      GNUNET_free (bt);
+      break;
+    case TALER_EXCHANGEDB_RO_WITHDRAW_COIN:
+      cbc = rh->details.withdraw;
+      GNUNET_CRYPTO_rsa_signature_free (cbc->sig.rsa_signature);
+      GNUNET_CRYPTO_rsa_public_key_free (cbc->denom_pub.rsa_public_key);
+      GNUNET_free (cbc);
+      break;
+    }
+    backref = rh;
+    rh = rh->next;
+    GNUNET_free (backref);
+  }
+}
+
+
+/**
+ * Free memory of the link data list.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state (unused)
+ * @param ldl link data list to release
+ */
+static void
+common_free_link_data_list (void *cls,
+                            struct TALER_EXCHANGEDB_LinkDataList *ldl)
+{
+  struct TALER_EXCHANGEDB_LinkDataList *next;
+
+  while (NULL != ldl)
+  {
+    next = ldl->next;
+    GNUNET_free (ldl->link_data_enc);
+    GNUNET_free (ldl);
+    ldl = next;
+  }
+}
+
+
+/**
+ * Free linked list of transactions.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state (unused)
+ * @param list list to free
+ */
+static void
+common_free_coin_transaction_list (void *cls,
+                                   struct TALER_EXCHANGEDB_TransactionList *list)
+{
+  struct TALER_EXCHANGEDB_TransactionList *next;
+
+  while (NULL != list)
+  {
+    next = list->next;
+
+    switch (list->type)
+    {
+    case TALER_EXCHANGEDB_TT_DEPOSIT:
+      json_decref (list->details.deposit->wire);
+      GNUNET_CRYPTO_rsa_public_key_free (list->details.deposit->coin.denom_pub.rsa_public_key);
+      GNUNET_CRYPTO_rsa_signature_free (list->details.deposit->coin.denom_sig.rsa_signature);
+      GNUNET_free (list->details.deposit);
+      break;
+    case TALER_EXCHANGEDB_TT_REFRESH_MELT:
+      GNUNET_free (list->details.melt);
+      break;
+    }
+    GNUNET_free (list);
+    list = next;
+  }
+}
+
+
+/**
+ * Free melt commitment data.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state (unused)
+ * @param mc data structure to free
+ */
+static void
+common_free_melt_commitment (void *cls,
+                             struct TALER_EXCHANGEDB_MeltCommitment *mc)
+{
+  unsigned int i;
+  unsigned int k;
+
+  if (NULL != mc->melts)
+  {
+    for (i=0;i<mc->num_oldcoins;i++)
+    {
+      GNUNET_CRYPTO_rsa_signature_free (mc->melts[i].coin.denom_sig.rsa_signature);
+      GNUNET_CRYPTO_rsa_public_key_free (mc->melts[i].coin.denom_pub.rsa_public_key);
+    }
+    GNUNET_free (mc->melts);
+  }
+  if (NULL != mc->denom_pubs)
+  {
+    for (i=0;i<mc->num_newcoins;i++)
+      if (NULL != mc->denom_pubs[i].rsa_public_key)
+        GNUNET_CRYPTO_rsa_public_key_free (mc->denom_pubs[i].rsa_public_key);
+    GNUNET_free (mc->denom_pubs);
+  }
+  for (k=0;k<TALER_CNC_KAPPA;k++)
+  {
+    if (NULL != mc->commit_coins[k])
+    {
+      for (i=0;i<mc->num_newcoins;i++)
+      {
+        GNUNET_free (mc->commit_coins[k][i].refresh_link);
+        GNUNET_free (mc->commit_coins[k][i].coin_ev);
+      }
+      GNUNET_free (mc->commit_coins[k]);
+    }
+    GNUNET_free_non_null (mc->commit_links[k]);
+  }
+  GNUNET_free (mc);
+}
+
+/* end of plugin_exchangedb_common.c */
diff --git a/src/exchangedb/plugin_exchangedb_postgres.c b/src/exchangedb/plugin_exchangedb_postgres.c
new file mode 100644
index 000000000..0395c208e
--- /dev/null
+++ b/src/exchangedb/plugin_exchangedb_postgres.c
@@ -0,0 +1,4295 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+
+/**
+ * @file plugin_exchangedb_postgres.c
+ * @brief Low-level (statement-level) Postgres database access for the exchange
+ * @author Florian Dold
+ * @author Christian Grothoff
+ * @author Sree Harsha Totakura
+ */
+#include "platform.h"
+#include "taler_pq_lib.h"
+#include "taler_exchangedb_plugin.h"
+#include <pthread.h>
+#include <libpq-fe.h>
+
+#include "plugin_exchangedb_common.c"
+
+/**
+ * For testing / experiments, we set the Postgres schema to
+ * #TALER_TEMP_SCHEMA_NAME so we can easily purge everything
+ * associated with a test.  We *also* should use the database
+ * "talercheck" instead of "taler" for testing, but we're doing
+ * both: better safe than sorry.
+ */
+#define TALER_TEMP_SCHEMA_NAME "taler_temporary"
+
+/**
+ * Log a query error.
+ *
+ * @param result PQ result object of the query that failed
+ */
+#define QUERY_ERR(result)                          \
+  GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Query failed at %s:%u: %s\n", __FILE__, __LINE__, PQresultErrorMessage (result))
+
+
+/**
+ * Log a really unexpected PQ error.
+ *
+ * @param result PQ result object of the PQ operation that failed
+ */
+#define BREAK_DB_ERR(result) do { \
+    GNUNET_break (0); \
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Database failure: %s\n", PQresultErrorMessage (result)); \
+  } while (0)
+
+
+/**
+ * Shorthand for exit jumps.  Logs the current line number
+ * and jumps to the "EXITIF_exit" label.
+ *
+ * @param cond condition that must be TRUE to exit with an error
+ */
+#define EXITIF(cond)                                              \
+  do {                                                            \
+    if (cond) { GNUNET_break (0); goto EXITIF_exit; }             \
+  } while (0)
+
+
+/**
+ * Execute an SQL statement and log errors on failure. Must be
+ * run in a function that has an "SQLEXEC_fail" label to jump
+ * to in case the SQL statement failed.
+ *
+ * @param conn database connection
+ * @param sql SQL statement to run
+ */
+#define SQLEXEC_(conn, sql)                                             \
+  do {                                                                  \
+    PGresult *result = PQexec (conn, sql);                              \
+    if (PGRES_COMMAND_OK != PQresultStatus (result))                    \
+    {                                                                   \
+      BREAK_DB_ERR (result);                                            \
+      PQclear (result);                                                 \
+      goto SQLEXEC_fail;                                                \
+    }                                                                   \
+    PQclear (result);                                                   \
+  } while (0)
+
+
+/**
+ * Run an SQL statement, ignoring errors and clearing the result.
+ *
+ * @param conn database connection
+ * @param sql SQL statement to run
+ */
+#define SQLEXEC_IGNORE_ERROR_(conn, sql)                                \
+  do {                                                                  \
+    PGresult *result = PQexec (conn, sql);                              \
+    PQclear (result);                                                   \
+  } while (0)
+
+
+/**
+ * Handle for a database session (per-thread, for transactions).
+ */
+struct TALER_EXCHANGEDB_Session
+{
+  /**
+   * Postgres connection handle.
+   */
+  PGconn *conn;
+};
+
+
+/**
+ * Type of the "cls" argument given to each of the functions in
+ * our API.
+ */
+struct PostgresClosure
+{
+
+  /**
+   * Thread-local database connection.
+   * Contains a pointer to `PGconn` or NULL.
+   */
+  pthread_key_t db_conn_threadlocal;
+
+  /**
+   * Database connection string, as read from
+   * the configuration.
+   */
+  char *connection_cfg_str;
+};
+
+
+
+/**
+ * Set the given connection to use a temporary schema
+ *
+ * @param db the database connection
+ * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon error
+ */
+static int
+set_temporary_schema (PGconn *db)
+{
+  SQLEXEC_(db,
+           "CREATE SCHEMA IF NOT EXISTS " TALER_TEMP_SCHEMA_NAME ";"
+           "SET search_path to " TALER_TEMP_SCHEMA_NAME ";");
+  return GNUNET_OK;
+ SQLEXEC_fail:
+  return GNUNET_SYSERR;
+}
+
+
+/**
+ * Drop the temporary taler schema.  This is only useful for testcases
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database session to use
+ * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
+ */
+static int
+postgres_drop_temporary (void *cls,
+                         struct TALER_EXCHANGEDB_Session *session)
+{
+  GNUNET_log (GNUNET_ERROR_TYPE_INFO,
+              "Dropping temporary tables\n");
+  SQLEXEC_ (session->conn,
+            "DROP SCHEMA " TALER_TEMP_SCHEMA_NAME " CASCADE;");
+  return GNUNET_OK;
+ SQLEXEC_fail:
+  return GNUNET_SYSERR;
+}
+
+
+/**
+ * Function called by libpq whenever it wants to log something.
+ * We already log whenever we care, so this function does nothing
+ * and merely exists to silence the libpq logging.
+ *
+ * @param arg NULL
+ * @param res information about some libpq event
+ */
+static void
+pq_notice_receiver_cb (void *arg,
+                       const PGresult *res)
+{
+  /* do nothing, intentionally */
+}
+
+
+/**
+ * Function called by libpq whenever it wants to log something.
+ * We log those using the Taler logger.
+ *
+ * @param arg NULL
+ * @param message information about some libpq event
+ */
+static void
+pq_notice_processor_cb (void *arg,
+                        const char *message)
+{
+  GNUNET_log_from (GNUNET_ERROR_TYPE_INFO,
+                   "pq",
+                   "%s",
+                   message);
+}
+
+
+/**
+ * Create the necessary tables if they are not present
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param temporary should we use a temporary schema
+ * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
+ */
+static int
+postgres_create_tables (void *cls,
+                        int temporary)
+{
+  struct PostgresClosure *pc = cls;
+  PGconn *conn;
+
+  conn = PQconnectdb (pc->connection_cfg_str);
+  if (CONNECTION_OK != PQstatus (conn))
+  {
+    TALER_LOG_ERROR ("Database connection failed: %s\n",
+                     PQerrorMessage (conn));
+    PQfinish (conn);
+    return GNUNET_SYSERR;
+  }
+  PQsetNoticeReceiver (conn,
+                       &pq_notice_receiver_cb,
+                       NULL);
+  PQsetNoticeProcessor (conn,
+                        &pq_notice_processor_cb,
+                        NULL);
+  if ( (GNUNET_YES == temporary) &&
+       (GNUNET_SYSERR == set_temporary_schema (conn)))
+  {
+    PQfinish (conn);
+    return GNUNET_SYSERR;
+  }
+#define SQLEXEC(sql) SQLEXEC_(conn, sql);
+#define SQLEXEC_INDEX(sql) SQLEXEC_IGNORE_ERROR_(conn, sql);
+  /* Denomination table for holding the publicly available information of
+     denominations keys.  The denominations are to be referred to by using
+     foreign keys.  The denominations are deleted by a housekeeping tool;
+     hence, do not use `ON DELETE CASCADE' on these rows in the tables
+     referencing these rows */
+  SQLEXEC ("CREATE TABLE IF NOT EXISTS denominations"
+           "(pub BYTEA PRIMARY KEY"
+           ",master_pub BYTEA NOT NULL CHECK (LENGTH(master_pub)=32)"
+           ",master_sig BYTEA NOT NULL CHECK (LENGTH(master_sig)=64)"
+           ",valid_from INT8 NOT NULL"
+           ",expire_withdraw INT8 NOT NULL"
+           ",expire_spend INT8 NOT NULL"
+           ",expire_legal INT8 NOT NULL"
+           ",coin_val INT8 NOT NULL" /* value of this denom */
+           ",coin_frac INT4 NOT NULL" /* fractional value of this denom */
+           ",coin_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL" /* assuming same currency for fees */
+           ",fee_withdraw_val INT8 NOT NULL"
+           ",fee_withdraw_frac INT4 NOT NULL"
+           ",fee_withdraw_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
+           ",fee_deposit_val INT8 NOT NULL"
+           ",fee_deposit_frac INT4 NOT NULL"
+           ",fee_deposit_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
+           ",fee_refresh_val INT8 NOT NULL"
+           ",fee_refresh_frac INT4 NOT NULL"
+           ",fee_refresh_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
+           ")");
+  /* reserves table is for summarization of a reserve.  It is updated when new
+     funds are added and existing funds are withdrawn.  The 'expiration_date'
+     can be used to eventually get rid of reserves that have not been used
+     for a very long time (either by refunding the owner or by greedily
+     grabbing the money, depending on the Exchange's terms of service) */
+  SQLEXEC ("CREATE TABLE IF NOT EXISTS reserves"
+           "(reserve_pub BYTEA PRIMARY KEY"
+           ",current_balance_val INT8 NOT NULL"
+           ",current_balance_frac INT4 NOT NULL"
+           ",current_balance_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
+           ",expiration_date INT8 NOT NULL"
+           ")");
+  /* index on reserves table */
+  SQLEXEC_INDEX ("CREATE INDEX reserves_reserve_pub_index ON "
+                 "reserves (reserve_pub)");
+  /* reserves_in table collects the transactions which transfer funds
+     into the reserve.  The rows of this table correspond to each
+     incoming transaction. */
+  SQLEXEC("CREATE TABLE IF NOT EXISTS reserves_in"
+          "(reserve_pub BYTEA REFERENCES reserves (reserve_pub) ON DELETE CASCADE"
+          ",balance_val INT8 NOT NULL"
+          ",balance_frac INT4 NOT NULL"
+          ",balance_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
+          ",details TEXT NOT NULL "
+          ",execution_date INT8 NOT NULL"
+          ",PRIMARY KEY (reserve_pub,details)"
+          ");");
+  /* Create indices on reserves_in */
+  SQLEXEC_INDEX ("CREATE INDEX reserves_in_reserve_pub_index"
+		 " ON reserves_in (reserve_pub);");
+  SQLEXEC_INDEX ("CREATE INDEX reserves_in_reserve_pub_details_index"
+		 " ON reserves_in (reserve_pub,details);");
+  SQLEXEC_INDEX ("CREATE INDEX execution_index"
+		 " ON reserves_in (execution_date);");
+  /* Table with the withdraw operations that have been performed on a reserve.
+     The 'h_blind_ev' is the hash of the blinded coin. It serves as a primary
+     key, as (broken) clients that use a non-random coin and blinding factor
+     should fail to even withdraw, as otherwise the coins will fail to deposit
+     (as they really must be unique). */
+  SQLEXEC ("CREATE TABLE IF NOT EXISTS reserves_out"
+           "(h_blind_ev BYTEA PRIMARY KEY"
+           ",denom_pub BYTEA NOT NULL REFERENCES denominations (pub)"
+           ",denom_sig BYTEA NOT NULL"
+           ",reserve_pub BYTEA NOT NULL CHECK (LENGTH(reserve_pub)=32) REFERENCES reserves (reserve_pub) ON DELETE CASCADE"
+           ",reserve_sig BYTEA NOT NULL CHECK (LENGTH(reserve_sig)=64)"
+           ",execution_date INT8 NOT NULL"
+           ",amount_with_fee_val INT8 NOT NULL"
+           ",amount_with_fee_frac INT4 NOT NULL"
+           ",amount_with_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
+           ",withdraw_fee_val INT8 NOT NULL"
+           ",withdraw_fee_frac INT4 NOT NULL"
+           ",withdraw_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
+           ");");
+  /* Index blindcoins(reserve_pub) for get_reserves_out statement */
+  SQLEXEC_INDEX ("CREATE INDEX reserves_out_reserve_pub_index ON"
+                 " reserves_out (reserve_pub)");
+  SQLEXEC_INDEX ("CREATE INDEX reserves_out_h_blind_ev_index ON "
+                 "reserves_out (h_blind_ev)");
+  /* Table with coins that have been (partially) spent, used to track
+     coin information only once. */
+  SQLEXEC("CREATE TABLE IF NOT EXISTS known_coins "
+          "(coin_pub BYTEA NOT NULL PRIMARY KEY"
+          ",denom_pub BYTEA NOT NULL REFERENCES denominations (pub)"
+          ",denom_sig BYTEA NOT NULL"
+          ")");
+  /**
+   * The DB will show negative values for some values of the following fields as
+   * we use them as 16 bit unsigned integers
+   *   @a num_oldcoins
+   *   @a num_newcoins
+   * Do not do arithmetic in SQL on these fields.
+   * NOTE: maybe we should instead forbid values >= 2^15 categorically?
+   */
+  SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_sessions "
+          "(session_hash BYTEA PRIMARY KEY CHECK (LENGTH(session_hash)=64)"
+          ",num_oldcoins INT2 NOT NULL"
+          ",num_newcoins INT2 NOT NULL"
+          ",noreveal_index INT2 NOT NULL"
+          ")");
+  /* Table with coins that have been melted.  Gives the coin's public
+     key (coin_pub), the melting session, the index of this coin in that
+     session, the signature affirming the melting and the amount that
+     this coin contributed to the melting session.
+  */
+  SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_melts "
+          "(coin_pub BYTEA NOT NULL REFERENCES known_coins (coin_pub)"
+          ",session_hash BYTEA NOT NULL REFERENCES refresh_sessions (session_hash)"
+          ",oldcoin_index INT2 NOT NULL"
+          ",coin_sig BYTEA NOT NULL CHECK(LENGTH(coin_sig)=64)"
+          ",amount_with_fee_val INT8 NOT NULL"
+          ",amount_with_fee_frac INT4 NOT NULL"
+          ",amount_with_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
+          ",melt_fee_val INT8 NOT NULL"
+          ",melt_fee_frac INT4 NOT NULL"
+          ",melt_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
+          ",PRIMARY KEY (session_hash, oldcoin_index)" /* a coin can be used only
+                                                 once in a refresh session */
+          ") ");
+  /* Table with information about the desired denominations to be created
+     during a refresh operation; contains the denomination key for each
+     of the coins (for a given refresh session) */
+  SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_order "
+          "(session_hash BYTEA NOT NULL CHECK (LENGTH(session_hash)=64) REFERENCES refresh_sessions (session_hash)"
+          ",newcoin_index INT2 NOT NULL "
+          ",denom_pub BYTEA NOT NULL REFERENCES denominations (pub)"
+          ",PRIMARY KEY (session_hash, newcoin_index)"
+          ")");
+
+  /* Table with the commitments for a refresh operation; includes
+     the session_hash for which this is the link information, the
+     oldcoin index and the cut-and-choose index (from 0 to #TALER_CNC_KAPPA-1),
+     as well as the actual link data (the transfer public key and the encrypted
+     link secret).
+     NOTE: We might want to simplify this and not have the oldcoin_index
+     and instead store all link secrets, one after the other, in one big BYTEA.
+     (#3814) */
+  SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_commit_link "
+          "(session_hash BYTEA NOT NULL REFERENCES refresh_sessions (session_hash)"
+          ",transfer_pub BYTEA NOT NULL CHECK(LENGTH(transfer_pub)=32)"
+          ",link_secret_enc BYTEA NOT NULL"
+          ",oldcoin_index INT2 NOT NULL"
+          ",cnc_index INT2 NOT NULL"
+          ")");
+  /* Table with the commitments for the new coins that are to be created
+     during a melting session.  Includes the session, the cut-and-choose
+     index and the index of the new coin, and the envelope of the new
+     coin to be signed, as well as the encrypted information about the
+     private key and the blinding factor for the coin (for verification
+     in case this cnc_index is chosen to be revealed)
+
+     NOTE: We might want to simplify this and not have the
+     newcoin_index and instead store all coin_evs and
+     link_vector_encs, one after the other, in two big BYTEAs.
+     (#3815) */
+  SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_commit_coin "
+          "(session_hash BYTEA NOT NULL REFERENCES refresh_sessions (session_hash) "
+          ",cnc_index INT2 NOT NULL"
+          ",newcoin_index INT2 NOT NULL"
+          ",link_vector_enc BYTEA NOT NULL"
+          ",coin_ev BYTEA NOT NULL"
+          ")");
+  /* Table with the signatures over coins generated during a refresh
+     operation. Needed to answer /refresh/link queries later.  Stores
+     the coin signatures under the respective session hash and index. */
+  SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_out "
+          "(session_hash BYTEA NOT NULL CHECK(LENGTH(session_hash)=64) REFERENCES refresh_sessions (session_hash) "
+          ",newcoin_index INT2 NOT NULL"
+          ",ev_sig BYTEA NOT NULL"
+          ")");
+  /* This table contains the wire transfers the exchange is supposed to
+     execute to transmit funds to the merchants (and manage refunds). */
+  SQLEXEC("CREATE TABLE IF NOT EXISTS deposits "
+          "(serial_id BIGSERIAL PRIMARY KEY"
+          ",coin_pub BYTEA NOT NULL CHECK (LENGTH(coin_pub)=32)"
+          ",denom_pub BYTEA NOT NULL REFERENCES denominations (pub)"
+          ",denom_sig BYTEA NOT NULL"
+          ",transaction_id INT8 NOT NULL"
+          ",amount_with_fee_val INT8 NOT NULL"
+          ",amount_with_fee_frac INT4 NOT NULL"
+          ",amount_with_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
+          ",deposit_fee_val INT8 NOT NULL"
+          ",deposit_fee_frac INT4 NOT NULL"
+          ",deposit_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
+          ",timestamp INT8 NOT NULL"
+          ",refund_deadline INT8 NOT NULL"
+          ",wire_deadline INT8 NOT NULL"
+          ",merchant_pub BYTEA NOT NULL CHECK (LENGTH(merchant_pub)=32)"
+          ",h_contract BYTEA NOT NULL CHECK (LENGTH(h_contract)=64)"
+          ",h_wire BYTEA NOT NULL CHECK (LENGTH(h_wire)=64)"
+          ",coin_sig BYTEA NOT NULL CHECK (LENGTH(coin_sig)=64)"
+          ",wire TEXT NOT NULL"
+          ",tiny BOOLEAN NOT NULL DEFAULT false"
+          ",done BOOLEAN NOT NULL DEFAULT false"
+          ")");
+  /* Index for get_deposit statement on coin_pub, transaction_id and merchant_pub */
+  SQLEXEC_INDEX("CREATE INDEX deposits_coin_pub_index "
+                "ON deposits(coin_pub, transaction_id, merchant_pub)");
+  /* Table for the tracking API, mapping from wire transfer identifiers
+     to transactions and back */
+  SQLEXEC("CREATE TABLE IF NOT EXISTS aggregation_tracking "
+          "(h_contract BYTEA CHECK (LENGTH(h_contract)=64)"
+          ",h_wire BYTEA CHECK (LENGTH(h_wire)=64)"
+          ",coin_pub BYTEA NOT NULL CHECK (LENGTH(coin_pub)=32)"
+          ",merchant_pub BYTEA NOT NULL CHECK (LENGTH(merchant_pub)=32)"
+          ",transaction_id INT8 NOT NULL"
+          ",wtid_raw BYTEA NOT NULL CHECK (LENGTH(merchant_pub)=" TALER_WIRE_TRANSFER_IDENTIFIER_LEN_STR ")"
+          ",execution_time INT8 NOT NULL"
+          ",coin_amount_val INT8 NOT NULL"
+          ",coin_amount_frac INT4 NOT NULL"
+          ",coin_amount_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
+          ",coin_fee_val INT8 NOT NULL"
+          ",coin_fee_frac INT4 NOT NULL"
+          ",coin_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
+          ")");
+  /* Index for lookup_transactions statement on wtid */
+  SQLEXEC_INDEX("CREATE INDEX aggregation_tracking_wtid_index "
+                "ON aggregation_tracking(wtid_raw)");
+  /* Index for lookup_deposit_wtid statement */
+  SQLEXEC_INDEX("CREATE INDEX aggregation_tracking_deposit_index "
+                "ON aggregation_tracking(coin_pub,h_contract,h_wire,transaction_id,merchant_pub)");
+
+  /* This table contains the pre-commit data for
+     wire transfers the exchange is about to execute. */
+  SQLEXEC("CREATE TABLE IF NOT EXISTS prewire "
+          "(serial_id BIGSERIAL PRIMARY KEY"
+          ",type TEXT NOT NULL"
+          ",finished BOOLEAN NOT NULL DEFAULT false"
+          ",buf BYTEA NOT NULL"
+          ")");
+  /* Index for prepare_data_iterate statement */
+  SQLEXEC_INDEX("CREATE INDEX prepare_iteration_index "
+                "ON prewire(type,finished)");
+
+
+#undef SQLEXEC
+#undef SQLEXEC_INDEX
+
+  PQfinish (conn);
+  return GNUNET_OK;
+
+ SQLEXEC_fail:
+  PQfinish (conn);
+  return GNUNET_SYSERR;
+}
+
+
+/**
+ * Setup prepared statements.
+ *
+ * @param db_conn connection handle to initialize
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on failure
+ */
+static int
+postgres_prepare (PGconn *db_conn)
+{
+  PGresult *result;
+
+#define PREPARE(name, sql, ...)                                 \
+  do {                                                          \
+    result = PQprepare (db_conn, name, sql, __VA_ARGS__);       \
+    if (PGRES_COMMAND_OK != PQresultStatus (result))            \
+    {                                                           \
+      BREAK_DB_ERR (result);                                    \
+      PQclear (result); result = NULL;                          \
+      return GNUNET_SYSERR;                                     \
+    }                                                           \
+    PQclear (result); result = NULL;                            \
+  } while (0);
+
+  /* Used in #postgres_insert_denomination_info() */
+  PREPARE ("denomination_insert",
+           "INSERT INTO denominations "
+           "(pub"
+           ",master_pub"
+           ",master_sig"
+           ",valid_from"
+           ",expire_withdraw"
+           ",expire_spend"
+           ",expire_legal"
+           ",coin_val" /* value of this denom */
+           ",coin_frac" /* fractional value of this denom */
+           ",coin_curr" /* assuming same currency for fees */
+           ",fee_withdraw_val"
+           ",fee_withdraw_frac"
+           ",fee_withdraw_curr" /* must match coin_curr */
+           ",fee_deposit_val"
+           ",fee_deposit_frac"
+           ",fee_deposit_curr"  /* must match coin_curr */
+           ",fee_refresh_val"
+           ",fee_refresh_frac"
+           ",fee_refresh_curr" /* must match coin_curr */
+           ") VALUES "
+           "($1, $2, $3, $4, $5, $6, $7, $8, $9, $10,"
+           " $11, $12, $13, $14, $15, $16, $17, $18, $19);",
+           19, NULL);
+
+  /* Used in #postgres_get_denomination_info() */
+  PREPARE ("denomination_get",
+           "SELECT"
+           " master_pub"
+           ",master_sig"
+           ",valid_from"
+           ",expire_withdraw"
+           ",expire_spend"
+           ",expire_legal"
+           ",coin_val"  /* value of this denom */
+           ",coin_frac" /* fractional value of this denom */
+           ",coin_curr" /* assuming same currency for fees */
+           ",fee_withdraw_val"
+           ",fee_withdraw_frac"
+           ",fee_withdraw_curr" /* must match coin_curr */
+           ",fee_deposit_val"
+           ",fee_deposit_frac"
+           ",fee_deposit_curr"  /* must match coin_curr */
+           ",fee_refresh_val"
+           ",fee_refresh_frac"
+           ",fee_refresh_curr" /* must match coin_curr */
+           " FROM denominations"
+           " WHERE pub=$1;",
+           1, NULL);
+
+  /* Used in #postgres_reserve_get() */
+  PREPARE ("reserve_get",
+           "SELECT"
+           " current_balance_val"
+           ",current_balance_frac"
+           ",current_balance_curr"
+           ",expiration_date"
+           " FROM reserves"
+           " WHERE reserve_pub=$1"
+           " LIMIT 1;",
+           1, NULL);
+
+  /* Used in #postgres_reserves_in_insert() when the reserve is new */
+  PREPARE ("reserve_create",
+           "INSERT INTO reserves "
+           "(reserve_pub"
+           ",current_balance_val"
+           ",current_balance_frac"
+           ",current_balance_curr"
+           ",expiration_date"
+           ") VALUES "
+           "($1, $2, $3, $4, $5);",
+           5, NULL);
+
+  /* Used in #postgres_reserves_update() when the reserve is updated */
+  PREPARE ("reserve_update",
+           "UPDATE reserves"
+           " SET"
+           " expiration_date=$1 "
+           ",current_balance_val=$2 "
+           ",current_balance_frac=$3 "
+           "WHERE current_balance_curr=$4 AND reserve_pub=$5",
+           5, NULL);
+
+  /* Used in #postgres_reserves_in_insert() to store transaction details */
+  PREPARE ("reserves_in_add_transaction",
+           "INSERT INTO reserves_in "
+           "(reserve_pub"
+           ",balance_val"
+           ",balance_frac"
+           ",balance_curr"
+           ",details"
+           ",execution_date"
+           ") VALUES "
+           "($1, $2, $3, $4, $5, $6);",
+           6, NULL);
+
+  /* Used in #postgres_get_reserve_history() to obtain inbound transactions
+     for a reserve */
+  PREPARE ("reserves_in_get_transactions",
+           "SELECT"
+           " balance_val"
+           ",balance_frac"
+           ",balance_curr"
+           ",execution_date"
+           ",details"
+           " FROM reserves_in"
+           " WHERE reserve_pub=$1",
+           1, NULL);
+
+  /* Used in #postgres_insert_withdraw_info() to store
+     the signature of a blinded coin with the blinded coin's
+     details before returning it during /reserve/withdraw. We store
+     the coin's denomination information (public key, signature)
+     and the blinded message as well as the reserve that the coin
+     is being withdrawn from and the signature of the message
+     authorizing the withdrawal. */
+  PREPARE ("insert_withdraw_info",
+           "INSERT INTO reserves_out "
+           "(h_blind_ev"
+           ",denom_pub"
+           ",denom_sig"
+           ",reserve_pub"
+           ",reserve_sig"
+           ",execution_date"
+           ",amount_with_fee_val"
+           ",amount_with_fee_frac"
+           ",amount_with_fee_curr"
+           ",withdraw_fee_val"
+           ",withdraw_fee_frac"
+           ",withdraw_fee_curr"
+           ") VALUES "
+           "($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12);",
+           12, NULL);
+
+  /* Used in #postgres_get_withdraw_info() to
+     locate the response for a /reserve/withdraw request
+     using the hash of the blinded message.  Used to
+     make sure /reserve/withdraw requests are idempotent. */
+  PREPARE ("get_withdraw_info",
+           "SELECT"
+           " denom_pub"
+           ",denom_sig"
+           ",reserve_sig"
+           ",reserve_pub"
+           ",execution_date"
+           ",amount_with_fee_val"
+           ",amount_with_fee_frac"
+           ",amount_with_fee_curr"
+           ",withdraw_fee_val"
+           ",withdraw_fee_frac"
+           ",withdraw_fee_curr"
+           " FROM reserves_out"
+           " WHERE h_blind_ev=$1",
+           1, NULL);
+
+  /* Used during #postgres_get_reserve_history() to
+     obtain all of the /reserve/withdraw operations that
+     have been performed on a given reserve. (i.e. to
+     demonstrate double-spending) */
+  PREPARE ("get_reserves_out",
+           "SELECT"
+           " h_blind_ev"
+           ",denom_pub"
+           ",denom_sig"
+           ",reserve_sig"
+           ",execution_date"
+           ",amount_with_fee_val"
+           ",amount_with_fee_frac"
+           ",amount_with_fee_curr"
+           ",withdraw_fee_val"
+           ",withdraw_fee_frac"
+           ",withdraw_fee_curr"
+           " FROM reserves_out"
+           " WHERE reserve_pub=$1;",
+           1, NULL);
+
+  /* Used in #postgres_get_refresh_session() to fetch
+     high-level information about a refresh session */
+  PREPARE ("get_refresh_session",
+           "SELECT"
+           " num_oldcoins"
+           ",num_newcoins"
+           ",noreveal_index"
+           " FROM refresh_sessions "
+           " WHERE session_hash=$1 ",
+           1, NULL);
+
+  /* Used in #postgres_create_refresh_session() to store
+     high-level information about a refresh session */
+  PREPARE ("insert_refresh_session",
+           "INSERT INTO refresh_sessions "
+           "(session_hash "
+           ",num_oldcoins "
+           ",num_newcoins "
+           ",noreveal_index "
+           ") VALUES "
+           "($1, $2, $3, $4);",
+           4, NULL);
+
+  /* Used in #postgres_get_known_coin() to fetch
+     the denomination public key and signature for
+     a coin known to the exchange. */
+  PREPARE ("get_known_coin",
+           "SELECT"
+           " denom_pub"
+           ",denom_sig"
+           " FROM known_coins"
+           " WHERE coin_pub=$1",
+           1, NULL);
+
+  /* Used in #postgres_insert_known_coin() to store
+     the denomination public key and signature for
+     a coin known to the exchange. */
+  PREPARE ("insert_known_coin",
+           "INSERT INTO known_coins "
+           "(coin_pub"
+           ",denom_pub"
+           ",denom_sig"
+           ") VALUES "
+           "($1,$2,$3);",
+           3, NULL);
+
+  /* Store information about the desired denominations for a
+     refresh operation, used in #postgres_insert_refresh_order() */
+  PREPARE ("insert_refresh_order",
+           "INSERT INTO refresh_order "
+           "(newcoin_index "
+           ",session_hash "
+           ",denom_pub "
+           ") VALUES "
+           "($1, $2, $3);",
+           3, NULL);
+
+  /* Obtain information about the desired denominations for a
+     refresh operation, used in #postgres_get_refresh_order() */
+  PREPARE ("get_refresh_order",
+           "SELECT denom_pub"
+           " FROM refresh_order"
+           " WHERE session_hash=$1 AND newcoin_index=$2",
+           2, NULL);
+
+  /* Used in #postgres_insert_refresh_melt to store information
+     about melted coins */
+  PREPARE ("insert_refresh_melt",
+           "INSERT INTO refresh_melts "
+           "(coin_pub "
+           ",session_hash"
+           ",oldcoin_index "
+           ",coin_sig "
+           ",amount_with_fee_val "
+           ",amount_with_fee_frac "
+           ",amount_with_fee_curr "
+           ",melt_fee_val "
+           ",melt_fee_frac "
+           ",melt_fee_curr "
+           ") VALUES "
+           "($1, $2, $3, $4, $5, $6, $7, $8, $9, $10);",
+           10, NULL);
+
+  /* Used in #postgres_get_refresh_melt to obtain information
+     about melted coins */
+  PREPARE ("get_refresh_melt",
+           "SELECT"
+           " coin_pub"
+           ",coin_sig"
+           ",amount_with_fee_val"
+           ",amount_with_fee_frac"
+           ",amount_with_fee_curr"
+           ",melt_fee_val "
+           ",melt_fee_frac "
+           ",melt_fee_curr "
+           " FROM refresh_melts"
+           " WHERE session_hash=$1 AND oldcoin_index=$2",
+           2, NULL);
+
+  /* Query the 'refresh_melts' by coin public key */
+  PREPARE ("get_refresh_melt_by_coin",
+           "SELECT"
+           " session_hash"
+           /* ",oldcoin_index" // not needed */
+           ",coin_sig"
+           ",amount_with_fee_val"
+           ",amount_with_fee_frac"
+           ",amount_with_fee_curr"
+           ",melt_fee_val "
+           ",melt_fee_frac "
+           ",melt_fee_curr "
+           " FROM refresh_melts"
+           " WHERE coin_pub=$1",
+           1, NULL);
+
+  /* Used in #postgres_insert_refresh_commit_links() to
+     store commitments */
+  PREPARE ("insert_refresh_commit_link",
+           "INSERT INTO refresh_commit_link "
+           "(session_hash"
+           ",transfer_pub"
+           ",cnc_index"
+           ",oldcoin_index"
+           ",link_secret_enc"
+           ") VALUES "
+           "($1, $2, $3, $4, $5);",
+           5, NULL);
+
+  /* Used in #postgres_get_refresh_commit_links() to
+     retrieve original commitments during /refresh/reveal */
+  PREPARE ("get_refresh_commit_link",
+           "SELECT"
+           " transfer_pub"
+           ",link_secret_enc"
+           " FROM refresh_commit_link"
+           " WHERE session_hash=$1 AND cnc_index=$2 AND oldcoin_index=$3",
+           3, NULL);
+
+  /* Used in #postgres_insert_refresh_commit_coins() to
+     store coin commitments. */
+  PREPARE ("insert_refresh_commit_coin",
+           "INSERT INTO refresh_commit_coin "
+           "(session_hash"
+           ",cnc_index"
+           ",newcoin_index"
+           ",link_vector_enc"
+           ",coin_ev"
+           ") VALUES "
+           "($1, $2, $3, $4, $5);",
+           5, NULL);
+
+  /* Used in #postgres_get_refresh_commit_coins() to
+     retrieve the original coin envelopes, to either be
+     verified or signed. */
+  PREPARE ("get_refresh_commit_coin",
+           "SELECT"
+           " link_vector_enc"
+           ",coin_ev"
+           " FROM refresh_commit_coin"
+           " WHERE session_hash=$1 AND cnc_index=$2 AND newcoin_index=$3",
+           3, NULL);
+
+  /* Store information about a /deposit the exchange is to execute.
+     Used in #postgres_insert_deposit(). */
+  PREPARE ("insert_deposit",
+           "INSERT INTO deposits "
+           "(coin_pub"
+           ",denom_pub"
+           ",denom_sig"
+           ",transaction_id"
+           ",amount_with_fee_val"
+           ",amount_with_fee_frac"
+           ",amount_with_fee_curr"
+           ",deposit_fee_val"
+           ",deposit_fee_frac"
+           ",deposit_fee_curr"
+           ",timestamp"
+           ",refund_deadline"
+           ",wire_deadline"
+           ",merchant_pub"
+           ",h_contract"
+           ",h_wire"
+           ",coin_sig"
+           ",wire"
+           ") VALUES "
+           "($1, $2, $3, $4, $5, $6, $7, $8, $9, $10,"
+           " $11, $12, $13, $14, $15, $16, $17, $18);",
+           18, NULL);
+
+  /* Fetch an existing deposit request, used to ensure idempotency
+     during /deposit processing. Used in #postgres_have_deposit(). */
+  PREPARE ("get_deposit",
+           "SELECT"
+           " amount_with_fee_val"
+           ",amount_with_fee_frac"
+           ",amount_with_fee_curr"
+           ",timestamp"
+           ",refund_deadline"
+           ",wire_deadline"
+           ",h_contract"
+           ",h_wire"
+           " FROM deposits"
+           " WHERE ("
+           "  (coin_pub=$1) AND"
+           "  (transaction_id=$2) AND"
+           "  (merchant_pub=$3)"
+           " )",
+           3, NULL);
+
+  /* Fetch an existing deposit request.
+     Used in #postgres_wire_lookup_deposit_wtid(). */
+  PREPARE ("get_deposit_for_wtid",
+           "SELECT"
+           " amount_with_fee_val"
+           ",amount_with_fee_frac"
+           ",amount_with_fee_curr"
+           ",deposit_fee_val"
+           ",deposit_fee_frac"
+           ",deposit_fee_curr"
+           ",wire_deadline"
+           " FROM deposits"
+           " WHERE ("
+           "  (coin_pub=$1) AND"
+           "  (transaction_id=$2) AND"
+           "  (merchant_pub=$3) AND"
+           "  (h_contract=$4) AND"
+           "  (h_wire=$5)"
+           " )",
+           5, NULL);
+
+  /* Used in #postgres_get_ready_deposit() */
+  PREPARE ("deposits_get_ready",
+           "SELECT"
+           " serial_id"
+           ",amount_with_fee_val"
+           ",amount_with_fee_frac"
+           ",amount_with_fee_curr"
+           ",deposit_fee_val"
+           ",deposit_fee_frac"
+           ",deposit_fee_curr"
+           ",wire_deadline"
+           ",transaction_id"
+           ",h_contract"
+           ",wire"
+           ",merchant_pub"
+           ",coin_pub"
+           " FROM deposits"
+           " WHERE"
+           " tiny=false AND"
+           " done=false"
+           " ORDER BY wire_deadline ASC"
+           " LIMIT 1;",
+           0, NULL);
+
+  /* Used in #postgres_iterate_matching_deposits() */
+  PREPARE ("deposits_iterate_matching",
+           "SELECT"
+           " serial_id"
+           ",amount_with_fee_val"
+           ",amount_with_fee_frac"
+           ",amount_with_fee_curr"
+           ",deposit_fee_val"
+           ",deposit_fee_frac"
+           ",deposit_fee_curr"
+           ",wire_deadline"
+           ",transaction_id"
+           ",h_contract"
+           ",coin_pub"
+           " FROM deposits"
+           " WHERE"
+           " merchant_pub=$1 AND"
+           " h_wire=$2 AND"
+           " done=false"
+           " ORDER BY wire_deadline ASC"
+           " LIMIT $3",
+           3, NULL);
+
+  /* Used in #postgres_mark_deposit_tiny() */
+  PREPARE ("mark_deposit_tiny",
+           "UPDATE deposits"
+           " SET tiny=true"
+           " WHERE serial_id=$1",
+           1, NULL);
+
+  /* Used in #postgres_mark_deposit_done() */
+  PREPARE ("mark_deposit_done",
+           "UPDATE deposits"
+           " SET done=true"
+           " WHERE serial_id=$1",
+           1, NULL);
+
+  /* Used in #postgres_get_coin_transactions() to obtain information
+     about how a coin has been spend with /deposit requests. */
+  PREPARE ("get_deposit_with_coin_pub",
+           "SELECT"
+           " denom_pub"
+           ",denom_sig"
+           ",transaction_id"
+           ",amount_with_fee_val"
+           ",amount_with_fee_frac"
+           ",amount_with_fee_curr"
+           ",deposit_fee_val"
+           ",deposit_fee_frac"
+           ",deposit_fee_curr"
+           ",timestamp"
+           ",refund_deadline"
+           ",merchant_pub"
+           ",h_contract"
+           ",h_wire"
+           ",wire"
+           ",coin_sig"
+           " FROM deposits"
+           " WHERE coin_pub=$1",
+           1, NULL);
+
+  /* Used in #postgres_insert_refresh_out() to store the
+     generated signature(s) for future requests, i.e. /refresh/link */
+  PREPARE ("insert_refresh_out",
+           "INSERT INTO refresh_out "
+           "(session_hash"
+           ",newcoin_index"
+           ",ev_sig"
+           ") VALUES "
+           "($1, $2, $3)",
+           3, NULL);
+
+  /* Used in #postgres_get_link_data_list().  We use the session_hash
+     to obtain the "noreveal_index" for that session, and then select
+     the encrypted link vectors (link_vector_enc) and the
+     corresponding signatures (ev_sig) and the denomination keys from
+     the respective tables (namely refresh_melts and refresh_order)
+     using the session_hash as the primary filter (on join) and the
+     'noreveal_index' to constrain the selection on the commitment.
+     We also want to get the triplet for each of the newcoins, so we
+     have another constraint to ensure we get each triplet with
+     matching "newcoin_index" values.  NOTE: This may return many
+     results, both for different sessions and for the different coins
+     being exchangeed in the refresh ops.  NOTE: There may be more
+     efficient ways to express the same query.  */
+  PREPARE ("get_link",
+           "SELECT link_vector_enc,ev_sig,ro.denom_pub"
+           " FROM refresh_melts rm "
+           "     JOIN refresh_order ro USING (session_hash)"
+           "     JOIN refresh_commit_coin rcc USING (session_hash)"
+           "     JOIN refresh_sessions rs USING (session_hash)"
+           "     JOIN refresh_out rc USING (session_hash)"
+           " WHERE ro.session_hash=$1"
+           "  AND ro.newcoin_index=rcc.newcoin_index"
+           "  AND ro.newcoin_index=rc.newcoin_index"
+           "  AND rcc.cnc_index=rs.noreveal_index",
+           1, NULL);
+
+  /* Used in #postgres_get_transfer().  Given the public key of a
+     melted coin, we obtain the corresponding encrypted link secret
+     and the transfer public key.  This is done by first finding
+     the session_hash(es) of all sessions the coin was melted into,
+     and then constraining the result to the selected "noreveal_index"
+     and the transfer public key to the corresponding index of the
+     old coin.
+     NOTE: This may (in theory) return multiple results, one per session
+     that the old coin was melted into. */
+  PREPARE ("get_transfer",
+           "SELECT transfer_pub,link_secret_enc,session_hash"
+           " FROM refresh_melts rm"
+           "     JOIN refresh_commit_link rcl USING (session_hash)"
+           "     JOIN refresh_sessions rs USING (session_hash)"
+           " WHERE rm.coin_pub=$1"
+           "  AND rm.oldcoin_index = rcl.oldcoin_index"
+           "  AND rcl.cnc_index=rs.noreveal_index",
+           1, NULL);
+
+  /* Used in #postgres_lookup_wire_transfer */
+  PREPARE ("lookup_transactions",
+           "SELECT"
+           " h_contract"
+           ",h_wire"
+           ",coin_pub"
+           ",merchant_pub"
+           ",transaction_id"
+           ",execution_time"
+           ",coin_amount_val"
+           ",coin_amount_frac"
+           ",coin_amount_curr"
+           ",coin_fee_val"
+           ",coin_fee_frac"
+           ",coin_fee_curr"
+           " FROM aggregation_tracking"
+           " WHERE wtid_raw=$1",
+           1, NULL);
+
+  /* Used in #postgres_wire_lookup_deposit_wtid */
+  PREPARE ("lookup_deposit_wtid",
+           "SELECT"
+           " wtid_raw"
+           ",execution_time"
+           ",coin_amount_val"
+           ",coin_amount_frac"
+           ",coin_amount_curr"
+           ",coin_fee_val"
+           ",coin_fee_frac"
+           ",coin_fee_curr"
+           " FROM aggregation_tracking"
+           " WHERE"
+           " coin_pub=$1 AND"
+           " h_contract=$2 AND"
+           " h_wire=$3 AND"
+           " transaction_id=$4 AND"
+           " merchant_pub=$5",
+           5, NULL);
+
+  /* Used in #postgres_insert_aggregation_tracking */
+  PREPARE ("insert_aggregation_tracking",
+           "INSERT INTO aggregation_tracking "
+           "(h_contract"
+           ",h_wire"
+           ",coin_pub"
+           ",merchant_pub"
+           ",transaction_id"
+           ",wtid_raw"
+           ",execution_time"
+           ",coin_amount_val"
+           ",coin_amount_frac"
+           ",coin_amount_curr"
+           ",coin_fee_val"
+           ",coin_fee_frac"
+           ",coin_fee_curr"
+           ") VALUES "
+           "($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13)",
+           13, NULL);
+
+
+  /* Used in #postgres_wire_prepare_data_insert() to store
+     wire transfer information before actually committing it with the bank */
+  PREPARE ("wire_prepare_data_insert",
+           "INSERT INTO prewire "
+           "(type"
+           ",buf"
+           ") VALUES "
+           "($1, $2)",
+           2, NULL);
+
+  /* Used in #postgres_wire_prepare_data_mark_finished() */
+  PREPARE ("wire_prepare_data_mark_done",
+           "UPDATE prewire"
+           " SET finished=true"
+           " WHERE serial_id=$1",
+           1, NULL);
+
+  /* Used in #postgres_wire_prepare_data_get() */
+  PREPARE ("wire_prepare_data_get",
+           "SELECT"
+           " serial_id"
+           ",buf"
+           " FROM prewire"
+           " WHERE"
+           " type=$1 AND"
+           " finished=false"
+           " ORDER BY serial_id ASC"
+           " LIMIT 1",
+           1, NULL);
+
+  return GNUNET_OK;
+#undef PREPARE
+}
+
+
+/**
+ * Close thread-local database connection when a thread is destroyed.
+ *
+ * @param cls closure we get from pthreads (the db handle)
+ */
+static void
+db_conn_destroy (void *cls)
+{
+  struct TALER_EXCHANGEDB_Session *session = cls;
+  PGconn *db_conn = session->conn;
+
+  if (NULL != db_conn)
+    PQfinish (db_conn);
+  GNUNET_free (session);
+}
+
+
+/**
+ * Get the thread-local database-handle.
+ * Connect to the db if the connection does not exist yet.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param temporary #GNUNET_YES to use a temporary schema; #GNUNET_NO to use the
+ *        database default one
+ * @return the database connection, or NULL on error
+ */
+static struct TALER_EXCHANGEDB_Session *
+postgres_get_session (void *cls,
+                      int temporary)
+{
+  struct PostgresClosure *pc = cls;
+  PGconn *db_conn;
+  struct TALER_EXCHANGEDB_Session *session;
+
+  if (NULL != (session = pthread_getspecific (pc->db_conn_threadlocal)))
+    return session;
+  db_conn = PQconnectdb (pc->connection_cfg_str);
+  if (CONNECTION_OK !=
+      PQstatus (db_conn))
+  {
+    TALER_LOG_ERROR ("Database connection failed: %s\n",
+                     PQerrorMessage (db_conn));
+    GNUNET_break (0);
+    return NULL;
+  }
+  PQsetNoticeReceiver (db_conn,
+                       &pq_notice_receiver_cb,
+                       NULL);
+  PQsetNoticeProcessor (db_conn,
+                        &pq_notice_processor_cb,
+                        NULL);
+  if ( (GNUNET_YES == temporary) &&
+       (GNUNET_SYSERR == set_temporary_schema(db_conn)) )
+  {
+    GNUNET_break (0);
+    return NULL;
+  }
+  if (GNUNET_OK !=
+      postgres_prepare (db_conn))
+  {
+    GNUNET_break (0);
+    return NULL;
+  }
+  session = GNUNET_new (struct TALER_EXCHANGEDB_Session);
+  session->conn = db_conn;
+  if (0 != pthread_setspecific (pc->db_conn_threadlocal,
+                                session))
+  {
+    GNUNET_break (0);
+    PQfinish (db_conn);
+    GNUNET_free (session);
+    return NULL;
+  }
+  return session;
+}
+
+
+/**
+ * Start a transaction.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session the database connection
+ * @return #GNUNET_OK on success
+ */
+static int
+postgres_start (void *cls,
+                struct TALER_EXCHANGEDB_Session *session)
+{
+  PGresult *result;
+
+  result = PQexec (session->conn,
+                   "BEGIN");
+  if (PGRES_COMMAND_OK !=
+      PQresultStatus (result))
+  {
+    TALER_LOG_ERROR ("Failed to start transaction: %s\n",
+               PQresultErrorMessage (result));
+    GNUNET_break (0);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+
+  PQclear (result);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Roll back the current transaction of a database connection.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session the database connection
+ * @return #GNUNET_OK on success
+ */
+static void
+postgres_rollback (void *cls,
+                   struct TALER_EXCHANGEDB_Session *session)
+{
+  PGresult *result;
+
+  result = PQexec (session->conn,
+                   "ROLLBACK");
+  GNUNET_break (PGRES_COMMAND_OK ==
+                PQresultStatus (result));
+  PQclear (result);
+}
+
+
+/**
+ * Commit the current transaction of a database connection.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session the database connection
+ * @return #GNUNET_OK on success
+ */
+static int
+postgres_commit (void *cls,
+                 struct TALER_EXCHANGEDB_Session *session)
+{
+  PGresult *result;
+
+  result = PQexec (session->conn,
+                   "COMMIT");
+  if (PGRES_COMMAND_OK !=
+      PQresultStatus (result))
+  {
+    const char *sqlstate;
+
+    sqlstate = PQresultErrorField (result,
+                                   PG_DIAG_SQLSTATE);
+    if (NULL == sqlstate)
+    {
+      /* very unexpected... */
+      GNUNET_break (0);
+      PQclear (result);
+      return GNUNET_SYSERR;
+    }
+    /* 40P01: deadlock, 40001: serialization failure */
+    if ( (0 == strcmp (sqlstate,
+                       "40P01")) ||
+         (0 == strcmp (sqlstate,
+                       "40001")) )
+    {
+      /* These two can be retried and have a fair chance of working
+         the next time */
+      PQclear (result);
+      return GNUNET_NO;
+    }
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
+                "Database commit failure: %s\n",
+                sqlstate);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  PQclear (result);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Insert a denomination key's public information into the database for
+ * reference by auditors and other consistency checks.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param session connection to use
+ * @param denom_pub the public key used for signing coins of this denomination
+ * @param issue issuing information with value, fees and other info about the coin
+ * @return #GNUNET_OK on success; #GNUNET_SYSERR on failure
+ */
+static int
+postgres_insert_denomination_info (void *cls,
+                                   struct TALER_EXCHANGEDB_Session *session,
+                                   const struct TALER_DenominationPublicKey *denom_pub,
+                                   const struct TALER_EXCHANGEDB_DenominationKeyInformationP *issue)
+{
+  PGresult *result;
+  int ret;
+
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_rsa_public_key (denom_pub->rsa_public_key),
+    GNUNET_PQ_query_param_auto_from_type (&issue->properties.master),
+    GNUNET_PQ_query_param_auto_from_type (&issue->signature),
+    GNUNET_PQ_query_param_absolute_time_nbo (&issue->properties.start),
+    GNUNET_PQ_query_param_absolute_time_nbo (&issue->properties.expire_withdraw),
+    GNUNET_PQ_query_param_absolute_time_nbo (&issue->properties.expire_spend),
+    GNUNET_PQ_query_param_absolute_time_nbo (&issue->properties.expire_legal),
+    TALER_PQ_query_param_amount_nbo (&issue->properties.value),
+    TALER_PQ_query_param_amount_nbo (&issue->properties.fee_withdraw),
+    TALER_PQ_query_param_amount_nbo (&issue->properties.fee_deposit),
+    TALER_PQ_query_param_amount_nbo (&issue->properties.fee_refresh),
+    GNUNET_PQ_query_param_end
+  };
+  /* check fees match coin currency */
+  GNUNET_assert (GNUNET_YES ==
+                 TALER_amount_cmp_currency_nbo (&issue->properties.value,
+                                                &issue->properties.fee_withdraw));
+  GNUNET_assert (GNUNET_YES ==
+                 TALER_amount_cmp_currency_nbo (&issue->properties.value,
+                                                &issue->properties.fee_deposit));
+  GNUNET_assert (GNUNET_YES ==
+                 TALER_amount_cmp_currency_nbo (&issue->properties.value,
+                                                &issue->properties.fee_refresh));
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "denomination_insert",
+                                   params);
+  if (PGRES_COMMAND_OK != PQresultStatus (result))
+  {
+    ret = GNUNET_SYSERR;
+    BREAK_DB_ERR (result);
+  }
+  else
+  {
+    ret = GNUNET_OK;
+  }
+  PQclear (result);
+  return ret;
+}
+
+
+/**
+ * Fetch information about a denomination key.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param session connection to use
+ * @param denom_pub the public key used for signing coins of this denomination
+ * @param[out] issue set to issue information with value, fees and other info about the coin, can be NULL
+ * @return #GNUNET_OK on success; #GNUNET_NO if no record was found, #GNUNET_SYSERR on failure
+ */
+static int
+postgres_get_denomination_info (void *cls,
+                                struct TALER_EXCHANGEDB_Session *session,
+                                const struct TALER_DenominationPublicKey *denom_pub,
+                                struct TALER_EXCHANGEDB_DenominationKeyInformationP *issue)
+{
+  PGresult *result;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_rsa_public_key (denom_pub->rsa_public_key),
+    GNUNET_PQ_query_param_end
+  };
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "denomination_get",
+                                   params);
+  if (PGRES_TUPLES_OK != PQresultStatus (result))
+  {
+    QUERY_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  if (0 == PQntuples (result))
+  {
+    PQclear (result);
+    return GNUNET_NO;
+  }
+  if (1 != PQntuples (result))
+  {
+    GNUNET_break (0);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  if (NULL == issue)
+  {
+    PQclear (result);
+    return GNUNET_OK;
+  }
+  {
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_auto_from_type ("master_pub",
+                                           &issue->properties.master),
+      GNUNET_PQ_result_spec_auto_from_type ("master_sig",
+                                           &issue->signature),
+      GNUNET_PQ_result_spec_absolute_time_nbo ("valid_from",
+                                              &issue->properties.start),
+      GNUNET_PQ_result_spec_absolute_time_nbo ("expire_withdraw",
+                                              &issue->properties.expire_withdraw),
+      GNUNET_PQ_result_spec_absolute_time_nbo ("expire_spend",
+                                              &issue->properties.expire_spend),
+      GNUNET_PQ_result_spec_absolute_time_nbo ("expire_legal",
+                                              &issue->properties.expire_legal),
+      TALER_PQ_result_spec_amount_nbo ("coin",
+                                       &issue->properties.value),
+      TALER_PQ_result_spec_amount_nbo ("fee_withdraw",
+                                       &issue->properties.fee_withdraw),
+      TALER_PQ_result_spec_amount_nbo ("fee_deposit",
+                                       &issue->properties.fee_deposit),
+      TALER_PQ_result_spec_amount_nbo ("fee_refresh",
+                                       &issue->properties.fee_refresh),
+      GNUNET_PQ_result_spec_end
+    };
+
+    EXITIF (GNUNET_OK !=
+            GNUNET_PQ_extract_result (result,
+                                     rs,
+                                     0));
+  }
+  PQclear (result);
+  return GNUNET_OK;
+
+ EXITIF_exit:
+  PQclear (result);
+  return GNUNET_SYSERR;
+}
+
+
+/**
+ * Get the summary of a reserve.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session the database connection handle
+ * @param[in,out] reserve the reserve data.  The public key of the reserve should be
+ *          set in this structure; it is used to query the database.  The balance
+ *          and expiration are then filled accordingly.
+ * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
+ */
+static int
+postgres_reserve_get (void *cls,
+                      struct TALER_EXCHANGEDB_Session *session,
+                      struct TALER_EXCHANGEDB_Reserve *reserve)
+{
+  PGresult *result;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type(&reserve->pub),
+    GNUNET_PQ_query_param_end
+  };
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "reserve_get",
+                                   params);
+  if (PGRES_TUPLES_OK != PQresultStatus (result))
+  {
+    QUERY_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  if (0 == PQntuples (result))
+  {
+    PQclear (result);
+    return GNUNET_NO;
+  }
+  {
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      TALER_PQ_result_spec_amount("current_balance", &reserve->balance),
+      GNUNET_PQ_result_spec_absolute_time("expiration_date", &reserve->expiry),
+      GNUNET_PQ_result_spec_end
+    };
+
+    EXITIF (GNUNET_OK !=
+            GNUNET_PQ_extract_result (result,
+                                     rs,
+                                     0));
+  }
+  PQclear (result);
+  return GNUNET_OK;
+
+ EXITIF_exit:
+  PQclear (result);
+  return GNUNET_SYSERR;
+}
+
+
+/**
+ * Updates a reserve with the data from the given reserve structure.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session the database connection
+ * @param reserve the reserve structure whose data will be used to update the
+ *          corresponding record in the database.
+ * @return #GNUNET_OK upon successful update; #GNUNET_SYSERR upon any error
+ */
+static int
+reserves_update (void *cls,
+                 struct TALER_EXCHANGEDB_Session *session,
+                 const struct TALER_EXCHANGEDB_Reserve *reserve)
+{
+  PGresult *result;
+  int ret;
+
+  if (NULL == reserve)
+    return GNUNET_SYSERR;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_absolute_time (&reserve->expiry),
+    TALER_PQ_query_param_amount (&reserve->balance),
+    GNUNET_PQ_query_param_auto_from_type (&reserve->pub),
+    GNUNET_PQ_query_param_end
+  };
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "reserve_update",
+                                   params);
+  if (PGRES_COMMAND_OK != PQresultStatus(result))
+  {
+    QUERY_ERR (result);
+    ret = GNUNET_SYSERR;
+  }
+  else
+  {
+    ret = GNUNET_OK;
+  }
+  PQclear (result);
+  return ret;
+}
+
+
+/**
+ * Insert an incoming transaction into reserves.  New reserves are also created
+ * through this function.  Note that this API call starts (and stops) its
+ * own transaction scope (so the application must not do so).
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session the database connection handle
+ * @param reserve_pub public key of the reserve
+ * @param balance the amount that has to be added to the reserve
+ * @param execution_time when was the amount added
+ * @param details bank transaction details justifying the increment,
+ *        must be unique for each incoming transaction
+ * @return #GNUNET_OK upon success; #GNUNET_NO if the given
+ *         @a details are already known for this @a reserve_pub,
+ *         #GNUNET_SYSERR upon failures (DB error, incompatible currency)
+ */
+static int
+postgres_reserves_in_insert (void *cls,
+                             struct TALER_EXCHANGEDB_Session *session,
+                             const struct TALER_ReservePublicKeyP *reserve_pub,
+                             const struct TALER_Amount *balance,
+                             struct GNUNET_TIME_Absolute execution_time,
+                             const json_t *details)
+{
+  PGresult *result;
+  int reserve_exists;
+  struct TALER_EXCHANGEDB_Reserve reserve;
+  struct GNUNET_TIME_Absolute expiry;
+
+  if (GNUNET_OK != postgres_start (cls,
+                                   session))
+  {
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+  reserve.pub = *reserve_pub;
+  reserve_exists = postgres_reserve_get (cls,
+                                         session,
+                                         &reserve);
+  if (GNUNET_SYSERR == reserve_exists)
+  {
+    GNUNET_break (0);
+    goto rollback;
+  }
+  expiry = GNUNET_TIME_absolute_add (execution_time,
+                                     TALER_IDLE_RESERVE_EXPIRATION_TIME);
+  if (GNUNET_NO == reserve_exists)
+  {
+    /* New reserve, create balance for the first time; we do this
+       before adding the actual transaction to "reserves_in", as
+       for a new reserve it can't be a duplicate 'add' operation,
+       and as the 'add' operation may need the reserve entry
+       as a foreign key. */
+    struct GNUNET_PQ_QueryParam params[] = {
+      GNUNET_PQ_query_param_auto_from_type (reserve_pub),
+      TALER_PQ_query_param_amount (balance),
+      GNUNET_PQ_query_param_absolute_time (&expiry),
+      GNUNET_PQ_query_param_end
+    };
+
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "Reserve does not exist; creating a new one\n");
+    result = GNUNET_PQ_exec_prepared (session->conn,
+                                     "reserve_create",
+                                     params);
+    if (PGRES_COMMAND_OK != PQresultStatus(result))
+    {
+      QUERY_ERR (result);
+      PQclear (result);
+      goto rollback;
+    }
+    PQclear (result);
+  }
+  /* Create new incoming transaction, SQL "primary key" logic
+     is used to guard against duplicates.  If a duplicate is
+     detected, we rollback (which really shouldn't undo
+     anything) and return #GNUNET_NO to indicate that this failure
+     is kind-of harmless (already executed). */
+  {
+    struct GNUNET_PQ_QueryParam params[] = {
+      GNUNET_PQ_query_param_auto_from_type (&reserve.pub),
+      TALER_PQ_query_param_amount (balance),
+      TALER_PQ_query_param_json (details),
+      GNUNET_PQ_query_param_absolute_time (&execution_time),
+      GNUNET_PQ_query_param_end
+    };
+
+    result = GNUNET_PQ_exec_prepared (session->conn,
+                                     "reserves_in_add_transaction",
+                                     params);
+  }
+  if (PGRES_COMMAND_OK != PQresultStatus(result))
+  {
+    const char *efield;
+
+    efield = PQresultErrorField (result,
+				 PG_DIAG_SQLSTATE);
+    if ( (PGRES_FATAL_ERROR == PQresultStatus(result)) &&
+	 (NULL != strstr ("23505", /* unique violation */
+			  efield)) )
+    {
+      /* This means we had the same reserve/justification/details
+	 before */
+      PQclear (result);
+      postgres_rollback (cls,
+			 session);
+      return GNUNET_NO;
+    }
+    QUERY_ERR (result);
+    PQclear (result);
+    goto rollback;
+  }
+  PQclear (result);
+
+  if (GNUNET_YES == reserve_exists)
+  {
+    /* If the reserve already existed, we need to still update the
+       balance; we do this after checking for duplication, as
+       otherwise we might have to actually pay the cost to roll this
+       back for duplicate transactions; like this, we should virtually
+       never actually have to rollback anything. */
+    struct TALER_EXCHANGEDB_Reserve updated_reserve;
+
+    updated_reserve.pub = reserve.pub;
+    if (GNUNET_OK !=
+        TALER_amount_add (&updated_reserve.balance,
+                          &reserve.balance,
+                          balance))
+    {
+      /* currency overflow or incompatible currency */
+      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
+                  "Attempt to deposit incompatible amount into reserve\n");
+      goto rollback;
+    }
+    updated_reserve.expiry = GNUNET_TIME_absolute_max (expiry,
+                                                       reserve.expiry);
+    if (GNUNET_OK != reserves_update (cls,
+                                      session,
+                                      &updated_reserve))
+      goto rollback;
+  }
+  if (GNUNET_OK != postgres_commit (cls,
+                                    session))
+    return GNUNET_SYSERR;
+  return GNUNET_OK;
+
+ rollback:
+  postgres_rollback (cls,
+                     session);
+  return GNUNET_SYSERR;
+}
+
+
+/**
+ * Locate the response for a /reserve/withdraw request under the
+ * key of the hash of the blinded message.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database connection to use
+ * @param h_blind hash of the blinded coin to be signed (will match
+ *                `h_coin_envelope` in the @a collectable to be returned)
+ * @param collectable corresponding collectable coin (blind signature)
+ *                    if a coin is found
+ * @return #GNUNET_SYSERR on internal error
+ *         #GNUNET_NO if the collectable was not found
+ *         #GNUNET_YES on success
+ */
+static int
+postgres_get_withdraw_info (void *cls,
+                            struct TALER_EXCHANGEDB_Session *session,
+                            const struct GNUNET_HashCode *h_blind,
+                            struct TALER_EXCHANGEDB_CollectableBlindcoin *collectable)
+{
+  PGresult *result;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (h_blind),
+    GNUNET_PQ_query_param_end
+  };
+  int ret;
+
+  ret = GNUNET_SYSERR;
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "get_withdraw_info",
+                                   params);
+
+  if (PGRES_TUPLES_OK != PQresultStatus (result))
+  {
+    QUERY_ERR (result);
+    goto cleanup;
+  }
+  if (0 == PQntuples (result))
+  {
+    ret = GNUNET_NO;
+    goto cleanup;
+  }
+  {
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_rsa_public_key ("denom_pub",
+                                           &collectable->denom_pub.rsa_public_key),
+      GNUNET_PQ_result_spec_rsa_signature ("denom_sig",
+                                          &collectable->sig.rsa_signature),
+      GNUNET_PQ_result_spec_auto_from_type ("reserve_sig",
+                                           &collectable->reserve_sig),
+      GNUNET_PQ_result_spec_auto_from_type ("reserve_pub",
+                                           &collectable->reserve_pub),
+      TALER_PQ_result_spec_amount ("amount_with_fee",
+                                   &collectable->amount_with_fee),
+      TALER_PQ_result_spec_amount ("withdraw_fee",
+                                   &collectable->withdraw_fee),
+      GNUNET_PQ_result_spec_end
+    };
+
+    if (GNUNET_OK !=
+        GNUNET_PQ_extract_result (result, rs, 0))
+    {
+      GNUNET_break (0);
+      goto cleanup;
+    }
+  }
+  collectable->h_coin_envelope = *h_blind;
+  ret = GNUNET_YES;
+
+ cleanup:
+  PQclear (result);
+  return ret;
+}
+
+
+/**
+ * Store collectable bit coin under the corresponding
+ * hash of the blinded message.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database connection to use
+ * @param collectable corresponding collectable coin (blind signature)
+ *                    if a coin is found
+ * @return #GNUNET_SYSERR on internal error
+ *         #GNUNET_NO if the collectable was not found
+ *         #GNUNET_YES on success
+ */
+static int
+postgres_insert_withdraw_info (void *cls,
+                               struct TALER_EXCHANGEDB_Session *session,
+                               const struct TALER_EXCHANGEDB_CollectableBlindcoin *collectable)
+{
+  PGresult *result;
+  struct TALER_EXCHANGEDB_Reserve reserve;
+  int ret = GNUNET_SYSERR;
+  struct GNUNET_TIME_Absolute now;
+  struct GNUNET_TIME_Absolute expiry;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (&collectable->h_coin_envelope),
+    GNUNET_PQ_query_param_rsa_public_key (collectable->denom_pub.rsa_public_key),
+    GNUNET_PQ_query_param_rsa_signature (collectable->sig.rsa_signature),
+    GNUNET_PQ_query_param_auto_from_type (&collectable->reserve_pub),
+    GNUNET_PQ_query_param_auto_from_type (&collectable->reserve_sig),
+    GNUNET_PQ_query_param_absolute_time (&now),
+    TALER_PQ_query_param_amount (&collectable->amount_with_fee),
+    TALER_PQ_query_param_amount (&collectable->withdraw_fee),
+    GNUNET_PQ_query_param_end
+  };
+
+  now = GNUNET_TIME_absolute_get ();
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "insert_withdraw_info",
+                                   params);
+  if (PGRES_COMMAND_OK != PQresultStatus (result))
+  {
+    QUERY_ERR (result);
+    goto cleanup;
+  }
+  reserve.pub = collectable->reserve_pub;
+  if (GNUNET_OK != postgres_reserve_get (cls,
+                                         session,
+                                         &reserve))
+  {
+    /* Should have been checked before we got here... */
+    GNUNET_break (0);
+    goto cleanup;
+  }
+  if (GNUNET_SYSERR ==
+      TALER_amount_subtract (&reserve.balance,
+                             &reserve.balance,
+                             &collectable->amount_with_fee))
+  {
+    /* Should have been checked before we got here... */
+    GNUNET_break (0);
+    goto cleanup;
+  }
+  expiry = GNUNET_TIME_absolute_add (now,
+                                     TALER_IDLE_RESERVE_EXPIRATION_TIME);
+  reserve.expiry = GNUNET_TIME_absolute_max (expiry,
+                                             reserve.expiry);
+  if (GNUNET_OK != reserves_update (cls,
+                                    session,
+                                    &reserve))
+  {
+    GNUNET_break (0);
+    goto cleanup;
+  }
+  ret = GNUNET_OK;
+ cleanup:
+  PQclear (result);
+  return ret;
+}
+
+
+/**
+ * Get all of the transaction history associated with the specified
+ * reserve.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session connection to use
+ * @param reserve_pub public key of the reserve
+ * @return known transaction history (NULL if reserve is unknown)
+ */
+static struct TALER_EXCHANGEDB_ReserveHistory *
+postgres_get_reserve_history (void *cls,
+                              struct TALER_EXCHANGEDB_Session *session,
+                              const struct TALER_ReservePublicKeyP *reserve_pub)
+{
+  PGresult *result;
+  struct TALER_EXCHANGEDB_ReserveHistory *rh;
+  struct TALER_EXCHANGEDB_ReserveHistory *rh_tail;
+  int rows;
+  int ret;
+
+  rh = NULL;
+  rh_tail = NULL;
+  ret = GNUNET_SYSERR;
+  {
+    struct TALER_EXCHANGEDB_BankTransfer *bt;
+    struct GNUNET_PQ_QueryParam params[] = {
+      GNUNET_PQ_query_param_auto_from_type (reserve_pub),
+      GNUNET_PQ_query_param_end
+    };
+
+    result = GNUNET_PQ_exec_prepared (session->conn,
+                                     "reserves_in_get_transactions",
+                                     params);
+    if (PGRES_TUPLES_OK != PQresultStatus (result))
+    {
+      QUERY_ERR (result);
+      goto cleanup;
+    }
+    if (0 == (rows = PQntuples (result)))
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                  "Asked to fetch history for an unknown reserve.\n");
+      goto cleanup;
+    }
+    while (0 < rows)
+    {
+      bt = GNUNET_new (struct TALER_EXCHANGEDB_BankTransfer);
+      {
+        struct GNUNET_PQ_ResultSpec rs[] = {
+          TALER_PQ_result_spec_amount ("balance",
+                                       &bt->amount),
+          GNUNET_PQ_result_spec_absolute_time ("execution_date",
+                                              &bt->execution_date),
+          TALER_PQ_result_spec_json ("details",
+                                     &bt->wire),
+          GNUNET_PQ_result_spec_end
+        };
+        if (GNUNET_YES !=
+            GNUNET_PQ_extract_result (result, rs, --rows))
+        {
+          GNUNET_break (0);
+          GNUNET_free (bt);
+          PQclear (result);
+          goto cleanup;
+        }
+      }
+      bt->reserve_pub = *reserve_pub;
+      if (NULL != rh_tail)
+      {
+        rh_tail->next = GNUNET_new (struct TALER_EXCHANGEDB_ReserveHistory);
+        rh_tail = rh_tail->next;
+      }
+      else
+      {
+        rh_tail = GNUNET_new (struct TALER_EXCHANGEDB_ReserveHistory);
+        rh = rh_tail;
+      }
+      rh_tail->type = TALER_EXCHANGEDB_RO_BANK_TO_EXCHANGE;
+      rh_tail->details.bank = bt;
+    }
+    PQclear (result);
+  }
+  {
+    struct GNUNET_PQ_QueryParam params[] = {
+      GNUNET_PQ_query_param_auto_from_type (reserve_pub),
+      GNUNET_PQ_query_param_end
+    };
+
+    GNUNET_assert (NULL != rh);
+    GNUNET_assert (NULL != rh_tail);
+    GNUNET_assert (NULL == rh_tail->next);
+    result = GNUNET_PQ_exec_prepared (session->conn,
+                                     "get_reserves_out",
+                                     params);
+    if (PGRES_TUPLES_OK != PQresultStatus (result))
+    {
+      QUERY_ERR (result);
+      PQclear (result);
+      goto cleanup;
+    }
+    rows = PQntuples (result);
+    while (0 < rows)
+    {
+      struct TALER_EXCHANGEDB_CollectableBlindcoin *cbc;
+
+      cbc = GNUNET_new (struct TALER_EXCHANGEDB_CollectableBlindcoin);
+      {
+        struct GNUNET_PQ_ResultSpec rs[] = {
+          GNUNET_PQ_result_spec_auto_from_type ("h_blind_ev",
+                                               &cbc->h_coin_envelope),
+          GNUNET_PQ_result_spec_rsa_public_key ("denom_pub",
+                                               &cbc->denom_pub.rsa_public_key),
+          GNUNET_PQ_result_spec_rsa_signature ("denom_sig",
+                                              &cbc->sig.rsa_signature),
+          GNUNET_PQ_result_spec_auto_from_type ("reserve_sig",
+                                               &cbc->reserve_sig),
+          TALER_PQ_result_spec_amount ("amount_with_fee",
+                                       &cbc->amount_with_fee),
+          TALER_PQ_result_spec_amount ("withdraw_fee",
+                                       &cbc->withdraw_fee),
+          GNUNET_PQ_result_spec_end
+        };
+        if (GNUNET_YES !=
+            GNUNET_PQ_extract_result (result, rs, --rows))
+        {
+          GNUNET_break (0);
+          GNUNET_free (cbc);
+          PQclear (result);
+          goto cleanup;
+        }
+        cbc->reserve_pub = *reserve_pub;
+      }
+      rh_tail->next = GNUNET_new (struct TALER_EXCHANGEDB_ReserveHistory);
+      rh_tail = rh_tail->next;
+      rh_tail->type = TALER_EXCHANGEDB_RO_WITHDRAW_COIN;
+      rh_tail->details.withdraw = cbc;
+    }
+    ret = GNUNET_OK;
+    PQclear (result);
+  }
+ cleanup:
+  if (GNUNET_SYSERR == ret)
+  {
+    common_free_reserve_history (cls,
+                                 rh);
+    rh = NULL;
+  }
+  return rh;
+}
+
+
+/**
+ * Check if we have the specified deposit already in the database.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database connection
+ * @param deposit deposit to search for
+ * @return #GNUNET_YES if we know this operation,
+ *         #GNUNET_NO if this exact deposit is unknown to us
+ *         #GNUNET_SYSERR on DB error
+ */
+static int
+postgres_have_deposit (void *cls,
+                       struct TALER_EXCHANGEDB_Session *session,
+                       const struct TALER_EXCHANGEDB_Deposit *deposit)
+{
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (&deposit->coin.coin_pub),
+    GNUNET_PQ_query_param_uint64 (&deposit->transaction_id),
+    GNUNET_PQ_query_param_auto_from_type (&deposit->merchant_pub),
+    GNUNET_PQ_query_param_end
+  };
+  PGresult *result;
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "get_deposit",
+                                   params);
+  if (PGRES_TUPLES_OK !=
+      PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  if (0 == PQntuples (result))
+  {
+    PQclear (result);
+    return GNUNET_NO;
+  }
+
+  /* Now we check that the other information in @a deposit
+     also matches, and if not report inconsistencies. */
+  {
+    struct TALER_EXCHANGEDB_Deposit deposit2;
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      TALER_PQ_result_spec_amount ("amount_with_fee",
+                                   &deposit2.amount_with_fee),
+      GNUNET_PQ_result_spec_absolute_time ("timestamp",
+                                          &deposit2.timestamp),
+      GNUNET_PQ_result_spec_absolute_time ("refund_deadline",
+                                          &deposit2.refund_deadline),
+      GNUNET_PQ_result_spec_absolute_time ("wire_deadline",
+                                          &deposit2.wire_deadline),
+      GNUNET_PQ_result_spec_auto_from_type ("h_contract",
+                                           &deposit2.h_contract),
+      GNUNET_PQ_result_spec_auto_from_type ("h_wire",
+                                           &deposit2.h_wire),
+      GNUNET_PQ_result_spec_end
+    };
+    if (GNUNET_OK !=
+        GNUNET_PQ_extract_result (result, rs, 0))
+    {
+      GNUNET_break (0);
+      PQclear (result);
+      return GNUNET_SYSERR;
+    }
+    if ( (0 != TALER_amount_cmp (&deposit->amount_with_fee,
+                                 &deposit2.amount_with_fee)) ||
+         (deposit->timestamp.abs_value_us !=
+          deposit2.timestamp.abs_value_us) ||
+         (deposit->refund_deadline.abs_value_us !=
+          deposit2.refund_deadline.abs_value_us) ||
+         (0 != memcmp (&deposit->h_contract,
+                       &deposit2.h_contract,
+                       sizeof (struct GNUNET_HashCode))) ||
+         (0 != memcmp (&deposit->h_wire,
+                       &deposit2.h_wire,
+                       sizeof (struct GNUNET_HashCode))) )
+    {
+      /* Inconsistencies detected! Does not match!  (We might want to
+         expand the API with a 'get_deposit' function to return the
+         original transaction details to be used for an error message
+         in the future!) #3838 */
+      PQclear (result);
+      return GNUNET_NO;
+    }
+  }
+  PQclear (result);
+  return GNUNET_YES;
+}
+
+
+/**
+ * Mark a deposit as tiny, thereby declaring that it cannot be
+ * executed by itself and should no longer be returned by
+ * @e iterate_ready_deposits()
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param session connection to the database
+ * @param deposit_rowid identifies the deposit row to modify
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
+ */
+static int
+postgres_mark_deposit_tiny (void *cls,
+                            struct TALER_EXCHANGEDB_Session *session,
+                            unsigned long long rowid)
+{
+  uint64_t serial_id = rowid;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_uint64 (&serial_id),
+    GNUNET_PQ_query_param_end
+  };
+  PGresult *result;
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "mark_deposit_tiny",
+                                   params);
+  if (PGRES_COMMAND_OK !=
+      PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  PQclear (result);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Mark a deposit as done, thereby declaring that it cannot be
+ * executed at all anymore, and should no longer be returned by
+ * @e iterate_ready_deposits() or @e iterate_matching_deposits().
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param session connection to the database
+ * @param deposit_rowid identifies the deposit row to modify
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
+ */
+static int
+postgres_mark_deposit_done (void *cls,
+                            struct TALER_EXCHANGEDB_Session *session,
+                            unsigned long long rowid)
+{
+  uint64_t serial_id = rowid;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_uint64 (&serial_id),
+    GNUNET_PQ_query_param_end
+  };
+  PGresult *result;
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "mark_deposit_done",
+                                   params);
+  if (PGRES_COMMAND_OK !=
+      PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  PQclear (result);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Obtain information about deposits that are ready to be executed.
+ * Such deposits must not be marked as "tiny" or "done", and the
+ * execution time must be in the past.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param session connection to the database
+ * @param deposit_cb function to call for ONE such deposit
+ * @param deposit_cb_cls closure for @a deposit_cb
+ * @return number of rows processed, 0 if none exist,
+ *         #GNUNET_SYSERR on error
+ */
+static int
+postgres_get_ready_deposit (void *cls,
+                            struct TALER_EXCHANGEDB_Session *session,
+                            TALER_EXCHANGEDB_DepositIterator deposit_cb,
+                            void *deposit_cb_cls)
+{
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_end
+  };
+  PGresult *result;
+  unsigned int n;
+  int ret;
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "deposits_get_ready",
+                                   params);
+  if (PGRES_TUPLES_OK !=
+      PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  if (0 == (n = PQntuples (result)))
+  {
+    PQclear (result);
+    return 0;
+  }
+  GNUNET_break (1 == n);
+  {
+    struct TALER_Amount amount_with_fee;
+    struct TALER_Amount deposit_fee;
+    struct GNUNET_TIME_Absolute wire_deadline;
+    struct GNUNET_HashCode h_contract;
+    struct TALER_MerchantPublicKeyP merchant_pub;
+    struct TALER_CoinSpendPublicKeyP coin_pub;
+    uint64_t transaction_id;
+    uint64_t serial_id;
+    json_t *wire;
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_uint64 ("serial_id",
+                                   &serial_id),
+      GNUNET_PQ_result_spec_uint64 ("transaction_id",
+                                   &transaction_id),
+      TALER_PQ_result_spec_amount ("amount_with_fee",
+                                   &amount_with_fee),
+      TALER_PQ_result_spec_amount ("deposit_fee",
+                                   &deposit_fee),
+      GNUNET_PQ_result_spec_absolute_time ("wire_deadline",
+                                          &wire_deadline),
+      GNUNET_PQ_result_spec_auto_from_type ("h_contract",
+                                           &h_contract),
+      GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
+                                           &merchant_pub),
+      GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
+                                           &coin_pub),
+      TALER_PQ_result_spec_json ("wire",
+                                 &wire),
+      GNUNET_PQ_result_spec_end
+    };
+    if (GNUNET_OK !=
+        GNUNET_PQ_extract_result (result, rs, 0))
+    {
+      GNUNET_break (0);
+      PQclear (result);
+      return GNUNET_SYSERR;
+    }
+    ret = deposit_cb (deposit_cb_cls,
+                      serial_id,
+                      &merchant_pub,
+                      &coin_pub,
+                      &amount_with_fee,
+                      &deposit_fee,
+                      transaction_id,
+                      &h_contract,
+                      wire_deadline,
+                      wire);
+    GNUNET_PQ_cleanup_result (rs);
+    PQclear (result);
+  }
+  return (GNUNET_OK == ret) ? 1 : 0;
+}
+
+
+/**
+ * Obtain information about other pending deposits for the same
+ * destination.  Those deposits must not already be "done".
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param session connection to the database
+ * @param h_wire destination of the wire transfer
+ * @param merchant_pub public key of the merchant
+ * @param deposit_cb function to call for each deposit
+ * @param deposit_cb_cls closure for @a deposit_cb
+ * @param limit maximum number of matching deposits to return
+ * @return number of rows processed, 0 if none exist,
+ *         #GNUNET_SYSERR on error
+ */
+static int
+postgres_iterate_matching_deposits (void *cls,
+                                    struct TALER_EXCHANGEDB_Session *session,
+                                    const struct GNUNET_HashCode *h_wire,
+                                    const struct TALER_MerchantPublicKeyP *merchant_pub,
+                                    TALER_EXCHANGEDB_DepositIterator deposit_cb,
+                                    void *deposit_cb_cls,
+                                    uint32_t limit)
+{
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (merchant_pub),
+    GNUNET_PQ_query_param_auto_from_type (h_wire),
+    GNUNET_PQ_query_param_uint32 (&limit),
+    GNUNET_PQ_query_param_end
+  };
+  PGresult *result;
+  unsigned int i;
+  unsigned int n;
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "deposits_iterate_matching",
+                                   params);
+  if (PGRES_TUPLES_OK !=
+      PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  if (0 == (n = PQntuples (result)))
+  {
+    PQclear (result);
+    return 0;
+  }
+  if (n > limit)
+    n = limit;
+  for (i=0;i<n;i++)
+  {
+    struct TALER_Amount amount_with_fee;
+    struct TALER_Amount deposit_fee;
+    struct GNUNET_TIME_Absolute wire_deadline;
+    struct GNUNET_HashCode h_contract;
+    struct TALER_MerchantPublicKeyP merchant_pub;
+    struct TALER_CoinSpendPublicKeyP coin_pub;
+    uint64_t transaction_id;
+    uint64_t serial_id;
+    int ret;
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_uint64 ("serial_id",
+                                   &serial_id),
+      GNUNET_PQ_result_spec_uint64 ("transaction_id",
+                                   &transaction_id),
+      TALER_PQ_result_spec_amount ("amount_with_fee",
+                                   &amount_with_fee),
+      TALER_PQ_result_spec_amount ("deposit_fee",
+                                   &deposit_fee),
+      GNUNET_PQ_result_spec_absolute_time ("wire_deadline",
+                                          &wire_deadline),
+      GNUNET_PQ_result_spec_auto_from_type ("h_contract",
+                                           &h_contract),
+      GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
+                                           &merchant_pub),
+      GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
+                                           &coin_pub),
+      GNUNET_PQ_result_spec_end
+    };
+    if (GNUNET_OK !=
+        GNUNET_PQ_extract_result (result, rs, i))
+    {
+      GNUNET_break (0);
+      PQclear (result);
+      return GNUNET_SYSERR;
+    }
+    ret = deposit_cb (deposit_cb_cls,
+                      serial_id,
+                      &merchant_pub,
+                      &coin_pub,
+                      &amount_with_fee,
+                      &deposit_fee,
+                      transaction_id,
+                      &h_contract,
+                      wire_deadline,
+                      NULL);
+    GNUNET_PQ_cleanup_result (rs);
+    PQclear (result);
+    if (GNUNET_OK != ret)
+      break;
+  }
+  return i;
+}
+
+
+/**
+ * Insert information about deposited coin into the database.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session connection to the database
+ * @param deposit deposit information to store
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
+ */
+static int
+postgres_insert_deposit (void *cls,
+                         struct TALER_EXCHANGEDB_Session *session,
+                         const struct TALER_EXCHANGEDB_Deposit *deposit)
+{
+  PGresult *result;
+  int ret;
+
+  {
+    struct GNUNET_PQ_QueryParam params[] = {
+      GNUNET_PQ_query_param_auto_from_type (&deposit->coin.coin_pub),
+      GNUNET_PQ_query_param_rsa_public_key (deposit->coin.denom_pub.rsa_public_key),
+      GNUNET_PQ_query_param_rsa_signature (deposit->coin.denom_sig.rsa_signature),
+      GNUNET_PQ_query_param_uint64 (&deposit->transaction_id),
+      TALER_PQ_query_param_amount (&deposit->amount_with_fee),
+      TALER_PQ_query_param_amount (&deposit->deposit_fee),
+      GNUNET_PQ_query_param_absolute_time (&deposit->timestamp),
+      GNUNET_PQ_query_param_absolute_time (&deposit->refund_deadline),
+      GNUNET_PQ_query_param_absolute_time (&deposit->wire_deadline),
+      GNUNET_PQ_query_param_auto_from_type (&deposit->merchant_pub),
+      GNUNET_PQ_query_param_auto_from_type (&deposit->h_contract),
+      GNUNET_PQ_query_param_auto_from_type (&deposit->h_wire),
+      GNUNET_PQ_query_param_auto_from_type (&deposit->csig),
+      TALER_PQ_query_param_json (deposit->wire),
+      GNUNET_PQ_query_param_end
+    };
+    result = GNUNET_PQ_exec_prepared (session->conn,
+                                     "insert_deposit",
+                                     params);
+  }
+  if (PGRES_COMMAND_OK != PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    ret = GNUNET_SYSERR;
+  }
+  else
+  {
+    ret = GNUNET_OK;
+  }
+  PQclear (result);
+  return ret;
+}
+
+
+/**
+ * Lookup refresh session data under the given @a session_hash.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database handle to use
+ * @param session_hash hash over the melt to use to locate the session
+ * @param[out] refresh_session where to store the result, can be NULL
+ *             to just check if the session exists
+ * @return #GNUNET_YES on success,
+ *         #GNUNET_NO if not found,
+ *         #GNUNET_SYSERR on DB failure
+ */
+static int
+postgres_get_refresh_session (void *cls,
+                              struct TALER_EXCHANGEDB_Session *session,
+                              const struct GNUNET_HashCode *session_hash,
+                              struct TALER_EXCHANGEDB_RefreshSession *refresh_session)
+{
+  PGresult *result;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (session_hash),
+    GNUNET_PQ_query_param_end
+  };
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "get_refresh_session",
+                                   params);
+  if (PGRES_TUPLES_OK != PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  if (0 == PQntuples (result))
+  {
+    PQclear (result);
+    return GNUNET_NO;
+  }
+  GNUNET_assert (1 == PQntuples (result));
+  if (NULL == refresh_session)
+  {
+    /* We're done if the caller is only interested in whether the
+     * session exists or not */
+    PQclear (result);
+    return GNUNET_YES;
+  }
+  memset (refresh_session,
+          0,
+          sizeof (struct TALER_EXCHANGEDB_RefreshSession));
+  {
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_uint16 ("num_oldcoins",
+                                   &refresh_session->num_oldcoins),
+      GNUNET_PQ_result_spec_uint16 ("num_newcoins",
+                                   &refresh_session->num_newcoins),
+      GNUNET_PQ_result_spec_uint16 ("noreveal_index",
+                                   &refresh_session->noreveal_index),
+      GNUNET_PQ_result_spec_end
+    };
+    if (GNUNET_OK !=
+        GNUNET_PQ_extract_result (result, rs, 0))
+    {
+      GNUNET_break (0);
+      PQclear (result);
+      return GNUNET_SYSERR;
+    }
+  }
+  PQclear (result);
+  return GNUNET_YES;
+}
+
+
+/**
+ * Store new refresh session data under the given @a session_hash.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database handle to use
+ * @param session_hash hash over the melt to use to locate the session
+ * @param refresh_session session data to store
+ * @return #GNUNET_YES on success,
+ *         #GNUNET_SYSERR on DB failure
+ */
+static int
+postgres_create_refresh_session (void *cls,
+                                 struct TALER_EXCHANGEDB_Session *session,
+                                 const struct GNUNET_HashCode *session_hash,
+                                 const struct TALER_EXCHANGEDB_RefreshSession *refresh_session)
+{
+  PGresult *result;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (session_hash),
+    GNUNET_PQ_query_param_uint16 (&refresh_session->num_oldcoins),
+    GNUNET_PQ_query_param_uint16 (&refresh_session->num_newcoins),
+    GNUNET_PQ_query_param_uint16 (&refresh_session->noreveal_index),
+    GNUNET_PQ_query_param_end
+  };
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "insert_refresh_session",
+                                   params);
+  if (PGRES_COMMAND_OK != PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  PQclear (result);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Insert a coin we know of into the DB.  The coin can then be referenced by
+ * tables for deposits, lock and refresh functionality.
+ *
+ * @param cls plugin closure
+ * @param session the shared database session
+ * @param coin_info the public coin info
+ * @return #GNUNET_SYSERR upon error; #GNUNET_OK upon success
+ */
+static int
+insert_known_coin (void *cls,
+                   struct TALER_EXCHANGEDB_Session *session,
+                   const struct TALER_CoinPublicInfo *coin_info)
+{
+  PGresult *result;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (&coin_info->coin_pub),
+    GNUNET_PQ_query_param_rsa_public_key (coin_info->denom_pub.rsa_public_key),
+    GNUNET_PQ_query_param_rsa_signature (coin_info->denom_sig.rsa_signature),
+    GNUNET_PQ_query_param_end
+  };
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "insert_known_coin",
+                                   params);
+  if (PGRES_COMMAND_OK != PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  PQclear (result);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Retrieve the record for a known coin.
+ *
+ * @param cls the plugin closure
+ * @param session the database session handle
+ * @param coin_pub the public key of the coin to search for
+ * @param coin_info place holder for the returned coin information object
+ * @return #GNUNET_SYSERR upon error; #GNUNET_NO if no coin is found; #GNUNET_OK
+ *           if upon succesfullying retrieving the record data info @a
+ *           coin_info
+ */
+static int
+get_known_coin (void *cls,
+                struct TALER_EXCHANGEDB_Session *session,
+                const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                struct TALER_CoinPublicInfo *coin_info)
+{
+  PGresult *result;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (coin_pub),
+    GNUNET_PQ_query_param_end
+  };
+  int nrows;
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "get_known_coin",
+                                   params);
+  if (PGRES_TUPLES_OK != PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  nrows = PQntuples (result);
+  if (0 == nrows)
+  {
+    PQclear (result);
+    return GNUNET_NO;
+  }
+  GNUNET_assert (1 == nrows);   /* due to primary key */
+  if (NULL == coin_info)
+    return GNUNET_YES;
+  {
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_rsa_public_key ("denom_pub",
+                                           &coin_info->denom_pub.rsa_public_key),
+      GNUNET_PQ_result_spec_rsa_signature ("denom_sig",
+                                          &coin_info->denom_sig.rsa_signature),
+      GNUNET_PQ_result_spec_end
+    };
+
+    if (GNUNET_OK !=
+        GNUNET_PQ_extract_result (result, rs, 0))
+    {
+      PQclear (result);
+      GNUNET_break (0);
+      return GNUNET_SYSERR;
+    }
+  }
+  PQclear (result);
+  coin_info->coin_pub = *coin_pub;
+  return GNUNET_OK;
+}
+
+
+/**
+ * Store the given /refresh/melt request in the database.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database connection
+ * @param oldcoin_index index of the coin to store
+ * @param melt melt operation details to store; includes
+ *             the session hash of the melt
+ * @return #GNUNET_OK on success
+ *         #GNUNET_SYSERR on internal error
+ */
+static int
+postgres_insert_refresh_melt (void *cls,
+                              struct TALER_EXCHANGEDB_Session *session,
+                              uint16_t oldcoin_index,
+                              const struct TALER_EXCHANGEDB_RefreshMelt *melt)
+{
+  PGresult *result;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (&melt->coin.coin_pub),
+    GNUNET_PQ_query_param_auto_from_type (&melt->session_hash),
+    GNUNET_PQ_query_param_uint16 (&oldcoin_index),
+    GNUNET_PQ_query_param_auto_from_type (&melt->coin_sig),
+    TALER_PQ_query_param_amount (&melt->amount_with_fee),
+    TALER_PQ_query_param_amount (&melt->melt_fee),
+    GNUNET_PQ_query_param_end
+  };
+  int ret;
+
+  /* check if the coin is already known */
+  ret = get_known_coin (cls,
+                        session,
+                        &melt->coin.coin_pub,
+                        NULL);
+  if (GNUNET_SYSERR == ret)
+  {
+    GNUNET_break (0);
+    return GNUNET_SYSERR;
+  }
+  if (GNUNET_NO == ret)         /* if not, insert it */
+  {
+    ret = insert_known_coin (cls,
+                             session,
+                             &melt->coin);
+    if (ret == GNUNET_SYSERR)
+    {
+      GNUNET_break (0);
+      return GNUNET_SYSERR;
+    }
+  }
+  /* insert the melt */
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "insert_refresh_melt",
+                                   params);
+  if (PGRES_COMMAND_OK != PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  PQclear (result);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Get information about melted coin details from the database.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database connection
+ * @param session_hash  session hash of the melt operation
+ * @param oldcoin_index index of the coin to retrieve
+ * @param melt melt data to fill in, can be NULL
+ * @return #GNUNET_OK on success
+ *         #GNUNET_SYSERR on internal error
+ */
+static int
+postgres_get_refresh_melt (void *cls,
+                           struct TALER_EXCHANGEDB_Session *session,
+                           const struct GNUNET_HashCode *session_hash,
+                           uint16_t oldcoin_index,
+                           struct TALER_EXCHANGEDB_RefreshMelt *melt)
+{
+  PGresult *result;
+  struct TALER_CoinPublicInfo coin;
+  struct TALER_CoinSpendSignatureP coin_sig;
+  struct TALER_Amount amount_with_fee;
+  struct TALER_Amount melt_fee;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (session_hash),
+    GNUNET_PQ_query_param_uint16 (&oldcoin_index),
+    GNUNET_PQ_query_param_end
+  };
+  int nrows;
+
+  /* check if the melt record exists and get it */
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "get_refresh_melt",
+                                   params);
+  if (PGRES_TUPLES_OK != PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  nrows = PQntuples (result);
+  if (0 == nrows)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "get_refresh_melt() returned 0 matching rows\n");
+    PQclear (result);
+    return GNUNET_NO;
+  }
+  GNUNET_assert (1 == nrows);    /* due to primary key constraint */
+  {
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_auto_from_type ("coin_pub", &coin.coin_pub),
+      GNUNET_PQ_result_spec_auto_from_type ("coin_sig", &coin_sig),
+      TALER_PQ_result_spec_amount ("amount_with_fee", &amount_with_fee),
+      TALER_PQ_result_spec_amount ("melt_fee", &melt_fee),
+      GNUNET_PQ_result_spec_end
+    };
+    if (GNUNET_OK != GNUNET_PQ_extract_result (result, rs, 0))
+    {
+      GNUNET_break (0);
+      PQclear (result);
+      return GNUNET_SYSERR;
+    }
+    PQclear (result);
+  }
+  /* fetch the coin info and denomination info */
+  if (GNUNET_OK != get_known_coin (cls,
+                                   session,
+                                   &coin.coin_pub,
+                                   &coin))
+    return GNUNET_SYSERR;
+  if (NULL == melt)
+  {
+    GNUNET_CRYPTO_rsa_signature_free (coin.denom_sig.rsa_signature);
+    GNUNET_CRYPTO_rsa_public_key_free (coin.denom_pub.rsa_public_key);
+    return GNUNET_OK;
+  }
+  melt->coin = coin;
+  melt->coin_sig = coin_sig;
+  melt->session_hash = *session_hash;
+  melt->amount_with_fee = amount_with_fee;
+  melt->melt_fee = melt_fee;
+  return GNUNET_OK;
+}
+
+
+/**
+ * Store in the database which coin(s) we want to create
+ * in a given refresh operation.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database connection
+ * @param session_hash hash to identify refresh session
+ * @param num_newcoins number of coins to generate, size of the @a denom_pubs array
+ * @param denom_pubs array denominations of the coins to create
+ * @return #GNUNET_OK on success
+ *         #GNUNET_SYSERR on internal error
+ */
+static int
+postgres_insert_refresh_order (void *cls,
+                               struct TALER_EXCHANGEDB_Session *session,
+                               const struct GNUNET_HashCode *session_hash,
+                               uint16_t num_newcoins,
+                               const struct TALER_DenominationPublicKey *denom_pubs)
+{
+  unsigned int i;
+
+  for (i=0;i<(unsigned int) num_newcoins;i++)
+  {
+    uint16_t newcoin_off = (uint16_t) i;
+    PGresult *result;
+
+    {
+      struct GNUNET_PQ_QueryParam params[] = {
+        GNUNET_PQ_query_param_uint16 (&newcoin_off),
+        GNUNET_PQ_query_param_auto_from_type (session_hash),
+        GNUNET_PQ_query_param_rsa_public_key (denom_pubs[i].rsa_public_key),
+        GNUNET_PQ_query_param_end
+      };
+      result = GNUNET_PQ_exec_prepared (session->conn,
+                                       "insert_refresh_order",
+                                       params);
+    }
+    if (PGRES_COMMAND_OK != PQresultStatus (result))
+    {
+      BREAK_DB_ERR (result);
+      PQclear (result);
+      return GNUNET_SYSERR;
+    }
+    if (0 != strcmp ("1", PQcmdTuples (result)))
+    {
+      GNUNET_break (0);
+      return GNUNET_SYSERR;
+    }
+    PQclear (result);
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * We allocated some @a denom_pubs information, but now need
+ * to abort. Free allocated memory.
+ *
+ * @param denom_pubs data to free (but not the array itself)
+ * @param denom_pubs_len length of @a denom_pubs array
+ */
+static void
+free_dpk_result (struct TALER_DenominationPublicKey *denom_pubs,
+                 unsigned int denom_pubs_len)
+{
+  unsigned int i;
+
+  for (i=0;i<denom_pubs_len;i++)
+  {
+    GNUNET_CRYPTO_rsa_public_key_free (denom_pubs[i].rsa_public_key);
+    denom_pubs[i].rsa_public_key = NULL;
+  }
+}
+
+
+/**
+ * Lookup in the database the coins that we want to
+ * create in the given refresh operation.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database connection
+ * @param session_hash hash to identify refresh session
+ * @param num_newcoins size of the array of the @a denom_pubs array
+ * @param denom_pubs where to store the deomination keys
+ * @return #GNUNET_OK on success
+ *         #GNUNET_SYSERR on internal error
+ */
+static int
+postgres_get_refresh_order (void *cls,
+                            struct TALER_EXCHANGEDB_Session *session,
+                            const struct GNUNET_HashCode *session_hash,
+                            uint16_t num_newcoins,
+                            struct TALER_DenominationPublicKey *denom_pubs)
+{
+  unsigned int i;
+
+  for (i=0;i<(unsigned int) num_newcoins;i++)
+  {
+    uint16_t newcoin_off = (uint16_t) i;
+    PGresult *result;
+
+    {
+      struct GNUNET_PQ_QueryParam params[] = {
+        GNUNET_PQ_query_param_auto_from_type (session_hash),
+        GNUNET_PQ_query_param_uint16 (&newcoin_off),
+        GNUNET_PQ_query_param_end
+      };
+
+      result = GNUNET_PQ_exec_prepared (session->conn,
+                                       "get_refresh_order",
+                                       params);
+    }
+    if (PGRES_TUPLES_OK != PQresultStatus (result))
+    {
+      BREAK_DB_ERR (result);
+      PQclear (result);
+      free_dpk_result (denom_pubs, i);
+      return GNUNET_SYSERR;
+    }
+    if (0 == PQntuples (result))
+    {
+      PQclear (result);
+      /* FIXME: may want to distinguish between different error cases! */
+      free_dpk_result (denom_pubs, i);
+      return GNUNET_SYSERR;
+    }
+    GNUNET_assert (1 == PQntuples (result));
+    {
+      struct GNUNET_PQ_ResultSpec rs[] = {
+        GNUNET_PQ_result_spec_rsa_public_key ("denom_pub",
+                                             &denom_pubs[i].rsa_public_key),
+        GNUNET_PQ_result_spec_end
+      };
+      if (GNUNET_OK !=
+          GNUNET_PQ_extract_result (result, rs, 0))
+      {
+        PQclear (result);
+        GNUNET_break (0);
+        free_dpk_result (denom_pubs, i);
+        return GNUNET_SYSERR;
+      }
+      PQclear (result);
+    }
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Store information about the commitment of the
+ * given coin for the given refresh session in the database.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database connection to use
+ * @param session_hash hash to identify refresh session
+ * @param cnc_index cut and choose index (1st dimension)
+ * @param num_newcoins coin index size of the @a commit_coins array
+ * @param commit_coins array of coin commitments to store
+ * @return #GNUNET_OK on success
+ *         #GNUNET_SYSERR on error
+ */
+static int
+postgres_insert_refresh_commit_coins (void *cls,
+                                      struct TALER_EXCHANGEDB_Session *session,
+                                      const struct GNUNET_HashCode *session_hash,
+                                      uint16_t cnc_index,
+                                      uint16_t num_newcoins,
+                                      const struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coins)
+{
+  char *rle;
+  size_t rle_size;
+  PGresult *result;
+  unsigned int i;
+  uint16_t coin_off;
+
+  for (i=0;i<(unsigned int) num_newcoins;i++)
+  {
+    rle = TALER_refresh_link_encrypted_encode (commit_coins[i].refresh_link,
+                                               &rle_size);
+    if (NULL == rle)
+    {
+      GNUNET_break (0);
+      return GNUNET_SYSERR;
+    }
+    coin_off = (uint16_t) i;
+    {
+      struct GNUNET_PQ_QueryParam params[] = {
+        GNUNET_PQ_query_param_auto_from_type (session_hash),
+        GNUNET_PQ_query_param_uint16 (&cnc_index),
+        GNUNET_PQ_query_param_uint16 (&coin_off),
+        GNUNET_PQ_query_param_fixed_size (rle,
+                                         rle_size),
+        GNUNET_PQ_query_param_fixed_size (commit_coins[i].coin_ev,
+                                         commit_coins[i].coin_ev_size),
+        GNUNET_PQ_query_param_end
+      };
+      result = GNUNET_PQ_exec_prepared (session->conn,
+                                       "insert_refresh_commit_coin",
+                                       params);
+    }
+    GNUNET_free (rle);
+    if (PGRES_COMMAND_OK != PQresultStatus (result))
+    {
+      BREAK_DB_ERR (result);
+      PQclear (result);
+      return GNUNET_SYSERR;
+    }
+    if (0 != strcmp ("1", PQcmdTuples (result)))
+    {
+      GNUNET_break (0);
+      PQclear (result);
+      return GNUNET_SYSERR;
+    }
+    PQclear (result);
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * We allocated some @a commit_coin information, but now need
+ * to abort. Free allocated memory.
+ *
+ * @param commit_coins data to free (but not the array itself)
+ * @param commit_coins_len length of @a commit_coins array
+ */
+static void
+free_cc_result (struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coins,
+                unsigned int commit_coins_len)
+{
+  unsigned int i;
+
+  for (i=0;i<commit_coins_len;i++)
+  {
+    GNUNET_free (commit_coins[i].refresh_link);
+    commit_coins[i].refresh_link = NULL;
+    GNUNET_free (commit_coins[i].coin_ev);
+    commit_coins[i].coin_ev = NULL;
+    commit_coins[i].coin_ev_size = 0;
+  }
+}
+
+
+/**
+ * Obtain information about the commitment of the
+ * given coin of the given refresh session from the database.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database connection to use
+ * @param session_hash hash to identify refresh session
+ * @param cnc_index set index (1st dimension)
+ * @param num_newcoins size of the @a commit_coins array
+ * @param[out] commit_coins array of coin commitments to return
+ * @return #GNUNET_OK on success
+ *         #GNUNET_NO if not found
+ *         #GNUNET_SYSERR on error
+ */
+static int
+postgres_get_refresh_commit_coins (void *cls,
+                                   struct TALER_EXCHANGEDB_Session *session,
+                                   const struct GNUNET_HashCode *session_hash,
+                                   uint16_t cnc_index,
+                                   uint16_t num_newcoins,
+                                   struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coins)
+{
+  unsigned int i;
+
+  for (i=0;i<(unsigned int) num_newcoins;i++)
+  {
+    uint16_t newcoin_off = (uint16_t) i;
+    struct GNUNET_PQ_QueryParam params[] = {
+      GNUNET_PQ_query_param_auto_from_type (session_hash),
+      GNUNET_PQ_query_param_uint16 (&cnc_index),
+      GNUNET_PQ_query_param_uint16 (&newcoin_off),
+      GNUNET_PQ_query_param_end
+    };
+    void *c_buf;
+    size_t c_buf_size;
+    void *rl_buf;
+    size_t rl_buf_size;
+    struct TALER_RefreshLinkEncrypted *rl;
+    PGresult *result;
+
+    result = GNUNET_PQ_exec_prepared (session->conn,
+                                     "get_refresh_commit_coin",
+                                     params);
+    if (PGRES_TUPLES_OK != PQresultStatus (result))
+    {
+      BREAK_DB_ERR (result);
+      PQclear (result);
+      free_cc_result (commit_coins, i);
+      return GNUNET_SYSERR;
+    }
+    if (0 == PQntuples (result))
+    {
+      PQclear (result);
+      free_cc_result (commit_coins, i);
+      return GNUNET_NO;
+    }
+    {
+      struct GNUNET_PQ_ResultSpec rs[] = {
+        GNUNET_PQ_result_spec_variable_size ("link_vector_enc",
+                                            &rl_buf,
+                                            &rl_buf_size),
+        GNUNET_PQ_result_spec_variable_size ("coin_ev",
+                                            &c_buf,
+                                            &c_buf_size),
+        GNUNET_PQ_result_spec_end
+      };
+
+      if (GNUNET_YES !=
+          GNUNET_PQ_extract_result (result, rs, 0))
+      {
+        PQclear (result);
+        free_cc_result (commit_coins, i);
+        return GNUNET_SYSERR;
+      }
+    }
+    PQclear (result);
+    if (rl_buf_size < sizeof (struct TALER_CoinSpendPrivateKeyP))
+    {
+      GNUNET_free (c_buf);
+      GNUNET_free (rl_buf);
+      free_cc_result (commit_coins, i);
+      return GNUNET_SYSERR;
+    }
+    rl = TALER_refresh_link_encrypted_decode (rl_buf,
+                                              rl_buf_size);
+    GNUNET_free (rl_buf);
+    commit_coins[i].refresh_link = rl;
+    commit_coins[i].coin_ev = c_buf;
+    commit_coins[i].coin_ev_size = c_buf_size;
+  }
+  return GNUNET_YES;
+}
+
+
+/**
+ * Store the commitment to the given (encrypted) refresh link data
+ * for the given refresh session.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database connection to use
+ * @param session_hash hash to identify refresh session
+ * @param cnc_index cut and choose index (1st dimension)
+ * @param num_links size of the @a links array to return
+ * @param[out] links array of link information to store return
+ * @return #GNUNET_SYSERR on internal error, #GNUNET_OK on success
+ */
+static int
+postgres_insert_refresh_commit_links (void *cls,
+                                      struct TALER_EXCHANGEDB_Session *session,
+                                      const struct GNUNET_HashCode *session_hash,
+                                      uint16_t cnc_index,
+                                      uint16_t num_links,
+                                      const struct TALER_RefreshCommitLinkP *links)
+{
+  uint16_t i;
+
+  for (i=0;i<num_links;i++)
+  {
+    struct GNUNET_PQ_QueryParam params[] = {
+      GNUNET_PQ_query_param_auto_from_type (session_hash),
+      GNUNET_PQ_query_param_auto_from_type (&links[i].transfer_pub),
+      GNUNET_PQ_query_param_uint16 (&cnc_index),
+      GNUNET_PQ_query_param_uint16 (&i),
+      GNUNET_PQ_query_param_auto_from_type (&links[i].shared_secret_enc),
+      GNUNET_PQ_query_param_end
+    };
+
+    PGresult *result = GNUNET_PQ_exec_prepared (session->conn,
+					       "insert_refresh_commit_link",
+					       params);
+    if (PGRES_COMMAND_OK != PQresultStatus (result))
+    {
+      BREAK_DB_ERR (result);
+      PQclear (result);
+      return GNUNET_SYSERR;
+    }
+
+    if (0 != strcmp ("1", PQcmdTuples (result)))
+    {
+      GNUNET_break (0);
+      return GNUNET_SYSERR;
+    }
+    PQclear (result);
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Obtain the commited (encrypted) refresh link data
+ * for the given refresh session.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database connection to use
+ * @param session_hash hash to identify refresh session
+ * @param cnc_index cut and choose index (1st dimension)
+ * @param num_links size of the @a commit_link array
+ * @param[out] links array of link information to return
+ * @return #GNUNET_SYSERR on internal error,
+ *         #GNUNET_NO if commitment was not found
+ *         #GNUNET_OK on success
+ */
+static int
+postgres_get_refresh_commit_links (void *cls,
+                                   struct TALER_EXCHANGEDB_Session *session,
+                                   const struct GNUNET_HashCode *session_hash,
+                                   uint16_t cnc_index,
+                                   uint16_t num_links,
+                                   struct TALER_RefreshCommitLinkP *links)
+{
+  uint16_t i;
+
+  for (i=0;i<num_links;i++)
+  {
+    struct GNUNET_PQ_QueryParam params[] = {
+      GNUNET_PQ_query_param_auto_from_type (session_hash),
+      GNUNET_PQ_query_param_uint16 (&cnc_index),
+      GNUNET_PQ_query_param_uint16 (&i),
+      GNUNET_PQ_query_param_end
+    };
+    PGresult *result;
+
+    result = GNUNET_PQ_exec_prepared (session->conn,
+				     "get_refresh_commit_link",
+				     params);
+    if (PGRES_TUPLES_OK != PQresultStatus (result))
+    {
+      BREAK_DB_ERR (result);
+      PQclear (result);
+      return GNUNET_SYSERR;
+    }
+    if (0 == PQntuples (result))
+    {
+      PQclear (result);
+      return GNUNET_NO;
+    }
+    {
+      struct GNUNET_PQ_ResultSpec rs[] = {
+	GNUNET_PQ_result_spec_auto_from_type ("transfer_pub",
+					     &links[i].transfer_pub),
+	GNUNET_PQ_result_spec_auto_from_type ("link_secret_enc",
+					     &links[i].shared_secret_enc),
+	GNUNET_PQ_result_spec_end
+      };
+
+      if (GNUNET_YES !=
+	  GNUNET_PQ_extract_result (result, rs, 0))
+      {
+	PQclear (result);
+	return GNUNET_SYSERR;
+      }
+    }
+    PQclear (result);
+  }
+  return GNUNET_OK;
+}
+
+
+/**
+ * Get all of the information from the given melt commit operation.
+ *
+ * @param cls the @e cls of this struct with the plugin-specific state
+ * @param session database connection to use
+ * @param session_hash hash to identify refresh session
+ * @return NULL if the @a session_hash does not correspond to any known melt
+ *         operation
+ */
+static struct TALER_EXCHANGEDB_MeltCommitment *
+postgres_get_melt_commitment (void *cls,
+                              struct TALER_EXCHANGEDB_Session *session,
+                              const struct GNUNET_HashCode *session_hash)
+{
+  struct TALER_EXCHANGEDB_RefreshSession rs;
+  struct TALER_EXCHANGEDB_MeltCommitment *mc;
+  uint16_t cnc_index;
+  unsigned int i;
+
+  if (GNUNET_OK !=
+      postgres_get_refresh_session (cls,
+                                    session,
+                                    session_hash,
+                                    &rs))
+    return NULL;
+  mc = GNUNET_new (struct TALER_EXCHANGEDB_MeltCommitment);
+  mc->num_newcoins = rs.num_newcoins;
+  mc->num_oldcoins = rs.num_oldcoins;
+  mc->melts = GNUNET_malloc (mc->num_oldcoins *
+                             sizeof (struct TALER_EXCHANGEDB_RefreshMelt));
+  for (i=0;i<mc->num_oldcoins;i++)
+    if (GNUNET_OK !=
+        postgres_get_refresh_melt (cls,
+                                   session,
+                                   session_hash,
+                                   (uint16_t) i,
+                                   &mc->melts[i]))
+      goto cleanup;
+  mc->denom_pubs = GNUNET_malloc (mc->num_newcoins *
+                                  sizeof (struct TALER_DenominationPublicKey));
+  if (GNUNET_OK !=
+      postgres_get_refresh_order (cls,
+                                  session,
+                                  session_hash,
+                                  mc->num_newcoins,
+                                  mc->denom_pubs))
+    goto cleanup;
+  for (cnc_index=0;cnc_index<TALER_CNC_KAPPA;cnc_index++)
+  {
+    mc->commit_coins[cnc_index]
+      = GNUNET_malloc (mc->num_newcoins *
+                       sizeof (struct TALER_EXCHANGEDB_RefreshCommitCoin));
+    if (GNUNET_OK !=
+        postgres_get_refresh_commit_coins (cls,
+                                           session,
+                                           session_hash,
+                                           cnc_index,
+                                           mc->num_newcoins,
+                                           mc->commit_coins[cnc_index]))
+      goto cleanup;
+    mc->commit_links[cnc_index]
+      = GNUNET_malloc (mc->num_oldcoins *
+                       sizeof (struct TALER_RefreshCommitLinkP));
+    if (GNUNET_OK !=
+        postgres_get_refresh_commit_links (cls,
+                                           session,
+                                           session_hash,
+                                           cnc_index,
+                                           mc->num_oldcoins,
+                                           mc->commit_links[cnc_index]))
+      goto cleanup;
+  }
+  return mc;
+
+ cleanup:
+  common_free_melt_commitment (cls, mc);
+  return NULL;
+}
+
+
+/**
+ * Insert signature of a new coin generated during refresh into
+ * the database indexed by the refresh session and the index
+ * of the coin.  This data is later used should an old coin
+ * be used to try to obtain the private keys during "/refresh/link".
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database connection
+ * @param session_hash hash to identify refresh session
+ * @param newcoin_index coin index
+ * @param ev_sig coin signature
+ * @return #GNUNET_OK on success
+ */
+static int
+postgres_insert_refresh_out (void *cls,
+                             struct TALER_EXCHANGEDB_Session *session,
+                             const struct GNUNET_HashCode *session_hash,
+                             uint16_t newcoin_index,
+                             const struct TALER_DenominationSignature *ev_sig)
+{
+  PGresult *result;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (session_hash),
+    GNUNET_PQ_query_param_uint16 (&newcoin_index),
+    GNUNET_PQ_query_param_rsa_signature (ev_sig->rsa_signature),
+    GNUNET_PQ_query_param_end
+  };
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "insert_refresh_out",
+                                   params);
+  if (PGRES_COMMAND_OK != PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  PQclear (result);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Obtain the link data of a coin, that is the encrypted link
+ * information, the denomination keys and the signatures.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database connection
+ * @param session_hash refresh session to get linkage data for
+ * @return all known link data for the session
+ */
+static struct TALER_EXCHANGEDB_LinkDataList *
+postgres_get_link_data_list (void *cls,
+                             struct TALER_EXCHANGEDB_Session *session,
+                             const struct GNUNET_HashCode *session_hash)
+{
+  struct TALER_EXCHANGEDB_LinkDataList *ldl;
+  struct TALER_EXCHANGEDB_LinkDataList *pos;
+  int i;
+  int nrows;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (session_hash),
+    GNUNET_PQ_query_param_end
+  };
+  PGresult *result;
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "get_link",
+                                   params);
+
+  ldl = NULL;
+  if (PGRES_TUPLES_OK != PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return NULL;
+  }
+  nrows = PQntuples (result);
+  if (0 == nrows)
+  {
+    PQclear (result);
+    return NULL;
+  }
+
+  for (i = 0; i < nrows; i++)
+  {
+    struct TALER_RefreshLinkEncrypted *link_enc;
+    struct GNUNET_CRYPTO_rsa_PublicKey *denom_pub;
+    struct GNUNET_CRYPTO_rsa_Signature *sig;
+    void *ld_buf;
+    size_t ld_buf_size;
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_variable_size ("link_vector_enc",
+                                          &ld_buf,
+                                          &ld_buf_size),
+      GNUNET_PQ_result_spec_rsa_signature ("ev_sig",
+                                          &sig),
+      GNUNET_PQ_result_spec_rsa_public_key ("denom_pub",
+                                           &denom_pub),
+      GNUNET_PQ_result_spec_end
+    };
+
+    if (GNUNET_OK !=
+        GNUNET_PQ_extract_result (result, rs, i))
+    {
+      PQclear (result);
+      GNUNET_break (0);
+      common_free_link_data_list (cls,
+                                  ldl);
+      return NULL;
+    }
+    if (ld_buf_size < sizeof (struct GNUNET_CRYPTO_EddsaPrivateKey))
+    {
+      PQclear (result);
+      GNUNET_free (ld_buf);
+      common_free_link_data_list (cls,
+                                  ldl);
+      return NULL;
+    }
+    link_enc = TALER_refresh_link_encrypted_decode (ld_buf,
+                                                    ld_buf_size);
+    GNUNET_free (ld_buf);
+    pos = GNUNET_new (struct TALER_EXCHANGEDB_LinkDataList);
+    pos->next = ldl;
+    pos->link_data_enc = link_enc;
+    pos->denom_pub.rsa_public_key = denom_pub;
+    pos->ev_sig.rsa_signature = sig;
+    ldl = pos;
+  }
+  return ldl;
+}
+
+
+/**
+ * Obtain shared secret and transfer public key from the public key of
+ * the coin.  This information and the link information returned by
+ * #postgres_get_link_data_list() enable the owner of an old coin to
+ * determine the private keys of the new coins after the melt.
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database connection
+ * @param coin_pub public key of the coin
+ * @param tdc function to call for each session the coin was melted into
+ * @param tdc_cls closure for @a tdc
+ * @return #GNUNET_OK on success,
+ *         #GNUNET_NO on failure (not found)
+ *         #GNUNET_SYSERR on internal failure (database issue)
+ */
+static int
+postgres_get_transfer (void *cls,
+                       struct TALER_EXCHANGEDB_Session *session,
+                       const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                       TALER_EXCHANGEDB_TransferDataCallback tdc,
+                       void *tdc_cls)
+{
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (coin_pub),
+    GNUNET_PQ_query_param_end
+  };
+  PGresult *result;
+  int nrows;
+  int i;
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "get_transfer",
+                                   params);
+  if (PGRES_TUPLES_OK !=
+      PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  nrows = PQntuples (result);
+  if (0 == nrows)
+  {
+    /* no matches found */
+    PQclear (result);
+    return GNUNET_NO;
+  }
+  for (i=0;i<nrows;i++)
+  {
+    struct GNUNET_HashCode session_hash;
+    struct TALER_TransferPublicKeyP transfer_pub;
+    struct TALER_EncryptedLinkSecretP shared_secret_enc;
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_auto_from_type ("transfer_pub", &transfer_pub),
+      GNUNET_PQ_result_spec_auto_from_type ("link_secret_enc", &shared_secret_enc),
+      GNUNET_PQ_result_spec_auto_from_type ("session_hash", &session_hash),
+      GNUNET_PQ_result_spec_end
+    };
+
+    if (GNUNET_OK !=
+        GNUNET_PQ_extract_result (result, rs, 0))
+    {
+      PQclear (result);
+      GNUNET_break (0);
+      return GNUNET_SYSERR;
+    }
+    tdc (tdc_cls,
+         &session_hash,
+         &transfer_pub,
+         &shared_secret_enc);
+  }
+  PQclear (result);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Compile a list of all (historic) transactions performed
+ * with the given coin (/refresh/melt and /deposit operations).
+ *
+ * @param cls the `struct PostgresClosure` with the plugin-specific state
+ * @param session database connection
+ * @param coin_pub coin to investigate
+ * @return list of transactions, NULL if coin is fresh
+ */
+static struct TALER_EXCHANGEDB_TransactionList *
+postgres_get_coin_transactions (void *cls,
+                                struct TALER_EXCHANGEDB_Session *session,
+                                const struct TALER_CoinSpendPublicKeyP *coin_pub)
+{
+  struct TALER_EXCHANGEDB_TransactionList *head;
+
+  head = NULL;
+  /* check deposits */
+  {
+    struct GNUNET_PQ_QueryParam params[] = {
+      GNUNET_PQ_query_param_auto_from_type (&coin_pub->eddsa_pub),
+      GNUNET_PQ_query_param_end
+    };
+    int nrows;
+    int i;
+    PGresult *result;
+    struct TALER_EXCHANGEDB_TransactionList *tl;
+
+    result = GNUNET_PQ_exec_prepared (session->conn,
+                                     "get_deposit_with_coin_pub",
+                                     params);
+    if (PGRES_TUPLES_OK != PQresultStatus (result))
+    {
+      QUERY_ERR (result);
+      PQclear (result);
+      goto cleanup;
+    }
+    nrows = PQntuples (result);
+    for (i = 0; i < nrows; i++)
+    {
+      struct TALER_EXCHANGEDB_Deposit *deposit;
+
+      deposit = GNUNET_new (struct TALER_EXCHANGEDB_Deposit);
+      {
+        struct GNUNET_PQ_ResultSpec rs[] = {
+          GNUNET_PQ_result_spec_rsa_public_key ("denom_pub",
+                                               &deposit->coin.denom_pub.rsa_public_key),
+          GNUNET_PQ_result_spec_rsa_signature ("denom_sig",
+                                              &deposit->coin.denom_sig.rsa_signature),
+          GNUNET_PQ_result_spec_uint64 ("transaction_id",
+                                       &deposit->transaction_id),
+          TALER_PQ_result_spec_amount ("amount_with_fee",
+                                       &deposit->amount_with_fee),
+          TALER_PQ_result_spec_amount ("deposit_fee",
+                                       &deposit->deposit_fee),
+          GNUNET_PQ_result_spec_absolute_time ("timestamp",
+                                              &deposit->timestamp),
+          GNUNET_PQ_result_spec_absolute_time ("refund_deadline",
+                                              &deposit->refund_deadline),
+          GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
+                                               &deposit->merchant_pub),
+          GNUNET_PQ_result_spec_auto_from_type ("h_contract",
+                                               &deposit->h_contract),
+          GNUNET_PQ_result_spec_auto_from_type ("h_wire",
+                                               &deposit->h_wire),
+          TALER_PQ_result_spec_json ("wire",
+                                     &deposit->wire),
+          GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
+                                               &deposit->csig),
+          GNUNET_PQ_result_spec_end
+        };
+
+        if (GNUNET_OK !=
+            GNUNET_PQ_extract_result (result, rs, i))
+        {
+          GNUNET_break (0);
+          GNUNET_free (deposit);
+          PQclear (result);
+          goto cleanup;
+        }
+        deposit->coin.coin_pub = *coin_pub;
+      }
+      tl = GNUNET_new (struct TALER_EXCHANGEDB_TransactionList);
+      tl->next = head;
+      tl->type = TALER_EXCHANGEDB_TT_DEPOSIT;
+      tl->details.deposit = deposit;
+      head = tl;
+      continue;
+    }
+    PQclear (result);
+  }
+  /* Handle refreshing */
+  {
+    struct GNUNET_PQ_QueryParam params[] = {
+      GNUNET_PQ_query_param_auto_from_type (&coin_pub->eddsa_pub),
+      GNUNET_PQ_query_param_end
+    };
+    int nrows;
+    int i;
+    PGresult *result;
+    struct TALER_EXCHANGEDB_TransactionList *tl;
+
+    /* check if the melt record exists and get it */
+    result = GNUNET_PQ_exec_prepared (session->conn,
+                                     "get_refresh_melt_by_coin",
+                                     params);
+    if (PGRES_TUPLES_OK != PQresultStatus (result))
+    {
+      BREAK_DB_ERR (result);
+      PQclear (result);
+      goto cleanup;
+    }
+    nrows = PQntuples (result);
+    for (i=0;i<nrows;i++)
+    {
+      struct TALER_EXCHANGEDB_RefreshMelt *melt;
+
+      melt = GNUNET_new (struct TALER_EXCHANGEDB_RefreshMelt);
+      {
+        struct GNUNET_PQ_ResultSpec rs[] = {
+          GNUNET_PQ_result_spec_auto_from_type ("session_hash",
+                                               &melt->session_hash),
+          /* oldcoin_index not needed */
+          GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
+                                               &melt->coin_sig),
+          TALER_PQ_result_spec_amount ("amount_with_fee",
+                                       &melt->amount_with_fee),
+          TALER_PQ_result_spec_amount ("melt_fee",
+                                       &melt->melt_fee),
+          GNUNET_PQ_result_spec_end
+        };
+        if (GNUNET_OK !=
+            GNUNET_PQ_extract_result (result, rs, 0))
+        {
+          GNUNET_break (0);
+          GNUNET_free (melt);
+          PQclear (result);
+          goto cleanup;
+        }
+	melt->coin.coin_pub = *coin_pub;
+      }
+      tl = GNUNET_new (struct TALER_EXCHANGEDB_TransactionList);
+      tl->next = head;
+      tl->type = TALER_EXCHANGEDB_TT_REFRESH_MELT;
+      tl->details.melt = melt;
+      head = tl;
+      continue;
+    }
+    PQclear (result);
+  }
+  return head;
+ cleanup:
+  if (NULL != head)
+    common_free_coin_transaction_list (cls,
+                                       head);
+  return NULL;
+}
+
+
+/**
+ * Lookup the list of Taler transactions that were aggregated
+ * into a wire transfer by the respective @a wtid.
+ *
+ * @param cls closure
+ * @param session database connection
+ * @param wtid the raw wire transfer identifier we used
+ * @param cb function to call on each transaction found
+ * @param cb_cls closure for @a cb
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on database errors,
+ *         #GNUNET_NO if we found no results
+ */
+static int
+postgres_lookup_wire_transfer (void *cls,
+                               struct TALER_EXCHANGEDB_Session *session,
+                               const struct TALER_WireTransferIdentifierRawP *wtid,
+                               TALER_EXCHANGEDB_WireTransferDataCallback cb,
+                               void *cb_cls)
+{
+  PGresult *result;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (wtid),
+    GNUNET_PQ_query_param_end
+  };
+  int nrows;
+  int i;
+
+  /* check if the melt record exists and get it */
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "lookup_transactions",
+                                   params);
+  if (PGRES_TUPLES_OK != PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  nrows = PQntuples (result);
+  if (0 == nrows)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "lookup_wire_transfer() returned 0 matching rows\n");
+    PQclear (result);
+    return GNUNET_NO;
+  }
+  for (i=0;i<nrows;i++)
+  {
+    struct GNUNET_HashCode h_contract;
+    struct GNUNET_HashCode h_wire;
+    struct TALER_CoinSpendPublicKeyP coin_pub;
+    struct TALER_MerchantPublicKeyP merchant_pub;
+    uint64_t transaction_id;
+    struct GNUNET_TIME_Absolute exec_time;
+    struct TALER_Amount coin_amount;
+    struct TALER_Amount coin_fee;
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_auto_from_type ("h_contract", &h_contract),
+      GNUNET_PQ_result_spec_auto_from_type ("h_wire", &h_wire),
+      GNUNET_PQ_result_spec_auto_from_type ("coin_pub", &coin_pub),
+      GNUNET_PQ_result_spec_auto_from_type ("merchant_pub", &merchant_pub),
+      GNUNET_PQ_result_spec_uint64 ("transaction_id", &transaction_id),
+      GNUNET_PQ_result_spec_absolute_time ("execution_time", &exec_time),
+      TALER_PQ_result_spec_amount ("coin_amount", &coin_amount),
+      TALER_PQ_result_spec_amount ("coin_fee", &coin_fee),
+       GNUNET_PQ_result_spec_end
+    };
+    if (GNUNET_OK != GNUNET_PQ_extract_result (result, rs, i))
+    {
+      GNUNET_break (0);
+      PQclear (result);
+      return GNUNET_SYSERR;
+    }
+    cb (cb_cls,
+        &merchant_pub,
+        &h_wire,
+        &h_contract,
+        transaction_id,
+        &coin_pub,
+        &coin_amount,
+        &coin_fee);
+  }
+  PQclear (result);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Try to find the wire transfer details for a deposit operation.
+ * If we did not execute the deposit yet, return when it is supposed
+ * to be executed.
+ *
+ * @param cls closure
+ * @param session database connection
+ * @param h_contract hash of the contract
+ * @param h_wire hash of merchant wire details
+ * @param coin_pub public key of deposited coin
+ * @param merchant_pub merchant public key
+ * @param transaction_id transaction identifier
+ * @param cb function to call with the result
+ * @param cb_cls closure to pass to @a cb
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors,
+ *         #GNUNET_NO if nothing was found
+ */
+static int
+postgres_wire_lookup_deposit_wtid (void *cls,
+                                   struct TALER_EXCHANGEDB_Session *session,
+				   const struct GNUNET_HashCode *h_contract,
+				   const struct GNUNET_HashCode *h_wire,
+				   const struct TALER_CoinSpendPublicKeyP *coin_pub,
+				   const struct TALER_MerchantPublicKeyP *merchant_pub,
+				   uint64_t transaction_id,
+				   TALER_EXCHANGEDB_DepositWtidCallback cb,
+				   void *cb_cls)
+{
+  PGresult *result;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (coin_pub),
+    GNUNET_PQ_query_param_auto_from_type (h_contract),
+    GNUNET_PQ_query_param_auto_from_type (h_wire),
+    GNUNET_PQ_query_param_uint64 (&transaction_id),
+    GNUNET_PQ_query_param_auto_from_type (merchant_pub),
+    GNUNET_PQ_query_param_end
+  };
+  int nrows;
+
+  /* check if the melt record exists and get it */
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "lookup_deposit_wtid",
+                                   params);
+  if (PGRES_TUPLES_OK != PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  nrows = PQntuples (result);
+  if (0 == nrows)
+  {
+    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                "lookup_deposit_wtid returned 0 matching rows\n");
+    PQclear (result);
+
+    /* Check if transaction exists in deposits, so that we just
+       do not have a WTID yet, if so, do call the CB with a NULL wtid
+       and return GNUNET_YES! */
+    {
+      struct GNUNET_PQ_QueryParam params2[] = {
+        GNUNET_PQ_query_param_auto_from_type (coin_pub),
+        GNUNET_PQ_query_param_uint64 (&transaction_id),
+        GNUNET_PQ_query_param_auto_from_type (merchant_pub),
+        GNUNET_PQ_query_param_auto_from_type (h_contract),
+        GNUNET_PQ_query_param_auto_from_type (h_wire),
+        GNUNET_PQ_query_param_end
+      };
+
+      result = GNUNET_PQ_exec_prepared (session->conn,
+                                       "get_deposit_for_wtid",
+                                       params2);
+      if (PGRES_TUPLES_OK != PQresultStatus (result))
+      {
+        BREAK_DB_ERR (result);
+        PQclear (result);
+        return GNUNET_SYSERR;
+      }
+    }
+    nrows = PQntuples (result);
+    if (0 == nrows)
+    {
+      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
+                  "get_deposit_for_wtid returned 0 matching rows\n");
+      PQclear (result);
+      return GNUNET_NO;
+    }
+
+    /* Ok, we're aware of the transaction, but it has not yet been
+       executed */
+    {
+      struct GNUNET_TIME_Absolute exec_time;
+      struct TALER_Amount coin_amount;
+      struct TALER_Amount coin_fee;
+      struct GNUNET_PQ_ResultSpec rs[] = {
+        TALER_PQ_result_spec_amount ("amount_with_fee", &coin_amount),
+        TALER_PQ_result_spec_amount ("deposit_fee", &coin_fee),
+        GNUNET_PQ_result_spec_absolute_time ("wire_deadline", &exec_time),
+        GNUNET_PQ_result_spec_end
+      };
+
+      if (GNUNET_OK != GNUNET_PQ_extract_result (result, rs, 0))
+      {
+        GNUNET_break (0);
+        PQclear (result);
+        return GNUNET_SYSERR;
+      }
+      cb (cb_cls,
+          NULL,
+          &coin_amount,
+          &coin_fee,
+          exec_time);
+      PQclear (result);
+      return GNUNET_YES;
+    }
+  }
+  if (1 != nrows)
+  {
+    GNUNET_break (0);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  {
+    struct TALER_WireTransferIdentifierRawP wtid;
+    struct GNUNET_TIME_Absolute exec_time;
+    struct TALER_Amount coin_amount;
+    struct TALER_Amount coin_fee;
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_auto_from_type ("wtid_raw", &wtid),
+      GNUNET_PQ_result_spec_absolute_time ("execution_time", &exec_time),
+      TALER_PQ_result_spec_amount ("coin_amount", &coin_amount),
+      TALER_PQ_result_spec_amount ("coin_fee", &coin_fee),
+      GNUNET_PQ_result_spec_end
+    };
+    if (GNUNET_OK != GNUNET_PQ_extract_result (result, rs, 0))
+    {
+      GNUNET_break (0);
+      PQclear (result);
+      return GNUNET_SYSERR;
+    }
+    cb (cb_cls,
+        &wtid,
+        &coin_amount,
+        &coin_fee,
+        exec_time);
+  }
+  PQclear (result);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Function called to insert aggregation information into the DB.
+ *
+ * @param cls closure
+ * @param session database connection
+ * @param wtid the raw wire transfer identifier we used
+ * @param merchant_pub public key of the merchant (should be same for all callbacks with the same @e cls)
+ * @param h_wire hash of wire transfer details of the merchant (should be same for all callbacks with the same @e cls)
+ * @param h_contract which contract was this payment about
+ * @param transaction_id merchant's transaction ID for the payment
+ * @param coin_pub which public key was this payment about
+ * @param coin_value amount contributed by this coin in total
+ * @param coin_fee deposit fee charged by exchange for this coin
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors
+ */
+static int
+postgres_insert_aggregation_tracking (void *cls,
+                                      struct TALER_EXCHANGEDB_Session *session,
+                                      const struct TALER_WireTransferIdentifierRawP *wtid,
+                                      const struct TALER_MerchantPublicKeyP *merchant_pub,
+                                      const struct GNUNET_HashCode *h_wire,
+                                      const struct GNUNET_HashCode *h_contract,
+                                      uint64_t transaction_id,
+                                      struct GNUNET_TIME_Absolute execution_time,
+                                      const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                                      const struct TALER_Amount *coin_value,
+                                      const struct TALER_Amount *coin_fee)
+{
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_auto_from_type (h_contract),
+    GNUNET_PQ_query_param_auto_from_type (h_wire),
+    GNUNET_PQ_query_param_auto_from_type (coin_pub),
+    GNUNET_PQ_query_param_auto_from_type (merchant_pub),
+    GNUNET_PQ_query_param_uint64 (&transaction_id),
+    GNUNET_PQ_query_param_auto_from_type (wtid),
+    GNUNET_PQ_query_param_absolute_time (&execution_time),
+    TALER_PQ_query_param_amount (coin_value),
+    TALER_PQ_query_param_amount (coin_fee),
+    GNUNET_PQ_query_param_end
+  };
+  PGresult *result;
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "insert_aggregation_tracking",
+                                   params);
+  if (PGRES_COMMAND_OK != PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  if (0 != strcmp ("1", PQcmdTuples (result)))
+  {
+    GNUNET_break (0);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  PQclear (result);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Function called to insert wire transfer commit data into the DB.
+ *
+ * @param cls closure
+ * @param session database connection
+ * @param type type of the wire transfer (i.e. "sepa")
+ * @param buf buffer with wire transfer preparation data
+ * @param buf_size number of bytes in @a buf
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors
+ */
+static int
+postgres_wire_prepare_data_insert (void *cls,
+                                   struct TALER_EXCHANGEDB_Session *session,
+                                   const char *type,
+                                   const char *buf,
+                                   size_t buf_size)
+{
+  PGresult *result;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_fixed_size (type, strlen (type) + 1),
+    GNUNET_PQ_query_param_fixed_size (buf, buf_size),
+    GNUNET_PQ_query_param_end
+  };
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "wire_prepare_data_insert",
+                                   params);
+  if (PGRES_COMMAND_OK != PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  PQclear (result);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Function called to mark wire transfer commit data as finished.
+ *
+ * @param cls closure
+ * @param session database connection
+ * @param rowid which entry to mark as finished
+ * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors
+ */
+static int
+postgres_wire_prepare_data_mark_finished (void *cls,
+                                          struct TALER_EXCHANGEDB_Session *session,
+                                          unsigned long long rowid)
+{
+  uint64_t serial_id = rowid;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_uint64 (&serial_id),
+    GNUNET_PQ_query_param_end
+  };
+  PGresult *result;
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "wire_prepare_data_mark_done",
+                                   params);
+  if (PGRES_COMMAND_OK !=
+      PQresultStatus (result))
+  {
+    BREAK_DB_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  PQclear (result);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Function called to get an unfinished wire transfer
+ * preparation data. Fetches at most one item.
+ *
+ * @param cls closure
+ * @param session database connection
+ * @param type type fo the wire transfer (i.e. "sepa")
+ * @param cb function to call for ONE unfinished item
+ * @param cb_cls closure for @a cb
+ * @return #GNUNET_OK on success,
+ *         #GNUNET_NO if there are no entries,
+ *         #GNUNET_SYSERR on DB errors
+ */
+static int
+postgres_wire_prepare_data_get (void *cls,
+                                struct TALER_EXCHANGEDB_Session *session,
+                                const char *type,
+                                TALER_EXCHANGEDB_WirePreparationCallback cb,
+                                void *cb_cls)
+{
+  PGresult *result;
+  struct GNUNET_PQ_QueryParam params[] = {
+    GNUNET_PQ_query_param_fixed_size (type, strlen (type) + 1),
+    GNUNET_PQ_query_param_end
+  };
+
+  result = GNUNET_PQ_exec_prepared (session->conn,
+                                   "wire_prepare_data_get",
+                                   params);
+  if (PGRES_TUPLES_OK != PQresultStatus (result))
+  {
+    QUERY_ERR (result);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+  if (0 == PQntuples (result))
+  {
+    PQclear (result);
+    return GNUNET_NO;
+  }
+  if (1 != PQntuples (result))
+  {
+    GNUNET_break (0);
+    PQclear (result);
+    return GNUNET_SYSERR;
+  }
+
+  {
+    uint64_t serial_id;
+    void *buf = NULL;
+    size_t buf_size;
+    struct GNUNET_PQ_ResultSpec rs[] = {
+      GNUNET_PQ_result_spec_uint64 ("serial_id",
+                                   &serial_id),
+      GNUNET_PQ_result_spec_variable_size ("buf",
+                                          &buf,
+                                          &buf_size),
+      GNUNET_PQ_result_spec_end
+    };
+
+    if (GNUNET_OK !=
+        GNUNET_PQ_extract_result (result,
+                                 rs,
+                                 0))
+    {
+      GNUNET_break (0);
+      PQclear (result);
+      return GNUNET_SYSERR;
+    }
+    cb (cb_cls,
+        serial_id,
+        buf,
+        buf_size);
+    GNUNET_PQ_cleanup_result (rs);
+  }
+  PQclear (result);
+  return GNUNET_OK;
+}
+
+
+/**
+ * Initialize Postgres database subsystem.
+ *
+ * @param cls a configuration instance
+ * @return NULL on error, otherwise a `struct TALER_EXCHANGEDB_Plugin`
+ */
+void *
+libtaler_plugin_exchangedb_postgres_init (void *cls)
+{
+  struct GNUNET_CONFIGURATION_Handle *cfg = cls;
+  struct PostgresClosure *pg;
+  struct TALER_EXCHANGEDB_Plugin *plugin;
+
+  pg = GNUNET_new (struct PostgresClosure);
+
+  if (0 != pthread_key_create (&pg->db_conn_threadlocal,
+                               &db_conn_destroy))
+  {
+    TALER_LOG_ERROR ("Cannnot create pthread key.\n");
+    GNUNET_free (pg);
+    return NULL;
+  }
+  if (GNUNET_OK !=
+      GNUNET_CONFIGURATION_get_value_string (cfg,
+                                             "exchangedb-postgres",
+                                             "db_conn_str",
+                                             &pg->connection_cfg_str))
+  {
+    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
+                               "exchangedb-postgres",
+                               "db_conn_str");
+    GNUNET_free (pg);
+    return NULL;
+  }
+  plugin = GNUNET_new (struct TALER_EXCHANGEDB_Plugin);
+  plugin->cls = pg;
+  plugin->get_session = &postgres_get_session;
+  plugin->drop_temporary = &postgres_drop_temporary;
+  plugin->create_tables = &postgres_create_tables;
+  plugin->start = &postgres_start;
+  plugin->commit = &postgres_commit;
+  plugin->rollback = &postgres_rollback;
+  plugin->insert_denomination_info = &postgres_insert_denomination_info;
+  plugin->get_denomination_info = &postgres_get_denomination_info;
+  plugin->reserve_get = &postgres_reserve_get;
+  plugin->reserves_in_insert = &postgres_reserves_in_insert;
+  plugin->get_withdraw_info = &postgres_get_withdraw_info;
+  plugin->insert_withdraw_info = &postgres_insert_withdraw_info;
+  plugin->get_reserve_history = &postgres_get_reserve_history;
+  plugin->free_reserve_history = &common_free_reserve_history;
+  plugin->have_deposit = &postgres_have_deposit;
+  plugin->mark_deposit_tiny = &postgres_mark_deposit_tiny;
+  plugin->mark_deposit_done = &postgres_mark_deposit_done;
+  plugin->get_ready_deposit = &postgres_get_ready_deposit;
+  plugin->iterate_matching_deposits = &postgres_iterate_matching_deposits;
+  plugin->insert_deposit = &postgres_insert_deposit;
+  plugin->get_refresh_session = &postgres_get_refresh_session;
+  plugin->create_refresh_session = &postgres_create_refresh_session;
+  plugin->insert_refresh_melt = &postgres_insert_refresh_melt;
+  plugin->get_refresh_melt = &postgres_get_refresh_melt;
+  plugin->insert_refresh_order = &postgres_insert_refresh_order;
+  plugin->get_refresh_order = &postgres_get_refresh_order;
+  plugin->insert_refresh_commit_coins = &postgres_insert_refresh_commit_coins;
+  plugin->get_refresh_commit_coins = &postgres_get_refresh_commit_coins;
+  plugin->insert_refresh_commit_links = &postgres_insert_refresh_commit_links;
+  plugin->get_refresh_commit_links = &postgres_get_refresh_commit_links;
+  plugin->get_melt_commitment = &postgres_get_melt_commitment;
+  plugin->free_melt_commitment = &common_free_melt_commitment;
+  plugin->insert_refresh_out = &postgres_insert_refresh_out;
+  plugin->get_link_data_list = &postgres_get_link_data_list;
+  plugin->free_link_data_list = &common_free_link_data_list;
+  plugin->get_transfer = &postgres_get_transfer;
+  plugin->get_coin_transactions = &postgres_get_coin_transactions;
+  plugin->free_coin_transaction_list = &common_free_coin_transaction_list;
+  plugin->lookup_wire_transfer = &postgres_lookup_wire_transfer;
+  plugin->wire_lookup_deposit_wtid = &postgres_wire_lookup_deposit_wtid;
+  plugin->insert_aggregation_tracking = &postgres_insert_aggregation_tracking;
+  plugin->wire_prepare_data_insert = &postgres_wire_prepare_data_insert;
+  plugin->wire_prepare_data_mark_finished = &postgres_wire_prepare_data_mark_finished;
+  plugin->wire_prepare_data_get = &postgres_wire_prepare_data_get;
+  return plugin;
+}
+
+
+/**
+ * Shutdown Postgres database subsystem.
+ *
+ * @param cls a `struct TALER_EXCHANGEDB_Plugin`
+ * @return NULL (always)
+ */
+void *
+libtaler_plugin_exchangedb_postgres_done (void *cls)
+{
+  struct TALER_EXCHANGEDB_Plugin *plugin = cls;
+  struct PostgresClosure *pg = plugin->cls;
+
+  GNUNET_free (pg->connection_cfg_str);
+  GNUNET_free (pg);
+  GNUNET_free (plugin);
+  return NULL;
+}
+
+/* end of plugin_exchangedb_postgres.c */
diff --git a/src/exchangedb/test-exchange-db-postgres.conf b/src/exchangedb/test-exchange-db-postgres.conf
new file mode 100644
index 000000000..0822bab44
--- /dev/null
+++ b/src/exchangedb/test-exchange-db-postgres.conf
@@ -0,0 +1,8 @@
+[exchange]
+#The DB plugin to use
+DB = postgres
+
+[exchangedb-postgres]
+
+#The connection string the plugin has to use for connecting to the database
+DB_CONN_STR = postgres:///talercheck
diff --git a/src/exchangedb/test_exchangedb.c b/src/exchangedb/test_exchangedb.c
new file mode 100644
index 000000000..df1adf561
--- /dev/null
+++ b/src/exchangedb/test_exchangedb.c
@@ -0,0 +1,907 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchangedb/test_exchangedb.c
+ * @brief test cases for DB interaction functions
+ * @author Sree Harsha Totakura <sreeharsha@totakura.in>
+ */
+#include "platform.h"
+#include "taler_exchangedb_lib.h"
+#include "taler_exchangedb_plugin.h"
+
+static int result;
+
+#define FAILIF(cond)                              \
+  do {                                          \
+    if (!(cond)){ break;}                      \
+    GNUNET_break (0);                           \
+    goto drop;                                  \
+  } while (0)
+
+
+#define RND_BLK(ptr)                                                    \
+  GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK, ptr, sizeof (*ptr))
+
+#define ZR_BLK(ptr) \
+  memset (ptr, 0, sizeof (*ptr))
+
+
+#define CURRENCY "EUR"
+
+static struct TALER_EXCHANGEDB_Plugin *plugin;
+
+/**
+ * Checks if the given reserve has the given amount of balance and expiry
+ *
+ * @param session the database connection
+ * @param pub the public key of the reserve
+ * @param value balance value
+ * @param fraction balance fraction
+ * @param currency currency of the reserve
+ * @return #GNUNET_OK if the given reserve has the same balance and expiration
+ *           as the given parameters; #GNUNET_SYSERR if not
+ */
+static int
+check_reserve (struct TALER_EXCHANGEDB_Session *session,
+               const struct TALER_ReservePublicKeyP *pub,
+               uint64_t value,
+               uint32_t fraction,
+               const char *currency)
+{
+  struct TALER_EXCHANGEDB_Reserve reserve;
+
+  reserve.pub = *pub;
+
+  FAILIF (GNUNET_OK !=
+          plugin->reserve_get (plugin->cls,
+                               session,
+                               &reserve));
+  FAILIF (value != reserve.balance.value);
+  FAILIF (fraction != reserve.balance.fraction);
+  FAILIF (0 != strcmp (currency, reserve.balance.currency));
+
+  return GNUNET_OK;
+ drop:
+  return GNUNET_SYSERR;
+}
+
+
+struct DenomKeyPair
+{
+  struct TALER_DenominationPrivateKey priv;
+  struct TALER_DenominationPublicKey pub;
+};
+
+
+/**
+ * Destroy a denomination key pair.  The key is not necessarily removed from the DB.
+ *
+ * @param dkp the keypair to destroy
+ */
+static void
+destroy_denom_key_pair (struct DenomKeyPair *dkp)
+{
+  GNUNET_CRYPTO_rsa_public_key_free (dkp->pub.rsa_public_key);
+  GNUNET_CRYPTO_rsa_private_key_free (dkp->priv.rsa_private_key);
+  GNUNET_free (dkp);
+}
+
+
+/**
+ * Create a denominaiton key pair by registering the denomination in the DB.
+ *
+ * @param size the size of the denomination key
+ * @param session the DB session
+ * @return the denominaiton key pair; NULL upon error
+ */
+static struct DenomKeyPair *
+create_denom_key_pair (unsigned int size,
+                       struct TALER_EXCHANGEDB_Session *session,
+                       const struct TALER_Amount *value,
+                       const struct TALER_Amount *fee_withdraw,
+                       const struct TALER_Amount *fee_deposit,
+                       const struct TALER_Amount *fee_refresh)
+{
+  struct DenomKeyPair *dkp;
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation dki;
+
+  dkp = GNUNET_new (struct DenomKeyPair);
+  dkp->priv.rsa_private_key = GNUNET_CRYPTO_rsa_private_key_create (size);
+  GNUNET_assert (NULL != dkp->priv.rsa_private_key);
+  dkp->pub.rsa_public_key
+    = GNUNET_CRYPTO_rsa_private_key_get_public (dkp->priv.rsa_private_key);
+
+  /* Using memset() as fields like master key and signature
+     are not properly initialized for this test. */
+  memset (&dki,
+          0,
+          sizeof (struct TALER_EXCHANGEDB_DenominationKeyIssueInformation));
+  dki.denom_pub = dkp->pub;
+  dki.issue.properties.start = GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get ());
+  dki.issue.properties.expire_withdraw = GNUNET_TIME_absolute_hton
+      (GNUNET_TIME_absolute_add (GNUNET_TIME_absolute_get (),
+                                 GNUNET_TIME_UNIT_HOURS));
+  dki.issue.properties.expire_spend = GNUNET_TIME_absolute_hton
+      (GNUNET_TIME_absolute_add
+       (GNUNET_TIME_absolute_get (),
+        GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 2)));
+  dki.issue.properties.expire_legal = GNUNET_TIME_absolute_hton
+      (GNUNET_TIME_absolute_add
+       (GNUNET_TIME_absolute_get (),
+        GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 3)));
+  TALER_amount_hton (&dki.issue.properties.value, value);
+  TALER_amount_hton (&dki.issue.properties.fee_withdraw, fee_withdraw);
+  TALER_amount_hton (&dki.issue.properties.fee_deposit, fee_deposit);
+  TALER_amount_hton (&dki.issue.properties.fee_refresh, fee_refresh);
+  GNUNET_CRYPTO_rsa_public_key_hash (dkp->pub.rsa_public_key,
+                                     &dki.issue.properties.denom_hash);
+  if (GNUNET_OK !=
+      plugin->insert_denomination_info (plugin->cls,
+                                        session,
+                                        &dki.denom_pub,
+                                        &dki.issue))
+  {
+    GNUNET_break(0);
+    destroy_denom_key_pair (dkp);
+    return NULL;
+  }
+  return dkp;
+}
+
+static struct TALER_Amount value;
+static struct TALER_Amount fee_withdraw;
+static struct TALER_Amount fee_deposit;
+static struct TALER_Amount fee_refresh;
+static struct TALER_Amount amount_with_fee;
+
+static void
+free_refresh_commit_coins_array(struct TALER_EXCHANGEDB_RefreshCommitCoin
+                                *commit_coins,
+                                unsigned int size)
+{
+  unsigned int cnt;
+  struct TALER_EXCHANGEDB_RefreshCommitCoin *ccoin;
+  struct TALER_RefreshLinkEncrypted *rlink;
+
+  for (cnt = 0; cnt < size; cnt++)
+  {
+    ccoin = &commit_coins[cnt];
+    GNUNET_free_non_null (ccoin->coin_ev);
+    rlink = (struct TALER_RefreshLinkEncrypted *) ccoin->refresh_link;
+    GNUNET_free_non_null (rlink);
+  }
+  GNUNET_free (commit_coins);
+}
+
+#define MELT_NEW_COINS 5
+
+static int
+test_refresh_commit_coins (struct TALER_EXCHANGEDB_Session *session,
+                           struct TALER_EXCHANGEDB_RefreshSession *refresh_session,
+                           const struct GNUNET_HashCode *session_hash)
+{
+  struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coins;
+  struct TALER_EXCHANGEDB_RefreshCommitCoin *ret_commit_coins;
+  struct TALER_EXCHANGEDB_RefreshCommitCoin *a_ccoin;
+  struct TALER_RefreshLinkEncrypted *a_rlink;
+  struct TALER_EXCHANGEDB_RefreshCommitCoin *b_ccoin;
+  struct TALER_RefreshLinkEncrypted *b_rlink;
+  size_t size;
+  unsigned int cnt;
+  uint16_t cnc_index;
+  int ret;
+
+  #define COIN_ENC_MAX_SIZE 512
+  ret = GNUNET_SYSERR;
+  ret_commit_coins = NULL;
+  commit_coins = GNUNET_new_array (MELT_NEW_COINS,
+                                   struct TALER_EXCHANGEDB_RefreshCommitCoin);
+  cnc_index = (uint16_t) GNUNET_CRYPTO_random_u32
+      (GNUNET_CRYPTO_QUALITY_WEAK, GNUNET_MIN (MELT_NEW_COINS, UINT16_MAX));
+  for (cnt=0; cnt < MELT_NEW_COINS; cnt++)
+  {
+    struct TALER_EXCHANGEDB_RefreshCommitCoin *ccoin;
+    struct TALER_RefreshLinkEncrypted *rlink;
+    ccoin = &commit_coins[cnt];
+    size = GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
+                                  COIN_ENC_MAX_SIZE);
+    rlink = GNUNET_malloc (sizeof (struct TALER_RefreshLinkEncrypted) + size);
+    ccoin->refresh_link = rlink;
+    ccoin->coin_ev_size = GNUNET_CRYPTO_random_u64
+        (GNUNET_CRYPTO_QUALITY_WEAK, COIN_ENC_MAX_SIZE);
+    ccoin->coin_ev = GNUNET_malloc (ccoin->coin_ev_size);
+    GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
+                                ccoin->coin_ev,
+                                ccoin->coin_ev_size);
+    rlink->blinding_key_enc_size = size;
+    RND_BLK (&rlink->coin_priv_enc);
+    rlink->blinding_key_enc = (const char *) &rlink[1];
+    GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
+                                (void *)rlink->blinding_key_enc,
+                                rlink->blinding_key_enc_size);
+  }
+  FAILIF (GNUNET_OK !=
+          plugin->insert_refresh_commit_coins (plugin->cls,
+                                               session,
+                                               session_hash,
+                                               cnc_index,
+                                               MELT_NEW_COINS,
+                                               commit_coins));
+  ret_commit_coins = GNUNET_new_array (MELT_NEW_COINS,
+                                       struct TALER_EXCHANGEDB_RefreshCommitCoin);
+  FAILIF (GNUNET_OK !=
+          plugin->get_refresh_commit_coins (plugin->cls,
+                                            session,
+                                            session_hash,
+                                            cnc_index,
+                                            MELT_NEW_COINS,
+                                            ret_commit_coins));
+  /* compare the refresh commit coin arrays */
+  for (cnt = 0; cnt < MELT_NEW_COINS; cnt++)
+  {
+    a_ccoin = &commit_coins[cnt];
+    b_ccoin = &ret_commit_coins[cnt];
+    FAILIF (a_ccoin->coin_ev_size != b_ccoin->coin_ev_size);
+    FAILIF (0 != memcmp (a_ccoin->coin_ev,
+                         a_ccoin->coin_ev,
+                         a_ccoin->coin_ev_size));
+    a_rlink = a_ccoin->refresh_link;
+    b_rlink = b_ccoin->refresh_link;
+    FAILIF (a_rlink->blinding_key_enc_size != b_rlink->blinding_key_enc_size);
+    FAILIF (0 != memcmp (a_rlink->blinding_key_enc,
+                         b_rlink->blinding_key_enc,
+                         a_rlink->blinding_key_enc_size));
+    FAILIF (0 != memcmp (a_rlink->coin_priv_enc,
+                         b_rlink->coin_priv_enc,
+                         sizeof (a_rlink->coin_priv_enc)));
+  }
+  ret = GNUNET_OK;
+
+ drop:
+  if (NULL != ret_commit_coins)
+    free_refresh_commit_coins_array (ret_commit_coins, MELT_NEW_COINS);
+  if (NULL != commit_coins)
+    free_refresh_commit_coins_array (commit_coins, MELT_NEW_COINS);
+  return ret;
+}
+
+/**
+ * Function to test melting of coins as part of a refresh session
+ *
+ * @param session the database session
+ * @param refresh_session the refresh session
+ * @return #GNUNET_OK if everything went well; #GNUNET_SYSERR if not
+ */
+static int
+test_melting (struct TALER_EXCHANGEDB_Session *session)
+{
+#define MELT_OLD_COINS 10
+  struct TALER_EXCHANGEDB_RefreshSession refresh_session;
+  struct TALER_EXCHANGEDB_RefreshSession ret_refresh_session;
+  struct GNUNET_HashCode session_hash;
+  struct DenomKeyPair *dkp;
+  struct DenomKeyPair **new_dkp;
+  /* struct TALER_CoinPublicInfo *coins; */
+  struct TALER_EXCHANGEDB_RefreshMelt *melts;
+  struct TALER_DenominationPublicKey *new_denom_pubs;
+  struct TALER_DenominationPublicKey *ret_denom_pubs;
+  unsigned int cnt;
+  int ret;
+
+  ret = GNUNET_SYSERR;
+  RND_BLK (&refresh_session);
+  RND_BLK (&session_hash);
+  melts = NULL;
+  dkp = NULL;
+  new_dkp = NULL;
+  new_denom_pubs = NULL;
+  ret_denom_pubs = NULL;
+  /* create and test a refresh session */
+  refresh_session.num_oldcoins = MELT_OLD_COINS;
+  refresh_session.num_newcoins = 1;
+  refresh_session.noreveal_index = 1;
+  FAILIF (GNUNET_OK != plugin->create_refresh_session (plugin->cls,
+                                                       session,
+                                                       &session_hash,
+                                                       &refresh_session));
+  FAILIF (GNUNET_OK != plugin->get_refresh_session (plugin->cls,
+                                                    session,
+                                                    &session_hash,
+                                                    &ret_refresh_session));
+  FAILIF (0 != memcmp (&ret_refresh_session,
+                       &refresh_session,
+                       sizeof (refresh_session)));
+
+  /* create a denomination (value: 1; fraction: 100) */
+  dkp = create_denom_key_pair (512, session,
+                               &value,
+                               &fee_withdraw,
+                               &fee_deposit,
+                               &fee_refresh);
+  /* create MELT_OLD_COINS number of refresh melts */
+  melts = GNUNET_new_array (MELT_OLD_COINS, struct TALER_EXCHANGEDB_RefreshMelt);
+  for (cnt=0; cnt < MELT_OLD_COINS; cnt++)
+  {
+    RND_BLK (&melts[cnt].coin.coin_pub);
+    melts[cnt].coin.denom_sig.rsa_signature =
+        GNUNET_CRYPTO_rsa_sign (dkp->priv.rsa_private_key,
+                                &melts[cnt].coin.coin_pub,
+                                sizeof (melts[cnt].coin.coin_pub));
+    melts[cnt].coin.denom_pub = dkp->pub;
+    RND_BLK (&melts[cnt].coin_sig);
+    melts[cnt].session_hash = session_hash;
+    melts[cnt].amount_with_fee = amount_with_fee;
+    melts[cnt].melt_fee = fee_refresh;
+    FAILIF (GNUNET_OK != plugin->insert_refresh_melt (plugin->cls,
+                                                      session,
+                                                      cnt,
+                                                      &melts[cnt]));
+  }
+  for (cnt = 0; cnt < MELT_OLD_COINS; cnt++)
+  {
+    struct TALER_EXCHANGEDB_RefreshMelt ret_melt;
+    FAILIF (GNUNET_OK != plugin->get_refresh_melt (plugin->cls,
+                                                   session,
+                                                   &session_hash,
+                                                   cnt,
+                                                   &ret_melt));
+    FAILIF (0 != GNUNET_CRYPTO_rsa_signature_cmp
+            (ret_melt.coin.denom_sig.rsa_signature,
+             melts[cnt].coin.denom_sig.rsa_signature));
+    FAILIF (0 != memcmp (&ret_melt.coin.coin_pub,
+                         &melts[cnt].coin.coin_pub,
+                         sizeof (ret_melt.coin.coin_pub)));
+    FAILIF (0 != GNUNET_CRYPTO_rsa_public_key_cmp
+            (ret_melt.coin.denom_pub.rsa_public_key,
+             melts[cnt].coin.denom_pub.rsa_public_key));
+    FAILIF (0 != memcmp (&ret_melt.coin_sig,
+                         &melts[cnt].coin_sig,
+                         sizeof (ret_melt.coin_sig)));
+    FAILIF (0 != memcmp (&ret_melt.session_hash,
+                         &melts[cnt].session_hash,
+                         sizeof (ret_melt.session_hash)));
+    FAILIF (0 != TALER_amount_cmp (&ret_melt.amount_with_fee,
+                                   &melts[cnt].amount_with_fee));
+    FAILIF (0 != TALER_amount_cmp (&ret_melt.melt_fee,
+                                   &melts[cnt].melt_fee));
+    GNUNET_CRYPTO_rsa_signature_free (ret_melt.coin.denom_sig.rsa_signature);
+    GNUNET_CRYPTO_rsa_public_key_free (ret_melt.coin.denom_pub.rsa_public_key);
+  }
+  new_dkp = GNUNET_new_array (MELT_NEW_COINS, struct DenomKeyPair *);
+  new_denom_pubs = GNUNET_new_array (MELT_NEW_COINS,
+                                     struct TALER_DenominationPublicKey);
+  for (cnt=0; cnt < MELT_NEW_COINS; cnt++)
+  {
+    new_dkp[cnt] = create_denom_key_pair (128, session,
+                                          &value,
+                                          &fee_withdraw,
+                                          &fee_deposit,
+                                          &fee_refresh);
+    new_denom_pubs[cnt]=new_dkp[cnt]->pub;
+  }
+  FAILIF (GNUNET_OK != plugin->insert_refresh_order (plugin->cls,
+                                                       session,
+                                                       &session_hash,
+                                                       MELT_NEW_COINS,
+                                                       new_denom_pubs));
+  ret_denom_pubs = GNUNET_new_array (MELT_NEW_COINS,
+                                     struct TALER_DenominationPublicKey);
+  FAILIF (GNUNET_OK != plugin->get_refresh_order (plugin->cls,
+                                                  session,
+                                                  &session_hash,
+                                                  MELT_NEW_COINS,
+                                                  ret_denom_pubs));
+  for (cnt=0; cnt < MELT_NEW_COINS; cnt++)
+  {
+    FAILIF (0 != GNUNET_CRYPTO_rsa_public_key_cmp
+            (ret_denom_pubs[cnt].rsa_public_key,
+             new_denom_pubs[cnt].rsa_public_key));
+  }
+  FAILIF (GNUNET_OK !=
+          test_refresh_commit_coins (session,
+                                     &refresh_session,
+                                     &session_hash));
+
+  ret = GNUNET_OK;
+
+ drop:
+  if (NULL != dkp)
+    destroy_denom_key_pair (dkp);
+  if (NULL != melts)
+  {
+    for (cnt = 0; cnt < MELT_OLD_COINS; cnt++)
+      GNUNET_CRYPTO_rsa_signature_free (melts[cnt].coin.denom_sig.rsa_signature);
+    GNUNET_free (melts);
+  }
+  for (cnt = 0;
+       (NULL != ret_denom_pubs) && (cnt < MELT_NEW_COINS)
+           && (NULL != ret_denom_pubs[cnt].rsa_public_key);
+       cnt++)
+    GNUNET_CRYPTO_rsa_public_key_free (ret_denom_pubs[cnt].rsa_public_key);
+  GNUNET_free_non_null (ret_denom_pubs);
+  GNUNET_free_non_null (new_denom_pubs);
+  for (cnt = 0;
+       (NULL != new_dkp) && (cnt < MELT_NEW_COINS) && (NULL != new_dkp[cnt]);
+       cnt++)
+    destroy_denom_key_pair (new_dkp[cnt]);
+  GNUNET_free_non_null (new_dkp);
+  return ret;
+}
+
+
+/**
+ * Callback that should never be called.
+ */
+static void
+cb_wt_never (void *cls,
+             const struct TALER_MerchantPublicKeyP *merchant_pub,
+             const struct GNUNET_HashCode *h_wire,
+             const struct GNUNET_HashCode *h_contract,
+             uint64_t transaction_id,
+             const struct TALER_CoinSpendPublicKeyP *coin_pub,
+             const struct TALER_Amount *coin_value,
+             const struct TALER_Amount *coin_fee)
+{
+  GNUNET_assert (0); /* this statement should be unreachable */
+}
+
+
+/**
+ * Callback that should never be called.
+ */
+static void
+cb_wtid_never (void *cls,
+               const struct TALER_WireTransferIdentifierRawP *wtid,
+               const struct TALER_Amount *coin_contribution,
+               const struct TALER_Amount *coin_fee,
+               struct GNUNET_TIME_Absolute execution_time)
+{
+  GNUNET_assert (0);
+}
+
+
+static struct TALER_MerchantPublicKeyP merchant_pub_wt;
+static struct GNUNET_HashCode h_wire_wt;
+static struct GNUNET_HashCode h_contract_wt;
+static uint64_t transaction_id_wt;
+static struct TALER_CoinSpendPublicKeyP coin_pub_wt;
+static struct TALER_Amount coin_value_wt;
+static struct TALER_Amount coin_fee_wt;
+static struct TALER_Amount transfer_value_wt;
+static struct GNUNET_TIME_Absolute execution_time_wt;
+static struct TALER_WireTransferIdentifierRawP wtid_wt;
+
+
+/**
+ * Callback that should be called with the WT data.
+ */
+static void
+cb_wt_check (void *cls,
+             const struct TALER_MerchantPublicKeyP *merchant_pub,
+             const struct GNUNET_HashCode *h_wire,
+             const struct GNUNET_HashCode *h_contract,
+             uint64_t transaction_id,
+             const struct TALER_CoinSpendPublicKeyP *coin_pub,
+             const struct TALER_Amount *coin_value,
+             const struct TALER_Amount *coin_fee)
+{
+  GNUNET_assert (cls == &cb_wt_never);
+  GNUNET_assert (0 == memcmp (merchant_pub,
+                              &merchant_pub_wt,
+                              sizeof (struct TALER_MerchantPublicKeyP)));
+  GNUNET_assert (0 == memcmp (h_wire,
+                              &h_wire_wt,
+                              sizeof (struct GNUNET_HashCode)));
+  GNUNET_assert (0 == memcmp (h_contract,
+                              &h_contract_wt,
+                              sizeof (struct GNUNET_HashCode)));
+  GNUNET_assert (transaction_id == transaction_id_wt);
+  GNUNET_assert (0 == memcmp (coin_pub,
+                              &coin_pub_wt,
+                              sizeof (struct TALER_CoinSpendPublicKeyP)));
+  GNUNET_assert (0 == TALER_amount_cmp (coin_value,
+                                        &coin_value_wt));
+  GNUNET_assert (0 == TALER_amount_cmp (coin_fee,
+                                        &coin_fee_wt));
+}
+
+
+/**
+ * Callback that should be called with the WT data.
+ */
+static void
+cb_wtid_check (void *cls,
+               const struct TALER_WireTransferIdentifierRawP *wtid,
+               const struct TALER_Amount *coin_contribution,
+               const struct TALER_Amount *coin_fee,
+               struct GNUNET_TIME_Absolute execution_time)
+{
+  GNUNET_assert (cls == &cb_wtid_never);
+  GNUNET_assert (0 == memcmp (wtid,
+                              &wtid_wt,
+                              sizeof (struct TALER_WireTransferIdentifierRawP)));
+  GNUNET_assert (execution_time.abs_value_us ==
+                 execution_time_wt.abs_value_us);
+  GNUNET_assert (0 == TALER_amount_cmp (coin_contribution,
+                                        &coin_value_wt));
+  GNUNET_assert (0 == TALER_amount_cmp (coin_fee,
+                                        &coin_fee_wt));
+}
+
+
+/**
+ * Main function that will be run by the scheduler.
+ *
+ * @param cls closure
+ * @param args remaining command-line arguments
+ * @param cfgfile name of the configuration file used (for saving, can be NULL!)
+ * @param cfg configuration
+ */
+static void
+run (void *cls,
+     char *const *args,
+     const char *cfgfile,
+     const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+  struct TALER_EXCHANGEDB_Session *session;
+  struct TALER_ReservePublicKeyP reserve_pub;
+  struct DenomKeyPair *dkp;
+  struct TALER_EXCHANGEDB_CollectableBlindcoin cbc;
+  struct TALER_EXCHANGEDB_CollectableBlindcoin cbc2;
+  struct TALER_EXCHANGEDB_ReserveHistory *rh;
+  struct TALER_EXCHANGEDB_ReserveHistory *rh_head;
+  struct TALER_EXCHANGEDB_BankTransfer *bt;
+  struct TALER_EXCHANGEDB_CollectableBlindcoin *withdraw;
+  struct TALER_EXCHANGEDB_Deposit deposit;
+  struct TALER_EXCHANGEDB_Deposit deposit2;
+  struct TALER_WireTransferIdentifierRawP wtid;
+  json_t *wire;
+  json_t *just;
+  const char * const json_wire_str =
+      "{ \"type\":\"SEPA\", \
+\"IBAN\":\"DE67830654080004822650\",                    \
+\"name\":\"GNUnet e.V.\",                               \
+\"bic\":\"GENODEF1SLR\",                                 \
+\"edate\":\"1449930207000\",                                \
+\"r\":123456789,                                     \
+\"address\": \"foobar\"}";
+  unsigned int cnt;
+
+  dkp = NULL;
+  rh = NULL;
+  wire = NULL;
+  session = NULL;
+  ZR_BLK (&cbc);
+  ZR_BLK (&cbc2);
+  if (NULL ==
+      (plugin = TALER_EXCHANGEDB_plugin_load (cfg)))
+  {
+    result = 1;
+    return;
+  }
+  if (GNUNET_OK !=
+      plugin->create_tables (plugin->cls,
+                             GNUNET_YES))
+  {
+    result = 2;
+    goto drop;
+  }
+  if (NULL ==
+      (session = plugin->get_session (plugin->cls,
+                                      GNUNET_YES)))
+  {
+    result = 3;
+    goto drop;
+  }
+  RND_BLK (&reserve_pub);
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_string_to_amount (CURRENCY ":1.000010",
+                                         &value));
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_string_to_amount (CURRENCY ":0.000010",
+                                         &fee_withdraw));
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_string_to_amount (CURRENCY ":0.000010",
+                                         &fee_deposit));
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_string_to_amount (CURRENCY ":0.000010",
+                                         &fee_refresh));
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_string_to_amount (CURRENCY ":1.000010",
+                                         &amount_with_fee));
+
+  result = 4;
+  just = json_loads ("{ \"justification\":\"1\" }", 0, NULL);
+  FAILIF (GNUNET_OK !=
+          plugin->reserves_in_insert (plugin->cls,
+                                      session,
+                                      &reserve_pub,
+                                      &value,
+                                      GNUNET_TIME_absolute_get (),
+				      just));
+  json_decref (just);
+  FAILIF (GNUNET_OK !=
+          check_reserve (session,
+                         &reserve_pub,
+                         value.value,
+                         value.fraction,
+                         value.currency));
+  just = json_loads ("{ \"justification\":\"2\" }", 0, NULL);
+  FAILIF (GNUNET_OK !=
+          plugin->reserves_in_insert (plugin->cls,
+                                      session,
+                                      &reserve_pub,
+                                      &value,
+                                      GNUNET_TIME_absolute_get (),
+				      just));
+  json_decref (just);
+  FAILIF (GNUNET_OK !=
+          check_reserve (session,
+                         &reserve_pub,
+                         value.value * 2,
+                         value.fraction * 2,
+                         value.currency));
+  dkp = create_denom_key_pair (1024, session,
+                               &value,
+                               &fee_withdraw,
+                               &fee_deposit,
+                               &fee_refresh);
+  RND_BLK(&cbc.h_coin_envelope);
+  RND_BLK(&cbc.reserve_sig);
+  cbc.denom_pub = dkp->pub;
+  cbc.sig.rsa_signature
+    = GNUNET_CRYPTO_rsa_sign (dkp->priv.rsa_private_key,
+                              &cbc.h_coin_envelope,
+                              sizeof (cbc.h_coin_envelope));
+  cbc.reserve_pub = reserve_pub;
+  cbc.amount_with_fee = value;
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_amount_get_zero (CURRENCY, &cbc.withdraw_fee));
+  FAILIF (GNUNET_OK !=
+          plugin->insert_withdraw_info (plugin->cls,
+                                        session,
+                                        &cbc));
+  FAILIF (GNUNET_OK !=
+          check_reserve (session,
+                         &reserve_pub,
+                         value.value,
+                         value.fraction,
+                         value.currency));
+  FAILIF (GNUNET_YES !=
+          plugin->get_withdraw_info (plugin->cls,
+                                     session,
+                                     &cbc.h_coin_envelope,
+                                     &cbc2));
+  FAILIF (NULL == cbc2.denom_pub.rsa_public_key);
+  FAILIF (0 != memcmp (&cbc2.reserve_sig,
+                       &cbc.reserve_sig,
+                       sizeof (cbc2.reserve_sig)));
+  FAILIF (0 != memcmp (&cbc2.reserve_pub,
+                       &cbc.reserve_pub,
+                       sizeof (cbc2.reserve_pub)));
+  FAILIF (GNUNET_OK !=
+          GNUNET_CRYPTO_rsa_verify (&cbc.h_coin_envelope,
+                                    cbc2.sig.rsa_signature,
+                                    dkp->pub.rsa_public_key));
+  rh = plugin->get_reserve_history (plugin->cls,
+                                    session,
+                                    &reserve_pub);
+  FAILIF (NULL == rh);
+  rh_head = rh;
+  for (cnt=0; NULL != rh_head; rh_head=rh_head->next, cnt++)
+  {
+    switch (rh_head->type)
+    {
+    case TALER_EXCHANGEDB_RO_BANK_TO_EXCHANGE:
+      bt = rh_head->details.bank;
+      FAILIF (0 != memcmp (&bt->reserve_pub,
+                           &reserve_pub,
+                           sizeof (reserve_pub)));
+      /* this is the amount we trasferred twice*/
+      FAILIF (1 != bt->amount.value);
+      FAILIF (10 != bt->amount.fraction);
+      FAILIF (0 != strcmp (CURRENCY, bt->amount.currency));
+      FAILIF (NULL == bt->wire);
+      break;
+    case TALER_EXCHANGEDB_RO_WITHDRAW_COIN:
+      withdraw = rh_head->details.withdraw;
+      FAILIF (0 != memcmp (&withdraw->reserve_pub,
+                           &reserve_pub,
+                           sizeof (reserve_pub)));
+      FAILIF (0 != memcmp (&withdraw->h_coin_envelope,
+                           &cbc.h_coin_envelope,
+                           sizeof (cbc.h_coin_envelope)));
+      break;
+    }
+  }
+  FAILIF (3 != cnt);
+  /* Tests for deposits */
+  memset (&deposit, 0, sizeof (deposit));
+  RND_BLK (&deposit.coin.coin_pub);
+  deposit.coin.denom_pub = dkp->pub;
+  deposit.coin.denom_sig = cbc.sig;
+  RND_BLK (&deposit.csig);
+  RND_BLK (&deposit.merchant_pub);
+  RND_BLK (&deposit.h_contract);
+  RND_BLK (&deposit.h_wire);
+  wire = json_loads (json_wire_str, 0, NULL);
+  deposit.wire = wire;
+  deposit.transaction_id =
+      GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK, UINT64_MAX);
+  deposit.amount_with_fee = value;
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_amount_get_zero (CURRENCY, &deposit.deposit_fee));
+  FAILIF (GNUNET_OK !=
+          plugin->insert_deposit (plugin->cls,
+                                  session, &deposit));
+  FAILIF (GNUNET_YES !=
+          plugin->have_deposit (plugin->cls,
+                                session,
+                                &deposit));
+  deposit2 = deposit;
+  deposit2.transaction_id++;     /* should fail if transaction id is different */
+  FAILIF (GNUNET_NO !=
+          plugin->have_deposit (plugin->cls,
+                                session,
+                                &deposit2));
+  deposit2.transaction_id = deposit.transaction_id;
+  RND_BLK (&deposit2.merchant_pub); /* should fail if merchant is different */
+  FAILIF (GNUNET_NO !=
+          plugin->have_deposit (plugin->cls,
+                                session,
+                                &deposit2));
+  deposit2.merchant_pub = deposit.merchant_pub;
+  RND_BLK (&deposit2.coin.coin_pub); /* should fail if coin is different */
+  FAILIF (GNUNET_NO !=
+          plugin->have_deposit (plugin->cls,
+                                session,
+                                &deposit2));
+  FAILIF (GNUNET_OK != test_melting (session));
+
+  /* setup values for wire transfer aggregation data */
+  memset (&wtid, 42, sizeof (wtid));
+  memset (&merchant_pub_wt, 43, sizeof (merchant_pub_wt));
+  memset (&h_wire_wt, 44, sizeof (h_wire_wt));
+  memset (&h_contract_wt, 45, sizeof (h_contract_wt));
+  memset (&coin_pub_wt, 46, sizeof (coin_pub_wt));
+  transaction_id_wt = 47;
+  execution_time_wt = GNUNET_TIME_absolute_get ();
+  memset (&merchant_pub_wt, 48, sizeof (merchant_pub_wt));
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_string_to_amount (CURRENCY "KUDOS:1.000010",
+                                         &coin_value_wt));
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_string_to_amount (CURRENCY "KUDOS:0.000010",
+                                         &coin_fee_wt));
+  GNUNET_assert (GNUNET_OK ==
+                 TALER_string_to_amount (CURRENCY "KUDOS:1.000000",
+                                         &transfer_value_wt));
+
+  FAILIF (GNUNET_NO !=
+          plugin->lookup_wire_transfer (plugin->cls,
+                                        session,
+                                        &wtid_wt,
+                                        &cb_wt_never,
+                                        NULL));
+  FAILIF (GNUNET_NO !=
+          plugin->wire_lookup_deposit_wtid (plugin->cls,
+                                            session,
+                                            &h_contract_wt,
+                                            &h_wire_wt,
+                                            &coin_pub_wt,
+                                            &merchant_pub_wt,
+                                            transaction_id_wt,
+                                            &cb_wtid_never,
+                                            NULL));
+  /* insert WT data */
+  FAILIF (GNUNET_OK !=
+          plugin->insert_aggregation_tracking (plugin->cls,
+                                               session,
+                                               &wtid_wt,
+                                               &merchant_pub_wt,
+                                               &h_wire_wt,
+                                               &h_contract_wt,
+                                               transaction_id_wt,
+                                               execution_time_wt,
+                                               &coin_pub_wt,
+                                               &coin_value_wt,
+                                               &coin_fee_wt));
+  FAILIF (GNUNET_OK !=
+          plugin->lookup_wire_transfer (plugin->cls,
+                                        session,
+                                        &wtid_wt,
+                                        &cb_wt_check,
+                                        &cb_wt_never));
+  FAILIF (GNUNET_OK !=
+          plugin->wire_lookup_deposit_wtid (plugin->cls,
+                                            session,
+                                            &h_contract_wt,
+                                            &h_wire_wt,
+                                            &coin_pub_wt,
+                                            &merchant_pub_wt,
+                                            transaction_id_wt,
+                                            &cb_wtid_check,
+                                            &cb_wtid_never));
+  result = 0;
+
+ drop:
+  if (NULL != wire)
+    json_decref (wire);
+  if (NULL != rh)
+    plugin->free_reserve_history (plugin->cls,
+                                  rh);
+  rh = NULL;
+  if (NULL != session)
+    GNUNET_break (GNUNET_OK ==
+                  plugin->drop_temporary (plugin->cls,
+                                          session));
+  if (NULL != dkp)
+    destroy_denom_key_pair (dkp);
+  if (NULL != cbc.sig.rsa_signature)
+    GNUNET_CRYPTO_rsa_signature_free (cbc.sig.rsa_signature);
+  if (NULL != cbc2.denom_pub.rsa_public_key)
+    GNUNET_CRYPTO_rsa_public_key_free (cbc2.denom_pub.rsa_public_key);
+  if (NULL != cbc2.sig.rsa_signature)
+    GNUNET_CRYPTO_rsa_signature_free (cbc2.sig.rsa_signature);
+  dkp = NULL;
+  TALER_EXCHANGEDB_plugin_unload (plugin);
+  plugin = NULL;
+}
+
+
+int
+main (int argc,
+      char *const argv[])
+{
+   static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+    GNUNET_GETOPT_OPTION_END
+  };
+   char *argv2[] = {
+     "test-exchange-db-<plugin_name>", /* will be replaced later */
+     "-c", "test-exchange-db-<plugin_name>.conf", /* will be replaced later */
+     NULL,
+   };
+   const char *plugin_name;
+   char *config_filename;
+   char *testname;
+
+   result = -1;
+   if (NULL == (plugin_name = strrchr (argv[0], (int) '-')))
+   {
+     GNUNET_break (0);
+     return -1;
+   }
+   plugin_name++;
+   (void) GNUNET_asprintf (&testname,
+                           "test-exchange-db-%s", plugin_name);
+   (void) GNUNET_asprintf (&config_filename,
+                           "%s.conf", testname);
+   argv2[0] = argv[0];
+   argv2[2] = config_filename;
+  if (GNUNET_OK !=
+      GNUNET_PROGRAM_run ((sizeof (argv2)/sizeof (char *)) - 1, argv2,
+                          testname,
+                          "Test cases for exchange database helper functions.",
+                          options, &run, NULL))
+  {
+    GNUNET_free (config_filename);
+    GNUNET_free (testname);
+    return 3;
+  }
+  GNUNET_free (config_filename);
+  GNUNET_free (testname);
+  return result;
+}
diff --git a/src/exchangedb/test_exchangedb_deposits.c b/src/exchangedb/test_exchangedb_deposits.c
new file mode 100644
index 000000000..09c65b2b2
--- /dev/null
+++ b/src/exchangedb/test_exchangedb_deposits.c
@@ -0,0 +1,152 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange/test_exchange_deposits.c
+ * @brief testcase for exchange deposits
+ * @author Sree Harsha Totakura <sreeharsha@totakura.in>
+ */
+#include "platform.h"
+#include <libpq-fe.h>
+#include <gnunet/gnunet_util_lib.h>
+#include "taler_pq_lib.h"
+#include "taler_exchangedb_lib.h"
+#include "taler_exchangedb_plugin.h"
+
+#define EXCHANGE_CURRENCY "EUR"
+
+#define DB_URI "postgres:///taler"
+
+#define break_db_err(result) do { \
+    GNUNET_break(0); \
+    GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Database failure: %s\n", PQresultErrorMessage (result)); \
+  } while (0)
+
+/**
+ * Shorthand for exit jumps.
+ */
+#define EXITIF(cond)                                              \
+  do {                                                            \
+    if (cond) { GNUNET_break (0); goto EXITIF_exit; }             \
+  } while (0)
+
+
+/**
+ * Should we not interact with a temporary table?
+ */
+static int persistent;
+
+/**
+ * Testcase result
+ */
+static int result;
+
+/**
+ * The plugin.
+ */
+static struct TALER_EXCHANGEDB_Plugin *plugin;
+
+/**
+ * Main function that will be run by the scheduler.
+ *
+ * @param cls closure
+ * @param args remaining command-line arguments
+ * @param cfgfile name of the configuration file used (for saving, can be NULL!)
+ * @param cfg configuration
+ */
+static void
+run (void *cls,
+     char *const *args,
+     const char *cfgfile,
+     const struct GNUNET_CONFIGURATION_Handle *cfg)
+{
+  static const char wire[] = "{"
+      "\"type\":\"SEPA\","
+      "\"IBAN\":\"DE67830654080004822650\","
+      "\"NAME\":\"GNUNET E.V\","
+      "\"BIC\":\"GENODEF1SRL\""
+      "}";
+  struct TALER_EXCHANGEDB_Deposit *deposit;
+  uint64_t transaction_id;
+  struct TALER_EXCHANGEDB_Session *session;
+
+  deposit = NULL;
+  EXITIF (NULL == (plugin = TALER_EXCHANGEDB_plugin_load (cfg)));
+  EXITIF (GNUNET_OK !=
+          plugin->create_tables (plugin->cls,
+                                 ! persistent));
+  session = plugin->get_session (plugin->cls,
+                                 ! persistent);
+  EXITIF (NULL == session);
+  deposit = GNUNET_malloc (sizeof (struct TALER_EXCHANGEDB_Deposit) + sizeof (wire));
+  /* Makeup a random coin public key */
+  GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
+                              deposit,
+                              sizeof (struct TALER_EXCHANGEDB_Deposit));
+  /* Makeup a random 64bit transaction ID */
+  transaction_id = GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
+                                             UINT64_MAX);
+  deposit->transaction_id = GNUNET_htonll (transaction_id);
+  /* Random amount */
+  deposit->amount_with_fee.value =
+      htonl (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX));
+  deposit->amount_with_fee.fraction =
+      htonl (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX));
+  GNUNET_assert (strlen (EXCHANGE_CURRENCY) < sizeof (deposit->amount_with_fee.currency));
+  strcpy (deposit->amount_with_fee.currency, EXCHANGE_CURRENCY);
+  /* Copy wireformat */
+  deposit->wire = json_loads (wire, 0, NULL);
+  EXITIF (GNUNET_OK !=
+          plugin->insert_deposit (plugin->cls,
+                                  session,
+                                  deposit));
+  EXITIF (GNUNET_OK !=
+          plugin->have_deposit (plugin->cls,
+                                session,
+                                deposit));
+  result = GNUNET_OK;
+
+ EXITIF_exit:
+  GNUNET_free_non_null (deposit);
+  if (NULL != plugin)
+  {
+    TALER_EXCHANGEDB_plugin_unload (plugin);
+    plugin = NULL;
+  }
+}
+
+
+int
+main (int argc,
+      char *const argv[])
+{
+  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
+    {'T', "persist", NULL,
+     gettext_noop ("Use a persistent database table instead of a temporary one"),
+     GNUNET_NO, &GNUNET_GETOPT_set_one, &persistent},
+    GNUNET_GETOPT_OPTION_END
+  };
+
+
+  persistent = GNUNET_NO;
+  result = GNUNET_SYSERR;
+  if (GNUNET_OK !=
+      GNUNET_PROGRAM_run (argc, argv,
+                          "test-exchange-deposits",
+                          "testcase for exchange deposits",
+                          options, &run, NULL))
+    return 3;
+  return (GNUNET_OK == result) ? 0 : 1;
+}
diff --git a/src/exchangedb/test_exchangedb_keyio.c b/src/exchangedb/test_exchangedb_keyio.c
new file mode 100644
index 000000000..2485da8ae
--- /dev/null
+++ b/src/exchangedb/test_exchangedb_keyio.c
@@ -0,0 +1,85 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014 GNUnet e. V. (and other contributing authors)
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file exchange/test_exchange_common.c
+ * @brief test cases for some functions in exchange/exchange_common.c
+ * @author Sree Harsha Totakura <sreeharsha@totakura.in>
+ */
+#include "platform.h"
+#include "gnunet/gnunet_util_lib.h"
+#include "taler_signatures.h"
+#include "taler_exchangedb_lib.h"
+
+#define RSA_KEY_SIZE 1024
+
+
+#define EXITIF(cond)                                              \
+  do {                                                            \
+    if (cond) { GNUNET_break (0); goto EXITIF_exit; }             \
+  } while (0)
+
+
+int
+main (int argc,
+      const char *const argv[])
+{
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation dki;
+  char *enc;
+  size_t enc_size;
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation dki_read;
+  char *enc_read;
+  size_t enc_read_size;
+  char *tmpfile;
+  int ret;
+
+  ret = 1;
+  enc = NULL;
+  enc_read = NULL;
+  tmpfile = NULL;
+  dki.denom_priv.rsa_private_key = NULL;
+  dki_read.denom_priv.rsa_private_key = NULL;
+  GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
+                              &dki.issue.signature,
+                              sizeof (struct TALER_MasterSignatureP));
+  dki.denom_priv.rsa_private_key
+    = GNUNET_CRYPTO_rsa_private_key_create (RSA_KEY_SIZE);
+  enc_size = GNUNET_CRYPTO_rsa_private_key_encode (dki.denom_priv.rsa_private_key,
+                                                   &enc);
+  EXITIF (NULL == (tmpfile = GNUNET_DISK_mktemp ("test_exchange_common")));
+  EXITIF (GNUNET_OK != TALER_EXCHANGEDB_denomination_key_write (tmpfile, &dki));
+  EXITIF (GNUNET_OK != TALER_EXCHANGEDB_denomination_key_read (tmpfile, &dki_read));
+  enc_read_size = GNUNET_CRYPTO_rsa_private_key_encode (dki_read.denom_priv.rsa_private_key,
+                                                        &enc_read);
+  EXITIF (enc_size != enc_read_size);
+  EXITIF (0 != memcmp (enc,
+                       enc_read,
+                       enc_size));
+  ret = 0;
+
+  EXITIF_exit:
+  GNUNET_free_non_null (enc);
+  if (NULL != tmpfile)
+  {
+    (void) unlink (tmpfile);
+    GNUNET_free (tmpfile);
+  }
+  GNUNET_free_non_null (enc_read);
+  if (NULL != dki.denom_priv.rsa_private_key)
+    GNUNET_CRYPTO_rsa_private_key_free (dki.denom_priv.rsa_private_key);
+  if (NULL != dki_read.denom_priv.rsa_private_key)
+    GNUNET_CRYPTO_rsa_private_key_free (dki_read.denom_priv.rsa_private_key);
+  return ret;
+}
diff --git a/src/exchangedb/test_perf_taler_exchangedb.c b/src/exchangedb/test_perf_taler_exchangedb.c
new file mode 100644
index 000000000..a4ec9591d
--- /dev/null
+++ b/src/exchangedb/test_perf_taler_exchangedb.c
@@ -0,0 +1,182 @@
+/*
+   This file is part of TALER
+   Copyright (C) 2014, 2015 GNUnet e.V.
+
+   TALER is free software; you can redistribute it and/or modify it under the
+   terms of the GNU General Public License as published by the Free Software
+   Foundation; either version 3, or (at your option) any later version.
+
+   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License along with
+   TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+   */
+/**
+ * @file exchangedb/test_perf_taler_exchangedb.c
+ * @brief Exchange database performance analysis
+ * @author Nicolas Fournier
+ */
+#include "platform.h"
+#include "perf_taler_exchangedb_interpreter.h"
+#include "perf_taler_exchangedb_init.h"
+
+
+#define NB_DENOMINATION_INIT  2
+#define NB_DENOMINATION_SAVE  2
+
+#define NB_RESERVE_INIT   4
+#define NB_RESERVE_SAVE   1
+
+#define NB_DEPOSIT_INIT   1
+#define NB_DEPOSIT_SAVE   1
+
+#define NB_WITHDRAW_INIT  1
+#define NB_WITHDRAW_SAVE  1
+
+/**
+ * Allocate, copies and free all the data used in the interpreter
+ * Used to check for memory leaks
+ */
+static void
+test_allocate ()
+{
+  struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki, *dki_copy;
+  struct PERF_TALER_EXCHANGEDB_Reserve *reserve, *reserve_copy;
+  struct PERF_TALER_EXCHANGEDB_Coin *coin, *coin_copy;
+  struct TALER_EXCHANGEDB_Deposit *deposit, *deposit_copy;
+
+  dki = PERF_TALER_EXCHANGEDB_denomination_init ();
+  reserve = PERF_TALER_EXCHANGEDB_reserve_init ();
+  coin = PERF_TALER_EXCHANGEDB_coin_init (dki,
+                                      reserve);
+  deposit = PERF_TALER_EXCHANGEDB_deposit_init (coin);
+
+  dki_copy = PERF_TALER_EXCHANGEDB_denomination_copy (dki);
+  reserve_copy = PERF_TALER_EXCHANGEDB_reserve_copy (reserve);
+  coin_copy = PERF_TALER_EXCHANGEDB_coin_copy (coin);
+  deposit_copy = PERF_TALER_EXCHANGEDB_deposit_copy (deposit);
+
+  PERF_TALER_EXCHANGEDB_denomination_free (dki);
+  PERF_TALER_EXCHANGEDB_denomination_free (dki_copy);
+  PERF_TALER_EXCHANGEDB_reserve_free (reserve);
+  PERF_TALER_EXCHANGEDB_reserve_free (reserve_copy);
+  PERF_TALER_EXCHANGEDB_coin_free (coin);
+  PERF_TALER_EXCHANGEDB_coin_free (coin_copy);
+  PERF_TALER_EXCHANGEDB_deposit_free (deposit);
+  PERF_TALER_EXCHANGEDB_deposit_free (deposit_copy);
+}
+
+/**
+ * Runs the performances tests for the exchange database
+ * and logs the results using Gauger
+ */
+int
+main (int argc, char ** argv)
+{
+  int ret = 0;
+  struct PERF_TALER_EXCHANGEDB_Cmd init[] =
+  {
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END ("init")
+  };
+  struct PERF_TALER_EXCHANGEDB_Cmd benchmark[] =
+  {
+    // Denomination used to create coins
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("00 - Start of interpreter"),
+
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("01 - denomination loop",
+                                     NB_DENOMINATION_INIT),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_START_TRANSACTION ("01 - start transaction"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_DENOMINATION ("01 - denomination"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_DENOMINATION ("01 - insert",
+                                                    "01 - denomination"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_COMMIT_TRANSACTION ("01 - commit transaction"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_SAVE_ARRAY ("01 - save denomination",
+                                           "01 - denomination loop",
+                                           "01 - denomination",
+                                           NB_DENOMINATION_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("01 - denomination loop end",
+                                         "01 - denomination loop"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("01 - init denomination complete"),
+    // End of initialization
+    // Reserve initialization
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("02 - init reserve loop",
+                                     NB_RESERVE_INIT),
+
+    PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_RESERVE ("02 - reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_RESERVE ("02 - insert",
+                                               "02 - reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_SAVE_ARRAY ("02 - save reserve",
+                                           "02 - init reserve loop",
+                                           "02 - reserve",
+                                           NB_RESERVE_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("02 - init reserve end loop",
+                                         "02 - init reserve loop"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("02 - reserve init complete"),
+    // End reserve init
+    // Withdrawal initialization
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("03 - init withdraw loop",
+                                     NB_WITHDRAW_INIT),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_START_TRANSACTION ("03 - start transaction"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("03 - denomination load",
+                                           "03 - init withdraw loop",
+                                           "01 - save denomination"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("03 - reserve load",
+                                           "03 - init withdraw loop",
+                                           "02 - save reserve"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_WITHDRAW ("03 - withdraw",
+                                                "03 - denomination load",
+                                                "03 - reserve load"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_WITHDRAW ("03 - insert withdraw",
+                                                "03 - withdraw"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_COMMIT_TRANSACTION ("03 - commit transaction"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_SAVE_ARRAY ("03 - coin array",
+                                           "03 - init withdraw loop",
+                                           "03 - withdraw",
+                                           NB_WITHDRAW_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("03 - withdraw init end loop",
+                                         "03 - init withdraw loop"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("03 - withdraw init complete"),
+    //End of withdrawal initialization
+    //Deposit initialization
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("04 - time start"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOOP ("04 - deposit init loop",
+                                     NB_DEPOSIT_INIT),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_START_TRANSACTION ("04 - start transaction"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_LOAD_ARRAY ("04 - coin load",
+                                           "04 - deposit init loop",
+                                           "03 - coin array"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_CREATE_DEPOSIT ("04 - deposit",
+                                               "04 - coin load"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_INSERT_DEPOSIT ("04 - insert deposit",
+                                               "04 - deposit"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_COMMIT_TRANSACTION ("04 - commit transaction"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_SAVE_ARRAY ("04 - deposit array",
+                                           "04 - deposit init loop",
+                                           "04 - deposit",
+                                           NB_DEPOSIT_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END_LOOP ("04 - deposit init loop end",
+                                         "04 - deposit init loop"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GET_TIME ("04 - time stop"),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_GAUGER ("04 - gauger",
+                                       "04 - time start",
+                                       "04 - time stop",
+                                       "TEST",
+                                       "time to insert a deposit",
+                                       "deposit/sec",
+                                       NB_DEPOSIT_SAVE),
+    PERF_TALER_EXCHANGEDB_INIT_CMD_DEBUG ("04 - deposit init complete"),
+    // End of deposit initialization
+    PERF_TALER_EXCHANGEDB_INIT_CMD_END ("end"),
+  };
+  
+  test_allocate ();
+  ret = PERF_TALER_EXCHANGEDB_run_benchmark ("test-perf-taler-exchangedb",
+                                         "./test-exchange-db-postgres.conf",
+                                         init,
+                                         benchmark);
+  if (GNUNET_SYSERR == ret)
+    return 1;
+  return 0;
+}
diff --git a/src/include/Makefile.am b/src/include/Makefile.am
index 4d7ae3cb2..6f7f53acb 100644
--- a/src/include/Makefile.am
+++ b/src/include/Makefile.am
@@ -16,9 +16,9 @@ talerinclude_HEADERS = \
   taler_crypto_lib.h \
   taler_json_lib.h \
   taler_util.h \
-  taler_mint_service.h \
-  taler_mintdb_lib.h \
-  taler_mintdb_plugin.h \
+  taler_exchange_service.h \
+  taler_exchangedb_lib.h \
+  taler_exchangedb_plugin.h \
   taler_pq_lib.h \
   taler_signatures.h \
   taler_wire_lib.h \
diff --git a/src/include/taler_crypto_lib.h b/src/include/taler_crypto_lib.h
index 6056270fa..e948fa28a 100644
--- a/src/include/taler_crypto_lib.h
+++ b/src/include/taler_crypto_lib.h
@@ -140,23 +140,23 @@ struct TALER_TransferPrivateKeyP
 
 
 /**
- * @brief Type of online public keys used by the mint to sign
+ * @brief Type of online public keys used by the exchange to sign
  * messages.
  */
-struct TALER_MintPublicKeyP
+struct TALER_ExchangePublicKeyP
 {
   /**
-   * Taler uses EdDSA for online mint message signing.
+   * Taler uses EdDSA for online exchange message signing.
    */
   struct GNUNET_CRYPTO_EddsaPublicKey eddsa_pub;
 };
 
 
 /**
- * @brief Type of online public keys used by the mint to
+ * @brief Type of online public keys used by the exchange to
  * sign messages.
  */
-struct TALER_MintPrivateKeyP
+struct TALER_ExchangePrivateKeyP
 {
   /**
    * Taler uses EdDSA for online signatures sessions.
@@ -166,9 +166,9 @@ struct TALER_MintPrivateKeyP
 
 
 /**
- * @brief Type of signatures used by the mint to sign messages online.
+ * @brief Type of signatures used by the exchange to sign messages online.
  */
-struct TALER_MintSignatureP
+struct TALER_ExchangeSignatureP
 {
   /**
    * Taler uses EdDSA for online signatures sessions.
@@ -178,7 +178,7 @@ struct TALER_MintSignatureP
 
 
 /**
- * @brief Type of the offline master public key used by the mint.
+ * @brief Type of the offline master public key used by the exchange.
  */
 struct TALER_MasterPublicKeyP
 {
@@ -214,7 +214,7 @@ struct TALER_AuditorSignatureP
 
 
 /**
- * @brief Type of the offline master public keys used by the mint.
+ * @brief Type of the offline master public keys used by the exchange.
  */
 struct TALER_MasterPrivateKeyP
 {
@@ -226,7 +226,7 @@ struct TALER_MasterPrivateKeyP
 
 
 /**
- * @brief Type of signatures by the offline master public key used by the mint.
+ * @brief Type of signatures by the offline master public key used by the exchange.
  */
 struct TALER_MasterSignatureP
 {
@@ -464,8 +464,8 @@ struct TALER_WireTransferIdentifierRawP
 /**
  * Binary information encoded in Crockford's Base32 in wire transfer
  * subjects of transfers from Taler to a merchant.  The actual value
- * is chosen by the mint and has no particular semantics, other than
- * being unique so that the mint can lookup details about the wire
+ * is chosen by the exchange and has no particular semantics, other than
+ * being unique so that the exchange can lookup details about the wire
  * transfer when needed.
  */
 struct TALER_WireTransferIdentifierP
diff --git a/src/include/taler_exchange_service.h b/src/include/taler_exchange_service.h
new file mode 100644
index 000000000..566dec6f8
--- /dev/null
+++ b/src/include/taler_exchange_service.h
@@ -0,0 +1,1220 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU Affero General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
+
+  You should have received a copy of the GNU Affero General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file include/taler_exchange_service.h
+ * @brief C interface of libtalerexchange, a C library to use exchange's HTTP API
+ * @author Sree Harsha Totakura <sreeharsha@totakura.in>
+ * @author Christian Grothoff
+ */
+#ifndef _TALER_EXCHANGE_SERVICE_H
+#define _TALER_EXCHANGE_SERVICE_H
+
+#include "taler_util.h"
+
+/* ********************* event loop *********************** */
+
+/**
+ * @brief Handle to this library context.  This is where the
+ * main event loop logic lives.
+ */
+struct TALER_EXCHANGE_Context;
+
+
+/**
+ * Initialise a context.  A context should be used for each thread and should
+ * not be shared among multiple threads.
+ *
+ * @return the context, NULL on error (failure to initialize)
+ */
+struct TALER_EXCHANGE_Context *
+TALER_EXCHANGE_init (void);
+
+
+/**
+ * Obtain the information for a select() call to wait until
+ * #TALER_EXCHANGE_perform() is ready again.  Note that calling
+ * any other TALER_EXCHANGE-API may also imply that the library
+ * is again ready for #TALER_EXCHANGE_perform().
+ *
+ * Basically, a client should use this API to prepare for select(),
+ * then block on select(), then call #TALER_EXCHANGE_perform() and then
+ * start again until the work with the context is done.
+ *
+ * This function will NOT zero out the sets and assumes that @a max_fd
+ * and @a timeout are already set to minimal applicable values.  It is
+ * safe to give this API FD-sets and @a max_fd and @a timeout that are
+ * already initialized to some other descriptors that need to go into
+ * the select() call.
+ *
+ * @param ctx context to get the event loop information for
+ * @param read_fd_set will be set for any pending read operations
+ * @param write_fd_set will be set for any pending write operations
+ * @param except_fd_set is here because curl_multi_fdset() has this argument
+ * @param max_fd set to the highest FD included in any set;
+ *        if the existing sets have no FDs in it, the initial
+ *        value should be "-1". (Note that `max_fd + 1` will need
+ *        to be passed to select().)
+ * @param timeout set to the timeout in milliseconds (!); -1 means
+ *        no timeout (NULL, blocking forever is OK), 0 means to
+ *        proceed immediately with #TALER_EXCHANGE_perform().
+ */
+void
+TALER_EXCHANGE_get_select_info (struct TALER_EXCHANGE_Context *ctx,
+                            fd_set *read_fd_set,
+                            fd_set *write_fd_set,
+                            fd_set *except_fd_set,
+                            int *max_fd,
+                            long *timeout);
+
+
+/**
+ * Run the main event loop for the Taler interaction.
+ *
+ * @param ctx the library context
+ */
+void
+TALER_EXCHANGE_perform (struct TALER_EXCHANGE_Context *ctx);
+
+
+/**
+ * Cleanup library initialisation resources.  This function should be called
+ * after using this library to cleanup the resources occupied during library's
+ * initialisation.
+ *
+ * @param ctx the library context
+ */
+void
+TALER_EXCHANGE_fini (struct TALER_EXCHANGE_Context *ctx);
+
+
+/* *********************  /keys *********************** */
+
+
+/**
+ * List of possible options to be passed to
+ * #TALER_EXCHANGE_connect().
+ */
+enum TALER_EXCHANGE_Option
+{
+  /**
+   * Terminator (end of option list).
+   */
+  TALER_EXCHANGE_OPTION_END = 0
+
+};
+
+
+/**
+ * @brief Exchange's signature key
+ */
+struct TALER_EXCHANGE_SigningPublicKey
+{
+  /**
+   * The signing public key
+   */
+  struct TALER_ExchangePublicKeyP key;
+
+  /**
+   * Validity start time
+   */
+  struct GNUNET_TIME_Absolute valid_from;
+
+  /**
+   * Validity expiration time
+   */
+  struct GNUNET_TIME_Absolute valid_until;
+};
+
+
+/**
+ * @brief Public information about a exchange's denomination key
+ */
+struct TALER_EXCHANGE_DenomPublicKey
+{
+  /**
+   * The public key
+   */
+  struct TALER_DenominationPublicKey key;
+
+  /**
+   * The hash of the public key.
+   */
+  struct GNUNET_HashCode h_key;
+
+  /**
+   * Timestamp indicating when the denomination key becomes valid
+   */
+  struct GNUNET_TIME_Absolute valid_from;
+
+  /**
+   * Timestamp indicating when the denomination key can’t be used anymore to
+   * withdraw new coins.
+   */
+  struct GNUNET_TIME_Absolute withdraw_valid_until;
+
+  /**
+   * Timestamp indicating when coins of this denomination become invalid.
+   */
+  struct GNUNET_TIME_Absolute deposit_valid_until;
+
+  /**
+   * When do signatures with this denomination key become invalid?
+   * After this point, these signatures cannot be used in (legal)
+   * disputes anymore, as the Exchange is then allowed to destroy its side
+   * of the evidence.  @e expire_legal is expected to be significantly
+   * larger than @e expire_spend (by a year or more).
+   */
+  struct GNUNET_TIME_Absolute expire_legal;
+
+  /**
+   * The value of this denomination
+   */
+  struct TALER_Amount value;
+
+  /**
+   * The applicable fee for withdrawing a coin of this denomination
+   */
+  struct TALER_Amount fee_withdraw;
+
+  /**
+   * The applicable fee to spend a coin of this denomination
+   */
+  struct TALER_Amount fee_deposit;
+
+  /**
+   *The applicable fee to melt/refresh a coin of this denomination
+   */
+  struct TALER_Amount fee_refresh;
+};
+
+
+/**
+ * @brief Information we get from the exchange about auditors.
+ */
+struct TALER_EXCHANGE_AuditorInformation
+{
+  /**
+   * Public key of the auditing institution.
+   */
+  struct TALER_AuditorPublicKeyP auditor_pub;
+
+  /**
+   * URL of the auditing institution.  The application must check that
+   * this is an acceptable auditor for its purpose and also verify
+   * that the @a auditor_pub matches the auditor's public key given at
+   * that website.  We expect that in practice software is going to
+   * often ship with an initial list of accepted auditors, just like
+   * browsers ship with a CA root store.
+   *
+   * This field may be NULL. (#3987).
+   */
+  const char *auditor_url;
+
+  /**
+   * Number of denomination keys audited by this auditor.
+   */
+  unsigned int num_denom_keys;
+
+  /**
+   * Array of length @a denom_keys with the denomination
+   * keys audited by this auditor.  Note that the array
+   * elements point to the same locations as the entries
+   * in the key's main `denom_keys` array.
+   */
+  const struct TALER_EXCHANGE_DenomPublicKey **denom_keys;
+};
+
+
+/**
+ * @brief Information about keys from the exchange.
+ */
+struct TALER_EXCHANGE_Keys
+{
+
+  /**
+   * Long-term offline signing key of the exchange.
+   */
+  struct TALER_MasterPublicKeyP master_pub;
+
+  /**
+   * Array of the exchange's online signing keys.
+   */
+  struct TALER_EXCHANGE_SigningPublicKey *sign_keys;
+
+  /**
+   * Array of the exchange's denomination keys.
+   */
+  struct TALER_EXCHANGE_DenomPublicKey *denom_keys;
+
+  /**
+   * Array of the keys of the auditors of the exchange.
+   */
+  struct TALER_EXCHANGE_AuditorInformation *auditors;
+
+  /**
+   * Length of the @e sign_keys array.
+   */
+  unsigned int num_sign_keys;
+
+  /**
+   * Length of the @e denom_keys array.
+   */
+  unsigned int num_denom_keys;
+
+  /**
+   * Length of the @e auditors array.
+   */
+  unsigned int num_auditors;
+
+};
+
+
+/**
+ * Function called with information about who is auditing
+ * a particular exchange and what key the exchange is using.
+ *
+ * @param cls closure
+ * @param keys information about the various keys used
+ *        by the exchange
+ */
+typedef void
+(*TALER_EXCHANGE_CertificationCallback) (void *cls,
+                                     const struct TALER_EXCHANGE_Keys *keys);
+
+
+/**
+ * @brief Handle to the exchange.  This is where we interact with
+ * a particular exchange and keep the per-exchange information.
+ */
+struct TALER_EXCHANGE_Handle;
+
+
+/**
+ * Initialise a connection to the exchange.  Will connect to the
+ * exchange and obtain information about the exchange's master public
+ * key and the exchange's auditor.  The respective information will
+ * be passed to the @a cert_cb once available, and all future
+ * interactions with the exchange will be checked to be signed
+ * (where appropriate) by the respective master key.
+ *
+ * @param ctx the context
+ * @param url HTTP base URL for the exchange
+ * @param cert_cb function to call with the exchange's certification information
+ * @param cert_cb_cls closure for @a cert_cb
+ * @param ... list of additional arguments, terminated by #TALER_EXCHANGE_OPTION_END.
+ * @return the exchange handle; NULL upon error
+ */
+struct TALER_EXCHANGE_Handle *
+TALER_EXCHANGE_connect (struct TALER_EXCHANGE_Context *ctx,
+                    const char *url,
+                    TALER_EXCHANGE_CertificationCallback cert_cb,
+                    void *cert_cb_cls,
+                    ...);
+
+
+/**
+ * Disconnect from the exchange.
+ *
+ * @param exchange the exchange handle
+ */
+void
+TALER_EXCHANGE_disconnect (struct TALER_EXCHANGE_Handle *exchange);
+
+
+/**
+ * Obtain the keys from the exchange.
+ *
+ * @param exchange the exchange handle
+ * @return the exchange's key set
+ */
+const struct TALER_EXCHANGE_Keys *
+TALER_EXCHANGE_get_keys (const struct TALER_EXCHANGE_Handle *exchange);
+
+
+/**
+ * Test if the given @a pub is a the current signing key from the exchange
+ * according to @a keys.
+ *
+ * @param keys the exchange's key set
+ * @param pub claimed current online signing key for the exchange
+ * @return #GNUNET_OK if @a pub is (according to /keys) a current signing key
+ */
+int
+TALER_EXCHANGE_test_signing_key (const struct TALER_EXCHANGE_Keys *keys,
+                             const struct TALER_ExchangePublicKeyP *pub);
+
+
+/**
+ * Obtain the denomination key details from the exchange.
+ *
+ * @param keys the exchange's key set
+ * @param pk public key of the denomination to lookup
+ * @return details about the given denomination key, NULL if the key is not
+ * found
+ */
+const struct TALER_EXCHANGE_DenomPublicKey *
+TALER_EXCHANGE_get_denomination_key (const struct TALER_EXCHANGE_Keys *keys,
+                                 const struct TALER_DenominationPublicKey *pk);
+
+
+/**
+ * Obtain the denomination key details from the exchange.
+ *
+ * @param keys the exchange's key set
+ * @param hc hash of the public key of the denomination to lookup
+ * @return details about the given denomination key
+ */
+const struct TALER_EXCHANGE_DenomPublicKey *
+TALER_EXCHANGE_get_denomination_key_by_hash (const struct TALER_EXCHANGE_Keys *keys,
+                                         const struct GNUNET_HashCode *hc);
+
+
+/* *********************  /wire *********************** */
+
+
+/**
+ * @brief A Wire format inquiry handle
+ */
+struct TALER_EXCHANGE_WireHandle;
+
+
+/**
+ * Callbacks of this type are used to serve the result of submitting a
+ * wire format inquiry request to a exchange.
+ *
+ * The callback is invoked multiple times, once for each supported @a
+ * method.  Finally, it is invoked one more time with cls/0/NULL/NULL
+ * to indicate the end of the iteration.  If any request fails to
+ * generate a valid response from the exchange, @a http_status will also
+ * be zero and the iteration will also end.  Thus, the iteration
+ * always ends with a final call with an @a http_status of 0. If the
+ * @a http_status is already 0 on the first call, then the response to
+ * the /wire request was invalid.  Later, clients can tell the
+ * difference between @a http_status of 0 indicating a failed
+ * /wire/method request and a regular end of the iteration by @a
+ * method being non-NULL.  If the exchange simply correctly asserts that
+ * it does not support any methods, @a method will be NULL but the @a
+ * http_status will be #MHD_HTTP_OK for the first call (followed by a
+ * cls/0/NULL/NULL call to signal the end of the iteration).
+ *
+ * @param cls closure
+ * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful request;
+ *                    0 if the exchange's reply is bogus (fails to follow the protocol)
+ * @param method wire format method supported, i.e. "test" or "sepa", or NULL
+ *            if already the /wire request failed.
+ * @param obj the received JSON reply, if successful this should be the wire
+ *            format details as provided by /wire/METHOD/, or NULL if the
+ *            reply was not in JSON format (in this case, the client might
+ *            want to do an HTTP request to /wire/METHOD/ with a browser to
+ *            provide more information to the user about the @a method).
+ */
+typedef void
+(*TALER_EXCHANGE_WireResultCallback) (void *cls,
+                                  unsigned int http_status,
+                                  const char *method,
+                                  json_t *obj);
+
+
+/**
+ * Obtain information about a exchange's wire instructions.
+ * A exchange may provide wire instructions for creating
+ * a reserve.  The wire instructions also indicate
+ * which wire formats merchants may use with the exchange.
+ * This API is typically used by a wallet for wiring
+ * funds, and possibly by a merchant to determine
+ * supported wire formats.
+ *
+ * Note that while we return the (main) response verbatim to the
+ * caller for further processing, we do already verify that the
+ * response is well-formed (i.e. that signatures included in the
+ * response are all valid).  If the exchange's reply is not well-formed,
+ * we return an HTTP status code of zero to @a cb.
+ *
+ * @param exchange the exchange handle; the exchange must be ready to operate
+ * @param wire_cb the callback to call when a reply for this request is available
+ * @param wire_cb_cls closure for the above callback
+ * @return a handle for this request
+ */
+struct TALER_EXCHANGE_WireHandle *
+TALER_EXCHANGE_wire (struct TALER_EXCHANGE_Handle *exchange,
+                 TALER_EXCHANGE_WireResultCallback wire_cb,
+                 void *wire_cb_cls);
+
+
+/**
+ * Cancel a wire information request.  This function cannot be used
+ * on a request handle if a response is already served for it.
+ *
+ * @param wh the wire information request handle
+ */
+void
+TALER_EXCHANGE_wire_cancel (struct TALER_EXCHANGE_WireHandle *wh);
+
+
+/* *********************  /deposit *********************** */
+
+
+/**
+ * @brief A Deposit Handle
+ */
+struct TALER_EXCHANGE_DepositHandle;
+
+
+/**
+ * Callbacks of this type are used to serve the result of submitting a
+ * deposit permission request to a exchange.
+ *
+ * @param cls closure
+ * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful deposit;
+ *                    0 if the exchange's reply is bogus (fails to follow the protocol)
+ * @param obj the received JSON reply, should be kept as proof (and, in case of errors,
+ *            be forwarded to the customer)
+ */
+typedef void
+(*TALER_EXCHANGE_DepositResultCallback) (void *cls,
+                                     unsigned int http_status,
+                                     json_t *obj);
+
+
+/**
+ * Submit a deposit permission to the exchange and get the exchange's
+ * response.  This API is typically used by a merchant.  Note that
+ * while we return the response verbatim to the caller for further
+ * processing, we do already verify that the response is well-formed
+ * (i.e. that signatures included in the response are all valid).  If
+ * the exchange's reply is not well-formed, we return an HTTP status code
+ * of zero to @a cb.
+ *
+ * We also verify that the @a coin_sig is valid for this deposit
+ * request, and that the @a ub_sig is a valid signature for @a
+ * coin_pub.  Also, the @a exchange must be ready to operate (i.e.  have
+ * finished processing the /keys reply).  If either check fails, we do
+ * NOT initiate the transaction with the exchange and instead return NULL.
+ *
+ * @param exchange the exchange handle; the exchange must be ready to operate
+ * @param amount the amount to be deposited
+ * @param wire_deadline execution date, until which the merchant would like the exchange to settle the balance (advisory, the exchange cannot be
+ *        forced to settle in the past or upon very short notice, but of course a well-behaved exchange will limit aggregation based on the advice received)
+ * @param wire_details the merchant’s account details, in a format supported by the exchange
+ * @param h_contract hash of the contact of the merchant with the customer (further details are never disclosed to the exchange)
+ * @param coin_pub coin’s public key
+ * @param denom_pub denomination key with which the coin is signed
+ * @param denom_sig exchange’s unblinded signature of the coin
+ * @param timestamp timestamp when the contract was finalized, must match approximately the current time of the exchange
+ * @param transaction_id transaction id for the transaction between merchant and customer
+ * @param merchant_pub the public key of the merchant (used to identify the merchant for refund requests)
+ * @param refund_deadline date until which the merchant can issue a refund to the customer via the exchange (can be zero if refunds are not allowed)
+ * @param coin_sig the signature made with purpose #TALER_SIGNATURE_WALLET_COIN_DEPOSIT made by the customer with the coin’s private key.
+ * @param cb the callback to call when a reply for this request is available
+ * @param cb_cls closure for the above callback
+ * @return a handle for this request; NULL if the inputs are invalid (i.e.
+ *         signatures fail to verify).  In this case, the callback is not called.
+ */
+struct TALER_EXCHANGE_DepositHandle *
+TALER_EXCHANGE_deposit (struct TALER_EXCHANGE_Handle *exchange,
+                    const struct TALER_Amount *amount,
+                    struct GNUNET_TIME_Absolute wire_deadline,
+                    json_t *wire_details,
+                    const struct GNUNET_HashCode *h_contract,
+                    const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                    const struct TALER_DenominationSignature *denom_sig,
+                    const struct TALER_DenominationPublicKey *denom_pub,
+                    struct GNUNET_TIME_Absolute timestamp,
+                    uint64_t transaction_id,
+                    const struct TALER_MerchantPublicKeyP *merchant_pub,
+                    struct GNUNET_TIME_Absolute refund_deadline,
+                    const struct TALER_CoinSpendSignatureP *coin_sig,
+                    TALER_EXCHANGE_DepositResultCallback cb,
+                    void *cb_cls);
+
+
+/**
+ * Cancel a deposit permission request.  This function cannot be used
+ * on a request handle if a response is already served for it.
+ *
+ * @param deposit the deposit permission request handle
+ */
+void
+TALER_EXCHANGE_deposit_cancel (struct TALER_EXCHANGE_DepositHandle *deposit);
+
+
+/* ********************* /reserve/status *********************** */
+
+
+/**
+ * @brief A /reserve/status Handle
+ */
+struct TALER_EXCHANGE_ReserveStatusHandle;
+
+
+/**
+ * Ways how a reserve's balance may change.
+ */
+enum TALER_EXCHANGE_ReserveTransactionType {
+
+  /**
+   * Deposit into the reserve.
+   */
+  TALER_EXCHANGE_RTT_DEPOSIT,
+
+  /**
+   * Withdrawal from the reserve.
+   */
+  TALER_EXCHANGE_RTT_WITHDRAWAL
+
+};
+
+
+/**
+ * @brief Entry in the reserve's transaction history.
+ */
+struct TALER_EXCHANGE_ReserveHistory
+{
+
+  /**
+   * Type of the transaction.
+   */
+  enum TALER_EXCHANGE_ReserveTransactionType type;
+
+  /**
+   * Amount transferred (in or out).
+   */
+  struct TALER_Amount amount;
+
+  /**
+   * Details depending on @e type.
+   */
+  union {
+
+    /**
+     * Transaction details for the incoming transaction.
+     */
+    json_t *wire_in_details;
+
+    /**
+     * Signature authorizing the withdrawal for outgoing transaction.
+     */
+    json_t *out_authorization_sig;
+
+  } details;
+
+};
+
+
+/**
+ * Callbacks of this type are used to serve the result of submitting a
+ * deposit permission request to a exchange.
+ *
+ * @param cls closure
+ * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
+ *                    0 if the exchange's reply is bogus (fails to follow the protocol)
+ * @param[in] json original response in JSON format (useful only for diagnostics)
+ * @param balance current balance in the reserve, NULL on error
+ * @param history_length number of entries in the transaction history, 0 on error
+ * @param history detailed transaction history, NULL on error
+ */
+typedef void
+(*TALER_EXCHANGE_ReserveStatusResultCallback) (void *cls,
+                                           unsigned int http_status,
+                                           json_t *json,
+                                           const struct TALER_Amount *balance,
+                                           unsigned int history_length,
+                                           const struct TALER_EXCHANGE_ReserveHistory *history);
+
+
+/**
+ * Submit a request to obtain the transaction history of a reserve
+ * from the exchange.  Note that while we return the full response to the
+ * caller for further processing, we do already verify that the
+ * response is well-formed (i.e. that signatures included in the
+ * response are all valid and add up to the balance).  If the exchange's
+ * reply is not well-formed, we return an HTTP status code of zero to
+ * @a cb.
+ *
+ * @param exchange the exchange handle; the exchange must be ready to operate
+ * @param reserve_pub public key of the reserve to inspect
+ * @param cb the callback to call when a reply for this request is available
+ * @param cb_cls closure for the above callback
+ * @return a handle for this request; NULL if the inputs are invalid (i.e.
+ *         signatures fail to verify).  In this case, the callback is not called.
+ */
+struct TALER_EXCHANGE_ReserveStatusHandle *
+TALER_EXCHANGE_reserve_status (struct TALER_EXCHANGE_Handle *exchange,
+                           const struct TALER_ReservePublicKeyP *reserve_pub,
+                           TALER_EXCHANGE_ReserveStatusResultCallback cb,
+                           void *cb_cls);
+
+
+/**
+ * Cancel a withdraw status request.  This function cannot be used
+ * on a request handle if a response is already served for it.
+ *
+ * @param wsh the withdraw status request handle
+ */
+void
+TALER_EXCHANGE_reserve_status_cancel (struct TALER_EXCHANGE_ReserveStatusHandle *wsh);
+
+
+/* ********************* /reserve/withdraw *********************** */
+
+
+/**
+ * @brief A /reserve/withdraw Handle
+ */
+struct TALER_EXCHANGE_ReserveWithdrawHandle;
+
+
+/**
+ * Callbacks of this type are used to serve the result of submitting a
+ * deposit permission request to a exchange.
+ *
+ * @param cls closure
+ * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
+ *                    0 if the exchange's reply is bogus (fails to follow the protocol)
+ * @param sig signature over the coin, NULL on error
+ * @param full_response full response from the exchange (for logging, in case of errors)
+ */
+typedef void
+(*TALER_EXCHANGE_ReserveWithdrawResultCallback) (void *cls,
+                                             unsigned int http_status,
+                                             const struct TALER_DenominationSignature *sig,
+                                             json_t *full_response);
+
+
+/**
+ * Withdraw a coin from the exchange using a /reserve/withdraw request.  This
+ * API is typically used by a wallet.  Note that to ensure that no
+ * money is lost in case of hardware failures, the caller must have
+ * committed (most of) the arguments to disk before calling, and be
+ * ready to repeat the request with the same arguments in case of
+ * failures.
+ *
+ * @param exchange the exchange handle; the exchange must be ready to operate
+ * @param pk kind of coin to create
+ * @param reserve_priv private key of the reserve to withdraw from
+ * @param coin_priv where to store the coin's private key,
+ *        caller must have committed this value to disk before the call (with @a pk)
+ * @param blinding_key where to store the coin's blinding key
+ *        caller must have committed this value to disk before the call (with @a pk)
+ * @param res_cb the callback to call when the final result for this request is available
+ * @param res_cb_cls closure for @a res_cb
+ * @return NULL
+ *         if the inputs are invalid (i.e. denomination key not with this exchange).
+ *         In this case, the callback is not called.
+ */
+struct TALER_EXCHANGE_ReserveWithdrawHandle *
+TALER_EXCHANGE_reserve_withdraw (struct TALER_EXCHANGE_Handle *exchange,
+                             const struct TALER_EXCHANGE_DenomPublicKey *pk,
+                             const struct TALER_ReservePrivateKeyP *reserve_priv,
+                             const struct TALER_CoinSpendPrivateKeyP *coin_priv,
+                             const struct TALER_DenominationBlindingKey *blinding_key,
+                             TALER_EXCHANGE_ReserveWithdrawResultCallback res_cb,
+                             void *res_cb_cls);
+
+
+/**
+ * Cancel a withdraw status request.  This function cannot be used
+ * on a request handle if a response is already served for it.
+ *
+ * @param sign the withdraw sign request handle
+ */
+void
+TALER_EXCHANGE_reserve_withdraw_cancel (struct TALER_EXCHANGE_ReserveWithdrawHandle *sign);
+
+
+/* ********************* /refresh/melt+reveal ***************************** */
+
+
+/**
+ * Melt (partially spent) coins to obtain fresh coins that are
+ * unlinkable to the original coin(s).  Note that melting more
+ * than one coin in a single request will make those coins linkable,
+ * so the safest operation only melts one coin at a time.
+ *
+ * This API is typically used by a wallet.  Note that to ensure that
+ * no money is lost in case of hardware failures, is operation does
+ * not actually initiate the request. Instead, it generates a buffer
+ * which the caller must store before proceeding with the actual call
+ * to #TALER_EXCHANGE_refresh_melt() that will generate the request.
+ *
+ * This function does verify that the given request data is internally
+ * consistent.  However, the @a melts_sigs are only verified if @a
+ * check_sigs is set to #GNUNET_YES, as this may be relatively
+ * expensive and should be redundant.
+ *
+ * Aside from some non-trivial cryptographic operations that might
+ * take a bit of CPU time to complete, this function returns
+ * its result immediately and does not start any asynchronous
+ * processing.  This function is also thread-safe.
+ *
+ * @param num_melts number of coins that are being melted (typically 1)
+ * @param melt_privs array of @a num_melts private keys of the coins to melt
+ * @param melt_amounts array of @a num_melts amounts specifying how much
+ *                     each coin will contribute to the melt (including fee)
+ * @param melt_sigs array of @a num_melts signatures affirming the
+ *                   validity of the public keys corresponding to the
+ *                   @a melt_privs private keys
+ * @param melt_pks array of @a num_melts denomination key information
+ *                   records corresponding to the @a melt_sigs
+ *                   validity of the keys
+ * @param check_sigs verify the validity of the signatures of @a melt_sigs
+ * @param fresh_pks_len length of the @a pks array
+ * @param fresh_pks array of @a pks_len denominations of fresh coins to create
+ * @param[out] res_size set to the size of the return value, or 0 on error
+ * @return NULL
+ *         if the inputs are invalid (i.e. denomination key not with this exchange).
+ *         Otherwise, pointer to a buffer of @a res_size to store persistently
+ *         before proceeding to #TALER_EXCHANGE_refresh_melt().
+ *         Non-null results should be freed using #GNUNET_free().
+ */
+char *
+TALER_EXCHANGE_refresh_prepare (unsigned int num_melts,
+                            const struct TALER_CoinSpendPrivateKeyP *melt_privs,
+                            const struct TALER_Amount *melt_amounts,
+                            const struct TALER_DenominationSignature *melt_sigs,
+                            const struct TALER_EXCHANGE_DenomPublicKey *melt_pks,
+                            int check_sigs,
+                            unsigned int fresh_pks_len,
+                            const struct TALER_EXCHANGE_DenomPublicKey *fresh_pks,
+                            size_t *res_size);
+
+
+/* ********************* /refresh/melt ***************************** */
+
+/**
+ * @brief A /refresh/melt Handle
+ */
+struct TALER_EXCHANGE_RefreshMeltHandle;
+
+
+/**
+ * Callbacks of this type are used to notify the application about the
+ * result of the /refresh/melt stage.  If successful, the @a noreveal_index
+ * should be committed to disk prior to proceeding #TALER_EXCHANGE_refresh_reveal().
+ *
+ * @param cls closure
+ * @param http_status HTTP response code, never #MHD_HTTP_OK (200) as for successful intermediate response this callback is skipped.
+ *                    0 if the exchange's reply is bogus (fails to follow the protocol)
+ * @param noreveal_index choice by the exchange in the cut-and-choose protocol,
+ *                    UINT16_MAX on error
+ * @param full_response full response from the exchange (for logging, in case of errors)
+ */
+typedef void
+(*TALER_EXCHANGE_RefreshMeltCallback) (void *cls,
+                                   unsigned int http_status,
+                                   uint16_t noreveal_index,
+                                   json_t *full_response);
+
+
+/**
+ * Submit a melt request to the exchange and get the exchange's
+ * response.
+ *
+ * This API is typically used by a wallet.  Note that to ensure that
+ * no money is lost in case of hardware failures, the provided
+ * argument should have been constructed using
+ * #TALER_EXCHANGE_refresh_prepare and committed to persistent storage
+ * prior to calling this function.
+ *
+ * @param exchange the exchange handle; the exchange must be ready to operate
+ * @param refresh_data_length size of the @a refresh_data (returned
+ *        in the `res_size` argument from #TALER_EXCHANGE_refresh_prepare())
+ * @param refresh_data the refresh data as returned from
+          #TALER_EXCHANGE_refresh_prepare())
+ * @param melt_cb the callback to call with the result
+ * @param melt_cb_cls closure for @a melt_cb
+ * @return a handle for this request; NULL if the argument was invalid.
+ *         In this case, neither callback will be called.
+ */
+struct TALER_EXCHANGE_RefreshMeltHandle *
+TALER_EXCHANGE_refresh_melt (struct TALER_EXCHANGE_Handle *exchange,
+                         size_t refresh_data_length,
+                         const char *refresh_data,
+                         TALER_EXCHANGE_RefreshMeltCallback melt_cb,
+                         void *melt_cb_cls);
+
+
+/**
+ * Cancel a refresh melt request.  This function cannot be used
+ * on a request handle if the callback was already invoked.
+ *
+ * @param rmh the refresh handle
+ */
+void
+TALER_EXCHANGE_refresh_melt_cancel (struct TALER_EXCHANGE_RefreshMeltHandle *rmh);
+
+
+/* ********************* /refresh/reveal ***************************** */
+
+
+/**
+ * Callbacks of this type are used to return the final result of
+ * submitting a refresh request to a exchange.  If the operation was
+ * successful, this function returns the signatures over the coins
+ * that were remelted.  The @a coin_privs and @a sigs arrays give the
+ * coins in the same order (and should have the same length) in which
+ * the original request specified the respective denomination keys.
+ *
+ * @param cls closure
+ * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
+ *                    0 if the exchange's reply is bogus (fails to follow the protocol)
+ * @param num_coins number of fresh coins created, length of the @a sigs and @a coin_privs arrays, 0 if the operation failed
+ * @param coin_privs array of @a num_coins private keys for the coins that were created, NULL on error
+ * @param sigs array of signature over @a num_coins coins, NULL on error
+ * @param full_response full response from the exchange (for logging, in case of errors)
+ */
+typedef void
+(*TALER_EXCHANGE_RefreshRevealCallback) (void *cls,
+                                     unsigned int http_status,
+
+                                     unsigned int num_coins,
+                                     const struct TALER_CoinSpendPrivateKeyP *coin_privs,
+                                     const struct TALER_DenominationSignature *sigs,
+                                     json_t *full_response);
+
+
+/**
+ * @brief A /refresh/reveal Handle
+ */
+struct TALER_EXCHANGE_RefreshRevealHandle;
+
+
+/**
+ * Submit a /refresh/reval request to the exchange and get the exchange's
+ * response.
+ *
+ * This API is typically used by a wallet.  Note that to ensure that
+ * no money is lost in case of hardware failures, the provided
+ * arguments should have been committed to persistent storage
+ * prior to calling this function.
+ *
+ * @param exchange the exchange handle; the exchange must be ready to operate
+ * @param refresh_data_length size of the @a refresh_data (returned
+ *        in the `res_size` argument from #TALER_EXCHANGE_refresh_prepare())
+ * @param refresh_data the refresh data as returned from
+          #TALER_EXCHANGE_refresh_prepare())
+ * @param noreveal_index response from the exchange to the
+ *        #TALER_EXCHANGE_refresh_melt() invocation
+ * @param reveal_cb the callback to call with the final result of the
+ *        refresh operation
+ * @param reveal_cb_cls closure for the above callback
+ * @return a handle for this request; NULL if the argument was invalid.
+ *         In this case, neither callback will be called.
+ */
+struct TALER_EXCHANGE_RefreshRevealHandle *
+TALER_EXCHANGE_refresh_reveal (struct TALER_EXCHANGE_Handle *exchange,
+                           size_t refresh_data_length,
+                           const char *refresh_data,
+                           uint16_t noreveal_index,
+                           TALER_EXCHANGE_RefreshRevealCallback reveal_cb,
+                           void *reveal_cb_cls);
+
+
+/**
+ * Cancel a refresh reveal request.  This function cannot be used
+ * on a request handle if the callback was already invoked.
+ *
+ * @param rrh the refresh reval handle
+ */
+void
+TALER_EXCHANGE_refresh_reveal_cancel (struct TALER_EXCHANGE_RefreshRevealHandle *rrh);
+
+
+/* ********************* /refresh/link ***************************** */
+
+
+/**
+ * @brief A /refresh/link Handle
+ */
+struct TALER_EXCHANGE_RefreshLinkHandle;
+
+
+/**
+ * Callbacks of this type are used to return the final result of
+ * submitting a /refresh/link request to a exchange.  If the operation was
+ * successful, this function returns the signatures over the coins
+ * that were created when the original coin was melted.
+ *
+ * @param cls closure
+ * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
+ *                    0 if the exchange's reply is bogus (fails to follow the protocol)
+ * @param num_coins number of fresh coins created, length of the @a sigs and @a coin_privs arrays, 0 if the operation failed
+ * @param coin_privs array of @a num_coins private keys for the coins that were created, NULL on error
+ * @param sigs array of signature over @a num_coins coins, NULL on error
+ * @param pubs array of public keys for the @a sigs, NULL on error
+ * @param full_response full response from the exchange (for logging, in case of errors)
+ */
+typedef void
+(*TALER_EXCHANGE_RefreshLinkCallback) (void *cls,
+                                   unsigned int http_status,
+                                   unsigned int num_coins,
+                                   const struct TALER_CoinSpendPrivateKeyP *coin_privs,
+                                   const struct TALER_DenominationSignature *sigs,
+                                   const struct TALER_DenominationPublicKey *pubs,
+                                   json_t *full_response);
+
+
+/**
+ * Submit a link request to the exchange and get the exchange's response.
+ *
+ * This API is typically not used by anyone, it is more a threat
+ * against those trying to receive a funds transfer by abusing the
+ * /refresh protocol.
+ *
+ * @param exchange the exchange handle; the exchange must be ready to operate
+ * @param coin_priv private key to request link data for
+ * @param link_cb the callback to call with the useful result of the
+ *        refresh operation the @a coin_priv was involved in (if any)
+ * @param link_cb_cls closure for @a link_cb
+ * @return a handle for this request
+ */
+struct TALER_EXCHANGE_RefreshLinkHandle *
+TALER_EXCHANGE_refresh_link (struct TALER_EXCHANGE_Handle *exchange,
+                         const struct TALER_CoinSpendPrivateKeyP *coin_priv,
+                         TALER_EXCHANGE_RefreshLinkCallback link_cb,
+                         void *link_cb_cls);
+
+
+/**
+ * Cancel a refresh link request.  This function cannot be used
+ * on a request handle if the callback was already invoked.
+ *
+ * @param rlh the refresh link handle
+ */
+void
+TALER_EXCHANGE_refresh_link_cancel (struct TALER_EXCHANGE_RefreshLinkHandle *rlh);
+
+
+/* ********************* /admin/add/incoming *********************** */
+
+
+/**
+ * @brief A /admin/add/incoming Handle
+ */
+struct TALER_EXCHANGE_AdminAddIncomingHandle;
+
+
+/**
+ * Callbacks of this type are used to serve the result of submitting
+ * information about an incoming transaction to a exchange.
+ *
+ * @param cls closure
+ * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
+ *                    0 if the exchange's reply is bogus (fails to follow the protocol)
+ * @param full_response full response from the exchange (for logging, in case of errors)
+ */
+typedef void
+(*TALER_EXCHANGE_AdminAddIncomingResultCallback) (void *cls,
+                                              unsigned int http_status,
+                                              json_t *full_response);
+
+
+/**
+ * Notify the exchange that we have received an incoming transaction
+ * which fills a reserve.  Note that this API is an administrative
+ * API and thus not accessible to typical exchange clients, but only
+ * to the operators of the exchange.
+ *
+ * @param exchange the exchange handle; the exchange must be ready to operate
+ * @param reserve_pub public key of the reserve
+ * @param amount amount that was deposited
+ * @param execution_date when did we receive the amount
+ * @param wire wire details
+ * @param res_cb the callback to call when the final result for this request is available
+ * @param res_cb_cls closure for the above callback
+ * @return NULL
+ *         if the inputs are invalid (i.e. invalid amount).
+ *         In this case, the callback is not called.
+ */
+struct TALER_EXCHANGE_AdminAddIncomingHandle *
+TALER_EXCHANGE_admin_add_incoming (struct TALER_EXCHANGE_Handle *exchange,
+                               const struct TALER_ReservePublicKeyP *reserve_pub,
+                               const struct TALER_Amount *amount,
+                               struct GNUNET_TIME_Absolute execution_date,
+                               const json_t *wire,
+                               TALER_EXCHANGE_AdminAddIncomingResultCallback res_cb,
+                               void *res_cb_cls);
+
+
+/**
+ * Cancel an add incoming.  This function cannot be used on a request
+ * handle if a response is already served for it.
+ *
+ * @param aai the admin add incoming request handle
+ */
+void
+TALER_EXCHANGE_admin_add_incoming_cancel (struct TALER_EXCHANGE_AdminAddIncomingHandle *aai);
+
+
+/* ********************* /wire/deposits *********************** */
+
+/**
+ * @brief A /wire/deposits Handle
+ */
+struct TALER_EXCHANGE_WireDepositsHandle;
+
+
+/**
+ * Details for one of the /deposit operations that the
+ * exchange combined into a single wire transfer.
+ */
+struct TALER_WireDepositDetails
+{
+  /**
+   * Hash of the contract.
+   */
+  struct GNUNET_HashCode h_contract;
+
+  /**
+   * Which coin was deposited?
+   */
+  struct TALER_CoinSpendPublicKeyP coin_pub;
+
+  /**
+   * Value of the deposit (including fee).
+   */
+  struct TALER_Amount coin_value;
+
+  /**
+   * Fee charged by the exchange for the deposit.
+   */
+  struct TALER_Amount coin_fee;
+
+  /**
+   * Merchant's transaction identifier.
+   */
+  uint64_t transaction_id;
+
+};
+
+
+/**
+ * Function called with detailed wire transfer data, including all
+ * of the coin transactions that were combined into the wire transfer.
+ *
+ * @param cls closure
+ * @param http_status HTTP status code we got, 0 on exchange protocol violation
+ * @param json original json reply (may include signatures, those have then been
+ *        validated already)
+ * @param wtid extracted wire transfer identifier, or NULL if the exchange could
+ *             not provide any (set only if @a http_status is #MHD_HTTP_OK)
+ * @param total_amount total amount of the wire transfer, or NULL if the exchange could
+ *             not provide any @a wtid (set only if @a http_status is #MHD_HTTP_OK)
+ * @param details_length length of the @a details array
+ * @param details array with details about the combined transactions
+ */
+typedef void
+(*TALER_EXCHANGE_WireDepositsCallback)(void *cls,
+                                   unsigned int http_status,
+                                   json_t *json,
+                                   const struct GNUNET_HashCode *h_wire,
+                                   const struct TALER_Amount *total_amount,
+                                   unsigned int details_length,
+                                   const struct TALER_WireDepositDetails *details);
+
+
+/**
+ * Query the exchange about which transactions were combined
+ * to create a wire transfer.
+ *
+ * @param exchange exchange to query
+ * @param wtid raw wire transfer identifier to get information about
+ * @param cb callback to call
+ * @param cb_cls closure for @a cb
+ * @return handle to cancel operation
+ */
+struct TALER_EXCHANGE_WireDepositsHandle *
+TALER_EXCHANGE_wire_deposits (struct TALER_EXCHANGE_Handle *exchange,
+                          const struct TALER_WireTransferIdentifierRawP *wtid,
+                          TALER_EXCHANGE_WireDepositsCallback cb,
+                          void *cb_cls);
+
+
+/**
+ * Cancel wire deposits request.  This function cannot be used on a request
+ * handle if a response is already served for it.
+ *
+ * @param wdh the wire deposits request handle
+ */
+void
+TALER_EXCHANGE_wire_deposits_cancel (struct TALER_EXCHANGE_WireDepositsHandle *wdh);
+
+
+/* ********************* /deposit/wtid *********************** */
+
+
+/**
+ * @brief A /deposit/wtid Handle
+ */
+struct TALER_EXCHANGE_DepositWtidHandle;
+
+
+/**
+ * Function called with detailed wire transfer data.
+ *
+ * @param cls closure
+ * @param http_status HTTP status code we got, 0 on exchange protocol violation
+ * @param json original json reply (may include signatures, those have then been
+ *        validated already)
+ * @param wtid wire transfer identifier used by the exchange, NULL if exchange did not
+ *                  yet execute the transaction
+ * @param execution_time actual or planned execution time for the wire transfer
+ * @param coin_contribution contribution to the @a total_amount of the deposited coin (may be NULL)
+ */
+typedef void
+(*TALER_EXCHANGE_DepositWtidCallback)(void *cls,
+                                  unsigned int http_status,
+                                  json_t *json,
+                                  const struct TALER_WireTransferIdentifierRawP *wtid,
+                                  struct GNUNET_TIME_Absolute execution_time,
+                                  const struct TALER_Amount *coin_contribution);
+
+
+/**
+ * Obtain the wire transfer details for a given deposit.
+ *
+ * @param exchange the exchange to query
+ * @param merchant_priv the merchant's private key
+ * @param h_wire hash of merchant's wire transfer details
+ * @param h_contract hash of the contract
+ * @param coin_pub public key of the coin
+ * @param transaction_id transaction identifier
+ * @param cb function to call with the result
+ * @param cb_cls closure for @a cb
+ * @return handle to abort request
+ */
+struct TALER_EXCHANGE_DepositWtidHandle *
+TALER_EXCHANGE_deposit_wtid (struct TALER_EXCHANGE_Handle *exchange,
+                         const struct TALER_MerchantPrivateKeyP *merchant_priv,
+                         const struct GNUNET_HashCode *h_wire,
+                         const struct GNUNET_HashCode *h_contract,
+                         const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                         uint64_t transaction_id,
+                         TALER_EXCHANGE_DepositWtidCallback cb,
+                         void *cb_cls);
+
+
+/**
+ * Cancel deposit wtid request.  This function cannot be used on a request
+ * handle if a response is already served for it.
+ *
+ * @param dwh the wire deposits request handle
+ */
+void
+TALER_EXCHANGE_deposit_wtid_cancel (struct TALER_EXCHANGE_DepositWtidHandle *dwh);
+
+
+#endif  /* _TALER_EXCHANGE_SERVICE_H */
diff --git a/src/include/taler_exchangedb_lib.h b/src/include/taler_exchangedb_lib.h
new file mode 100644
index 000000000..347ad0650
--- /dev/null
+++ b/src/include/taler_exchangedb_lib.h
@@ -0,0 +1,291 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file include/taler_exchangedb_lib.h
+ * @brief IO operations for the exchange's private keys
+ * @author Florian Dold
+ * @author Benedikt Mueller
+ * @author Christian Grothoff
+ */
+#ifndef TALER_EXCHANGEDB_LIB_H
+#define TALER_EXCHANGEDB_LIB_H
+
+#include "taler_signatures.h"
+
+/**
+ * Subdirectroy under the exchange's base directory which contains
+ * the exchange's signing keys.
+ */
+#define TALER_EXCHANGEDB_DIR_SIGNING_KEYS "signkeys"
+
+/**
+ * Subdirectory under the exchange's base directory which contains
+ * the exchange's denomination keys.
+ */
+#define TALER_EXCHANGEDB_DIR_DENOMINATION_KEYS "denomkeys"
+
+/**
+ * Subdirectory under the exchange's base directory which contains
+ * the exchange's auditing information.
+ */
+#define TALER_EXCHANGEDB_DIR_AUDITORS "auditors"
+
+
+GNUNET_NETWORK_STRUCT_BEGIN
+
+/**
+ * @brief On disk format used for a exchange signing key.  Signing keys are used
+ * by the exchange to affirm its messages, but not to create coins.
+ * Includes the private key followed by the public information about
+ * the signing key.
+ */
+struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP
+{
+  /**
+   * Private key part of the exchange's signing key.
+   */
+  struct TALER_ExchangePrivateKeyP signkey_priv;
+
+  /**
+   * Public information about a exchange signing key.
+   */
+  struct TALER_ExchangeSigningKeyValidityPS issue;
+};
+
+
+/**
+ * Information about a denomination key.
+ */
+struct TALER_EXCHANGEDB_DenominationKeyInformationP
+{
+
+  /**
+   * Signature over this struct to affirm the validity of the key.
+   */
+  struct TALER_MasterSignatureP signature;
+
+  /**
+   * Signed properties of the denomination key.
+   */
+  struct TALER_DenominationKeyValidityPS properties;
+};
+
+
+GNUNET_NETWORK_STRUCT_END
+
+
+/**
+ * @brief All information about a denomination key (which is used to
+ * sign coins into existence).
+ */
+struct TALER_EXCHANGEDB_DenominationKeyIssueInformation
+{
+  /**
+   * The private key of the denomination.  Will be NULL if the private
+   * key is not available (this is the case after the key has expired
+   * for signing coins, but is still valid for depositing coins).
+   */
+  struct TALER_DenominationPrivateKey denom_priv;
+
+  /**
+   * Decoded denomination public key (the hash of it is in
+   * @e issue, but we sometimes need the full public key as well).
+   */
+  struct TALER_DenominationPublicKey denom_pub;
+
+  /**
+   * Signed public information about a denomination key.
+   */
+  struct TALER_EXCHANGEDB_DenominationKeyInformationP issue;
+};
+
+
+/**
+ * @brief Iterator over signing keys.
+ *
+ * @param cls closure
+ * @param filename name of the file the key came from
+ * @param ski the sign key
+ * @return #GNUNET_OK to continue to iterate,
+ *  #GNUNET_NO to stop iteration with no error,
+ *  #GNUNET_SYSERR to abort iteration with error!
+ */
+typedef int
+(*TALER_EXCHANGEDB_SigningKeyIterator)(void *cls,
+                                   const char *filename,
+                                   const struct TALER_EXCHANGEDB_PrivateSigningKeyInformationP *ski);
+
+
+/**
+ * Call @a it for each signing key found in the @a exchange_base_dir.
+ *
+ * @param exchange_base_dir base directory for the exchange,
+ *                      the signing keys must be in the #TALER_EXCHANGEDB_DIR_SIGNING_KEYS
+ *                      subdirectory
+ * @param it function to call on each signing key
+ * @param it_cls closure for @a it
+ * @return number of files found (may not match
+ *         number of keys given to @a it as malformed
+ *         files are simply skipped), -1 on error
+ */
+int
+TALER_EXCHANGEDB_signing_keys_iterate (const char *exchange_base_dir,
+                                   TALER_EXCHANGEDB_SigningKeyIterator it,
+                                   void *it_cls);
+
+
+
+/**
+ * @brief Iterator over denomination keys.
+ *
+ * @param cls closure
+ * @param dki the denomination key
+ * @param alias coin alias
+ * @return #GNUNET_OK to continue to iterate,
+ *  #GNUNET_NO to stop iteration with no error,
+ *  #GNUNET_SYSERR to abort iteration with error!
+ */
+typedef int
+(*TALER_EXCHANGEDB_DenominationKeyIterator)(void *cls,
+                                        const char *alias,
+                                        const struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki);
+
+
+/**
+ * Call @a it for each denomination key found in the @a exchange_base_dir.
+ *
+ * @param exchange_base_dir base directory for the exchange,
+ *                      the signing keys must be in the #TALER_EXCHANGEDB_DIR_DENOMINATION_KEYS
+ *                      subdirectory
+ * @param it function to call on each denomination key found
+ * @param it_cls closure for @a it
+ * @return -1 on error, 0 if no files were found, otherwise
+ *         a positive number (however, even with a positive
+ *         number it is possible that @a it was never called
+ *         as maybe none of the files were well-formed)
+ */
+int
+TALER_EXCHANGEDB_denomination_keys_iterate (const char *exchange_base_dir,
+                                        TALER_EXCHANGEDB_DenominationKeyIterator it,
+                                        void *it_cls);
+
+
+/**
+ * Exports a denomination key to the given file.
+ *
+ * @param filename the file where to write the denomination key
+ * @param dki the denomination key
+ * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure.
+ */
+int
+TALER_EXCHANGEDB_denomination_key_write (const char *filename,
+                                     const struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki);
+
+
+/**
+ * Import a denomination key from the given file.
+ *
+ * @param filename the file to import the key from
+ * @param[out] dki set to the imported denomination key
+ * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
+ */
+int
+TALER_EXCHANGEDB_denomination_key_read (const char *filename,
+                                    struct TALER_EXCHANGEDB_DenominationKeyIssueInformation *dki);
+
+
+/**
+ * @brief Iterator over auditor information.
+ *
+ * @param cls closure
+ * @param apub the auditor's public key
+ * @param mpub the exchange's public key (as expected by the auditor)
+ * @param dki_len length of @a asig and @a dki arrays
+ * @param asigs array of the auditor's signatures over the @a dks, of length @a dki_len
+ * @param dki array of denomination coin data signed by the auditor, of length @a dki_len
+ * @return #GNUNET_OK to continue to iterate,
+ *  #GNUNET_NO to stop iteration with no error,
+ *  #GNUNET_SYSERR to abort iteration with error!
+ */
+typedef int
+(*TALER_EXCHANGEDB_AuditorIterator)(void *cls,
+                                const struct TALER_AuditorPublicKeyP *apub,
+                                const struct TALER_MasterPublicKeyP *mpub,
+                                unsigned int dki_len,
+                                const struct TALER_AuditorSignatureP *asigs,
+                                const struct TALER_DenominationKeyValidityPS *dki);
+
+
+/**
+ * Call @a it with information for each auditor found in the @a exchange_base_dir.
+ *
+ * @param exchange_base_dir base directory for the exchange,
+ *                      the signing keys must be in the #TALER_EXCHANGEDB_DIR_DENOMINATION_KEYS
+ *                      subdirectory
+ * @param it function to call with auditor information
+ * @param it_cls closure for @a it
+ * @return -1 on error, 0 if no files were found, otherwise
+ *         a positive number (however, even with a positive
+ *         number it is possible that @a it was never called
+ *         as maybe none of the files were well-formed)
+ */
+int
+TALER_EXCHANGEDB_auditor_iterate (const char *exchange_base_dir,
+                              TALER_EXCHANGEDB_AuditorIterator it,
+                              void *it_cls);
+
+
+/**
+ * Write auditor information to the given file.
+ *
+ * @param filename the file where to write the auditor information to
+ * @param apub the auditor's public key
+ * @param asigs the auditor's signatures, array of length @a dki_len
+ * @param mpub the exchange's public key (as expected by the auditor)
+ * @param dki_len length of @a dki and @a asigs arrays
+ * @param dki array of denomination coin data signed by the auditor
+ * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure.
+ */
+int
+TALER_EXCHANGEDB_auditor_write (const char *filename,
+                            const struct TALER_AuditorPublicKeyP *apub,
+                            const struct TALER_AuditorSignatureP *asigs,
+                            const struct TALER_MasterPublicKeyP *mpub,
+                            unsigned int dki_len,
+                            const struct TALER_DenominationKeyValidityPS *dki);
+
+
+/**
+ * Initialize the plugin.
+ *
+ * @param cfg configuration to use
+ * @return NULL on failure
+ */
+struct TALER_EXCHANGEDB_Plugin *
+TALER_EXCHANGEDB_plugin_load (const struct GNUNET_CONFIGURATION_Handle *cfg);
+
+
+/**
+ * Shutdown the plugin.
+ *
+ * @param plugin plugin to unload
+ */
+void
+TALER_EXCHANGEDB_plugin_unload (struct TALER_EXCHANGEDB_Plugin *plugin);
+
+
+
+#endif
diff --git a/src/include/taler_exchangedb_plugin.h b/src/include/taler_exchangedb_plugin.h
new file mode 100644
index 000000000..aecb050a7
--- /dev/null
+++ b/src/include/taler_exchangedb_plugin.h
@@ -0,0 +1,1431 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
+
+  TALER is free software; you can redistribute it and/or modify it under the
+  terms of the GNU General Public License as published by the Free Software
+  Foundation; either version 3, or (at your option) any later version.
+
+  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
+  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License along with
+  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file include/taler_exchangedb_plugin.h
+ * @brief Low-level (statement-level) database access for the exchange
+ * @author Florian Dold
+ * @author Christian Grothoff
+ */
+#ifndef TALER_EXCHANGEDB_PLUGIN_H
+#define TALER_EXCHANGEDB_PLUGIN_H
+
+#include <gnunet/gnunet_util_lib.h>
+#include "taler_exchangedb_lib.h"
+
+
+/**
+ * @brief Information we keep on bank transfer(s) that established a reserve.
+ */
+struct TALER_EXCHANGEDB_BankTransfer
+{
+
+  /**
+   * Public key of the reserve that was filled.
+   */
+  struct TALER_ReservePublicKeyP reserve_pub;
+
+  /**
+   * Amount that was transferred to the exchange.
+   */
+  struct TALER_Amount amount;
+
+  /**
+   * When did the exchange receive the incoming transaction?
+   * (This is the execution date of the exchange's database,
+   * the execution date of the bank should be in @e wire).
+   */
+  struct GNUNET_TIME_Absolute execution_date;
+
+  /**
+   * Detailed wire information about the transaction.
+   */
+  json_t *wire;
+
+};
+
+
+/**
+ * @brief A summary of a Reserve
+ */
+struct TALER_EXCHANGEDB_Reserve
+{
+  /**
+   * The reserve's public key.  This uniquely identifies the reserve
+   */
+  struct TALER_ReservePublicKeyP pub;
+
+  /**
+   * The balance amount existing in the reserve
+   */
+  struct TALER_Amount balance;
+
+  /**
+   * The expiration date of this reserve
+   */
+  struct GNUNET_TIME_Absolute expiry;
+};
+
+
+/**
+ * @brief Information we keep for a withdrawn coin to reproduce
+ * the /withdraw operation if needed, and to have proof
+ * that a reserve was drained by this amount.
+ */
+struct TALER_EXCHANGEDB_CollectableBlindcoin
+{
+
+  /**
+   * Our signature over the (blinded) coin.
+   */
+  struct TALER_DenominationSignature sig;
+
+  /**
+   * Denomination key (which coin was generated).
+   */
+  struct TALER_DenominationPublicKey denom_pub;
+
+  /**
+   * Value of the coin being exchangeed (matching the denomination key)
+   * plus the transaction fee.  We include this in what is being
+   * signed so that we can verify a reserve's remaining total balance
+   * without needing to access the respective denomination key
+   * information each time.
+   */
+  struct TALER_Amount amount_with_fee;
+
+  /**
+   * Withdrawl fee charged by the exchange.  This must match the Exchange's
+   * denomination key's withdrawl fee.  If the client puts in an
+   * invalid withdrawl fee (too high or too low) that does not match
+   * the Exchange's denomination key, the withdraw operation is invalid
+   * and will be rejected by the exchange.  The @e amount_with_fee minus
+   * the @e withdraw_fee is must match the value of the generated
+   * coin.  We include this in what is being signed so that we can
+   * verify a exchange's accounting without needing to access the
+   * respective denomination key information each time.
+   */
+  struct TALER_Amount withdraw_fee;
+
+  /**
+   * Public key of the reserve that was drained.
+   */
+  struct TALER_ReservePublicKeyP reserve_pub;
+
+  /**
+   * Hash over the blinded message, needed to verify
+   * the @e reserve_sig.
+   */
+  struct GNUNET_HashCode h_coin_envelope;
+
+  /**
+   * Signature confirming the withdrawl, matching @e reserve_pub,
+   * @e denom_pub and @e h_coin_envelope.
+   */
+  struct TALER_ReserveSignatureP reserve_sig;
+};
+
+
+
+/**
+ * @brief Types of operations on a reserved.
+ */
+enum TALER_EXCHANGEDB_ReserveOperation
+{
+  /**
+   * Money was deposited into the reserve via a bank transfer.
+   */
+  TALER_EXCHANGEDB_RO_BANK_TO_EXCHANGE = 0,
+
+  /**
+   * A Coin was withdrawn from the reserve using /withdraw.
+   */
+  TALER_EXCHANGEDB_RO_WITHDRAW_COIN = 1
+};
+
+
+/**
+ * @brief Reserve history as a linked list.  Lists all of the transactions
+ * associated with this reserve (such as the bank transfers that
+ * established the reserve and all /withdraw operations we have done
+ * since).
+ */
+struct TALER_EXCHANGEDB_ReserveHistory
+{
+
+  /**
+   * Next entry in the reserve history.
+   */
+  struct TALER_EXCHANGEDB_ReserveHistory *next;
+
+  /**
+   * Type of the event, determins @e details.
+   */
+  enum TALER_EXCHANGEDB_ReserveOperation type;
+
+  /**
+   * Details of the operation, depending on @e type.
+   */
+  union
+  {
+
+    /**
+     * Details about a bank transfer to the exchange.
+     */
+    struct TALER_EXCHANGEDB_BankTransfer *bank;
+
+    /**
+     * Details about a /withdraw operation.
+     */
+    struct TALER_EXCHANGEDB_CollectableBlindcoin *withdraw;
+
+  } details;
+
+};
+
+
+/**
+ * @brief Specification for a /deposit operation.  The combination of
+ * the coin's public key, the merchant's public key and the
+ * transaction ID must be unique.  While a coin can (theoretically) be
+ * deposited at the same merchant twice (with partial spending), the
+ * merchant must either use a different public key or a different
+ * transaction ID for the two transactions.  The same coin must not
+ * be used twice at the same merchant for the same transaction
+ * (as determined by transaction ID).  (Note: we might want to
+ * fix #3819 and include at least h_contract as well.)
+ */
+struct TALER_EXCHANGEDB_Deposit
+{
+  /**
+   * Information about the coin that is being deposited.
+   */
+  struct TALER_CoinPublicInfo coin;
+
+  /**
+   * ECDSA signature affirming that the customer intends
+   * this coin to be deposited at the merchant identified
+   * by @e h_wire in relation to the contract identified
+   * by @e h_contract.
+   */
+  struct TALER_CoinSpendSignatureP csig;
+
+  /**
+   * Public key of the merchant.  Enables later identification
+   * of the merchant in case of a need to rollback transactions.
+   */
+  struct TALER_MerchantPublicKeyP merchant_pub;
+
+  /**
+   * Hash over the contract between merchant and customer
+   * (remains unknown to the Exchange).
+   */
+  struct GNUNET_HashCode h_contract;
+
+  /**
+   * Hash of the (canonical) representation of @e wire, used
+   * to check the signature on the request.  Generated by
+   * the exchange from the detailed wire data provided by the
+   * merchant.
+   */
+  struct GNUNET_HashCode h_wire;
+
+  /**
+   * Detailed wire information for executing the transaction.
+   */
+  json_t *wire;
+
+  /**
+   * Merchant-generated transaction ID to detect duplicate
+   * transactions.
+   */
+  uint64_t transaction_id;
+
+  /**
+   * Time when this request was generated.  Used, for example, to
+   * assess when (roughly) the income was achieved for tax purposes.
+   * Note that the Exchange will only check that the timestamp is not "too
+   * far" into the future (i.e. several days).  The fact that the
+   * timestamp falls within the validity period of the coin's
+   * denomination key is irrelevant for the validity of the deposit
+   * request, as obviously the customer and merchant could conspire to
+   * set any timestamp.  Also, the Exchange must accept very old deposit
+   * requests, as the merchant might have been unable to transmit the
+   * deposit request in a timely fashion (so back-dating is not
+   * prevented).
+   */
+  struct GNUNET_TIME_Absolute timestamp;
+
+  /**
+   * How much time does the merchant have to issue a refund request?
+   * Zero if refunds are not allowed.  After this time, the coin
+   * cannot be refunded.
+   */
+  struct GNUNET_TIME_Absolute refund_deadline;
+
+  /**
+   * How much time does the merchant have to execute the wire transfer?
+   * This time is advisory for aggregating transactions, not a hard
+   * constraint (as the merchant can theoretically pick any time,
+   * including one in the past).
+   */
+  struct GNUNET_TIME_Absolute wire_deadline;
+
+  /**
+   * Fraction of the coin's remaining value to be deposited, including
+   * depositing fee (if any).  The coin is identified by @e coin_pub.
+   */
+  struct TALER_Amount amount_with_fee;
+
+  /**
+   * Depositing fee.
+   */
+  struct TALER_Amount deposit_fee;
+
+};
+
+
+/**
+ * @brief Global information for a refreshing session.  Includes
+ * dimensions of the operation, security parameters and
+ * client signatures from "/refresh/melt" and "/refresh/commit".
+ */
+struct TALER_EXCHANGEDB_RefreshSession
+{
+
+  /**
+   * Number of coins we are melting.
+   */
+  uint16_t num_oldcoins;
+
+  /**
+   * Number of new coins we are creating.
+   */
+  uint16_t num_newcoins;
+
+  /**
+   * Index (smaller #TALER_CNC_KAPPA) which the exchange has chosen to not
+   * have revealed during cut and choose.
+   */
+  uint16_t noreveal_index;
+
+};
+
+
+/**
+ * @brief Specification for coin in a /refresh/melt operation.
+ */
+struct TALER_EXCHANGEDB_RefreshMelt
+{
+  /**
+   * Information about the coin that is being melted.
+   */
+  struct TALER_CoinPublicInfo coin;
+
+  /**
+   * Signature over the melting operation.
+   */
+  struct TALER_CoinSpendSignatureP coin_sig;
+
+  /**
+   * Hash of the refresh session this coin is melted into.
+   */
+  struct GNUNET_HashCode session_hash;
+
+  /**
+   * How much value is being melted?  This amount includes the fees,
+   * so the final amount contributed to the melt is this value minus
+   * the fee for melting the coin.  We include the fee in what is
+   * being signed so that we can verify a reserve's remaining total
+   * balance without needing to access the respective denomination key
+   * information each time.
+   */
+  struct TALER_Amount amount_with_fee;
+
+  /**
+   * Melting fee charged by the exchange.  This must match the Exchange's
+   * denomination key's melting fee.  If the client puts in an invalid
+   * melting fee (too high or too low) that does not match the Exchange's
+   * denomination key, the melting operation is invalid and will be
+   * rejected by the exchange.  The @e amount_with_fee minus the @e
+   * melt_fee is the amount that will be credited to the melting
+   * session.
+   */
+  struct TALER_Amount melt_fee;
+
+};
+
+
+/**
+ * @brief We have as many `struct TALER_EXCHANGEDB_RefreshCommitCoin` as there are new
+ * coins being created by the refresh (for each of the #TALER_CNC_KAPPA
+ * sets).  These are the coins we ask the exchange to sign if the
+ * respective set is selected.
+ */
+struct TALER_EXCHANGEDB_RefreshCommitCoin
+{
+
+  /**
+   * Encrypted data allowing those able to decrypt it to derive
+   * the private keys of the new coins created by the refresh.
+   */
+  struct TALER_RefreshLinkEncrypted *refresh_link;
+
+  /**
+   * Blinded message to be signed (in envelope), with @e coin_env_size bytes.
+   */
+  char *coin_ev;
+
+  /**
+   * Number of bytes in @e coin_ev.
+   */
+  size_t coin_ev_size;
+
+};
+
+
+/**
+ * @brief Linked list of refresh information linked to a coin.
+ */
+struct TALER_EXCHANGEDB_LinkDataList
+{
+  /**
+   * Information is stored in a NULL-terminated linked list.
+   */
+  struct TALER_EXCHANGEDB_LinkDataList *next;
+
+  /**
+   * Link data, used to recover the private key of the coin
+   * by the owner of the old coin.
+   */
+  struct TALER_RefreshLinkEncrypted *link_data_enc;
+
+  /**
+   * Denomination public key, determines the value of the coin.
+   */
+  struct TALER_DenominationPublicKey denom_pub;
+
+  /**
+   * Signature over the blinded envelope.
+   */
+  struct TALER_DenominationSignature ev_sig;
+};
+
+
+/**
+ * @brief Enumeration to classify the different types of transactions
+ * that can be done with a coin.
+ */
+enum TALER_EXCHANGEDB_TransactionType
+{
+  /**
+   * /deposit operation.
+   */
+  TALER_EXCHANGEDB_TT_DEPOSIT = 0,
+
+  /**
+   * /refresh/melt operation.
+   */
+  TALER_EXCHANGEDB_TT_REFRESH_MELT = 1
+
+};
+
+
+/**
+ * @brief List of transactions we performed for a particular coin.
+ */
+struct TALER_EXCHANGEDB_TransactionList
+{
+
+  /**
+   * Next pointer in the NULL-terminated linked list.
+   */
+  struct TALER_EXCHANGEDB_TransactionList *next;
+
+  /**
+   * Type of the transaction, determines what is stored in @e details.
+   */
+  enum TALER_EXCHANGEDB_TransactionType type;
+
+  /**
+   * Details about the transaction, depending on @e type.
+   */
+  union
+  {
+
+    /**
+     * Details if transaction was a /deposit operation.
+     */
+    struct TALER_EXCHANGEDB_Deposit *deposit;
+
+    /**
+     * Details if transaction was a /refresh/melt operation.
+     */
+    struct TALER_EXCHANGEDB_RefreshMelt *melt;
+
+  } details;
+
+};
+
+
+/**
+ * @brief All of the information from a /refresh/melt commitment.
+ */
+struct TALER_EXCHANGEDB_MeltCommitment
+{
+
+  /**
+   * Number of coins we are melting.
+   */
+  uint16_t num_oldcoins;
+
+  /**
+   * Number of new coins we are creating.
+   */
+  uint16_t num_newcoins;
+
+  /**
+   * Array of @e num_oldcoins melt operation details.
+   */
+  struct TALER_EXCHANGEDB_RefreshMelt *melts;
+
+  /**
+   * Array of @e num_newcoins denomination keys
+   */
+  struct TALER_DenominationPublicKey *denom_pubs;
+
+  /**
+   * 2D-Array of #TALER_CNC_KAPPA and @e num_newcoins commitments.
+   */
+  struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coins[TALER_CNC_KAPPA];
+
+  /**
+   * 2D-Array of #TALER_CNC_KAPPA and @e new_oldcoins links.
+   */
+  struct TALER_RefreshCommitLinkP *commit_links[TALER_CNC_KAPPA];
+};
+
+
+/**
+ * @brief Handle for a database session (per-thread, for transactions).
+ */
+struct TALER_EXCHANGEDB_Session;
+
+
+/**
+ * Function called with details about deposits that
+ * have been made, with the goal of executing the
+ * corresponding wire transaction.
+ *
+ * @param cls closure
+ * @param rowid unique ID for the deposit in our DB, used for marking
+ *              it as 'tiny' or 'done'
+ * @param merchant_pub public key of the merchant
+ * @param coin_pub public key of the coin
+ * @param amount_with_fee amount that was deposited including fee
+ * @param deposit_fee amount the exchange gets to keep as transaction fees
+ * @param transaction_id unique transaction ID chosen by the merchant
+ * @param h_contract hash of the contract between merchant and customer
+ * @param wire_deadline by which the merchant adviced that he would like the
+ *        wire transfer to be executed
+ * @param wire wire details for the merchant, NULL from iterate_matching_deposits()
+ * @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
+ */
+typedef int
+(*TALER_EXCHANGEDB_DepositIterator)(void *cls,
+                                unsigned long long rowid,
+                                const struct TALER_MerchantPublicKeyP *merchant_pub,
+                                const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                                const struct TALER_Amount *amount_with_fee,
+                                const struct TALER_Amount *deposit_fee,
+                                uint64_t transaction_id,
+                                const struct GNUNET_HashCode *h_contract,
+                                struct GNUNET_TIME_Absolute wire_deadline,
+                                const json_t *wire);
+
+
+/**
+ * Function called with the session hashes and transfer secret
+ * information for a given coin.
+ *
+ * @param cls closure
+ * @param session_hash a session the coin was melted in
+ * @param transfer_pub public transfer key for the session
+ * @param shared_secret_enc set to shared secret for the session
+ */
+typedef void
+(*TALER_EXCHANGEDB_TransferDataCallback)(void *cls,
+                                     const struct GNUNET_HashCode *session_hash,
+                                     const struct TALER_TransferPublicKeyP *transfer_pub,
+                                     const struct TALER_EncryptedLinkSecretP *shared_secret_enc);
+
+
+/**
+ * Function called with the results of the lookup of the
+ * wire transfer identifier information.  Only called if
+ * we are at least aware of the transaction existing.
+ *
+ * @param cls closure
+ * @param wtid wire transfer identifier, NULL
+ *         if the transaction was not yet done
+ * @param coin_contribution how much did the coin we asked about
+ *        contribute to the total transfer value? (deposit value including fee)
+ * @param coin_fee how much did the exchange charge for the deposit fee
+ * @param execution_time when was the transaction done, or
+ *         when we expect it to be done (if @a wtid was NULL)
+ */
+typedef void
+(*TALER_EXCHANGEDB_DepositWtidCallback)(void *cls,
+				    const struct TALER_WireTransferIdentifierRawP *wtid,
+                                    const struct TALER_Amount *coin_contribution,
+                                    const struct TALER_Amount *coin_fee,
+				    struct GNUNET_TIME_Absolute execution_time);
+
+
+/**
+ * Function called with the results of the lookup of the
+ * transaction data associated with a wire transfer identifier.
+ *
+ * @param cls closure
+ * @param merchant_pub public key of the merchant (should be same for all callbacks with the same @e cls)
+ * @param h_wire hash of wire transfer details of the merchant (should be same for all callbacks with the same @e cls)
+ * @param h_contract which contract was this payment about
+ * @param transaction_id merchant's transaction ID for the payment
+ * @param coin_pub which public key was this payment about
+ * @param coin_value amount contributed by this coin in total (with fee)
+ * @param coin_fee applicable fee for this coin
+ */
+typedef void
+(*TALER_EXCHANGEDB_WireTransferDataCallback)(void *cls,
+                                         const struct TALER_MerchantPublicKeyP *merchant_pub,
+                                         const struct GNUNET_HashCode *h_wire,
+                                         const struct GNUNET_HashCode *h_contract,
+                                         uint64_t transaction_id,
+                                         const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                                         const struct TALER_Amount *coin_value,
+                                         const struct TALER_Amount *coin_fee);
+
+
+/**
+ * Callback with data about a prepared transaction.
+ *
+ * @param cls closure
+ * @param rowid row identifier used to mark prepared transaction as done
+ * @param buf transaction data that was persisted, NULL on error
+ * @param buf_size number of bytes in @a buf, 0 on error
+ */
+typedef void
+(*TALER_EXCHANGEDB_WirePreparationCallback) (void *cls,
+                                         unsigned long long rowid,
+                                         const char *buf,
+                                         size_t buf_size);
+
+
+/**
+ * @brief The plugin API, returned from the plugin's "init" function.
+ * The argument given to "init" is simply a configuration handle.
+ */
+struct TALER_EXCHANGEDB_Plugin
+{
+
+  /**
+   * Closure for all callbacks.
+   */
+  void *cls;
+
+  /**
+   * Name of the library which generated this plugin.  Set by the
+   * plugin loader.
+   */
+  char *library_name;
+
+  /**
+   * Get the thread-local database-handle.
+   * Connect to the db if the connection does not exist yet.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param temporary #GNUNET_YES to use a temporary schema; #GNUNET_NO to use the
+   *        database default one
+   * @param the database connection, or NULL on error
+   */
+  struct TALER_EXCHANGEDB_Session *
+  (*get_session) (void *cls,
+                  int temporary);
+
+
+  /**
+   * Drop the temporary taler schema.  This is only useful for testcases.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
+   */
+  int
+  (*drop_temporary) (void *cls,
+                     struct TALER_EXCHANGEDB_Session *db);
+
+
+  /**
+   * Create the necessary tables if they are not present
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param temporary should we use a temporary schema
+   * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
+   */
+  int
+  (*create_tables) (void *cls,
+                    int temporary);
+
+
+  /**
+   * Start a transaction.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session connection to use
+   * @return #GNUNET_OK on success
+   */
+  int
+  (*start) (void *cls,
+            struct TALER_EXCHANGEDB_Session *session);
+
+
+  /**
+   * Commit a transaction.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session connection to use
+   * @return #GNUNET_OK on success, #GNUNET_NO if the transaction
+   *         can be retried, #GNUNET_SYSERR on hard failures
+   */
+  int
+  (*commit) (void *cls,
+             struct TALER_EXCHANGEDB_Session *session);
+
+
+  /**
+   * Abort/rollback a transaction.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session connection to use
+   */
+  void
+  (*rollback) (void *cls,
+               struct TALER_EXCHANGEDB_Session *session);
+
+
+  /**
+   * Insert information about a denomination key and in particular
+   * the properties (value, fees, expiration times) the coins signed
+   * with this key have.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session connection to use
+   * @param denom_pub the public key used for signing coins of this denomination
+   * @param issue issuing information with value, fees and other info about the coin
+   * @return #GNUNET_OK on success; #GNUNET_SYSERR on failure
+   */
+  int
+  (*insert_denomination_info) (void *cls,
+                               struct TALER_EXCHANGEDB_Session *session,
+                               const struct TALER_DenominationPublicKey *denom_pub,
+                               const struct TALER_EXCHANGEDB_DenominationKeyInformationP *issue);
+
+
+  /**
+   * Fetch information about a denomination key.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session connection to use
+   * @param denom_pub the public key used for signing coins of this denomination
+   * @param[out] issue set to issue information with value, fees and other info about the coin, can be NULL
+   * @return #GNUNET_OK on success; #GNUNET_NO if no record was found, #GNUNET_SYSERR on failure
+   */
+  int
+  (*get_denomination_info) (void *cls,
+                            struct TALER_EXCHANGEDB_Session *session,
+                            const struct TALER_DenominationPublicKey *denom_pub,
+                            struct TALER_EXCHANGEDB_DenominationKeyInformationP *issue);
+
+
+  /**
+   * Get the summary of a reserve.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param db the database connection handle
+   * @param[in,out] reserve the reserve data.  The public key of the reserve should be set
+   *          in this structure; it is used to query the database.  The balance
+   *          and expiration are then filled accordingly.
+   * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
+   */
+  int
+  (*reserve_get) (void *cls,
+                  struct TALER_EXCHANGEDB_Session *db,
+                  struct TALER_EXCHANGEDB_Reserve *reserve);
+
+
+  /**
+   * Insert a incoming transaction into reserves.  New reserves are
+   * also created through this function.  Note that this API call
+   * starts (and stops) its own transaction scope (so the application
+   * must not do so).
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param db the database connection handle
+   * @param reserve_pub public key of the reserve
+   * @param balance the amount that has to be added to the reserve
+   * @param execution_time when was the amount added
+   * @param details bank transaction details justifying the increment,
+   *        must be unique for each incoming transaction
+   * @return #GNUNET_OK upon success; #GNUNET_NO if the given
+   *         @a details are already known for this @a reserve_pub,
+   *         #GNUNET_SYSERR upon failures (DB error, incompatible currency)
+   */
+  int
+  (*reserves_in_insert) (void *cls,
+                         struct TALER_EXCHANGEDB_Session *db,
+                         const struct TALER_ReservePublicKeyP *reserve_pub,
+                         const struct TALER_Amount *balance,
+                         struct GNUNET_TIME_Absolute execution_time,
+                         const json_t *details);
+
+
+  /**
+   * Locate the response for a /withdraw request under the
+   * key of the hash of the blinded message.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database connection to use
+   * @param h_blind hash of the blinded coin to be signed (will match
+   *                `h_coin_envelope` in the @a collectable to be returned)
+   * @param collectable corresponding collectable coin (blind signature)
+   *                    if a coin is found
+   * @return #GNUNET_SYSERR on internal error
+   *         #GNUNET_NO if the collectable was not found
+   *         #GNUNET_YES on success
+   */
+  int
+  (*get_withdraw_info) (void *cls,
+                        struct TALER_EXCHANGEDB_Session *session,
+                        const struct GNUNET_HashCode *h_blind,
+                        struct TALER_EXCHANGEDB_CollectableBlindcoin *collectable);
+
+
+  /**
+   * Store collectable bit coin under the corresponding
+   * hash of the blinded message.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database connection to use
+   * @param collectable corresponding collectable coin (blind signature)
+   *                    if a coin is found
+   * @return #GNUNET_SYSERR on internal error
+   *         #GNUNET_NO if the collectable was not found
+   *         #GNUNET_YES on success
+   */
+  int
+  (*insert_withdraw_info) (void *cls,
+                           struct TALER_EXCHANGEDB_Session *session,
+                           const struct TALER_EXCHANGEDB_CollectableBlindcoin *collectable);
+
+
+  /**
+   * Get all of the transaction history associated with the specified
+   * reserve.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session connection to use
+   * @param reserve_pub public key of the reserve
+   * @return known transaction history (NULL if reserve is unknown)
+   */
+  struct TALER_EXCHANGEDB_ReserveHistory *
+  (*get_reserve_history) (void *cls,
+                          struct TALER_EXCHANGEDB_Session *session,
+                          const struct TALER_ReservePublicKeyP *reserve_pub);
+
+
+  /**
+   * Free memory associated with the given reserve history.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param rh history to free.
+   */
+  void
+  (*free_reserve_history) (void *cls,
+                           struct TALER_EXCHANGEDB_ReserveHistory *rh);
+
+
+  /**
+   * Check if we have the specified deposit already in the database.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database connection
+   * @param deposit deposit to search for
+   * @return #GNUNET_YES if we know this operation,
+   *         #GNUNET_NO if this exact deposit is unknown to us,
+   *         #GNUNET_SYSERR on DB error
+   */
+  int
+  (*have_deposit) (void *cls,
+                   struct TALER_EXCHANGEDB_Session *session,
+                   const struct TALER_EXCHANGEDB_Deposit *deposit);
+
+
+  /**
+   * Insert information about deposited coin into the database.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session connection to the database
+   * @param deposit deposit information to store
+   * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
+   */
+  int
+  (*insert_deposit) (void *cls,
+                     struct TALER_EXCHANGEDB_Session *session,
+                     const struct TALER_EXCHANGEDB_Deposit *deposit);
+
+
+  /**
+   * Mark a deposit as tiny, thereby declaring that it cannot be
+   * executed by itself and should no longer be returned by
+   * @e iterate_ready_deposits()
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session connection to the database
+   * @param deposit_rowid identifies the deposit row to modify
+   * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
+   */
+  int
+  (*mark_deposit_tiny) (void *cls,
+                        struct TALER_EXCHANGEDB_Session *session,
+                        unsigned long long rowid);
+
+
+  /**
+   * Mark a deposit as done, thereby declaring that it cannot be
+   * executed at all anymore, and should no longer be returned by
+   * @e iterate_ready_deposits() or @e iterate_matching_deposits().
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session connection to the database
+   * @param deposit_rowid identifies the deposit row to modify
+   * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
+   */
+  int
+  (*mark_deposit_done) (void *cls,
+                        struct TALER_EXCHANGEDB_Session *session,
+                        unsigned long long rowid);
+
+
+  /**
+   * Obtain information about deposits that are ready to be executed.
+   * Such deposits must not be marked as "tiny" or "done", and the
+   * execution time must be in the past.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session connection to the database
+   * @param deposit_cb function to call for ONE such deposit
+   * @param deposit_cb_cls closure for @a deposit_cb
+   * @return number of rows processed, 0 if none exist,
+   *         #GNUNET_SYSERR on error
+   */
+  int
+  (*get_ready_deposit) (void *cls,
+                        struct TALER_EXCHANGEDB_Session *session,
+                        TALER_EXCHANGEDB_DepositIterator deposit_cb,
+                        void *deposit_cb_cls);
+
+
+  /**
+   * Obtain information about other pending deposits for the same
+   * destination.  Those deposits must not already be "done".
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session connection to the database
+   * @param h_wire destination of the wire transfer
+   * @param merchant_pub public key of the merchant
+   * @param deposit_cb function to call for each deposit
+   * @param deposit_cb_cls closure for @a deposit_cb
+   * @param limit maximum number of matching deposits to return
+   * @return number of rows processed, 0 if none exist,
+   *         #GNUNET_SYSERR on error
+   */
+  int
+  (*iterate_matching_deposits) (void *cls,
+                                struct TALER_EXCHANGEDB_Session *session,
+                                const struct GNUNET_HashCode *h_wire,
+                                const struct TALER_MerchantPublicKeyP *merchant_pub,
+                                TALER_EXCHANGEDB_DepositIterator deposit_cb,
+                                void *deposit_cb_cls,
+                                uint32_t limit);
+
+
+  /**
+   * Lookup refresh session data under the given @a session_hash.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database handle to use
+   * @param session_hash hash over the melt to use for the lookup
+   * @param[out] refresh_session where to store the result
+   * @return #GNUNET_YES on success,
+   *         #GNUNET_NO if not found,
+   *         #GNUNET_SYSERR on DB failure
+   */
+  int
+  (*get_refresh_session) (void *cls,
+                          struct TALER_EXCHANGEDB_Session *session,
+                          const struct GNUNET_HashCode *session_hash,
+                          struct TALER_EXCHANGEDB_RefreshSession *refresh_session);
+
+
+  /**
+   * Store new refresh session data under the given @a session_hash.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database handle to use
+   * @param session_hash hash over the melt to use to locate the session
+   * @param refresh_session session data to store
+   * @return #GNUNET_YES on success,
+   *         #GNUNET_SYSERR on DB failure
+   */
+  int
+  (*create_refresh_session) (void *cls,
+                             struct TALER_EXCHANGEDB_Session *session,
+                             const struct GNUNET_HashCode *session_hash,
+                             const struct TALER_EXCHANGEDB_RefreshSession *refresh_session);
+
+
+  /**
+   * Store the given /refresh/melt request in the database.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database connection
+   * @param oldcoin_index index of the coin to store
+   * @param melt coin melt operation details to store; includes
+   *             the session hash of the melt
+   * @return #GNUNET_OK on success
+   *         #GNUNET_SYSERR on internal error
+   */
+  int
+  (*insert_refresh_melt) (void *cls,
+                          struct TALER_EXCHANGEDB_Session *session,
+                          uint16_t oldcoin_index,
+                          const struct TALER_EXCHANGEDB_RefreshMelt *melt);
+
+
+  /**
+   * Get information about melted coin details from the database.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database connection
+   * @param session_hash hash to identify refresh session
+   * @param oldcoin_index index of the coin to retrieve
+   * @param melt melt data to fill in, can be NULL
+   * @return #GNUNET_OK on success
+   *         #GNUNET_SYSERR on internal error
+   */
+  int
+  (*get_refresh_melt) (void *cls,
+                       struct TALER_EXCHANGEDB_Session *session,
+                       const struct GNUNET_HashCode *session_hash,
+                       uint16_t oldcoin_index,
+                       struct TALER_EXCHANGEDB_RefreshMelt *melt);
+
+
+  /**
+   * Store in the database which coin(s) we want to create
+   * in a given refresh operation.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database connection
+   * @param session_hash hash to identify refresh session
+   * @param num_newcoins number of coins to generate, size of the @a denom_pubs array
+   * @param denom_pubs array denominations of the coins to create
+   * @return #GNUNET_OK on success
+   *         #GNUNET_SYSERR on internal error
+   */
+  int
+  (*insert_refresh_order) (void *cls,
+                           struct TALER_EXCHANGEDB_Session *session,
+                           const struct GNUNET_HashCode *session_hash,
+                           uint16_t num_newcoins,
+                           const struct TALER_DenominationPublicKey *denom_pubs);
+
+
+  /**
+   * Lookup in the database for the @a num_newcoins coins that we want to
+   * create in the given refresh operation.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database connection
+   * @param session_hash hash to identify refresh session
+   * @param num_newcoins size of the @a denom_pubs array
+   * @param[out] denom_pubs where to write @a num_newcoins denomination keys
+   * @return #GNUNET_OK on success
+   *         #GNUNET_SYSERR on internal error
+   */
+  int
+  (*get_refresh_order) (void *cls,
+                        struct TALER_EXCHANGEDB_Session *session,
+                        const struct GNUNET_HashCode *session_hash,
+                        uint16_t num_newcoins,
+                        struct TALER_DenominationPublicKey *denom_pubs);
+
+
+  /**
+   * Store information about the commitments of the given index @a i
+   * for the given refresh session in the database.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database connection to use
+   * @param session_hash hash to identify refresh session
+   * @param cnc_index cut and choose index (1st dimension), relating to #TALER_CNC_KAPPA
+   * @param num_newcoins coin index size of the @a commit_coins array
+   * @param commit_coin array of coin commitments to store
+   * @return #GNUNET_OK on success
+   *         #GNUNET_SYSERR on error
+   */
+  int
+  (*insert_refresh_commit_coins) (void *cls,
+                                  struct TALER_EXCHANGEDB_Session *session,
+                                  const struct GNUNET_HashCode *session_hash,
+                                  uint16_t cnc_index,
+                                  uint16_t num_newcoins,
+                                  const struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coins);
+
+
+  /**
+   * Obtain information about the commitment of the
+   * given coin of the given refresh session from the database.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database connection to use
+   * @param session_hash hash to identify refresh session
+   * @param cnc_index cut and choose set index (1st dimension)
+   * @param num_coins size of the @a commit_coins array
+   * @param[out] commit_coins array of coin commitments to return
+   * @return #GNUNET_OK on success
+   *         #GNUNET_NO if not found
+   *         #GNUNET_SYSERR on error
+   */
+  int
+  (*get_refresh_commit_coins) (void *cls,
+                               struct TALER_EXCHANGEDB_Session *session,
+                               const struct GNUNET_HashCode *session_hash,
+                               uint16_t cnc_index,
+                               uint16_t num_coins,
+                               struct TALER_EXCHANGEDB_RefreshCommitCoin *commit_coins);
+
+
+  /**
+   * Store the commitment to the given (encrypted) refresh link data
+   * for the given refresh session.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database connection to use
+   * @param session_hash hash to identify refresh session
+   * @param cnc_index cut and choose index (1st dimension), relating to #TALER_CNC_KAPPA
+   * @param num_links size of the @a commit_link array
+   * @param commit_links array of link information to store
+   * @return #GNUNET_SYSERR on internal error, #GNUNET_OK on success
+   */
+  int
+  (*insert_refresh_commit_links) (void *cls,
+                                  struct TALER_EXCHANGEDB_Session *session,
+                                  const struct GNUNET_HashCode *session_hash,
+                                  uint16_t cnc_index,
+                                  uint16_t num_links,
+                                  const struct TALER_RefreshCommitLinkP *commit_links);
+
+  /**
+   * Obtain the commited (encrypted) refresh link data
+   * for the given refresh session.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database connection to use
+   * @param session_hash hash to identify refresh session
+   * @param cnc_index cut and choose index (1st dimension)
+   * @param num_links size of the @a links array to return
+   * @param[out] links array link information to return
+   * @return #GNUNET_SYSERR on internal error,
+   *         #GNUNET_NO if commitment was not found
+   *         #GNUNET_OK on success
+   */
+  int
+  (*get_refresh_commit_links) (void *cls,
+                               struct TALER_EXCHANGEDB_Session *session,
+                               const struct GNUNET_HashCode *session_hash,
+                               uint16_t cnc_index,
+                               uint16_t num_links,
+                               struct TALER_RefreshCommitLinkP *links);
+
+
+  /**
+   * Get all of the information from the given melt commit operation.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database connection to use
+   * @param session_hash hash to identify refresh session
+   * @return NULL if the @a session_hash does not correspond to any known melt
+   *         operation
+   */
+  struct TALER_EXCHANGEDB_MeltCommitment *
+  (*get_melt_commitment) (void *cls,
+                          struct TALER_EXCHANGEDB_Session *session,
+                          const struct GNUNET_HashCode *session_hash);
+
+
+  /**
+   * Free information about a melt commitment.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param mc melt commitment data to free
+   */
+  void
+  (*free_melt_commitment) (void *cls,
+                           struct TALER_EXCHANGEDB_MeltCommitment *mc);
+
+
+  /**
+   * Insert signature of a new coin generated during refresh into
+   * the database indexed by the refresh session and the index
+   * of the coin.  This data is later used should an old coin
+   * be used to try to obtain the private keys during "/refresh/link".
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database connection
+   * @param session_hash hash to identify refresh session
+   * @param newcoin_index coin index
+   * @param ev_sig coin signature
+   * @return #GNUNET_OK on success
+   */
+  int
+  (*insert_refresh_out) (void *cls,
+                         struct TALER_EXCHANGEDB_Session *session,
+                         const struct GNUNET_HashCode *session_hash,
+                         uint16_t newcoin_index,
+                         const struct TALER_DenominationSignature *ev_sig);
+
+
+  /**
+   * Obtain the link data of a coin, that is the encrypted link
+   * information, the denomination keys and the signatures.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database connection
+   * @param session_hash session to get linkage data for
+   * @return all known link data for the session
+   */
+  struct TALER_EXCHANGEDB_LinkDataList *
+  (*get_link_data_list) (void *cls,
+                         struct TALER_EXCHANGEDB_Session *session,
+                         const struct GNUNET_HashCode *session_hash);
+
+
+  /**
+   * Free memory of the link data list.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param ldl link data list to release
+   */
+  void
+  (*free_link_data_list) (void *cls,
+                          struct TALER_EXCHANGEDB_LinkDataList *ldl);
+
+
+  /**
+   * Obtain shared secret and transfer public key from the public key of
+   * the coin.  This information and the link information returned by
+   * @e get_link_data_list() enable the owner of an old coin to determine
+   * the private keys of the new coins after the melt.
+   *
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database connection
+   * @param coin_pub public key of the coin
+   * @param tdc function to call for each session the coin was melted into
+   * @param tdc_cls closure for @a tdc
+   * @return #GNUNET_OK on success,
+   *         #GNUNET_NO on failure (not found)
+   *         #GNUNET_SYSERR on internal failure (database issue)
+   */
+  int
+  (*get_transfer) (void *cls,
+                   struct TALER_EXCHANGEDB_Session *session,
+                   const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                   TALER_EXCHANGEDB_TransferDataCallback tdc,
+                   void *tdc_cls);
+
+
+  /**
+   * Compile a list of all (historic) transactions performed
+   * with the given coin (/refresh/melt and /deposit operations).
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database connection
+   * @param coin_pub coin to investigate
+   * @return list of transactions, NULL if coin is fresh
+   */
+  struct TALER_EXCHANGEDB_TransactionList *
+  (*get_coin_transactions) (void *cls,
+                            struct TALER_EXCHANGEDB_Session *session,
+                            const struct TALER_CoinSpendPublicKeyP *coin_pub);
+
+
+  /**
+   * Free linked list of transactions.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param list list to free
+   */
+  void
+  (*free_coin_transaction_list) (void *cls,
+                                 struct TALER_EXCHANGEDB_TransactionList *list);
+
+
+  /**
+   * Lookup the list of Taler transactions that was aggregated
+   * into a wire transfer by the respective @a raw_wtid.
+   *
+   * @param cls the @e cls of this struct with the plugin-specific state
+   * @param session database connection
+   * @param wtid the raw wire transfer identifier we used
+   * @param cb function to call on each transaction found
+   * @param cb_cls closure for @a cb
+   * @return #GNUNET_OK on success, #GNUNET_SYSERR on database errors,
+   *         #GNUNET_NO if we found no results
+   */
+  int
+  (*lookup_wire_transfer) (void *cls,
+                           struct TALER_EXCHANGEDB_Session *session,
+                           const struct TALER_WireTransferIdentifierRawP *wtid,
+                           TALER_EXCHANGEDB_WireTransferDataCallback cb,
+                           void *cb_cls);
+
+
+  /**
+   * Try to find the wire transfer details for a deposit operation.
+   * If we did not execute the deposit yet, return when it is supposed
+   * to be executed.
+   *
+   * @param cls closure
+   * @param session database connection
+   * @param h_contract hash of the contract
+   * @param h_wire hash of merchant wire details
+   * @param coin_pub public key of deposited coin
+   * @param merchant_pub merchant public key
+   * @param transaction_id transaction identifier
+   * @param cb function to call with the result
+   * @param cb_cls closure to pass to @a cb
+   * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors,
+   *         #GNUNET_NO if nothing was found
+   */
+  int
+  (*wire_lookup_deposit_wtid)(void *cls,
+                              struct TALER_EXCHANGEDB_Session *session,
+			      const struct GNUNET_HashCode *h_contract,
+			      const struct GNUNET_HashCode *h_wire,
+			      const struct TALER_CoinSpendPublicKeyP *coin_pub,
+			      const struct TALER_MerchantPublicKeyP *merchant_pub,
+			      uint64_t transaction_id,
+			      TALER_EXCHANGEDB_DepositWtidCallback cb,
+			      void *cb_cls);
+
+
+  /**
+   * Function called to insert aggregation information into the DB.
+   *
+   * @param cls closure
+   * @param session database connection
+   * @param wtid the raw wire transfer identifier we used
+   * @param merchant_pub public key of the merchant (should be same for all callbacks with the same @e cls)
+   * @param h_wire hash of wire transfer details of the merchant (should be same for all callbacks with the same @e cls)
+   * @param h_contract which contract was this payment about
+   * @param transaction_id merchant's transaction ID for the payment
+   * @param execution_time when did we execute the transaction
+   * @param coin_pub which public key was this payment about
+   * @param coin_value amount contributed by this coin in total
+   * @param coin_fee deposit fee charged by exchange for this coin
+   * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors
+   */
+  int
+  (*insert_aggregation_tracking)(void *cls,
+                                 struct TALER_EXCHANGEDB_Session *session,
+                                 const struct TALER_WireTransferIdentifierRawP *wtid,
+                                 const struct TALER_MerchantPublicKeyP *merchant_pub,
+                                 const struct GNUNET_HashCode *h_wire,
+                                 const struct GNUNET_HashCode *h_contract,
+                                 uint64_t transaction_id,
+                                 struct GNUNET_TIME_Absolute execution_time,
+                                 const struct TALER_CoinSpendPublicKeyP *coin_pub,
+                                 const struct TALER_Amount *coin_value,
+                                 const struct TALER_Amount *coin_fee);
+
+
+  /**
+   * Function called to insert wire transfer commit data into the DB.
+   *
+   * @param cls closure
+   * @param session database connection
+   * @param type type of the wire transfer (i.e. "sepa")
+   * @param buf buffer with wire transfer preparation data
+   * @param buf_size number of bytes in @a buf
+   * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors
+   */
+  int
+  (*wire_prepare_data_insert)(void *cls,
+                              struct TALER_EXCHANGEDB_Session *session,
+                              const char *type,
+                              const char *buf,
+                              size_t buf_size);
+
+
+  /**
+   * Function called to mark wire transfer commit data as finished.
+   *
+   * @param cls closure
+   * @param session database connection
+   * @param rowid which entry to mark as finished
+   * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors
+   */
+  int
+  (*wire_prepare_data_mark_finished)(void *cls,
+                                     struct TALER_EXCHANGEDB_Session *session,
+                                     unsigned long long rowid);
+
+
+  /**
+   * Function called to get an unfinished wire transfer
+   * preparation data. Fetches at most one item.
+   *
+   * @param cls closure
+   * @param session database connection
+   * @param type type fo the wire transfer (i.e. "sepa")
+   * @param cb function to call for ONE unfinished item
+   * @param cb_cls closure for @a cb
+   * @return #GNUNET_OK on success,
+   *         #GNUNET_NO if there are no entries,
+   *         #GNUNET_SYSERR on DB errors
+   */
+  int
+  (*wire_prepare_data_get)(void *cls,
+                           struct TALER_EXCHANGEDB_Session *session,
+                           const char *type,
+                           TALER_EXCHANGEDB_WirePreparationCallback cb,
+                           void *cb_cls);
+
+
+};
+
+
+#endif /* _TALER_EXCHANGE_DB_H */
diff --git a/src/include/taler_mint_service.h b/src/include/taler_mint_service.h
deleted file mode 100644
index 1502edfbc..000000000
--- a/src/include/taler_mint_service.h
+++ /dev/null
@@ -1,1220 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file include/taler_mint_service.h
- * @brief C interface of libtalermint, a C library to use mint's HTTP API
- * @author Sree Harsha Totakura <sreeharsha@totakura.in>
- * @author Christian Grothoff
- */
-#ifndef _TALER_MINT_SERVICE_H
-#define _TALER_MINT_SERVICE_H
-
-#include "taler_util.h"
-
-/* ********************* event loop *********************** */
-
-/**
- * @brief Handle to this library context.  This is where the
- * main event loop logic lives.
- */
-struct TALER_MINT_Context;
-
-
-/**
- * Initialise a context.  A context should be used for each thread and should
- * not be shared among multiple threads.
- *
- * @return the context, NULL on error (failure to initialize)
- */
-struct TALER_MINT_Context *
-TALER_MINT_init (void);
-
-
-/**
- * Obtain the information for a select() call to wait until
- * #TALER_MINT_perform() is ready again.  Note that calling
- * any other TALER_MINT-API may also imply that the library
- * is again ready for #TALER_MINT_perform().
- *
- * Basically, a client should use this API to prepare for select(),
- * then block on select(), then call #TALER_MINT_perform() and then
- * start again until the work with the context is done.
- *
- * This function will NOT zero out the sets and assumes that @a max_fd
- * and @a timeout are already set to minimal applicable values.  It is
- * safe to give this API FD-sets and @a max_fd and @a timeout that are
- * already initialized to some other descriptors that need to go into
- * the select() call.
- *
- * @param ctx context to get the event loop information for
- * @param read_fd_set will be set for any pending read operations
- * @param write_fd_set will be set for any pending write operations
- * @param except_fd_set is here because curl_multi_fdset() has this argument
- * @param max_fd set to the highest FD included in any set;
- *        if the existing sets have no FDs in it, the initial
- *        value should be "-1". (Note that `max_fd + 1` will need
- *        to be passed to select().)
- * @param timeout set to the timeout in milliseconds (!); -1 means
- *        no timeout (NULL, blocking forever is OK), 0 means to
- *        proceed immediately with #TALER_MINT_perform().
- */
-void
-TALER_MINT_get_select_info (struct TALER_MINT_Context *ctx,
-                            fd_set *read_fd_set,
-                            fd_set *write_fd_set,
-                            fd_set *except_fd_set,
-                            int *max_fd,
-                            long *timeout);
-
-
-/**
- * Run the main event loop for the Taler interaction.
- *
- * @param ctx the library context
- */
-void
-TALER_MINT_perform (struct TALER_MINT_Context *ctx);
-
-
-/**
- * Cleanup library initialisation resources.  This function should be called
- * after using this library to cleanup the resources occupied during library's
- * initialisation.
- *
- * @param ctx the library context
- */
-void
-TALER_MINT_fini (struct TALER_MINT_Context *ctx);
-
-
-/* *********************  /keys *********************** */
-
-
-/**
- * List of possible options to be passed to
- * #TALER_MINT_connect().
- */
-enum TALER_MINT_Option
-{
-  /**
-   * Terminator (end of option list).
-   */
-  TALER_MINT_OPTION_END = 0
-
-};
-
-
-/**
- * @brief Mint's signature key
- */
-struct TALER_MINT_SigningPublicKey
-{
-  /**
-   * The signing public key
-   */
-  struct TALER_MintPublicKeyP key;
-
-  /**
-   * Validity start time
-   */
-  struct GNUNET_TIME_Absolute valid_from;
-
-  /**
-   * Validity expiration time
-   */
-  struct GNUNET_TIME_Absolute valid_until;
-};
-
-
-/**
- * @brief Public information about a mint's denomination key
- */
-struct TALER_MINT_DenomPublicKey
-{
-  /**
-   * The public key
-   */
-  struct TALER_DenominationPublicKey key;
-
-  /**
-   * The hash of the public key.
-   */
-  struct GNUNET_HashCode h_key;
-
-  /**
-   * Timestamp indicating when the denomination key becomes valid
-   */
-  struct GNUNET_TIME_Absolute valid_from;
-
-  /**
-   * Timestamp indicating when the denomination key can’t be used anymore to
-   * withdraw new coins.
-   */
-  struct GNUNET_TIME_Absolute withdraw_valid_until;
-
-  /**
-   * Timestamp indicating when coins of this denomination become invalid.
-   */
-  struct GNUNET_TIME_Absolute deposit_valid_until;
-
-  /**
-   * When do signatures with this denomination key become invalid?
-   * After this point, these signatures cannot be used in (legal)
-   * disputes anymore, as the Mint is then allowed to destroy its side
-   * of the evidence.  @e expire_legal is expected to be significantly
-   * larger than @e expire_spend (by a year or more).
-   */
-  struct GNUNET_TIME_Absolute expire_legal;
-
-  /**
-   * The value of this denomination
-   */
-  struct TALER_Amount value;
-
-  /**
-   * The applicable fee for withdrawing a coin of this denomination
-   */
-  struct TALER_Amount fee_withdraw;
-
-  /**
-   * The applicable fee to spend a coin of this denomination
-   */
-  struct TALER_Amount fee_deposit;
-
-  /**
-   *The applicable fee to melt/refresh a coin of this denomination
-   */
-  struct TALER_Amount fee_refresh;
-};
-
-
-/**
- * @brief Information we get from the mint about auditors.
- */
-struct TALER_MINT_AuditorInformation
-{
-  /**
-   * Public key of the auditing institution.
-   */
-  struct TALER_AuditorPublicKeyP auditor_pub;
-
-  /**
-   * URL of the auditing institution.  The application must check that
-   * this is an acceptable auditor for its purpose and also verify
-   * that the @a auditor_pub matches the auditor's public key given at
-   * that website.  We expect that in practice software is going to
-   * often ship with an initial list of accepted auditors, just like
-   * browsers ship with a CA root store.
-   *
-   * This field may be NULL. (#3987).
-   */
-  const char *auditor_url;
-
-  /**
-   * Number of denomination keys audited by this auditor.
-   */
-  unsigned int num_denom_keys;
-
-  /**
-   * Array of length @a denom_keys with the denomination
-   * keys audited by this auditor.  Note that the array
-   * elements point to the same locations as the entries
-   * in the key's main `denom_keys` array.
-   */
-  const struct TALER_MINT_DenomPublicKey **denom_keys;
-};
-
-
-/**
- * @brief Information about keys from the mint.
- */
-struct TALER_MINT_Keys
-{
-
-  /**
-   * Long-term offline signing key of the mint.
-   */
-  struct TALER_MasterPublicKeyP master_pub;
-
-  /**
-   * Array of the mint's online signing keys.
-   */
-  struct TALER_MINT_SigningPublicKey *sign_keys;
-
-  /**
-   * Array of the mint's denomination keys.
-   */
-  struct TALER_MINT_DenomPublicKey *denom_keys;
-
-  /**
-   * Array of the keys of the auditors of the mint.
-   */
-  struct TALER_MINT_AuditorInformation *auditors;
-
-  /**
-   * Length of the @e sign_keys array.
-   */
-  unsigned int num_sign_keys;
-
-  /**
-   * Length of the @e denom_keys array.
-   */
-  unsigned int num_denom_keys;
-
-  /**
-   * Length of the @e auditors array.
-   */
-  unsigned int num_auditors;
-
-};
-
-
-/**
- * Function called with information about who is auditing
- * a particular mint and what key the mint is using.
- *
- * @param cls closure
- * @param keys information about the various keys used
- *        by the mint
- */
-typedef void
-(*TALER_MINT_CertificationCallback) (void *cls,
-                                     const struct TALER_MINT_Keys *keys);
-
-
-/**
- * @brief Handle to the mint.  This is where we interact with
- * a particular mint and keep the per-mint information.
- */
-struct TALER_MINT_Handle;
-
-
-/**
- * Initialise a connection to the mint.  Will connect to the
- * mint and obtain information about the mint's master public
- * key and the mint's auditor.  The respective information will
- * be passed to the @a cert_cb once available, and all future
- * interactions with the mint will be checked to be signed
- * (where appropriate) by the respective master key.
- *
- * @param ctx the context
- * @param url HTTP base URL for the mint
- * @param cert_cb function to call with the mint's certification information
- * @param cert_cb_cls closure for @a cert_cb
- * @param ... list of additional arguments, terminated by #TALER_MINT_OPTION_END.
- * @return the mint handle; NULL upon error
- */
-struct TALER_MINT_Handle *
-TALER_MINT_connect (struct TALER_MINT_Context *ctx,
-                    const char *url,
-                    TALER_MINT_CertificationCallback cert_cb,
-                    void *cert_cb_cls,
-                    ...);
-
-
-/**
- * Disconnect from the mint.
- *
- * @param mint the mint handle
- */
-void
-TALER_MINT_disconnect (struct TALER_MINT_Handle *mint);
-
-
-/**
- * Obtain the keys from the mint.
- *
- * @param mint the mint handle
- * @return the mint's key set
- */
-const struct TALER_MINT_Keys *
-TALER_MINT_get_keys (const struct TALER_MINT_Handle *mint);
-
-
-/**
- * Test if the given @a pub is a the current signing key from the mint
- * according to @a keys.
- *
- * @param keys the mint's key set
- * @param pub claimed current online signing key for the mint
- * @return #GNUNET_OK if @a pub is (according to /keys) a current signing key
- */
-int
-TALER_MINT_test_signing_key (const struct TALER_MINT_Keys *keys,
-                             const struct TALER_MintPublicKeyP *pub);
-
-
-/**
- * Obtain the denomination key details from the mint.
- *
- * @param keys the mint's key set
- * @param pk public key of the denomination to lookup
- * @return details about the given denomination key, NULL if the key is not
- * found
- */
-const struct TALER_MINT_DenomPublicKey *
-TALER_MINT_get_denomination_key (const struct TALER_MINT_Keys *keys,
-                                 const struct TALER_DenominationPublicKey *pk);
-
-
-/**
- * Obtain the denomination key details from the mint.
- *
- * @param keys the mint's key set
- * @param hc hash of the public key of the denomination to lookup
- * @return details about the given denomination key
- */
-const struct TALER_MINT_DenomPublicKey *
-TALER_MINT_get_denomination_key_by_hash (const struct TALER_MINT_Keys *keys,
-                                         const struct GNUNET_HashCode *hc);
-
-
-/* *********************  /wire *********************** */
-
-
-/**
- * @brief A Wire format inquiry handle
- */
-struct TALER_MINT_WireHandle;
-
-
-/**
- * Callbacks of this type are used to serve the result of submitting a
- * wire format inquiry request to a mint.
- *
- * The callback is invoked multiple times, once for each supported @a
- * method.  Finally, it is invoked one more time with cls/0/NULL/NULL
- * to indicate the end of the iteration.  If any request fails to
- * generate a valid response from the mint, @a http_status will also
- * be zero and the iteration will also end.  Thus, the iteration
- * always ends with a final call with an @a http_status of 0. If the
- * @a http_status is already 0 on the first call, then the response to
- * the /wire request was invalid.  Later, clients can tell the
- * difference between @a http_status of 0 indicating a failed
- * /wire/method request and a regular end of the iteration by @a
- * method being non-NULL.  If the mint simply correctly asserts that
- * it does not support any methods, @a method will be NULL but the @a
- * http_status will be #MHD_HTTP_OK for the first call (followed by a
- * cls/0/NULL/NULL call to signal the end of the iteration).
- *
- * @param cls closure
- * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful request;
- *                    0 if the mint's reply is bogus (fails to follow the protocol)
- * @param method wire format method supported, i.e. "test" or "sepa", or NULL
- *            if already the /wire request failed.
- * @param obj the received JSON reply, if successful this should be the wire
- *            format details as provided by /wire/METHOD/, or NULL if the
- *            reply was not in JSON format (in this case, the client might
- *            want to do an HTTP request to /wire/METHOD/ with a browser to
- *            provide more information to the user about the @a method).
- */
-typedef void
-(*TALER_MINT_WireResultCallback) (void *cls,
-                                  unsigned int http_status,
-                                  const char *method,
-                                  json_t *obj);
-
-
-/**
- * Obtain information about a mint's wire instructions.
- * A mint may provide wire instructions for creating
- * a reserve.  The wire instructions also indicate
- * which wire formats merchants may use with the mint.
- * This API is typically used by a wallet for wiring
- * funds, and possibly by a merchant to determine
- * supported wire formats.
- *
- * Note that while we return the (main) response verbatim to the
- * caller for further processing, we do already verify that the
- * response is well-formed (i.e. that signatures included in the
- * response are all valid).  If the mint's reply is not well-formed,
- * we return an HTTP status code of zero to @a cb.
- *
- * @param mint the mint handle; the mint must be ready to operate
- * @param wire_cb the callback to call when a reply for this request is available
- * @param wire_cb_cls closure for the above callback
- * @return a handle for this request
- */
-struct TALER_MINT_WireHandle *
-TALER_MINT_wire (struct TALER_MINT_Handle *mint,
-                 TALER_MINT_WireResultCallback wire_cb,
-                 void *wire_cb_cls);
-
-
-/**
- * Cancel a wire information request.  This function cannot be used
- * on a request handle if a response is already served for it.
- *
- * @param wh the wire information request handle
- */
-void
-TALER_MINT_wire_cancel (struct TALER_MINT_WireHandle *wh);
-
-
-/* *********************  /deposit *********************** */
-
-
-/**
- * @brief A Deposit Handle
- */
-struct TALER_MINT_DepositHandle;
-
-
-/**
- * Callbacks of this type are used to serve the result of submitting a
- * deposit permission request to a mint.
- *
- * @param cls closure
- * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful deposit;
- *                    0 if the mint's reply is bogus (fails to follow the protocol)
- * @param obj the received JSON reply, should be kept as proof (and, in case of errors,
- *            be forwarded to the customer)
- */
-typedef void
-(*TALER_MINT_DepositResultCallback) (void *cls,
-                                     unsigned int http_status,
-                                     json_t *obj);
-
-
-/**
- * Submit a deposit permission to the mint and get the mint's
- * response.  This API is typically used by a merchant.  Note that
- * while we return the response verbatim to the caller for further
- * processing, we do already verify that the response is well-formed
- * (i.e. that signatures included in the response are all valid).  If
- * the mint's reply is not well-formed, we return an HTTP status code
- * of zero to @a cb.
- *
- * We also verify that the @a coin_sig is valid for this deposit
- * request, and that the @a ub_sig is a valid signature for @a
- * coin_pub.  Also, the @a mint must be ready to operate (i.e.  have
- * finished processing the /keys reply).  If either check fails, we do
- * NOT initiate the transaction with the mint and instead return NULL.
- *
- * @param mint the mint handle; the mint must be ready to operate
- * @param amount the amount to be deposited
- * @param wire_deadline execution date, until which the merchant would like the mint to settle the balance (advisory, the mint cannot be
- *        forced to settle in the past or upon very short notice, but of course a well-behaved mint will limit aggregation based on the advice received)
- * @param wire_details the merchant’s account details, in a format supported by the mint
- * @param h_contract hash of the contact of the merchant with the customer (further details are never disclosed to the mint)
- * @param coin_pub coin’s public key
- * @param denom_pub denomination key with which the coin is signed
- * @param denom_sig mint’s unblinded signature of the coin
- * @param timestamp timestamp when the contract was finalized, must match approximately the current time of the mint
- * @param transaction_id transaction id for the transaction between merchant and customer
- * @param merchant_pub the public key of the merchant (used to identify the merchant for refund requests)
- * @param refund_deadline date until which the merchant can issue a refund to the customer via the mint (can be zero if refunds are not allowed)
- * @param coin_sig the signature made with purpose #TALER_SIGNATURE_WALLET_COIN_DEPOSIT made by the customer with the coin’s private key.
- * @param cb the callback to call when a reply for this request is available
- * @param cb_cls closure for the above callback
- * @return a handle for this request; NULL if the inputs are invalid (i.e.
- *         signatures fail to verify).  In this case, the callback is not called.
- */
-struct TALER_MINT_DepositHandle *
-TALER_MINT_deposit (struct TALER_MINT_Handle *mint,
-                    const struct TALER_Amount *amount,
-                    struct GNUNET_TIME_Absolute wire_deadline,
-                    json_t *wire_details,
-                    const struct GNUNET_HashCode *h_contract,
-                    const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                    const struct TALER_DenominationSignature *denom_sig,
-                    const struct TALER_DenominationPublicKey *denom_pub,
-                    struct GNUNET_TIME_Absolute timestamp,
-                    uint64_t transaction_id,
-                    const struct TALER_MerchantPublicKeyP *merchant_pub,
-                    struct GNUNET_TIME_Absolute refund_deadline,
-                    const struct TALER_CoinSpendSignatureP *coin_sig,
-                    TALER_MINT_DepositResultCallback cb,
-                    void *cb_cls);
-
-
-/**
- * Cancel a deposit permission request.  This function cannot be used
- * on a request handle if a response is already served for it.
- *
- * @param deposit the deposit permission request handle
- */
-void
-TALER_MINT_deposit_cancel (struct TALER_MINT_DepositHandle *deposit);
-
-
-/* ********************* /reserve/status *********************** */
-
-
-/**
- * @brief A /reserve/status Handle
- */
-struct TALER_MINT_ReserveStatusHandle;
-
-
-/**
- * Ways how a reserve's balance may change.
- */
-enum TALER_MINT_ReserveTransactionType {
-
-  /**
-   * Deposit into the reserve.
-   */
-  TALER_MINT_RTT_DEPOSIT,
-
-  /**
-   * Withdrawal from the reserve.
-   */
-  TALER_MINT_RTT_WITHDRAWAL
-
-};
-
-
-/**
- * @brief Entry in the reserve's transaction history.
- */
-struct TALER_MINT_ReserveHistory
-{
-
-  /**
-   * Type of the transaction.
-   */
-  enum TALER_MINT_ReserveTransactionType type;
-
-  /**
-   * Amount transferred (in or out).
-   */
-  struct TALER_Amount amount;
-
-  /**
-   * Details depending on @e type.
-   */
-  union {
-
-    /**
-     * Transaction details for the incoming transaction.
-     */
-    json_t *wire_in_details;
-
-    /**
-     * Signature authorizing the withdrawal for outgoing transaction.
-     */
-    json_t *out_authorization_sig;
-
-  } details;
-
-};
-
-
-/**
- * Callbacks of this type are used to serve the result of submitting a
- * deposit permission request to a mint.
- *
- * @param cls closure
- * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
- *                    0 if the mint's reply is bogus (fails to follow the protocol)
- * @param[in] json original response in JSON format (useful only for diagnostics)
- * @param balance current balance in the reserve, NULL on error
- * @param history_length number of entries in the transaction history, 0 on error
- * @param history detailed transaction history, NULL on error
- */
-typedef void
-(*TALER_MINT_ReserveStatusResultCallback) (void *cls,
-                                           unsigned int http_status,
-                                           json_t *json,
-                                           const struct TALER_Amount *balance,
-                                           unsigned int history_length,
-                                           const struct TALER_MINT_ReserveHistory *history);
-
-
-/**
- * Submit a request to obtain the transaction history of a reserve
- * from the mint.  Note that while we return the full response to the
- * caller for further processing, we do already verify that the
- * response is well-formed (i.e. that signatures included in the
- * response are all valid and add up to the balance).  If the mint's
- * reply is not well-formed, we return an HTTP status code of zero to
- * @a cb.
- *
- * @param mint the mint handle; the mint must be ready to operate
- * @param reserve_pub public key of the reserve to inspect
- * @param cb the callback to call when a reply for this request is available
- * @param cb_cls closure for the above callback
- * @return a handle for this request; NULL if the inputs are invalid (i.e.
- *         signatures fail to verify).  In this case, the callback is not called.
- */
-struct TALER_MINT_ReserveStatusHandle *
-TALER_MINT_reserve_status (struct TALER_MINT_Handle *mint,
-                           const struct TALER_ReservePublicKeyP *reserve_pub,
-                           TALER_MINT_ReserveStatusResultCallback cb,
-                           void *cb_cls);
-
-
-/**
- * Cancel a withdraw status request.  This function cannot be used
- * on a request handle if a response is already served for it.
- *
- * @param wsh the withdraw status request handle
- */
-void
-TALER_MINT_reserve_status_cancel (struct TALER_MINT_ReserveStatusHandle *wsh);
-
-
-/* ********************* /reserve/withdraw *********************** */
-
-
-/**
- * @brief A /reserve/withdraw Handle
- */
-struct TALER_MINT_ReserveWithdrawHandle;
-
-
-/**
- * Callbacks of this type are used to serve the result of submitting a
- * deposit permission request to a mint.
- *
- * @param cls closure
- * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
- *                    0 if the mint's reply is bogus (fails to follow the protocol)
- * @param sig signature over the coin, NULL on error
- * @param full_response full response from the mint (for logging, in case of errors)
- */
-typedef void
-(*TALER_MINT_ReserveWithdrawResultCallback) (void *cls,
-                                             unsigned int http_status,
-                                             const struct TALER_DenominationSignature *sig,
-                                             json_t *full_response);
-
-
-/**
- * Withdraw a coin from the mint using a /reserve/withdraw request.  This
- * API is typically used by a wallet.  Note that to ensure that no
- * money is lost in case of hardware failures, the caller must have
- * committed (most of) the arguments to disk before calling, and be
- * ready to repeat the request with the same arguments in case of
- * failures.
- *
- * @param mint the mint handle; the mint must be ready to operate
- * @param pk kind of coin to create
- * @param reserve_priv private key of the reserve to withdraw from
- * @param coin_priv where to store the coin's private key,
- *        caller must have committed this value to disk before the call (with @a pk)
- * @param blinding_key where to store the coin's blinding key
- *        caller must have committed this value to disk before the call (with @a pk)
- * @param res_cb the callback to call when the final result for this request is available
- * @param res_cb_cls closure for @a res_cb
- * @return NULL
- *         if the inputs are invalid (i.e. denomination key not with this mint).
- *         In this case, the callback is not called.
- */
-struct TALER_MINT_ReserveWithdrawHandle *
-TALER_MINT_reserve_withdraw (struct TALER_MINT_Handle *mint,
-                             const struct TALER_MINT_DenomPublicKey *pk,
-                             const struct TALER_ReservePrivateKeyP *reserve_priv,
-                             const struct TALER_CoinSpendPrivateKeyP *coin_priv,
-                             const struct TALER_DenominationBlindingKey *blinding_key,
-                             TALER_MINT_ReserveWithdrawResultCallback res_cb,
-                             void *res_cb_cls);
-
-
-/**
- * Cancel a withdraw status request.  This function cannot be used
- * on a request handle if a response is already served for it.
- *
- * @param sign the withdraw sign request handle
- */
-void
-TALER_MINT_reserve_withdraw_cancel (struct TALER_MINT_ReserveWithdrawHandle *sign);
-
-
-/* ********************* /refresh/melt+reveal ***************************** */
-
-
-/**
- * Melt (partially spent) coins to obtain fresh coins that are
- * unlinkable to the original coin(s).  Note that melting more
- * than one coin in a single request will make those coins linkable,
- * so the safest operation only melts one coin at a time.
- *
- * This API is typically used by a wallet.  Note that to ensure that
- * no money is lost in case of hardware failures, is operation does
- * not actually initiate the request. Instead, it generates a buffer
- * which the caller must store before proceeding with the actual call
- * to #TALER_MINT_refresh_melt() that will generate the request.
- *
- * This function does verify that the given request data is internally
- * consistent.  However, the @a melts_sigs are only verified if @a
- * check_sigs is set to #GNUNET_YES, as this may be relatively
- * expensive and should be redundant.
- *
- * Aside from some non-trivial cryptographic operations that might
- * take a bit of CPU time to complete, this function returns
- * its result immediately and does not start any asynchronous
- * processing.  This function is also thread-safe.
- *
- * @param num_melts number of coins that are being melted (typically 1)
- * @param melt_privs array of @a num_melts private keys of the coins to melt
- * @param melt_amounts array of @a num_melts amounts specifying how much
- *                     each coin will contribute to the melt (including fee)
- * @param melt_sigs array of @a num_melts signatures affirming the
- *                   validity of the public keys corresponding to the
- *                   @a melt_privs private keys
- * @param melt_pks array of @a num_melts denomination key information
- *                   records corresponding to the @a melt_sigs
- *                   validity of the keys
- * @param check_sigs verify the validity of the signatures of @a melt_sigs
- * @param fresh_pks_len length of the @a pks array
- * @param fresh_pks array of @a pks_len denominations of fresh coins to create
- * @param[out] res_size set to the size of the return value, or 0 on error
- * @return NULL
- *         if the inputs are invalid (i.e. denomination key not with this mint).
- *         Otherwise, pointer to a buffer of @a res_size to store persistently
- *         before proceeding to #TALER_MINT_refresh_melt().
- *         Non-null results should be freed using #GNUNET_free().
- */
-char *
-TALER_MINT_refresh_prepare (unsigned int num_melts,
-                            const struct TALER_CoinSpendPrivateKeyP *melt_privs,
-                            const struct TALER_Amount *melt_amounts,
-                            const struct TALER_DenominationSignature *melt_sigs,
-                            const struct TALER_MINT_DenomPublicKey *melt_pks,
-                            int check_sigs,
-                            unsigned int fresh_pks_len,
-                            const struct TALER_MINT_DenomPublicKey *fresh_pks,
-                            size_t *res_size);
-
-
-/* ********************* /refresh/melt ***************************** */
-
-/**
- * @brief A /refresh/melt Handle
- */
-struct TALER_MINT_RefreshMeltHandle;
-
-
-/**
- * Callbacks of this type are used to notify the application about the
- * result of the /refresh/melt stage.  If successful, the @a noreveal_index
- * should be committed to disk prior to proceeding #TALER_MINT_refresh_reveal().
- *
- * @param cls closure
- * @param http_status HTTP response code, never #MHD_HTTP_OK (200) as for successful intermediate response this callback is skipped.
- *                    0 if the mint's reply is bogus (fails to follow the protocol)
- * @param noreveal_index choice by the mint in the cut-and-choose protocol,
- *                    UINT16_MAX on error
- * @param full_response full response from the mint (for logging, in case of errors)
- */
-typedef void
-(*TALER_MINT_RefreshMeltCallback) (void *cls,
-                                   unsigned int http_status,
-                                   uint16_t noreveal_index,
-                                   json_t *full_response);
-
-
-/**
- * Submit a melt request to the mint and get the mint's
- * response.
- *
- * This API is typically used by a wallet.  Note that to ensure that
- * no money is lost in case of hardware failures, the provided
- * argument should have been constructed using
- * #TALER_MINT_refresh_prepare and committed to persistent storage
- * prior to calling this function.
- *
- * @param mint the mint handle; the mint must be ready to operate
- * @param refresh_data_length size of the @a refresh_data (returned
- *        in the `res_size` argument from #TALER_MINT_refresh_prepare())
- * @param refresh_data the refresh data as returned from
-          #TALER_MINT_refresh_prepare())
- * @param melt_cb the callback to call with the result
- * @param melt_cb_cls closure for @a melt_cb
- * @return a handle for this request; NULL if the argument was invalid.
- *         In this case, neither callback will be called.
- */
-struct TALER_MINT_RefreshMeltHandle *
-TALER_MINT_refresh_melt (struct TALER_MINT_Handle *mint,
-                         size_t refresh_data_length,
-                         const char *refresh_data,
-                         TALER_MINT_RefreshMeltCallback melt_cb,
-                         void *melt_cb_cls);
-
-
-/**
- * Cancel a refresh melt request.  This function cannot be used
- * on a request handle if the callback was already invoked.
- *
- * @param rmh the refresh handle
- */
-void
-TALER_MINT_refresh_melt_cancel (struct TALER_MINT_RefreshMeltHandle *rmh);
-
-
-/* ********************* /refresh/reveal ***************************** */
-
-
-/**
- * Callbacks of this type are used to return the final result of
- * submitting a refresh request to a mint.  If the operation was
- * successful, this function returns the signatures over the coins
- * that were remelted.  The @a coin_privs and @a sigs arrays give the
- * coins in the same order (and should have the same length) in which
- * the original request specified the respective denomination keys.
- *
- * @param cls closure
- * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
- *                    0 if the mint's reply is bogus (fails to follow the protocol)
- * @param num_coins number of fresh coins created, length of the @a sigs and @a coin_privs arrays, 0 if the operation failed
- * @param coin_privs array of @a num_coins private keys for the coins that were created, NULL on error
- * @param sigs array of signature over @a num_coins coins, NULL on error
- * @param full_response full response from the mint (for logging, in case of errors)
- */
-typedef void
-(*TALER_MINT_RefreshRevealCallback) (void *cls,
-                                     unsigned int http_status,
-
-                                     unsigned int num_coins,
-                                     const struct TALER_CoinSpendPrivateKeyP *coin_privs,
-                                     const struct TALER_DenominationSignature *sigs,
-                                     json_t *full_response);
-
-
-/**
- * @brief A /refresh/reveal Handle
- */
-struct TALER_MINT_RefreshRevealHandle;
-
-
-/**
- * Submit a /refresh/reval request to the mint and get the mint's
- * response.
- *
- * This API is typically used by a wallet.  Note that to ensure that
- * no money is lost in case of hardware failures, the provided
- * arguments should have been committed to persistent storage
- * prior to calling this function.
- *
- * @param mint the mint handle; the mint must be ready to operate
- * @param refresh_data_length size of the @a refresh_data (returned
- *        in the `res_size` argument from #TALER_MINT_refresh_prepare())
- * @param refresh_data the refresh data as returned from
-          #TALER_MINT_refresh_prepare())
- * @param noreveal_index response from the mint to the
- *        #TALER_MINT_refresh_melt() invocation
- * @param reveal_cb the callback to call with the final result of the
- *        refresh operation
- * @param reveal_cb_cls closure for the above callback
- * @return a handle for this request; NULL if the argument was invalid.
- *         In this case, neither callback will be called.
- */
-struct TALER_MINT_RefreshRevealHandle *
-TALER_MINT_refresh_reveal (struct TALER_MINT_Handle *mint,
-                           size_t refresh_data_length,
-                           const char *refresh_data,
-                           uint16_t noreveal_index,
-                           TALER_MINT_RefreshRevealCallback reveal_cb,
-                           void *reveal_cb_cls);
-
-
-/**
- * Cancel a refresh reveal request.  This function cannot be used
- * on a request handle if the callback was already invoked.
- *
- * @param rrh the refresh reval handle
- */
-void
-TALER_MINT_refresh_reveal_cancel (struct TALER_MINT_RefreshRevealHandle *rrh);
-
-
-/* ********************* /refresh/link ***************************** */
-
-
-/**
- * @brief A /refresh/link Handle
- */
-struct TALER_MINT_RefreshLinkHandle;
-
-
-/**
- * Callbacks of this type are used to return the final result of
- * submitting a /refresh/link request to a mint.  If the operation was
- * successful, this function returns the signatures over the coins
- * that were created when the original coin was melted.
- *
- * @param cls closure
- * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
- *                    0 if the mint's reply is bogus (fails to follow the protocol)
- * @param num_coins number of fresh coins created, length of the @a sigs and @a coin_privs arrays, 0 if the operation failed
- * @param coin_privs array of @a num_coins private keys for the coins that were created, NULL on error
- * @param sigs array of signature over @a num_coins coins, NULL on error
- * @param pubs array of public keys for the @a sigs, NULL on error
- * @param full_response full response from the mint (for logging, in case of errors)
- */
-typedef void
-(*TALER_MINT_RefreshLinkCallback) (void *cls,
-                                   unsigned int http_status,
-                                   unsigned int num_coins,
-                                   const struct TALER_CoinSpendPrivateKeyP *coin_privs,
-                                   const struct TALER_DenominationSignature *sigs,
-                                   const struct TALER_DenominationPublicKey *pubs,
-                                   json_t *full_response);
-
-
-/**
- * Submit a link request to the mint and get the mint's response.
- *
- * This API is typically not used by anyone, it is more a threat
- * against those trying to receive a funds transfer by abusing the
- * /refresh protocol.
- *
- * @param mint the mint handle; the mint must be ready to operate
- * @param coin_priv private key to request link data for
- * @param link_cb the callback to call with the useful result of the
- *        refresh operation the @a coin_priv was involved in (if any)
- * @param link_cb_cls closure for @a link_cb
- * @return a handle for this request
- */
-struct TALER_MINT_RefreshLinkHandle *
-TALER_MINT_refresh_link (struct TALER_MINT_Handle *mint,
-                         const struct TALER_CoinSpendPrivateKeyP *coin_priv,
-                         TALER_MINT_RefreshLinkCallback link_cb,
-                         void *link_cb_cls);
-
-
-/**
- * Cancel a refresh link request.  This function cannot be used
- * on a request handle if the callback was already invoked.
- *
- * @param rlh the refresh link handle
- */
-void
-TALER_MINT_refresh_link_cancel (struct TALER_MINT_RefreshLinkHandle *rlh);
-
-
-/* ********************* /admin/add/incoming *********************** */
-
-
-/**
- * @brief A /admin/add/incoming Handle
- */
-struct TALER_MINT_AdminAddIncomingHandle;
-
-
-/**
- * Callbacks of this type are used to serve the result of submitting
- * information about an incoming transaction to a mint.
- *
- * @param cls closure
- * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
- *                    0 if the mint's reply is bogus (fails to follow the protocol)
- * @param full_response full response from the mint (for logging, in case of errors)
- */
-typedef void
-(*TALER_MINT_AdminAddIncomingResultCallback) (void *cls,
-                                              unsigned int http_status,
-                                              json_t *full_response);
-
-
-/**
- * Notify the mint that we have received an incoming transaction
- * which fills a reserve.  Note that this API is an administrative
- * API and thus not accessible to typical mint clients, but only
- * to the operators of the mint.
- *
- * @param mint the mint handle; the mint must be ready to operate
- * @param reserve_pub public key of the reserve
- * @param amount amount that was deposited
- * @param execution_date when did we receive the amount
- * @param wire wire details
- * @param res_cb the callback to call when the final result for this request is available
- * @param res_cb_cls closure for the above callback
- * @return NULL
- *         if the inputs are invalid (i.e. invalid amount).
- *         In this case, the callback is not called.
- */
-struct TALER_MINT_AdminAddIncomingHandle *
-TALER_MINT_admin_add_incoming (struct TALER_MINT_Handle *mint,
-                               const struct TALER_ReservePublicKeyP *reserve_pub,
-                               const struct TALER_Amount *amount,
-                               struct GNUNET_TIME_Absolute execution_date,
-                               const json_t *wire,
-                               TALER_MINT_AdminAddIncomingResultCallback res_cb,
-                               void *res_cb_cls);
-
-
-/**
- * Cancel an add incoming.  This function cannot be used on a request
- * handle if a response is already served for it.
- *
- * @param aai the admin add incoming request handle
- */
-void
-TALER_MINT_admin_add_incoming_cancel (struct TALER_MINT_AdminAddIncomingHandle *aai);
-
-
-/* ********************* /wire/deposits *********************** */
-
-/**
- * @brief A /wire/deposits Handle
- */
-struct TALER_MINT_WireDepositsHandle;
-
-
-/**
- * Details for one of the /deposit operations that the
- * mint combined into a single wire transfer.
- */
-struct TALER_WireDepositDetails
-{
-  /**
-   * Hash of the contract.
-   */
-  struct GNUNET_HashCode h_contract;
-
-  /**
-   * Which coin was deposited?
-   */
-  struct TALER_CoinSpendPublicKeyP coin_pub;
-
-  /**
-   * Value of the deposit (including fee).
-   */
-  struct TALER_Amount coin_value;
-
-  /**
-   * Fee charged by the mint for the deposit.
-   */
-  struct TALER_Amount coin_fee;
-
-  /**
-   * Merchant's transaction identifier.
-   */
-  uint64_t transaction_id;
-
-};
-
-
-/**
- * Function called with detailed wire transfer data, including all
- * of the coin transactions that were combined into the wire transfer.
- *
- * @param cls closure
- * @param http_status HTTP status code we got, 0 on mint protocol violation
- * @param json original json reply (may include signatures, those have then been
- *        validated already)
- * @param wtid extracted wire transfer identifier, or NULL if the mint could
- *             not provide any (set only if @a http_status is #MHD_HTTP_OK)
- * @param total_amount total amount of the wire transfer, or NULL if the mint could
- *             not provide any @a wtid (set only if @a http_status is #MHD_HTTP_OK)
- * @param details_length length of the @a details array
- * @param details array with details about the combined transactions
- */
-typedef void
-(*TALER_MINT_WireDepositsCallback)(void *cls,
-                                   unsigned int http_status,
-                                   json_t *json,
-                                   const struct GNUNET_HashCode *h_wire,
-                                   const struct TALER_Amount *total_amount,
-                                   unsigned int details_length,
-                                   const struct TALER_WireDepositDetails *details);
-
-
-/**
- * Query the mint about which transactions were combined
- * to create a wire transfer.
- *
- * @param mint mint to query
- * @param wtid raw wire transfer identifier to get information about
- * @param cb callback to call
- * @param cb_cls closure for @a cb
- * @return handle to cancel operation
- */
-struct TALER_MINT_WireDepositsHandle *
-TALER_MINT_wire_deposits (struct TALER_MINT_Handle *mint,
-                          const struct TALER_WireTransferIdentifierRawP *wtid,
-                          TALER_MINT_WireDepositsCallback cb,
-                          void *cb_cls);
-
-
-/**
- * Cancel wire deposits request.  This function cannot be used on a request
- * handle if a response is already served for it.
- *
- * @param wdh the wire deposits request handle
- */
-void
-TALER_MINT_wire_deposits_cancel (struct TALER_MINT_WireDepositsHandle *wdh);
-
-
-/* ********************* /deposit/wtid *********************** */
-
-
-/**
- * @brief A /deposit/wtid Handle
- */
-struct TALER_MINT_DepositWtidHandle;
-
-
-/**
- * Function called with detailed wire transfer data.
- *
- * @param cls closure
- * @param http_status HTTP status code we got, 0 on mint protocol violation
- * @param json original json reply (may include signatures, those have then been
- *        validated already)
- * @param wtid wire transfer identifier used by the mint, NULL if mint did not
- *                  yet execute the transaction
- * @param execution_time actual or planned execution time for the wire transfer
- * @param coin_contribution contribution to the @a total_amount of the deposited coin (may be NULL)
- */
-typedef void
-(*TALER_MINT_DepositWtidCallback)(void *cls,
-                                  unsigned int http_status,
-                                  json_t *json,
-                                  const struct TALER_WireTransferIdentifierRawP *wtid,
-                                  struct GNUNET_TIME_Absolute execution_time,
-                                  const struct TALER_Amount *coin_contribution);
-
-
-/**
- * Obtain the wire transfer details for a given deposit.
- *
- * @param mint the mint to query
- * @param merchant_priv the merchant's private key
- * @param h_wire hash of merchant's wire transfer details
- * @param h_contract hash of the contract
- * @param coin_pub public key of the coin
- * @param transaction_id transaction identifier
- * @param cb function to call with the result
- * @param cb_cls closure for @a cb
- * @return handle to abort request
- */
-struct TALER_MINT_DepositWtidHandle *
-TALER_MINT_deposit_wtid (struct TALER_MINT_Handle *mint,
-                         const struct TALER_MerchantPrivateKeyP *merchant_priv,
-                         const struct GNUNET_HashCode *h_wire,
-                         const struct GNUNET_HashCode *h_contract,
-                         const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                         uint64_t transaction_id,
-                         TALER_MINT_DepositWtidCallback cb,
-                         void *cb_cls);
-
-
-/**
- * Cancel deposit wtid request.  This function cannot be used on a request
- * handle if a response is already served for it.
- *
- * @param dwh the wire deposits request handle
- */
-void
-TALER_MINT_deposit_wtid_cancel (struct TALER_MINT_DepositWtidHandle *dwh);
-
-
-#endif  /* _TALER_MINT_SERVICE_H */
diff --git a/src/include/taler_mintdb_lib.h b/src/include/taler_mintdb_lib.h
deleted file mode 100644
index 70e314d9a..000000000
--- a/src/include/taler_mintdb_lib.h
+++ /dev/null
@@ -1,291 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file include/taler_mintdb_lib.h
- * @brief IO operations for the mint's private keys
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#ifndef TALER_MINTDB_LIB_H
-#define TALER_MINTDB_LIB_H
-
-#include "taler_signatures.h"
-
-/**
- * Subdirectroy under the mint's base directory which contains
- * the mint's signing keys.
- */
-#define TALER_MINTDB_DIR_SIGNING_KEYS "signkeys"
-
-/**
- * Subdirectory under the mint's base directory which contains
- * the mint's denomination keys.
- */
-#define TALER_MINTDB_DIR_DENOMINATION_KEYS "denomkeys"
-
-/**
- * Subdirectory under the mint's base directory which contains
- * the mint's auditing information.
- */
-#define TALER_MINTDB_DIR_AUDITORS "auditors"
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * @brief On disk format used for a mint signing key.  Signing keys are used
- * by the mint to affirm its messages, but not to create coins.
- * Includes the private key followed by the public information about
- * the signing key.
- */
-struct TALER_MINTDB_PrivateSigningKeyInformationP
-{
-  /**
-   * Private key part of the mint's signing key.
-   */
-  struct TALER_MintPrivateKeyP signkey_priv;
-
-  /**
-   * Public information about a mint signing key.
-   */
-  struct TALER_MintSigningKeyValidityPS issue;
-};
-
-
-/**
- * Information about a denomination key.
- */
-struct TALER_MINTDB_DenominationKeyInformationP
-{
-
-  /**
-   * Signature over this struct to affirm the validity of the key.
-   */
-  struct TALER_MasterSignatureP signature;
-
-  /**
-   * Signed properties of the denomination key.
-   */
-  struct TALER_DenominationKeyValidityPS properties;
-};
-
-
-GNUNET_NETWORK_STRUCT_END
-
-
-/**
- * @brief All information about a denomination key (which is used to
- * sign coins into existence).
- */
-struct TALER_MINTDB_DenominationKeyIssueInformation
-{
-  /**
-   * The private key of the denomination.  Will be NULL if the private
-   * key is not available (this is the case after the key has expired
-   * for signing coins, but is still valid for depositing coins).
-   */
-  struct TALER_DenominationPrivateKey denom_priv;
-
-  /**
-   * Decoded denomination public key (the hash of it is in
-   * @e issue, but we sometimes need the full public key as well).
-   */
-  struct TALER_DenominationPublicKey denom_pub;
-
-  /**
-   * Signed public information about a denomination key.
-   */
-  struct TALER_MINTDB_DenominationKeyInformationP issue;
-};
-
-
-/**
- * @brief Iterator over signing keys.
- *
- * @param cls closure
- * @param filename name of the file the key came from
- * @param ski the sign key
- * @return #GNUNET_OK to continue to iterate,
- *  #GNUNET_NO to stop iteration with no error,
- *  #GNUNET_SYSERR to abort iteration with error!
- */
-typedef int
-(*TALER_MINTDB_SigningKeyIterator)(void *cls,
-                                   const char *filename,
-                                   const struct TALER_MINTDB_PrivateSigningKeyInformationP *ski);
-
-
-/**
- * Call @a it for each signing key found in the @a mint_base_dir.
- *
- * @param mint_base_dir base directory for the mint,
- *                      the signing keys must be in the #TALER_MINTDB_DIR_SIGNING_KEYS
- *                      subdirectory
- * @param it function to call on each signing key
- * @param it_cls closure for @a it
- * @return number of files found (may not match
- *         number of keys given to @a it as malformed
- *         files are simply skipped), -1 on error
- */
-int
-TALER_MINTDB_signing_keys_iterate (const char *mint_base_dir,
-                                   TALER_MINTDB_SigningKeyIterator it,
-                                   void *it_cls);
-
-
-
-/**
- * @brief Iterator over denomination keys.
- *
- * @param cls closure
- * @param dki the denomination key
- * @param alias coin alias
- * @return #GNUNET_OK to continue to iterate,
- *  #GNUNET_NO to stop iteration with no error,
- *  #GNUNET_SYSERR to abort iteration with error!
- */
-typedef int
-(*TALER_MINTDB_DenominationKeyIterator)(void *cls,
-                                        const char *alias,
-                                        const struct TALER_MINTDB_DenominationKeyIssueInformation *dki);
-
-
-/**
- * Call @a it for each denomination key found in the @a mint_base_dir.
- *
- * @param mint_base_dir base directory for the mint,
- *                      the signing keys must be in the #TALER_MINTDB_DIR_DENOMINATION_KEYS
- *                      subdirectory
- * @param it function to call on each denomination key found
- * @param it_cls closure for @a it
- * @return -1 on error, 0 if no files were found, otherwise
- *         a positive number (however, even with a positive
- *         number it is possible that @a it was never called
- *         as maybe none of the files were well-formed)
- */
-int
-TALER_MINTDB_denomination_keys_iterate (const char *mint_base_dir,
-                                        TALER_MINTDB_DenominationKeyIterator it,
-                                        void *it_cls);
-
-
-/**
- * Exports a denomination key to the given file.
- *
- * @param filename the file where to write the denomination key
- * @param dki the denomination key
- * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure.
- */
-int
-TALER_MINTDB_denomination_key_write (const char *filename,
-                                     const struct TALER_MINTDB_DenominationKeyIssueInformation *dki);
-
-
-/**
- * Import a denomination key from the given file.
- *
- * @param filename the file to import the key from
- * @param[out] dki set to the imported denomination key
- * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
- */
-int
-TALER_MINTDB_denomination_key_read (const char *filename,
-                                    struct TALER_MINTDB_DenominationKeyIssueInformation *dki);
-
-
-/**
- * @brief Iterator over auditor information.
- *
- * @param cls closure
- * @param apub the auditor's public key
- * @param mpub the mint's public key (as expected by the auditor)
- * @param dki_len length of @a asig and @a dki arrays
- * @param asigs array of the auditor's signatures over the @a dks, of length @a dki_len
- * @param dki array of denomination coin data signed by the auditor, of length @a dki_len
- * @return #GNUNET_OK to continue to iterate,
- *  #GNUNET_NO to stop iteration with no error,
- *  #GNUNET_SYSERR to abort iteration with error!
- */
-typedef int
-(*TALER_MINTDB_AuditorIterator)(void *cls,
-                                const struct TALER_AuditorPublicKeyP *apub,
-                                const struct TALER_MasterPublicKeyP *mpub,
-                                unsigned int dki_len,
-                                const struct TALER_AuditorSignatureP *asigs,
-                                const struct TALER_DenominationKeyValidityPS *dki);
-
-
-/**
- * Call @a it with information for each auditor found in the @a mint_base_dir.
- *
- * @param mint_base_dir base directory for the mint,
- *                      the signing keys must be in the #TALER_MINTDB_DIR_DENOMINATION_KEYS
- *                      subdirectory
- * @param it function to call with auditor information
- * @param it_cls closure for @a it
- * @return -1 on error, 0 if no files were found, otherwise
- *         a positive number (however, even with a positive
- *         number it is possible that @a it was never called
- *         as maybe none of the files were well-formed)
- */
-int
-TALER_MINTDB_auditor_iterate (const char *mint_base_dir,
-                              TALER_MINTDB_AuditorIterator it,
-                              void *it_cls);
-
-
-/**
- * Write auditor information to the given file.
- *
- * @param filename the file where to write the auditor information to
- * @param apub the auditor's public key
- * @param asigs the auditor's signatures, array of length @a dki_len
- * @param mpub the mint's public key (as expected by the auditor)
- * @param dki_len length of @a dki and @a asigs arrays
- * @param dki array of denomination coin data signed by the auditor
- * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure.
- */
-int
-TALER_MINTDB_auditor_write (const char *filename,
-                            const struct TALER_AuditorPublicKeyP *apub,
-                            const struct TALER_AuditorSignatureP *asigs,
-                            const struct TALER_MasterPublicKeyP *mpub,
-                            unsigned int dki_len,
-                            const struct TALER_DenominationKeyValidityPS *dki);
-
-
-/**
- * Initialize the plugin.
- *
- * @param cfg configuration to use
- * @return NULL on failure
- */
-struct TALER_MINTDB_Plugin *
-TALER_MINTDB_plugin_load (const struct GNUNET_CONFIGURATION_Handle *cfg);
-
-
-/**
- * Shutdown the plugin.
- *
- * @param plugin plugin to unload
- */
-void
-TALER_MINTDB_plugin_unload (struct TALER_MINTDB_Plugin *plugin);
-
-
-
-#endif
diff --git a/src/include/taler_mintdb_plugin.h b/src/include/taler_mintdb_plugin.h
deleted file mode 100644
index b65b3e4f7..000000000
--- a/src/include/taler_mintdb_plugin.h
+++ /dev/null
@@ -1,1431 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file include/taler_mintdb_plugin.h
- * @brief Low-level (statement-level) database access for the mint
- * @author Florian Dold
- * @author Christian Grothoff
- */
-#ifndef TALER_MINTDB_PLUGIN_H
-#define TALER_MINTDB_PLUGIN_H
-
-#include <gnunet/gnunet_util_lib.h>
-#include "taler_mintdb_lib.h"
-
-
-/**
- * @brief Information we keep on bank transfer(s) that established a reserve.
- */
-struct TALER_MINTDB_BankTransfer
-{
-
-  /**
-   * Public key of the reserve that was filled.
-   */
-  struct TALER_ReservePublicKeyP reserve_pub;
-
-  /**
-   * Amount that was transferred to the mint.
-   */
-  struct TALER_Amount amount;
-
-  /**
-   * When did the mint receive the incoming transaction?
-   * (This is the execution date of the mint's database,
-   * the execution date of the bank should be in @e wire).
-   */
-  struct GNUNET_TIME_Absolute execution_date;
-
-  /**
-   * Detailed wire information about the transaction.
-   */
-  json_t *wire;
-
-};
-
-
-/**
- * @brief A summary of a Reserve
- */
-struct TALER_MINTDB_Reserve
-{
-  /**
-   * The reserve's public key.  This uniquely identifies the reserve
-   */
-  struct TALER_ReservePublicKeyP pub;
-
-  /**
-   * The balance amount existing in the reserve
-   */
-  struct TALER_Amount balance;
-
-  /**
-   * The expiration date of this reserve
-   */
-  struct GNUNET_TIME_Absolute expiry;
-};
-
-
-/**
- * @brief Information we keep for a withdrawn coin to reproduce
- * the /withdraw operation if needed, and to have proof
- * that a reserve was drained by this amount.
- */
-struct TALER_MINTDB_CollectableBlindcoin
-{
-
-  /**
-   * Our signature over the (blinded) coin.
-   */
-  struct TALER_DenominationSignature sig;
-
-  /**
-   * Denomination key (which coin was generated).
-   */
-  struct TALER_DenominationPublicKey denom_pub;
-
-  /**
-   * Value of the coin being minted (matching the denomination key)
-   * plus the transaction fee.  We include this in what is being
-   * signed so that we can verify a reserve's remaining total balance
-   * without needing to access the respective denomination key
-   * information each time.
-   */
-  struct TALER_Amount amount_with_fee;
-
-  /**
-   * Withdrawl fee charged by the mint.  This must match the Mint's
-   * denomination key's withdrawl fee.  If the client puts in an
-   * invalid withdrawl fee (too high or too low) that does not match
-   * the Mint's denomination key, the withdraw operation is invalid
-   * and will be rejected by the mint.  The @e amount_with_fee minus
-   * the @e withdraw_fee is must match the value of the generated
-   * coin.  We include this in what is being signed so that we can
-   * verify a mint's accounting without needing to access the
-   * respective denomination key information each time.
-   */
-  struct TALER_Amount withdraw_fee;
-
-  /**
-   * Public key of the reserve that was drained.
-   */
-  struct TALER_ReservePublicKeyP reserve_pub;
-
-  /**
-   * Hash over the blinded message, needed to verify
-   * the @e reserve_sig.
-   */
-  struct GNUNET_HashCode h_coin_envelope;
-
-  /**
-   * Signature confirming the withdrawl, matching @e reserve_pub,
-   * @e denom_pub and @e h_coin_envelope.
-   */
-  struct TALER_ReserveSignatureP reserve_sig;
-};
-
-
-
-/**
- * @brief Types of operations on a reserved.
- */
-enum TALER_MINTDB_ReserveOperation
-{
-  /**
-   * Money was deposited into the reserve via a bank transfer.
-   */
-  TALER_MINTDB_RO_BANK_TO_MINT = 0,
-
-  /**
-   * A Coin was withdrawn from the reserve using /withdraw.
-   */
-  TALER_MINTDB_RO_WITHDRAW_COIN = 1
-};
-
-
-/**
- * @brief Reserve history as a linked list.  Lists all of the transactions
- * associated with this reserve (such as the bank transfers that
- * established the reserve and all /withdraw operations we have done
- * since).
- */
-struct TALER_MINTDB_ReserveHistory
-{
-
-  /**
-   * Next entry in the reserve history.
-   */
-  struct TALER_MINTDB_ReserveHistory *next;
-
-  /**
-   * Type of the event, determins @e details.
-   */
-  enum TALER_MINTDB_ReserveOperation type;
-
-  /**
-   * Details of the operation, depending on @e type.
-   */
-  union
-  {
-
-    /**
-     * Details about a bank transfer to the mint.
-     */
-    struct TALER_MINTDB_BankTransfer *bank;
-
-    /**
-     * Details about a /withdraw operation.
-     */
-    struct TALER_MINTDB_CollectableBlindcoin *withdraw;
-
-  } details;
-
-};
-
-
-/**
- * @brief Specification for a /deposit operation.  The combination of
- * the coin's public key, the merchant's public key and the
- * transaction ID must be unique.  While a coin can (theoretically) be
- * deposited at the same merchant twice (with partial spending), the
- * merchant must either use a different public key or a different
- * transaction ID for the two transactions.  The same coin must not
- * be used twice at the same merchant for the same transaction
- * (as determined by transaction ID).  (Note: we might want to
- * fix #3819 and include at least h_contract as well.)
- */
-struct TALER_MINTDB_Deposit
-{
-  /**
-   * Information about the coin that is being deposited.
-   */
-  struct TALER_CoinPublicInfo coin;
-
-  /**
-   * ECDSA signature affirming that the customer intends
-   * this coin to be deposited at the merchant identified
-   * by @e h_wire in relation to the contract identified
-   * by @e h_contract.
-   */
-  struct TALER_CoinSpendSignatureP csig;
-
-  /**
-   * Public key of the merchant.  Enables later identification
-   * of the merchant in case of a need to rollback transactions.
-   */
-  struct TALER_MerchantPublicKeyP merchant_pub;
-
-  /**
-   * Hash over the contract between merchant and customer
-   * (remains unknown to the Mint).
-   */
-  struct GNUNET_HashCode h_contract;
-
-  /**
-   * Hash of the (canonical) representation of @e wire, used
-   * to check the signature on the request.  Generated by
-   * the mint from the detailed wire data provided by the
-   * merchant.
-   */
-  struct GNUNET_HashCode h_wire;
-
-  /**
-   * Detailed wire information for executing the transaction.
-   */
-  json_t *wire;
-
-  /**
-   * Merchant-generated transaction ID to detect duplicate
-   * transactions.
-   */
-  uint64_t transaction_id;
-
-  /**
-   * Time when this request was generated.  Used, for example, to
-   * assess when (roughly) the income was achieved for tax purposes.
-   * Note that the Mint will only check that the timestamp is not "too
-   * far" into the future (i.e. several days).  The fact that the
-   * timestamp falls within the validity period of the coin's
-   * denomination key is irrelevant for the validity of the deposit
-   * request, as obviously the customer and merchant could conspire to
-   * set any timestamp.  Also, the Mint must accept very old deposit
-   * requests, as the merchant might have been unable to transmit the
-   * deposit request in a timely fashion (so back-dating is not
-   * prevented).
-   */
-  struct GNUNET_TIME_Absolute timestamp;
-
-  /**
-   * How much time does the merchant have to issue a refund request?
-   * Zero if refunds are not allowed.  After this time, the coin
-   * cannot be refunded.
-   */
-  struct GNUNET_TIME_Absolute refund_deadline;
-
-  /**
-   * How much time does the merchant have to execute the wire transfer?
-   * This time is advisory for aggregating transactions, not a hard
-   * constraint (as the merchant can theoretically pick any time,
-   * including one in the past).
-   */
-  struct GNUNET_TIME_Absolute wire_deadline;
-
-  /**
-   * Fraction of the coin's remaining value to be deposited, including
-   * depositing fee (if any).  The coin is identified by @e coin_pub.
-   */
-  struct TALER_Amount amount_with_fee;
-
-  /**
-   * Depositing fee.
-   */
-  struct TALER_Amount deposit_fee;
-
-};
-
-
-/**
- * @brief Global information for a refreshing session.  Includes
- * dimensions of the operation, security parameters and
- * client signatures from "/refresh/melt" and "/refresh/commit".
- */
-struct TALER_MINTDB_RefreshSession
-{
-
-  /**
-   * Number of coins we are melting.
-   */
-  uint16_t num_oldcoins;
-
-  /**
-   * Number of new coins we are creating.
-   */
-  uint16_t num_newcoins;
-
-  /**
-   * Index (smaller #TALER_CNC_KAPPA) which the mint has chosen to not
-   * have revealed during cut and choose.
-   */
-  uint16_t noreveal_index;
-
-};
-
-
-/**
- * @brief Specification for coin in a /refresh/melt operation.
- */
-struct TALER_MINTDB_RefreshMelt
-{
-  /**
-   * Information about the coin that is being melted.
-   */
-  struct TALER_CoinPublicInfo coin;
-
-  /**
-   * Signature over the melting operation.
-   */
-  struct TALER_CoinSpendSignatureP coin_sig;
-
-  /**
-   * Hash of the refresh session this coin is melted into.
-   */
-  struct GNUNET_HashCode session_hash;
-
-  /**
-   * How much value is being melted?  This amount includes the fees,
-   * so the final amount contributed to the melt is this value minus
-   * the fee for melting the coin.  We include the fee in what is
-   * being signed so that we can verify a reserve's remaining total
-   * balance without needing to access the respective denomination key
-   * information each time.
-   */
-  struct TALER_Amount amount_with_fee;
-
-  /**
-   * Melting fee charged by the mint.  This must match the Mint's
-   * denomination key's melting fee.  If the client puts in an invalid
-   * melting fee (too high or too low) that does not match the Mint's
-   * denomination key, the melting operation is invalid and will be
-   * rejected by the mint.  The @e amount_with_fee minus the @e
-   * melt_fee is the amount that will be credited to the melting
-   * session.
-   */
-  struct TALER_Amount melt_fee;
-
-};
-
-
-/**
- * @brief We have as many `struct TALER_MINTDB_RefreshCommitCoin` as there are new
- * coins being created by the refresh (for each of the #TALER_CNC_KAPPA
- * sets).  These are the coins we ask the mint to sign if the
- * respective set is selected.
- */
-struct TALER_MINTDB_RefreshCommitCoin
-{
-
-  /**
-   * Encrypted data allowing those able to decrypt it to derive
-   * the private keys of the new coins created by the refresh.
-   */
-  struct TALER_RefreshLinkEncrypted *refresh_link;
-
-  /**
-   * Blinded message to be signed (in envelope), with @e coin_env_size bytes.
-   */
-  char *coin_ev;
-
-  /**
-   * Number of bytes in @e coin_ev.
-   */
-  size_t coin_ev_size;
-
-};
-
-
-/**
- * @brief Linked list of refresh information linked to a coin.
- */
-struct TALER_MINTDB_LinkDataList
-{
-  /**
-   * Information is stored in a NULL-terminated linked list.
-   */
-  struct TALER_MINTDB_LinkDataList *next;
-
-  /**
-   * Link data, used to recover the private key of the coin
-   * by the owner of the old coin.
-   */
-  struct TALER_RefreshLinkEncrypted *link_data_enc;
-
-  /**
-   * Denomination public key, determines the value of the coin.
-   */
-  struct TALER_DenominationPublicKey denom_pub;
-
-  /**
-   * Signature over the blinded envelope.
-   */
-  struct TALER_DenominationSignature ev_sig;
-};
-
-
-/**
- * @brief Enumeration to classify the different types of transactions
- * that can be done with a coin.
- */
-enum TALER_MINTDB_TransactionType
-{
-  /**
-   * /deposit operation.
-   */
-  TALER_MINTDB_TT_DEPOSIT = 0,
-
-  /**
-   * /refresh/melt operation.
-   */
-  TALER_MINTDB_TT_REFRESH_MELT = 1
-
-};
-
-
-/**
- * @brief List of transactions we performed for a particular coin.
- */
-struct TALER_MINTDB_TransactionList
-{
-
-  /**
-   * Next pointer in the NULL-terminated linked list.
-   */
-  struct TALER_MINTDB_TransactionList *next;
-
-  /**
-   * Type of the transaction, determines what is stored in @e details.
-   */
-  enum TALER_MINTDB_TransactionType type;
-
-  /**
-   * Details about the transaction, depending on @e type.
-   */
-  union
-  {
-
-    /**
-     * Details if transaction was a /deposit operation.
-     */
-    struct TALER_MINTDB_Deposit *deposit;
-
-    /**
-     * Details if transaction was a /refresh/melt operation.
-     */
-    struct TALER_MINTDB_RefreshMelt *melt;
-
-  } details;
-
-};
-
-
-/**
- * @brief All of the information from a /refresh/melt commitment.
- */
-struct TALER_MINTDB_MeltCommitment
-{
-
-  /**
-   * Number of coins we are melting.
-   */
-  uint16_t num_oldcoins;
-
-  /**
-   * Number of new coins we are creating.
-   */
-  uint16_t num_newcoins;
-
-  /**
-   * Array of @e num_oldcoins melt operation details.
-   */
-  struct TALER_MINTDB_RefreshMelt *melts;
-
-  /**
-   * Array of @e num_newcoins denomination keys
-   */
-  struct TALER_DenominationPublicKey *denom_pubs;
-
-  /**
-   * 2D-Array of #TALER_CNC_KAPPA and @e num_newcoins commitments.
-   */
-  struct TALER_MINTDB_RefreshCommitCoin *commit_coins[TALER_CNC_KAPPA];
-
-  /**
-   * 2D-Array of #TALER_CNC_KAPPA and @e new_oldcoins links.
-   */
-  struct TALER_RefreshCommitLinkP *commit_links[TALER_CNC_KAPPA];
-};
-
-
-/**
- * @brief Handle for a database session (per-thread, for transactions).
- */
-struct TALER_MINTDB_Session;
-
-
-/**
- * Function called with details about deposits that
- * have been made, with the goal of executing the
- * corresponding wire transaction.
- *
- * @param cls closure
- * @param rowid unique ID for the deposit in our DB, used for marking
- *              it as 'tiny' or 'done'
- * @param merchant_pub public key of the merchant
- * @param coin_pub public key of the coin
- * @param amount_with_fee amount that was deposited including fee
- * @param deposit_fee amount the mint gets to keep as transaction fees
- * @param transaction_id unique transaction ID chosen by the merchant
- * @param h_contract hash of the contract between merchant and customer
- * @param wire_deadline by which the merchant adviced that he would like the
- *        wire transfer to be executed
- * @param wire wire details for the merchant, NULL from iterate_matching_deposits()
- * @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
- */
-typedef int
-(*TALER_MINTDB_DepositIterator)(void *cls,
-                                unsigned long long rowid,
-                                const struct TALER_MerchantPublicKeyP *merchant_pub,
-                                const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                                const struct TALER_Amount *amount_with_fee,
-                                const struct TALER_Amount *deposit_fee,
-                                uint64_t transaction_id,
-                                const struct GNUNET_HashCode *h_contract,
-                                struct GNUNET_TIME_Absolute wire_deadline,
-                                const json_t *wire);
-
-
-/**
- * Function called with the session hashes and transfer secret
- * information for a given coin.
- *
- * @param cls closure
- * @param session_hash a session the coin was melted in
- * @param transfer_pub public transfer key for the session
- * @param shared_secret_enc set to shared secret for the session
- */
-typedef void
-(*TALER_MINTDB_TransferDataCallback)(void *cls,
-                                     const struct GNUNET_HashCode *session_hash,
-                                     const struct TALER_TransferPublicKeyP *transfer_pub,
-                                     const struct TALER_EncryptedLinkSecretP *shared_secret_enc);
-
-
-/**
- * Function called with the results of the lookup of the
- * wire transfer identifier information.  Only called if
- * we are at least aware of the transaction existing.
- *
- * @param cls closure
- * @param wtid wire transfer identifier, NULL
- *         if the transaction was not yet done
- * @param coin_contribution how much did the coin we asked about
- *        contribute to the total transfer value? (deposit value including fee)
- * @param coin_fee how much did the mint charge for the deposit fee
- * @param execution_time when was the transaction done, or
- *         when we expect it to be done (if @a wtid was NULL)
- */
-typedef void
-(*TALER_MINTDB_DepositWtidCallback)(void *cls,
-				    const struct TALER_WireTransferIdentifierRawP *wtid,
-                                    const struct TALER_Amount *coin_contribution,
-                                    const struct TALER_Amount *coin_fee,
-				    struct GNUNET_TIME_Absolute execution_time);
-
-
-/**
- * Function called with the results of the lookup of the
- * transaction data associated with a wire transfer identifier.
- *
- * @param cls closure
- * @param merchant_pub public key of the merchant (should be same for all callbacks with the same @e cls)
- * @param h_wire hash of wire transfer details of the merchant (should be same for all callbacks with the same @e cls)
- * @param h_contract which contract was this payment about
- * @param transaction_id merchant's transaction ID for the payment
- * @param coin_pub which public key was this payment about
- * @param coin_value amount contributed by this coin in total (with fee)
- * @param coin_fee applicable fee for this coin
- */
-typedef void
-(*TALER_MINTDB_WireTransferDataCallback)(void *cls,
-                                         const struct TALER_MerchantPublicKeyP *merchant_pub,
-                                         const struct GNUNET_HashCode *h_wire,
-                                         const struct GNUNET_HashCode *h_contract,
-                                         uint64_t transaction_id,
-                                         const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                                         const struct TALER_Amount *coin_value,
-                                         const struct TALER_Amount *coin_fee);
-
-
-/**
- * Callback with data about a prepared transaction.
- *
- * @param cls closure
- * @param rowid row identifier used to mark prepared transaction as done
- * @param buf transaction data that was persisted, NULL on error
- * @param buf_size number of bytes in @a buf, 0 on error
- */
-typedef void
-(*TALER_MINTDB_WirePreparationCallback) (void *cls,
-                                         unsigned long long rowid,
-                                         const char *buf,
-                                         size_t buf_size);
-
-
-/**
- * @brief The plugin API, returned from the plugin's "init" function.
- * The argument given to "init" is simply a configuration handle.
- */
-struct TALER_MINTDB_Plugin
-{
-
-  /**
-   * Closure for all callbacks.
-   */
-  void *cls;
-
-  /**
-   * Name of the library which generated this plugin.  Set by the
-   * plugin loader.
-   */
-  char *library_name;
-
-  /**
-   * Get the thread-local database-handle.
-   * Connect to the db if the connection does not exist yet.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param temporary #GNUNET_YES to use a temporary schema; #GNUNET_NO to use the
-   *        database default one
-   * @param the database connection, or NULL on error
-   */
-  struct TALER_MINTDB_Session *
-  (*get_session) (void *cls,
-                  int temporary);
-
-
-  /**
-   * Drop the temporary taler schema.  This is only useful for testcases.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
-   */
-  int
-  (*drop_temporary) (void *cls,
-                     struct TALER_MINTDB_Session *db);
-
-
-  /**
-   * Create the necessary tables if they are not present
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param temporary should we use a temporary schema
-   * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
-   */
-  int
-  (*create_tables) (void *cls,
-                    int temporary);
-
-
-  /**
-   * Start a transaction.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session connection to use
-   * @return #GNUNET_OK on success
-   */
-  int
-  (*start) (void *cls,
-            struct TALER_MINTDB_Session *session);
-
-
-  /**
-   * Commit a transaction.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session connection to use
-   * @return #GNUNET_OK on success, #GNUNET_NO if the transaction
-   *         can be retried, #GNUNET_SYSERR on hard failures
-   */
-  int
-  (*commit) (void *cls,
-             struct TALER_MINTDB_Session *session);
-
-
-  /**
-   * Abort/rollback a transaction.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session connection to use
-   */
-  void
-  (*rollback) (void *cls,
-               struct TALER_MINTDB_Session *session);
-
-
-  /**
-   * Insert information about a denomination key and in particular
-   * the properties (value, fees, expiration times) the coins signed
-   * with this key have.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session connection to use
-   * @param denom_pub the public key used for signing coins of this denomination
-   * @param issue issuing information with value, fees and other info about the coin
-   * @return #GNUNET_OK on success; #GNUNET_SYSERR on failure
-   */
-  int
-  (*insert_denomination_info) (void *cls,
-                               struct TALER_MINTDB_Session *session,
-                               const struct TALER_DenominationPublicKey *denom_pub,
-                               const struct TALER_MINTDB_DenominationKeyInformationP *issue);
-
-
-  /**
-   * Fetch information about a denomination key.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session connection to use
-   * @param denom_pub the public key used for signing coins of this denomination
-   * @param[out] issue set to issue information with value, fees and other info about the coin, can be NULL
-   * @return #GNUNET_OK on success; #GNUNET_NO if no record was found, #GNUNET_SYSERR on failure
-   */
-  int
-  (*get_denomination_info) (void *cls,
-                            struct TALER_MINTDB_Session *session,
-                            const struct TALER_DenominationPublicKey *denom_pub,
-                            struct TALER_MINTDB_DenominationKeyInformationP *issue);
-
-
-  /**
-   * Get the summary of a reserve.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param db the database connection handle
-   * @param[in,out] reserve the reserve data.  The public key of the reserve should be set
-   *          in this structure; it is used to query the database.  The balance
-   *          and expiration are then filled accordingly.
-   * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
-   */
-  int
-  (*reserve_get) (void *cls,
-                  struct TALER_MINTDB_Session *db,
-                  struct TALER_MINTDB_Reserve *reserve);
-
-
-  /**
-   * Insert a incoming transaction into reserves.  New reserves are
-   * also created through this function.  Note that this API call
-   * starts (and stops) its own transaction scope (so the application
-   * must not do so).
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param db the database connection handle
-   * @param reserve_pub public key of the reserve
-   * @param balance the amount that has to be added to the reserve
-   * @param execution_time when was the amount added
-   * @param details bank transaction details justifying the increment,
-   *        must be unique for each incoming transaction
-   * @return #GNUNET_OK upon success; #GNUNET_NO if the given
-   *         @a details are already known for this @a reserve_pub,
-   *         #GNUNET_SYSERR upon failures (DB error, incompatible currency)
-   */
-  int
-  (*reserves_in_insert) (void *cls,
-                         struct TALER_MINTDB_Session *db,
-                         const struct TALER_ReservePublicKeyP *reserve_pub,
-                         const struct TALER_Amount *balance,
-                         struct GNUNET_TIME_Absolute execution_time,
-                         const json_t *details);
-
-
-  /**
-   * Locate the response for a /withdraw request under the
-   * key of the hash of the blinded message.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database connection to use
-   * @param h_blind hash of the blinded coin to be signed (will match
-   *                `h_coin_envelope` in the @a collectable to be returned)
-   * @param collectable corresponding collectable coin (blind signature)
-   *                    if a coin is found
-   * @return #GNUNET_SYSERR on internal error
-   *         #GNUNET_NO if the collectable was not found
-   *         #GNUNET_YES on success
-   */
-  int
-  (*get_withdraw_info) (void *cls,
-                        struct TALER_MINTDB_Session *session,
-                        const struct GNUNET_HashCode *h_blind,
-                        struct TALER_MINTDB_CollectableBlindcoin *collectable);
-
-
-  /**
-   * Store collectable bit coin under the corresponding
-   * hash of the blinded message.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database connection to use
-   * @param collectable corresponding collectable coin (blind signature)
-   *                    if a coin is found
-   * @return #GNUNET_SYSERR on internal error
-   *         #GNUNET_NO if the collectable was not found
-   *         #GNUNET_YES on success
-   */
-  int
-  (*insert_withdraw_info) (void *cls,
-                           struct TALER_MINTDB_Session *session,
-                           const struct TALER_MINTDB_CollectableBlindcoin *collectable);
-
-
-  /**
-   * Get all of the transaction history associated with the specified
-   * reserve.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session connection to use
-   * @param reserve_pub public key of the reserve
-   * @return known transaction history (NULL if reserve is unknown)
-   */
-  struct TALER_MINTDB_ReserveHistory *
-  (*get_reserve_history) (void *cls,
-                          struct TALER_MINTDB_Session *session,
-                          const struct TALER_ReservePublicKeyP *reserve_pub);
-
-
-  /**
-   * Free memory associated with the given reserve history.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param rh history to free.
-   */
-  void
-  (*free_reserve_history) (void *cls,
-                           struct TALER_MINTDB_ReserveHistory *rh);
-
-
-  /**
-   * Check if we have the specified deposit already in the database.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database connection
-   * @param deposit deposit to search for
-   * @return #GNUNET_YES if we know this operation,
-   *         #GNUNET_NO if this exact deposit is unknown to us,
-   *         #GNUNET_SYSERR on DB error
-   */
-  int
-  (*have_deposit) (void *cls,
-                   struct TALER_MINTDB_Session *session,
-                   const struct TALER_MINTDB_Deposit *deposit);
-
-
-  /**
-   * Insert information about deposited coin into the database.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session connection to the database
-   * @param deposit deposit information to store
-   * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
-   */
-  int
-  (*insert_deposit) (void *cls,
-                     struct TALER_MINTDB_Session *session,
-                     const struct TALER_MINTDB_Deposit *deposit);
-
-
-  /**
-   * Mark a deposit as tiny, thereby declaring that it cannot be
-   * executed by itself and should no longer be returned by
-   * @e iterate_ready_deposits()
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session connection to the database
-   * @param deposit_rowid identifies the deposit row to modify
-   * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
-   */
-  int
-  (*mark_deposit_tiny) (void *cls,
-                        struct TALER_MINTDB_Session *session,
-                        unsigned long long rowid);
-
-
-  /**
-   * Mark a deposit as done, thereby declaring that it cannot be
-   * executed at all anymore, and should no longer be returned by
-   * @e iterate_ready_deposits() or @e iterate_matching_deposits().
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session connection to the database
-   * @param deposit_rowid identifies the deposit row to modify
-   * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
-   */
-  int
-  (*mark_deposit_done) (void *cls,
-                        struct TALER_MINTDB_Session *session,
-                        unsigned long long rowid);
-
-
-  /**
-   * Obtain information about deposits that are ready to be executed.
-   * Such deposits must not be marked as "tiny" or "done", and the
-   * execution time must be in the past.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session connection to the database
-   * @param deposit_cb function to call for ONE such deposit
-   * @param deposit_cb_cls closure for @a deposit_cb
-   * @return number of rows processed, 0 if none exist,
-   *         #GNUNET_SYSERR on error
-   */
-  int
-  (*get_ready_deposit) (void *cls,
-                        struct TALER_MINTDB_Session *session,
-                        TALER_MINTDB_DepositIterator deposit_cb,
-                        void *deposit_cb_cls);
-
-
-  /**
-   * Obtain information about other pending deposits for the same
-   * destination.  Those deposits must not already be "done".
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session connection to the database
-   * @param h_wire destination of the wire transfer
-   * @param merchant_pub public key of the merchant
-   * @param deposit_cb function to call for each deposit
-   * @param deposit_cb_cls closure for @a deposit_cb
-   * @param limit maximum number of matching deposits to return
-   * @return number of rows processed, 0 if none exist,
-   *         #GNUNET_SYSERR on error
-   */
-  int
-  (*iterate_matching_deposits) (void *cls,
-                                struct TALER_MINTDB_Session *session,
-                                const struct GNUNET_HashCode *h_wire,
-                                const struct TALER_MerchantPublicKeyP *merchant_pub,
-                                TALER_MINTDB_DepositIterator deposit_cb,
-                                void *deposit_cb_cls,
-                                uint32_t limit);
-
-
-  /**
-   * Lookup refresh session data under the given @a session_hash.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database handle to use
-   * @param session_hash hash over the melt to use for the lookup
-   * @param[out] refresh_session where to store the result
-   * @return #GNUNET_YES on success,
-   *         #GNUNET_NO if not found,
-   *         #GNUNET_SYSERR on DB failure
-   */
-  int
-  (*get_refresh_session) (void *cls,
-                          struct TALER_MINTDB_Session *session,
-                          const struct GNUNET_HashCode *session_hash,
-                          struct TALER_MINTDB_RefreshSession *refresh_session);
-
-
-  /**
-   * Store new refresh session data under the given @a session_hash.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database handle to use
-   * @param session_hash hash over the melt to use to locate the session
-   * @param refresh_session session data to store
-   * @return #GNUNET_YES on success,
-   *         #GNUNET_SYSERR on DB failure
-   */
-  int
-  (*create_refresh_session) (void *cls,
-                             struct TALER_MINTDB_Session *session,
-                             const struct GNUNET_HashCode *session_hash,
-                             const struct TALER_MINTDB_RefreshSession *refresh_session);
-
-
-  /**
-   * Store the given /refresh/melt request in the database.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database connection
-   * @param oldcoin_index index of the coin to store
-   * @param melt coin melt operation details to store; includes
-   *             the session hash of the melt
-   * @return #GNUNET_OK on success
-   *         #GNUNET_SYSERR on internal error
-   */
-  int
-  (*insert_refresh_melt) (void *cls,
-                          struct TALER_MINTDB_Session *session,
-                          uint16_t oldcoin_index,
-                          const struct TALER_MINTDB_RefreshMelt *melt);
-
-
-  /**
-   * Get information about melted coin details from the database.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database connection
-   * @param session_hash hash to identify refresh session
-   * @param oldcoin_index index of the coin to retrieve
-   * @param melt melt data to fill in, can be NULL
-   * @return #GNUNET_OK on success
-   *         #GNUNET_SYSERR on internal error
-   */
-  int
-  (*get_refresh_melt) (void *cls,
-                       struct TALER_MINTDB_Session *session,
-                       const struct GNUNET_HashCode *session_hash,
-                       uint16_t oldcoin_index,
-                       struct TALER_MINTDB_RefreshMelt *melt);
-
-
-  /**
-   * Store in the database which coin(s) we want to create
-   * in a given refresh operation.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database connection
-   * @param session_hash hash to identify refresh session
-   * @param num_newcoins number of coins to generate, size of the @a denom_pubs array
-   * @param denom_pubs array denominations of the coins to create
-   * @return #GNUNET_OK on success
-   *         #GNUNET_SYSERR on internal error
-   */
-  int
-  (*insert_refresh_order) (void *cls,
-                           struct TALER_MINTDB_Session *session,
-                           const struct GNUNET_HashCode *session_hash,
-                           uint16_t num_newcoins,
-                           const struct TALER_DenominationPublicKey *denom_pubs);
-
-
-  /**
-   * Lookup in the database for the @a num_newcoins coins that we want to
-   * create in the given refresh operation.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database connection
-   * @param session_hash hash to identify refresh session
-   * @param num_newcoins size of the @a denom_pubs array
-   * @param[out] denom_pubs where to write @a num_newcoins denomination keys
-   * @return #GNUNET_OK on success
-   *         #GNUNET_SYSERR on internal error
-   */
-  int
-  (*get_refresh_order) (void *cls,
-                        struct TALER_MINTDB_Session *session,
-                        const struct GNUNET_HashCode *session_hash,
-                        uint16_t num_newcoins,
-                        struct TALER_DenominationPublicKey *denom_pubs);
-
-
-  /**
-   * Store information about the commitments of the given index @a i
-   * for the given refresh session in the database.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database connection to use
-   * @param session_hash hash to identify refresh session
-   * @param cnc_index cut and choose index (1st dimension), relating to #TALER_CNC_KAPPA
-   * @param num_newcoins coin index size of the @a commit_coins array
-   * @param commit_coin array of coin commitments to store
-   * @return #GNUNET_OK on success
-   *         #GNUNET_SYSERR on error
-   */
-  int
-  (*insert_refresh_commit_coins) (void *cls,
-                                  struct TALER_MINTDB_Session *session,
-                                  const struct GNUNET_HashCode *session_hash,
-                                  uint16_t cnc_index,
-                                  uint16_t num_newcoins,
-                                  const struct TALER_MINTDB_RefreshCommitCoin *commit_coins);
-
-
-  /**
-   * Obtain information about the commitment of the
-   * given coin of the given refresh session from the database.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database connection to use
-   * @param session_hash hash to identify refresh session
-   * @param cnc_index cut and choose set index (1st dimension)
-   * @param num_coins size of the @a commit_coins array
-   * @param[out] commit_coins array of coin commitments to return
-   * @return #GNUNET_OK on success
-   *         #GNUNET_NO if not found
-   *         #GNUNET_SYSERR on error
-   */
-  int
-  (*get_refresh_commit_coins) (void *cls,
-                               struct TALER_MINTDB_Session *session,
-                               const struct GNUNET_HashCode *session_hash,
-                               uint16_t cnc_index,
-                               uint16_t num_coins,
-                               struct TALER_MINTDB_RefreshCommitCoin *commit_coins);
-
-
-  /**
-   * Store the commitment to the given (encrypted) refresh link data
-   * for the given refresh session.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database connection to use
-   * @param session_hash hash to identify refresh session
-   * @param cnc_index cut and choose index (1st dimension), relating to #TALER_CNC_KAPPA
-   * @param num_links size of the @a commit_link array
-   * @param commit_links array of link information to store
-   * @return #GNUNET_SYSERR on internal error, #GNUNET_OK on success
-   */
-  int
-  (*insert_refresh_commit_links) (void *cls,
-                                  struct TALER_MINTDB_Session *session,
-                                  const struct GNUNET_HashCode *session_hash,
-                                  uint16_t cnc_index,
-                                  uint16_t num_links,
-                                  const struct TALER_RefreshCommitLinkP *commit_links);
-
-  /**
-   * Obtain the commited (encrypted) refresh link data
-   * for the given refresh session.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database connection to use
-   * @param session_hash hash to identify refresh session
-   * @param cnc_index cut and choose index (1st dimension)
-   * @param num_links size of the @a links array to return
-   * @param[out] links array link information to return
-   * @return #GNUNET_SYSERR on internal error,
-   *         #GNUNET_NO if commitment was not found
-   *         #GNUNET_OK on success
-   */
-  int
-  (*get_refresh_commit_links) (void *cls,
-                               struct TALER_MINTDB_Session *session,
-                               const struct GNUNET_HashCode *session_hash,
-                               uint16_t cnc_index,
-                               uint16_t num_links,
-                               struct TALER_RefreshCommitLinkP *links);
-
-
-  /**
-   * Get all of the information from the given melt commit operation.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database connection to use
-   * @param session_hash hash to identify refresh session
-   * @return NULL if the @a session_hash does not correspond to any known melt
-   *         operation
-   */
-  struct TALER_MINTDB_MeltCommitment *
-  (*get_melt_commitment) (void *cls,
-                          struct TALER_MINTDB_Session *session,
-                          const struct GNUNET_HashCode *session_hash);
-
-
-  /**
-   * Free information about a melt commitment.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param mc melt commitment data to free
-   */
-  void
-  (*free_melt_commitment) (void *cls,
-                           struct TALER_MINTDB_MeltCommitment *mc);
-
-
-  /**
-   * Insert signature of a new coin generated during refresh into
-   * the database indexed by the refresh session and the index
-   * of the coin.  This data is later used should an old coin
-   * be used to try to obtain the private keys during "/refresh/link".
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database connection
-   * @param session_hash hash to identify refresh session
-   * @param newcoin_index coin index
-   * @param ev_sig coin signature
-   * @return #GNUNET_OK on success
-   */
-  int
-  (*insert_refresh_out) (void *cls,
-                         struct TALER_MINTDB_Session *session,
-                         const struct GNUNET_HashCode *session_hash,
-                         uint16_t newcoin_index,
-                         const struct TALER_DenominationSignature *ev_sig);
-
-
-  /**
-   * Obtain the link data of a coin, that is the encrypted link
-   * information, the denomination keys and the signatures.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database connection
-   * @param session_hash session to get linkage data for
-   * @return all known link data for the session
-   */
-  struct TALER_MINTDB_LinkDataList *
-  (*get_link_data_list) (void *cls,
-                         struct TALER_MINTDB_Session *session,
-                         const struct GNUNET_HashCode *session_hash);
-
-
-  /**
-   * Free memory of the link data list.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param ldl link data list to release
-   */
-  void
-  (*free_link_data_list) (void *cls,
-                          struct TALER_MINTDB_LinkDataList *ldl);
-
-
-  /**
-   * Obtain shared secret and transfer public key from the public key of
-   * the coin.  This information and the link information returned by
-   * @e get_link_data_list() enable the owner of an old coin to determine
-   * the private keys of the new coins after the melt.
-   *
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database connection
-   * @param coin_pub public key of the coin
-   * @param tdc function to call for each session the coin was melted into
-   * @param tdc_cls closure for @a tdc
-   * @return #GNUNET_OK on success,
-   *         #GNUNET_NO on failure (not found)
-   *         #GNUNET_SYSERR on internal failure (database issue)
-   */
-  int
-  (*get_transfer) (void *cls,
-                   struct TALER_MINTDB_Session *session,
-                   const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                   TALER_MINTDB_TransferDataCallback tdc,
-                   void *tdc_cls);
-
-
-  /**
-   * Compile a list of all (historic) transactions performed
-   * with the given coin (/refresh/melt and /deposit operations).
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database connection
-   * @param coin_pub coin to investigate
-   * @return list of transactions, NULL if coin is fresh
-   */
-  struct TALER_MINTDB_TransactionList *
-  (*get_coin_transactions) (void *cls,
-                            struct TALER_MINTDB_Session *session,
-                            const struct TALER_CoinSpendPublicKeyP *coin_pub);
-
-
-  /**
-   * Free linked list of transactions.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param list list to free
-   */
-  void
-  (*free_coin_transaction_list) (void *cls,
-                                 struct TALER_MINTDB_TransactionList *list);
-
-
-  /**
-   * Lookup the list of Taler transactions that was aggregated
-   * into a wire transfer by the respective @a raw_wtid.
-   *
-   * @param cls the @e cls of this struct with the plugin-specific state
-   * @param session database connection
-   * @param wtid the raw wire transfer identifier we used
-   * @param cb function to call on each transaction found
-   * @param cb_cls closure for @a cb
-   * @return #GNUNET_OK on success, #GNUNET_SYSERR on database errors,
-   *         #GNUNET_NO if we found no results
-   */
-  int
-  (*lookup_wire_transfer) (void *cls,
-                           struct TALER_MINTDB_Session *session,
-                           const struct TALER_WireTransferIdentifierRawP *wtid,
-                           TALER_MINTDB_WireTransferDataCallback cb,
-                           void *cb_cls);
-
-
-  /**
-   * Try to find the wire transfer details for a deposit operation.
-   * If we did not execute the deposit yet, return when it is supposed
-   * to be executed.
-   *
-   * @param cls closure
-   * @param session database connection
-   * @param h_contract hash of the contract
-   * @param h_wire hash of merchant wire details
-   * @param coin_pub public key of deposited coin
-   * @param merchant_pub merchant public key
-   * @param transaction_id transaction identifier
-   * @param cb function to call with the result
-   * @param cb_cls closure to pass to @a cb
-   * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors,
-   *         #GNUNET_NO if nothing was found
-   */
-  int
-  (*wire_lookup_deposit_wtid)(void *cls,
-                              struct TALER_MINTDB_Session *session,
-			      const struct GNUNET_HashCode *h_contract,
-			      const struct GNUNET_HashCode *h_wire,
-			      const struct TALER_CoinSpendPublicKeyP *coin_pub,
-			      const struct TALER_MerchantPublicKeyP *merchant_pub,
-			      uint64_t transaction_id,
-			      TALER_MINTDB_DepositWtidCallback cb,
-			      void *cb_cls);
-
-
-  /**
-   * Function called to insert aggregation information into the DB.
-   *
-   * @param cls closure
-   * @param session database connection
-   * @param wtid the raw wire transfer identifier we used
-   * @param merchant_pub public key of the merchant (should be same for all callbacks with the same @e cls)
-   * @param h_wire hash of wire transfer details of the merchant (should be same for all callbacks with the same @e cls)
-   * @param h_contract which contract was this payment about
-   * @param transaction_id merchant's transaction ID for the payment
-   * @param execution_time when did we execute the transaction
-   * @param coin_pub which public key was this payment about
-   * @param coin_value amount contributed by this coin in total
-   * @param coin_fee deposit fee charged by mint for this coin
-   * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors
-   */
-  int
-  (*insert_aggregation_tracking)(void *cls,
-                                 struct TALER_MINTDB_Session *session,
-                                 const struct TALER_WireTransferIdentifierRawP *wtid,
-                                 const struct TALER_MerchantPublicKeyP *merchant_pub,
-                                 const struct GNUNET_HashCode *h_wire,
-                                 const struct GNUNET_HashCode *h_contract,
-                                 uint64_t transaction_id,
-                                 struct GNUNET_TIME_Absolute execution_time,
-                                 const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                                 const struct TALER_Amount *coin_value,
-                                 const struct TALER_Amount *coin_fee);
-
-
-  /**
-   * Function called to insert wire transfer commit data into the DB.
-   *
-   * @param cls closure
-   * @param session database connection
-   * @param type type of the wire transfer (i.e. "sepa")
-   * @param buf buffer with wire transfer preparation data
-   * @param buf_size number of bytes in @a buf
-   * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors
-   */
-  int
-  (*wire_prepare_data_insert)(void *cls,
-                              struct TALER_MINTDB_Session *session,
-                              const char *type,
-                              const char *buf,
-                              size_t buf_size);
-
-
-  /**
-   * Function called to mark wire transfer commit data as finished.
-   *
-   * @param cls closure
-   * @param session database connection
-   * @param rowid which entry to mark as finished
-   * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors
-   */
-  int
-  (*wire_prepare_data_mark_finished)(void *cls,
-                                     struct TALER_MINTDB_Session *session,
-                                     unsigned long long rowid);
-
-
-  /**
-   * Function called to get an unfinished wire transfer
-   * preparation data. Fetches at most one item.
-   *
-   * @param cls closure
-   * @param session database connection
-   * @param type type fo the wire transfer (i.e. "sepa")
-   * @param cb function to call for ONE unfinished item
-   * @param cb_cls closure for @a cb
-   * @return #GNUNET_OK on success,
-   *         #GNUNET_NO if there are no entries,
-   *         #GNUNET_SYSERR on DB errors
-   */
-  int
-  (*wire_prepare_data_get)(void *cls,
-                           struct TALER_MINTDB_Session *session,
-                           const char *type,
-                           TALER_MINTDB_WirePreparationCallback cb,
-                           void *cb_cls);
-
-
-};
-
-
-#endif /* _TALER_MINT_DB_H */
diff --git a/src/include/taler_signatures.h b/src/include/taler_signatures.h
index 2526597ee..729bed262 100644
--- a/src/include/taler_signatures.h
+++ b/src/include/taler_signatures.h
@@ -54,62 +54,62 @@
 #define TALER_IDLE_RESERVE_EXPIRATION_TIME GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_YEARS, 5)
 
 /*********************************************/
-/* Mint offline signatures (with master key) */
+/* Exchange offline signatures (with master key) */
 /*********************************************/
 
 /**
- * Purpose for signing public keys signed by the mint master key.
+ * Purpose for signing public keys signed by the exchange master key.
  */
 #define TALER_SIGNATURE_MASTER_SIGNING_KEY_VALIDITY 1024
 
 /**
- * Purpose for denomination keys signed by the mint master key.
+ * Purpose for denomination keys signed by the exchange master key.
  */
 #define TALER_SIGNATURE_MASTER_DENOMINATION_KEY_VALIDITY 1025
 
 /**
- * Signature where the Mint confirms its SEPA details in
+ * Signature where the Exchange confirms its SEPA details in
  * the /wire/sepa response.
  */
 #define TALER_SIGNATURE_MASTER_SEPA_DETAILS 1026
 
 
 /*********************************************/
-/* Mint online signatures (with signing key) */
+/* Exchange online signatures (with signing key) */
 /*********************************************/
 
 /**
- * Purpose for the state of a reserve, signed by the mint's signing
+ * Purpose for the state of a reserve, signed by the exchange's signing
  * key.
  */
-#define TALER_SIGNATURE_MINT_RESERVE_STATUS 1032
+#define TALER_SIGNATURE_EXCHANGE_RESERVE_STATUS 1032
 
 /**
- * Signature where the Mint confirms a deposit request.
+ * Signature where the Exchange confirms a deposit request.
  */
-#define TALER_SIGNATURE_MINT_CONFIRM_DEPOSIT 1033
+#define TALER_SIGNATURE_EXCHANGE_CONFIRM_DEPOSIT 1033
 
 /**
- * Signature where the mint (current signing key) confirms the
+ * Signature where the exchange (current signing key) confirms the
  * no-reveal index for cut-and-choose and the validity of the melted
  * coins.
  */
-#define TALER_SIGNATURE_MINT_CONFIRM_MELT 1034
+#define TALER_SIGNATURE_EXCHANGE_CONFIRM_MELT 1034
 
 /**
- * Signature where the Mint confirms the full /keys response set.
+ * Signature where the Exchange confirms the full /keys response set.
  */
-#define TALER_SIGNATURE_MINT_KEY_SET 1035
+#define TALER_SIGNATURE_EXCHANGE_KEY_SET 1035
 
 /**
- * Signature where the Mint confirms the /wire response.
+ * Signature where the Exchange confirms the /wire response.
  */
-#define TALER_SIGNATURE_MINT_WIRE_TYPES 1036
+#define TALER_SIGNATURE_EXCHANGE_WIRE_TYPES 1036
 
 /**
- * Signature where the Mint confirms the /deposit/wtid response.
+ * Signature where the Exchange confirms the /deposit/wtid response.
  */
-#define TALER_SIGNATURE_MINT_CONFIRM_WIRE 1036
+#define TALER_SIGNATURE_EXCHANGE_CONFIRM_WIRE 1036
 
 
 /*********************/
@@ -118,9 +118,9 @@
 
 /**
  * Signature where the auditor confirms that he is
- * aware of certain denomination keys from the mint.
+ * aware of certain denomination keys from the exchange.
  */
-#define TALER_SIGNATURE_AUDITOR_MINT_KEYS 1064
+#define TALER_SIGNATURE_AUDITOR_EXCHANGE_KEYS 1064
 
 
 /***********************/
@@ -176,7 +176,7 @@
 /**
  * EdDSA test signature.
  */
-#define TALER_SIGNATURE_MINT_TEST_EDDSA 1303
+#define TALER_SIGNATURE_EXCHANGE_TEST_EDDSA 1303
 
 
 
@@ -202,7 +202,7 @@ struct TALER_WithdrawRequestPS
   struct TALER_ReservePublicKeyP reserve_pub;
 
   /**
-   * Value of the coin being minted (matching the denomination key)
+   * Value of the coin being exchangeed (matching the denomination key)
    * plus the transaction fee.  We include this in what is being
    * signed so that we can verify a reserve's remaining total balance
    * without needing to access the respective denomination key
@@ -211,14 +211,14 @@ struct TALER_WithdrawRequestPS
   struct TALER_AmountNBO amount_with_fee;
 
   /**
-   * Withdrawl fee charged by the mint.  This must match the Mint's
+   * Withdrawl fee charged by the exchange.  This must match the Exchange's
    * denomination key's withdrawl fee.  If the client puts in an
    * invalid withdrawl fee (too high or too low) that does not match
-   * the Mint's denomination key, the withdraw operation is invalid
-   * and will be rejected by the mint.  The @e amount_with_fee minus
+   * the Exchange's denomination key, the withdraw operation is invalid
+   * and will be rejected by the exchange.  The @e amount_with_fee minus
    * the @e withdraw_fee is must match the value of the generated
    * coin.  We include this in what is being signed so that we can
-   * verify a mint's accounting without needing to access the
+   * verify a exchange's accounting without needing to access the
    * respective denomination key information each time.
    */
   struct TALER_AmountNBO withdraw_fee;
@@ -229,7 +229,7 @@ struct TALER_WithdrawRequestPS
   struct GNUNET_HashCode h_denomination_pub GNUNET_PACKED;
 
   /**
-   * Hash of the (blinded) message to be signed by the Mint.
+   * Hash of the (blinded) message to be signed by the Exchange.
    */
   struct GNUNET_HashCode h_coin_envelope GNUNET_PACKED;
 };
@@ -260,12 +260,12 @@ struct TALER_DepositRequestPS
   /**
    * Time when this request was generated.  Used, for example, to
    * assess when (roughly) the income was achieved for tax purposes.
-   * Note that the Mint will only check that the timestamp is not "too
+   * Note that the Exchange will only check that the timestamp is not "too
    * far" into the future (i.e. several days).  The fact that the
    * timestamp falls within the validity period of the coin's
    * denomination key is irrelevant for the validity of the deposit
    * request, as obviously the customer and merchant could conspire to
-   * set any timestamp.  Also, the Mint must accept very old deposit
+   * set any timestamp.  Also, the Exchange must accept very old deposit
    * requests, as the merchant might have been unable to transmit the
    * deposit request in a timely fashion (so back-dating is not
    * prevented).
@@ -293,17 +293,17 @@ struct TALER_DepositRequestPS
 
   /**
    * Amount to be deposited, including deposit fee charged by the
-   * mint.  This is the total amount that the coin's value at the mint
+   * exchange.  This is the total amount that the coin's value at the exchange
    * will be reduced by.
    */
   struct TALER_AmountNBO amount_with_fee;
 
   /**
-   * Depositing fee charged by the mint.  This must match the Mint's
+   * Depositing fee charged by the exchange.  This must match the Exchange's
    * denomination key's depositing fee.  If the client puts in an
    * invalid deposit fee (too high or too low) that does not match the
-   * Mint's denomination key, the deposit operation is invalid and
-   * will be rejected by the mint.  The @e amount_with_fee minus the
+   * Exchange's denomination key, the deposit operation is invalid and
+   * will be rejected by the exchange.  The @e amount_with_fee minus the
    * @e deposit_fee is the amount that will be transferred to the
    * account identified by @e h_wire.
    */
@@ -317,7 +317,7 @@ struct TALER_DepositRequestPS
 
   /**
    * The coin's public key.  This is the value that must have been
-   * signed (blindly) by the Mint.  The deposit request is to be
+   * signed (blindly) by the Exchange.  The deposit request is to be
    * signed by the corresponding private key (using EdDSA).
    */
   struct TALER_CoinSpendPublicKeyP coin_pub;
@@ -327,13 +327,13 @@ struct TALER_DepositRequestPS
 
 /**
  * @brief Format used to generate the signature on a confirmation
- * from the mint that a deposit request succeeded.
+ * from the exchange that a deposit request succeeded.
  */
 struct TALER_DepositConfirmationPS
 {
   /**
-   * Purpose must be #TALER_SIGNATURE_MINT_CONFIRM_DEPOSIT.  Signed
-   * by a `struct TALER_MintPublicKeyP` using EdDSA.
+   * Purpose must be #TALER_SIGNATURE_EXCHANGE_CONFIRM_DEPOSIT.  Signed
+   * by a `struct TALER_ExchangePublicKeyP` using EdDSA.
    */
   struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
 
@@ -362,7 +362,7 @@ struct TALER_DepositConfirmationPS
    * How much time does the @e merchant have to issue a refund
    * request?  Zero if refunds are not allowed.  After this time, the
    * coin cannot be refunded.  Note that the wire transfer will not be
-   * performed by the mint until the refund deadline.  This value
+   * performed by the exchange until the refund deadline.  This value
    * is taken from the original deposit request.
    */
   struct GNUNET_TIME_AbsoluteNBO refund_deadline;
@@ -375,7 +375,7 @@ struct TALER_DepositConfirmationPS
 
   /**
    * The coin's public key.  This is the value that must have been
-   * signed (blindly) by the Mint.  The deposit request is to be
+   * signed (blindly) by the Exchange.  The deposit request is to be
    * signed by the corresponding private key (using EdDSA).
    */
   struct TALER_CoinSpendPublicKeyP coin_pub;
@@ -417,11 +417,11 @@ struct TALER_RefreshMeltCoinAffirmationPS
   struct TALER_AmountNBO amount_with_fee;
 
   /**
-   * Melting fee charged by the mint.  This must match the Mint's
+   * Melting fee charged by the exchange.  This must match the Exchange's
    * denomination key's melting fee.  If the client puts in an invalid
-   * melting fee (too high or too low) that does not match the Mint's
+   * melting fee (too high or too low) that does not match the Exchange's
    * denomination key, the melting operation is invalid and will be
-   * rejected by the mint.  The @e amount_with_fee minus the @e
+   * rejected by the exchange.  The @e amount_with_fee minus the @e
    * melt_fee is the amount that will be credited to the melting
    * session.
    */
@@ -429,7 +429,7 @@ struct TALER_RefreshMeltCoinAffirmationPS
 
   /**
    * The coin's public key.  This is the value that must have been
-   * signed (blindly) by the Mint.  The deposit request is to be
+   * signed (blindly) by the Exchange.  The deposit request is to be
    * signed by the corresponding private key (using EdDSA).
    */
   struct TALER_CoinSpendPublicKeyP coin_pub;
@@ -437,16 +437,16 @@ struct TALER_RefreshMeltCoinAffirmationPS
 
 
 /**
- * @brief Format of the block signed by the Mint in response to a successful
- * "/refresh/melt" request.  Hereby the mint affirms that all of the
- * coins were successfully melted.  This also commits the mint to a
+ * @brief Format of the block signed by the Exchange in response to a successful
+ * "/refresh/melt" request.  Hereby the exchange affirms that all of the
+ * coins were successfully melted.  This also commits the exchange to a
  * particular index to not be revealed during the refresh.
  */
 struct TALER_RefreshMeltConfirmationPS
 {
   /**
-   * Purpose is #TALER_SIGNATURE_MINT_CONFIRM_MELT.   Signed
-   * by a `struct TALER_MintPublicKeyP` using EdDSA.
+   * Purpose is #TALER_SIGNATURE_EXCHANGE_CONFIRM_MELT.   Signed
+   * by a `struct TALER_ExchangePublicKeyP` using EdDSA.
    */
   struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
 
@@ -469,14 +469,14 @@ struct TALER_RefreshMeltConfirmationPS
 
 
 /**
- * @brief Information about a signing key of the mint.  Signing keys are used
- * to sign mint messages other than coins, i.e. to confirm that a
+ * @brief Information about a signing key of the exchange.  Signing keys are used
+ * to sign exchange messages other than coins, i.e. to confirm that a
  * deposit was successful or that a refresh was accepted.
  */
-struct TALER_MintSigningKeyValidityPS
+struct TALER_ExchangeSigningKeyValidityPS
 {
   /**
-   * Signature over the signing key (by the master key of the mint).
+   * Signature over the signing key (by the master key of the exchange).
    *
    * FIXME: should be moved outside of the "PS" struct, this is ugly.
    * (and makes this struct different from all of the others)
@@ -489,8 +489,8 @@ struct TALER_MintSigningKeyValidityPS
   struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
 
   /**
-   * Master public key of the mint corresponding to @e signature.
-   * This is the long-term offline master key of the mint.
+   * Master public key of the exchange corresponding to @e signature.
+   * This is the long-term offline master key of the exchange.
    */
   struct TALER_MasterPublicKeyP master_public_key;
 
@@ -501,7 +501,7 @@ struct TALER_MintSigningKeyValidityPS
 
   /**
    * When does this signing key expire? Note: This is currently when
-   * the Mint will definitively stop using it.  Signatures made with
+   * the Exchange will definitively stop using it.  Signatures made with
    * the key remain valid until @e end.  When checking validity periods,
    * clients should allow for some overlap between keys and tolerate
    * the use of either key during the overlap time (due to the
@@ -512,31 +512,31 @@ struct TALER_MintSigningKeyValidityPS
   /**
    * When do signatures with this signing key become invalid?  After
    * this point, these signatures cannot be used in (legal) disputes
-   * anymore, as the Mint is then allowed to destroy its side of the
+   * anymore, as the Exchange is then allowed to destroy its side of the
    * evidence.  @e end is expected to be significantly larger than @e
    * expire (by a year or more).
    */
   struct GNUNET_TIME_AbsoluteNBO end;
 
   /**
-   * The public online signing key that the mint will use
+   * The public online signing key that the exchange will use
    * between @e start and @e expire.
    */
-  struct TALER_MintPublicKeyP signkey_pub;
+  struct TALER_ExchangePublicKeyP signkey_pub;
 };
 
 
 /**
- * @brief Signature made by the mint over the full set of keys, used
- * to detect cheating mints that give out different sets to
+ * @brief Signature made by the exchange over the full set of keys, used
+ * to detect cheating exchanges that give out different sets to
  * different users.
  */
-struct TALER_MintKeySetPS
+struct TALER_ExchangeKeySetPS
 {
 
   /**
-   * Purpose is #TALER_SIGNATURE_MINT_KEY_SET.   Signed
-   * by a `struct TALER_MintPublicKeyP` using EdDSA.
+   * Purpose is #TALER_SIGNATURE_EXCHANGE_KEY_SET.   Signed
+   * by a `struct TALER_ExchangePublicKeyP` using EdDSA.
    */
   struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
 
@@ -565,7 +565,7 @@ struct TALER_DenominationKeyValidityPS
   struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
 
   /**
-   * The long-term offline master key of the mint that was
+   * The long-term offline master key of the exchange that was
    * used to create @e signature.
    */
   struct TALER_MasterPublicKeyP master;
@@ -576,14 +576,14 @@ struct TALER_DenominationKeyValidityPS
   struct GNUNET_TIME_AbsoluteNBO start;
 
   /**
-   * The mint will sign fresh coins between @e start and this time.
+   * The exchange will sign fresh coins between @e start and this time.
    * @e expire_withdraw will be somewhat larger than @e start to
    * ensure a sufficiently large anonymity set, while also allowing
-   * the Mint to limit the financial damage in case of a key being
-   * compromised.  Thus, mints with low volume are expected to have a
-   * longer withdraw period (@e expire_withdraw - @e start) than mints
+   * the Exchange to limit the financial damage in case of a key being
+   * compromised.  Thus, exchanges with low volume are expected to have a
+   * longer withdraw period (@e expire_withdraw - @e start) than exchanges
    * with high transaction volume.  The period may also differ between
-   * types of coins.  A mint may also have a few denomination keys
+   * types of coins.  A exchange may also have a few denomination keys
    * with the same value with overlapping validity periods, to address
    * issues such as clock skew.
    */
@@ -592,7 +592,7 @@ struct TALER_DenominationKeyValidityPS
   /**
    * Coins signed with the denomination key must be spent or refreshed
    * between @e start and this expiration time.  After this time, the
-   * mint will refuse transactions involving this key as it will
+   * exchange will refuse transactions involving this key as it will
    * "drop" the table with double-spending information (shortly after)
    * this time.  Note that wallets should refresh coins significantly
    * before this time to be on the safe side.  @e expire_spend must be
@@ -604,7 +604,7 @@ struct TALER_DenominationKeyValidityPS
   /**
    * When do signatures with this denomination key become invalid?
    * After this point, these signatures cannot be used in (legal)
-   * disputes anymore, as the Mint is then allowed to destroy its side
+   * disputes anymore, as the Exchange is then allowed to destroy its side
    * of the evidence.  @e expire_legal is expected to be significantly
    * larger than @e expire_spend (by a year or more).
    */
@@ -616,19 +616,19 @@ struct TALER_DenominationKeyValidityPS
   struct TALER_AmountNBO value;
 
   /**
-   * The fee the mint charges when a coin of this type is withdrawn.
+   * The fee the exchange charges when a coin of this type is withdrawn.
    * (can be zero).
    */
   struct TALER_AmountNBO fee_withdraw;
 
   /**
-   * The fee the mint charges when a coin of this type is deposited.
+   * The fee the exchange charges when a coin of this type is deposited.
    * (can be zero).
    */
   struct TALER_AmountNBO fee_deposit;
 
   /**
-   * The fee the mint charges when a coin of this type is refreshed.
+   * The fee the exchange charges when a coin of this type is refreshed.
    * (can be zero).
    */
   struct TALER_AmountNBO fee_refresh;
@@ -645,18 +645,18 @@ struct TALER_DenominationKeyValidityPS
 /**
  * @brief Information signed by an auditor affirming
  * the master public key and the denomination keys
- * of a mint.
+ * of a exchange.
  */
-struct TALER_MintKeyValidityPS
+struct TALER_ExchangeKeyValidityPS
 {
 
   /**
-   * Purpose is #TALER_SIGNATURE_AUDITOR_MINT_KEYS.
+   * Purpose is #TALER_SIGNATURE_AUDITOR_EXCHANGE_KEYS.
    */
   struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
 
   /**
-   * The long-term offline master key of the mint, affirmed by the
+   * The long-term offline master key of the exchange, affirmed by the
    * auditor.
    */
   struct TALER_MasterPublicKeyP master;
@@ -667,14 +667,14 @@ struct TALER_MintKeyValidityPS
   struct GNUNET_TIME_AbsoluteNBO start;
 
   /**
-   * The mint will sign fresh coins between @e start and this time.
+   * The exchange will sign fresh coins between @e start and this time.
    * @e expire_withdraw will be somewhat larger than @e start to
    * ensure a sufficiently large anonymity set, while also allowing
-   * the Mint to limit the financial damage in case of a key being
-   * compromised.  Thus, mints with low volume are expected to have a
-   * longer withdraw period (@e expire_withdraw - @e start) than mints
+   * the Exchange to limit the financial damage in case of a key being
+   * compromised.  Thus, exchanges with low volume are expected to have a
+   * longer withdraw period (@e expire_withdraw - @e start) than exchanges
    * with high transaction volume.  The period may also differ between
-   * types of coins.  A mint may also have a few denomination keys
+   * types of coins.  A exchange may also have a few denomination keys
    * with the same value with overlapping validity periods, to address
    * issues such as clock skew.
    */
@@ -683,7 +683,7 @@ struct TALER_MintKeyValidityPS
   /**
    * Coins signed with the denomination key must be spent or refreshed
    * between @e start and this expiration time.  After this time, the
-   * mint will refuse transactions involving this key as it will
+   * exchange will refuse transactions involving this key as it will
    * "drop" the table with double-spending information (shortly after)
    * this time.  Note that wallets should refresh coins significantly
    * before this time to be on the safe side.  @e expire_spend must be
@@ -695,7 +695,7 @@ struct TALER_MintKeyValidityPS
   /**
    * When do signatures with this denomination key become invalid?
    * After this point, these signatures cannot be used in (legal)
-   * disputes anymore, as the Mint is then allowed to destroy its side
+   * disputes anymore, as the Exchange is then allowed to destroy its side
    * of the evidence.  @e expire_legal is expected to be significantly
    * larger than @e expire_spend (by a year or more).
    */
@@ -707,19 +707,19 @@ struct TALER_MintKeyValidityPS
   struct TALER_AmountNBO value;
 
   /**
-   * The fee the mint charges when a coin of this type is withdrawn.
+   * The fee the exchange charges when a coin of this type is withdrawn.
    * (can be zero).
    */
   struct TALER_AmountNBO fee_withdraw;
 
   /**
-   * The fee the mint charges when a coin of this type is deposited.
+   * The fee the exchange charges when a coin of this type is deposited.
    * (can be zero).
    */
   struct TALER_AmountNBO fee_deposit;
 
   /**
-   * The fee the mint charges when a coin of this type is refreshed.
+   * The fee the exchange charges when a coin of this type is refreshed.
    * (can be zero).
    */
   struct TALER_AmountNBO fee_refresh;
@@ -737,7 +737,7 @@ struct TALER_MintKeyValidityPS
  * @brief For each (old) coin being melted, we have a `struct
  * RefreshCommitLinkP` that allows the user to find the shared secret
  * to decrypt the respective refresh links for the new coins in the
- * `struct TALER_MINTDB_RefreshCommitCoin`.
+ * `struct TALER_EXCHANGEDB_RefreshCommitCoin`.
  *
  * Part of the construction of the refresh session's hash and
  * thus of what is signed there.
@@ -759,8 +759,8 @@ struct TALER_RefreshCommitLinkP
 
 
 /**
- * @brief Information signed by the mint's master
- * key affirming the SEPA details for the mint.
+ * @brief Information signed by the exchange's master
+ * key affirming the SEPA details for the exchange.
  */
 struct TALER_MasterWireSepaDetailsPS
 {
@@ -780,19 +780,19 @@ struct TALER_MasterWireSepaDetailsPS
 
 
 /**
- * @brief Information signed by a mint's online signing key affirming
- * the wire formats supported by the mint.
+ * @brief Information signed by a exchange's online signing key affirming
+ * the wire formats supported by the exchange.
  */
-struct TALER_MintWireSupportMethodsPS
+struct TALER_ExchangeWireSupportMethodsPS
 {
 
   /**
-   * Purpose is #TALER_SIGNATURE_MINT_WIRE_TYPES.
+   * Purpose is #TALER_SIGNATURE_EXCHANGE_WIRE_TYPES.
    */
   struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
 
   /**
-   * Hash over the various wire formats supported by this mint
+   * Hash over the various wire formats supported by this exchange
    * (all as 0-terminated strings).
    */
   struct GNUNET_HashCode h_wire_types GNUNET_PACKED;
@@ -841,7 +841,7 @@ struct TALER_DepositTrackPS
 
   /**
    * The coin's public key.  This is the value that must have been
-   * signed (blindly) by the Mint.
+   * signed (blindly) by the Exchange.
    */
   struct TALER_CoinSpendPublicKeyP coin_pub;
 
@@ -896,14 +896,14 @@ struct TALER_ContractPS
 
 
 /**
- * Details affirmed by the mint about a wire transfer the mint
+ * Details affirmed by the exchange about a wire transfer the exchange
  * claims to have done with respect to a deposit operation.
  */
 struct TALER_ConfirmWirePS
 {
   /**
    * Purpose header for the signature over the contract with
-   * purpose #TALER_SIGNATURE_MINT_CONFIRM_WIRE.
+   * purpose #TALER_SIGNATURE_EXCHANGE_CONFIRM_WIRE.
    */
   struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
 
@@ -924,7 +924,7 @@ struct TALER_ConfirmWirePS
 
   /**
    * The coin's public key.  This is the value that must have been
-   * signed (blindly) by the Mint.
+   * signed (blindly) by the Exchange.
    */
   struct TALER_CoinSpendPublicKeyP coin_pub;
 
@@ -941,7 +941,7 @@ struct TALER_ConfirmWirePS
   uint64_t transaction_id GNUNET_PACKED;
 
   /**
-   * When did the mint execute this transfer? Note that the
+   * When did the exchange execute this transfer? Note that the
    * timestamp may not be exactly the same on the wire, i.e.
    * because the wire has a different timezone or resolution.
    */
diff --git a/src/mint-lib/Makefile.am b/src/mint-lib/Makefile.am
deleted file mode 100644
index 171a42464..000000000
--- a/src/mint-lib/Makefile.am
+++ /dev/null
@@ -1,62 +0,0 @@
-# This Makefile.am is in the public domain
-AM_CPPFLAGS = -I$(top_srcdir)/src/include
-
-if USE_COVERAGE
-  AM_CFLAGS = --coverage -O0
-  XLIB = -lgcov
-endif
-
-lib_LTLIBRARIES = \
-  libtalermint.la
-
-libtalermint_la_LDFLAGS = \
-  -version-info 0:0:0 \
-  -no-undefined
-
-libtalermint_la_SOURCES = \
-  mint_api_common.c mint_api_common.h \
-  mint_api_context.c mint_api_context.h \
-  mint_api_json.c mint_api_json.h \
-  mint_api_handle.c mint_api_handle.h \
-  mint_api_admin.c \
-  mint_api_deposit.c \
-  mint_api_deposit_wtid.c \
-  mint_api_refresh.c \
-  mint_api_refresh_link.c \
-  mint_api_reserve.c \
-  mint_api_wire.c \
-  mint_api_wire_deposits.c
-
-libtalermint_la_LIBADD = \
-  -lgnunetutil \
-  -ljansson \
-  $(XLIB)
-
-if HAVE_LIBCURL
-libtalermint_la_LIBADD += -lcurl
-else
-if HAVE_LIBGNURL
-libtalermint_la_LIBADD += -lgnurl
-endif
-endif
-
-check_PROGRAMS = \
-  test_mint_api
-
-TESTS = \
-  $(check_PROGRAMS)
-
-test_mint_api_SOURCES = \
-  test_mint_api.c
-test_mint_api_LDADD = \
-  libtalermint.la \
-  $(LIBGCRYPT_LIBS) \
-  $(top_builddir)/src/util/libtalerutil.la \
-  -lgnunetutil \
-  -ljansson
-
-EXTRA_DIST = \
-  test-mint-home/config/mint-common.conf \
-  test-mint-home/master.priv \
-  test-mint-home/denomkeys/ \
-  test-mint-home/signkeys/
diff --git a/src/mint-lib/afl-generate.sh b/src/mint-lib/afl-generate.sh
deleted file mode 100644
index 4b5051869..000000000
--- a/src/mint-lib/afl-generate.sh
+++ /dev/null
@@ -1,34 +0,0 @@
-#!/bin/sh
-#
-# This file is part of TALER
-# Copyright (C) 2015 GNUnet e.V.
-#
-#  TALER is free software; you can redistribute it and/or modify it under the
-#  terms of the GNU Affero General Public License as published by the Free Software
-#  Foundation; either version 3, or (at your option) any later version.
-#
-#  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-#  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-#
-#  You should have received a copy of the GNU Affero General Public License along with
-#  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-#
-#
-# This will generate testcases in a directory 'afl-tests', which can then
-# be moved into src/mint/afl-tests/ to be run during mint-testing.
-#
-# This script uses American Fuzzy Loop (AFL) to fuzz the mint to
-# automatically create tests with good coverage.  You must install
-# AFL and set AFL_HOME to the directory where AFL is installed
-# before running.  Also, a directory "baseline/" should exist with
-# templates for inputs for AFL to fuzz.  These can be generated
-# by running wireshark on loopback while running 'make check' in
-# this directory.  Save each HTTP request to a new file.
-#
-# Note that you want to switch 'TESTRUN = NO' and pre-init the
-# database before running this, otherwise it will be awfully slow.
-#
-# Must be run from this directory.
-#
-$AFL_HOME/afl-fuzz -i baseline/ -m 250 -o afl-tests/ -f /tmp/afl-input taler-mint-httpd -f /tmp/afl-input -d test-mint-home/ -C
diff --git a/src/mint-lib/mint_api_admin.c b/src/mint-lib/mint_api_admin.c
deleted file mode 100644
index 641e0690f..000000000
--- a/src/mint-lib/mint_api_admin.c
+++ /dev/null
@@ -1,254 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see
-  <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-lib/mint_api_admin.c
- * @brief Implementation of the /admin/ requests of the mint's HTTP API
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <curl/curl.h>
-#include <jansson.h>
-#include <microhttpd.h> /* just for HTTP status codes */
-#include <gnunet/gnunet_util_lib.h>
-#include "taler_mint_service.h"
-#include "mint_api_json.h"
-#include "mint_api_context.h"
-#include "mint_api_handle.h"
-#include "taler_signatures.h"
-
-
-/**
- * @brief An admin/add/incoming Handle
- */
-struct TALER_MINT_AdminAddIncomingHandle
-{
-
-  /**
-   * The connection to mint this request handle will use
-   */
-  struct TALER_MINT_Handle *mint;
-
-  /**
-   * The url for this request.
-   */
-  char *url;
-
-  /**
-   * JSON encoding of the request to POST.
-   */
-  char *json_enc;
-
-  /**
-   * Handle for the request.
-   */
-  struct MAC_Job *job;
-
-  /**
-   * HTTP headers for the request.
-   */
-  struct curl_slist *headers;
-
-  /**
-   * Function to call with the result.
-   */
-  TALER_MINT_AdminAddIncomingResultCallback cb;
-
-  /**
-   * Closure for @a cb.
-   */
-  void *cb_cls;
-
-  /**
-   * Download buffer
-   */
-  struct MAC_DownloadBuffer db;
-
-};
-
-
-/**
- * Function called when we're done processing the
- * HTTP /admin/add/incoming request.
- *
- * @param cls the `struct TALER_MINT_AdminAddIncomingHandle`
- * @param eh the curl request handle
- */
-static void
-handle_admin_add_incoming_finished (void *cls,
-                                    CURL *eh)
-{
-  struct TALER_MINT_AdminAddIncomingHandle *aai = cls;
-  long response_code;
-  json_t *json;
-
-  aai->job = NULL;
-  json = MAC_download_get_result (&aai->db,
-                                  eh,
-                                  &response_code);
-  switch (response_code)
-  {
-  case 0:
-    break;
-  case MHD_HTTP_OK:
-    break;
-  case MHD_HTTP_BAD_REQUEST:
-    /* This should never happen, either us or the mint is buggy
-       (or API version conflict); just pass JSON reply to the application */
-    break;
-  case MHD_HTTP_FORBIDDEN:
-    /* Access denied */
-    break;
-  case MHD_HTTP_UNAUTHORIZED:
-    /* Nothing really to verify, mint says one of the signatures is
-       invalid; as we checked them, this should never happen, we
-       should pass the JSON reply to the application */
-    break;
-  case MHD_HTTP_NOT_FOUND:
-    /* Nothing really to verify, this should never
-       happen, we should pass the JSON reply to the application */
-    break;
-  case MHD_HTTP_INTERNAL_SERVER_ERROR:
-    /* Server had an internal issue; we should retry, but this API
-       leaves this to the application */
-    break;
-  default:
-    /* unexpected response code */
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u\n",
-                response_code);
-    GNUNET_break (0);
-    response_code = 0;
-    break;
-  }
-  aai->cb (aai->cb_cls,
-           response_code,
-           json);
-  json_decref (json);
-  TALER_MINT_admin_add_incoming_cancel (aai);
-}
-
-
-/**
- * Notify the mint that we have received an incoming transaction
- * which fills a reserve.  Note that this API is an administrative
- * API and thus not accessible to typical mint clients, but only
- * to the operators of the mint.
- *
- * @param mint the mint handle; the mint must be ready to operate
- * @param reserve_pub public key of the reserve
- * @param amount amount that was deposited
- * @param execution_date when did we receive the amount
- * @param wire wire details
- * @param res_cb the callback to call when the final result for this request is available
- * @param res_cb_cls closure for the above callback
- * @return NULL
- *         if the inputs are invalid (i.e. invalid amount).
- *         In this case, the callback is not called.
- */
-struct TALER_MINT_AdminAddIncomingHandle *
-TALER_MINT_admin_add_incoming (struct TALER_MINT_Handle *mint,
-                               const struct TALER_ReservePublicKeyP *reserve_pub,
-                               const struct TALER_Amount *amount,
-                               struct GNUNET_TIME_Absolute execution_date,
-                               const json_t *wire,
-                               TALER_MINT_AdminAddIncomingResultCallback res_cb,
-                               void *res_cb_cls)
-{
-  struct TALER_MINT_AdminAddIncomingHandle *aai;
-  struct TALER_MINT_Context *ctx;
-  json_t *admin_obj;
-  CURL *eh;
-
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_round_abs_time (&execution_date));
-  if (GNUNET_YES !=
-      MAH_handle_is_ready (mint))
-  {
-    GNUNET_break (0);
-    return NULL;
-  }
-  admin_obj = json_pack ("{s:o, s:o," /* reserve_pub/amount */
-                         " s:o, s:O}", /* execution_Date/wire */
-                         "reserve_pub", TALER_json_from_data (reserve_pub,
-                                                               sizeof (*reserve_pub)),
-                         "amount", TALER_json_from_amount (amount),
-                         "execution_date", TALER_json_from_abs (execution_date),
-                         "wire", wire);
-  aai = GNUNET_new (struct TALER_MINT_AdminAddIncomingHandle);
-  aai->mint = mint;
-  aai->cb = res_cb;
-  aai->cb_cls = res_cb_cls;
-  aai->url = MAH_path_to_url (mint, "/admin/add/incoming");
-
-  eh = curl_easy_init ();
-  GNUNET_assert (NULL != (aai->json_enc =
-                          json_dumps (admin_obj,
-                                      JSON_COMPACT)));
-  json_decref (admin_obj);
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_URL,
-                                   aai->url));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_POSTFIELDS,
-                                   aai->json_enc));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_POSTFIELDSIZE,
-                                   strlen (aai->json_enc)));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEFUNCTION,
-                                   &MAC_download_cb));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEDATA,
-                                   &aai->db));
-  ctx = MAH_handle_to_context (mint);
-  aai->job = MAC_job_add (ctx,
-                          eh,
-                          GNUNET_YES,
-                          &handle_admin_add_incoming_finished,
-                          aai);
-  return aai;
-}
-
-
-/**
- * Cancel an add incoming.  This function cannot be used on a request
- * handle if a response is already served for it.
- *
- * @param aai the admin add incoming request handle
- */
-void
-TALER_MINT_admin_add_incoming_cancel (struct TALER_MINT_AdminAddIncomingHandle *aai)
-{
-  if (NULL != aai->job)
-  {
-    MAC_job_cancel (aai->job);
-    aai->job = NULL;
-  }
-  curl_slist_free_all (aai->headers);
-  GNUNET_free_non_null (aai->db.buf);
-  GNUNET_free (aai->url);
-  GNUNET_free (aai->json_enc);
-  GNUNET_free (aai);
-}
-
-
-/* end of mint_api_admin.c */
diff --git a/src/mint-lib/mint_api_common.c b/src/mint-lib/mint_api_common.c
deleted file mode 100644
index faba38c74..000000000
--- a/src/mint-lib/mint_api_common.c
+++ /dev/null
@@ -1,194 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see
-  <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-lib/mint_api_common.c
- * @brief common functions for the mint API
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include "mint_api_common.h"
-#include "mint_api_json.h"
-#include "mint_api_context.h"
-#include "mint_api_handle.h"
-#include "taler_signatures.h"
-
-
-/**
- * Verify a coins transaction history as returned by the mint.
- *
- * @param currency expected currency for the coin
- * @param coin_pub public key of the coin
- * @param history history of the coin in json encoding
- * @param[out] total how much of the coin has been spent according to @a history
- * @return #GNUNET_OK if @a history is valid, #GNUNET_SYSERR if not
- */
-int
-TALER_MINT_verify_coin_history_ (const char *currency,
-                                 const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                                 json_t *history,
-                                 struct TALER_Amount *total)
-{
-  size_t len;
-  size_t off;
-
-  if (NULL == history)
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  len = json_array_size (history);
-  if (0 == len)
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  TALER_amount_get_zero (currency,
-                         total);
-  for (off=0;off<len;off++)
-  {
-    json_t *transaction;
-    struct TALER_Amount amount;
-    struct TALER_CoinSpendSignatureP sig;
-    void *details;
-    size_t details_size;
-    const char *type;
-    struct MAJ_Specification spec[] = {
-      MAJ_spec_amount ("amount",
-                       &amount),
-      MAJ_spec_string ("type",
-                       &type),
-      MAJ_spec_fixed_auto ("signature",
-                           &sig),
-      MAJ_spec_varsize ("details",
-                        &details,
-                        &details_size),
-      MAJ_spec_end
-    };
-
-    transaction = json_array_get (history,
-                                  off);
-    if (GNUNET_OK !=
-        MAJ_parse_json (transaction,
-                        spec))
-    {
-      GNUNET_break_op (0);
-      return GNUNET_SYSERR;
-    }
-    if (0 == strcasecmp (type,
-                         "DEPOSIT"))
-    {
-      const struct TALER_DepositRequestPS *dr;
-      struct TALER_Amount dr_amount;
-
-      if (details_size != sizeof (struct TALER_DepositRequestPS))
-      {
-        GNUNET_break_op (0);
-        MAJ_parse_free (spec);
-        return GNUNET_SYSERR;
-      }
-      dr = (const struct TALER_DepositRequestPS *) details;
-      if (details_size != ntohl (dr->purpose.size))
-      {
-        GNUNET_break_op (0);
-        MAJ_parse_free (spec);
-        return GNUNET_SYSERR;
-      }
-      if (GNUNET_OK !=
-          GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_DEPOSIT,
-                                      &dr->purpose,
-                                      &sig.eddsa_signature,
-                                      &coin_pub->eddsa_pub))
-        {
-        GNUNET_break_op (0);
-        MAJ_parse_free (spec);
-        return GNUNET_SYSERR;
-      }
-
-       // FIXME: check sig!
-      TALER_amount_ntoh (&dr_amount,
-                         &dr->amount_with_fee);
-      if (0 != TALER_amount_cmp (&dr_amount,
-                                 &amount))
-        {
-          GNUNET_break (0);
-          MAJ_parse_free (spec);
-          return GNUNET_SYSERR;
-        }
-    }
-    else if (0 == strcasecmp (type,
-                              "MELT"))
-    {
-      const struct TALER_RefreshMeltCoinAffirmationPS *rm;
-      struct TALER_Amount rm_amount;
-
-      if (details_size != sizeof (struct TALER_RefreshMeltCoinAffirmationPS))
-      {
-        GNUNET_break_op (0);
-        MAJ_parse_free (spec);
-        return GNUNET_SYSERR;
-      }
-      rm = (const struct TALER_RefreshMeltCoinAffirmationPS *) details;
-      if (details_size != ntohl (rm->purpose.size))
-      {
-        GNUNET_break_op (0);
-        MAJ_parse_free (spec);
-        return GNUNET_SYSERR;
-      }
-      if (GNUNET_OK !=
-          GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_MELT,
-                                      &rm->purpose,
-                                      &sig.eddsa_signature,
-                                      &coin_pub->eddsa_pub))
-      {
-        GNUNET_break_op (0);
-        MAJ_parse_free (spec);
-        return GNUNET_SYSERR;
-      }
-      TALER_amount_ntoh (&rm_amount,
-                         &rm->amount_with_fee);
-      if (0 != TALER_amount_cmp (&rm_amount,
-                                 &amount))
-      {
-        GNUNET_break_op (0);
-        MAJ_parse_free (spec);
-        return GNUNET_SYSERR;
-      }
-    }
-    else
-    {
-      /* signature not supported, new version on server? */
-      GNUNET_break_op (0);
-      MAJ_parse_free (spec);
-      return GNUNET_SYSERR;
-    }
-    if (GNUNET_OK !=
-        TALER_amount_add (total,
-                          total,
-                          &amount))
-    {
-      /* overflow in history already!? inconceivable! Bad mint! */
-      GNUNET_break_op (0);
-      MAJ_parse_free (spec);
-      return GNUNET_SYSERR;
-    }
-    MAJ_parse_free (spec);
-  }
-  return GNUNET_OK;
-}
-
-
-/* end of mint_api_common.c */
diff --git a/src/mint-lib/mint_api_common.h b/src/mint-lib/mint_api_common.h
deleted file mode 100644
index 10a202146..000000000
--- a/src/mint-lib/mint_api_common.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see
-  <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-lib/mint_api_common.h
- * @brief common functions for the mint API
- * @author Christian Grothoff
- */
-#include <jansson.h>
-#include <gnunet/gnunet_util_lib.h>
-#include "taler_mint_service.h"
-
-/**
- * Verify a coins transaction history as returned by the mint.
- *
- * @param currency expected currency for the coin
- * @param coin_pub public key of the coin
- * @param history history of the coin in json encoding
- * @param[out] total how much of the coin has been spent according to @a history
- * @return #GNUNET_OK if @a history is valid, #GNUNET_SYSERR if not
- */
-int
-TALER_MINT_verify_coin_history_ (const char *currency,
-                                 const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                                 json_t *history,
-                                 struct TALER_Amount *total);
-
-/* end of mint_api_common.h */
diff --git a/src/mint-lib/mint_api_context.c b/src/mint-lib/mint_api_context.c
deleted file mode 100644
index 2767906b5..000000000
--- a/src/mint-lib/mint_api_context.c
+++ /dev/null
@@ -1,537 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see
-  <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-lib/mint_api_context.c
- * @brief Implementation of the context part of the mint's HTTP API
- * @author Sree Harsha Totakura <sreeharsha@totakura.in>
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <curl/curl.h>
-#include "taler_mint_service.h"
-#include "mint_api_context.h"
-
-
-/**
- * Log error related to CURL operations.
- *
- * @param type log level
- * @param function which function failed to run
- * @param code what was the curl error code
- */
-#define CURL_STRERROR(type, function, code)      \
- GNUNET_log (type,                               \
-             "Curl function `%s' has failed at `%s:%d' with error: %s\n", \
-             function, __FILE__, __LINE__, curl_easy_strerror (code));
-
-/**
- * Print JSON parsing related error information
- */
-#define JSON_WARN(error)                                                \
-    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,                              \
-                "JSON parsing failed at %s:%u: %s (%s)\n",              \
-                __FILE__, __LINE__, error.text, error.source)
-
-
-/**
- * Failsafe flag. Raised if our constructor fails to initialize
- * the Curl library.
- */
-static int TALER_MINT_curl_fail;
-
-
-/**
- * Jobs are CURL requests running within a `struct TALER_MINT_Context`.
- */
-struct MAC_Job
-{
-
-  /**
-   * We keep jobs in a DLL.
-   */
-  struct MAC_Job *next;
-
-  /**
-   * We keep jobs in a DLL.
-   */
-  struct MAC_Job *prev;
-
-  /**
-   * Easy handle of the job.
-   */
-  CURL *easy_handle;
-
-  /**
-   * Context this job runs in.
-   */
-  struct TALER_MINT_Context *ctx;
-
-  /**
-   * Function to call upon completion.
-   */
-  MAC_JobCompletionCallback jcc;
-
-  /**
-   * Closure for @e jcc.
-   */
-  void *jcc_cls;
-
-};
-
-
-/**
- * Context
- */
-struct TALER_MINT_Context
-{
-  /**
-   * Curl multi handle
-   */
-  CURLM *multi;
-
-  /**
-   * Curl share handle
-   */
-  CURLSH *share;
-
-  /**
-   * We keep jobs in a DLL.
-   */
-  struct MAC_Job *jobs_head;
-
-  /**
-   * We keep jobs in a DLL.
-   */
-  struct MAC_Job *jobs_tail;
-
-  /**
-   * HTTP header "application/json", created once and used
-   * for all requests that need it.
-   */
-  struct curl_slist *json_header;
-
-};
-
-
-/**
- * Initialise this library.  This function should be called before using any of
- * the following functions.
- *
- * @return library context
- */
-struct TALER_MINT_Context *
-TALER_MINT_init ()
-{
-  struct TALER_MINT_Context *ctx;
-  CURLM *multi;
-  CURLSH *share;
-
-  if (TALER_MINT_curl_fail)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Curl was not initialised properly\n");
-    return NULL;
-  }
-  if (NULL == (multi = curl_multi_init ()))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Failed to create a Curl multi handle\n");
-    return NULL;
-  }
-  if (NULL == (share = curl_share_init ()))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Failed to create a Curl share handle\n");
-    return NULL;
-  }
-  ctx = GNUNET_new (struct TALER_MINT_Context);
-  ctx->multi = multi;
-  ctx->share = share;
-  GNUNET_assert (NULL != (ctx->json_header =
-                          curl_slist_append (NULL,
-                                             "Content-Type: application/json")));
-  return ctx;
-}
-
-
-/**
- * Schedule a CURL request to be executed and call the given @a jcc
- * upon its completion.  Note that the context will make use of the
- * CURLOPT_PRIVATE facility of the CURL @a eh.  Applications can
- * instead use #MAC_easy_to_closure to extract the @a jcc_cls argument
- * from a valid @a eh afterwards.
- *
- * This function modifies the CURL handle to add the
- * "Content-Type: application/json" header if @a add_json is set.
- *
- * @param ctx context to execute the job in
- * @param eh curl easy handle for the request, will
- *           be executed AND cleaned up
- * @param add_json add "application/json" content type header
- * @param jcc callback to invoke upon completion
- * @param jcc_cls closure for @a jcc
- */
-struct MAC_Job *
-MAC_job_add (struct TALER_MINT_Context *ctx,
-             CURL *eh,
-             int add_json,
-             MAC_JobCompletionCallback jcc,
-             void *jcc_cls)
-{
-  struct MAC_Job *job;
-
-  if (GNUNET_YES == add_json)
-    GNUNET_assert (CURLE_OK ==
-                   curl_easy_setopt (eh,
-                                     CURLOPT_HTTPHEADER,
-                                     ctx->json_header));
-
-  job = GNUNET_new (struct MAC_Job);
-  job->easy_handle = eh;
-  job->ctx = ctx;
-  job->jcc = jcc;
-  job->jcc_cls = jcc_cls;
-  GNUNET_CONTAINER_DLL_insert (ctx->jobs_head,
-                               ctx->jobs_tail,
-                               job);
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_PRIVATE,
-                                   job));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_SHARE,
-                                   ctx->share));
-  GNUNET_assert (CURLM_OK ==
-                 curl_multi_add_handle (ctx->multi,
-                                        eh));
-  return job;
-}
-
-
-/**
- * Obtain the `jcc_cls` argument from an `eh` that was
- * given to #MAC_job_add().
- *
- * @param eh easy handle that was used
- * @return the `jcc_cls` that was given to #MAC_job_add().
- */
-void *
-MAC_easy_to_closure (CURL *eh)
-{
-  struct MAC_Job *job;
-
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_getinfo (eh,
-                                    CURLINFO_PRIVATE,
-                                    (char **) &job));
-  return job->jcc_cls;
-}
-
-
-/**
- * Cancel a job.  Must only be called before the job completion
- * callback is called for the respective job.
- *
- * @param job job to cancel
- */
-void
-MAC_job_cancel (struct MAC_Job *job)
-{
-  struct TALER_MINT_Context *ctx = job->ctx;
-
-  GNUNET_CONTAINER_DLL_remove (ctx->jobs_head,
-                               ctx->jobs_tail,
-                               job);
-  GNUNET_assert (CURLM_OK ==
-                 curl_multi_remove_handle (ctx->multi,
-                                           job->easy_handle));
-  curl_easy_cleanup (job->easy_handle);
-  GNUNET_free (job);
-}
-
-
-/**
- * Run the main event loop for the Taler interaction.
- *
- * @param ctx the library context
- */
-void
-TALER_MINT_perform (struct TALER_MINT_Context *ctx)
-{
-  CURLMsg *cmsg;
-  struct MAC_Job *job;
-  int n_running;
-  int n_completed;
-
-  (void) curl_multi_perform (ctx->multi,
-                             &n_running);
-  while (NULL != (cmsg = curl_multi_info_read (ctx->multi,
-                                               &n_completed)))
-  {
-    /* Only documented return value is CURLMSG_DONE */
-    GNUNET_break (CURLMSG_DONE == cmsg->msg);
-    GNUNET_assert (CURLE_OK ==
-                   curl_easy_getinfo (cmsg->easy_handle,
-                                      CURLINFO_PRIVATE,
-                                      (char **) &job));
-    GNUNET_assert (job->ctx == ctx);
-    job->jcc (job->jcc_cls,
-              cmsg->easy_handle);
-    MAC_job_cancel (job);
-  }
-}
-
-
-/**
- * Obtain the information for a select() call to wait until
- * #TALER_MINT_perform() is ready again.  Note that calling
- * any other TALER_MINT-API may also imply that the library
- * is again ready for #TALER_MINT_perform().
- *
- * Basically, a client should use this API to prepare for select(),
- * then block on select(), then call #TALER_MINT_perform() and then
- * start again until the work with the context is done.
- *
- * This function will NOT zero out the sets and assumes that @a max_fd
- * and @a timeout are already set to minimal applicable values.  It is
- * safe to give this API FD-sets and @a max_fd and @a timeout that are
- * already initialized to some other descriptors that need to go into
- * the select() call.
- *
- * @param ctx context to get the event loop information for
- * @param read_fd_set will be set for any pending read operations
- * @param write_fd_set will be set for any pending write operations
- * @param except_fd_set is here because curl_multi_fdset() has this argument
- * @param max_fd set to the highest FD included in any set;
- *        if the existing sets have no FDs in it, the initial
- *        value should be "-1". (Note that `max_fd + 1` will need
- *        to be passed to select().)
- * @param timeout set to the timeout in milliseconds (!); -1 means
- *        no timeout (NULL, blocking forever is OK), 0 means to
- *        proceed immediately with #TALER_MINT_perform().
- */
-void
-TALER_MINT_get_select_info (struct TALER_MINT_Context *ctx,
-                            fd_set *read_fd_set,
-                            fd_set *write_fd_set,
-                            fd_set *except_fd_set,
-                            int *max_fd,
-                            long *timeout)
-{
-  long to;
-  int m;
-
-  m = -1;
-  GNUNET_assert (CURLM_OK ==
-                 curl_multi_fdset (ctx->multi,
-                                   read_fd_set,
-                                   write_fd_set,
-                                   except_fd_set,
-                                   &m));
-  to = *timeout;
-  *max_fd = GNUNET_MAX (m, *max_fd);
-  GNUNET_assert (CURLM_OK ==
-                 curl_multi_timeout (ctx->multi,
-                                     &to));
-
-  /* Only if what we got back from curl is smaller than what we
-     already had (-1 == infinity!), then update timeout */
-  if ( (to < *timeout) &&
-       (-1 != to) )
-    *timeout = to;
-  if ( (-1 == (*timeout)) &&
-       (NULL != ctx->jobs_head) )
-    *timeout = to;
-}
-
-
-/**
- * Cleanup library initialisation resources.  This function should be called
- * after using this library to cleanup the resources occupied during library's
- * initialisation.
- *
- * @param ctx the library context
- */
-void
-TALER_MINT_fini (struct TALER_MINT_Context *ctx)
-{
-  /* all jobs must have been cancelled at this time, assert this */
-  GNUNET_assert (NULL == ctx->jobs_head);
-  curl_share_cleanup (ctx->share);
-  curl_multi_cleanup (ctx->multi);
-  curl_slist_free_all (ctx->json_header);
-  GNUNET_free (ctx);
-}
-
-
-/**
- * Callback used when downloading the reply to an HTTP request.
- * Just appends all of the data to the `buf` in the
- * `struct MAC_DownloadBuffer` for further processing. The size of
- * the download is limited to #GNUNET_MAX_MALLOC_CHECKED, if
- * the download exceeds this size, we abort with an error.
- *
- * @param bufptr data downloaded via HTTP
- * @param size size of an item in @a bufptr
- * @param nitems number of items in @a bufptr
- * @param cls the `struct KeysRequest`
- * @return number of bytes processed from @a bufptr
- */
-size_t
-MAC_download_cb (char *bufptr,
-                 size_t size,
-                 size_t nitems,
-                 void *cls)
-{
-  struct MAC_DownloadBuffer *db = cls;
-  size_t msize;
-  void *buf;
-
-  if (0 == size * nitems)
-  {
-    /* Nothing (left) to do */
-    return 0;
-  }
-  msize = size * nitems;
-  if ( (msize + db->buf_size) >= GNUNET_MAX_MALLOC_CHECKED)
-  {
-    db->eno = ENOMEM;
-    return 0; /* signals an error to curl */
-  }
-  db->buf = GNUNET_realloc (db->buf,
-                            db->buf_size + msize);
-  buf = db->buf + db->buf_size;
-  memcpy (buf, bufptr, msize);
-  db->buf_size += msize;
-  return msize;
-}
-
-
-/**
- * Obtain information about the final result about the
- * HTTP download. If the download was successful, parses
- * the JSON in the @a db and returns it. Also returns
- * the HTTP @a response_code.  If the download failed,
- * the return value is NULL.  The response code is set
- * in any case, on download errors to zero.
- *
- * Calling this function also cleans up @a db.
- *
- * @param db download buffer
- * @param eh CURL handle (to get the response code)
- * @param[out] response_code set to the HTTP response code
- *             (or zero if we aborted the download, i.e.
- *              because the response was too big, or if
- *              the JSON we received was malformed).
- * @return NULL if downloading a JSON reply failed
- */
-json_t *
-MAC_download_get_result (struct MAC_DownloadBuffer *db,
-                         CURL *eh,
-                         long *response_code)
-{
-  json_t *json;
-  json_error_t error;
-  char *ct;
-
-  if ( (CURLE_OK !=
-        curl_easy_getinfo (eh,
-                           CURLINFO_CONTENT_TYPE,
-                           &ct)) ||
-       (NULL == ct) ||
-       (0 != strcasecmp (ct,
-                         "application/json")) )
-  {
-    /* No content type or explicitly not JSON, refuse to parse
-       (but keep response code) */
-    if (CURLE_OK !=
-        curl_easy_getinfo (eh,
-                           CURLINFO_RESPONSE_CODE,
-                           response_code))
-    {
-      /* unexpected error... */
-      GNUNET_break (0);
-      *response_code = 0;
-    }
-    return NULL;
-  }
-
-  json = NULL;
-  if (0 == db->eno)
-  {
-    json = json_loadb (db->buf,
-                       db->buf_size,
-                       JSON_REJECT_DUPLICATES | JSON_DISABLE_EOF_CHECK,
-                       &error);
-    if (NULL == json)
-    {
-      JSON_WARN (error);
-      *response_code = 0;
-    }
-  }
-  GNUNET_free_non_null (db->buf);
-  db->buf = NULL;
-  db->buf_size = 0;
-  if (NULL != json)
-  {
-    if (CURLE_OK !=
-        curl_easy_getinfo (eh,
-                           CURLINFO_RESPONSE_CODE,
-                           response_code))
-    {
-      /* unexpected error... */
-      GNUNET_break (0);
-      *response_code = 0;
-    }
-  }
-  return json;
-}
-
-
-/**
- * Initial global setup logic, specifically runs the Curl setup.
- */
-__attribute__ ((constructor))
-void
-TALER_MINT_constructor__ (void)
-{
-  CURLcode ret;
-
-  if (CURLE_OK != (ret = curl_global_init (CURL_GLOBAL_DEFAULT)))
-  {
-    CURL_STRERROR (GNUNET_ERROR_TYPE_ERROR,
-                   "curl_global_init",
-                   ret);
-    TALER_MINT_curl_fail = 1;
-  }
-}
-
-
-/**
- * Cleans up after us, specifically runs the Curl cleanup.
- */
-__attribute__ ((destructor))
-void
-TALER_MINT_destructor__ (void)
-{
-  if (TALER_MINT_curl_fail)
-    return;
-  curl_global_cleanup ();
-}
-
-/* end of mint_api_context.c */
diff --git a/src/mint-lib/mint_api_context.h b/src/mint-lib/mint_api_context.h
deleted file mode 100644
index 181a4808f..000000000
--- a/src/mint-lib/mint_api_context.h
+++ /dev/null
@@ -1,169 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see
-  <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-lib/mint_api_context.h
- * @brief Internal interface to the context part of the mint's HTTP API
- * @author Sree Harsha Totakura <sreeharsha@totakura.in>
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <curl/curl.h>
-#include <gnunet/gnunet_util_lib.h>
-#include "taler_mint_service.h"
-#include "taler_signatures.h"
-
-
-/**
- * Entry in the context's job queue.
- */
-struct MAC_Job;
-
-/**
- * Function to call upon completion of a job.
- *
- * @param cls closure
- * @param eh original easy handle (for inspection)
- */
-typedef void
-(*MAC_JobCompletionCallback)(void *cls,
-                             CURL *eh);
-
-
-/**
- * Schedule a CURL request to be executed and call the given @a jcc
- * upon its completion. Note that the context will make use of the
- * CURLOPT_PRIVATE facility of the CURL @a eh.  Applications can
- * instead use #MAC_easy_to_closure to extract the @a jcc_cls argument
- * from a valid @a eh afterwards.
- *
- * This function modifies the CURL handle to add the
- * "Content-Type: application/json" header if @a add_json is set.
- *
- * @param ctx context to execute the job in
- * @param eh curl easy handle for the request, will
- *           be executed AND cleaned up
- * @param add_json add "application/json" content type header
- * @param jcc callback to invoke upon completion
- * @param jcc_cls closure for @a jcc
- */
-struct MAC_Job *
-MAC_job_add (struct TALER_MINT_Context *ctx,
-             CURL *eh,
-             int add_json,
-             MAC_JobCompletionCallback jcc,
-             void *jcc_cls);
-
-
-/**
- * Obtain the `jcc_cls` argument from an `eh` that was
- * given to #MAC_job_add().
- *
- * @param eh easy handle that was used
- * @return the `jcc_cls` that was given to #MAC_job_add().
- */
-void *
-MAC_easy_to_closure (CURL *eh);
-
-
-/**
- * Cancel a job.  Must only be called before the job completion
- * callback is called for the respective job.
- *
- * @param job job to cancel
- */
-void
-MAC_job_cancel (struct MAC_Job *job);
-
-
-/**
- * @brief Buffer data structure we use to buffer the HTTP download
- * before giving it to the JSON parser.
- */
-struct MAC_DownloadBuffer
-{
-
-  /**
-   * Download buffer
-   */
-  void *buf;
-
-  /**
-   * The size of the download buffer
-   */
-  size_t buf_size;
-
-  /**
-   * Error code (based on libc errno) if we failed to download
-   * (i.e. response too large).
-   */
-  int eno;
-
-};
-
-
-/**
- * Callback used when downloading the reply to an HTTP request.
- * Just appends all of the data to the `buf` in the
- * `struct MAC_DownloadBuffer` for further processing. The size of
- * the download is limited to #GNUNET_MAX_MALLOC_CHECKED, if
- * the download exceeds this size, we abort with an error.
- *
- * Should be used by the various routines as the
- * CURLOPT_WRITEFUNCTION.  A `struct MAC_DownloadBuffer` needs to be
- * passed to the CURLOPT_WRITEDATA.
- *
- * Afterwards, `eno` needs to be checked to ensure that the download
- * completed correctly.
- *
- * @param bufptr data downloaded via HTTP
- * @param size size of an item in @a bufptr
- * @param nitems number of items in @a bufptr
- * @param cls the `struct KeysRequest`
- * @return number of bytes processed from @a bufptr
- */
-size_t
-MAC_download_cb (char *bufptr,
-                 size_t size,
-                 size_t nitems,
-                 void *cls);
-
-
-/**
- * Obtain information about the final result about the
- * HTTP download. If the download was successful, parses
- * the JSON in the @a db and returns it. Also returns
- * the HTTP @a response_code.  If the download failed,
- * the return value is NULL.  The response code is set
- * in any case, on download errors to zero.
- *
- * Calling this function also cleans up @a db.
- *
- * @param db download buffer
- * @param eh CURL handle (to get the response code)
- * @param[out] response_code set to the HTTP response code
- *             (or zero if we aborted the download, i.e.
- *              because the response was too big, or if
- *              the JSON we received was malformed).
- * @return NULL if downloading a JSON reply failed
- */
-json_t *
-MAC_download_get_result (struct MAC_DownloadBuffer *db,
-                         CURL *eh,
-                         long *response_code);
-
-
-/* end of mint_api_context.h */
diff --git a/src/mint-lib/mint_api_deposit.c b/src/mint-lib/mint_api_deposit.c
deleted file mode 100644
index 400372925..000000000
--- a/src/mint-lib/mint_api_deposit.c
+++ /dev/null
@@ -1,569 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see
-  <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-lib/mint_api_deposit.c
- * @brief Implementation of the /deposit request of the mint's HTTP API
- * @author Sree Harsha Totakura <sreeharsha@totakura.in>
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <curl/curl.h>
-#include <jansson.h>
-#include <microhttpd.h> /* just for HTTP status codes */
-#include <gnunet/gnunet_util_lib.h>
-#include "taler_mint_service.h"
-#include "mint_api_common.h"
-#include "mint_api_json.h"
-#include "mint_api_context.h"
-#include "mint_api_handle.h"
-#include "taler_signatures.h"
-
-
-/**
- * @brief A Deposit Handle
- */
-struct TALER_MINT_DepositHandle
-{
-
-  /**
-   * The connection to mint this request handle will use
-   */
-  struct TALER_MINT_Handle *mint;
-
-  /**
-   * The url for this request.
-   */
-  char *url;
-
-  /**
-   * JSON encoding of the request to POST.
-   */
-  char *json_enc;
-
-  /**
-   * Handle for the request.
-   */
-  struct MAC_Job *job;
-
-  /**
-   * Function to call with the result.
-   */
-  TALER_MINT_DepositResultCallback cb;
-
-  /**
-   * Closure for @a cb.
-   */
-  void *cb_cls;
-
-  /**
-   * Download buffer
-   */
-  struct MAC_DownloadBuffer db;
-
-  /**
-   * Information the mint should sign in response.
-   */
-  struct TALER_DepositConfirmationPS depconf;
-
-  /**
-   * Value of the /deposit transaction, including fee.
-   */
-  struct TALER_Amount amount_with_fee;
-
-  /**
-   * Total value of the coin being transacted with.
-   */
-  struct TALER_Amount coin_value;
-
-};
-
-
-/**
- * Verify that the signature on the "200 OK" response
- * from the mint is valid.
- *
- * @param dh deposit handle
- * @param json json reply with the signature
- * @return #GNUNET_OK if the signature is valid, #GNUNET_SYSERR if not
- */
-static int
-verify_deposit_signature_ok (const struct TALER_MINT_DepositHandle *dh,
-                             json_t *json)
-{
-  struct TALER_MintSignatureP mint_sig;
-  struct TALER_MintPublicKeyP mint_pub;
-  const struct TALER_MINT_Keys *key_state;
-  struct MAJ_Specification spec[] = {
-    MAJ_spec_fixed_auto ("sig", &mint_sig),
-    MAJ_spec_fixed_auto ("pub", &mint_pub),
-    MAJ_spec_end
-  };
-
-  if (GNUNET_OK !=
-      MAJ_parse_json (json,
-                      spec))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  key_state = TALER_MINT_get_keys (dh->mint);
-  if (GNUNET_OK !=
-      TALER_MINT_test_signing_key (key_state,
-                                   &mint_pub))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MINT_CONFIRM_DEPOSIT,
-                                  &dh->depconf.purpose,
-                                  &mint_sig.eddsa_signature,
-                                  &mint_pub.eddsa_pub))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Verify that the signatures on the "403 FORBIDDEN" response from the
- * mint demonstrating customer double-spending are valid.
- *
- * @param dh deposit handle
- * @param json json reply with the signature(s) and transaction history
- * @return #GNUNET_OK if the signature(s) is valid, #GNUNET_SYSERR if not
- */
-static int
-verify_deposit_signature_forbidden (const struct TALER_MINT_DepositHandle *dh,
-                                    json_t *json)
-{
-  json_t *history;
-  struct TALER_Amount total;
-
-  history = json_object_get (json,
-                             "history");
-  if (GNUNET_OK !=
-      TALER_MINT_verify_coin_history_ (dh->coin_value.currency,
-                                       &dh->depconf.coin_pub,
-                                       history,
-                                       &total))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  if (GNUNET_OK !=
-      TALER_amount_add (&total,
-                        &total,
-                        &dh->amount_with_fee))
-  {
-    /* clearly not OK if our transaction would have caused
-       the overflow... */
-    return GNUNET_OK;
-  }
-
-  if (0 >= TALER_amount_cmp (&total,
-                             &dh->coin_value))
-  {
-    /* transaction should have still fit */
-    GNUNET_break (0);
-    return GNUNET_SYSERR;
-  }
-  /* everything OK, proof of double-spending was provided */
-  return GNUNET_OK;
-}
-
-
-/**
- * Function called when we're done processing the
- * HTTP /deposit request.
- *
- * @param cls the `struct TALER_MINT_DepositHandle`
- * @param eh the curl request handle
- */
-static void
-handle_deposit_finished (void *cls,
-                         CURL *eh)
-{
-  struct TALER_MINT_DepositHandle *dh = cls;
-  long response_code;
-  json_t *json;
-
-  dh->job = NULL;
-  json = MAC_download_get_result (&dh->db,
-                                  eh,
-                                  &response_code);
-  switch (response_code)
-  {
-  case 0:
-    break;
-  case MHD_HTTP_OK:
-    if (GNUNET_OK !=
-        verify_deposit_signature_ok (dh,
-                                     json))
-    {
-      GNUNET_break_op (0);
-      response_code = 0;
-    }
-    break;
-  case MHD_HTTP_BAD_REQUEST:
-    /* This should never happen, either us or the mint is buggy
-       (or API version conflict); just pass JSON reply to the application */
-    break;
-  case MHD_HTTP_FORBIDDEN:
-    /* Double spending; check signatures on transaction history */
-    if (GNUNET_OK !=
-        verify_deposit_signature_forbidden (dh,
-                                            json))
-    {
-      GNUNET_break_op (0);
-      response_code = 0;
-    }
-    break;
-  case MHD_HTTP_UNAUTHORIZED:
-    /* Nothing really to verify, mint says one of the signatures is
-       invalid; as we checked them, this should never happen, we
-       should pass the JSON reply to the application */
-    break;
-  case MHD_HTTP_NOT_FOUND:
-    /* Nothing really to verify, this should never
-       happen, we should pass the JSON reply to the application */
-    break;
-  case MHD_HTTP_INTERNAL_SERVER_ERROR:
-    /* Server had an internal issue; we should retry, but this API
-       leaves this to the application */
-    break;
-  default:
-    /* unexpected response code */
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u\n",
-                response_code);
-    GNUNET_break (0);
-    response_code = 0;
-    break;
-  }
-  dh->cb (dh->cb_cls,
-          response_code,
-          json);
-  json_decref (json);
-  TALER_MINT_deposit_cancel (dh);
-}
-
-
-/**
- * Verify signature information about the deposit.
- *
- * @param dki public key information
- * @param amount the amount to be deposited
- * @param h_wire hash of the merchant’s account details
- * @param h_contract hash of the contact of the merchant with the customer (further details are never disclosed to the mint)
- * @param coin_pub coin’s public key
- * @param denom_pub denomination key with which the coin is signed
- * @param denom_sig mint’s unblinded signature of the coin
- * @param timestamp timestamp when the contract was finalized, must match approximately the current time of the mint
- * @param transaction_id transaction id for the transaction between merchant and customer
- * @param merchant_pub the public key of the merchant (used to identify the merchant for refund requests)
- * @param refund_deadline date until which the merchant can issue a refund to the customer via the mint (can be zero if refunds are not allowed)
- * @param coin_sig the signature made with purpose #TALER_SIGNATURE_WALLET_COIN_DEPOSIT made by the customer with the coin’s private key.
- * @return #GNUNET_OK if signatures are OK, #GNUNET_SYSERR if not
- */
-static int
-verify_signatures (const struct TALER_MINT_DenomPublicKey *dki,
-                   const struct TALER_Amount *amount,
-                   const struct GNUNET_HashCode *h_wire,
-                   const struct GNUNET_HashCode *h_contract,
-                   const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                   const struct TALER_DenominationSignature *denom_sig,
-                   const struct TALER_DenominationPublicKey *denom_pub,
-                   struct GNUNET_TIME_Absolute timestamp,
-                   uint64_t transaction_id,
-                   const struct TALER_MerchantPublicKeyP *merchant_pub,
-                   struct GNUNET_TIME_Absolute refund_deadline,
-                   const struct TALER_CoinSpendSignatureP *coin_sig)
-{
-  struct TALER_DepositRequestPS dr;
-  struct TALER_CoinPublicInfo coin_info;
-
-  dr.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_DEPOSIT);
-  dr.purpose.size = htonl (sizeof (struct TALER_DepositRequestPS));
-  dr.h_contract = *h_contract;
-  dr.h_wire = *h_wire;
-  dr.timestamp = GNUNET_TIME_absolute_hton (timestamp);
-  dr.refund_deadline = GNUNET_TIME_absolute_hton (refund_deadline);
-  dr.transaction_id = GNUNET_htonll (transaction_id);
-  TALER_amount_hton (&dr.amount_with_fee,
-                     amount);
-  TALER_amount_hton (&dr.deposit_fee,
-                     &dki->fee_deposit);
-  dr.merchant = *merchant_pub;
-  dr.coin_pub = *coin_pub;
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_DEPOSIT,
-                                  &dr.purpose,
-                                  &coin_sig->eddsa_signature,
-                                  &coin_pub->eddsa_pub))
-  {
-    TALER_LOG_WARNING ("Invalid coin signature on /deposit request\n");
-    {
-      char *s;
-      s = TALER_amount_to_string (amount);
-      TALER_LOG_DEBUG ("... amount_with_fee was %s\n", s);
-      GNUNET_free (s);
-      s = TALER_amount_to_string (&dki->fee_deposit);
-      TALER_LOG_DEBUG ("... deposit_fee was %s\n", s);
-      GNUNET_free (s);
-    }
-
-    return GNUNET_SYSERR;
-  }
-
-  /* check coin signature */
-  coin_info.coin_pub = *coin_pub;
-  coin_info.denom_pub = *denom_pub;
-  coin_info.denom_sig = *denom_sig;
-  if (GNUNET_YES !=
-      TALER_test_coin_valid (&coin_info))
-  {
-    TALER_LOG_WARNING ("Invalid coin passed for /deposit\n");
-    return GNUNET_SYSERR;
-  }
-  if (0 < TALER_amount_cmp (&dki->fee_deposit,
-                            amount))
-  {
-    TALER_LOG_WARNING ("Deposit amount smaller than fee\n");
-    return GNUNET_SYSERR;
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Submit a deposit permission to the mint and get the mint's response.
- * Note that while we return the response verbatim to the caller for
- * further processing, we do already verify that the response is
- * well-formed (i.e. that signatures included in the response are all
- * valid).  If the mint's reply is not well-formed, we return an
- * HTTP status code of zero to @a cb.
- *
- * We also verify that the @a coin_sig is valid for this deposit
- * request, and that the @a ub_sig is a valid signature for @a
- * coin_pub.  Also, the @a mint must be ready to operate (i.e.  have
- * finished processing the /keys reply).  If either check fails, we do
- * NOT initiate the transaction with the mint and instead return NULL.
- *
- * @param mint the mint handle; the mint must be ready to operate
- * @param amount the amount to be deposited
- * @param wire_deadline date until which the merchant would like the mint to settle the balance (advisory, the mint cannot be
- *        forced to settle in the past or upon very short notice, but of course a well-behaved mint will limit aggregation based on the advice received)
- * @param wire_details the merchant’s account details, in a format supported by the mint
- * @param h_contract hash of the contact of the merchant with the customer (further details are never disclosed to the mint)
- * @param coin_pub coin’s public key
- * @param denom_pub denomination key with which the coin is signed
- * @param denom_sig mint’s unblinded signature of the coin
- * @param timestamp timestamp when the contract was finalized, must match approximately the current time of the mint
- * @param transaction_id transaction id for the transaction between merchant and customer
- * @param merchant_pub the public key of the merchant (used to identify the merchant for refund requests)
- * @param refund_deadline date until which the merchant can issue a refund to the customer via the mint (can be zero if refunds are not allowed)
- * @param coin_sig the signature made with purpose #TALER_SIGNATURE_WALLET_COIN_DEPOSIT made by the customer with the coin’s private key.
- * @param cb the callback to call when a reply for this request is available
- * @param cb_cls closure for the above callback
- * @return a handle for this request; NULL if the inputs are invalid (i.e.
- *         signatures fail to verify).  In this case, the callback is not called.
- */
-struct TALER_MINT_DepositHandle *
-TALER_MINT_deposit (struct TALER_MINT_Handle *mint,
-                    const struct TALER_Amount *amount,
-                    struct GNUNET_TIME_Absolute wire_deadline,
-                    json_t *wire_details,
-                    const struct GNUNET_HashCode *h_contract,
-                    const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                    const struct TALER_DenominationSignature *denom_sig,
-                    const struct TALER_DenominationPublicKey *denom_pub,
-                    struct GNUNET_TIME_Absolute timestamp,
-                    uint64_t transaction_id,
-                    const struct TALER_MerchantPublicKeyP *merchant_pub,
-                    struct GNUNET_TIME_Absolute refund_deadline,
-                    const struct TALER_CoinSpendSignatureP *coin_sig,
-                    TALER_MINT_DepositResultCallback cb,
-                    void *cb_cls)
-{
-  const struct TALER_MINT_Keys *key_state;
-  const struct TALER_MINT_DenomPublicKey *dki;
-  struct TALER_MINT_DepositHandle *dh;
-  struct TALER_MINT_Context *ctx;
-  json_t *deposit_obj;
-  CURL *eh;
-  struct GNUNET_HashCode h_wire;
-  struct TALER_Amount amount_without_fee;
-
-  (void) TALER_round_abs_time (&wire_deadline);
-  if (GNUNET_YES !=
-      MAH_handle_is_ready (mint))
-  {
-    GNUNET_break (0);
-    return NULL;
-  }
-  /* initialize h_wire */
-  if (GNUNET_OK !=
-      TALER_hash_json (wire_details,
-                       &h_wire))
-  {
-    GNUNET_break (0);
-    return NULL;
-  }
-  key_state = TALER_MINT_get_keys (mint);
-  dki = TALER_MINT_get_denomination_key (key_state,
-                                         denom_pub);
-  if (NULL == dki)
-  {
-    TALER_LOG_WARNING ("Denomination key unknown to mint\n");
-    return NULL;
-  }
-  if (GNUNET_SYSERR ==
-      TALER_amount_subtract (&amount_without_fee,
-                             amount,
-                             &dki->fee_deposit))
-  {
-    GNUNET_break (0);
-    return NULL;
-  }
-
-  if (GNUNET_OK !=
-      verify_signatures (dki,
-                         amount,
-                         &h_wire,
-                         h_contract,
-                         coin_pub,
-                         denom_sig,
-                         denom_pub,
-                         timestamp,
-                         transaction_id,
-                         merchant_pub,
-                         refund_deadline,
-                         coin_sig))
-  {
-    GNUNET_break_op (0);
-    return NULL;
-  }
-
-  deposit_obj = json_pack ("{s:o, s:O," /* f/wire */
-                           " s:o, s:o," /* H_wire, H_contract */
-                           " s:o, s:o," /* coin_pub, denom_pub */
-                           " s:o, s:o," /* ub_sig, timestamp */
-                           " s:I, s:o," /* transaction id, merchant_pub */
-                           " s:o, s:o," /* refund_deadline, wire_deadline */
-                           " s:o}",     /* coin_sig */
-                           "f", TALER_json_from_amount (amount),
-                           "wire", wire_details,
-                           "H_wire", TALER_json_from_data (&h_wire,
-                                                           sizeof (h_wire)),
-                           "H_contract", TALER_json_from_data (h_contract,
-                                                               sizeof (struct GNUNET_HashCode)),
-                           "coin_pub", TALER_json_from_data (coin_pub,
-                                                             sizeof (*coin_pub)),
-                           "denom_pub", TALER_json_from_rsa_public_key (denom_pub->rsa_public_key),
-                           "ub_sig", TALER_json_from_rsa_signature (denom_sig->rsa_signature),
-                           "timestamp", TALER_json_from_abs (timestamp),
-                           "transaction_id", (json_int_t) transaction_id,
-                           "merchant_pub", TALER_json_from_data (merchant_pub,
-                                                                 sizeof (*merchant_pub)),
-                           "refund_deadline", TALER_json_from_abs (refund_deadline),
-                           "edate", TALER_json_from_abs (wire_deadline),
-                           "coin_sig", TALER_json_from_data (coin_sig,
-                                                             sizeof (*coin_sig))
-                           );
-
-  dh = GNUNET_new (struct TALER_MINT_DepositHandle);
-  dh->mint = mint;
-  dh->cb = cb;
-  dh->cb_cls = cb_cls;
-  dh->url = MAH_path_to_url (mint, "/deposit");
-  dh->depconf.purpose.size = htonl (sizeof (struct TALER_DepositConfirmationPS));
-  dh->depconf.purpose.purpose = htonl (TALER_SIGNATURE_MINT_CONFIRM_DEPOSIT);
-  dh->depconf.h_contract = *h_contract;
-  dh->depconf.h_wire = h_wire;
-  dh->depconf.transaction_id = GNUNET_htonll (transaction_id);
-  dh->depconf.timestamp = GNUNET_TIME_absolute_hton (timestamp);
-  dh->depconf.refund_deadline = GNUNET_TIME_absolute_hton (refund_deadline);
-  TALER_amount_hton (&dh->depconf.amount_without_fee,
-                     &amount_without_fee);
-  dh->depconf.coin_pub = *coin_pub;
-  dh->depconf.merchant = *merchant_pub;
-  dh->amount_with_fee = *amount;
-  dh->coin_value = dki->value;
-
-  eh = curl_easy_init ();
-  GNUNET_assert (NULL != (dh->json_enc =
-                          json_dumps (deposit_obj,
-                                      JSON_COMPACT)));
-  json_decref (deposit_obj);
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "URL for deposit: `%s'\n",
-              dh->url);
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_URL,
-                                   dh->url));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_POSTFIELDS,
-                                   dh->json_enc));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_POSTFIELDSIZE,
-                                   strlen (dh->json_enc)));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEFUNCTION,
-                                   &MAC_download_cb));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEDATA,
-                                   &dh->db));
-  ctx = MAH_handle_to_context (mint);
-  dh->job = MAC_job_add (ctx,
-                         eh,
-                         GNUNET_YES,
-                         &handle_deposit_finished,
-                         dh);
-  return dh;
-}
-
-
-/**
- * Cancel a deposit permission request.  This function cannot be used
- * on a request handle if a response is already served for it.
- *
- * @param deposit the deposit permission request handle
- */
-void
-TALER_MINT_deposit_cancel (struct TALER_MINT_DepositHandle *deposit)
-{
-  if (NULL != deposit->job)
-  {
-    MAC_job_cancel (deposit->job);
-    deposit->job = NULL;
-  }
-  GNUNET_free_non_null (deposit->db.buf);
-  GNUNET_free (deposit->url);
-  GNUNET_free (deposit->json_enc);
-  GNUNET_free (deposit);
-}
-
-
-/* end of mint_api_deposit.c */
diff --git a/src/mint-lib/mint_api_deposit_wtid.c b/src/mint-lib/mint_api_deposit_wtid.c
deleted file mode 100644
index d29f406e3..000000000
--- a/src/mint-lib/mint_api_deposit_wtid.c
+++ /dev/null
@@ -1,379 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see
-  <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-lib/mint_api_deposit_wtid.c
- * @brief Implementation of the /deposit/wtid request of the mint's HTTP API
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <curl/curl.h>
-#include <jansson.h>
-#include <microhttpd.h> /* just for HTTP status codes */
-#include <gnunet/gnunet_util_lib.h>
-#include "taler_mint_service.h"
-#include "mint_api_common.h"
-#include "mint_api_json.h"
-#include "mint_api_context.h"
-#include "mint_api_handle.h"
-#include "taler_signatures.h"
-
-
-/**
- * @brief A Deposit Wtid Handle
- */
-struct TALER_MINT_DepositWtidHandle
-{
-
-  /**
-   * The connection to mint this request handle will use
-   */
-  struct TALER_MINT_Handle *mint;
-
-  /**
-   * The url for this request.
-   */
-  char *url;
-
-  /**
-   * JSON encoding of the request to POST.
-   */
-  char *json_enc;
-
-  /**
-   * Handle for the request.
-   */
-  struct MAC_Job *job;
-
-  /**
-   * Function to call with the result.
-   */
-  TALER_MINT_DepositWtidCallback cb;
-
-  /**
-   * Closure for @a cb.
-   */
-  void *cb_cls;
-
-  /**
-   * Download buffer
-   */
-  struct MAC_DownloadBuffer db;
-
-  /**
-   * Information the mint should sign in response.
-   * (with pre-filled fields from the request).
-   */
-  struct TALER_ConfirmWirePS depconf;
-
-};
-
-
-/**
- * Verify that the signature on the "200 OK" response
- * from the mint is valid.
- *
- * @param dwh deposit wtid handle
- * @param json json reply with the signature
- * @return #GNUNET_OK if the signature is valid, #GNUNET_SYSERR if not
- */
-static int
-verify_deposit_wtid_signature_ok (const struct TALER_MINT_DepositWtidHandle *dwh,
-                                  json_t *json)
-{
-  struct TALER_MintSignatureP mint_sig;
-  struct TALER_MintPublicKeyP mint_pub;
-  const struct TALER_MINT_Keys *key_state;
-  struct MAJ_Specification spec[] = {
-    MAJ_spec_fixed_auto ("mint_sig", &mint_sig),
-    MAJ_spec_fixed_auto ("mint_pub", &mint_pub),
-    MAJ_spec_end
-  };
-
-  if (GNUNET_OK !=
-      MAJ_parse_json (json,
-                      spec))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  key_state = TALER_MINT_get_keys (dwh->mint);
-  if (GNUNET_OK !=
-      TALER_MINT_test_signing_key (key_state,
-                                   &mint_pub))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MINT_CONFIRM_WIRE,
-                                  &dwh->depconf.purpose,
-                                  &mint_sig.eddsa_signature,
-                                  &mint_pub.eddsa_pub))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Function called when we're done processing the
- * HTTP /deposit/wtid request.
- *
- * @param cls the `struct TALER_MINT_DepositWtidHandle`
- * @param eh the curl request handle
- */
-static void
-handle_deposit_wtid_finished (void *cls,
-                              CURL *eh)
-{
-  struct TALER_MINT_DepositWtidHandle *dwh = cls;
-  long response_code;
-  json_t *json;
-  const struct TALER_WireTransferIdentifierRawP *wtid = NULL;
-  struct GNUNET_TIME_Absolute execution_time = GNUNET_TIME_UNIT_FOREVER_ABS;
-  const struct TALER_Amount *coin_contribution = NULL;
-  struct TALER_Amount coin_contribution_s;
-
-  dwh->job = NULL;
-  json = MAC_download_get_result (&dwh->db,
-                                  eh,
-                                  &response_code);
-  switch (response_code)
-  {
-  case 0:
-    break;
-  case MHD_HTTP_OK:
-    {
-      struct MAJ_Specification spec[] = {
-        MAJ_spec_fixed_auto ("wtid", &dwh->depconf.wtid),
-        MAJ_spec_absolute_time ("execution_time", &execution_time),
-        MAJ_spec_amount ("coin_contribution", &coin_contribution_s),
-        MAJ_spec_end
-      };
-
-      if (GNUNET_OK !=
-          MAJ_parse_json (json,
-                          spec))
-      {
-        GNUNET_break_op (0);
-        response_code = 0;
-        break;
-      }
-      wtid = &dwh->depconf.wtid;
-      dwh->depconf.execution_time = GNUNET_TIME_absolute_hton (execution_time);
-      TALER_amount_hton (&dwh->depconf.coin_contribution,
-                         &coin_contribution_s);
-      coin_contribution = &coin_contribution_s;
-      if (GNUNET_OK !=
-          verify_deposit_wtid_signature_ok (dwh,
-                                            json))
-      {
-        GNUNET_break_op (0);
-        response_code = 0;
-      }
-    }
-    break;
-  case MHD_HTTP_ACCEPTED:
-    {
-      /* Transaction known, but not executed yet */
-      struct MAJ_Specification spec[] = {
-        MAJ_spec_absolute_time ("execution_time", &execution_time),
-        MAJ_spec_end
-      };
-
-      if (GNUNET_OK !=
-          MAJ_parse_json (json,
-                          spec))
-      {
-        GNUNET_break_op (0);
-        response_code = 0;
-        break;
-      }
-    }
-    break;
-  case MHD_HTTP_BAD_REQUEST:
-    /* This should never happen, either us or the mint is buggy
-       (or API version conflict); just pass JSON reply to the application */
-    break;
-  case MHD_HTTP_UNAUTHORIZED:
-    /* Nothing really to verify, mint says one of the signatures is
-       invalid; as we checked them, this should never happen, we
-       should pass the JSON reply to the application */
-    break;
-  case MHD_HTTP_NOT_FOUND:
-    /* Mint does not know about transaction;
-       we should pass the reply to the application */
-    break;
-  case MHD_HTTP_INTERNAL_SERVER_ERROR:
-    /* Server had an internal issue; we should retry, but this API
-       leaves this to the application */
-    break;
-  default:
-    /* unexpected response code */
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u\n",
-                response_code);
-    GNUNET_break (0);
-    response_code = 0;
-    break;
-  }
-  dwh->cb (dwh->cb_cls,
-           response_code,
-           json,
-           wtid,
-           execution_time,
-           coin_contribution);
-  json_decref (json);
-  TALER_MINT_deposit_wtid_cancel (dwh);
-}
-
-
-/**
- * Obtain wire transfer details about an existing deposit operation.
- *
- * @param mint the mint to query
- * @param merchant_priv the merchant's private key
- * @param h_wire hash of merchant's wire transfer details
- * @param h_contract hash of the contract
- * @param coin_pub public key of the coin
- * @param transaction_id transaction identifier
- * @param cb function to call with the result
- * @param cb_cls closure for @a cb
- * @return handle to abort request
- */
-struct TALER_MINT_DepositWtidHandle *
-TALER_MINT_deposit_wtid (struct TALER_MINT_Handle *mint,
-                         const struct TALER_MerchantPrivateKeyP *merchant_priv,
-                         const struct GNUNET_HashCode *h_wire,
-                         const struct GNUNET_HashCode *h_contract,
-                         const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                         uint64_t transaction_id,
-                         TALER_MINT_DepositWtidCallback cb,
-                         void *cb_cls)
-{
-  struct TALER_DepositTrackPS dtp;
-  struct TALER_MerchantSignatureP merchant_sig;
-  struct TALER_MINT_DepositWtidHandle *dwh;
-  struct TALER_MINT_Context *ctx;
-  json_t *deposit_wtid_obj;
-  CURL *eh;
-
-  if (GNUNET_YES !=
-      MAH_handle_is_ready (mint))
-  {
-    GNUNET_break (0);
-    return NULL;
-  }
-  dtp.purpose.purpose = htonl (TALER_SIGNATURE_MERCHANT_DEPOSIT_WTID);
-  dtp.purpose.size = htonl (sizeof (dtp));
-  dtp.h_contract = *h_contract;
-  dtp.h_wire = *h_wire;
-  dtp.transaction_id = GNUNET_htonll (transaction_id);
-  GNUNET_CRYPTO_eddsa_key_get_public (&merchant_priv->eddsa_priv,
-                                      &dtp.merchant.eddsa_pub);
-
-  dtp.coin_pub = *coin_pub;
-  GNUNET_assert (GNUNET_OK ==
-                 GNUNET_CRYPTO_eddsa_sign (&merchant_priv->eddsa_priv,
-                                           &dtp.purpose,
-                                           &merchant_sig.eddsa_sig));
-  deposit_wtid_obj = json_pack ("{s:o, s:o," /* H_wire, H_contract */
-                                " s:o, s:I," /* coin_pub, transaction_id */
-                                " s:o, s:o}", /* merchant_pub, merchant_sig */
-                                "H_wire", TALER_json_from_data (h_wire,
-                                                                sizeof (struct GNUNET_HashCode)),
-                                "H_contract", TALER_json_from_data (h_contract,
-                                                                    sizeof (struct GNUNET_HashCode)),
-                                "coin_pub", TALER_json_from_data (coin_pub,
-                                                                  sizeof (*coin_pub)),
-                                "transaction_id", (json_int_t) transaction_id,
-                                "merchant_pub", TALER_json_from_data (&dtp.merchant,
-                                                                      sizeof (struct TALER_MerchantPublicKeyP)),
-                                "merchant_sig", TALER_json_from_data (&merchant_sig,
-                                                                      sizeof (merchant_sig)));
-
-  dwh = GNUNET_new (struct TALER_MINT_DepositWtidHandle);
-  dwh->mint = mint;
-  dwh->cb = cb;
-  dwh->cb_cls = cb_cls;
-  dwh->url = MAH_path_to_url (mint, "/deposit/wtid");
-  dwh->depconf.purpose.size = htonl (sizeof (struct TALER_DepositConfirmationPS));
-  dwh->depconf.purpose.purpose = htonl (TALER_SIGNATURE_MINT_CONFIRM_WIRE);
-  dwh->depconf.h_wire = *h_wire;
-  dwh->depconf.h_contract = *h_contract;
-  dwh->depconf.coin_pub = *coin_pub;
-  dwh->depconf.transaction_id = GNUNET_htonll (transaction_id);
-
-  eh = curl_easy_init ();
-  GNUNET_assert (NULL != (dwh->json_enc =
-                          json_dumps (deposit_wtid_obj,
-                                      JSON_COMPACT)));
-  json_decref (deposit_wtid_obj);
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_URL,
-                                   dwh->url));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_POSTFIELDS,
-                                   dwh->json_enc));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_POSTFIELDSIZE,
-                                   strlen (dwh->json_enc)));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEFUNCTION,
-                                   &MAC_download_cb));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEDATA,
-                                   &dwh->db));
-  ctx = MAH_handle_to_context (mint);
-  dwh->job = MAC_job_add (ctx,
-                          eh,
-                          GNUNET_YES,
-                          &handle_deposit_wtid_finished,
-                          dwh);
-  return dwh;
-}
-
-
-/**
- * Cancel deposit wtid request.  This function cannot be used on a request
- * handle if a response is already served for it.
- *
- * @param dwh the wire deposits request handle
- */
-void
-TALER_MINT_deposit_wtid_cancel (struct TALER_MINT_DepositWtidHandle *dwh)
-{
-  if (NULL != dwh->job)
-  {
-    MAC_job_cancel (dwh->job);
-    dwh->job = NULL;
-  }
-  GNUNET_free_non_null (dwh->db.buf);
-  GNUNET_free (dwh->url);
-  GNUNET_free (dwh->json_enc);
-  GNUNET_free (dwh);
-}
-
-
-/* end of mint_api_deposit_wtid.c */
diff --git a/src/mint-lib/mint_api_handle.c b/src/mint-lib/mint_api_handle.c
deleted file mode 100644
index ef26cd838..000000000
--- a/src/mint-lib/mint_api_handle.c
+++ /dev/null
@@ -1,902 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see
-  <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-lib/mint_api_handle.c
- * @brief Implementation of the "handle" component of the mint's HTTP API
- * @author Sree Harsha Totakura <sreeharsha@totakura.in>
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <curl/curl.h>
-#include <jansson.h>
-#include <gnunet/gnunet_util_lib.h>
-#include <microhttpd.h>
-#include "taler_mint_service.h"
-#include "taler_signatures.h"
-#include "mint_api_context.h"
-#include "mint_api_json.h"
-#include "mint_api_handle.h"
-
-
-/**
- * Log error related to CURL operations.
- *
- * @param type log level
- * @param function which function failed to run
- * @param code what was the curl error code
- */
-#define CURL_STRERROR(type, function, code)      \
- GNUNET_log (type, "Curl function `%s' has failed at `%s:%d' with error: %s", \
-             function, __FILE__, __LINE__, curl_easy_strerror (code));
-
-
-/**
- * Stages of initialization for the `struct TALER_MINT_Handle`
- */
-enum MintHandleState
-{
-  /**
-   * Just allocated.
-   */
-  MHS_INIT = 0,
-
-  /**
-   * Obtained the mint's certification data and keys.
-   */
-  MHS_CERT = 1,
-
-  /**
-   * Failed to initialize (fatal).
-   */
-  MHS_FAILED = 2
-};
-
-
-/**
- * Data for the request to get the /keys of a mint.
- */
-struct KeysRequest;
-
-
-/**
- * Handle to the mint
- */
-struct TALER_MINT_Handle
-{
-  /**
-   * The context of this handle
-   */
-  struct TALER_MINT_Context *ctx;
-
-  /**
-   * The URL of the mint (i.e. "http://mint.taler.net/")
-   */
-  char *url;
-
-  /**
-   * Function to call with the mint's certification data,
-   * NULL if this has already been done.
-   */
-  TALER_MINT_CertificationCallback cert_cb;
-
-  /**
-   * Closure to pass to @e cert_cb.
-   */
-  void *cert_cb_cls;
-
-  /**
-   * Data for the request to get the /keys of a mint,
-   * NULL once we are past stage #MHS_INIT.
-   */
-  struct KeysRequest *kr;
-
-  /**
-   * Key data of the mint, only valid if
-   * @e handshake_complete is past stage #MHS_CERT.
-   */
-  struct TALER_MINT_Keys key_data;
-
-  /**
-   * Stage of the mint's initialization routines.
-   */
-  enum MintHandleState state;
-
-};
-
-
-/* ***************** Internal /keys fetching ************* */
-
-/**
- * Data for the request to get the /keys of a mint.
- */
-struct KeysRequest
-{
-  /**
-   * The connection to mint this request handle will use
-   */
-  struct TALER_MINT_Handle *mint;
-
-  /**
-   * The url for this handle
-   */
-  char *url;
-
-  /**
-   * Entry for this request with the `struct TALER_MINT_Context`.
-   */
-  struct MAC_Job *job;
-
-  /**
-   * Data structure for the download.
-   */
-  struct MAC_DownloadBuffer db;
-
-};
-
-
-/**
- * Release memory occupied by a keys request.
- * Note that this does not cancel the request
- * itself.
- *
- * @param kr request to free
- */
-static void
-free_keys_request (struct KeysRequest *kr)
-{
-  GNUNET_free_non_null (kr->db.buf);
-  GNUNET_free (kr->url);
-  GNUNET_free (kr);
-}
-
-
-#define EXITIF(cond)                                              \
-  do {                                                            \
-    if (cond) { GNUNET_break (0); goto EXITIF_exit; }             \
-  } while (0)
-
-
-/**
- * Parse a mint's signing key encoded in JSON.
- *
- * @param[out] sign_key where to return the result
- * @param[in] sign_key_obj json to parse
- * @param master_key master key to use to verify signature
- * @return #GNUNET_OK if all is fine, #GNUNET_SYSERR if the signature is
- *        invalid or the json malformed.
- */
-static int
-parse_json_signkey (struct TALER_MINT_SigningPublicKey *sign_key,
-                    json_t *sign_key_obj,
-                    const struct TALER_MasterPublicKeyP *master_key)
-{
-  struct TALER_MintSigningKeyValidityPS sign_key_issue;
-  struct GNUNET_CRYPTO_EddsaSignature sig;
-  struct GNUNET_TIME_Absolute valid_from;
-  struct GNUNET_TIME_Absolute valid_until;
-  struct GNUNET_TIME_Absolute valid_legal;
-  struct MAJ_Specification spec[] = {
-    MAJ_spec_fixed_auto ("master_sig",
-                         &sig),
-    MAJ_spec_fixed_auto ("key",
-                         &sign_key_issue.signkey_pub),
-    MAJ_spec_absolute_time ("stamp_start",
-                            &valid_from),
-    MAJ_spec_absolute_time ("stamp_expire",
-                            &valid_until),
-    MAJ_spec_absolute_time ("stamp_end",
-                            &valid_legal),
-    MAJ_spec_end
-  };
-
-  if (GNUNET_OK !=
-      MAJ_parse_json (sign_key_obj,
-                      spec))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-
-  sign_key_issue.purpose.purpose = htonl (TALER_SIGNATURE_MASTER_SIGNING_KEY_VALIDITY);
-  sign_key_issue.purpose.size =
-    htonl (sizeof (struct TALER_MintSigningKeyValidityPS)
-           - offsetof (struct TALER_MintSigningKeyValidityPS,
-                       purpose));
-  sign_key_issue.master_public_key = *master_key;
-  sign_key_issue.start = GNUNET_TIME_absolute_hton (valid_from);
-  sign_key_issue.expire = GNUNET_TIME_absolute_hton (valid_until);
-  sign_key_issue.end = GNUNET_TIME_absolute_hton (valid_legal);
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MASTER_SIGNING_KEY_VALIDITY,
-                                  &sign_key_issue.purpose,
-                                  &sig,
-                                  &master_key->eddsa_pub))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  sign_key->valid_from = valid_from;
-  sign_key->valid_until = valid_until;
-  sign_key->key = sign_key_issue.signkey_pub;
-  return GNUNET_OK;
-}
-
-
-/**
- * Parse a mint's denomination key encoded in JSON.
- *
- * @param[out] denom_key where to return the result
- * @param[in] denom_key_obj json to parse
- * @param master_key master key to use to verify signature
- * @param hash_context where to accumulate data for signature verification
- * @return #GNUNET_OK if all is fine, #GNUNET_SYSERR if the signature is
- *        invalid or the json malformed.
- */
-static int
-parse_json_denomkey (struct TALER_MINT_DenomPublicKey *denom_key,
-                     json_t *denom_key_obj,
-                     struct TALER_MasterPublicKeyP *master_key,
-                     struct GNUNET_HashContext *hash_context)
-{
-  struct GNUNET_TIME_Absolute valid_from;
-  struct GNUNET_TIME_Absolute withdraw_valid_until;
-  struct GNUNET_TIME_Absolute deposit_valid_until;
-  struct GNUNET_TIME_Absolute expire_legal;
-  struct TALER_Amount value;
-  struct TALER_Amount fee_withdraw;
-  struct TALER_Amount fee_deposit;
-  struct TALER_Amount fee_refresh;
-  struct TALER_DenominationKeyValidityPS denom_key_issue;
-  struct GNUNET_CRYPTO_rsa_PublicKey *pk;
-  struct GNUNET_CRYPTO_EddsaSignature sig;
-
-  struct MAJ_Specification spec[] = {
-    MAJ_spec_fixed_auto ("master_sig",
-                         &sig),
-    MAJ_spec_absolute_time ("stamp_expire_deposit",
-                            &deposit_valid_until),
-    MAJ_spec_absolute_time ("stamp_expire_withdraw",
-                            &withdraw_valid_until),
-    MAJ_spec_absolute_time ("stamp_start",
-                            &valid_from),
-    MAJ_spec_absolute_time ("stamp_expire_legal",
-                            &expire_legal),
-    MAJ_spec_amount ("value",
-                     &value),
-    MAJ_spec_amount ("fee_withdraw",
-                     &fee_withdraw),
-    MAJ_spec_amount ("fee_deposit",
-                     &fee_deposit),
-    MAJ_spec_amount ("fee_refresh",
-                     &fee_refresh),
-    MAJ_spec_rsa_public_key ("denom_pub",
-                             &pk),
-    MAJ_spec_end
-  };
-
-  if (GNUNET_OK !=
-      MAJ_parse_json (denom_key_obj,
-                      spec))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-
-  memset (&denom_key_issue, 0, sizeof (denom_key_issue));
-  GNUNET_CRYPTO_rsa_public_key_hash (pk,
-                                     &denom_key_issue.denom_hash);
-  denom_key_issue.purpose.purpose
-    = htonl (TALER_SIGNATURE_MASTER_DENOMINATION_KEY_VALIDITY);
-  denom_key_issue.purpose.size
-    = htonl (sizeof (struct TALER_DenominationKeyValidityPS));
-  denom_key_issue.master = *master_key;
-  denom_key_issue.start = GNUNET_TIME_absolute_hton (valid_from);
-  denom_key_issue.expire_withdraw = GNUNET_TIME_absolute_hton (withdraw_valid_until);
-  denom_key_issue.expire_spend = GNUNET_TIME_absolute_hton (deposit_valid_until);
-  denom_key_issue.expire_legal = GNUNET_TIME_absolute_hton (expire_legal);
-  TALER_amount_hton (&denom_key_issue.value,
-                     &value);
-  TALER_amount_hton (&denom_key_issue.fee_withdraw,
-                     &fee_withdraw);
-  TALER_amount_hton (&denom_key_issue.fee_deposit,
-                     &fee_deposit);
-  TALER_amount_hton (&denom_key_issue.fee_refresh,
-                     &fee_refresh);
-  EXITIF (GNUNET_SYSERR ==
-          GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MASTER_DENOMINATION_KEY_VALIDITY,
-                                      &denom_key_issue.purpose,
-                                      &sig,
-                                      &master_key->eddsa_pub));
-  GNUNET_CRYPTO_hash_context_read (hash_context,
-                                   &denom_key_issue.denom_hash,
-                                   sizeof (struct GNUNET_HashCode));
-  denom_key->key.rsa_public_key = pk;
-  denom_key->h_key = denom_key_issue.denom_hash;
-  denom_key->valid_from = valid_from;
-  denom_key->withdraw_valid_until = withdraw_valid_until;
-  denom_key->deposit_valid_until = deposit_valid_until;
-  denom_key->expire_legal = expire_legal;
-  denom_key->value = value;
-  denom_key->fee_withdraw = fee_withdraw;
-  denom_key->fee_deposit = fee_deposit;
-  denom_key->fee_refresh = fee_refresh;
-  return GNUNET_OK;
-
- EXITIF_exit:
-  MAJ_parse_free (spec);
-  return GNUNET_SYSERR;
-}
-
-
-/**
- * Parse a mint's auditor information encoded in JSON.
- *
- * @param[out] auditor where to return the result
- * @param[in] auditor_obj json to parse
- * @param key_data information about denomination keys
- * @return #GNUNET_OK if all is fine, #GNUNET_SYSERR if the signature is
- *        invalid or the json malformed.
- */
-static int
-parse_json_auditor (struct TALER_MINT_AuditorInformation *auditor,
-                    json_t *auditor_obj,
-                    const struct TALER_MINT_Keys *key_data)
-{
-  json_t *keys;
-  json_t *key;
-  unsigned int len;
-  unsigned int off;
-  unsigned int i;
-  struct TALER_MintKeyValidityPS kv;
-  struct MAJ_Specification spec[] = {
-    MAJ_spec_fixed_auto ("auditor_pub",
-                         &auditor->auditor_pub),
-    MAJ_spec_json ("denomination_keys",
-                   &keys),
-    MAJ_spec_end
-  };
-
-  auditor->auditor_url = NULL; /* #3987 */
-  if (GNUNET_OK !=
-      MAJ_parse_json (auditor_obj,
-                      spec))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  kv.purpose.purpose = htonl (TALER_SIGNATURE_AUDITOR_MINT_KEYS);
-  kv.purpose.size = htonl (sizeof (struct TALER_MintKeyValidityPS));
-  kv.master = key_data->master_pub;
-  len = json_array_size (keys);
-  auditor->denom_keys = GNUNET_new_array (len,
-                                          const struct TALER_MINT_DenomPublicKey *);
-  i = 0;
-  off = 0;
-  json_array_foreach (keys, i, key) {
-    struct TALER_AuditorSignatureP auditor_sig;
-    struct GNUNET_HashCode denom_h;
-    const struct TALER_MINT_DenomPublicKey *dk;
-    unsigned int j;
-    struct MAJ_Specification spec[] = {
-      MAJ_spec_fixed_auto ("denom_pub_h",
-                           &denom_h),
-      MAJ_spec_fixed_auto ("auditor_sig",
-                           &auditor_sig),
-      MAJ_spec_end
-    };
-
-    if (GNUNET_OK !=
-        MAJ_parse_json (key,
-                        spec))
-      {
-      GNUNET_break_op (0);
-      continue;
-    }
-    dk = NULL;
-    for (j=0;j<key_data->num_denom_keys;j++)
-    {
-      if (0 == memcmp (&denom_h,
-                       &key_data->denom_keys[j].h_key,
-                       sizeof (struct GNUNET_HashCode)))
-      {
-        dk = &key_data->denom_keys[j];
-        break;
-      }
-    }
-    if (NULL == dk)
-    {
-      GNUNET_break_op (0);
-      continue;
-    }
-    kv.start = GNUNET_TIME_absolute_hton (dk->valid_from);
-    kv.expire_withdraw = GNUNET_TIME_absolute_hton (dk->withdraw_valid_until);
-    kv.expire_spend = GNUNET_TIME_absolute_hton (dk->deposit_valid_until);
-    kv.expire_legal = GNUNET_TIME_absolute_hton (dk->expire_legal);
-    TALER_amount_hton (&kv.value,
-                       &dk->value);
-    TALER_amount_hton (&kv.fee_withdraw,
-                       &dk->fee_withdraw);
-    TALER_amount_hton (&kv.fee_deposit,
-                       &dk->fee_deposit);
-    TALER_amount_hton (&kv.fee_refresh,
-                       &dk->fee_refresh);
-    kv.denom_hash = dk->h_key;
-    if (GNUNET_OK !=
-        GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_AUDITOR_MINT_KEYS,
-                                    &kv.purpose,
-                                    &auditor_sig.eddsa_sig,
-                                    &auditor->auditor_pub.eddsa_pub))
-    {
-      GNUNET_break_op (0);
-      continue;
-    }
-    auditor->denom_keys[off] = dk;
-    off++;
-  }
-  auditor->num_denom_keys = off;
-  return GNUNET_OK;
-}
-
-
-/**
- * Decode the JSON in @a resp_obj from the /keys response and store the data
- * in the @a key_data.
- *
- * @param[in] resp_obj JSON object to parse
- * @param[out] key_data where to store the results we decoded
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error (malformed JSON)
- */
-static int
-decode_keys_json (json_t *resp_obj,
-                  struct TALER_MINT_Keys *key_data)
-{
-  struct GNUNET_TIME_Absolute list_issue_date;
-  struct TALER_MintSignatureP sig;
-  struct TALER_MintKeySetPS ks;
-  struct GNUNET_HashContext *hash_context;
-  struct TALER_MintPublicKeyP pub;
-
-  if (JSON_OBJECT != json_typeof (resp_obj))
-    return GNUNET_SYSERR;
-
-  hash_context = GNUNET_CRYPTO_hash_context_start ();
-  /* parse the master public key and issue date of the response */
-  {
-    struct MAJ_Specification spec[] = {
-      MAJ_spec_fixed_auto ("master_public_key",
-                           &key_data->master_pub),
-      MAJ_spec_fixed_auto ("eddsa_sig",
-                           &sig),
-      MAJ_spec_fixed_auto ("eddsa_pub",
-                           &pub),
-      MAJ_spec_absolute_time ("list_issue_date",
-                              &list_issue_date),
-      MAJ_spec_end
-    };
-
-    EXITIF (GNUNET_OK !=
-            MAJ_parse_json (resp_obj,
-                            spec));
-  }
-
-  /* parse the signing keys */
-  {
-    json_t *sign_keys_array;
-    json_t *sign_key_obj;
-    unsigned int index;
-
-    EXITIF (NULL == (sign_keys_array =
-                     json_object_get (resp_obj,
-                                      "signkeys")));
-    EXITIF (JSON_ARRAY != json_typeof (sign_keys_array));
-    EXITIF (0 == (key_data->num_sign_keys =
-                  json_array_size (sign_keys_array)));
-    key_data->sign_keys
-      = GNUNET_new_array (key_data->num_sign_keys,
-                          struct TALER_MINT_SigningPublicKey);
-    index = 0;
-    json_array_foreach (sign_keys_array, index, sign_key_obj) {
-      EXITIF (GNUNET_SYSERR ==
-              parse_json_signkey (&key_data->sign_keys[index],
-                                  sign_key_obj,
-                                  &key_data->master_pub));
-    }
-  }
-
-  /* parse the denomination keys */
-  {
-    json_t *denom_keys_array;
-    json_t *denom_key_obj;
-    unsigned int index;
-
-    EXITIF (NULL == (denom_keys_array =
-                     json_object_get (resp_obj, "denoms")));
-    EXITIF (JSON_ARRAY != json_typeof (denom_keys_array));
-    EXITIF (0 == (key_data->num_denom_keys = json_array_size (denom_keys_array)));
-    key_data->denom_keys = GNUNET_new_array (key_data->num_denom_keys,
-                                             struct TALER_MINT_DenomPublicKey);
-    index = 0;
-    json_array_foreach (denom_keys_array, index, denom_key_obj) {
-      EXITIF (GNUNET_SYSERR ==
-              parse_json_denomkey (&key_data->denom_keys[index],
-                                   denom_key_obj,
-                                   &key_data->master_pub,
-                                   hash_context));
-    }
-  }
-
-  /* parse the auditor information */
-  {
-    json_t *auditors_array;
-    json_t *auditor_info;
-    unsigned int len;
-    unsigned int index;
-
-    EXITIF (NULL == (auditors_array =
-                     json_object_get (resp_obj, "auditors")));
-    EXITIF (JSON_ARRAY != json_typeof (auditors_array));
-    len = json_array_size (auditors_array);
-    if (0 != len)
-    {
-      key_data->auditors = GNUNET_new_array (len,
-                                             struct TALER_MINT_AuditorInformation);
-      index = 0;
-      json_array_foreach (auditors_array, index, auditor_info) {
-        EXITIF (GNUNET_SYSERR ==
-                parse_json_auditor (&key_data->auditors[index],
-                                    auditor_info,
-                                    key_data));
-      }
-    }
-  }
-
-  /* Validate signature... */
-  ks.purpose.size = htonl (sizeof (ks));
-  ks.purpose.purpose = htonl (TALER_SIGNATURE_MINT_KEY_SET);
-  ks.list_issue_date = GNUNET_TIME_absolute_hton (list_issue_date);
-  GNUNET_CRYPTO_hash_context_finish (hash_context,
-                                     &ks.hc);
-  hash_context = NULL;
-  EXITIF (GNUNET_OK !=
-          TALER_MINT_test_signing_key (key_data,
-                                       &pub));
-  EXITIF (GNUNET_OK !=
-          GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MINT_KEY_SET,
-                                      &ks.purpose,
-                                      &sig.eddsa_signature,
-                                      &pub.eddsa_pub));
-  return GNUNET_OK;
- EXITIF_exit:
-
-  if (NULL != hash_context)
-    GNUNET_CRYPTO_hash_context_abort (hash_context);
-  return GNUNET_SYSERR;
-}
-
-
-/**
- * Callback used when downloading the reply to a /keys request
- * is complete.
- *
- * @param cls the `struct KeysRequest`
- * @param eh easy handle of the original request
- */
-static void
-keys_completed_cb (void *cls,
-                   CURL *eh)
-{
-  struct KeysRequest *kr = cls;
-  struct TALER_MINT_Handle *mint = kr->mint;
-  json_t *resp_obj;
-  long response_code;
-  TALER_MINT_CertificationCallback cb;
-
-  resp_obj = MAC_download_get_result (&kr->db,
-                                      eh,
-                                      &response_code);
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Received keys from URL `%s' with status %ld.\n",
-              kr->url,
-              response_code);
-  switch (response_code) {
-  case 0:
-    break;
-  case MHD_HTTP_OK:
-    if ( (NULL == resp_obj) ||
-         (GNUNET_OK !=
-          decode_keys_json (resp_obj,
-                            &kr->mint->key_data)) )
-      response_code = 0;
-    break;
-  default:
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u\n",
-                response_code);
-    break;
-  }
-  if (NULL != resp_obj)
-    json_decref (resp_obj);
-
-  if (MHD_HTTP_OK != response_code)
-  {
-    mint->kr = NULL;
-    free_keys_request (kr);
-    mint->state = MHS_FAILED;
-    /* notify application that we failed */
-    if (NULL != (cb = mint->cert_cb))
-    {
-      mint->cert_cb = NULL;
-      cb (mint->cert_cb_cls,
-	  NULL);
-    }
-    return;
-  }
-  mint->kr = NULL;
-  free_keys_request (kr);
-  mint->state = MHS_CERT;
-  /* notify application about the key information */
-  if (NULL != (cb = mint->cert_cb))
-  {
-    mint->cert_cb = NULL;
-    cb (mint->cert_cb_cls,
-	&mint->key_data);
-  }
-}
-
-
-/* ********************* library internal API ********* */
-
-
-/**
- * Get the context of a mint.
- *
- * @param h the mint handle to query
- * @return ctx context to execute jobs in
- */
-struct TALER_MINT_Context *
-MAH_handle_to_context (struct TALER_MINT_Handle *h)
-{
-  return h->ctx;
-}
-
-
-/**
- * Check if the handle is ready to process requests.
- *
- * @param h the mint handle to query
- * @return #GNUNET_YES if we are ready, #GNUNET_NO if not
- */
-int
-MAH_handle_is_ready (struct TALER_MINT_Handle *h)
-{
-  return (MHS_CERT == h->state) ? GNUNET_YES : GNUNET_NO;
-}
-
-
-/**
- * Obtain the URL to use for an API request.
- *
- * @param h the mint handle to query
- * @param path Taler API path (i.e. "/reserve/withdraw")
- * @return the full URI to use with cURL
- */
-char *
-MAH_path_to_url (struct TALER_MINT_Handle *h,
-                 const char *path)
-{
-  char *url;
-
-  if ( ('/' == path[0]) &&
-       (0 < strlen (h->url)) &&
-       ('/' == h->url[strlen (h->url) - 1]) )
-    path++; /* avoid generating URL with "//" from concat */
-  GNUNET_asprintf (&url,
-                   "%s%s",
-                   h->url,
-                   path);
-  return url;
-}
-
-
-/* ********************* public API ******************* */
-
-/**
- * Initialise a connection to the mint. Will connect to the
- * mint and obtain information about the mint's master public
- * key and the mint's auditor.  The respective information will
- * be passed to the @a cert_cb once available, and all future
- * interactions with the mint will be checked to be signed
- * (where appropriate) by the respective master key.
- *
- * @param ctx the context
- * @param url HTTP base URL for the mint
- * @param cert_cb function to call with the mint's certification information
- * @param cert_cb_cls closure for @a cert_cb
- * @param ... list of additional arguments, terminated by #TALER_MINT_OPTION_END.
- * @return the mint handle; NULL upon error
- */
-struct TALER_MINT_Handle *
-TALER_MINT_connect (struct TALER_MINT_Context *ctx,
-                    const char *url,
-                    TALER_MINT_CertificationCallback cert_cb,
-                    void *cert_cb_cls,
-                    ...)
-{
-  struct TALER_MINT_Handle *mint;
-  struct KeysRequest *kr;
-  CURL *c;
-
-  mint = GNUNET_new (struct TALER_MINT_Handle);
-  mint->ctx = ctx;
-  mint->url = GNUNET_strdup (url);
-  mint->cert_cb = cert_cb;
-  mint->cert_cb_cls = cert_cb_cls;
-  kr = GNUNET_new (struct KeysRequest);
-  kr->mint = mint;
-  kr->url = MAH_path_to_url (mint, "/keys");
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Requesting keys with URL `%s'.\n",
-              kr->url);
-  c = curl_easy_init ();
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (c,
-                                   CURLOPT_VERBOSE,
-                                   0));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (c,
-                                   CURLOPT_STDERR,
-                                   stdout));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (c,
-                                   CURLOPT_URL,
-                                   kr->url));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (c,
-                                   CURLOPT_WRITEFUNCTION,
-                                   &MAC_download_cb));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (c,
-                                   CURLOPT_WRITEDATA,
-                                   &kr->db));
-  kr->job = MAC_job_add (mint->ctx,
-                         c,
-                         GNUNET_NO,
-                         &keys_completed_cb,
-                         kr);
-  mint->kr = kr;
-  return mint;
-}
-
-
-/**
- * Disconnect from the mint
- *
- * @param mint the mint handle
- */
-void
-TALER_MINT_disconnect (struct TALER_MINT_Handle *mint)
-{
-  unsigned int i;
-
-  if (NULL != mint->kr)
-  {
-    MAC_job_cancel (mint->kr->job);
-    free_keys_request (mint->kr);
-    mint->kr = NULL;
-  }
-  GNUNET_array_grow (mint->key_data.sign_keys,
-                     mint->key_data.num_sign_keys,
-                     0);
-  for (i=0;i<mint->key_data.num_denom_keys;i++)
-    GNUNET_CRYPTO_rsa_public_key_free (mint->key_data.denom_keys[i].key.rsa_public_key);
-  GNUNET_array_grow (mint->key_data.denom_keys,
-                     mint->key_data.num_denom_keys,
-                     0);
-  GNUNET_array_grow (mint->key_data.auditors,
-                     mint->key_data.num_auditors,
-                     0);
-  GNUNET_free (mint->url);
-  GNUNET_free (mint);
-}
-
-
-/**
- * Test if the given @a pub is a the current signing key from the mint
- * according to @a keys.
- *
- * @param keys the mint's key set
- * @param pub claimed current online signing key for the mint
- * @return #GNUNET_OK if @a pub is (according to /keys) a current signing key
- */
-int
-TALER_MINT_test_signing_key (const struct TALER_MINT_Keys *keys,
-                             const struct TALER_MintPublicKeyP *pub)
-{
-  struct GNUNET_TIME_Absolute now;
-  unsigned int i;
-
-  /* we will check using a tolerance of 1h for the time */
-  now = GNUNET_TIME_absolute_get ();
-  for (i=0;i<keys->num_sign_keys;i++)
-    if ( (keys->sign_keys[i].valid_from.abs_value_us <= now.abs_value_us + 60 * 60 * 1000LL * 1000LL) &&
-         (keys->sign_keys[i].valid_until.abs_value_us > now.abs_value_us - 60 * 60 * 1000LL * 1000LL) &&
-         (0 == memcmp (pub,
-                       &keys->sign_keys[i].key,
-                       sizeof (struct TALER_MintPublicKeyP))) )
-      return GNUNET_OK;
-  return GNUNET_SYSERR;
-}
-
-
-/**
- * Obtain the denomination key details from the mint.
- *
- * @param keys the mint's key set
- * @param pk public key of the denomination to lookup
- * @return details about the given denomination key, NULL if the key is
- * not found
- */
-const struct TALER_MINT_DenomPublicKey *
-TALER_MINT_get_denomination_key (const struct TALER_MINT_Keys *keys,
-                                 const struct TALER_DenominationPublicKey *pk)
-{
-  unsigned int i;
-
-  for (i=0;i<keys->num_denom_keys;i++)
-    if (0 == GNUNET_CRYPTO_rsa_public_key_cmp (pk->rsa_public_key,
-                                               keys->denom_keys[i].key.rsa_public_key))
-      return &keys->denom_keys[i];
-  return NULL;
-}
-
-
-/**
- * Obtain the denomination key details from the mint.
- *
- * @param keys the mint's key set
- * @param hc hash of the public key of the denomination to lookup
- * @return details about the given denomination key
- */
-const struct TALER_MINT_DenomPublicKey *
-TALER_MINT_get_denomination_key_by_hash (const struct TALER_MINT_Keys *keys,
-                                         const struct GNUNET_HashCode *hc)
-{
-  unsigned int i;
-
-  for (i=0;i<keys->num_denom_keys;i++)
-    if (0 == memcmp (hc,
-                     &keys->denom_keys[i].h_key,
-                     sizeof (struct GNUNET_HashCode)))
-      return &keys->denom_keys[i];
-  return NULL;
-}
-
-
-/**
- * Obtain the keys from the mint.
- *
- * @param mint the mint handle
- * @return the mint's key set
- */
-const struct TALER_MINT_Keys *
-TALER_MINT_get_keys (const struct TALER_MINT_Handle *mint)
-{
-  return &mint->key_data;
-}
-
-
-/* end of mint_api_handle.c */
diff --git a/src/mint-lib/mint_api_handle.h b/src/mint-lib/mint_api_handle.h
deleted file mode 100644
index 0dae58db6..000000000
--- a/src/mint-lib/mint_api_handle.h
+++ /dev/null
@@ -1,59 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see
-  <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-lib/mint_api_handle.h
- * @brief Internal interface to the handle part of the mint's HTTP API
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <curl/curl.h>
-#include "taler_mint_service.h"
-
-
-/**
- * Get the context of a mint.
- *
- * @param h the mint handle to query
- * @return ctx context to execute jobs in
- */
-struct TALER_MINT_Context *
-MAH_handle_to_context (struct TALER_MINT_Handle *h);
-
-
-/**
- * Check if the handle is ready to process requests.
- *
- * @param h the mint handle to query
- * @return #GNUNET_YES if we are ready, #GNUNET_NO if not
- */
-int
-MAH_handle_is_ready (struct TALER_MINT_Handle *h);
-
-
-/**
- * Obtain the URL to use for an API request.
- *
- * @param h the mint handle to query
- * @param path Taler API path (i.e. "/reserve/withdraw")
- * @return the full URI to use with cURL
- */
-char *
-MAH_path_to_url (struct TALER_MINT_Handle *h,
-                 const char *path);
-
-
-/* end of mint_api_handle.h */
diff --git a/src/mint-lib/mint_api_json.c b/src/mint-lib/mint_api_json.c
deleted file mode 100644
index 7de33e5eb..000000000
--- a/src/mint-lib/mint_api_json.c
+++ /dev/null
@@ -1,525 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-lib/mint_api_json.c
- * @brief functions to parse incoming requests (JSON snippets)
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include "mint_api_json.h"
-
-/**
- * Navigate and parse data in a JSON tree.
- *
- * @param root the JSON node to start the navigation at.
- * @param spec parse specification array
- * @return offset in @a spec where parsing failed, -1 on success (!)
- */
-static int
-parse_json (json_t *root,
-            struct MAJ_Specification *spec)
-{
-  int i;
-  json_t *pos; /* what's our current position? */
-
-  pos = root;
-  for (i=0;MAJ_CMD_END != spec[i].cmd;i++)
-  {
-    pos = json_object_get (root,
-                           spec[i].field);
-    if (NULL == pos)
-    {
-      GNUNET_break_op (0);
-      return i;
-    }
-    switch (spec[i].cmd)
-    {
-    case MAJ_CMD_END:
-      GNUNET_assert (0);
-      return i;
-    case MAJ_CMD_AMOUNT:
-      if (GNUNET_OK !=
-          TALER_json_to_amount (pos,
-                                spec[i].details.amount))
-      {
-        GNUNET_break_op (0);
-        return i;
-      }
-      break;
-    case MAJ_CMD_TIME_ABSOLUTE:
-      if (GNUNET_OK !=
-          TALER_json_to_abs (pos,
-                             spec[i].details.abs_time))
-      {
-        GNUNET_break_op (0);
-        return i;
-      }
-      break;
-
-    case MAJ_CMD_STRING:
-      {
-        const char *str;
-
-        str = json_string_value (pos);
-        if (NULL == str)
-        {
-          GNUNET_break_op (0);
-          return i;
-        }
-        *spec[i].details.strptr = str;
-      }
-      break;
-
-    case MAJ_CMD_BINARY_FIXED:
-      {
-        const char *str;
-        int res;
-
-        str = json_string_value (pos);
-        if (NULL == str)
-        {
-          GNUNET_break_op (0);
-          return i;
-        }
-        res = GNUNET_STRINGS_string_to_data (str, strlen (str),
-                                             spec[i].details.fixed_data.dest,
-                                             spec[i].details.fixed_data.dest_size);
-        if (GNUNET_OK != res)
-        {
-          GNUNET_break_op (0);
-          return i;
-        }
-      }
-      break;
-
-    case MAJ_CMD_BINARY_VARIABLE:
-      {
-        const char *str;
-        size_t size;
-        void *data;
-        int res;
-
-        str = json_string_value (pos);
-        if (NULL == str)
-        {
-          GNUNET_break_op (0);
-          return i;
-        }
-        size = (strlen (str) * 5) / 8;
-        if (size >= 1024)
-        {
-          GNUNET_break_op (0);
-          return i;
-        }
-        data = GNUNET_malloc (size);
-        res = GNUNET_STRINGS_string_to_data (str,
-                                             strlen (str),
-                                             data,
-                                             size);
-        if (GNUNET_OK != res)
-        {
-          GNUNET_break_op (0);
-          GNUNET_free (data);
-          return i;
-        }
-        *spec[i].details.variable_data.dest_p = data;
-        *spec[i].details.variable_data.dest_size_p = size;
-      }
-      break;
-
-    case MAJ_CMD_RSA_PUBLIC_KEY:
-      {
-        size_t size;
-        const char *str;
-        int res;
-        void *buf;
-
-        str = json_string_value (pos);
-        if (NULL == str)
-        {
-          GNUNET_break_op (0);
-          return i;
-        }
-        size = (strlen (str) * 5) / 8;
-        buf = GNUNET_malloc (size);
-        res = GNUNET_STRINGS_string_to_data (str,
-                                             strlen (str),
-                                             buf,
-                                             size);
-        if (GNUNET_OK != res)
-        {
-          GNUNET_free (buf);
-          GNUNET_break_op (0);
-          return i;
-        }
-        *spec[i].details.rsa_public_key
-          = GNUNET_CRYPTO_rsa_public_key_decode (buf,
-                                                 size);
-        GNUNET_free (buf);
-        if (NULL == spec[i].details.rsa_public_key)
-        {
-          GNUNET_break_op (0);
-          return i;
-        }
-      }
-      break;
-
-    case MAJ_CMD_RSA_SIGNATURE:
-      {
-        size_t size;
-        const char *str;
-        int res;
-        void *buf;
-
-        str = json_string_value (pos);
-        if (NULL == str)
-        {
-          GNUNET_break_op (0);
-          return i;
-        }
-        size = (strlen (str) * 5) / 8;
-        buf = GNUNET_malloc (size);
-        res = GNUNET_STRINGS_string_to_data (str,
-                                             strlen (str),
-                                             buf,
-                                             size);
-        if (GNUNET_OK != res)
-        {
-          GNUNET_free (buf);
-          GNUNET_break_op (0);
-          return i;
-        }
-        *spec[i].details.rsa_signature
-          = GNUNET_CRYPTO_rsa_signature_decode (buf,
-                                                size);
-        GNUNET_free (buf);
-        if (NULL == spec[i].details.rsa_signature)
-          return i;
-      }
-      break;
-
-    case MAJ_CMD_UINT16:
-      {
-        json_int_t val;
-
-        if (! json_is_integer (pos))
-        {
-          GNUNET_break_op (0);
-          return i;
-        }
-        val = json_integer_value (pos);
-        if ( (0 > val) || (val > UINT16_MAX) )
-        {
-          GNUNET_break_op (0);
-          return i;
-        }
-        *spec[i].details.u16 = (uint16_t) val;
-      }
-      break;
-
-    case MAJ_CMD_UINT64:
-      {
-        json_int_t val;
-
-        if (! json_is_integer (pos))
-        {
-          GNUNET_break_op (0);
-          return i;
-        }
-        val = json_integer_value (pos);
-        *spec[i].details.u64 = (uint64_t) val;
-      }
-      break;
-
-    case MAJ_CMD_JSON_OBJECT:
-      {
-        if (! (json_is_object (pos) || json_is_array (pos)) )
-        {
-          GNUNET_break_op (0);
-          return i;
-        }
-        json_incref (pos);
-        *spec[i].details.obj = pos;
-      }
-      break;
-
-    default:
-      GNUNET_break (0);
-      return i;
-    }
-  }
-  return -1; /* all OK! */
-}
-
-
-/**
- * Free all elements allocated during a
- * #MAJ_parse_json() operation.
- *
- * @param spec specification of the parse operation
- * @param end number of elements in @a spec to process
- */
-static void
-parse_free (struct MAJ_Specification *spec,
-            int end)
-{
-  int i;
-
-  for (i=0;i<end;i++)
-  {
-    switch (spec[i].cmd)
-    {
-    case MAJ_CMD_END:
-      GNUNET_assert (0);
-      return;
-    case MAJ_CMD_AMOUNT:
-      break;
-    case MAJ_CMD_TIME_ABSOLUTE:
-      break;
-    case MAJ_CMD_BINARY_FIXED:
-      break;
-    case MAJ_CMD_STRING:
-      break;
-    case MAJ_CMD_BINARY_VARIABLE:
-      GNUNET_free (*spec[i].details.variable_data.dest_p);
-      *spec[i].details.variable_data.dest_p = NULL;
-      *spec[i].details.variable_data.dest_size_p = 0;
-      break;
-    case MAJ_CMD_RSA_PUBLIC_KEY:
-      GNUNET_CRYPTO_rsa_public_key_free (*spec[i].details.rsa_public_key);
-      *spec[i].details.rsa_public_key = NULL;
-      break;
-    case MAJ_CMD_RSA_SIGNATURE:
-      GNUNET_CRYPTO_rsa_signature_free (*spec[i].details.rsa_signature);
-      *spec[i].details.rsa_signature = NULL;
-      break;
-    case MAJ_CMD_JSON_OBJECT:
-      json_decref (*spec[i].details.obj);
-      *spec[i].details.obj = NULL;
-      break;
-    default:
-      GNUNET_break (0);
-      break;
-    }
-  }
-}
-
-
-/**
- * Navigate and parse data in a JSON tree.
- *
- * @param root the JSON node to start the navigation at.
- * @param spec parse specification array
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
- */
-int
-MAJ_parse_json (const json_t *root,
-                struct MAJ_Specification *spec)
-{
-  int ret;
-
-  ret = parse_json ((json_t *) root,
-                    spec);
-  if (-1 == ret)
-    return GNUNET_OK;
-  GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-              "JSON field `%s` (%d) had unexpected value\n",
-              spec[ret].field,
-              ret);
-  parse_free (spec, ret);
-  return GNUNET_SYSERR;
-}
-
-
-/**
- * Free all elements allocated during a
- * #MAJ_parse_json() operation.
- *
- * @param spec specification of the parse operation
- */
-void
-MAJ_parse_free (struct MAJ_Specification *spec)
-{
-  int i;
-
-  for (i=0;MAJ_CMD_END != spec[i].cmd;i++) ;
-  parse_free (spec, i);
-}
-
-
-/**
- * The expected field stores a string.
- *
- * @param name name of the JSON field
- * @param strptr where to store a pointer to the field
- */
-struct MAJ_Specification
-MAJ_spec_string (const char *name,
-                 const char **strptr)
-{
-  struct MAJ_Specification ret =
-    {
-      .cmd = MAJ_CMD_STRING,
-      .field = name,
-      .details.strptr = strptr
-    };
-  return ret;
-}
-
-
-/**
- * Specification for parsing an absolute time value.
- *
- * @param name name of the JSON field
- * @param at where to store the absolute time found under @a name
- */
-struct MAJ_Specification
-MAJ_spec_absolute_time (const char *name,
-                        struct GNUNET_TIME_Absolute *at)
-{
-  struct MAJ_Specification ret =
-    {
-      .cmd = MAJ_CMD_TIME_ABSOLUTE,
-      .field = name,
-      .details.abs_time = at
-    };
-  return ret;
-}
-
-
-/**
- * Specification for parsing an amount value.
- *
- * @param name name of the JSON field
- * @param amount where to store the amount found under @a name
- */
-struct MAJ_Specification
-MAJ_spec_amount (const char *name,
-                 struct TALER_Amount *amount)
-{
-  struct MAJ_Specification ret =
-    {
-      .cmd = MAJ_CMD_AMOUNT,
-      .field = name,
-      .details.amount = amount
-    };
-  return ret;
-}
-
-
-/**
- * 16-bit integer.
- *
- * @param name name of the JSON field
- * @param[out] u16 where to store the integer found under @a name
- */
-struct MAJ_Specification
-MAJ_spec_uint16 (const char *name,
-                 uint16_t *u16)
-{
-  struct MAJ_Specification ret =
-    {
-      .cmd = MAJ_CMD_UINT16,
-      .field = name,
-      .details.u16 = u16
-    };
-  return ret;
-}
-
-
-/**
- * 64-bit integer.
- *
- * @param name name of the JSON field
- * @param[out] u64 where to store the integer found under @a name
- */
-struct MAJ_Specification
-MAJ_spec_uint64 (const char *name,
-                 uint64_t *u64)
-{
-  struct MAJ_Specification ret =
-    {
-      .cmd = MAJ_CMD_UINT64,
-      .field = name,
-      .details.u64 = u64
-    };
-  return ret;
-}
-
-
-/**
- * JSON object.
- *
- * @param name name of the JSON field
- * @param[out] jsonp where to store the JSON found under @a name
- */
-struct MAJ_Specification
-MAJ_spec_json (const char *name,
-               json_t **jsonp)
-{
-  struct MAJ_Specification ret =
-    {
-      .cmd = MAJ_CMD_JSON_OBJECT,
-      .field = name,
-      .details.obj = jsonp
-    };
-  return ret;
-}
-
-
-/**
- * Specification for parsing an RSA public key.
- *
- * @param name name of the JSON field
- * @param pk where to store the RSA key found under @a name
- */
-struct MAJ_Specification
-MAJ_spec_rsa_public_key (const char *name,
-                         struct GNUNET_CRYPTO_rsa_PublicKey **pk)
-{
-  struct MAJ_Specification ret =
-    {
-      .cmd = MAJ_CMD_RSA_PUBLIC_KEY,
-      .field = name,
-      .details.rsa_public_key = pk
-    };
-  return ret;
-}
-
-
-/**
- * Specification for parsing an RSA signature.
- *
- * @param name name of the JSON field
- * @param sig where to store the RSA signature found under @a name
- */
-struct MAJ_Specification
-MAJ_spec_rsa_signature (const char *name,
-                        struct GNUNET_CRYPTO_rsa_Signature **sig)
-{
-  struct MAJ_Specification ret =
-    {
-      .cmd = MAJ_CMD_RSA_SIGNATURE,
-      .field = name,
-      .details.rsa_signature = sig
-    };
-  return ret;
-}
-
-
-/* end of mint_api_json.c */
diff --git a/src/mint-lib/mint_api_json.h b/src/mint-lib/mint_api_json.h
deleted file mode 100644
index 6bc3a5572..000000000
--- a/src/mint-lib/mint_api_json.h
+++ /dev/null
@@ -1,352 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-lib/mint_api_json.h
- * @brief functions to parse incoming requests (JSON snippets)
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <gnunet/gnunet_util_lib.h>
-#include "taler_util.h"
-#include <jansson.h>
-
-
-/**
- * Enumeration with the various commands for the
- * #MAJ_parse_json interpreter.
- */
-enum MAJ_Command
-{
-
-  /**
-   * End of command list.
-   */
-  MAJ_CMD_END,
-
-  /**
-   * Parse amount at current position.
-   */
-  MAJ_CMD_AMOUNT,
-
-  /**
-   * Parse absolute time at current position.
-   */
-  MAJ_CMD_TIME_ABSOLUTE,
-
-  /**
-   * Parse fixed binary value at current position.
-   */
-  MAJ_CMD_BINARY_FIXED,
-
-  /**
-   * Parse variable-size binary value at current position.
-   */
-  MAJ_CMD_BINARY_VARIABLE,
-
-  /**
-   * Parse RSA public key at current position.
-   */
-  MAJ_CMD_RSA_PUBLIC_KEY,
-
-  /**
-   * Parse RSA signature at current position.
-   */
-  MAJ_CMD_RSA_SIGNATURE,
-
-  /**
-   * Parse `const char *` JSON string at current position.
-   */
-  MAJ_CMD_STRING,
-
-  /**
-   * Parse `uint16_t` integer at the current position.
-   */
-  MAJ_CMD_UINT16,
-
-  /**
-   * Parse `uint64_t` integer at the current position.
-   */
-  MAJ_CMD_UINT64,
-
-  /**
-   * Parse JSON object at the current position.
-   */
-  MAJ_CMD_JSON_OBJECT,
-
-  /**
-   * Parse ??? at current position.
-   */
-  MAJ_CMD_C
-
-};
-
-
-/**
- * @brief Entry in parser specification for #MAJ_parse_json.
- */
-struct MAJ_Specification
-{
-
-  /**
-   * Command to execute.
-   */
-  enum MAJ_Command cmd;
-
-  /**
-   * Name of the field to access.
-   */
-  const char *field;
-
-  /**
-   * Further details for the command.
-   */
-  union {
-
-    /**
-     * Where to store amount for #MAJ_CMD_AMOUNT.
-     */
-    struct TALER_Amount *amount;
-
-    /**
-     * Where to store time, for #MAJ_CMD_TIME_ABSOLUTE.
-     */
-    struct GNUNET_TIME_Absolute *abs_time;
-
-    /**
-     * Where to write binary data, for #MAJ_CMD_BINARY_FIXED.
-     */
-    struct {
-      /**
-       * Where to write the data.
-       */
-      void *dest;
-
-      /**
-       * How many bytes to write to @e dest.
-       */
-      size_t dest_size;
-
-    } fixed_data;
-
-    /**
-     * Where to write binary data, for #MAJ_CMD_BINARY_VARIABLE.
-     */
-    struct {
-      /**
-       * Where to store the pointer with the data (is allocated).
-       */
-      void **dest_p;
-
-      /**
-       * Where to store the number of bytes allocated at `*dest`.
-       */
-      size_t *dest_size_p;
-
-    } variable_data;
-
-    /**
-     * Where to store the RSA public key for #MAJ_CMD_RSA_PUBLIC_KEY
-     */
-    struct GNUNET_CRYPTO_rsa_PublicKey **rsa_public_key;
-
-    /**
-     * Where to store the RSA signature for #MAJ_CMD_RSA_SIGNATURE
-     */
-    struct GNUNET_CRYPTO_rsa_Signature **rsa_signature;
-
-    /**
-     * Details for #MAJ_CMD_EDDSA_SIGNATURE
-     */
-    struct {
-
-      /**
-       * Where to store the purpose.
-       */
-      struct GNUNET_CRYPTO_EccSignaturePurpose **purpose_p;
-
-      /**
-       * Key to verify the signature against.
-       */
-      const struct GNUNET_CRYPTO_EddsaPublicKey *pub_key;
-
-    } eddsa_signature;
-
-    /**
-     * Where to store a pointer to the string.
-     */
-    const char **strptr;
-
-    /**
-     * Where to store 16-bit integer.
-     */
-    uint16_t *u16;
-
-    /**
-     * Where to store 64-bit integer.
-     */
-    uint64_t *u64;
-
-    /**
-     * Where to store a JSON object.
-     */
-    json_t **obj;
-
-  } details;
-
-};
-
-
-/**
- * Navigate and parse data in a JSON tree.
- *
- * @param root the JSON node to start the navigation at.
- * @param spec parse specification array
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
- */
-int
-MAJ_parse_json (const json_t *root,
-                struct MAJ_Specification *spec);
-
-
-/**
- * Free all elements allocated during a
- * #MAJ_parse_json() operation.
- *
- * @param spec specification of the parse operation
- */
-void
-MAJ_parse_free (struct MAJ_Specification *spec);
-
-
-/**
- * End of a parser specification.
- */
-#define MAJ_spec_end { .cmd = MAJ_CMD_END }
-
-/**
- * Fixed size object (in network byte order, encoded using Crockford
- * Base32hex encoding).
- *
- * @param name name of the JSON field
- * @param obj pointer where to write the data (type of `*obj` will determine size)
- */
-#define MAJ_spec_fixed_auto(name,obj) { .cmd = MAJ_CMD_BINARY_FIXED, .field = name, .details.fixed_data.dest = obj, .details.fixed_data.dest_size = sizeof (*obj) }
-
-
-/**
- * Variable size object (in network byte order, encoded using Crockford
- * Base32hex encoding).
- *
- * @param name name of the JSON field
- * @param obj pointer where to write the data (a `void **`)
- * @param size where to store the number of bytes allocated for @a obj (of type `size_t *`
- */
-#define MAJ_spec_varsize(name,obj,size) { .cmd = MAJ_CMD_BINARY_VARIABLE, .field = name, .details.variable_data.dest_p = obj, .details.variable_data.dest_size_p = size }
-
-
-/**
- * The expected field stores a string.
- *
- * @param name name of the JSON field
- * @param strptr where to store a pointer to the field
- */
-struct MAJ_Specification
-MAJ_spec_string (const char *name,
-                 const char **strptr);
-
-
-/**
- * Absolute time.
- *
- * @param name name of the JSON field
- * @param[out] at where to store the absolute time found under @a name
- */
-struct MAJ_Specification
-MAJ_spec_absolute_time (const char *name,
-                        struct GNUNET_TIME_Absolute *at);
-
-
-/**
- * 16-bit integer.
- *
- * @param name name of the JSON field
- * @param[out] u16 where to store the integer found under @a name
- */
-struct MAJ_Specification
-MAJ_spec_uint16 (const char *name,
-                 uint16_t *u16);
-
-
-/**
- * 64-bit integer.
- *
- * @param name name of the JSON field
- * @param[out] u64 where to store the integer found under @a name
- */
-struct MAJ_Specification
-MAJ_spec_uint64 (const char *name,
-                 uint64_t *u64);
-
-
-/**
- * JSON object.
- *
- * @param name name of the JSON field
- * @param[out] jsonp where to store the JSON found under @a name
- */
-struct MAJ_Specification
-MAJ_spec_json (const char *name,
-               json_t **jsonp);
-
-
-/**
- * Specification for parsing an amount value.
- *
- * @param name name of the JSON field
- * @param amount where to store the amount under @a name
- */
-struct MAJ_Specification
-MAJ_spec_amount (const char *name,
-                 struct TALER_Amount *amount);
-
-
-/**
- * Specification for parsing an RSA public key.
- *
- * @param name name of the JSON field
- * @param pk where to store the RSA key found under @a name
- */
-struct MAJ_Specification
-MAJ_spec_rsa_public_key (const char *name,
-                         struct GNUNET_CRYPTO_rsa_PublicKey **pk);
-
-
-/**
- * Specification for parsing an RSA signature.
- *
- * @param name name of the JSON field
- * @param sig where to store the RSA signature found under @a name
- */
-struct MAJ_Specification
-MAJ_spec_rsa_signature (const char *name,
-                        struct GNUNET_CRYPTO_rsa_Signature **sig);
-
-
-
-
-/* end of mint_api_json.h */
diff --git a/src/mint-lib/mint_api_refresh.c b/src/mint-lib/mint_api_refresh.c
deleted file mode 100644
index cea16b153..000000000
--- a/src/mint-lib/mint_api_refresh.c
+++ /dev/null
@@ -1,2061 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see
-  <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-lib/mint_api_refresh.c
- * @brief Implementation of the /refresh/melt+reveal requests of the mint's HTTP API
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <curl/curl.h>
-#include <jansson.h>
-#include <microhttpd.h> /* just for HTTP status codes */
-#include <gnunet/gnunet_util_lib.h>
-#include "taler_mint_service.h"
-#include "mint_api_common.h"
-#include "mint_api_json.h"
-#include "mint_api_context.h"
-#include "mint_api_handle.h"
-#include "taler_signatures.h"
-
-
-/* ********************* /refresh/ common ***************************** */
-
-/* structures for committing refresh data to disk before doing the
-   network interaction(s) */
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * Header of serialized information about a coin we are melting.
- */
-struct MeltedCoinP
-{
-  /**
-   * Private key of the coin.
-   */
-  struct TALER_CoinSpendPrivateKeyP coin_priv;
-
-  /**
-   * Amount this coin contributes to the melt, including fee.
-   */
-  struct TALER_AmountNBO melt_amount_with_fee;
-
-  /**
-   * The applicable fee for withdrawing a coin of this denomination
-   */
-  struct TALER_AmountNBO fee_melt;
-
-  /**
-   * The original value of the coin.
-   */
-  struct TALER_AmountNBO original_value;
-
-  /**
-   * Transfer private keys for each cut-and-choose dimension.
-   */
-  struct TALER_TransferPrivateKeyP transfer_priv[TALER_CNC_KAPPA];
-
-  /**
-   * Timestamp indicating when coins of this denomination become invalid.
-   */
-  struct GNUNET_TIME_AbsoluteNBO deposit_valid_until;
-
-  /**
-   * Size of the encoded public key that follows.
-   */
-  uint16_t pbuf_size;
-
-  /**
-   * Size of the encoded signature that follows.
-   */
-  uint16_t sbuf_size;
-
-  /* Followed by serializations of:
-     1) struct TALER_DenominationPublicKey pub_key;
-     2) struct TALER_DenominationSignature sig;
-  */
-};
-
-
-/**
- * Header for serializations of coin-specific information about the
- * fresh coins we generate during a melt.
- */
-struct FreshCoinP
-{
-
-  /**
-   * Private key of the coin.
-   */
-  struct TALER_CoinSpendPrivateKeyP coin_priv;
-
-  /**
-   * Size of the encoded blinding key that follows.
-   */
-  uint32_t bbuf_size;
-
-  /* Followed by serialization of:
-     - struct TALER_DenominationBlindingKey blinding_key;
-  */
-
-};
-
-
-/**
- * Header of serialized data about a melt operation, suitable for
- * persisting it on disk.
- */
-struct MeltDataP
-{
-
-  /**
-   * Hash over the melting session.
-   */
-  struct GNUNET_HashCode melt_session_hash;
-
-  /**
-   * Link secret used to encrypt the @a coin_priv and the blinding
-   * key in the linkage data for the respective cut-and-choose dimension.
-   */
-  struct TALER_LinkSecretP link_secrets[TALER_CNC_KAPPA];
-
-  /**
-   * Number of coins we are melting, in NBO
-   */
-  uint16_t num_melted_coins GNUNET_PACKED;
-
-  /**
-   * Number of coins we are creating, in NBO
-   */
-  uint16_t num_fresh_coins GNUNET_PACKED;
-
-  /* Followed by serializations of:
-     1) struct MeltedCoinP melted_coins[num_melted_coins];
-     2) struct TALER_MINT_DenomPublicKey fresh_pks[num_fresh_coins];
-     3) TALER_CNC_KAPPA times:
-        3a) struct FreshCoinP fresh_coins[num_fresh_coins];
-  */
-};
-
-
-GNUNET_NETWORK_STRUCT_END
-
-
-/**
- * Information about a coin we are melting.
- */
-struct MeltedCoin
-{
-  /**
-   * Private key of the coin.
-   */
-  struct TALER_CoinSpendPrivateKeyP coin_priv;
-
-  /**
-   * Amount this coin contributes to the melt, including fee.
-   */
-  struct TALER_Amount melt_amount_with_fee;
-
-  /**
-   * The applicable fee for melting a coin of this denomination
-   */
-  struct TALER_Amount fee_melt;
-
-  /**
-   * The original value of the coin.
-   */
-  struct TALER_Amount original_value;
-
-  /**
-   * Transfer private keys for each cut-and-choose dimension.
-   */
-  struct TALER_TransferPrivateKeyP transfer_priv[TALER_CNC_KAPPA];
-
-  /**
-   * Timestamp indicating when coins of this denomination become invalid.
-   */
-  struct GNUNET_TIME_Absolute deposit_valid_until;
-
-  /**
-   * Denomination key of the original coin.
-   */
-  struct TALER_DenominationPublicKey pub_key;
-
-  /**
-   * Mint's signature over the coin.
-   */
-  struct TALER_DenominationSignature sig;
-
-};
-
-
-/**
- * Coin-specific information about the fresh coins we generate during
- * a melt.
- */
-struct FreshCoin
-{
-
-  /**
-   * Private key of the coin.
-   */
-  struct TALER_CoinSpendPrivateKeyP coin_priv;
-
-  /**
-   * Blinding key used for blinding during blind signing.
-   */
-  struct TALER_DenominationBlindingKey blinding_key;
-
-};
-
-
-/**
- * Melt data in non-serialized format for convenient processing.
- */
-struct MeltData
-{
-
-  /**
-   * Hash over the melting session.
-   */
-  struct GNUNET_HashCode melt_session_hash;
-
-  /**
-   * Link secrets for each cut-and-choose dimension.
-   */
-  struct TALER_LinkSecretP link_secrets[TALER_CNC_KAPPA];
-
-  /**
-   * Number of coins we are melting
-   */
-  uint16_t num_melted_coins;
-
-  /**
-   * Number of coins we are creating
-   */
-  uint16_t num_fresh_coins;
-
-  /**
-   * Information about the melted coins in an array of length @e
-   * num_melted_coins.
-   */
-  struct MeltedCoin *melted_coins;
-
-  /**
-   * Array of @e num_fresh_coins denomination keys for the coins to be
-   * freshly minted.
-   */
-  struct TALER_DenominationPublicKey *fresh_pks;
-
-  /**
-   * Arrays of @e num_fresh_coins with information about the fresh
-   * coins to be created, for each cut-and-choose dimension.
-   */
-  struct FreshCoin *fresh_coins[TALER_CNC_KAPPA];
-};
-
-
-/**
- * Free all information associated with a melted coin session.
- *
- * @param mc melted coin to release, the pointer itself is NOT
- *           freed (as it is typically not allocated by itself)
- */
-static void
-free_melted_coin (struct MeltedCoin *mc)
-{
-  if (NULL == mc)
-    return;
-  if (NULL != mc->pub_key.rsa_public_key)
-    GNUNET_CRYPTO_rsa_public_key_free (mc->pub_key.rsa_public_key);
-  if (NULL != mc->sig.rsa_signature)
-    GNUNET_CRYPTO_rsa_signature_free (mc->sig.rsa_signature);
-}
-
-
-/**
- * Free all information associated with a fresh coin.
- *
- * @param fc fresh coin to release, the pointer itself is NOT
- *           freed (as it is typically not allocated by itself)
- */
-static void
-free_fresh_coin (struct FreshCoin *fc)
-{
-  if (NULL == fc)
-    return;
-  if (NULL != fc->blinding_key.rsa_blinding_key)
-    GNUNET_CRYPTO_rsa_blinding_key_free (fc->blinding_key.rsa_blinding_key);
-}
-
-
-/**
- * Free all information associated with a melting session.  Note
- * that we allow the melting session to be only partially initialized,
- * as we use this function also when freeing melt data that was not
- * fully initialized (i.e. due to failures in #deserialize_melt_data()).
- *
- * @param md melting data to release, the pointer itself is NOT
- *           freed (as it is typically not allocated by itself)
- */
-static void
-free_melt_data (struct MeltData *md)
-{
-  unsigned int i;
-  unsigned int j;
-
-  if (NULL != md->melted_coins)
-  {
-    for (i=0;i<md->num_melted_coins;i++)
-      free_melted_coin (&md->melted_coins[i]);
-    GNUNET_free (md->melted_coins);
-  }
-  if (NULL != md->fresh_pks)
-  {
-    for (i=0;i<md->num_fresh_coins;i++)
-      if (NULL != md->fresh_pks[i].rsa_public_key)
-        GNUNET_CRYPTO_rsa_public_key_free (md->fresh_pks[i].rsa_public_key);
-    GNUNET_free (md->fresh_pks);
-  }
-
-  for (i=0;i<TALER_CNC_KAPPA;i++)
-  {
-    for (j=0;j<md->num_fresh_coins;j++)
-      free_fresh_coin (&md->fresh_coins[i][j]);
-    GNUNET_free (md->fresh_coins[i]);
-  }
-  /* Finally, clean up a bit...
-     (NOTE: compilers might optimize this away, so this is
-     not providing any strong assurances that the key material
-     is purged.) */
-  memset (md,
-          0,
-          sizeof (struct MeltData));
-}
-
-
-/**
- * Serialize information about a coin we are melting.
- *
- * @param mc information to serialize
- * @param buf buffer to write data in, NULL to just compute
- *            required size
- * @param off offeset at @a buf to use
- * @return number of bytes written to @a buf at @a off, or if
- *        @a buf is NULL, number of bytes required; 0 on error
- */
-static size_t
-serialize_melted_coin (const struct MeltedCoin *mc,
-                       char *buf,
-                       size_t off)
-{
-  struct MeltedCoinP mcp;
-  unsigned int i;
-  char *pbuf;
-  size_t pbuf_size;
-  char *sbuf;
-  size_t sbuf_size;
-
-  sbuf_size = GNUNET_CRYPTO_rsa_signature_encode (mc->sig.rsa_signature,
-                                                  &sbuf);
-  pbuf_size = GNUNET_CRYPTO_rsa_public_key_encode (mc->pub_key.rsa_public_key,
-                                                   &pbuf);
-  if (NULL == buf)
-  {
-    GNUNET_free (sbuf);
-    GNUNET_free (pbuf);
-    return sizeof (struct MeltedCoinP) + sbuf_size + pbuf_size;
-  }
-  if ( (sbuf_size > UINT16_MAX) ||
-       (pbuf_size > UINT16_MAX) )
-  {
-    GNUNET_break (0);
-    return 0;
-  }
-  mcp.coin_priv = mc->coin_priv;
-  TALER_amount_hton (&mcp.melt_amount_with_fee,
-                     &mc->melt_amount_with_fee);
-  TALER_amount_hton (&mcp.fee_melt,
-                     &mc->fee_melt);
-  TALER_amount_hton (&mcp.original_value,
-                     &mc->original_value);
-  for (i=0;i<TALER_CNC_KAPPA;i++)
-    mcp.transfer_priv[i] = mc->transfer_priv[i];
-  mcp.deposit_valid_until = GNUNET_TIME_absolute_hton (mc->deposit_valid_until);
-  mcp.pbuf_size = htons ((uint16_t) pbuf_size);
-  mcp.sbuf_size = htons ((uint16_t) sbuf_size);
-  memcpy (&buf[off],
-          &mcp,
-          sizeof (struct MeltedCoinP));
-  memcpy (&buf[off + sizeof (struct MeltedCoinP)],
-          pbuf,
-          pbuf_size);
-  memcpy (&buf[off + sizeof (struct MeltedCoinP) + pbuf_size],
-          sbuf,
-          sbuf_size);
-  GNUNET_free (sbuf);
-  GNUNET_free (pbuf);
-  return sizeof (struct MeltedCoinP) + sbuf_size + pbuf_size;
-}
-
-
-/**
- * Deserialize information about a coin we are melting.
- *
- * @param[out] mc information to deserialize
- * @param buf buffer to read data from
- * @param size number of bytes available at @a buf to use
- * @param[out] ok set to #GNUNET_NO to report errors
- * @return number of bytes read from @a buf, 0 on error
- */
-static size_t
-deserialize_melted_coin (struct MeltedCoin *mc,
-                         const char *buf,
-                         size_t size,
-                         int *ok)
-{
-  struct MeltedCoinP mcp;
-  unsigned int i;
-  size_t pbuf_size;
-  size_t sbuf_size;
-  size_t off;
-
-  if (size < sizeof (struct MeltedCoinP))
-  {
-    GNUNET_break (0);
-    *ok = GNUNET_NO;
-    return 0;
-  }
-  memcpy (&mcp,
-          buf,
-          sizeof (struct MeltedCoinP));
-  pbuf_size = ntohs (mcp.pbuf_size);
-  sbuf_size = ntohs (mcp.sbuf_size);
-  if (size < sizeof (struct MeltedCoinP) + pbuf_size + sbuf_size)
-  {
-    GNUNET_break (0);
-    *ok = GNUNET_NO;
-    return 0;
-  }
-  off = sizeof (struct MeltedCoinP);
-  mc->pub_key.rsa_public_key
-    = GNUNET_CRYPTO_rsa_public_key_decode (&buf[off],
-                                           pbuf_size);
-  off += pbuf_size;
-  mc->sig.rsa_signature
-    = GNUNET_CRYPTO_rsa_signature_decode (&buf[off],
-                                          sbuf_size);
-  off += sbuf_size;
-  if ( (NULL == mc->pub_key.rsa_public_key) ||
-       (NULL == mc->sig.rsa_signature) )
-  {
-    GNUNET_break (0);
-    *ok = GNUNET_NO;
-    return 0;
-  }
-
-  mc->coin_priv = mcp.coin_priv;
-  TALER_amount_ntoh (&mc->melt_amount_with_fee,
-                     &mcp.melt_amount_with_fee);
-  TALER_amount_ntoh (&mc->fee_melt,
-                     &mcp.fee_melt);
-  TALER_amount_ntoh (&mc->original_value,
-                     &mcp.original_value);
-  for (i=0;i<TALER_CNC_KAPPA;i++)
-    mc->transfer_priv[i] = mcp.transfer_priv[i];
-  mc->deposit_valid_until = GNUNET_TIME_absolute_ntoh (mcp.deposit_valid_until);
-  return off;
-}
-
-
-/**
- * Serialize information about a denomination key.
- *
- * @param dk information to serialize
- * @param buf buffer to write data in, NULL to just compute
- *            required size
- * @param off offeset at @a buf to use
- * @return number of bytes written to @a buf at @a off, or if
- *        @a buf is NULL, number of bytes required
- */
-static size_t
-serialize_denomination_key (const struct TALER_DenominationPublicKey *dk,
-                            char *buf,
-                            size_t off)
-{
-  char *pbuf;
-  size_t pbuf_size;
-  uint32_t be;
-
-  pbuf_size = GNUNET_CRYPTO_rsa_public_key_encode (dk->rsa_public_key,
-                                                   &pbuf);
-  if (NULL == buf)
-  {
-    GNUNET_free (pbuf);
-    return pbuf_size + sizeof (uint32_t);
-  }
-  be = htonl ((uint32_t) pbuf_size);
-  memcpy (&buf[off],
-          &be,
-          sizeof (uint32_t));
-  memcpy (&buf[off + sizeof (uint32_t)],
-          pbuf,
-          pbuf_size);
-  GNUNET_free (pbuf);
-  return pbuf_size + sizeof (uint32_t);
-}
-
-
-/**
- * Deserialize information about a denomination key.
- *
- * @param[out] dk information to deserialize
- * @param buf buffer to read data from
- * @param size number of bytes available at @a buf to use
- * @param[out] ok set to #GNUNET_NO to report errors
- * @return number of bytes read from @a buf, 0 on error
- */
-static size_t
-deserialize_denomination_key (struct TALER_DenominationPublicKey *dk,
-                              const char *buf,
-                              size_t size,
-                              int *ok)
-{
-  size_t pbuf_size;
-  uint32_t be;
-
-  if (size < sizeof (uint32_t))
-  {
-    GNUNET_break (0);
-    *ok = GNUNET_NO;
-    return 0;
-  }
-  memcpy (&be,
-          buf,
-          sizeof (uint32_t));
-  pbuf_size = ntohl (be);
-  if (size < sizeof (uint32_t) + pbuf_size)
-  {
-    GNUNET_break (0);
-    *ok = GNUNET_NO;
-    return 0;
-  }
-  dk->rsa_public_key
-    = GNUNET_CRYPTO_rsa_public_key_decode (&buf[sizeof (uint32_t)],
-                                           pbuf_size);
-
-  if (NULL == dk->rsa_public_key)
-  {
-    GNUNET_break (0);
-    *ok = GNUNET_NO;
-    return 0;
-  }
-  return sizeof (uint32_t) + pbuf_size;
-}
-
-
-/**
- * Serialize information about a fresh coin we are generating.
- *
- * @param fc information to serialize
- * @param buf buffer to write data in, NULL to just compute
- *            required size
- * @param off offeset at @a buf to use
- * @return number of bytes written to @a buf at @a off, or if
- *        @a buf is NULL, number of bytes required
- */
-static size_t
-serialize_fresh_coin (const struct FreshCoin *fc,
-                      char *buf,
-                      size_t off)
-{
-  struct FreshCoinP fcp;
-  char *bbuf;
-  size_t bbuf_size;
-
-  bbuf_size = GNUNET_CRYPTO_rsa_blinding_key_encode (fc->blinding_key.rsa_blinding_key,
-                                                     &bbuf);
-  if (NULL == buf)
-  {
-    GNUNET_free (bbuf);
-    return sizeof (struct FreshCoinP) + bbuf_size;
-  }
-  fcp.coin_priv = fc->coin_priv;
-  fcp.bbuf_size = htonl ((uint32_t) bbuf_size);
-  memcpy (&buf[off],
-          &fcp,
-          sizeof (struct FreshCoinP));
-  memcpy (&buf[off + sizeof (struct FreshCoinP)],
-          bbuf,
-          bbuf_size);
-  GNUNET_free (bbuf);
-  return sizeof (struct FreshCoinP) + bbuf_size;
-}
-
-
-/**
- * Deserialize information about a fresh coin we are generating.
- *
- * @param[out] fc information to deserialize
- * @param buf buffer to read data from
- * @param size number of bytes available at @a buf to use
- * @param[out] ok set to #GNUNET_NO to report errors
- * @return number of bytes read from @a buf, 0 on error
- */
-static size_t
-deserialize_fresh_coin (struct FreshCoin *fc,
-                        const char *buf,
-                        size_t size,
-                        int *ok)
-{
-  struct FreshCoinP fcp;
-  size_t bbuf_size;
-
-  if (size < sizeof (struct FreshCoinP))
-  {
-    GNUNET_break (0);
-    *ok = GNUNET_NO;
-    return 0;
-  }
-  memcpy (&fcp,
-          buf,
-          sizeof (struct FreshCoinP));
-  bbuf_size = ntohl (fcp.bbuf_size);
-  if (size < sizeof (struct FreshCoinP) + bbuf_size)
-  {
-    GNUNET_break (0);
-    *ok = GNUNET_NO;
-    return 0;
-  }
-  fc->blinding_key.rsa_blinding_key
-    = GNUNET_CRYPTO_rsa_blinding_key_decode (&buf[sizeof (struct FreshCoinP)],
-                                             bbuf_size);
-  if (NULL == fc->blinding_key.rsa_blinding_key)
-  {
-    GNUNET_break (0);
-    *ok = GNUNET_NO;
-    return 0;
-  }
-  fc->coin_priv = fcp.coin_priv;
-  return sizeof (struct FreshCoinP) + bbuf_size;
-}
-
-
-/**
- * Serialize melt data.
- *
- * @param md data to serialize
- * @param[out] res_size size of buffer returned
- * @return serialized melt data
- */
-static char *
-serialize_melt_data (const struct MeltData *md,
-                     size_t *res_size)
-{
-  size_t size;
-  size_t asize;
-  char *buf;
-  unsigned int i;
-  unsigned int j;
-
-  size = 0;
-  asize = (size_t) -1; /* make the compiler happy */
-  buf = NULL;
-  /* we do 2 iterations, #1 to determine total size, #2 to
-     actually construct the buffer */
-  do {
-    if (0 == size)
-    {
-      size = sizeof (struct MeltDataP);
-    }
-    else
-    {
-      struct MeltDataP *mdp;
-
-      buf = GNUNET_malloc (size);
-      asize = size; /* just for invariant check later */
-      size = sizeof (struct MeltDataP);
-      mdp = (struct MeltDataP *) buf;
-      mdp->melt_session_hash = md->melt_session_hash;
-      for (i=0;i<TALER_CNC_KAPPA;i++)
-        mdp->link_secrets[i] = md->link_secrets[i];
-      mdp->num_melted_coins = htons (md->num_melted_coins);
-      mdp->num_fresh_coins = htons (md->num_fresh_coins);
-    }
-    for (i=0;i<md->num_melted_coins;i++)
-      size += serialize_melted_coin (&md->melted_coins[i],
-                                     buf,
-                                     size);
-    for (i=0;i<md->num_fresh_coins;i++)
-      size += serialize_denomination_key (&md->fresh_pks[i],
-                                          buf,
-                                          size);
-    for (i=0;i<TALER_CNC_KAPPA;i++)
-      for(j=0;j<md->num_fresh_coins;j++)
-        size += serialize_fresh_coin (&md->fresh_coins[i][j],
-                                      buf,
-                                      size);
-  } while (NULL == buf);
-  GNUNET_assert (size == asize);
-  *res_size = size;
-  return buf;
-}
-
-
-/**
- * Deserialize melt data.
- *
- * @param buf serialized data
- * @param buf_size size of @a buf
- * @return deserialized melt data, NULL on error
- */
-static struct MeltData *
-deserialize_melt_data (const char *buf,
-                       size_t buf_size)
-{
-  struct MeltData *md;
-  struct MeltDataP mdp;
-  unsigned int i;
-  unsigned int j;
-  size_t off;
-  int ok;
-
-  if (buf_size < sizeof (struct MeltDataP))
-    return NULL;
-  memcpy (&mdp,
-          buf,
-          sizeof (struct MeltDataP));
-  md = GNUNET_new (struct MeltData);
-  md->melt_session_hash = mdp.melt_session_hash;
-  for (i=0;i<TALER_CNC_KAPPA;i++)
-    md->link_secrets[i] = mdp.link_secrets[i];
-  md->num_melted_coins = ntohs (mdp.num_melted_coins);
-  md->num_fresh_coins = ntohs (mdp.num_fresh_coins);
-  md->melted_coins = GNUNET_new_array (md->num_melted_coins,
-                                       struct MeltedCoin);
-  md->fresh_pks = GNUNET_new_array (md->num_fresh_coins,
-                                    struct TALER_DenominationPublicKey);
-  for (i=0;i<TALER_CNC_KAPPA;i++)
-    md->fresh_coins[i] = GNUNET_new_array (md->num_fresh_coins,
-                                           struct FreshCoin);
-  off = sizeof (struct MeltDataP);
-  ok = GNUNET_YES;
-  for (i=0;(i<md->num_melted_coins)&&(GNUNET_YES == ok);i++)
-    off += deserialize_melted_coin (&md->melted_coins[i],
-                                    &buf[off],
-                                    buf_size - off,
-                                    &ok);
-  for (i=0;(i<md->num_fresh_coins)&&(GNUNET_YES == ok);i++)
-    off += deserialize_denomination_key (&md->fresh_pks[i],
-                                         &buf[off],
-                                         buf_size - off,
-                                         &ok);
-
-  for (i=0;i<TALER_CNC_KAPPA;i++)
-    for(j=0;(j<md->num_fresh_coins)&&(GNUNET_YES == ok);j++)
-      off += deserialize_fresh_coin (&md->fresh_coins[i][j],
-                                     &buf[off],
-                                     buf_size - off,
-                                     &ok);
-  if (off != buf_size)
-  {
-    GNUNET_break (0);
-    ok = GNUNET_NO;
-  }
-  if (GNUNET_YES != ok)
-  {
-    free_melt_data (md);
-    GNUNET_free (md);
-    return NULL;
-  }
-  return md;
-}
-
-
-/**
- * Setup information for a fresh coin.
- *
- * @param[out] fc value to initialize
- * @param pk denomination information for the fresh coin
- */
-static void
-setup_fresh_coin (struct FreshCoin *fc,
-                  const struct TALER_MINT_DenomPublicKey *pk)
-{
-  struct GNUNET_CRYPTO_EddsaPrivateKey *epk;
-  unsigned int len;
-
-  epk = GNUNET_CRYPTO_eddsa_key_create ();
-  fc->coin_priv.eddsa_priv = *epk;
-  GNUNET_free (epk);
-  len = GNUNET_CRYPTO_rsa_public_key_len (pk->key.rsa_public_key);
-  fc->blinding_key.rsa_blinding_key
-    = GNUNET_CRYPTO_rsa_blinding_key_create (len);
-}
-
-
-/**
- * Melt (partially spent) coins to obtain fresh coins that are
- * unlinkable to the original coin(s).  Note that melting more
- * than one coin in a single request will make those coins linkable,
- * so the safest operation only melts one coin at a time.
- *
- * This API is typically used by a wallet.  Note that to ensure that
- * no money is lost in case of hardware failures, is operation does
- * not actually initiate the request. Instead, it generates a buffer
- * which the caller must store before proceeding with the actual call
- * to #TALER_MINT_refresh_melt() that will generate the request.
- *
- * This function does verify that the given request data is internally
- * consistent.  However, the @a melts_sigs are only verified if
- * @a check_sigs is set to #GNUNET_YES, as this may be relatively
- * expensive and should be redundant.
- *
- * Aside from some non-trivial cryptographic operations that might
- * take a bit of CPU time to complete, this function returns
- * its result immediately and does not start any asynchronous
- * processing.  This function is also thread-safe.
- *
- * @param num_melts number of coins that are being melted (typically 1)
- * @param melt_privs array of @a num_melts private keys of the coins to melt
- * @param melt_amounts array of @a num_melts amounts specifying how much
- *                     each coin will contribute to the melt (including fee)
- * @param melt_sigs array of @a num_melts signatures affirming the
- *                   validity of the public keys corresponding to the
- *                   @a melt_privs private keys
- * @param melt_pks array of @a num_melts denomination key information
- *                   records corresponding to the @a melt_sigs
- *                   validity of the keys
- * @param check_sigs verify the validity of the signatures of @a melt_sigs
- * @param fresh_pks_len length of the @a pks array
- * @param fresh_pks array of @a pks_len denominations of fresh coins to create
- * @param[out] res_size set to the size of the return value, or 0 on error
- * @return NULL
- *         if the inputs are invalid (i.e. denomination key not with this mint).
- *         Otherwise, pointer to a buffer of @a res_size to store persistently
- *         before proceeding to #TALER_MINT_refresh_melt().
- *         Non-null results should be freed using #GNUNET_free().
- */
-char *
-TALER_MINT_refresh_prepare (unsigned int num_melts,
-                            const struct TALER_CoinSpendPrivateKeyP *melt_privs,
-                            const struct TALER_Amount *melt_amounts,
-                            const struct TALER_DenominationSignature *melt_sigs,
-                            const struct TALER_MINT_DenomPublicKey *melt_pks,
-                            int check_sigs,
-                            unsigned int fresh_pks_len,
-                            const struct TALER_MINT_DenomPublicKey *fresh_pks,
-                            size_t *res_size)
-{
-  struct MeltData md;
-  char *buf;
-  unsigned int i;
-  unsigned int j;
-  struct GNUNET_HashContext *hash_context;
-
-  /* build up melt data structure */
-  for (i=0;i<TALER_CNC_KAPPA;i++)
-    GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_STRONG,
-                                &md.link_secrets[i],
-                                sizeof (struct TALER_LinkSecretP));
-  md.num_melted_coins = num_melts;
-  md.num_fresh_coins = fresh_pks_len;
-  md.melted_coins = GNUNET_new_array (num_melts,
-                                      struct MeltedCoin);
-  for (i=0;i<num_melts;i++)
-  {
-    md.melted_coins[i].coin_priv = melt_privs[i];
-    md.melted_coins[i].melt_amount_with_fee = melt_amounts[i];
-    md.melted_coins[i].fee_melt = melt_pks[i].fee_refresh;
-    md.melted_coins[i].original_value = melt_pks[i].value;
-    for (j=0;j<TALER_CNC_KAPPA;j++)
-    {
-      struct GNUNET_CRYPTO_EcdhePrivateKey *tpk;
-
-      tpk = GNUNET_CRYPTO_ecdhe_key_create ();
-      md.melted_coins[i].transfer_priv[j].ecdhe_priv = *tpk;
-      GNUNET_free (tpk);
-    }
-    md.melted_coins[i].deposit_valid_until
-      = melt_pks[i].deposit_valid_until;
-    md.melted_coins[i].pub_key.rsa_public_key
-      = GNUNET_CRYPTO_rsa_public_key_dup (melt_pks[i].key.rsa_public_key);
-    md.melted_coins[i].sig.rsa_signature
-      = GNUNET_CRYPTO_rsa_signature_dup (melt_sigs[i].rsa_signature);
-  }
-  md.fresh_pks = GNUNET_new_array (fresh_pks_len,
-                                   struct TALER_DenominationPublicKey);
-  for (i=0;i<fresh_pks_len;i++)
-    md.fresh_pks[i].rsa_public_key
-      = GNUNET_CRYPTO_rsa_public_key_dup (fresh_pks[i].key.rsa_public_key);
-  for (i=0;i<TALER_CNC_KAPPA;i++)
-  {
-    md.fresh_coins[i] = GNUNET_new_array (fresh_pks_len,
-                                          struct FreshCoin);
-    for (j=0;j<fresh_pks_len;j++)
-      setup_fresh_coin (&md.fresh_coins[i][j],
-                        &fresh_pks[j]);
-  }
-
-  /* now compute melt session hash */
-  hash_context = GNUNET_CRYPTO_hash_context_start ();
-  for (i=0;i<fresh_pks_len;i++)
-  {
-    char *buf;
-    size_t buf_size;
-
-    buf_size = GNUNET_CRYPTO_rsa_public_key_encode (fresh_pks[i].key.rsa_public_key,
-                                                    &buf);
-    GNUNET_CRYPTO_hash_context_read (hash_context,
-                                     buf,
-                                     buf_size);
-    GNUNET_free (buf);
-  }
-  for (i=0;i<num_melts;i++)
-  {
-    struct TALER_CoinSpendPublicKeyP coin_pub;
-    struct TALER_AmountNBO melt_amount;
-
-    GNUNET_CRYPTO_eddsa_key_get_public (&melt_privs[i].eddsa_priv,
-                                        &coin_pub.eddsa_pub);
-    GNUNET_CRYPTO_hash_context_read (hash_context,
-                                     &coin_pub,
-                                     sizeof (struct TALER_CoinSpendPublicKeyP));
-    TALER_amount_hton (&melt_amount,
-                       &melt_amounts[i]);
-    GNUNET_CRYPTO_hash_context_read (hash_context,
-                                     &melt_amount,
-                                     sizeof (struct TALER_AmountNBO));
-
-  }
-  for (i = 0; i < TALER_CNC_KAPPA; i++)
-  {
-    for (j = 0; j < fresh_pks_len; j++)
-    {
-      const struct FreshCoin *fc; /* coin this is about */
-      struct TALER_CoinSpendPublicKeyP coin_pub;
-      struct GNUNET_HashCode coin_hash;
-      char *coin_ev; /* blinded message to be signed (in envelope) for each coin */
-      size_t coin_ev_size;
-      struct TALER_RefreshLinkDecrypted rld;
-      struct TALER_RefreshLinkEncrypted *rle;
-      char *link_enc; /* encrypted link data */
-      size_t link_enc_size;
-
-      fc = &md.fresh_coins[i][j];
-      GNUNET_CRYPTO_eddsa_key_get_public (&fc->coin_priv.eddsa_priv,
-                                          &coin_pub.eddsa_pub);
-      GNUNET_CRYPTO_hash (&coin_pub.eddsa_pub,
-                          sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey),
-                          &coin_hash);
-      coin_ev_size = GNUNET_CRYPTO_rsa_blind (&coin_hash,
-                                              fc->blinding_key.rsa_blinding_key,
-                                              md.fresh_pks[j].rsa_public_key,
-                                              &coin_ev);
-      GNUNET_CRYPTO_hash_context_read (hash_context,
-                                       coin_ev,
-                                       coin_ev_size);
-      GNUNET_free (coin_ev);
-
-      rld.coin_priv = fc->coin_priv;
-      rld.blinding_key = fc->blinding_key;
-      rle = TALER_refresh_encrypt (&rld,
-                                   &md.link_secrets[i]);
-      link_enc = TALER_refresh_link_encrypted_encode (rle,
-                                                      &link_enc_size);
-
-      GNUNET_CRYPTO_hash_context_read (hash_context,
-                                       link_enc,
-                                       link_enc_size);
-      GNUNET_free (link_enc);
-    }
-  }
-  for (i = 0; i < TALER_CNC_KAPPA; i++)
-  {
-    for (j = 0; j < num_melts; j++)
-    {
-      struct TALER_RefreshCommitLinkP rcl;
-      struct TALER_TransferSecretP trans_sec;
-
-      GNUNET_CRYPTO_ecdhe_key_get_public (&md.melted_coins[j].transfer_priv[i].ecdhe_priv,
-                                          &rcl.transfer_pub.ecdhe_pub);
-      TALER_link_derive_transfer_secret  (&melt_privs[j],
-                                          &md.melted_coins[j].transfer_priv[i],
-                                          &trans_sec);
-      TALER_transfer_encrypt (&md.link_secrets[i],
-                              &trans_sec,
-                              &rcl.shared_secret_enc);
-      GNUNET_CRYPTO_hash_context_read (hash_context,
-                                       &rcl,
-                                       sizeof (struct TALER_RefreshCommitLinkP));
-    }
-  }
-
-  GNUNET_CRYPTO_hash_context_finish (hash_context,
-                                     &md.melt_session_hash);
-
-  /* finally, serialize everything */
-  buf = serialize_melt_data (&md,
-                             res_size);
-  free_melt_data (&md);
-  return buf;
-}
-
-
-/* ********************* /refresh/melt ***************************** */
-
-
-/**
- * @brief A /refresh/melt Handle
- */
-struct TALER_MINT_RefreshMeltHandle
-{
-
-  /**
-   * The connection to mint this request handle will use
-   */
-  struct TALER_MINT_Handle *mint;
-
-  /**
-   * The url for this request.
-   */
-  char *url;
-
-  /**
-   * JSON encoding of the request to POST.
-   */
-  char *json_enc;
-
-  /**
-   * Handle for the request.
-   */
-  struct MAC_Job *job;
-
-  /**
-   * Function to call with refresh melt failure results.
-   */
-  TALER_MINT_RefreshMeltCallback melt_cb;
-
-  /**
-   * Closure for @e result_cb and @e melt_failure_cb.
-   */
-  void *melt_cb_cls;
-
-  /**
-   * Download buffer
-   */
-  struct MAC_DownloadBuffer db;
-
-  /**
-   * Actual information about the melt operation.
-   */
-  struct MeltData *md;
-};
-
-
-/**
- * Verify that the signature on the "200 OK" response
- * from the mint is valid.
- *
- * @param rmh melt handle
- * @param json json reply with the signature
- * @param[out] noreveal_index set to the noreveal index selected by the mint
- * @return #GNUNET_OK if the signature is valid, #GNUNET_SYSERR if not
- */
-static int
-verify_refresh_melt_signature_ok (struct TALER_MINT_RefreshMeltHandle *rmh,
-                                  json_t *json,
-                                  uint16_t *noreveal_index)
-{
-  struct TALER_MintSignatureP mint_sig;
-  struct TALER_MintPublicKeyP mint_pub;
-  const struct TALER_MINT_Keys *key_state;
-  struct MAJ_Specification spec[] = {
-    MAJ_spec_fixed_auto ("mint_sig", &mint_sig),
-    MAJ_spec_fixed_auto ("mint_pub", &mint_pub),
-    MAJ_spec_uint16 ("noreveal_index", noreveal_index),
-    MAJ_spec_end
-  };
-  struct TALER_RefreshMeltConfirmationPS confirm;
-
-  if (GNUNET_OK !=
-      MAJ_parse_json (json,
-                      spec))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-
-  /* check that mint signing key is permitted */
-  key_state = TALER_MINT_get_keys (rmh->mint);
-  if (GNUNET_OK !=
-      TALER_MINT_test_signing_key (key_state,
-                                   &mint_pub))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-
-  /* check that noreveal index is in permitted range */
-  if (TALER_CNC_KAPPA <= *noreveal_index)
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-
-  /* verify signature by mint */
-  confirm.purpose.purpose = htonl (TALER_SIGNATURE_MINT_CONFIRM_MELT);
-  confirm.purpose.size = htonl (sizeof (struct TALER_RefreshMeltConfirmationPS));
-  confirm.session_hash = rmh->md->melt_session_hash;
-  confirm.noreveal_index = htons (*noreveal_index);
-  confirm.reserved = htons (0);
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MINT_CONFIRM_MELT,
-                                  &confirm.purpose,
-                                  &mint_sig.eddsa_signature,
-                                  &mint_pub.eddsa_pub))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Verify that the signatures on the "403 FORBIDDEN" response from the
- * mint demonstrating customer double-spending are valid.
- *
- * @param rmh melt handle
- * @param json json reply with the signature(s) and transaction history
- * @return #GNUNET_OK if the signature(s) is valid, #GNUNET_SYSERR if not
- */
-static int
-verify_refresh_melt_signature_forbidden (struct TALER_MINT_RefreshMeltHandle *rmh,
-                                         json_t *json)
-{
-  json_t *history;
-  struct TALER_Amount original_value;
-  struct TALER_Amount melt_value_with_fee;
-  struct TALER_Amount total;
-  struct TALER_CoinSpendPublicKeyP coin_pub;
-  unsigned int i;
-  struct MAJ_Specification spec[] = {
-    MAJ_spec_json ("history", &history),
-    MAJ_spec_fixed_auto ("coin_pub", &coin_pub),
-    MAJ_spec_amount ("original_value", &original_value),
-    MAJ_spec_amount ("requested_value", &melt_value_with_fee),
-    MAJ_spec_end
-  };
-  const struct MeltedCoin *mc;
-
-  /* parse JSON reply */
-  if (GNUNET_OK !=
-      MAJ_parse_json (json,
-                      spec))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-
-  /* Find out which coin was deemed problematic by the mint */
-  mc = NULL;
-  for (i=0;i<rmh->md->num_melted_coins;i++)
-  {
-    if (0 == TALER_amount_cmp (&melt_value_with_fee,
-                               &rmh->md->melted_coins[i].melt_amount_with_fee))
-    {
-      struct TALER_CoinSpendPublicKeyP mc_pub;
-
-      GNUNET_CRYPTO_eddsa_key_get_public (&rmh->md->melted_coins[i].coin_priv.eddsa_priv,
-                                          &mc_pub.eddsa_pub);
-      if (0 == memcmp (&mc_pub,
-                       &coin_pub,
-                       sizeof (struct TALER_CoinSpendPublicKeyP)))
-      {
-        mc = &rmh->md->melted_coins[i];
-        break;
-      }
-    }
-  }
-  if (NULL == mc)
-  {
-    /* coin not found in our original request */
-    GNUNET_break_op (0);
-    json_decref (history);
-    return GNUNET_SYSERR;
-  }
-
-  /* check basic coin properties */
-  if (0 != TALER_amount_cmp (&original_value,
-                             &mc->original_value))
-  {
-    /* We disagree on the value of the coin */
-    GNUNET_break_op (0);
-    json_decref (history);
-    return GNUNET_SYSERR;
-  }
-  if (0 != TALER_amount_cmp (&melt_value_with_fee,
-                             &mc->melt_amount_with_fee))
-  {
-    /* We disagree on the value of the coin */
-    GNUNET_break_op (0);
-    json_decref (history);
-    return GNUNET_SYSERR;
-  }
-
-  /* verify coin history */
-  history = json_object_get (json,
-                             "history");
-  if (GNUNET_OK !=
-      TALER_MINT_verify_coin_history_ (original_value.currency,
-                                       &coin_pub,
-                                       history,
-                                       &total))
-  {
-    GNUNET_break_op (0);
-    json_decref (history);
-    return GNUNET_SYSERR;
-  }
-  json_decref (history);
-
-  /* check if melt operation was really too expensive given history */
-  if (GNUNET_OK !=
-      TALER_amount_add (&total,
-                        &total,
-                        &melt_value_with_fee))
-  {
-    /* clearly not OK if our transaction would have caused
-       the overflow... */
-    return GNUNET_OK;
-  }
-
-  if (0 >= TALER_amount_cmp (&total,
-                             &original_value))
-  {
-    /* transaction should have still fit */
-    GNUNET_break (0);
-    return GNUNET_SYSERR;
-  }
-
-  /* everything OK, valid proof of double-spending was provided */
-  return GNUNET_OK;
-}
-
-
-/**
- * Function called when we're done processing the
- * HTTP /refresh/melt request.
- *
- * @param cls the `struct TALER_MINT_RefreshMeltHandle`
- * @param eh the curl request handle
- */
-static void
-handle_refresh_melt_finished (void *cls,
-                              CURL *eh)
-{
-  struct TALER_MINT_RefreshMeltHandle *rmh = cls;
-  long response_code;
-  json_t *json;
-  uint16_t noreveal_index = TALER_CNC_KAPPA; /* invalid value */
-
-  rmh->job = NULL;
-  json = MAC_download_get_result (&rmh->db,
-                                  eh,
-                                  &response_code);
-  switch (response_code)
-  {
-  case 0:
-    break;
-  case MHD_HTTP_OK:
-    if (GNUNET_OK !=
-        verify_refresh_melt_signature_ok (rmh,
-                                          json,
-                                          &noreveal_index))
-    {
-      GNUNET_break_op (0);
-      response_code = 0;
-    }
-    if (NULL != rmh->melt_cb)
-    {
-      rmh->melt_cb (rmh->melt_cb_cls,
-                    response_code,
-                    noreveal_index,
-                    json);
-      rmh->melt_cb = NULL;
-    }
-    break;
-  case MHD_HTTP_BAD_REQUEST:
-    /* This should never happen, either us or the mint is buggy
-       (or API version conflict); just pass JSON reply to the application */
-    break;
-  case MHD_HTTP_FORBIDDEN:
-    /* Double spending; check signatures on transaction history */
-    if (GNUNET_OK !=
-        verify_refresh_melt_signature_forbidden (rmh,
-                                                 json))
-    {
-      GNUNET_break_op (0);
-      response_code = 0;
-    }
-    break;
-  case MHD_HTTP_UNAUTHORIZED:
-    /* Nothing really to verify, mint says one of the signatures is
-       invalid; assuming we checked them, this should never happen, we
-       should pass the JSON reply to the application */
-    break;
-  case MHD_HTTP_NOT_FOUND:
-    /* Nothing really to verify, this should never
-       happen, we should pass the JSON reply to the application */
-    break;
-  case MHD_HTTP_INTERNAL_SERVER_ERROR:
-    /* Server had an internal issue; we should retry, but this API
-       leaves this to the application */
-    break;
-  default:
-    /* unexpected response code */
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u\n",
-                response_code);
-    GNUNET_break (0);
-    response_code = 0;
-    break;
-  }
-  if (NULL != rmh->melt_cb)
-    rmh->melt_cb (rmh->melt_cb_cls,
-                  response_code,
-                  UINT16_MAX,
-                  json);
-  json_decref (json);
-  TALER_MINT_refresh_melt_cancel (rmh);
-}
-
-
-/**
- * Convert a coin to be melted to the respective JSON encoding.
- *
- * @param melt_session_hash session hash to use
- * @param mc coin to be melted
- * @return JSON encoding of the melting request
- */
-static json_t *
-melted_coin_to_json (const struct GNUNET_HashCode *melt_session_hash,
-                     const struct MeltedCoin *mc)
-{
-  struct TALER_CoinSpendSignatureP confirm_sig;
-  struct TALER_RefreshMeltCoinAffirmationPS melt;
-
-  melt.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_MELT);
-  melt.purpose.size = htonl (sizeof (struct TALER_RefreshMeltCoinAffirmationPS));
-  melt.session_hash = *melt_session_hash;
-  TALER_amount_hton (&melt.amount_with_fee,
-                     &mc->melt_amount_with_fee);
-  TALER_amount_hton (&melt.melt_fee,
-                     &mc->fee_melt);
-  GNUNET_CRYPTO_eddsa_key_get_public (&mc->coin_priv.eddsa_priv,
-                                      &melt.coin_pub.eddsa_pub);
-  GNUNET_CRYPTO_eddsa_sign (&mc->coin_priv.eddsa_priv,
-                            &melt.purpose,
-                            &confirm_sig.eddsa_signature);
-  return json_pack ("{s:o, s:o, s:o, s:o, s:o}",
-                    "coin_pub",
-                    TALER_json_from_data (&melt.coin_pub,
-                                          sizeof (melt.coin_pub)),
-                    "denom_pub",
-                    TALER_json_from_rsa_public_key (mc->pub_key.rsa_public_key),
-                    "denom_sig",
-                    TALER_json_from_rsa_signature (mc->sig.rsa_signature),
-                    "confirm_sig",
-                    TALER_json_from_data (&confirm_sig,
-                                          sizeof (confirm_sig)),
-                    "value_with_fee",
-                    TALER_json_from_amount (&mc->melt_amount_with_fee));
-}
-
-
-/**
- * Submit a melt request to the mint and get the mint's
- * response.
- *
- * This API is typically used by a wallet.  Note that to ensure that
- * no money is lost in case of hardware failures, the provided
- * argument should have been constructed using
- * #TALER_MINT_refresh_prepare and committed to persistent storage
- * prior to calling this function.
- *
- * @param mint the mint handle; the mint must be ready to operate
- * @param refresh_data_length size of the @a refresh_data (returned
- *        in the `res_size` argument from #TALER_MINT_refresh_prepare())
- * @param refresh_data the refresh data as returned from
-          #TALER_MINT_refresh_prepare())
- * @param melt_cb the callback to call with the result
- * @param melt_cb_cls closure for @a melt_cb
- * @return a handle for this request; NULL if the argument was invalid.
- *         In this case, neither callback will be called.
- */
-struct TALER_MINT_RefreshMeltHandle *
-TALER_MINT_refresh_melt (struct TALER_MINT_Handle *mint,
-                         size_t refresh_data_length,
-                         const char *refresh_data,
-                         TALER_MINT_RefreshMeltCallback melt_cb,
-                         void *melt_cb_cls)
-{
-  json_t *melt_obj;
-  json_t *new_denoms;
-  json_t *melt_coins;
-  json_t *coin_evs;
-  json_t *transfer_pubs;
-  json_t *secret_encs;
-  json_t *link_encs;
-  json_t *tmp;
-  struct TALER_MINT_RefreshMeltHandle *rmh;
-  CURL *eh;
-  struct TALER_MINT_Context *ctx;
-  struct MeltData *md;
-  unsigned int i;
-  unsigned int j;
-
-  if (GNUNET_YES !=
-      MAH_handle_is_ready (mint))
-  {
-    GNUNET_break (0);
-    return NULL;
-  }
-  md = deserialize_melt_data (refresh_data,
-                              refresh_data_length);
-  if (NULL == md)
-  {
-    GNUNET_break (0);
-    return NULL;
-  }
-
-  /* build JSON request, each of the 6 arrays first */
-  new_denoms = json_array ();
-  melt_coins = json_array ();
-  coin_evs = json_array ();
-  transfer_pubs = json_array ();
-  secret_encs = json_array ();
-  link_encs = json_array ();
-  for (i=0;i<md->num_melted_coins;i++)
-  {
-    const struct MeltedCoin *mc = &md->melted_coins[i];
-
-    /* now melt_coins */
-    json_array_append (melt_coins,
-                       melted_coin_to_json (&md->melt_session_hash,
-                                            mc));
-  }
-
-  /* now transfer_pubs */
-  for (j=0;j<TALER_CNC_KAPPA;j++)
-  {
-    tmp = json_array ();
-    for (i=0;i<md->num_melted_coins;i++)
-    {
-      const struct MeltedCoin *mc = &md->melted_coins[i];
-      struct TALER_TransferPublicKeyP transfer_pub;
-
-      GNUNET_CRYPTO_ecdhe_key_get_public (&mc->transfer_priv[j].ecdhe_priv,
-                                          &transfer_pub.ecdhe_pub);
-      json_array_append (tmp,
-                         TALER_json_from_data (&transfer_pub,
-                                               sizeof (transfer_pub)));
-    }
-    json_array_append (transfer_pubs,
-                       tmp);
-  }
-
-  /* now secret_encs */
-  for (j=0;j<TALER_CNC_KAPPA;j++)
-  {
-    tmp = json_array ();
-    for (i=0;i<md->num_melted_coins;i++)
-    {
-      const struct MeltedCoin *mc = &md->melted_coins[i];
-      struct TALER_EncryptedLinkSecretP els;
-      struct TALER_TransferSecretP trans_sec;
-
-      TALER_link_derive_transfer_secret (&mc->coin_priv,
-                                         &mc->transfer_priv[j],
-                                         &trans_sec);
-      GNUNET_assert (GNUNET_OK ==
-                     TALER_transfer_encrypt (&md->link_secrets[j],
-                                             &trans_sec,
-                                             &els));
-      json_array_append (tmp,
-                         TALER_json_from_data (&els,
-                                               sizeof (els)));
-    }
-    json_array_append (secret_encs,
-                       tmp);
-  }
-
-  /* now new_denoms */
-  for (i=0;i<md->num_fresh_coins;i++)
-  {
-    json_array_append (new_denoms,
-                       TALER_json_from_rsa_public_key
-                       (md->fresh_pks[i].rsa_public_key));
-  }
-
-  /* now link_encs */
-  for (j=0;j<TALER_CNC_KAPPA;j++)
-  {
-    tmp = json_array ();
-    for (i=0;i<md->num_fresh_coins;i++)
-    {
-      const struct FreshCoin *fc = &md->fresh_coins[j][i];
-      struct TALER_RefreshLinkDecrypted rld;
-      struct TALER_RefreshLinkEncrypted *rle;
-      char *buf;
-      size_t buf_len;
-
-      rld.coin_priv = fc->coin_priv;
-      rld.blinding_key = fc->blinding_key;
-      rle = TALER_refresh_encrypt (&rld,
-                                   &md->link_secrets[j]);
-      GNUNET_assert (NULL != rle);
-      buf = TALER_refresh_link_encrypted_encode (rle,
-                                                 &buf_len);
-      GNUNET_assert (NULL != buf);
-      json_array_append (tmp,
-                         TALER_json_from_data (buf,
-                                               buf_len));
-      GNUNET_free (buf);
-      GNUNET_free (rle);
-    }
-    json_array_append (link_encs,
-                       tmp);
-  }
-
-  /* now coin_evs */
-  for (j=0;j<TALER_CNC_KAPPA;j++)
-  {
-    tmp = json_array ();
-    for (i=0;i<md->num_fresh_coins;i++)
-    {
-      const struct FreshCoin *fc = &md->fresh_coins[j][i];
-      struct TALER_CoinSpendPublicKeyP coin_pub;
-      struct GNUNET_HashCode coin_hash;
-      char *coin_ev; /* blinded message to be signed (in envelope) for each coin */
-      size_t coin_ev_size;
-
-      GNUNET_CRYPTO_eddsa_key_get_public (&fc->coin_priv.eddsa_priv,
-                                          &coin_pub.eddsa_pub);
-      GNUNET_CRYPTO_hash (&coin_pub.eddsa_pub,
-                          sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey),
-                          &coin_hash);
-      coin_ev_size = GNUNET_CRYPTO_rsa_blind (&coin_hash,
-                                              fc->blinding_key.rsa_blinding_key,
-                                              md->fresh_pks[i].rsa_public_key,
-                                              &coin_ev);
-      json_array_append (tmp,
-                         TALER_json_from_data (coin_ev,
-                                               coin_ev_size));
-      GNUNET_free (coin_ev);
-    }
-    json_array_append (coin_evs,
-                       tmp);
-  }
-
-  /* finally, assemble main JSON request from constitutent arrays */
-  melt_obj = json_pack ("{s:o, s:o, s:o, s:o, s:o, s:o}",
-                        "new_denoms", new_denoms,
-                        "melt_coins", melt_coins,
-                        "coin_evs", coin_evs,
-                        "transfer_pubs", transfer_pubs,
-                        "secret_encs", secret_encs,
-                        "link_encs", link_encs);
-
-  /* and now we can at last begin the actual request handling */
-  rmh = GNUNET_new (struct TALER_MINT_RefreshMeltHandle);
-  rmh->mint = mint;
-  rmh->melt_cb = melt_cb;
-  rmh->melt_cb_cls = melt_cb_cls;
-  rmh->md = md;
-  rmh->url = MAH_path_to_url (mint,
-                              "/refresh/melt");
-
-  eh = curl_easy_init ();
-  GNUNET_assert (NULL != (rmh->json_enc =
-                          json_dumps (melt_obj,
-                                      JSON_COMPACT)));
-  json_decref (melt_obj);
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_URL,
-                                   rmh->url));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_POSTFIELDS,
-                                   rmh->json_enc));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_POSTFIELDSIZE,
-                                   strlen (rmh->json_enc)));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEFUNCTION,
-                                   &MAC_download_cb));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEDATA,
-                                   &rmh->db));
-  ctx = MAH_handle_to_context (mint);
-  rmh->job = MAC_job_add (ctx,
-                          eh,
-                          GNUNET_YES,
-                          &handle_refresh_melt_finished,
-                          rmh);
-  return rmh;
-}
-
-
-/**
- * Cancel a refresh execute request.  This function cannot be used
- * on a request handle if either callback was already invoked.
- *
- * @param rmh the refresh melt handle
- */
-void
-TALER_MINT_refresh_melt_cancel (struct TALER_MINT_RefreshMeltHandle *rmh)
-{
-  if (NULL != rmh->job)
-  {
-    MAC_job_cancel (rmh->job);
-    rmh->job = NULL;
-  }
-  GNUNET_free_non_null (rmh->db.buf);
-  free_melt_data (rmh->md); /* does not free 'md' itself */
-  GNUNET_free (rmh->md);
-  GNUNET_free (rmh->url);
-  GNUNET_free (rmh->json_enc);
-  GNUNET_free (rmh);
-}
-
-
-/* ********************* /refresh/reveal ***************************** */
-
-
-/**
- * @brief A /refresh/reveal Handle
- */
-struct TALER_MINT_RefreshRevealHandle
-{
-
-  /**
-   * The connection to mint this request handle will use
-   */
-  struct TALER_MINT_Handle *mint;
-
-  /**
-   * The url for this request.
-   */
-  char *url;
-
-  /**
-   * JSON encoding of the request to POST.
-   */
-  char *json_enc;
-
-  /**
-   * Handle for the request.
-   */
-  struct MAC_Job *job;
-
-  /**
-   * Function to call with the result.
-   */
-  TALER_MINT_RefreshRevealCallback reveal_cb;
-
-  /**
-   * Closure for @e reveal_cb.
-   */
-  void *reveal_cb_cls;
-
-  /**
-   * Download buffer
-   */
-  struct MAC_DownloadBuffer db;
-
-  /**
-   * Actual information about the melt operation.
-   */
-  struct MeltData *md;
-
-  /**
-   * The index selected by the mint in cut-and-choose to not be revealed.
-   */
-  uint16_t noreveal_index;
-
-};
-
-
-/**
- * We got a 200 OK response for the /refresh/reveal operation.
- * Extract the coin signatures and return them to the caller.
- * The signatures we get from the mint is for the blinded value.
- * Thus, we first must unblind them and then should verify their
- * validity.
- *
- * If everything checks out, we return the unblinded signatures
- * to the application via the callback.
- *
- * @param rrh operation handle
- * @param json reply from the mint
- * @param[out] coin_privs array of length `num_fresh_coins`, initialized to contain private keys
- * @param[out] sigs array of length `num_fresh_coins`, initialized to cointain RSA signatures
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on errors
- */
-static int
-refresh_reveal_ok (struct TALER_MINT_RefreshRevealHandle *rrh,
-                   json_t *json,
-                   struct TALER_CoinSpendPrivateKeyP *coin_privs,
-                   struct TALER_DenominationSignature *sigs)
-{
-  unsigned int i;
-  json_t *jsona;
-  struct MAJ_Specification spec[] = {
-    MAJ_spec_json ("ev_sigs", &jsona),
-    MAJ_spec_end
-  };
-
-  if (GNUNET_OK !=
-      MAJ_parse_json (json,
-		      spec))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  if (! json_is_array (jsona))
-  {
-    /* We expected an array of coins */
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  if (rrh->md->num_fresh_coins != json_array_size (jsona))
-  {
-    /* Number of coins generated does not match our expectation */
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  for (i=0;i<rrh->md->num_fresh_coins;i++)
-  {
-    const struct FreshCoin *fc;
-    struct TALER_DenominationPublicKey *pk;
-    json_t *jsonai;
-    struct GNUNET_CRYPTO_rsa_Signature *blind_sig;
-    struct GNUNET_CRYPTO_rsa_Signature *sig;
-    struct TALER_CoinSpendPublicKeyP coin_pub;
-    struct GNUNET_HashCode coin_hash;
-
-    struct MAJ_Specification spec[] = {
-      MAJ_spec_rsa_signature ("ev_sig", &blind_sig),
-      MAJ_spec_end
-    };
-
-    fc = &rrh->md->fresh_coins[rrh->noreveal_index][i];
-    pk = &rrh->md->fresh_pks[i];
-    jsonai = json_array_get (jsona, i);
-    GNUNET_assert (NULL != jsonai);
-
-    if (GNUNET_OK !=
-        MAJ_parse_json (jsonai,
-                        spec))
-    {
-      GNUNET_break_op (0);
-      return GNUNET_SYSERR;
-    }
-
-    /* unblind the signature */
-    sig = GNUNET_CRYPTO_rsa_unblind (blind_sig,
-                                     fc->blinding_key.rsa_blinding_key,
-                                     pk->rsa_public_key);
-    GNUNET_CRYPTO_rsa_signature_free (blind_sig);
-
-    /* verify the signature */
-    GNUNET_CRYPTO_eddsa_key_get_public (&fc->coin_priv.eddsa_priv,
-                                        &coin_pub.eddsa_pub);
-    GNUNET_CRYPTO_hash (&coin_pub.eddsa_pub,
-                        sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey),
-                        &coin_hash);
-
-    if (GNUNET_OK !=
-        GNUNET_CRYPTO_rsa_verify (&coin_hash,
-                                  sig,
-                                  pk->rsa_public_key))
-    {
-      GNUNET_break_op (0);
-      GNUNET_CRYPTO_rsa_signature_free (sig);
-      return GNUNET_SYSERR;
-    }
-    coin_privs[i] = fc->coin_priv;
-    sigs[i].rsa_signature = sig;
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Function called when we're done processing the
- * HTTP /refresh/reveal request.
- *
- * @param cls the `struct TALER_MINT_RefreshHandle`
- * @param eh the curl request handle
- */
-static void
-handle_refresh_reveal_finished (void *cls,
-                                CURL *eh)
-{
-  struct TALER_MINT_RefreshRevealHandle *rrh = cls;
-  long response_code;
-  json_t *json;
-
-  rrh->job = NULL;
-  json = MAC_download_get_result (&rrh->db,
-                                  eh,
-                                  &response_code);
-  switch (response_code)
-  {
-  case 0:
-    break;
-  case MHD_HTTP_OK:
-    {
-      struct TALER_CoinSpendPrivateKeyP coin_privs[rrh->md->num_fresh_coins];
-      struct TALER_DenominationSignature sigs[rrh->md->num_fresh_coins];
-      unsigned int i;
-      int ret;
-
-      memset (sigs, 0, sizeof (sigs));
-      ret = refresh_reveal_ok (rrh,
-                               json,
-                               coin_privs,
-                               sigs);
-      if (GNUNET_OK != ret)
-      {
-        response_code = 0;
-      }
-      else
-      {
-        rrh->reveal_cb (rrh->reveal_cb_cls,
-                        MHD_HTTP_OK,
-                        rrh->md->num_fresh_coins,
-                        coin_privs,
-                        sigs,
-                        json);
-        rrh->reveal_cb = NULL;
-      }
-      for (i=0;i<rrh->md->num_fresh_coins;i++)
-        if (NULL != sigs[i].rsa_signature)
-          GNUNET_CRYPTO_rsa_signature_free (sigs[i].rsa_signature);
-    }
-    break;
-  case MHD_HTTP_BAD_REQUEST:
-    /* This should never happen, either us or the mint is buggy
-       (or API version conflict); just pass JSON reply to the application */
-    break;
-  case MHD_HTTP_CONFLICT:
-    /* Nothing really to verify, mint says our reveal is inconsitent
-       with our commitment, so either side is buggy; we
-       should pass the JSON reply to the application */
-    break;
-  case MHD_HTTP_INTERNAL_SERVER_ERROR:
-    /* Server had an internal issue; we should retry, but this API
-       leaves this to the application */
-    break;
-  default:
-    /* unexpected response code */
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u\n",
-                response_code);
-    GNUNET_break (0);
-    response_code = 0;
-    break;
-  }
-  if (NULL != rrh->reveal_cb)
-    rrh->reveal_cb (rrh->reveal_cb_cls,
-                    response_code,
-                    0, NULL, NULL,
-                    json);
-  json_decref (json);
-  TALER_MINT_refresh_reveal_cancel (rrh);
-}
-
-
-/**
- * Submit a /refresh/reval request to the mint and get the mint's
- * response.
- *
- * This API is typically used by a wallet.  Note that to ensure that
- * no money is lost in case of hardware failures, the provided
- * arguments should have been committed to persistent storage
- * prior to calling this function.
- *
- * @param mint the mint handle; the mint must be ready to operate
- * @param refresh_data_length size of the @a refresh_data (returned
- *        in the `res_size` argument from #TALER_MINT_refresh_prepare())
- * @param refresh_data the refresh data as returned from
-          #TALER_MINT_refresh_prepare())
- * @param noreveal_index response from the mint to the
- *        #TALER_MINT_refresh_melt() invocation
- * @param reveal_cb the callback to call with the final result of the
- *        refresh operation
- * @param reveal_cb_cls closure for the above callback
- * @return a handle for this request; NULL if the argument was invalid.
- *         In this case, neither callback will be called.
- */
-struct TALER_MINT_RefreshRevealHandle *
-TALER_MINT_refresh_reveal (struct TALER_MINT_Handle *mint,
-                           size_t refresh_data_length,
-                           const char *refresh_data,
-                           uint16_t noreveal_index,
-                           TALER_MINT_RefreshRevealCallback reveal_cb,
-                           void *reveal_cb_cls)
-{
-  struct TALER_MINT_RefreshRevealHandle *rrh;
-  json_t *transfer_privs;
-  json_t *reveal_obj;
-  json_t *tmp;
-  CURL *eh;
-  struct TALER_MINT_Context *ctx;
-  struct MeltData *md;
-  unsigned int i;
-  unsigned int j;
-
-  if (GNUNET_YES !=
-      MAH_handle_is_ready (mint))
-  {
-    GNUNET_break (0);
-    return NULL;
-  }
-  md = deserialize_melt_data (refresh_data,
-                              refresh_data_length);
-  if (NULL == md)
-  {
-    GNUNET_break (0);
-    return NULL;
-  }
-  if (noreveal_index >= TALER_CNC_KAPPA)
-  {
-    /* We check this here, as it would be really bad to below just
-       disclose all the transfer keys. Note that this error should
-       have been caught way earlier when the mint replied, but maybe
-       we had some internal corruption that changed the value... */
-    GNUNET_break (0);
-    return NULL;
-  }
-
-  /* build array of transfer private keys */
-  transfer_privs = json_array ();
-  for (j=0;j<TALER_CNC_KAPPA;j++)
-  {
-    if (j == noreveal_index)
-    {
-      /* This is crucial: exclude the transfer key for the
-	 noreval index! */
-      continue;
-    }
-    tmp = json_array ();
-    for (i=0;i<md->num_melted_coins;i++)
-    {
-      const struct MeltedCoin *mc = &md->melted_coins[i];
-
-      json_array_append (tmp,
-                         TALER_json_from_data (&mc->transfer_priv[j],
-                                               sizeof (struct TALER_TransferPrivateKeyP)));
-    }
-    json_array_append (transfer_privs,
-                       tmp);
-  }
-
-  /* build main JSON request */
-  reveal_obj = json_pack ("{s:o, s:o}",
-                          "session_hash",
-                          TALER_json_from_data (&md->melt_session_hash,
-                                                sizeof (struct GNUNET_HashCode)),
-                          "transfer_privs",
-                          transfer_privs);
-
-  /* finally, we can actually issue the request */
-  rrh = GNUNET_new (struct TALER_MINT_RefreshRevealHandle);
-  rrh->mint = mint;
-  rrh->noreveal_index = noreveal_index;
-  rrh->reveal_cb = reveal_cb;
-  rrh->reveal_cb_cls = reveal_cb_cls;
-  rrh->md = md;
-  rrh->url = MAH_path_to_url (rrh->mint,
-                              "/refresh/reveal");
-
-  eh = curl_easy_init ();
-  GNUNET_assert (NULL != (rrh->json_enc =
-                          json_dumps (reveal_obj,
-                                      JSON_COMPACT)));
-  json_decref (reveal_obj);
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_URL,
-                                   rrh->url));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_POSTFIELDS,
-                                   rrh->json_enc));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_POSTFIELDSIZE,
-                                   strlen (rrh->json_enc)));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEFUNCTION,
-                                   &MAC_download_cb));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEDATA,
-                                   &rrh->db));
-  ctx = MAH_handle_to_context (rrh->mint);
-  rrh->job = MAC_job_add (ctx,
-                          eh,
-                          GNUNET_YES,
-                          &handle_refresh_reveal_finished,
-                          rrh);
-  return rrh;
-}
-
-
-/**
- * Cancel a refresh reveal request.  This function cannot be used
- * on a request handle if the callback was already invoked.
- *
- * @param rrh the refresh reval handle
- */
-void
-TALER_MINT_refresh_reveal_cancel (struct TALER_MINT_RefreshRevealHandle *rrh)
-{
-  if (NULL != rrh->job)
-  {
-    MAC_job_cancel (rrh->job);
-    rrh->job = NULL;
-  }
-  GNUNET_free_non_null (rrh->db.buf);
-  GNUNET_free (rrh->url);
-  GNUNET_free (rrh->json_enc);
-  free_melt_data (rrh->md); /* does not free 'md' itself */
-  GNUNET_free (rrh->md);
-  GNUNET_free (rrh);
-}
-
-
-/* end of mint_api_refresh.c */
diff --git a/src/mint-lib/mint_api_refresh_link.c b/src/mint-lib/mint_api_refresh_link.c
deleted file mode 100644
index dcd2326ca..000000000
--- a/src/mint-lib/mint_api_refresh_link.c
+++ /dev/null
@@ -1,482 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2015, 2016 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see
-  <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-lib/mint_api_refresh_link.c
- * @brief Implementation of the /refresh/link request of the mint's HTTP API
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <curl/curl.h>
-#include <jansson.h>
-#include <microhttpd.h> /* just for HTTP status codes */
-#include <gnunet/gnunet_util_lib.h>
-#include "taler_mint_service.h"
-#include "mint_api_json.h"
-#include "mint_api_context.h"
-#include "mint_api_handle.h"
-#include "taler_signatures.h"
-
-
-/**
- * @brief A /refresh/link Handle
- */
-struct TALER_MINT_RefreshLinkHandle
-{
-
-  /**
-   * The connection to mint this request handle will use
-   */
-  struct TALER_MINT_Handle *mint;
-
-  /**
-   * The url for this request.
-   */
-  char *url;
-
-  /**
-   * Handle for the request.
-   */
-  struct MAC_Job *job;
-
-  /**
-   * Function to call with the result.
-   */
-  TALER_MINT_RefreshLinkCallback link_cb;
-
-  /**
-   * Closure for @e cb.
-   */
-  void *link_cb_cls;
-
-  /**
-   * Download buffer
-   */
-  struct MAC_DownloadBuffer db;
-
-  /**
-   * Private key of the coin, required to decode link information.
-   */
-  struct TALER_CoinSpendPrivateKeyP coin_priv;
-
-};
-
-
-/**
- * Parse the provided linkage data from the "200 OK" response
- * for one of the coins.
- *
- * @param rlh refresh link handle
- * @param json json reply with the data for one coin
- * @param trans_pub our transfer public key
- * @param secret_enc encrypted key to decrypt link data
- * @param[out] coin_priv where to return private coin key
- * @param[out] sig where to return private coin signature
- * @param[out] pub where to return the public key for the coin
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
- */
-static int
-parse_refresh_link_coin (const struct TALER_MINT_RefreshLinkHandle *rlh,
-                         json_t *json,
-                         const struct TALER_TransferPublicKeyP *trans_pub,
-                         const struct TALER_EncryptedLinkSecretP *secret_enc,
-                         struct TALER_CoinSpendPrivateKeyP *coin_priv,
-                         struct TALER_DenominationSignature *sig,
-                         struct TALER_DenominationPublicKey *pub)
-{
-  void *link_enc;
-  size_t link_enc_size;
-  struct GNUNET_CRYPTO_rsa_Signature *bsig;
-  struct GNUNET_CRYPTO_rsa_PublicKey *rpub;
-  struct MAJ_Specification spec[] = {
-    MAJ_spec_varsize ("link_enc", &link_enc, &link_enc_size),
-    MAJ_spec_rsa_public_key ("denom_pub", &rpub),
-    MAJ_spec_rsa_signature ("ev_sig", &bsig),
-    MAJ_spec_end
-  };
-  struct TALER_RefreshLinkEncrypted *rle;
-  struct TALER_RefreshLinkDecrypted *rld;
-  struct TALER_LinkSecretP secret;
-
-  /* parse reply */
-  if (GNUNET_OK !=
-      MAJ_parse_json (json,
-                      spec))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-
-  /* decode and decrypt link data */
-  rle = TALER_refresh_link_encrypted_decode (link_enc,
-                                             link_enc_size);
-  if (NULL == rle)
-  {
-    GNUNET_break_op (0);
-    MAJ_parse_free (spec);
-    return GNUNET_SYSERR;
-  }
-  if (GNUNET_OK !=
-      TALER_link_decrypt_secret2 (secret_enc,
-                                  trans_pub,
-                                  &rlh->coin_priv,
-                                  &secret))
-  {
-    GNUNET_break_op (0);
-    MAJ_parse_free (spec);
-    return GNUNET_SYSERR;
-  }
-  rld = TALER_refresh_decrypt (rle,
-                               &secret);
-  if (NULL == rld)
-  {
-    GNUNET_break_op (0);
-    MAJ_parse_free (spec);
-    return GNUNET_SYSERR;
-  }
-
-  /* extract coin and signature */
-  *coin_priv = rld->coin_priv;
-  sig->rsa_signature
-    = GNUNET_CRYPTO_rsa_unblind (bsig,
-                                 rld->blinding_key.rsa_blinding_key,
-                                 rpub);
-
-  /* clean up */
-  GNUNET_free (rld);
-  pub->rsa_public_key = GNUNET_CRYPTO_rsa_public_key_dup (rpub);
-  MAJ_parse_free (spec);
-  return GNUNET_OK;
-}
-
-
-/**
- * Parse the provided linkage data from the "200 OK" response
- * for one of the coins.
- *
- * @param[in,out] rlh refresh link handle (callback may be zero'ed out)
- * @param json json reply with the data for one coin
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
- */
-static int
-parse_refresh_link_ok (struct TALER_MINT_RefreshLinkHandle *rlh,
-                       json_t *json)
-{
-  unsigned int session;
-  unsigned int num_coins;
-  int ret;
-
-  if (! json_is_array (json))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  num_coins = 0;
-  /* Theoretically, a coin may have been melted repeatedly
-     into different sessions; so the response is an array
-     which contains information by melting session.  That
-     array contains another array.  However, our API returns
-     a single 1d array, so we flatten the 2d array that is
-     returned into a single array. Note that usually a coin
-     is melted at most once, and so we'll only run this
-     loop once for 'session=0' in most cases.
-
-     num_coins tracks the size of the 1d array we return,
-     whilst 'i' and 'session' track the 2d array. */
-  for (session=0;session<json_array_size (json); session++)
-  {
-    json_t *jsona;
-    struct MAJ_Specification spec[] = {
-      MAJ_spec_json ("new_coins", &jsona),
-      MAJ_spec_end
-    };
-
-    if (GNUNET_OK !=
-	MAJ_parse_json (json_array_get (json,
-					session),
-			spec))
-    {
-      GNUNET_break_op (0);
-      return GNUNET_SYSERR;
-    }
-    if (! json_is_array (jsona))
-    {
-      GNUNET_break_op (0);
-      MAJ_parse_free (spec);
-      return GNUNET_SYSERR;
-    }
-
-    /* count all coins over all sessions */
-    num_coins += json_array_size (jsona);
-    MAJ_parse_free (spec);
-  }
-  /* Now that we know how big the 1d array is, allocate
-     and fill it. */
-  {
-    unsigned int off_coin; /* index into 1d array */
-    unsigned int i;
-    struct TALER_CoinSpendPrivateKeyP coin_privs[num_coins];
-    struct TALER_DenominationSignature sigs[num_coins];
-    struct TALER_DenominationPublicKey pubs[num_coins];
-
-    memset (sigs, 0, sizeof (sigs));
-    memset (pubs, 0, sizeof (pubs));
-    off_coin = 0;
-    for (session=0;session<json_array_size (json); session++)
-    {
-      json_t *jsona;
-      struct TALER_TransferPublicKeyP trans_pub;
-      struct TALER_EncryptedLinkSecretP secret_enc;
-      struct MAJ_Specification spec[] = {
-	MAJ_spec_json ("new_coins", &jsona),
-	MAJ_spec_fixed_auto ("transfer_pub", &trans_pub),
-	MAJ_spec_fixed_auto ("secret_enc", &secret_enc),
-	MAJ_spec_end
-      };
-
-      if (GNUNET_OK !=
-	  MAJ_parse_json (json_array_get (json,
-					  session),
-			  spec))
-      {
-	GNUNET_break_op (0);
-	return GNUNET_SYSERR;
-      }
-      if (! json_is_array (jsona))
-      {
-	GNUNET_break_op (0);
-	MAJ_parse_free (spec);
-	return GNUNET_SYSERR;
-      }
-
-      /* decode all coins */
-      for (i=0;i<json_array_size (jsona);i++)
-      {
-	if (GNUNET_OK !=
-	    parse_refresh_link_coin (rlh,
-				     json_array_get (jsona,
-						     i),
-				     &trans_pub,
-				     &secret_enc,
-				     &coin_privs[i+off_coin],
-				     &sigs[i+off_coin],
-				     &pubs[i+off_coin]))
-	{
-	  GNUNET_break_op (0);
-	  break;
-	}
-      }
-      /* check if we really got all, then invoke callback */
-      off_coin += i;
-      if (i != json_array_size (jsona))
-      {
-	GNUNET_break_op (0);
-	ret = GNUNET_SYSERR;
-	MAJ_parse_free (spec);
-	break;
-      }
-      MAJ_parse_free (spec);
-    } /* end of for (session) */
-
-    if (off_coin == num_coins)
-    {
-      rlh->link_cb (rlh->link_cb_cls,
-		    MHD_HTTP_OK,
-		    num_coins,
-		    coin_privs,
-		    sigs,
-		    pubs,
-		    json);
-      rlh->link_cb = NULL;
-      ret = GNUNET_OK;
-    }
-    else
-    {
-      GNUNET_break_op (0);
-      ret = GNUNET_SYSERR;
-    }
-
-    /* clean up */
-    for (i=0;i<off_coin;i++)
-    {
-      if (NULL != sigs[i].rsa_signature)
-        GNUNET_CRYPTO_rsa_signature_free (sigs[i].rsa_signature);
-      if (NULL != pubs[i].rsa_public_key)
-        GNUNET_CRYPTO_rsa_public_key_free (pubs[i].rsa_public_key);
-    }
-  }
-  return ret;
-}
-
-
-/**
- * Function called when we're done processing the
- * HTTP /refresh/link request.
- *
- * @param cls the `struct TALER_MINT_RefreshLinkHandle`
- * @param eh the curl request handle
- */
-static void
-handle_refresh_link_finished (void *cls,
-                              CURL *eh)
-{
-  struct TALER_MINT_RefreshLinkHandle *rlh = cls;
-  long response_code;
-  json_t *json;
-
-  rlh->job = NULL;
-  json = MAC_download_get_result (&rlh->db,
-                                  eh,
-                                  &response_code);
-  switch (response_code)
-  {
-  case 0:
-    break;
-  case MHD_HTTP_OK:
-    if (GNUNET_OK !=
-        parse_refresh_link_ok (rlh,
-                               json))
-    {
-      GNUNET_break_op (0);
-      response_code = 0;
-    }
-    break;
-  case MHD_HTTP_BAD_REQUEST:
-    /* This should never happen, either us or the mint is buggy
-       (or API version conflict); just pass JSON reply to the application */
-    break;
-  case MHD_HTTP_NOT_FOUND:
-    /* Nothing really to verify, mint says this coin was not melted; we
-       should pass the JSON reply to the application */
-    break;
-  case MHD_HTTP_INTERNAL_SERVER_ERROR:
-    /* Server had an internal issue; we should retry, but this API
-       leaves this to the application */
-    break;
-  default:
-    /* unexpected response code */
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u\n",
-                response_code);
-    GNUNET_break (0);
-    response_code = 0;
-    break;
-  }
-  if (NULL != rlh->link_cb)
-    rlh->link_cb (rlh->link_cb_cls,
-                  response_code,
-                  0, NULL, NULL, NULL,
-                  json);
-  json_decref (json);
-  TALER_MINT_refresh_link_cancel (rlh);
-}
-
-
-/**
- * Submit a link request to the mint and get the mint's response.
- *
- * This API is typically not used by anyone, it is more a threat
- * against those trying to receive a funds transfer by abusing the
- * /refresh protocol.
- *
- * @param mint the mint handle; the mint must be ready to operate
- * @param coin_priv private key to request link data for
- * @param link_cb the callback to call with the useful result of the
- *        refresh operation the @a coin_priv was involved in (if any)
- * @param link_cb_cls closure for @a link_cb
- * @return a handle for this request
- */
-struct TALER_MINT_RefreshLinkHandle *
-TALER_MINT_refresh_link (struct TALER_MINT_Handle *mint,
-                         const struct TALER_CoinSpendPrivateKeyP *coin_priv,
-                         TALER_MINT_RefreshLinkCallback link_cb,
-                         void *link_cb_cls)
-{
-  struct TALER_MINT_RefreshLinkHandle *rlh;
-  CURL *eh;
-  struct TALER_MINT_Context *ctx;
-  struct TALER_CoinSpendPublicKeyP coin_pub;
-  char *pub_str;
-  char *arg_str;
-
-  if (GNUNET_YES !=
-      MAH_handle_is_ready (mint))
-  {
-    GNUNET_break (0);
-    return NULL;
-  }
-
-  GNUNET_CRYPTO_eddsa_key_get_public (&coin_priv->eddsa_priv,
-                                      &coin_pub.eddsa_pub);
-  pub_str = GNUNET_STRINGS_data_to_string_alloc (&coin_pub,
-                                                 sizeof (struct TALER_CoinSpendPublicKeyP));
-  GNUNET_asprintf (&arg_str,
-                   "/refresh/link?coin_pub=%s",
-                   pub_str);
-  GNUNET_free (pub_str);
-
-  rlh = GNUNET_new (struct TALER_MINT_RefreshLinkHandle);
-  rlh->mint = mint;
-  rlh->link_cb = link_cb;
-  rlh->link_cb_cls = link_cb_cls;
-  rlh->coin_priv = *coin_priv;
-  rlh->url = MAH_path_to_url (mint, arg_str);
-  GNUNET_free (arg_str);
-
-  eh = curl_easy_init ();
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_URL,
-                                   rlh->url));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEFUNCTION,
-                                   &MAC_download_cb));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEDATA,
-                                   &rlh->db));
-  ctx = MAH_handle_to_context (mint);
-  rlh->job = MAC_job_add (ctx,
-                          eh,
-                          GNUNET_YES,
-                          &handle_refresh_link_finished,
-                          rlh);
-  return rlh;
-}
-
-
-/**
- * Cancel a refresh link request.  This function cannot be used
- * on a request handle if the callback was already invoked.
- *
- * @param rlh the refresh link handle
- */
-void
-TALER_MINT_refresh_link_cancel (struct TALER_MINT_RefreshLinkHandle *rlh)
-{
-  if (NULL != rlh->job)
-  {
-    MAC_job_cancel (rlh->job);
-    rlh->job = NULL;
-  }
-  GNUNET_free_non_null (rlh->db.buf);
-  GNUNET_free (rlh->url);
-  GNUNET_free (rlh);
-}
-
-
-/* end of mint_api_refresh_link.c */
diff --git a/src/mint-lib/mint_api_reserve.c b/src/mint-lib/mint_api_reserve.c
deleted file mode 100644
index 1f8140cff..000000000
--- a/src/mint-lib/mint_api_reserve.c
+++ /dev/null
@@ -1,930 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see
-  <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-lib/mint_api_reserve.c
- * @brief Implementation of the /reserve requests of the mint's HTTP API
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <curl/curl.h>
-#include <jansson.h>
-#include <microhttpd.h> /* just for HTTP status codes */
-#include <gnunet/gnunet_util_lib.h>
-#include "taler_mint_service.h"
-#include "mint_api_json.h"
-#include "mint_api_context.h"
-#include "mint_api_handle.h"
-#include "taler_signatures.h"
-
-
-/* ********************** /reserve/status ********************** */
-
-/**
- * @brief A Withdraw Status Handle
- */
-struct TALER_MINT_ReserveStatusHandle
-{
-
-  /**
-   * The connection to mint this request handle will use
-   */
-  struct TALER_MINT_Handle *mint;
-
-  /**
-   * The url for this request.
-   */
-  char *url;
-
-  /**
-   * Handle for the request.
-   */
-  struct MAC_Job *job;
-
-  /**
-   * Function to call with the result.
-   */
-  TALER_MINT_ReserveStatusResultCallback cb;
-
-  /**
-   * Public key of the reserve we are querying.
-   */
-  struct TALER_ReservePublicKeyP reserve_pub;
-
-  /**
-   * Closure for @a cb.
-   */
-  void *cb_cls;
-
-  /**
-   * Download buffer
-   */
-  struct MAC_DownloadBuffer db;
-
-};
-
-
-/**
- * Parse history given in JSON format and return it in binary
- * format.
- *
- * @param[in] history JSON array with the history
- * @param reserve_pub public key of the reserve to inspect
- * @param currency currency we expect the balance to be in
- * @param[out] balance final balance
- * @param history_length number of entries in @a history
- * @param[out] rhistory array of length @a history_length, set to the
- *             parsed history entries
- * @return #GNUNET_OK if history was valid and @a rhistory and @a balance
- *         were set,
- *         #GNUNET_SYSERR if there was a protocol violation in @a history
- */
-static int
-parse_reserve_history (json_t *history,
-                       const struct TALER_ReservePublicKeyP *reserve_pub,
-                       const char *currency,
-                       struct TALER_Amount *balance,
-                       unsigned int history_length,
-                       struct TALER_MINT_ReserveHistory *rhistory)
-{
-  struct GNUNET_HashCode uuid[history_length];
-  unsigned int uuid_off;
-  struct TALER_Amount total_in;
-  struct TALER_Amount total_out;
-  size_t off;
-
-  TALER_amount_get_zero (currency,
-                         &total_in);
-  TALER_amount_get_zero (currency,
-                         &total_out);
-  uuid_off = 0;
-  for (off=0;off<history_length;off++)
-  {
-    json_t *transaction;
-    struct TALER_Amount amount;
-    const char *type;
-    struct MAJ_Specification hist_spec[] = {
-      MAJ_spec_string ("type", &type),
-      MAJ_spec_amount ("amount",
-                       &amount),
-      /* 'wire' and 'signature' are optional depending on 'type'! */
-      MAJ_spec_end
-    };
-
-    transaction = json_array_get (history,
-                                  off);
-    if (GNUNET_OK !=
-        MAJ_parse_json (transaction,
-                        hist_spec))
-    {
-      GNUNET_break_op (0);
-      return GNUNET_SYSERR;
-    }
-    rhistory[off].amount = amount;
-
-    if (0 == strcasecmp (type,
-                         "DEPOSIT"))
-    {
-      json_t *wire;
-
-      rhistory[off].type = TALER_MINT_RTT_DEPOSIT;
-      if (GNUNET_OK !=
-          TALER_amount_add (&total_in,
-                            &total_in,
-                            &amount))
-      {
-        /* overflow in history already!? inconceivable! Bad mint! */
-        GNUNET_break_op (0);
-        return GNUNET_SYSERR;
-      }
-      wire = json_object_get (transaction,
-                              "wire");
-      /* check 'wire' is a JSON object (no need to check wireformat,
-         but we do at least expect "some" JSON object here) */
-      if ( (NULL == wire) ||
-           (! json_is_object (wire)) )
-      {
-        /* not even a JSON 'wire' specification, not acceptable */
-        GNUNET_break_op (0);
-        return GNUNET_SYSERR;
-      }
-      rhistory[off].details.wire_in_details = wire;
-      /* end type==DEPOSIT */
-    }
-    else if (0 == strcasecmp (type,
-                              "WITHDRAW"))
-    {
-      struct TALER_ReserveSignatureP sig;
-      struct TALER_WithdrawRequestPS withdraw_purpose;
-      struct TALER_Amount amount_from_purpose;
-      struct MAJ_Specification withdraw_spec[] = {
-        MAJ_spec_fixed_auto ("signature",
-                             &sig),
-        MAJ_spec_fixed_auto ("details",
-                             &withdraw_purpose),
-        MAJ_spec_end
-      };
-      unsigned int i;
-
-      rhistory[off].type = TALER_MINT_RTT_WITHDRAWAL;
-      if (GNUNET_OK !=
-          MAJ_parse_json (transaction,
-                          withdraw_spec))
-      {
-        GNUNET_break_op (0);
-        return GNUNET_SYSERR;
-      }
-      /* Check that the signature is a valid withdraw request */
-      if (GNUNET_OK !=
-          GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_RESERVE_WITHDRAW,
-                                      &withdraw_purpose.purpose,
-                                      &sig.eddsa_signature,
-                                      &reserve_pub->eddsa_pub))
-      {
-        GNUNET_break_op (0);
-        MAJ_parse_free (withdraw_spec);
-        return GNUNET_SYSERR;
-      }
-      TALER_amount_ntoh (&amount_from_purpose,
-                         &withdraw_purpose.amount_with_fee);
-      if (0 != TALER_amount_cmp (&amount,
-                                 &amount_from_purpose))
-      {
-        GNUNET_break_op (0);
-        MAJ_parse_free (withdraw_spec);
-        return GNUNET_SYSERR;
-      }
-      rhistory[off].details.out_authorization_sig = json_object_get (transaction,
-                                                                     "signature");
-      /* Check check that the same withdraw transaction
-         isn't listed twice by the mint. We use the
-         "uuid" array to remember the hashes of all
-         purposes, and compare the hashes to find
-         duplicates. */
-      GNUNET_CRYPTO_hash (&withdraw_purpose,
-                          ntohl (withdraw_purpose.purpose.size),
-                          &uuid[uuid_off]);
-      for (i=0;i<uuid_off;i++)
-      {
-        if (0 == memcmp (&uuid[uuid_off],
-                         &uuid[i],
-                         sizeof (struct GNUNET_HashCode)))
-        {
-          GNUNET_break_op (0);
-          MAJ_parse_free (withdraw_spec);
-          return GNUNET_SYSERR;
-        }
-      }
-      uuid_off++;
-
-      if (GNUNET_OK !=
-          TALER_amount_add (&total_out,
-                            &total_out,
-                            &amount))
-      {
-        /* overflow in history already!? inconceivable! Bad mint! */
-        GNUNET_break_op (0);
-        MAJ_parse_free (withdraw_spec);
-        return GNUNET_SYSERR;
-      }
-      /* end type==WITHDRAW */
-    }
-    else
-    {
-      /* unexpected 'type', protocol incompatibility, complain! */
-      GNUNET_break_op (0);
-      return GNUNET_SYSERR;
-    }
-  }
-
-  /* check balance = total_in - total_out < withdraw-amount */
-  if (GNUNET_SYSERR ==
-      TALER_amount_subtract (balance,
-                             &total_in,
-                             &total_out))
-  {
-    /* total_in < total_out, why did the mint ever allow this!? */
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-
-  return GNUNET_OK;
-}
-
-
-/**
- * Function called when we're done processing the
- * HTTP /reserve/status request.
- *
- * @param cls the `struct TALER_MINT_ReserveStatusHandle`
- * @param eh curl handle of the request that finished
- */
-static void
-handle_reserve_status_finished (void *cls,
-                                CURL *eh)
-{
-  struct TALER_MINT_ReserveStatusHandle *wsh = cls;
-  long response_code;
-  json_t *json;
-
-  wsh->job = NULL;
-  json = MAC_download_get_result (&wsh->db,
-                                  eh,
-                                  &response_code);
-  switch (response_code)
-  {
-  case 0:
-    break;
-  case MHD_HTTP_OK:
-    {
-      /* TODO: move into separate function... */
-      json_t *history;
-      unsigned int len;
-      struct TALER_Amount balance;
-      struct TALER_Amount balance_from_history;
-      struct MAJ_Specification spec[] = {
-        MAJ_spec_amount ("balance", &balance),
-        MAJ_spec_end
-      };
-
-      if (GNUNET_OK !=
-          MAJ_parse_json (json,
-                          spec))
-      {
-        GNUNET_break_op (0);
-        response_code = 0;
-        break;
-      }
-      history = json_object_get (json,
-                                 "history");
-      if (NULL == history)
-      {
-        GNUNET_break_op (0);
-        response_code = 0;
-        break;
-      }
-      len = json_array_size (history);
-      {
-        struct TALER_MINT_ReserveHistory rhistory[len];
-
-        if (GNUNET_OK !=
-            parse_reserve_history (history,
-                                   &wsh->reserve_pub,
-                                   balance.currency,
-                                   &balance_from_history,
-                                   len,
-                                   rhistory))
-        {
-          GNUNET_break_op (0);
-          response_code = 0;
-          break;
-        }
-        if (0 !=
-            TALER_amount_cmp (&balance_from_history,
-                              &balance))
-        {
-          /* mint cannot add up balances!? */
-          GNUNET_break_op (0);
-          response_code = 0;
-          break;
-        }
-        wsh->cb (wsh->cb_cls,
-                 response_code,
-                 json,
-                 &balance,
-                 len,
-                 rhistory);
-        wsh->cb = NULL;
-      }
-    }
-    break;
-  case MHD_HTTP_BAD_REQUEST:
-    /* This should never happen, either us or the mint is buggy
-       (or API version conflict); just pass JSON reply to the application */
-    break;
-  case MHD_HTTP_NOT_FOUND:
-    /* Nothing really to verify, this should never
-       happen, we should pass the JSON reply to the application */
-    break;
-  case MHD_HTTP_INTERNAL_SERVER_ERROR:
-    /* Server had an internal issue; we should retry, but this API
-       leaves this to the application */
-    break;
-  default:
-    /* unexpected response code */
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u\n",
-                response_code);
-    GNUNET_break (0);
-    response_code = 0;
-    break;
-  }
-  if (NULL != wsh->cb)
-    wsh->cb (wsh->cb_cls,
-             response_code,
-             json,
-             NULL,
-             0, NULL);
-  json_decref (json);
-  TALER_MINT_reserve_status_cancel (wsh);
-}
-
-
-/**
- * Submit a request to obtain the transaction history of a reserve
- * from the mint.  Note that while we return the full response to the
- * caller for further processing, we do already verify that the
- * response is well-formed (i.e. that signatures included in the
- * response are all valid and add up to the balance).  If the mint's
- * reply is not well-formed, we return an HTTP status code of zero to
- * @a cb.
- *
- * @param mint the mint handle; the mint must be ready to operate
- * @param reserve_pub public key of the reserve to inspect
- * @param cb the callback to call when a reply for this request is available
- * @param cb_cls closure for the above callback
- * @return a handle for this request; NULL if the inputs are invalid (i.e.
- *         signatures fail to verify).  In this case, the callback is not called.
- */
-struct TALER_MINT_ReserveStatusHandle *
-TALER_MINT_reserve_status (struct TALER_MINT_Handle *mint,
-                           const struct TALER_ReservePublicKeyP *reserve_pub,
-                           TALER_MINT_ReserveStatusResultCallback cb,
-                           void *cb_cls)
-{
-  struct TALER_MINT_ReserveStatusHandle *wsh;
-  struct TALER_MINT_Context *ctx;
-  CURL *eh;
-  char *pub_str;
-  char *arg_str;
-
-  if (GNUNET_YES !=
-      MAH_handle_is_ready (mint))
-  {
-    GNUNET_break (0);
-    return NULL;
-  }
-  pub_str = GNUNET_STRINGS_data_to_string_alloc (reserve_pub,
-                                                 sizeof (struct TALER_ReservePublicKeyP));
-  GNUNET_asprintf (&arg_str,
-                   "/reserve/status?reserve_pub=%s",
-                   pub_str);
-  GNUNET_free (pub_str);
-  wsh = GNUNET_new (struct TALER_MINT_ReserveStatusHandle);
-  wsh->mint = mint;
-  wsh->cb = cb;
-  wsh->cb_cls = cb_cls;
-  wsh->reserve_pub = *reserve_pub;
-  wsh->url = MAH_path_to_url (mint,
-                              arg_str);
-  GNUNET_free (arg_str);
-
-  eh = curl_easy_init ();
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_URL,
-                                   wsh->url));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEFUNCTION,
-                                   &MAC_download_cb));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEDATA,
-                                   &wsh->db));
-  ctx = MAH_handle_to_context (mint);
-  wsh->job = MAC_job_add (ctx,
-                          eh,
-                          GNUNET_NO,
-                          &handle_reserve_status_finished,
-                          wsh);
-  return wsh;
-}
-
-
-/**
- * Cancel a withdraw status request.  This function cannot be used
- * on a request handle if a response is already served for it.
- *
- * @param wsh the withdraw status request handle
- */
-void
-TALER_MINT_reserve_status_cancel (struct TALER_MINT_ReserveStatusHandle *wsh)
-{
-  if (NULL != wsh->job)
-  {
-    MAC_job_cancel (wsh->job);
-    wsh->job = NULL;
-  }
-  GNUNET_free_non_null (wsh->db.buf);
-  GNUNET_free (wsh->url);
-  GNUNET_free (wsh);
-}
-
-
-/* ********************** /reserve/withdraw ********************** */
-
-/**
- * @brief A Withdraw Sign Handle
- */
-struct TALER_MINT_ReserveWithdrawHandle
-{
-
-  /**
-   * The connection to mint this request handle will use
-   */
-  struct TALER_MINT_Handle *mint;
-
-  /**
-   * The url for this request.
-   */
-  char *url;
-
-  /**
-   * JSON encoding of the request to POST.
-   */
-  char *json_enc;
-
-  /**
-   * Handle for the request.
-   */
-  struct MAC_Job *job;
-
-  /**
-   * Function to call with the result.
-   */
-  TALER_MINT_ReserveWithdrawResultCallback cb;
-
-  /**
-   * Key used to blind the value.
-   */
-  const struct TALER_DenominationBlindingKey *blinding_key;
-
-  /**
-   * Denomination key we are withdrawing.
-   */
-  const struct TALER_MINT_DenomPublicKey *pk;
-
-  /**
-   * Closure for @a cb.
-   */
-  void *cb_cls;
-
-  /**
-   * Download buffer
-   */
-  struct MAC_DownloadBuffer db;
-
-  /**
-   * Hash of the public key of the coin we are signing.
-   */
-  struct GNUNET_HashCode c_hash;
-
-  /**
-   * Public key of the reserve we are withdrawing from.
-   */
-  struct TALER_ReservePublicKeyP reserve_pub;
-
-};
-
-
-/**
- * We got a 200 OK response for the /reserve/withdraw operation.
- * Extract the coin's signature and return it to the caller.
- * The signature we get from the mint is for the blinded value.
- * Thus, we first must unblind it and then should verify its
- * validity against our coin's hash.
- *
- * If everything checks out, we return the unblinded signature
- * to the application via the callback.
- *
- * @param wsh operation handle
- * @param json reply from the mint
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on errors
- */
-static int
-reserve_withdraw_ok (struct TALER_MINT_ReserveWithdrawHandle *wsh,
-                  json_t *json)
-{
-  struct GNUNET_CRYPTO_rsa_Signature *blind_sig;
-  struct GNUNET_CRYPTO_rsa_Signature *sig;
-  struct TALER_DenominationSignature dsig;
-  struct MAJ_Specification spec[] = {
-    MAJ_spec_rsa_signature ("ev_sig", &blind_sig),
-    MAJ_spec_end
-  };
-
-  if (GNUNET_OK !=
-      MAJ_parse_json (json,
-                      spec))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  sig = GNUNET_CRYPTO_rsa_unblind (blind_sig,
-                                   wsh->blinding_key->rsa_blinding_key,
-                                   wsh->pk->key.rsa_public_key);
-  GNUNET_CRYPTO_rsa_signature_free (blind_sig);
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_rsa_verify (&wsh->c_hash,
-                                sig,
-                                wsh->pk->key.rsa_public_key))
-  {
-    GNUNET_break_op (0);
-    GNUNET_CRYPTO_rsa_signature_free (sig);
-    return GNUNET_SYSERR;
-  }
-  /* signature is valid, return it to the application */
-  dsig.rsa_signature = sig;
-  wsh->cb (wsh->cb_cls,
-           MHD_HTTP_OK,
-           &dsig,
-           json);
-  /* make sure callback isn't called again after return */
-  wsh->cb = NULL;
-  GNUNET_CRYPTO_rsa_signature_free (sig);
-  return GNUNET_OK;
-}
-
-
-/**
- * We got a 402 PAYMENT REQUIRED response for the /reserve/withdraw operation.
- * Check the signatures on the withdraw transactions in the provided
- * history and that the balances add up.  We don't do anything directly
- * with the information, as the JSON will be returned to the application.
- * However, our job is ensuring that the mint followed the protocol, and
- * this in particular means checking all of the signatures in the history.
- *
- * @param wsh operation handle
- * @param json reply from the mint
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on errors
- */
-static int
-reserve_withdraw_payment_required (struct TALER_MINT_ReserveWithdrawHandle *wsh,
-                                   json_t *json)
-{
-  struct TALER_Amount balance;
-  struct TALER_Amount balance_from_history;
-  struct TALER_Amount requested_amount;
-  json_t *history;
-  size_t len;
-  struct MAJ_Specification spec[] = {
-    MAJ_spec_amount ("balance", &balance),
-    MAJ_spec_end
-  };
-
-  if (GNUNET_OK !=
-      MAJ_parse_json (json,
-                      spec))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  history = json_object_get (json,
-                             "history");
-  if (NULL == history)
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-
-  /* go over transaction history and compute
-     total incoming and outgoing amounts */
-  len = json_array_size (history);
-  {
-    struct TALER_MINT_ReserveHistory rhistory[len];
-
-    if (GNUNET_OK !=
-        parse_reserve_history (history,
-                               &wsh->reserve_pub,
-                               balance.currency,
-                               &balance_from_history,
-                               len,
-                               rhistory))
-    {
-      GNUNET_break_op (0);
-      return GNUNET_SYSERR;
-    }
-  }
-
-  if (0 !=
-      TALER_amount_cmp (&balance_from_history,
-                        &balance))
-  {
-    /* mint cannot add up balances!? */
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  /* Compute how much we expected to charge to the reserve */
-  if (GNUNET_OK !=
-      TALER_amount_add (&requested_amount,
-                        &wsh->pk->value,
-                        &wsh->pk->fee_withdraw))
-  {
-    /* Overflow here? Very strange, our CPU must be fried... */
-    GNUNET_break (0);
-    return GNUNET_SYSERR;
-  }
-  /* Check that funds were really insufficient */
-  if (0 >= TALER_amount_cmp (&requested_amount,
-                             &balance))
-  {
-    /* Requested amount is smaller or equal to reported balance,
-       so this should not have failed. */
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Function called when we're done processing the
- * HTTP /reserve/withdraw request.
- *
- * @param cls the `struct TALER_MINT_ReserveWithdrawHandle`
- * @param eh curl handle of the request that finished
- */
-static void
-handle_reserve_withdraw_finished (void *cls,
-                                  CURL *eh)
-{
-  struct TALER_MINT_ReserveWithdrawHandle *wsh = cls;
-  long response_code;
-  json_t *json;
-
-  wsh->job = NULL;
-  json = MAC_download_get_result (&wsh->db,
-                                  eh,
-                                  &response_code);
-  switch (response_code)
-  {
-  case 0:
-    break;
-  case MHD_HTTP_OK:
-    if (GNUNET_OK !=
-        reserve_withdraw_ok (wsh,
-                          json))
-    {
-      GNUNET_break_op (0);
-      response_code = 0;
-    }
-    break;
-  case MHD_HTTP_BAD_REQUEST:
-    /* This should never happen, either us or the mint is buggy
-       (or API version conflict); just pass JSON reply to the application */
-    break;
-  case MHD_HTTP_PAYMENT_REQUIRED:
-    /* The mint says that the reserve has insufficient funds;
-       check the signatures in the history... */
-    if (GNUNET_OK !=
-        reserve_withdraw_payment_required (wsh,
-                                        json))
-    {
-      GNUNET_break_op (0);
-      response_code = 0;
-    }
-    break;
-  case MHD_HTTP_UNAUTHORIZED:
-    GNUNET_break (0);
-    /* Nothing really to verify, mint says one of the signatures is
-       invalid; as we checked them, this should never happen, we
-       should pass the JSON reply to the application */
-    break;
-  case MHD_HTTP_NOT_FOUND:
-    /* Nothing really to verify, the mint basically just says
-       that it doesn't know this reserve.  Can happen if we
-       query before the wire transfer went through.
-       We should simply pass the JSON reply to the application. */
-    break;
-  case MHD_HTTP_INTERNAL_SERVER_ERROR:
-    /* Server had an internal issue; we should retry, but this API
-       leaves this to the application */
-    break;
-  default:
-    /* unexpected response code */
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u\n",
-                response_code);
-    GNUNET_break (0);
-    response_code = 0;
-    break;
-  }
-  if (NULL != wsh->cb)
-    wsh->cb (wsh->cb_cls,
-             response_code,
-             NULL,
-             json);
-  json_decref (json);
-  TALER_MINT_reserve_withdraw_cancel (wsh);
-}
-
-
-/**
- * Withdraw a coin from the mint using a /reserve/withdraw request.  Note
- * that to ensure that no money is lost in case of hardware failures,
- * the caller must have committed (most of) the arguments to disk
- * before calling, and be ready to repeat the request with the same
- * arguments in case of failures.
- *
- * @param mint the mint handle; the mint must be ready to operate
- * @param pk kind of coin to create
- * @param reserve_priv private key of the reserve to withdraw from
- * @param coin_priv where to store the coin's private key,
- *        caller must have committed this value to disk before the call (with @a pk)
- * @param blinding_key where to store the coin's blinding key
- *        caller must have committed this value to disk before the call (with @a pk)
- * @param res_cb the callback to call when the final result for this request is available
- * @param res_cb_cls closure for the above callback
- * @return #GNUNET_OK on success, #GNUNET_SYSERR
- *         if the inputs are invalid (i.e. denomination key not with this mint).
- *         In this case, the callback is not called.
- */
-struct TALER_MINT_ReserveWithdrawHandle *
-TALER_MINT_reserve_withdraw (struct TALER_MINT_Handle *mint,
-                             const struct TALER_MINT_DenomPublicKey *pk,
-                             const struct TALER_ReservePrivateKeyP *reserve_priv,
-                             const struct TALER_CoinSpendPrivateKeyP *coin_priv,
-                             const struct TALER_DenominationBlindingKey *blinding_key,
-                             TALER_MINT_ReserveWithdrawResultCallback res_cb,
-                             void *res_cb_cls)
-{
-  struct TALER_MINT_ReserveWithdrawHandle *wsh;
-  struct TALER_WithdrawRequestPS req;
-  struct TALER_ReserveSignatureP reserve_sig;
-  struct TALER_CoinSpendPublicKeyP coin_pub;
-  struct TALER_MINT_Context *ctx;
-  struct TALER_Amount amount_with_fee;
-  char *coin_ev;
-  size_t coin_ev_size;
-  json_t *withdraw_obj;
-  CURL *eh;
-
-  wsh = GNUNET_new (struct TALER_MINT_ReserveWithdrawHandle);
-  wsh->mint = mint;
-  wsh->cb = res_cb;
-  wsh->cb_cls = res_cb_cls;
-  wsh->pk = pk;
-
-  GNUNET_CRYPTO_eddsa_key_get_public (&coin_priv->eddsa_priv,
-                                      &coin_pub.eddsa_pub);
-  GNUNET_CRYPTO_hash (&coin_pub.eddsa_pub,
-                      sizeof (struct GNUNET_CRYPTO_EcdsaPublicKey),
-                      &wsh->c_hash);
-  coin_ev_size = GNUNET_CRYPTO_rsa_blind (&wsh->c_hash,
-                                          blinding_key->rsa_blinding_key,
-                                          pk->key.rsa_public_key,
-                                          &coin_ev);
-  GNUNET_CRYPTO_eddsa_key_get_public (&reserve_priv->eddsa_priv,
-                                      &wsh->reserve_pub.eddsa_pub);
-  req.purpose.size = htonl (sizeof (struct TALER_WithdrawRequestPS));
-  req.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_RESERVE_WITHDRAW);
-  req.reserve_pub = wsh->reserve_pub;
-  if (GNUNET_OK !=
-      TALER_amount_add (&amount_with_fee,
-                        &pk->fee_withdraw,
-                        &pk->value))
-  {
-    /* mint gave us denomination keys that overflow like this!? */
-    GNUNET_break_op (0);
-    GNUNET_free (coin_ev);
-    GNUNET_free (wsh);
-    return NULL;
-  }
-  TALER_amount_hton (&req.amount_with_fee,
-                     &amount_with_fee);
-  TALER_amount_hton (&req.withdraw_fee,
-                     &pk->fee_withdraw);
-  GNUNET_CRYPTO_rsa_public_key_hash (pk->key.rsa_public_key,
-                                     &req.h_denomination_pub);
-  GNUNET_CRYPTO_hash (coin_ev,
-                      coin_ev_size,
-                      &req.h_coin_envelope);
-  GNUNET_assert (GNUNET_OK ==
-                 GNUNET_CRYPTO_eddsa_sign (&reserve_priv->eddsa_priv,
-                                           &req.purpose,
-                                           &reserve_sig.eddsa_signature));
-  withdraw_obj = json_pack ("{s:o, s:o," /* denom_pub and coin_ev */
-                            " s:o, s:o}",/* reserve_pub and reserve_sig */
-                            "denom_pub", TALER_json_from_rsa_public_key (pk->key.rsa_public_key),
-                            "coin_ev", TALER_json_from_data (coin_ev,
-                                                             coin_ev_size),
-                            "reserve_pub", TALER_json_from_data (&wsh->reserve_pub,
-                                                                 sizeof (struct TALER_ReservePublicKeyP)),
-                            "reserve_sig", TALER_json_from_data (&reserve_sig,
-                                                                 sizeof (reserve_sig)));
-  GNUNET_free (coin_ev);
-
-  wsh->blinding_key = blinding_key;
-  wsh->url = MAH_path_to_url (mint, "/reserve/withdraw");
-
-  eh = curl_easy_init ();
-  GNUNET_assert (NULL != (wsh->json_enc =
-                          json_dumps (withdraw_obj,
-                                      JSON_COMPACT)));
-  json_decref (withdraw_obj);
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_URL,
-                                   wsh->url));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_POSTFIELDS,
-                                   wsh->json_enc));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_POSTFIELDSIZE,
-                                   strlen (wsh->json_enc)));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEFUNCTION,
-                                   &MAC_download_cb));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEDATA,
-                                   &wsh->db));
-  ctx = MAH_handle_to_context (mint);
-  wsh->job = MAC_job_add (ctx,
-                          eh,
-                          GNUNET_YES,
-                          &handle_reserve_withdraw_finished,
-                          wsh);
-  return wsh;
-}
-
-
-/**
- * Cancel a withdraw status request.  This function cannot be used
- * on a request handle if a response is already served for it.
- *
- * @param sign the withdraw sign request handle
- */
-void
-TALER_MINT_reserve_withdraw_cancel (struct TALER_MINT_ReserveWithdrawHandle *sign)
-{
-  if (NULL != sign->job)
-  {
-    MAC_job_cancel (sign->job);
-    sign->job = NULL;
-  }
-  GNUNET_free_non_null (sign->db.buf);
-  GNUNET_free (sign->url);
-  GNUNET_free (sign->json_enc);
-  GNUNET_free (sign);
-}
-
-
-/* end of mint_api_reserve.c */
diff --git a/src/mint-lib/mint_api_wire.c b/src/mint-lib/mint_api_wire.c
deleted file mode 100644
index 0947354ad..000000000
--- a/src/mint-lib/mint_api_wire.c
+++ /dev/null
@@ -1,620 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see
-  <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-lib/mint_api_wire.c
- * @brief Implementation of the /wire request of the mint's HTTP API
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <curl/curl.h>
-#include <jansson.h>
-#include <microhttpd.h> /* just for HTTP status codes */
-#include <gnunet/gnunet_util_lib.h>
-#include "taler_mint_service.h"
-#include "mint_api_common.h"
-#include "mint_api_json.h"
-#include "mint_api_context.h"
-#include "mint_api_handle.h"
-#include "taler_signatures.h"
-
-
-/**
- * @brief A Wire Handle
- */
-struct TALER_MINT_WireHandle
-{
-
-  /**
-   * The connection to mint this request handle will use
-   */
-  struct TALER_MINT_Handle *mint;
-
-  /**
-   * The url for this request.
-   */
-  char *url;
-
-  /**
-   * Handle for the request.
-   */
-  struct MAC_Job *job;
-
-  /**
-   * Function to call with the result.
-   */
-  TALER_MINT_WireResultCallback cb;
-
-  /**
-   * Closure for @a cb.
-   */
-  void *cb_cls;
-
-  /**
-   * Download buffer
-   */
-  struct MAC_DownloadBuffer db;
-
-  /**
-   * Set to the "methods" JSON array returned by the
-   * /wire request.
-   */
-  json_t *methods;
-
-  /**
-   * Current iteration offset in the @e methods array.
-   */
-  unsigned int methods_off;
-
-};
-
-
-/**
- * Verify that the signature on the "200 OK" response
- * for /wire/sepa from the mint is valid.
- *
- * @param wh wire handle
- * @param json json reply with the signature
- * @return #GNUNET_SYSERR if @a json is invalid,
- *         #GNUNET_NO if the method is unknown,
- *         #GNUNET_OK if the json is valid
- */
-static int
-verify_wire_sepa_signature_ok (const struct TALER_MINT_WireHandle *wh,
-                               json_t *json)
-{
-  struct TALER_MasterSignatureP mint_sig;
-  struct TALER_MasterWireSepaDetailsPS mp;
-  const char *receiver_name;
-  const char *iban;
-  const char *bic;
-  const struct TALER_MINT_Keys *key_state;
-  struct GNUNET_HashContext *hc;
-  struct MAJ_Specification spec[] = {
-    MAJ_spec_fixed_auto ("sig", &mint_sig),
-    MAJ_spec_string ("receiver_name", &receiver_name),
-    MAJ_spec_string ("iban", &iban),
-    MAJ_spec_string ("bic", &bic),
-    MAJ_spec_end
-  };
-
-  if (GNUNET_OK !=
-      MAJ_parse_json (json,
-                      spec))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-
-  key_state = TALER_MINT_get_keys (wh->mint);
-  mp.purpose.purpose = htonl (TALER_SIGNATURE_MASTER_SEPA_DETAILS);
-  mp.purpose.size = htonl (sizeof (struct TALER_MasterWireSepaDetailsPS));
-  hc = GNUNET_CRYPTO_hash_context_start ();
-  GNUNET_CRYPTO_hash_context_read (hc,
-                                   receiver_name,
-                                   strlen (receiver_name) + 1);
-  GNUNET_CRYPTO_hash_context_read (hc,
-                                   iban,
-                                   strlen (iban) + 1);
-  GNUNET_CRYPTO_hash_context_read (hc,
-                                   bic,
-                                   strlen (bic) + 1);
-  GNUNET_CRYPTO_hash_context_finish (hc,
-                                     &mp.h_sepa_details);
-
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MASTER_SEPA_DETAILS,
-                                  &mp.purpose,
-                                  &mint_sig.eddsa_signature,
-                                  &key_state->master_pub.eddsa_pub))
-  {
-    GNUNET_break_op (0);
-    MAJ_parse_free (spec);
-    return GNUNET_SYSERR;
-  }
-  MAJ_parse_free (spec);
-  return GNUNET_OK;
-}
-
-
-/**
- * Verify that the signature on the "200 OK" response
- * for /wire/METHOD from the mint is valid.
- *
- * @param wh wire handle with key material
- * @param method method to verify the reply for
- * @param json json reply with the signature
- * @return #GNUNET_SYSERR if @a json is invalid,
- *         #GNUNET_NO if the method is unknown,
- *         #GNUNET_OK if the json is valid
- */
-static int
-verify_wire_method_signature_ok (const struct TALER_MINT_WireHandle *wh,
-                                 const char *method,
-                                 json_t *json)
-{
-  struct
-  {
-    /**
-     * Name fo the method.
-     */
-    const char *method;
-
-    /**
-     * Handler to invoke to verify signature.
-     *
-     * @param wh wire handle with key material
-     * @param json json reply with signature to verify
-     */
-    int (*handler)(const struct TALER_MINT_WireHandle *wh,
-                   json_t *json);
-  } handlers[] = {
-    { "sepa", &verify_wire_sepa_signature_ok },
-    { NULL, NULL }
-  };
-  unsigned int i;
-
-  for (i=0;NULL != handlers[i].method; i++)
-    if (0 == strcasecmp (handlers[i].method,
-                         method))
-      return handlers[i].handler (wh,
-                                  json);
-  GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-              "Wire transfer method `%s' not supported\n",
-              method);
-  return GNUNET_NO;
-}
-
-
-/**
- * Perform the next /wire/method request or signal
- * the end of the iteration.
- *
- * @param wh the wire handle
- * @return a handle for this request
- */
-static void
-request_wire_method (struct TALER_MINT_WireHandle *wh);
-
-
-/**
- * Function called when we're done processing the
- * HTTP /wire/METHOD request.
- *
- * @param cls the `struct TALER_MINT_WireHandle`
- * @param eh the curl request handle
- */
-static void
-handle_wire_method_finished (void *cls,
-                             CURL *eh)
-{
-  struct TALER_MINT_WireHandle *wh = cls;
-  long response_code;
-  json_t *json;
-
-  wh->job = NULL;
-  json = MAC_download_get_result (&wh->db,
-                                  eh,
-                                  &response_code);
-  switch (response_code)
-  {
-  case 0:
-    break;
-  case MHD_HTTP_OK:
-    {
-      const char *method;
-
-      method = json_string_value (json_array_get (wh->methods,
-                                                  wh->methods_off - 1));
-      if (GNUNET_OK !=
-          verify_wire_method_signature_ok (wh,
-                                           method,
-                                           json))
-      {
-        GNUNET_break_op (0);
-        response_code = 0;
-        break;
-      }
-      break;
-    }
-  case MHD_HTTP_FOUND:
-    /* /wire/test returns a 302 redirect, we should just give
-       this information back to the callback below */
-    break;
-  case MHD_HTTP_BAD_REQUEST:
-    /* This should never happen, either us or the mint is buggy
-       (or API version conflict); just pass JSON reply to the application */
-    break;
-  case MHD_HTTP_NOT_FOUND:
-    /* Nothing really to verify, this should never
-       happen, we should pass the JSON reply to the application */
-    break;
-  case MHD_HTTP_INTERNAL_SERVER_ERROR:
-    /* Server had an internal issue; we should retry, but this API
-       leaves this to the application */
-    break;
-  default:
-    /* unexpected response code */
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u\n",
-                response_code);
-    GNUNET_break (0);
-    response_code = 0;
-    break;
-  }
-  if (0 == response_code)
-  {
-    /* signal end of iteration */
-    wh->cb (wh->cb_cls,
-            0,
-            NULL,
-            NULL);
-    json_decref (json);
-    TALER_MINT_wire_cancel (wh);
-    return;
-  }
-  /* pass on successful reply */
-  wh->cb (wh->cb_cls,
-          response_code,
-          json_string_value (json_array_get (wh->methods,
-                                             wh->methods_off-1)),
-          json);
-  /* trigger request for the next /wire/method */
-  request_wire_method (wh);
-}
-
-
-/**
- * Perform the next /wire/method request or signal
- * the end of the iteration.
- *
- * @param wh the wire handle
- * @return a handle for this request
- */
-static void
-request_wire_method (struct TALER_MINT_WireHandle *wh)
-{
-  struct TALER_MINT_Context *ctx;
-  CURL *eh;
-  char *path;
-
-  if (json_array_size (wh->methods) <= wh->methods_off)
-  {
-    /* we are done, signal end of iteration */
-    wh->cb (wh->cb_cls,
-            0,
-            NULL,
-            NULL);
-    TALER_MINT_wire_cancel (wh);
-    return;
-  }
-  GNUNET_free_non_null (wh->db.buf);
-  wh->db.buf = NULL;
-  wh->db.buf_size = 0;
-  wh->db.eno = 0;
-  GNUNET_free_non_null (wh->url);
-  GNUNET_asprintf (&path,
-                   "/wire/%s",
-                   json_string_value (json_array_get (wh->methods,
-                                                      wh->methods_off++)));
-  wh->url = MAH_path_to_url (wh->mint,
-                             path);
-  GNUNET_free (path);
-
-  eh = curl_easy_init ();
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_URL,
-                                   wh->url));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEFUNCTION,
-                                   &MAC_download_cb));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEDATA,
-                                   &wh->db));
-  /* The default is 'disabled', but let's be sure */
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_FOLLOWLOCATION,
-                                   (long) 0));
-  ctx = MAH_handle_to_context (wh->mint);
-  wh->job = MAC_job_add (ctx,
-                         eh,
-                         GNUNET_YES,
-                         &handle_wire_method_finished,
-                         wh);
-  TALER_MINT_perform (ctx);
-}
-
-
-/**
- * Verify that the signature on the "200 OK" response
- * for /wire from the mint is valid.
- *
- * @param wh wire handle
- * @param json json reply with the signature
- * @return NULL if @a json is invalid, otherwise the
- *         "methods" array (with an RC of 1)
- */
-static json_t *
-verify_wire_signature_ok (const struct TALER_MINT_WireHandle *wh,
-                          json_t *json)
-{
-  struct TALER_MintSignatureP mint_sig;
-  struct TALER_MintPublicKeyP mint_pub;
-  struct TALER_MintWireSupportMethodsPS mp;
-  json_t *methods;
-  const struct TALER_MINT_Keys *key_state;
-  struct GNUNET_HashContext *hc;
-  struct MAJ_Specification spec[] = {
-    MAJ_spec_fixed_auto ("sig", &mint_sig),
-    MAJ_spec_fixed_auto ("pub", &mint_pub),
-    MAJ_spec_json ("methods", &methods),
-    MAJ_spec_end
-  };
-  unsigned int i;
-
-  if (GNUNET_OK !=
-      MAJ_parse_json (json,
-                      spec))
-  {
-    GNUNET_break_op (0);
-    return NULL;
-  }
-  if (! json_is_array (methods))
-  {
-    GNUNET_break_op (0);
-    MAJ_parse_free (spec);
-    return NULL;
-  }
-
-  key_state = TALER_MINT_get_keys (wh->mint);
-  if (GNUNET_OK !=
-      TALER_MINT_test_signing_key (key_state,
-                                   &mint_pub))
-  {
-    GNUNET_break_op (0);
-    return NULL;
-  }
-  hc = GNUNET_CRYPTO_hash_context_start ();
-  for (i=0;i<json_array_size (methods);i++)
-  {
-    const json_t *element = json_array_get (methods, i);
-    const char *method;
-
-    if (! json_is_string (element))
-    {
-      GNUNET_CRYPTO_hash_context_abort (hc);
-      GNUNET_break_op (0);
-      MAJ_parse_free (spec);
-      return NULL;
-    }
-    method = json_string_value (element);
-    GNUNET_CRYPTO_hash_context_read (hc,
-                                     method,
-                                     strlen (method) + 1);
-  }
-  mp.purpose.purpose = htonl (TALER_SIGNATURE_MINT_WIRE_TYPES);
-  mp.purpose.size = htonl (sizeof (struct TALER_MintWireSupportMethodsPS));
-  GNUNET_CRYPTO_hash_context_finish (hc,
-                                     &mp.h_wire_types);
-
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MINT_WIRE_TYPES,
-                                  &mp.purpose,
-                                  &mint_sig.eddsa_signature,
-                                  &mint_pub.eddsa_pub))
-  {
-    GNUNET_break_op (0);
-    MAJ_parse_free (spec);
-    return NULL;
-  }
-  return methods;
-}
-
-
-/**
- * Function called when we're done processing the
- * HTTP /wire request.
- *
- * @param cls the `struct TALER_MINT_WireHandle`
- * @param eh the curl request handle
- */
-static void
-handle_wire_finished (void *cls,
-                      CURL *eh)
-{
-  struct TALER_MINT_WireHandle *wh = cls;
-  long response_code;
-  json_t *json;
-
-  wh->job = NULL;
-  json = MAC_download_get_result (&wh->db,
-                                  eh,
-                                  &response_code);
-  switch (response_code)
-  {
-  case 0:
-    break;
-  case MHD_HTTP_OK:
-    {
-      json_t *methods;
-
-      if (NULL ==
-          (methods = verify_wire_signature_ok (wh,
-                                               json)))
-      {
-        GNUNET_break_op (0);
-        response_code = 0;
-        break;
-      }
-      wh->methods = methods;
-      request_wire_method (wh);
-      return;
-    }
-    break;
-  case MHD_HTTP_BAD_REQUEST:
-    /* This should never happen, either us or the mint is buggy
-       (or API version conflict); just pass JSON reply to the application */
-    break;
-  case MHD_HTTP_NOT_FOUND:
-    /* Nothing really to verify, this should never
-       happen, we should pass the JSON reply to the application */
-    break;
-  case MHD_HTTP_INTERNAL_SERVER_ERROR:
-    /* Server had an internal issue; we should retry, but this API
-       leaves this to the application */
-    break;
-  default:
-    /* unexpected response code */
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u\n",
-                response_code);
-    GNUNET_break (0);
-    response_code = 0;
-    break;
-  }
-  if (0 != response_code)
-  {
-    /* pass on successful reply */
-    wh->cb (wh->cb_cls,
-            response_code,
-            NULL,
-            json);
-  }
-  /* signal end of iteration */
-  wh->cb (wh->cb_cls,
-          0,
-          NULL,
-          NULL);
-  if (NULL != json)
-    json_decref (json);
-  TALER_MINT_wire_cancel (wh);
-}
-
-
-/**
- * Obtain information about a mint's wire instructions.
- * A mint may provide wire instructions for creating
- * a reserve.  The wire instructions also indicate
- * which wire formats merchants may use with the mint.
- * This API is typically used by a wallet for wiring
- * funds, and possibly by a merchant to determine
- * supported wire formats.
- *
- * Note that while we return the (main) response verbatim to the
- * caller for further processing, we do already verify that the
- * response is well-formed (i.e. that signatures included in the
- * response are all valid).  If the mint's reply is not well-formed,
- * we return an HTTP status code of zero to @a cb.
- *
- * @param mint the mint handle; the mint must be ready to operate
- * @param wire_cb the callback to call when a reply for this request is available
- * @param wire_cb_cls closure for the above callback
- * @return a handle for this request
- */
-struct TALER_MINT_WireHandle *
-TALER_MINT_wire (struct TALER_MINT_Handle *mint,
-                 TALER_MINT_WireResultCallback wire_cb,
-                 void *wire_cb_cls)
-{
-  struct TALER_MINT_WireHandle *wh;
-  struct TALER_MINT_Context *ctx;
-  CURL *eh;
-
-  if (GNUNET_YES !=
-      MAH_handle_is_ready (mint))
-  {
-    GNUNET_break (0);
-    return NULL;
-  }
-  wh = GNUNET_new (struct TALER_MINT_WireHandle);
-  wh->mint = mint;
-  wh->cb = wire_cb;
-  wh->cb_cls = wire_cb_cls;
-  wh->url = MAH_path_to_url (mint, "/wire");
-
-  eh = curl_easy_init ();
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_URL,
-                                   wh->url));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEFUNCTION,
-                                   &MAC_download_cb));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEDATA,
-                                   &wh->db));
-  ctx = MAH_handle_to_context (mint);
-  wh->job = MAC_job_add (ctx,
-                         eh,
-                         GNUNET_YES,
-                         &handle_wire_finished,
-                         wh);
-  return wh;
-}
-
-
-/**
- * Cancel a wire information request.  This function cannot be used
- * on a request handle if a response is already served for it.
- *
- * @param wh the wire information request handle
- */
-void
-TALER_MINT_wire_cancel (struct TALER_MINT_WireHandle *wh)
-{
-  if (NULL != wh->job)
-  {
-    MAC_job_cancel (wh->job);
-    wh->job = NULL;
-  }
-  if (NULL != wh->methods)
-  {
-    json_decref (wh->methods);
-    wh->methods = NULL;
-  }
-  GNUNET_free_non_null (wh->db.buf);
-  GNUNET_free (wh->url);
-  GNUNET_free (wh);
-}
-
-
-/* end of mint_api_wire.c */
diff --git a/src/mint-lib/mint_api_wire_deposits.c b/src/mint-lib/mint_api_wire_deposits.c
deleted file mode 100644
index f71c5b696..000000000
--- a/src/mint-lib/mint_api_wire_deposits.c
+++ /dev/null
@@ -1,284 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see
-  <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-lib/mint_api_wire_deposits.c
- * @brief Implementation of the /wire/deposits request of the mint's HTTP API
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <curl/curl.h>
-#include <jansson.h>
-#include <microhttpd.h> /* just for HTTP status codes */
-#include <gnunet/gnunet_util_lib.h>
-#include "taler_mint_service.h"
-#include "mint_api_common.h"
-#include "mint_api_json.h"
-#include "mint_api_context.h"
-#include "mint_api_handle.h"
-#include "taler_signatures.h"
-
-
-/**
- * @brief A /wire/deposits Handle
- */
-struct TALER_MINT_WireDepositsHandle
-{
-
-  /**
-   * The connection to mint this request handle will use
-   */
-  struct TALER_MINT_Handle *mint;
-
-  /**
-   * The url for this request.
-   */
-  char *url;
-
-  /**
-   * Handle for the request.
-   */
-  struct MAC_Job *job;
-
-  /**
-   * Function to call with the result.
-   */
-  TALER_MINT_WireDepositsCallback cb;
-
-  /**
-   * Closure for @a cb.
-   */
-  void *cb_cls;
-
-  /**
-   * Download buffer
-   */
-  struct MAC_DownloadBuffer db;
-
-};
-
-
-/**
- * Function called when we're done processing the
- * HTTP /wire/deposits request.
- *
- * @param cls the `struct TALER_MINT_WireDepositsHandle`
- * @param eh the curl request handle
- */
-static void
-handle_wire_deposits_finished (void *cls,
-                               CURL *eh)
-{
-  struct TALER_MINT_WireDepositsHandle *wdh = cls;
-  long response_code;
-  json_t *json;
-
-  wdh->job = NULL;
-  json = MAC_download_get_result (&wdh->db,
-                                  eh,
-                                  &response_code);
-  switch (response_code)
-  {
-  case 0:
-    break;
-  case MHD_HTTP_OK:
-    {
-      json_t *details_j;
-      struct GNUNET_HashCode h_wire;
-      struct TALER_Amount total_amount;
-      struct TALER_MerchantPublicKeyP merchant_pub;
-      unsigned int num_details;
-      struct MAJ_Specification spec[] = {
-        MAJ_spec_fixed_auto ("H_wire", &h_wire),
-        MAJ_spec_fixed_auto ("merchant_pub", &merchant_pub),
-        MAJ_spec_amount ("total_amount", &total_amount),
-        MAJ_spec_json ("details", &details_j),
-        MAJ_spec_end
-      };
-
-      if (GNUNET_OK !=
-          MAJ_parse_json (json,
-                          spec))
-      {
-        GNUNET_break_op (0);
-        response_code = 0;
-        break;
-      }
-      num_details = json_array_size (details_j);
-      {
-        struct TALER_WireDepositDetails details[num_details];
-        unsigned int i;
-
-        for (i=0;i<num_details;i++)
-        {
-          struct TALER_WireDepositDetails *detail = &details[i];
-          struct json_t *detail_j = json_array_get (details_j, i);
-          struct MAJ_Specification spec_detail[] = {
-            MAJ_spec_fixed_auto ("H_contract", &detail->h_contract),
-            MAJ_spec_amount ("deposit_value", &detail->coin_value),
-            MAJ_spec_amount ("deposit_fee", &detail->coin_fee),
-            MAJ_spec_uint64 ("transaction_id", &detail->transaction_id),
-            MAJ_spec_fixed_auto ("coin_pub", &detail->coin_pub),
-            MAJ_spec_end
-          };
-
-          if (GNUNET_OK !=
-              MAJ_parse_json (detail_j,
-                              spec_detail))
-          {
-            GNUNET_break_op (0);
-            response_code = 0;
-            break;
-          }
-        }
-        if (0 == response_code)
-          break;
-        wdh->cb (wdh->cb_cls,
-                 response_code,
-                 json,
-                 &h_wire,
-                 &total_amount,
-                 num_details,
-                 details);
-        json_decref (json);
-        TALER_MINT_wire_deposits_cancel (wdh);
-        return;
-      }
-    }
-    break;
-  case MHD_HTTP_BAD_REQUEST:
-    /* This should never happen, either us or the mint is buggy
-       (or API version conflict); just pass JSON reply to the application */
-    break;
-  case MHD_HTTP_UNAUTHORIZED:
-    /* Nothing really to verify, mint says one of the signatures is
-       invalid; as we checked them, this should never happen, we
-       should pass the JSON reply to the application */
-    break;
-  case MHD_HTTP_NOT_FOUND:
-    /* Mint does not know about transaction;
-       we should pass the reply to the application */
-    break;
-  case MHD_HTTP_INTERNAL_SERVER_ERROR:
-    /* Server had an internal issue; we should retry, but this API
-       leaves this to the application */
-    break;
-  default:
-    /* unexpected response code */
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u\n",
-                response_code);
-    GNUNET_break (0);
-    response_code = 0;
-    break;
-  }
-  wdh->cb (wdh->cb_cls,
-           response_code,
-           json,
-           NULL, NULL, 0, NULL);
-  json_decref (json);
-  TALER_MINT_wire_deposits_cancel (wdh);
-}
-
-
-/**
- * Query the mint about which transactions were combined
- * to create a wire transfer.
- *
- * @param mint mint to query
- * @param wtid raw wire transfer identifier to get information about
- * @param cb callback to call
- * @param cb_cls closure for @a cb
- * @return handle to cancel operation
- */
-struct TALER_MINT_WireDepositsHandle *
-TALER_MINT_wire_deposits (struct TALER_MINT_Handle *mint,
-                          const struct TALER_WireTransferIdentifierRawP *wtid,
-                          TALER_MINT_WireDepositsCallback cb,
-                          void *cb_cls)
-{
-  struct TALER_MINT_WireDepositsHandle *wdh;
-  struct TALER_MINT_Context *ctx;
-  char *buf;
-  char *path;
-  CURL *eh;
-
-  if (GNUNET_YES !=
-      MAH_handle_is_ready (mint))
-  {
-    GNUNET_break (0);
-    return NULL;
-  }
-
-  wdh = GNUNET_new (struct TALER_MINT_WireDepositsHandle);
-  wdh->mint = mint;
-  wdh->cb = cb;
-  wdh->cb_cls = cb_cls;
-
-  buf = GNUNET_STRINGS_data_to_string_alloc (wtid,
-                                             sizeof (struct TALER_WireTransferIdentifierRawP));
-  GNUNET_asprintf (&path,
-                   "/wire/deposits?wtid=%s",
-                   buf);
-  wdh->url = MAH_path_to_url (wdh->mint,
-                              path);
-  GNUNET_free (buf);
-  GNUNET_free (path);
-
-  eh = curl_easy_init ();
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_URL,
-                                   wdh->url));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEFUNCTION,
-                                   &MAC_download_cb));
-  GNUNET_assert (CURLE_OK ==
-                 curl_easy_setopt (eh,
-                                   CURLOPT_WRITEDATA,
-                                   &wdh->db));
-  ctx = MAH_handle_to_context (mint);
-  wdh->job = MAC_job_add (ctx,
-                          eh,
-                          GNUNET_YES,
-                          &handle_wire_deposits_finished,
-                          wdh);
-  return wdh;
-}
-
-
-/**
- * Cancel wire deposits request.  This function cannot be used on a request
- * handle if a response is already served for it.
- *
- * @param wdh the wire deposits request handle
- */
-void
-TALER_MINT_wire_deposits_cancel (struct TALER_MINT_WireDepositsHandle *wdh)
-{
-  if (NULL != wdh->job)
-  {
-    MAC_job_cancel (wdh->job);
-    wdh->job = NULL;
-  }
-  GNUNET_free_non_null (wdh->db.buf);
-  GNUNET_free (wdh->url);
-  GNUNET_free (wdh);
-}
-
-
-/* end of mint_api_wire_deposits.c */
diff --git a/src/mint-lib/test-mint-home/config/mint-common.conf b/src/mint-lib/test-mint-home/config/mint-common.conf
deleted file mode 100644
index b2b948268..000000000
--- a/src/mint-lib/test-mint-home/config/mint-common.conf
+++ /dev/null
@@ -1,30 +0,0 @@
-[mint]
-# Currency supported by the mint (can only be one)
-CURRENCY = EUR
-
-# Wire format supported by the mint
-# We use 'test' for testing of the actual
-# coin operations, and 'sepa' to test SEPA-specific routines.
-WIREFORMAT = test sepa
-
-# HTTP port the mint listens to
-PORT = 8081
-
-# Master public key used to sign the mint's various keys
-MASTER_PUBLIC_KEY = 98NJW3CQHZQGQXTY3K85K531XKPAPAVV4Q5V8PYYRR00NJGZWNVG
-
-# How to access our database
-DB = postgres
-
-# Is this is a testcase, use transient DB actions?
-TESTRUN = YES
-
-[mintdb-postgres]
-
-DB_CONN_STR = "postgres:///talercheck"
-
-[mint-wire-sepa]
-SEPA_RESPONSE_FILE = "test-mint-home/sepa.json"
-
-[mint-wire-test]
-REDIRECT_URL = "http://www.taler.net/"
diff --git a/src/mint-lib/test-mint-home/config/mint-keyup.conf b/src/mint-lib/test-mint-home/config/mint-keyup.conf
deleted file mode 100644
index 8ad1f3bb2..000000000
--- a/src/mint-lib/test-mint-home/config/mint-keyup.conf
+++ /dev/null
@@ -1,86 +0,0 @@
-[mint_keys]
-
-# how long is one signkey valid?
-signkey_duration = 4 weeks
-
-# how long are the signatures with the signkey valid?
-legal_duration = 2 years
-
-# how long do we generate denomination and signing keys
-# ahead of time?
-lookahead_sign = 32 weeks 1 day
-
-# how long do we provide to clients denomination and signing keys
-# ahead of time?
-lookahead_provide = 4 weeks 1 day
-
-
-# Coin definitions are detected because the section
-# name begins with "coin_".  The rest of the
-# name is free, but of course following the convention
-# of "coin_$CURRENCY[_$SUBUNIT]_$VALUE" make sense.
-[coin_eur_ct_1]
-value = EUR:0.01
-duration_overlap = 5 minutes
-duration_withdraw = 7 days
-duration_spend = 2 years
-duration_legal = 3 years
-fee_withdraw = EUR:0.00
-fee_deposit = EUR:0.00
-fee_refresh = EUR:0.01
-rsa_keysize = 1024
-
-[coin_eur_ct_10]
-value = EUR:0.10
-duration_overlap = 5 minutes
-duration_withdraw = 7 days
-duration_spend = 2 years
-duration_legal = 3 years
-fee_withdraw = EUR:0.01
-fee_deposit = EUR:0.01
-fee_refresh = EUR:0.03
-rsa_keysize = 1024
-
-[coin_eur_1]
-value = EUR:1
-duration_overlap = 5 minutes
-duration_withdraw = 7 days
-duration_spend = 2 years
-duration_legal = 3 years
-fee_withdraw = EUR:0.01
-fee_deposit = EUR:0.01
-fee_refresh = EUR:0.03
-rsa_keysize = 1024
-
-[coin_eur_5]
-value = EUR:5
-duration_overlap = 5 minutes
-duration_withdraw = 7 days
-duration_spend = 2 years
-duration_legal = 3 years
-fee_withdraw = EUR:0.01
-fee_deposit = EUR:0.01
-fee_refresh = EUR:0.03
-rsa_keysize = 1024
-
-[coin_eur_10]
-value = EUR:10
-duration_overlap = 5 minutes
-duration_withdraw = 7 days
-duration_spend = 2 years
-duration_legal = 3 years
-fee_withdraw = EUR:0.01
-fee_deposit = EUR:0.01
-fee_refresh = EUR:0.03
-rsa_keysize = 1024
-
-[coin_eur_1000]
-value = EUR:1000
-duration_overlap = 5 minutes
-duration_withdraw = 7 days
-duration_spend = 2 years
-duration_legal = 3 years
-fee_withdraw = EUR:0.01
-fee_deposit = EUR:0.01
-fee_refresh = EUR:0.03
-rsa_keysize = 2048
diff --git a/src/mint-lib/test_mint_api.c b/src/mint-lib/test_mint_api.c
deleted file mode 100644
index b243cc2cf..000000000
--- a/src/mint-lib/test_mint_api.c
+++ /dev/null
@@ -1,2599 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint/test_mint_api.c
- * @brief testcase to test mint's HTTP API interface
- * @author Sree Harsha Totakura <sreeharsha@totakura.in>
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include "taler_util.h"
-#include "taler_signatures.h"
-#include "taler_mint_service.h"
-#include <gnunet/gnunet_util_lib.h>
-#include <microhttpd.h>
-
-/**
- * Is the configuration file is set to include wire format 'test'?
- */
-#define WIRE_TEST 1
-
-/**
- * Is the configuration file is set to include wire format 'sepa'?
- */
-#define WIRE_SEPA 1
-
-/**
- * Main execution context for the main loop.
- */
-static struct TALER_MINT_Context *ctx;
-
-/**
- * Handle to access the mint.
- */
-static struct TALER_MINT_Handle *mint;
-
-/**
- * Task run on shutdown.
- */
-static struct GNUNET_SCHEDULER_Task *shutdown_task;
-
-/**
- * Task that runs the main event loop.
- */
-static struct GNUNET_SCHEDULER_Task *ctx_task;
-
-/**
- * Result of the testcases, #GNUNET_OK on success
- */
-static int result;
-
-
-/**
- * Opcodes for the interpreter.
- */
-enum OpCode
-{
-  /**
-   * Termination code, stops the interpreter loop (with success).
-   */
-  OC_END = 0,
-
-  /**
-   * Add funds to a reserve by (faking) incoming wire transfer.
-   */
-  OC_ADMIN_ADD_INCOMING,
-
-  /**
-   * Check status of a reserve.
-   */
-  OC_WITHDRAW_STATUS,
-
-  /**
-   * Withdraw a coin from a reserve.
-   */
-  OC_WITHDRAW_SIGN,
-
-  /**
-   * Deposit a coin (pay with it).
-   */
-  OC_DEPOSIT,
-
-  /**
-   * Melt a (set of) coins.
-   */
-  OC_REFRESH_MELT,
-
-  /**
-   * Complete melting session by withdrawing melted coins.
-   */
-  OC_REFRESH_REVEAL,
-
-  /**
-   * Verify mint's /refresh/link by linking original private key to
-   * results from #OC_REFRESH_REVEAL step.
-   */
-  OC_REFRESH_LINK,
-
-  /**
-   * Verify the mint's /wire-method.
-   */
-  OC_WIRE,
-
-  /**
-   * Verify mint's /wire/deposits method.
-   */
-  OC_WIRE_DEPOSITS,
-
-  /**
-   * Verify mint's /deposit/wtid method.
-   */
-  OC_DEPOSIT_WTID
-
-};
-
-
-/**
- * Structure specifying details about a coin to be melted.
- * Used in a NULL-terminated array as part of command
- * specification.
- */
-struct MeltDetails
-{
-
-  /**
-   * Amount to melt (including fee).
-   */
-  const char *amount;
-
-  /**
-   * Reference to reserve_withdraw operations for coin to
-   * be used for the /refresh/melt operation.
-   */
-  const char *coin_ref;
-
-};
-
-
-/**
- * Information about a fresh coin generated by the refresh operation.
- */
-struct FreshCoin
-{
-
-  /**
-   * If @e amount is NULL, this specifies the denomination key to
-   * use.  Otherwise, this will be set (by the interpreter) to the
-   * denomination PK matching @e amount.
-   */
-  const struct TALER_MINT_DenomPublicKey *pk;
-
-  /**
-   * Set (by the interpreter) to the mint's signature over the
-   * coin's public key.
-   */
-  struct TALER_DenominationSignature sig;
-
-  /**
-   * Set (by the interpreter) to the coin's private key.
-   */
-  struct TALER_CoinSpendPrivateKeyP coin_priv;
-
-};
-
-
-/**
- * Details for a mint operation to execute.
- */
-struct Command
-{
-  /**
-   * Opcode of the command.
-   */
-  enum OpCode oc;
-
-  /**
-   * Label for the command, can be NULL.
-   */
-  const char *label;
-
-  /**
-   * Which response code do we expect for this command?
-   */
-  unsigned int expected_response_code;
-
-  /**
-   * Details about the command.
-   */
-  union
-  {
-
-    /**
-     * Information for a #OC_ADMIN_ADD_INCOMING command.
-     */
-    struct
-    {
-
-      /**
-       * Label to another admin_add_incoming command if we
-       * should deposit into an existing reserve, NULL if
-       * a fresh reserve should be created.
-       */
-      const char *reserve_reference;
-
-      /**
-       * String describing the amount to add to the reserve.
-       */
-      const char *amount;
-
-      /**
-       * Wire details (JSON).
-       */
-      const char *wire;
-
-      /**
-       * Set (by the interpreter) to the reserve's private key
-       * we used to fill the reserve.
-       */
-      struct TALER_ReservePrivateKeyP reserve_priv;
-
-      /**
-       * Set to the API's handle during the operation.
-       */
-      struct TALER_MINT_AdminAddIncomingHandle *aih;
-
-    } admin_add_incoming;
-
-    /**
-     * Information for a #OC_WITHDRAW_STATUS command.
-     */
-    struct
-    {
-
-      /**
-       * Label to the #OC_ADMIN_ADD_INCOMING command which
-       * created the reserve.
-       */
-      const char *reserve_reference;
-
-      /**
-       * Set to the API's handle during the operation.
-       */
-      struct TALER_MINT_ReserveStatusHandle *wsh;
-
-      /**
-       * Expected reserve balance.
-       */
-      const char *expected_balance;
-
-    } reserve_status;
-
-    /**
-     * Information for a #OC_WITHDRAW_SIGN command.
-     */
-    struct
-    {
-
-      /**
-       * Which reserve should we withdraw from?
-       */
-      const char *reserve_reference;
-
-      /**
-       * String describing the denomination value we should withdraw.
-       * A corresponding denomination key must exist in the mint's
-       * offerings.  Can be NULL if @e pk is set instead.
-       */
-      const char *amount;
-
-      /**
-       * If @e amount is NULL, this specifies the denomination key to
-       * use.  Otherwise, this will be set (by the interpreter) to the
-       * denomination PK matching @e amount.
-       */
-      const struct TALER_MINT_DenomPublicKey *pk;
-
-      /**
-       * Set (by the interpreter) to the mint's signature over the
-       * coin's public key.
-       */
-      struct TALER_DenominationSignature sig;
-
-      /**
-       * Set (by the interpreter) to the coin's private key.
-       */
-      struct TALER_CoinSpendPrivateKeyP coin_priv;
-
-      /**
-       * Blinding key used for the operation.
-       */
-      struct TALER_DenominationBlindingKey blinding_key;
-
-      /**
-       * Withdraw handle (while operation is running).
-       */
-      struct TALER_MINT_ReserveWithdrawHandle *wsh;
-
-    } reserve_withdraw;
-
-    /**
-     * Information for a #OC_DEPOSIT command.
-     */
-    struct
-    {
-
-      /**
-       * Amount to deposit.
-       */
-      const char *amount;
-
-      /**
-       * Reference to a reserve_withdraw operation for a coin to
-       * be used for the /deposit operation.
-       */
-      const char *coin_ref;
-
-      /**
-       * If this @e coin_ref refers to an operation that generated
-       * an array of coins, this value determines which coin to use.
-       */
-      unsigned int coin_idx;
-
-      /**
-       * JSON string describing the merchant's "wire details".
-       */
-      const char *wire_details;
-
-      /**
-       * JSON string describing the contract between the two parties.
-       */
-      const char *contract;
-
-      /**
-       * Transaction ID to use.
-       */
-      uint64_t transaction_id;
-
-      /**
-       * Relative time (to add to 'now') to compute the refund deadline.
-       * Zero for no refunds.
-       */
-      struct GNUNET_TIME_Relative refund_deadline;
-
-      /**
-       * Set (by the interpreter) to a fresh private key of the merchant,
-       * if @e refund_deadline is non-zero.
-       */
-      struct TALER_MerchantPrivateKeyP merchant_priv;
-
-      /**
-       * Deposit handle while operation is running.
-       */
-      struct TALER_MINT_DepositHandle *dh;
-
-    } deposit;
-
-    /**
-     * Information for a #OC_REFRESH_MELT command.
-     */
-    struct
-    {
-
-      /**
-       * Information about coins to be melted.
-       */
-      struct MeltDetails *melted_coins;
-
-      /**
-       * Denominations of the fresh coins to withdraw.
-       */
-      const char **fresh_amounts;
-
-      /**
-       * Array of the public keys corresponding to
-       * the @e fresh_amounts, set by the interpreter.
-       */
-      const struct TALER_MINT_DenomPublicKey **fresh_pks;
-
-      /**
-       * Melt handle while operation is running.
-       */
-      struct TALER_MINT_RefreshMeltHandle *rmh;
-
-      /**
-       * Data used in the refresh operation, set by the interpreter.
-       */
-      char *refresh_data;
-
-      /**
-       * Number of bytes in @e refresh_data, set by the interpreter.
-       */
-      size_t refresh_data_length;
-
-      /**
-       * Set by the interpreter (upon completion) to the noreveal
-       * index selected by the mint.
-       */
-      uint16_t noreveal_index;
-
-    } refresh_melt;
-
-    /**
-     * Information for a #OC_REFRESH_REVEAL command.
-     */
-    struct
-    {
-
-      /**
-       * Melt operation this is the matching reveal for.
-       */
-      const char *melt_ref;
-
-      /**
-       * Reveal handle while operation is running.
-       */
-      struct TALER_MINT_RefreshRevealHandle *rrh;
-
-      /**
-       * Number of fresh coins withdrawn, set by the interpreter.
-       * Length of the @e fresh_coins array.
-       */
-      unsigned int num_fresh_coins;
-
-      /**
-       * Information about coins withdrawn, set by the interpreter.
-       */
-      struct FreshCoin *fresh_coins;
-
-    } refresh_reveal;
-
-    /**
-     * Information for a #OC_REFRESH_LINK command.
-     */
-    struct
-    {
-
-      /**
-       * Reveal operation this is the matching link for.
-       */
-      const char *reveal_ref;
-
-      /**
-       * Link handle while operation is running.
-       */
-      struct TALER_MINT_RefreshLinkHandle *rlh;
-
-      /**
-       * Which of the melted coins should be used for the linkage?
-       */
-      unsigned int coin_idx;
-
-    } refresh_link;
-
-    /**
-     * Information for the /wire command.
-     */
-    struct {
-
-      /**
-       * Handle to the wire request.
-       */
-      struct TALER_MINT_WireHandle *wh;
-
-      /**
-       * Format we expect to see, others will be *ignored*.
-       */
-      const char *format;
-
-    } wire;
-
-    /**
-     * Information for the /wire/deposits's command.
-     */
-    struct {
-
-      /**
-       * Handle to the wire deposits request.
-       */
-      struct TALER_MINT_WireDepositsHandle *wdh;
-
-      /**
-       * Reference to a /deposit/wtid command. If set, we use the
-       * WTID from that command.
-       */
-      const char *wtid_ref;
-
-      /**
-       * WTID to use (used if @e wtid_ref is NULL).
-       */
-      struct TALER_WireTransferIdentifierRawP wtid;
-
-      /* TODO: may want to add list of deposits we expected
-         to see aggregated here in the future. */
-
-    } wire_deposits;
-
-    /**
-     * Information for the /deposit/wtid command.
-     */
-    struct {
-
-      /**
-       * Handle to the deposit wtid request.
-       */
-      struct TALER_MINT_DepositWtidHandle *dwh;
-
-      /**
-       * Which /deposit operation should we obtain WTID data for?
-       */
-      const char *deposit_ref;
-
-      /**
-       * What is the expected total amount? Only used if
-       * @e expected_response_code was #MHD_HTTP_OK.
-       */
-      struct TALER_Amount total_amount_expected;
-
-      /**
-       * Wire transfer identifier, set if #MHD_HTTP_OK was the response code.
-       */
-      struct TALER_WireTransferIdentifierRawP wtid;
-
-    } deposit_wtid;
-
-  } details;
-
-};
-
-
-/**
- * State of the interpreter loop.
- */
-struct InterpreterState
-{
-  /**
-   * Keys from the mint.
-   */
-  const struct TALER_MINT_Keys *keys;
-
-  /**
-   * Commands the interpreter will run.
-   */
-  struct Command *commands;
-
-  /**
-   * Interpreter task (if one is scheduled).
-   */
-  struct GNUNET_SCHEDULER_Task *task;
-
-  /**
-   * Instruction pointer.  Tells #interpreter_run() which
-   * instruction to run next.
-   */
-  unsigned int ip;
-
-};
-
-
-/**
- * Task that runs the context's event loop with the GNUnet scheduler.
- *
- * @param cls unused
- * @param tc scheduler context (unused)
- */
-static void
-context_task (void *cls,
-              const struct GNUNET_SCHEDULER_TaskContext *tc);
-
-
-/**
- * Run the context task, the working set has changed.
- */
-static void
-trigger_context_task ()
-{
-  GNUNET_SCHEDULER_cancel (ctx_task);
-  ctx_task = GNUNET_SCHEDULER_add_now (&context_task,
-                                       NULL);
-}
-
-
-/**
- * The testcase failed, return with an error code.
- *
- * @param is interpreter state to clean up
- */
-static void
-fail (struct InterpreterState *is)
-{
-  result = GNUNET_SYSERR;
-  GNUNET_SCHEDULER_shutdown ();
-}
-
-
-/**
- * Find a command by label.
- *
- * @param is interpreter state to search
- * @param label label to look for
- * @return NULL if command was not found
- */
-static const struct Command *
-find_command (const struct InterpreterState *is,
-              const char *label)
-{
-  unsigned int i;
-  const struct Command *cmd;
-
-  if (NULL == label)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                "Attempt to lookup command for empty label\n");
-    return NULL;
-  }
-  for (i=0;OC_END != (cmd = &is->commands[i])->oc;i++)
-    if ( (NULL != cmd->label) &&
-         (0 == strcmp (cmd->label,
-                       label)) )
-      return cmd;
-  GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-              "Command not found: %s\n",
-              label);
-  return NULL;
-}
-
-
-/**
- * Run the main interpreter loop that performs mint operations.
- *
- * @param cls contains the `struct InterpreterState`
- * @param tc scheduler context
- */
-static void
-interpreter_run (void *cls,
-                 const struct GNUNET_SCHEDULER_TaskContext *tc);
-
-
-/**
- * Function called upon completion of our /admin/add/incoming request.
- *
- * @param cls closure with the interpreter state
- * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
- *                    0 if the mint's reply is bogus (fails to follow the protocol)
- * @param full_response full response from the mint (for logging, in case of errors)
- */
-static void
-add_incoming_cb (void *cls,
-                 unsigned int http_status,
-                 json_t *full_response)
-{
-  struct InterpreterState *is = cls;
-  struct Command *cmd = &is->commands[is->ip];
-
-  cmd->details.admin_add_incoming.aih = NULL;
-  if (MHD_HTTP_OK != http_status)
-  {
-    GNUNET_break (0);
-    fail (is);
-    return;
-  }
-  is->ip++;
-  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
-                                       is);
-}
-
-
-/**
- * Check if the given historic event @a h corresponds to the given
- * command @a cmd.
- *
- * @param h event in history
- * @param cmd an #OC_ADMIN_ADD_INCOMING command
- * @return #GNUNET_OK if they match, #GNUNET_SYSERR if not
- */
-static int
-compare_admin_add_incoming_history (const struct TALER_MINT_ReserveHistory *h,
-                                    const struct Command *cmd)
-{
-  struct TALER_Amount amount;
-
-  if (TALER_MINT_RTT_DEPOSIT != h->type)
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_string_to_amount (cmd->details.admin_add_incoming.amount,
-                                         &amount));
-  if (0 != TALER_amount_cmp (&amount,
-                             &h->amount))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Check if the given historic event @a h corresponds to the given
- * command @a cmd.
- *
- * @param h event in history
- * @param cmd an #OC_WITHDRAW_SIGN command
- * @return #GNUNET_OK if they match, #GNUNET_SYSERR if not
- */
-static int
-compare_reserve_withdraw_history (const struct TALER_MINT_ReserveHistory *h,
-                                  const struct Command *cmd)
-{
-  struct TALER_Amount amount;
-  struct TALER_Amount amount_with_fee;
-
-  if (TALER_MINT_RTT_WITHDRAWAL != h->type)
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_string_to_amount (cmd->details.reserve_withdraw.amount,
-                                         &amount));
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_amount_add (&amount_with_fee,
-                                   &amount,
-                                   &cmd->details.reserve_withdraw.pk->fee_withdraw));
-  if (0 != TALER_amount_cmp (&amount_with_fee,
-                             &h->amount))
-  {
-    GNUNET_break_op (0);
-    return GNUNET_SYSERR;
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Function called with the result of a /reserve/status request.
- *
- * @param cls closure with the interpreter state
- * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
- *                    0 if the mint's reply is bogus (fails to follow the protocol)
- * @param[in] json original response in JSON format (useful only for diagnostics)
- * @param balance current balance in the reserve, NULL on error
- * @param history_length number of entries in the transaction history, 0 on error
- * @param history detailed transaction history, NULL on error
- */
-static void
-reserve_status_cb (void *cls,
-                   unsigned int http_status,
-                   json_t *json,
-                   const struct TALER_Amount *balance,
-                   unsigned int history_length,
-                   const struct TALER_MINT_ReserveHistory *history)
-{
-  struct InterpreterState *is = cls;
-  struct Command *cmd = &is->commands[is->ip];
-  struct Command *rel;
-  unsigned int i;
-  unsigned int j;
-  struct TALER_Amount amount;
-
-  cmd->details.reserve_status.wsh = NULL;
-  if (cmd->expected_response_code != http_status)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u to command %s\n",
-                http_status,
-                cmd->label);
-    GNUNET_break (0);
-    json_dumpf (json, stderr, 0);
-    fail (is);
-    return;
-  }
-  switch (http_status)
-  {
-  case MHD_HTTP_OK:
-    /* FIXME: note that history events may come in a different
-       order than the commands. However, for now this works... */
-    j = 0;
-    for (i=0;i<is->ip;i++)
-    {
-      switch ((rel = &is->commands[i])->oc)
-      {
-      case OC_ADMIN_ADD_INCOMING:
-        if ( ( (NULL != rel->label) &&
-               (0 == strcmp (cmd->details.reserve_status.reserve_reference,
-                             rel->label) ) ) ||
-             ( (NULL != rel->details.admin_add_incoming.reserve_reference) &&
-               (0 == strcmp (cmd->details.reserve_status.reserve_reference,
-                             rel->details.admin_add_incoming.reserve_reference) ) ) )
-        {
-          if (GNUNET_OK !=
-              compare_admin_add_incoming_history (&history[j],
-                                                  rel))
-          {
-            GNUNET_break (0);
-            fail (is);
-            return;
-          }
-          j++;
-        }
-        break;
-      case OC_WITHDRAW_SIGN:
-        if (0 == strcmp (cmd->details.reserve_status.reserve_reference,
-                         rel->details.reserve_withdraw.reserve_reference))
-        {
-          if (GNUNET_OK !=
-              compare_reserve_withdraw_history (&history[j],
-                                             rel))
-          {
-            GNUNET_break (0);
-            fail (is);
-            return;
-          }
-          j++;
-        }
-        break;
-      default:
-        /* unreleated, just skip */
-        break;
-      }
-    }
-    if (j != history_length)
-    {
-      GNUNET_break (0);
-      fail (is);
-      return;
-    }
-    if (NULL != cmd->details.reserve_status.expected_balance)
-    {
-      GNUNET_assert (GNUNET_OK ==
-                     TALER_string_to_amount (cmd->details.reserve_status.expected_balance,
-                                             &amount));
-      if (0 != TALER_amount_cmp (&amount,
-                                 balance))
-      {
-        GNUNET_break (0);
-        fail (is);
-        return;
-      }
-    }
-    break;
-  default:
-    /* Unsupported status code (by test harness) */
-    GNUNET_break (0);
-    break;
-  }
-  is->ip++;
-  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
-                                       is);
-}
-
-
-/**
- * Function called upon completion of our /reserve/withdraw request.
- *
- * @param cls closure with the interpreter state
- * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
- *                    0 if the mint's reply is bogus (fails to follow the protocol)
- * @param sig signature over the coin, NULL on error
- * @param full_response full response from the mint (for logging, in case of errors)
- */
-static void
-reserve_withdraw_cb (void *cls,
-                     unsigned int http_status,
-                     const struct TALER_DenominationSignature *sig,
-                     json_t *full_response)
-{
-  struct InterpreterState *is = cls;
-  struct Command *cmd = &is->commands[is->ip];
-
-  cmd->details.reserve_withdraw.wsh = NULL;
-  if (cmd->expected_response_code != http_status)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u to command %s\n",
-                http_status,
-                cmd->label);
-    json_dumpf (full_response, stderr, 0);
-    GNUNET_break (0);
-    fail (is);
-    return;
-  }
-  switch (http_status)
-  {
-  case MHD_HTTP_OK:
-    if (NULL == sig)
-    {
-      GNUNET_break (0);
-      fail (is);
-      return;
-    }
-    cmd->details.reserve_withdraw.sig.rsa_signature
-      = GNUNET_CRYPTO_rsa_signature_dup (sig->rsa_signature);
-    break;
-  case MHD_HTTP_PAYMENT_REQUIRED:
-    /* nothing to check */
-    break;
-  default:
-    /* Unsupported status code (by test harness) */
-    GNUNET_break (0);
-    break;
-  }
-  is->ip++;
-  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
-                                       is);
-}
-
-
-/**
- * Function called with the result of a /deposit operation.
- *
- * @param cls closure with the interpreter state
- * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful deposit;
- *                    0 if the mint's reply is bogus (fails to follow the protocol)
- * @param obj the received JSON reply, should be kept as proof (and, in case of errors,
- *            be forwarded to the customer)
- */
-static void
-deposit_cb (void *cls,
-            unsigned int http_status,
-            json_t *obj)
-{
-  struct InterpreterState *is = cls;
-  struct Command *cmd = &is->commands[is->ip];
-
-  cmd->details.deposit.dh = NULL;
-  if (cmd->expected_response_code != http_status)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u to command %s\n",
-                http_status,
-                cmd->label);
-    json_dumpf (obj, stderr, 0);
-    fail (is);
-    return;
-  }
-  is->ip++;
-  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
-                                       is);
-}
-
-
-/**
- * Function called with the result of the /refresh/melt operation.
- *
- * @param cls closure with the interpreter state
- * @param http_status HTTP response code, never #MHD_HTTP_OK (200) as for successful intermediate response this callback is skipped.
- *                    0 if the mint's reply is bogus (fails to follow the protocol)
- * @param noreveal_index choice by the mint in the cut-and-choose protocol,
- *                    UINT16_MAX on error
- * @param full_response full response from the mint (for logging, in case of errors)
- */
-static void
-melt_cb (void *cls,
-         unsigned int http_status,
-         uint16_t noreveal_index,
-         json_t *full_response)
-{
-  struct InterpreterState *is = cls;
-  struct Command *cmd = &is->commands[is->ip];
-
-  cmd->details.refresh_melt.rmh = NULL;
-  if (cmd->expected_response_code != http_status)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u to command %s\n",
-                http_status,
-                cmd->label);
-    json_dumpf (full_response, stderr, 0);
-    fail (is);
-    return;
-  }
-  cmd->details.refresh_melt.noreveal_index = noreveal_index;
-  is->ip++;
-  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
-                                       is);
-}
-
-
-/**
- * Function called with the result of the /refresh/reveal operation.
- *
- * @param cls closure with the interpreter state
- * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
- *                    0 if the mint's reply is bogus (fails to follow the protocol)
- * @param num_coins number of fresh coins created, length of the @a sigs and @a coin_privs arrays, 0 if the operation failed
- * @param coin_privs array of @a num_coins private keys for the coins that were created, NULL on error
- * @param sigs array of signature over @a num_coins coins, NULL on error
- * @param full_response full response from the mint (for logging, in case of errors)
- */
-static void
-reveal_cb (void *cls,
-           unsigned int http_status,
-           unsigned int num_coins,
-           const struct TALER_CoinSpendPrivateKeyP *coin_privs,
-           const struct TALER_DenominationSignature *sigs,
-           json_t *full_response)
-{
-  struct InterpreterState *is = cls;
-  struct Command *cmd = &is->commands[is->ip];
-  const struct Command *ref;
-  unsigned int i;
-
-  cmd->details.refresh_reveal.rrh = NULL;
-  if (cmd->expected_response_code != http_status)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u to command %s\n",
-                http_status,
-                cmd->label);
-    json_dumpf (full_response, stderr, 0);
-    fail (is);
-    return;
-  }
-  ref = find_command (is,
-                      cmd->details.refresh_reveal.melt_ref);
-  cmd->details.refresh_reveal.num_fresh_coins = num_coins;
-  switch (http_status)
-  {
-  case MHD_HTTP_OK:
-    cmd->details.refresh_reveal.fresh_coins
-      = GNUNET_new_array (num_coins,
-                          struct FreshCoin);
-    for (i=0;i<num_coins;i++)
-    {
-      struct FreshCoin *fc = &cmd->details.refresh_reveal.fresh_coins[i];
-
-      fc->pk = ref->details.refresh_melt.fresh_pks[i];
-      fc->coin_priv = coin_privs[i];
-      fc->sig.rsa_signature
-        = GNUNET_CRYPTO_rsa_signature_dup (sigs[i].rsa_signature);
-    }
-    break;
-  default:
-    break;
-  }
-
-  is->ip++;
-  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
-                                       is);
-}
-
-
-/**
- * Function called with the result of a /refresh/link operation.
- *
- * @param cls closure with the interpreter state
- * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful status request
- *                    0 if the mint's reply is bogus (fails to follow the protocol)
- * @param num_coins number of fresh coins created, length of the @a sigs and @a coin_privs arrays, 0 if the operation failed
- * @param coin_privs array of @a num_coins private keys for the coins that were created, NULL on error
- * @param sigs array of signature over @a num_coins coins, NULL on error
- * @param pubs array of public keys for the @a sigs, NULL on error
- * @param full_response full response from the mint (for logging, in case of errors)
- */
-static void
-link_cb (void *cls,
-         unsigned int http_status,
-         unsigned int num_coins,
-         const struct TALER_CoinSpendPrivateKeyP *coin_privs,
-         const struct TALER_DenominationSignature *sigs,
-         const struct TALER_DenominationPublicKey *pubs,
-         json_t *full_response)
-{
-  struct InterpreterState *is = cls;
-  struct Command *cmd = &is->commands[is->ip];
-  const struct Command *ref;
-  unsigned int i;
-  unsigned int j;
-  unsigned int found;
-
-  cmd->details.refresh_link.rlh = NULL;
-  if (cmd->expected_response_code != http_status)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u to command %s\n",
-                http_status,
-                cmd->label);
-    json_dumpf (full_response, stderr, 0);
-    fail (is);
-    return;
-  }
-  ref = find_command (is,
-                      cmd->details.refresh_link.reveal_ref);
-  switch (http_status)
-  {
-  case MHD_HTTP_OK:
-    /* check that number of coins returned matches */
-    if (num_coins != ref->details.refresh_reveal.num_fresh_coins)
-    {
-      GNUNET_break (0);
-      fail (is);
-      return;
-    }
-    /* check that the coins match */
-    for (i=0;i<num_coins;i++)
-      for (j=i+1;j<num_coins;j++)
-	if (0 == memcmp (&coin_privs[i],
-			 &coin_privs[j],
-			 sizeof (struct TALER_CoinSpendPrivateKeyP)))
-	  GNUNET_break (0);
-    /* Note: coins might be legitimately permutated in here... */
-    found = 0;
-    for (i=0;i<num_coins;i++)
-      for (j=0;j<num_coins;j++)
-      {
-	const struct FreshCoin *fc;
-
-	fc = &ref->details.refresh_reveal.fresh_coins[j];
-	if ( (0 == memcmp (&coin_privs[i],
-			   &fc->coin_priv,
-			   sizeof (struct TALER_CoinSpendPrivateKeyP))) &&
-	     (0 == GNUNET_CRYPTO_rsa_signature_cmp (fc->sig.rsa_signature,
-						    sigs[i].rsa_signature)) &&
-	     (0 == GNUNET_CRYPTO_rsa_public_key_cmp (fc->pk->key.rsa_public_key,
-						     pubs[i].rsa_public_key)) )
-	{
-	  found++;
-	  break;
-	}
-      }
-    if (found != num_coins)
-    {
-      fprintf (stderr,
-	       "Only %u/%u coins match expectations\n",
-	       found,
-	       num_coins);
-      GNUNET_break (0);
-      fail (is);
-      return;
-    }
-    break;
-  default:
-    break;
-  }
-  is->ip++;
-  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
-                                       is);
-}
-
-
-/**
- * Find denomination key matching the given amount.
- *
- * @param keys array of keys to search
- * @param amount coin value to look for
- * @return NULL if no matching key was found
- */
-static const struct TALER_MINT_DenomPublicKey *
-find_pk (const struct TALER_MINT_Keys *keys,
-         const struct TALER_Amount *amount)
-{
-  unsigned int i;
-  struct GNUNET_TIME_Absolute now;
-  struct TALER_MINT_DenomPublicKey *pk;
-  char *str;
-
-  now = GNUNET_TIME_absolute_get ();
-  for (i=0;i<keys->num_denom_keys;i++)
-  {
-    pk = &keys->denom_keys[i];
-    if ( (0 == TALER_amount_cmp (amount,
-                                 &pk->value)) &&
-         (now.abs_value_us >= pk->valid_from.abs_value_us) &&
-         (now.abs_value_us < pk->withdraw_valid_until.abs_value_us) )
-      return pk;
-  }
-  /* do 2nd pass to check if expiration times are to blame for failure */
-  str = TALER_amount_to_string (amount);
-  for (i=0;i<keys->num_denom_keys;i++)
-  {
-    pk = &keys->denom_keys[i];
-    if ( (0 == TALER_amount_cmp (amount,
-                                 &pk->value)) &&
-         ( (now.abs_value_us < pk->valid_from.abs_value_us) ||
-           (now.abs_value_us > pk->withdraw_valid_until.abs_value_us) ) )
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                  "Have denomination key for `%s', but with wrong expiration range %llu vs [%llu,%llu)\n",
-                  str,
-                  now.abs_value_us,
-                  pk->valid_from.abs_value_us,
-                  pk->withdraw_valid_until.abs_value_us);
-      GNUNET_free (str);
-      return NULL;
-    }
-  }
-  GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-              "No denomination key for amount %s found\n",
-              str);
-  GNUNET_free (str);
-  return NULL;
-}
-
-
-/**
- * Callbacks called with the result(s) of a
- * wire format inquiry request to the mint.
- *
- * The callback is invoked multiple times, once for each supported @a
- * method.  Finally, it is invoked one more time with cls/0/NULL/NULL
- * to indicate the end of the iteration.  If any request fails to
- * generate a valid response from the mint, @a http_status will also
- * be zero and the iteration will also end.  Thus, the iteration
- * always ends with a final call with an @a http_status of 0. If the
- * @a http_status is already 0 on the first call, then the response to
- * the /wire request was invalid.  Later, clients can tell the
- * difference between @a http_status of 0 indicating a failed
- * /wire/method request and a regular end of the iteration by @a
- * method being non-NULL.  If the mint simply correctly asserts that
- * it does not support any methods, @a method will be NULL but the @a
- * http_status will be #MHD_HTTP_OK for the first call (followed by a
- * cls/0/NULL/NULL call to signal the end of the iteration).
- *
- * @param cls closure with the interpreter state
- * @param http_status HTTP response code, #MHD_HTTP_OK (200) for successful request;
- *                    0 if the mint's reply is bogus (fails to follow the protocol)
- * @param method wire format method supported, i.e. "test" or "sepa", or NULL
- *            if already the /wire request failed.
- * @param obj the received JSON reply, if successful this should be the wire
- *            format details as provided by /wire/METHOD/, or NULL if the
- *            reply was not in JSON format (in this case, the client might
- *            want to do an HTTP request to /wire/METHOD/ with a browser to
- *            provide more information to the user about the @a method).
- */
-static void
-wire_cb (void *cls,
-         unsigned int http_status,
-         const char *method,
-         json_t *obj)
-{
-  struct InterpreterState *is = cls;
-  struct Command *cmd = &is->commands[is->ip];
-
-  if (0 == http_status)
-  {
-    /* 0 always signals the end of the iteration */
-    cmd->details.wire.wh = NULL;
-  }
-  else if ( (NULL != method) &&
-            (0 != strcasecmp (method,
-                              cmd->details.wire.format)) )
-  {
-    /* not the method we care about, skip */
-    return;
-  }
-  if (cmd->expected_response_code != http_status)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u to command %s/%s\n",
-                http_status,
-                cmd->label,
-                method);
-    json_dumpf (obj, stderr, 0);
-    fail (is);
-    return;
-  }
-  if (0 == http_status)
-  {
-    /* end of iteration, move to next command */
-    is->ip++;
-    is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
-                                         is);
-    return;
-  }
-  /* For now, we only support to be called only once
-     with a "positive" result; so we switch to an
-     expected value of 0 for the 2nd iteration */
-  cmd->expected_response_code = 0;
-}
-
-
-/**
- * Function called with detailed wire transfer data, including all
- * of the coin transactions that were combined into the wire transfer.
- *
- * @param cls closure
- * @param http_status HTTP status code we got, 0 on mint protocol violation
- * @param json original json reply (may include signatures, those have then been
- *        validated already)
- * @param wtid extracted wire transfer identifier, or NULL if the mint could
- *             not provide any (set only if @a http_status is #MHD_HTTP_OK)
- * @param total_amount total amount of the wire transfer, or NULL if the mint could
- *             not provide any @a wtid (set only if @a http_status is #MHD_HTTP_OK)
- * @param details_length length of the @a details array
- * @param details array with details about the combined transactions
- */
-static void
-wire_deposits_cb (void *cls,
-                  unsigned int http_status,
-                  json_t *json,
-                  const struct GNUNET_HashCode *h_wire,
-                  const struct TALER_Amount *total_amount,
-                  unsigned int details_length,
-                  const struct TALER_WireDepositDetails *details)
-{
-  struct InterpreterState *is = cls;
-  struct Command *cmd = &is->commands[is->ip];
-  const struct Command *ref;
-
-  cmd->details.wire_deposits.wdh = NULL;
-  ref = find_command (is,
-                      cmd->details.wire_deposits.wtid_ref);
-  if (cmd->expected_response_code != http_status)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u to command %s\n",
-                http_status,
-                cmd->label);
-    json_dumpf (json, stderr, 0);
-    fail (is);
-    return;
-  }
-  switch (http_status)
-  {
-  case MHD_HTTP_OK:
-    if (0 != TALER_amount_cmp (total_amount,
-                               &ref->details.deposit_wtid.total_amount_expected))
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                  "Total amount missmatch to command %s\n",
-                  http_status,
-                  cmd->label);
-      json_dumpf (json, stderr, 0);
-      fail (is);
-      return;
-    }
-    if (NULL != ref->details.deposit_wtid.deposit_ref)
-    {
-      const struct Command *dep;
-      struct GNUNET_HashCode hw;
-
-      dep = find_command (is,
-                          ref->details.deposit_wtid.deposit_ref);
-      GNUNET_CRYPTO_hash (dep->details.deposit.wire_details,
-                          strlen (dep->details.deposit.wire_details),
-                          &hw);
-      if (0 != memcmp (&hw,
-                       h_wire,
-                       sizeof (struct GNUNET_HashCode)))
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                    "Wire hash missmatch to command %s\n",
-                    cmd->label);
-        json_dumpf (json, stderr, 0);
-        fail (is);
-        return;
-      }
-    }
-    break;
-  default:
-    break;
-  }
-
-  /* move to next command */
-  is->ip++;
-  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
-                                       is);
-}
-
-
-/**
- * Function called with detailed wire transfer data.
- *
- * @param cls closure
- * @param http_status HTTP status code we got, 0 on mint protocol violation
- * @param json original json reply (may include signatures, those have then been
- *        validated already)
- * @param wtid wire transfer identifier used by the mint, NULL if mint did not
- *                  yet execute the transaction
- * @param execution_time actual or planned execution time for the wire transfer
- * @param coin_contribution contribution to the @a total_amount of the deposited coin (may be NULL)
- * @param total_amount total amount of the wire transfer, or NULL if the mint could
- *             not provide any @a wtid (set only if @a http_status is #MHD_HTTP_OK)
- */
-static void
-deposit_wtid_cb (void *cls,
-                 unsigned int http_status,
-                 json_t *json,
-                 const struct TALER_WireTransferIdentifierRawP *wtid,
-                 struct GNUNET_TIME_Absolute execution_time,
-                 const struct TALER_Amount *coin_contribution)
-{
-  struct InterpreterState *is = cls;
-  struct Command *cmd = &is->commands[is->ip];
-
-  cmd->details.deposit_wtid.dwh = NULL;
-  if (cmd->expected_response_code != http_status)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unexpected response code %u to command %s\n",
-                http_status,
-                cmd->label);
-    json_dumpf (json, stderr, 0);
-    fail (is);
-    return;
-  }
-  switch (http_status)
-  {
-  case MHD_HTTP_OK:
-    cmd->details.deposit_wtid.wtid = *wtid;
-    break;
-  default:
-    break;
-  }
-
-  /* move to next command */
-  is->ip++;
-  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
-                                       is);
-}
-
-
-/**
- * Run the main interpreter loop that performs mint operations.
- *
- * @param cls contains the `struct InterpreterState`
- * @param tc scheduler context
- */
-static void
-interpreter_run (void *cls,
-                 const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
-  struct InterpreterState *is = cls;
-  struct Command *cmd = &is->commands[is->ip];
-  const struct Command *ref;
-  struct TALER_ReservePublicKeyP reserve_pub;
-  struct TALER_CoinSpendPublicKeyP coin_pub;
-  struct TALER_Amount amount;
-  struct GNUNET_TIME_Absolute execution_date;
-  json_t *wire;
-
-  is->task = NULL;
-  if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
-  {
-    fprintf (stderr,
-             "Test aborted by shutdown request\n");
-    fail (is);
-    return;
-  }
-  switch (cmd->oc)
-  {
-  case OC_END:
-    result = GNUNET_OK;
-    GNUNET_SCHEDULER_shutdown ();
-    return;
-  case OC_ADMIN_ADD_INCOMING:
-    if (NULL !=
-        cmd->details.admin_add_incoming.reserve_reference)
-    {
-      ref = find_command (is,
-                          cmd->details.admin_add_incoming.reserve_reference);
-      GNUNET_assert (NULL != ref);
-      GNUNET_assert (OC_ADMIN_ADD_INCOMING == ref->oc);
-      cmd->details.admin_add_incoming.reserve_priv
-        = ref->details.admin_add_incoming.reserve_priv;
-    }
-    else
-    {
-      struct GNUNET_CRYPTO_EddsaPrivateKey *priv;
-
-      priv = GNUNET_CRYPTO_eddsa_key_create ();
-      cmd->details.admin_add_incoming.reserve_priv.eddsa_priv = *priv;
-      GNUNET_free (priv);
-    }
-    GNUNET_CRYPTO_eddsa_key_get_public (&cmd->details.admin_add_incoming.reserve_priv.eddsa_priv,
-                                        &reserve_pub.eddsa_pub);
-    if (GNUNET_OK !=
-        TALER_string_to_amount (cmd->details.admin_add_incoming.amount,
-                                &amount))
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                  "Failed to parse amount `%s' at %u\n",
-                  cmd->details.admin_add_incoming.amount,
-                  is->ip);
-      fail (is);
-      return;
-    }
-    wire = json_loads (cmd->details.admin_add_incoming.wire,
-                       JSON_REJECT_DUPLICATES,
-                       NULL);
-    if (NULL == wire)
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                  "Failed to parse wire details `%s' at %u\n",
-                  cmd->details.admin_add_incoming.wire,
-                  is->ip);
-      fail (is);
-      return;
-    }
-    execution_date = GNUNET_TIME_absolute_get ();
-    TALER_round_abs_time (&execution_date);
-    cmd->details.admin_add_incoming.aih
-      = TALER_MINT_admin_add_incoming (mint,
-                                       &reserve_pub,
-                                       &amount,
-                                       execution_date,
-                                       wire,
-                                       &add_incoming_cb,
-                                       is);
-    if (NULL == cmd->details.admin_add_incoming.aih)
-    {
-      GNUNET_break (0);
-      fail (is);
-      return;
-    }
-    trigger_context_task ();
-    return;
-  case OC_WITHDRAW_STATUS:
-    GNUNET_assert (NULL !=
-                   cmd->details.reserve_status.reserve_reference);
-    ref = find_command (is,
-                        cmd->details.reserve_status.reserve_reference);
-    GNUNET_assert (NULL != ref);
-    GNUNET_assert (OC_ADMIN_ADD_INCOMING == ref->oc);
-    GNUNET_CRYPTO_eddsa_key_get_public (&ref->details.admin_add_incoming.reserve_priv.eddsa_priv,
-                                        &reserve_pub.eddsa_pub);
-    cmd->details.reserve_status.wsh
-      = TALER_MINT_reserve_status (mint,
-                                   &reserve_pub,
-                                   &reserve_status_cb,
-                                   is);
-    trigger_context_task ();
-    return;
-  case OC_WITHDRAW_SIGN:
-    GNUNET_assert (NULL !=
-                   cmd->details.reserve_withdraw.reserve_reference);
-    ref = find_command (is,
-                        cmd->details.reserve_withdraw.reserve_reference);
-    GNUNET_assert (NULL != ref);
-    GNUNET_assert (OC_ADMIN_ADD_INCOMING == ref->oc);
-    if (NULL != cmd->details.reserve_withdraw.amount)
-    {
-      if (GNUNET_OK !=
-          TALER_string_to_amount (cmd->details.reserve_withdraw.amount,
-                                  &amount))
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                    "Failed to parse amount `%s' at %u\n",
-                    cmd->details.reserve_withdraw.amount,
-                    is->ip);
-        fail (is);
-        return;
-      }
-      cmd->details.reserve_withdraw.pk = find_pk (is->keys,
-                                                  &amount);
-    }
-    if (NULL == cmd->details.reserve_withdraw.pk)
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                  "Failed to determine denomination key at %u\n",
-                  is->ip);
-      fail (is);
-      return;
-    }
-
-    /* create coin's private key */
-    {
-      struct GNUNET_CRYPTO_EddsaPrivateKey *priv;
-
-      priv = GNUNET_CRYPTO_eddsa_key_create ();
-      cmd->details.reserve_withdraw.coin_priv.eddsa_priv = *priv;
-      GNUNET_free (priv);
-    }
-    GNUNET_CRYPTO_eddsa_key_get_public (&cmd->details.reserve_withdraw.coin_priv.eddsa_priv,
-                                        &coin_pub.eddsa_pub);
-    cmd->details.reserve_withdraw.blinding_key.rsa_blinding_key
-      = GNUNET_CRYPTO_rsa_blinding_key_create (GNUNET_CRYPTO_rsa_public_key_len (cmd->details.reserve_withdraw.pk->key.rsa_public_key));
-    cmd->details.reserve_withdraw.wsh
-      = TALER_MINT_reserve_withdraw (mint,
-                                     cmd->details.reserve_withdraw.pk,
-                                     &ref->details.admin_add_incoming.reserve_priv,
-                                     &cmd->details.reserve_withdraw.coin_priv,
-                                     &cmd->details.reserve_withdraw.blinding_key,
-                                     &reserve_withdraw_cb,
-                                     is);
-    if (NULL == cmd->details.reserve_withdraw.wsh)
-    {
-      GNUNET_break (0);
-      fail (is);
-      return;
-    }
-    trigger_context_task ();
-    return;
-  case OC_DEPOSIT:
-    {
-      struct GNUNET_HashCode h_contract;
-      const struct TALER_CoinSpendPrivateKeyP *coin_priv;
-      const struct TALER_MINT_DenomPublicKey *coin_pk;
-      const struct TALER_DenominationSignature *coin_pk_sig;
-      struct TALER_CoinSpendPublicKeyP coin_pub;
-      struct TALER_CoinSpendSignatureP coin_sig;
-      struct GNUNET_TIME_Absolute refund_deadline;
-      struct GNUNET_TIME_Absolute wire_deadline;
-      struct GNUNET_TIME_Absolute timestamp;
-      struct GNUNET_CRYPTO_EddsaPrivateKey *priv;
-      struct TALER_MerchantPublicKeyP merchant_pub;
-      json_t *contract;
-      json_t *wire;
-
-      GNUNET_assert (NULL !=
-                     cmd->details.deposit.coin_ref);
-      ref = find_command (is,
-                          cmd->details.deposit.coin_ref);
-      GNUNET_assert (NULL != ref);
-      switch (ref->oc)
-      {
-      case OC_WITHDRAW_SIGN:
-        coin_priv = &ref->details.reserve_withdraw.coin_priv;
-        coin_pk = ref->details.reserve_withdraw.pk;
-        coin_pk_sig = &ref->details.reserve_withdraw.sig;
-        break;
-      case OC_REFRESH_REVEAL:
-        {
-          const struct FreshCoin *fc;
-          unsigned int idx;
-
-          idx = cmd->details.deposit.coin_idx;
-          GNUNET_assert (idx < ref->details.refresh_reveal.num_fresh_coins);
-          fc = &ref->details.refresh_reveal.fresh_coins[idx];
-
-          coin_priv = &fc->coin_priv;
-          coin_pk = fc->pk;
-          coin_pk_sig = &fc->sig;
-        }
-        break;
-      default:
-        GNUNET_assert (0);
-      }
-      if (GNUNET_OK !=
-          TALER_string_to_amount (cmd->details.deposit.amount,
-                                  &amount))
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                    "Failed to parse amount `%s' at %u\n",
-                    cmd->details.deposit.amount,
-                    is->ip);
-        fail (is);
-        return;
-      }
-      contract = json_loads (cmd->details.deposit.contract,
-                             JSON_REJECT_DUPLICATES,
-                             NULL);
-      if (NULL == contract)
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                    "Failed to parse contract details `%s' at %u/%s\n",
-                    cmd->details.deposit.contract,
-                    is->ip,
-                    cmd->label);
-        fail (is);
-        return;
-      }
-      TALER_hash_json (contract,
-                       &h_contract);
-      wire = json_loads (cmd->details.deposit.wire_details,
-                         JSON_REJECT_DUPLICATES,
-                         NULL);
-      if (NULL == wire)
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                    "Failed to parse wire details `%s' at %u/%s\n",
-                    cmd->details.deposit.wire_details,
-                    is->ip,
-                    cmd->label);
-        fail (is);
-        return;
-      }
-      GNUNET_CRYPTO_eddsa_key_get_public (&coin_priv->eddsa_priv,
-                                          &coin_pub.eddsa_pub);
-
-      priv = GNUNET_CRYPTO_eddsa_key_create ();
-      cmd->details.deposit.merchant_priv.eddsa_priv = *priv;
-      GNUNET_free (priv);
-      if (0 != cmd->details.deposit.refund_deadline.rel_value_us)
-      {
-        refund_deadline = GNUNET_TIME_relative_to_absolute (cmd->details.deposit.refund_deadline);
-      }
-      else
-      {
-        refund_deadline = GNUNET_TIME_UNIT_ZERO_ABS;
-      }
-      GNUNET_CRYPTO_eddsa_key_get_public (&cmd->details.deposit.merchant_priv.eddsa_priv,
-                                          &merchant_pub.eddsa_pub);
-
-      wire_deadline = GNUNET_TIME_relative_to_absolute (GNUNET_TIME_UNIT_DAYS);
-      timestamp = GNUNET_TIME_absolute_get ();
-      TALER_round_abs_time (&timestamp);
-      {
-        struct TALER_DepositRequestPS dr;
-
-        memset (&dr, 0, sizeof (dr));
-        dr.purpose.size = htonl (sizeof (struct TALER_DepositRequestPS));
-        dr.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_DEPOSIT);
-        dr.h_contract = h_contract;
-        TALER_hash_json (wire,
-                         &dr.h_wire);
-        dr.timestamp = GNUNET_TIME_absolute_hton (timestamp);
-        dr.refund_deadline = GNUNET_TIME_absolute_hton (refund_deadline);
-        dr.transaction_id = GNUNET_htonll (cmd->details.deposit.transaction_id);
-        TALER_amount_hton (&dr.amount_with_fee,
-                           &amount);
-        TALER_amount_hton (&dr.deposit_fee,
-                           &coin_pk->fee_deposit);
-        dr.merchant = merchant_pub;
-        dr.coin_pub = coin_pub;
-        GNUNET_assert (GNUNET_OK ==
-                       GNUNET_CRYPTO_eddsa_sign (&coin_priv->eddsa_priv,
-                                                 &dr.purpose,
-                                                 &coin_sig.eddsa_signature));
-      }
-      cmd->details.deposit.dh
-        = TALER_MINT_deposit (mint,
-                              &amount,
-                              wire_deadline,
-                              wire,
-                              &h_contract,
-                              &coin_pub,
-                              coin_pk_sig,
-                              &coin_pk->key,
-                              timestamp,
-                              cmd->details.deposit.transaction_id,
-                              &merchant_pub,
-                              refund_deadline,
-                              &coin_sig,
-                              &deposit_cb,
-                              is);
-      if (NULL == cmd->details.deposit.dh)
-      {
-        GNUNET_break (0);
-        json_decref (wire);
-        fail (is);
-        return;
-      }
-      json_decref (wire);
-      trigger_context_task ();
-      return;
-    }
-  case OC_REFRESH_MELT:
-    {
-      unsigned int num_melted_coins;
-      unsigned int num_fresh_coins;
-
-      cmd->details.refresh_melt.noreveal_index = UINT16_MAX;
-      for (num_melted_coins=0;
-           NULL != cmd->details.refresh_melt.melted_coins[num_melted_coins].amount;
-           num_melted_coins++) ;
-      for (num_fresh_coins=0;
-           NULL != cmd->details.refresh_melt.fresh_amounts[num_fresh_coins];
-           num_fresh_coins++) ;
-
-      cmd->details.refresh_melt.fresh_pks
-        = GNUNET_new_array (num_fresh_coins,
-                            const struct TALER_MINT_DenomPublicKey *);
-      {
-        struct TALER_CoinSpendPrivateKeyP melt_privs[num_melted_coins];
-        struct TALER_Amount melt_amounts[num_melted_coins];
-        struct TALER_DenominationSignature melt_sigs[num_melted_coins];
-        struct TALER_MINT_DenomPublicKey melt_pks[num_melted_coins];
-        struct TALER_MINT_DenomPublicKey fresh_pks[num_fresh_coins];
-        unsigned int i;
-
-        for (i=0;i<num_melted_coins;i++)
-        {
-          const struct MeltDetails *md = &cmd->details.refresh_melt.melted_coins[i];
-          ref = find_command (is,
-                              md->coin_ref);
-          GNUNET_assert (NULL != ref);
-          GNUNET_assert (OC_WITHDRAW_SIGN == ref->oc);
-
-          melt_privs[i] = ref->details.reserve_withdraw.coin_priv;
-          if (GNUNET_OK !=
-              TALER_string_to_amount (md->amount,
-                                      &melt_amounts[i]))
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "Failed to parse amount `%s' at %u\n",
-                        md->amount,
-                        is->ip);
-            fail (is);
-            return;
-          }
-          melt_sigs[i] = ref->details.reserve_withdraw.sig;
-          melt_pks[i] = *ref->details.reserve_withdraw.pk;
-        }
-        for (i=0;i<num_fresh_coins;i++)
-        {
-          if (GNUNET_OK !=
-              TALER_string_to_amount (cmd->details.refresh_melt.fresh_amounts[i],
-                                      &amount))
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "Failed to parse amount `%s' at %u\n",
-                        cmd->details.reserve_withdraw.amount,
-                        is->ip);
-            fail (is);
-            return;
-          }
-          cmd->details.refresh_melt.fresh_pks[i]
-            = find_pk (is->keys,
-                       &amount);
-          fresh_pks[i] = *cmd->details.refresh_melt.fresh_pks[i];
-        }
-        cmd->details.refresh_melt.refresh_data
-          = TALER_MINT_refresh_prepare (num_melted_coins,
-                                        melt_privs,
-                                        melt_amounts,
-                                        melt_sigs,
-                                        melt_pks,
-                                        GNUNET_YES,
-                                        num_fresh_coins,
-                                        fresh_pks,
-                                        &cmd->details.refresh_melt.refresh_data_length);
-        if (NULL == cmd->details.refresh_melt.refresh_data)
-        {
-          GNUNET_break (0);
-          fail (is);
-          return;
-        }
-        cmd->details.refresh_melt.rmh
-          = TALER_MINT_refresh_melt (mint,
-                                     cmd->details.refresh_melt.refresh_data_length,
-                                     cmd->details.refresh_melt.refresh_data,
-                                     &melt_cb,
-                                     is);
-        if (NULL == cmd->details.refresh_melt.rmh)
-        {
-          GNUNET_break (0);
-          fail (is);
-          return;
-        }
-      }
-    }
-    trigger_context_task ();
-    return;
-  case OC_REFRESH_REVEAL:
-    ref = find_command (is,
-                        cmd->details.refresh_reveal.melt_ref);
-    cmd->details.refresh_reveal.rrh
-      = TALER_MINT_refresh_reveal (mint,
-                                   ref->details.refresh_melt.refresh_data_length,
-                                   ref->details.refresh_melt.refresh_data,
-                                   ref->details.refresh_melt.noreveal_index,
-                                   &reveal_cb,
-                                   is);
-    if (NULL == cmd->details.refresh_reveal.rrh)
-    {
-      GNUNET_break (0);
-      fail (is);
-      return;
-    }
-    trigger_context_task ();
-    return;
-  case OC_REFRESH_LINK:
-    /* find reveal command */
-    ref = find_command (is,
-                        cmd->details.refresh_link.reveal_ref);
-    /* find melt command */
-    ref = find_command (is,
-                        ref->details.refresh_reveal.melt_ref);
-    /* find reserve_withdraw command */
-    {
-      unsigned int idx;
-      const struct MeltDetails *md;
-      unsigned int num_melted_coins;
-
-      for (num_melted_coins=0;
-           NULL != ref->details.refresh_melt.melted_coins[num_melted_coins].amount;
-           num_melted_coins++) ;
-      idx = cmd->details.refresh_link.coin_idx;
-      GNUNET_assert (idx < num_melted_coins);
-      md = &ref->details.refresh_melt.melted_coins[idx];
-      ref = find_command (is,
-                          md->coin_ref);
-    }
-    GNUNET_assert (OC_WITHDRAW_SIGN == ref->oc);
-    /* finally, use private key from withdraw sign command */
-    cmd->details.refresh_link.rlh
-      = TALER_MINT_refresh_link (mint,
-                                 &ref->details.reserve_withdraw.coin_priv,
-                                 &link_cb,
-                                 is);
-    if (NULL == cmd->details.refresh_link.rlh)
-    {
-      GNUNET_break (0);
-      fail (is);
-      return;
-    }
-    trigger_context_task ();
-    return;
-  case OC_WIRE:
-    cmd->details.wire.wh = TALER_MINT_wire (mint,
-                                            &wire_cb,
-                                            is);
-    trigger_context_task ();
-    return;
-  case OC_WIRE_DEPOSITS:
-    if (NULL != cmd->details.wire_deposits.wtid_ref)
-    {
-      ref = find_command (is,
-                          cmd->details.wire_deposits.wtid_ref);
-      GNUNET_assert (NULL != ref);
-      cmd->details.wire_deposits.wtid = ref->details.deposit_wtid.wtid;
-    }
-    cmd->details.wire_deposits.wdh
-      = TALER_MINT_wire_deposits (mint,
-                                  &cmd->details.wire_deposits.wtid,
-                                  &wire_deposits_cb,
-                                  is);
-    trigger_context_task ();
-    return;
-  case OC_DEPOSIT_WTID:
-    {
-      struct GNUNET_HashCode h_wire;
-      struct GNUNET_HashCode h_contract;
-      json_t *wire;
-      json_t *contract;
-      const struct Command *coin;
-      struct TALER_CoinSpendPublicKeyP coin_pub;
-
-      ref = find_command (is,
-                          cmd->details.deposit_wtid.deposit_ref);
-      GNUNET_assert (NULL != ref);
-      coin = find_command (is,
-                           ref->details.deposit.coin_ref);
-      GNUNET_assert (NULL != coin);
-      switch (coin->oc)
-      {
-      case OC_WITHDRAW_SIGN:
-        GNUNET_CRYPTO_eddsa_key_get_public (&coin->details.reserve_withdraw.coin_priv.eddsa_priv,
-                                            &coin_pub.eddsa_pub);
-        break;
-      case OC_REFRESH_REVEAL:
-        {
-          const struct FreshCoin *fc;
-          unsigned int idx;
-
-          idx = ref->details.deposit.coin_idx;
-          GNUNET_assert (idx < coin->details.refresh_reveal.num_fresh_coins);
-          fc = &coin->details.refresh_reveal.fresh_coins[idx];
-
-          GNUNET_CRYPTO_eddsa_key_get_public (&fc->coin_priv.eddsa_priv,
-                                              &coin_pub.eddsa_pub);
-        }
-        break;
-      default:
-        GNUNET_assert (0);
-      }
-
-      wire = json_loads (ref->details.deposit.wire_details,
-                         JSON_REJECT_DUPLICATES,
-                         NULL);
-      GNUNET_assert (NULL != wire);
-      TALER_hash_json (wire,
-                       &h_wire);
-      json_decref (wire);
-      contract = json_loads (ref->details.deposit.contract,
-                             JSON_REJECT_DUPLICATES,
-                             NULL);
-      GNUNET_assert (NULL != contract);
-      TALER_hash_json (contract,
-                       &h_contract);
-      json_decref (contract);
-      cmd->details.deposit_wtid.dwh
-        = TALER_MINT_deposit_wtid (mint,
-                                   &ref->details.deposit.merchant_priv,
-                                   &h_wire,
-                                   &h_contract,
-                                   &coin_pub,
-                                   ref->details.deposit.transaction_id,
-                                   &deposit_wtid_cb,
-                                   is);
-      trigger_context_task ();
-    }
-    return;
-  default:
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Unknown instruction %d at %u (%s)\n",
-                cmd->oc,
-                is->ip,
-                cmd->label);
-    fail (is);
-    return;
-  }
-}
-
-
-/**
- * Function run when the test terminates (good or bad).
- * Cleans up our state.
- *
- * @param cls the interpreter state.
- * @param tc unused
- */
-static void
-do_shutdown (void *cls,
-             const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
-  struct InterpreterState *is = cls;
-  struct Command *cmd;
-  unsigned int i;
-
-  shutdown_task = NULL;
-  for (i=0;OC_END != (cmd = &is->commands[i])->oc;i++)
-  {
-    switch (cmd->oc)
-    {
-    case OC_END:
-      GNUNET_assert (0);
-      break;
-    case OC_ADMIN_ADD_INCOMING:
-      if (NULL != cmd->details.admin_add_incoming.aih)
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                    "Command %u (%s) did not complete\n",
-                    i,
-                    cmd->label);
-        TALER_MINT_admin_add_incoming_cancel (cmd->details.admin_add_incoming.aih);
-        cmd->details.admin_add_incoming.aih = NULL;
-      }
-      break;
-    case OC_WITHDRAW_STATUS:
-      if (NULL != cmd->details.reserve_status.wsh)
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                    "Command %u (%s) did not complete\n",
-                    i,
-                    cmd->label);
-        TALER_MINT_reserve_status_cancel (cmd->details.reserve_status.wsh);
-        cmd->details.reserve_status.wsh = NULL;
-      }
-      break;
-    case OC_WITHDRAW_SIGN:
-      if (NULL != cmd->details.reserve_withdraw.wsh)
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                    "Command %u (%s) did not complete\n",
-                    i,
-                    cmd->label);
-        TALER_MINT_reserve_withdraw_cancel (cmd->details.reserve_withdraw.wsh);
-        cmd->details.reserve_withdraw.wsh = NULL;
-      }
-      if (NULL != cmd->details.reserve_withdraw.sig.rsa_signature)
-      {
-        GNUNET_CRYPTO_rsa_signature_free (cmd->details.reserve_withdraw.sig.rsa_signature);
-        cmd->details.reserve_withdraw.sig.rsa_signature = NULL;
-      }
-      if (NULL != cmd->details.reserve_withdraw.blinding_key.rsa_blinding_key)
-      {
-        GNUNET_CRYPTO_rsa_blinding_key_free (cmd->details.reserve_withdraw.blinding_key.rsa_blinding_key);
-        cmd->details.reserve_withdraw.blinding_key.rsa_blinding_key = NULL;
-      }
-      break;
-    case OC_DEPOSIT:
-      if (NULL != cmd->details.deposit.dh)
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                    "Command %u (%s) did not complete\n",
-                    i,
-                    cmd->label);
-        TALER_MINT_deposit_cancel (cmd->details.deposit.dh);
-        cmd->details.deposit.dh = NULL;
-      }
-      break;
-    case OC_REFRESH_MELT:
-      if (NULL != cmd->details.refresh_melt.rmh)
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                    "Command %u (%s) did not complete\n",
-                    i,
-                    cmd->label);
-        TALER_MINT_refresh_melt_cancel (cmd->details.refresh_melt.rmh);
-        cmd->details.refresh_melt.rmh = NULL;
-      }
-      GNUNET_free_non_null (cmd->details.refresh_melt.fresh_pks);
-      cmd->details.refresh_melt.fresh_pks = NULL;
-      GNUNET_free_non_null (cmd->details.refresh_melt.refresh_data);
-      cmd->details.refresh_melt.refresh_data = NULL;
-      cmd->details.refresh_melt.refresh_data_length = 0;
-      break;
-    case OC_REFRESH_REVEAL:
-      if (NULL != cmd->details.refresh_reveal.rrh)
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                    "Command %u (%s) did not complete\n",
-                    i,
-                    cmd->label);
-        TALER_MINT_refresh_reveal_cancel (cmd->details.refresh_reveal.rrh);
-        cmd->details.refresh_reveal.rrh = NULL;
-      }
-      {
-        unsigned int j;
-        struct FreshCoin *fresh_coins;
-
-        fresh_coins = cmd->details.refresh_reveal.fresh_coins;
-        for (j=0;j<cmd->details.refresh_reveal.num_fresh_coins;j++)
-          GNUNET_CRYPTO_rsa_signature_free (fresh_coins[j].sig.rsa_signature);
-      }
-      GNUNET_free_non_null (cmd->details.refresh_reveal.fresh_coins);
-      cmd->details.refresh_reveal.fresh_coins = NULL;
-      cmd->details.refresh_reveal.num_fresh_coins = 0;
-      break;
-    case OC_REFRESH_LINK:
-      if (NULL != cmd->details.refresh_link.rlh)
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                    "Command %u (%s) did not complete\n",
-                    i,
-                    cmd->label);
-        TALER_MINT_refresh_link_cancel (cmd->details.refresh_link.rlh);
-        cmd->details.refresh_link.rlh = NULL;
-      }
-      break;
-    case OC_WIRE:
-      if (NULL != cmd->details.wire.wh)
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                    "Command %u (%s) did not complete\n",
-                    i,
-                    cmd->label);
-        TALER_MINT_wire_cancel (cmd->details.wire.wh);
-        cmd->details.wire.wh = NULL;
-      }
-      break;
-    case OC_WIRE_DEPOSITS:
-      if (NULL != cmd->details.wire_deposits.wdh)
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                    "Command %u (%s) did not complete\n",
-                    i,
-                    cmd->label);
-        TALER_MINT_wire_deposits_cancel (cmd->details.wire_deposits.wdh);
-        cmd->details.wire_deposits.wdh = NULL;
-      }
-      break;
-    case OC_DEPOSIT_WTID:
-      if (NULL != cmd->details.deposit_wtid.dwh)
-      {
-        GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                    "Command %u (%s) did not complete\n",
-                    i,
-                    cmd->label);
-        TALER_MINT_deposit_wtid_cancel (cmd->details.deposit_wtid.dwh);
-        cmd->details.deposit_wtid.dwh = NULL;
-      }
-      break;
-    default:
-      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                  "Unknown instruction %d at %u (%s)\n",
-                  cmd->oc,
-                  i,
-                  cmd->label);
-      break;
-    }
-  }
-  if (NULL != is->task)
-  {
-    GNUNET_SCHEDULER_cancel (is->task);
-    is->task = NULL;
-  }
-  GNUNET_free (is);
-  if (NULL != ctx_task)
-  {
-    GNUNET_SCHEDULER_cancel (ctx_task);
-    ctx_task = NULL;
-  }
-  if (NULL != mint)
-  {
-    TALER_MINT_disconnect (mint);
-    mint = NULL;
-  }
-  if (NULL != ctx)
-  {
-    TALER_MINT_fini (ctx);
-    ctx = NULL;
-  }
-}
-
-
-/**
- * Functions of this type are called to provide the retrieved signing and
- * denomination keys of the mint.  No TALER_MINT_*() functions should be called
- * in this callback.
- *
- * @param cls closure
- * @param keys information about keys of the mint
- */
-static void
-cert_cb (void *cls,
-         const struct TALER_MINT_Keys *keys)
-{
-  struct InterpreterState *is = cls;
-
-  /* check that keys is OK */
-#define ERR(cond) do { if(!(cond)) break; GNUNET_break (0); GNUNET_SCHEDULER_shutdown(); return; } while (0)
-  ERR (NULL == keys);
-  ERR (0 == keys->num_sign_keys);
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Read %u signing keys\n",
-              keys->num_sign_keys);
-  ERR (0 == keys->num_denom_keys);
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Read %u denomination keys\n",
-              keys->num_denom_keys);
-#undef ERR
-
-  /* run actual tests via interpreter-loop */
-  is->keys = keys;
-  is->task = GNUNET_SCHEDULER_add_now (&interpreter_run,
-                                       is);
-}
-
-
-/**
- * Task that runs the context's event loop with the GNUnet scheduler.
- *
- * @param cls unused
- * @param tc scheduler context (unused)
- */
-static void
-context_task (void *cls,
-              const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
-  long timeout;
-  int max_fd;
-  fd_set read_fd_set;
-  fd_set write_fd_set;
-  fd_set except_fd_set;
-  struct GNUNET_NETWORK_FDSet *rs;
-  struct GNUNET_NETWORK_FDSet *ws;
-  struct GNUNET_TIME_Relative delay;
-
-  ctx_task = NULL;
-  TALER_MINT_perform (ctx);
-  max_fd = -1;
-  timeout = -1;
-  FD_ZERO (&read_fd_set);
-  FD_ZERO (&write_fd_set);
-  FD_ZERO (&except_fd_set);
-  TALER_MINT_get_select_info (ctx,
-                              &read_fd_set,
-                              &write_fd_set,
-                              &except_fd_set,
-                              &max_fd,
-                              &timeout);
-  if (timeout >= 0)
-    delay = GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_MILLISECONDS,
-                                           timeout);
-  else
-    delay = GNUNET_TIME_UNIT_FOREVER_REL;
-  rs = GNUNET_NETWORK_fdset_create ();
-  GNUNET_NETWORK_fdset_copy_native (rs,
-                                    &read_fd_set,
-                                    max_fd + 1);
-  ws = GNUNET_NETWORK_fdset_create ();
-  GNUNET_NETWORK_fdset_copy_native (ws,
-                                    &write_fd_set,
-                                    max_fd + 1);
-  ctx_task = GNUNET_SCHEDULER_add_select (GNUNET_SCHEDULER_PRIORITY_DEFAULT,
-                                          delay,
-                                          rs,
-                                          ws,
-                                          &context_task,
-                                          cls);
-  GNUNET_NETWORK_fdset_destroy (rs);
-  GNUNET_NETWORK_fdset_destroy (ws);
-}
-
-
-/**
- * Main function that will be run by the scheduler.
- *
- * @param cls closure
- * @param args remaining command-line arguments
- * @param cfgfile name of the configuration file used (for saving, can be NULL!)
- * @param config configuration
- */
-static void
-run (void *cls,
-     const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
-  struct InterpreterState *is;
-  static struct MeltDetails melt_coins_1[] = {
-    { .amount = "EUR:4",
-      .coin_ref = "refresh-withdraw-coin-1" },
-    { NULL, NULL }
-  };
-  static const char *melt_fresh_amounts_1[] = {
-    "EUR:1",
-    "EUR:1",
-    "EUR:1",
-    "EUR:0.1",
-    "EUR:0.1",
-    "EUR:0.1",
-    "EUR:0.1",
-    "EUR:0.1",
-    "EUR:0.1",
-    "EUR:0.1",
-    "EUR:0.1",
-    "EUR:0.01",
-    "EUR:0.01",
-    "EUR:0.01",
-    "EUR:0.01",
-    "EUR:0.01",
-    "EUR:0.01",
-    /* with 0.01 withdraw fees (except for 1ct coins),
-       this totals up to exactly EUR:3.97, and with
-       the 0.03 refresh fee, to EUR:4.0*/
-    NULL
-  };
-  static struct Command commands[] =
-  {
-    /* *************** start of /wire testing ************** */
-
-#if WIRE_TEST
-    { .oc = OC_WIRE,
-      .label = "wire-test",
-      /* /wire/test replies with a 302 redirect */
-      .expected_response_code = MHD_HTTP_FOUND,
-      .details.wire.format = "test" },
-#endif
-#if WIRE_SEPA
-    { .oc = OC_WIRE,
-      .label = "wire-sepa",
-      /* /wire/sepa replies with a 200 redirect */
-      .expected_response_code = MHD_HTTP_OK,
-      .details.wire.format = "sepa" },
-#endif
-    /* *************** end of /wire testing ************** */
-
-#if WIRE_TEST
-    /* None of this works if 'test' is not allowed as we do
-       /admin/add/incoming with format 'test' */
-
-    /* Fill reserve with EUR:5.01, as withdraw fee is 1 ct per config */
-    { .oc = OC_ADMIN_ADD_INCOMING,
-      .label = "create-reserve-1",
-      .expected_response_code = MHD_HTTP_OK,
-      .details.admin_add_incoming.wire = "{ \"type\":\"TEST\", \"bank\":\"source bank\", \"account\":42 }",
-      .details.admin_add_incoming.amount = "EUR:5.01" },
-    /* Withdraw a 5 EUR coin, at fee of 1 ct */
-    { .oc = OC_WITHDRAW_SIGN,
-      .label = "withdraw-coin-1",
-      .expected_response_code = MHD_HTTP_OK,
-      .details.reserve_withdraw.reserve_reference = "create-reserve-1",
-      .details.reserve_withdraw.amount = "EUR:5" },
-    /* Check that deposit and withdraw operation are in history, and
-       that the balance is now at zero */
-    { .oc = OC_WITHDRAW_STATUS,
-      .label = "withdraw-status-1",
-      .expected_response_code = MHD_HTTP_OK,
-      .details.reserve_status.reserve_reference = "create-reserve-1",
-      .details.reserve_status.expected_balance = "EUR:0" },
-    /* Try to deposit the 5 EUR coin (in full) */
-    { .oc = OC_DEPOSIT,
-      .label = "deposit-simple",
-      .expected_response_code = MHD_HTTP_OK,
-      .details.deposit.amount = "EUR:5",
-      .details.deposit.coin_ref = "withdraw-coin-1",
-      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
-      .details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":1 } ] }",
-      .details.deposit.transaction_id = 1 },
-
-    /* Try to overdraw funds ... */
-    { .oc = OC_WITHDRAW_SIGN,
-      .label = "withdraw-coin-2",
-      .expected_response_code = MHD_HTTP_PAYMENT_REQUIRED,
-      .details.reserve_withdraw.reserve_reference = "create-reserve-1",
-      .details.reserve_withdraw.amount = "EUR:5" },
-
-    /* Try to double-spend the 5 EUR coin with different wire details */
-    { .oc = OC_DEPOSIT,
-      .label = "deposit-double-1",
-      .expected_response_code = MHD_HTTP_FORBIDDEN,
-      .details.deposit.amount = "EUR:5",
-      .details.deposit.coin_ref = "withdraw-coin-1",
-      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":43 }",
-      .details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":1 } ] }",
-      .details.deposit.transaction_id = 1 },
-    /* Try to double-spend the 5 EUR coin at the same merchant (but different
-       transaction ID) */
-    { .oc = OC_DEPOSIT,
-      .label = "deposit-double-2",
-      .expected_response_code = MHD_HTTP_FORBIDDEN,
-      .details.deposit.amount = "EUR:5",
-      .details.deposit.coin_ref = "withdraw-coin-1",
-      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
-      .details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":1 } ] }",
-      .details.deposit.transaction_id = 2 },
-    /* Try to double-spend the 5 EUR coin at the same merchant (but different
-       contract) */
-    { .oc = OC_DEPOSIT,
-      .label = "deposit-double-3",
-      .expected_response_code = MHD_HTTP_FORBIDDEN,
-      .details.deposit.amount = "EUR:5",
-      .details.deposit.coin_ref = "withdraw-coin-1",
-      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
-      .details.deposit.contract = "{ \"items\":[{ \"name\":\"ice cream\", \"value\":2 } ] }",
-      .details.deposit.transaction_id = 1 },
-
-    /* ***************** /refresh testing ******************** */
-
-    /* Fill reserve with EUR:5.01, as withdraw fee is 1 ct */
-    { .oc = OC_ADMIN_ADD_INCOMING,
-      .label = "refresh-create-reserve-1",
-      .expected_response_code = MHD_HTTP_OK,
-      .details.admin_add_incoming.wire = "{ \"type\":\"TEST\", \"bank\":\"source bank\", \"account\":424 }",
-      .details.admin_add_incoming.amount = "EUR:5.01" },
-    /* Withdraw a 5 EUR coin, at fee of 1 ct */
-    { .oc = OC_WITHDRAW_SIGN,
-      .label = "refresh-withdraw-coin-1",
-      .expected_response_code = MHD_HTTP_OK,
-      .details.reserve_withdraw.reserve_reference = "refresh-create-reserve-1",
-      .details.reserve_withdraw.amount = "EUR:5" },
-    /* Try to partially spend (deposit) 1 EUR of the 5 EUR coin (in full)
-       (merchant would receive EUR:0.99 due to 1 ct deposit fee) */
-    { .oc = OC_DEPOSIT,
-      .label = "refresh-deposit-partial",
-      .expected_response_code = MHD_HTTP_OK,
-      .details.deposit.amount = "EUR:1",
-      .details.deposit.coin_ref = "refresh-withdraw-coin-1",
-      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
-      .details.deposit.contract = "{ \"items\" : [ { \"name\":\"ice cream\", \"value\":\"EUR:1\" } ] }",
-      .details.deposit.transaction_id = 42421 },
-
-    /* Melt the rest of the coin's value (EUR:4.00 = 3x EUR:1.03 + 7x EUR:0.13) */
-
-    { .oc = OC_REFRESH_MELT,
-      .label = "refresh-melt-1",
-      .expected_response_code = MHD_HTTP_OK,
-      .details.refresh_melt.melted_coins = melt_coins_1,
-      .details.refresh_melt.fresh_amounts = melt_fresh_amounts_1 },
-
-
-    /* Complete (successful) melt operation, and withdraw the coins */
-    { .oc = OC_REFRESH_REVEAL,
-      .label = "refresh-reveal-1",
-      .expected_response_code = MHD_HTTP_OK,
-      .details.refresh_reveal.melt_ref = "refresh-melt-1" },
-
-    /* Test that /refresh/link works */
-    { .oc = OC_REFRESH_LINK,
-      .label = "refresh-link-1",
-      .expected_response_code = MHD_HTTP_OK,
-      .details.refresh_link.reveal_ref = "refresh-reveal-1" },
-
-
-    /* Test successfully spending coins from the refresh operation:
-       first EUR:1 */
-    { .oc = OC_DEPOSIT,
-      .label = "refresh-deposit-refreshed-1a",
-      .expected_response_code = MHD_HTTP_OK,
-      .details.deposit.amount = "EUR:1",
-      .details.deposit.coin_ref = "refresh-reveal-1",
-      .details.deposit.coin_idx = 0,
-      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
-      .details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":3 } ] }",
-      .details.deposit.transaction_id = 2 },
-
-    /* Test successfully spending coins from the refresh operation:
-       finally EUR:0.1 */
-    { .oc = OC_DEPOSIT,
-      .label = "refresh-deposit-refreshed-1b",
-      .expected_response_code = MHD_HTTP_OK,
-      .details.deposit.amount = "EUR:0.1",
-      .details.deposit.coin_ref = "refresh-reveal-1",
-      .details.deposit.coin_idx = 4,
-      .details.deposit.wire_details = "{ \"type\":\"TEST\", \"bank\":\"dest bank\", \"account\":42 }",
-      .details.deposit.contract = "{ \"items\": [ { \"name\":\"ice cream\", \"value\":3 } ] }",
-      .details.deposit.transaction_id = 2 },
-
-    /* Test running a failing melt operation (same operation again must fail) */
-    { .oc = OC_REFRESH_MELT,
-      .label = "refresh-melt-failing",
-      .expected_response_code = MHD_HTTP_FORBIDDEN,
-      .details.refresh_melt.melted_coins = melt_coins_1,
-      .details.refresh_melt.fresh_amounts = melt_fresh_amounts_1 },
-
-    // FIXME: also test with coin that was already melted
-    // (signature differs from coin that was deposited...)
-    /* *************** end of /refresh testing ************** */
-
-    /* ************** Test tracking API ******************** */
-    /* Try resolving a deposit's WTID, as we never triggered
-       execution of transactions, the answer should be that
-       the mint knows about the deposit, but has no WTID yet. */
-    { .oc = OC_DEPOSIT_WTID,
-      .label = "deposit-wtid-found",
-      .expected_response_code = MHD_HTTP_ACCEPTED,
-      .details.deposit_wtid.deposit_ref = "deposit-simple" },
-    /* Try resolving a deposit's WTID for a failed deposit.
-       As the deposit failed, the answer should be that
-       the mint does NOT know about the deposit. */
-    { .oc = OC_DEPOSIT_WTID,
-      .label = "deposit-wtid-failing",
-      .expected_response_code = MHD_HTTP_NOT_FOUND,
-      .details.deposit_wtid.deposit_ref = "deposit-double-2" },
-    /* Try resolving an undefined (all zeros) WTID; this
-       should fail as obviously the mint didn't use that
-       WTID value for any transaction. */
-    { .oc = OC_WIRE_DEPOSITS,
-      .label = "wire-deposit-failing",
-      .expected_response_code = MHD_HTTP_NOT_FOUND },
-
-    /* TODO: trigger aggregation logic and then check the
-       cases where tracking succeeds! */
-
-    /* ************** End of tracking API testing************* */
-
-
-#endif
-
-    { .oc = OC_END }
-  };
-
-  is = GNUNET_new (struct InterpreterState);
-  is->commands = commands;
-
-  ctx = TALER_MINT_init ();
-  GNUNET_assert (NULL != ctx);
-  ctx_task = GNUNET_SCHEDULER_add_now (&context_task,
-                                       ctx);
-  mint = TALER_MINT_connect (ctx,
-                             "http://localhost:8081",
-                             &cert_cb, is,
-                             TALER_MINT_OPTION_END);
-  GNUNET_assert (NULL != mint);
-  shutdown_task
-    = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_relative_multiply
-                                    (GNUNET_TIME_UNIT_SECONDS, 150),
-                                    &do_shutdown, is);
-}
-
-
-/**
- * Main function for the testcase for the mint API.
- *
- * @param argc expected to be 1
- * @param argv expected to only contain the program name
- */
-int
-main (int argc,
-      char * const *argv)
-{
-  struct GNUNET_OS_Process *proc;
-  struct GNUNET_OS_Process *mintd;
-
-  GNUNET_log_setup ("test-mint-api",
-                    "WARNING",
-                    NULL);
-  proc = GNUNET_OS_start_process (GNUNET_NO,
-                                  GNUNET_OS_INHERIT_STD_ALL,
-                                  NULL, NULL, NULL,
-                                  "taler-mint-keyup",
-                                  "taler-mint-keyup",
-                                  "-d", "test-mint-home",
-                                  "-m", "test-mint-home/master.priv",
-                                  NULL);
-  GNUNET_OS_process_wait (proc);
-  GNUNET_OS_process_destroy (proc);
-  mintd = GNUNET_OS_start_process (GNUNET_NO,
-                                   GNUNET_OS_INHERIT_STD_ALL,
-                                   NULL, NULL, NULL,
-                                   "taler-mint-httpd",
-                                   "taler-mint-httpd",
-                                   "-d", "test-mint-home",
-                                   NULL);
-  /* give child time to start and bind against the socket */
-  fprintf (stderr, "Waiting for taler-mint-httpd to be ready");
-  do
-    {
-      fprintf (stderr, ".");
-      sleep (1);
-    }
-  while (0 != system ("wget -q -t 1 -T 1 http://127.0.0.1:8081/keys -o /dev/null -O /dev/null"));
-  fprintf (stderr, "\n");
-  result = GNUNET_SYSERR;
-  GNUNET_SCHEDULER_run (&run, NULL);
-  GNUNET_OS_process_kill (mintd,
-                          SIGTERM);
-  GNUNET_OS_process_wait (mintd);
-  GNUNET_OS_process_destroy (mintd);
-  return (GNUNET_OK == result) ? 0 : 1;
-}
-
-/* end of test_mint_api.c */
diff --git a/src/mint-tools/Makefile.am b/src/mint-tools/Makefile.am
deleted file mode 100644
index 94b8fb391..000000000
--- a/src/mint-tools/Makefile.am
+++ /dev/null
@@ -1,81 +0,0 @@
-# This Makefile.am is in the public domain
-AM_CPPFLAGS = -I$(top_srcdir)/src/include
-
-if USE_COVERAGE
-  AM_CFLAGS = --coverage -O0
-  XLIB = -lgcov
-endif
-
-bin_PROGRAMS = \
-  taler-auditor-sign \
-  taler-mint-keyup \
-  taler-mint-keycheck \
-  taler-mint-reservemod \
-  taler-mint-sepa \
-  taler-mint-dbinit
-
-taler_mint_keyup_SOURCES = \
-  taler-mint-keyup.c
-taler_mint_keyup_LDADD = \
-  $(LIBGCRYPT_LIBS) \
-  $(top_builddir)/src/util/libtalerutil.la \
-  $(top_builddir)/src/pq/libtalerpq.la \
-  $(top_builddir)/src/mintdb/libtalermintdb.la \
-  -lgnunetutil $(XLIB)
-taler_mint_keyup_LDFLAGS = $(POSTGRESQL_LDFLAGS)
-
-taler_auditor_sign_SOURCES = \
-  taler-auditor-sign.c
-taler_auditor_sign_LDADD = \
-  $(LIBGCRYPT_LIBS) \
-  $(top_builddir)/src/util/libtalerutil.la \
-  $(top_builddir)/src/mintdb/libtalermintdb.la \
-  -lgnunetutil $(XLIB)
-
-
-taler_mint_sepa_SOURCES = \
-  taler-mint-sepa.c
-taler_mint_sepa_LDADD = \
-  $(LIBGCRYPT_LIBS) \
-  $(top_builddir)/src/util/libtalerutil.la \
-  -lgnunetutil -ljansson $(XLIB)
-taler_mint_sepa_LDFLAGS = $(POSTGRESQL_LDFLAGS)
-
-taler_mint_keycheck_SOURCES = \
-  taler-mint-keycheck.c
-taler_mint_keycheck_LDADD = \
-  $(LIBGCRYPT_LIBS) \
-  $(top_builddir)/src/util/libtalerutil.la \
-  $(top_builddir)/src/mintdb/libtalermintdb.la \
-  -lgnunetutil  $(XLIB)
-taler_mint_keycheck_LDFLAGS = $(POSTGRESQL_LDFLAGS)
-
-taler_mint_reservemod_SOURCES = \
-  taler-mint-reservemod.c
-taler_mint_reservemod_LDADD = \
-  $(LIBGCRYPT_LIBS) \
-  $(top_builddir)/src/util/libtalerutil.la \
-  $(top_builddir)/src/pq/libtalerpq.la \
-  $(top_builddir)/src/mintdb/libtalermintdb.la \
-  -lgnunetutil -ljansson $(XLIB)
-taler_mint_reservemod_LDFLAGS = \
-  $(POSTGRESQL_LDFLAGS)
-taler_mint_reservemod_CPPFLAGS = \
-  -I$(top_srcdir)/src/include \
-  -I$(top_srcdir)/src/pq/ \
-  $(POSTGRESQL_CPPFLAGS)
-
-taler_mint_dbinit_SOURCES = \
-  taler-mint-dbinit.c
-taler_mint_dbinit_LDADD = \
-  $(LIBGCRYPT_LIBS) \
-  $(top_builddir)/src/util/libtalerutil.la \
-  $(top_builddir)/src/pq/libtalerpq.la \
-  $(top_builddir)/src/mintdb/libtalermintdb.la \
-  -lgnunetutil  $(XLIB)
-taler_mint_dbinit_LDFLAGS = \
-  $(POSTGRESQL_LDFLAGS)
-taler_mint_dbinit_CPPFLAGS = \
-  -I$(top_srcdir)/src/include \
-  -I$(top_srcdir)/src/pq/ \
-  $(POSTGRESQL_CPPFLAGS)
diff --git a/src/mint-tools/taler-auditor-sign.c b/src/mint-tools/taler-auditor-sign.c
deleted file mode 100644
index 7e6d3b12a..000000000
--- a/src/mint-tools/taler-auditor-sign.c
+++ /dev/null
@@ -1,321 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-auditor-sign.c
- * @brief Tool used by the auditor to sign the mint's master key and the
- *        denomination key(s).
- * @author Christian Grothoff
- */
-#include <platform.h>
-#include "taler_mintdb_lib.h"
-
-
-/**
- * Are we running in verbose mode?
- */
-static int verbose;
-
-/**
- * Filename of the auditor's private key.
- */
-static char *auditor_key_file;
-
-/**
- * Mint's public key (in Crockford base32 encoding).
- */
-static char *mint_public_key;
-
-/**
- * File with the Mint's denomination keys to sign, itself
- * signed by the Mint's public key.
- */
-static char *mint_request_file;
-
-/**
- * Where should we write the auditor's signature?
- */
-static char *output_file;
-
-/**
- * Master public key of the mint.
- */
-static struct TALER_MasterPublicKeyP master_public_key;
-
-
-/**
- * Print denomination key details for diagnostics.
- *
- * @param dk denomination key to print
- */
-static void
-print_dk (const struct TALER_DenominationKeyValidityPS *dk)
-{
-  struct TALER_Amount a;
-  char *s;
-
-  fprintf (stdout,
-           "Denomination key hash: %s\n",
-           GNUNET_h2s_full (&dk->denom_hash));
-  TALER_amount_ntoh (&a,
-                     &dk->value);
-  fprintf (stdout,
-           "Value: %s\n",
-           s = TALER_amount_to_string (&a));
-  GNUNET_free (s);
-    TALER_amount_ntoh (&a,
-                       &dk->fee_withdraw);
-  fprintf (stdout,
-           "Withdraw fee: %s\n",
-           s = TALER_amount_to_string (&a));
-  GNUNET_free (s);
-    TALER_amount_ntoh (&a,
-                       &dk->fee_deposit);
-  fprintf (stdout,
-           "Deposit fee: %s\n",
-           s = TALER_amount_to_string (&a));
-  GNUNET_free (s);
-  TALER_amount_ntoh (&a,
-                     &dk->fee_refresh);
-  fprintf (stdout,
-           "Refresh fee: %s\n",
-           s = TALER_amount_to_string (&a));
-  GNUNET_free (s);
-
-  fprintf (stdout,
-           "Validity start time: %s\n",
-           GNUNET_STRINGS_absolute_time_to_string (GNUNET_TIME_absolute_ntoh (dk->start)));
-  fprintf (stdout,
-           "Withdraw end time: %s\n",
-           GNUNET_STRINGS_absolute_time_to_string (GNUNET_TIME_absolute_ntoh (dk->expire_withdraw)));
-  fprintf (stdout,
-           "Deposit end time: %s\n",
-           GNUNET_STRINGS_absolute_time_to_string (GNUNET_TIME_absolute_ntoh (dk->expire_spend)));
-  fprintf (stdout,
-           "Legal dispute end time: %s\n",
-           GNUNET_STRINGS_absolute_time_to_string (GNUNET_TIME_absolute_ntoh (dk->expire_legal)));
-
-  fprintf (stdout,
-           "\n");
-}
-
-
-/**
- * The main function of the taler-auditor-sign tool.  This tool is used
- * to sign a mint's master and denomination keys, affirming that the
- * auditor is aware of them and will validate the mint's database with
- * respect to these keys.
- *
- * @param argc number of arguments from the command line
- * @param argv command line arguments
- * @return 0 ok, 1 on error
- */
-int
-main (int argc,
-      char *const *argv)
-{
-  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
-    {'a', "auditor-key", "FILE",
-     "file containing the private key of the auditor", 1,
-     &GNUNET_GETOPT_set_filename, &auditor_key_file},
-    TALER_GETOPT_OPTION_HELP ("Private key of the auditor to use for signing"),
-    {'m', "mint-key", "KEY",
-     "public key of the mint (Crockford base32 encoded)", 1,
-     &GNUNET_GETOPT_set_filename, &mint_public_key},
-    {'r', "mint-request", "FILE",
-     "set of keys the mint requested the auditor to sign", 1,
-     &GNUNET_GETOPT_set_string, &mint_request_file},
-    {'o', "output", "FILE",
-     "where to write our signature", 1,
-     &GNUNET_GETOPT_set_string, &output_file},
-    GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
-    GNUNET_GETOPT_OPTION_VERBOSE (&verbose),
-    GNUNET_GETOPT_OPTION_END
-  };
-  struct GNUNET_CRYPTO_EddsaPrivateKey *eddsa_priv;
-  struct TALER_AuditorSignatureP *sigs;
-  struct TALER_AuditorPublicKeyP apub;
-  struct GNUNET_DISK_FileHandle *fh;
-  struct TALER_DenominationKeyValidityPS *dks;
-  unsigned int dks_len;
-  struct TALER_MintKeyValidityPS kv;
-  off_t in_size;
-  unsigned int i;
-
-  GNUNET_assert (GNUNET_OK ==
-                 GNUNET_log_setup ("taler-mint-keyup",
-                                   "WARNING",
-                                   NULL));
-  if (GNUNET_GETOPT_run ("taler-mint-keyup",
-                         options,
-                         argc, argv) < 0)
-    return 1;
-  if (NULL == auditor_key_file)
-  {
-    fprintf (stderr,
-             "Auditor key file not given\n");
-    return 1;
-  }
-  eddsa_priv = GNUNET_CRYPTO_eddsa_key_create_from_file (auditor_key_file);
-  if (NULL == eddsa_priv)
-  {
-    fprintf (stderr,
-             "Failed to initialize auditor key from file `%s'\n",
-             auditor_key_file);
-    return 1;
-  }
-  GNUNET_CRYPTO_eddsa_key_get_public (eddsa_priv,
-                                      &apub.eddsa_pub);
-  if (NULL == mint_public_key)
-  {
-    fprintf (stderr,
-             "Mint public key not given\n");
-    GNUNET_free (eddsa_priv);
-    return 1;
-  }
-  if (GNUNET_OK !=
-      GNUNET_STRINGS_string_to_data (mint_public_key,
-                                     strlen (mint_public_key),
-                                     &master_public_key,
-                                     sizeof (master_public_key)))
-  {
-    fprintf (stderr,
-             "Public key `%s' malformed\n",
-             mint_public_key);
-    GNUNET_free (eddsa_priv);
-    return 1;
-  }
-  if (NULL == mint_request_file)
-  {
-    fprintf (stderr,
-             "Mint signing request not given\n");
-    GNUNET_free (eddsa_priv);
-    return 1;
-  }
-  fh = GNUNET_DISK_file_open (mint_request_file,
-                              GNUNET_DISK_OPEN_READ,
-                              GNUNET_DISK_PERM_NONE);
-  if (NULL == fh)
-  {
-    fprintf (stderr,
-             "Failed to open file `%s': %s\n",
-             mint_request_file,
-             STRERROR (errno));
-    GNUNET_free (eddsa_priv);
-    return 1;
-  }
-  if (GNUNET_OK !=
-      GNUNET_DISK_file_handle_size (fh,
-                                    &in_size))
-  {
-    fprintf (stderr,
-             "Failed to obtain input file size `%s': %s\n",
-             mint_request_file,
-             STRERROR (errno));
-    GNUNET_DISK_file_close (fh);
-    GNUNET_free (eddsa_priv);
-    return 1;
-  }
-  if (0 != (in_size % sizeof (struct TALER_DenominationKeyValidityPS)))
-  {
-    fprintf (stderr,
-             "Input file size of file `%s' is invalid\n",
-             mint_request_file);
-    GNUNET_DISK_file_close (fh);
-    GNUNET_free (eddsa_priv);
-    return 1;
-  }
-  dks_len = in_size / sizeof (struct TALER_DenominationKeyValidityPS);
-  kv.purpose.purpose = htonl (TALER_SIGNATURE_AUDITOR_MINT_KEYS);
-  kv.purpose.size = htonl (sizeof (struct TALER_MintKeyValidityPS));
-  kv.master = master_public_key;
-  dks = GNUNET_new_array (dks_len,
-                          struct TALER_DenominationKeyValidityPS);
-  sigs = GNUNET_new_array (dks_len,
-                           struct TALER_AuditorSignatureP);
-  if (in_size !=
-      GNUNET_DISK_file_read (fh,
-                             dks,
-                             in_size))
-  {
-    fprintf (stderr,
-             "Failed to read input file `%s': %s\n",
-             mint_request_file,
-             STRERROR (errno));
-    GNUNET_DISK_file_close (fh);
-    GNUNET_free (sigs);
-    GNUNET_free (dks);
-    GNUNET_free (eddsa_priv);
-    return 1;
-  }
-  GNUNET_DISK_file_close (fh);
-  for (i=0;i<dks_len;i++)
-  {
-    struct TALER_DenominationKeyValidityPS *dk = &dks[i];
-
-    if (verbose)
-      print_dk (dk);
-    kv.start = dk->start;
-    kv.expire_withdraw = dk->expire_withdraw;
-    kv.expire_spend = dk->expire_spend;
-    kv.expire_legal = dk->expire_legal;
-    kv.value = dk->value;
-    kv.fee_withdraw = dk->fee_withdraw;
-    kv.fee_deposit = dk->fee_deposit;
-    kv.fee_refresh = dk->fee_refresh;
-    kv.denom_hash = dk->denom_hash;
-
-    /* Finally sign ... */
-    GNUNET_CRYPTO_eddsa_sign (eddsa_priv,
-                              &kv.purpose,
-                              &sigs[i].eddsa_sig);
-
-
-  }
-
-  if (NULL == output_file)
-  {
-    fprintf (stderr,
-             "Output file not given\n");
-    GNUNET_free (dks);
-    GNUNET_free (sigs);
-    GNUNET_free (eddsa_priv);
-    return 1;
-  }
-
-  /* write result to disk */
-  if (GNUNET_OK !=
-      TALER_MINTDB_auditor_write (output_file,
-                                  &apub,
-                                  sigs,
-                                  &master_public_key,
-                                  dks_len,
-                                  dks))
-  {
-    fprintf (stderr,
-             "Failed to write to file `%s': %s\n",
-             output_file,
-             STRERROR (errno));
-    GNUNET_free (sigs);
-    GNUNET_free (dks);
-    return 1;
-  }
-  GNUNET_free (sigs);
-  GNUNET_free (dks);
-  GNUNET_free (eddsa_priv);
-  return 0;
-}
-
-/* end of taler-auditor-sign.c */
diff --git a/src/mint-tools/taler-mint-dbinit.c b/src/mint-tools/taler-mint-dbinit.c
deleted file mode 100644
index 2d9f77764..000000000
--- a/src/mint-tools/taler-mint-dbinit.c
+++ /dev/null
@@ -1,105 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint-tools/taler-mint-dbinit.c
- * @brief Create tables for the mint database.
- * @author Florian Dold
- */
-#include "platform.h"
-#include <gnunet/gnunet_util_lib.h>
-#include <libpq-fe.h>
-#include "taler_mintdb_plugin.h"
-
-/**
- * Mint directory with the keys.
- */
-static char *mint_base_dir;
-
-/**
- * Our configuration.
- */
-static struct GNUNET_CONFIGURATION_Handle *cfg;
-
-/**
- * Our DB plugin.
- */
-static struct TALER_MINTDB_Plugin *plugin;
-
-
-/**
- * The main function of the database initialization tool.
- * Used to initialize the Taler Mint's database.
- *
- * @param argc number of arguments from the command line
- * @param argv command line arguments
- * @return 0 ok, 1 on error
- */
-int
-main (int argc,
-      char *const *argv)
-{
-  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
-    {'d', "mint-dir", "DIR",
-     "mint directory", 1,
-     &GNUNET_GETOPT_set_filename, &mint_base_dir},
-    GNUNET_GETOPT_OPTION_HELP ("Initialize Taler Mint database"),
-    GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
-    GNUNET_GETOPT_OPTION_END
-  };
-
-  if (GNUNET_GETOPT_run ("taler-mint-dbinit",
-                         options,
-                         argc, argv) < 0)
-    return 1;
-
-  GNUNET_assert (GNUNET_OK ==
-                 GNUNET_log_setup ("taler-mint-dbinit",
-                                   "INFO",
-                                   NULL));
-  if (NULL == mint_base_dir)
-  {
-    fprintf (stderr,
-             "Mint base directory not given.\n");
-    return 1;
-  }
-  cfg = TALER_config_load (mint_base_dir);
-  if (NULL == cfg)
-  {
-    fprintf (stderr,
-             "Failed to load mint configuration.\n");
-    return 1;
-  }
-  if (NULL ==
-      (plugin = TALER_MINTDB_plugin_load (cfg)))
-  {
-    fprintf (stderr,
-             "Failed to initialize database plugin.\n");
-    return 1;
-  }
-  if (GNUNET_OK !=
-      plugin->create_tables (plugin->cls,
-                             GNUNET_NO))
-  {
-    fprintf (stderr,
-             "Failed to initialize database.\n");
-    TALER_MINTDB_plugin_unload (plugin);
-    return 1;
-  }
-  TALER_MINTDB_plugin_unload (plugin);
-  return 0;
-}
-
-/* end of taler-mint-dbinit.c */
diff --git a/src/mint-tools/taler-mint-keycheck.c b/src/mint-tools/taler-mint-keycheck.c
deleted file mode 100644
index 4fa2707f8..000000000
--- a/src/mint-tools/taler-mint-keycheck.c
+++ /dev/null
@@ -1,247 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-keycheck.c
- * @brief Check mint keys for validity.  Reads the signing and denomination
- *        keys from the mint directory and checks to make sure they are
- *        well-formed.  This is purely a diagnostic tool.
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#include <platform.h>
-#include <gnunet/gnunet_util_lib.h>
-#include "taler_mintdb_lib.h"
-
-/**
- * Mint directory with the keys.
- */
-static char *mint_directory;
-
-/**
- * Our configuration.
- */
-static struct GNUNET_CONFIGURATION_Handle *kcfg;
-
-
-/**
- * Function called on each signing key.
- *
- * @param cls closure (NULL)
- * @param filename name of the file the key came from
- * @param ski the sign key
- * @return #GNUNET_OK to continue to iterate,
- *  #GNUNET_NO to stop iteration with no error,
- *  #GNUNET_SYSERR to abort iteration with error!
- */
-static int
-signkeys_iter (void *cls,
-               const char *filename,
-               const struct TALER_MINTDB_PrivateSigningKeyInformationP *ski)
-{
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Iterating over key `%s' for start time %s\n",
-              filename,
-              GNUNET_STRINGS_absolute_time_to_string
-              (GNUNET_TIME_absolute_ntoh (ski->issue.start)));
-
-  if (ntohl (ski->issue.purpose.size) !=
-      (sizeof (struct TALER_MintSigningKeyValidityPS) -
-       offsetof (struct TALER_MintSigningKeyValidityPS,
-                 purpose)))
-  {
-    fprintf (stderr,
-             "Signing key `%s' has invalid purpose size\n",
-             filename);
-    return GNUNET_SYSERR;
-  }
-  if ( (0 != GNUNET_TIME_absolute_ntoh (ski->issue.start).abs_value_us % 1000000) ||
-       (0 != GNUNET_TIME_absolute_ntoh (ski->issue.expire).abs_value_us % 1000000) ||
-       (0 != GNUNET_TIME_absolute_ntoh (ski->issue.end).abs_value_us % 1000000) )
-  {
-    fprintf (stderr,
-             "Timestamps are not multiples of a round second\n");
-    return GNUNET_SYSERR;
-  }
-
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MASTER_SIGNING_KEY_VALIDITY,
-                                  &ski->issue.purpose,
-                                  &ski->issue.signature.eddsa_signature,
-                                  &ski->issue.master_public_key.eddsa_pub))
-  {
-    fprintf (stderr,
-             "Signing key `%s' has invalid signature\n",
-             filename);
-    return GNUNET_SYSERR;
-  }
-  printf ("Signing key `%s' valid\n",
-          filename);
-  return GNUNET_OK;
-}
-
-
-/**
- * Check signing keys.
- *
- * @return #GNUNET_OK if the keys are OK
- *         #GNUNET_NO if not
- */
-static int
-mint_signkeys_check ()
-{
-  if (0 > TALER_MINTDB_signing_keys_iterate (mint_directory,
-                                       &signkeys_iter,
-                                       NULL))
-    return GNUNET_NO;
-  return GNUNET_OK;
-}
-
-
-/**
- * Function called on each denomination key.
- *
- * @param cls closure (NULL)
- * @param dki the denomination key
- * @param alias coin alias
- * @return #GNUNET_OK to continue to iterate,
- *  #GNUNET_NO to stop iteration with no error,
- *  #GNUNET_SYSERR to abort iteration with error!
- */
-static int
-denomkeys_iter (void *cls,
-                const char *alias,
-                const struct TALER_MINTDB_DenominationKeyIssueInformation *dki)
-{
-  struct GNUNET_HashCode hc;
-
-  if (ntohl (dki->issue.properties.purpose.size) !=
-      sizeof (struct TALER_DenominationKeyValidityPS))
-  {
-    fprintf (stderr,
-             "Denomination key for `%s' has invalid purpose size\n",
-             alias);
-    return GNUNET_SYSERR;
-  }
-
-  if ( (0 != GNUNET_TIME_absolute_ntoh (dki->issue.properties.start).abs_value_us % 1000000) ||
-       (0 != GNUNET_TIME_absolute_ntoh (dki->issue.properties.expire_withdraw).abs_value_us % 1000000) ||
-       (0 != GNUNET_TIME_absolute_ntoh (dki->issue.properties.expire_legal).abs_value_us % 1000000) ||
-       (0 != GNUNET_TIME_absolute_ntoh (dki->issue.properties.expire_spend).abs_value_us % 1000000) )
-  {
-    fprintf (stderr,
-             "Timestamps are not multiples of a round second\n");
-    return GNUNET_SYSERR;
-  }
-
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MASTER_DENOMINATION_KEY_VALIDITY,
-                                  &dki->issue.properties.purpose,
-                                  &dki->issue.signature.eddsa_signature,
-                                  &dki->issue.properties.master.eddsa_pub))
-  {
-    fprintf (stderr,
-             "Denomination key for `%s' has invalid signature\n",
-             alias);
-    return GNUNET_SYSERR;
-  }
-  GNUNET_CRYPTO_rsa_public_key_hash (dki->denom_pub.rsa_public_key,
-                                     &hc);
-  if (0 != memcmp (&hc,
-                   &dki->issue.properties.denom_hash,
-                   sizeof (struct GNUNET_HashCode)))
-  {
-    fprintf (stderr,
-             "Public key for `%s' does not match signature\n",
-             alias);
-    return GNUNET_SYSERR;
-  }
-  printf ("Denomination key `%s' is valid\n",
-          alias);
-
-  return GNUNET_OK;
-}
-
-
-/**
- * Check denomination keys.
- *
- * @return #GNUNET_OK if the keys are OK
- *         #GNUNET_NO if not
- */
-static int
-mint_denomkeys_check ()
-{
-  if (0 > TALER_MINTDB_denomination_keys_iterate (mint_directory,
-                                                  &denomkeys_iter,
-                                                  NULL))
-    return GNUNET_NO;
-  return GNUNET_OK;
-}
-
-
-/**
- * The main function of the keyup tool
- *
- * @param argc number of arguments from the command line
- * @param argv command line arguments
- * @return 0 ok, 1 on error
- */
-int
-main (int argc, char *const *argv)
-{
-  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
-    GNUNET_GETOPT_OPTION_HELP ("gnunet-mint-keycheck OPTIONS"),
-    {'d', "directory", "DIRECTORY",
-     "mint directory with keys to check", 1,
-     &GNUNET_GETOPT_set_filename, &mint_directory},
-    GNUNET_GETOPT_OPTION_END
-  };
-
-  GNUNET_assert (GNUNET_OK ==
-                 GNUNET_log_setup ("taler-mint-keycheck",
-                                   "WARNING",
-                                   NULL));
-
-  if (GNUNET_GETOPT_run ("taler-mint-keycheck",
-                         options,
-                         argc, argv) < 0)
-    return 1;
-  if (NULL == mint_directory)
-  {
-    fprintf (stderr,
-             "Mint directory not given\n");
-    return 1;
-  }
-
-  kcfg = TALER_config_load (mint_directory);
-  if (NULL == kcfg)
-  {
-    fprintf (stderr,
-             "Failed to load mint configuration\n");
-    return 1;
-  }
-  if ( (GNUNET_OK != mint_signkeys_check ()) ||
-       (GNUNET_OK != mint_denomkeys_check ()) )
-  {
-    GNUNET_CONFIGURATION_destroy (kcfg);
-    return 1;
-  }
-  GNUNET_CONFIGURATION_destroy (kcfg);
-  return 0;
-}
-
-/* end of taler-mint-keycheck.c */
diff --git a/src/mint-tools/taler-mint-keyup.c b/src/mint-tools/taler-mint-keyup.c
deleted file mode 100644
index b82554b94..000000000
--- a/src/mint-tools/taler-mint-keyup.c
+++ /dev/null
@@ -1,1039 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-keyup.c
- * @brief Update the mint's keys for coins and signatures,
- *        using the mint's offline master key.
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#include <platform.h>
-#include "taler_mintdb_lib.h"
-
-/**
- * When generating filenames from a cryptographic hash, we do not use
- * all 512 bits but cut off after this number of characters (in
- * base32-encoding).  Base32 is 5 bit per character, and given that we
- * have very few coin types we hash, at 100 bits the chance of
- * collision (by accident over tiny set -- birthday paradox does not
- * apply here!) is negligible.
- */
-#define HASH_CUTOFF 20
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * Struct with all of the key information for a kind of coin.  Hashed
- * to generate a unique directory name per coin type.
- */
-struct CoinTypeNBOP
-{
-  /**
-   * How long are the signatures legally valid?
-   */
-  struct GNUNET_TIME_RelativeNBO duration_legal;
-
-  /**
-   * How long can the coin be spend?
-   */
-  struct GNUNET_TIME_RelativeNBO duration_spend;
-
-  /**
-   * How long can the coin be withdrawn (generated)?
-   */
-  struct GNUNET_TIME_RelativeNBO duration_withdraw;
-
-  /**
-   * What is the value of the coin?
-   */
-  struct TALER_AmountNBO value;
-
-  /**
-   * What is the fee charged for withdrawl?
-   */
-  struct TALER_AmountNBO fee_withdraw;
-
-  /**
-   * What is the fee charged for deposits?
-   */
-  struct TALER_AmountNBO fee_deposit;
-
-  /**
-   * What is the fee charged for melting?
-   */
-  struct TALER_AmountNBO fee_refresh;
-
-  /**
-   * Key size in NBO.
-   */
-  uint32_t rsa_keysize;
-};
-
-GNUNET_NETWORK_STRUCT_END
-
-/**
- * Set of all of the parameters that chracterize a coin.
- */
-struct CoinTypeParams
-{
-
-  /**
-   * How long are the signatures legally valid?  Should be
-   * significantly larger than @e duration_spend (i.e. years).
-   */
-  struct GNUNET_TIME_Relative duration_legal;
-
-
-  /**
-   * How long can the coin be spend?  Should be significantly
-   * larger than @e duration_withdraw (i.e. years).
-   */
-  struct GNUNET_TIME_Relative duration_spend;
-
-  /**
-   * How long can the coin be withdrawn (generated)?  Should be small
-   * enough to limit how many coins will be signed into existence with
-   * the same key, but large enough to still provide a reasonable
-   * anonymity set.
-   */
-  struct GNUNET_TIME_Relative duration_withdraw;
-
-  /**
-   * How much should coin creation (@e duration_withdraw) duration
-   * overlap with the next coin?  Basically, the starting time of two
-   * coins is always @e duration_withdraw - @e duration_overlap apart.
-   */
-  struct GNUNET_TIME_Relative duration_overlap;
-
-  /**
-   * What is the value of the coin?
-   */
-  struct TALER_Amount value;
-
-  /**
-   * What is the fee charged for withdrawl?
-   */
-  struct TALER_Amount fee_withdraw;
-
-  /**
-   * What is the fee charged for deposits?
-   */
-  struct TALER_Amount fee_deposit;
-
-  /**
-   * What is the fee charged for melting?
-   */
-  struct TALER_Amount fee_refresh;
-
-  /**
-   * Time at which this coin is supposed to become valid.
-   */
-  struct GNUNET_TIME_Absolute anchor;
-
-  /**
-   * Length of the RSA key in bits.
-   */
-  uint32_t rsa_keysize;
-};
-
-
-/**
- * Filename of the master private key.
- */
-static char *masterkeyfile;
-
-/**
- * Filename where to write denomination key signing
- * requests for the auditor (optional, can be NULL).
- */
-static char *auditorrequestfile;
-
-/**
- * Handle for writing the output for the auditor.
- */
-static FILE *auditor_output_file;
-
-/**
- * Director of the mint, containing the keys.
- */
-static char *mint_directory;
-
-/**
- * Time to pretend when the key update is executed.
- */
-static char *pretend_time_str;
-
-/**
- * Handle to the mint's configuration
- */
-static struct GNUNET_CONFIGURATION_Handle *kcfg;
-
-/**
- * Time when the key update is executed.  Either the actual current time, or a
- * pretended time.
- */
-static struct GNUNET_TIME_Absolute now;
-
-/**
- * Master private key of the mint.
- */
-static struct TALER_MasterPrivateKeyP master_priv;
-
-/**
- * Master public key of the mint.
- */
-static struct TALER_MasterPublicKeyP master_public_key;
-
-/**
- * Until what time do we provide keys?
- */
-static struct GNUNET_TIME_Absolute lookahead_sign_stamp;
-
-
-/**
- * Obtain the name of the directory we use to store signing
- * keys created at time @a start.
- *
- * @param start time at which we create the signing key
- * @return name of the directory we should use, basically "$MINTDIR/$TIME/";
- *         (valid until next call to this function)
- */
-static const char *
-get_signkey_file (struct GNUNET_TIME_Absolute start)
-{
-  static char dir[4096];
-
-  GNUNET_snprintf (dir,
-                   sizeof (dir),
-                   "%s" DIR_SEPARATOR_STR TALER_MINTDB_DIR_SIGNING_KEYS DIR_SEPARATOR_STR "%llu",
-                   mint_directory,
-                   (unsigned long long) start.abs_value_us);
-  return dir;
-}
-
-
-/**
- * Hash the data defining the coin type.  Exclude information that may
- * not be the same for all instances of the coin type (i.e. the
- * anchor, overlap).
- *
- * @param p coin parameters to convert to a hash
- * @param[out] hash set to the hash matching @a p
- */
-static void
-hash_coin_type (const struct CoinTypeParams *p,
-                struct GNUNET_HashCode *hash)
-{
-  struct CoinTypeNBOP p_nbo;
-
-  memset (&p_nbo,
-          0,
-          sizeof (struct CoinTypeNBOP));
-  p_nbo.duration_spend = GNUNET_TIME_relative_hton (p->duration_spend);
-  p_nbo.duration_legal = GNUNET_TIME_relative_hton (p->duration_legal);
-  p_nbo.duration_withdraw = GNUNET_TIME_relative_hton (p->duration_withdraw);
-  TALER_amount_hton (&p_nbo.value,
-                     &p->value);
-  TALER_amount_hton (&p_nbo.fee_withdraw,
-                     &p->fee_withdraw);
-  TALER_amount_hton (&p_nbo.fee_deposit,
-                     &p->fee_deposit);
-  TALER_amount_hton (&p_nbo.fee_refresh,
-                     &p->fee_refresh);
-  p_nbo.rsa_keysize = htonl (p->rsa_keysize);
-  GNUNET_CRYPTO_hash (&p_nbo,
-                      sizeof (struct CoinTypeNBOP),
-                      hash);
-}
-
-
-/**
- * Obtain the name of the directory we should use to store coins of
- * the given type.  The directory name has the format
- * "$MINTDIR/$VALUE/$HASH/" where "$VALUE" represents the value of the
- * coin and "$HASH" encodes all of the coin's parameters, generating a
- * unique string for each type of coin.  Note that the "$HASH"
- * includes neither the absolute creation time nor the key of the
- * coin, thus the files in the subdirectory really just refer to the
- * same type of coins, not the same coin.
- *
- * @param p coin parameters to convert to a directory name
- * @return directory name (valid until next call to this function)
- */
-static const char *
-get_cointype_dir (const struct CoinTypeParams *p)
-{
-  static char dir[4096];
-  struct GNUNET_HashCode hash;
-  char *hash_str;
-  char *val_str;
-  size_t i;
-
-  hash_coin_type (p, &hash);
-  hash_str = GNUNET_STRINGS_data_to_string_alloc (&hash,
-                                                  sizeof (struct GNUNET_HashCode));
-  GNUNET_assert (NULL != hash_str);
-  GNUNET_assert (HASH_CUTOFF <= strlen (hash_str) + 1);
-  hash_str[HASH_CUTOFF] = 0;
-
-  val_str = TALER_amount_to_string (&p->value);
-  for (i = 0; i < strlen (val_str); i++)
-    if ( (':' == val_str[i]) ||
-         ('.' == val_str[i]) )
-      val_str[i] = '_';
-
-  GNUNET_snprintf (dir,
-                   sizeof (dir),
-                   "%s" DIR_SEPARATOR_STR TALER_MINTDB_DIR_DENOMINATION_KEYS DIR_SEPARATOR_STR "%s-%s",
-                   mint_directory,
-                   val_str,
-                   hash_str);
-  GNUNET_free (hash_str);
-  GNUNET_free (val_str);
-  return dir;
-}
-
-
-/**
- * Obtain the name of the file we would use to store the key
- * information for a coin of the given type @a p and validity
- * start time @a start
- *
- * @param p parameters for the coin
- * @param start when would the coin begin to be issued
- * @return name of the file to use for this coin
- *         (valid until next call to this function)
- */
-static const char *
-get_cointype_file (const struct CoinTypeParams *p,
-                   struct GNUNET_TIME_Absolute start)
-{
-  static char filename[4096];
-  const char *dir;
-
-  dir = get_cointype_dir (p);
-  GNUNET_snprintf (filename,
-                   sizeof (filename),
-                   "%s" DIR_SEPARATOR_STR "%llu",
-                   dir,
-                   (unsigned long long) start.abs_value_us);
-  return filename;
-}
-
-
-/**
- * Get the latest key file from a past run of the key generation
- * tool.  Used to calculate the starting time for the keys we
- * generate during this invocation.  This function is used to
- * handle both signing keys and coin keys, as in both cases
- * the filenames correspond to the timestamps we need.
- *
- * @param cls closure, a `struct GNUNET_TIME_Absolute *`, updated
- *                     to contain the highest timestamp (below #now)
- *                     that was found
- * @param filename complete filename (absolute path)
- * @return #GNUNET_OK (to continue to iterate)
- */
-static int
-get_anchor_iter (void *cls,
-                 const char *filename)
-{
-  struct GNUNET_TIME_Absolute *anchor = cls;
-  struct GNUNET_TIME_Absolute stamp;
-  const char *base;
-  char *end = NULL;
-
-  base = GNUNET_STRINGS_get_short_name (filename);
-  stamp.abs_value_us = strtol (base,
-                               &end,
-                               10);
-  if ((NULL == end) || (0 != *end))
-  {
-    fprintf(stderr,
-            "Ignoring unexpected file `%s'.\n",
-            filename);
-    return GNUNET_OK;
-  }
-  *anchor = GNUNET_TIME_absolute_max (stamp,
-                                      *anchor);
-  return GNUNET_OK;
-}
-
-
-/**
- * Get the timestamp where the first new key should be generated.
- * Relies on correctly named key files (as we do not parse them,
- * but just look at the filenames to "guess" at their contents).
- *
- * @param dir directory that should contain the existing keys
- * @param duration how long is one key valid (for signing)?
- * @param overlap what's the overlap between the keys validity period?
- * @param[out] anchor the timestamp where the first new key should be generated
- */
-static void
-get_anchor (const char *dir,
-            struct GNUNET_TIME_Relative duration,
-            struct GNUNET_TIME_Relative overlap,
-            struct GNUNET_TIME_Absolute *anchor)
-{
-  GNUNET_assert (0 == duration.rel_value_us % 1000000);
-  GNUNET_assert (0 == overlap.rel_value_us % 1000000);
-  if (GNUNET_YES !=
-      GNUNET_DISK_directory_test (dir,
-                                  GNUNET_YES))
-  {
-    *anchor = now;
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "No existing keys found, starting with fresh key set.\n");
-    return;
-  }
-  *anchor = GNUNET_TIME_UNIT_ZERO_ABS;
-  if (-1 ==
-      GNUNET_DISK_directory_scan (dir,
-                                  &get_anchor_iter,
-                                  anchor))
-  {
-    *anchor = now;
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "No existing keys found, starting with fresh key set.\n");
-    return;
-  }
-
-  if ((GNUNET_TIME_absolute_add (*anchor,
-                                 duration)).abs_value_us < now.abs_value_us)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "Existing keys are way too old, starting with fresh key set.\n");
-    *anchor = now;
-  }
-  else if (anchor->abs_value_us != now.abs_value_us)
-  {
-    /* Real starting time is the last start time + duration - overlap */
-    *anchor = GNUNET_TIME_absolute_add (*anchor,
-                                        duration);
-    *anchor = GNUNET_TIME_absolute_subtract (*anchor,
-                                             overlap);
-  }
-  /* anchor is now the stamp where we need to create a new key */
-}
-
-
-/**
- * Create a mint signing key (for signing mint messages, not for coins)
- * and assert its correctness by signing it with the master key.
- *
- * @param start start time of the validity period for the key
- * @param duration how long should the key be valid
- * @param end when do all signatures by this key expire
- * @param[out] pi set to the signing key information
- */
-static void
-create_signkey_issue_priv (struct GNUNET_TIME_Absolute start,
-                           struct GNUNET_TIME_Relative duration,
-                           struct GNUNET_TIME_Absolute end,
-                           struct TALER_MINTDB_PrivateSigningKeyInformationP *pi)
-{
-  struct GNUNET_CRYPTO_EddsaPrivateKey *priv;
-  struct TALER_MintSigningKeyValidityPS *issue = &pi->issue;
-
-  priv = GNUNET_CRYPTO_eddsa_key_create ();
-  pi->signkey_priv.eddsa_priv = *priv;
-  GNUNET_free (priv);
-  issue->master_public_key = master_public_key;
-  issue->start = GNUNET_TIME_absolute_hton (start);
-  issue->expire = GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_add (start,
-                                                                       duration));
-  issue->end = GNUNET_TIME_absolute_hton (end);
-  GNUNET_CRYPTO_eddsa_key_get_public (&pi->signkey_priv.eddsa_priv,
-                                      &issue->signkey_pub.eddsa_pub);
-  issue->purpose.purpose = htonl (TALER_SIGNATURE_MASTER_SIGNING_KEY_VALIDITY);
-  issue->purpose.size = htonl (sizeof (struct TALER_MintSigningKeyValidityPS) -
-                               offsetof (struct TALER_MintSigningKeyValidityPS,
-                                         purpose));
-
-  GNUNET_assert (GNUNET_OK ==
-                 GNUNET_CRYPTO_eddsa_sign (&master_priv.eddsa_priv,
-                                           &issue->purpose,
-                                           &issue->signature.eddsa_signature));
-}
-
-
-/**
- * Generate signing keys starting from the last key found to
- * the lookahead time.
- *
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
- */
-static int
-mint_keys_update_signkeys ()
-{
-  struct GNUNET_TIME_Relative signkey_duration;
-  struct GNUNET_TIME_Relative legal_duration;
-  struct GNUNET_TIME_Absolute anchor;
-  char *signkey_dir;
-
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_time (kcfg,
-                                           "mint_keys",
-                                           "signkey_duration",
-                                           &signkey_duration))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               "mint_keys",
-                               "signkey_duration");
-    return GNUNET_SYSERR;
-  }
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_time (kcfg,
-                                           "mint_keys",
-                                           "legal_duration",
-                                           &legal_duration))
-  {
-    GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
-                               "mint_keys",
-                               "legal_duration",
-                               "fails to specify valid timeframe");
-    return GNUNET_SYSERR;
-  }
-  if (signkey_duration.rel_value_us > legal_duration.rel_value_us)
-  {
-    GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
-                               "mint_keys",
-                               "legal_duration",
-                               "must be longer than signkey_duration");
-    return GNUNET_SYSERR;
-  }
-  TALER_round_rel_time (&signkey_duration);
-  GNUNET_asprintf (&signkey_dir,
-                   "%s" DIR_SEPARATOR_STR TALER_MINTDB_DIR_SIGNING_KEYS,
-                   mint_directory);
-  /* make sure the directory exists */
-  if (GNUNET_OK !=
-      GNUNET_DISK_directory_create (signkey_dir))
-  {
-    fprintf (stderr,
-             "Failed to create signing key directory\n");
-    return GNUNET_SYSERR;
-  }
-
-  get_anchor (signkey_dir,
-              signkey_duration,
-              GNUNET_TIME_UNIT_ZERO /* no overlap for signing keys */,
-              &anchor);
-
-  while (anchor.abs_value_us < lookahead_sign_stamp.abs_value_us)
-  {
-    const char *skf;
-    struct TALER_MINTDB_PrivateSigningKeyInformationP signkey_issue;
-    ssize_t nwrite;
-    struct GNUNET_TIME_Absolute end;
-
-    skf = get_signkey_file (anchor);
-    end = GNUNET_TIME_absolute_add (anchor,
-                                    legal_duration);
-    GNUNET_break (GNUNET_YES !=
-                  GNUNET_DISK_file_test (skf));
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "Generating signing key for %s.\n",
-                GNUNET_STRINGS_absolute_time_to_string (anchor));
-    create_signkey_issue_priv (anchor,
-                               signkey_duration,
-                               end,
-                               &signkey_issue);
-    nwrite = GNUNET_DISK_fn_write (skf,
-                                   &signkey_issue,
-                                   sizeof (struct TALER_MINTDB_PrivateSigningKeyInformationP),
-                                   GNUNET_DISK_PERM_USER_WRITE | GNUNET_DISK_PERM_USER_READ);
-    if (sizeof (struct TALER_MINTDB_PrivateSigningKeyInformationP) != nwrite)
-    {
-      fprintf (stderr,
-               "Failed to write to file `%s': %s\n",
-               skf,
-               STRERROR (errno));
-      return GNUNET_SYSERR;
-    }
-    anchor = GNUNET_TIME_absolute_add (anchor,
-                                       signkey_duration);
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Parse configuration for coin type parameters.  Also determines
- * our anchor by looking at the existing coins of the same type.
- *
- * @param ct section in the configuration file giving the coin type parameters
- * @param[out] params set to the coin parameters from the configuration
- * @return #GNUNET_OK on success, #GNUNET_SYSERR if the configuration is invalid
- */
-static int
-get_cointype_params (const char *ct,
-                     struct CoinTypeParams *params)
-{
-  const char *dir;
-  unsigned long long rsa_keysize;
-
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_time (kcfg,
-                                           ct,
-                                           "duration_withdraw",
-                                           &params->duration_withdraw))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               ct,
-                               "duration_withdraw");
-    return GNUNET_SYSERR;
-  }
-  TALER_round_rel_time (&params->duration_withdraw);
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_time (kcfg,
-                                           ct,
-                                           "duration_spend",
-                                           &params->duration_spend))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               ct,
-                               "duration_spend");
-    return GNUNET_SYSERR;
-  }
-  TALER_round_rel_time (&params->duration_spend);
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_time (kcfg,
-                                           ct,
-                                           "duration_legal",
-                                           &params->duration_legal))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               ct,
-                               "duration_legal");
-    return GNUNET_SYSERR;
-  }
-  TALER_round_rel_time (&params->duration_legal);
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_time (kcfg,
-                                           ct,
-                                           "duration_overlap",
-                                           &params->duration_overlap))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               ct,
-                               "mint_denom_duration_overlap");
-    return GNUNET_SYSERR;
-  }
-  TALER_round_rel_time (&params->duration_overlap);
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_number (kcfg,
-                                             ct,
-                                             "rsa_keysize",
-                                             &rsa_keysize))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               ct,
-                               "rsa_keysize");
-    return GNUNET_SYSERR;
-  }
-  if ( (rsa_keysize > 4 * 2048) ||
-       (rsa_keysize < 1024) )
-  {
-    fprintf (stderr,
-             "Given RSA keysize %llu outside of permitted range\n",
-             rsa_keysize);
-    return GNUNET_SYSERR;
-  }
-  params->rsa_keysize = (unsigned int) rsa_keysize;
-  if (GNUNET_OK !=
-      TALER_config_get_denom (kcfg,
-                              ct,
-                              "value",
-                              &params->value))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               ct,
-                               "value");
-    return GNUNET_SYSERR;
-  }
-  if (GNUNET_OK !=
-      TALER_config_get_denom (kcfg,
-                              ct,
-                              "fee_withdraw",
-                              &params->fee_withdraw))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               ct,
-                               "fee_withdraw");
-    return GNUNET_SYSERR;
-  }
-  if (GNUNET_OK !=
-      TALER_config_get_denom (kcfg,
-                              ct,
-                              "fee_deposit",
-                              &params->fee_deposit))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               ct,
-                               "fee_deposit");
-    return GNUNET_SYSERR;
-  }
-  if (GNUNET_OK !=
-      TALER_config_get_denom (kcfg,
-                              ct,
-                              "fee_refresh",
-                              &params->fee_refresh))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               ct,
-                               "fee_refresh");
-    return GNUNET_SYSERR;
-  }
-
-  dir = get_cointype_dir (params);
-  get_anchor (dir,
-              params->duration_withdraw,
-              params->duration_overlap,
-              &params->anchor);
-  return GNUNET_OK;
-}
-
-
-/**
- * Initialize the private and public key information structure for
- * signing coins into existence.  Generates the private signing key
- * and signes it together with the coin's meta data using the master
- * signing key.
- *
- * @param params parameters used to initialize the @a dki
- * @param[out] dki initialized according to @a params
- */
-static void
-create_denomkey_issue (const struct CoinTypeParams *params,
-                       struct TALER_MINTDB_DenominationKeyIssueInformation *dki)
-{
-  dki->denom_priv.rsa_private_key
-    = GNUNET_CRYPTO_rsa_private_key_create (params->rsa_keysize);
-  GNUNET_assert (NULL != dki->denom_priv.rsa_private_key);
-  dki->denom_pub.rsa_public_key
-    = GNUNET_CRYPTO_rsa_private_key_get_public (dki->denom_priv.rsa_private_key);
-  GNUNET_CRYPTO_rsa_public_key_hash (dki->denom_pub.rsa_public_key,
-                                     &dki->issue.properties.denom_hash);
-  dki->issue.properties.master = master_public_key;
-  dki->issue.properties.start = GNUNET_TIME_absolute_hton (params->anchor);
-  dki->issue.properties.expire_withdraw =
-      GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_add (params->anchor,
-                                                           params->duration_withdraw));
-  dki->issue.properties.expire_spend =
-    GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_add (params->anchor,
-                                                         params->duration_spend));
-  dki->issue.properties.expire_legal =
-    GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_add (params->anchor,
-                                                         params->duration_legal));
-  TALER_amount_hton (&dki->issue.properties.value,
-                     &params->value);
-  TALER_amount_hton (&dki->issue.properties.fee_withdraw,
-                     &params->fee_withdraw);
-  TALER_amount_hton (&dki->issue.properties.fee_deposit,
-                     &params->fee_deposit);
-  TALER_amount_hton (&dki->issue.properties.fee_refresh,
-                     &params->fee_refresh);
-  dki->issue.properties.purpose.purpose
-    = htonl (TALER_SIGNATURE_MASTER_DENOMINATION_KEY_VALIDITY);
-  dki->issue.properties.purpose.size
-    = htonl (sizeof (struct TALER_DenominationKeyValidityPS));
-  GNUNET_assert (GNUNET_OK ==
-                 GNUNET_CRYPTO_eddsa_sign (&master_priv.eddsa_priv,
-                                           &dki->issue.properties.purpose,
-                                           &dki->issue.signature.eddsa_signature));
-}
-
-
-/**
- * Generate new coin signing keys for the coin type of the given @a
- * coin_alias.
- *
- * @param cls a `int *`, to be set to #GNUNET_SYSERR on failure
- * @param coin_alias name of the coin's section in the configuration
- */
-static void
-mint_keys_update_cointype (void *cls,
-                           const char *coin_alias)
-{
-  int *ret = cls;
-  struct CoinTypeParams p;
-  const char *dkf;
-  struct TALER_MINTDB_DenominationKeyIssueInformation denomkey_issue;
-
-  if (0 != strncasecmp (coin_alias,
-                        "coin_",
-                        strlen ("coin_")))
-    return; /* not a coin definition */
-  if (GNUNET_OK !=
-      get_cointype_params (coin_alias,
-                           &p))
-  {
-    *ret = GNUNET_SYSERR;
-    return;
-  }
-  if (GNUNET_OK !=
-      GNUNET_DISK_directory_create (get_cointype_dir (&p)))
-  {
-    *ret = GNUNET_SYSERR;
-    return;
-  }
-
-  while (p.anchor.abs_value_us < lookahead_sign_stamp.abs_value_us)
-  {
-    dkf = get_cointype_file (&p,
-                             p.anchor);
-    GNUNET_break (GNUNET_YES != GNUNET_DISK_file_test (dkf));
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "Generating denomination key for type `%s', start %s at %s\n",
-                coin_alias,
-                GNUNET_STRINGS_absolute_time_to_string (p.anchor),
-                dkf);
-    create_denomkey_issue (&p,
-                           &denomkey_issue);
-    if (GNUNET_OK !=
-        TALER_MINTDB_denomination_key_write (dkf,
-                                             &denomkey_issue))
-    {
-      fprintf (stderr,
-               "Failed to write denomination key information to file `%s'.\n",
-               dkf);
-      *ret = GNUNET_SYSERR;
-      GNUNET_CRYPTO_rsa_private_key_free (denomkey_issue.denom_priv.rsa_private_key);
-      return;
-    }
-    if ( (NULL != auditor_output_file) &&
-         (sizeof (denomkey_issue.issue.properties) !=
-          fwrite (&denomkey_issue.issue.properties,
-                  sizeof (struct TALER_DenominationKeyValidityPS),
-                  1,
-                  auditor_output_file)) )
-    {
-      fprintf (stderr,
-               "Failed to write denomination key information to %s: %s\n",
-               auditorrequestfile,
-               STRERROR (errno));
-      *ret = GNUNET_SYSERR;
-      return;
-    }
-    GNUNET_CRYPTO_rsa_private_key_free (denomkey_issue.denom_priv.rsa_private_key);
-    p.anchor = GNUNET_TIME_absolute_add (p.anchor,
-                                         p.duration_spend);
-    p.anchor = GNUNET_TIME_absolute_subtract (p.anchor,
-                                              p.duration_overlap);
-  }
-}
-
-
-/**
- * Update all of the denomination keys of the mint.
- *
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
- */
-static int
-mint_keys_update_denomkeys ()
-{
-  int ok;
-
-  ok = GNUNET_OK;
-  GNUNET_CONFIGURATION_iterate_sections (kcfg,
-                                         &mint_keys_update_cointype,
-                                         &ok);
-  return ok;
-}
-
-
-/**
- * The main function of the taler-mint-keyup tool.  This tool is used
- * to create the signing and denomination keys for the mint.  It uses
- * the long-term offline private key and writes the (additional) key
- * files to the respective mint directory (from where they can then be
- * copied to the online server).  Note that we need (at least) the
- * most recent generated previous keys so as to align the validity
- * periods.
- *
- * @param argc number of arguments from the command line
- * @param argv command line arguments
- * @return 0 ok, 1 on error
- */
-int
-main (int argc,
-      char *const *argv)
-{
-  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
-    {'d', "mint-dir", "DIR",
-     "mint directory with keys to update", 1,
-     &GNUNET_GETOPT_set_filename, &mint_directory},
-    TALER_GETOPT_OPTION_HELP ("Setup signing and denomination keys for a Taler mint"),
-    {'m', "master-key", "FILE",
-     "master key file (private key)", 1,
-     &GNUNET_GETOPT_set_filename, &masterkeyfile},
-    {'o', "output", "FILE",
-     "auditor denomination key signing request file to create", 1,
-     &GNUNET_GETOPT_set_filename, &auditorrequestfile},
-    {'t', "time", "TIMESTAMP",
-     "pretend it is a different time for the update", 0,
-     &GNUNET_GETOPT_set_string, &pretend_time_str},
-    GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
-    GNUNET_GETOPT_OPTION_END
-  };
-  struct GNUNET_TIME_Relative lookahead_sign;
-  struct GNUNET_CRYPTO_EddsaPrivateKey *eddsa_priv;
-
-  GNUNET_assert (GNUNET_OK ==
-                 GNUNET_log_setup ("taler-mint-keyup",
-                                   "WARNING",
-                                   NULL));
-
-  if (GNUNET_GETOPT_run ("taler-mint-keyup",
-                         options,
-                         argc, argv) < 0)
-    return 1;
-  if (NULL == mint_directory)
-  {
-    fprintf (stderr,
-             "Mint directory not given\n");
-    return 1;
-  }
-  if (NULL != pretend_time_str)
-  {
-    if (GNUNET_OK !=
-        GNUNET_STRINGS_fancy_time_to_absolute (pretend_time_str,
-                                               &now))
-    {
-      fprintf (stderr,
-               "timestamp `%s' invalid\n",
-               pretend_time_str);
-      return 1;
-    }
-  }
-  else
-  {
-    now = GNUNET_TIME_absolute_get ();
-  }
-  TALER_round_abs_time (&now);
-
-  kcfg = TALER_config_load (mint_directory);
-  if (NULL == kcfg)
-  {
-    fprintf (stderr,
-             "Failed to load mint configuration\n");
-    return 1;
-  }
-  if (NULL == masterkeyfile)
-  {
-    fprintf (stderr,
-             "Master key file not given\n");
-    return 1;
-  }
-  eddsa_priv = GNUNET_CRYPTO_eddsa_key_create_from_file (masterkeyfile);
-  if (NULL == eddsa_priv)
-  {
-    fprintf (stderr,
-             "Failed to initialize master key from file `%s'\n",
-             masterkeyfile);
-    return 1;
-  }
-  master_priv.eddsa_priv = *eddsa_priv;
-  GNUNET_free (eddsa_priv);
-  GNUNET_CRYPTO_eddsa_key_get_public (&master_priv.eddsa_priv,
-                                      &master_public_key.eddsa_pub);
-
-  if (NULL != auditorrequestfile)
-  {
-    auditor_output_file = FOPEN (auditorrequestfile,
-                                 "w");
-    if (NULL == auditor_output_file)
-    {
-      fprintf (stderr,
-               "Failed to open `%s' for writing: %s\n",
-               auditorrequestfile,
-               STRERROR (errno));
-      return 1;
-    }
-  }
-
-  /* check if key from file matches the one from the configuration */
-  {
-    struct GNUNET_CRYPTO_EddsaPublicKey master_public_key_from_cfg;
-
-    if (GNUNET_OK !=
-        GNUNET_CONFIGURATION_get_data (kcfg,
-                                       "mint",
-                                       "master_public_key",
-                                       &master_public_key_from_cfg,
-                                       sizeof (struct GNUNET_CRYPTO_EddsaPublicKey)))
-    {
-      GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                                 "mint",
-                                 "master_public_key");
-      return 1;
-    }
-    if (0 !=
-        memcmp (&master_public_key,
-                &master_public_key_from_cfg,
-                sizeof (struct GNUNET_CRYPTO_EddsaPublicKey)))
-    {
-      GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
-                                 "mint",
-                                 "master_public_key",
-                                 _("does not match with private key"));
-      return 1;
-    }
-  }
-
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_time (kcfg,
-                                           "mint_keys",
-                                           "lookahead_sign",
-                                           &lookahead_sign))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               "mint_keys",
-                               "lookahead_sign");
-    return GNUNET_SYSERR;
-  }
-  if (0 == lookahead_sign.rel_value_us)
-  {
-    GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
-                               "mint_keys",
-                               "lookahead_sign",
-                               _("must not be zero"));
-    return GNUNET_SYSERR;
-  }
-  TALER_round_rel_time (&lookahead_sign);
-  lookahead_sign_stamp = GNUNET_TIME_absolute_add (now,
-                                                   lookahead_sign);
-
-
-  /* finally, do actual work */
-  if (GNUNET_OK != mint_keys_update_signkeys ())
-    return 1;
-
-  if (GNUNET_OK != mint_keys_update_denomkeys ())
-    return 1;
-  if (NULL != auditor_output_file)
-  {
-    FCLOSE (auditor_output_file);
-    auditor_output_file = NULL;
-  }
-  return 0;
-}
-
-/* end of taler-mint-keyup.c */
diff --git a/src/mint-tools/taler-mint-reservemod.c b/src/mint-tools/taler-mint-reservemod.c
deleted file mode 100644
index 38d27054a..000000000
--- a/src/mint-tools/taler-mint-reservemod.c
+++ /dev/null
@@ -1,206 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-reservemod.c
- * @brief Modify reserves.  Allows manipulation of reserve balances.
- * @author Florian Dold
- * @author Benedikt Mueller
- */
-#include "platform.h"
-#include <gnunet/gnunet_util_lib.h>
-#include <libpq-fe.h>
-#include <jansson.h>
-#include "taler_mintdb_plugin.h"
-
-/**
- * Director of the mint, containing the keys.
- */
-static char *mint_directory;
-
-/**
- * Handle to the mint's configuration
- */
-static struct GNUNET_CONFIGURATION_Handle *cfg;
-
-/**
- * Our DB plugin.
- */
-static struct TALER_MINTDB_Plugin *plugin;
-
-
-/**
- * The main function of the reservemod tool
- *
- * @param argc number of arguments from the command line
- * @param argv command line arguments
- * @return 0 ok, 1 on error
- */
-int
-main (int argc, char *const *argv)
-{
-  char *reserve_pub_str = NULL;
-  char *add_str = NULL;
-  struct TALER_Amount add_value;
-  char *details = NULL;
-  json_t *jdetails;
-  json_error_t error;
-  struct TALER_ReservePublicKeyP reserve_pub;
-  struct TALER_MINTDB_Session *session;
-  const struct GNUNET_GETOPT_CommandLineOption options[] = {
-    {'a', "add", "DENOM",
-     "value to add", 1,
-     &GNUNET_GETOPT_set_string, &add_str},
-    {'d', "mint-dir", "DIR",
-     "mint directory with keys to update", 1,
-     &GNUNET_GETOPT_set_filename, &mint_directory},
-    {'D', "details", "JSON",
-     "details about the bank transaction which justify why we add this amount", 1,
-     &GNUNET_GETOPT_set_string, &details},
-    TALER_GETOPT_OPTION_HELP ("Deposit funds into a Taler reserve"),
-    {'R', "reserve", "KEY",
-     "reserve (public key) to modify", 1,
-     &GNUNET_GETOPT_set_string, &reserve_pub_str},
-    GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
-    GNUNET_GETOPT_OPTION_END
-  };
-  int ret;
-
-  GNUNET_assert (GNUNET_OK ==
-                 GNUNET_log_setup ("taler-mint-reservemod",
-                                   "WARNING",
-                                   NULL));
-
-  if (GNUNET_GETOPT_run ("taler-mint-reservemod",
-                         options,
-                         argc, argv) < 0)
-    return 1;
-  if (NULL == mint_directory)
-  {
-    fprintf (stderr,
-             "Mint directory not given\n");
-    GNUNET_free_non_null (add_str);
-    GNUNET_free_non_null (details);
-    GNUNET_free_non_null (reserve_pub_str);
-    return 1;
-  }
-  if ((NULL == reserve_pub_str) ||
-      (GNUNET_OK !=
-       GNUNET_STRINGS_string_to_data (reserve_pub_str,
-                                      strlen (reserve_pub_str),
-                                      &reserve_pub,
-                                      sizeof (struct TALER_ReservePublicKeyP))))
-  {
-    fprintf (stderr,
-             "Parsing reserve key invalid\n");
-    GNUNET_free_non_null (add_str);
-    GNUNET_free_non_null (details);
-    GNUNET_free_non_null (reserve_pub_str);
-    return 1;
-  }
-  if ( (NULL == add_str) ||
-       (GNUNET_OK !=
-        TALER_string_to_amount (add_str,
-                                &add_value)) )
-  {
-    fprintf (stderr,
-             "Failed to parse currency amount `%s'\n",
-             add_str);
-    GNUNET_free_non_null (add_str);
-    GNUNET_free_non_null (details);
-    GNUNET_free_non_null (reserve_pub_str);
-    return 1;
-  }
-
-  if (NULL == details)
-  {
-    fprintf (stderr,
-             "No wiring details given (justification required)\n");
-   GNUNET_free_non_null (add_str);
-   GNUNET_free_non_null (reserve_pub_str);
-   return 1;
-  }
-
-  cfg = TALER_config_load (mint_directory);
-  if (NULL == cfg)
-  {
-    fprintf (stderr,
-             "Failed to load mint configuration\n");
-    GNUNET_free_non_null (add_str);
-    GNUNET_free_non_null (details);
-    GNUNET_free_non_null (reserve_pub_str);
-   return 1;
-  }
-  ret = 1;
-  if (NULL ==
-      (plugin = TALER_MINTDB_plugin_load (cfg)))
-  {
-    fprintf (stderr,
-             "Failed to initialize database plugin.\n");
-    goto cleanup;
-  }
-
-  session = plugin->get_session (plugin->cls,
-                                 GNUNET_NO);
-  if (NULL == session)
-  {
-    fprintf (stderr,
-             "Failed to initialize DB session\n");
-    goto cleanup;
-  }
-  jdetails = json_loads (details,
-                         JSON_REJECT_DUPLICATES,
-                         &error);
-  if (NULL == jdetails)
-  {
-    fprintf (stderr,
-             "Failed to parse JSON transaction details `%s': %s (%s)\n",
-             details,
-             error.text,
-             error.source);
-    goto cleanup;
-  }
-  /* FIXME: maybe allow passing timestamp via command-line? */
-  ret = plugin->reserves_in_insert (plugin->cls,
-				    session,
-				    &reserve_pub,
-				    &add_value,
-                                    GNUNET_TIME_absolute_get (),
-				    jdetails);
-  json_decref (jdetails);
-  if (GNUNET_SYSERR == ret)
-  {
-    fprintf (stderr,
-             "Failed to update reserve.\n");
-    goto cleanup;
-  }
-  if (GNUNET_NO == ret)
-  {
-    fprintf (stderr,
-             "Record exists, reserve not updated.\n");
-  }
-  ret = 0;
- cleanup:
-  if (NULL != plugin)
-    TALER_MINTDB_plugin_unload (plugin);
-  if (NULL != cfg)
-    GNUNET_CONFIGURATION_destroy (cfg);
-  GNUNET_free_non_null (add_str);
-  GNUNET_free_non_null (details);
-  GNUNET_free_non_null (reserve_pub_str);
-  return ret;
-}
-
-/* end taler-mint-reservemod.c */
diff --git a/src/mint-tools/taler-mint-sepa.c b/src/mint-tools/taler-mint-sepa.c
deleted file mode 100644
index e66db541e..000000000
--- a/src/mint-tools/taler-mint-sepa.c
+++ /dev/null
@@ -1,163 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-sepa.c
- * @brief Create signed response for /wire/sepa requests.
- * @author Christian Grothoff
- */
-#include <platform.h>
-#include <jansson.h>
-#include "taler_crypto_lib.h"
-#include "taler_signatures.h"
-
-
-/**
- * Filename of the master private key.
- */
-static char *masterkeyfile;
-
-/**
- * Account holder name.
- */
-static char *sepa_name;
-
-/**
- * IBAN number.
- */
-static char *iban;
-
-/**
- * BIC number.
- */
-static char *bic;
-
-/**
- * Where to write the result.
- */
-static char *output_filename;
-
-
-/**
- * The main function of the taler-mint-sepa tool.  This tool is used
- * to sign the SEPA bank account details using the master key.
- *
- * @param argc number of arguments from the command line
- * @param argv command line arguments
- * @return 0 ok, 1 on error
- */
-int
-main (int argc,
-      char *const *argv)
-{
-  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
-    {'b', "bic", "BICCODE",
-     "bank BIC code", 1,
-     &GNUNET_GETOPT_set_string, &bic},
-    {'i', "iban", "IBAN",
-     "IBAN number of the account", 1,
-     &GNUNET_GETOPT_set_string, &iban},
-    {'m', "master-key", "FILE",
-     "master key file (private key)", 1,
-     &GNUNET_GETOPT_set_filename, &masterkeyfile},
-    {'n', "name", "NAME",
-     "name of the account holder", 1,
-     &GNUNET_GETOPT_set_string, &sepa_name},
-    {'o', "output", "FILE",
-     "where to write the result", 1,
-     &GNUNET_GETOPT_set_filename, &output_filename},
-    TALER_GETOPT_OPTION_HELP ("Setup /wire/sepa response"),
-    GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
-    GNUNET_GETOPT_OPTION_END
-  };
-  struct GNUNET_CRYPTO_EddsaPrivateKey *eddsa_priv;
-  struct TALER_MasterWireSepaDetailsPS wsd;
-  struct TALER_MasterSignatureP sig;
-  struct GNUNET_HashContext *hc;
-  json_t *reply;
-  char *json_str;
-
-  GNUNET_assert (GNUNET_OK ==
-                 GNUNET_log_setup ("taler-mint-sepa",
-                                   "WARNING",
-                                   NULL));
-
-  if (GNUNET_GETOPT_run ("taler-mint-sepa",
-                         options,
-                         argc, argv) < 0)
-    return 1;
-  if (NULL == masterkeyfile)
-  {
-    fprintf (stderr,
-             "Master key file not given\n");
-    return 1;
-  }
-  eddsa_priv = GNUNET_CRYPTO_eddsa_key_create_from_file (masterkeyfile);
-  if (NULL == eddsa_priv)
-  {
-    fprintf (stderr,
-             "Failed to initialize master key from file `%s'\n",
-             masterkeyfile);
-    return 1;
-  }
-
-  /* Compute message to sign */
-  hc = GNUNET_CRYPTO_hash_context_start ();
-  GNUNET_CRYPTO_hash_context_read (hc,
-				   sepa_name,
-				   strlen (sepa_name) + 1);
-  GNUNET_CRYPTO_hash_context_read (hc,
-				   iban,
-				   strlen (iban) + 1);
-  GNUNET_CRYPTO_hash_context_read (hc,
-				   bic,
-				   strlen (bic) + 1);
-  wsd.purpose.size = htonl (sizeof (wsd));
-  wsd.purpose.purpose = htonl (TALER_SIGNATURE_MASTER_SEPA_DETAILS);
-  GNUNET_CRYPTO_hash_context_finish (hc,
-				     &wsd.h_sepa_details);
-  GNUNET_CRYPTO_eddsa_sign (eddsa_priv,
-			    &wsd.purpose,
-			    &sig.eddsa_signature);
-  GNUNET_free (eddsa_priv);
-  
-  /* build JSON message */
-  reply = json_pack ("{s:s, s:s, s:s, s:o}",
-		     "receiver_name", sepa_name,
-		     "iban", iban,
-		     "bic", bic,
-		     "sig", TALER_json_from_data (&sig,
-						  sizeof (sig)));
-  GNUNET_assert (NULL != reply);
-
-  /* dump result to stdout */
-  json_str = json_dumps (reply, JSON_INDENT(2));
-  GNUNET_assert (NULL != json_str);
- 
-  if (NULL != output_filename)
-  {
-    fclose (stdout);
-    stdout = fopen (output_filename,
-		    "w+");
-  }
-  fprintf (stdout, 
-	   "%s",
-	   json_str);
-  fflush (stdout);
-  free (json_str);
-  return 0;
-}
-
-/* end of taler-mint-sepa.c */
diff --git a/src/mint/.gitignore b/src/mint/.gitignore
deleted file mode 100644
index a2e71d5da..000000000
--- a/src/mint/.gitignore
+++ /dev/null
@@ -1,6 +0,0 @@
-taler-mint-dbinit
-taler-mint-keycheck
-taler-mint-keyup
-taler-mint-pursemod
-taler-mint-reservemod
-taler-mint-httpd
\ No newline at end of file
diff --git a/src/mint/Makefile.am b/src/mint/Makefile.am
deleted file mode 100644
index 8e2eae77b..000000000
--- a/src/mint/Makefile.am
+++ /dev/null
@@ -1,59 +0,0 @@
-# This Makefile.am is in the public domain
-AM_CPPFLAGS = -I$(top_srcdir)/src/include
-
-if USE_COVERAGE
-  AM_CFLAGS = --coverage -O0
-  XLIB = -lgcov
-endif
-
-bin_PROGRAMS = \
-  taler-mint-aggregator \
-  taler-mint-httpd
-
-taler_mint_aggregator_SOURCES = \
-  taler-mint-aggregator.c
-taler_mint_aggregator_LDADD = \
-  $(LIBGCRYPT_LIBS) \
-  $(top_builddir)/src/util/libtalerutil.la \
-  $(top_builddir)/src/wire/libtalerwire.la \
-  $(top_builddir)/src/mintdb/libtalermintdb.la \
-  -ljansson \
-  -lgnunetutil
-
-taler_mint_httpd_SOURCES = \
-  taler-mint-httpd.c taler-mint-httpd.h \
-  taler-mint-httpd_admin.c taler-mint-httpd_admin.h \
-  taler-mint-httpd_db.c taler-mint-httpd_db.h \
-  taler-mint-httpd_deposit.c taler-mint-httpd_deposit.h \
-  taler-mint-httpd_keystate.c taler-mint-httpd_keystate.h \
-  taler-mint-httpd_mhd.c taler-mint-httpd_mhd.h \
-  taler-mint-httpd_parsing.c taler-mint-httpd_parsing.h \
-  taler-mint-httpd_refresh.c taler-mint-httpd_refresh.h \
-  taler-mint-httpd_reserve.c taler-mint-httpd_reserve.h \
-  taler-mint-httpd_responses.c taler-mint-httpd_responses.h \
-  taler-mint-httpd_tracking.c taler-mint-httpd_tracking.h \
-  taler-mint-httpd_wire.c taler-mint-httpd_wire.h \
-  taler-mint-httpd_validation.c taler-mint-httpd_validation.h
-taler_mint_httpd_LDADD = \
-  $(LIBGCRYPT_LIBS) \
-  $(top_builddir)/src/util/libtalerutil.la \
-  $(top_builddir)/src/mintdb/libtalermintdb.la \
-  -lmicrohttpd \
-  -ljansson \
-  -lgnunetutil \
-  -lpthread
-
-if HAVE_DEVELOPER
-taler_mint_httpd_SOURCES += \
-  taler-mint-httpd_test.c taler-mint-httpd_test.h
-endif
-
-check_SCRIPTS = \
-  test_taler_mint_httpd.sh
-
-if HAVE_EXPENSIVE_TESTS
-check_SCRIPTS += \
-  test_taler_mint_httpd_afl.sh
-endif
-
-TESTS = $(check_SCRIPTS)
diff --git a/src/mint/taler-mint-aggregator.c b/src/mint/taler-mint-aggregator.c
deleted file mode 100644
index 5e05c8673..000000000
--- a/src/mint/taler-mint-aggregator.c
+++ /dev/null
@@ -1,914 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2016 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-
-/**
- * @file taler-mint-aggregator.c
- * @brief Process that aggregates outgoing transactions and executes them
- * @author Christian Grothoff
- *
- * TODO:
- * - simplify global_ret: make it a global!
- * - handle shutdown more nicely (call 'cancel' method on wire transfers)
- */
-#include "platform.h"
-#include <gnunet/gnunet_util_lib.h>
-#include <jansson.h>
-#include <pthread.h>
-#include "taler_mintdb_lib.h"
-#include "taler_mintdb_plugin.h"
-#include "taler_wire_lib.h"
-
-/**
- * Which currency is used by this mint?
- */
-static char *mint_currency_string;
-
-/**
- * Which wireformat should be supported by this aggregator?
- */
-static char *mint_wireformat;
-
-/**
- * Base directory of the mint (global)
- */
-static char *mint_directory;
-
-/**
- * The mint's configuration (global)
- */
-static struct GNUNET_CONFIGURATION_Handle *cfg;
-
-/**
- * Our DB plugin.
- */
-static struct TALER_MINTDB_Plugin *db_plugin;
-
-/**
- * Our wire plugin.
- */
-static struct TALER_WIRE_Plugin *wire_plugin;
-
-/**
- * Task for the main #run() function.
- */
-static struct GNUNET_SCHEDULER_Task *task;
-
-/**
- * Limit on the number of transactions we aggregate at once.  Note
- * that the limit must be big enough to ensure that when transactions
- * of the smallest possible unit are aggregated, they do surpass the
- * "tiny" threshold beyond which we never trigger a wire transaction!
- *
- * TODO: make configurable (via config file or command line option)
- */
-static unsigned int aggregation_limit = 10000;
-
-
-/**
- * Load configuration parameters for the mint
- * server into the corresponding global variables.
- *
- * @param mint_directory the mint's directory
- * @return #GNUNET_OK on success
- */
-static int
-mint_serve_process_config (const char *mint_directory)
-{
-  char *type;
-
-  cfg = TALER_config_load (mint_directory);
-  if (NULL == cfg)
-  {
-    fprintf (stderr,
-             "Failed to load mint configuration\n");
-    return GNUNET_SYSERR;
-  }
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_string (cfg,
-                                             "mint",
-                                             "currency",
-                                             &mint_currency_string))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               "mint",
-                               "currency");
-    return GNUNET_SYSERR;
-  }
-  if (strlen (mint_currency_string) >= TALER_CURRENCY_LEN)
-  {
-    fprintf (stderr,
-             "Currency `%s' longer than the allowed limit of %u characters.",
-             mint_currency_string,
-             (unsigned int) TALER_CURRENCY_LEN);
-    return GNUNET_SYSERR;
-  }
-  if (NULL != mint_wireformat)
-    GNUNET_CONFIGURATION_set_value_string (cfg,
-                                           "mint",
-                                           "wireformat",
-                                           mint_wireformat);
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_string (cfg,
-                                             "mint",
-                                             "wireformat",
-                                             &type))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               "mint",
-                               "wireformat");
-    return GNUNET_SYSERR;
-  }
-
-  if (NULL ==
-      (db_plugin = TALER_MINTDB_plugin_load (cfg)))
-  {
-    fprintf (stderr,
-             "Failed to initialize DB subsystem\n");
-    GNUNET_free (type);
-    return GNUNET_SYSERR;
-  }
-
-  if (NULL ==
-      (wire_plugin = TALER_WIRE_plugin_load (cfg,
-                                             type)))
-  {
-    fprintf (stderr,
-             "Failed to load wire plugin for `%s'\n",
-             type);
-    GNUNET_free (type);
-    return GNUNET_SYSERR;
-  }
-  GNUNET_free (type);
-
-  return GNUNET_OK;
-}
-
-
-/**
- * Information about one aggregation process to
- * be executed.
- */
-struct AggregationUnit
-{
-  /**
-   * Public key of the merchant.
-   */
-  struct TALER_MerchantPublicKeyP merchant_pub;
-
-  /**
-   * Total amount to be transferred.
-   */
-  struct TALER_Amount total_amount;
-
-  /**
-   * Hash of @e wire.
-   */
-  struct GNUNET_HashCode h_wire;
-
-  /**
-   * Wire transfer identifier we use.
-   */
-  struct TALER_WireTransferIdentifierRawP wtid;
-
-  /**
-   * Row ID of the transaction that started it all.
-   */
-  unsigned long long row_id;
-
-  /**
-   * The current time.
-   */
-  struct GNUNET_TIME_Absolute execution_time;
-
-  /**
-   * Wire details of the merchant.
-   */
-  json_t *wire;
-
-  /**
-   * Database session for all of our transactions.
-   */
-  struct TALER_MINTDB_Session *session;
-
-  /**
-   * Wire preparation handle.
-   */
-  struct TALER_WIRE_PrepareHandle *ph;
-
-  /**
-   * Array of #aggregation_limit row_ids from the
-   * aggregation.
-   */
-  unsigned long long *additional_rows;
-
-  /**
-   * Pointer to global return value. Closure for #run().
-   */
-  int *global_ret;
-
-  /**
-   * Offset specifying how many #additional_rows are in use.
-   */
-  unsigned int rows_offset;
-
-  /**
-   * Set to #GNUNET_YES if we have to abort due to failure.
-   */
-  int failed;
-
-};
-
-
-/**
- * Function called with details about deposits that have been made,
- * with the goal of executing the corresponding wire transaction.
- *
- * @param cls closure with the `struct AggregationUnit`
- * @param row_id identifies database entry
- * @param merchant_pub public key of the merchant
- * @param coin_pub public key of the coin
- * @param amount_with_fee amount that was deposited including fee
- * @param deposit_fee amount the mint gets to keep as transaction fees
- * @param transaction_id unique transaction ID chosen by the merchant
- * @param h_contract hash of the contract between merchant and customer
- * @param wire_deadline by which the merchant adviced that he would like the
- *        wire transfer to be executed
- * @param wire wire details for the merchant
- * @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
- */
-static int
-deposit_cb (void *cls,
-            unsigned long long row_id,
-            const struct TALER_MerchantPublicKeyP *merchant_pub,
-            const struct TALER_CoinSpendPublicKeyP *coin_pub,
-            const struct TALER_Amount *amount_with_fee,
-            const struct TALER_Amount *deposit_fee,
-            uint64_t transaction_id,
-            const struct GNUNET_HashCode *h_contract,
-            struct GNUNET_TIME_Absolute wire_deadline,
-            const json_t *wire)
-{
-  struct AggregationUnit *au = cls;
-
-  au->merchant_pub = *merchant_pub;
-  if (GNUNET_OK !=
-      TALER_amount_subtract (&au->total_amount,
-                             amount_with_fee,
-                             deposit_fee))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Fatally malformed record at %llu\n",
-                row_id);
-    return GNUNET_SYSERR;
-  }
-  au->row_id = row_id;
-  au->wire = (json_t *) wire;
-  au->execution_time = GNUNET_TIME_absolute_get ();
-  TALER_hash_json (au->wire,
-                   &au->h_wire);
-  json_incref (au->wire);
-  GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_NONCE,
-                              &au->wtid,
-                              sizeof (au->wtid));
-  if (GNUNET_OK !=
-      db_plugin->insert_aggregation_tracking (db_plugin->cls,
-                                              au->session,
-                                              &au->wtid,
-                                              merchant_pub,
-                                              &au->h_wire,
-                                              h_contract,
-                                              transaction_id,
-                                              au->execution_time,
-                                              coin_pub,
-                                              amount_with_fee,
-                                              deposit_fee))
-  {
-    GNUNET_break (0);
-    return GNUNET_SYSERR;
-  }
-  if (GNUNET_OK !=
-      db_plugin->mark_deposit_done (db_plugin->cls,
-                                    au->session,
-                                    row_id))
-  {
-    GNUNET_break (0);
-    au->failed = GNUNET_YES;
-    return GNUNET_SYSERR;
-  }
-  return GNUNET_OK;
-}
-
-
-
-/**
- * Function called with details about another deposit we
- * can aggregate into an existing aggregation unit.
- *
- * @param cls closure with the `struct AggregationUnit`
- * @param row_id identifies database entry
- * @param merchant_pub public key of the merchant
- * @param coin_pub public key of the coin
- * @param amount_with_fee amount that was deposited including fee
- * @param deposit_fee amount the mint gets to keep as transaction fees
- * @param transaction_id unique transaction ID chosen by the merchant
- * @param h_contract hash of the contract between merchant and customer
- * @param wire_deadline by which the merchant adviced that he would like the
- *        wire transfer to be executed
- * @param wire wire details for the merchant
- * @return #GNUNET_OK to continue to iterate, #GNUNET_SYSERR to stop
- */
-static int
-aggregate_cb (void *cls,
-              unsigned long long row_id,
-              const struct TALER_MerchantPublicKeyP *merchant_pub,
-              const struct TALER_CoinSpendPublicKeyP *coin_pub,
-              const struct TALER_Amount *amount_with_fee,
-              const struct TALER_Amount *deposit_fee,
-              uint64_t transaction_id,
-              const struct GNUNET_HashCode *h_contract,
-              struct GNUNET_TIME_Absolute wire_deadline,
-              const json_t *wire)
-{
-  struct AggregationUnit *au = cls;
-  struct TALER_Amount delta;
-
-  GNUNET_break (0 ==
-                memcmp (&au->merchant_pub,
-                        merchant_pub,
-                        sizeof (struct TALER_MerchantPublicKeyP)));
-  /* compute contribution of this coin after fees */
-  if (GNUNET_OK !=
-      TALER_amount_subtract (&delta,
-                             amount_with_fee,
-                             deposit_fee))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Fatally malformed record at %llu\n",
-                row_id);
-    return GNUNET_SYSERR;
-  }
-  /* add to total */
-  if (GNUNET_OK !=
-      TALER_amount_add (&au->total_amount,
-                        &au->total_amount,
-                        &delta))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Overflow or currency incompatibility during aggregation at %llu\n",
-                row_id);
-    /* Skip this one, but keep going! */
-    return GNUNET_OK;
-  }
-  if (au->rows_offset >= aggregation_limit)
-  {
-    /* Bug: we asked for at most #aggregation_limit results! */
-    GNUNET_break (0);
-    /* Skip this one, but keep going. */
-    return GNUNET_OK;
-  }
-  if (NULL == au->additional_rows)
-    au->additional_rows = GNUNET_new_array (aggregation_limit,
-                                            unsigned long long);
-  /* "append" to our list of rows */
-  au->additional_rows[au->rows_offset++] = row_id;
-  /* insert into aggregation tracking table */
-  if (GNUNET_OK !=
-      db_plugin->insert_aggregation_tracking (db_plugin->cls,
-                                              au->session,
-                                              &au->wtid,
-                                              merchant_pub,
-                                              &au->h_wire,
-                                              h_contract,
-                                              transaction_id,
-                                              au->execution_time,
-                                              coin_pub,
-                                              amount_with_fee,
-                                              deposit_fee))
-  {
-    GNUNET_break (0);
-    return GNUNET_SYSERR;
-  }
-  if (GNUNET_OK !=
-      db_plugin->mark_deposit_done (db_plugin->cls,
-                                    au->session,
-                                    row_id))
-  {
-    GNUNET_break (0);
-    au->failed = GNUNET_YES;
-    return GNUNET_SYSERR;
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Function to be called with the prepared transfer data.
- *
- * @param cls closure with the `struct AggregationUnit`
- * @param buf transaction data to persist, NULL on error
- * @param buf_size number of bytes in @a buf, 0 on error
- */
-static void
-prepare_cb (void *cls,
-            const char *buf,
-            size_t buf_size);
-
-
-/**
- * Main work function that queries the DB and aggregates transactions
- * into larger wire transfers.
- *
- * @param cls pointer to an `int` which we will return from main()
- * @param tc scheduler context
- */
-static void
-run_aggregation (void *cls,
-                 const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
-  int *global_ret = cls;
-  struct TALER_MINTDB_Session *session;
-  struct AggregationUnit *au;
-  unsigned int i;
-  int ret;
-
-  if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
-    return;
-  if (NULL == (session = db_plugin->get_session (db_plugin->cls,
-                                                 GNUNET_NO)))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Failed to obtain database session!\n");
-    *global_ret = GNUNET_SYSERR;
-    return;
-  }
-  if (GNUNET_OK !=
-      db_plugin->start (db_plugin->cls,
-                        session))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Failed to start database transaction!\n");
-    *global_ret = GNUNET_SYSERR;
-    return;
-  }
-  au = GNUNET_new (struct AggregationUnit);
-  au->session = session;
-  ret = db_plugin->get_ready_deposit (db_plugin->cls,
-                                      session,
-                                      &deposit_cb,
-                                      au);
-  if (GNUNET_OK != ret)
-  {
-    GNUNET_free (au);
-    db_plugin->rollback (db_plugin->cls,
-                         session);
-    if (0 != ret)
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                  "Failed to execute deposit iteration!\n");
-      *global_ret = GNUNET_SYSERR;
-      return;
-    }
-    /* nothing to do, sleep for a minute and try again */
-    task = GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_MINUTES,
-                                         &run_aggregation,
-                                         global_ret);
-    return;
-  }
-  /* Now try to find other deposits to aggregate */
-  ret = db_plugin->iterate_matching_deposits (db_plugin->cls,
-                                              session,
-                                              &au->h_wire,
-                                              &au->merchant_pub,
-                                              &aggregate_cb,
-                                              au,
-                                              aggregation_limit);
-  if ( (GNUNET_SYSERR == ret) ||
-       (GNUNET_YES == au->failed) )
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Failed to execute deposit iteration!\n");
-    GNUNET_free_non_null (au->additional_rows);
-    GNUNET_free (au);
-    db_plugin->rollback (db_plugin->cls,
-                         session);
-    *global_ret = GNUNET_SYSERR;
-    return;
-  }
-  /* Round to the unit supported by the wire transfer method */
-  GNUNET_assert (GNUNET_SYSERR !=
-                 wire_plugin->amount_round (wire_plugin->cls,
-                                            &au->total_amount));
-  /* Check if after rounding down, we still have an amount to transfer */
-  if ( (0 == au->total_amount.value) &&
-       (0 == au->total_amount.fraction) )
-  {
-    /* Rollback ongoing transaction, as we will not use the respective
-       WTID and thus need to remove the tracking data */
-    db_plugin->rollback (db_plugin->cls,
-                         session);
-    /* Start another transaction to mark all* of the selected deposits
-       *as minor! */
-    if (GNUNET_OK !=
-        db_plugin->start (db_plugin->cls,
-                          session))
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                  "Failed to start database transaction!\n");
-      *global_ret = GNUNET_SYSERR;
-      GNUNET_free_non_null (au->additional_rows);
-      GNUNET_free (au);
-      return;
-    }
-    /* Mark transactions by row_id as minor */
-    ret = GNUNET_OK;
-    if (GNUNET_OK !=
-        db_plugin->mark_deposit_tiny (db_plugin->cls,
-                                      session,
-                                      au->row_id))
-      ret = GNUNET_SYSERR;
-    else
-      for (i=0;i<au->rows_offset;i++)
-        if (GNUNET_OK !=
-            db_plugin->mark_deposit_tiny (db_plugin->cls,
-                                          session,
-                                          au->additional_rows[i]))
-          ret = GNUNET_SYSERR;
-    /* commit */
-    if (GNUNET_OK !=
-        db_plugin->commit (db_plugin->cls,
-                           session))
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                  "Failed to commit database transaction!\n");
-    }
-    GNUNET_free_non_null (au->additional_rows);
-    GNUNET_free (au);
-    /* start again */
-    task = GNUNET_SCHEDULER_add_now (&run_aggregation,
-                                     global_ret);
-    return;
-  }
-  au->global_ret = global_ret;
-  au->ph = wire_plugin->prepare_wire_transfer (wire_plugin->cls,
-                                               au->wire,
-                                               &au->total_amount,
-                                               &au->wtid,
-                                               &prepare_cb,
-                                               au);
-  /* FIXME: currently we have no clean-up plan on
-     shutdown to call prepare_wire_transfer_cancel!
-     Maybe make 'au' global? */
-  if (NULL == au->ph)
-  {
-    GNUNET_break (0); /* why? how to best recover? */
-    db_plugin->rollback (db_plugin->cls,
-                         session);
-    GNUNET_free_non_null (au->additional_rows);
-    GNUNET_free (au);
-    /* start again */
-    task = GNUNET_SCHEDULER_add_now (&run_aggregation,
-                                     global_ret);
-    return;
-  }
-  /* otherwise we continue with #prepare_cb(), see below */
-}
-
-
-/**
- * Execute the wire transfers that we have committed to
- * do.
- *
- * @param cls pointer to an `int` which we will return from main()
- * @param tc scheduler context
- */
-static void
-run_transfers (void *cls,
-               const struct GNUNET_SCHEDULER_TaskContext *tc);
-
-
-/**
- * Function to be called with the prepared transfer data.
- *
- * @param cls closure with the `struct AggregationUnit`
- * @param buf transaction data to persist, NULL on error
- * @param buf_size number of bytes in @a buf, 0 on error
- */
-static void
-prepare_cb (void *cls,
-            const char *buf,
-            size_t buf_size)
-{
-  struct AggregationUnit *au = cls;
-  int *global_ret = au->global_ret;
-  struct TALER_MINTDB_Session *session = au->session;
-
-  GNUNET_free_non_null (au->additional_rows);
-  GNUNET_free (au);
-  if (NULL == buf)
-  {
-    GNUNET_break (0); /* why? how to best recover? */
-    db_plugin->rollback (db_plugin->cls,
-                         session);
-    /* start again */
-    task = GNUNET_SCHEDULER_add_now (&run_aggregation,
-                                     global_ret);
-    return;
-  }
-
-  /* Commit our intention to execute the wire transfer! */
-  if (GNUNET_OK !=
-      db_plugin->wire_prepare_data_insert (db_plugin->cls,
-                                           session,
-                                           mint_wireformat,
-                                           buf,
-                                           buf_size))
-  {
-    GNUNET_break (0); /* why? how to best recover? */
-    db_plugin->rollback (db_plugin->cls,
-                         session);
-    /* start again */
-    task = GNUNET_SCHEDULER_add_now (&run_aggregation,
-                                     global_ret);
-    return;
-  }
-
-  /* Now we can finally commit the overall transaction, as we are
-     again consistent if all of this passes. */
-  if (GNUNET_OK !=
-      db_plugin->commit (db_plugin->cls,
-                         session))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "Failed to commit database transaction!\n");
-    /* try again */
-    task = GNUNET_SCHEDULER_add_now (&run_aggregation,
-                                     global_ret);
-    return;
-  }
-
-  /* run alternative task: actually do wire transfer! */
-  task = GNUNET_SCHEDULER_add_now (&run_transfers,
-                                   &global_ret);
-}
-
-
-/**
- * Data we keep to #run_transfers().
- */
-struct WirePrepareData
-{
-
-  /**
-   * Database session for all of our transactions.
-   */
-  struct TALER_MINTDB_Session *session;
-
-  /**
-   * Wire execution handle.
-   */
-  struct TALER_WIRE_ExecuteHandle *eh;
-
-  /**
-   * Pointer to global return value. Closure for #run().
-   */
-  int *global_ret;
-
-
-  /**
-   * Row ID of the transfer.
-   */
-  unsigned long long row_id;
-
-};
-
-
-/**
- * Function called with the result from the execute step.
- *
- * @param cls closure with the `struct WirePrepareData`
- * @param success #GNUNET_OK on success, #GNUNET_SYSERR on failure
- * @param emsg NULL on success, otherwise an error message
- */
-static void
-wire_confirm_cb (void *cls,
-                 int success,
-                 const char *emsg)
-{
-  struct WirePrepareData *wpd = cls;
-  int *global_ret = wpd->global_ret;
-  struct TALER_MINTDB_Session *session = wpd->session;
-
-  wpd->eh = NULL;
-  if (GNUNET_SYSERR == success)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Wire transaction failed: %s\n",
-                emsg);
-    db_plugin->rollback (db_plugin->cls,
-                         session);
-    *global_ret = GNUNET_SYSERR;
-    GNUNET_free (wpd);
-    return;
-  }
-  if (GNUNET_OK !=
-      db_plugin->wire_prepare_data_mark_finished (db_plugin->cls,
-                                                  session,
-                                                  wpd->row_id))
-  {
-    GNUNET_break (0); /* why!? */
-    db_plugin->rollback (db_plugin->cls,
-                         session);
-    *global_ret = GNUNET_SYSERR;
-    GNUNET_free (wpd);
-    return;
-  }
-  GNUNET_free (wpd);
-  if (GNUNET_OK !=
-      db_plugin->commit (db_plugin->cls,
-                         session))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "Failed to commit database transaction!\n");
-    /* try again */
-    task = GNUNET_SCHEDULER_add_now (&run_aggregation,
-                                     global_ret);
-    return;
-  }
-  /* continue with #run_transfers(), just to guard
-     against the unlikely case that there are more. */
-  task = GNUNET_SCHEDULER_add_now (&run_transfers,
-                                   &global_ret);
-
-}
-
-
-/**
- * Callback with data about a prepared transaction.
- *
- * @param cls closure with the `struct WirePrepareData`
- * @param rowid row identifier used to mark prepared transaction as done
- * @param buf transaction data that was persisted, NULL on error
- * @param buf_size number of bytes in @a buf, 0 on error
- */
-static void
-wire_prepare_cb (void *cls,
-                 unsigned long long rowid,
-                 const char *buf,
-                 size_t buf_size)
-{
-  struct WirePrepareData *wpd = cls;
-  int *global_ret = wpd->global_ret;
-
-  wpd->row_id = rowid;
-  wpd->eh = wire_plugin->execute_wire_transfer (wire_plugin->cls,
-                                                buf,
-                                                buf_size,
-                                                &wire_confirm_cb,
-                                                wpd);
-  /* FIXME: currently we have no clean-up plan on
-     shutdown to call execute_wire_transfer_cancel!
-     Maybe make 'wpd' global? */
-  if (NULL == wpd->eh)
-  {
-    GNUNET_break (0); /* why? how to best recover? */
-    db_plugin->rollback (db_plugin->cls,
-                         wpd->session);
-    *global_ret = GNUNET_SYSERR;
-    GNUNET_free (wpd);
-    return;
-  }
-}
-
-
-/**
- * Execute the wire transfers that we have committed to
- * do.
- *
- * @param cls pointer to an `int` which we will return from main()
- * @param tc scheduler context
- */
-static void
-run_transfers (void *cls,
-               const struct GNUNET_SCHEDULER_TaskContext *tc)
-{
-  int *global_ret = cls;
-  int ret;
-  struct WirePrepareData *wpd;
-  struct TALER_MINTDB_Session *session;
-
-  if (0 != (tc->reason & GNUNET_SCHEDULER_REASON_SHUTDOWN))
-    return;
-  if (NULL == (session = db_plugin->get_session (db_plugin->cls,
-                                                 GNUNET_NO)))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Failed to obtain database session!\n");
-    *global_ret = GNUNET_SYSERR;
-    return;
-  }
-  if (GNUNET_OK !=
-      db_plugin->start (db_plugin->cls,
-                        session))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Failed to start database transaction!\n");
-    *global_ret = GNUNET_SYSERR;
-    return;
-  }
-  wpd = GNUNET_new (struct WirePrepareData);
-  wpd->session = session;
-  wpd->global_ret = global_ret;
-  ret = db_plugin->wire_prepare_data_get (db_plugin->cls,
-                                          session,
-                                          mint_wireformat,
-                                          &wire_prepare_cb,
-                                          wpd);
-  if (GNUNET_SYSERR == ret)
-  {
-    GNUNET_break (0); /* why? how to best recover? */
-    db_plugin->rollback (db_plugin->cls,
-                         session);
-    *global_ret = GNUNET_SYSERR;
-    GNUNET_free (wpd);
-    return;
-  }
-  if (GNUNET_NO == ret)
-  {
-    /* no more prepared wire transfers, go back to aggregation! */
-    db_plugin->rollback (db_plugin->cls,
-                         session);
-    task = GNUNET_SCHEDULER_add_now (&run_aggregation,
-                                     global_ret);
-    GNUNET_free (wpd);
-    return;
-  }
-  /* otherwise, continues in #wire_prepare_cb() */
-}
-
-
-/**
- * The main function of the taler-mint-httpd server ("the mint").
- *
- * @param argc number of arguments from the command line
- * @param argv command line arguments
- * @return 0 ok, 1 on error
- */
-int
-main (int argc,
-      char *const *argv)
-{
-  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
-    {'d', "mint-dir", "DIR",
-     "mint directory with configuration and keys for operating the mint", 1,
-     &GNUNET_GETOPT_set_filename, &mint_directory},
-    {'f', "format", "WIREFORMAT",
-     "wireformat to use, overrides WIREFORMAT option in [mint] section", 1,
-     &GNUNET_GETOPT_set_filename, &mint_wireformat},
-    TALER_GETOPT_OPTION_HELP ("background process that aggregates and executes wire transfers to merchants"),
-    GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
-    GNUNET_GETOPT_OPTION_END
-  };
-  int ret = GNUNET_OK;
-
-  GNUNET_assert (GNUNET_OK ==
-                 GNUNET_log_setup ("taler-mint-aggregator",
-                                   "INFO",
-                                   NULL));
-  if (0 >=
-      GNUNET_GETOPT_run ("taler-mint-aggregator",
-                         options,
-                         argc, argv))
-    return 1;
-  if (NULL == mint_directory)
-  {
-    fprintf (stderr,
-             "Mint directory not specified\n");
-    return 1;
-  }
-  if (GNUNET_OK !=
-      mint_serve_process_config (mint_directory))
-  {
-    return 1;
-  }
-
-  GNUNET_SCHEDULER_run (&run_transfers, &ret);
-
-  TALER_MINTDB_plugin_unload (db_plugin);
-  TALER_WIRE_plugin_unload (wire_plugin);
-  return (GNUNET_SYSERR == ret) ? 1 : 0;
-}
-
-/* end of taler-mint-aggregator.c */
diff --git a/src/mint/taler-mint-httpd.c b/src/mint/taler-mint-httpd.c
deleted file mode 100644
index 5d6aa0589..000000000
--- a/src/mint/taler-mint-httpd.c
+++ /dev/null
@@ -1,749 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-
-/**
- * @file taler-mint-httpd.c
- * @brief Serve the HTTP interface of the mint
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <gnunet/gnunet_util_lib.h>
-#include <jansson.h>
-#include <microhttpd.h>
-#include <pthread.h>
-#include "taler-mint-httpd_parsing.h"
-#include "taler-mint-httpd_mhd.h"
-#include "taler-mint-httpd_admin.h"
-#include "taler-mint-httpd_deposit.h"
-#include "taler-mint-httpd_reserve.h"
-#include "taler-mint-httpd_wire.h"
-#include "taler-mint-httpd_refresh.h"
-#include "taler-mint-httpd_tracking.h"
-#include "taler-mint-httpd_keystate.h"
-#if HAVE_DEVELOPER
-#include "taler-mint-httpd_test.h"
-#endif
-#include "taler_mintdb_plugin.h"
-#include "taler-mint-httpd_validation.h"
-
-/**
- * Which currency is used by this mint?
- */
-char *TMH_mint_currency_string;
-
-/**
- * Should we return "Connection: close" in each response?
- */
-int TMH_mint_connection_close;
-
-/**
- * Base directory of the mint (global)
- */
-char *TMH_mint_directory;
-
-/**
- * The mint's configuration (global)
- */
-struct GNUNET_CONFIGURATION_Handle *cfg;
-
-/**
- * Master public key (according to the
- * configuration in the mint directory).
- */
-struct GNUNET_CRYPTO_EddsaPublicKey TMH_master_public_key;
-
-/**
- * Our DB plugin.
- */
-struct TALER_MINTDB_Plugin *TMH_plugin;
-
-/**
- * Are we running in test mode?
- */
-int TMH_test_mode;
-
-/**
- * Default timeout in seconds for HTTP requests.
- */
-static unsigned int connection_timeout = 30;
-
-/**
- * The HTTP Daemon.
- */
-static struct MHD_Daemon *mydaemon;
-
-/**
- * Port to run the daemon on.
- */
-static uint16_t serve_port;
-
-
-/**
- * Function called whenever MHD is done with a request.  If the
- * request was a POST, we may have stored a `struct Buffer *` in the
- * @a con_cls that might still need to be cleaned up.  Call the
- * respective function to free the memory.
- *
- * @param cls client-defined closure
- * @param connection connection handle
- * @param con_cls value as set by the last call to
- *        the #MHD_AccessHandlerCallback
- * @param toe reason for request termination
- * @see #MHD_OPTION_NOTIFY_COMPLETED
- * @ingroup request
- */
-static void
-handle_mhd_completion_callback (void *cls,
-                                struct MHD_Connection *connection,
-                                void **con_cls,
-                                enum MHD_RequestTerminationCode toe)
-{
-  if (NULL == *con_cls)
-    return;
-  TMH_PARSE_post_cleanup_callback (*con_cls);
-  *con_cls = NULL;
-}
-
-
-/**
- * Handle a request coming from libmicrohttpd.
- *
- * @param cls closure for MHD daemon (unused)
- * @param connection the connection
- * @param url the requested url
- * @param method the method (POST, GET, ...)
- * @param version HTTP version (ignored)
- * @param upload_data request data
- * @param upload_data_size size of @a upload_data in bytes
- * @param con_cls closure for request (a `struct Buffer *`)
- * @return MHD result code
- */
-static int
-handle_mhd_request (void *cls,
-                    struct MHD_Connection *connection,
-                    const char *url,
-                    const char *method,
-                    const char *version,
-                    const char *upload_data,
-                    size_t *upload_data_size,
-                    void **con_cls)
-{
-  static struct TMH_RequestHandler handlers[] =
-    {
-      /* Landing page, tell humans to go away. */
-      { "/", MHD_HTTP_METHOD_GET, "text/plain",
-        "Hello, I'm the Taler mint. This HTTP server is not for humans.\n", 0,
-        &TMH_MHD_handler_static_response, MHD_HTTP_OK },
-      /* /robots.txt: disallow everything */
-      { "/robots.txt", MHD_HTTP_METHOD_GET, "text/plain",
-        "User-agent: *\nDisallow: /\n", 0,
-        &TMH_MHD_handler_static_response, MHD_HTTP_OK },
-      /* AGPL licensing page, redirect to source. As per the AGPL-license,
-         every deployment is required to offer the user a download of the
-         source. We make this easy by including a redirect to the source
-         here. */
-      { "/agpl", MHD_HTTP_METHOD_GET, "text/plain",
-        NULL, 0,
-        &TMH_MHD_handler_agpl_redirect, MHD_HTTP_FOUND },
-
-      /* Return key material and fundamental properties for this mint */
-      { "/keys", MHD_HTTP_METHOD_GET, "application/json",
-        NULL, 0,
-        &TMH_KS_handler_keys, MHD_HTTP_OK },
-      { "/keys", NULL, "text/plain",
-        "Only GET is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      /* Requests for wiring information */
-      { "/wire", MHD_HTTP_METHOD_GET, "application/json",
-        NULL, 0,
-        &TMH_WIRE_handler_wire, MHD_HTTP_OK },
-      { "/wire", NULL, "text/plain",
-        "Only GET is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      { "/wire/test", MHD_HTTP_METHOD_GET, "application/json",
-        NULL, 0,
-        &TMH_WIRE_handler_wire_test, MHD_HTTP_FOUND },
-      { "/wire/test", NULL, "text/plain",
-        "Only GET is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      { "/wire/sepa", MHD_HTTP_METHOD_GET, "application/json",
-        NULL, 0,
-        &TMH_WIRE_handler_wire_sepa, MHD_HTTP_OK },
-      { "/wire/sepa", NULL, "text/plain",
-        "Only GET is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      /* Withdrawing coins / interaction with reserves */
-      { "/reserve/status", MHD_HTTP_METHOD_GET, "application/json",
-        NULL, 0,
-        &TMH_RESERVE_handler_reserve_status, MHD_HTTP_OK },
-      { "/reserve/status", NULL, "text/plain",
-        "Only GET is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      { "/reserve/withdraw", MHD_HTTP_METHOD_POST, "application/json",
-        NULL, 0,
-        &TMH_RESERVE_handler_reserve_withdraw, MHD_HTTP_OK },
-      { "/reserve/withdraw", NULL, "text/plain",
-        "Only POST is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      /* Depositing coins */
-      { "/deposit", MHD_HTTP_METHOD_POST, "application/json",
-        NULL, 0,
-        &TMH_DEPOSIT_handler_deposit, MHD_HTTP_OK },
-      { "/deposit", NULL, "text/plain",
-        "Only POST is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      /* Dealing with change */
-      { "/refresh/melt", MHD_HTTP_METHOD_POST, "application/json",
-        NULL, 0,
-        &TMH_REFRESH_handler_refresh_melt, MHD_HTTP_OK },
-      { "/refresh/melt", NULL, "text/plain",
-        "Only POST is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      { "/refresh/reveal", MHD_HTTP_METHOD_POST, "application/json",
-        NULL, 0,
-        &TMH_REFRESH_handler_refresh_reveal, MHD_HTTP_OK },
-      { "/refresh/reveal", NULL, "text/plain",
-        "Only POST is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      { "/refresh/reveal", MHD_HTTP_METHOD_POST, "application/json",
-        NULL, 0,
-        &TMH_REFRESH_handler_refresh_reveal, MHD_HTTP_OK },
-      { "/refresh/reveal", NULL, "text/plain",
-        "Only POST is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      { "/refresh/link", MHD_HTTP_METHOD_GET, "application/json",
-        NULL, 0,
-        &TMH_REFRESH_handler_refresh_link, MHD_HTTP_OK },
-      { "/refresh/link", NULL, "text/plain",
-        "Only GET is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      /* FIXME: maybe conditionally compile these? */
-      { "/admin/add/incoming", MHD_HTTP_METHOD_POST, "application/json",
-        NULL, 0,
-        &TMH_ADMIN_handler_admin_add_incoming, MHD_HTTP_OK },
-      { "/admin/add/incoming", NULL, "text/plain",
-        "Only POST is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      { "/wire/deposits", MHD_HTTP_METHOD_GET, "application/json",
-        NULL, 0,
-        &TMH_TRACKING_handler_wire_deposits, MHD_HTTP_OK },
-      { "/wire/deposits", NULL, "text/plain",
-        "Only GET is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-      { "/deposit/wtid", MHD_HTTP_METHOD_POST, "application/json",
-        NULL, 0,
-        &TMH_TRACKING_handler_deposit_wtid, MHD_HTTP_OK },
-      { "/deposit/wtid", NULL, "text/plain",
-        "Only POST is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-#if HAVE_DEVELOPER
-      /* Client crypto-interoperability test functions */
-      { "/test", MHD_HTTP_METHOD_POST, "application/json",
-        NULL, 0,
-        &TMH_TEST_handler_test, MHD_HTTP_OK },
-      { "/test", NULL, "text/plain",
-        "Only POST is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      { "/test/base32", MHD_HTTP_METHOD_POST, "application/json",
-	NULL, 0,
-	&TMH_TEST_handler_test_base32, MHD_HTTP_OK },
-      { "/test/base32", NULL, "text/plain",
-        "Only POST is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      { "/test/encrypt", MHD_HTTP_METHOD_POST, "application/json",
-        NULL, 0,
-	&TMH_TEST_handler_test_encrypt, MHD_HTTP_OK },
-      { "/test/encrypt", NULL, "text/plain",
-        "Only POST is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      { "/test/hkdf", MHD_HTTP_METHOD_POST, "application/json",
-	NULL, 0,
-	&TMH_TEST_handler_test_hkdf, MHD_HTTP_OK },
-      { "/test/hkdf", NULL, "text/plain",
-        "Only POST is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      { "/test/ecdhe", MHD_HTTP_METHOD_POST, "application/json",
-	NULL, 0,
-	&TMH_TEST_handler_test_ecdhe, MHD_HTTP_OK },
-      { "/test/ecdhe", NULL, "text/plain",
-        "Only POST is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      { "/test/eddsa", MHD_HTTP_METHOD_POST, "application/json",
-	NULL, 0,
-	&TMH_TEST_handler_test_eddsa, MHD_HTTP_OK },
-      { "/test/eddsa", NULL, "text/plain",
-        "Only POST is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      { "/test/rsa/get", MHD_HTTP_METHOD_GET, "application/json",
-	NULL, 0,
-	&TMH_TEST_handler_test_rsa_get, MHD_HTTP_OK },
-      { "/test/rsa/get", NULL, "text/plain",
-        "Only GET is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      { "/test/rsa/sign", MHD_HTTP_METHOD_POST, "application/json",
-	NULL, 0,
-	&TMH_TEST_handler_test_rsa_sign, MHD_HTTP_OK },
-      { "/test/rsa/sign", NULL, "text/plain",
-        "Only POST is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-
-      { "/test/transfer", MHD_HTTP_METHOD_POST, "application/json",
-	NULL, 0,
-	&TMH_TEST_handler_test_transfer, MHD_HTTP_OK },
-      { "/test/transfer", NULL, "text/plain",
-        "Only POST is allowed", 0,
-        &TMH_MHD_handler_send_json_pack_error, MHD_HTTP_METHOD_NOT_ALLOWED },
-#endif
-
-      { NULL, NULL, NULL, NULL, 0, 0 }
-    };
-  static struct TMH_RequestHandler h404 =
-    {
-      "", NULL, "text/html",
-      "<html><title>404: not found</title></html>", 0,
-      &TMH_MHD_handler_static_response, MHD_HTTP_NOT_FOUND
-    };
-  struct TMH_RequestHandler *rh;
-  unsigned int i;
-
-  GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-              "Handling request for URL '%s'\n",
-              url);
-  for (i=0;NULL != handlers[i].url;i++)
-  {
-    rh = &handlers[i];
-    if ( (0 == strcasecmp (url,
-                           rh->url)) &&
-         ( (NULL == rh->method) ||
-           (0 == strcasecmp (method,
-                             rh->method)) ) )
-      return rh->handler (rh,
-                          connection,
-                          con_cls,
-                          upload_data,
-                          upload_data_size);
-  }
-  return TMH_MHD_handler_static_response (&h404,
-                                          connection,
-                                          con_cls,
-                                          upload_data,
-                                          upload_data_size);
-}
-
-
-/**
- * Load configuration parameters for the mint
- * server into the corresponding global variables.
- *
- * @param mint_directory the mint's directory
- * @return #GNUNET_OK on success
- */
-static int
-mint_serve_process_config (const char *mint_directory)
-{
-  unsigned long long port;
-  char *TMH_master_public_key_str;
-
-  cfg = TALER_config_load (mint_directory);
-  if (NULL == cfg)
-  {
-    fprintf (stderr,
-             "Failed to load mint configuration\n");
-    return GNUNET_SYSERR;
-  }
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_string (cfg,
-                                             "mint",
-                                             "currency",
-                                             &TMH_mint_currency_string))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               "mint",
-                               "currency");
-    return GNUNET_SYSERR;
-  }
-  if (strlen (TMH_mint_currency_string) >= TALER_CURRENCY_LEN)
-  {
-    fprintf (stderr,
-             "Currency `%s' longer than the allowed limit of %u characters.",
-             TMH_mint_currency_string,
-             (unsigned int) TALER_CURRENCY_LEN);
-    return GNUNET_SYSERR;
-  }
-  if (GNUNET_OK !=
-      TMH_VALIDATION_init (cfg))
-    return GNUNET_SYSERR;
-
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_string (cfg,
-                                             "mint",
-                                             "master_public_key",
-                                             &TMH_master_public_key_str))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               "mint",
-                               "master_public_key");
-    TMH_VALIDATION_done ();
-    return GNUNET_SYSERR;
-  }
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_eddsa_public_key_from_string (TMH_master_public_key_str,
-                                                  strlen (TMH_master_public_key_str),
-                                                  &TMH_master_public_key))
-  {
-    fprintf (stderr,
-             "Invalid master public key given in mint configuration.");
-    GNUNET_free (TMH_master_public_key_str);
-    TMH_VALIDATION_done ();
-    return GNUNET_SYSERR;
-  }
-  GNUNET_free (TMH_master_public_key_str);
-
-  if (NULL ==
-      (TMH_plugin = TALER_MINTDB_plugin_load (cfg)))
-  {
-    fprintf (stderr,
-             "Failed to initialize DB subsystem\n");
-    TMH_VALIDATION_done ();
-    return GNUNET_SYSERR;
-  }
-  if (GNUNET_YES ==
-      GNUNET_CONFIGURATION_get_value_yesno (cfg,
-                                            "mint",
-                                            "TESTRUN"))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "Running in TEST mode! Database contents will not persist!\n");
-    TMH_test_mode = GNUNET_YES;
-    TMH_plugin->create_tables (TMH_plugin->cls,
-                               GNUNET_YES);
-  }
-
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_number (cfg,
-                                             "mint",
-                                             "port",
-                                             &port))
-  {
-    GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
-                               "mint",
-                               "port",
-                               "port number required");
-    TMH_VALIDATION_done ();
-    return GNUNET_SYSERR;
-  }
-
-  if ( (0 == port) ||
-       (port > UINT16_MAX) )
-  {
-    fprintf (stderr,
-             "Invalid configuration (value out of range): %llu is not a valid port\n",
-             port);
-    TMH_VALIDATION_done ();
-    return GNUNET_SYSERR;
-  }
-  serve_port = (uint16_t) port;
-
-  return GNUNET_OK;
-}
-
-
-/* Developer logic for supporting the `-f' option. */
-#if HAVE_DEVELOPER
-
-/**
- * Option `-f' (specifies an input file to give to the HTTP server).
- */
-static char *input_filename;
-
-
-/**
- * Run 'nc' or 'ncat' as a fake HTTP client using #input_filename
- * as the input for the request.  If launching the client worked,
- * run the #TMH_KS_loop() event loop as usual.
- *
- * @return #GNUNET_OK
- */
-static int
-run_fake_client ()
-{
-  pid_t cld;
-  char ports[6];
-  int fd;
-  int ret;
-  int status;
-
-  fd = open (input_filename, O_RDONLY);
-  if (-1 == fd)
-  {
-    fprintf (stderr,
-             "Failed to open `%s': %s\n",
-             input_filename,
-             strerror (errno));
-    return GNUNET_SYSERR;
-  }
-  /* Fake HTTP client request with #input_filename as input.
-     We do this using the nc tool. */
-  GNUNET_snprintf (ports,
-                   sizeof (ports),
-                   "%u",
-                   serve_port);
-  if (0 == (cld = fork()))
-  {
-    GNUNET_break (0 == close (0));
-    GNUNET_break (0 == dup2 (fd, 0));
-    GNUNET_break (0 == close (fd));
-    if ( (0 != execlp ("nc",
-                       "nc",
-                       "localhost",
-                       ports,
-                       "-w", "30",
-                       NULL)) &&
-         (0 != execlp ("ncat",
-                       "ncat",
-                       "localhost",
-                       ports,
-                       "-i", "30",
-                       NULL)) )
-    {
-      fprintf (stderr,
-               "Failed to run both `nc' and `ncat': %s\n",
-               strerror (errno));
-    }
-    _exit (1);
-  }
-  /* parent process */
-  GNUNET_break (0 == close (fd));
-  ret = TMH_KS_loop ();
-  if (cld != waitpid (cld, &status, 0))
-    fprintf (stderr,
-             "Waiting for `nc' child failed: %s\n",
-             strerror (errno));
-  return ret;
-}
-
-
-/**
- * Signature of the callback used by MHD to notify the application
- * about completed connections.  If we are running in test-mode with
- * an #input_filename, this function is used to terminate the HTTPD
- * after the first request has been processed.
- *
- * @param cls client-defined closure, NULL
- * @param connection connection handle (ignored)
- * @param socket_context socket-specific pointer (ignored)
- * @param toe reason for connection notification
- */
-static void
-connection_done (void *cls,
-                 struct MHD_Connection *connection,
-                 void **socket_context,
-                 enum MHD_ConnectionNotificationCode toe)
-{
-  /* We only act if the connection is closed. */
-  if (MHD_CONNECTION_NOTIFY_CLOSED != toe)
-    return;
-  /* This callback is also present if the option wasn't, so
-     make sure the option was actually set. */
-  if (NULL == input_filename)
-    return;
-  /* We signal ourselves to terminate. */
-  if (0 != kill (getpid(),
-                 SIGTERM))
-    GNUNET_log_strerror (GNUNET_ERROR_TYPE_ERROR,
-                         "kill");
-}
-
-/* end of HAVE_DEVELOPER */
-#endif
-
-
-/**
- * Function called for logging by MHD.
- *
- * @param cls closure, NULL
- * @param fm format string (`printf()`-style)
- * @param ap arguments to @a fm
- */
-static void
-handle_mhd_logs (void *cls,
-                 const char *fm,
-                 va_list ap)
-{
-  char buf[2048];
-
-  vsnprintf (buf,
-             sizeof (buf),
-             fm,
-             ap);
-  GNUNET_log_from (GNUNET_ERROR_TYPE_WARNING,
-                   "libmicrohttpd",
-                   "%s",
-                   buf);
-}
-
-
-/**
- * The main function of the taler-mint-httpd server ("the mint").
- *
- * @param argc number of arguments from the command line
- * @param argv command line arguments
- * @return 0 ok, 1 on error
- */
-int
-main (int argc,
-      char *const *argv)
-{
-  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
-    {'C', "connection-close", NULL,
-     "force HTTP connections to be closed after each request", 0,
-     &GNUNET_GETOPT_set_one, &TMH_mint_connection_close},
-    {'d', "mint-dir", "DIR",
-     "mint directory with configuration and keys for operating the mint", 1,
-     &GNUNET_GETOPT_set_filename, &TMH_mint_directory},
-    {'t', "timeout", "SECONDS",
-     "after how long do connections timeout by default (in seconds)", 1,
-     &GNUNET_GETOPT_set_uint, &connection_timeout},
-#if HAVE_DEVELOPER
-    {'f', "file-input", "FILENAME",
-     "run in test-mode using FILENAME as the HTTP request to process", 1,
-     &GNUNET_GETOPT_set_filename, &input_filename},
-#endif
-    TALER_GETOPT_OPTION_HELP ("HTTP server providing a RESTful API to access a Taler mint"),
-    GNUNET_GETOPT_OPTION_VERSION (VERSION "-" VCS_VERSION),
-    GNUNET_GETOPT_OPTION_END
-  };
-  int ret;
-
-  GNUNET_assert (GNUNET_OK ==
-                 GNUNET_log_setup ("taler-mint-httpd",
-                                   "INFO",
-                                   NULL));
-  if (0 >=
-      GNUNET_GETOPT_run ("taler-mint-httpd",
-                         options,
-                         argc, argv))
-    return 1;
-  if (NULL == TMH_mint_directory)
-  {
-    fprintf (stderr,
-             "Mint directory not specified\n");
-    return 1;
-  }
-
-  if (GNUNET_OK !=
-      mint_serve_process_config (TMH_mint_directory))
-    return 1;
-
-  mydaemon = MHD_start_daemon (MHD_USE_SELECT_INTERNALLY | MHD_USE_DEBUG,
-                               serve_port,
-                               NULL, NULL,
-                               &handle_mhd_request, NULL,
-                               MHD_OPTION_EXTERNAL_LOGGER, &handle_mhd_logs, NULL,
-                               MHD_OPTION_NOTIFY_COMPLETED, &handle_mhd_completion_callback, NULL,
-                               MHD_OPTION_CONNECTION_TIMEOUT, connection_timeout,
-#if HAVE_DEVELOPER
-                               MHD_OPTION_NOTIFY_CONNECTION, &connection_done, NULL,
-#endif
-                               MHD_OPTION_END);
-
-  if (NULL == mydaemon)
-  {
-    fprintf (stderr,
-             "Failed to start HTTP server.\n");
-    return 1;
-  }
-#if HAVE_DEVELOPER
-  if (NULL != input_filename)
-  {
-    /* run only the testfile input, then terminate */
-    ret = run_fake_client ();
-  }
-  else
-  {
-    /* normal behavior */
-    ret = TMH_KS_loop ();
-  }
-#else
-  /* normal behavior */
-  ret = TMH_KS_loop ();
-#endif
-
-  switch (ret)
-  {
-  case GNUNET_OK:
-  case GNUNET_SYSERR:
-    MHD_stop_daemon (mydaemon);
-    break;
-  case GNUNET_NO:
-    {
-      MHD_socket sock = MHD_quiesce_daemon (mydaemon);
-
-      /* FIXME #3474: fork another MHD, passing on the listen socket! */
-      while (0 != MHD_get_daemon_info (mydaemon,
-                                       MHD_DAEMON_INFO_CURRENT_CONNECTIONS)->num_connections)
-        sleep (1);
-      MHD_stop_daemon (mydaemon);
-
-      close (sock); /* FIXME: done like this because #3474 is open */
-    }
-    break;
-  default:
-    GNUNET_break (0);
-    MHD_stop_daemon (mydaemon);
-    break;
-  }
-
-  if (GNUNET_YES == TMH_test_mode)
-  {
-    struct TALER_MINTDB_Session *session;
-
-    session = TMH_plugin->get_session (TMH_plugin->cls,
-                                       GNUNET_YES);
-    if (NULL == session)
-      GNUNET_break (0);
-    else
-      TMH_plugin->drop_temporary (TMH_plugin->cls,
-                                  session);
-  }
-  TALER_MINTDB_plugin_unload (TMH_plugin);
-  TMH_VALIDATION_done ();
-  return (GNUNET_SYSERR == ret) ? 1 : 0;
-}
-
-/* end of taler-mint-httpd.c */
diff --git a/src/mint/taler-mint-httpd.h b/src/mint/taler-mint-httpd.h
deleted file mode 100644
index d45325aa6..000000000
--- a/src/mint/taler-mint-httpd.h
+++ /dev/null
@@ -1,128 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd.h
- * @brief Global declarations for the mint
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- *
- * FIXME: Consider which of these need to really be globals...
- */
-#ifndef TALER_MINT_HTTPD_H
-#define TALER_MINT_HTTPD_H
-
-#include <microhttpd.h>
-
-
-/**
- * Which currency is used by this mint?
- */
-extern char *TMH_mint_currency_string;
-
-/**
- * Should we return "Connection: close" in each response?
- */
-extern int TMH_mint_connection_close;
-
-/**
- * The mint's configuration.
- */
-extern struct GNUNET_CONFIGURATION_Handle *cfg;
-
-/**
- * Are we running in test mode?
- */
-extern int TMH_test_mode;
-
-/**
- * Main directory with mint data.
- */
-extern char *TMH_mint_directory;
-
-/**
- * Master public key (according to the
- * configuration in the mint directory).
- */
-extern struct GNUNET_CRYPTO_EddsaPublicKey TMH_master_public_key;
-
-/**
- * Private key of the mint we use to sign messages.
- */
-extern struct GNUNET_CRYPTO_EddsaPrivateKey TMH_mint_private_signing_key;
-
-/**
- * Our DB plugin.
- */
-extern struct TALER_MINTDB_Plugin *TMH_plugin;
-
-
-/**
- * @brief Struct describing an URL and the handler for it.
- */
-struct TMH_RequestHandler
-{
-
-  /**
-   * URL the handler is for.
-   */
-  const char *url;
-
-  /**
-   * Method the handler is for, NULL for "all".
-   */
-  const char *method;
-
-  /**
-   * Mime type to use in reply (hint, can be NULL).
-   */
-  const char *mime_type;
-
-  /**
-   * Raw data for the @e handler
-   */
-  const void *data;
-
-  /**
-   * Number of bytes in @e data, 0 for 0-terminated.
-   */
-  size_t data_size;
-
-  /**
-   * Function to call to handle the request.
-   *
-   * @param rh this struct
-   * @param mime_type the @e mime_type for the reply (hint, can be NULL)
-   * @param connection the MHD connection to handle
-   * @param[in,out] connection_cls the connection's closure (can be updated)
-   * @param upload_data upload data
-   * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
-   * @return MHD result code
-   */
-  int (*handler)(struct TMH_RequestHandler *rh,
-                 struct MHD_Connection *connection,
-                 void **connection_cls,
-                 const char *upload_data,
-                 size_t *upload_data_size);
-
-  /**
-   * Default response code.
-   */
-  int response_code;
-};
-
-
-#endif
diff --git a/src/mint/taler-mint-httpd_admin.c b/src/mint/taler-mint-httpd_admin.c
deleted file mode 100644
index e6f186f0b..000000000
--- a/src/mint/taler-mint-httpd_admin.c
+++ /dev/null
@@ -1,164 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_admin.c
- * @brief Handle /admin/ requests
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <gnunet/gnunet_util_lib.h>
-#include <jansson.h>
-#include "taler-mint-httpd_admin.h"
-#include "taler-mint-httpd_parsing.h"
-#include "taler-mint-httpd_responses.h"
-#include "taler-mint-httpd_validation.h"
-
-
-/**
- * Check permissions (we only allow access to /admin/ from loopback).
- *
- * @param connection connection to perform access check for
- * @return #GNUNET_OK if permitted,
- *         #GNUNET_NO if denied and error was queued,
- *         #GNUNET_SYSERR if denied and we failed to report
- */
-static int
-check_permissions (struct MHD_Connection *connection)
-{
-  const union MHD_ConnectionInfo *ci;
-  const struct sockaddr *addr;
-  int res;
-
-  ci = MHD_get_connection_info (connection,
-                                MHD_CONNECTION_INFO_CLIENT_ADDRESS);
-  if (NULL == ci)
-  {
-    GNUNET_break (0);
-    res = TMH_RESPONSE_reply_internal_error (connection,
-                                             "Failed to verify client address");
-    return (MHD_YES == res) ? GNUNET_NO : GNUNET_SYSERR;
-  }
-  addr = ci->client_addr;
-  switch (addr->sa_family)
-  {
-  case AF_INET:
-    {
-      const struct sockaddr_in *sin = (const struct sockaddr_in *) addr;
-
-      if (INADDR_LOOPBACK != ntohl (sin->sin_addr.s_addr))
-      {
-        res = TMH_RESPONSE_reply_permission_denied (connection,
-                                                    "/admin/ only allowed via loopback");
-        return (MHD_YES == res) ? GNUNET_NO : GNUNET_SYSERR;
-      }
-      break;
-    }
-  case AF_INET6:
-    {
-      const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *) addr;
-
-      if (! IN6_IS_ADDR_LOOPBACK (&sin6->sin6_addr))
-      {
-        res = TMH_RESPONSE_reply_permission_denied (connection,
-                                                    "/admin/ only allowed via loopback");
-        return (MHD_YES == res) ? GNUNET_NO : GNUNET_SYSERR;
-      }
-      break;
-    }
-  default:
-    GNUNET_break (0);
-    res = TMH_RESPONSE_reply_internal_error (connection,
-                                             "Unsupported AF");
-    return (MHD_YES == res) ? GNUNET_NO : GNUNET_SYSERR;
-  }
-  return GNUNET_OK;
-}
-
-
-
-/**
- * Handle a "/admin/add/incoming" request.  Parses the
- * given "reserve_pub", "amount", "transaction" and "h_wire"
- * details and adds the respective transaction to the database.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_ADMIN_handler_admin_add_incoming (struct TMH_RequestHandler *rh,
-                                      struct MHD_Connection *connection,
-                                      void **connection_cls,
-                                      const char *upload_data,
-                                      size_t *upload_data_size)
-{
-  struct TALER_ReservePublicKeyP reserve_pub;
-  struct TALER_Amount amount;
-  struct GNUNET_TIME_Absolute at;
-  json_t *wire;
-  json_t *root;
-  struct TMH_PARSE_FieldSpecification spec[] = {
-    TMH_PARSE_member_fixed ("reserve_pub", &reserve_pub),
-    TMH_PARSE_member_amount ("amount", &amount),
-    TMH_PARSE_member_time_abs ("execution_date", &at),
-    TMH_PARSE_member_object ("wire", &wire),
-    TMH_PARSE_MEMBER_END
-  };
-  int res;
-
-  res = check_permissions (connection);
-  if (GNUNET_OK != res)
-    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
-  res = TMH_PARSE_post_json (connection,
-                             connection_cls,
-                             upload_data,
-                             upload_data_size,
-                             &root);
-  if (GNUNET_SYSERR == res)
-    return MHD_NO;
-  if ( (GNUNET_NO == res) || (NULL == root) )
-    return MHD_YES;
-  res = TMH_PARSE_json_data (connection,
-                             root,
-                             spec);
-  json_decref (root);
-  if (GNUNET_OK != res)
-  {
-    GNUNET_break_op (0);
-    json_decref (root);
-    return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
-  }
-  if (GNUNET_YES !=
-      TMH_json_validate_wireformat (wire))
-  {
-    GNUNET_break_op (0);
-    TMH_PARSE_release_data (spec);
-    return TMH_RESPONSE_reply_arg_unknown (connection,
-                                           "wire");
-  }
-  res = TMH_DB_execute_admin_add_incoming (connection,
-                                           &reserve_pub,
-                                           &amount,
-                                           at,
-                                           wire);
-  TMH_PARSE_release_data (spec);
-  return res;
-}
-
-/* end of taler-mint-httpd_admin.c */
diff --git a/src/mint/taler-mint-httpd_admin.h b/src/mint/taler-mint-httpd_admin.h
deleted file mode 100644
index b8ca3ce59..000000000
--- a/src/mint/taler-mint-httpd_admin.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_admin.h
- * @brief Handle /admin/ requests
- * @author Christian Grothoff
- */
-#ifndef TALER_MINT_HTTPD_ADMIN_H
-#define TALER_MINT_HTTPD_ADMIN_H
-
-#include <microhttpd.h>
-#include "taler-mint-httpd.h"
-
-/**
- * Handle a "/admin/add/incoming" request.  Parses the
- * given "reserve_pub", "amount", "transaction" and "h_wire"
- * details and adds the respective transaction to the database.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_ADMIN_handler_admin_add_incoming (struct TMH_RequestHandler *rh,
-                                      struct MHD_Connection *connection,
-                                      void **connection_cls,
-                                      const char *upload_data,
-                                      size_t *upload_data_size);
-
-#endif
diff --git a/src/mint/taler-mint-httpd_db.c b/src/mint/taler-mint-httpd_db.c
deleted file mode 100644
index 8c22a0a2a..000000000
--- a/src/mint/taler-mint-httpd_db.c
+++ /dev/null
@@ -1,1900 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_db.c
- * @brief High-level (transactional-layer) database operations for the mint.
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <pthread.h>
-#include <jansson.h>
-#include "taler-mint-httpd_responses.h"
-#include "taler-mint-httpd_keystate.h"
-
-/**
- * How often should we retry a transaction before giving up
- * (for transactions resulting in serialization/dead locks only).
- */
-#define MAX_TRANSACTION_COMMIT_RETRIES 3
-
-/**
- * Code to begin a transaction, must be inline as we define a block
- * that ends with #COMMIT_TRANSACTION() within which we perform a number
- * of retries.  Note that this code may call "return" internally, so
- * it must be called within a function where any cleanup will be done
- * by the caller. Furthermore, the function's return value must
- * match that of a #TMH_RESPONSE_reply_internal_db_error() status code.
- *
- * @param session session handle
- * @param connection connection handle
- */
-#define START_TRANSACTION(session,connection)                 \
-{ /* start new scope, will be ended by COMMIT_TRANSACTION() */\
-  unsigned int transaction_retries = 0;                       \
-  int transaction_commit_result;                              \
-transaction_start_label: /* we will use goto for retries */   \
-  if (GNUNET_OK !=                                            \
-      TMH_plugin->start (TMH_plugin->cls,                     \
-                         session))                            \
-  {                                                           \
-    GNUNET_break (0);                                         \
-    return TMH_RESPONSE_reply_internal_db_error (connection); \
-  }
-
-/**
- * Code to conclude a transaction, dual to #START_TRANSACTION().  Note
- * that this code may call "return" internally, so it must be called
- * within a function where any cleanup will be done by the caller.
- * Furthermore, the function's return value must match that of a
- * #TMH_RESPONSE_reply_internal_db_error() status code.
- *
- * @param session session handle
- * @param connection connection handle
- */
-#define COMMIT_TRANSACTION(session,connection)                             \
-  transaction_commit_result =                                              \
-    TMH_plugin->commit (TMH_plugin->cls,                                   \
-                        session);                                          \
-  if (GNUNET_SYSERR == transaction_commit_result)                          \
-  {                                                                        \
-    TALER_LOG_WARNING ("Transaction commit failed in %s\n", __FUNCTION__); \
-    return TMH_RESPONSE_reply_commit_error (connection);                   \
-  }                                                                        \
-  if (GNUNET_NO == transaction_commit_result)                              \
-  {                                                                        \
-    TALER_LOG_WARNING ("Transaction commit failed in %s\n", __FUNCTION__); \
-    if (transaction_retries++ <= MAX_TRANSACTION_COMMIT_RETRIES)           \
-      goto transaction_start_label;                                        \
-    TALER_LOG_WARNING ("Transaction commit failed %u times in %s\n",       \
-                       transaction_retries,                                \
-                       __FUNCTION__);                                      \
-    return TMH_RESPONSE_reply_commit_error (connection);                   \
-  }                                                                        \
-} /* end of scope opened by BEGIN_TRANSACTION */
-
-
-/**
- * Calculate the total value of all transactions performed.
- * Stores @a off plus the cost of all transactions in @a tl
- * in @a ret.
- *
- * @param tl transaction list to process
- * @param off offset to use as the starting value
- * @param ret where the resulting total is to be stored
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on errors
- */
-static int
-calculate_transaction_list_totals (struct TALER_MINTDB_TransactionList *tl,
-                                   const struct TALER_Amount *off,
-                                   struct TALER_Amount *ret)
-{
-  struct TALER_Amount spent = *off;
-  struct TALER_MINTDB_TransactionList *pos;
-
-  for (pos = tl; NULL != pos; pos = pos->next)
-  {
-    switch (pos->type)
-    {
-    case TALER_MINTDB_TT_DEPOSIT:
-      if (GNUNET_OK !=
-          TALER_amount_add (&spent,
-                            &spent,
-                            &pos->details.deposit->amount_with_fee))
-      {
-        GNUNET_break (0);
-        return GNUNET_SYSERR;
-      }
-      break;
-    case TALER_MINTDB_TT_REFRESH_MELT:
-      if (GNUNET_OK !=
-          TALER_amount_add (&spent,
-                            &spent,
-                            &pos->details.melt->amount_with_fee))
-      {
-        GNUNET_break (0);
-        return GNUNET_SYSERR;
-      }
-      break;
-    }
-  }
-  *ret = spent;
-  return GNUNET_OK;
-}
-
-
-/**
- * Execute a deposit.  The validity of the coin and signature
- * have already been checked.  The database must now check that
- * the coin is not (double or over) spent, and execute the
- * transaction (record details, generate success or failure response).
- *
- * @param connection the MHD connection to handle
- * @param deposit information about the deposit
- * @return MHD result code
- */
-int
-TMH_DB_execute_deposit (struct MHD_Connection *connection,
-                        const struct TALER_MINTDB_Deposit *deposit)
-{
-  struct TALER_MINTDB_Session *session;
-  struct TALER_MINTDB_TransactionList *tl;
-  struct TALER_Amount spent;
-  struct TALER_Amount value;
-  struct TALER_Amount amount_without_fee;
-  struct TMH_KS_StateHandle *mks;
-  struct TALER_MINTDB_DenominationKeyIssueInformation *dki;
-  int ret;
-
-  if (NULL == (session = TMH_plugin->get_session (TMH_plugin->cls,
-                                                  TMH_test_mode)))
-  {
-    GNUNET_break (0);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-  if (GNUNET_YES ==
-      TMH_plugin->have_deposit (TMH_plugin->cls,
-                                session,
-                                deposit))
-  {
-    GNUNET_assert (GNUNET_OK ==
-                   TALER_amount_subtract (&amount_without_fee,
-                                          &deposit->amount_with_fee,
-                                          &deposit->deposit_fee));
-    return TMH_RESPONSE_reply_deposit_success (connection,
-                                               &deposit->coin.coin_pub,
-                                               &deposit->h_wire,
-                                               &deposit->h_contract,
-                                               deposit->transaction_id,
-                                               deposit->timestamp,
-                                               deposit->refund_deadline,
-                                               &deposit->merchant_pub,
-                                               &amount_without_fee);
-  }
-  mks = TMH_KS_acquire ();
-  dki = TMH_KS_denomination_key_lookup (mks,
-                                        &deposit->coin.denom_pub,
-					TMH_KS_DKU_DEPOSIT);
-  if (NULL == dki)
-  {
-    TMH_KS_release (mks);
-    return TMH_RESPONSE_reply_arg_invalid (connection,
-                                           "denom_pub");
-  }
-  TALER_amount_ntoh (&value,
-                     &dki->issue.properties.value);
-  TMH_KS_release (mks);
-
-  START_TRANSACTION (session, connection);
-
-  /* fee for THIS transaction */
-  spent = deposit->amount_with_fee;
-  /* add cost of all previous transactions */
-  tl = TMH_plugin->get_coin_transactions (TMH_plugin->cls,
-                                          session,
-                                          &deposit->coin.coin_pub);
-  if (GNUNET_OK !=
-      calculate_transaction_list_totals (tl,
-                                         &spent,
-                                         &spent))
-  {
-    TMH_plugin->free_coin_transaction_list (TMH_plugin->cls,
-                                            tl);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-  /* Check that cost of all transactions is smaller than
-     the value of the coin. */
-  if (0 < TALER_amount_cmp (&spent,
-                            &value))
-  {
-    TMH_plugin->rollback (TMH_plugin->cls,
-                          session);
-    ret = TMH_RESPONSE_reply_deposit_insufficient_funds (connection,
-                                                         tl);
-    TMH_plugin->free_coin_transaction_list (TMH_plugin->cls,
-                                            tl);
-    return ret;
-  }
-  TMH_plugin->free_coin_transaction_list (TMH_plugin->cls,
-                                          tl);
-
-  if (GNUNET_OK !=
-      TMH_plugin->insert_deposit (TMH_plugin->cls,
-                                  session,
-                                  deposit))
-  {
-    TALER_LOG_WARNING ("Failed to store /deposit information in database\n");
-    TMH_plugin->rollback (TMH_plugin->cls,
-                          session);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-
-  COMMIT_TRANSACTION(session, connection);
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_amount_subtract (&amount_without_fee,
-                                        &deposit->amount_with_fee,
-                                        &deposit->deposit_fee));
-  return TMH_RESPONSE_reply_deposit_success (connection,
-                                             &deposit->coin.coin_pub,
-                                             &deposit->h_wire,
-                                             &deposit->h_contract,
-                                             deposit->transaction_id,
-                                             deposit->timestamp,
-                                             deposit->refund_deadline,
-                                             &deposit->merchant_pub,
-                                             &amount_without_fee);
-}
-
-
-/**
- * Execute a /reserve/status.  Given the public key of a reserve,
- * return the associated transaction history.
- *
- * @param connection the MHD connection to handle
- * @param reserve_pub public key of the reserve to check
- * @return MHD result code
- */
-int
-TMH_DB_execute_reserve_status (struct MHD_Connection *connection,
-                               const struct TALER_ReservePublicKeyP *reserve_pub)
-{
-  struct TALER_MINTDB_Session *session;
-  struct TALER_MINTDB_ReserveHistory *rh;
-  int res;
-
-  if (NULL == (session = TMH_plugin->get_session (TMH_plugin->cls,
-                                                  TMH_test_mode)))
-  {
-    GNUNET_break (0);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-  rh = TMH_plugin->get_reserve_history (TMH_plugin->cls,
-                                        session,
-                                        reserve_pub);
-  if (NULL == rh)
-    return TMH_RESPONSE_reply_json_pack (connection,
-                                         MHD_HTTP_NOT_FOUND,
-                                         "{s:s, s:s}",
-                                         "error", "Reserve not found",
-                                         "parameter", "withdraw_pub");
-  res = TMH_RESPONSE_reply_reserve_status_success (connection,
-                                                    rh);
-  TMH_plugin->free_reserve_history (TMH_plugin->cls,
-                                    rh);
-  return res;
-}
-
-
-/**
- * Try to execute /reserve/withdraw transaction.
- *
- * @param connection request we are handling
- * @param session database session we are using
- * @param key_state key state to lookup denomination pubs
- * @param reserve reserve to withdraw from
- * @param denomination_pub public key of the denomination requested
- * @param dki denomination to withdraw
- * @param blinded_msg blinded message to be signed
- * @param blinded_msg_len number of bytes in @a blinded_msg
- * @param h_blind hash of @a blinded_msg
- * @param signature signature over the withdraw request, to be stored in DB
- * @param denom_sig[out] where to write the resulting signature
- *        (used to release memory in case of transaction failure
- * @return MHD result code
- */
-static int
-execute_reserve_withdraw_transaction (struct MHD_Connection *connection,
-                                      struct TALER_MINTDB_Session *session,
-                                      struct TMH_KS_StateHandle *key_state,
-                                      const struct TALER_ReservePublicKeyP *reserve,
-                                      const struct TALER_DenominationPublicKey *denomination_pub,
-                                      const struct TALER_MINTDB_DenominationKeyIssueInformation *dki,
-                                      const char *blinded_msg,
-                                      size_t blinded_msg_len,
-                                      const struct GNUNET_HashCode *h_blind,
-                                      const struct TALER_ReserveSignatureP *signature,
-                                      struct TALER_DenominationSignature *denom_sig)
-{
-  struct TALER_MINTDB_ReserveHistory *rh;
-  const struct TALER_MINTDB_ReserveHistory *pos;
-  struct TALER_MINTDB_DenominationKeyIssueInformation *tdki;
-  struct TALER_MINTDB_CollectableBlindcoin collectable;
-  struct TALER_Amount amount_required;
-  struct TALER_Amount deposit_total;
-  struct TALER_Amount withdraw_total;
-  struct TALER_Amount balance;
-  struct TALER_Amount value;
-  struct TALER_Amount fee_withdraw;
-  int res;
-
-  /* Check if balance is sufficient */
-  START_TRANSACTION (session, connection);
-  rh = TMH_plugin->get_reserve_history (TMH_plugin->cls,
-                                        session,
-                                        reserve);
-  if (NULL == rh)
-  {
-    TMH_plugin->rollback (TMH_plugin->cls,
-                          session);
-    return TMH_RESPONSE_reply_arg_unknown (connection,
-                                           "reserve_pub");
-  }
-
-  /* calculate amount required including fees */
-  TALER_amount_ntoh (&value,
-                     &dki->issue.properties.value);
-  TALER_amount_ntoh (&fee_withdraw,
-                     &dki->issue.properties.fee_withdraw);
-
-  if (GNUNET_OK !=
-      TALER_amount_add (&amount_required,
-                        &value,
-                        &fee_withdraw))
-  {
-    TMH_plugin->rollback (TMH_plugin->cls,
-                          session);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-
-  /* calculate balance of the reserve */
-  res = 0;
-  for (pos = rh; NULL != pos; pos = pos->next)
-  {
-    switch (pos->type)
-    {
-    case TALER_MINTDB_RO_BANK_TO_MINT:
-      if (0 == (res & 1))
-        deposit_total = pos->details.bank->amount;
-      else
-        if (GNUNET_OK !=
-            TALER_amount_add (&deposit_total,
-                              &deposit_total,
-                              &pos->details.bank->amount))
-        {
-          TMH_plugin->rollback (TMH_plugin->cls,
-                                session);
-          return TMH_RESPONSE_reply_internal_db_error (connection);
-        }
-      res |= 1;
-      break;
-    case TALER_MINTDB_RO_WITHDRAW_COIN:
-      tdki = TMH_KS_denomination_key_lookup (key_state,
-                                             &pos->details.withdraw->denom_pub,
-					     TMH_KS_DKU_WITHDRAW);
-      if (NULL == tdki)
-      {
-        GNUNET_break (0);
-        TMH_plugin->rollback (TMH_plugin->cls,
-                              session);
-        return TMH_RESPONSE_reply_internal_db_error (connection);
-      }
-      TALER_amount_ntoh (&value,
-                         &tdki->issue.properties.value);
-      if (0 == (res & 2))
-        withdraw_total = value;
-      else
-        if (GNUNET_OK !=
-            TALER_amount_add (&withdraw_total,
-                              &withdraw_total,
-                              &value))
-        {
-          TMH_plugin->rollback (TMH_plugin->cls,
-                                session);
-          return TMH_RESPONSE_reply_internal_db_error (connection);
-        }
-      res |= 2;
-      break;
-    }
-  }
-  if (0 == (res & 1))
-  {
-    /* did not encounter any deposit operations, how can we have a reserve? */
-    GNUNET_break (0);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-  if (0 == (res & 2))
-  {
-    /* did not encounter any withdraw operations, set to zero */
-    TALER_amount_get_zero (deposit_total.currency,
-                           &withdraw_total);
-  }
-  /* All reserve balances should be non-negative */
-  GNUNET_assert (GNUNET_SYSERR !=
-                 TALER_amount_subtract (&balance,
-                                        &deposit_total,
-                                        &withdraw_total));
-  if (0 < TALER_amount_cmp (&amount_required,
-                            &balance))
-  {
-    TMH_plugin->rollback (TMH_plugin->cls,
-                          session);
-    res = TMH_RESPONSE_reply_reserve_withdraw_insufficient_funds (connection,
-                                                                  rh);
-    TMH_plugin->free_reserve_history (TMH_plugin->cls,
-                                      rh);
-    return res;
-  }
-  TMH_plugin->free_reserve_history (TMH_plugin->cls,
-                                    rh);
-
-  /* Balance is good, sign the coin! */
-  denom_sig->rsa_signature
-    = GNUNET_CRYPTO_rsa_sign (dki->denom_priv.rsa_private_key,
-                              blinded_msg,
-                              blinded_msg_len);
-  if (NULL == denom_sig->rsa_signature)
-  {
-    GNUNET_break (0);
-    TMH_plugin->rollback (TMH_plugin->cls,
-                          session);
-    return TMH_RESPONSE_reply_internal_error (connection,
-                                              "Internal error");
-  }
-  collectable.sig = *denom_sig;
-  collectable.denom_pub = *denomination_pub;
-  collectable.amount_with_fee = amount_required;
-  collectable.withdraw_fee = fee_withdraw;
-  collectable.reserve_pub = *reserve;
-  collectable.h_coin_envelope = *h_blind;
-  collectable.reserve_sig = *signature;
-  if (GNUNET_OK !=
-      TMH_plugin->insert_withdraw_info (TMH_plugin->cls,
-                                        session,
-                                        &collectable))
-  {
-    GNUNET_break (0);
-    TMH_plugin->rollback (TMH_plugin->cls,
-                          session);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-  COMMIT_TRANSACTION (session, connection);
-
-  return TMH_RESPONSE_reply_reserve_withdraw_success (connection,
-                                                      &collectable);
-}
-
-
-
-/**
- * Execute a "/reserve/withdraw". Given a reserve and a properly signed
- * request to withdraw a coin, check the balance of the reserve and
- * if it is sufficient, store the request and return the signed
- * blinded envelope.
- *
- * @param connection the MHD connection to handle
- * @param reserve public key of the reserve
- * @param denomination_pub public key of the denomination requested
- * @param blinded_msg blinded message to be signed
- * @param blinded_msg_len number of bytes in @a blinded_msg
- * @param signature signature over the withdraw request, to be stored in DB
- * @return MHD result code
- */
-int
-TMH_DB_execute_reserve_withdraw (struct MHD_Connection *connection,
-                                 const struct TALER_ReservePublicKeyP *reserve,
-                                 const struct TALER_DenominationPublicKey *denomination_pub,
-                                 const char *blinded_msg,
-                                 size_t blinded_msg_len,
-                                 const struct TALER_ReserveSignatureP *signature)
-{
-  struct TALER_MINTDB_Session *session;
-  struct TMH_KS_StateHandle *key_state;
-  struct TALER_MINTDB_DenominationKeyIssueInformation *dki;
-  struct TALER_MINTDB_CollectableBlindcoin collectable;
-  struct TALER_DenominationSignature denom_sig;
-  struct GNUNET_HashCode h_blind;
-  int res;
-
-  GNUNET_CRYPTO_hash (blinded_msg,
-                      blinded_msg_len,
-                      &h_blind);
-  if (NULL == (session = TMH_plugin->get_session (TMH_plugin->cls,
-                                                  TMH_test_mode)))
-  {
-    GNUNET_break (0);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-  res = TMH_plugin->get_withdraw_info (TMH_plugin->cls,
-                                       session,
-                                       &h_blind,
-                                       &collectable);
-  if (GNUNET_SYSERR == res)
-  {
-    GNUNET_break (0);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-
-  /* Don't sign again if we have already signed the coin */
-  if (GNUNET_YES == res)
-  {
-    res = TMH_RESPONSE_reply_reserve_withdraw_success (connection,
-                                                       &collectable);
-    GNUNET_CRYPTO_rsa_signature_free (collectable.sig.rsa_signature);
-    GNUNET_CRYPTO_rsa_public_key_free (collectable.denom_pub.rsa_public_key);
-    return res;
-  }
-  GNUNET_assert (GNUNET_NO == res);
-
-  key_state = TMH_KS_acquire ();
-  dki = TMH_KS_denomination_key_lookup (key_state,
-                                        denomination_pub,
-					TMH_KS_DKU_WITHDRAW);
-  if (NULL == dki)
-  {
-    TMH_KS_release (key_state);
-    return TMH_RESPONSE_reply_json_pack (connection,
-                                         MHD_HTTP_NOT_FOUND,
-                                         "{s:s}",
-                                         "error",
-                                         "Denomination not found");
-  }
-  denom_sig.rsa_signature = NULL;
-  res = execute_reserve_withdraw_transaction (connection,
-                                              session,
-                                              key_state,
-                                              reserve,
-                                              denomination_pub,
-                                              dki,
-                                              blinded_msg,
-                                              blinded_msg_len,
-                                              &h_blind,
-                                              signature,
-                                              &denom_sig);
-  if (NULL != denom_sig.rsa_signature)
-    GNUNET_CRYPTO_rsa_signature_free (denom_sig.rsa_signature);
-  TMH_KS_release (key_state);
-  return res;
-}
-
-
-/**
- * Parse coin melt requests from a JSON object and write them to
- * the database.
- *
- * @param connection the connection to send errors to
- * @param session the database connection
- * @param key_state the mint's key state
- * @param session_hash hash identifying the refresh session
- * @param coin_details details about the coin being melted
- * @param oldcoin_index what is the number assigned to this coin
- * @return #GNUNET_OK on success,
- *         #GNUNET_NO if an error message was generated,
- *         #GNUNET_SYSERR on internal errors (no response generated)
- */
-static int
-refresh_accept_melts (struct MHD_Connection *connection,
-                      struct TALER_MINTDB_Session *session,
-                      const struct TMH_KS_StateHandle *key_state,
-                      const struct GNUNET_HashCode *session_hash,
-                      const struct TMH_DB_MeltDetails *coin_details,
-                      uint16_t oldcoin_index)
-{
-  struct TALER_MINTDB_DenominationKeyIssueInformation *dk;
-  struct TALER_MINTDB_DenominationKeyInformationP *dki;
-  struct TALER_MINTDB_TransactionList *tl;
-  struct TALER_Amount coin_value;
-  struct TALER_Amount coin_residual;
-  struct TALER_Amount spent;
-  struct TALER_MINTDB_RefreshMelt melt;
-  int res;
-
-  dk = TMH_KS_denomination_key_lookup (key_state,
-                                       &coin_details->coin_info.denom_pub,
-                                       TMH_KS_DKU_DEPOSIT);
-  if (NULL == dk)
-    return (MHD_YES ==
-            TMH_RESPONSE_reply_arg_unknown (connection,
-                                            "denom_pub"))
-        ? GNUNET_NO : GNUNET_SYSERR;
-  dki = &dk->issue;
-  TALER_amount_ntoh (&coin_value,
-                     &dki->properties.value);
-  /* fee for THIS transaction; the melt amount includes the fee! */
-  spent = coin_details->melt_amount_with_fee;
-  /* add historic transaction costs of this coin */
-  tl = TMH_plugin->get_coin_transactions (TMH_plugin->cls,
-                                          session,
-                                          &coin_details->coin_info.coin_pub);
-  if (GNUNET_OK !=
-      calculate_transaction_list_totals (tl,
-                                         &spent,
-                                         &spent))
-  {
-    GNUNET_break (0);
-    TMH_plugin->free_coin_transaction_list (TMH_plugin->cls,
-                                            tl);
-    return (MHD_YES ==
-            TMH_RESPONSE_reply_internal_db_error (connection))
-      ? GNUNET_NO : GNUNET_SYSERR;
-  }
-  /* Refuse to refresh when the coin's value is insufficient
-     for the cost of all transactions. */
-  if (TALER_amount_cmp (&coin_value,
-                        &spent) < 0)
-  {
-    GNUNET_assert (GNUNET_OK ==
-                   TALER_amount_subtract (&coin_residual,
-                                          &spent,
-                                          &coin_details->melt_amount_with_fee));
-    res = (MHD_YES ==
-           TMH_RESPONSE_reply_refresh_melt_insufficient_funds (connection,
-                                                               &coin_details->coin_info.coin_pub,
-                                                               coin_value,
-                                                               tl,
-                                                               coin_details->melt_amount_with_fee,
-                                                               coin_residual))
-        ? GNUNET_NO : GNUNET_SYSERR;
-    TMH_plugin->free_coin_transaction_list (TMH_plugin->cls,
-                                            tl);
-    return res;
-  }
-  TMH_plugin->free_coin_transaction_list (TMH_plugin->cls,
-                                          tl);
-
-  melt.coin = coin_details->coin_info;
-  melt.coin_sig = coin_details->melt_sig;
-  melt.session_hash = *session_hash;
-  melt.amount_with_fee = coin_details->melt_amount_with_fee;
-  melt.melt_fee = coin_details->melt_fee;
-  if (GNUNET_OK !=
-      TMH_plugin->insert_refresh_melt (TMH_plugin->cls,
-                                       session,
-                                       oldcoin_index,
-                                       &melt))
-  {
-    GNUNET_break (0);
-    return (MHD_YES ==
-            TMH_RESPONSE_reply_internal_db_error (connection))
-      ? GNUNET_NO : GNUNET_SYSERR;
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Execute a "/refresh/melt".  We have been given a list of valid
- * coins and a request to melt them into the given
- * @a refresh_session_pub.  Check that the coins all have the
- * required value left and if so, store that they have been
- * melted and confirm the melting operation to the client.
- *
- * @param connection the MHD connection to handle
- * @param session_hash hash code of the session the coins are melted into
- * @param num_new_denoms number of entries in @a denom_pubs, size of y-dimension of @a commit_coin array
- * @param denom_pubs public keys of the coins we want to withdraw in the end
- * @param coin_count number of entries in @a coin_melt_details, size of y-dimension of @a commit_link array
- * @param coin_melt_details signatures and (residual) value of the respective coin should be melted
- * @param commit_coin 2d array of coin commitments (what the mint is to sign
- *                    once the "/refres/reveal" of cut and choose is done),
- *                    x-dimension must be #TALER_CNC_KAPPA
- * @param commit_link 2d array of coin link commitments (what the mint is
- *                    to return via "/refresh/link" to enable linkage in the
- *                    future)
- *                    x-dimension must be #TALER_CNC_KAPPA
- * @return MHD result code
- */
-int
-TMH_DB_execute_refresh_melt (struct MHD_Connection *connection,
-                             const struct GNUNET_HashCode *session_hash,
-                             unsigned int num_new_denoms,
-                             const struct TALER_DenominationPublicKey *denom_pubs,
-                             unsigned int coin_count,
-                             const struct TMH_DB_MeltDetails *coin_melt_details,
-                             struct TALER_MINTDB_RefreshCommitCoin *const* commit_coin,
-                             struct TALER_RefreshCommitLinkP *const* commit_link)
-{
-  struct TMH_KS_StateHandle *key_state;
-  struct TALER_MINTDB_RefreshSession refresh_session;
-  struct TALER_MINTDB_Session *session;
-  int res;
-  unsigned int i;
-
-  if (NULL == (session = TMH_plugin->get_session (TMH_plugin->cls,
-                                                  TMH_test_mode)))
-  {
-    GNUNET_break (0);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-  START_TRANSACTION (session, connection);
-  res = TMH_plugin->get_refresh_session (TMH_plugin->cls,
-                                         session,
-                                         session_hash,
-                                         &refresh_session);
-  if (GNUNET_YES == res)
-  {
-    TMH_plugin->rollback (TMH_plugin->cls,
-                          session);
-    res = TMH_RESPONSE_reply_refresh_melt_success (connection,
-                                                   session_hash,
-                                                   refresh_session.noreveal_index);
-    return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
-  }
-  if (GNUNET_SYSERR == res)
-  {
-    TMH_plugin->rollback (TMH_plugin->cls,
-                          session);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-
-  /* store 'global' session data */
-  refresh_session.num_oldcoins = coin_count;
-  refresh_session.num_newcoins = num_new_denoms;
-  refresh_session.noreveal_index
-      = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_STRONG,
-                                  TALER_CNC_KAPPA);
-  if (GNUNET_OK !=
-      (res = TMH_plugin->create_refresh_session (TMH_plugin->cls,
-                                                 session,
-                                                 session_hash,
-                                                 &refresh_session)))
-  {
-    TMH_plugin->rollback (TMH_plugin->cls,
-                          session);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-
-  /* Melt old coins and check that they had enough residual value */
-  key_state = TMH_KS_acquire ();
-  for (i=0;i<coin_count;i++)
-  {
-    if (GNUNET_OK !=
-        (res = refresh_accept_melts (connection,
-                                     session,
-                                     key_state,
-                                     session_hash,
-                                     &coin_melt_details[i],
-                                     i)))
-    {
-      TMH_KS_release (key_state);
-      TMH_plugin->rollback (TMH_plugin->cls,
-                            session);
-      return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
-    }
-  }
-  TMH_KS_release (key_state);
-
-  /* store requested new denominations */
-  if (GNUNET_OK !=
-      TMH_plugin->insert_refresh_order (TMH_plugin->cls,
-                                        session,
-                                        session_hash,
-                                        num_new_denoms,
-                                        denom_pubs))
-  {
-    TMH_plugin->rollback (TMH_plugin->cls,
-                          session);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-
-  for (i = 0; i < TALER_CNC_KAPPA; i++)
-  {
-    if (GNUNET_OK !=
-        TMH_plugin->insert_refresh_commit_coins (TMH_plugin->cls,
-                                                 session,
-                                                 session_hash,
-                                                 i,
-                                                 num_new_denoms,
-                                                 commit_coin[i]))
-    {
-      TMH_plugin->rollback (TMH_plugin->cls,
-                            session);
-      return TMH_RESPONSE_reply_internal_db_error (connection);
-    }
-  }
-  for (i = 0; i < TALER_CNC_KAPPA; i++)
-  {
-    if (GNUNET_OK !=
-        TMH_plugin->insert_refresh_commit_links (TMH_plugin->cls,
-                                                 session,
-                                                 session_hash,
-                                                 i,
-                                                 coin_count,
-                                                 commit_link[i]))
-    {
-      TMH_plugin->rollback (TMH_plugin->cls,
-                            session);
-      return TMH_RESPONSE_reply_internal_db_error (connection);
-    }
-  }
-
-  COMMIT_TRANSACTION (session, connection);
-  return TMH_RESPONSE_reply_refresh_melt_success (connection,
-                                                  session_hash,
-                                                  refresh_session.noreveal_index);
-}
-
-
-/**
- * Send an error response with the details of the original melt
- * commitment and the location of the mismatch.
- *
- * @param connection the MHD connection to handle
- * @param session database connection to use
- * @param session_hash hash of session to query
- * @param off commitment offset to check
- * @param index index of the mismatch
- * @param object_name name of the object with the problem
- * @return #GNUNET_NO if we generated the error message
- *         #GNUNET_SYSERR if we could not even generate an error message
- */
-static int
-send_melt_commitment_error (struct MHD_Connection *connection,
-                            struct TALER_MINTDB_Session *session,
-                            const struct GNUNET_HashCode *session_hash,
-                            unsigned int off,
-                            unsigned int index,
-                            const char *object_name)
-{
-  struct TALER_MINTDB_MeltCommitment *mc;
-  int ret;
-
-  mc = TMH_plugin->get_melt_commitment (TMH_plugin->cls,
-                                        session,
-                                        session_hash);
-  if (NULL == mc)
-  {
-    GNUNET_break (0);
-    return (MHD_YES ==
-            TMH_RESPONSE_reply_internal_error (connection,
-                                               "Melt commitment assembly"))
-      ? GNUNET_NO : GNUNET_SYSERR;
-  }
-  ret = (MHD_YES ==
-         TMH_RESPONSE_reply_refresh_reveal_missmatch (connection,
-                                                      mc,
-                                                      off,
-                                                      index,
-                                                      object_name))
-    ? GNUNET_NO : GNUNET_SYSERR;
-  TMH_plugin->free_melt_commitment (TMH_plugin->cls,
-                                    mc);
-  return ret;
-}
-
-
-/**
- * Check if the given @a transfer_privs correspond to an honest
- * commitment for the given session.
- * Checks that the transfer private keys match their commitments.
- * Then derives the shared secret for each #TALER_CNC_KAPPA, and check that they match.
- *
- * @param connection the MHD connection to handle
- * @param session database connection to use
- * @param session_hash hash of session to query
- * @param off commitment offset to check
- * @param num_oldcoins size of the @a transfer_privs and @a melts arrays
- * @param transfer_privs private transfer keys
- * @param melts array of melted coins
- * @param num_newcoins number of newcoins being generated
- * @param denom_pubs array of @a num_newcoins keys for the new coins
- * @return #GNUNET_OK if the committment was honest,
- *         #GNUNET_NO if there was a problem and we generated an error message
- *         #GNUNET_SYSERR if we could not even generate an error message
- */
-static int
-check_commitment (struct MHD_Connection *connection,
-                  struct TALER_MINTDB_Session *session,
-                  const struct GNUNET_HashCode *session_hash,
-                  unsigned int off,
-                  unsigned int num_oldcoins,
-                  const struct TALER_TransferPrivateKeyP *transfer_privs,
-                  const struct TALER_MINTDB_RefreshMelt *melts,
-                  unsigned int num_newcoins,
-                  const struct TALER_DenominationPublicKey *denom_pubs)
-{
-  unsigned int j;
-  struct TALER_LinkSecretP last_shared_secret;
-  int secret_initialized = GNUNET_NO;
-  struct TALER_RefreshCommitLinkP *commit_links;
-  struct TALER_MINTDB_RefreshCommitCoin *commit_coins;
-
-  commit_links = GNUNET_malloc (num_oldcoins *
-                                sizeof (struct TALER_RefreshCommitLinkP));
-  if (GNUNET_OK !=
-      TMH_plugin->get_refresh_commit_links (TMH_plugin->cls,
-                                            session,
-                                            session_hash,
-                                            off,
-                                            num_oldcoins,
-                                            commit_links))
-  {
-    GNUNET_break (0);
-    GNUNET_free (commit_links);
-    return (MHD_YES == TMH_RESPONSE_reply_internal_db_error (connection))
-        ? GNUNET_NO : GNUNET_SYSERR;
-  }
-
-  for (j = 0; j < num_oldcoins; j++)
-  {
-    struct TALER_LinkSecretP shared_secret;
-    struct TALER_TransferPublicKeyP transfer_pub_check;
-
-    GNUNET_CRYPTO_ecdhe_key_get_public (&transfer_privs[j].ecdhe_priv,
-                                        &transfer_pub_check.ecdhe_pub);
-    if (0 !=
-        memcmp (&transfer_pub_check,
-                &commit_links[j].transfer_pub,
-                sizeof (struct TALER_TransferPublicKeyP)))
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                  "transfer keys do not match\n");
-      GNUNET_free (commit_links);
-      return send_melt_commitment_error (connection,
-                                         session,
-                                         session_hash,
-                                         off,
-                                         j,
-                                         "transfer key");
-    }
-
-    if (GNUNET_OK !=
-	TALER_link_decrypt_secret (&commit_links[j].shared_secret_enc,
-				   &transfer_privs[j],
-				   &melts[j].coin.coin_pub,
-				   &shared_secret))
-    {
-      GNUNET_free (commit_links);
-      return (MHD_YES ==
-	      TMH_RESPONSE_reply_internal_error (connection,
-						 "Transfer secret decryption error"))
-	? GNUNET_NO : GNUNET_SYSERR;
-    }
-    if (GNUNET_NO == secret_initialized)
-    {
-      secret_initialized = GNUNET_YES;
-      last_shared_secret = shared_secret;
-    }
-    else if (0 != memcmp (&shared_secret,
-                          &last_shared_secret,
-                          sizeof (struct GNUNET_HashCode)))
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                  "shared secrets do not match\n");
-      GNUNET_free (commit_links);
-      return send_melt_commitment_error (connection,
-                                         session,
-                                         session_hash,
-                                         off,
-                                         j,
-                                         "transfer secret");
-    }
-  }
-  GNUNET_break (GNUNET_YES == secret_initialized);
-  GNUNET_free (commit_links);
-
-  /* Check that the commitments for all new coins were correct */
-  commit_coins = GNUNET_malloc (num_newcoins *
-                                sizeof (struct TALER_MINTDB_RefreshCommitCoin));
-
-  if (GNUNET_OK !=
-      TMH_plugin->get_refresh_commit_coins (TMH_plugin->cls,
-                                            session,
-                                            session_hash,
-                                            off,
-                                            num_newcoins,
-                                            commit_coins))
-  {
-    GNUNET_break (0);
-    GNUNET_free (commit_coins);
-    return (MHD_YES == TMH_RESPONSE_reply_internal_db_error (connection))
-        ? GNUNET_NO : GNUNET_SYSERR;
-  }
-
-  for (j = 0; j < num_newcoins; j++)
-  {
-    struct TALER_RefreshLinkDecrypted *link_data;
-    struct TALER_CoinSpendPublicKeyP coin_pub;
-    struct GNUNET_HashCode h_msg;
-    char *buf;
-    size_t buf_len;
-
-    link_data = TALER_refresh_decrypt (commit_coins[j].refresh_link,
-                                       &last_shared_secret);
-    if (NULL == link_data)
-    {
-      GNUNET_break (0);
-      GNUNET_free (commit_coins);
-      return (MHD_YES == TMH_RESPONSE_reply_internal_error (connection,
-                                                            "Decryption error"))
-          ? GNUNET_NO : GNUNET_SYSERR;
-    }
-
-    GNUNET_CRYPTO_eddsa_key_get_public (&link_data->coin_priv.eddsa_priv,
-                                        &coin_pub.eddsa_pub);
-    GNUNET_CRYPTO_hash (&coin_pub,
-                        sizeof (struct TALER_CoinSpendPublicKeyP),
-                        &h_msg);
-    if (0 == (buf_len =
-              GNUNET_CRYPTO_rsa_blind (&h_msg,
-                                       link_data->blinding_key.rsa_blinding_key,
-                                       denom_pubs[j].rsa_public_key,
-                                       &buf)))
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                  "blind failed\n");
-      GNUNET_free (commit_coins);
-      return (MHD_YES == TMH_RESPONSE_reply_internal_error (connection,
-                                                            "Blinding error"))
-          ? GNUNET_NO : GNUNET_SYSERR;
-    }
-
-    if ( (buf_len != commit_coins[j].coin_ev_size) ||
-         (0 != memcmp (buf,
-                       commit_coins[j].coin_ev,
-                       buf_len)) )
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                  "blind envelope does not match for k=%u, old=%d\n",
-                  off,
-                  (int) j);
-      GNUNET_free (commit_coins);
-      return send_melt_commitment_error (connection,
-                                         session,
-                                         session_hash,
-                                         off,
-                                         j,
-                                         "envelope");
-    }
-    GNUNET_free (buf);
-  }
-  GNUNET_free (commit_coins);
-
-  return GNUNET_OK;
-}
-
-
-/**
- * Mint a coin as part of a refresh operation.  Obtains the
- * envelope from the database and performs the signing operation.
- *
- * @param connection the MHD connection to handle
- * @param session database connection to use
- * @param session_hash hash of session to query
- * @param key_state key state to lookup denomination pubs
- * @param denom_pub denomination key for the coin to create
- * @param commit_coin the coin that was committed
- * @param coin_off number of the coin
- * @return NULL on error, otherwise signature over the coin
- */
-static struct TALER_DenominationSignature
-refresh_mint_coin (struct MHD_Connection *connection,
-                   struct TALER_MINTDB_Session *session,
-                   const struct GNUNET_HashCode *session_hash,
-                   struct TMH_KS_StateHandle *key_state,
-                   const struct TALER_DenominationPublicKey *denom_pub,
-                   const struct TALER_MINTDB_RefreshCommitCoin *commit_coin,
-                   unsigned int coin_off)
-{
-  struct TALER_MINTDB_DenominationKeyIssueInformation *dki;
-  struct TALER_DenominationSignature ev_sig;
-
-  dki = TMH_KS_denomination_key_lookup (key_state,
-                                        denom_pub,
-					TMH_KS_DKU_WITHDRAW);
-  if (NULL == dki)
-  {
-    GNUNET_break (0);
-    ev_sig.rsa_signature = NULL;
-    return ev_sig;
-  }
-  ev_sig.rsa_signature
-      = GNUNET_CRYPTO_rsa_sign (dki->denom_priv.rsa_private_key,
-                                commit_coin->coin_ev,
-                                commit_coin->coin_ev_size);
-  if (NULL == ev_sig.rsa_signature)
-  {
-    GNUNET_break (0);
-    return ev_sig;
-  }
-  if (GNUNET_OK !=
-      TMH_plugin->insert_refresh_out (TMH_plugin->cls,
-                                      session,
-                                      session_hash,
-                                      coin_off,
-                                      &ev_sig))
-  {
-    GNUNET_break (0);
-    GNUNET_CRYPTO_rsa_signature_free (ev_sig.rsa_signature);
-    ev_sig.rsa_signature = NULL;
-  }
-  return ev_sig;
-}
-
-
-/**
- * The client request was well-formed, now execute the DB transaction
- * of a "/refresh/reveal" operation.  We use the @a ev_sigs and
- * @a commit_coins to clean up resources after this function returns
- * as we might experience retries of the database transaction.
- *
- * @param connection the MHD connection to handle
- * @param session database session
- * @param session_hash hash identifying the refresh session
- * @param refresh_session information about the refresh operation we are doing
- * @param melts array of "num_oldcoins" with information about melted coins
- * @param denom_pubs array of "num_newcoins" denomination keys for the new coins
- * @param[out] ev_sigs where to store generated signatures for the new coins,
- *                     array of length "num_newcoins", memory released by the
- *                     caller
- * @param[out] commit_coins array of length "num_newcoins" to be used for
- *                     information about the new coins from the commitment.
- * @return MHD result code
- */
-static int
-execute_refresh_reveal_transaction (struct MHD_Connection *connection,
-                                    struct TALER_MINTDB_Session *session,
-                                    const struct GNUNET_HashCode *session_hash,
-                                    const struct TALER_MINTDB_RefreshSession *refresh_session,
-                                    const struct TALER_MINTDB_RefreshMelt *melts,
-                                    const struct TALER_DenominationPublicKey *denom_pubs,
-                                    struct TALER_DenominationSignature *ev_sigs,
-                                    struct TALER_MINTDB_RefreshCommitCoin *commit_coins)
-{
-  unsigned int j;
-  struct TMH_KS_StateHandle *key_state;
-
-  START_TRANSACTION (session, connection);
-  if (GNUNET_OK !=
-      TMH_plugin->get_refresh_commit_coins (TMH_plugin->cls,
-                                            session,
-                                            session_hash,
-                                            refresh_session->noreveal_index,
-                                            refresh_session->num_newcoins,
-                                            commit_coins))
-  {
-    GNUNET_break (0);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-  key_state = TMH_KS_acquire ();
-  for (j=0;j<refresh_session->num_newcoins;j++)
-  {
-    if (NULL == ev_sigs[j].rsa_signature) /* could be non-NULL during retries */
-      ev_sigs[j] = refresh_mint_coin (connection,
-                                      session,
-                                      session_hash,
-                                      key_state,
-                                      &denom_pubs[j],
-                                      &commit_coins[j],
-                                      j);
-    if (NULL == ev_sigs[j].rsa_signature)
-    {
-      TMH_KS_release (key_state);
-      return TMH_RESPONSE_reply_internal_db_error (connection);
-    }
-  }
-  TMH_KS_release (key_state);
-  COMMIT_TRANSACTION (session, connection);
-  return TMH_RESPONSE_reply_refresh_reveal_success (connection,
-                                                    refresh_session->num_newcoins,
-                                                    ev_sigs);
-}
-
-
-/**
- * Execute a "/refresh/reveal".  The client is revealing to us the
- * transfer keys for @a #TALER_CNC_KAPPA-1 sets of coins.  Verify that the
- * revealed transfer keys would allow linkage to the blinded coins,
- * and if so, return the signed coins for corresponding to the set of
- * coins that was not chosen.
- *
- * @param connection the MHD connection to handle
- * @param session_hash hash identifying the refresh session
- * @param num_oldcoins size of y-dimension of @a transfer_privs array
- * @param transfer_privs array with the revealed transfer keys,
- *                      x-dimension must be #TALER_CNC_KAPPA - 1
- * @return MHD result code
- */
-int
-TMH_DB_execute_refresh_reveal (struct MHD_Connection *connection,
-                               const struct GNUNET_HashCode *session_hash,
-                               unsigned int num_oldcoins,
-                               struct TALER_TransferPrivateKeyP **transfer_privs)
-{
-  int res;
-  struct TALER_MINTDB_Session *session;
-  struct TALER_MINTDB_RefreshSession refresh_session;
-  struct TALER_MINTDB_RefreshMelt *melts;
-  struct TALER_DenominationPublicKey *denom_pubs;
-  struct TALER_DenominationSignature *ev_sigs;
-  struct TALER_MINTDB_RefreshCommitCoin *commit_coins;
-  unsigned int i;
-  unsigned int j;
-  unsigned int off;
-
-  if (NULL == (session = TMH_plugin->get_session (TMH_plugin->cls,
-                                                  TMH_test_mode)))
-  {
-    GNUNET_break (0);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-
-  res = TMH_plugin->get_refresh_session (TMH_plugin->cls,
-                                         session,
-                                         session_hash,
-                                         &refresh_session);
-  if (GNUNET_NO == res)
-    return TMH_RESPONSE_reply_arg_invalid (connection,
-                                           "session_hash");
-  if (GNUNET_SYSERR == res)
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  if (0 == refresh_session.num_oldcoins)
-  {
-    GNUNET_break (0);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-
-  melts = GNUNET_malloc (refresh_session.num_oldcoins *
-                         sizeof (struct TALER_MINTDB_RefreshMelt));
-  for (j=0;j<refresh_session.num_oldcoins;j++)
-  {
-    if (GNUNET_OK !=
-        TMH_plugin->get_refresh_melt (TMH_plugin->cls,
-                                      session,
-                                      session_hash,
-                                      j,
-                                      &melts[j]))
-    {
-      GNUNET_break (0);
-      for (i=0;i<j;i++)
-      {
-        GNUNET_CRYPTO_rsa_signature_free (melts[i].coin.denom_sig.rsa_signature);
-        GNUNET_CRYPTO_rsa_public_key_free (melts[i].coin.denom_pub.rsa_public_key);
-      }
-      GNUNET_free (melts);
-      return TMH_RESPONSE_reply_internal_db_error (connection);
-    }
-  }
-  denom_pubs = GNUNET_malloc (refresh_session.num_newcoins *
-                              sizeof (struct TALER_DenominationPublicKey));
-  if (GNUNET_OK !=
-      TMH_plugin->get_refresh_order (TMH_plugin->cls,
-                                     session,
-                                     session_hash,
-                                     refresh_session.num_newcoins,
-                                     denom_pubs))
-  {
-    GNUNET_break (0);
-    GNUNET_free (denom_pubs);
-    for (i=0;i<refresh_session.num_oldcoins;i++)
-    {
-      GNUNET_CRYPTO_rsa_signature_free (melts[i].coin.denom_sig.rsa_signature);
-      GNUNET_CRYPTO_rsa_public_key_free (melts[i].coin.denom_pub.rsa_public_key);
-    }
-    GNUNET_free (melts);
-    return (MHD_YES == TMH_RESPONSE_reply_internal_db_error (connection))
-        ? GNUNET_NO : GNUNET_SYSERR;
-  }
-
-
-  off = 0;
-  for (i=0;i<TALER_CNC_KAPPA - 1;i++)
-  {
-    if (i == refresh_session.noreveal_index)
-      off = 1;
-    if (GNUNET_OK !=
-        (res = check_commitment (connection,
-                                 session,
-                                 session_hash,
-                                 i + off,
-                                 refresh_session.num_oldcoins,
-                                 transfer_privs[i],
-                                 melts,
-                                 refresh_session.num_newcoins,
-                                 denom_pubs)))
-    {
-      for (j=0;j<refresh_session.num_newcoins;j++)
-        GNUNET_CRYPTO_rsa_public_key_free (denom_pubs[j].rsa_public_key);
-      GNUNET_free (denom_pubs);
-      for (i=0;i<refresh_session.num_oldcoins;i++)
-      {
-        GNUNET_CRYPTO_rsa_signature_free (melts[i].coin.denom_sig.rsa_signature);
-        GNUNET_CRYPTO_rsa_public_key_free (melts[i].coin.denom_pub.rsa_public_key);
-      }
-      GNUNET_free (melts);
-      return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
-    }
-  }
-  for (i=0;i<refresh_session.num_oldcoins;i++)
-  {
-    GNUNET_CRYPTO_rsa_signature_free (melts[i].coin.denom_sig.rsa_signature);
-    GNUNET_CRYPTO_rsa_public_key_free (melts[i].coin.denom_pub.rsa_public_key);
-  }
-  GNUNET_free (melts);
-
-  /* Client request OK, start transaction */
-  commit_coins = GNUNET_malloc (refresh_session.num_newcoins *
-                                sizeof (struct TALER_MINTDB_RefreshCommitCoin));
-  ev_sigs = GNUNET_malloc (refresh_session.num_newcoins *
-                           sizeof (struct TALER_DenominationSignature));
-  res = execute_refresh_reveal_transaction (connection,
-                                            session,
-                                            session_hash,
-                                            &refresh_session,
-                                            melts,
-                                            denom_pubs,
-                                            ev_sigs,
-                                            commit_coins);
-  for (i=0;i<refresh_session.num_newcoins;i++)
-    if (NULL != ev_sigs[i].rsa_signature)
-    GNUNET_CRYPTO_rsa_signature_free (ev_sigs[i].rsa_signature);
-  for (j=0;j<refresh_session.num_newcoins;j++)
-    if (NULL != denom_pubs[j].rsa_public_key)
-      GNUNET_CRYPTO_rsa_public_key_free (denom_pubs[j].rsa_public_key);
-  GNUNET_free (ev_sigs);
-  GNUNET_free (denom_pubs);
-  GNUNET_free (commit_coins);
-  return res;
-}
-
-
-/**
- * Closure for #handle_transfer_data().
- */
-struct HTD_Context
-{
-
-  /**
-   * Session link data we collect.
-   */
-  struct TMH_RESPONSE_LinkSessionInfo *sessions;
-
-  /**
-   * Database session. Nothing to do with @a sessions.
-   */
-  struct TALER_MINTDB_Session *session;
-
-  /**
-   * MHD connection, for queueing replies.
-   */
-  struct MHD_Connection *connection;
-
-  /**
-   * Number of sessions the coin was melted into.
-   */
-  unsigned int num_sessions;
-
-  /**
-   * How are we expected to proceed. #GNUNET_SYSERR if we
-   * failed to return an error (should return #MHD_NO).
-   * #GNUNET_NO if we succeeded in queueing an MHD error
-   * (should return #MHD_YES from #TMH_execute_refresh_link),
-   * #GNUNET_OK if we should call #TMH_RESPONSE_reply_refresh_link_success().
-   */
-  int status;
-};
-
-
-/**
- * Function called with the session hashes and transfer secret
- * information for a given coin.  Gets the linkage data and
- * builds the reply for the client.
- *
- *
- * @param cls closure, a `struct HTD_Context`
- * @param session_hash a session the coin was melted in
- * @param transfer_pub public transfer key for the session
- * @param shared_secret_enc set to shared secret for the session
- */
-static void
-handle_transfer_data (void *cls,
-                      const struct GNUNET_HashCode *session_hash,
-                      const struct TALER_TransferPublicKeyP *transfer_pub,
-                      const struct TALER_EncryptedLinkSecretP *shared_secret_enc)
-{
-  struct HTD_Context *ctx = cls;
-  struct TALER_MINTDB_LinkDataList *ldl;
-  struct TMH_RESPONSE_LinkSessionInfo *lsi;
-
-  if (GNUNET_OK != ctx->status)
-    return;
-  ldl = TMH_plugin->get_link_data_list (TMH_plugin->cls,
-                                        ctx->session,
-                                        session_hash);
-  if (NULL == ldl)
-  {
-    ctx->status = GNUNET_NO;
-    if (MHD_NO ==
-        TMH_RESPONSE_reply_json_pack (ctx->connection,
-                                      MHD_HTTP_NOT_FOUND,
-                                      "{s:s}",
-                                      "error",
-                                      "link data not found (link)"))
-      ctx->status = GNUNET_SYSERR;
-    return;
-  }
-  GNUNET_array_grow (ctx->sessions,
-                     ctx->num_sessions,
-                     ctx->num_sessions + 1);
-  lsi = &ctx->sessions[ctx->num_sessions - 1];
-  lsi->transfer_pub = *transfer_pub;
-  lsi->shared_secret_enc = *shared_secret_enc;
-  lsi->ldl = ldl;
-}
-
-
-/**
- * Execute a "/refresh/link".  Returns the linkage information that
- * will allow the owner of a coin to follow the refresh trail to
- * the refreshed coin.
- *
- * @param connection the MHD connection to handle
- * @param coin_pub public key of the coin to link
- * @return MHD result code
- */
-int
-TMH_DB_execute_refresh_link (struct MHD_Connection *connection,
-                             const struct TALER_CoinSpendPublicKeyP *coin_pub)
-{
-  struct HTD_Context ctx;
-  int res;
-  unsigned int i;
-
-  if (NULL == (ctx.session = TMH_plugin->get_session (TMH_plugin->cls,
-                                                      TMH_test_mode)))
-  {
-    GNUNET_break (0);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-  ctx.connection = connection;
-  ctx.num_sessions = 0;
-  ctx.sessions = NULL;
-  ctx.status = GNUNET_OK;
-  res = TMH_plugin->get_transfer (TMH_plugin->cls,
-                                  ctx.session,
-                                  coin_pub,
-                                  &handle_transfer_data,
-                                  &ctx);
-  if (GNUNET_SYSERR == ctx.status)
-  {
-    res = MHD_NO;
-    goto cleanup;
-  }
-  if (GNUNET_NO == ctx.status)
-  {
-    res = MHD_YES;
-    goto cleanup;
-  }
-  GNUNET_assert (GNUNET_OK == ctx.status);
-  if (0 == ctx.num_sessions)
-    return TMH_RESPONSE_reply_arg_unknown (connection,
-                                           "coin_pub");
-  res = TMH_RESPONSE_reply_refresh_link_success (connection,
-                                                 ctx.num_sessions,
-                                                 ctx.sessions);
- cleanup:
-  for (i=0;i<ctx.num_sessions;i++)
-    TMH_plugin->free_link_data_list (TMH_plugin->cls,
-                                     ctx.sessions[i].ldl);
-  GNUNET_free_non_null (ctx.sessions);
-  return res;
-}
-
-
-/**
- * Add an incoming transaction to the database.  Checks if the
- * transaction is fresh (not a duplicate) and if so adds it to
- * the database.
- *
- * @param connection the MHD connection to handle
- * @param reserve_pub public key of the reserve
- * @param amount amount to add to the reserve
- * @param execution_time when did we receive the wire transfer
- * @param wire details about the wire transfer
- * @return MHD result code
- */
-int
-TMH_DB_execute_admin_add_incoming (struct MHD_Connection *connection,
-                                   const struct TALER_ReservePublicKeyP *reserve_pub,
-                                   const struct TALER_Amount *amount,
-                                   struct GNUNET_TIME_Absolute execution_time,
-                                   json_t *wire)
-{
-  struct TALER_MINTDB_Session *session;
-  int ret;
-
-  if (NULL == (session = TMH_plugin->get_session (TMH_plugin->cls,
-                                                  TMH_test_mode)))
-  {
-    GNUNET_break (0);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-  ret = TMH_plugin->reserves_in_insert (TMH_plugin->cls,
-                                        session,
-                                        reserve_pub,
-                                        amount,
-                                        execution_time,
-                                        wire);
-  if (GNUNET_SYSERR == ret)
-  {
-    GNUNET_break (0);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_OK,
-                                       "{s:s}",
-                                       "status",
-                                       (GNUNET_OK == ret)
-                                       ? "NEW"
-                                       : "DUP");
-}
-
-
-/**
- * Closure for #handle_transaction_data.
- */
-struct WtidTransactionContext
-{
-
-  /**
-   * Total amount of the wire transfer, as calculated by
-   * summing up the individual amounts. To be rounded down
-   * to calculate the real transfer amount at the end.
-   * Only valid if @e is_valid is #GNUNET_YES.
-   */
-  struct TALER_Amount total;
-
-  /**
-   * Public key of the merchant, only valid if @e is_valid
-   * is #GNUNET_YES.
-   */
-  struct TALER_MerchantPublicKeyP merchant_pub;
-
-  /**
-   * Hash of the wire details of the merchant (identical for all
-   * deposits), only valid if @e is_valid is #GNUNET_YES.
-   */
-  struct GNUNET_HashCode h_wire;
-
-  /**
-   * JSON array with details about the individual deposits.
-   */
-  json_t *deposits;
-
-  /**
-   * Initially #GNUNET_NO, if we found no deposits so far.  Set to
-   * #GNUNET_YES if we got transaction data, and the database replies
-   * remained consistent with respect to @e merchant_pub and @e h_wire
-   * (as they should).  Set to #GNUNET_SYSERR if we encountered an
-   * internal error.
-   */
-  int is_valid;
-
-};
-
-
-/**
- * Function called with the results of the lookup of the
- * transaction data for the given wire transfer identifier.
- *
- * @param cls our context for transmission
- * @param merchant_pub public key of the merchant (should be same for all callbacks with the same @e cls)
- * @param h_wire hash of wire transfer details of the merchant (should be same for all callbacks with the same @e cls)
- * @param h_contract which contract was this payment about
- * @param transaction_id merchant's transaction ID for the payment
- * @param coin_pub which public key was this payment about
- * @param deposit_value amount contributed by this coin in total
- * @param deposit_fee deposit fee charged by mint for this coin
- */
-static void
-handle_transaction_data (void *cls,
-                         const struct TALER_MerchantPublicKeyP *merchant_pub,
-                         const struct GNUNET_HashCode *h_wire,
-                         const struct GNUNET_HashCode *h_contract,
-                         uint64_t transaction_id,
-                         const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                         const struct TALER_Amount *deposit_value,
-                         const struct TALER_Amount *deposit_fee)
-{
-  struct WtidTransactionContext *ctx = cls;
-  struct TALER_Amount delta;
-
-  if (GNUNET_SYSERR == ctx->is_valid)
-    return;
-  if (GNUNET_NO == ctx->is_valid)
-  {
-    ctx->merchant_pub = *merchant_pub;
-    ctx->h_wire = *h_wire;
-    ctx->is_valid = GNUNET_YES;
-    if (GNUNET_OK !=
-        TALER_amount_subtract (&ctx->total,
-                               deposit_value,
-                               deposit_fee))
-    {
-      GNUNET_break (0);
-      ctx->is_valid = GNUNET_SYSERR;
-      return;
-    }
-  }
-  else
-  {
-    if ( (0 != memcmp (&ctx->merchant_pub,
-                       merchant_pub,
-                       sizeof (struct TALER_MerchantPublicKeyP))) ||
-         (0 != memcmp (&ctx->h_wire,
-                       h_wire,
-                       sizeof (struct GNUNET_HashCode))) )
-    {
-      GNUNET_break (0);
-      ctx->is_valid = GNUNET_SYSERR;
-      return;
-    }
-    if (GNUNET_OK !=
-        TALER_amount_subtract (&delta,
-                               deposit_value,
-                               deposit_fee))
-    {
-      GNUNET_break (0);
-      ctx->is_valid = GNUNET_SYSERR;
-      return;
-    }
-    if (GNUNET_OK !=
-        TALER_amount_add (&ctx->total,
-                          &ctx->total,
-                          &delta))
-    {
-      GNUNET_break (0);
-      ctx->is_valid = GNUNET_SYSERR;
-      return;
-    }
-  }
-  /* NOTE: We usually keep JSON stuff out of the _DB file, and this
-     is also ugly if we ever add signatures over this data. (#4135) */
-  json_array_append (ctx->deposits,
-                     json_pack ("{s:o, s:o, s:o, s:I, s:o}",
-                                "deposit_value", TALER_json_from_amount (deposit_value),
-                                "deposit_fee", TALER_json_from_amount (deposit_fee),
-                                "H_contract", TALER_json_from_data (h_contract,
-                                                                    sizeof (struct GNUNET_HashCode)),
-                                "transaction_id", (json_int_t) transaction_id,
-                                "coin_pub", TALER_json_from_data (coin_pub,
-                                                                  sizeof (struct TALER_CoinSpendPublicKeyP))));
-}
-
-
-/**
- * Execute a "/wire/deposits".  Returns the transaction information
- * associated with the given wire transfer identifier.
- *
- * @param connection the MHD connection to handle
- * @param wtid wire transfer identifier to resolve
- * @return MHD result code
- */
-int
-TMH_DB_execute_wire_deposits (struct MHD_Connection *connection,
-                             const struct TALER_WireTransferIdentifierRawP *wtid)
-{
-  int ret;
-  struct WtidTransactionContext ctx;
-  struct TALER_MINTDB_Session *session;
-
-  if (NULL == (session = TMH_plugin->get_session (TMH_plugin->cls,
-                                                  TMH_test_mode)))
-  {
-    GNUNET_break (0);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-  ctx.is_valid = GNUNET_NO;
-  ctx.deposits = json_array ();
-  ret = TMH_plugin->lookup_wire_transfer (TMH_plugin->cls,
-                                          session,
-                                          wtid,
-                                          &handle_transaction_data,
-                                          &ctx);
-  if (GNUNET_SYSERR == ret)
-  {
-    GNUNET_break (0);
-    json_decref (ctx.deposits);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-  if (GNUNET_SYSERR == ctx.is_valid)
-  {
-    GNUNET_break (0);
-    json_decref (ctx.deposits);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-  if (GNUNET_NO == ctx.is_valid)
-  {
-    json_decref (ctx.deposits);
-    return TMH_RESPONSE_reply_arg_unknown (connection,
-                                           "wtid");
-  }
-  return TMH_RESPONSE_reply_wire_deposit_details (connection,
-                                                  &ctx.total,
-                                                  &ctx.merchant_pub,
-                                                  &ctx.h_wire,
-                                                  ctx.deposits);
-}
-
-
-/**
- * Closure for #handle_wtid_data.
- */
-struct DepositWtidContext
-{
-
-  /**
-   * Where should we send the reply?
-   */
-  struct MHD_Connection *connection;
-
-  /**
-   * Hash of the contract we are looking up.
-   */
-  struct GNUNET_HashCode h_contract;
-
-  /**
-   * Hash of the wire transfer details we are looking up.
-   */
-  struct GNUNET_HashCode h_wire;
-
-  /**
-   * Public key we are looking up.
-   */
-  struct TALER_CoinSpendPublicKeyP coin_pub;
-
-  /**
-   * Transaction ID we are looking up.
-   */
-  uint64_t transaction_id;
-
-  /**
-   * MHD result code to return.
-   */
-  int res;
-};
-
-
-/**
- * Function called with the results of the lookup of the
- * wire transfer identifier information.
- *
- * @param cls our context for transmission
- * @param wtid raw wire transfer identifier, NULL
- *         if the transaction was not yet done
- * @param coin_contribution how much did the coin we asked about
- *        contribute to the total transfer value? (deposit value including fee)
- * @param coin_fee how much did the mint charge for the deposit fee
- * @param execution_time when was the transaction done, or
- *         when we expect it to be done (if @a wtid was NULL);
- *         #GNUNET_TIME_UNIT_FOREVER_ABS if the /deposit is unknown
- *         to the mint
- */
-static void
-handle_wtid_data (void *cls,
-		  const struct TALER_WireTransferIdentifierRawP *wtid,
-                  const struct TALER_Amount *coin_contribution,
-                  const struct TALER_Amount *coin_fee,
-		  struct GNUNET_TIME_Absolute execution_time)
-{
-  struct DepositWtidContext *ctx = cls;
-  struct TALER_Amount coin_delta;
-
-  if (NULL == wtid)
-  {
-    ctx->res = TMH_RESPONSE_reply_deposit_pending (ctx->connection,
-                                                   execution_time);
-  }
-  else
-  {
-    if (GNUNET_SYSERR ==
-        TALER_amount_subtract (&coin_delta,
-                               coin_contribution,
-                               coin_fee))
-    {
-      GNUNET_break (0);
-      ctx->res = TMH_RESPONSE_reply_internal_db_error (ctx->connection);
-    }
-    else
-    {
-      ctx->res = TMH_RESPONSE_reply_deposit_wtid (ctx->connection,
-                                                  &ctx->h_contract,
-                                                  &ctx->h_wire,
-                                                  &ctx->coin_pub,
-                                                  &coin_delta,
-                                                  ctx->transaction_id,
-                                                  wtid,
-                                                  execution_time);
-    }
-  }
-}
-
-
-/**
- * Execute a "/deposit/wtid".  Returns the transfer information
- * associated with the given deposit.
- *
- * @param connection the MHD connection to handle
- * @param h_contract hash of the contract
- * @param h_wire hash of the wire details
- * @param coin_pub public key of the coin to link
- * @param merchant_pub public key of the merchant
- * @param transaction_id transaction ID of the merchant
- * @return MHD result code
- */
-int
-TMH_DB_execute_deposit_wtid (struct MHD_Connection *connection,
-                             const struct GNUNET_HashCode *h_contract,
-			     const struct GNUNET_HashCode *h_wire,
-			     const struct TALER_CoinSpendPublicKeyP *coin_pub,
-			     const struct TALER_MerchantPublicKeyP *merchant_pub,
-			     uint64_t transaction_id)
-{
-  int ret;
-  struct DepositWtidContext ctx;
-  struct TALER_MINTDB_Session *session;
-
-  if (NULL == (session = TMH_plugin->get_session (TMH_plugin->cls,
-                                                  TMH_test_mode)))
-  {
-    GNUNET_break (0);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-  ctx.connection = connection;
-  ctx.h_contract = *h_contract;
-  ctx.h_wire = *h_wire;
-  ctx.coin_pub = *coin_pub;
-  ctx.transaction_id = transaction_id;
-  ctx.res = GNUNET_SYSERR;
-  ret = TMH_plugin->wire_lookup_deposit_wtid (TMH_plugin->cls,
-                                              session,
-					      h_contract,
-					      h_wire,
-					      coin_pub,
-					      merchant_pub,
-					      transaction_id,
-					      &handle_wtid_data,
-					      &ctx);
-  if (GNUNET_SYSERR == ret)
-  {
-    GNUNET_break (0);
-    GNUNET_break (GNUNET_SYSERR == ctx.res);
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  }
-  if (GNUNET_NO == ret)
-  {
-    GNUNET_break (GNUNET_SYSERR == ctx.res);
-    return TMH_RESPONSE_reply_deposit_unknown (connection);
-  }
-  if (GNUNET_SYSERR == ctx.res)
-  {
-    GNUNET_break (0);
-    return TMH_RESPONSE_reply_internal_error (connection,
-                                              "bug resolving deposit wtid");
-  }
-  return ctx.res;
-}
-
-
-/* end of taler-mint-httpd_db.c */
diff --git a/src/mint/taler-mint-httpd_db.h b/src/mint/taler-mint-httpd_db.h
deleted file mode 100644
index 0327bef2a..000000000
--- a/src/mint/taler-mint-httpd_db.h
+++ /dev/null
@@ -1,230 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint/taler-mint-httpd_db.h
- * @brief High-level (transactional-layer) database operations for the mint
- * @author Chrisitan Grothoff
- */
-#ifndef TALER_MINT_HTTPD_DB_H
-#define TALER_MINT_HTTPD_DB_H
-
-#include <microhttpd.h>
-#include "taler_mintdb_plugin.h"
-
-
-/**
- * Execute a "/deposit".  The validity of the coin and signature
- * have already been checked.  The database must now check that
- * the coin is not (double or over) spent, and execute the
- * transaction (record details, generate success or failure response).
- *
- * @param connection the MHD connection to handle
- * @param deposit information about the deposit
- * @return MHD result code
- */
-int
-TMH_DB_execute_deposit (struct MHD_Connection *connection,
-                        const struct TALER_MINTDB_Deposit *deposit);
-
-
-/**
- * Execute a "/reserve/status".  Given the public key of a reserve,
- * return the associated transaction history.
- *
- * @param connection the MHD connection to handle
- * @param reserve_pub public key of the reserve to check
- * @return MHD result code
- */
-int
-TMH_DB_execute_reserve_status (struct MHD_Connection *connection,
-                               const struct TALER_ReservePublicKeyP *reserve_pub);
-
-
-/**
- * Execute a "/reserve/withdraw".  Given a reserve and a properly signed
- * request to withdraw a coin, check the balance of the reserve and
- * if it is sufficient, store the request and return the signed
- * blinded envelope.
- *
- * @param connection the MHD connection to handle
- * @param reserve public key of the reserve
- * @param denomination_pub public key of the denomination requested
- * @param blinded_msg blinded message to be signed
- * @param blinded_msg_len number of bytes in @a blinded_msg
- * @param signature signature over the withdraw request, to be stored in DB
- * @return MHD result code
- */
-int
-TMH_DB_execute_reserve_withdraw (struct MHD_Connection *connection,
-                                 const struct TALER_ReservePublicKeyP *reserve,
-                                 const struct TALER_DenominationPublicKey *denomination_pub,
-                                 const char *blinded_msg,
-                                 size_t blinded_msg_len,
-                                 const struct TALER_ReserveSignatureP *signature);
-
-
-/**
- * @brief Details about a melt operation of an individual coin.
- */
-struct TMH_DB_MeltDetails
-{
-
-  /**
-   * Information about the coin being melted.
-   */
-  struct TALER_CoinPublicInfo coin_info;
-
-  /**
-   * Signature allowing the melt (using
-   * a `struct TALER_MINTDB_RefreshMeltConfirmSignRequestBody`) to sign over.
-   */
-  struct TALER_CoinSpendSignatureP melt_sig;
-
-  /**
-   * How much of the coin's value did the client allow to be melted?
-   * This amount includes the fees, so the final amount contributed
-   * to the melt is this value minus the fee for melting the coin.
-   */
-  struct TALER_Amount melt_amount_with_fee;
-
-  /**
-   * What fee is earned by the mint?  Set delayed during
-   * #verify_coin_public_info().
-   */
-  struct TALER_Amount melt_fee;
-};
-
-
-/**
- * Execute a "/refresh/melt". We have been given a list of valid
- * coins and a request to melt them into the given
- * @a refresh_session_pub.  Check that the coins all have the
- * required value left and if so, store that they have been
- * melted and confirm the melting operation to the client.
- *
- * @param connection the MHD connection to handle
- * @param session_hash hash code of the session the coins are melted into
- * @param num_new_denoms number of entries in @a denom_pubs, size of y-dimension of @a commit_coin array
- * @param denom_pubs array of public denomination keys for the refresh (?)
- * @param coin_count number of entries in @ a coin_melt_details, size of y-dimension of @a commit_link array
- * @param coin_melt_details signatures and (residual) value of and information about the respective coin to be melted
- * @param commit_coin 2d array of coin commitments (what the mint is to sign
- *                    once the "/refres/reveal" of cut and choose is done)
- * @param commit_link 2d array of coin link commitments (what the mint is
- *                    to return via "/refresh/link" to enable linkage in the
- *                    future)
- * @return MHD result code
- */
-int
-TMH_DB_execute_refresh_melt (struct MHD_Connection *connection,
-                             const struct GNUNET_HashCode *session_hash,
-                             unsigned int num_new_denoms,
-                             const struct TALER_DenominationPublicKey *denom_pubs,
-                             unsigned int coin_count,
-                             const struct TMH_DB_MeltDetails *coin_melt_details,
-                             struct TALER_MINTDB_RefreshCommitCoin *const* commit_coin,
-                             struct TALER_RefreshCommitLinkP *const* commit_link);
-
-
-/**
- * Execute a "/refresh/reveal".  The client is revealing to us the
- * transfer keys for #TALER_CNC_KAPPA-1 sets of coins.  Verify that the
- * revealed transfer keys would allow linkage to the blinded coins,
- * and if so, return the signed coins for corresponding to the set of
- * coins that was not chosen.
- *
- * @param connection the MHD connection to handle
- * @param session_hash hash over the refresh session
- * @param num_oldcoins size of y-dimension of @a transfer_privs array
- * @param transfer_privs array with the revealed transfer keys, #TALER_CNC_KAPPA is 1st-dimension
- * @return MHD result code
- */
-int
-TMH_DB_execute_refresh_reveal (struct MHD_Connection *connection,
-                               const struct GNUNET_HashCode *session_hash,
-                               unsigned int num_oldcoins,
-                               struct TALER_TransferPrivateKeyP **transfer_privs);
-
-
-/**
- * Execute a "/refresh/link".  Returns the linkage information that
- * will allow the owner of a coin to follow the refresh trail to the
- * refreshed coin.
- *
- * @param connection the MHD connection to handle
- * @param coin_pub public key of the coin to link
- * @return MHD result code
- */
-int
-TMH_DB_execute_refresh_link (struct MHD_Connection *connection,
-                             const struct TALER_CoinSpendPublicKeyP *coin_pub);
-
-
-
-/**
- * Add an incoming transaction to the database.
- *
- * @param connection the MHD connection to handle
- * @param reserve_pub public key of the reserve
- * @param amount amount to add to the reserve
- * @param execution_time when did we receive the wire transfer
- * @param wire details about the wire transfer
- * @return MHD result code
- */
-int
-TMH_DB_execute_admin_add_incoming (struct MHD_Connection *connection,
-                                   const struct TALER_ReservePublicKeyP *reserve_pub,
-                                   const struct TALER_Amount *amount,
-                                   struct GNUNET_TIME_Absolute execution_time,
-                                   json_t *wire);
-
-
-/**
- * Execute a "/wire/deposits".  Returns the transaction information
- * associated with the given wire transfer identifier.
- *
- * @param connection the MHD connection to handle
- * @param wtid wire transfer identifier to resolve
- * @return MHD result code
- */
-int
-TMH_DB_execute_wire_deposits (struct MHD_Connection *connection,
-                              const struct TALER_WireTransferIdentifierRawP *wtid);
-
-
-/**
- * Execute a "/deposit/wtid".  Returns the transfer information
- * associated with the given deposit.
- *
- * @param connection the MHD connection to handle
- * @param h_contract hash of the contract
- * @param h_wire hash of the wire details
- * @param coin_pub public key of the coin to link
- * @param merchant_pub public key of the merchant
- * @param transaction_id transaction ID of the merchant
- * @return MHD result code
- */
-int
-TMH_DB_execute_deposit_wtid (struct MHD_Connection *connection,
-                             const struct GNUNET_HashCode *h_contract,
-			     const struct GNUNET_HashCode *h_wire,
-			     const struct TALER_CoinSpendPublicKeyP *coin_pub,
-			     const struct TALER_MerchantPublicKeyP *merchant_pub,
-			     uint64_t transaction_id);
-
-
-#endif
-/* TALER_MINT_HTTPD_DB_H */
diff --git a/src/mint/taler-mint-httpd_deposit.c b/src/mint/taler-mint-httpd_deposit.c
deleted file mode 100644
index 40c5a4db7..000000000
--- a/src/mint/taler-mint-httpd_deposit.c
+++ /dev/null
@@ -1,281 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_deposit.c
- * @brief Handle /deposit requests; parses the POST and JSON and
- *        verifies the coin signature before handing things off
- *        to the database.
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- *
- * TODO:
- * - ugly if-construction for deposit type
- */
-#include "platform.h"
-#include <gnunet/gnunet_util_lib.h>
-#include <jansson.h>
-#include <microhttpd.h>
-#include <pthread.h>
-#include "taler-mint-httpd_parsing.h"
-#include "taler-mint-httpd_deposit.h"
-#include "taler-mint-httpd_responses.h"
-#include "taler-mint-httpd_keystate.h"
-#include "taler-mint-httpd_validation.h"
-
-
-/**
- * We have parsed the JSON information about the deposit, do some
- * basic sanity checks (especially that the signature on the coin is
- * valid, and that this type of coin exists) and then execute the
- * deposit.
- *
- * @param connection the MHD connection to handle
- * @param deposit information about the deposit
- * @return MHD result code
- */
-static int
-verify_and_execute_deposit (struct MHD_Connection *connection,
-                            const struct TALER_MINTDB_Deposit *deposit)
-{
-  struct TMH_KS_StateHandle *key_state;
-  struct TALER_DepositRequestPS dr;
-  struct TALER_MINTDB_DenominationKeyIssueInformation *dki;
-  struct TALER_Amount fee_deposit;
-
-  dr.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_DEPOSIT);
-  dr.purpose.size = htonl (sizeof (struct TALER_DepositRequestPS));
-  dr.h_contract = deposit->h_contract;
-  dr.h_wire = deposit->h_wire;
-  dr.timestamp = GNUNET_TIME_absolute_hton (deposit->timestamp);
-  dr.refund_deadline = GNUNET_TIME_absolute_hton (deposit->refund_deadline);
-  dr.transaction_id = GNUNET_htonll (deposit->transaction_id);
-  TALER_amount_hton (&dr.amount_with_fee,
-                     &deposit->amount_with_fee);
-  TALER_amount_hton (&dr.deposit_fee,
-                     &deposit->deposit_fee);
-  dr.merchant = deposit->merchant_pub;
-  dr.coin_pub = deposit->coin.coin_pub;
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_DEPOSIT,
-                                  &dr.purpose,
-                                  &deposit->csig.eddsa_signature,
-                                  &deposit->coin.coin_pub.eddsa_pub))
-  {
-    TALER_LOG_WARNING ("Invalid signature on /deposit request\n");
-    return TMH_RESPONSE_reply_signature_invalid (connection,
-                                                 "coin_sig");
-  }
-  /* check denomination exists and is valid */
-  key_state = TMH_KS_acquire ();
-  dki = TMH_KS_denomination_key_lookup (key_state,
-                                        &deposit->coin.denom_pub,
-					TMH_KS_DKU_DEPOSIT);
-  if (NULL == dki)
-  {
-    TMH_KS_release (key_state);
-    TALER_LOG_WARNING ("Unknown denomination key in /deposit request\n");
-    return TMH_RESPONSE_reply_arg_unknown (connection,
-                                           "denom_pub");
-  }
-  /* check coin signature */
-  if (GNUNET_YES !=
-      TALER_test_coin_valid (&deposit->coin))
-  {
-    TALER_LOG_WARNING ("Invalid coin passed for /deposit\n");
-    TMH_KS_release (key_state);
-    return TMH_RESPONSE_reply_signature_invalid (connection,
-                                                 "ub_sig");
-  }
-  TALER_amount_ntoh (&fee_deposit,
-                     &dki->issue.properties.fee_deposit);
-  if (0 < TALER_amount_cmp (&fee_deposit,
-                            &deposit->amount_with_fee))
-  {
-    TMH_KS_release (key_state);
-    return TMH_RESPONSE_reply_external_error (connection,
-                                              "deposited amount smaller than depositing fee");
-  }
-  TMH_KS_release (key_state);
-
-  return TMH_DB_execute_deposit (connection,
-                                 deposit);
-}
-
-
-/**
- * Handle a "/deposit" request.  This function parses the
- * JSON information and then calls #verify_and_execute_deposit()
- * to verify the signatures and execute the deposit.
- *
- * @param connection the MHD connection to handle
- * @param root root of the posted JSON
- * @param amount how much should be deposited
- * @param wire json describing the wire details (?)
- * @return MHD result code
-  */
-static int
-parse_and_handle_deposit_request (struct MHD_Connection *connection,
-                                  const json_t *root,
-                                  const struct TALER_Amount *amount,
-                                  json_t *wire)
-{
-  int res;
-  struct TALER_MINTDB_Deposit deposit;
-  struct TALER_MINTDB_DenominationKeyIssueInformation *dki;
-  struct TMH_KS_StateHandle *ks;
-  struct GNUNET_HashCode my_h_wire;
-  struct TMH_PARSE_FieldSpecification spec[] = {
-    TMH_PARSE_member_denomination_public_key ("denom_pub", &deposit.coin.denom_pub),
-    TMH_PARSE_member_denomination_signature ("ub_sig", &deposit.coin.denom_sig),
-    TMH_PARSE_member_fixed ("coin_pub", &deposit.coin.coin_pub),
-    TMH_PARSE_member_fixed ("merchant_pub", &deposit.merchant_pub),
-    TMH_PARSE_member_fixed ("H_contract", &deposit.h_contract),
-    TMH_PARSE_member_fixed ("H_wire", &deposit.h_wire),
-    TMH_PARSE_member_fixed ("coin_sig",  &deposit.csig),
-    TMH_PARSE_member_uint64 ("transaction_id", &deposit.transaction_id),
-    TMH_PARSE_member_time_abs ("timestamp", &deposit.timestamp),
-    TMH_PARSE_member_time_abs ("refund_deadline", &deposit.refund_deadline),
-    TMH_PARSE_member_time_abs ("edate", &deposit.wire_deadline),
-    TMH_PARSE_MEMBER_END
-  };
-
-  memset (&deposit, 0, sizeof (deposit));
-  res = TMH_PARSE_json_data (connection,
-                             root,
-                             spec);
-  if (GNUNET_SYSERR == res)
-    return MHD_NO; /* hard failure */
-  if (GNUNET_NO == res)
-    return MHD_YES; /* failure */
-
-  if (GNUNET_YES !=
-      TMH_json_validate_wireformat (wire))
-  {
-    TMH_PARSE_release_data (spec);
-    return TMH_RESPONSE_reply_arg_unknown (connection,
-                                           "wire");
-  }
-  if (GNUNET_OK !=
-      TALER_hash_json (wire,
-                       &my_h_wire))
-  {
-    TALER_LOG_WARNING ("Failed to parse JSON wire format specification for /deposit request\n");
-    TMH_PARSE_release_data (spec);
-    return TMH_RESPONSE_reply_arg_invalid (connection,
-                                           "wire");
-  }
-  if (0 != memcmp (&deposit.h_wire,
-		   &my_h_wire,
-		   sizeof (struct GNUNET_HashCode)))
-  {
-    /* Client hashed contract differently than we did, reject */
-    TMH_PARSE_release_data (spec);
-    return TMH_RESPONSE_reply_arg_invalid (connection,
-                                           "H_wire");
-  }
-  ks = TMH_KS_acquire ();
-  dki = TMH_KS_denomination_key_lookup (ks,
-                                        &deposit.coin.denom_pub,
-					TMH_KS_DKU_DEPOSIT);
-  if (NULL == dki)
-  {
-    TMH_KS_release (ks);
-    TMH_PARSE_release_data (spec);
-    return TMH_RESPONSE_reply_arg_unknown (connection,
-                                           "denom_pub");
-  }
-  TALER_amount_ntoh (&deposit.deposit_fee,
-                     &dki->issue.properties.fee_deposit);
-  TMH_KS_release (ks);
-  deposit.wire = wire;
-  deposit.amount_with_fee = *amount;
-  if (-1 == TALER_amount_cmp (&deposit.amount_with_fee,
-                              &deposit.deposit_fee))
-  {
-    /* Total amount smaller than fee, invalid */
-     TMH_PARSE_release_data (spec);
-    return TMH_RESPONSE_reply_arg_invalid (connection,
-                                           "f");
-  }
-  res = verify_and_execute_deposit (connection,
-                                    &deposit);
-  TMH_PARSE_release_data (spec);
-  return res;
-}
-
-
-/**
- * Handle a "/deposit" request.  Parses the JSON in the post to find
- * the "type" (either DIRECT_DEPOSIT or INCREMENTAL_DEPOSIT), and, if
- * successful, passes the JSON data to
- * #parse_and_handle_deposit_request() to further check the details
- * of the operation specified in the "wire" field of the JSON data.
- * If everything checks out, this will ultimately lead to the
- * "/deposit" being executed, or rejected.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_DEPOSIT_handler_deposit (struct TMH_RequestHandler *rh,
-                             struct MHD_Connection *connection,
-                             void **connection_cls,
-                             const char *upload_data,
-                             size_t *upload_data_size)
-{
-  json_t *json;
-  json_t *wire;
-  int res;
-  struct TALER_Amount amount;
-  struct TMH_PARSE_FieldSpecification spec[] = {
-    TMH_PARSE_member_object ("wire", &wire),
-    TMH_PARSE_member_amount ("f", &amount),
-    TMH_PARSE_MEMBER_END
-  };
-
-  res = TMH_PARSE_post_json (connection,
-                             connection_cls,
-                             upload_data,
-                             upload_data_size,
-                             &json);
-  if (GNUNET_SYSERR == res)
-    return MHD_NO;
-  if ( (GNUNET_NO == res) || (NULL == json) )
-    return MHD_YES;
-  res = TMH_PARSE_json_data (connection,
-                             json,
-                             spec);
-  if (GNUNET_OK != res)
-  {
-    json_decref (json);
-    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
-  }
-  res = parse_and_handle_deposit_request (connection,
-                                          json,
-                                          &amount,
-                                          wire);
-  TMH_PARSE_release_data (spec);
-  json_decref (json);
-  return res;
-}
-
-
-/* end of taler-mint-httpd_deposit.c */
diff --git a/src/mint/taler-mint-httpd_deposit.h b/src/mint/taler-mint-httpd_deposit.h
deleted file mode 100644
index c2d3fe13c..000000000
--- a/src/mint/taler-mint-httpd_deposit.h
+++ /dev/null
@@ -1,54 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_deposit.h
- * @brief Handle /deposit requests
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#ifndef TALER_MINT_HTTPD_DEPOSIT_H
-#define TALER_MINT_HTTPD_DEPOSIT_H
-
-#include <gnunet/gnunet_util_lib.h>
-#include <microhttpd.h>
-#include "taler-mint-httpd.h"
-
-
-/**
- * Handle a "/deposit" request.  Parses the JSON in the post to find
- * the "type" (either DIRECT_DEPOSIT or INCREMENTAL_DEPOSIT), and, if
- * successful, passes the JSON data to
- * #parse_and_handle_deposit_request() to further check the details
- * of the operation specified in the "wire" field of the JSON data.
- * If everything checks out, this will ultimately lead to the
- * "/deposit" being executed, or rejected.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_DEPOSIT_handler_deposit (struct TMH_RequestHandler *rh,
-                             struct MHD_Connection *connection,
-                             void **connection_cls,
-                             const char *upload_data,
-                             size_t *upload_data_size);
-
-#endif
diff --git a/src/mint/taler-mint-httpd_keystate.c b/src/mint/taler-mint-httpd_keystate.c
deleted file mode 100644
index f1856e673..000000000
--- a/src/mint/taler-mint-httpd_keystate.c
+++ /dev/null
@@ -1,1011 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_keystate.c
- * @brief management of our coin signing keys
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <pthread.h>
-#include "taler-mint-httpd_keystate.h"
-#include "taler-mint-httpd_responses.h"
-#include "taler_mintdb_plugin.h"
-
-
-/**
- * Snapshot of the (coin and signing) keys (including private keys) of
- * the mint.  There can be multiple instances of this struct, as it is
- * reference counted and only destroyed once the last user is done
- * with it.  The current instance is acquired using
- * #TMH_KS_acquire().  Using this function increases the
- * reference count.  The contents of this structure (except for the
- * reference counter) should be considered READ-ONLY until it is
- * ultimately destroyed (as there can be many concurrent users).
- */
-struct TMH_KS_StateHandle
-{
-  /**
-   * JSON array with denomination keys.  (Currently not really used
-   * after initialization.)
-   */
-  json_t *denom_keys_array;
-
-  /**
-   * JSON array with signing keys. (Currently not really used
-   * after initialization.)
-   */
-  json_t *sign_keys_array;
-
-  /**
-   * JSON array with auditor information. (Currently not really used
-   * after initialization.)
-   */
-  json_t *auditors_array;
-
-  /**
-   * Cached JSON text that the mint will send for a "/keys" request.
-   * Includes our @e TMH_master_public_key public key, the signing and
-   * denomination keys as well as the @e reload_time.
-   */
-  char *keys_json;
-
-  /**
-   * Mapping from denomination keys to denomination key issue struct.
-   * Used to lookup the key by hash.
-   */
-  struct GNUNET_CONTAINER_MultiHashMap *denomkey_map;
-
-  /**
-   * Hash context we used to combine the hashes of all denomination
-   * keys into one big hash.
-   */
-  struct GNUNET_HashContext *hash_context;
-
-  /**
-   * When did we initiate the key reloading?
-   */
-  struct GNUNET_TIME_Absolute reload_time;
-
-  /**
-   * When is the next key invalid and we have to reload? (We also
-   * reload on SIGUSR1.)
-   */
-  struct GNUNET_TIME_Absolute next_reload;
-
-  /**
-   * Mint signing key that should be used currently.
-   */
-  struct TALER_MINTDB_PrivateSigningKeyInformationP current_sign_key_issue;
-
-  /**
-   * Reference count.  The struct is released when the RC hits zero.
-   */
-  unsigned int refcnt;
-};
-
-
-/**
- * Mint key state.  Never use directly, instead access via
- * #TMH_KS_acquire() and #TMH_KS_release().
- */
-static struct TMH_KS_StateHandle *internal_key_state;
-
-/**
- * Mutex protecting access to #internal_key_state.
- */
-static pthread_mutex_t internal_key_state_mutex = PTHREAD_MUTEX_INITIALIZER;
-
-/**
- * Pipe used for signaling reloading of our key state.
- */
-static int reload_pipe[2];
-
-
-/**
- * Convert the public part of a denomination key issue to a JSON
- * object.
- *
- * @param pk public key of the denomination key
- * @param dki the denomination key issue
- * @return a JSON object describing the denomination key isue (public part)
- */
-static json_t *
-denom_key_issue_to_json (const struct TALER_DenominationPublicKey *pk,
-                         const struct TALER_MINTDB_DenominationKeyInformationP *dki)
-{
-  struct TALER_Amount value;
-  struct TALER_Amount fee_withdraw;
-  struct TALER_Amount fee_deposit;
-  struct TALER_Amount fee_refresh;
-
-  TALER_amount_ntoh (&value,
-                     &dki->properties.value);
-  TALER_amount_ntoh (&fee_withdraw,
-                     &dki->properties.fee_withdraw);
-  TALER_amount_ntoh (&fee_deposit,
-                     &dki->properties.fee_deposit);
-  TALER_amount_ntoh (&fee_refresh,
-                     &dki->properties.fee_refresh);
-  return
-    json_pack ("{s:o, s:o, s:o, s:o, s:o, s:o, s:o, s:o, s:o, s:o}",
-               "master_sig",
-               TALER_json_from_data (&dki->signature,
-                                     sizeof (struct GNUNET_CRYPTO_EddsaSignature)),
-               "stamp_start",
-               TALER_json_from_abs (GNUNET_TIME_absolute_ntoh (dki->properties.start)),
-               "stamp_expire_withdraw",
-               TALER_json_from_abs (GNUNET_TIME_absolute_ntoh (dki->properties.expire_withdraw)),
-               "stamp_expire_deposit",
-               TALER_json_from_abs (GNUNET_TIME_absolute_ntoh (dki->properties.expire_spend)),
-               "stamp_expire_legal",
-               TALER_json_from_abs (GNUNET_TIME_absolute_ntoh (dki->properties.expire_legal)),
-               "denom_pub",
-               TALER_json_from_rsa_public_key (pk->rsa_public_key),
-               "value",
-               TALER_json_from_amount (&value),
-               "fee_withdraw",
-               TALER_json_from_amount (&fee_withdraw),
-               "fee_deposit",
-               TALER_json_from_amount (&fee_deposit),
-               "fee_refresh",
-               TALER_json_from_amount (&fee_refresh));
-}
-
-
-/**
- * Get the relative time value that describes how
- * far in the future do we want to provide coin keys.
- *
- * @return the provide duration
- */
-static struct GNUNET_TIME_Relative
-TALER_MINT_conf_duration_provide ()
-{
-  struct GNUNET_TIME_Relative rel;
-
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_time (cfg,
-                                           "mint_keys",
-                                           "lookahead_provide",
-                                           &rel))
-  {
-    GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
-                               "mint_keys",
-                               "lookahead_provide",
-                               "time value required");
-    GNUNET_assert (0);
-  }
-  return rel;
-}
-
-
-/**
- * Iterator for (re)loading/initializing denomination keys.
- *
- * @param cls closure
- * @param dki the denomination key issue
- * @param alias coin alias
- * @return #GNUNET_OK to continue to iterate,
- *  #GNUNET_NO to stop iteration with no error,
- *  #GNUNET_SYSERR to abort iteration with error!
- */
-static int
-reload_keys_denom_iter (void *cls,
-                        const char *alias,
-                        const struct TALER_MINTDB_DenominationKeyIssueInformation *dki)
-{
-  struct TMH_KS_StateHandle *ctx = cls;
-  struct GNUNET_TIME_Absolute now;
-  struct GNUNET_TIME_Absolute horizon;
-  struct GNUNET_HashCode denom_key_hash;
-  struct TALER_MINTDB_DenominationKeyIssueInformation *d2;
-  struct TALER_MINTDB_Session *session;
-  int res;
-
-  GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-              "Loading denomination key `%s'\n",
-              alias);
-  horizon = GNUNET_TIME_relative_to_absolute (TALER_MINT_conf_duration_provide ());
-  if (GNUNET_TIME_absolute_ntoh (dki->issue.properties.start).abs_value_us >
-      horizon.abs_value_us)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "Skipping future denomination key `%s'\n",
-                alias);
-    return GNUNET_OK;
-  }
-  now = GNUNET_TIME_absolute_get ();
-  if (GNUNET_TIME_absolute_ntoh (dki->issue.properties.expire_spend).abs_value_us <
-      now.abs_value_us)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "Skipping expired denomination key `%s'\n",
-                alias);
-    return GNUNET_OK;
-  }
-
-  GNUNET_CRYPTO_rsa_public_key_hash (dki->denom_pub.rsa_public_key,
-                                     &denom_key_hash);
-  GNUNET_CRYPTO_hash_context_read (ctx->hash_context,
-                                   &denom_key_hash,
-                                   sizeof (struct GNUNET_HashCode));
-  session = TMH_plugin->get_session (TMH_plugin->cls,
-                                     TMH_test_mode);
-  if (NULL == session)
-    return GNUNET_SYSERR;
-  /* Try to insert DKI into DB until we succeed; note that if the DB
-     failure is persistent, this code may loop forever (as there is no
-     sane alternative, we cannot continue without the DKI being in the
-     DB). */
-  res = GNUNET_SYSERR;
-  while (GNUNET_OK != res)
-  {
-    res = TMH_plugin->start (TMH_plugin->cls,
-                             session);
-    if (GNUNET_OK != res)
-    {
-      /* Transaction start failed!? Very bad error, log and retry */
-      GNUNET_break (0);
-      continue;
-    }
-    res = TMH_plugin->get_denomination_info (TMH_plugin->cls,
-                                             session,
-                                             &dki->denom_pub,
-                                             NULL);
-    if (GNUNET_SYSERR == res)
-    {
-      /* Fetch failed!? Very bad error, log and retry */
-      GNUNET_break (0);
-      TMH_plugin->rollback (TMH_plugin->cls,
-                            session);
-      continue;
-    }
-    if (GNUNET_OK == res)
-    {
-      /* Record exists, we're good, just exit */
-      TMH_plugin->rollback (TMH_plugin->cls,
-                            session);
-      break;
-    }
-    res = TMH_plugin->insert_denomination_info (TMH_plugin->cls,
-                                                session,
-                                                &dki->denom_pub,
-                                                &dki->issue);
-    if (GNUNET_OK != res)
-    {
-      /* Insert failed!? Very bad error, log and retry */
-      GNUNET_break (0);
-      TMH_plugin->rollback (TMH_plugin->cls,
-                            session);
-      continue;
-    }
-    res = TMH_plugin->commit (TMH_plugin->cls,
-                              session);
-    /* If commit succeeded, we're done, otherwise we retry; this
-       time without logging, as theroetically commits can fail
-       in a transactional DB due to concurrent activities that
-       cannot be reconciled. This should be rare for DKIs, but
-       as it is possible we just retry until we succeed. */
-  }
-
-  d2 = GNUNET_new (struct TALER_MINTDB_DenominationKeyIssueInformation);
-  d2->issue = dki->issue;
-  d2->denom_priv.rsa_private_key
-    = GNUNET_CRYPTO_rsa_private_key_dup (dki->denom_priv.rsa_private_key);
-  d2->denom_pub.rsa_public_key
-    = GNUNET_CRYPTO_rsa_public_key_dup (dki->denom_pub.rsa_public_key);
-  res = GNUNET_CONTAINER_multihashmap_put (ctx->denomkey_map,
-                                           &denom_key_hash,
-                                           d2,
-                                           GNUNET_CONTAINER_MULTIHASHMAPOPTION_UNIQUE_ONLY);
-  if (GNUNET_OK != res)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                "Duplicate denomination key `%s'\n",
-                alias);
-    GNUNET_CRYPTO_rsa_private_key_free (d2->denom_priv.rsa_private_key);
-    GNUNET_CRYPTO_rsa_public_key_free (d2->denom_pub.rsa_public_key);
-    GNUNET_free (d2);
-    return GNUNET_OK;
-  }
-  json_array_append_new (ctx->denom_keys_array,
-                         denom_key_issue_to_json (&dki->denom_pub,
-                                                  &dki->issue));
-  return GNUNET_OK;
-}
-
-
-/**
- * Convert the public part of a sign key issue to a JSON object.
- *
- * @param ski the sign key issue
- * @return a JSON object describing the sign key issue (public part)
- */
-static json_t *
-sign_key_issue_to_json (const struct TALER_MintSigningKeyValidityPS *ski)
-{
-  return
-    json_pack ("{s:o, s:o, s:o, s:o, s:o, s:o}",
-               "stamp_start",
-               TALER_json_from_abs (GNUNET_TIME_absolute_ntoh (ski->start)),
-               "stamp_expire",
-               TALER_json_from_abs (GNUNET_TIME_absolute_ntoh (ski->expire)),
-               "stamp_end",
-               TALER_json_from_abs (GNUNET_TIME_absolute_ntoh (ski->end)),
-               "master_pub",
-               TALER_json_from_data (&ski->master_public_key,
-                                     sizeof (struct TALER_MasterPublicKeyP)),
-               "master_sig",
-               TALER_json_from_data (&ski->signature,
-                                     sizeof (struct TALER_MasterSignatureP)),
-               "key",
-               TALER_json_from_data (&ski->signkey_pub,
-                                     sizeof (struct TALER_MintPublicKeyP)));
-}
-
-
-/**
- * Iterator for sign keys.
- *
- * @param cls closure with the `struct TMH_KS_StateHandle *`
- * @param filename name of the file the key came from
- * @param ski the sign key issue
- * @return #GNUNET_OK to continue to iterate,
- *  #GNUNET_NO to stop iteration with no error,
- *  #GNUNET_SYSERR to abort iteration with error!
- */
-static int
-reload_keys_sign_iter (void *cls,
-                       const char *filename,
-                       const struct TALER_MINTDB_PrivateSigningKeyInformationP *ski)
-{
-  struct TMH_KS_StateHandle *ctx = cls;
-  struct GNUNET_TIME_Absolute now;
-  struct GNUNET_TIME_Absolute horizon;
-
-  horizon = GNUNET_TIME_relative_to_absolute (TALER_MINT_conf_duration_provide ());
-  if (GNUNET_TIME_absolute_ntoh (ski->issue.start).abs_value_us >
-      horizon.abs_value_us)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "Skipping future signing key `%s'\n",
-                filename);
-    return GNUNET_OK;
-  }
-  now = GNUNET_TIME_absolute_get ();
-  if (GNUNET_TIME_absolute_ntoh (ski->issue.expire).abs_value_us <
-      now.abs_value_us)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "Skipping expired signing key `%s'\n",
-                filename);
-    return GNUNET_OK;
-  }
-
-  /* The signkey is valid at this time, check if it's more recent than
-     what we have so far! */
-  if ( (GNUNET_TIME_absolute_ntoh (ctx->current_sign_key_issue.issue.start).abs_value_us <
-        GNUNET_TIME_absolute_ntoh (ski->issue.start).abs_value_us) &&
-       (GNUNET_TIME_absolute_ntoh (ski->issue.start).abs_value_us <
-        now.abs_value_us) )
-  {
-    /* We use the most recent one, if it is valid now (not just in the near future) */
-    ctx->current_sign_key_issue = *ski;
-  }
-  json_array_append_new (ctx->sign_keys_array,
-                         sign_key_issue_to_json (&ski->issue));
-
-  return GNUNET_OK;
-}
-
-
-/**
- * Convert information from an auditor to a JSON object.
- *
- * @param apub the auditor's public key
- * @param dki_len length of @a dki and @a asigs arrays
- * @param asigs the auditor's signatures
- * @param dki array of denomination coin data signed by the auditor
- * @return a JSON object describing the auditor information and signature
- */
-static json_t *
-auditor_to_json (const struct TALER_AuditorPublicKeyP *apub,
-                 unsigned int dki_len,
-                 const struct TALER_AuditorSignatureP **asigs,
-                 const struct TALER_DenominationKeyValidityPS **dki)
-{
-  unsigned int i;
-  json_t *ja;
-
-  ja = json_array ();
-  for (i=0;i<dki_len;i++)
-    json_array_append_new (ja,
-                           json_pack ("{s:o, s:o}",
-                                      "denom_pub_h",
-                                      TALER_json_from_data (&dki[i]->denom_hash,
-                                                            sizeof (struct GNUNET_HashCode)),
-                                      "auditor_sig",
-                                      TALER_json_from_data (asigs[i],
-                                                            sizeof (struct TALER_AuditorSignatureP))));
-  return
-    json_pack ("{s:o, s:o}",
-               "denomination_keys", ja,
-               "auditor_pub",
-               TALER_json_from_data (apub,
-                                     sizeof (struct TALER_AuditorPublicKeyP)));
-}
-
-
-/**
- * @brief Iterator called with auditor information.
- * Check that the @a mpub actually matches this mint, and then
- * add the auditor information to our /keys response (if it is
- * (still) applicable).
- *
- * @param cls closure with the `struct TMH_KS_StateHandle *`
- * @param apub the auditor's public key
- * @param mpub the mint's public key (as expected by the auditor)
- * @param dki_len length of @a dki and @a asigs
- * @param asigs array with the auditor's signatures, of length @a dki_len
- * @param dki array of denomination coin data signed by the auditor
- * @return #GNUNET_OK to continue to iterate,
- *  #GNUNET_NO to stop iteration with no error,
- *  #GNUNET_SYSERR to abort iteration with error!
- */
-static int
-reload_auditor_iter (void *cls,
-                     const struct TALER_AuditorPublicKeyP *apub,
-                     const struct TALER_MasterPublicKeyP *mpub,
-                     unsigned int dki_len,
-                     const struct TALER_AuditorSignatureP *asigs,
-                     const struct TALER_DenominationKeyValidityPS *dki)
-{
-  struct TMH_KS_StateHandle *ctx = cls;
-  unsigned int i;
-  unsigned int keep;
-  const struct TALER_AuditorSignatureP *kept_asigs[dki_len];
-  const struct TALER_DenominationKeyValidityPS *kept_dkis[dki_len];
-
-  /* Check if the signature is at least for this mint. */
-  if (0 != memcmp (&mpub->eddsa_pub,
-                   &TMH_master_public_key,
-                   sizeof (struct GNUNET_CRYPTO_EddsaPublicKey)))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                "Auditing information provided for a different mint, ignored\n");
-    return GNUNET_OK;
-  }
-  /* Filter the auditor information for those for which the
-     keys actually match the denomination keys that are active right now */
-  keep = 0;
-  for (i=0;i<dki_len;i++)
-  {
-    if (GNUNET_YES ==
-        GNUNET_CONTAINER_multihashmap_contains (ctx->denomkey_map,
-                                                &dki[i].denom_hash))
-    {
-      kept_asigs[keep] = &asigs[i];
-      kept_dkis[keep] = &dki[i];
-      keep++;
-    }
-  }
-  /* add auditor information to our /keys response */
-  json_array_append_new (ctx->auditors_array,
-                         auditor_to_json (apub,
-                                          keep,
-                                          kept_asigs,
-                                          kept_dkis));
-  return GNUNET_OK;
-}
-
-
-/**
- * Iterator for freeing denomination keys.
- *
- * @param cls closure with the `struct TMH_KS_StateHandle`
- * @param key key for the denomination key
- * @param value coin details
- * @return #GNUNET_OK to continue to iterate,
- *  #GNUNET_NO to stop iteration with no error,
- *  #GNUNET_SYSERR to abort iteration with error!
- */
-static int
-free_denom_key (void *cls,
-                const struct GNUNET_HashCode *key,
-                void *value)
-{
-  struct TALER_MINTDB_DenominationKeyIssueInformation *dki = value;
-
-  GNUNET_CRYPTO_rsa_private_key_free (dki->denom_priv.rsa_private_key);
-  GNUNET_CRYPTO_rsa_public_key_free (dki->denom_pub.rsa_public_key);
-  GNUNET_free (dki);
-  return GNUNET_OK;
-}
-
-
-/**
- * Release key state, free if necessary (if reference count gets to zero).
- * Internal method used when the mutex is already held.
- *
- * @param key_state the key state to release
- */
-static void
-ks_release_ (struct TMH_KS_StateHandle *key_state)
-{
-  GNUNET_assert (0 < key_state->refcnt);
-  key_state->refcnt--;
-  if (0 == key_state->refcnt)
-  {
-    if (NULL != key_state->denom_keys_array)
-    {
-      json_decref (key_state->denom_keys_array);
-      key_state->denom_keys_array = NULL;
-    }
-    if (NULL != key_state->sign_keys_array)
-    {
-      json_decref (key_state->sign_keys_array);
-      key_state->sign_keys_array = NULL;
-    }
-    if (NULL != key_state->denomkey_map)
-    {
-      GNUNET_CONTAINER_multihashmap_iterate (key_state->denomkey_map,
-                                             &free_denom_key,
-                                             key_state);
-      GNUNET_CONTAINER_multihashmap_destroy (key_state->denomkey_map);
-      key_state->denomkey_map = NULL;
-    }
-    GNUNET_free_non_null (key_state->keys_json);
-    GNUNET_free (key_state);
-  }
-}
-
-
-/**
- * Release key state, free if necessary (if reference count gets to zero).
- *
- * @param location name of the function in which the lock is acquired
- * @param key_state the key state to release
- */
-void
-TMH_KS_release_ (const char *location,
-                 struct TMH_KS_StateHandle *key_state)
-{
-  GNUNET_assert (0 == pthread_mutex_lock (&internal_key_state_mutex));
-  ks_release_ (key_state);
-  GNUNET_assert (0 == pthread_mutex_unlock (&internal_key_state_mutex));
-}
-
-
-/**
- * Acquire the key state of the mint.  Updates keys if necessary.
- * For every call to #TMH_KS_acquire(), a matching call
- * to #TMH_KS_release() must be made.
- *
- * @param location name of the function in which the lock is acquired
- * @return the key state
- */
-struct TMH_KS_StateHandle *
-TMH_KS_acquire_ (const char *location)
-{
-  struct GNUNET_TIME_Absolute now = GNUNET_TIME_absolute_get ();
-  struct TMH_KS_StateHandle *key_state;
-  json_t *keys;
-  struct TALER_MintKeySetPS ks;
-  struct TALER_MintSignatureP sig;
-
-  GNUNET_assert (0 == pthread_mutex_lock (&internal_key_state_mutex));
-  if ( (NULL != internal_key_state) &&
-       (internal_key_state->next_reload.abs_value_us <= now.abs_value_us) )
-  {
-    ks_release_ (internal_key_state);
-    internal_key_state = NULL;
-  }
-  if (NULL == internal_key_state)
-  {
-    key_state = GNUNET_new (struct TMH_KS_StateHandle);
-    key_state->hash_context = GNUNET_CRYPTO_hash_context_start ();
-
-
-    key_state->denom_keys_array = json_array ();
-    GNUNET_assert (NULL != key_state->denom_keys_array);
-
-    key_state->sign_keys_array = json_array ();
-    GNUNET_assert (NULL != key_state->sign_keys_array);
-
-    key_state->auditors_array = json_array ();
-    GNUNET_assert (NULL != key_state->auditors_array);
-
-    key_state->denomkey_map = GNUNET_CONTAINER_multihashmap_create (32,
-                                                                    GNUNET_NO);
-    key_state->reload_time = GNUNET_TIME_absolute_get ();
-    TALER_round_abs_time (&key_state->reload_time);
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "Loading keys from `%s'\n",
-                TMH_mint_directory);
-    TALER_MINTDB_denomination_keys_iterate (TMH_mint_directory,
-                                            &reload_keys_denom_iter,
-                                            key_state);
-    TALER_MINTDB_signing_keys_iterate (TMH_mint_directory,
-                                       &reload_keys_sign_iter,
-                                       key_state);
-    TALER_MINTDB_auditor_iterate (TMH_mint_directory,
-                                  &reload_auditor_iter,
-                                  key_state);
-    ks.purpose.size = htonl (sizeof (ks));
-    ks.purpose.purpose = htonl (TALER_SIGNATURE_MINT_KEY_SET);
-    ks.list_issue_date = GNUNET_TIME_absolute_hton (key_state->reload_time);
-    GNUNET_CRYPTO_hash_context_finish (key_state->hash_context,
-                                       &ks.hc);
-    key_state->hash_context = NULL;
-    GNUNET_assert (GNUNET_OK ==
-                   GNUNET_CRYPTO_eddsa_sign (&key_state->current_sign_key_issue.signkey_priv.eddsa_priv,
-                                             &ks.purpose,
-                                             &sig.eddsa_signature));
-    key_state->next_reload = GNUNET_TIME_absolute_ntoh (key_state->current_sign_key_issue.issue.expire);
-    if (0 == key_state->next_reload.abs_value_us)
-      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                  "No valid signing key found!\n");
-
-    keys = json_pack ("{s:o, s:o, s:o, s:o, s:o, s:o, s:o}",
-                      "master_public_key",
-                      TALER_json_from_data (&TMH_master_public_key,
-                                            sizeof (struct GNUNET_CRYPTO_EddsaPublicKey)),
-                      "signkeys", key_state->sign_keys_array,
-                      "denoms", key_state->denom_keys_array,
-                      "auditors", key_state->auditors_array,
-                      "list_issue_date", TALER_json_from_abs (key_state->reload_time),
-                      "eddsa_pub", TALER_json_from_data (&key_state->current_sign_key_issue.issue.signkey_pub,
-                                                         sizeof (struct TALER_MintPublicKeyP)),
-                      "eddsa_sig", TALER_json_from_data (&sig,
-                                                         sizeof (struct TALER_MintSignatureP)));
-    key_state->auditors_array = NULL;
-    key_state->sign_keys_array = NULL;
-    key_state->denom_keys_array = NULL;
-    key_state->keys_json = json_dumps (keys,
-                                       JSON_INDENT (2));
-    json_decref (keys);
-    internal_key_state = key_state;
-  }
-  key_state = internal_key_state;
-  key_state->refcnt++;
-  GNUNET_assert (0 == pthread_mutex_unlock (&internal_key_state_mutex));
-
-  return key_state;
-}
-
-
-/**
- * Look up the issue for a denom public key.
- *
- * @param key_state state to look in
- * @param denom_pub denomination public key
- * @param use purpose for which the key is being located
- * @return the denomination key issue,
- *         or NULL if denom_pub could not be found
- */
-struct TALER_MINTDB_DenominationKeyIssueInformation *
-TMH_KS_denomination_key_lookup (const struct TMH_KS_StateHandle *key_state,
-                                const struct TALER_DenominationPublicKey *denom_pub,
-				enum TMH_KS_DenominationKeyUse use)
-{
-  struct GNUNET_HashCode hc;
-  struct TALER_MINTDB_DenominationKeyIssueInformation *dki;
-  struct GNUNET_TIME_Absolute now;
-
-  GNUNET_CRYPTO_rsa_public_key_hash (denom_pub->rsa_public_key,
-                                     &hc);
-  dki = GNUNET_CONTAINER_multihashmap_get (key_state->denomkey_map,
-					   &hc);
-  if (NULL == dki)
-    return NULL;
-  now = GNUNET_TIME_absolute_get ();
-  if (now.abs_value_us <
-      GNUNET_TIME_absolute_ntoh (dki->issue.properties.start).abs_value_us)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-		"Not returning DKI for %s, as start time is in the future\n",
-		GNUNET_h2s (&hc));
-    return NULL;
-  }
-  now = GNUNET_TIME_absolute_get ();
-  switch (use)
-  {
-  case TMH_KS_DKU_WITHDRAW:
-    if (now.abs_value_us >
-	GNUNET_TIME_absolute_ntoh (dki->issue.properties.expire_withdraw).abs_value_us)
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-		  "Not returning DKI for %s, as time to create coins has passed\n",
-		  GNUNET_h2s (&hc));
-      return NULL;
-    }
-    break;
-  case TMH_KS_DKU_DEPOSIT:
-    if (now.abs_value_us >
-	GNUNET_TIME_absolute_ntoh (dki->issue.properties.expire_spend).abs_value_us)
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-		  "Not returning DKI for %s, as time to spend coin has passed\n",
-		  GNUNET_h2s (&hc));
-      return NULL;
-    }
-    break;
-  }
-  return dki;
-}
-
-
-/**
- * Handle a signal, writing relevant signal numbers to the pipe.
- *
- * @param signal_number the signal number
- */
-static void
-handle_signal (int signal_number)
-{
-  ssize_t res;
-  char c = signal_number;
-
-  res = write (reload_pipe[1],
-               &c,
-               1);
-  if ( (res < 0) &&
-       (EINTR != errno) )
-  {
-    GNUNET_break (0);
-    return;
-  }
-  if (0 == res)
-  {
-    GNUNET_break (0);
-    return;
-  }
-}
-
-
-/**
- * Call #handle_signal() to pass the received signal via
- * the control pipe.
- */
-static void
-handle_sigusr1 ()
-{
-  handle_signal (SIGUSR1);
-}
-
-
-/**
- * Call #handle_signal() to pass the received signal via
- * the control pipe.
- */
-static void
-handle_sigint ()
-{
-  handle_signal (SIGINT);
-}
-
-
-/**
- * Call #handle_signal() to pass the received signal via
- * the control pipe.
- */
-static void
-handle_sigterm ()
-{
-  handle_signal (SIGTERM);
-}
-
-
-/**
- * Call #handle_signal() to pass the received signal via
- * the control pipe.
- */
-static void
-handle_sighup ()
-{
-  handle_signal (SIGHUP);
-}
-
-
-/**
- * Call #handle_signal() to pass the received signal via
- * the control pipe.
- */
-static void
-handle_sigchld ()
-{
-  handle_signal (SIGCHLD);
-}
-
-
-/**
- * Read signals from a pipe in a loop, and reload keys from disk if
- * SIGUSR1 is received, terminate if SIGTERM/SIGINT is received, and
- * restart if SIGHUP is received.
- *
- * @return #GNUNET_SYSERR on errors,
- *         #GNUNET_OK to terminate normally
- *         #GNUNET_NO to restart an update version of the binary
- */
-int
-TMH_KS_loop (void)
-{
-  struct GNUNET_SIGNAL_Context *sigusr1;
-  struct GNUNET_SIGNAL_Context *sigterm;
-  struct GNUNET_SIGNAL_Context *sigint;
-  struct GNUNET_SIGNAL_Context *sighup;
-  struct GNUNET_SIGNAL_Context *sigchld;
-  int ret;
-
-  if (0 != pipe (reload_pipe))
-  {
-    fprintf (stderr,
-             "Failed to create pipe.\n");
-    return GNUNET_SYSERR;
-  }
-  sigusr1 = GNUNET_SIGNAL_handler_install (SIGUSR1,
-                                           &handle_sigusr1);
-  sigterm = GNUNET_SIGNAL_handler_install (SIGTERM,
-                                           &handle_sigterm);
-  sigint = GNUNET_SIGNAL_handler_install (SIGINT,
-                                          &handle_sigint);
-  sighup = GNUNET_SIGNAL_handler_install (SIGHUP,
-                                          &handle_sighup);
-  sigchld = GNUNET_SIGNAL_handler_install (SIGCHLD,
-                                           &handle_sigchld);
-
-  ret = 0;
-  while (0 == ret)
-  {
-    char c;
-    ssize_t res;
-
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "(re-)loading keys\n");
-    if (NULL != internal_key_state)
-    {
-      TMH_KS_release (internal_key_state);
-      internal_key_state = NULL;
-    }
-    /* This will re-initialize 'internal_key_state' with
-       an initial refcnt of 1 */
-    (void) TMH_KS_acquire ();
-
-read_again:
-    errno = 0;
-    res = read (reload_pipe[0],
-                &c,
-                1);
-    if ((res < 0) && (EINTR != errno))
-    {
-      GNUNET_break (0);
-      ret = GNUNET_SYSERR;
-      break;
-    }
-    if (EINTR == errno)
-      goto read_again;
-    switch (c)
-    {
-    case SIGUSR1:
-      /* reload internal key state, we do this in the loop */
-      break;
-    case SIGTERM:
-    case SIGINT:
-      /* terminate */
-      ret = GNUNET_OK;
-      break;
-    case SIGHUP:
-      /* restart updated binary */
-      ret = GNUNET_NO;
-      break;
-#if HAVE_DEVELOPER
-    case SIGCHLD:
-      /* running in test-mode, test finished, terminate */
-      ret = GNUNET_OK;
-      break;
-#endif
-    default:
-      /* unexpected character */
-      GNUNET_break (0);
-      break;
-    }
-  }
-  if (NULL != internal_key_state)
-  {
-    TMH_KS_release (internal_key_state);
-    internal_key_state = NULL;
-  }
-  GNUNET_SIGNAL_handler_uninstall (sigusr1);
-  GNUNET_SIGNAL_handler_uninstall (sigterm);
-  GNUNET_SIGNAL_handler_uninstall (sigint);
-  GNUNET_SIGNAL_handler_uninstall (sighup);
-  GNUNET_SIGNAL_handler_uninstall (sigchld);
-  return ret;
-}
-
-
-/**
- * Sign the message in @a purpose with the mint's signing key.
- *
- * @param purpose the message to sign
- * @param[out] pub set to the current public signing key of the mint
- * @param[out] sig signature over purpose using current signing key
- */
-void
-TMH_KS_sign (const struct GNUNET_CRYPTO_EccSignaturePurpose *purpose,
-             struct TALER_MintPublicKeyP *pub,
-             struct TALER_MintSignatureP *sig)
-
-{
-  struct TMH_KS_StateHandle *key_state;
-
-  key_state = TMH_KS_acquire ();
-  *pub = key_state->current_sign_key_issue.issue.signkey_pub;
-  GNUNET_assert (GNUNET_OK ==
-                 GNUNET_CRYPTO_eddsa_sign (&key_state->current_sign_key_issue.signkey_priv.eddsa_priv,
-                                           purpose,
-                                           &sig->eddsa_signature));
-  TMH_KS_release (key_state);
-}
-
-
-/**
- * Function to call to handle the request by sending
- * back static data from the @a rh.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_KS_handler_keys (struct TMH_RequestHandler *rh,
-                     struct MHD_Connection *connection,
-                     void **connection_cls,
-                     const char *upload_data,
-                     size_t *upload_data_size)
-{
-  struct TMH_KS_StateHandle *key_state;
-  struct MHD_Response *response;
-  int ret;
-
-  key_state = TMH_KS_acquire ();
-  response = MHD_create_response_from_buffer (strlen (key_state->keys_json),
-                                              key_state->keys_json,
-                                              MHD_RESPMEM_MUST_COPY);
-  TMH_KS_release (key_state);
-  if (NULL == response)
-  {
-    GNUNET_break (0);
-    return MHD_NO;
-  }
-  TMH_RESPONSE_add_global_headers (response);
-  (void) MHD_add_response_header (response,
-                                  "Content-Type",
-                                  rh->mime_type);
-  ret = MHD_queue_response (connection,
-                            rh->response_code,
-                            response);
-  MHD_destroy_response (response);
-  return ret;
-}
-
-
-/* end of taler-mint-httpd_keystate.c */
diff --git a/src/mint/taler-mint-httpd_keystate.h b/src/mint/taler-mint-httpd_keystate.h
deleted file mode 100644
index 0e20ef588..000000000
--- a/src/mint/taler-mint-httpd_keystate.h
+++ /dev/null
@@ -1,163 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint/taler-mint-httpd_keystate.h
- * @brief management of our private signing keys (denomination keys)
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#ifndef TALER_MINT_HTTPD_KEYSTATE_H
-#define TALER_MINT_HTTPD_KEYSTATE_H
-
-#include <gnunet/gnunet_util_lib.h>
-#include <microhttpd.h>
-#include "taler-mint-httpd.h"
-#include "taler_mintdb_lib.h"
-
-
-/**
- * Snapshot of the (coin and signing)
- * keys (including private keys) of the mint.
- */
-struct TMH_KS_StateHandle;
-
-
-/**
- * Acquire the key state of the mint.  Updates keys if necessary.
- * For every call to #TMH_KS_acquire(), a matching call
- * to #TMH_KS_release() must be made.
- *
- * @param location name of the function in which the lock is acquired
- * @return the key state
- */
-struct TMH_KS_StateHandle *
-TMH_KS_acquire_ (const char *location);
-
-
-/**
- * Release key state, free if necessary (if reference count gets to zero).
- *
- * @param location name of the function in which the lock is acquired
- * @param key_state the key state to release
- */
-void
-TMH_KS_release_ (const char *location,
-                 struct TMH_KS_StateHandle *key_state);
-
-
-/**
- * Acquire the key state of the mint.  Updates keys if necessary.
- * For every call to #TMH_KS_acquire(), a matching call
- * to #TMH_KS_release() must be made.
- *
- * @return the key state
- */
-#define TMH_KS_acquire(void) TMH_KS_acquire_(__FUNCTION__)
-
-
-/**
- * Release key state, free if necessary (if reference count gets to zero).
- *
- * @param key_state the key state to release
- */
-#define TMH_KS_release(key_state) TMH_KS_release_ (__FUNCTION__, key_state)
-
-
-/**
- * Denomination key lookups can be for signing of fresh coins
- * or to validate signatures on existing coins.  As the validity
- * periods for a key differ, the caller must specify which
- * use is relevant for the current operation.
- */
-enum TMH_KS_DenominationKeyUse {
-
-  /**
-   * The key is to be used for a /reserve/withdraw or /refresh (mint)
-   * operation.
-   */
-  TMH_KS_DKU_WITHDRAW,
-
-  /**
-   * The key is to be usd for a /deposit or /refresh (melt) operation.
-   */
-  TMH_KS_DKU_DEPOSIT
-
-};
-
-
-/**
- * Look up the issue for a denom public key.  Note that the result
- * is only valid while the @a key_state is not released!
- *
- * @param key_state state to look in
- * @param denom_pub denomination public key
- * @param use purpose for which the key is being located
- * @return the denomination key issue,
- *         or NULL if denom_pub could not be found (or is not valid at this time for the given @a use)
- */
-struct TALER_MINTDB_DenominationKeyIssueInformation *
-TMH_KS_denomination_key_lookup (const struct TMH_KS_StateHandle *key_state,
-                                const struct TALER_DenominationPublicKey *denom_pub,
-				enum TMH_KS_DenominationKeyUse use);
-
-
-/**
- * Read signals from a pipe in a loop, and reload keys from disk if
- * SIGUSR1 is received, terminate if SIGTERM/SIGINT is received, and
- * restart if SIGHUP is received.
- *
- * @return #GNUNET_SYSERR on errors,
- *         #GNUNET_OK to terminate normally
- *         #GNUNET_NO to restart an update version of the binary
- */
-int
-TMH_KS_loop (void);
-
-
-/**
- * Sign the message in @a purpose with the mint's signing
- * key.
- *
- * @param purpose the message to sign
- * @param[out] pub set to the current public signing key of the mint
- * @param[out] sig signature over purpose using current signing key
- */
-void
-TMH_KS_sign (const struct GNUNET_CRYPTO_EccSignaturePurpose *purpose,
-             struct TALER_MintPublicKeyP *pub,
-             struct TALER_MintSignatureP *sig);
-
-
-/**
- * Handle a "/keys" request
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_KS_handler_keys (struct TMH_RequestHandler *rh,
-                     struct MHD_Connection *connection,
-                     void **connection_cls,
-                     const char *upload_data,
-                     size_t *upload_data_size);
-
-
-#endif
diff --git a/src/mint/taler-mint-httpd_mhd.c b/src/mint/taler-mint-httpd_mhd.c
deleted file mode 100644
index 5719d921a..000000000
--- a/src/mint/taler-mint-httpd_mhd.c
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-
-/**
- * @file taler-mint-httpd_mhd.c
- * @brief helpers for MHD interaction; these are TALER_MINT_handler_ functions
- *        that generate simple MHD replies that do not require any real operations
- *        to be performed (error handling, static pages, etc.)
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <gnunet/gnunet_util_lib.h>
-#include <jansson.h>
-#include <microhttpd.h>
-#include <pthread.h>
-#include "taler-mint-httpd_responses.h"
-#include "taler-mint-httpd.h"
-#include "taler-mint-httpd_mhd.h"
-
-/**
- * Function to call to handle the request by sending
- * back static data from the @a rh.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_MHD_handler_static_response (struct TMH_RequestHandler *rh,
-                                    struct MHD_Connection *connection,
-                                    void **connection_cls,
-                                    const char *upload_data,
-                                    size_t *upload_data_size)
-{
-  struct MHD_Response *response;
-  int ret;
-
-  if (0 == rh->data_size)
-    rh->data_size = strlen ((const char *) rh->data);
-  response = MHD_create_response_from_buffer (rh->data_size,
-                                              (void *) rh->data,
-                                              MHD_RESPMEM_PERSISTENT);
-  if (NULL == response)
-  {
-    GNUNET_break (0);
-    return MHD_NO;
-  }
-  TMH_RESPONSE_add_global_headers (response);
-  if (NULL != rh->mime_type)
-    (void) MHD_add_response_header (response,
-                                    MHD_HTTP_HEADER_CONTENT_TYPE,
-                                    rh->mime_type);
-  ret = MHD_queue_response (connection,
-                            rh->response_code,
-                            response);
-  MHD_destroy_response (response);
-  return ret;
-}
-
-
-/**
- * Function to call to handle the request by sending
- * back a redirect to the AGPL source code.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_MHD_handler_agpl_redirect (struct TMH_RequestHandler *rh,
-                                  struct MHD_Connection *connection,
-                                  void **connection_cls,
-                                  const char *upload_data,
-                                  size_t *upload_data_size)
-{
-  const char *agpl =
-    "This server is licensed under the Affero GPL. You will now be redirected to the source code.";
-  struct MHD_Response *response;
-  int ret;
-
-  response = MHD_create_response_from_buffer (strlen (agpl),
-                                              (void *) agpl,
-                                              MHD_RESPMEM_PERSISTENT);
-  if (NULL == response)
-  {
-    GNUNET_break (0);
-    return MHD_NO;
-  }
-  TMH_RESPONSE_add_global_headers (response);
-  if (NULL != rh->mime_type)
-    (void) MHD_add_response_header (response,
-                                    MHD_HTTP_HEADER_CONTENT_TYPE,
-                                    rh->mime_type);
-  MHD_add_response_header (response,
-                           MHD_HTTP_HEADER_LOCATION,
-                           "http://www.git.taler.net/?p=mint.git");
-  ret = MHD_queue_response (connection,
-                            rh->response_code,
-                            response);
-  MHD_destroy_response (response);
-  return ret;
-}
-
-
-/**
- * Function to call to handle the request by building a JSON
- * reply with an error message from @a rh.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_MHD_handler_send_json_pack_error (struct TMH_RequestHandler *rh,
-                                         struct MHD_Connection *connection,
-                                         void **connection_cls,
-                                         const char *upload_data,
-                                         size_t *upload_data_size)
-{
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                     rh->response_code,
-                                     "{s:s}",
-                                     "error",
-                                     rh->data);
-}
-
-
-/* end of taler-mint-httpd_mhd.c */
diff --git a/src/mint/taler-mint-httpd_mhd.h b/src/mint/taler-mint-httpd_mhd.h
deleted file mode 100644
index a9f575df0..000000000
--- a/src/mint/taler-mint-httpd_mhd.h
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-
-/**
- * @file taler-mint-httpd_mhd.h
- * @brief helpers for MHD interaction, used to generate simple responses
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#ifndef TALER_MINT_HTTPD_MHD_H
-#define TALER_MINT_HTTPD_MHD_H
-#include <gnunet/gnunet_util_lib.h>
-#include <microhttpd.h>
-#include "taler-mint-httpd.h"
-
-
-/**
- * Function to call to handle the request by sending
- * back static data from the @a rh.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_MHD_handler_static_response (struct TMH_RequestHandler *rh,
-                                 struct MHD_Connection *connection,
-                                 void **connection_cls,
-                                 const char *upload_data,
-                                 size_t *upload_data_size);
-
-
-/**
- * Function to call to handle the request by sending
- * back a redirect to the AGPL source code.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_MHD_handler_agpl_redirect (struct TMH_RequestHandler *rh,
-                               struct MHD_Connection *connection,
-                               void **connection_cls,
-                               const char *upload_data,
-                               size_t *upload_data_size);
-
-
-/**
- * Function to call to handle the request by building a JSON
- * reply from varargs.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param response_code HTTP response code to use
- * @param do_cache can the response be cached? (0: no, 1: yes)
- * @param fmt format string for pack
- * @param ... varargs
- * @return MHD result code
- */
-int
-TMH_MHD_helper_send_json_pack (struct TMH_RequestHandler *rh,
-                               struct MHD_Connection *connection,
-                               void *connection_cls,
-                               int response_code,
-                               int do_cache,
-                               const char *fmt,
-                               ...);
-
-
-/**
- * Function to call to handle the request by building a JSON
- * reply with an error message from @a rh.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_MHD_handler_send_json_pack_error (struct TMH_RequestHandler *rh,
-                                      struct MHD_Connection *connection,
-                                      void **connection_cls,
-                                      const char *upload_data,
-                                      size_t *upload_data_size);
-
-
-#endif
diff --git a/src/mint/taler-mint-httpd_parsing.c b/src/mint/taler-mint-httpd_parsing.c
deleted file mode 100644
index 365202905..000000000
--- a/src/mint/taler-mint-httpd_parsing.c
+++ /dev/null
@@ -1,1137 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-
-/**
- * @file taler-mint-httpd_parsing.c
- * @brief functions to parse incoming requests (MHD arguments and JSON snippets)
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-
-#include "platform.h"
-#include <gnunet/gnunet_util_lib.h>
-#include "taler-mint-httpd_parsing.h"
-#include "taler-mint-httpd_responses.h"
-
-
-/**
- * Initial size for POST request buffer.
- */
-#define REQUEST_BUFFER_INITIAL (2*1024)
-
-/**
- * Maximum POST request size.
- */
-#define REQUEST_BUFFER_MAX (1024*1024)
-
-
-/**
- * Buffer for POST requests.
- */
-struct Buffer
-{
-  /**
-   * Allocated memory
-   */
-  char *data;
-
-  /**
-   * Number of valid bytes in buffer.
-   */
-  size_t fill;
-
-  /**
-   * Number of allocated bytes in buffer.
-   */
-  size_t alloc;
-};
-
-
-/**
- * Initialize a buffer.
- *
- * @param buf the buffer to initialize
- * @param data the initial data
- * @param data_size size of the initial data
- * @param alloc_size size of the buffer
- * @param max_size maximum size that the buffer can grow to
- * @return a GNUnet result code
- */
-static int
-buffer_init (struct Buffer *buf,
-             const void *data,
-             size_t data_size,
-             size_t alloc_size,
-             size_t max_size)
-{
-  if (data_size > max_size || alloc_size > max_size)
-    return GNUNET_SYSERR;
-  if (data_size > alloc_size)
-    alloc_size = data_size;
-  buf->data = GNUNET_malloc (alloc_size);
-  memcpy (buf->data, data, data_size);
-  return GNUNET_OK;
-}
-
-
-/**
- * Free the data in a buffer.  Does *not* free
- * the buffer object itself.
- *
- * @param buf buffer to de-initialize
- */
-static void
-buffer_deinit (struct Buffer *buf)
-{
-  GNUNET_free (buf->data);
-  buf->data = NULL;
-}
-
-
-/**
- * Append data to a buffer, growing the buffer if necessary.
- *
- * @param buf the buffer to append to
- * @param data the data to append
- * @param data_size the size of @a data
- * @param max_size maximum size that the buffer can grow to
- * @return #GNUNET_OK on success,
- *         #GNUNET_NO if the buffer can't accomodate for the new data
- */
-static int
-buffer_append (struct Buffer *buf,
-               const void *data,
-               size_t data_size,
-               size_t max_size)
-{
-  if (buf->fill + data_size > max_size)
-    return GNUNET_NO;
-  if (data_size + buf->fill > buf->alloc)
-  {
-    char *new_buf;
-    size_t new_size = buf->alloc;
-    while (new_size < buf->fill + data_size)
-      new_size += 2;
-    if (new_size > max_size)
-      return GNUNET_NO;
-    new_buf = GNUNET_malloc (new_size);
-    memcpy (new_buf, buf->data, buf->fill);
-    GNUNET_free (buf->data);
-    buf->data = new_buf;
-    buf->alloc = new_size;
-  }
-  memcpy (buf->data + buf->fill, data, data_size);
-  buf->fill += data_size;
-  return GNUNET_OK;
-}
-
-
-/**
- * Release all memory allocated for the variable-size fields in
- * the parser specification.
- *
- * @param spec specification to free
- * @param spec_len number of items in @a spec to look at
- */
-static void
-release_data (struct TMH_PARSE_FieldSpecification *spec,
-              unsigned int spec_len)
-{
-  unsigned int i;
-
-  for (i=0; i < spec_len; i++)
-  {
-    switch (spec[i].command)
-    {
-    case TMH_PARSE_JNC_FIELD:
-      GNUNET_break (0);
-      return;
-    case TMH_PARSE_JNC_INDEX:
-      GNUNET_break (0);
-      return;
-    case TMH_PARSE_JNC_RET_DATA:
-      break;
-    case TMH_PARSE_JNC_RET_DATA_VAR:
-      if (NULL != spec[i].destination)
-      {
-        GNUNET_free (* (void**) spec[i].destination);
-        *(void**) spec[i].destination = NULL;
-        *spec[i].destination_size_out = 0;
-      }
-      break;
-    case TMH_PARSE_JNC_RET_TYPED_JSON:
-      {
-        json_t *json;
-
-        json = *(json_t **) spec[i].destination;
-        if (NULL != json)
-        {
-          json_decref (json);
-          *(json_t**) spec[i].destination = NULL;
-        }
-      }
-      break;
-    case TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY:
-      {
-        struct TALER_DenominationPublicKey *pk;
-
-        pk = spec[i].destination;
-        if (NULL != pk->rsa_public_key)
-        {
-          GNUNET_CRYPTO_rsa_public_key_free (pk->rsa_public_key);
-          pk->rsa_public_key = NULL;
-        }
-      }
-      break;
-    case TMH_PARSE_JNC_RET_RSA_SIGNATURE:
-      {
-        struct TALER_DenominationSignature *sig;
-
-        sig = spec[i].destination;
-        if (NULL != sig->rsa_signature)
-        {
-          GNUNET_CRYPTO_rsa_signature_free (sig->rsa_signature);
-          sig->rsa_signature = NULL;
-        }
-      }
-      break;
-    case TMH_PARSE_JNC_RET_AMOUNT:
-      memset (spec[i].destination,
-              0,
-              sizeof (struct TALER_Amount));
-      break;
-    case TMH_PARSE_JNC_RET_TIME_ABSOLUTE:
-      break;
-    case TMH_PARSE_JNC_RET_UINT64:
-      break;
-    }
-  }
-}
-
-
-/**
- * Process a POST request containing a JSON object.  This function
- * realizes an MHD POST processor that will (incrementally) process
- * JSON data uploaded to the HTTP server.  It will store the required
- * state in the @a con_cls, which must be cleaned up using
- * #TMH_PARSE_post_cleanup_callback().
- *
- * @param connection the MHD connection
- * @param con_cls the closure (points to a `struct Buffer *`)
- * @param upload_data the POST data
- * @param upload_data_size number of bytes in @a upload_data
- * @param json the JSON object for a completed request
- * @return
- *    #GNUNET_YES if json object was parsed or at least
- *               may be parsed in the future (call again);
- *               `*json` will be NULL if we need to be called again,
- *                and non-NULL if we are done.
- *    #GNUNET_NO is request incomplete or invalid
- *               (error message was generated)
- *    #GNUNET_SYSERR on internal error
- *               (we could not even queue an error message,
- *                close HTTP session with MHD_NO)
- */
-int
-TMH_PARSE_post_json (struct MHD_Connection *connection,
-                     void **con_cls,
-                     const char *upload_data,
-                     size_t *upload_data_size,
-                     json_t **json)
-{
-  struct Buffer *r = *con_cls;
-
-  *json = NULL;
-  if (NULL == *con_cls)
-  {
-    /* We are seeing a fresh POST request. */
-    r = GNUNET_new (struct Buffer);
-    if (GNUNET_OK !=
-        buffer_init (r,
-                     upload_data,
-                     *upload_data_size,
-                     REQUEST_BUFFER_INITIAL,
-                     REQUEST_BUFFER_MAX))
-    {
-      *con_cls = NULL;
-      buffer_deinit (r);
-      GNUNET_free (r);
-      return (MHD_NO ==
-              TMH_RESPONSE_reply_internal_error (connection,
-                                                 "out of memory"))
-        ? GNUNET_SYSERR : GNUNET_NO;
-    }
-    /* everything OK, wait for more POST data */
-    *upload_data_size = 0;
-    *con_cls = r;
-    return GNUNET_YES;
-  }
-  if (0 != *upload_data_size)
-  {
-    /* We are seeing an old request with more data available. */
-
-    if (GNUNET_OK !=
-        buffer_append (r,
-                       upload_data,
-                       *upload_data_size,
-                       REQUEST_BUFFER_MAX))
-    {
-      /* Request too long */
-      *con_cls = NULL;
-      buffer_deinit (r);
-      GNUNET_free (r);
-      return (MHD_NO ==
-              TMH_RESPONSE_reply_request_too_large (connection))
-        ? GNUNET_SYSERR : GNUNET_NO;
-    }
-    /* everything OK, wait for more POST data */
-    *upload_data_size = 0;
-    return GNUNET_YES;
-  }
-
-  /* We have seen the whole request. */
-
-  *json = json_loadb (r->data,
-                      r->fill,
-                      0,
-                      NULL);
-  if (NULL == *json)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                "Failed to parse JSON request body\n");
-    return (MHD_YES ==
-            TMH_RESPONSE_reply_invalid_json (connection))
-      ? GNUNET_NO : GNUNET_SYSERR;
-  }
-  buffer_deinit (r);
-  GNUNET_free (r);
-  *con_cls = NULL;
-
-  return GNUNET_YES;
-}
-
-
-/**
- * Function called whenever we are done with a request
- * to clean up our state.
- *
- * @param con_cls value as it was left by
- *        #TMH_PARSE_post_json(), to be cleaned up
- */
-void
-TMH_PARSE_post_cleanup_callback (void *con_cls)
-{
-  struct Buffer *r = con_cls;
-
-  if (NULL != r)
-  {
-    buffer_deinit (r);
-    GNUNET_free (r);
-  }
-}
-
-
-/**
- * Extract base32crockford encoded data from request.
- *
- * Queues an error response to the connection if the parameter is missing or
- * invalid.
- *
- * @param connection the MHD connection
- * @param param_name the name of the parameter with the key
- * @param[out] out_data pointer to store the result
- * @param out_size expected size of data
- * @return
- *   #GNUNET_YES if the the argument is present
- *   #GNUNET_NO if the argument is absent or malformed
- *   #GNUNET_SYSERR on internal error (error response could not be sent)
- */
-int
-TMH_PARSE_mhd_request_arg_data (struct MHD_Connection *connection,
-                                const char *param_name,
-                                void *out_data,
-                                size_t out_size)
-{
-  const char *str;
-
-  str = MHD_lookup_connection_value (connection,
-                                     MHD_GET_ARGUMENT_KIND,
-                                     param_name);
-  if (NULL == str)
-  {
-    return (MHD_NO ==
-            TMH_RESPONSE_reply_arg_missing (connection, param_name))
-      ? GNUNET_SYSERR : GNUNET_NO;
-  }
-  if (GNUNET_OK !=
-      GNUNET_STRINGS_string_to_data (str,
-                                     strlen (str),
-                                     out_data,
-                                     out_size))
-    return (MHD_NO ==
-            TMH_RESPONSE_reply_arg_invalid (connection, param_name))
-      ? GNUNET_SYSERR : GNUNET_NO;
-  return GNUNET_OK;
-}
-
-
-/**
- * Extraxt variable-size base32crockford encoded data from request.
- *
- * Queues an error response to the connection if the parameter is missing
- * or the encoding is invalid.
- *
- * @param connection the MHD connection
- * @param param_name the name of the parameter with the key
- * @param[out] out_data pointer to allocate buffer and store the result
- * @param[out] out_size set to the size of the buffer allocated in @a out_data
- * @return
- *   #GNUNET_YES if the the argument is present
- *   #GNUNET_NO if the argument is absent or malformed
- *   #GNUNET_SYSERR on internal error (error response could not be sent)
- */
-int
-TMH_PARSE_mhd_request_var_arg_data (struct MHD_Connection *connection,
-                                    const char *param_name,
-                                    void **out_data,
-                                    size_t *out_size)
-{
-  const char *str;
-  size_t slen;
-  size_t olen;
-  void *out;
-
-  str = MHD_lookup_connection_value (connection,
-                                     MHD_GET_ARGUMENT_KIND,
-                                     param_name);
-  if (NULL == str)
-  {
-    return (MHD_NO ==
-            TMH_RESPONSE_reply_arg_missing (connection, param_name))
-      ? GNUNET_SYSERR : GNUNET_NO;
-  }
-  slen = strlen (str);
-  olen = (slen * 5) / 8;
-  out = GNUNET_malloc (olen);
-  if (GNUNET_OK !=
-      GNUNET_STRINGS_string_to_data (str,
-                                     strlen (str),
-                                     out,
-                                     olen))
-  {
-    GNUNET_free (out);
-    *out_size = 0;
-    return (MHD_NO ==
-            TMH_RESPONSE_reply_arg_invalid (connection, param_name))
-      ? GNUNET_SYSERR : GNUNET_NO;
-  }
-  *out_data = out;
-  *out_size = olen;
-  return GNUNET_OK;
-}
-
-
-/**
- * Navigate through a JSON tree.
- *
- * Sends an error response if navigation is impossible (i.e.
- * the JSON object is invalid)
- *
- * @param connection the connection to send an error response to
- * @param root the JSON node to start the navigation at.
- * @param ... navigation specification (see `enum TMH_PARSE_JsonNavigationCommand`)
- * @return
- *    #GNUNET_YES if navigation was successful
- *    #GNUNET_NO if json is malformed, error response was generated
- *    #GNUNET_SYSERR on internal error (no response was generated,
- *                       connection must be closed)
- */
-int
-TMH_PARSE_navigate_json (struct MHD_Connection *connection,
-                         const json_t *root,
-                         ...)
-{
-  va_list argp;
-  int ret;
-  json_t *path; /* what's our current path from 'root'? */
-
-  path = json_array ();
-  va_start (argp, root);
-  ret = 2; /* just not any of the valid return values */
-  while (2 == ret)
-  {
-    enum TMH_PARSE_JsonNavigationCommand command
-      = va_arg (argp,
-                enum TMH_PARSE_JsonNavigationCommand);
-
-    switch (command)
-    {
-    case TMH_PARSE_JNC_FIELD:
-      {
-        const char *fname = va_arg(argp, const char *);
-
-        json_array_append_new (path,
-                               json_string (fname));
-        root = json_object_get (root,
-                                fname);
-        if (NULL == root)
-        {
-          GNUNET_break_op (0);
-          ret = (MHD_YES ==
-                 TMH_RESPONSE_reply_json_pack (connection,
-                                               MHD_HTTP_BAD_REQUEST,
-                                               "{s:s, s:s, s:O}",
-                                               "error", "missing field in JSON",
-                                               "field", fname,
-                                               "path", path))
-            ? GNUNET_NO : GNUNET_SYSERR;
-          break;
-        }
-      }
-      break;
-
-    case TMH_PARSE_JNC_INDEX:
-      {
-        int fnum = va_arg(argp, int);
-
-        json_array_append_new (path,
-                               json_integer (fnum));
-        root = json_array_get (root,
-                               fnum);
-        if (NULL == root)
-        {
-          GNUNET_break_op (0);
-          ret = (MHD_YES ==
-                 TMH_RESPONSE_reply_json_pack (connection,
-                                               MHD_HTTP_BAD_REQUEST,
-                                               "{s:s, s:O}",
-                                               "error", "missing index in JSON",
-                                               "path", path))
-            ? GNUNET_NO : GNUNET_SYSERR;
-          break;
-        }
-      }
-      break;
-
-    case TMH_PARSE_JNC_RET_DATA:
-      {
-        void *where = va_arg (argp, void *);
-        size_t len = va_arg (argp, size_t);
-        const char *str;
-        int res;
-
-        str = json_string_value (root);
-        if (NULL == str)
-        {
-          GNUNET_break_op (0);
-          ret = (MHD_YES ==
-                 TMH_RESPONSE_reply_json_pack (connection,
-                                             MHD_HTTP_BAD_REQUEST,
-                                             "{s:s, s:O}",
-                                             "error", "string expected",
-                                             "path", path))
-            ? GNUNET_NO : GNUNET_SYSERR;
-          break;
-        }
-        res = GNUNET_STRINGS_string_to_data (str, strlen (str),
-                                             where, len);
-        if (GNUNET_OK != res)
-        {
-          GNUNET_break_op (0);
-          ret = (MHD_YES ==
-                 TMH_RESPONSE_reply_json_pack (connection,
-                                               MHD_HTTP_BAD_REQUEST,
-                                               "{s:s, s:O}",
-                                               "error", "malformed binary data in JSON",
-                                               "path", path))
-            ? GNUNET_NO : GNUNET_SYSERR;
-          break;
-        }
-        ret = GNUNET_OK;
-      }
-      break;
-
-    case TMH_PARSE_JNC_RET_DATA_VAR:
-      {
-        void **where = va_arg (argp, void **);
-        size_t *len = va_arg (argp, size_t *);
-        const char *str;
-        int res;
-
-        str = json_string_value (root);
-        if (NULL == str)
-        {
-          GNUNET_break_op (0);
-          ret = (MHD_YES ==
-                 TMH_RESPONSE_reply_internal_error (connection,
-                                                    "json_string_value() failed"))
-            ? GNUNET_NO : GNUNET_SYSERR;
-          break;
-        }
-        *len = (strlen (str) * 5) / 8;
-        if (NULL != where)
-        {
-          *where = GNUNET_malloc (*len);
-          res = GNUNET_STRINGS_string_to_data (str,
-                                               strlen (str),
-                                               *where,
-                                               *len);
-          if (GNUNET_OK != res)
-          {
-            GNUNET_break_op (0);
-            GNUNET_free (*where);
-            *where = NULL;
-            *len = 0;
-            ret = (MHD_YES ==
-                   TMH_RESPONSE_reply_json_pack (connection,
-                                                 MHD_HTTP_BAD_REQUEST,
-                                                 "{s:s, s:O}",
-                                                 "error", "malformed binary data in JSON",
-                                                 "path", path))
-              ? GNUNET_NO : GNUNET_SYSERR;
-            break;
-          }
-        }
-        ret = GNUNET_OK;
-      }
-      break;
-
-    case TMH_PARSE_JNC_RET_TYPED_JSON:
-      {
-        int typ = va_arg (argp, int);
-        const json_t **r_json = va_arg (argp, const json_t **);
-
-        if ( (NULL == root) ||
-             ( (-1 != typ) &&
-               (json_typeof (root) != typ)) )
-        {
-          GNUNET_break_op (0);
-          *r_json = NULL;
-          ret = (MHD_YES ==
-                 TMH_RESPONSE_reply_json_pack (connection,
-                                               MHD_HTTP_BAD_REQUEST,
-                                               "{s:s, s:i, s:i, s:O}",
-                                               "error", "wrong JSON field type",
-                                               "type_expected", typ,
-                                               "type_actual", json_typeof (root),
-                                               "path", path))
-            ? GNUNET_NO : GNUNET_SYSERR;
-          break;
-        }
-        *r_json = root;
-        json_incref ((json_t *) root);
-        ret = GNUNET_OK;
-      }
-      break;
-
-    case TMH_PARSE_JNC_RET_UINT64:
-      {
-        uint64_t *r_u64 = va_arg (argp, uint64_t *);
-
-        if (json_typeof (root) != JSON_INTEGER)
-        {
-          GNUNET_break_op (0);
-          ret = (MHD_YES ==
-                 TMH_RESPONSE_reply_json_pack (connection,
-                                               MHD_HTTP_BAD_REQUEST,
-                                               "{s:s, s:s, s:i, s:O}",
-                                               "error", "wrong JSON field type",
-                                               "type_expected", "integer",
-                                               "type_actual", json_typeof (root),
-                                               "path", path))
-            ? GNUNET_NO : GNUNET_SYSERR;
-          break;
-        }
-        *r_u64 = (uint64_t) json_integer_value (root);
-        ret = GNUNET_OK;
-      }
-      break;
-
-    case TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY:
-      {
-        struct TALER_DenominationPublicKey *where;
-        size_t len;
-        const char *str;
-        int res;
-        void *buf;
-
-        where = va_arg (argp,
-                        struct TALER_DenominationPublicKey *);
-        str = json_string_value (root);
-        if (NULL == str)
-        {
-          GNUNET_break_op (0);
-          ret = (MHD_YES ==
-                 TMH_RESPONSE_reply_json_pack (connection,
-                                               MHD_HTTP_BAD_REQUEST,
-                                               "{s:s, s:O}",
-                                               "error", "string expected",
-                                               "path", path))
-            ? GNUNET_NO : GNUNET_SYSERR;
-          break;
-        }
-        len = (strlen (str) * 5) / 8;
-        buf = GNUNET_malloc (len);
-        res = GNUNET_STRINGS_string_to_data (str,
-                                             strlen (str),
-                                             buf,
-                                             len);
-        if (GNUNET_OK != res)
-        {
-          GNUNET_break_op (0);
-          GNUNET_free (buf);
-          ret = (MHD_YES ==
-                 TMH_RESPONSE_reply_json_pack (connection,
-                                               MHD_HTTP_BAD_REQUEST,
-                                               "{s:s, s:O}",
-                                               "error", "malformed binary data in JSON",
-                                               "path", path))
-            ? GNUNET_NO : GNUNET_SYSERR;
-          break;
-        }
-        where->rsa_public_key = GNUNET_CRYPTO_rsa_public_key_decode (buf,
-                                                                     len);
-        GNUNET_free (buf);
-        if (NULL == where->rsa_public_key)
-        {
-          GNUNET_break_op (0);
-          ret = (MHD_YES ==
-                 TMH_RESPONSE_reply_json_pack (connection,
-                                               MHD_HTTP_BAD_REQUEST,
-                                               "{s:s, s:O}",
-                                               "error", "malformed RSA public key in JSON",
-                                               "path", path))
-            ? GNUNET_NO : GNUNET_SYSERR;
-          break;
-        }
-        ret = GNUNET_OK;
-        break;
-      }
-
-    case TMH_PARSE_JNC_RET_RSA_SIGNATURE:
-      {
-        struct TALER_DenominationSignature *where;
-        size_t len;
-        const char *str;
-        int res;
-        void *buf;
-
-        where = va_arg (argp,
-                        struct TALER_DenominationSignature *);
-        str = json_string_value (root);
-        if (NULL == str)
-        {
-          GNUNET_break_op (0);
-          ret = (MHD_YES ==
-                 TMH_RESPONSE_reply_json_pack (connection,
-                                               MHD_HTTP_BAD_REQUEST,
-                                               "{s:s, s:O}",
-                                               "error", "string expected",
-                                               "path", path))
-            ? GNUNET_NO : GNUNET_SYSERR;
-          break;
-        }
-        len = (strlen (str) * 5) / 8;
-        buf = GNUNET_malloc (len);
-        res = GNUNET_STRINGS_string_to_data (str,
-                                             strlen (str),
-                                             buf,
-                                             len);
-        if (GNUNET_OK != res)
-        {
-          GNUNET_break_op (0);
-          GNUNET_free (buf);
-          ret = (MHD_YES ==
-                 TMH_RESPONSE_reply_json_pack (connection,
-                                               MHD_HTTP_BAD_REQUEST,
-                                               "{s:s, s:O}",
-                                               "error", "malformed binary data in JSON",
-                                               "path", path))
-            ? GNUNET_NO : GNUNET_SYSERR;
-          break;
-        }
-        where->rsa_signature = GNUNET_CRYPTO_rsa_signature_decode (buf,
-                                                                   len);
-        GNUNET_free (buf);
-        if (NULL == where->rsa_signature)
-        {
-          GNUNET_break_op (0);
-          ret = (MHD_YES ==
-                 TMH_RESPONSE_reply_json_pack (connection,
-                                               MHD_HTTP_BAD_REQUEST,
-                                               "{s:s, s:O}",
-                                               "error", "malformed RSA signature in JSON",
-                                               "path", path))
-            ? GNUNET_NO : GNUNET_SYSERR;
-          break;
-        }
-        ret = GNUNET_OK;
-        break;
-      }
-
-    case TMH_PARSE_JNC_RET_AMOUNT:
-      {
-        struct TALER_Amount *where = va_arg (argp, void *);
-
-        if (GNUNET_OK !=
-            TALER_json_to_amount ((json_t *) root,
-                                  where))
-        {
-          GNUNET_break_op (0);
-          ret = (MHD_YES !=
-                 TMH_RESPONSE_reply_json_pack (connection,
-                                               MHD_HTTP_BAD_REQUEST,
-                                               "{s:s, s:O}",
-                                               "error", "Bad format",
-                                               "path", path))
-            ? GNUNET_SYSERR : GNUNET_NO;
-          break;
-        }
-        if (0 != strcmp (where->currency,
-                         TMH_mint_currency_string))
-        {
-          GNUNET_break_op (0);
-          ret = (MHD_YES !=
-                 TMH_RESPONSE_reply_json_pack (connection,
-                                               MHD_HTTP_BAD_REQUEST,
-                                               "{s:s, s:O, s:s}",
-                                               "error", "Currency not supported",
-                                               "path", path,
-                                               "currency", where->currency))
-            ? GNUNET_SYSERR : GNUNET_NO;
-          memset (where, 0, sizeof (struct TALER_Amount));
-          break;
-        }
-        ret = GNUNET_OK;
-        break;
-      }
-
-    case TMH_PARSE_JNC_RET_TIME_ABSOLUTE:
-      {
-        struct GNUNET_TIME_Absolute *where = va_arg (argp, void *);
-
-        if (GNUNET_OK !=
-            TALER_json_to_abs ((json_t *) root,
-                               where))
-        {
-          GNUNET_break_op (0);
-          ret = (MHD_YES !=
-                 TMH_RESPONSE_reply_json_pack (connection,
-                                               MHD_HTTP_BAD_REQUEST,
-                                               "{s:s, s:s, s:O}",
-                                               "error", "Bad format",
-                                               "hint", "expected absolute time",
-                                               "path", path))
-            ? GNUNET_SYSERR : GNUNET_NO;
-          break;
-        }
-        ret = GNUNET_OK;
-        break;
-      }
-
-    default:
-      GNUNET_break (0);
-      ret = (MHD_YES ==
-             TMH_RESPONSE_reply_internal_error (connection,
-                                                "unhandled value in switch"))
-        ? GNUNET_NO : GNUNET_SYSERR;
-      break;
-    }
-  }
-  va_end (argp);
-  json_decref (path);
-  return ret;
-}
-
-
-/**
- * Parse JSON object into components based on the given field
- * specification.
- *
- * @param connection the connection to send an error response to
- * @param root the JSON node to start the navigation at.
- * @param spec field specification for the parser
- * @return
- *    #GNUNET_YES if navigation was successful (caller is responsible
- *                for freeing allocated variable-size data using
- *                #TMH_PARSE_release_data() when done)
- *    #GNUNET_NO if json is malformed, error response was generated
- *    #GNUNET_SYSERR on internal error
- */
-int
-TMH_PARSE_json_data (struct MHD_Connection *connection,
-                     const json_t *root,
-                     struct TMH_PARSE_FieldSpecification *spec)
-{
-  unsigned int i;
-  int ret;
-
-  ret = GNUNET_YES;
-  for (i=0; NULL != spec[i].field_name; i++)
-  {
-    if (GNUNET_YES != ret)
-      break;
-    switch (spec[i].command)
-    {
-    case TMH_PARSE_JNC_FIELD:
-      GNUNET_break (0);
-      return GNUNET_SYSERR;
-    case TMH_PARSE_JNC_INDEX:
-      GNUNET_break (0);
-      return GNUNET_SYSERR;
-    case TMH_PARSE_JNC_RET_DATA:
-      ret = TMH_PARSE_navigate_json (connection,
-                                     root,
-                                     TMH_PARSE_JNC_FIELD,
-                                     spec[i].field_name,
-                                     TMH_PARSE_JNC_RET_DATA,
-                                     spec[i].destination,
-                                     spec[i].destination_size_in);
-      break;
-    case TMH_PARSE_JNC_RET_DATA_VAR:
-      ret = TMH_PARSE_navigate_json (connection,
-                                     root,
-                                     TMH_PARSE_JNC_FIELD,
-                                     spec[i].field_name,
-                                     TMH_PARSE_JNC_RET_DATA_VAR,
-                                     (void **) spec[i].destination,
-                                     spec[i].destination_size_out);
-      break;
-    case TMH_PARSE_JNC_RET_TYPED_JSON:
-      ret = TMH_PARSE_navigate_json (connection,
-                                     root,
-                                     TMH_PARSE_JNC_FIELD,
-                                     spec[i].field_name,
-                                     TMH_PARSE_JNC_RET_TYPED_JSON,
-                                     spec[i].type,
-                                     spec[i].destination);
-      break;
-    case TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY:
-      ret = TMH_PARSE_navigate_json (connection,
-                                     root,
-                                     TMH_PARSE_JNC_FIELD,
-                                     spec[i].field_name,
-                                     TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY,
-                                     spec[i].destination);
-      break;
-    case TMH_PARSE_JNC_RET_RSA_SIGNATURE:
-      ret = TMH_PARSE_navigate_json (connection,
-                                     root,
-                                     TMH_PARSE_JNC_FIELD,
-                                     spec[i].field_name,
-                                     TMH_PARSE_JNC_RET_RSA_SIGNATURE,
-                                     spec[i].destination);
-      break;
-    case TMH_PARSE_JNC_RET_AMOUNT:
-      GNUNET_assert (sizeof (struct TALER_Amount) ==
-                     spec[i].destination_size_in);
-      ret = TMH_PARSE_navigate_json (connection,
-                                     root,
-                                     TMH_PARSE_JNC_FIELD,
-                                     spec[i].field_name,
-                                     TMH_PARSE_JNC_RET_AMOUNT,
-                                     spec[i].destination);
-      break;
-    case TMH_PARSE_JNC_RET_TIME_ABSOLUTE:
-      GNUNET_assert (sizeof (struct GNUNET_TIME_Absolute) ==
-                     spec[i].destination_size_in);
-      ret = TMH_PARSE_navigate_json (connection,
-                                     root,
-                                     TMH_PARSE_JNC_FIELD,
-                                     spec[i].field_name,
-                                     TMH_PARSE_JNC_RET_TIME_ABSOLUTE,
-                                     spec[i].destination);
-      break;
-    case TMH_PARSE_JNC_RET_UINT64:
-      GNUNET_assert (sizeof (uint64_t) ==
-                     spec[i].destination_size_in);
-      ret = TMH_PARSE_navigate_json (connection,
-                                     root,
-                                     TMH_PARSE_JNC_FIELD,
-                                     spec[i].field_name,
-                                     TMH_PARSE_JNC_RET_UINT64,
-                                     spec[i].destination);
-      break;
-    }
-  }
-  if (GNUNET_YES != ret)
-    release_data (spec,
-                  i - 1);
-  return ret;
-}
-
-
-/**
- * Release all memory allocated for the variable-size fields in
- * the parser specification.
- *
- * @param spec specification to free
- */
-void
-TMH_PARSE_release_data (struct TMH_PARSE_FieldSpecification *spec)
-{
-  unsigned int i;
-
-  for (i=0; NULL != spec[i].field_name; i++) ;
-  release_data (spec, i);
-}
-
-
-/**
- * Generate line in parser specification for 64-bit integer
- * given as an integer in JSON.
- *
- * @param field name of the field
- * @param[out] u64 integer to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_uint64 (const char *field,
-                         uint64_t *u64)
-{
-  struct TMH_PARSE_FieldSpecification ret =
-    { field, (void *) u64, sizeof (uint64_t), NULL, TMH_PARSE_JNC_RET_UINT64, 0 };
-  return ret;
-}
-
-
-/**
- * Generate line in parser specification for JSON object value.
- *
- * @param field name of the field
- * @param[out] jsonp address of pointer to JSON to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_object (const char *field,
-                         json_t **jsonp)
-{
-  struct TMH_PARSE_FieldSpecification ret =
-    { field, jsonp, 0, NULL, TMH_PARSE_JNC_RET_TYPED_JSON, JSON_OBJECT };
-  *jsonp = NULL;
-  return ret;
-}
-
-
-/**
- * Generate line in parser specification for JSON array value.
- *
- * @param field name of the field
- * @param[out] jsonp address of JSON pointer to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_array (const char *field,
-                        json_t **jsonp)
-{
-  struct TMH_PARSE_FieldSpecification ret =
-    { field, jsonp, 0, NULL, TMH_PARSE_JNC_RET_TYPED_JSON, JSON_ARRAY };
-  *jsonp = NULL;
-  return ret;
-}
-
-
-/**
- * Generate line in parser specification for an absolute time.
- *
- * @param field name of the field
- * @param[out] atime time to initialize
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_time_abs (const char *field,
-                           struct GNUNET_TIME_Absolute *atime)
-{
-  struct TMH_PARSE_FieldSpecification ret =
-    { field, atime, sizeof(struct GNUNET_TIME_Absolute), NULL, TMH_PARSE_JNC_RET_TIME_ABSOLUTE, 0 };
-  return ret;
-}
-
-
-/**
- * Generate line in parser specification for RSA public key.
- *
- * @param field name of the field
- * @param[out] pk key to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_denomination_public_key (const char *field,
-                                          struct TALER_DenominationPublicKey *pk)
-{
-  struct TMH_PARSE_FieldSpecification ret =
-    { field, pk, 0, NULL, TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY, 0 };
-  pk->rsa_public_key = NULL;
-  return ret;
-}
-
-
-/**
- * Generate line in parser specification for RSA public key.
- *
- * @param field name of the field
- * @param sig the signature to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_denomination_signature (const char *field,
-                                         struct TALER_DenominationSignature *sig)
-{
-  struct TMH_PARSE_FieldSpecification ret =
-    { field, sig, 0, NULL, TMH_PARSE_JNC_RET_RSA_SIGNATURE, 0 };
-  sig->rsa_signature = NULL;
-  return ret;
-}
-
-
-/**
- * Generate line in parser specification for an amount.
- *
- * @param field name of the field
- * @param amount a `struct TALER_Amount *` to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_amount (const char *field,
-                         struct TALER_Amount *amount)
-{
-  struct TMH_PARSE_FieldSpecification ret =
-    { field, amount, sizeof(struct TALER_Amount), NULL, TMH_PARSE_JNC_RET_AMOUNT, 0 };
-  memset (amount, 0, sizeof (struct TALER_Amount));
-  return ret;
-}
-
-
-/**
- * Generate line in parser specification for variable-size value.
- *
- * @param field name of the field
- * @param[out] ptr pointer to initialize
- * @param[out] ptr_size size to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_variable (const char *field,
-                           void **ptr,
-                           size_t *ptr_size)
-{
-  struct TMH_PARSE_FieldSpecification ret =
-    { field, ptr, 0, ptr_size, TMH_PARSE_JNC_RET_DATA_VAR, 0 };
-  *ptr = NULL;
-  return ret;
-}
-
-/* end of taler-mint-httpd_parsing.c */
diff --git a/src/mint/taler-mint-httpd_parsing.h b/src/mint/taler-mint-httpd_parsing.h
deleted file mode 100644
index a2cf4c469..000000000
--- a/src/mint/taler-mint-httpd_parsing.h
+++ /dev/null
@@ -1,408 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_parsing.h
- * @brief functions to parse incoming requests
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#ifndef TALER_MINT_HTTPD_PARSING_H
-#define TALER_MINT_HTTPD_PARSING_H
-
-#include <microhttpd.h>
-#include <jansson.h>
-#include "taler_util.h"
-
-
-/**
- * Process a POST request containing a JSON object.  This
- * function realizes an MHD POST processor that will
- * (incrementally) process JSON data uploaded to the HTTP
- * server.  It will store the required state in the
- * "connection_cls", which must be cleaned up using
- * #TMH_PARSE_post_cleanup_callback().
- *
- * @param connection the MHD connection
- * @param con_cls the closure (points to a `struct Buffer *`)
- * @param upload_data the POST data
- * @param upload_data_size number of bytes in @a upload_data
- * @param json the JSON object for a completed request
- * @return
- *    #GNUNET_YES if json object was parsed or at least
- *               may be parsed in the future (call again);
- *               `*json` will be NULL if we need to be called again,
- *                and non-NULL if we are done.
- *    #GNUNET_NO is request incomplete or invalid
- *               (error message was generated)
- *    #GNUNET_SYSERR on internal error
- *               (we could not even queue an error message,
- *                close HTTP session with MHD_NO)
- */
-int
-TMH_PARSE_post_json (struct MHD_Connection *connection,
-                     void **con_cls,
-                     const char *upload_data,
-                     size_t *upload_data_size,
-                     json_t **json);
-
-
-/**
- * Function called whenever we are done with a request
- * to clean up our state.
- *
- * @param con_cls value as it was left by
- *        #TMH_PARSE_post_json(), to be cleaned up
- */
-void
-TMH_PARSE_post_cleanup_callback (void *con_cls);
-
-
-/**
- * Constants for JSON navigation description.
- */
-enum TMH_PARSE_JsonNavigationCommand
-{
-  /**
-   * Access a field.
-   * Param: const char *
-   */
-  TMH_PARSE_JNC_FIELD,
-
-  /**
-   * Access an array index.
-   * Param: int
-   */
-  TMH_PARSE_JNC_INDEX,
-
-  /**
-   * Return base32crockford encoded data of
-   * constant size.
-   * Params: (void *, size_t)
-   */
-  TMH_PARSE_JNC_RET_DATA,
-
-  /**
-   * Return base32crockford encoded data of
-   * variable size.
-   * Params: (void **, size_t *)
-   */
-  TMH_PARSE_JNC_RET_DATA_VAR,
-
-  /**
-   * Return a json object, which must be
-   * of the given type (JSON_* type constants,
-   * or -1 for any type).
-   * Params: (int, json_t **)
-   */
-  TMH_PARSE_JNC_RET_TYPED_JSON,
-
-  /**
-   * Return a `struct GNUNET_CRYPTO_rsa_PublicKey` which was
-   * encoded as variable-size base32crockford encoded data.
-   */
-  TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY,
-
-  /**
-   * Return a `struct GNUNET_CRYPTO_rsa_Signature` which was
-   * encoded as variable-size base32crockford encoded data.
-   */
-  TMH_PARSE_JNC_RET_RSA_SIGNATURE,
-
-  /**
-   * Return a `struct TALER_Amount` which was
-   * encoded within its own json object.
-   */
-  TMH_PARSE_JNC_RET_AMOUNT,
-
-  /**
-   * Return a `struct GNUNET_TIME_Absolute` which was
-   * encoded within its own json object.
-   * Param: struct GNUNET_TIME_Absolute *
-   */
-  TMH_PARSE_JNC_RET_TIME_ABSOLUTE,
-
-  /**
-   * Return a `uint64_t` which was
-   * encoded as a JSON integer.
-   * Param: uint64_t *
-   */
-  TMH_PARSE_JNC_RET_UINT64
-
-};
-
-
-/**
- * Navigate through a JSON tree.
- *
- * Sends an error response if navigation is impossible (i.e.
- * the JSON object is invalid)
- *
- * @param connection the connection to send an error response to
- * @param root the JSON node to start the navigation at.
- * @param ... navigation specification (see `enum TMH_PARSE_JsonNavigationCommand`)
- * @return
- *    #GNUNET_YES if navigation was successful
- *    #GNUNET_NO if json is malformed, error response was generated
- *    #GNUNET_SYSERR on internal error
- */
-int
-TMH_PARSE_navigate_json (struct MHD_Connection *connection,
-                         const json_t *root,
-                         ...);
-
-
-/**
- * @brief Specification for how to parse a JSON field.
- */
-struct TMH_PARSE_FieldSpecification
-{
-  /**
-   * Name of the field.  NULL only to terminate array.
-   */
-  const char *field_name;
-
-  /**
-   * Where to store the result.  Must have exactly
-   * @e destination_size bytes, except if @e destination_size is zero.
-   * NULL to skip assignment (but check presence of the value).
-   */
-  void *destination;
-
-  /**
-   * How big should the result be, 0 for variable size.  In
-   * this case, @e destination must be a "void **", pointing
-   * to a location that is currently NULL and is to be allocated.
-   */
-  size_t destination_size_in;
-
-  /**
-   * @e destination_size_out will then be set to the size of the
-   * value that was stored in @e destination (useful for
-   * variable-size allocations).
-   */
-  size_t *destination_size_out;
-
-  /**
-   * Navigation command to use to extract the value.  Note that
-   * #TMH_PARSE_JNC_RET_DATA or #TMH_PARSE_JNC_RET_DATA_VAR must be used for @e
-   * destination_size_in and @e destination_size_out to have a
-   * meaning.  #TMH_PARSE_JNC_FIELD and #TMH_PARSE_JNC_INDEX must not be used here!
-   */
-  enum TMH_PARSE_JsonNavigationCommand command;
-
-  /**
-   * JSON type to use, only meaningful in connection with a @e command
-   * value of #TMH_PARSE_JNC_RET_TYPED_JSON.  Typical values are
-   * #JSON_ARRAY and #JSON_OBJECT.
-   */
-  int type;
-
-};
-
-
-/**
- * Parse JSON object into components based on the given field
- * specification.
- *
- * @param connection the connection to send an error response to
- * @param root the JSON node to start the navigation at.
- * @param spec field specification for the parser
- * @return
- *    #GNUNET_YES if navigation was successful (caller is responsible
- *                for freeing allocated variable-size data using
- *                #TMH_PARSE_release_data() when done)
- *    #GNUNET_NO if json is malformed, error response was generated
- *    #GNUNET_SYSERR on internal error
- */
-int
-TMH_PARSE_json_data (struct MHD_Connection *connection,
-                     const json_t *root,
-                     struct TMH_PARSE_FieldSpecification *spec);
-
-
-/**
- * Release all memory allocated for the variable-size fields in
- * the parser specification.
- *
- * @param spec specification to free
- */
-void
-TMH_PARSE_release_data (struct TMH_PARSE_FieldSpecification *spec);
-
-
-/**
- * Generate line in parser specification for fixed-size value.
- *
- * @param field name of the field
- * @param value where to store the value
- */
-#define TMH_PARSE_member_fixed(field,value) { field, value, sizeof (*value), NULL, TMH_PARSE_JNC_RET_DATA, 0 }
-
-
-/**
- * Generate line in parser specification for variable-size value.
- *
- * @param field name of the field
- * @param[out] ptr pointer to initialize
- * @param[out] ptr_size size to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_variable (const char *field,
-                           void **ptr,
-                           size_t *ptr_size);
-
-
-/**
- * Generate line in parser specification for 64-bit integer
- * given as an integer in JSON.
- *
- * @param field name of the field
- * @param[out] u64 integer to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_uint64 (const char *field,
-                         uint64_t *u64);
-
-
-/**
- * Generate line in parser specification for JSON array value.
- *
- * @param field name of the field
- * @param[out] jsonp address of JSON pointer to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_array (const char *field,
-                        json_t **jsonp);
-
-
-/**
- * Generate line in parser specification for JSON object value.
- *
- * @param field name of the field
- * @param[out] jsonp address of pointer to JSON to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_object (const char *field,
-                         json_t **jsonp);
-
-
-/**
- * Generate line in parser specification for RSA public key.
- *
- * @param field name of the field
- * @param[out] pk key to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_denomination_public_key (const char *field,
-                                          struct TALER_DenominationPublicKey *pk);
-
-
-/**
- * Generate line in parser specification for RSA public key.
- *
- * @param field name of the field
- * @param sig the signature to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_denomination_signature (const char *field,
-                                         struct TALER_DenominationSignature *sig);
-
-
-/**
- * Generate line in parser specification for an amount.
- *
- * @param field name of the field
- * @param[out] amount a `struct TALER_Amount *` to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_amount (const char *field,
-                         struct TALER_Amount *amount);
-
-
-/**
- * Generate line in parser specification for an absolute time.
- *
- * @param field name of the field
- * @param[out] atime time to initialize
- * @return corresponding field spec
- */
-struct TMH_PARSE_FieldSpecification
-TMH_PARSE_member_time_abs (const char *field,
-                           struct GNUNET_TIME_Absolute *atime);
-
-
-
-/**
- * Generate line in parser specification indicating the end of the spec.
- */
-#define TMH_PARSE_MEMBER_END { NULL, NULL, 0, NULL, TMH_PARSE_JNC_FIELD, 0 }
-
-
-/**
- * Extraxt fixed-size base32crockford encoded data from request.
- *
- * Queues an error response to the connection if the parameter is missing or
- * invalid.
- *
- * @param connection the MHD connection
- * @param param_name the name of the parameter with the key
- * @param[out] out_data pointer to store the result
- * @param out_size expected size of @a out_data
- * @return
- *   #GNUNET_YES if the the argument is present
- *   #GNUNET_NO if the argument is absent or malformed
- *   #GNUNET_SYSERR on internal error (error response could not be sent)
- */
-int
-TMH_PARSE_mhd_request_arg_data (struct MHD_Connection *connection,
-                                const char *param_name,
-                                void *out_data,
-                                size_t out_size);
-
-
-/**
- * Extraxt variable-size base32crockford encoded data from request.
- *
- * Queues an error response to the connection if the parameter is missing
- * or the encoding is invalid.
- *
- * @param connection the MHD connection
- * @param param_name the name of the parameter with the key
- * @param[out] out_data pointer to allocate buffer and store the result
- * @param[out] out_size set to the size of the buffer allocated in @a out_data
- * @return
- *   #GNUNET_YES if the the argument is present
- *   #GNUNET_NO if the argument is absent or malformed
- *   #GNUNET_SYSERR on internal error (error response could not be sent)
- */
-int
-TMH_PARSE_mhd_request_var_arg_data (struct MHD_Connection *connection,
-                                    const char *param_name,
-                                    void **out_data,
-                                    size_t *out_size);
-
-
-
-
-#endif /* TALER_MINT_HTTPD_PARSING_H */
diff --git a/src/mint/taler-mint-httpd_refresh.c b/src/mint/taler-mint-httpd_refresh.c
deleted file mode 100644
index 4d89fe892..000000000
--- a/src/mint/taler-mint-httpd_refresh.c
+++ /dev/null
@@ -1,911 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_refresh.c
- * @brief Handle /refresh/ requests
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <gnunet/gnunet_util_lib.h>
-#include <jansson.h>
-#include <microhttpd.h>
-#include "taler-mint-httpd_parsing.h"
-#include "taler-mint-httpd_mhd.h"
-#include "taler-mint-httpd_refresh.h"
-#include "taler-mint-httpd_responses.h"
-#include "taler-mint-httpd_keystate.h"
-
-
-/**
- * Handle a "/refresh/melt" request after the main JSON parsing has happened.
- * We now need to validate the coins being melted and the session signature
- * and then hand things of to execute the melt operation.
- *
- * @param connection the MHD connection to handle
- * @param num_new_denoms number of coins to be created, size of y-dimension of @a commit_link array
- * @param denom_pubs array of @a num_new_denoms keys
- * @param coin_count number of coins to be melted, size of y-dimension of @a commit_coin array
- * @param coin_melt_details array with @a coin_count entries with melting details
- * @param session_hash hash over the data that the client commits to
- * @param commit_coin 2d array of coin commitments (what the mint is to sign
- *                    once the "/refres/reveal" of cut and choose is done)
- * @param commit_link 2d array of coin link commitments (what the mint is
- *                    to return via "/refresh/link" to enable linkage in the
- *                    future)
- * @return MHD result code
- */
-static int
-handle_refresh_melt_binary (struct MHD_Connection *connection,
-                            unsigned int num_new_denoms,
-                            const struct TALER_DenominationPublicKey *denom_pubs,
-                            unsigned int coin_count,
-                            const struct TMH_DB_MeltDetails *coin_melt_details,
-                            const struct GNUNET_HashCode *session_hash,
-                            struct TALER_MINTDB_RefreshCommitCoin *const* commit_coin,
-                            struct TALER_RefreshCommitLinkP *const* commit_link)
-{
-  unsigned int i;
-  struct TMH_KS_StateHandle *key_state;
-  struct TALER_MINTDB_DenominationKeyIssueInformation *dk;
-  struct TALER_MINTDB_DenominationKeyInformationP *dki;
-  struct TALER_Amount cost;
-  struct TALER_Amount total_cost;
-  struct TALER_Amount melt;
-  struct TALER_Amount value;
-  struct TALER_Amount fee_withdraw;
-  struct TALER_Amount fee_melt;
-  struct TALER_Amount total_melt;
-
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_amount_get_zero (TMH_mint_currency_string,
-                                        &total_cost));
-  key_state = TMH_KS_acquire ();
-  for (i=0;i<num_new_denoms;i++)
-  {
-    dk = TMH_KS_denomination_key_lookup (key_state,
-                                         &denom_pubs[i],
-                                         TMH_KS_DKU_WITHDRAW);
-    if (NULL == dk)
-    {
-      GNUNET_break_op (0);
-      TMH_KS_release (key_state);
-      return TMH_RESPONSE_reply_arg_invalid (connection,
-                                             "new_denoms");
-    }
-    dki = &dk->issue;
-    TALER_amount_ntoh (&value,
-                       &dki->properties.value);
-    TALER_amount_ntoh (&fee_withdraw,
-                       &dki->properties.fee_withdraw);
-    if ( (GNUNET_OK !=
-          TALER_amount_add (&cost,
-                            &value,
-                            &fee_withdraw)) ||
-         (GNUNET_OK !=
-          TALER_amount_add (&total_cost,
-                            &cost,
-                            &total_cost)) )
-    {
-      GNUNET_break_op (0);
-      TMH_KS_release (key_state);
-      return TMH_RESPONSE_reply_internal_error (connection,
-                                                "cost calculation failure");
-    }
-  }
-
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_amount_get_zero (TMH_mint_currency_string,
-                                        &total_melt));
-  for (i=0;i<coin_count;i++)
-  {
-    /* calculate contribution of the i-th melt by subtracting
-       the fee; add the rest to the total_melt value */
-    dk = TMH_KS_denomination_key_lookup (key_state,
-                                         &coin_melt_details[i].coin_info.denom_pub,
-                                         TMH_KS_DKU_DEPOSIT);
-    if (NULL == dk)
-    {
-      GNUNET_break (0);
-      return TMH_RESPONSE_reply_arg_invalid (connection,
-                                             "denom_pub");
-    }
-    dki = &dk->issue;
-    TALER_amount_ntoh (&fee_melt,
-                       &dki->properties.fee_refresh);
-    if (GNUNET_OK !=
-        TALER_amount_subtract (&melt,
-                               &coin_melt_details->melt_amount_with_fee,
-                               &fee_melt))
-    {
-      GNUNET_break_op (0);
-      TMH_KS_release (key_state);
-      return TMH_RESPONSE_reply_external_error (connection,
-                                                "Melt contribution below melting fee");
-    }
-    if (GNUNET_OK !=
-        TALER_amount_add (&total_melt,
-                          &melt,
-                          &total_melt))
-    {
-      GNUNET_break_op (0);
-      TMH_KS_release (key_state);
-      return TMH_RESPONSE_reply_internal_error (connection,
-                                                "balance calculation failure");
-    }
-  }
-  TMH_KS_release (key_state);
-  if (0 !=
-      TALER_amount_cmp (&total_cost,
-                        &total_melt))
-  {
-    GNUNET_break_op (0);
-    /* We require total value of coins being melted and
-       total value of coins being generated to match! */
-    return TMH_RESPONSE_reply_json_pack (connection,
-                                         MHD_HTTP_BAD_REQUEST,
-                                         "{s:s}",
-                                         "error", "value mismatch");
-  }
-  return TMH_DB_execute_refresh_melt (connection,
-                                      session_hash,
-                                      num_new_denoms,
-                                      denom_pubs,
-                                      coin_count,
-                                      coin_melt_details,
-                                      commit_coin,
-                                      commit_link);
-}
-
-
-/**
- * Extract public coin information from a JSON object.
- *
- * @param connection the connection to send error responses to
- * @param coin_info the JSON object to extract the coin info from
- * @param[out] r_melt_detail set to details about the coin's melting permission (if valid)
- * @return #GNUNET_YES if coin public info in JSON was valid
- *         #GNUNET_NO JSON was invalid, response was generated
- *         #GNUNET_SYSERR on internal error
- */
-static int
-get_coin_public_info (struct MHD_Connection *connection,
-                      json_t *coin_info,
-                      struct TMH_DB_MeltDetails *r_melt_detail)
-{
-  int ret;
-  struct TALER_CoinSpendSignatureP melt_sig;
-  struct TALER_DenominationSignature sig;
-  struct TALER_DenominationPublicKey pk;
-  struct TALER_Amount amount;
-  struct TMH_PARSE_FieldSpecification spec[] = {
-    TMH_PARSE_member_fixed ("coin_pub", &r_melt_detail->coin_info.coin_pub),
-    TMH_PARSE_member_denomination_signature ("denom_sig", &sig),
-    TMH_PARSE_member_denomination_public_key ("denom_pub", &pk),
-    TMH_PARSE_member_fixed ("confirm_sig", &melt_sig),
-    TMH_PARSE_member_amount ("value_with_fee", &amount),
-    TMH_PARSE_MEMBER_END
-  };
-
-  ret = TMH_PARSE_json_data (connection,
-                             coin_info,
-                             spec);
-  if (GNUNET_OK != ret)
-  {
-    GNUNET_break_op (0);
-    return ret;
-  }
-  /* check mint signature on the coin */
-  r_melt_detail->coin_info.denom_sig = sig;
-  r_melt_detail->coin_info.denom_pub = pk;
-  if (GNUNET_OK !=
-      TALER_test_coin_valid (&r_melt_detail->coin_info))
-  {
-    GNUNET_break_op (0);
-    TMH_PARSE_release_data (spec);
-    r_melt_detail->coin_info.denom_sig.rsa_signature = NULL;
-    r_melt_detail->coin_info.denom_pub.rsa_public_key = NULL;
-    return (MHD_YES ==
-            TMH_RESPONSE_reply_signature_invalid (connection,
-                                                  "denom_sig"))
-      ? GNUNET_NO : GNUNET_SYSERR;
-  }
-  r_melt_detail->melt_sig = melt_sig;
-  r_melt_detail->melt_amount_with_fee = amount;
-  return GNUNET_OK;
-}
-
-
-/**
- * Verify that the signature shows that this coin is to be melted into
- * the given @a session_hash melting session, and that this is a valid
- * coin (we know the denomination key and the signature on it is
- * valid).  Essentially, this does all of the per-coin checks that can
- * be done before the transaction starts.
- *
- * @param connection the connection to send error responses to
- * @param session_hash hash over refresh session the coin is melted into
- * @param[in,out] melt_detail details about the coin's melting permission,
- *                            the `melt_fee` is updated
- * @return #GNUNET_YES if coin public info in JSON was valid
- *         #GNUNET_NO JSON was invalid, response was generated
- *         #GNUNET_SYSERR on internal error
- */
-static int
-verify_coin_public_info (struct MHD_Connection *connection,
-                         const struct GNUNET_HashCode *session_hash,
-                         struct TMH_DB_MeltDetails *melt_detail)
-{
-  struct TALER_RefreshMeltCoinAffirmationPS body;
-  struct TMH_KS_StateHandle *key_state;
-  struct TALER_MINTDB_DenominationKeyIssueInformation *dki;
-  struct TALER_Amount fee_refresh;
-
-  key_state = TMH_KS_acquire ();
-  dki = TMH_KS_denomination_key_lookup (key_state,
-                                        &melt_detail->coin_info.denom_pub,
-					TMH_KS_DKU_DEPOSIT);
-  if (NULL == dki)
-  {
-    TMH_KS_release (key_state);
-    TALER_LOG_WARNING ("Unknown denomination key in /refresh/melt request\n");
-    return TMH_RESPONSE_reply_arg_unknown (connection,
-                                           "denom_pub");
-  }
-  TALER_amount_ntoh (&fee_refresh,
-                     &dki->issue.properties.fee_refresh);
-  melt_detail->melt_fee = fee_refresh;
-  body.purpose.size = htonl (sizeof (struct TALER_RefreshMeltCoinAffirmationPS));
-  body.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_MELT);
-  body.session_hash = *session_hash;
-  TALER_amount_hton (&body.amount_with_fee,
-                     &melt_detail->melt_amount_with_fee);
-  TALER_amount_hton (&body.melt_fee,
-                     &fee_refresh);
-  body.coin_pub = melt_detail->coin_info.coin_pub;
-  if (TALER_amount_cmp (&fee_refresh,
-                        &melt_detail->melt_amount_with_fee) > 0)
-  {
-    GNUNET_break_op (0);
-    TMH_KS_release (key_state);
-    return (MHD_YES ==
-            TMH_RESPONSE_reply_external_error (connection,
-                                               "melt amount smaller than melting fee"))
-      ? GNUNET_NO : GNUNET_SYSERR;
-  }
-
-  TMH_KS_release (key_state);
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_MELT,
-                                  &body.purpose,
-                                  &melt_detail->melt_sig.eddsa_signature,
-                                  &melt_detail->coin_info.coin_pub.eddsa_pub))
-  {
-    GNUNET_break_op (0);
-    if (MHD_YES !=
-        TMH_RESPONSE_reply_signature_invalid (connection,
-                                              "confirm_sig"))
-      return GNUNET_SYSERR;
-    return GNUNET_NO;
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Release memory from the @a commit_coin array.
- *
- * @param commit_coin array to release
- * @param kappa size of 1st dimension
- * @param num_new_coins size of 2nd dimension
- */
-static void
-free_commit_coins (struct TALER_MINTDB_RefreshCommitCoin **commit_coin,
-                   unsigned int kappa,
-                   unsigned int num_new_coins)
-{
-  unsigned int i;
-  unsigned int j;
-
-  for (i=0;i<kappa;i++)
-  {
-    if (NULL == commit_coin[i])
-      break;
-    for (j=0;j<num_new_coins;j++)
-    {
-      GNUNET_free_non_null (commit_coin[i][j].coin_ev);
-      GNUNET_free_non_null (commit_coin[i][j].refresh_link);
-    }
-    GNUNET_free (commit_coin[i]);
-  }
-}
-
-
-/**
- * Release memory from the @a commit_link array.
- *
- * @param commit_link array to release
- * @param kappa size of 1st dimension
- * @param num_old_coins size of 2nd dimension
- */
-static void
-free_commit_links (struct TALER_RefreshCommitLinkP **commit_link,
-                   unsigned int kappa,
-                   unsigned int num_old_coins)
-{
-  unsigned int i;
-
-  for (i=0;i<kappa;i++)
-  {
-    if (NULL == commit_link[i])
-      break;
-    GNUNET_free (commit_link[i]);
-  }
-}
-
-
-/**
- * Handle a "/refresh/melt" request after the first parsing has happened.
- * We now need to validate the coins being melted and the session signature
- * and then hand things of to execute the melt operation.  This function
- * parses the JSON arrays and then passes processing on to
- * #handle_refresh_melt_binary().
- *
- * @param connection the MHD connection to handle
- * @param new_denoms array of denomination keys
- * @param melt_coins array of coins to melt
- * @param num_oldcoins number of coins that are being melted
- * @param transfer_pubs #TALER_CNC_KAPPA-dimensional array of @a num_oldcoins transfer keys
- * @param secret_encs #TALER_CNC_KAPPA-dimensional array of @a num_oldcoins secrets
- * @param num_newcoins number of coins that the refresh will generate
- * @param coin_evs #TALER_CNC_KAPPA-dimensional array of @a num_newcoins envelopes to sign
- * @param link_encs #TALER_CNC_KAPPA-dimensional array of @a num_newcoins encrypted links
- * @return MHD result code
- */
-static int
-handle_refresh_melt_json (struct MHD_Connection *connection,
-                          const json_t *new_denoms,
-                          const json_t *melt_coins,
-                          unsigned int num_oldcoins,
-                          const json_t *transfer_pubs,
-                          const json_t *secret_encs,
-                          unsigned int num_newcoins,
-                          const json_t *coin_evs,
-                          const json_t *link_encs)
-{
-  int res;
-  unsigned int i;
-  unsigned int j;
-  struct TALER_DenominationPublicKey *denom_pubs;
-  unsigned int num_new_denoms;
-  struct TMH_DB_MeltDetails *coin_melt_details;
-  unsigned int coin_count;
-  struct GNUNET_HashCode session_hash;
-  struct GNUNET_HashContext *hash_context;
-  struct TALER_MINTDB_RefreshCommitCoin *commit_coin[TALER_CNC_KAPPA];
-  struct TALER_RefreshCommitLinkP *commit_link[TALER_CNC_KAPPA];
-
-  /* For the signature check, we hash most of the inputs together
-     (except for the signatures on the coins). */
-  hash_context = GNUNET_CRYPTO_hash_context_start ();
-  num_new_denoms = json_array_size (new_denoms);
-  denom_pubs = GNUNET_malloc (num_new_denoms *
-                              sizeof (struct TALER_DenominationPublicKey));
-  for (i=0;i<num_new_denoms;i++)
-  {
-    char *buf;
-    size_t buf_size;
-
-    res = TMH_PARSE_navigate_json (connection,
-                                   new_denoms,
-                                   TMH_PARSE_JNC_INDEX, (int) i,
-                                   TMH_PARSE_JNC_RET_RSA_PUBLIC_KEY,
-                                   &denom_pubs[i].rsa_public_key);
-    if (GNUNET_OK != res)
-    {
-      res = (GNUNET_NO == res) ? MHD_YES : MHD_NO;
-      goto cleanup_denoms;
-    }
-    buf_size = GNUNET_CRYPTO_rsa_public_key_encode (denom_pubs[i].rsa_public_key,
-                                                    &buf);
-    GNUNET_CRYPTO_hash_context_read (hash_context,
-                                     buf,
-                                     buf_size);
-    GNUNET_free (buf);
-  }
-
-  coin_count = json_array_size (melt_coins);
-  coin_melt_details = GNUNET_new_array (coin_count,
-                                        struct TMH_DB_MeltDetails);
-  for (i=0;i<coin_count;i++)
-  {
-    /* decode JSON data on coin to melt */
-    struct TALER_AmountNBO melt_amount;
-
-    res = get_coin_public_info (connection,
-                                json_array_get (melt_coins, i),
-                                &coin_melt_details[i]);
-    if (GNUNET_OK != res)
-    {
-      GNUNET_break_op (0);
-      res = (GNUNET_NO == res) ? MHD_YES : MHD_NO;
-      goto cleanup_melt_details;
-    }
-    /* Check that the client does not try to melt the same coin twice
-       into the same session! */
-    for (j=0;j<i;j++)
-    {
-      if (0 == memcmp (&coin_melt_details[i].coin_info.coin_pub,
-                       &coin_melt_details[j].coin_info.coin_pub,
-                       sizeof (struct TALER_CoinSpendPublicKeyP)))
-      {
-        GNUNET_break_op (0);
-        res = TMH_RESPONSE_reply_external_error (connection,
-                                                 "melting same coin twice in same session is not allowed");
-        goto cleanup_melt_details;
-      }
-    }
-    TALER_amount_hton (&melt_amount,
-                       &coin_melt_details[i].melt_amount_with_fee);
-    GNUNET_CRYPTO_hash_context_read (hash_context,
-                                     &coin_melt_details[i].coin_info.coin_pub,
-                                     sizeof (struct TALER_CoinSpendPublicKeyP));
-    GNUNET_CRYPTO_hash_context_read (hash_context,
-                                     &melt_amount,
-                                     sizeof (struct TALER_AmountNBO));
-  }
-
-  /* parse JSON arrays into 2d binary arrays and hash everything
-     together for the signature check */
-  memset (commit_coin, 0, sizeof (commit_coin));
-  memset (commit_link, 0, sizeof (commit_link));
-  for (i = 0; i < TALER_CNC_KAPPA; i++)
-  {
-    commit_coin[i] = GNUNET_malloc (num_newcoins *
-                                    sizeof (struct TALER_MINTDB_RefreshCommitCoin));
-    for (j = 0; j < num_newcoins; j++)
-    {
-      char *link_enc;
-      size_t link_enc_size;
-      struct TALER_MINTDB_RefreshCommitCoin *rcc = &commit_coin[i][j];
-
-      res = TMH_PARSE_navigate_json (connection,
-                                     coin_evs,
-                                     TMH_PARSE_JNC_INDEX, (int) i,
-                                     TMH_PARSE_JNC_INDEX, (int) j,
-                                     TMH_PARSE_JNC_RET_DATA_VAR,
-                                     &rcc->coin_ev,
-                                     &rcc->coin_ev_size);
-
-      if (GNUNET_OK != res)
-      {
-        GNUNET_break_op (0);
-        res = (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
-        goto cleanup;
-      }
-
-      GNUNET_CRYPTO_hash_context_read (hash_context,
-                                       rcc->coin_ev,
-                                       rcc->coin_ev_size);
-      res = TMH_PARSE_navigate_json (connection,
-                                     link_encs,
-                                     TMH_PARSE_JNC_INDEX, (int) i,
-                                     TMH_PARSE_JNC_INDEX, (int) j,
-                                     TMH_PARSE_JNC_RET_DATA_VAR,
-                                     &link_enc,
-                                     &link_enc_size);
-      if (GNUNET_OK != res)
-      {
-        GNUNET_break_op (0);
-        res = (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
-        goto cleanup;
-      }
-      rcc->refresh_link
-        = TALER_refresh_link_encrypted_decode (link_enc,
-                                               link_enc_size);
-      GNUNET_CRYPTO_hash_context_read (hash_context,
-                                       link_enc,
-                                       link_enc_size);
-      GNUNET_free (link_enc);
-    }
-  }
-
-  for (i = 0; i < TALER_CNC_KAPPA; i++)
-  {
-    commit_link[i] = GNUNET_malloc (num_oldcoins *
-                                    sizeof (struct TALER_RefreshCommitLinkP));
-    for (j = 0; j < num_oldcoins; j++)
-    {
-      struct TALER_RefreshCommitLinkP *rcl = &commit_link[i][j];
-
-      res = TMH_PARSE_navigate_json (connection,
-                                     transfer_pubs,
-                                     TMH_PARSE_JNC_INDEX, (int) i,
-                                     TMH_PARSE_JNC_INDEX, (int) j,
-                                     TMH_PARSE_JNC_RET_DATA,
-                                     &rcl->transfer_pub,
-                                     sizeof (struct TALER_TransferPublicKeyP));
-      if (GNUNET_OK != res)
-      {
-        GNUNET_break_op (0);
-        res = (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
-        goto cleanup;
-      }
-      res = TMH_PARSE_navigate_json (connection,
-                                     secret_encs,
-                                     TMH_PARSE_JNC_INDEX, (int) i,
-                                     TMH_PARSE_JNC_INDEX, (int) j,
-                                     TMH_PARSE_JNC_RET_DATA,
-                                     &rcl->shared_secret_enc,
-                                     sizeof (struct TALER_EncryptedLinkSecretP));
-      if (GNUNET_OK != res)
-      {
-        GNUNET_break_op (0);
-        res = (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
-        goto cleanup;
-      }
-      GNUNET_CRYPTO_hash_context_read (hash_context,
-                                       rcl,
-                                       sizeof (struct TALER_RefreshCommitLinkP));
-    }
-  }
-  GNUNET_CRYPTO_hash_context_finish (hash_context,
-                                     &session_hash);
-  hash_context = NULL;
-  for (i=0;i<coin_count;i++)
-  {
-    /* verify signatures on coins to melt */
-    res = verify_coin_public_info (connection,
-                                   &session_hash,
-                                   &coin_melt_details[i]);
-    if (GNUNET_OK != res)
-    {
-      GNUNET_break_op (0);
-      res = (GNUNET_NO == res) ? MHD_YES : MHD_NO;
-      goto cleanup;
-    }
-  }
-
-  /* execute commit */
-  res = handle_refresh_melt_binary (connection,
-                                    num_new_denoms,
-                                    denom_pubs,
-                                    coin_count,
-                                    coin_melt_details,
-                                    &session_hash,
-                                    commit_coin,
-                                    commit_link);
- cleanup:
-  free_commit_coins (commit_coin,
-                     TALER_CNC_KAPPA,
-                     num_newcoins);
-  free_commit_links (commit_link,
-                     TALER_CNC_KAPPA,
-                     num_oldcoins);
- cleanup_melt_details:
-  for (j=0;j<coin_count;j++)
-  {
-    if (NULL != coin_melt_details[j].coin_info.denom_pub.rsa_public_key)
-      GNUNET_CRYPTO_rsa_public_key_free (coin_melt_details[j].coin_info.denom_pub.rsa_public_key);
-    if (NULL != coin_melt_details[j].coin_info.denom_sig.rsa_signature)
-      GNUNET_CRYPTO_rsa_signature_free (coin_melt_details[j].coin_info.denom_sig.rsa_signature);
-  }
-  GNUNET_free (coin_melt_details);
- cleanup_denoms:
-  for (j=0;j<num_new_denoms;j++)
-    if (NULL != denom_pubs[j].rsa_public_key)
-      GNUNET_CRYPTO_rsa_public_key_free (denom_pubs[j].rsa_public_key);
-  GNUNET_free (denom_pubs);
-  if (NULL != hash_context)
-    GNUNET_CRYPTO_hash_context_abort (hash_context);
-  return res;
-}
-
-
-/**
- * Handle a "/refresh/melt" request.  Parses the request into the JSON
- * components and then hands things of to #handle_refresh_melt_json()
- * to validate the melted coins, the signature and execute the melt
- * using TMH_DB_execute_refresh_melt().
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_REFRESH_handler_refresh_melt (struct TMH_RequestHandler *rh,
-                                  struct MHD_Connection *connection,
-                                  void **connection_cls,
-                                  const char *upload_data,
-                                  size_t *upload_data_size)
-{
-  json_t *root;
-  json_t *new_denoms;
-  json_t *melt_coins;
-  json_t *coin_evs;
-  json_t *link_encs;
-  json_t *transfer_pubs;
-  json_t *secret_encs;
-  unsigned int num_oldcoins;
-  unsigned int num_newcoins;
-  json_t *coin_detail;
-  int res;
-  struct TMH_PARSE_FieldSpecification spec[] = {
-    TMH_PARSE_member_array ("new_denoms", &new_denoms),
-    TMH_PARSE_member_array ("melt_coins", &melt_coins),
-    TMH_PARSE_member_array ("coin_evs", &coin_evs),
-    TMH_PARSE_member_array ("link_encs", &link_encs),
-    TMH_PARSE_member_array ("transfer_pubs", &transfer_pubs),
-    TMH_PARSE_member_array ("secret_encs", &secret_encs),
-    TMH_PARSE_MEMBER_END
-  };
-
-  res = TMH_PARSE_post_json (connection,
-                             connection_cls,
-                             upload_data,
-                             upload_data_size,
-                             &root);
-  if (GNUNET_SYSERR == res)
-    return MHD_NO;
-  if ( (GNUNET_NO == res) || (NULL == root) )
-    return MHD_YES;
-
-  res = TMH_PARSE_json_data (connection,
-                             root,
-                             spec);
-  json_decref (root);
-  if (GNUNET_OK != res)
-    return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
-
-  /* Determine dimensionality of the request (kappa, #old and #new coins) */
-  if (TALER_CNC_KAPPA != json_array_size (coin_evs))
-  {
-    GNUNET_break_op (0);
-    TMH_PARSE_release_data (spec);
-    return TMH_RESPONSE_reply_arg_invalid (connection,
-                                           "coin_evs");
-  }
-  if (TALER_CNC_KAPPA != json_array_size (transfer_pubs))
-  {
-    GNUNET_break_op (0);
-    TMH_PARSE_release_data (spec);
-    return TMH_RESPONSE_reply_arg_invalid (connection,
-                                           "transfer_pubs");
-  }
-  res = TMH_PARSE_navigate_json (connection,
-                                 coin_evs,
-                                 TMH_PARSE_JNC_INDEX, (int) 0,
-                                 TMH_PARSE_JNC_RET_TYPED_JSON,
-                                 JSON_ARRAY, &coin_detail);
-  if (GNUNET_OK != res)
-  {
-    GNUNET_break_op (0);
-    TMH_PARSE_release_data (spec);
-    return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
-  }
-  num_newcoins = json_array_size (coin_detail);
-  json_decref (coin_detail);
-  res = TMH_PARSE_navigate_json (connection,
-                                 transfer_pubs,
-                                 TMH_PARSE_JNC_INDEX, (int) 0,
-                                 TMH_PARSE_JNC_RET_TYPED_JSON,
-                                 JSON_ARRAY, &coin_detail);
-  if (GNUNET_OK != res)
-  {
-    GNUNET_break_op (0);
-    TMH_PARSE_release_data (spec);
-    return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
-  }
-  num_oldcoins = json_array_size (coin_detail);
-  json_decref (coin_detail);
-  res = handle_refresh_melt_json (connection,
-                                  new_denoms,
-                                  melt_coins,
-                                  num_oldcoins,
-                                  transfer_pubs,
-                                  secret_encs,
-                                  num_newcoins,
-                                  coin_evs,
-                                  link_encs);
-  TMH_PARSE_release_data (spec);
-  return res;
-}
-
-
-/**
- * Handle a "/refresh/reveal" request.   Parses the given JSON
- * transfer private keys and if successful, passes everything to
- * #TMH_DB_execute_refresh_reveal() which will verify that the
- * revealed information is valid then returns the signed refreshed
- * coins.
- *
- * @param connection the MHD connection to handle
- * @param session_hash hash identifying the melting session
- * @param num_oldcoins length of the 2nd dimension of @a transfer_privs array
- * @param tp_json private transfer keys in JSON format
- * @return MHD result code
-  */
-static int
-handle_refresh_reveal_json (struct MHD_Connection *connection,
-                            const struct GNUNET_HashCode *session_hash,
-                            unsigned int num_oldcoins,
-                            const json_t *tp_json)
-{
-  struct TALER_TransferPrivateKeyP *transfer_privs[TALER_CNC_KAPPA - 1];
-  unsigned int i;
-  unsigned int j;
-  int res;
-
-  for (i = 0; i < TALER_CNC_KAPPA - 1; i++)
-    transfer_privs[i] = GNUNET_malloc (num_oldcoins *
-                                       sizeof (struct TALER_TransferPrivateKeyP));
-  res = GNUNET_OK;
-  for (i = 0; i < TALER_CNC_KAPPA - 1; i++)
-  {
-    if (GNUNET_OK != res)
-      break;
-    for (j = 0; j < num_oldcoins; j++)
-    {
-      if (GNUNET_OK != res)
-        break;
-      res = TMH_PARSE_navigate_json (connection,
-                                     tp_json,
-                                     TMH_PARSE_JNC_INDEX, (int) i,
-                                     TMH_PARSE_JNC_INDEX, (int) j,
-                                     TMH_PARSE_JNC_RET_DATA,
-                                     &transfer_privs[i][j],
-                                     sizeof (struct TALER_TransferPrivateKeyP));
-      GNUNET_break_op (GNUNET_OK == res);
-    }
-  }
-  if (GNUNET_OK != res)
-    res = (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
-  else
-    res = TMH_DB_execute_refresh_reveal (connection,
-					 session_hash,
-					 num_oldcoins,
-					 transfer_privs);
-  for (i = 0; i < TALER_CNC_KAPPA - 1; i++)
-    GNUNET_free (transfer_privs[i]);
-  return res;
-}
-
-
-/**
- * Handle a "/refresh/reveal" request. This time, the client reveals
- * the private transfer keys except for the cut-and-choose value
- * returned from "/refresh/melt".  This function parses the revealed
- * keys and secrets and ultimately passes everything to
- * #TMH_DB_execute_refresh_reveal() which will verify that the
- * revealed information is valid then returns the signed refreshed
- * coins.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_REFRESH_handler_refresh_reveal (struct TMH_RequestHandler *rh,
-                                    struct MHD_Connection *connection,
-                                    void **connection_cls,
-                                    const char *upload_data,
-                                    size_t *upload_data_size)
-{
-  struct GNUNET_HashCode session_hash;
-  int res;
-  unsigned int num_oldcoins;
-  json_t *reveal_detail;
-  json_t *root;
-  json_t *transfer_privs;
-  struct TMH_PARSE_FieldSpecification spec[] = {
-    TMH_PARSE_member_fixed ("session_hash", &session_hash),
-    TMH_PARSE_member_array ("transfer_privs", &transfer_privs),
-    TMH_PARSE_MEMBER_END
-  };
-
-  res = TMH_PARSE_post_json (connection,
-                             connection_cls,
-                             upload_data,
-                             upload_data_size,
-                             &root);
-  if (GNUNET_SYSERR == res)
-    return MHD_NO;
-  if ( (GNUNET_NO == res) || (NULL == root) )
-    return MHD_YES;
-
-  res = TMH_PARSE_json_data (connection,
-                             root,
-                             spec);
-  json_decref (root);
-  if (GNUNET_OK != res)
-  {
-    GNUNET_break_op (0);
-    return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
-  }
-  /* Determine dimensionality of the request (kappa and #old coins) */
-  /* Note we do +1 as 1 row (cut-and-choose!) is missing! */
-  if (TALER_CNC_KAPPA != json_array_size (transfer_privs) + 1)
-  {
-    TMH_PARSE_release_data (spec);
-    GNUNET_break_op (0);
-    return TMH_RESPONSE_reply_arg_invalid (connection,
-                                           "transfer_privs");
-  }
-  res = TMH_PARSE_navigate_json (connection,
-                                 transfer_privs,
-                                 TMH_PARSE_JNC_INDEX, 0,
-                                 TMH_PARSE_JNC_RET_TYPED_JSON,
-                                 JSON_ARRAY,
-                                 &reveal_detail);
-  if (GNUNET_OK != res)
-  {
-    TMH_PARSE_release_data (spec);
-    GNUNET_break_op (0);
-    return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
-  }
-  num_oldcoins = json_array_size (reveal_detail);
-  json_decref (reveal_detail);
-  res = handle_refresh_reveal_json (connection,
-                                    &session_hash,
-                                    num_oldcoins,
-                                    transfer_privs);
-  TMH_PARSE_release_data (spec);
-  return res;
-}
-
-
-/**
- * Handle a "/refresh/link" request.  Note that for "/refresh/link"
- * we do use a simple HTTP GET, and a HTTP POST!
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_REFRESH_handler_refresh_link (struct TMH_RequestHandler *rh,
-                                  struct MHD_Connection *connection,
-                                  void **connection_cls,
-                                  const char *upload_data,
-                                  size_t *upload_data_size)
-{
-  struct TALER_CoinSpendPublicKeyP coin_pub;
-  int res;
-
-  res = TMH_PARSE_mhd_request_arg_data (connection,
-                                        "coin_pub",
-                                        &coin_pub,
-                                        sizeof (struct TALER_CoinSpendPublicKeyP));
-  if (GNUNET_SYSERR == res)
-    return MHD_NO;
-  if (GNUNET_OK != res)
-    return MHD_YES;
-  return TMH_DB_execute_refresh_link (connection,
-                                      &coin_pub);
-}
-
-
-/* end of taler-mint-httpd_refresh.c */
diff --git a/src/mint/taler-mint-httpd_refresh.h b/src/mint/taler-mint-httpd_refresh.h
deleted file mode 100644
index 8fe12a272..000000000
--- a/src/mint/taler-mint-httpd_refresh.h
+++ /dev/null
@@ -1,94 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_refresh.h
- * @brief Handle /refresh/ requests
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#ifndef TALER_MINT_HTTPD_REFRESH_H
-#define TALER_MINT_HTTPD_REFRESH_H
-
-#include <gnunet/gnunet_util_lib.h>
-#include <microhttpd.h>
-#include "taler-mint-httpd.h"
-
-
-/**
- * Handle a "/refresh/melt" request.  Parses the request into the JSON
- * components and then hands things of to #handle_refresh_melt_json()
- * to validate the melted coins, the signature and execute the melt
- * using TMH_DB_execute_refresh_melt().
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_REFRESH_handler_refresh_melt (struct TMH_RequestHandler *rh,
-                                  struct MHD_Connection *connection,
-                                  void **connection_cls,
-                                  const char *upload_data,
-                                  size_t *upload_data_size);
-
-
-/**
- * Handle a "/refresh/reveal" request.  This time, the client reveals
- * the private transfer keys except for the cut-and-choose value
- * returned from "/refresh/commit".  This function parses the revealed
- * keys and secrets and ultimately passes everything to
- * #TMH_DB_execute_refresh_reveal() which will verify that the
- * revealed information is valid then returns the signed refreshed
- * coins.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_REFRESH_handler_refresh_reveal (struct TMH_RequestHandler *rh,
-                                    struct MHD_Connection *connection,
-                                    void **connection_cls,
-                                    const char *upload_data,
-                                    size_t *upload_data_size);
-
-
-/**
- * Handle a "/refresh/link" request
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_REFRESH_handler_refresh_link (struct TMH_RequestHandler *rh,
-                                  struct MHD_Connection *connection,
-                                  void **connection_cls,
-                                  const char *upload_data,
-                                  size_t *upload_data_size);
-
-
-#endif
diff --git a/src/mint/taler-mint-httpd_reserve.c b/src/mint/taler-mint-httpd_reserve.c
deleted file mode 100644
index c887ee750..000000000
--- a/src/mint/taler-mint-httpd_reserve.c
+++ /dev/null
@@ -1,186 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014,2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_reserve.c
- * @brief Handle /reserve/ requests
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <gnunet/gnunet_util_lib.h>
-#include <jansson.h>
-#include "taler-mint-httpd_reserve.h"
-#include "taler-mint-httpd_parsing.h"
-#include "taler-mint-httpd_responses.h"
-#include "taler-mint-httpd_keystate.h"
-
-
-/**
- * Handle a "/reserve/status" request.  Parses the
- * given "reserve_pub" argument (which should contain the
- * EdDSA public key of a reserve) and then respond with the
- * status of the reserve.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_RESERVE_handler_reserve_status (struct TMH_RequestHandler *rh,
-                                    struct MHD_Connection *connection,
-                                    void **connection_cls,
-                                    const char *upload_data,
-                                    size_t *upload_data_size)
-{
-  struct TALER_ReservePublicKeyP reserve_pub;
-  int res;
-
-  res = TMH_PARSE_mhd_request_arg_data (connection,
-                                        "reserve_pub",
-                                        &reserve_pub,
-                                        sizeof (struct TALER_ReservePublicKeyP));
-  if (GNUNET_SYSERR == res)
-    return MHD_NO; /* internal error */
-  if (GNUNET_NO == res)
-    return MHD_YES; /* parse error */
-  return TMH_DB_execute_reserve_status (connection,
-                                        &reserve_pub);
-}
-
-
-/**
- * Handle a "/reserve/withdraw" request.  Parses the "reserve_pub"
- * EdDSA key of the reserve and the requested "denom_pub" which
- * specifies the key/value of the coin to be withdrawn, and checks
- * that the signature "reserve_sig" makes this a valid withdrawl
- * request from the specified reserve.  If so, the envelope
- * with the blinded coin "coin_ev" is passed down to execute the
- * withdrawl operation.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_RESERVE_handler_reserve_withdraw (struct TMH_RequestHandler *rh,
-                                      struct MHD_Connection *connection,
-                                      void **connection_cls,
-                                      const char *upload_data,
-                                      size_t *upload_data_size)
-{
-  json_t *root;
-  struct TALER_WithdrawRequestPS wsrd;
-  int res;
-  struct TALER_DenominationPublicKey denomination_pub;
-  char *blinded_msg;
-  size_t blinded_msg_len;
-  struct TALER_Amount amount;
-  struct TALER_Amount amount_with_fee;
-  struct TALER_Amount fee_withdraw;
-  struct TALER_ReserveSignatureP signature;
-  struct TALER_MINTDB_DenominationKeyIssueInformation *dki;
-  struct TMH_KS_StateHandle *ks;
-
-  struct TMH_PARSE_FieldSpecification spec[] = {
-    TMH_PARSE_member_variable ("coin_ev",
-                               (void **) &blinded_msg,
-                               &blinded_msg_len),
-    TMH_PARSE_member_fixed ("reserve_pub",
-                            &wsrd.reserve_pub),
-    TMH_PARSE_member_fixed ("reserve_sig",
-                            &signature),
-    TMH_PARSE_member_denomination_public_key ("denom_pub",
-                                              &denomination_pub),
-    TMH_PARSE_MEMBER_END
-  };
-
-  res = TMH_PARSE_post_json (connection,
-                             connection_cls,
-                             upload_data,
-                             upload_data_size,
-                             &root);
-  if (GNUNET_SYSERR == res)
-    return MHD_NO;
-  if ( (GNUNET_NO == res) || (NULL == root) )
-    return MHD_YES;
-  res = TMH_PARSE_json_data (connection,
-                             root,
-                             spec);
-  json_decref (root);
-  if (GNUNET_OK != res)
-    return (GNUNET_SYSERR == res) ? MHD_NO : MHD_YES;
-  ks = TMH_KS_acquire ();
-  dki = TMH_KS_denomination_key_lookup (ks,
-                                        &denomination_pub,
-					TMH_KS_DKU_WITHDRAW);
-  if (NULL == dki)
-  {
-    TMH_PARSE_release_data (spec);
-    TMH_KS_release (ks);
-    return TMH_RESPONSE_reply_arg_unknown (connection,
-                                           "denom_pub");
-  }
-  TALER_amount_ntoh (&amount,
-                     &dki->issue.properties.value);
-  TALER_amount_ntoh (&fee_withdraw,
-                     &dki->issue.properties.fee_withdraw);
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_amount_add (&amount_with_fee,
-                                   &amount,
-                                   &fee_withdraw));
-  TALER_amount_hton (&wsrd.amount_with_fee,
-                     &amount_with_fee);
-  TALER_amount_hton (&wsrd.withdraw_fee,
-                     &fee_withdraw);
-  TMH_KS_release (ks);
-  /* verify signature! */
-  wsrd.purpose.size = htonl (sizeof (struct TALER_WithdrawRequestPS));
-  wsrd.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_RESERVE_WITHDRAW);
-
-  GNUNET_CRYPTO_rsa_public_key_hash (denomination_pub.rsa_public_key,
-                                     &wsrd.h_denomination_pub);
-  GNUNET_CRYPTO_hash (blinded_msg,
-                      blinded_msg_len,
-                      &wsrd.h_coin_envelope);
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_RESERVE_WITHDRAW,
-                                  &wsrd.purpose,
-                                  &signature.eddsa_signature,
-                                  &wsrd.reserve_pub.eddsa_pub))
-  {
-    TALER_LOG_WARNING ("Client supplied invalid signature for /reserve/withdraw request\n");
-    TMH_PARSE_release_data (spec);
-    return TMH_RESPONSE_reply_signature_invalid (connection,
-                                                 "reserve_sig");
-  }
-  res = TMH_DB_execute_reserve_withdraw (connection,
-                                         &wsrd.reserve_pub,
-                                         &denomination_pub,
-                                         blinded_msg,
-                                         blinded_msg_len,
-                                         &signature);
-  TMH_PARSE_release_data (spec);
-  return res;
-}
-
-/* end of taler-mint-httpd_reserve.c */
diff --git a/src/mint/taler-mint-httpd_reserve.h b/src/mint/taler-mint-httpd_reserve.h
deleted file mode 100644
index 71a779fe3..000000000
--- a/src/mint/taler-mint-httpd_reserve.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_reserve.h
- * @brief Handle /reserve/ requests
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#ifndef TALER_MINT_HTTPD_RESERVE_H
-#define TALER_MINT_HTTPD_RESERVE_H
-
-#include <microhttpd.h>
-#include "taler-mint-httpd.h"
-
-/**
- * Handle a "/reserve/status" request.  Parses the
- * given "reserve_pub" argument (which should contain the
- * EdDSA public key of a reserve) and then respond with the
- * status of the reserve.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_RESERVE_handler_reserve_status (struct TMH_RequestHandler *rh,
-                                    struct MHD_Connection *connection,
-                                    void **connection_cls,
-                                    const char *upload_data,
-                                    size_t *upload_data_size);
-
-
-/**
- * Handle a "/reserve/withdraw" request.  Parses the "reserve_pub"
- * EdDSA key of the reserve and the requested "denom_pub" which
- * specifies the key/value of the coin to be withdrawn, and checks
- * that the signature "reserve_sig" makes this a valid withdrawl
- * request from the specified reserve.  If so, the envelope
- * with the blinded coin "coin_ev" is passed down to execute the
- * withdrawl operation.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_RESERVE_handler_reserve_withdraw (struct TMH_RequestHandler *rh,
-                                      struct MHD_Connection *connection,
-                                      void **connection_cls,
-                                      const char *upload_data,
-                                      size_t *upload_data_size);
-
-#endif
diff --git a/src/mint/taler-mint-httpd_responses.c b/src/mint/taler-mint-httpd_responses.c
deleted file mode 100644
index 2ebd0d331..000000000
--- a/src/mint/taler-mint-httpd_responses.c
+++ /dev/null
@@ -1,1177 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_responses.c
- * @brief API for generating the various replies of the mint; these
- *        functions are called TMH_RESPONSE_reply_ and they generate
- *        and queue MHD response objects for a given connection.
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include "taler-mint-httpd_responses.h"
-#include "taler_util.h"
-#include <gnunet/gnunet_util_lib.h>
-#include "taler-mint-httpd_keystate.h"
-
-
-/**
- * Add headers we want to return in every response.
- * Useful for testing, like if we want to always close
- * connections.
- *
- * @param response response to modify
- */
-void
-TMH_RESPONSE_add_global_headers (struct MHD_Response *response)
-{
-  if (TMH_mint_connection_close)
-    (void) MHD_add_response_header (response,
-                                    MHD_HTTP_HEADER_CONNECTION,
-                                    "close");
-}
-
-
-/**
- * Send JSON object as response.
- *
- * @param connection the MHD connection
- * @param json the json object
- * @param response_code the http response code
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_json (struct MHD_Connection *connection,
-                         const json_t *json,
-                         unsigned int response_code)
-{
-  struct MHD_Response *resp;
-  char *json_str;
-  int ret;
-
-  json_str = json_dumps (json, JSON_INDENT(2));
-  GNUNET_assert (NULL != json_str);
-  resp = MHD_create_response_from_buffer (strlen (json_str), json_str,
-                                          MHD_RESPMEM_MUST_FREE);
-  if (NULL == resp)
-  {
-    free (json_str);
-    GNUNET_break (0);
-    return MHD_NO;
-  }
-  TMH_RESPONSE_add_global_headers (resp);
-  (void) MHD_add_response_header (resp,
-                                  MHD_HTTP_HEADER_CONTENT_TYPE,
-                                  "application/json");
-  ret = MHD_queue_response (connection,
-                            response_code,
-                            resp);
-  MHD_destroy_response (resp);
-  return ret;
-}
-
-
-/**
- * Function to call to handle the request by building a JSON
- * reply from a format string and varargs.
- *
- * @param connection the MHD connection to handle
- * @param response_code HTTP response code to use
- * @param fmt format string for pack
- * @param ... varargs
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_json_pack (struct MHD_Connection *connection,
-                              unsigned int response_code,
-                              const char *fmt,
-                              ...)
-{
-  json_t *json;
-  va_list argp;
-  int ret;
-  json_error_t jerror;
-
-  va_start (argp, fmt);
-  json = json_vpack_ex (&jerror, 0, fmt, argp);
-  va_end (argp);
-  if (NULL == json)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Failed to pack JSON with format `%s': %s\n",
-                fmt,
-                jerror.text);
-    GNUNET_break (0);
-    return MHD_NO;
-  }
-  ret = TMH_RESPONSE_reply_json (connection,
-                                 json,
-                                 response_code);
-  json_decref (json);
-  return ret;
-}
-
-
-/**
- * Send a response indicating an invalid argument.
- *
- * @param connection the MHD connection to use
- * @param param_name the parameter that is invalid
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_arg_invalid (struct MHD_Connection *connection,
-                                const char *param_name)
-{
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_BAD_REQUEST,
-                                       "{s:s, s:s}",
-                                       "error", "invalid parameter",
-                                       "parameter", param_name);
-}
-
-
-/**
- * Send a response indicating an argument refering to a
- * resource unknown to the mint (i.e. unknown reserve or
- * denomination key).
- *
- * @param connection the MHD connection to use
- * @param param_name the parameter that is invalid
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_arg_unknown (struct MHD_Connection *connection,
-                                const char *param_name)
-{
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_NOT_FOUND,
-                                       "{s:s, s:s}",
-                                       "error", "unknown entity referenced",
-                                       "parameter", param_name);
-}
-
-
-/**
- * Send a response indicating an invalid signature.
- *
- * @param connection the MHD connection to use
- * @param param_name the parameter that is invalid
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_signature_invalid (struct MHD_Connection *connection,
-                                      const char *param_name)
-{
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_UNAUTHORIZED,
-                                       "{s:s, s:s}",
-                                       "error", "invalid signature",
-                                       "parameter", param_name);
-}
-
-
-/**
- * Send a response indicating a missing argument.
- *
- * @param connection the MHD connection to use
- * @param param_name the parameter that is missing
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_arg_missing (struct MHD_Connection *connection,
-                                const char *param_name)
-{
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_BAD_REQUEST,
-                                       "{ s:s, s:s}",
-                                       "error", "missing parameter",
-                                       "parameter", param_name);
-}
-
-
-/**
- * Send a response indicating permission denied.
- *
- * @param connection the MHD connection to use
- * @param hint hint about why access was denied
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_permission_denied (struct MHD_Connection *connection,
-                                      const char *hint)
-{
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_FORBIDDEN,
-                                       "{s:s, s:s}",
-                                       "error", "permission denied",
-                                       "hint", hint);
-}
-
-
-/**
- * Send a response indicating an internal error.
- *
- * @param connection the MHD connection to use
- * @param hint hint about the internal error's nature
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_internal_error (struct MHD_Connection *connection,
-                                   const char *hint)
-{
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_INTERNAL_SERVER_ERROR,
-                                       "{s:s, s:s}",
-                                       "error", "internal error",
-                                       "hint", hint);
-}
-
-
-/**
- * Send a response indicating an external error.
- *
- * @param connection the MHD connection to use
- * @param hint hint about the error's nature
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_external_error (struct MHD_Connection *connection,
-                                   const char *hint)
-{
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_BAD_REQUEST,
-                                       "{s:s, s:s}",
-                                       "error", "client error",
-                                       "hint", hint);
-}
-
-
-/**
- * Send a response indicating an error committing a
- * transaction (concurrent interference).
- *
- * @param connection the MHD connection to use
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_commit_error (struct MHD_Connection *connection)
-{
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_BAD_REQUEST,
-                                       "{s:s}",
-                                       "error", "commit failure");
-}
-
-
-/**
- * Send a response indicating a failure to talk to the Mint's
- * database.
- *
- * @param connection the MHD connection to use
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_internal_db_error (struct MHD_Connection *connection)
-{
-  return TMH_RESPONSE_reply_internal_error (connection,
-                                            "Failed to connect to database");
-}
-
-
-/**
- * Send a response indicating that the request was too big.
- *
- * @param connection the MHD connection to use
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_request_too_large (struct MHD_Connection *connection)
-{
-  struct MHD_Response *resp;
-  int ret;
-
-  resp = MHD_create_response_from_buffer (0,
-                                          NULL,
-                                          MHD_RESPMEM_PERSISTENT);
-  if (NULL == resp)
-    return MHD_NO;
-  TMH_RESPONSE_add_global_headers (resp);
-  ret = MHD_queue_response (connection,
-                            MHD_HTTP_REQUEST_ENTITY_TOO_LARGE,
-                            resp);
-  MHD_destroy_response (resp);
-  return ret;
-}
-
-
-/**
- * Send a response indicating that the JSON was malformed.
- *
- * @param connection the MHD connection to use
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_invalid_json (struct MHD_Connection *connection)
-{
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_BAD_REQUEST,
-                                       "{s:s}",
-                                       "error",
-                                       "invalid json");
-}
-
-
-/**
- * Send confirmation of deposit success to client.  This function
- * will create a signed message affirming the given information
- * and return it to the client.  By this, the mint affirms that
- * the coin had sufficient (residual) value for the specified
- * transaction and that it will execute the requested deposit
- * operation with the given wiring details.
- *
- * @param connection connection to the client
- * @param coin_pub public key of the coin
- * @param h_wire hash of wire details
- * @param h_contract hash of contract details
- * @param transaction_id transaction ID
- * @param timestamp client's timestamp
- * @param refund_deadline until when this deposit be refunded
- * @param merchant merchant public key
- * @param amount_without_fee fraction of coin value to deposit, without the fee
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_deposit_success (struct MHD_Connection *connection,
-                                    const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                                    const struct GNUNET_HashCode *h_wire,
-                                    const struct GNUNET_HashCode *h_contract,
-                                    uint64_t transaction_id,
-                                    struct GNUNET_TIME_Absolute timestamp,
-                                    struct GNUNET_TIME_Absolute refund_deadline,
-                                    const struct TALER_MerchantPublicKeyP *merchant,
-                                    const struct TALER_Amount *amount_without_fee)
-{
-  struct TALER_DepositConfirmationPS dc;
-  struct TALER_MintPublicKeyP pub;
-  struct TALER_MintSignatureP sig;
-
-  dc.purpose.purpose = htonl (TALER_SIGNATURE_MINT_CONFIRM_DEPOSIT);
-  dc.purpose.size = htonl (sizeof (struct TALER_DepositConfirmationPS));
-  dc.h_contract = *h_contract;
-  dc.h_wire = *h_wire;
-  dc.transaction_id = GNUNET_htonll (transaction_id);
-  dc.timestamp = GNUNET_TIME_absolute_hton (timestamp);
-  dc.refund_deadline = GNUNET_TIME_absolute_hton (refund_deadline);
-  TALER_amount_hton (&dc.amount_without_fee,
-                     amount_without_fee);
-  dc.coin_pub = *coin_pub;
-  dc.merchant = *merchant;
-  TMH_KS_sign (&dc.purpose,
-               &pub,
-               &sig);
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_OK,
-                                       "{s:s, s:o, s:o}",
-                                       "status", "DEPOSIT_OK",
-                                       "sig", TALER_json_from_data (&sig,
-                                                                    sizeof (sig)),
-                                       "pub", TALER_json_from_data (&pub,
-                                                                    sizeof (pub)));
-}
-
-
-/**
- * Compile the transaction history of a coin into a JSON object.
- *
- * @param tl transaction history to JSON-ify
- * @return json representation of the @a rh
- */
-static json_t *
-compile_transaction_history (const struct TALER_MINTDB_TransactionList *tl)
-{
-  json_t *details;
-  const char *type;
-  struct TALER_Amount value;
-  json_t *history;
-  const struct TALER_CoinSpendSignatureP *sig;
-  const struct TALER_MINTDB_TransactionList *pos;
-
-  history = json_array ();
-  for (pos = tl; NULL != pos; pos = pos->next)
-  {
-    switch (pos->type)
-    {
-    case TALER_MINTDB_TT_DEPOSIT:
-      {
-        struct TALER_DepositRequestPS dr;
-        const struct TALER_MINTDB_Deposit *deposit = pos->details.deposit;
-
-        type = "DEPOSIT";
-        value = deposit->amount_with_fee;
-        dr.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_DEPOSIT);
-        dr.purpose.size = htonl (sizeof (struct TALER_DepositRequestPS));
-        dr.h_contract = deposit->h_contract;
-        dr.h_wire = deposit->h_wire;
-        dr.timestamp = GNUNET_TIME_absolute_hton (deposit->timestamp);
-        dr.refund_deadline = GNUNET_TIME_absolute_hton (deposit->refund_deadline);
-        dr.transaction_id = GNUNET_htonll (deposit->transaction_id);
-        TALER_amount_hton (&dr.amount_with_fee,
-                           &deposit->amount_with_fee);
-        TALER_amount_hton (&dr.deposit_fee,
-                           &deposit->deposit_fee);
-        dr.merchant = deposit->merchant_pub;
-        dr.coin_pub = deposit->coin.coin_pub;
-        sig = &deposit->csig;
-	/* internal sanity check before we hand out a bogus sig... */
-        if (GNUNET_OK !=
-            GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_DEPOSIT,
-                                        &dr.purpose,
-                                        &sig->eddsa_signature,
-                                        &deposit->coin.coin_pub.eddsa_pub))
-	{
-	  GNUNET_break (0);
-	  json_decref (history);
-	  return NULL;
-	}
-
-        details = TALER_json_from_data (&dr.purpose,
-                                        sizeof (struct TALER_DepositRequestPS));
-        break;
-      }
-    case TALER_MINTDB_TT_REFRESH_MELT:
-      {
-        struct TALER_RefreshMeltCoinAffirmationPS ms;
-        const struct TALER_MINTDB_RefreshMelt *melt = pos->details.melt;
-
-        type = "MELT";
-        value = melt->amount_with_fee;
-        ms.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_COIN_MELT);
-        ms.purpose.size = htonl (sizeof (struct TALER_RefreshMeltCoinAffirmationPS));
-        ms.session_hash = melt->session_hash;
-        TALER_amount_hton (&ms.amount_with_fee,
-                           &melt->amount_with_fee);
-        TALER_amount_hton (&ms.melt_fee,
-                           &melt->melt_fee);
-        ms.coin_pub = melt->coin.coin_pub;
-        sig = &melt->coin_sig;
-	/* internal sanity check before we hand out a bogus sig... */
-        if (GNUNET_OK !=
-            GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_WALLET_COIN_MELT,
-                                        &ms.purpose,
-                                        &sig->eddsa_signature,
-                                        &melt->coin.coin_pub.eddsa_pub))
-	{
-	  GNUNET_break (0);
-	  json_decref (history);
-	  return NULL;
-	}
-
-        details = TALER_json_from_data (&ms.purpose,
-                                        sizeof (struct TALER_RefreshMeltCoinAffirmationPS));
-      }
-      break;
-    default:
-      GNUNET_assert (0);
-    }
-    json_array_append_new (history,
-                           json_pack ("{s:s, s:o, s:o, s:o}",
-                                      "type", type,
-                                      "amount", TALER_json_from_amount (&value),
-                                      "signature", TALER_json_from_data (sig,
-                                                                         sizeof (struct TALER_CoinSpendSignatureP)),
-                                      "details", details));
-  }
-  return history;
-}
-
-
-/**
- * Send proof that a /deposit request is invalid to client.  This
- * function will create a message with all of the operations affecting
- * the coin that demonstrate that the coin has insufficient value.
- *
- * @param connection connection to the client
- * @param tl transaction list to use to build reply
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_deposit_insufficient_funds (struct MHD_Connection *connection,
-                                               const struct TALER_MINTDB_TransactionList *tl)
-{
-  json_t *history;
-
-  history = compile_transaction_history (tl);
-  if (NULL == history)
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_FORBIDDEN,
-                                       "{s:s, s:o}",
-                                       "error", "insufficient funds",
-                                       "history", history);
-}
-
-
-/**
- * Compile the history of a reserve into a JSON object
- * and calculate the total balance.
- *
- * @param rh reserve history to JSON-ify
- * @param[out] balance set to current reserve balance
- * @return json representation of the @a rh, NULL on error
- */
-static json_t *
-compile_reserve_history (const struct TALER_MINTDB_ReserveHistory *rh,
-                         struct TALER_Amount *balance)
-{
-  struct TALER_Amount deposit_total;
-  struct TALER_Amount withdraw_total;
-  struct TALER_Amount value;
-  json_t *json_history;
-  int ret;
-  const struct TALER_MINTDB_ReserveHistory *pos;
-  struct TALER_WithdrawRequestPS wr;
-
-  json_history = json_array ();
-  ret = 0;
-  for (pos = rh; NULL != pos; pos = pos->next)
-  {
-    switch (pos->type)
-    {
-    case TALER_MINTDB_RO_BANK_TO_MINT:
-      if (0 == ret)
-        deposit_total = pos->details.bank->amount;
-      else
-        if (GNUNET_OK !=
-            TALER_amount_add (&deposit_total,
-                              &deposit_total,
-                              &pos->details.bank->amount))
-        {
-          json_decref (json_history);
-          return NULL;
-        }
-      ret = 1;
-      json_array_append_new (json_history,
-                             json_pack ("{s:s, s:O, s:o}",
-                                        "type", "DEPOSIT",
-                                        "wire", pos->details.bank->wire,
-                                        "amount", TALER_json_from_amount (&pos->details.bank->amount)));
-      break;
-    case TALER_MINTDB_RO_WITHDRAW_COIN:
-      break;
-    }
-  }
-
-  ret = 0;
-  for (pos = rh; NULL != pos; pos = pos->next)
-  {
-    switch (pos->type)
-    {
-    case TALER_MINTDB_RO_BANK_TO_MINT:
-      break;
-    case TALER_MINTDB_RO_WITHDRAW_COIN:
-      value = pos->details.withdraw->amount_with_fee;
-      if (0 == ret)
-      {
-        withdraw_total = value;
-      }
-      else
-      {
-        if (GNUNET_OK !=
-            TALER_amount_add (&withdraw_total,
-                              &withdraw_total,
-                              &value))
-        {
-          json_decref (json_history);
-          return NULL;
-        }
-      }
-      ret = 1;
-      wr.purpose.purpose = htonl (TALER_SIGNATURE_WALLET_RESERVE_WITHDRAW);
-      wr.purpose.size = htonl (sizeof (struct TALER_WithdrawRequestPS));
-      wr.reserve_pub = pos->details.withdraw->reserve_pub;
-      TALER_amount_hton (&wr.amount_with_fee,
-                         &value);
-      TALER_amount_hton (&wr.withdraw_fee,
-                         &pos->details.withdraw->withdraw_fee);
-      GNUNET_CRYPTO_rsa_public_key_hash (pos->details.withdraw->denom_pub.rsa_public_key,
-                                         &wr.h_denomination_pub);
-      wr.h_coin_envelope = pos->details.withdraw->h_coin_envelope;
-      json_array_append_new (json_history,
-                             json_pack ("{s:s, s:o, s:o, s:o}",
-                                        "type", "WITHDRAW",
-                                        "signature", TALER_json_from_data (&pos->details.withdraw->reserve_sig,
-                                                                           sizeof (struct TALER_ReserveSignatureP)),
-                                        "details", TALER_json_from_data (&wr,
-                                                                         sizeof (wr)),
-                                        "amount", TALER_json_from_amount (&value)));
-      break;
-    }
-  }
-  if (0 == ret)
-  {
-    /* did not encounter any withdraw operations, set to zero */
-    TALER_amount_get_zero (deposit_total.currency,
-                           &withdraw_total);
-  }
-  if (GNUNET_SYSERR ==
-      TALER_amount_subtract (balance,
-                             &deposit_total,
-                             &withdraw_total))
-  {
-    GNUNET_break (0);
-    json_decref (json_history);
-    return NULL;
-  }
-
-  return json_history;
-}
-
-
-/**
- * Send reserve status information to client.
- *
- * @param connection connection to the client
- * @param rh reserve history to return
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_reserve_status_success (struct MHD_Connection *connection,
-                                           const struct TALER_MINTDB_ReserveHistory *rh)
-{
-  json_t *json_balance;
-  json_t *json_history;
-  struct TALER_Amount balance;
-
-  json_history = compile_reserve_history (rh,
-                                          &balance);
-  if (NULL == json_history)
-    return TMH_RESPONSE_reply_internal_error (connection,
-                                              "balance calculation failure");
-  json_balance = TALER_json_from_amount (&balance);
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_OK,
-                                       "{s:o, s:o}",
-                                       "balance", json_balance,
-                                       "history", json_history);
-}
-
-
-/**
- * Send reserve status information to client with the
- * message that we have insufficient funds for the
- * requested /reserve/withdraw operation.
- *
- * @param connection connection to the client
- * @param rh reserve history to return
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_reserve_withdraw_insufficient_funds (struct MHD_Connection *connection,
-                                                        const struct TALER_MINTDB_ReserveHistory *rh)
-{
-  json_t *json_balance;
-  json_t *json_history;
-  struct TALER_Amount balance;
-
-  json_history = compile_reserve_history (rh,
-                                          &balance);
-  if (NULL == json_history)
-    return TMH_RESPONSE_reply_internal_error (connection,
-                                              "balance calculation failure");
-  json_balance = TALER_json_from_amount (&balance);
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_PAYMENT_REQUIRED,
-                                       "{s:s, s:o, s:o}",
-                                       "error", "Insufficient funds",
-                                       "balance", json_balance,
-                                       "history", json_history);
-}
-
-
-/**
- * Send blinded coin information to client.
- *
- * @param connection connection to the client
- * @param collectable blinded coin to return
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_reserve_withdraw_success (struct MHD_Connection *connection,
-                                          const struct TALER_MINTDB_CollectableBlindcoin *collectable)
-{
-  json_t *sig_json;
-
-  sig_json = TALER_json_from_rsa_signature (collectable->sig.rsa_signature);
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_OK,
-                                       "{s:o}",
-                                       "ev_sig", sig_json);
-}
-
-
-/**
- * Send a response for a failed "/refresh/melt" request.  The
- * transaction history of the given coin demonstrates that the
- * @a residual value of the coin is below the @a requested
- * contribution of the coin for the melt.  Thus, the mint
- * refuses the melt operation.
- *
- * @param connection the connection to send the response to
- * @param coin_pub public key of the coin
- * @param coin_value original value of the coin
- * @param tl transaction history for the coin
- * @param requested how much this coin was supposed to contribute, including fee
- * @param residual remaining value of the coin (after subtracting @a tl)
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_refresh_melt_insufficient_funds (struct MHD_Connection *connection,
-                                                    const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                                                    struct TALER_Amount coin_value,
-                                                    struct TALER_MINTDB_TransactionList *tl,
-                                                    struct TALER_Amount requested,
-                                                    struct TALER_Amount residual)
-{
-  json_t *history;
-
-  history = compile_transaction_history (tl);
-  if (NULL == history)
-    return TMH_RESPONSE_reply_internal_db_error (connection);
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_FORBIDDEN,
-                                       "{s:s, s:o, s:o, s:o, s:o, s:o}",
-                                       "error",
-                                       "insufficient funds",
-                                       "coin_pub",
-                                       TALER_json_from_data (coin_pub,
-                                                             sizeof (struct TALER_CoinSpendPublicKeyP)),
-                                       "original_value",
-                                       TALER_json_from_amount (&coin_value),
-                                       "residual_value",
-                                       TALER_json_from_amount (&residual),
-                                       "requested_value",
-                                       TALER_json_from_amount (&requested),
-                                       "history",
-                                       history);
-}
-
-
-/**
- * Send a response to a "/refresh/melt" request.
- *
- * @param connection the connection to send the response to
- * @param session_hash hash of the refresh session
- * @param noreveal_index which index will the client not have to reveal
- * @return a MHD status code
- */
-int
-TMH_RESPONSE_reply_refresh_melt_success (struct MHD_Connection *connection,
-                                         const struct GNUNET_HashCode *session_hash,
-                                         uint16_t noreveal_index)
-{
-  struct TALER_RefreshMeltConfirmationPS body;
-  struct TALER_MintPublicKeyP pub;
-  struct TALER_MintSignatureP sig;
-  json_t *sig_json;
-
-  body.purpose.size = htonl (sizeof (struct TALER_RefreshMeltConfirmationPS));
-  body.purpose.purpose = htonl (TALER_SIGNATURE_MINT_CONFIRM_MELT);
-  body.session_hash = *session_hash;
-  body.noreveal_index = htons (noreveal_index);
-  body.reserved = htons (0);
-  TMH_KS_sign (&body.purpose,
-               &pub,
-               &sig);
-  sig_json = TALER_json_from_data (&sig,
-                                   sizeof (sig));
-  GNUNET_assert (NULL != sig_json);
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_OK,
-                                       "{s:i, s:o, s:o}",
-                                       "noreveal_index", (int) noreveal_index,
-                                       "mint_sig", sig_json,
-                                       "mint_pub", TALER_json_from_data (&pub,
-                                                                         sizeof (pub)));
-}
-
-
-/**
- * Send a response for "/refresh/reveal".
- *
- * @param connection the connection to send the response to
- * @param num_newcoins number of new coins for which we reveal data
- * @param sigs array of @a num_newcoins signatures revealed
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_refresh_reveal_success (struct MHD_Connection *connection,
-                                           unsigned int num_newcoins,
-                                           const struct TALER_DenominationSignature *sigs)
-{
-  int newcoin_index;
-  json_t *root;
-  json_t *obj;
-  json_t *list;
-  int ret;
-
-  list = json_array ();
-  for (newcoin_index = 0; newcoin_index < num_newcoins; newcoin_index++)
-  {
-    obj = json_object ();
-    json_object_set_new (obj,
-			 "ev_sig",
-			 TALER_json_from_rsa_signature (sigs[newcoin_index].rsa_signature));
-    json_array_append_new (list,
-                           obj);
-  }
-  root = json_object ();
-  json_object_set_new (root,
-                       "ev_sigs",
-                       list);
-  ret = TMH_RESPONSE_reply_json (connection,
-                                 root,
-                                 MHD_HTTP_OK);
-  json_decref (root);
-  return ret;
-}
-
-
-/**
- * Send a response for a failed "/refresh/reveal", where the
- * revealed value(s) do not match the original commitment.
- *
- * @param connection the connection to send the response to
- * @param mc all information about the original commitment
- * @param off offset in the array of kappa-commitments where
- *            the missmatch was detected
- * @param j index of the coin for which the missmatch was
- *            detected
- * @param missmatch_object name of the object that was
- *            bogus (i.e. "transfer key").
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_refresh_reveal_missmatch (struct MHD_Connection *connection,
-                                             const struct TALER_MINTDB_MeltCommitment *mc,
-                                             unsigned int off,
-                                             unsigned int j,
-                                             const char *missmatch_object)
-{
-  json_t *info_old;
-  json_t *info_new;
-  json_t *info_commit;
-  json_t *info_links;
-  unsigned int i;
-  unsigned int k;
-
-  info_old = json_array ();
-  for (i=0;i<mc->num_oldcoins;i++)
-  {
-    const struct TALER_MINTDB_RefreshMelt *rm;
-    json_t *rm_json;
-
-    rm = &mc->melts[i];
-    rm_json = json_object ();
-    json_object_set_new (rm_json,
-                         "coin_sig",
-                         TALER_json_from_data (&rm->coin_sig,
-                                               sizeof (struct TALER_CoinSpendSignatureP)));
-    json_object_set_new (rm_json,
-                         "coin_pub",
-                         TALER_json_from_data (&rm->coin.coin_pub,
-                                               sizeof (struct TALER_CoinSpendPublicKeyP)));
-    json_object_set_new (rm_json,
-                         "melt_amount_with_fee",
-                         TALER_json_from_amount (&rm->amount_with_fee));
-    json_object_set_new (rm_json,
-                         "melt_fee",
-                         TALER_json_from_amount (&rm->melt_fee));
-    json_array_append_new (info_old,
-                           rm_json);
-  }
-  info_new = json_array ();
-  for (i=0;i<mc->num_newcoins;i++)
-  {
-    const struct TALER_DenominationPublicKey *pk;
-
-    pk = &mc->denom_pubs[i];
-    json_array_append_new (info_new,
-                           TALER_json_from_rsa_public_key (pk->rsa_public_key));
-
-  }
-  info_commit = json_array ();
-  info_links = json_array ();
-  for (k=0;k<TALER_CNC_KAPPA;k++)
-  {
-    json_t *info_commit_k;
-    json_t *info_link_k;
-
-    info_commit_k = json_array ();
-    for (i=0;i<mc->num_newcoins;i++)
-    {
-      const struct TALER_MINTDB_RefreshCommitCoin *cc;
-      json_t *cc_json;
-
-      cc = &mc->commit_coins[k][i];
-      cc_json = json_object ();
-      json_object_set_new (cc_json,
-                           "coin_ev",
-                           TALER_json_from_data (cc->coin_ev,
-                                                 cc->coin_ev_size));
-      json_object_set_new (cc_json,
-                           "coin_priv_enc",
-                           TALER_json_from_data (cc->refresh_link->coin_priv_enc,
-                                                 sizeof (struct TALER_CoinSpendPrivateKeyP)));
-      json_object_set_new (cc_json,
-                           "blinding_key_enc",
-                           TALER_json_from_data (cc->refresh_link->blinding_key_enc,
-                                                 cc->refresh_link->blinding_key_enc_size));
-
-      json_array_append_new (info_commit_k,
-                             cc_json);
-    }
-    json_array_append_new (info_commit,
-                           info_commit_k);
-    info_link_k = json_array ();
-    for (i=0;i<mc->num_oldcoins;i++)
-    {
-      const struct TALER_RefreshCommitLinkP *cl;
-      json_t *cl_json;
-
-      cl = &mc->commit_links[k][i];
-      cl_json = json_object ();
-      json_object_set_new (cl_json,
-                           "transfer_pub",
-                           TALER_json_from_data (&cl->transfer_pub,
-                                                 sizeof (struct TALER_TransferPublicKeyP)));
-      json_object_set_new (cl_json,
-                           "shared_secret_enc",
-                           TALER_json_from_data (&cl->shared_secret_enc,
-                                                 sizeof (struct TALER_EncryptedLinkSecretP)));
-      json_array_append_new (info_link_k,
-                             cl_json);
-    }
-    json_array_append_new (info_links,
-                           info_link_k);
-  }
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_CONFLICT,
-                                       "{s:s, s:i, s:i, s:o, s:o, s:o, s:o, s:s}",
-                                       "error", "commitment violation",
-                                       "offset", (int) off,
-                                       "index", (int) j,
-                                       "oldcoin_infos", info_old,
-                                       "newcoin_infos", info_new,
-                                       "commit_infos", info_commit,
-                                       "link_infos", info_links,
-                                       "object", missmatch_object);
-}
-
-
-/**
- * Send a response for "/refresh/link".
- *
- * @param connection the connection to send the response to
- * @param num_sessions number of sessions the coin was used in
- * @param sessions array of @a num_session entries with
- *                  information for each session
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_refresh_link_success (struct MHD_Connection *connection,
-                                         unsigned int num_sessions,
-                                         const struct TMH_RESPONSE_LinkSessionInfo *sessions)
-{
-  json_t *root;
-  json_t *mlist;
-  int res;
-  unsigned int i;
-
-  mlist = json_array ();
-  for (i=0;i<num_sessions;i++)
-  {
-    const struct TALER_MINTDB_LinkDataList *pos;
-    json_t *list = json_array ();
-
-    for (pos = sessions[i].ldl; NULL != pos; pos = pos->next)
-    {
-      json_t *obj;
-
-      obj = json_object ();
-      json_object_set_new (obj,
-                           "link_enc",
-                           TALER_json_from_data (pos->link_data_enc->coin_priv_enc,
-                                                 sizeof (struct TALER_CoinSpendPrivateKeyP) +
-                                                 pos->link_data_enc->blinding_key_enc_size));
-      json_object_set_new (obj,
-                           "denom_pub",
-                           TALER_json_from_rsa_public_key (pos->denom_pub.rsa_public_key));
-      json_object_set_new (obj,
-                           "ev_sig",
-                           TALER_json_from_rsa_signature (pos->ev_sig.rsa_signature));
-      json_array_append_new (list,
-                             obj);
-    }
-    root = json_object ();
-    json_object_set_new (root,
-                         "new_coins",
-                         list);
-    json_object_set_new (root,
-                         "transfer_pub",
-                         TALER_json_from_data (&sessions[i].transfer_pub,
-                                               sizeof (struct TALER_TransferPublicKeyP)));
-    json_object_set_new (root,
-                         "secret_enc",
-                         TALER_json_from_data (&sessions[i].shared_secret_enc,
-                                               sizeof (struct TALER_EncryptedLinkSecretP)));
-    json_array_append_new (mlist,
-                           root);
-  }
-  res = TMH_RESPONSE_reply_json (connection,
-                                 mlist,
-                                 MHD_HTTP_OK);
-  json_decref (mlist);
-  return res;
-}
-
-
-/**
- * A merchant asked for details about a deposit, but
- * we do not know anything about the deposit. Generate the
- * 404 reply.
- *
- * @param connection connection to the client
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_deposit_unknown (struct MHD_Connection *connection)
-{
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_NOT_FOUND,
-                                       "{s:s}",
-                                       "error", "Deposit unknown");
-}
-
-
-/**
- * A merchant asked for details about a deposit, but
- * we did not execute the deposit yet. Generate a 202 reply.
- *
- * @param connection connection to the client
- * @param planned_exec_time planned execution time
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_deposit_pending (struct MHD_Connection *connection,
-				    struct GNUNET_TIME_Absolute planned_exec_time)
-{
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_ACCEPTED,
-                                       "{s:o}",
-                                       "execution_time", TALER_json_from_abs (planned_exec_time));
-}
-
-
-/**
- * A merchant asked for details about a deposit.  Provide
- * them. Generates the 200 reply.
- *
- * @param connection connection to the client
- * @param h_contract hash of the contract
- * @param h_wire hash of wire account details
- * @param coin_pub public key of the coin
- * @param coin_contribution how much did the coin we asked about
- *        contribute to the total transfer value? (deposit value minus fee)
- * @param transaction_id merchant transaction identifier
- * @param wtid raw wire transfer identifier
- * @param exec_time execution time of the wire transfer
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_deposit_wtid (struct MHD_Connection *connection,
-                                 const struct GNUNET_HashCode *h_contract,
-                                 const struct GNUNET_HashCode *h_wire,
-                                 const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                                 const struct TALER_Amount *coin_contribution,
-                                 uint64_t transaction_id,
-				 const struct TALER_WireTransferIdentifierRawP *wtid,
-                                 struct GNUNET_TIME_Absolute exec_time)
-{
-  struct TALER_ConfirmWirePS cw;
-  struct TALER_MintPublicKeyP pub;
-  struct TALER_MintSignatureP sig;
-
-  cw.purpose.purpose = htonl (TALER_SIGNATURE_MINT_CONFIRM_WIRE);
-  cw.purpose.size = htonl (sizeof (struct TALER_ConfirmWirePS));
-  cw.h_wire = *h_wire;
-  cw.h_contract = *h_contract;
-  cw.wtid = *wtid;
-  cw.coin_pub = *coin_pub;
-  cw.transaction_id = GNUNET_htonll (transaction_id);
-  cw.execution_time = GNUNET_TIME_absolute_hton (exec_time);
-  TALER_amount_hton (&cw.coin_contribution,
-                     coin_contribution);
-  TMH_KS_sign (&cw.purpose,
-               &pub,
-               &sig);
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_OK,
-                                       "{s:o, s:o, s:o, s:o, s:o, s:o}",
-                                       "wtid", TALER_json_from_data (wtid,
-                                                                     sizeof (*wtid)),
-                                       "execution_time", TALER_json_from_abs (exec_time),
-                                       "coin_contribution", TALER_json_from_amount (coin_contribution),
-                                       "mint_sig", TALER_json_from_data (&sig,
-                                                                         sizeof (sig)),
-                                       "mint_pub", TALER_json_from_data (&pub,
-                                                                         sizeof (pub)));
-}
-
-
-/**
- * A merchant asked for transaction details about a wire transfer.
- * Provide them. Generates the 200 reply.
- *
- * @param connection connection to the client
- * @param total total amount that was transferred
- * @param merchant_pub public key of the merchant
- * @param h_wire destination account
- * @param deposits details about the combined deposits
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_wire_deposit_details (struct MHD_Connection *connection,
-                                         const struct TALER_Amount *total,
-                                         const struct TALER_MerchantPublicKeyP *merchant_pub,
-                                         const struct GNUNET_HashCode *h_wire,
-                                         json_t *deposits)
-{
-  /* FIXME: #4135: signing not implemented here */
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_OK,
-                                       "{s:o, s:o, s:o, s:o}",
-                                       "total", TALER_json_from_amount (total),
-                                       "merchant_pub", TALER_json_from_data (merchant_pub,
-                                                                             sizeof (struct TALER_MerchantPublicKeyP)),
-                                       "h_wire", TALER_json_from_data (h_wire,
-                                                                       sizeof (struct GNUNET_HashCode)),
-                                       "deposits", deposits);
-}
-
-
-/* end of taler-mint-httpd_responses.c */
diff --git a/src/mint/taler-mint-httpd_responses.h b/src/mint/taler-mint-httpd_responses.h
deleted file mode 100644
index a0396c8a1..000000000
--- a/src/mint/taler-mint-httpd_responses.h
+++ /dev/null
@@ -1,469 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-
-/**
- * @file taler-mint-httpd_responses.h
- * @brief API for generating the various replies of the mint; these
- *        functions are called TMH_RESPONSE_reply_ and they generate
- *        and queue MHD response objects for a given connection.
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Christian Grothoff
- */
-#ifndef TALER_MINT_HTTPD_RESPONSES_H
-#define TALER_MINT_HTTPD_RESPONSES_H
-#include <gnunet/gnunet_util_lib.h>
-#include <jansson.h>
-#include <microhttpd.h>
-#include <pthread.h>
-#include "taler-mint-httpd.h"
-#include "taler-mint-httpd_db.h"
-
-/**
- * Add headers we want to return in every response.
- * Useful for testing, like if we want to always close
- * connections.
- *
- * @param response response to modify
- */
-void
-TMH_RESPONSE_add_global_headers (struct MHD_Response *response);
-
-
-/**
- * Send JSON object as response.
- *
- * @param connection the MHD connection
- * @param json the json object
- * @param response_code the http response code
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_json (struct MHD_Connection *connection,
-                         const json_t *json,
-                         unsigned int response_code);
-
-
-/**
- * Function to call to handle the request by building a JSON
- * reply from a format string and varargs.
- *
- * @param connection the MHD connection to handle
- * @param response_code HTTP response code to use
- * @param fmt format string for pack
- * @param ... varargs
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_json_pack (struct MHD_Connection *connection,
-                              unsigned int response_code,
-                              const char *fmt,
-                              ...);
-
-
-/**
- * Send a response indicating an invalid signature.
- *
- * @param connection the MHD connection to use
- * @param param_name the parameter that is invalid
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_signature_invalid (struct MHD_Connection *connection,
-                                      const char *param_name);
-
-
-/**
- * Send a response indicating an invalid argument.
- *
- * @param connection the MHD connection to use
- * @param param_name the parameter that is invalid
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_arg_invalid (struct MHD_Connection *connection,
-                                const char *param_name);
-
-
-/**
- * Send a response indicating an argument refering to a
- * resource unknown to the mint (i.e. unknown reserve or
- * denomination key).
- *
- * @param connection the MHD connection to use
- * @param param_name the parameter that is invalid
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_arg_unknown (struct MHD_Connection *connection,
-                                const char *param_name);
-
-
-/**
- * Send a response indicating a missing argument.
- *
- * @param connection the MHD connection to use
- * @param param_name the parameter that is missing
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_arg_missing (struct MHD_Connection *connection,
-                                const char *param_name);
-
-
-/**
- * Send a response indicating permission denied.
- *
- * @param connection the MHD connection to use
- * @param hint hint about why access was denied
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_permission_denied (struct MHD_Connection *connection,
-                                      const char *hint);
-
-
-/**
- * Send a response indicating an internal error.
- *
- * @param connection the MHD connection to use
- * @param hint hint about the internal error's nature
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_internal_error (struct MHD_Connection *connection,
-                                   const char *hint);
-
-
-/**
- * Send a response indicating an external error.
- *
- * @param connection the MHD connection to use
- * @param hint hint about the error's nature
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_external_error (struct MHD_Connection *connection,
-                                   const char *hint);
-
-
-/**
- * Send a response indicating an error committing a
- * transaction (concurrent interference).
- *
- * @param connection the MHD connection to use
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_commit_error (struct MHD_Connection *connection);
-
-
-/**
- * Send a response indicating a failure to talk to the Mint's
- * database.
- *
- * @param connection the MHD connection to use
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_internal_db_error (struct MHD_Connection *connection);
-
-
-/**
- * Send a response indicating that the request was too big.
- *
- * @param connection the MHD connection to use
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_request_too_large (struct MHD_Connection *connection);
-
-
-/**
- * Send a response indicating that the JSON was malformed.
- *
- * @param connection the MHD connection to use
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_invalid_json (struct MHD_Connection *connection);
-
-
-/**
- * Send confirmation of deposit success to client. This function
- * will create a signed message affirming the given information
- * and return it to the client.  By this, the mint affirms that
- * the coin had sufficient (residual) value for the specified
- * transaction and that it will execute the requested deposit
- * operation with the given wiring details.
- *
- * @param connection connection to the client
- * @param coin_pub public key of the coin
- * @param h_wire hash of wire details
- * @param h_contract hash of contract details
- * @param transaction_id transaction ID
- * @param timestamp client's timestamp
- * @param refund_deadline until when this deposit be refunded
- * @param merchant merchant public key
- * @param amount_without_fee fraction of coin value to deposit (without fee)
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_deposit_success (struct MHD_Connection *connection,
-                                    const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                                    const struct GNUNET_HashCode *h_wire,
-                                    const struct GNUNET_HashCode *h_contract,
-                                    uint64_t transaction_id,
-                                    struct GNUNET_TIME_Absolute timestamp,
-                                    struct GNUNET_TIME_Absolute refund_deadline,
-                                    const struct TALER_MerchantPublicKeyP *merchant,
-                                    const struct TALER_Amount *amount_without_fee);
-
-
-/**
- * Send proof that a /deposit request is invalid to client.  This
- * function will create a message with all of the operations affecting
- * the coin that demonstrate that the coin has insufficient value.
- *
- * @param connection connection to the client
- * @param tl transaction list to use to build reply
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_deposit_insufficient_funds (struct MHD_Connection *connection,
-                                               const struct TALER_MINTDB_TransactionList *tl);
-
-
-/**
- * A merchant asked for details about a deposit, but
- * we do not know anything about the deposit. Generate the
- * 404 reply.
- *
- * @param connection connection to the client
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_deposit_unknown (struct MHD_Connection *connection);
-
-
-/**
- * A merchant asked for details about a deposit, but
- * we did not execute the deposit yet. Generate a 202 reply.
- *
- * @param connection connection to the client
- * @param planned_exec_time planned execution time
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_deposit_pending (struct MHD_Connection *connection,
-				    struct GNUNET_TIME_Absolute planned_exec_time);
-
-
-/**
- * A merchant asked for details about a deposit.  Provide
- * them. Generates the 200 reply.
- *
- * @param connection connection to the client
- * @param h_contract hash of the contract
- * @param h_wire hash of wire account details
- * @param coin_pub public key of the coin
- * @param coin_contribution contribution of this coin to the total amount transferred
- * @param transaction_id merchant transaction identifier
- * @param wtid raw wire transfer identifier
- * @param exec_time execution time of the wire transfer
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_deposit_wtid (struct MHD_Connection *connection,
-                                 const struct GNUNET_HashCode *h_contract,
-                                 const struct GNUNET_HashCode *h_wire,
-                                 const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                                 const struct TALER_Amount *coin_contribution,
-                                 uint64_t transaction_id,
-				 const struct TALER_WireTransferIdentifierRawP *wtid,
-                                 struct GNUNET_TIME_Absolute exec_time);
-
-
-/**
- * A merchant asked for transaction details about a wire transfer.
- * Provide them. Generates the 200 reply.
- *
- * @param connection connection to the client
- * @param total total amount that was transferred
- * @param merchant_pub public key of the merchant
- * @param h_wire destination account
- * @param deposits details about the combined deposits
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_wire_deposit_details (struct MHD_Connection *connection,
-                                         const struct TALER_Amount *total,
-                                         const struct TALER_MerchantPublicKeyP *merchant_pub,
-                                         const struct GNUNET_HashCode *h_wire,
-                                         json_t *deposits);
-
-
-/**
- * Send reserve status information to client.
- *
- * @param connection connection to the client
- * @param rh reserve history to return
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_reserve_status_success (struct MHD_Connection *connection,
-                                           const struct TALER_MINTDB_ReserveHistory *rh);
-
-
-/**
- * Send reserve status information to client with the
- * message that we have insufficient funds for the
- * requested /reserve/withdraw operation.
- *
- * @param connection connection to the client
- * @param rh reserve history to return
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_reserve_withdraw_insufficient_funds (struct MHD_Connection *connection,
-                                                        const struct TALER_MINTDB_ReserveHistory *rh);
-
-
-/**
- * Send blinded coin information to client.
- *
- * @param connection connection to the client
- * @param collectable blinded coin to return
- * @return MHD result code
- */
-int
-TMH_RESPONSE_reply_reserve_withdraw_success (struct MHD_Connection *connection,
-                                             const struct TALER_MINTDB_CollectableBlindcoin *collectable);
-
-
-/**
- * Send a confirmation response to a "/refresh/melt" request.
- *
- * @param connection the connection to send the response to
- * @param session_hash hash of the refresh session
- * @param noreveal_index which index will the client not have to reveal
- * @return a MHD status code
- */
-int
-TMH_RESPONSE_reply_refresh_melt_success (struct MHD_Connection *connection,
-                                         const struct GNUNET_HashCode *session_hash,
-                                         uint16_t noreveal_index);
-
-
-/**
- * Send a response for a failed "/refresh/melt" request.  The
- * transaction history of the given coin demonstrates that the
- * @a residual value of the coin is below the @a requested
- * contribution of the coin for the melt.  Thus, the mint
- * refuses the melt operation.
- *
- * @param connection the connection to send the response to
- * @param coin_pub public key of the coin
- * @param coin_value original value of the coin
- * @param tl transaction history for the coin
- * @param requested how much this coin was supposed to contribute
- * @param residual remaining value of the coin (after subtracting @a tl)
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_refresh_melt_insufficient_funds (struct MHD_Connection *connection,
-                                                    const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                                                    struct TALER_Amount coin_value,
-                                                    struct TALER_MINTDB_TransactionList *tl,
-                                                    struct TALER_Amount requested,
-                                                    struct TALER_Amount residual);
-
-
-/**
- * Send a response for "/refresh/reveal".
- *
- * @param connection the connection to send the response to
- * @param num_newcoins number of new coins for which we reveal data
- * @param sigs array of @a num_newcoins signatures revealed
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_refresh_reveal_success (struct MHD_Connection *connection,
-                                           unsigned int num_newcoins,
-                                           const struct TALER_DenominationSignature *sigs);
-
-
-/**
- * Send a response for a failed "/refresh/reveal", where the
- * revealed value(s) do not match the original commitment.
- *
- * @param connection the connection to send the response to
- * @param mc all information about the original commitment
- * @param off offset in the array of kappa-commitments where
- *            the missmatch was detected
- * @param j index of the coin for which the missmatch was
- *            detected
- * @param missmatch_object name of the object that was
- *            bogus (i.e. "transfer key").
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_refresh_reveal_missmatch (struct MHD_Connection *connection,
-                                             const struct TALER_MINTDB_MeltCommitment *mc,
-                                             unsigned int off,
-                                             unsigned int j,
-                                             const char *missmatch_object);
-
-
-/**
- * @brief Information for each session a coin was melted into.
- */
-struct TMH_RESPONSE_LinkSessionInfo
-{
-  /**
-   * Transfer public key of the coin.
-   */
-  struct TALER_TransferPublicKeyP transfer_pub;
-
-  /**
-   * Encrypted shared secret for decrypting the transfer secrets.
-   */
-  struct TALER_EncryptedLinkSecretP shared_secret_enc;
-
-  /**
-   * Linked data of coins being created in the session.
-   */
-  struct TALER_MINTDB_LinkDataList *ldl;
-
-};
-
-
-/**
- * Send a response for "/refresh/link".
- *
- * @param connection the connection to send the response to
- * @param num_sessions number of sessions the coin was used in
- * @param sessions array of @a num_session entries with
- *                  information for each session
- * @return a MHD result code
- */
-int
-TMH_RESPONSE_reply_refresh_link_success (struct MHD_Connection *connection,
-                                         unsigned int num_sessions,
-                                         const struct TMH_RESPONSE_LinkSessionInfo *sessions);
-
-
-#endif
diff --git a/src/mint/taler-mint-httpd_test.c b/src/mint/taler-mint-httpd_test.c
deleted file mode 100644
index b894854f3..000000000
--- a/src/mint/taler-mint-httpd_test.c
+++ /dev/null
@@ -1,621 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_test.c
- * @brief Handle /test requests; parses the POST and JSON and
- *        checks that the client is binary-compatible
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <gnunet/gnunet_util_lib.h>
-#include <jansson.h>
-#include <microhttpd.h>
-#include "taler_signatures.h"
-#include "taler-mint-httpd_test.h"
-#include "taler-mint-httpd_parsing.h"
-#include "taler-mint-httpd_responses.h"
-
-
-/**
- * Private key the test module uses for signing.
- */
-static struct GNUNET_CRYPTO_rsa_PrivateKey *rsa_pk;
-
-
-/**
- * Handle a "/test/base32" request.  Parses the JSON in the post, runs
- * the Crockford Base32 decoder on the "input" field in the JSON,
- * hashes the result and sends the hashed value back as a JSON
- * string with in Base32 Crockford encoding.  Thus, this API
- * allows testing the hashing and Crockford encoding/decoding
- * functions.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_TEST_handler_test_base32 (struct TMH_RequestHandler *rh,
-			      struct MHD_Connection *connection,
-			      void **connection_cls,
-			      const char *upload_data,
-			      size_t *upload_data_size)
-{
-  json_t *json;
-  int res;
-  void *in_ptr;
-  size_t in_ptr_size;
-  struct GNUNET_HashCode hc;
-  struct TMH_PARSE_FieldSpecification spec[] = {
-    TMH_PARSE_member_variable ("input", &in_ptr, &in_ptr_size),
-    TMH_PARSE_MEMBER_END
-  };
-
-  res = TMH_PARSE_post_json (connection,
-                             connection_cls,
-                             upload_data,
-                             upload_data_size,
-                             &json);
-  if (GNUNET_SYSERR == res)
-    return MHD_NO;
-  if ( (GNUNET_NO == res) || (NULL == json) )
-    return MHD_YES;
-  res = TMH_PARSE_json_data (connection,
-			     json,
-			     spec);
-  if (GNUNET_YES != res)
-    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
-  GNUNET_CRYPTO_hash (in_ptr,
-		      in_ptr_size,
-		      &hc);
-  TMH_PARSE_release_data (spec);
-  json_decref (json);
-  return TMH_RESPONSE_reply_json_pack (connection,
-				       MHD_HTTP_OK,
-				       "{s:o}",
-				       "output",
-				       TALER_json_from_data (&hc, sizeof (struct GNUNET_HashCode)));
-}
-
-
-/**
- * Handle a "/test/encrypt" request.  Parses the JSON in the post,
- * runs the Crockford Base32 decoder on the "input" field in the JSON,
- * and encrypts the result with a shared secret derived using the HKDF
- * function with salt "skey" and IV derived with salt "iv" of the
- * Crockford Base32-encoded "key_hash" field in the JSON.  The
- * symmetric encryption is the AES/Twofish double-encryption used in
- * Taler/GNUnet.  The resulting ciphertext is returned as a Crockford
- * Base32 encoded JSON string.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_TEST_handler_test_encrypt (struct TMH_RequestHandler *rh,
-			       struct MHD_Connection *connection,
-			       void **connection_cls,
-			       const char *upload_data,
-			       size_t *upload_data_size)
-{
-  json_t *json;
-  int res;
-  struct GNUNET_HashCode key;
-  struct GNUNET_CRYPTO_SymmetricInitializationVector iv;
-  struct GNUNET_CRYPTO_SymmetricSessionKey skey;
-  void *in_ptr;
-  size_t in_ptr_size;
-  struct TMH_PARSE_FieldSpecification spec[] = {
-    TMH_PARSE_member_variable ("input", &in_ptr, &in_ptr_size),
-    TMH_PARSE_member_fixed ("key_hash", &key),
-    TMH_PARSE_MEMBER_END
-  };
-  char *out;
-
-  res = TMH_PARSE_post_json (connection,
-                             connection_cls,
-                             upload_data,
-                             upload_data_size,
-                             &json);
-  if (GNUNET_SYSERR == res)
-    return MHD_NO;
-  if ( (GNUNET_NO == res) || (NULL == json) )
-    return MHD_YES;
-  res = TMH_PARSE_json_data (connection,
-			     json,
-			     spec);
-  json_decref (json);
-  if (GNUNET_YES != res)
-    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
-  GNUNET_assert (GNUNET_YES ==
-		 GNUNET_CRYPTO_kdf (&skey, sizeof (struct GNUNET_CRYPTO_SymmetricSessionKey),
-				    "skey", strlen ("skey"),
-				    &key, sizeof (key),
-				    NULL, 0));
-  GNUNET_assert (GNUNET_YES ==
-		 GNUNET_CRYPTO_kdf (&iv, sizeof (struct GNUNET_CRYPTO_SymmetricInitializationVector),
-				    "iv", strlen ("iv"),
-				    &key, sizeof (key),
-				    NULL, 0));
-  out = GNUNET_malloc (in_ptr_size);
-  GNUNET_break (in_ptr_size ==
-		GNUNET_CRYPTO_symmetric_encrypt (in_ptr,
-						 in_ptr_size,
-						 &skey,
-						 &iv,
-						 out));
-  json = TALER_json_from_data (out,
-			       in_ptr_size);
-  GNUNET_free (out);
-  TMH_PARSE_release_data (spec);
-  return TMH_RESPONSE_reply_json_pack (connection,
-				       MHD_HTTP_OK,
-				       "{s:o}",
-				       "output",
-				       json);
-}
-
-
-/**
- * Handle a "/test/hkdf" request.  Parses the JSON in the post, runs
- * the Crockford Base32 decoder on the "input" field in the JSON,
- * computes `HKDF(input, "salty")` and sends the result back as a JSON
- * string with in Base32 Crockford encoding.  Thus, this API allows
- * testing the use of the (H)KDF.  Note that the test fixes the
- * input and output sizes and the salt (and the hash functions used
- * by the HKDF), so this is only useful to test the HKDF in the
- * same way it will be used within Taler/GNUnet.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_TEST_handler_test_hkdf (struct TMH_RequestHandler *rh,
-			    struct MHD_Connection *connection,
-			    void **connection_cls,
-			    const char *upload_data,
-			    size_t *upload_data_size)
-{
-  json_t *json;
-  int res;
-  struct GNUNET_HashCode hc;
-  void *in_ptr;
-  size_t in_ptr_size;
-  struct TMH_PARSE_FieldSpecification spec[] = {
-    TMH_PARSE_member_variable ("input", &in_ptr, &in_ptr_size),
-    TMH_PARSE_MEMBER_END
-  };
-
-  res = TMH_PARSE_post_json (connection,
-                             connection_cls,
-                             upload_data,
-                             upload_data_size,
-                             &json);
-  if (GNUNET_SYSERR == res)
-    return MHD_NO;
-  if ( (GNUNET_NO == res) || (NULL == json) )
-    return MHD_YES;
-  res = TMH_PARSE_json_data (connection,
-			     json,
-			     spec);
-  json_decref (json);
-  if (GNUNET_YES != res)
-    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
-  GNUNET_CRYPTO_kdf (&hc, sizeof (hc),
-		     "salty", strlen ("salty"),
-		     in_ptr,
-		     in_ptr_size,
-		     NULL, 0);
-  TMH_PARSE_release_data (spec);
-  json = TALER_json_from_data (&hc,
-			       sizeof (struct GNUNET_HashCode));
-  return TMH_RESPONSE_reply_json_pack (connection,
-				       MHD_HTTP_OK,
-				       "{s:o}",
-				       "output",
-				       json);
-}
-
-
-/**
- * Handle a "/test/ecdhe" request.  Parses the JSON in the post, which
- * must contain a "ecdhe_pub" with a public key and an "ecdhe_priv"
- * with a private key.  The reply is the resulting JSON is an object
- * with the field "ecdh_hash" containing a Crockford Base32-encoded
- * string representing the hash derived via ECDH of the two keys.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_TEST_handler_test_ecdhe (struct TMH_RequestHandler *rh,
-			     struct MHD_Connection *connection,
-			     void **connection_cls,
-			     const char *upload_data,
-			     size_t *upload_data_size)
-{
-  json_t *json;
-  int res;
-  struct GNUNET_CRYPTO_EcdhePublicKey pub;
-  struct GNUNET_CRYPTO_EcdhePrivateKey priv;
-  struct GNUNET_HashCode hc;
-  struct TMH_PARSE_FieldSpecification spec[] = {
-    TMH_PARSE_member_fixed ("ecdhe_pub", &pub),
-    TMH_PARSE_member_fixed ("ecdhe_priv", &priv),
-    TMH_PARSE_MEMBER_END
-  };
-
-  res = TMH_PARSE_post_json (connection,
-                             connection_cls,
-                             upload_data,
-                             upload_data_size,
-                             &json);
-  if (GNUNET_SYSERR == res)
-    return MHD_NO;
-  if ( (GNUNET_NO == res) || (NULL == json) )
-    return MHD_YES;
-  res = TMH_PARSE_json_data (connection,
-			     json,
-			     spec);
-  json_decref (json);
-  if (GNUNET_YES != res)
-    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_ecc_ecdh (&priv,
-			      &pub,
-			      &hc))
-  {
-    TMH_PARSE_release_data (spec);
-    return TMH_RESPONSE_reply_internal_error (connection,
-					      "Failed to perform ECDH");
-  }
-  TMH_PARSE_release_data (spec);
-  return TMH_RESPONSE_reply_json_pack (connection,
-				       MHD_HTTP_OK,
-				       "{s:o}",
-				       "ecdh_hash",
-				       TALER_json_from_data (&hc,
-							     sizeof (hc)));
-}
-
-
-/**
- * Handle a "/test/eddsa" request.  Parses the JSON in the post,
- * which must contain a "eddsa_pub" with a public key and an
- *"eddsa_sig" with the corresponding signature for a purpose
- * of #TALER_SIGNATURE_CLIENT_TEST_EDDSA.  If the signature is
- * valid, a reply with a #TALER_SIGNATURE_MINT_TEST_EDDSA is
- * returned using the same JSON format.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_TEST_handler_test_eddsa (struct TMH_RequestHandler *rh,
-			     struct MHD_Connection *connection,
-			     void **connection_cls,
-			     const char *upload_data,
-			     size_t *upload_data_size)
-{
-  json_t *json;
-  int res;
-  struct GNUNET_CRYPTO_EddsaPublicKey pub;
-  struct GNUNET_CRYPTO_EddsaSignature sig;
-  struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
-  struct TMH_PARSE_FieldSpecification spec[] = {
-    TMH_PARSE_member_fixed ("eddsa_pub", &pub),
-    TMH_PARSE_member_fixed ("eddsa_sig", &sig),
-    TMH_PARSE_MEMBER_END
-  };
-  struct GNUNET_CRYPTO_EddsaPrivateKey *pk;
-
-  res = TMH_PARSE_post_json (connection,
-                             connection_cls,
-                             upload_data,
-                             upload_data_size,
-                             &json);
-  if (GNUNET_SYSERR == res)
-    return MHD_NO;
-  if ( (GNUNET_NO == res) || (NULL == json) )
-    return MHD_YES;
-  res = TMH_PARSE_json_data (connection,
-			     json,
-			     spec);
-  json_decref (json);
-  if (GNUNET_YES != res)
-    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
-  purpose.size = htonl (sizeof (struct GNUNET_CRYPTO_EccSignaturePurpose));
-  purpose.purpose = htonl (TALER_SIGNATURE_CLIENT_TEST_EDDSA);
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_CLIENT_TEST_EDDSA,
-				  &purpose,
-				  &sig,
-				  &pub))
-  {
-    TMH_PARSE_release_data (spec);
-    return TMH_RESPONSE_reply_signature_invalid (connection,
-						 "eddsa_sig");
-  }
-  TMH_PARSE_release_data (spec);
-  pk = GNUNET_CRYPTO_eddsa_key_create ();
-  purpose.purpose = htonl (TALER_SIGNATURE_MINT_TEST_EDDSA);
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_eddsa_sign (pk,
-				&purpose,
-				&sig))
-  {
-    GNUNET_free (pk);
-    return TMH_RESPONSE_reply_internal_error (connection,
-					      "Failed to EdDSA-sign");
-  }
-  GNUNET_CRYPTO_eddsa_key_get_public (pk,
-				      &pub);
-  GNUNET_free (pk);
-  return TMH_RESPONSE_reply_json_pack (connection,
-				       MHD_HTTP_OK,
-				       "{s:o, s:o}",
-				       "eddsa_pub",
-				       TALER_json_from_data (&pub,
-							     sizeof (pub)),
-				       "eddsa_sig",
-				       TALER_json_from_data (&sig,
-							     sizeof (sig)));
-}
-
-
-/**
- * Handle a "/test/rsa/get" request.  Returns the RSA public key
- * ("rsa_pub") which is used for signing in "/test/rsa/sign".
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_TEST_handler_test_rsa_get (struct TMH_RequestHandler *rh,
-                               struct MHD_Connection *connection,
-                               void **connection_cls,
-                               const char *upload_data,
-                               size_t *upload_data_size)
-{
-  int res;
-  struct GNUNET_CRYPTO_rsa_PublicKey *pub;
-
-  if (NULL == rsa_pk)
-    rsa_pk = GNUNET_CRYPTO_rsa_private_key_create (1024);
-  if (NULL == rsa_pk)
-  {
-    GNUNET_break (0);
-    return TMH_RESPONSE_reply_internal_error (connection,
-					      "Failed to create RSA key");
-  }
-  pub = GNUNET_CRYPTO_rsa_private_key_get_public (rsa_pk);
-  if (NULL == pub)
-  {
-    GNUNET_break (0);
-    return TMH_RESPONSE_reply_internal_error (connection,
-					      "Failed to get public RSA key");
-  }
-  res = TMH_RESPONSE_reply_json_pack (connection,
-				      MHD_HTTP_OK,
-				      "{s:o}",
-				      "rsa_pub",
-				      TALER_json_from_rsa_public_key (pub));
-  GNUNET_CRYPTO_rsa_public_key_free (pub);
-  return res;
-}
-
-
-/**
- * Handle a "/test/rsa/sign" request.  Parses the JSON in the post, which
- * must contain an "blind_ev" blinded value.  A a blinded signature
- * ("rsa_blind_sig") is returned.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_TEST_handler_test_rsa_sign (struct TMH_RequestHandler *rh,
-                                struct MHD_Connection *connection,
-                                void **connection_cls,
-                                const char *upload_data,
-                                size_t *upload_data_size)
-{
-  json_t *json;
-  int res;
-  struct GNUNET_CRYPTO_rsa_Signature *sig;
-  void *in_ptr;
-  size_t in_ptr_size;
-  struct TMH_PARSE_FieldSpecification spec[] = {
-    TMH_PARSE_member_variable ("blind_ev", &in_ptr, &in_ptr_size),
-    TMH_PARSE_MEMBER_END
-  };
-
-  res = TMH_PARSE_post_json (connection,
-                             connection_cls,
-                             upload_data,
-                             upload_data_size,
-                             &json);
-  if (GNUNET_SYSERR == res)
-    return MHD_NO;
-  if ( (GNUNET_NO == res) || (NULL == json) )
-    return MHD_YES;
-  res = TMH_PARSE_json_data (connection,
-			     json,
-			     spec);
-  json_decref (json);
-  if (GNUNET_YES != res)
-    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
-  if (NULL == rsa_pk)
-    rsa_pk = GNUNET_CRYPTO_rsa_private_key_create (1024);
-  if (NULL == rsa_pk)
-  {
-    GNUNET_break (0);
-    TMH_PARSE_release_data (spec);
-    return TMH_RESPONSE_reply_internal_error (connection,
-					      "Failed to create RSA key");
-  }
-  sig = GNUNET_CRYPTO_rsa_sign (rsa_pk,
-				in_ptr,
-				in_ptr_size);
-  if (NULL == sig)
-  {
-    GNUNET_break (0);
-    TMH_PARSE_release_data (spec);
-    return TMH_RESPONSE_reply_internal_error (connection,
-					      "Failed to RSA-sign");
-  }
-  TMH_PARSE_release_data (spec);
-  res = TMH_RESPONSE_reply_json_pack (connection,
-				      MHD_HTTP_OK,
-				      "{s:o}",
-				      "rsa_blind_sig",
-				      TALER_json_from_rsa_signature (sig));
-  GNUNET_CRYPTO_rsa_signature_free (sig);
-  return res;
-}
-
-
-/**
- * Handle a "/test/transfer" request.  Parses the JSON in the post,
- * which must contain a "secret_enc" with the encrypted link secret,
- * a "trans_priv" with the transfer private key, a "coin_pub" with
- * a coin public key.  A reply with the decrypted "secret" is
- * returned.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_TEST_handler_test_transfer (struct TMH_RequestHandler *rh,
-				struct MHD_Connection *connection,
-				void **connection_cls,
-				const char *upload_data,
-				size_t *upload_data_size)
-{
-  json_t *json;
-  int res;
-  struct TALER_EncryptedLinkSecretP secret_enc;
-  struct TALER_TransferPrivateKeyP trans_priv;
-  struct TALER_CoinSpendPublicKeyP coin_pub;
-  struct TMH_PARSE_FieldSpecification spec[] = {
-    TMH_PARSE_member_fixed ("secret_enc", &secret_enc),
-    TMH_PARSE_member_fixed ("trans_priv", &trans_priv),
-    TMH_PARSE_member_fixed ("coin_pub", &coin_pub),
-    TMH_PARSE_MEMBER_END
-  };
-  struct TALER_LinkSecretP secret;
-
-  res = TMH_PARSE_post_json (connection,
-                             connection_cls,
-                             upload_data,
-                             upload_data_size,
-                             &json);
-  if (GNUNET_SYSERR == res)
-    return MHD_NO;
-  if ( (GNUNET_NO == res) || (NULL == json) )
-    return MHD_YES;
-  res = TMH_PARSE_json_data (connection,
-			     json,
-			     spec);
-  json_decref (json);
-  if (GNUNET_YES != res)
-    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
-  if (GNUNET_OK !=
-      TALER_link_decrypt_secret (&secret_enc,
-				 &trans_priv,
-				 &coin_pub,
-				 &secret))
-  {
-    TMH_PARSE_release_data (spec);
-    return TMH_RESPONSE_reply_internal_error (connection,
-					      "Failed to decrypt secret");
-  }
-  return TMH_RESPONSE_reply_json_pack (connection,
-				       MHD_HTTP_OK,
-				       "{s:o}",
-				       "secret",
-				       TALER_json_from_data (&secret,
-							     sizeof (secret)));
-}
-
-
-/**
- * Handle a "/test" request.  Parses the JSON in the post.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_TEST_handler_test (struct TMH_RequestHandler *rh,
-		       struct MHD_Connection *connection,
-		       void **connection_cls,
-		       const char *upload_data,
-		       size_t *upload_data_size)
-{
-  json_t *json;
-  int res;
-
-  res = TMH_PARSE_post_json (connection,
-                             connection_cls,
-                             upload_data,
-                             upload_data_size,
-                             &json);
-  if (GNUNET_SYSERR == res)
-    return MHD_NO;
-  if ( (GNUNET_NO == res) || (NULL == json) )
-    return MHD_YES;
-
-  json_decref (json);
-  return MHD_NO;
-}
-
-
-/* end of taler-mint-httpd_test.c */
diff --git a/src/mint/taler-mint-httpd_test.h b/src/mint/taler-mint-httpd_test.h
deleted file mode 100644
index 33844aab1..000000000
--- a/src/mint/taler-mint-httpd_test.h
+++ /dev/null
@@ -1,225 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_test.h
- * @brief Handle /test requests
- * @author Christian Grothoff
- */
-#ifndef TALER_MINT_HTTPD_TEST_H
-#define TALER_MINT_HTTPD_TEST_H
-
-#include <gnunet/gnunet_util_lib.h>
-#include <microhttpd.h>
-#include "taler-mint-httpd.h"
-
-
-/**
- * Handle a "/test/base32" request.  Parses the JSON in the post, runs
- * the Crockford Base32 decoder on the "input" field in the JSON,
- * hashes the result and sends the hashed value back as a JSON
- * string with in Base32 Crockford encoding.  Thus, this API
- * allows testing the hashing and Crockford encoding/decoding
- * functions.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_TEST_handler_test_base32 (struct TMH_RequestHandler *rh,
-			      struct MHD_Connection *connection,
-			      void **connection_cls,
-			      const char *upload_data,
-			      size_t *upload_data_size);
-
-
-/**
- * Handle a "/test/encrypt" request.  Parses the JSON in the post,
- * runs the Crockford Base32 decoder on the "input" field in the JSON,
- * and encrypts the result with a shared secret derived using the HKDF
- * function with salt "skey" and IV derived with salt "iv" of the
- * Crockford Base32-encoded "key_hash" field in the JSON.  The
- * symmetric encryption is the AES/Twofish double-encryption used in
- * Taler/GNUnet.  The resulting ciphertext is returned as a Crockford
- * Base32 encoded JSON string.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_TEST_handler_test_encrypt (struct TMH_RequestHandler *rh,
-			       struct MHD_Connection *connection,
-			       void **connection_cls,
-			       const char *upload_data,
-			       size_t *upload_data_size);
-
-
-/**
- * Handle a "/test/hkdf" request.  Parses the JSON in the post, runs
- * the Crockford Base32 decoder on the "input" field in the JSON,
- * computes `HKDF(input, "salty")` and sends the result back as a JSON
- * string with in Base32 Crockford encoding.  Thus, this API allows
- * testing the use of the (H)KDF.  Note that the test fixes the
- * input and output sizes and the salt (and the hash functions used
- * by the HKDF), so this is only useful to test the HKDF in the
- * same way it will be used within Taler/GNUnet.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_TEST_handler_test_hkdf (struct TMH_RequestHandler *rh,
-			    struct MHD_Connection *connection,
-			    void **connection_cls,
-			    const char *upload_data,
-			    size_t *upload_data_size);
-
-
-/**
- * Handle a "/test/ecdhe" request.  Parses the JSON in the post, which
- * must contain a "ecdhe_pub" with a public key and an "ecdhe_priv"
- * with a private key.  The reply is the resulting JSON is an object
- * with the field "ecdh_hash" containing a Crockford Base32-encoded
- * string representing the hash derived via ECDH of the two keys.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_TEST_handler_test_ecdhe (struct TMH_RequestHandler *rh,
-			     struct MHD_Connection *connection,
-			     void **connection_cls,
-			     const char *upload_data,
-			     size_t *upload_data_size);
-
-
-/**
- * Handle a "/test/eddsa" request.  Parses the JSON in the post,
- * which must contain a "eddsa_pub" with a public key and an
- *"ecdsa_sig" with the corresponding signature for a purpose
- * of #TALER_SIGNATURE_CLIENT_TEST_EDDSA.  If the signature is
- * valid, a reply with a #TALER_SIGNATURE_MINT_TEST_EDDSA is
- * returned using the same JSON format.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_TEST_handler_test_eddsa (struct TMH_RequestHandler *rh,
-			     struct MHD_Connection *connection,
-			     void **connection_cls,
-			     const char *upload_data,
-			     size_t *upload_data_size);
-
-
-/**
- * Handle a "/test/rsa/get" request.  Returns the RSA public key
- * ("rsa_pub") which is used for signing in "/test/rsa/sign".
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_TEST_handler_test_rsa_get (struct TMH_RequestHandler *rh,
-                               struct MHD_Connection *connection,
-                               void **connection_cls,
-                               const char *upload_data,
-                               size_t *upload_data_size);
-
-
-/**
- * Handle a "/test/rsa/sign" request.  Parses the JSON in the post, which
- * must contain an "blind_ev" blinded value.  A a blinded signature
- * ("rsa_blind_sig") is returned.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_TEST_handler_test_rsa_sign (struct TMH_RequestHandler *rh,
-                                struct MHD_Connection *connection,
-                                void **connection_cls,
-                                const char *upload_data,
-                                size_t *upload_data_size);
-
-
-/**
- * Handle a "/test/transfer" request.  Parses the JSON in the post,
- * which must contain a "secret_enc" with the encrypted link secret,
- * a "trans_priv" with the transfer private key, a "coin_pub" with
- * a coin public key.  A reply with the decrypted "secret" is
- * returned.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_TEST_handler_test_transfer (struct TMH_RequestHandler *rh,
-				struct MHD_Connection *connection,
-				void **connection_cls,
-				const char *upload_data,
-				size_t *upload_data_size);
-
-
-/**
- * Handle a "/test" request.  Parses the JSON in the post.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_TEST_handler_test (struct TMH_RequestHandler *rh,
-		       struct MHD_Connection *connection,
-		       void **connection_cls,
-		       const char *upload_data,
-		       size_t *upload_data_size);
-
-#endif
diff --git a/src/mint/taler-mint-httpd_tracking.c b/src/mint/taler-mint-httpd_tracking.c
deleted file mode 100644
index a6b41cf86..000000000
--- a/src/mint/taler-mint-httpd_tracking.c
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_tracking.c
- * @brief Handle wire transfer tracking-related requests
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <gnunet/gnunet_util_lib.h>
-#include <jansson.h>
-#include <microhttpd.h>
-#include <pthread.h>
-#include "taler_signatures.h"
-#include "taler-mint-httpd_parsing.h"
-#include "taler-mint-httpd_tracking.h"
-#include "taler-mint-httpd_responses.h"
-
-
-/**
- * Handle a "/wire/deposits" request.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_TRACKING_handler_wire_deposits (struct TMH_RequestHandler *rh,
-                                    struct MHD_Connection *connection,
-                                    void **connection_cls,
-                                    const char *upload_data,
-                                    size_t *upload_data_size)
-{
-  struct TALER_WireTransferIdentifierRawP wtid;
-  int res;
-
-  res = TMH_PARSE_mhd_request_arg_data (connection,
-                                        "wtid",
-                                        &wtid,
-                                        sizeof (struct TALER_WireTransferIdentifierRawP));
-  if (GNUNET_SYSERR == res)
-    return MHD_NO; /* internal error */
-  if (GNUNET_NO == res)
-    return MHD_YES; /* parse error */
-  return TMH_DB_execute_wire_deposits (connection,
-                                       &wtid);
-}
-
-
-/**
- * Check the merchant signature, and if it is valid,
- * return the wire transfer identifier.
- *
- * @param connection the MHD connection to handle
- * @param tps signed request to execute
- * @param merchant_pub public key from the merchant
- * @param merchant_sig signature from the merchant (to be checked)
- * @param transaction_id transaction ID (in host byte order)
- * @return MHD result code
- */
-static int
-check_and_handle_deposit_wtid_request (struct MHD_Connection *connection,
-				       const struct TALER_DepositTrackPS *tps,
-				       struct TALER_MerchantPublicKeyP *merchant_pub,
-				       struct TALER_MerchantSignatureP *merchant_sig,
-				       uint64_t transaction_id)
-{
-  if (GNUNET_OK !=
-      GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_MERCHANT_DEPOSIT_WTID,
-				  &tps->purpose,
-				  &merchant_sig->eddsa_sig,
-				  &merchant_pub->eddsa_pub))
-  {
-    GNUNET_break_op (0);
-    return TMH_RESPONSE_reply_signature_invalid (connection,
-						 "merchant_sig");
-  }
-  return TMH_DB_execute_deposit_wtid (connection,
-				      &tps->h_contract,
-				      &tps->h_wire,
-				      &tps->coin_pub,
-				      merchant_pub,
-				      transaction_id);
-}
-
-
-/**
- * Handle a "/deposit/wtid" request.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_TRACKING_handler_deposit_wtid (struct TMH_RequestHandler *rh,
-                                   struct MHD_Connection *connection,
-                                   void **connection_cls,
-                                   const char *upload_data,
-                                   size_t *upload_data_size)
-{
-  int res;
-  json_t *json;
-  struct TALER_DepositTrackPS tps;
-  uint64_t transaction_id;
-  struct TALER_MerchantSignatureP merchant_sig;
-  struct TMH_PARSE_FieldSpecification spec[] = {
-    TMH_PARSE_member_fixed ("H_wire", &tps.h_wire),
-    TMH_PARSE_member_fixed ("H_contract", &tps.h_contract),
-    TMH_PARSE_member_fixed ("coin_pub", &tps.coin_pub),
-    TMH_PARSE_member_uint64 ("transaction_id", &transaction_id),
-    TMH_PARSE_member_fixed ("merchant_pub", &tps.merchant),
-    TMH_PARSE_member_fixed ("merchant_sig", &merchant_sig),
-    TMH_PARSE_MEMBER_END
-  };
-
-  res = TMH_PARSE_post_json (connection,
-                             connection_cls,
-                             upload_data,
-                             upload_data_size,
-                             &json);
-  if (GNUNET_SYSERR == res)
-    return MHD_NO;
-  if ( (GNUNET_NO == res) || (NULL == json) )
-    return MHD_YES;
-  res = TMH_PARSE_json_data (connection,
-                             json,
-                             spec);
-  if (GNUNET_OK != res)
-  {
-    json_decref (json);
-    return (GNUNET_NO == res) ? MHD_YES : MHD_NO;
-  }
-  tps.purpose.size = htonl (sizeof (struct TALER_DepositTrackPS));
-  tps.purpose.purpose = htonl (TALER_SIGNATURE_MERCHANT_DEPOSIT_WTID);
-  tps.transaction_id = GNUNET_htonll (transaction_id);
-  res = check_and_handle_deposit_wtid_request (connection,
-					       &tps,
-					       &tps.merchant,
-					       &merchant_sig,
-					       transaction_id);
-  TMH_PARSE_release_data (spec);
-  json_decref (json);
-  return res;
-}
-
-
-/* end of taler-mint-httpd_tracking.c */
diff --git a/src/mint/taler-mint-httpd_tracking.h b/src/mint/taler-mint-httpd_tracking.h
deleted file mode 100644
index 9ec4c6827..000000000
--- a/src/mint/taler-mint-httpd_tracking.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_tracking.h
- * @brief Handle wire transfer tracking-related requests
- * @author Christian Grothoff
- */
-#ifndef TALER_MINT_HTTPD_TRACKING_H
-#define TALER_MINT_HTTPD_TRACKING_H
-
-#include <gnunet/gnunet_util_lib.h>
-#include <microhttpd.h>
-#include "taler-mint-httpd.h"
-
-
-/**
- * Handle a "/wire/deposits" request.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_TRACKING_handler_wire_deposits (struct TMH_RequestHandler *rh,
-                                    struct MHD_Connection *connection,
-                                    void **connection_cls,
-                                    const char *upload_data,
-                                    size_t *upload_data_size);
-
-
-/**
- * Handle a "/deposit/wtid" request.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_TRACKING_handler_deposit_wtid (struct TMH_RequestHandler *rh,
-                                   struct MHD_Connection *connection,
-                                   void **connection_cls,
-                                   const char *upload_data,
-                                   size_t *upload_data_size);
-
-
-#endif
diff --git a/src/mint/taler-mint-httpd_validation.c b/src/mint/taler-mint-httpd_validation.c
deleted file mode 100644
index 8f8ab415e..000000000
--- a/src/mint/taler-mint-httpd_validation.c
+++ /dev/null
@@ -1,231 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2016 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-
-/**
- * @file taler-mint-httpd_validation.c
- * @brief helpers for calling the wire plugins to validate addresses
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include <gnunet/gnunet_util_lib.h>
-#include "taler-mint-httpd_validation.h"
-#include "taler_wire_plugin.h"
-
-
-/**
- * Information we keep for each plugin.
- */
-struct Plugin
-{
-
-  /**
-   * We keep plugins in a DLL.
-   */
-  struct Plugin *next;
-
-  /**
-   * We keep plugins in a DLL.
-   */
-  struct Plugin *prev;
-
-  /**
-   * Type of the wireformat.
-   */
-  char *type;
-
-  /**
-   * Pointer to the plugin.
-   */
-  struct TALER_WIRE_Plugin *plugin;
-
-};
-
-/**
- * Head of DLL of wire plugins.
- */
-static struct Plugin *wire_head;
-
-/**
- * Tail of DLL of wire plugins.
- */
-static struct Plugin *wire_tail;
-
-
-/**
- * Initialize validation subsystem.
- *
- * @param cfg configuration to use
- * @return #GNUNET_OK on success
- */
-int
-TMH_VALIDATION_init (const struct GNUNET_CONFIGURATION_Handle *cfg)
-{
-  struct Plugin *p;
-  char *wireformats;
-  char *lib_name;
-  const char *token;
-
-  /* Find out list of supported wire formats */
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_string (cfg,
-                                             "mint",
-                                             "wireformat",
-                                             &wireformats))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               "mint",
-                               "wireformat");
-    return GNUNET_SYSERR;
-  }
-  for (token = strtok (wireformats,
-                       " ");
-       NULL != token;
-       token = strtok (NULL,
-                       " "))
-  {
-    (void) GNUNET_asprintf (&lib_name,
-                            "libtaler_plugin_wire_%s",
-                            token);
-    p = GNUNET_new (struct Plugin);
-    p->type = GNUNET_strdup (token);
-    p->plugin = GNUNET_PLUGIN_load (lib_name,
-                                    (void *) cfg);
-    if (NULL == p->plugin)
-    {
-      GNUNET_free (p);
-      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                  "Failed to load plugin %s\n",
-                  lib_name);
-      GNUNET_free (lib_name);
-      TMH_VALIDATION_done ();
-      return GNUNET_SYSERR;
-    }
-    p->plugin->library_name = lib_name;
-    GNUNET_CONTAINER_DLL_insert (wire_head,
-                                 wire_tail,
-                                 p);
-  }
-  GNUNET_free (wireformats);
-  return GNUNET_OK;
-}
-
-
-/**
- * Shutdown validation subsystem.
- */
-void
-TMH_VALIDATION_done ()
-{
-  struct Plugin *p;
-  char *lib_name;
-
-  while (NULL != (p = wire_head))
-  {
-    GNUNET_CONTAINER_DLL_remove (wire_head,
-                                 wire_tail,
-                                 p);
-    lib_name = p->plugin->library_name;
-    GNUNET_assert (NULL == GNUNET_PLUGIN_unload (lib_name,
-                                                 p->plugin));
-    GNUNET_free (lib_name);
-    GNUNET_free (p->type);
-    GNUNET_free (p);
-  }
-}
-
-
-/**
- * Check if the given wire format JSON object is correctly formatted as
- * a wire address.
- *
- * @param wire the JSON wire format object
- * @return #GNUNET_YES if correctly formatted; #GNUNET_NO if not
- */
-int
-TMH_json_validate_wireformat (const json_t *wire)
-{
-  const char *stype;
-  json_error_t error;
-  struct Plugin *p;
-
-  if (0 != json_unpack_ex ((json_t *) wire,
-                           &error, 0,
-                           "{s:s}",
-                           "type", &stype))
-  {
-    GNUNET_break (0);
-    return GNUNET_SYSERR;
-  }
-  for (p=wire_head; NULL != p; p = p->next)
-    if (0 == strcasecmp (p->type,
-                         stype))
-      return p->plugin->wire_validate (wire);
-  return GNUNET_NO;
-}
-
-
-/**
- * Check if we support the given wire method.
- *
- * @param type type of wire method to check
- * @return #GNUNET_YES if the method is supported
- */
-int
-TMH_VALIDATION_test_method (const char *type)
-{
-  struct Plugin *p;
-
-  for (p=wire_head;NULL != p;p = p->next)
-    if (0 == strcasecmp (type,
-                         p->type))
-      return GNUNET_YES;
-  return GNUNET_NO;
-}
-
-
-/**
- * Obtain supported validation methods as a JSON array,
- * and as a hash.
- *
- * @param[out] h set to the hash of the JSON methods
- * @return JSON array with the supported validation methods
- */
-json_t *
-TMH_VALIDATION_get_methods (struct GNUNET_HashCode *h)
-{
-  json_t *methods;
-  struct GNUNET_HashContext *hc;
-  const char *wf;
-  struct Plugin *p;
-
-  methods = json_array ();
-  hc = GNUNET_CRYPTO_hash_context_start ();
-  for (p=wire_head;NULL != p;p = p->next)
-  {
-    wf = p->type;
-    json_array_append_new (methods,
-                           json_string (wf));
-    GNUNET_CRYPTO_hash_context_read (hc,
-                                     wf,
-                                     strlen (wf) + 1);
-  }
-  GNUNET_CRYPTO_hash_context_finish (hc,
-                                     h);
-  return methods;
-}
-
-
-/* end of taler-mint-httpd_validation.c */
diff --git a/src/mint/taler-mint-httpd_validation.h b/src/mint/taler-mint-httpd_validation.h
deleted file mode 100644
index f5fb19003..000000000
--- a/src/mint/taler-mint-httpd_validation.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2016 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-
-/**
- * @file taler-mint-httpd_validation.h
- * @brief helpers for calling the wire plugins to validate addresses
- * @author Christian Grothoff
- */
-#ifndef TALER_MINT_HTTPD_VALIDATION_H
-#define TALER_MINT_HTTPD_VALIDATION_H
-#include <gnunet/gnunet_util_lib.h>
-#include <jansson.h>
-
-
-/**
- * Initialize validation subsystem.
- *
- * @param cfg configuration to use
- * @return #GNUNET_OK on success
- */
-int
-TMH_VALIDATION_init (const struct GNUNET_CONFIGURATION_Handle *cfg);
-
-
-/**
- * Shutdown validation subsystem.
- */
-void
-TMH_VALIDATION_done (void);
-
-
-/**
- * Check if the given wire format JSON object is correctly formatted as
- * a wire address.
- *
- * @param wire the JSON wire format object
- * @return #GNUNET_YES if correctly formatted; #GNUNET_NO if not
- */
-int
-TMH_json_validate_wireformat (const json_t *wire);
-
-/**
- * Check if we support the given wire method.
- *
- * @param type type of wire method to check
- * @return #GNUNET_YES if the method is supported
- */
-int
-TMH_VALIDATION_test_method (const char *type);
-
-
-/**
- * Obtain supported validation methods as a JSON array,
- * and as a hash.
- *
- * @param[out] h set to the hash of the JSON methods
- * @return JSON array with the supported validation methods
- */
-json_t *
-TMH_VALIDATION_get_methods (struct GNUNET_HashCode *h);
-
-
-#endif
diff --git a/src/mint/taler-mint-httpd_wire.c b/src/mint/taler-mint-httpd_wire.c
deleted file mode 100644
index 020a7e108..000000000
--- a/src/mint/taler-mint-httpd_wire.c
+++ /dev/null
@@ -1,220 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_wire.c
- * @brief Handle /wire requests
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include "taler-mint-httpd_keystate.h"
-#include "taler-mint-httpd_responses.h"
-#include "taler-mint-httpd_validation.h"
-#include "taler-mint-httpd_wire.h"
-#include <jansson.h>
-
-/**
- * Handle a "/wire" request.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_WIRE_handler_wire (struct TMH_RequestHandler *rh,
-                       struct MHD_Connection *connection,
-                       void **connection_cls,
-                       const char *upload_data,
-                       size_t *upload_data_size)
-{
-  struct TALER_MintWireSupportMethodsPS wsm;
-  struct TALER_MintPublicKeyP pub;
-  struct TALER_MintSignatureP sig;
-  json_t *methods;
-
-  wsm.purpose.size = htonl (sizeof (wsm));
-  wsm.purpose.purpose = htonl (TALER_SIGNATURE_MINT_WIRE_TYPES);
-  methods = TMH_VALIDATION_get_methods (&wsm.h_wire_types);
-  TMH_KS_sign (&wsm.purpose,
-               &pub,
-               &sig);
-  return TMH_RESPONSE_reply_json_pack (connection,
-                                       MHD_HTTP_OK,
-                                       "{s:o, s:o, s:o}",
-                                       "methods", methods,
-                                       "sig", TALER_json_from_data (&sig,
-                                                                    sizeof (sig)),
-                                       "pub", TALER_json_from_data (&pub,
-                                                                    sizeof (pub)));
-}
-
-
-/**
- * Handle a "/wire/test" request.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_WIRE_handler_wire_test (struct TMH_RequestHandler *rh,
-                            struct MHD_Connection *connection,
-                            void **connection_cls,
-                            const char *upload_data,
-                            size_t *upload_data_size)
-{
-  struct MHD_Response *response;
-  int ret;
-  char *wire_test_redirect;
-
-  response = MHD_create_response_from_buffer (0, NULL,
-                                              MHD_RESPMEM_PERSISTENT);
-  if (NULL == response)
-  {
-    GNUNET_break (0);
-    return MHD_NO;
-  }
-  TMH_RESPONSE_add_global_headers (response);
-  if (GNUNET_NO == TMH_VALIDATION_test_method ("test"))
-  {
-    /* Return 501: not implemented */
-    ret = MHD_queue_response (connection,
-			      MHD_HTTP_NOT_IMPLEMENTED,
-			      response);
-    MHD_destroy_response (response);
-    return ret;
-  }
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_string (cfg,
-					     "mint-wire-test",
-					     "REDIRECT_URL",
-					     &wire_test_redirect))
-  {
-    /* oopsie, configuration error */
-    MHD_destroy_response (response);
-    return TMH_RESPONSE_reply_internal_error (connection,
-					      "REDIRECT_URL not configured");
-  }
-  MHD_add_response_header (response,
-                           MHD_HTTP_HEADER_LOCATION,
-                           wire_test_redirect);
-  GNUNET_free (wire_test_redirect);
-  ret = MHD_queue_response (connection,
-                            rh->response_code,
-                            response);
-  MHD_destroy_response (response);
-  return ret;
-}
-
-
-/**
- * Handle a "/wire/sepa" request.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_WIRE_handler_wire_sepa (struct TMH_RequestHandler *rh,
-			    struct MHD_Connection *connection,
-			    void **connection_cls,
-			    const char *upload_data,
-			    size_t *upload_data_size)
-{
-  struct MHD_Response *response;
-  int ret;
-  char *sepa_wire_file;
-  int fd;
-  struct stat sbuf;
-
-  if (GNUNET_NO == TMH_VALIDATION_test_method ("sepa"))
-  {
-    /* Return 501: not implemented */
-    response = MHD_create_response_from_buffer (0, NULL,
-                                                MHD_RESPMEM_PERSISTENT);
-    if (NULL == response)
-    {
-      GNUNET_break (0);
-      return MHD_NO;
-    }
-    TMH_RESPONSE_add_global_headers (response);
-    ret = MHD_queue_response (connection,
-			      MHD_HTTP_NOT_IMPLEMENTED,
-			      response);
-    MHD_destroy_response (response);
-    return ret;
-  }
-  /* Fetch reply */
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_filename (cfg,
-                                               "mint-wire-sepa",
-                                               "SEPA_RESPONSE_FILE",
-                                               &sepa_wire_file))
-  {
-    return TMH_RESPONSE_reply_internal_error (connection,
-					      "SEPA_RESPONSE_FILE not configured");
-  }
-  fd = open (sepa_wire_file,
-	     O_RDONLY);
-  if (-1 == fd)
-  {
-    GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
-			      "open",
-			      sepa_wire_file);
-    GNUNET_free (sepa_wire_file);
-    return TMH_RESPONSE_reply_internal_error (connection,
-					      "Failed to open SEPA_RESPONSE_FILE");
-  }
-  if (0 != fstat (fd, &sbuf))
-  {
-    GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_ERROR,
-			      "fstat",
-			      sepa_wire_file);
-    (void) close (fd);
-    GNUNET_free (sepa_wire_file);
-    return TMH_RESPONSE_reply_internal_error (connection,
-					      "Failed to open SEPA_RESPONSE_FILE");
-  }
-  response = MHD_create_response_from_fd ((size_t) sbuf.st_size,
-					  fd);
-  GNUNET_free (sepa_wire_file);
-  if (NULL == response)
-  {
-    (void) close (fd);
-    GNUNET_break (0);
-    return MHD_NO;
-  }
-  TMH_RESPONSE_add_global_headers (response);
-  if (NULL != rh->mime_type)
-    (void) MHD_add_response_header (response,
-                                    MHD_HTTP_HEADER_CONTENT_TYPE,
-                                    rh->mime_type);
-  ret = MHD_queue_response (connection,
-                            rh->response_code,
-                            response);
-  MHD_destroy_response (response);
-  return ret;
-}
-
-/* end of taler-mint-httpd_wire.c */
diff --git a/src/mint/taler-mint-httpd_wire.h b/src/mint/taler-mint-httpd_wire.h
deleted file mode 100644
index e77daf019..000000000
--- a/src/mint/taler-mint-httpd_wire.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU Affero General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-
-  You should have received a copy of the GNU Affero General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file taler-mint-httpd_wire.h
- * @brief Handle /wire requests
- * @author Christian Grothoff
- */
-#ifndef TALER_MINT_HTTPD_WIRE_H
-#define TALER_MINT_HTTPD_WIRE_H
-
-#include <gnunet/gnunet_util_lib.h>
-#include <microhttpd.h>
-#include "taler-mint-httpd.h"
-
-
-/**
- * Handle a "/wire" request.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
-  */
-int
-TMH_WIRE_handler_wire (struct TMH_RequestHandler *rh,
-                       struct MHD_Connection *connection,
-                       void **connection_cls,
-                       const char *upload_data,
-                       size_t *upload_data_size);
-
-
-/**
- * Handle a "/wire/test" request.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_WIRE_handler_wire_test (struct TMH_RequestHandler *rh,
-                            struct MHD_Connection *connection,
-                            void **connection_cls,
-                            const char *upload_data,
-                            size_t *upload_data_size);
-
-
-/**
- * Handle a "/wire/sepa" request.
- *
- * @param rh context of the handler
- * @param connection the MHD connection to handle
- * @param[in,out] connection_cls the connection's closure (can be updated)
- * @param upload_data upload data
- * @param[in,out] upload_data_size number of bytes (left) in @a upload_data
- * @return MHD result code
- */
-int
-TMH_WIRE_handler_wire_sepa (struct TMH_RequestHandler *rh,
-			    struct MHD_Connection *connection,
-			    void **connection_cls,
-			    const char *upload_data,
-			    size_t *upload_data_size);
-
-#endif
diff --git a/src/mint/test_taler_mint_httpd.data b/src/mint/test_taler_mint_httpd.data
deleted file mode 100644
index 2d6020355..000000000
--- a/src/mint/test_taler_mint_httpd.data
+++ /dev/null
@@ -1,48 +0,0 @@
-# This file is part of TALER
-# Copyright (C) 2015 GNUnet e.V.
-#
-#  TALER is free software; you can redistribute it and/or modify it under the
-#  terms of the GNU Affero General Public License as published by the Free Software
-#  Foundation; either version 3, or (at your option) any later version.
-#
-#  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-#  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-#
-#  You should have received a copy of the GNU Affero General Public License along with
-#  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-#
-#
-# This is a resource file for test_taler_mint_httpd.sh.
-# Lines starting with '#' (must be first character in line) are comments.
-#
-# Each non-comment line must contain two strings, the first being the
-# URL on the HTTP serve which a HTTP POST request should be made out
-# two, followed by the JSON data to POST to the server.
-#
-# Note that neither element may contain any spaces!
-#
-#
-# Bad amount:
-/admin/add/incoming {"reserve_pub":"7RZBZ86677QMASD2KAYGEPD246C7B7RC6P101FNTG6ZK8X61A620","amount":"1","execution_date":"\/Date(1435934428788)\/","wire":{"empty":"empty"}}
-#
-# Bad wire format:
-/admin/add/incoming {"reserve_pub":"6VRFYZRVHJ434BV3J018MS6H7Q1V5Q6YECNMEF9G4WKB8QJQCAX0","amount":{"currency":"EUR","value":10,"fraction":3},"execution_date":"\/Date(1436258333286)\/","wire":{"empty":"empty"}}
-#
-# Malformed JSON (ill-balanced quotes around 'amount')
-/admin/add/incoming {"reserve_pub":"BSEFVVNZ4C3724BPVKTJMQMD73HQREA5FWSS1C1BZ36ZFF2WBTK0",amount":{"currency":"EUR","value":5,"fraction":3},"execution_date":"\/Date(1436271156447)\/","wire":{"type":"test","IBAN":0,"name":"Jack","BIC":999,"edate":"\/Date(1436271156447)\/","r":50}}
-#
-# Bad amount (value not a string)
-/admin/add/incoming {"reserve_pub":"BSEFVVNZ4C3724BPVKTJMQMD73HQREA5FWSS1C1BZ36ZFF2WBTK0","amount":{"currency":"EUR","value":"5","fraction":3},"execution_date":"\/Date(1436271156447)\/","wire":{"type":"test","IBAN":0,"name":"Jack","BIC":999,"edate":"\/Date(1436271156447)\/","r":50}}
-#
-# Bad amount (overall amount is a string)
-/admin/add/incoming {"reserve_pub":"BSEFVVNZ4C3724BPVKTJMQMD73HQREA5FWSS1C1BZ36ZFF2WBTK0","amount":"{\"currency\":\"EUR\",\"value\":5,\"fraction\":3}","execution_date":"\/Date(1436271156447)\/","wire":{"type":"test"}}
-#
-# Bogus denomination key
-/deposit {"f":{"currency":"EUR","value":5,"fraction":0},"H_contract":"NRT9E07FYT147V4VCDG0102P0YX0FZ11ZRG90F4X1HDV95M0J64ZVE4XQGNN9MJ3B5K3JX6TJ181KNGRYSZSTYZ5PQHBM1F9QKQ5B50","wire":{"bank":"dest bank","type":"TEST","account":42},"timestamp":"/Date(1436823947)/","coin_pub":"2KCPBGZ77VGJT4DG99EZAY0GQ5TJ89DF53FWYR5RFRTK0CCXRMFG","denom_pub":"51B7ARKCD5HJTTV5F4G0M818E9SP280A40G2GVH04CR30E9S6GVK2DHM8S234C236CR32C9N8RW44E9M712KAH1R60VM2CJ16RT3GGA18RR36CA575144DJ58CTK0E9M8D2M2E9S8GTKGH1Q8S0KACT174S3AD2670R4ADJ664W32C1N8N23CHA58MSK6DJ26WSMAD1P8H132CHP8GWKAG9K8RS46GJ6890M6GT28GSK4GJ66X2KCCA168RM4GA67113GDA28RR4AGA36RVK6GA460VKJDT58CVK6HA488R48E9R6D2KEH258N246HHJ850K4H9R8N0KEC9N68SM2EA48RR3JEA284SM6C9M6D130D228MSK6H1J6MSKCH1K8CR38CJ48MV36GJ38513CE9P60TM6CA56D1K8HHQ75244DA26WW4CG9M8MW3JE9M7133JGH354520818CMG26C1H60R30C935452081918G2J2G0","coin_sig":"W1TDFCSW5XQX9ZF4QPVP3JAJFYA7G4X6SY2B49KRNTDMA685M9YNFETV4610RFKZMSQ3RBRCYBJQH1ZQSMTDMW9W8X6C9SGPCA5ST0R","H_wire":"YQED9FDYPKK2QQYB3FS19Y15ZMKBAXJP2C73CXASAF1KM6ZYY723TEJ3HBR6D864A7X5W58G92QJ0A9PFMZNB81ZP9NJAQQCCABM4RG","ub_sig":"51SPJSSDESGPR80A40M74WV140520818ECG26DSQ8913AC1S7513EC9G6914AE228H236HHR68VKCCSK650MAGSM6GV3GCHP6D330H1R8GVKJD9P68W46H9Q8GVK8HA6752M2CSN8N248DHJ8H346E9J8RS4CDA28D33ECJ38S33JC9R6MRM8D9G74WM8HA668T44H1N6RT44GHS8CSK8H1G6D346C9J6CS3EC1N8H2M4HA38CSK2D246CW4CD1P70VMAD1Q891K8H1M64TK6C258MRM6G9R88RM6E2488WK2CSQ6GW3GH9N64RKGH2375136GA66533GCSJ65344CHH84W38HHP75330DA58RSKJCJ364SK0C1R8GVK6DSP61134HA48GT4CE1J6MW36C9G891K2GT68GTMCCSQ890M8E1P88R44DA174VK4E135452081918G2J2G0","transaction_id":1,"merchant_pub":"4032W2ZXFW000KRJQDH3CZR00000000004000030P6YG1NR50000","refund_deadline":"/Date(0)/"}
-#
-# missing coin_ev argument
-/withdraw/sign {"denom_pub":"51R7ARKCD5HJTTV5F4G0M818E9SP280A40G2GVH04CR30E9S6GVK2DHM8S234C236CR32C9N8RW44E9M712KAH1R60VM2CJ16RT3GGA18RR36CA575144DJ58CTK0E9M8D2M2E9S8GTKGH1Q8S0KACT174S3AD2670R4ADJ664W32C1N8N23CHA58MSK6DJ26WSMAD1P8H132CHP8GWKAG9K8RS46GJ6890M6GT28GSK4GJ66X2KCCA168RM4GA67113GDA28RR4AGA36RVK6GA460VKJDT58CVK6HA488R48E9R6D2KEH258N246HHJ850K4H9R8N0KEC9N68SM2EA48RR3JEA284SM6C9M6D130D228MSK6H1J6MSKCH1K8CR38CJ48MV36GJ38513CE9P60TM6CA56D1K8HHQ75244DA26WW4CG9M8MW3JE9M7133JGH354520818CMG26C1H60R30C935452081918G2J2G0","#oin_ev":"7DPN42W14BWWD2NWNDYP086276CFV0H8VEV43NFWQGZ3Y8WVR5R5HCN8THX43Z61TFN3CH9N6X5Q0P0T9NF2G8ZWBH8KXEQFQ973CMDDHF1FSE2G9289AB9ERHM8X222VB2WS733X36P8EMG4D3T1N2JHFP530C9RPEAPHDQXZABB6CJ63YD0581JVRY365HHF20RW3BNVKXP","reserve_sig":"VPKYWKGE6FB172XX222N1J0TAEXQE6VERN5X4ANJ0D9K1E7JAX01CPR1PT51SKK5JD72H1GRJ0S2ZQSKN22ZBEGKS77GMT6BF6DD030","reserve_pub":"FN7ARB2MJH2EDMMVT2985Y141YTCE503FS27BTNQ6JSCG3GMBJDG"}
-#
-# malformed coin_ev argument
-/withdraw/sign {"denom_pub":"51R7ARKCD5HJTTV5F4G0M818E9SP280A40G2GVH04CR30E9S6GVK2DHM8S234C236CR32C9N8RW44E9M712KAH1R60VM2CJ16RT3GGA18RR36CA575144DJ58CTK0E9M8D2M2E9S8GTKGH1Q8S0KACT174S3AD2670R4ADJ664W32C1N8N23CHA58MSK6DJ26WSMAD1P8H132CHP8GWKAG9K8RS46GJ6890M6GT28GSK4GJ66X2KCCA168RM4GA67113GDA28RR4AGA36RVK6GA460VKJDT58CVK6HA488R48E9R6D2KEH258N246HHJ850K4H9R8N0KEC9N68SM2EA48RR3JEA284SM6C9M6D130D228MSK6H1J6MSKCH1K8CR38CJ48MV36GJ38513CE9P60TM6CA56D1K8HHQ75244DA26WW4CG9M8MW3JE9M7133JGH354520818CMG26C1H60R30C935452081918G2J2G0","coin_ev":"'DPN42W14BWWD2NWNDYP086276CFV0H8VEV43NFWQGZ3Y8WVR5R5HCN8THX43Z61TFN3CH9N6X5Q0P0T9NF2G8ZWBH8KXEQFQ973CMDDHF1FSE2G9289AB9ERHM8X222VB2WS733X36P8EMG4D3T1N2JHFP530C9RPEAPHDQXZABB6CJ63YD0581JVRY365HHF20RW3BNVKXP","reserve_sig":"VPKYWKGE6FB172XX222N1J0TAEXQE6VERN5X4ANJ0D9K1E7JAX01CPR1PT51SKK5JD72H1GRJ0S2ZQSKN22ZBEGKS77GMT6BF6DD030","reserve_pub":"FN7ARB2MJH2EDMMVT2985Y141YTCE503FS27BTNQ6JSCG3GMBJDG"}
diff --git a/src/mint/test_taler_mint_httpd.sh b/src/mint/test_taler_mint_httpd.sh
deleted file mode 100755
index 05d26620b..000000000
--- a/src/mint/test_taler_mint_httpd.sh
+++ /dev/null
@@ -1,35 +0,0 @@
-#!/bin/bash
-#
-# This file is part of TALER
-# Copyright (C) 2015 GNUnet e.V.
-#
-#  TALER is free software; you can redistribute it and/or modify it under the
-#  terms of the GNU Affero General Public License as published by the Free Software
-#  Foundation; either version 3, or (at your option) any later version.
-#
-#  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-#  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-#
-#  You should have received a copy of the GNU Affero General Public License along with
-#  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-#
-#
-# This script uses 'curl' to POST various ill-formed requests to the
-# taler-mint-httpd.  Basically, the goal is to make sure that the
-# HTTP server survives (and produces the 'correct' error code).
-#
-# We read the JSON snippets to POST from test_taler_mint_httpd.data
-#
-# Setup keys.
-taler-mint-keyup -d test-mint-home -m test-mint-home/master.priv
-# Run Mint HTTPD (in background)
-taler-mint-httpd -d test-mint-home &
-# Give HTTP time to start
-sleep 2
-# Run test...
-cat test_taler_mint_httpd.data | grep -v ^\# | awk '{ print "curl -d '\''" $2 "'\'' http://localhost:8081"$1 }' | bash
-# Stop HTTP server
-kill -TERM %%
-# FIXME: not sure this is the 'correct' return code...
-exit $?
diff --git a/src/mint/test_taler_mint_httpd_afl.sh b/src/mint/test_taler_mint_httpd_afl.sh
deleted file mode 100755
index d2c40c216..000000000
--- a/src/mint/test_taler_mint_httpd_afl.sh
+++ /dev/null
@@ -1,41 +0,0 @@
-#!/bin/bash
-#
-# This file is part of TALER
-# Copyright (C) 2015 GNUnet e.V.
-#
-#  TALER is free software; you can redistribute it and/or modify it under the
-#  terms of the GNU Affero General Public License as published by the Free Software
-#  Foundation; either version 3, or (at your option) any later version.
-#
-#  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-#  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-#  A PARTICULAR PURPOSE.  See the GNU Affero General Public License for more details.
-#
-#  You should have received a copy of the GNU Affero General Public License along with
-#  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-#
-#
-# This script uses 'curl' to POST various ill-formed requests to the
-# taler-mint-httpd.  Basically, the goal is to make sure that the
-# HTTP server survives (and produces the 'correct' error code).
-#
-# We read the JSON snippets from afl-tests/
-#
-PREFIX=
-# Uncomment this line to run with valgrind...
-PREFIX="valgrind --leak-check=yes --log-file=valgrind.%p"
-# Setup keys.
-taler-mint-keyup -d test-mint-home -m test-mint-home/master.priv
-# Setup database (just to be sure)
-taler-mint-dbinit -d test-mint-home &> /dev/null || true
-# Only log hard errors, we expect lots of warnings...
-export GNUNET_FORCE_LOG="taler-mint-httpd;;;;ERROR/libmicrohttpd;;;;ERROR/util;;;;ERROR/"
-# Run test...
-for n in afl-tests/*
-do
-  echo -n "Test $n "
-  $PREFIX taler-mint-httpd -d test-mint-home/ -t 1 -f $n -C > /dev/null || { echo "FAIL!"; }
-#  $PREFIX taler-mint-httpd -d test-mint-home/ -t 1 -f $n -C > /dev/null || { echo "FAIL!"; exit 1; }
-  echo "OK"
-done
-exit 0
diff --git a/src/mintdb/Makefile.am b/src/mintdb/Makefile.am
deleted file mode 100644
index e3d37b2e5..000000000
--- a/src/mintdb/Makefile.am
+++ /dev/null
@@ -1,110 +0,0 @@
-# This Makefile.am is in the public domain
-AM_CPPFLAGS = -I$(top_srcdir)/src/include -I$(top_srcdir)/src/pq/ $(POSTGRESQL_CPPFLAGS)
-
-if USE_COVERAGE
-  AM_CFLAGS = --coverage -O0
-  XLIB = -lgcov
-endif
-
-plugindir = $(libdir)/taler
-
-if HAVE_POSTGRESQL
-plugin_LTLIBRARIES = \
-  libtaler_plugin_mintdb_postgres.la
-endif
-
-EXTRA_DIST = \
-  plugin_mintdb_common.c \
-  test-mint-db-postgres.conf
-
-libtaler_plugin_mintdb_postgres_la_SOURCES = \
-  plugin_mintdb_postgres.c
-libtaler_plugin_mintdb_postgres_la_LIBADD = \
-  $(LTLIBINTL)
-libtaler_plugin_mintdb_postgres_la_LDFLAGS = \
-  $(TALER_PLUGIN_LDFLAGS) \
-  $(top_builddir)/src/pq/libtalerpq.la \
-  $(top_builddir)/src/util/libtalerutil.la \
-  -lpq \
-  -lgnunetpq \
-  -lgnunetutil $(XLIB)
-
-lib_LTLIBRARIES = \
-  libtalermintdb.la
-
-libtalermintdb_la_SOURCES = \
-  mintdb_keyio.c \
-  mintdb_plugin.c
-
-libtalermintdb_la_LIBADD = \
-  $(top_builddir)/src/util/libtalerutil.la \
-  -lgnunetutil  $(XLIB)
-
-libtalermintdb_la_LDFLAGS = \
-  $(POSTGRESQL_LDFLAGS) \
-  -version-info 0:0:0 \
-  -no-undefined
-
-
-check_PROGRAMS = \
-  test-mintdb-deposits \
-  test-mintdb-keyio \
-  test-mintdb-postgres \
-  test-perf-taler-mintdb \
-  perf-mintdb
-
-TESTS = \
-  test-mintdb-postgres \
-  test-perf-taler-mintdb
-
-test_mintdb_deposits_SOURCES = \
-  test_mintdb_deposits.c
-test_mintdb_deposits_LDADD = \
-  libtalermintdb.la \
-  $(top_srcdir)/src/util/libtalerutil.la \
-  $(top_srcdir)/src/pq/libtalerpq.la \
-  -lgnunetutil \
-  -ljansson \
-  -lpq
-
-test_mintdb_keyio_SOURCES = \
-  test_mintdb_keyio.c
-test_mintdb_keyio_LDADD = \
-  libtalermintdb.la \
-  $(top_srcdir)/src/util/libtalerutil.la \
-  $(top_srcdir)/src/pq/libtalerpq.la \
-  -lgnunetutil
-
-test_mintdb_postgres_SOURCES = \
-  test_mintdb.c
-test_mintdb_postgres_LDADD = \
-  libtalermintdb.la \
-  $(top_srcdir)/src/util/libtalerutil.la \
-  $(top_srcdir)/src/pq/libtalerpq.la \
-  -lgnunetutil -ljansson
-
-test_perf_taler_mintdb_SOURCES = \
-  test_perf_taler_mintdb.c \
-  perf_taler_mintdb_init.c \
-  perf_taler_mintdb_interpreter.c
-test_perf_taler_mintdb_LDADD = \
-  libtalermintdb.la \
-  $(top_srcdir)/src/util/libtalerutil.la \
-  $(top_srcdir)/src/pq/libtalerpq.la \
-  -ljansson \
-  -lgnunetutil
-
-perf_mintdb_SOURCES = \
-  perf_taler_mintdb.c \
-  perf_taler_mintdb_init.c \
-  perf_taler_mintdb_interpreter.c
-perf_mintdb_LDADD = \
-  libtalermintdb.la \
-  $(top_srcdir)/src/util/libtalerutil.la \
-  $(top_srcdir)/src/pq/libtalerpq.la \
-  -ljansson \
-  -lgnunetutil
-
-
-EXTRA_test_mintdb_postgres_DEPENDENCIES = \
-  libtaler_plugin_mintdb_postgres.la
diff --git a/src/mintdb/mintdb_keyio.c b/src/mintdb/mintdb_keyio.c
deleted file mode 100644
index 89ac9055a..000000000
--- a/src/mintdb/mintdb_keyio.c
+++ /dev/null
@@ -1,558 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mintdb/mintdb_keyio.c
- * @brief I/O operations for the Mint's private keys
- * @author Florian Dold
- * @author Benedikt Mueller
- * @author Sree Harsha Totakura
- * @author Christian Grothoff
- */
-#include "platform.h"
-#include "taler_mintdb_lib.h"
-
-
-/**
- * Closure for the #signkeys_iterate_dir_iter().
- */
-struct SignkeysIterateContext
-{
-
-  /**
-   * Function to call on each signing key.
-   */
-  TALER_MINTDB_SigningKeyIterator it;
-
-  /**
-   * Closure for @e it.
-   */
-  void *it_cls;
-};
-
-
-/**
- * Function called on each file in the directory with our signing
- * keys. Parses the file and calls the iterator from @a cls.
- *
- * @param cls the `struct SignkeysIterateContext *`
- * @param filename name of the file to parse
- * @return #GNUNET_OK to continue,
- *         #GNUNET_NO to stop iteration without error,
- *         #GNUNET_SYSERR to stop iteration with error
- */
-static int
-signkeys_iterate_dir_iter (void *cls,
-                           const char *filename)
-{
-  struct SignkeysIterateContext *skc = cls;
-  ssize_t nread;
-  struct TALER_MINTDB_PrivateSigningKeyInformationP issue;
-
-  nread = GNUNET_DISK_fn_read (filename,
-                               &issue,
-                               sizeof (struct TALER_MINTDB_PrivateSigningKeyInformationP));
-  if (nread != sizeof (struct TALER_MINTDB_PrivateSigningKeyInformationP))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                "Invalid signkey file `%s': wrong size (%d, expected %u)\n",
-                filename,
-                (int) nread,
-                sizeof (struct TALER_MINTDB_PrivateSigningKeyInformationP));
-    return GNUNET_OK;
-  }
-  return skc->it (skc->it_cls,
-                  filename,
-                  &issue);
-}
-
-
-/**
- * Call @a it for each signing key found in the @a mint_base_dir.
- *
- * @param mint_base_dir base directory for the mint,
- *                      the signing keys must be in the #TALER_MINTDB_DIR_SIGNING_KEYS
- *                      subdirectory
- * @param it function to call on each signing key
- * @param it_cls closure for @a it
- * @return number of files found (may not match
- *         number of keys given to @a it as malformed
- *         files are simply skipped), -1 on error
- */
-int
-TALER_MINTDB_signing_keys_iterate (const char *mint_base_dir,
-                                   TALER_MINTDB_SigningKeyIterator it,
-                                   void *it_cls)
-{
-  char *signkey_dir;
-  struct SignkeysIterateContext skc;
-  int ret;
-
-  GNUNET_asprintf (&signkey_dir,
-                   "%s" DIR_SEPARATOR_STR TALER_MINTDB_DIR_SIGNING_KEYS,
-                   mint_base_dir);
-  skc.it = it;
-  skc.it_cls = it_cls;
-  ret = GNUNET_DISK_directory_scan (signkey_dir,
-                                    &signkeys_iterate_dir_iter,
-                                    &skc);
-  GNUNET_free (signkey_dir);
-  return ret;
-}
-
-
-/**
- * Import a denomination key from the given file.
- *
- * @param filename the file to import the key from
- * @param[out] dki set to the imported denomination key
- * @return #GNUNET_OK upon success;
- *         #GNUNET_SYSERR upon failure
- */
-int
-TALER_MINTDB_denomination_key_read (const char *filename,
-                                    struct TALER_MINTDB_DenominationKeyIssueInformation *dki)
-{
-  uint64_t size;
-  size_t offset;
-  void *data;
-  struct GNUNET_CRYPTO_rsa_PrivateKey *priv;
-
-  if (GNUNET_OK != GNUNET_DISK_file_size (filename,
-                                          &size,
-                                          GNUNET_YES,
-                                          GNUNET_YES))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "Skipping inaccessable denomination key file `%s'\n",
-                filename);
-    return GNUNET_SYSERR;
-  }
-  offset = sizeof (struct TALER_MINTDB_DenominationKeyInformationP);
-  if (size <= offset)
-  {
-    GNUNET_break (0);
-    return GNUNET_SYSERR;
-  }
-  data = GNUNET_malloc (size);
-  if (size !=
-      GNUNET_DISK_fn_read (filename,
-                           data,
-                           size))
-  {
-    GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING,
-                              "read",
-                              filename);
-    GNUNET_free (data);
-    return GNUNET_SYSERR;
-  }
-  if (NULL ==
-      (priv = GNUNET_CRYPTO_rsa_private_key_decode (data + offset,
-                                                    size - offset)))
-  {
-    GNUNET_free (data);
-    return GNUNET_SYSERR;
-  }
-  GNUNET_assert (NULL == dki->denom_priv.rsa_private_key);
-  dki->denom_priv.rsa_private_key = priv;
-  dki->denom_pub.rsa_public_key
-    = GNUNET_CRYPTO_rsa_private_key_get_public (priv);
-  memcpy (&dki->issue,
-          data,
-          offset);
-  GNUNET_free (data);
-  return GNUNET_OK;
-}
-
-
-/**
- * Exports a denomination key to the given file.
- *
- * @param filename the file where to write the denomination key
- * @param dki the denomination key
- * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure.
- */
-int
-TALER_MINTDB_denomination_key_write (const char *filename,
-                                     const struct TALER_MINTDB_DenominationKeyIssueInformation *dki)
-{
-  char *priv_enc;
-  size_t priv_enc_size;
-  struct GNUNET_DISK_FileHandle *fh;
-  ssize_t wrote;
-  size_t wsize;
-  int ret;
-
-  fh = NULL;
-  priv_enc_size
-    = GNUNET_CRYPTO_rsa_private_key_encode (dki->denom_priv.rsa_private_key,
-                                            &priv_enc);
-  ret = GNUNET_SYSERR;
-  if (NULL == (fh = GNUNET_DISK_file_open
-               (filename,
-                GNUNET_DISK_OPEN_WRITE | GNUNET_DISK_OPEN_CREATE | GNUNET_DISK_OPEN_TRUNCATE,
-                GNUNET_DISK_PERM_USER_READ | GNUNET_DISK_PERM_USER_WRITE)))
-    goto cleanup;
-  wsize = sizeof (struct TALER_MINTDB_DenominationKeyInformationP);
-  if (GNUNET_SYSERR == (wrote = GNUNET_DISK_file_write (fh,
-                                                        &dki->issue,
-                                                        wsize)))
-    goto cleanup;
-  if (wrote != wsize)
-    goto cleanup;
-  if (GNUNET_SYSERR ==
-      (wrote = GNUNET_DISK_file_write (fh,
-                                       priv_enc,
-                                       priv_enc_size)))
-    goto cleanup;
-  if (wrote != priv_enc_size)
-    goto cleanup;
-  ret = GNUNET_OK;
- cleanup:
-  GNUNET_free_non_null (priv_enc);
-  if (NULL != fh)
-    (void) GNUNET_DISK_file_close (fh);
-  return ret;
-}
-
-
-/**
- * Closure for #denomkeys_iterate_keydir_iter() and
- * #denomkeys_iterate_topdir_iter().
- */
-struct DenomkeysIterateContext
-{
-
-  /**
-   * Set to the name of the directory below the top-level directory
-   * during the call to #denomkeys_iterate_keydir_iter().
-   */
-  const char *alias;
-
-  /**
-   * Function to call on each denomination key.
-   */
-  TALER_MINTDB_DenominationKeyIterator it;
-
-  /**
-   * Closure for @e it.
-   */
-  void *it_cls;
-};
-
-
-/**
- * Decode the denomination key in the given file @a filename and call
- * the callback in @a cls with the information.
- *
- * @param cls the `struct DenomkeysIterateContext *`
- * @param filename name of a file that should contain
- *                 a denomination key
- * @return #GNUNET_OK to continue to iterate
- *         #GNUNET_NO to abort iteration with success
- *         #GNUNET_SYSERR to abort iteration with failure
- */
-static int
-denomkeys_iterate_keydir_iter (void *cls,
-                               const char *filename)
-{
-  struct DenomkeysIterateContext *dic = cls;
-  struct TALER_MINTDB_DenominationKeyIssueInformation issue;
-  int ret;
-
-  memset (&issue, 0, sizeof (issue));
-  if (GNUNET_OK !=
-      TALER_MINTDB_denomination_key_read (filename,
-                                          &issue))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                "Invalid denomkey file: '%s'\n",
-                filename);
-    return GNUNET_OK;
-  }
-  ret = dic->it (dic->it_cls,
-                 dic->alias,
-                 &issue);
-  GNUNET_CRYPTO_rsa_private_key_free (issue.denom_priv.rsa_private_key);
-  GNUNET_CRYPTO_rsa_public_key_free (issue.denom_pub.rsa_public_key);
-  return ret;
-}
-
-
-/**
- * Function called on each subdirectory in the #TALER_MINTDB_DIR_DENOMINATION_KEYS.  Will
- * call the #denomkeys_iterate_keydir_iter() on each file in the
- * subdirectory.
- *
- * @param cls the `struct DenomkeysIterateContext *`
- * @param filename name of the subdirectory to scan
- * @return #GNUNET_OK on success,
- *         #GNUNET_SYSERR if we need to abort
- */
-static int
-denomkeys_iterate_topdir_iter (void *cls,
-                               const char *filename)
-{
-  struct DenomkeysIterateContext *dic = cls;
-
-  dic->alias = GNUNET_STRINGS_get_short_name (filename);
-  if (0 > GNUNET_DISK_directory_scan (filename,
-                                      &denomkeys_iterate_keydir_iter,
-                                      dic))
-    return GNUNET_SYSERR;
-  return GNUNET_OK;
-}
-
-
-/**
- * Call @a it for each denomination key found in the @a mint_base_dir.
- *
- * @param mint_base_dir base directory for the mint,
- *                      the signing keys must be in the #TALER_MINTDB_DIR_DENOMINATION_KEYS
- *                      subdirectory
- * @param it function to call on each denomination key found
- * @param it_cls closure for @a it
- * @return -1 on error, 0 if no files were found, otherwise
- *         a positive number (however, even with a positive
- *         number it is possible that @a it was never called
- *         as maybe none of the files were well-formed)
- */
-int
-TALER_MINTDB_denomination_keys_iterate (const char *mint_base_dir,
-                                        TALER_MINTDB_DenominationKeyIterator it,
-                                        void *it_cls)
-{
-  char *dir;
-  struct DenomkeysIterateContext dic;
-  int ret;
-
-  GNUNET_asprintf (&dir,
-                   "%s" DIR_SEPARATOR_STR TALER_MINTDB_DIR_DENOMINATION_KEYS,
-                   mint_base_dir);
-  dic.it = it;
-  dic.it_cls = it_cls;
-  ret = GNUNET_DISK_directory_scan (dir,
-                                    &denomkeys_iterate_topdir_iter,
-                                    &dic);
-  GNUNET_free (dir);
-  return ret;
-}
-
-
-/**
- * Closure for #auditor_iter() and
- */
-struct AuditorIterateContext
-{
-
-  /**
-   * Function to call with the information for each auditor.
-   */
-  TALER_MINTDB_AuditorIterator it;
-
-  /**
-   * Closure for @e it.
-   */
-  void *it_cls;
-};
-
-
-GNUNET_NETWORK_STRUCT_BEGIN
-
-/**
- * Header of a file with auditing information.
- */
-struct AuditorFileHeaderP
-{
-
-  /**
-   * Public key of the auditor.
-   */
-  struct TALER_AuditorPublicKeyP apub;
-
-  /**
-   * Master public key of the mint the auditor is signing
-   * information for.
-   */
-  struct TALER_MasterPublicKeyP mpub;
-
-};
-GNUNET_NETWORK_STRUCT_END
-
-
-/**
- * Load the auditor signature and the information signed by the
- * auditor and call the callback in @a cls with the information.
- *
- * @param cls the `struct AuditorIterateContext *`
- * @param filename name of a file that should contain
- *                 a denomination key
- * @return #GNUNET_OK to continue to iterate
- *         #GNUNET_NO to abort iteration with success
- *         #GNUNET_SYSERR to abort iteration with failure
- */
-static int
-auditor_iter (void *cls,
-              const char *filename)
-{
-  struct AuditorIterateContext *aic = cls;
-  uint64_t size;
-  struct AuditorFileHeaderP *af;
-  const struct TALER_AuditorSignatureP *sigs;
-  const struct TALER_DenominationKeyValidityPS *dki;
-  unsigned int len;
-  int ret;
-
-  if (GNUNET_OK != GNUNET_DISK_file_size (filename,
-                                          &size,
-                                          GNUNET_YES,
-                                          GNUNET_YES))
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "Skipping inaccessable auditor information file `%s'\n",
-                filename);
-    return GNUNET_SYSERR;
-  }
-  if ( (size < sizeof (struct AuditorFileHeaderP)) ||
-       (0 != (len = ((size - sizeof (struct AuditorFileHeaderP)) %
-                     (sizeof (struct TALER_DenominationKeyValidityPS) +
-                      sizeof (struct TALER_AuditorSignatureP))))) )
-  {
-    GNUNET_break (0);
-    return GNUNET_SYSERR;
-  }
-  af = GNUNET_malloc (size);
-  if (size !=
-      GNUNET_DISK_fn_read (filename,
-                           af,
-                           size))
-  {
-    GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING,
-                              "read",
-                              filename);
-    GNUNET_free (af);
-    return GNUNET_SYSERR;
-  }
-  sigs = (const struct TALER_AuditorSignatureP *) &af[1];
-  dki = (const struct TALER_DenominationKeyValidityPS *) &sigs[len];
-  ret = aic->it (aic->it_cls,
-                 &af->apub,
-                 &af->mpub,
-                 len,
-                 sigs,
-                 dki);
-  GNUNET_free (af);
-  return ret;
-}
-
-
-/**
- * Call @a it with information for each auditor found in the @a mint_base_dir.
- *
- * @param mint_base_dir base directory for the mint,
- *                      the signing keys must be in the #TALER_MINTDB_DIR_DENOMINATION_KEYS
- *                      subdirectory
- * @param it function to call with auditor information
- * @param it_cls closure for @a it
- * @return -1 on error, 0 if no files were found, otherwise
- *         a positive number (however, even with a positive
- *         number it is possible that @a it was never called
- *         as maybe none of the files were well-formed)
- */
-int
-TALER_MINTDB_auditor_iterate (const char *mint_base_dir,
-                              TALER_MINTDB_AuditorIterator it,
-                              void *it_cls)
-{
-  char *dir;
-  struct AuditorIterateContext aic;
-  int ret;
-
-  GNUNET_asprintf (&dir,
-                   "%s" DIR_SEPARATOR_STR TALER_MINTDB_DIR_AUDITORS,
-                   mint_base_dir);
-  aic.it = it;
-  aic.it_cls = it_cls;
-  ret = GNUNET_DISK_directory_scan (dir,
-                                    &auditor_iter,
-                                    &aic);
-  GNUNET_free (dir);
-  return ret;
-}
-
-
-/**
- * Write auditor information to the given file.
- *
- * @param filename the file where to write the auditor information to
- * @param apub the auditor's public key
- * @param asigs the auditor's signatures, array of length @a dki_len
- * @param mpub the mint's public key (as expected by the auditor)
- * @param dki_len length of @a dki
- * @param dki array of denomination coin data signed by the auditor
- * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure.
- */
-int
-TALER_MINTDB_auditor_write (const char *filename,
-                            const struct TALER_AuditorPublicKeyP *apub,
-                            const struct TALER_AuditorSignatureP *asigs,
-                            const struct TALER_MasterPublicKeyP *mpub,
-                            unsigned int dki_len,
-                            const struct TALER_DenominationKeyValidityPS *dki)
-{
-  struct AuditorFileHeaderP af;
-  struct GNUNET_DISK_FileHandle *fh;
-  ssize_t wrote;
-  size_t wsize;
-  int ret;
-  int eno;
-
-  af.apub = *apub;
-  af.mpub = *mpub;
-  ret = GNUNET_SYSERR;
-  if (NULL == (fh = GNUNET_DISK_file_open
-               (filename,
-                GNUNET_DISK_OPEN_WRITE | GNUNET_DISK_OPEN_CREATE | GNUNET_DISK_OPEN_TRUNCATE,
-                GNUNET_DISK_PERM_USER_READ | GNUNET_DISK_PERM_USER_WRITE)))
-    goto cleanup;
-  wsize = sizeof (struct AuditorFileHeaderP);
-  if (GNUNET_SYSERR == (wrote = GNUNET_DISK_file_write (fh,
-                                                        &af,
-                                                        wsize)))
-    goto cleanup;
-  if (wrote != wsize)
-    goto cleanup;
-  wsize = dki_len * sizeof (struct TALER_AuditorSignatureP);
-  if (wsize ==
-      GNUNET_DISK_file_write (fh,
-                              asigs,
-                              wsize))
-    ret = GNUNET_OK;
-  wsize = dki_len * sizeof (struct TALER_DenominationKeyValidityPS);
-  if (wsize ==
-      GNUNET_DISK_file_write (fh,
-                              dki,
-                              wsize))
-    ret = GNUNET_OK;
- cleanup:
-  eno = errno;
-  if (NULL != fh)
-    (void) GNUNET_DISK_file_close (fh);
-  errno = eno;
-  return ret;
-}
-
-
-/* end of mintdb_keyio.c */
diff --git a/src/mintdb/mintdb_plugin.c b/src/mintdb/mintdb_plugin.c
deleted file mode 100644
index 4a0f1dc04..000000000
--- a/src/mintdb/mintdb_plugin.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mintdb/mintdb_plugin.c
- * @brief Logic to load database plugin
- * @author Christian Grothoff
- * @author Sree Harsha Totakura <sreeharsha@totakura.in>
- */
-#include "platform.h"
-#include "taler_mintdb_plugin.h"
-#include <ltdl.h>
-
-
-/**
- * Initialize the plugin.
- *
- * @param cfg configuration to use
- * @return #GNUNET_OK on success
- */
-struct TALER_MINTDB_Plugin *
-TALER_MINTDB_plugin_load (const struct GNUNET_CONFIGURATION_Handle *cfg)
-{
-  char *plugin_name;
-  char *lib_name;
-  struct GNUNET_CONFIGURATION_Handle *cfg_dup;
-  struct TALER_MINTDB_Plugin *plugin;
-
-  if (GNUNET_SYSERR ==
-      GNUNET_CONFIGURATION_get_value_string (cfg,
-                                             "mint",
-                                             "db",
-                                             &plugin_name))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               "mint",
-                               "db");
-    return NULL;
-  }
-  (void) GNUNET_asprintf (&lib_name,
-                          "libtaler_plugin_mintdb_%s",
-                          plugin_name);
-  GNUNET_free (plugin_name);
-  cfg_dup = GNUNET_CONFIGURATION_dup (cfg);
-  plugin = GNUNET_PLUGIN_load (lib_name, cfg_dup);
-  if (NULL != plugin)
-    plugin->library_name = lib_name;
-  else
-    GNUNET_free (lib_name);
-  GNUNET_CONFIGURATION_destroy (cfg_dup);
-  return plugin;
-}
-
-
-/**
- * Shutdown the plugin.
- *
- * @param plugin the plugin to unload
- */
-void
-TALER_MINTDB_plugin_unload (struct TALER_MINTDB_Plugin *plugin)
-{
-  char *lib_name;
-
-  if (NULL == plugin)
-    return;
-  lib_name = plugin->library_name;
-  GNUNET_assert (NULL == GNUNET_PLUGIN_unload (lib_name,
-                                               plugin));
-  GNUNET_free (lib_name);
-}
-
-
-
-/* end of mintdb_plugin.c */
diff --git a/src/mintdb/perf_taler_mintdb.c b/src/mintdb/perf_taler_mintdb.c
deleted file mode 100644
index fbaa2ce34..000000000
--- a/src/mintdb/perf_taler_mintdb.c
+++ /dev/null
@@ -1,358 +0,0 @@
-/*
-   This file is part of TALER
-   Copyright (C) 2014, 2015 GNUnet e.V.
-
-   TALER is free software; you can redistribute it and/or modify it under the
-   terms of the GNU General Public License as published by the Free Software
-   Foundation; either version 3, or (at your option) any later version.
-
-   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License along with
-   TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-   */
-/**
- * @file mintdb/perf_taler_mintdb.c
- * @brief Mint database performance analysis
- * @author Nicolas Fournier
- */
-#include "platform.h"
-#include "perf_taler_mintdb_interpreter.h"
-
-
-#define NB_DENOMINATION_INIT  15
-#define NB_DENOMINATION_SAVE  15
-
-#define SMALL 1000
-#define BIG 10000
-#define BIGGER 100000
-
-#define NB_RESERVE_INIT   BIGGER
-#define NB_RESERVE_SAVE   BIG
-
-#define NB_DEPOSIT_INIT   BIGGER
-#define NB_DEPOSIT_SAVE   BIG
-
-#define NB_WITHDRAW_INIT  BIGGER
-#define NB_WITHDRAW_SAVE  BIG
-
-#define NB_REFRESH_INIT BIGGER
-#define NB_REFRESH_SAVE BIG
-
-#define NB_MELT_INIT BIG
-#define NB_MELT_SAVE SMALL
-
-/**
- * Runs the performances tests for the mint database
- * and logs the results using Gauger
- */
-int
-main (int argc, char ** argv)
-{
-  int ret;
-  struct PERF_TALER_MINTDB_Cmd benchmark[] =
-  {
-    /* Denomination used to create coins */
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("Initializing database"),
-
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("01 - denomination loop",
-                                     NB_DENOMINATION_INIT),
-    PERF_TALER_MINTDB_INIT_CMD_START_TRANSACTION (""),
-    PERF_TALER_MINTDB_INIT_CMD_CREATE_DENOMINATION ("01 - denomination"),
-    PERF_TALER_MINTDB_INIT_CMD_INSERT_DENOMINATION ("01 - insert",
-                                                    "01 - denomination"),
-    PERF_TALER_MINTDB_INIT_CMD_COMMIT_TRANSACTION (""),
-    PERF_TALER_MINTDB_INIT_CMD_SAVE_ARRAY ("01 - save denomination",
-                                           "01 - denomination loop",
-                                           "01 - denomination",
-                                           NB_DENOMINATION_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("01 - end",
-                                         "01 - denomination loop"),
-    /* End of initialization */
-    /* Reserve initialization */
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("02 - init reserve loop",
-                                     NB_RESERVE_INIT),
-    PERF_TALER_MINTDB_INIT_CMD_CREATE_RESERVE ("02 - reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_INSERT_RESERVE ("02 - insert",
-                                               "02 - reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_SAVE_ARRAY ("02 - save reserve",
-                                           "02 - init reserve loop",
-                                           "02 - reserve",
-                                           NB_RESERVE_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("02 - end",
-                                         "02 - init reserve loop"),
-    /* End reserve init */
-    /* Withdrawal initialization */
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("03 - init withdraw loop",
-                                     NB_WITHDRAW_INIT),
-    PERF_TALER_MINTDB_INIT_CMD_START_TRANSACTION (""),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("03 - denomination load",
-                                           "03 - init withdraw loop",
-                                           "01 - save denomination"),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("03 - reserve load",
-                                           "03 - init withdraw loop",
-                                           "02 - save reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_CREATE_WITHDRAW ("03 - withdraw",
-                                                "03 - denomination load",
-                                                "03 - reserve load"),
-    PERF_TALER_MINTDB_INIT_CMD_INSERT_WITHDRAW ("03 - insert",
-                                                "03 - withdraw"),
-    PERF_TALER_MINTDB_INIT_CMD_COMMIT_TRANSACTION (""),
-    PERF_TALER_MINTDB_INIT_CMD_SAVE_ARRAY ("03 - save coin",
-                                           "03 - init withdraw loop",
-                                           "03 - withdraw",
-                                           NB_WITHDRAW_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("03 - end",
-                                         "03 - init withdraw loop"),
-    /*End of withdrawal initialization */
-    /*Deposit initialization */
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("04 - deposit init loop",
-                                     NB_DEPOSIT_INIT),
-    PERF_TALER_MINTDB_INIT_CMD_START_TRANSACTION (""),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("04 - coin load",
-                                           "04 - deposit init loop",
-                                           "03 - save coin"),
-    PERF_TALER_MINTDB_INIT_CMD_CREATE_DEPOSIT ("04 - deposit",
-                                               "04 - coin load"),
-    PERF_TALER_MINTDB_INIT_CMD_INSERT_DEPOSIT ("04 - insert",
-                                               "04 - deposit"),
-    PERF_TALER_MINTDB_INIT_CMD_COMMIT_TRANSACTION (""),
-    PERF_TALER_MINTDB_INIT_CMD_SAVE_ARRAY ("04 - deposit array",
-                                           "04 - deposit init loop",
-                                           "04 - deposit",
-                                           NB_DEPOSIT_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("",
-                                         "04 - deposit init loop"),
-    /* End of deposit initialization */
-    /* Session initialization */
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("05 - refresh session init loop",
-                                     NB_REFRESH_INIT),
-    PERF_TALER_MINTDB_INIT_CMD_START_TRANSACTION (""),
-    PERF_TALER_MINTDB_INIT_CMD_CREATE_REFRESH_SESSION ("05 - refresh session"),
-    PERF_TALER_MINTDB_INIT_CMD_SAVE_ARRAY ("05 - session array",
-                                           "05 - refresh session init loop",
-                                           "05 - refresh session",
-                                           NB_RESERVE_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_COMMIT_TRANSACTION (""),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("05 - end",
-                                         "05 - refresh session init loop"),
-    /* End of refresh session initialization */
-    /* Refresh melt initialization */
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("06 - refresh melt init loop",
-                                     NB_MELT_INIT),
-    PERF_TALER_MINTDB_INIT_CMD_START_TRANSACTION (""),
-    /* TODO: initialize using coins & sessions created localy 
-     * in order to make sure the same coin are not melted twice*/
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("06 - session hash",
-                                           "06 - refresh melt init loop",
-                                           "05 - session array"),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("06 - coin",
-                                           "06 - refresh melt init loop",
-                                           "03 - save coin"),
-    PERF_TALER_MINTDB_INIT_CMD_INSERT_REFRESH_MELT ("06 - refresh melt",
-                                                    "06 - session hash",
-                                                    "06 - coin"),
-    PERF_TALER_MINTDB_INIT_CMD_COMMIT_TRANSACTION (""),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("06 - end",
-                                         "06 - refresh melt init loop"),
-    /* End of refresh melt initialization */
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("End of initialization"),
-
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("Start of performances measuring"),
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("21 - start"),
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("21 - reserve insert measure",
-                                     NB_RESERVE_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_CREATE_RESERVE ("21 - reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_INSERT_RESERVE ("21 - insert",
-                                               "21 - reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("",
-                                         "21 - reserve insert measure"),
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("21 - stop"),
-    PERF_TALER_MINTDB_INIT_CMD_GAUGER ("21 - gauger",
-                                       "21 - start",
-                                       "21 - stop",
-                                       "POSTGRES",
-                                       "Number of reserve inserted per second",
-                                       "item/sec",
-                                       NB_RESERVE_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("End of reserve insertion"),
-
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("22 - start"),
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("22 - reserve load measure",
-                                     NB_RESERVE_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("22 - reserve",
-                                           "22 - reserve load measure",
-                                           "02 - save reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_GET_RESERVE ("22 - get",
-                                            "22 - reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("",
-                                         "22 - reserve load measure"),
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("22 - stop"),
-    PERF_TALER_MINTDB_INIT_CMD_GAUGER ("",
-                                       "22 - start",
-                                       "22 - stop",
-                                       "POSTGRES",
-                                       "Number of reserve loaded per second",
-                                       "item/sec",
-                                       NB_RESERVE_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("End of reserve retreival"),
-
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("23 - start"),
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("23 - reserve history measure",
-                                     NB_RESERVE_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("23 - reserve",
-                                           "23 - reserve history measure",
-                                           "02 - save reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_GET_RESERVE_HISTORY ("",
-                                                    "23 - reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("",
-                                         "23 - reserve history measure"),
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("23 - stop"),
-    PERF_TALER_MINTDB_INIT_CMD_GAUGER ("",
-                                       "23 - start",
-                                       "23 - stop",
-                                       "POSTGRES",
-                                       "Number of reserve history loaded per second",
-                                       "item/sec",
-                                       NB_RESERVE_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("End of reserve history access"),
-
-
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("24 - start"),
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("24 - withdraw insert measure",
-                                     NB_WITHDRAW_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("24 - reserve",
-                                           "24 - withdraw insert measure",
-                                           "02 - save reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("24 - denomination",
-                                           "24 - withdraw insert measure",
-                                           "01 - save denomination"),
-    PERF_TALER_MINTDB_INIT_CMD_CREATE_WITHDRAW ("24 - withdraw",
-                                                "24 - denomination",
-                                                "24 - reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_INSERT_WITHDRAW ("24 - insert",
-                                                "24 - withdraw"),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("",
-                                         "24 - withdraw insert measure"),
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("24 - stop"),
-    PERF_TALER_MINTDB_INIT_CMD_GAUGER ("",
-                                       "24 - start",
-                                       "24 - stop",
-                                       "POSTGRES",
-                                       "Number of withdraw insert per second",
-                                       "item/sec",
-                                       NB_WITHDRAW_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("End of withdraw insertion"),
-
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("25 - start"),
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("25 - withdraw insert measure",
-                                     NB_RESERVE_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("25 - coin",
-                                           "25 - withdraw insert measure",
-                                           "03 - save coin"),
-    PERF_TALER_MINTDB_INIT_CMD_GET_WITHDRAW ("",
-                                             "25 - coin"),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("",
-                                         "25 - withdraw insert measure"),
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("25 - stop"),
-    PERF_TALER_MINTDB_INIT_CMD_GAUGER ("",
-                                       "25 - start",
-                                       "25 - stop",
-                                       "POSTGRES",
-                                       "Number of withdraw loaded per second",
-                                       "item/sec",
-                                       NB_RESERVE_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("End of withdraw loading"),
-
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("26 - start"),
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("26 - get coin transaction",
-                                     NB_WITHDRAW_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("26 - coin",
-                                           "26 - get coin transaction",
-                                           "03 - save coin"),
-    PERF_TALER_MINTDB_INIT_CMD_GET_COIN_TRANSACTION("",
-                                                    "26 - coin"),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("",
-                                         "26 - get coin transaction"),
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("26 - end"),
-    PERF_TALER_MINTDB_INIT_CMD_GAUGER ("",
-                                       "26 - start",
-                                       "26 - end",
-                                       "POSTGRES",
-                                       "Number of coin transaction history loaded per second",
-                                       "item/sec",
-                                       NB_WITHDRAW_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("End of transaction loading"),
-
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("27 - start"),
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("27 - /reserve/withdraw",
-                                     NB_WITHDRAW_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("27 - reserve",
-                                           "27 - /reserve/withdraw",
-                                           "02 - save reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("27 - dki",
-                                           "27 - /reserve/withdraw",
-                                           "01 - save denomination"),
-    PERF_TALER_MINTDB_INIT_CMD_WITHDRAW_SIGN ("",
-                                              "27 - dki",
-                                              "27 - reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("",
-                                         "27 - /reserve/withdraw"),
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("27 - end"),
-    PERF_TALER_MINTDB_INIT_CMD_GAUGER ("",
-                                       "27 - start",
-                                       "27 - end",
-                                       "POSTGRES",
-                                       "Number of /reserve/withdraw per second",
-                                       "item/sec",
-                                       NB_WITHDRAW_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("End of /reserve/withdraw"),
-
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("28 - start"),
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("28 - /deposit",
-                                     NB_DEPOSIT_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("28 - coin",
-                                           "28 - /deposit",
-                                           "03 - save coin"),
-    PERF_TALER_MINTDB_INIT_CMD_DEPOSIT ("28 - deposit",
-                                        "28 - coin"),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("",
-                                         "28 - /deposit"),
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("28 - stop"),
-    PERF_TALER_MINTDB_INIT_CMD_GAUGER ("",
-                                       "28 - start",
-                                       "28 - stop",
-                                       "POSTGRES",
-                                       "Number of /deposit per second",
-                                       "item/sec",
-                                       NB_DEPOSIT_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("29 - start"),
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("29 - insert refresh session",
-                                     NB_REFRESH_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_START_TRANSACTION (""),
-    PERF_TALER_MINTDB_INIT_CMD_CREATE_REFRESH_SESSION (""),
-    PERF_TALER_MINTDB_INIT_CMD_COMMIT_TRANSACTION (""),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("",
-                                         "29 - insert refresh session"),
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("29 - stop"),
-    PERF_TALER_MINTDB_INIT_CMD_GAUGER ("",
-                                       "29 - start",
-                                       "29 - stop",
-                                       "POSTGRES",
-                                       "Number of refresh session inserted per second",
-                                       "item/sec",
-                                       NB_REFRESH_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_END (""),
-  };
-
-  ret = PERF_TALER_MINTDB_run_benchmark (
-    "perf-taler-mintdb",
-    "./test-mint-db-postgres.conf",
-    (struct PERF_TALER_MINTDB_Cmd []) {PERF_TALER_MINTDB_INIT_CMD_END("")},
-    benchmark);
-  if (GNUNET_SYSERR == ret)
-    return 1;
-  return 0;
-}
diff --git a/src/mintdb/perf_taler_mintdb_init.c b/src/mintdb/perf_taler_mintdb_init.c
deleted file mode 100644
index ccfc6a05a..000000000
--- a/src/mintdb/perf_taler_mintdb_init.c
+++ /dev/null
@@ -1,622 +0,0 @@
-/*
-   This file is part of TALER
-   Copyright (C) 2014, 2015 GNUnet e.V.
-
-   TALER is free software; you can redistribute it and/or modify it under the
-   terms of the GNU General Public License as published by the Free Software
-   Foundation; either version 3, or (at your option) any later version.
-
-   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License along with
-   TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-   */
-/**
- * @file mintdb/perf_taler_mintdb_init.c
- * @brief Interpreter library for mint database performance analysis
- * @author Nicolas Fournier
- */
-#include "platform.h"
-#include "perf_taler_mintdb_init.h"
-#include <gnunet/gnunet_signatures.h>
-#include "taler_signatures.h"
-#include "taler_amount_lib.h"
-
-
-#define CURRENCY "EUR"
-#define PERF_TALER_MINTDB_RSA_SIZE 512
-
-
-/**
- * Generate a dummy DenominationKeyInformation for testing purposes
- * @return a dummy denomination key
- */
-struct TALER_MINTDB_DenominationKeyIssueInformation *
-PERF_TALER_MINTDB_denomination_init ()
-{
-  struct GNUNET_CRYPTO_EddsaPrivateKey *master_prvt;
-  struct TALER_MINTDB_DenominationKeyIssueInformation *dki;
-  struct TALER_DenominationPrivateKey denom_priv;
-  struct TALER_DenominationPublicKey denom_pub;
-  struct TALER_MINTDB_DenominationKeyInformationP issue;
-
-  master_prvt = GNUNET_CRYPTO_eddsa_key_create();
-
-  dki = GNUNET_new (struct TALER_MINTDB_DenominationKeyIssueInformation);
-  GNUNET_assert (NULL != dki);
-  denom_priv.rsa_private_key
-    = GNUNET_CRYPTO_rsa_private_key_create (PERF_TALER_MINTDB_RSA_SIZE);
-  GNUNET_assert (NULL != denom_priv.rsa_private_key);
-  denom_pub.rsa_public_key =
-    GNUNET_CRYPTO_rsa_private_key_get_public (denom_priv.rsa_private_key);
-  GNUNET_assert (NULL != denom_pub.rsa_public_key);
-  {/* issue */
-    struct TALER_MasterSignatureP signature;
-    struct TALER_DenominationKeyValidityPS properties;
-
-    {/* properties */
-      struct TALER_Amount amount;
-
-      properties.purpose.purpose = htonl (TALER_SIGNATURE_MASTER_SIGNING_KEY_VALIDITY);
-      properties.purpose.size = htonl (sizeof (struct TALER_DenominationKeyValidityPS));
-      GNUNET_CRYPTO_eddsa_key_get_public (master_prvt,
-                                          &properties.master.eddsa_pub);
-      properties.start = GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get());
-      properties.expire_withdraw = GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get_forever_());
-      properties.expire_spend = GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get_forever_());
-      properties.expire_legal = GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get_forever_());
-      GNUNET_assert (GNUNET_OK ==
-                     TALER_string_to_amount (CURRENCY ":1.1", &amount));
-      TALER_amount_hton (&properties.value, &amount);
-      GNUNET_assert (GNUNET_OK ==
-                     TALER_string_to_amount (CURRENCY ":0.1", &amount));
-      TALER_amount_hton (&properties.fee_withdraw, &amount);
-      TALER_amount_hton (&properties.fee_deposit, &amount);
-      TALER_amount_hton (&properties.fee_refresh, &amount);
-      GNUNET_CRYPTO_rsa_public_key_hash (denom_pub.rsa_public_key,
-                                         &properties.denom_hash);
-      issue.properties = properties;
-    }
-    {/* signature */
-      GNUNET_CRYPTO_eddsa_sign (master_prvt,
-                                &properties.purpose,
-                                &signature.eddsa_signature);
-      issue.signature = signature;
-    }
-  }
-  dki->denom_priv = denom_priv;
-  dki->denom_pub = denom_pub;
-  dki->issue = issue;
-  GNUNET_free (master_prvt);
-  return dki;
-}
-
-
-/**
- * Copies the given denomination
- * @param reserve the deposit copy
- * @return a copy of @a deposit; NULL if error
- */
-struct TALER_MINTDB_DenominationKeyIssueInformation *
-PERF_TALER_MINTDB_denomination_copy (const struct TALER_MINTDB_DenominationKeyIssueInformation *dki)
-{
-  struct TALER_MINTDB_DenominationKeyIssueInformation *copy;
-
-  GNUNET_assert (NULL !=
-                 (copy = GNUNET_new (struct TALER_MINTDB_DenominationKeyIssueInformation)));
-  {/* denom_priv */
-    copy->denom_priv.rsa_private_key =
-      GNUNET_CRYPTO_rsa_private_key_dup ( dki->denom_priv.rsa_private_key);
-  }
-  {/* denom_pub */
-    copy->denom_pub.rsa_public_key =
-      GNUNET_CRYPTO_rsa_public_key_dup (dki->denom_pub.rsa_public_key);
-  }
-  {/* issue */
-    copy->issue.properties = dki->issue.properties;
-    copy->issue.signature = dki->issue.signature;
-  }
-  return copy;
-}
-
-
-/**
- * Free memory of a DenominationKeyIssueInformation
- * @param dki pointer to the struct to free
- */
-int
-PERF_TALER_MINTDB_denomination_free (struct TALER_MINTDB_DenominationKeyIssueInformation *dki)
-{
-  if (NULL == dki)
-    return GNUNET_OK;
-  GNUNET_CRYPTO_rsa_private_key_free (dki->denom_priv.rsa_private_key);
-  GNUNET_CRYPTO_rsa_public_key_free (dki->denom_pub.rsa_public_key);
-
-  GNUNET_free (dki);
-  return GNUNET_OK;
-}
-
-
-/**
- * Generate a dummy reserve for testing
- * @return a reserve with 1000 EUR in it
- */
-struct PERF_TALER_MINTDB_Reserve *
-PERF_TALER_MINTDB_reserve_init ()
-{
-  struct PERF_TALER_MINTDB_Reserve *reserve;
-
-  GNUNET_assert (NULL !=
-                 (reserve = GNUNET_new (struct PERF_TALER_MINTDB_Reserve)));
-  {/* private */
-    struct GNUNET_CRYPTO_EddsaPrivateKey *private;
-    private = GNUNET_CRYPTO_eddsa_key_create ();
-    GNUNET_assert (NULL != private);
-    reserve->private = *private;
-    GNUNET_free (private);
-  }
-
-  GNUNET_CRYPTO_eddsa_key_get_public (&reserve->private,
-                                      &reserve->reserve.pub.eddsa_pub);
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_string_to_amount (CURRENCY ":1000", &reserve->reserve.balance));
-  reserve->reserve.expiry = GNUNET_TIME_absolute_get_forever_ ();
-  return reserve;
-}
-
-
-/**
- * Copies the given reserve
- * @param reserve the reserve to copy
- * @return a copy of @a reserve; NULL if error
- */
-struct PERF_TALER_MINTDB_Reserve *
-PERF_TALER_MINTDB_reserve_copy (const struct PERF_TALER_MINTDB_Reserve *reserve)
-{
-  struct PERF_TALER_MINTDB_Reserve *copy;
-  GNUNET_assert (NULL !=
-                 (copy = GNUNET_new (struct PERF_TALER_MINTDB_Reserve)));
-  *copy = *reserve;
-  return copy;
-}
-
-
-/**
- * Free memory of a reserve
- * @param reserve pointer to the structure to be freed
- */
-int
-PERF_TALER_MINTDB_reserve_free (struct PERF_TALER_MINTDB_Reserve *reserve)
-{
-  if (NULL == reserve)
-    return GNUNET_OK;
-  GNUNET_free (reserve);
-  return GNUNET_OK;
-}
-
-
-/**
- * Generate a dummy deposit for testing purposes
- * @param dki the denomination key used to sign the key
- */
-struct TALER_MINTDB_Deposit *
-PERF_TALER_MINTDB_deposit_init (const struct PERF_TALER_MINTDB_Coin *coin)
-{
-  struct TALER_MINTDB_Deposit *deposit;
-  struct TALER_CoinSpendSignatureP csig;
-  struct TALER_MerchantPublicKeyP merchant_pub;
-  struct GNUNET_HashCode h_contract;
-  struct GNUNET_HashCode h_wire;
-  const char wire[] = "{"
-    "\"type\":\"SEPA\","
-    "\"IBAN\":\"DE67830654080004822650\","
-    "\"NAME\":\"GNUNET E.\","
-    "\"BIC\":\"GENODEF1SRL\""
-    "}";
-  static uint64_t transaction_id = 0;
-  struct GNUNET_TIME_Absolute timestamp;
-  struct GNUNET_TIME_Absolute refund_deadline;
-  struct TALER_Amount amount_with_fee;
-  struct TALER_Amount deposit_fee;
-
-  GNUNET_assert (NULL !=
-                 (deposit = GNUNET_malloc (sizeof (struct TALER_MINTDB_Deposit) + sizeof (wire))));
-  GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK,
-                                    &h_contract);
-  GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK,
-                                    &h_wire);
-  { //csig
-    struct u32_presign
-    {
-      struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
-      struct GNUNET_HashCode h_wire;
-      struct GNUNET_HashCode h_contract;
-    } unsigned_data;
-
-    unsigned_data.h_contract = h_contract;
-    unsigned_data.h_wire = h_wire;
-    unsigned_data.purpose.size = htonl (sizeof (struct u32_presign));
-    unsigned_data.purpose.purpose = htonl (GNUNET_SIGNATURE_PURPOSE_TEST);
-    GNUNET_assert (GNUNET_OK ==
-                   GNUNET_CRYPTO_eddsa_sign (&coin->priv,
-                                             &unsigned_data.purpose,
-                                             &csig.eddsa_signature));
-  }
-  { //merchant_pub
-    struct GNUNET_CRYPTO_EddsaPrivateKey *eddsa_prv;
-
-    eddsa_prv = GNUNET_CRYPTO_eddsa_key_create ();
-    GNUNET_assert(NULL != eddsa_prv);
-    GNUNET_CRYPTO_eddsa_key_get_public (
-      eddsa_prv,
-      &merchant_pub.eddsa_pub);
-    GNUNET_free (eddsa_prv);
-  }
-  timestamp = GNUNET_TIME_absolute_get ();
-  refund_deadline = GNUNET_TIME_absolute_get ();
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_string_to_amount (CURRENCY ":1.1",
-                                         &amount_with_fee));
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_string_to_amount (CURRENCY ":0.1",
-                                         &deposit_fee));
-  {
-    deposit->coin.coin_pub = coin->public_info.coin_pub;
-    deposit->coin.denom_pub.rsa_public_key = GNUNET_CRYPTO_rsa_public_key_dup (
-      coin->public_info.denom_pub.rsa_public_key);
-    GNUNET_assert (NULL != coin->public_info.denom_pub.rsa_public_key);
-    deposit->coin.denom_sig.rsa_signature = GNUNET_CRYPTO_rsa_signature_dup (
-      coin->public_info.denom_sig.rsa_signature);
-    GNUNET_assert (NULL != coin->public_info.denom_sig.rsa_signature);
-  }
-  deposit->csig = csig;
-  deposit->h_contract = h_contract;
-  deposit->h_wire = h_wire;
-  deposit->wire = json_loads (wire, 0, NULL);
-  deposit->transaction_id = transaction_id++;
-  deposit->timestamp = timestamp;
-  deposit->refund_deadline = refund_deadline;
-  deposit->amount_with_fee = amount_with_fee;
-  deposit->deposit_fee = deposit_fee;
-  return deposit;
-}
-
-
-/**
- * Copies the given deposit
- * @param reserve the deposit copy
- * @return a copy of @a deposit; NULL if error
- */
-struct TALER_MINTDB_Deposit *
-PERF_TALER_MINTDB_deposit_copy (const struct TALER_MINTDB_Deposit *deposit)
-{
-  struct TALER_MINTDB_Deposit *copy;
-
-  copy = GNUNET_new (struct TALER_MINTDB_Deposit);
-  *copy = *deposit;
-  json_incref (copy->wire);
-  copy->coin.denom_pub.rsa_public_key =
-    GNUNET_CRYPTO_rsa_public_key_dup (deposit->coin.denom_pub.rsa_public_key);
-  copy->coin.denom_sig.rsa_signature =
-    GNUNET_CRYPTO_rsa_signature_dup (deposit->coin.denom_sig.rsa_signature);
-  return copy;
-}
-
-
-/**
- * Free memory of a deposit
- * @param deposit pointer to the structure to free
- */
-int
-PERF_TALER_MINTDB_deposit_free (struct TALER_MINTDB_Deposit *deposit)
-{
-  if (NULL == deposit)
-    return GNUNET_OK;
-  GNUNET_CRYPTO_rsa_public_key_free (deposit->coin.denom_pub.rsa_public_key);
-  GNUNET_CRYPTO_rsa_signature_free (deposit->coin.denom_sig.rsa_signature);
-  json_decref (deposit->wire);
-  GNUNET_free (deposit);
-  return GNUNET_OK;
-}
-
-
-/**
- * Generate a CollectableBlindcoin for testing purpuses
- * @param dki denomination key used to sign the coin
- * @param reserve reserve providing the money for the coin
- * @return a randomly generated CollectableBlindcoin
- */
-struct PERF_TALER_MINTDB_Coin *
-PERF_TALER_MINTDB_coin_init (
-  const struct TALER_MINTDB_DenominationKeyIssueInformation *dki,
-  const struct PERF_TALER_MINTDB_Reserve *reserve)
-{
-  struct PERF_TALER_MINTDB_Coin *coin;
-  struct GNUNET_CRYPTO_EddsaPrivateKey *priv;
-
-  coin = GNUNET_new (struct PERF_TALER_MINTDB_Coin);
-  GNUNET_assert (NULL != coin);
-  /* priv */
-
-  priv = GNUNET_CRYPTO_eddsa_key_create();
-  GNUNET_assert (NULL != priv);
-  coin->priv = *priv;
-  GNUNET_free (priv);
-
-  /* public_info */
-  GNUNET_CRYPTO_eddsa_key_get_public (&coin->priv,
-                                      &coin->public_info.coin_pub.eddsa_pub);
-  coin->public_info.denom_pub.rsa_public_key =
-    GNUNET_CRYPTO_rsa_public_key_dup (dki->denom_pub.rsa_public_key);
-  coin->public_info.denom_sig.rsa_signature =
-    GNUNET_CRYPTO_rsa_sign (dki->denom_priv.rsa_private_key,
-                            &coin->public_info.coin_pub,
-                            sizeof (struct TALER_CoinSpendPublicKeyP));
-  GNUNET_assert (NULL != coin->public_info.denom_pub.rsa_public_key);
-  GNUNET_assert (NULL != coin->public_info.denom_sig.rsa_signature);
-
-  /* blind */
-  coin->blind.sig.rsa_signature =
-    GNUNET_CRYPTO_rsa_signature_dup (coin->public_info.denom_sig.rsa_signature);
-  coin->blind.denom_pub.rsa_public_key =
-    GNUNET_CRYPTO_rsa_public_key_dup (dki->denom_pub.rsa_public_key);
-  GNUNET_assert (NULL != coin->blind.sig.rsa_signature);
-  GNUNET_assert (NULL != coin->blind.denom_pub.rsa_public_key);
-  TALER_amount_ntoh (&coin->blind.amount_with_fee,
-                     &dki->issue.properties.value);
-  TALER_amount_ntoh (&coin->blind.withdraw_fee,
-                     &dki->issue.properties.fee_withdraw);
-  coin->blind.reserve_pub = reserve->reserve.pub;
-  GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK,
-                                    &coin->blind.h_coin_envelope);
-
-  return coin;
-}
-
-
-/**
- * Copies the given coin
- *
- * @param coin the coin to copy
- * @return a copy of coin; NULL if error
- */
-struct PERF_TALER_MINTDB_Coin *
-PERF_TALER_MINTDB_coin_copy (const struct PERF_TALER_MINTDB_Coin *coin)
-{
-  struct PERF_TALER_MINTDB_Coin *copy;
-
-  copy = GNUNET_new (struct PERF_TALER_MINTDB_Coin);
-  /* priv */
-  copy->priv = coin->priv;
-  /* public_info */
-  copy->public_info.coin_pub = coin->public_info.coin_pub;
-  copy->public_info.denom_pub.rsa_public_key =
-    GNUNET_CRYPTO_rsa_public_key_dup (coin->public_info.denom_pub.rsa_public_key);
-  copy->public_info.denom_sig.rsa_signature =
-    GNUNET_CRYPTO_rsa_signature_dup (coin->public_info.denom_sig.rsa_signature);
-
-  /* blind */
-  copy->blind.sig.rsa_signature =
-    GNUNET_CRYPTO_rsa_signature_dup (coin->blind.sig.rsa_signature);
-  copy->blind.denom_pub.rsa_public_key =
-    GNUNET_CRYPTO_rsa_public_key_dup (coin->blind.denom_pub.rsa_public_key);
-  copy->blind.amount_with_fee = coin->blind.amount_with_fee;
-  copy->blind.withdraw_fee = coin->blind.withdraw_fee;
-  copy->blind.reserve_pub = coin->blind.reserve_pub;
-  copy->blind.h_coin_envelope = coin->blind.h_coin_envelope;
-  copy->blind.reserve_sig = coin->blind.reserve_sig;
-
-  return copy;
-}
-
-
-/**
- * Free memory of @a coin
- *
- * @param coin pointer to the structure to free
- */
-int
-PERF_TALER_MINTDB_coin_free (struct PERF_TALER_MINTDB_Coin *coin)
-{
-  if (NULL == coin)
-    return GNUNET_OK;
-  GNUNET_CRYPTO_rsa_public_key_free (coin->public_info.denom_pub.rsa_public_key);
-  GNUNET_CRYPTO_rsa_signature_free (coin->public_info.denom_sig.rsa_signature);
-  GNUNET_CRYPTO_rsa_signature_free (coin->blind.sig.rsa_signature);
-  GNUNET_CRYPTO_rsa_public_key_free (coin->blind.denom_pub.rsa_public_key);
-  GNUNET_free (coin);
-  return GNUNET_OK;
-}
-
-
-/**
- * @return a randomly generated refresh session
- */
-struct TALER_MINTDB_RefreshSession *
-PERF_TALER_MINTDB_refresh_session_init ()
-{
-  struct TALER_MINTDB_RefreshSession *refresh_session;
-
-  GNUNET_assert (NULL !=
-                 (refresh_session = GNUNET_new (struct TALER_MINTDB_RefreshSession)));
-  refresh_session->noreveal_index = 1;
-  refresh_session->num_oldcoins = 1;
-  refresh_session->num_newcoins = 1;
-
-  return refresh_session;
-}
-
-
-/**
- * @return #GNUNET_OK if the copy was successful, #GNUNET_SYSERR if it wasn't
- */
-int
-PERF_TALER_MINTDB_refresh_session_copy (struct TALER_MINTDB_RefreshSession *session,
-                                        struct TALER_MINTDB_RefreshSession *copy)
-{
-  *copy = *session;
-  return GNUNET_OK;
-}
-
-
-/**
- * Free a refresh session
- */
-int
-PERF_TALER_MINTDB_refresh_session_free (struct TALER_MINTDB_RefreshSession *refresh_session)
-{
-  if (NULL == refresh_session)
-    return GNUNET_OK;
-  GNUNET_free (refresh_session);
-  return GNUNET_OK;
-}
-
-
-/**
- * Create a melt operation
- *
- * @param session the refresh session
- * @param dki the denomination the melted coin uses
- * @return a pointer to a #TALER_MINTDB_RefreshMelt
- */
-struct TALER_MINTDB_RefreshMelt *
-PERF_TALER_MINTDB_refresh_melt_init (struct GNUNET_HashCode *session,
-                                     struct PERF_TALER_MINTDB_Coin *coin)
-{
-  struct TALER_MINTDB_RefreshMelt *melt;
-  struct TALER_CoinSpendSignatureP coin_sig;
-  struct TALER_Amount amount;
-  struct TALER_Amount amount_with_fee;
-
-  {
-    struct
-    {
-      struct GNUNET_CRYPTO_EccSignaturePurpose purpose;
-      struct GNUNET_HashCode session;
-    } to_sign;
-
-    to_sign.purpose.purpose = GNUNET_SIGNATURE_PURPOSE_TEST;
-    to_sign.purpose.size = htonl (sizeof (to_sign));
-    to_sign.session = *session;
-    GNUNET_CRYPTO_eddsa_sign (&coin->priv,
-                              &to_sign.purpose,
-                              &coin_sig.eddsa_signature);
-  }
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_string_to_amount (CURRENCY ":1.1",
-                                         &amount));
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_string_to_amount (CURRENCY ":0.1",
-                                         &amount_with_fee));
-  melt = GNUNET_new (struct TALER_MINTDB_RefreshMelt);
-  melt->coin.coin_pub = coin->public_info.coin_pub;
-  melt->coin.denom_sig.rsa_signature =
-    GNUNET_CRYPTO_rsa_signature_dup (coin->public_info.denom_sig.rsa_signature);
-  melt->coin.denom_pub.rsa_public_key =
-    GNUNET_CRYPTO_rsa_public_key_dup (coin->public_info.denom_pub.rsa_public_key);
-  GNUNET_assert (NULL != melt->coin.denom_pub.rsa_public_key);
-  GNUNET_assert (NULL != melt->coin.denom_sig.rsa_signature);
-  melt->coin_sig = coin_sig;
-  melt->session_hash = *session;
-  melt->amount_with_fee = amount;
-  melt->melt_fee = amount_with_fee;
-  return melt;
-}
-
-
-/**
- * Copies the internals of a #TALER_MINTDB_RefreshMelt
- *
- * @param melt the refresh melt to copy
- * @return an copy of @ melt
- */
-struct TALER_MINTDB_RefreshMelt *
-PERF_TALER_MINTDB_refresh_melt_copy (const struct TALER_MINTDB_RefreshMelt *melt)
-{
-  struct TALER_MINTDB_RefreshMelt *copy;
-
-  copy = GNUNET_new (struct TALER_MINTDB_RefreshMelt);
-  *copy = *melt;
-  copy->coin.denom_sig.rsa_signature =
-    GNUNET_CRYPTO_rsa_signature_dup (melt->coin.denom_sig.rsa_signature);
-  GNUNET_assert (NULL != copy->coin.denom_sig.rsa_signature);
-
-  return copy;
-}
-
-
-/**
- * Free the internal memory of a #TALER_MINTDB_RefreshMelt
- *
- * @param melt the #TALER_MINTDB_RefreshMelt to free
- * @return #GNUNET_OK if the operation was successful, #GNUNET_SYSERROR
- */
-int
-PERF_TALER_MINTDB_refresh_melt_free (struct TALER_MINTDB_RefreshMelt *melt)
-{
-  GNUNET_CRYPTO_rsa_signature_free (melt->coin.denom_sig.rsa_signature);
-  GNUNET_free (melt);
-  return GNUNET_OK;
-}
-
-
-/**
- * Create a #TALER_MINTDB_RefreshCommitCoin
- */
-struct TALER_MINTDB_RefreshCommitCoin *
-PERF_TALER_MINTDB_refresh_commit_coin_init ()
-{
-  struct TALER_MINTDB_RefreshCommitCoin *commit_coin;
-  struct TALER_RefreshLinkEncrypted refresh_link;
-
-  commit_coin = GNUNET_new (struct TALER_MINTDB_RefreshCommitCoin);
-  GNUNET_assert (NULL != commit_coin);
-  {/* refresh_link */
-    refresh_link = (struct TALER_RefreshLinkEncrypted)
-    {
-      .blinding_key_enc = "blinding_key",
-      .blinding_key_enc_size = 13
-    };
-    GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
-                                &refresh_link.coin_priv_enc,
-                                sizeof(struct TALER_CoinSpendPrivateKeyP));
-  }
-  commit_coin->coin_ev = "coin_ev";
-  commit_coin->coin_ev_size = 8;
-  commit_coin->refresh_link = GNUNET_new (struct TALER_RefreshLinkEncrypted);
-  *commit_coin->refresh_link = refresh_link;
-  return commit_coin;
-}
-
-
-/**
- * Copies a #TALER_MINTDB_RefreshCommitCoin
- *
- * @param commit_coin the commit to copy
- * @return a copy of @a commit_coin
- */
-struct TALER_MINTDB_RefreshCommitCoin *
-PERF_TALER_MINTDB_refresh_commit_coin_copy (struct TALER_MINTDB_RefreshCommitCoin *commit_coin)
-{
-  struct TALER_MINTDB_RefreshCommitCoin *copy;
-
-  copy = GNUNET_new (struct TALER_MINTDB_RefreshCommitCoin);
-  copy->refresh_link = GNUNET_new (struct TALER_RefreshLinkEncrypted);
-  *copy->refresh_link = *commit_coin->refresh_link;
-  return copy;
-}
-
-
-/**
- * Free a #TALER_MINTDB_RefreshCommitCoin
- *
- * @param commit_coin the coin to free
- */
-void
-PERF_TALER_MINTDB_refresh_commit_coin_free (struct TALER_MINTDB_RefreshCommitCoin *commit_coin)
-{
-  GNUNET_free (commit_coin->refresh_link);
-  GNUNET_free (commit_coin);
-}
diff --git a/src/mintdb/perf_taler_mintdb_init.h b/src/mintdb/perf_taler_mintdb_init.h
deleted file mode 100644
index f94beef10..000000000
--- a/src/mintdb/perf_taler_mintdb_init.h
+++ /dev/null
@@ -1,257 +0,0 @@
-/*
-   This file is part of TALER
-   Copyright (C) 2014, 2015 GNUnet e.V.
-
-   TALER is free software; you can redistribute it and/or modify it under the
-   terms of the GNU General Public License as published by the Free Software
-   Foundation; either version 3, or (at your option) any later version.
-
-   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License along with
-   TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-   */
-/**
- * @file mintdb/perf_taler_mintdb_init.h
- * @brief Heler function for creating dummy inputs for the mint database
- * @author Nicolas Fournier
- */
-#ifndef __PERF_TALER_MINTDB_INIT_H___
-#define __PERF_TALER_MINTDB_INIT_H___
-
-#include "taler_mintdb_plugin.h"
-
-
-#define CURRENCY "EUR"
-
-/**
- * All information about a reserve
- */
-struct PERF_TALER_MINTDB_Reserve
-{
-  /**
-   * Information about a rserve available to the Mint
-   */
-  struct TALER_MINTDB_Reserve reserve;
-
-  /**
-   * Private key of a reserve
-   */
-  struct GNUNET_CRYPTO_EddsaPrivateKey private;
-};
-
-
-/**
- * All informations about a coin 
- */
-struct PERF_TALER_MINTDB_Coin
-{
-  /**
-   *  Blinded coin, known by the mint
-   */
-  struct TALER_MINTDB_CollectableBlindcoin blind;
-
-  /**
-   *  Public key of the coin and othes informations
-   */
-  struct TALER_CoinPublicInfo public_info;
-
-  /**
-   * Private key of the coin
-   */
-  struct GNUNET_CRYPTO_EddsaPrivateKey priv;
-};
-
-
-/**
- * Generate a dummy DenominationKeyInformation for testing purposes
- * @return a dummy denomination key
- */
-struct TALER_MINTDB_DenominationKeyIssueInformation *
-PERF_TALER_MINTDB_denomination_init (void);
-
-
-/**
- * Copies the given denomination
- * @param reserve the deposit copy
- * @return a copy of @a deposit; NULL if error
- */
-struct TALER_MINTDB_DenominationKeyIssueInformation *
-PERF_TALER_MINTDB_denomination_copy (
-  const struct TALER_MINTDB_DenominationKeyIssueInformation *dki);
-
-
-/**
- * Free memory of a DenominationKeyIssueInformation
- * @param dki pointer to the struct to free
- */
-int
-PERF_TALER_MINTDB_denomination_free (
-  struct TALER_MINTDB_DenominationKeyIssueInformation *dki);
-
-
-/**
- * Generate a dummy reserve for testing
- * @return a reserve with 1000 EUR in it
- */
-struct PERF_TALER_MINTDB_Reserve *
-PERF_TALER_MINTDB_reserve_init (void);
-
-
-/**
- * Copies the given reserve
- * @param reserve the reserve to copy
- * @return a copy of @a reserve; NULL if error
- */
-struct PERF_TALER_MINTDB_Reserve *
-PERF_TALER_MINTDB_reserve_copy (const struct PERF_TALER_MINTDB_Reserve *reserve);
-
-
-/**
- * Free memory of a reserve
- * @param reserve pointer to the structure to be freed
- */
-int
-PERF_TALER_MINTDB_reserve_free (struct PERF_TALER_MINTDB_Reserve *reserve);
-
-
-/**
- * Generate a dummy deposit for testing purposes
- * @param dki the denomination key used to sign the key
- */
-struct TALER_MINTDB_Deposit *
-PERF_TALER_MINTDB_deposit_init (
-  const struct PERF_TALER_MINTDB_Coin *coin);
-
-
-/**
- * Copies the given deposit
- * @param reserve the deposit copy
- * @return a copy of @a deposit; NULL if error
- */
-struct TALER_MINTDB_Deposit *
-PERF_TALER_MINTDB_deposit_copy (const struct TALER_MINTDB_Deposit *deposit);
-
-
-/**
- * Free memory of a deposit
- * @param deposit pointer to the structure to free
- */
-int
-PERF_TALER_MINTDB_deposit_free (struct TALER_MINTDB_Deposit *deposit);
-
-
-/**
- * Generate a coin for testing purpuses
- * @param dki denomination key used to sign the coin
- * @param reserve reserve providing the money for the coin
- * @return a randomly generated CollectableBlindcoin
- */
-struct PERF_TALER_MINTDB_Coin *
-PERF_TALER_MINTDB_coin_init (
-  const struct TALER_MINTDB_DenominationKeyIssueInformation *dki,
-  const struct PERF_TALER_MINTDB_Reserve *reserve);
-
-
-/**
- * Copies the given coin
- * @param coin the coin to copy
- * @return a copy of coin; NULL if error
- */
-struct PERF_TALER_MINTDB_Coin *
-PERF_TALER_MINTDB_coin_copy (
-  const struct PERF_TALER_MINTDB_Coin *coin);
-
-
-/**
- * Liberate memory of @a coin
- * @param coin pointer to the structure to free
- */
-int
-PERF_TALER_MINTDB_coin_free (
-  struct PERF_TALER_MINTDB_Coin *coin);
-
-
-/**
- * @return a randomly generated refresh session
- */
-struct TALER_MINTDB_RefreshSession *
-PERF_TALER_MINTDB_refresh_session_init (void);
-
-
-/**
- * @return #GNUNET_OK if the copy was successful, #GNUNET_SYSERR if it wasn't
- */
-int
-PERF_TALER_MINTDB_refresh_session_copy (struct TALER_MINTDB_RefreshSession *session, 
-                                        struct TALER_MINTDB_RefreshSession *copy);
-
-
-/**
- * Frees memory of a refresh_session
- */
-int
-PERF_TALER_MINTDB_refresh_session_free (
-  struct TALER_MINTDB_RefreshSession *refresh_session);
-
-
-/**
- * Create a melt operation
- *
- * @param session the refresh session 
- * @param dki the denomination the melted coin uses
- * @return a pointer to a #TALER_MINTDB_RefreshMelt 
- */
-struct TALER_MINTDB_RefreshMelt *
-PERF_TALER_MINTDB_refresh_melt_init (struct GNUNET_HashCode *session,
-                                     struct PERF_TALER_MINTDB_Coin *coin);
-
-
-/**
- * Copies the internals of a #TALER_MINTDB_RefreshMelt
- * 
- * @param melt the refresh melt to copy
- * @return an copy of @ melt
- */
-struct TALER_MINTDB_RefreshMelt *
-PERF_TALER_MINTDB_refresh_melt_copy (const struct TALER_MINTDB_RefreshMelt *melt);
-
-
-/**
- * Free the internal memory of a #TALER_MINTDB_RefreshMelt
- *
- * @param melt the #TALER_MINTDB_RefreshMelt to free
- * @return #GNUNET_OK if the operation was successful, #GNUNET_SYSERROR
- */
-int
-PERF_TALER_MINTDB_refresh_melt_free (struct TALER_MINTDB_RefreshMelt *melt);
-
-
-/**
- * Create a #TALER_MINTDB_RefreshCommitCoin
- */
-struct TALER_MINTDB_RefreshCommitCoin *
-PERF_TALER_MINTDB_refresh_commit_coin_init (void);
-
-
-/**
- * Copies a #TALER_MINTDB_RefreshCommitCoin
- *
- * @param commit_coin the commit to copy
- * @return a copy of @a commit_coin
- */
-struct TALER_MINTDB_RefreshCommitCoin *
-PERF_TALER_MINTDB_refresh_commit_coin_copy (struct TALER_MINTDB_RefreshCommitCoin *commit_coin);
-
-
-/**
- * Free a #TALER_MINTDB_RefreshCommitCoin
- *
- * @param commit_coin the coin to free
- */
-void
-PERF_TALER_MINTDB_refresh_commit_coin_free (struct TALER_MINTDB_RefreshCommitCoin *commit_coin);
-
-#endif
diff --git a/src/mintdb/perf_taler_mintdb_interpreter.c b/src/mintdb/perf_taler_mintdb_interpreter.c
deleted file mode 100644
index 293d5f35f..000000000
--- a/src/mintdb/perf_taler_mintdb_interpreter.c
+++ /dev/null
@@ -1,1998 +0,0 @@
-/*
-   This file is part of TALER
-   Copyright (C) 2014, 2015 GNUnet e.V.
-
-   TALER is free software; you can redistribute it and/or modify it under the
-   terms of the GNU General Public License as published by the Free Software
-   Foundation; either version 3, or (at your option) any later version.
-
-   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License along with
-   TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-   */
-/**
- * @file mintdb/perf_taler_mintdb_interpreter.c
- * @brief Interpreter library for mint database performance analysis
- * @author Nicolas Fournier
- */
-#include "platform.h"
-#include "perf_taler_mintdb_interpreter.h"
-#include "perf_taler_mintdb_init.h"
-#include "gauger.h"
-
-
-/**
- * Represents the state of the interpreter
- */
-struct PERF_TALER_MINTDB_interpreter_state
-{
-  /**
-   * State of the commands
-   */
-  struct PERF_TALER_MINTDB_Cmd *cmd;
-
-  /**
-   * Database plugin
-   */
-  struct TALER_MINTDB_Plugin *plugin;
-
-  /**
-   * Current database session
-   */
-  struct TALER_MINTDB_Session *session;
-
-  /**
-   * The current index of the interpreter
-   */
-  unsigned int i;
-};
-
-
-/**
- * Free the memory of @a data
- */
-static void
-data_free (struct PERF_TALER_MINTDB_Data *data)
-{
-  switch (data->type)
-  {
-    case PERF_TALER_MINTDB_TIME:
-      if (NULL == data->data.time)
-        break;
-      GNUNET_free (data->data.time);
-      data->data.time = NULL;
-      break;
-
-    case PERF_TALER_MINTDB_DEPOSIT:
-      if (NULL == data->data.deposit)
-        break;
-      PERF_TALER_MINTDB_deposit_free (data->data.deposit);
-      data->data.deposit = NULL;
-      break;
-
-    case PERF_TALER_MINTDB_COIN:
-      if (NULL == data->data.coin)
-        break;
-      PERF_TALER_MINTDB_coin_free (data->data.coin);
-      data->data.coin = NULL;
-      break;
-
-    case PERF_TALER_MINTDB_RESERVE:
-      if (NULL == data->data.reserve)
-        break;
-      PERF_TALER_MINTDB_reserve_free (data->data.reserve);
-      data->data.reserve = NULL;
-      break;
-
-    case PERF_TALER_MINTDB_DENOMINATION_INFO:
-      if (NULL == data->data.dki)
-        break;
-      PERF_TALER_MINTDB_denomination_free (data->data.dki);
-      data->data.dki = NULL;
-      break;
-
-    case PERF_TALER_MINTDB_REFRESH_HASH:
-      if (NULL == data->data.session_hash)
-        break;
-      GNUNET_free (data->data.session_hash);
-      data->data.session_hash = NULL;
-      break;
-
-    case PERF_TALER_MINTDB_REFRESH_MELT:
-      if (NULL == data->data.refresh_melt)
-        break;
-      PERF_TALER_MINTDB_refresh_melt_free (data->data.refresh_melt);
-      data->data.refresh_melt = NULL;
-      break;
-
-    case PERF_TALER_MINTDB_NONE:
-      break;
-  }
-}
-
-
-/**
- * Copies @a data into @a copy
- *
- * @param data the data to be copied
- * @param[out] copy the copy made
- */
-static void
-data_copy (const struct PERF_TALER_MINTDB_Data *data,
-           struct PERF_TALER_MINTDB_Data *copy)
-{
-  copy->type = data->type;
-  switch (data->type)
-  {
-    case PERF_TALER_MINTDB_TIME:
-      copy->data.time = GNUNET_new (struct GNUNET_TIME_Absolute);
-      *copy->data.time = *data->data.time;
-      return;
-
-    case PERF_TALER_MINTDB_DEPOSIT:
-      copy->data.deposit
-        = PERF_TALER_MINTDB_deposit_copy (data->data.deposit);
-      return;
-
-    case PERF_TALER_MINTDB_COIN:
-      copy->data.coin
-        = PERF_TALER_MINTDB_coin_copy (data->data.coin);
-      return;
-
-    case PERF_TALER_MINTDB_RESERVE:
-      copy->data.reserve
-        = PERF_TALER_MINTDB_reserve_copy (data->data.reserve);
-      return;
-
-    case PERF_TALER_MINTDB_DENOMINATION_INFO:
-      copy->data.dki
-        = PERF_TALER_MINTDB_denomination_copy (data->data.dki);
-      return;
-
-    case PERF_TALER_MINTDB_REFRESH_HASH:
-      copy-> data.session_hash = GNUNET_new (struct GNUNET_HashCode);
-      *copy->data.session_hash
-        = *data->data.session_hash;
-      break;
-
-    case PERF_TALER_MINTDB_REFRESH_MELT:
-      copy->data.refresh_melt
-        = PERF_TALER_MINTDB_refresh_melt_copy (data->data.refresh_melt);
-      break;
-
-    case PERF_TALER_MINTDB_NONE:
-      break;
-  }
-}
-
-
-/**
- * Finds the first command in cmd with the name search
- *
- * @return the index of the first command with name search
- * #GNUNET_SYSERR if none found
- */
-static int
-cmd_find (const struct PERF_TALER_MINTDB_Cmd *cmd,
-          const char *search)
-{
-  unsigned int i;
-
-  for (i=0; PERF_TALER_MINTDB_CMD_END != cmd[i].command; i++)
-    if (0 == strcmp (cmd[i].label, search))
-      return i;
-  return GNUNET_SYSERR;
-}
-
-
-/**
- * Initialization of a command array
- * and check for the type of the label
- *
- * @param cmd the comand array initialized
- * @return #GNUNET_OK if the initialization was sucessful
- * #GNUNET_SYSERR if there was a probleb. See the log for details
- */
-static int
-cmd_init (struct PERF_TALER_MINTDB_Cmd cmd[])
-{
-  unsigned int i;
-
-  for (i=0; PERF_TALER_MINTDB_CMD_END != cmd[i].command; i++)
-  {
-    switch (cmd[i].command)
-    {
-      case PERF_TALER_MINTDB_CMD_END_LOOP:
-        {
-          int ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.end_loop.label_loop);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.end_loop.label_loop);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_CMD_LOOP != cmd[ret].command)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.end_loop.label_loop);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.end_loop.index_loop = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_SAVE_ARRAY:
-        {
-          int ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.save_array.label_save);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.save_array.label_save);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_NONE == cmd[ret].exposed.type)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.save_array.label_save);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.save_array.index_save = ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.save_array.label_loop);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.save_array.label_loop);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_CMD_LOOP != cmd[ret].command)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.save_array.label_loop);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.save_array.index_loop = ret;
-
-          GNUNET_assert (NULL == cmd[i].details.save_array.data_saved);
-          cmd[i].details.save_array.data_saved =
-            GNUNET_new_array (cmd[i].details.save_array.nb_saved,
-                              struct PERF_TALER_MINTDB_Data);
-          cmd[i].details.save_array.type_saved =
-            cmd[cmd[i].details.save_array.index_save].exposed.type;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_LOAD_ARRAY:
-        {
-          int ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.load_array.label_save);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.load_array.label_save);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_CMD_SAVE_ARRAY != cmd[ret].command)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.load_array.label_save);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.load_array.index_save = ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.load_array.label_loop);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.load_array.label_loop);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_CMD_LOOP != cmd[ret].command)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.load_array.label_loop);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.load_array.index_loop = ret;
-
-          cmd[i].details.load_array.permutation =
-            GNUNET_CRYPTO_random_permute (
-              GNUNET_CRYPTO_QUALITY_WEAK,
-              cmd[cmd[i].details.load_array.index_save].details.save_array.nb_saved);
-          GNUNET_assert (NULL != cmd[i].details.load_array.permutation);
-
-          cmd[i].exposed.type = cmd[cmd[i].details.load_array.index_save].details.save_array.type_saved;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_LOAD_RANDOM:
-        {
-          int ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.load_random.label_save);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.load_random.label_save);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_CMD_SAVE_ARRAY != cmd[ret].command)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.load_random.label_save);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.load_random.index_save = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GAUGER:
-        {
-          int ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.gauger.label_start);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.gauger.label_start);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_TIME != cmd[ret].exposed.type)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.gauger.label_start);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.gauger.index_start = ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.gauger.label_stop);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.gauger.label_stop);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_TIME != cmd[ret].exposed.type)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.gauger.label_stop);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.gauger.index_stop = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_DENOMINATION:
-        {
-          int ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.insert_denomination.label_denom);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.insert_denomination.label_denom);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_DENOMINATION_INFO != cmd[ret].exposed.type)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.insert_denomination.label_denom);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.insert_denomination.index_denom = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_DENOMINATION:
-        {
-          int ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.get_denomination.label_denom);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.get_denomination.label_denom);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_DENOMINATION_INFO != cmd[ret].exposed.type)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.get_denomination.label_denom);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.get_denomination.index_denom = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_RESERVE:
-        {
-          int ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.insert_reserve.label_reserve);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.insert_reserve.label_reserve);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_RESERVE != cmd[ret].exposed.type)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.insert_reserve.label_reserve);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.insert_reserve.index_reserve = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_RESERVE:
-        {
-          int ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.get_reserve.label_reserve);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.get_reserve.label_reserve);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_RESERVE != cmd[ret].exposed.type)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.get_reserve.label_reserve);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.get_reserve.index_reserve = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_RESERVE_HISTORY:
-        {
-          int ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.get_reserve_history.label_reserve);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.get_reserve_history.label_reserve);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_RESERVE != cmd[ret].exposed.type)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.get_reserve_history.label_reserve);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.get_reserve_history.index_reserve = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_CREATE_WITHDRAW:
-        {
-          int ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.create_withdraw.label_dki);
-          {
-            if (GNUNET_SYSERR == ret)
-            {
-              GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                          "%d:Undefined reference to %s\n",
-                          i,
-                          cmd[i].details.create_withdraw.label_dki);
-              return GNUNET_SYSERR;
-            }
-            if (PERF_TALER_MINTDB_DENOMINATION_INFO != cmd[ret].exposed.type)
-            {
-              GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                          "%d:Wrong type reference to %s\n",
-                          i,
-                          cmd[i].details.create_withdraw.label_dki);
-              return GNUNET_SYSERR;
-            }
-          }
-          cmd[i].details.create_withdraw.index_dki = ret;
-          ret = cmd_find (cmd,
-                          cmd[i].details.create_withdraw.label_reserve);
-          {
-            if (GNUNET_SYSERR == ret)
-            {
-              GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                          "%d:Undefined reference to %s\n",
-                          i,
-                          cmd[i].details.create_withdraw.label_reserve);
-              return GNUNET_SYSERR;
-            }
-            if (PERF_TALER_MINTDB_RESERVE != cmd[ret].exposed.type)
-            {
-              GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                          "%d:Wrong type reference to %s\n",
-                          i,
-                          cmd[i].details.create_withdraw.label_reserve);
-              return GNUNET_SYSERR;
-            }
-          }
-          cmd[i].details.create_withdraw.index_reserve = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_WITHDRAW:
-        {
-          int ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.insert_withdraw.label_coin);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.insert_withdraw.label_coin);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_COIN != cmd[ret].exposed.type)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.insert_withdraw.label_coin);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.insert_withdraw.index_coin = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_WITHDRAW:
-        {
-          int ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.get_withdraw.label_coin);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.get_withdraw.label_coin);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_COIN != cmd[ret].exposed.type)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.get_withdraw.label_coin);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.get_withdraw.index_coin = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_COIN_TRANSACTION:
-        {
-          int ret;
-          ret = cmd_find (cmd,
-                          cmd[i].details.get_coin_transaction.label_coin);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.get_coin_transaction.label_coin);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_COIN != cmd[ret].exposed.type)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.get_coin_transaction.label_coin);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.get_coin_transaction.index_coin = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_CREATE_DEPOSIT:
-        {
-          int ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.create_deposit.label_coin);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.create_deposit.label_coin);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_COIN != cmd[ret].exposed.type)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.create_deposit.label_coin);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.create_deposit.index_coin = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_DEPOSIT:
-        {
-          int ret;
-
-          ret = cmd_find( cmd,
-                          cmd[i].details.insert_deposit.label_deposit);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.insert_deposit.label_deposit);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_DEPOSIT != cmd[ret].exposed.type)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.insert_deposit.label_deposit);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.insert_deposit.index_deposit = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_DEPOSIT:
-        {
-          int ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.get_deposit.label_deposit);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.get_deposit.label_deposit);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_DEPOSIT != cmd[ret].exposed.type)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.get_deposit.label_deposit);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.get_deposit.index_deposit = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_REFRESH_SESSION:
-        {
-          int ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.get_refresh_session.label_hash);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.get_refresh_session.label_hash);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_REFRESH_HASH != cmd[ret].exposed.type)
-          {   
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.get_refresh_session.label_hash);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.get_refresh_session.index_hash = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_REFRESH_MELT:
-        {
-          int ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.insert_refresh_melt.label_hash);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.insert_refresh_melt.label_hash);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_REFRESH_HASH != cmd[ret].exposed.type)
-          {   
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.insert_refresh_melt.label_hash);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.insert_refresh_melt.index_hash = ret;
-          ret = cmd_find (cmd,
-                          cmd[i].details.insert_refresh_melt.label_coin);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.insert_refresh_melt.label_coin);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_COIN != cmd[ret].exposed.type)
-          {   
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.insert_refresh_melt.label_coin);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.insert_refresh_melt.index_coin = ret;        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_REFRESH_MELT:
-        {
-          int ret;
-          ret = cmd_find (cmd,
-                          cmd[i].details.get_refresh_melt.label_hash);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.get_refresh_melt.label_hash);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_REFRESH_HASH != cmd[ret].exposed.type)
-          {   
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.get_refresh_melt.label_hash);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.get_refresh_melt.index_hash = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_REFRESH_ORDER:
-        {
-          int ret;
-          ret = cmd_find (cmd,
-                          cmd[i].details.insert_refresh_order.label_hash);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.insert_refresh_order.label_hash);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_REFRESH_HASH != cmd[ret].exposed.type)
-          {   
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.insert_refresh_order.label_hash);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.insert_refresh_order.index_hash = ret;
-
-          ret = cmd_find (cmd,
-                          cmd[i].details.insert_refresh_order.label_denom);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.insert_refresh_order.label_denom);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_DENOMINATION_INFO != cmd[ret].exposed.type)
-          {   
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.insert_refresh_order.label_denom);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.insert_refresh_order.index_denom = ret;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_REFRESH_ORDER:
-        {
-          int ret;
-          ret = cmd_find (cmd,
-                          cmd[i].details.get_refresh_order.label_hash);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.get_refresh_order.label_hash);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_REFRESH_HASH != cmd[ret].exposed.type)
-          {   
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.get_refresh_order.label_hash);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.get_refresh_order.index_hash = ret; 
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_REFRESH_COMMIT_COIN:
-       {
-          int ret;
-          ret = cmd_find (cmd,
-                          cmd[i].details.insert_refresh_commit_coin.label_hash);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.insert_refresh_commit_coin.label_hash);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_REFRESH_HASH != cmd[ret].exposed.type)
-          {   
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.insert_refresh_commit_coin.label_hash);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.insert_refresh_commit_coin.index_hash = ret; 
-        } 
-       break;
-
-      case PERF_TALER_MINTDB_CMD_GET_REFRESH_COMMIT_COIN:
-       {
-          int ret;
-          ret = cmd_find (cmd,
-                          cmd[i].details.get_refresh_commit_coin.label_hash);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.get_refresh_commit_coin.label_hash);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_REFRESH_HASH != cmd[ret].exposed.type)
-          {   
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.get_refresh_commit_coin.label_hash);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.get_refresh_commit_coin.index_hash = ret; 
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_REFRESH_COMMIT_LINK:
-       {
-          int ret;
-          ret = cmd_find (cmd,
-                          cmd[i].details.insert_refresh_commit_link.label_hash);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.insert_refresh_commit_link.label_hash);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_REFRESH_HASH != cmd[ret].exposed.type)
-          {   
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.insert_refresh_commit_link.label_hash);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.insert_refresh_commit_link.index_hash = ret; 
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_REFRESH_COMMIT_LINK:
-       {
-          int ret;
-          ret = cmd_find (cmd,
-                          cmd[i].details.get_refresh_commit_link.label_hash);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.get_refresh_commit_link.label_hash);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_REFRESH_HASH != cmd[ret].exposed.type)
-          {   
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.get_refresh_commit_link.label_hash);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.get_refresh_commit_link.index_hash = ret; 
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_MELT_COMMITMENT:
-       {
-          int ret;
-          ret = cmd_find (cmd,
-                          cmd[i].details.get_melt_commitment.label_hash);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.get_melt_commitment.label_hash);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_REFRESH_HASH != cmd[ret].exposed.type)
-          {   
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.get_melt_commitment.label_hash);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.get_melt_commitment.index_hash = ret; 
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_REFRESH_OUT:
-       {
-          int ret;
-          ret = cmd_find (cmd,
-                          cmd[i].details.insert_refresh_out.label_hash);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.insert_refresh_out.label_hash);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_REFRESH_HASH != cmd[ret].exposed.type)
-          {   
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.insert_refresh_out.label_hash);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.insert_refresh_out.index_hash = ret; 
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_LINK_DATA_LIST:
-       {
-          int ret;
-          ret = cmd_find (cmd,
-                          cmd[i].details.get_link_data_list.label_hash);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.get_link_data_list.label_hash);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_REFRESH_HASH != cmd[ret].exposed.type)
-          {   
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.get_link_data_list.label_hash);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.get_link_data_list.index_hash = ret; 
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_TRANSFER:
-       {
-          int ret;
-          ret = cmd_find (cmd,
-                          cmd[i].details.get_transfer.label_hash);
-          if (GNUNET_SYSERR == ret)
-          {
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Undefined reference to %s\n",
-                        i,
-                        cmd[i].details.get_transfer.label_hash);
-            return GNUNET_SYSERR;
-          }
-          if (PERF_TALER_MINTDB_REFRESH_HASH != cmd[ret].exposed.type)
-          {   
-            GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                        "%d:Wrong type reference to %s\n",
-                        i,
-                        cmd[i].details.get_transfer.label_hash);
-            return GNUNET_SYSERR;
-          }
-          cmd[i].details.get_transfer.index_hash = ret; 
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_END:
-      case PERF_TALER_MINTDB_CMD_DEBUG:
-      case PERF_TALER_MINTDB_CMD_LOOP:
-      case PERF_TALER_MINTDB_CMD_NEW_SESSION:
-      case PERF_TALER_MINTDB_CMD_START_TRANSACTION:
-      case PERF_TALER_MINTDB_CMD_COMMIT_TRANSACTION:
-      case PERF_TALER_MINTDB_CMD_ABORT_TRANSACTION:
-      case PERF_TALER_MINTDB_CMD_GET_TIME:
-      case PERF_TALER_MINTDB_CMD_CREATE_DENOMINATION:
-      case PERF_TALER_MINTDB_CMD_CREATE_RESERVE:
-      case PERF_TALER_MINTDB_CMD_CREATE_REFRESH_SESSION:
-        break;
-    }
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Free the memory of the command chain
- */
-static int
-cmd_clean (struct PERF_TALER_MINTDB_Cmd cmd[])
-{
-  unsigned int i;
-
-  for (i=0; PERF_TALER_MINTDB_CMD_END != cmd[i].command; i++)
-  {
-    switch (cmd[i].command)
-    {
-      case PERF_TALER_MINTDB_CMD_SAVE_ARRAY:
-        {
-          unsigned int j;
-
-          for (j = 0; j < cmd[i].details.save_array.nb_saved; j++)
-          {
-            data_free (&cmd[i].details.save_array.data_saved[j]);
-          }
-          GNUNET_free (cmd[i].details.save_array.data_saved);
-          cmd[i].details.save_array.data_saved = NULL;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_LOAD_ARRAY:
-        GNUNET_free (cmd[i].details.load_array.permutation);
-        cmd[i].details.load_array.permutation = NULL;
-        break;
-
-      default:
-        break;
-    }
-    data_free (&cmd[i].exposed);
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Handles the command #PERF_TALER_MINTDB_CMD_END_LOOP for the interpreter
- * Cleans the memory at the end of the loop
- */
-static void
-interpret_end_loop (struct PERF_TALER_MINTDB_interpreter_state *state)
-{
-  unsigned int i;
-  int jump;
-
-  jump = state->cmd[state->i].details.end_loop.index_loop;
-  // Cleaning up the memory in the loop
-  for (i = jump; i < state->i; i++)
-    data_free (&state->cmd[i].exposed);
-
-  state->cmd[jump].details.loop.curr_iteration++;
-  /* If the loop is not finished */
-  if (state->cmd[jump].details.loop.max_iterations >
-      state->cmd[jump].details.loop.curr_iteration)
-  {
-    /* jump back to the start */
-    state->i = jump;
-  }
-  else
-  {
-    /* Reset the loop counter and continue running */
-    state->cmd[jump].details.loop.curr_iteration = 0;
-  }
-}
-
-
-/**
- * Part of the interpreter specific to
- * #PERF_TALER_MINTDB_CMD_SAVE_ARRAY
- * Saves the data exposed by another command into
- * an array in the command specific struct.
- */
-static void
-interpret_save_array (struct PERF_TALER_MINTDB_interpreter_state *state)
-{
-  struct PERF_TALER_MINTDB_Cmd *cmd = &state->cmd[state->i];
-  struct PERF_TALER_MINTDB_Cmd *save_ref;
-  struct PERF_TALER_MINTDB_Cmd *loop_ref;
-  int loop_index;
-  int save_index;
-  unsigned int selection_chance;
-
-  loop_index = cmd->details.save_array.index_loop;
-  save_index = cmd->details.save_array.index_save;
-  loop_ref = &state->cmd[loop_index];
-  save_ref = &state->cmd[save_index];
-  /* Array initialization on first loop iteration
-     Alows for nested loops */
-  if (0 == cmd->details.loop.curr_iteration)
-  {
-    cmd->details.save_array.index = 0;
-  }
-  /* The probability distribution of the saved items will be a little biased
-     against the few last items but it should not be a big problem. */
-  selection_chance = loop_ref->details.loop.max_iterations /
-    cmd->details.save_array.nb_saved;
-  /*
-   * If the remaining space is equal to the remaining number of
-   * iterations, the item is automaticly saved.
-   *
-   * Else it is saved only if the random numbre generated is 0
-   */
-  if ( (0 < (cmd->details.save_array.nb_saved -
-             cmd->details.save_array.index) ) &&
-       ( ((loop_ref->details.loop.max_iterations -
-           loop_ref->details.loop.curr_iteration) ==
-          (cmd->details.save_array.nb_saved -
-           cmd->details.save_array.index)) ||
-         (0 == GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
-                                         selection_chance)) ) )
-  {
-    struct PERF_TALER_MINTDB_Data *save_location;
-    struct PERF_TALER_MINTDB_Data *item_saved;
-
-    save_location = &cmd->details.save_array.data_saved[cmd->details.save_array.index];
-    item_saved = &save_ref->exposed;
-    data_copy (item_saved, save_location);
-    cmd->details.save_array.index++;
-  }
-}
-
-
-/**
- * Part of the interpreter specific to
- * #PERF_TALER_MINTDB_CMD_LOAD_ARRAY
- * Gets data from a #PERF_TALER_MINTDB_CMD_SAVE_ARRAY and exposes a copy
- */
-static void
-interpret_load_array (struct PERF_TALER_MINTDB_interpreter_state *state)
-{
-  struct PERF_TALER_MINTDB_Cmd *cmd = &state->cmd[state->i];
-  unsigned int loop_iter;
-  int loop_index;
-  int save_index;
-  struct PERF_TALER_MINTDB_Data *loaded_data;
-
-  loop_index = cmd->details.load_array.index_loop;
-  save_index = cmd->details.load_array.index_save;
-  loop_iter = state->cmd[loop_index].details.loop.curr_iteration;
-  {
-    unsigned int i;
-    unsigned int quotient;
-
-    /* In case the iteration number is higher than the amount saved,
-     * the number is run several times in the permutation array */
-    quotient = loop_iter / state->cmd[save_index].details.save_array.nb_saved;
-    loop_iter = loop_iter % state->cmd[save_index].details.save_array.nb_saved;
-    for (i=0; i<=quotient; i++)
-      loop_iter = cmd->details.load_array.permutation[loop_iter];
-  }
-  /* Extracting the data from the loop_indexth indice in save_index
-   * array.
-   */
-  loaded_data = &state->cmd[save_index].details.save_array.data_saved[loop_iter];
-  data_copy (loaded_data,
-             &cmd->exposed);
-}
-
-
-/**
- * Part of the interpreter specific to
- * #PERF_TALER_MINTDB_CMD_LOAD_RANDOM
- * Get a random element from a #PERF_TALER_MINTDB_CMD_SAVE_ARRAY and exposes it
- */
-static void
-interprete_load_random (struct PERF_TALER_MINTDB_interpreter_state *state)
-{
-  struct PERF_TALER_MINTDB_Cmd *cmd = &state->cmd[state->i];
-  unsigned int index;
-  int save_index;
-
-  save_index = cmd->details.load_random.index_save;
-  index = GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK,
-                                    state->cmd[save_index].details.save_array.nb_saved);
-  data_copy (&state->cmd[save_index].details.save_array.data_saved[index],
-             &cmd->exposed);
-}
-
-
-/**
- * Iterate over the commands, acting accordingly at each step
- *
- * @param state the current state of the interpreter
- */
-static int
-interpret (struct PERF_TALER_MINTDB_interpreter_state *state)
-{
-  for (state->i=0; PERF_TALER_MINTDB_CMD_END != state->cmd[state->i].command; state->i++)
-  {
-    switch (state->cmd[state->i].command)
-    {
-      case PERF_TALER_MINTDB_CMD_END:
-        return GNUNET_YES;
-
-      case PERF_TALER_MINTDB_CMD_DEBUG:
-        GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                    "%s\n",
-                    state->cmd[state->i].label);
-        break;
-
-      case PERF_TALER_MINTDB_CMD_LOOP:
-        break;
-
-      case PERF_TALER_MINTDB_CMD_END_LOOP:
-        interpret_end_loop (state);
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_TIME:
-        state->cmd[state->i].exposed.data.time =
-          GNUNET_new (struct GNUNET_TIME_Absolute);
-        *state->cmd[state->i].exposed.data.time =
-          GNUNET_TIME_absolute_get ();
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GAUGER:
-        {
-          unsigned int start_index;
-          unsigned int stop_index;
-          float ips;
-          struct GNUNET_TIME_Absolute start;
-          struct GNUNET_TIME_Absolute stop;
-          struct GNUNET_TIME_Relative elapsed;
-
-          start_index = state->cmd[state->i].details.gauger.index_start;
-          stop_index = state->cmd[state->i].details.gauger.index_stop;
-          start = *state->cmd[start_index].exposed.data.time;
-          stop = *state->cmd[stop_index].exposed.data.time;
-          elapsed = GNUNET_TIME_absolute_get_difference (start,
-                                                         stop);
-          ips = (1.0 * state->cmd[state->i].details.gauger.divide) / (elapsed.rel_value_us/1000000.0);
-          GAUGER (state->cmd[state->i].details.gauger.category,
-                  state->cmd[state->i].details.gauger.description,
-                  ips,
-                  state->cmd[state->i].details.gauger.unit);
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_NEW_SESSION:
-        state->session = state->plugin->get_session (state->plugin->cls, GNUNET_YES);
-        break;
-
-      case PERF_TALER_MINTDB_CMD_START_TRANSACTION:
-        state->plugin->start (state->plugin->cls, state->session);
-        break;
-
-      case PERF_TALER_MINTDB_CMD_COMMIT_TRANSACTION:
-        state->plugin->commit (state->plugin->cls, state->session);
-        break;
-
-      case PERF_TALER_MINTDB_CMD_ABORT_TRANSACTION:
-        state->plugin->rollback (state->plugin->cls,
-                                 state->session);
-        break;
-
-      case PERF_TALER_MINTDB_CMD_SAVE_ARRAY:
-        interpret_save_array (state);
-        break;
-
-      case PERF_TALER_MINTDB_CMD_LOAD_ARRAY:
-        interpret_load_array (state);
-        break;
-
-      case PERF_TALER_MINTDB_CMD_LOAD_RANDOM:
-        interprete_load_random (state);
-        break;
-
-      case PERF_TALER_MINTDB_CMD_CREATE_DEPOSIT:
-        {
-          int coin_index;
-          struct TALER_MINTDB_Deposit *deposit;
-
-          coin_index = state->cmd[state->i].details.create_deposit.index_coin;
-          deposit = PERF_TALER_MINTDB_deposit_init (state->cmd[coin_index].exposed.data.coin);
-          GNUNET_assert (NULL != deposit);
-          state->cmd[state->i].exposed.data.deposit = deposit;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_DEPOSIT:
-        {
-          int deposit_index;
-          int ret;
-          struct TALER_MINTDB_Deposit *deposit;
-
-          deposit_index = state->cmd[state->i].details.insert_deposit.index_deposit;
-          deposit = state->cmd[deposit_index].exposed.data.deposit;
-          ret = state->plugin->insert_deposit (state->plugin->cls,
-                                                        state->session,
-                                                        deposit);
-          GNUNET_assert (GNUNET_SYSERR != ret);
-          state->cmd[state->i].exposed.data.deposit = deposit;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_DEPOSIT:
-        {
-          unsigned int source_index;
-          int ret;
-          struct PERF_TALER_MINTDB_Data *data;
-
-          source_index = state->cmd[state->i].details.get_deposit.index_deposit;
-          data = &state->cmd[source_index].exposed;
-          ret = state->plugin->have_deposit (state->plugin->cls,
-                                             state->session,
-                                             data->data.deposit);
-          GNUNET_assert (GNUNET_SYSERR != ret);
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_CREATE_RESERVE:
-        {
-          struct PERF_TALER_MINTDB_Reserve *reserve;
-
-          reserve = PERF_TALER_MINTDB_reserve_init ();
-          state->cmd[state->i].exposed.data.reserve = reserve;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_RESERVE:
-        {
-          unsigned int reserve_index;
-          int ret;
-          struct PERF_TALER_MINTDB_Reserve *reserve;
-          json_t *details = NULL;
-
-          reserve_index = state->cmd[state->i].details.insert_reserve.index_reserve;
-          reserve = state->cmd[reserve_index].exposed.data.reserve;
-          details = json_pack ("{s:i}","justification",
-                               GNUNET_CRYPTO_random_u32 (
-                                 GNUNET_CRYPTO_QUALITY_WEAK,
-                                 UINT32_MAX));
-          GNUNET_assert (NULL != details);
-          ret = state->plugin->reserves_in_insert (state->plugin->cls,
-                                                   state->session,
-                                                   &reserve->reserve.pub,
-                                                   &reserve->reserve.balance,
-                                                   GNUNET_TIME_absolute_get (),
-                                                   details);
-          GNUNET_assert (GNUNET_SYSERR != ret);
-          json_decref (details);
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_RESERVE:
-        {
-          unsigned int reserve_index;
-          int ret;
-          struct PERF_TALER_MINTDB_Data *data;
-
-
-          reserve_index = state->cmd[state->i].details.get_reserve.index_reserve;
-          data = &state->cmd[reserve_index].exposed;
-          ret = state->plugin->reserve_get (state->plugin->cls,
-                                            state->session,
-                                            &data->data.reserve->reserve);
-          GNUNET_assert (GNUNET_OK == ret);
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_RESERVE_HISTORY:
-        {
-          unsigned int reserve_index;
-          struct TALER_MINTDB_ReserveHistory *history;
-          struct PERF_TALER_MINTDB_Data *data;
-
-          reserve_index = state->cmd[state->i].details.get_reserve_history.index_reserve;
-          data = &state->cmd[reserve_index].exposed;
-          history = state->plugin->get_reserve_history (state->plugin->cls,
-                                                        state->session,
-                                                        &data->data.reserve->reserve.pub);
-          GNUNET_assert (NULL != history);
-          state->plugin->free_reserve_history (state->plugin->cls,
-                                               history);
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_CREATE_DENOMINATION:
-        {
-          struct TALER_MINTDB_DenominationKeyIssueInformation *dki =
-            PERF_TALER_MINTDB_denomination_init ();
-          GNUNET_assert (NULL != dki);
-          state->cmd[state->i].exposed.data.dki = dki;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_DENOMINATION:
-        {
-          unsigned int denom_index;
-          int ret;
-          struct TALER_MINTDB_DenominationKeyIssueInformation *dki ;
-
-          denom_index = state->cmd[state->i].details.insert_denomination.index_denom;
-          dki = state->cmd[denom_index].exposed.data.dki;
-          ret = state->plugin->insert_denomination_info (state->plugin->cls,
-                                                         state->session,
-                                                         &dki->denom_pub,
-                                                         &dki->issue);
-          GNUNET_assert (GNUNET_SYSERR != ret);
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_DENOMINATION:
-        {
-          unsigned int denom_index;
-          int ret;
-          struct PERF_TALER_MINTDB_Data *data;
-
-          denom_index = state->cmd[state->i].details.get_denomination.index_denom; 
-          data = &state->cmd[denom_index].exposed;
-          ret = state->plugin->get_denomination_info (state->plugin->cls,
-                                                      state->session,
-                                                      &data->data.dki->denom_pub,
-                                                      &data->data.dki->issue);
-          GNUNET_assert (GNUNET_SYSERR != ret);
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_CREATE_WITHDRAW:
-        {
-          unsigned int dki_index;
-          unsigned int reserve_index;
-          struct PERF_TALER_MINTDB_Coin *coin ;
-
-          dki_index     = state->cmd[state->i].details.create_withdraw.index_dki;
-          reserve_index = state->cmd[state->i].details.create_withdraw.index_reserve;
-          coin = PERF_TALER_MINTDB_coin_init (state->cmd[dki_index].exposed.data.dki,
-                                              state->cmd[reserve_index].exposed.data.reserve);
-          GNUNET_assert (NULL != coin);
-          state->cmd[state->i].exposed.data.coin = coin;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_WITHDRAW:
-        {
-          unsigned int coin_index;
-          int ret;
-          struct PERF_TALER_MINTDB_Coin *coin ;
-
-          coin_index = state->cmd[state->i].details.insert_withdraw.index_coin;
-          coin = state->cmd[coin_index].exposed.data.coin;
-          ret = state->plugin->insert_withdraw_info (state->plugin->cls,
-                                                     state->session,
-                                                     &coin->blind);
-          GNUNET_assert (GNUNET_SYSERR != ret);
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_WITHDRAW:
-        {
-          unsigned int source_index;
-          int ret;
-          struct PERF_TALER_MINTDB_Data *data;
-
-          source_index = state->cmd[state->i].details.get_denomination.index_denom;
-          data = &state->cmd[source_index].exposed;
-          ret = state->plugin->get_withdraw_info (state->plugin->cls,
-                                                  state->session,
-                                                  &data->data.coin->blind.h_coin_envelope,
-                                                  &data->data.coin->blind);
-          GNUNET_assert (GNUNET_SYSERR != ret);
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_COIN_TRANSACTION:
-        {
-          unsigned int coin_index;
-          struct PERF_TALER_MINTDB_Coin *coin;
-          struct TALER_MINTDB_TransactionList *transactions;
-
-          coin_index = state->cmd[state->i].details.get_coin_transaction.index_coin;
-          coin = state->cmd[coin_index].exposed.data.coin;
-          transactions = state->plugin->get_coin_transactions (state->plugin->cls,
-                                                               state->session,
-                                                               &coin->public_info.coin_pub);
-          GNUNET_assert (transactions != NULL);
-          state->plugin->free_coin_transaction_list (state->plugin->cls,
-                                                     transactions);
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_CREATE_REFRESH_SESSION:
-        {
-          struct GNUNET_HashCode *hash;
-          struct TALER_MINTDB_RefreshSession *refresh_session;
-
-          hash = GNUNET_new (struct GNUNET_HashCode);
-          refresh_session = PERF_TALER_MINTDB_refresh_session_init ();
-          GNUNET_CRYPTO_hash_create_random (GNUNET_CRYPTO_QUALITY_WEAK,
-                                            hash);
-          state->plugin->create_refresh_session (state->session,
-                                                 state->session,
-                                                 hash,
-                                                 refresh_session);
-          state->cmd[state->i].exposed.data.session_hash = hash;
-          PERF_TALER_MINTDB_refresh_session_free (refresh_session);
-          GNUNET_free (refresh_session);
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_REFRESH_SESSION:
-        {
-          unsigned int hash_index;
-          struct GNUNET_HashCode *hash;
-          struct TALER_MINTDB_RefreshSession refresh;
-
-          hash_index = state->cmd[state->i].details.get_refresh_session.index_hash;
-          hash = state->cmd[hash_index].exposed.data.session_hash;
-          state->plugin->get_refresh_session (state->session,
-                                              state->session,
-                                              hash,
-                                              &refresh);
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_REFRESH_MELT:
-        {
-          unsigned int hash_index;
-          unsigned int coin_index;
-          struct GNUNET_HashCode *hash;
-          struct TALER_MINTDB_RefreshMelt *melt;
-          struct PERF_TALER_MINTDB_Coin *coin;
-
-          hash_index = state->cmd[state->i].details.insert_refresh_melt.index_hash;
-          coin_index = state->cmd[state->i].details.insert_refresh_melt.index_coin;
-          hash = state->cmd[hash_index].exposed.data.session_hash;
-          coin = state->cmd[coin_index].exposed.data.coin;
-          melt = PERF_TALER_MINTDB_refresh_melt_init (hash,
-                                                      coin);
-          state->plugin->insert_refresh_melt (state->plugin->cls,
-                                                    state->session,
-                                                    1,
-                                                    melt);
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_REFRESH_MELT:
-        {
-          int ret;
-          unsigned int hash_index;
-          struct GNUNET_HashCode *hash;
-          struct TALER_MINTDB_RefreshMelt melt;
-
-          hash_index = cmd_find (state->cmd,
-                                 state->cmd[state->i].details.get_refresh_melt.label_hash);
-          hash = state->cmd[hash_index].exposed.data.session_hash;
-          ret = state->plugin->get_refresh_melt (state->plugin->cls,
-                                                 state->session,
-                                                 hash,
-                                                 1,
-                                                 &melt);
-          GNUNET_assert (GNUNET_SYSERR != ret);
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_REFRESH_ORDER:
-        {
-          unsigned int hash_index;
-          unsigned int denom_index;
-          struct GNUNET_HashCode *session_hash;
-          struct TALER_MINTDB_DenominationKeyIssueInformation *denom;
-
-          hash_index = state->cmd[state->i].details.insert_refresh_order.index_hash;
-          denom_index = state->cmd[state->i].details.insert_refresh_order.index_denom;
-          session_hash = state->cmd[hash_index].exposed.data.session_hash;
-          denom = state->cmd[denom_index].exposed.data.dki;
-          state->plugin->insert_refresh_order (state->plugin->cls,
-                                               state->session,
-                                               session_hash,
-                                               1,
-                                               &denom->denom_pub);
-
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_REFRESH_ORDER:
-        {
-          int hash_index;
-          struct GNUNET_HashCode *hash;
-          struct TALER_DenominationPublicKey denom_pub;
-
-          hash_index = state->cmd[state->i].details.get_refresh_order.index_hash;
-          hash = state->cmd[hash_index].exposed.data.session_hash;
-          state->plugin->get_refresh_order (state->plugin->cls,
-                                            state->session,
-                                            hash,
-                                            1,
-                                            &denom_pub);
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_REFRESH_COMMIT_COIN:
-        {
-          int ret;
-          unsigned int hash_index;
-          struct TALER_MINTDB_RefreshCommitCoin *refresh_commit;
-
-          hash_index = state->cmd[state->i].details.insert_refresh_commit_coin.index_hash;
-          refresh_commit = PERF_TALER_MINTDB_refresh_commit_coin_init ();
-          ret = state->plugin->insert_refresh_commit_coins (state->plugin->cls,
-                                                            state->session,
-                                                            state->cmd[hash_index].exposed.data.session_hash,
-                                                            1,
-                                                            1,
-                                                            refresh_commit);
-          GNUNET_assert (GNUNET_OK == ret);                                                  
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_REFRESH_COMMIT_COIN:
-        {
-          unsigned int hash_index;
-          struct TALER_MINTDB_RefreshCommitCoin refresh_commit;
-            
-          hash_index = state->cmd[state->i].details.insert_refresh_commit_coin.index_hash;
-          state->plugin->get_refresh_commit_coins (state->plugin->cls,
-                                                   state->session,
-                                                   state->cmd[hash_index].exposed.data.session_hash,
-                                                   1,
-                                                   1,
-                                                   &refresh_commit);
-
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_REFRESH_COMMIT_LINK:
-        {
-//          unsigned int hash_index;
-//
-//          hash_index = state->cmd[state->i].details.insert_refresh_commit_link.index_hash;
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_REFRESH_COMMIT_LINK:
-        {
-          int ret;
-          unsigned int hash_index;
-          struct TALER_MINTDB_RefreshCommitCoin commit_coin;
-
-          hash_index = state->cmd[state->i].details.get_refresh_commit_link.index_hash;
-          ret = state->plugin->get_refresh_commit_coins(state->plugin->cls,
-                                                        state->session,
-                                                        state->cmd[hash_index].exposed.data.session_hash,
-                                                        1,
-                                                        1,
-                                                        &commit_coin);
-          GNUNET_assert (GNUNET_SYSERR != ret);
-        }
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_MELT_COMMITMENT:
-        break;
-
-      case PERF_TALER_MINTDB_CMD_INSERT_REFRESH_OUT:
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_LINK_DATA_LIST:
-        break;
-
-      case PERF_TALER_MINTDB_CMD_GET_TRANSFER:
-        break;
-
-    }
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Runs the commands given in @a cmd, working with
- * the database referenced by @a db_plugin
- *
- * @param db_plugin the connection to the database
- * @param cmd the commands to run
- */
-int
-PERF_TALER_MINTDB_interpret (struct TALER_MINTDB_Plugin *db_plugin,
-                             struct PERF_TALER_MINTDB_Cmd cmd[])
-{
-  int ret;
-  struct PERF_TALER_MINTDB_interpreter_state state =
-  {.i = 0, .cmd = cmd, .plugin = db_plugin};
-
-  ret = cmd_init (cmd);
-  if (GNUNET_SYSERR == ret)
-    return ret;
-  state.session = db_plugin->get_session (db_plugin->cls,
-                                          GNUNET_YES);
-  GNUNET_assert (NULL != state.session);
-  ret = interpret (&state);
-  cmd_clean (cmd);
-  return ret;
-}
-
-
-/**
- * Initialize the database and run the benchmark
- *
- * @param benchmark_name the name of the benchmark, displayed in the logs
- * @param configuration_file path to the taler configuration file to use
- * @param init the commands to use for the database initialisation,
- * if #NULL the standard initialization is used
- * @param benchmark the commands for the benchmark
- * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
- */
-int
-PERF_TALER_MINTDB_run_benchmark (const char *benchmark_name,
-                                 const char *configuration_file,
-                                 struct PERF_TALER_MINTDB_Cmd *init,
-                                 struct PERF_TALER_MINTDB_Cmd *benchmark)
-{
-  struct TALER_MINTDB_Plugin *plugin;
-  struct GNUNET_CONFIGURATION_Handle *config;
-  int ret = 0;
-  struct PERF_TALER_MINTDB_Cmd init_def[] =
-  {
-    // Denomination used to create coins
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("00 - Start of interpreter"),
-
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("01 - denomination loop",
-                                     PERF_TALER_MINTDB_NB_DENOMINATION_INIT),
-    PERF_TALER_MINTDB_INIT_CMD_START_TRANSACTION (""),
-    PERF_TALER_MINTDB_INIT_CMD_CREATE_DENOMINATION ("01 - denomination"),
-    PERF_TALER_MINTDB_INIT_CMD_INSERT_DENOMINATION ("01 - insert",
-                                                    "01 - denomination"),
-    PERF_TALER_MINTDB_INIT_CMD_COMMIT_TRANSACTION (""),
-    PERF_TALER_MINTDB_INIT_CMD_SAVE_ARRAY ("01 - save denomination",
-                                           "01 - denomination loop",
-                                           "01 - denomination",
-                                           PERF_TALER_MINTDB_NB_DENOMINATION_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("",
-                                         "01 - denomination loop"),
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("01 - init denomination complete"),
-    // End of initialization
-    // Reserve initialization
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("02 - init reserve loop",
-                                     PERF_TALER_MINTDB_NB_RESERVE_INIT),
-    PERF_TALER_MINTDB_INIT_CMD_CREATE_RESERVE ("02 - reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_INSERT_RESERVE ("02 - insert",
-                                               "02 - reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_SAVE_ARRAY ("02 - save reserve",
-                                           "02 - init reserve loop",
-                                           "02 - reserve",
-                                           PERF_TALER_MINTDB_NB_RESERVE_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("",
-                                         "02 - init reserve loop"),
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("02 - reserve init complete"),
-    // End reserve init
-    // Withdrawal initialization
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("03 - init withdraw loop",
-                                     PERF_TALER_MINTDB_NB_WITHDRAW_INIT),
-    PERF_TALER_MINTDB_INIT_CMD_START_TRANSACTION (""),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("03 - denomination load",
-                                           "03 - init withdraw loop",
-                                           "01 - save denomination"),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("03 - reserve load",
-                                           "03 - init withdraw loop",
-                                           "02 - save reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_CREATE_WITHDRAW ("03 - withdraw",
-                                                "03 - denomination load",
-                                                "03 - reserve load"),
-    PERF_TALER_MINTDB_INIT_CMD_INSERT_WITHDRAW ("03 - insert",
-                                                "03 - withdraw"),
-    PERF_TALER_MINTDB_INIT_CMD_COMMIT_TRANSACTION (""),
-    PERF_TALER_MINTDB_INIT_CMD_SAVE_ARRAY ("03 - save coin",
-                                           "03 - init withdraw loop",
-                                           "03 - withdraw",
-                                           PERF_TALER_MINTDB_NB_WITHDRAW_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("",
-                                         "03 - init withdraw loop"),
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("03 - withdraw init complete"),
-    //End of withdrawal initialization
-    //Deposit initialization
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("04 - deposit init loop",
-                                     PERF_TALER_MINTDB_NB_DEPOSIT_INIT),
-    PERF_TALER_MINTDB_INIT_CMD_START_TRANSACTION ("04 - start transaction"),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("04 - denomination load",
-                                           "04 - deposit init loop",
-                                           "03 - save coin"),
-    PERF_TALER_MINTDB_INIT_CMD_INSERT_DEPOSIT ("04 - deposit",
-                                               "04 - denomination load"),
-    PERF_TALER_MINTDB_INIT_CMD_COMMIT_TRANSACTION ("04 - commit transaction"),
-    PERF_TALER_MINTDB_INIT_CMD_SAVE_ARRAY ("04 - deposit array",
-                                           "04 - deposit init loop",
-                                           "04 - deposit",
-                                           PERF_TALER_MINTDB_NB_DEPOSIT_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("04 - deposit init loop end",
-                                         "04 - deposit init loop"),
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("04 - deposit init complete"),
-    // End of deposit initialization
-    PERF_TALER_MINTDB_INIT_CMD_END ("end")
-  };
-
-  GNUNET_log_setup (benchmark_name,
-                    "INFO",
-                    NULL);
-  config = GNUNET_CONFIGURATION_create ();
-
-  ret = GNUNET_CONFIGURATION_load (config,
-                                   configuration_file);
-  if (GNUNET_OK != ret)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Error parsing configuration file\n");
-    return GNUNET_SYSERR;
-  }
-  plugin = TALER_MINTDB_plugin_load (config);
-  if (NULL == plugin)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Error connectiong to the database\n");
-    return ret;
-  }
-  ret = plugin->create_tables (plugin->cls,
-                               GNUNET_YES);
-  if (GNUNET_OK != ret)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Error while creating the database architecture\n");
-    return ret;
-  }
-  /*
-   * Running the initialization
-   */
-  if (NULL == init)
-  {
-    init = init_def;
-  }
-  ret = PERF_TALER_MINTDB_interpret (plugin,
-                                     init);
-  if (GNUNET_OK != ret)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Error during database initialization\n");
-    return ret;
-  }
-  /*
-   * Running the benchmark
-   */
-  ret = PERF_TALER_MINTDB_interpret (plugin,
-                                     benchmark);
-  if (GNUNET_OK != ret)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Error while runing the benchmark\n");
-    return ret;
-  }
-  /* Drop tables */
-  {
-    struct TALER_MINTDB_Session *session;
-
-    session = plugin->get_session (plugin->cls,
-                                   GNUNET_YES);
-    ret = plugin->drop_temporary (plugin->cls,
-                                  session);
-    if (GNUNET_OK != ret)
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                  "Error cleaning the database\n");
-      return ret;
-    }
-  }
-  TALER_MINTDB_plugin_unload (plugin);
-  GNUNET_CONFIGURATION_destroy (config);
-  return ret;
-}
diff --git a/src/mintdb/perf_taler_mintdb_interpreter.h b/src/mintdb/perf_taler_mintdb_interpreter.h
deleted file mode 100644
index 3510e3dd4..000000000
--- a/src/mintdb/perf_taler_mintdb_interpreter.h
+++ /dev/null
@@ -1,1319 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mintdb/perf_taler_mintdb_interpreter.h
- * @brief Library for performance analysis of the Taler database
- * @author Nicolas Fournier
- *
- * This library contains functions and macro alowing Taler performance analysis
- * to be written with ease.
- * To do so, create a #PERF_TALER_MINTDB_Cmd array and fill it with the commands
- * to execute in chronological order. Some command have an exposed variable wich
- * can be reused in other commands.
- * Macros are available to make the use much easier so feel free to use them
- * to initialize your own command array.
- */
-
-#ifndef __PERF_TALER_MINTDB_INTERPRETER_H__
-#define __PERF_TALER_MINTDB_INTERPRETER_H__
-
-#include <sys/time.h>
-#include "taler_mintdb_plugin.h"
-
-
-#define PERF_TALER_MINTDB_NB_DENOMINATION_INIT  10
-#define PERF_TALER_MINTDB_NB_DENOMINATION_SAVE  10
-
-#define PERF_TALER_MINTDB_NB_RESERVE_INIT   100
-#define PERF_TALER_MINTDB_NB_RESERVE_SAVE   10
-
-#define PERF_TALER_MINTDB_NB_DEPOSIT_INIT   100
-#define PERF_TALER_MINTDB_NB_DEPOSIT_SAVE   10
-
-#define PERF_TALER_MINTDB_NB_WITHDRAW_INIT  100
-#define PERF_TALER_MINTDB_NB_WITHDRAW_SAVE  10
-
-
-/**
- * Marks the end of the command chain
- *
- * @param _label The label of the command
- */
-#define PERF_TALER_MINTDB_INIT_CMD_END(_label) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_END, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE \
-}
-
-
-/**
- * Prints @ _label to stdout
- *
- * @param _label The label of the command,
- *  will be logged each time the command runs
- */
-#define PERF_TALER_MINTDB_INIT_CMD_DEBUG(_label) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_DEBUG, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE \
-}
-
-/**
- * The begining of a loop
- *
- * @param _label the label of the loop
- * @param _iter the number of iterations of the loop
- */
-#define PERF_TALER_MINTDB_INIT_CMD_LOOP(_label, _iter) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_LOOP , \
-  .label = _label , \
-  .exposed.type = PERF_TALER_MINTDB_NONE , \
-  .details.loop = { \
-    .max_iterations = _iter , \
-    .curr_iteration = 0 } \
-}
-
-/**
- * Marks the end of the loop @_label_loop
- *
- * @param _label the label of the command
- * @param _label_loop the label of the loop closed by this command
- */
-#define PERF_TALER_MINTDB_INIT_CMD_END_LOOP(_label, _label_loop) \
-{\
-  .command = PERF_TALER_MINTDB_CMD_END_LOOP , \
-  .label = _label , \
-  .exposed.type = PERF_TALER_MINTDB_NONE , \
-  .details.end_loop.label_loop = _label_loop \
-}
-
-/**
- * Saves the time of execution to use for logging with Gauger
- *
- * @param _label the label of the command
- */
-#define PERF_TALER_MINTDB_INIT_CMD_GET_TIME(_label) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_GET_TIME, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_TIME \
-}
-
-/**
- * Commits the duration between @a _label_start and @a _label_stop
- * to Gauger with @a _description explaining what was measured.
- *
- * @param _label the label of this command
- * @param _label_start label of the start of the measurment
- * @param _label_stop label of the end of the measurment
- * @param _description description of the measure displayed in Gauger
- * @param _unit the unit of the data measured, typicly something/sec
- * @param _divide number of measurments in the interval
- */
-#define PERF_TALER_MINTDB_INIT_CMD_GAUGER(_label, _label_start, _label_stop, _category, _description, _unit, _divide) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_GAUGER, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE, \
-  .details.gauger = { \
-    .label_start = _label_start, \
-    .label_stop = _label_stop, \
-    .category = _category, \
-    .description = _description, \
-    .unit = _unit, \
-    .divide = _divide, \
-  } \
-}
-
-/**
- * Initiate a database transaction
- *
- * @param _label the label of the command
- */
-#define PERF_TALER_MINTDB_INIT_CMD_START_TRANSACTION(_label) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_START_TRANSACTION, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE, \
-}
-
-/**
- * Commits a database transaction
- *
- * @param _label the label of the command
- */
-#define PERF_TALER_MINTDB_INIT_CMD_COMMIT_TRANSACTION(_label) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_COMMIT_TRANSACTION, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE, \
-}
-
-/**
- * Abort the current transaction
- *
- * @param _label the label of the command
- */
-#define PERF_TALER_MINTDB_INIT_CMD_ABORT_TRANSACTION(_label) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_ABORT_TRANSACTION, \
-  .label = _label,
-
-/**
- * Saves randomly selected items from @a _label_save
- * Saved items can latter be access using #PERF_TALER_MINTDB_CMD_LOAD_ARRAY
- *
- * @param _label the label of the command, used by other commands to reference it
- * @param _label_loop the label of the loop the array iterates over
- * @param _label_save the label of the command which outout is saved by this command
- * @param _nb_saved the total number of items to be saved
- */
-#define PERF_TALER_MINTDB_INIT_CMD_SAVE_ARRAY(_label, _label_loop, _label_save, _nb_saved) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_SAVE_ARRAY, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE, \
-  .details.save_array = { \
-    .label_loop = _label_loop, \
-    .label_save = _label_save, \
-    .nb_saved = _nb_saved, \
-  } \
-}
-
-/**
- * Loads data from a #PERF_TALER_MINTDB_CMD_SAVE_ARRAY to allow other
- * commands to access it
- *
- * @param _label the label of this command, referenced by commands to access it's outpout
- * @param _label_loop the label of the loop to iterate over
- * @param _label_save the label of the #PERF_TALER_MINTDB_CMD_SAVE_ARRAY providing data
- */
-#define PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY(_label, _label_loop, _label_save) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_LOAD_ARRAY, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE, \
-  .details.load_array = { \
-    .label_loop = _label_loop, \
-    .label_save = _label_save \
-  } \
-}
-
-/**
- * Create a denomination key to use
- * Exposes a #PERF_TALER_MINTDB_DENOMINATION_INFO to be used by other commands
- * @exposed #PERF_TALER_MINTDB_DENOMINATION_INFO
- *
- * @param _label the label of this command
- */
-#define PERF_TALER_MINTDB_INIT_CMD_CREATE_DENOMINATION(_label) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_CREATE_DENOMINATION, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_DENOMINATION_INFO, \
-}
-
-/**
- * Inserts informations about a denomination key in the database
- *
- * @param _label the label of this command
- * @param _label_denom the label of the denomination to insert
- */
-#define PERF_TALER_MINTDB_INIT_CMD_INSERT_DENOMINATION(_label, _label_denom) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_INSERT_DENOMINATION, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE, \
-  .details.insert_denomination.label_denom = _label_denom, \
-}
-
-/**
- * Polls the database about informations regarding a specific denomination key
- *
- * @param _label the label of this command
- * @param _label_denom the label of the command providing information about the denomination key
- */
-#define PERF_TALER_MINTDB_INIT_CMD_GET_DENOMINATION(_label, _label_denom) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_GET_DENOMINATION, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE, \
-  .details.get_denomination.label_denom = _label_denom \
-}
-
-/**
- * Create a reserve to be used later
- * Exposes a #PERF_TALER_MINTDB_RESERVE
- *
- * @param _label the label of the command
- */
-#define PERF_TALER_MINTDB_INIT_CMD_CREATE_RESERVE(_label) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_CREATE_RESERVE, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_RESERVE \
-}
-
-/**
- * Insert a new reserve in the database containing 1000 Euros
- *
- * @param _label the name of this command
- * @param _label_reserve the label of the reserve to insert
- */
-#define PERF_TALER_MINTDB_INIT_CMD_INSERT_RESERVE(_label, _label_reserve) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_INSERT_RESERVE, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE, \
-  .details.insert_reserve.label_reserve = _label_reserve \
-}
-
-/**
- * Polls the database for a secific reserve's details
- *
- * @param _label the label of this command
- * @param _label_reserve the reserve to poll
- */
-#define PERF_TALER_MINTDB_INIT_CMD_GET_RESERVE(_label, _label_reserve) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_GET_RESERVE, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE, \
-  .details.get_reserve.label_reserve = _label_reserve \
-}
-
-/**
- * Polls the database for the history of a reserve
- *
- * @param _label the label of the command
- * @param _label_reserve the reserve to examine
- */
-#define PERF_TALER_MINTDB_INIT_CMD_GET_RESERVE_HISTORY(_label, _label_reserve) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_GET_RESERVE_HISTORY, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE, \
-  .details.get_reserve_history.label_reserve = _label_reserve \
-}
-
-/**
- * Creates a coin to be used later
- *
- * @param _label the label of this command
- * @param _label_dki denomination key used to sign the coin
- * @param _label_reserve reserve used to emmit the coin
- */
-#define PERF_TALER_MINTDB_INIT_CMD_CREATE_WITHDRAW(_label, _label_dki, _label_reserve) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_CREATE_WITHDRAW, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_COIN, \
-  .details.create_withdraw = {\
-    .label_dki = _label_dki, \
-    .label_reserve = _label_reserve, \
-  } \
-}
-
-/**
- * Inserts informations about a withdrawal in the database
- *
- * @exposes #PERF_TALER_MINTDB_COIN
- *
- * @param _label the label of this command
- * @param _label_coin the coin to insert
- */
-#define PERF_TALER_MINTDB_INIT_CMD_INSERT_WITHDRAW(_label, _label_coin) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_INSERT_WITHDRAW, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE, \
-  .details.insert_withdraw.label_coin = _label_coin\
-}
-
-
-/**
- * Polls the database about informations regarding a specific withdrawal
- *
- * @param _label the label of this command
- * @param _label_coin the coin to check
- */
-#define PERF_TALER_MINTDB_INIT_CMD_GET_WITHDRAW(_label, _label_coin) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_GET_WITHDRAW, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE, \
-  .details.get_withdraw.label_coin = _label_coin, \
-}
-
-
-/**
- * The /reserve/withdraw api call
- *
- * Exposes #PERF_TALER_MINTDB_COIN
- *
- * @param _label the label of this command
- * @param _label_dki the denomination of the created coin
- * @param _label_reserve the reserve used to provide currency
- */
-#define PERF_TALER_MINTDB_INIT_CMD_WITHDRAW_SIGN(_label, _label_dki, _label_reserve) \
-  PERF_TALER_MINTDB_INIT_CMD_CREATE_WITHDRAW (_label "withdraw", \
-                                              _label_dki, \
-                                              _label_reserve), \
-  PERF_TALER_MINTDB_INIT_CMD_GET_DENOMINATION(_label "withdraw info", \
-                                              _label_dki), \
-  PERF_TALER_MINTDB_INIT_CMD_GET_RESERVE_HISTORY(_label "reserve_history", \
-                                                 _label_reserve), \
-  PERF_TALER_MINTDB_INIT_CMD_INSERT_WITHDRAW(_label "insert withdraw", \
-                                             _label "withdraw")
-
-/**
- * Create a deposit for use later
- * @exposes #PERF_TALER_MINTDB_DEPOSIT
- *
- * @param _label the label of this command
- * @param _label_coin the coin used to pay
- */
-#define PERF_TALER_MINTDB_INIT_CMD_CREATE_DEPOSIT(_label, _label_coin) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_CREATE_DEPOSIT, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_DEPOSIT, \
-  .details.create_deposit.label_coin = _label_coin, \
-}
-
-/**
- * Insert a deposit into the database
- *
- * @param _label the label of this command
- * @param _label_deposit the deposit inseerted
- */
-#define PERF_TALER_MINTDB_INIT_CMD_INSERT_DEPOSIT(_label, _label_deposit) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_INSERT_DEPOSIT,\
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE, \
-  .details.insert_deposit.label_deposit = _label_deposit, \
-}
-
-/**
- * Check if a deposit is in the database
- *
- * @param _label the label of this command
- * @param _label_deposit the deposit to use
- */
-#define PERF_TALER_MINTDB_INIT_CMD_GET_DEPOSIT(_label, _label_deposit) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_GET_DEPOSIT, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE, \
-  .details.get_deposit.label_deposit = _label_deposit \
-}
-
-/**
- * Access the transaction history of a coin
- *
- * @param _label the label of the command
- * @param _label_coin the coin which history is checked
- */
-#define PERF_TALER_MINTDB_INIT_CMD_GET_COIN_TRANSACTION(_label, _label_coin) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_GET_COIN_TRANSACTION, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE, \
-  .details.get_coin_transaction.label_coin = _label_coin \
-}
-
-/**
- * The /deposit api call
- *
- * @param _label the label of the command
- * @param _label_coin the coin used for the deposit
- */
-#define PERF_TALER_MINTDB_INIT_CMD_DEPOSIT(_label, _label_coin) \
-  PERF_TALER_MINTDB_INIT_CMD_GET_COIN_TRANSACTION (_label "coin history", \
-                                                   _label_coin), \
-  PERF_TALER_MINTDB_INIT_CMD_CREATE_DEPOSIT (_label "deposit", \
-                                             _label_coin), \
-  PERF_TALER_MINTDB_INIT_CMD_INSERT_DEPOSIT (_label "insert", \
-                                             _label "deposit")
-/**
- * Insert informations about a refresh session
- * melts one coin into another
- *
- * @param _label the label of the command
- */
-#define PERF_TALER_MINTDB_INIT_CMD_CREATE_REFRESH_SESSION(_label) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_CREATE_REFRESH_SESSION, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_REFRESH_HASH \
-}
-
-/**
- * Get informations about a refresh session
- * 
- * @param _label the label of the command
- * @param _label_hash the label of the hash to search
- */
-#define PERF_TALER_MINTDB_INIT_CMD_GET_REFRESH_SESSION(_label, \
-                                                       _label_hash) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_GET_REFRESH_SESSION, \
-  .label = _label, \
-  .exposed.type = PERF_TALER_MINTDB_NONE \
-}
-
-/**
- * Insert a melt operation in the database
- *
- * @param _label the label of the command
- * @param _label_hash the label of the hash of the session
- * @param _label_coin the label of the coin to melt
- */
-#define PERF_TALER_MINTDB_INIT_CMD_INSERT_REFRESH_MELT(_label, \
-                                                       _label_hash, \
-                                                       _label_coin) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_INSERT_REFRESH_MELT, \
-  .label = _label, \
-  .details.insert_refresh_melt.label_hash = _label_hash, \
-  .details.insert_refresh_melt.label_coin = _label_coin, \
-  .exposed.type = PERF_TALER_MINTDB_NONE \
-}
-
-/**
- * Get informations about a melt operation
- *
- * @param _label the label of the command
- * @param _label_hash the label of the hash of the refresh session
- */
-#define PERF_TALER_MINTDB_INIT_CMD_GET_REFRESH_MELT(_label, \
-                                                    _label_hash) \
-{ \
-  .command = PERF_TALER_MINTDB_CMD_GET_REFRESH_MELT, \
-  .label = _label, \
-  .detail.get_refresh_melt.label_hash = _label_hash, \
-  .exposed.type = PERF_TALER_MINTDB_NONE \
-}
-
-/**
- * The type of data stored in #PERF_TALER_MINTDB_Memory
- */
-enum PERF_TALER_MINTDB_Type
-{
-  PERF_TALER_MINTDB_NONE,
-  PERF_TALER_MINTDB_TIME,
-  PERF_TALER_MINTDB_DENOMINATION_INFO,
-  PERF_TALER_MINTDB_RESERVE,
-  PERF_TALER_MINTDB_COIN,
-  PERF_TALER_MINTDB_DEPOSIT,
-  PERF_TALER_MINTDB_REFRESH_HASH,
-  PERF_TALER_MINTDB_REFRESH_MELT
-};
-
-
-/**
- * Structure used to handle several data type
- */
-struct PERF_TALER_MINTDB_Data
-{
-  enum PERF_TALER_MINTDB_Type type;
-
-  /**
-   * Storage for a variety of data type
-   * The data saved should match #type
-   */
-  union PERF_TALER_MINTDB_Memory
-  {
-    /** #PERF_TALER_MINTDB_TIME */
-    struct GNUNET_TIME_Absolute *time;
-    /** #PERF_TALER_MINTDB_DEPOSIT */
-    struct TALER_MINTDB_Deposit *deposit;
-    /** #PERF_TALER_MINTDB_COIN */
-    struct PERF_TALER_MINTDB_Coin *coin;
-    /** #PERF_TALER_MINTDB_RESERVE */
-    struct PERF_TALER_MINTDB_Reserve *reserve;
-    /** #PERF_TALER_MINTDB_DENOMINATION_INFO */
-    struct TALER_MINTDB_DenominationKeyIssueInformation *dki;
-    /** #PERF_TALER_MINTDB_REFRESH_HASH */
-    struct GNUNET_HashCode *session_hash;
-    /** #PERF_TALER_MINTDB_REFRESH_MELT */
-    struct TALER_MINTDB_RefreshMelt *refresh_melt;
-  } data;
-};
-
-
-/**
- * Name of the command
- */
-enum PERF_TALER_MINTDB_CMD_Name
-{
-  /**
-   * All comand chain must hace this as their last command
-   */
-  PERF_TALER_MINTDB_CMD_END,
-
-  /**
-   * Prints it's label
-   */
-  PERF_TALER_MINTDB_CMD_DEBUG,
-
-  /**
-   * Define the start of al command chain loop
-   */
-  PERF_TALER_MINTDB_CMD_LOOP,
-
-  /**
-   * Define the end of a command chain loop
-   */
-  PERF_TALER_MINTDB_CMD_END_LOOP,
-
-  /**
-   * Save the time at which the command was executed
-   */
-  PERF_TALER_MINTDB_CMD_GET_TIME,
-
-  /**
-   * Upload performance to Gauger
-   */
-  PERF_TALER_MINTDB_CMD_GAUGER,
-
-  /**
-   * Start a new session
-   */
-  PERF_TALER_MINTDB_CMD_NEW_SESSION,
-
-  /**
-   * Start a database transaction
-   */
-  PERF_TALER_MINTDB_CMD_START_TRANSACTION,
-
-  /**
-   * End a database transaction
-   */
-  PERF_TALER_MINTDB_CMD_COMMIT_TRANSACTION,
-
-  /**
-   * Abort a transaction started with #PERF_TALER_MINTDB_CMD_START_TRANSACTION
-   */
-  PERF_TALER_MINTDB_CMD_ABORT_TRANSACTION,
-
-  /**
-   * Saves random deposits from a loop
-   */
-  PERF_TALER_MINTDB_CMD_SAVE_ARRAY,
-
-  /**
-   * Load items saved earlier in a #PERF_TALER_MINTDB_CMD_SAVE_ARRAY
-   * The items are loaded in a random order, but all of them will be loaded
-   */
-  PERF_TALER_MINTDB_CMD_LOAD_ARRAY,
-
-  /**
-   * Loads a random item from a #PERF_TALER_MINTDB_CMD_SAVE_ARRAY
-   * A random item is loaded each time the command is run
-   */
-  PERF_TALER_MINTDB_CMD_LOAD_RANDOM,
-
-  /**
-   * Create a denomination to be used later
-   */
-  PERF_TALER_MINTDB_CMD_CREATE_DENOMINATION,
-
-  /**
-   * Insert informations about a denomination key in the database
-   */
-  PERF_TALER_MINTDB_CMD_INSERT_DENOMINATION,
-
-  /**
-   * Polls the database for informations about a specific denomination key
-   */
-  PERF_TALER_MINTDB_CMD_GET_DENOMINATION,
-
-  /**
-   * Create a reserve to be used later
-   */
-  PERF_TALER_MINTDB_CMD_CREATE_RESERVE,
-
-  /**
-   * Insert currency in a reserve / Create a reserve
-   */
-  PERF_TALER_MINTDB_CMD_INSERT_RESERVE,
-
-  /**
-   * Get Informations about a reserve
-   */
-  PERF_TALER_MINTDB_CMD_GET_RESERVE,
-
-  /**
-   * Get the history of a reserve
-   */
-  PERF_TALER_MINTDB_CMD_GET_RESERVE_HISTORY,
-
-  /**
-   * Create a withdrawal to be used later
-   */
-  PERF_TALER_MINTDB_CMD_CREATE_WITHDRAW,
-
-  /**
-   * Insert informations about a withdrawal in the database
-   */
-  PERF_TALER_MINTDB_CMD_INSERT_WITHDRAW,
-
-  /**
-   * Pulls informations about a withdrawal from the database
-   */
-  PERF_TALER_MINTDB_CMD_GET_WITHDRAW,
-
-  /**
-   * Get the list of all transactions the coin has been in
-   */
-  PERF_TALER_MINTDB_CMD_GET_COIN_TRANSACTION,
-
-  /**
-   * Create a deposit to be used later
-   */
-  PERF_TALER_MINTDB_CMD_CREATE_DEPOSIT,
-
-  /**
-   * Insert a deposit into the database
-   */
-  PERF_TALER_MINTDB_CMD_INSERT_DEPOSIT,
-
-  /**
-   * Check if a deposit is in the database
-   */
-  PERF_TALER_MINTDB_CMD_GET_DEPOSIT,
-
-  /**
-   * Create a refresh session
-   * The number of melted coins is 1,
-   * The number of minted coins is 1
-   */
-  PERF_TALER_MINTDB_CMD_CREATE_REFRESH_SESSION,
-
-  /**
-   * Get a refresh session informations
-   */
-  PERF_TALER_MINTDB_CMD_GET_REFRESH_SESSION,
-
-  /**
-   * Insert a refresh melt
-   */
-  PERF_TALER_MINTDB_CMD_INSERT_REFRESH_MELT,
-
-  /**
-   * Get informations about a refresh melt operation
-   */
-  PERF_TALER_MINTDB_CMD_GET_REFRESH_MELT,
-
-  /**
-   * Insert a melt refresh order
-   */
-  PERF_TALER_MINTDB_CMD_INSERT_REFRESH_ORDER,
-
-  /**
-   * Get informations about a refresh order
-   */
-  PERF_TALER_MINTDB_CMD_GET_REFRESH_ORDER,
-
-  /**
-   * Insert refresh commit coin
-   */
-  PERF_TALER_MINTDB_CMD_INSERT_REFRESH_COMMIT_COIN,
-
-  /**
-   * Get refresh commit coin
-   */
-  PERF_TALER_MINTDB_CMD_GET_REFRESH_COMMIT_COIN,
-
-  /**
-   * Insert refresh commit link
-   */
-  PERF_TALER_MINTDB_CMD_INSERT_REFRESH_COMMIT_LINK,
-
-  /**
-   * Get refresh commit link
-   */
-  PERF_TALER_MINTDB_CMD_GET_REFRESH_COMMIT_LINK,
-
-  /**
-   * Get information avout the melt commit
-   */
-  PERF_TALER_MINTDB_CMD_GET_MELT_COMMITMENT,
-
-  /**
-   * Insert a new coin into the database after a melt operation
-   */
-  PERF_TALER_MINTDB_CMD_INSERT_REFRESH_OUT,
-
-  /**
-   * Get the link data list of a coin
-   */
-  PERF_TALER_MINTDB_CMD_GET_LINK_DATA_LIST,
-
-  /**
-   * Get the shared secret and the transfere public key
-   */
-  PERF_TALER_MINTDB_CMD_GET_TRANSFER
-
-};
-
-
-/**
- * Contains extra data required for any command
- */
-union PERF_TALER_MINTDB_CMD_Details
-{
-  /**
-   * Extra data requiered for the #PERF_TALER_MINTDB_CMD_LOOP command
-   */
-  struct PERF_TALER_MINTDB_CMD_loopDetails
-  {
-    /**
-     * Maximum number of iteration in the loop
-     */
-    const unsigned int max_iterations;
-
-    /**
-     * The current iteration of the loop
-     */
-    unsigned int curr_iteration;
-  } loop;
-
-  /**
-   * Extra data requiered by the #PERF_TALER_MINTDB_CMD_END_LOOP command
-   */
-  struct PERF_TALER_MINTDB_CMD_endLoopDetails
-  {
-    /**
-     * Label of the loop closed by the command
-     */
-    const char *label_loop;
-    unsigned int index_loop;
-  } end_loop;
-
-  /**
-   * Details about the #PERF_TALER_MINTDB_CMD_GAUGER  command
-   */
-  struct PERF_TALER_MINTDB_CMD_gaugerDetails
-  {
-    /**
-     * Label of the starting timestamp
-     */
-    const char *label_start;
-    unsigned int index_start;
-
-    /**
-     * Label of the ending timestamp
-     */
-    const char *label_stop;
-    unsigned int index_stop;
-
-    /**
-     * The category of the measurment
-     */
-    const char *category;
-
-    /**
-     * Description of the metric, used in Gauger
-     */
-    const char *description;
-
-    /**
-     * The name of the metric beeing used
-     */
-    const char *unit;
-
-    /**
-     * Constant the result needs to be divided by
-     * to get the result per unit
-     */
-    float divide;
-  } gauger;
-
-  /**
-   * Contains extra data requiered by the #PERF_TALER_MINTDB_CMD_SAVE_ARRAY command
-   */
-  struct PERF_TALER_MINTDB_CMD_saveArrayDetails
-  {
-    /**
-     * Number of items to save
-     */
-    unsigned int nb_saved;
-
-    /**
-     * Number of items already saved
-     */
-    unsigned int index;
-
-    /**
-     * Label of the loop it is attached to
-     */
-    const char *label_loop;
-    unsigned int index_loop;
-
-    /**
-     * Label of the command exposing the item
-     */
-    const char *label_save;
-    unsigned int index_save;
-
-    /**
-     * Array of data saved
-     */
-    struct PERF_TALER_MINTDB_Data *data_saved;
-
-    /**
-     * Type of the data that will be stored in @a data_saved, for
-     * 'static' type checking.
-     */
-    enum PERF_TALER_MINTDB_Type type_saved;
-
-  } save_array;
-
-  /**
-   * Extra data required for the #PERF_TALER_MINTDB_CMD_LOAD_ARRAY command
-   */
-  struct PERF_TALER_MINTDB_CMD_loadArrayDetails
-  {
-    /**
-     * The loop in which the command is located
-     */
-    const char *label_loop;
-    unsigned int index_loop;
-
-    /**
-     * Label of the command where the items were saved
-     */
-    const char *label_save;
-    unsigned int index_save;
-
-    /**
-     * A permutation array used to randomize the order the items are loaded in
-     */
-    unsigned int *permutation;
-  } load_array;
-
-  /**
-   * Contains data for the #PERF_TALER_MINTDB_CMD_LOAD_RANDOM command
-   */
-  struct PERF_TALER_MINTDB_CMD_loadRandomDetails
-  {
-    /**
-     * The label of the #PERF_TALER_MINTDB_CMD_SAVE_ARRAY the items will be extracted from
-     */
-    const char *label_save;
-    unsigned int index_save;
-  } load_random;
-
-  /**
-   * Extra data requiered by the #PERF_TALER_MINTDB_CMD_INSERT_DENOMINATION command
-   */
-  struct PERF_TALER_MINTDB_CMD_insertDenominationDetails
-  {
-    /**
-     * The label of the source of the denomination to insert
-     */
-    const char *label_denom;
-    unsigned int index_denom;
-  } insert_denomination;  
-  
-  /**
-   * Extra data requiered by the #PERF_TALER_MINTDB_CMD_GET_DENOMINATION command
-   */
-  struct PERF_TALER_MINTDB_CMD_getDenominationDetails
-  {
-    /**
-     * The label of the source of the denomination to check
-     */
-    const char *label_denom;
-    unsigned int index_denom;
-  } get_denomination;
-
-  /**
-   * Extra data requiered for the #PERF_TALER_MINTDB_CMD_INSERT_RESERVE command
-   */
-  struct PERF_TALER_MINTDB_CMD_insertReserveDetails
-  {
-    /**
-     * The label of the source of the reserve to insert
-     */
-    const char *label_reserve;
-    unsigned int index_reserve;
-  } insert_reserve;
-
-  /**
-   * Extra data requiered for the #PERF_TALER_MINTDB_CMD_GET_RESERVE command
-   */
-  struct PERF_TALER_MINTDB_CMD_getReserveDetails
-  {
-    /**
-     * The label of the source of the reserve to check
-     */
-    const char *label_reserve;
-    unsigned int index_reserve;
-  } get_reserve;
-
-  /**
-   * Extra data requiered for the #PERF_TALER_MINTDB_CMD_GET_RESERVE_HISTORY command
-   */
-  struct PERF_TALER_MINTDB_CMD_getReserveHistoryDetails
-  {
-    /**
-     * The label of the source of the reserve to check
-     */
-    const char *label_reserve;
-    unsigned int index_reserve;
-  } get_reserve_history;
-
-  /**
-   * Extra data related to the #PERF_TALER_MINTDB_CMD_CREATE_WITHDRAW command
-   */
-  struct PERF_TALER_MINTDB_CMD_createWithdrawDetails
-  {
-    /**
-     * label of the denomination key used to sign the coin
-     */
-    const char *label_dki;
-    unsigned int index_dki;
-
-    /**
-     * label of the reserve the money to mint the coin comes from
-     */
-    const char *label_reserve;
-    unsigned int index_reserve;
-  } create_withdraw;
-
-  /**
-   * data requiered for the #PERF_TALER_MINTDB_CMD_INSERT_WITHDRAW
-   */
-  struct PERF_TALER_MINTDB_CMD_insertWithdrawDetails
-  {
-    /**
-     * label of the source for the coin information
-     */
-    const char *label_coin;
-    unsigned int index_coin;
-  } insert_withdraw;
-
-  /**
-   * data requiered for the #PERF_TALER_MINTDB_CMD_GET_WITHDRAW
-   */
-  struct PERF_TALER_MINTDB_CMD_getWithdraw
-  {
-    /**
-     * label of the source for the coin information
-     */
-    const char *label_coin;
-    unsigned int index_coin;
-  } get_withdraw;
-
-  /**
-   * Data requiered for the #PERF_TALER_MINTDB_CMD_GET_COIN_TRANSACTION command
-   */
-  struct PERF_TALER_MINTDB_CMD_getCoinTransactionDetails
-  {
-    /**
-     * The coin which history is checked
-     */
-    const char *label_coin;
-    unsigned int index_coin;
-  } get_coin_transaction;
-
-  /**
-   * Data used by the #PERF_TALER_MINTDB_CMD_CREATE_DEPOSIT command
-   */
-  struct PERF_TALER_MINTDB_CMD_createDepositDetails
-  {
-    /**
-     * Label of the source where the reserve used to create the coin is
-     */
-    const char *label_coin;
-    unsigned int index_coin;
-  } create_deposit;
-
-  /**
-   * Extra data requiered for the #PERF_TALER_MINTDB_CMD_INSERT_DEPOSIT command
-   */
-  struct PERF_TALER_MINTDB_CMD_insertDepositDetails
-  {
-    /**
-     * The label of the source of the deposit to check
-     */
-    const char *label_deposit;
-    unsigned int index_deposit;
-  } insert_deposit;
-
-  /**
-   * Extra data requiered for the #PERF_TALER_MINTDB_CMD_GET_DEPOSIT command
-   */
-  struct PERF_TALER_MINTDB_CMD_getDepositDetails
-  {
-    /**
-     * The label of the source of the deposit to check
-     */
-    const char *label_deposit;
-    unsigned int index_deposit;
-  } get_deposit;
-
- /**
-   * Data requiered for the #PERF_TALER_MINTDB_CMD_GET_REFRESH_SESSION command
-   */
-  struct PERF_TALER_MINTDB_CMD_getRefreshSessionDetails
-  {
-    /**
-     * label of the source of the hash of the session
-     */
-    const char *label_hash;
-    unsigned int index_hash;
-  } get_refresh_session;
-
-  /**
-   * Data requiered for the #PERF_TALER_MINTDB_CMD_INSERT_REFRESH_MELT command
-   */
-  struct PERF_TALER_MINTDB_CMD_insertRefreshMeltDetails
-  {
-    /**
-     * The label of the hash of the refresh session
-     */
-    const char *label_hash;
-    unsigned int index_hash;
-
-    /**
-     * The label of the coin to melt
-     */
-    const char *label_coin;
-    unsigned int index_coin;
-  } insert_refresh_melt;
-
-  /**
-   * Data requiered for the #PERF_TALER_MINTDB_CMD_GET_REFRESH_MELT command
-   */
-  struct PERF_TALER_MINTDB_CMD_getRefreshMeltDetails
-  {
-    /**
-     * The label of the hash of the session
-     */
-    const char *label_hash;
-    unsigned int index_hash;
-  } get_refresh_melt;
-
-  /**
-   * Data requiered for the #PERF_TALER_MINTDB_CMD_INSERT_REFRESH_ORDER command
-   */
-  struct PERF_TALER_MINTDB_CMD_insertRefreshOrderDetails
-  {
-   /**
-    * The refresh session hash
-    */
-   const char *label_hash;
-    unsigned int index_hash;
-
-   /**
-    * The new coin denomination
-    */
-   const char *label_denom;
-   unsigned int index_denom;
-  } insert_refresh_order;
-
-  /**
-   * Data requiered for the #PERF_TALER_MINTDB_CMD_GET_REFRESH_ORDER command
-   */
-  struct PERF_TALER_MINTDB_CMD_getRefreshOrderDetails
-  {
-    /**
-     * The session hash
-     */
-    const char *label_hash;
-    unsigned int index_hash;
-
-  } get_refresh_order;
-
-  /**
-   * Data requiered for the #PERF_TALER_MINTDB_CMD_INSERT_REFRESH_COMMIT_COIN command
-   */
-  struct PERF_TALER_MINTDB_CMD_insertRefreshCommitCoinDetails
-  {
-    /**
-     * The refresh session hash
-     */
-    const char *label_hash;
-    unsigned int index_hash;
-
-  } insert_refresh_commit_coin;
-
-  /**
-   * Data requiered for the #PERF_TALER_MINTDB_CMD_GET_REFRESH_COMMIT_COIN command
-   */
-  struct PERF_TALER_MINTDB_CMD_getRefreshCommitCoinDetails
-  {
-    /**
-     * The refresh session hash
-     */
-    const char *label_hash;
-    unsigned int index_hash;
-
-  } get_refresh_commit_coin;
-
-  /**
-   * Data requiered for the #PERF_TALER_MINTDB_CMD_INSERT_REFRESH_COMMIT_LINK command
-   */
-  struct PERF_TALER_MINTDB_CMD_insertRefreshCommitLinkDetails
-  {
-    /**
-     * The refresh session hash
-     */
-    const char *label_hash;
-    unsigned int index_hash;
-
-  } insert_refresh_commit_link;
-
-  /**
-   * Data requiered by the #PERF_TALER_MINTDB_CMD_GET_REFRESH_COMMIT_LINK command
-   */
-  struct PERF_TALER_MINTDB_CMD_getRefreshCommitLinkDetails
-  {
-    /**
-     * The refresh session hash
-     */
-    const char *label_hash;
-    unsigned int index_hash;
-  } get_refresh_commit_link;
-
-  /**
-   * Data requiered for the #PERF_TALER_MINTDB_CMD_GET_MELT_COMMITMENT command
-   */
-  struct PERF_TALER_MINTDB_CMD_getMeltCommitmentDaetails
-  {
-    /**
-     * The refresh session hash
-     */
-    const char *label_hash;
-    unsigned int index_hash;
-  } get_melt_commitment;
-
-  /**
-   * Data requiered by the #PERF_TALER_MINTDB_CMD_INSERT_REFRESH_OUT command
-   */
-  struct PERF_TALER_MINTDB_CMD_insertRefreshOutDetails
-  {
-    /**
-     * The refresh session hash
-     */
-    const char *label_hash;
-    unsigned int index_hash;
-  } insert_refresh_out;
-
-  /**
-   * Data requiered by the #PERF_TALER_MINTDB_CMD_GET_LINK_DATA_LIST command
-   */
-  struct PERF_TALER_MINTDB_CMD_getLinkDataListDetails
-  {
-    /**
-     * The refresh session hash
-     */
-    const char *label_hash;
-    unsigned int index_hash;
-  } get_link_data_list;
-
-  /**
-   * Data requiered by the #PERF_TALER_MINTDB_CMD_GET_TRANSFER command
-   */
-  struct PERF_TALER_MINTDB_CMD_getTransferDetails
-  {
-    /**
-     * The refresh session hash
-     */
-    const char *label_hash;
-    unsigned int index_hash;
-  } get_transfer;
-
-};
-
-
-/**
- * Command to be interpreted.
- */
-struct PERF_TALER_MINTDB_Cmd
-{
-  /**
-   *  Type of the command
-   */
-  enum PERF_TALER_MINTDB_CMD_Name command;
-
-  /**
-   * Label to refer to the command
-   */
-  const char *label;
-
-  /**
-   * Command specific data
-   */
-  union PERF_TALER_MINTDB_CMD_Details details;
-
-  /**
-   * Data easily accessible
-   */
-  struct PERF_TALER_MINTDB_Data exposed;
-};
-
-
-/**
- * Run a benchmark
- *
- * @param benchmark_name the name of the benchmark, displayed in the logs
- * @param configuration_file path to the taler configuration file to use
- * @param init the commands to use for the database initialisation,
- * if #NULL the standard initialization is used
- * @param benchmark the commands for the benchmark
- * @return GNUNET_OK upon success; GNUNET_SYSERR upon failure
- */
-int
-PERF_TALER_MINTDB_run_benchmark (const char *benchmark_name,
-                                 const char *configuration_file,
-                                 struct PERF_TALER_MINTDB_Cmd *init,
-                                 struct PERF_TALER_MINTDB_Cmd *benchmark);
-
-
-/**
- * Runs the command array @a cmd
- * using @a db_plugin to connect to the database
- *
- * @param db_plugin the connection to the database
- * @param cmd the commands to run
- */
-int
-PERF_TALER_MINTDB_interpret(
-  struct TALER_MINTDB_Plugin *db_plugin,
-  struct PERF_TALER_MINTDB_Cmd cmd[]);
-
-
-/**
- * Check if the given command array is syntaxicly correct
- * This will check if the label are corrects but will not check if
- * they are pointing to an apropriate command.
- *
- * @param cmd the command array to check
- * @return #GNUNET_OK is @a cmd is correct; #GNUNET_SYSERR if it is'nt
- */
-int
-PERF_TALER_MINTDB_check (const struct PERF_TALER_MINTDB_Cmd *cmd);
-
-#endif
diff --git a/src/mintdb/perf_taler_mintdb_values.h b/src/mintdb/perf_taler_mintdb_values.h
deleted file mode 100644
index 35f87f5b0..000000000
--- a/src/mintdb/perf_taler_mintdb_values.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
-   This file is part of TALER
-   Copyright (C) 2014, 2015 GNUnet e.V.
-
-   TALER is free software; you can redistribute it and/or modify it under the
-   terms of the GNU General Public License as published by the Free Software
-   Foundation; either version 3, or (at your option) any later version.
-
-   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License along with
-   TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-   */
-/**
- * @file mintdb/perf_taler_mintdb_values.h
- * @brief Values for tweaking the performance analysis
- * @author Nicolas Fournier
- */
-#ifndef __PERF_TALER_MINTDB__VALUES_H__
-#define __PERF_TALER_MINTDB__VALUES_H__
-
-
-#endif
diff --git a/src/mintdb/plugin_mintdb_common.c b/src/mintdb/plugin_mintdb_common.c
deleted file mode 100644
index 1f2fdc58b..000000000
--- a/src/mintdb/plugin_mintdb_common.c
+++ /dev/null
@@ -1,162 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2015 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mintdb/plugin_mintdb_common.c
- * @brief Functions shared across plugins, this file is meant to be
- *        included in each plugin.
- * @author Christian Grothoff
- */
-
-/**
- * Free memory associated with the given reserve history.
- *
- * @param cls the @e cls of this struct with the plugin-specific state (unused)
- * @param rh history to free.
- */
-static void
-common_free_reserve_history (void *cls,
-                             struct TALER_MINTDB_ReserveHistory *rh)
-{
-  struct TALER_MINTDB_BankTransfer *bt;
-  struct TALER_MINTDB_CollectableBlindcoin *cbc;
-  struct TALER_MINTDB_ReserveHistory *backref;
-
-  while (NULL != rh)
-  {
-    switch(rh->type)
-    {
-    case TALER_MINTDB_RO_BANK_TO_MINT:
-      bt = rh->details.bank;
-      if (NULL != bt->wire)
-        json_decref (bt->wire);
-      GNUNET_free (bt);
-      break;
-    case TALER_MINTDB_RO_WITHDRAW_COIN:
-      cbc = rh->details.withdraw;
-      GNUNET_CRYPTO_rsa_signature_free (cbc->sig.rsa_signature);
-      GNUNET_CRYPTO_rsa_public_key_free (cbc->denom_pub.rsa_public_key);
-      GNUNET_free (cbc);
-      break;
-    }
-    backref = rh;
-    rh = rh->next;
-    GNUNET_free (backref);
-  }
-}
-
-
-/**
- * Free memory of the link data list.
- *
- * @param cls the @e cls of this struct with the plugin-specific state (unused)
- * @param ldl link data list to release
- */
-static void
-common_free_link_data_list (void *cls,
-                            struct TALER_MINTDB_LinkDataList *ldl)
-{
-  struct TALER_MINTDB_LinkDataList *next;
-
-  while (NULL != ldl)
-  {
-    next = ldl->next;
-    GNUNET_free (ldl->link_data_enc);
-    GNUNET_free (ldl);
-    ldl = next;
-  }
-}
-
-
-/**
- * Free linked list of transactions.
- *
- * @param cls the @e cls of this struct with the plugin-specific state (unused)
- * @param list list to free
- */
-static void
-common_free_coin_transaction_list (void *cls,
-                                   struct TALER_MINTDB_TransactionList *list)
-{
-  struct TALER_MINTDB_TransactionList *next;
-
-  while (NULL != list)
-  {
-    next = list->next;
-
-    switch (list->type)
-    {
-    case TALER_MINTDB_TT_DEPOSIT:
-      json_decref (list->details.deposit->wire);
-      GNUNET_CRYPTO_rsa_public_key_free (list->details.deposit->coin.denom_pub.rsa_public_key);
-      GNUNET_CRYPTO_rsa_signature_free (list->details.deposit->coin.denom_sig.rsa_signature);
-      GNUNET_free (list->details.deposit);
-      break;
-    case TALER_MINTDB_TT_REFRESH_MELT:
-      GNUNET_free (list->details.melt);
-      break;
-    }
-    GNUNET_free (list);
-    list = next;
-  }
-}
-
-
-/**
- * Free melt commitment data.
- *
- * @param cls the @e cls of this struct with the plugin-specific state (unused)
- * @param mc data structure to free
- */
-static void
-common_free_melt_commitment (void *cls,
-                             struct TALER_MINTDB_MeltCommitment *mc)
-{
-  unsigned int i;
-  unsigned int k;
-
-  if (NULL != mc->melts)
-  {
-    for (i=0;i<mc->num_oldcoins;i++)
-    {
-      GNUNET_CRYPTO_rsa_signature_free (mc->melts[i].coin.denom_sig.rsa_signature);
-      GNUNET_CRYPTO_rsa_public_key_free (mc->melts[i].coin.denom_pub.rsa_public_key);
-    }
-    GNUNET_free (mc->melts);
-  }
-  if (NULL != mc->denom_pubs)
-  {
-    for (i=0;i<mc->num_newcoins;i++)
-      if (NULL != mc->denom_pubs[i].rsa_public_key)
-        GNUNET_CRYPTO_rsa_public_key_free (mc->denom_pubs[i].rsa_public_key);
-    GNUNET_free (mc->denom_pubs);
-  }
-  for (k=0;k<TALER_CNC_KAPPA;k++)
-  {
-    if (NULL != mc->commit_coins[k])
-    {
-      for (i=0;i<mc->num_newcoins;i++)
-      {
-        GNUNET_free (mc->commit_coins[k][i].refresh_link);
-        GNUNET_free (mc->commit_coins[k][i].coin_ev);
-      }
-      GNUNET_free (mc->commit_coins[k]);
-    }
-    GNUNET_free_non_null (mc->commit_links[k]);
-  }
-  GNUNET_free (mc);
-}
-
-/* end of plugin_mintdb_common.c */
diff --git a/src/mintdb/plugin_mintdb_postgres.c b/src/mintdb/plugin_mintdb_postgres.c
deleted file mode 100644
index 772b86e83..000000000
--- a/src/mintdb/plugin_mintdb_postgres.c
+++ /dev/null
@@ -1,4295 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-
-/**
- * @file plugin_mintdb_postgres.c
- * @brief Low-level (statement-level) Postgres database access for the mint
- * @author Florian Dold
- * @author Christian Grothoff
- * @author Sree Harsha Totakura
- */
-#include "platform.h"
-#include "taler_pq_lib.h"
-#include "taler_mintdb_plugin.h"
-#include <pthread.h>
-#include <libpq-fe.h>
-
-#include "plugin_mintdb_common.c"
-
-/**
- * For testing / experiments, we set the Postgres schema to
- * #TALER_TEMP_SCHEMA_NAME so we can easily purge everything
- * associated with a test.  We *also* should use the database
- * "talercheck" instead of "taler" for testing, but we're doing
- * both: better safe than sorry.
- */
-#define TALER_TEMP_SCHEMA_NAME "taler_temporary"
-
-/**
- * Log a query error.
- *
- * @param result PQ result object of the query that failed
- */
-#define QUERY_ERR(result)                          \
-  GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Query failed at %s:%u: %s\n", __FILE__, __LINE__, PQresultErrorMessage (result))
-
-
-/**
- * Log a really unexpected PQ error.
- *
- * @param result PQ result object of the PQ operation that failed
- */
-#define BREAK_DB_ERR(result) do { \
-    GNUNET_break (0); \
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Database failure: %s\n", PQresultErrorMessage (result)); \
-  } while (0)
-
-
-/**
- * Shorthand for exit jumps.  Logs the current line number
- * and jumps to the "EXITIF_exit" label.
- *
- * @param cond condition that must be TRUE to exit with an error
- */
-#define EXITIF(cond)                                              \
-  do {                                                            \
-    if (cond) { GNUNET_break (0); goto EXITIF_exit; }             \
-  } while (0)
-
-
-/**
- * Execute an SQL statement and log errors on failure. Must be
- * run in a function that has an "SQLEXEC_fail" label to jump
- * to in case the SQL statement failed.
- *
- * @param conn database connection
- * @param sql SQL statement to run
- */
-#define SQLEXEC_(conn, sql)                                             \
-  do {                                                                  \
-    PGresult *result = PQexec (conn, sql);                              \
-    if (PGRES_COMMAND_OK != PQresultStatus (result))                    \
-    {                                                                   \
-      BREAK_DB_ERR (result);                                            \
-      PQclear (result);                                                 \
-      goto SQLEXEC_fail;                                                \
-    }                                                                   \
-    PQclear (result);                                                   \
-  } while (0)
-
-
-/**
- * Run an SQL statement, ignoring errors and clearing the result.
- *
- * @param conn database connection
- * @param sql SQL statement to run
- */
-#define SQLEXEC_IGNORE_ERROR_(conn, sql)                                \
-  do {                                                                  \
-    PGresult *result = PQexec (conn, sql);                              \
-    PQclear (result);                                                   \
-  } while (0)
-
-
-/**
- * Handle for a database session (per-thread, for transactions).
- */
-struct TALER_MINTDB_Session
-{
-  /**
-   * Postgres connection handle.
-   */
-  PGconn *conn;
-};
-
-
-/**
- * Type of the "cls" argument given to each of the functions in
- * our API.
- */
-struct PostgresClosure
-{
-
-  /**
-   * Thread-local database connection.
-   * Contains a pointer to `PGconn` or NULL.
-   */
-  pthread_key_t db_conn_threadlocal;
-
-  /**
-   * Database connection string, as read from
-   * the configuration.
-   */
-  char *connection_cfg_str;
-};
-
-
-
-/**
- * Set the given connection to use a temporary schema
- *
- * @param db the database connection
- * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon error
- */
-static int
-set_temporary_schema (PGconn *db)
-{
-  SQLEXEC_(db,
-           "CREATE SCHEMA IF NOT EXISTS " TALER_TEMP_SCHEMA_NAME ";"
-           "SET search_path to " TALER_TEMP_SCHEMA_NAME ";");
-  return GNUNET_OK;
- SQLEXEC_fail:
-  return GNUNET_SYSERR;
-}
-
-
-/**
- * Drop the temporary taler schema.  This is only useful for testcases
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database session to use
- * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
- */
-static int
-postgres_drop_temporary (void *cls,
-                         struct TALER_MINTDB_Session *session)
-{
-  GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-              "Dropping temporary tables\n");
-  SQLEXEC_ (session->conn,
-            "DROP SCHEMA " TALER_TEMP_SCHEMA_NAME " CASCADE;");
-  return GNUNET_OK;
- SQLEXEC_fail:
-  return GNUNET_SYSERR;
-}
-
-
-/**
- * Function called by libpq whenever it wants to log something.
- * We already log whenever we care, so this function does nothing
- * and merely exists to silence the libpq logging.
- *
- * @param arg NULL
- * @param res information about some libpq event
- */
-static void
-pq_notice_receiver_cb (void *arg,
-                       const PGresult *res)
-{
-  /* do nothing, intentionally */
-}
-
-
-/**
- * Function called by libpq whenever it wants to log something.
- * We log those using the Taler logger.
- *
- * @param arg NULL
- * @param message information about some libpq event
- */
-static void
-pq_notice_processor_cb (void *arg,
-                        const char *message)
-{
-  GNUNET_log_from (GNUNET_ERROR_TYPE_INFO,
-                   "pq",
-                   "%s",
-                   message);
-}
-
-
-/**
- * Create the necessary tables if they are not present
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param temporary should we use a temporary schema
- * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
- */
-static int
-postgres_create_tables (void *cls,
-                        int temporary)
-{
-  struct PostgresClosure *pc = cls;
-  PGconn *conn;
-
-  conn = PQconnectdb (pc->connection_cfg_str);
-  if (CONNECTION_OK != PQstatus (conn))
-  {
-    TALER_LOG_ERROR ("Database connection failed: %s\n",
-                     PQerrorMessage (conn));
-    PQfinish (conn);
-    return GNUNET_SYSERR;
-  }
-  PQsetNoticeReceiver (conn,
-                       &pq_notice_receiver_cb,
-                       NULL);
-  PQsetNoticeProcessor (conn,
-                        &pq_notice_processor_cb,
-                        NULL);
-  if ( (GNUNET_YES == temporary) &&
-       (GNUNET_SYSERR == set_temporary_schema (conn)))
-  {
-    PQfinish (conn);
-    return GNUNET_SYSERR;
-  }
-#define SQLEXEC(sql) SQLEXEC_(conn, sql);
-#define SQLEXEC_INDEX(sql) SQLEXEC_IGNORE_ERROR_(conn, sql);
-  /* Denomination table for holding the publicly available information of
-     denominations keys.  The denominations are to be referred to by using
-     foreign keys.  The denominations are deleted by a housekeeping tool;
-     hence, do not use `ON DELETE CASCADE' on these rows in the tables
-     referencing these rows */
-  SQLEXEC ("CREATE TABLE IF NOT EXISTS denominations"
-           "(pub BYTEA PRIMARY KEY"
-           ",master_pub BYTEA NOT NULL CHECK (LENGTH(master_pub)=32)"
-           ",master_sig BYTEA NOT NULL CHECK (LENGTH(master_sig)=64)"
-           ",valid_from INT8 NOT NULL"
-           ",expire_withdraw INT8 NOT NULL"
-           ",expire_spend INT8 NOT NULL"
-           ",expire_legal INT8 NOT NULL"
-           ",coin_val INT8 NOT NULL" /* value of this denom */
-           ",coin_frac INT4 NOT NULL" /* fractional value of this denom */
-           ",coin_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL" /* assuming same currency for fees */
-           ",fee_withdraw_val INT8 NOT NULL"
-           ",fee_withdraw_frac INT4 NOT NULL"
-           ",fee_withdraw_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
-           ",fee_deposit_val INT8 NOT NULL"
-           ",fee_deposit_frac INT4 NOT NULL"
-           ",fee_deposit_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
-           ",fee_refresh_val INT8 NOT NULL"
-           ",fee_refresh_frac INT4 NOT NULL"
-           ",fee_refresh_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
-           ")");
-  /* reserves table is for summarization of a reserve.  It is updated when new
-     funds are added and existing funds are withdrawn.  The 'expiration_date'
-     can be used to eventually get rid of reserves that have not been used
-     for a very long time (either by refunding the owner or by greedily
-     grabbing the money, depending on the Mint's terms of service) */
-  SQLEXEC ("CREATE TABLE IF NOT EXISTS reserves"
-           "(reserve_pub BYTEA PRIMARY KEY"
-           ",current_balance_val INT8 NOT NULL"
-           ",current_balance_frac INT4 NOT NULL"
-           ",current_balance_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
-           ",expiration_date INT8 NOT NULL"
-           ")");
-  /* index on reserves table */
-  SQLEXEC_INDEX ("CREATE INDEX reserves_reserve_pub_index ON "
-                 "reserves (reserve_pub)");
-  /* reserves_in table collects the transactions which transfer funds
-     into the reserve.  The rows of this table correspond to each
-     incoming transaction. */
-  SQLEXEC("CREATE TABLE IF NOT EXISTS reserves_in"
-          "(reserve_pub BYTEA REFERENCES reserves (reserve_pub) ON DELETE CASCADE"
-          ",balance_val INT8 NOT NULL"
-          ",balance_frac INT4 NOT NULL"
-          ",balance_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
-          ",details TEXT NOT NULL "
-          ",execution_date INT8 NOT NULL"
-          ",PRIMARY KEY (reserve_pub,details)"
-          ");");
-  /* Create indices on reserves_in */
-  SQLEXEC_INDEX ("CREATE INDEX reserves_in_reserve_pub_index"
-		 " ON reserves_in (reserve_pub);");
-  SQLEXEC_INDEX ("CREATE INDEX reserves_in_reserve_pub_details_index"
-		 " ON reserves_in (reserve_pub,details);");
-  SQLEXEC_INDEX ("CREATE INDEX execution_index"
-		 " ON reserves_in (execution_date);");
-  /* Table with the withdraw operations that have been performed on a reserve.
-     The 'h_blind_ev' is the hash of the blinded coin. It serves as a primary
-     key, as (broken) clients that use a non-random coin and blinding factor
-     should fail to even withdraw, as otherwise the coins will fail to deposit
-     (as they really must be unique). */
-  SQLEXEC ("CREATE TABLE IF NOT EXISTS reserves_out"
-           "(h_blind_ev BYTEA PRIMARY KEY"
-           ",denom_pub BYTEA NOT NULL REFERENCES denominations (pub)"
-           ",denom_sig BYTEA NOT NULL"
-           ",reserve_pub BYTEA NOT NULL CHECK (LENGTH(reserve_pub)=32) REFERENCES reserves (reserve_pub) ON DELETE CASCADE"
-           ",reserve_sig BYTEA NOT NULL CHECK (LENGTH(reserve_sig)=64)"
-           ",execution_date INT8 NOT NULL"
-           ",amount_with_fee_val INT8 NOT NULL"
-           ",amount_with_fee_frac INT4 NOT NULL"
-           ",amount_with_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
-           ",withdraw_fee_val INT8 NOT NULL"
-           ",withdraw_fee_frac INT4 NOT NULL"
-           ",withdraw_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
-           ");");
-  /* Index blindcoins(reserve_pub) for get_reserves_out statement */
-  SQLEXEC_INDEX ("CREATE INDEX reserves_out_reserve_pub_index ON"
-                 " reserves_out (reserve_pub)");
-  SQLEXEC_INDEX ("CREATE INDEX reserves_out_h_blind_ev_index ON "
-                 "reserves_out (h_blind_ev)");
-  /* Table with coins that have been (partially) spent, used to track
-     coin information only once. */
-  SQLEXEC("CREATE TABLE IF NOT EXISTS known_coins "
-          "(coin_pub BYTEA NOT NULL PRIMARY KEY"
-          ",denom_pub BYTEA NOT NULL REFERENCES denominations (pub)"
-          ",denom_sig BYTEA NOT NULL"
-          ")");
-  /**
-   * The DB will show negative values for some values of the following fields as
-   * we use them as 16 bit unsigned integers
-   *   @a num_oldcoins
-   *   @a num_newcoins
-   * Do not do arithmetic in SQL on these fields.
-   * NOTE: maybe we should instead forbid values >= 2^15 categorically?
-   */
-  SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_sessions "
-          "(session_hash BYTEA PRIMARY KEY CHECK (LENGTH(session_hash)=64)"
-          ",num_oldcoins INT2 NOT NULL"
-          ",num_newcoins INT2 NOT NULL"
-          ",noreveal_index INT2 NOT NULL"
-          ")");
-  /* Table with coins that have been melted.  Gives the coin's public
-     key (coin_pub), the melting session, the index of this coin in that
-     session, the signature affirming the melting and the amount that
-     this coin contributed to the melting session.
-  */
-  SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_melts "
-          "(coin_pub BYTEA NOT NULL REFERENCES known_coins (coin_pub)"
-          ",session_hash BYTEA NOT NULL REFERENCES refresh_sessions (session_hash)"
-          ",oldcoin_index INT2 NOT NULL"
-          ",coin_sig BYTEA NOT NULL CHECK(LENGTH(coin_sig)=64)"
-          ",amount_with_fee_val INT8 NOT NULL"
-          ",amount_with_fee_frac INT4 NOT NULL"
-          ",amount_with_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
-          ",melt_fee_val INT8 NOT NULL"
-          ",melt_fee_frac INT4 NOT NULL"
-          ",melt_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
-          ",PRIMARY KEY (session_hash, oldcoin_index)" /* a coin can be used only
-                                                 once in a refresh session */
-          ") ");
-  /* Table with information about the desired denominations to be created
-     during a refresh operation; contains the denomination key for each
-     of the coins (for a given refresh session) */
-  SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_order "
-          "(session_hash BYTEA NOT NULL CHECK (LENGTH(session_hash)=64) REFERENCES refresh_sessions (session_hash)"
-          ",newcoin_index INT2 NOT NULL "
-          ",denom_pub BYTEA NOT NULL REFERENCES denominations (pub)"
-          ",PRIMARY KEY (session_hash, newcoin_index)"
-          ")");
-
-  /* Table with the commitments for a refresh operation; includes
-     the session_hash for which this is the link information, the
-     oldcoin index and the cut-and-choose index (from 0 to #TALER_CNC_KAPPA-1),
-     as well as the actual link data (the transfer public key and the encrypted
-     link secret).
-     NOTE: We might want to simplify this and not have the oldcoin_index
-     and instead store all link secrets, one after the other, in one big BYTEA.
-     (#3814) */
-  SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_commit_link "
-          "(session_hash BYTEA NOT NULL REFERENCES refresh_sessions (session_hash)"
-          ",transfer_pub BYTEA NOT NULL CHECK(LENGTH(transfer_pub)=32)"
-          ",link_secret_enc BYTEA NOT NULL"
-          ",oldcoin_index INT2 NOT NULL"
-          ",cnc_index INT2 NOT NULL"
-          ")");
-  /* Table with the commitments for the new coins that are to be created
-     during a melting session.  Includes the session, the cut-and-choose
-     index and the index of the new coin, and the envelope of the new
-     coin to be signed, as well as the encrypted information about the
-     private key and the blinding factor for the coin (for verification
-     in case this cnc_index is chosen to be revealed)
-
-     NOTE: We might want to simplify this and not have the
-     newcoin_index and instead store all coin_evs and
-     link_vector_encs, one after the other, in two big BYTEAs.
-     (#3815) */
-  SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_commit_coin "
-          "(session_hash BYTEA NOT NULL REFERENCES refresh_sessions (session_hash) "
-          ",cnc_index INT2 NOT NULL"
-          ",newcoin_index INT2 NOT NULL"
-          ",link_vector_enc BYTEA NOT NULL"
-          ",coin_ev BYTEA NOT NULL"
-          ")");
-  /* Table with the signatures over coins generated during a refresh
-     operation. Needed to answer /refresh/link queries later.  Stores
-     the coin signatures under the respective session hash and index. */
-  SQLEXEC("CREATE TABLE IF NOT EXISTS refresh_out "
-          "(session_hash BYTEA NOT NULL CHECK(LENGTH(session_hash)=64) REFERENCES refresh_sessions (session_hash) "
-          ",newcoin_index INT2 NOT NULL"
-          ",ev_sig BYTEA NOT NULL"
-          ")");
-  /* This table contains the wire transfers the mint is supposed to
-     execute to transmit funds to the merchants (and manage refunds). */
-  SQLEXEC("CREATE TABLE IF NOT EXISTS deposits "
-          "(serial_id BIGSERIAL PRIMARY KEY"
-          ",coin_pub BYTEA NOT NULL CHECK (LENGTH(coin_pub)=32)"
-          ",denom_pub BYTEA NOT NULL REFERENCES denominations (pub)"
-          ",denom_sig BYTEA NOT NULL"
-          ",transaction_id INT8 NOT NULL"
-          ",amount_with_fee_val INT8 NOT NULL"
-          ",amount_with_fee_frac INT4 NOT NULL"
-          ",amount_with_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
-          ",deposit_fee_val INT8 NOT NULL"
-          ",deposit_fee_frac INT4 NOT NULL"
-          ",deposit_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
-          ",timestamp INT8 NOT NULL"
-          ",refund_deadline INT8 NOT NULL"
-          ",wire_deadline INT8 NOT NULL"
-          ",merchant_pub BYTEA NOT NULL CHECK (LENGTH(merchant_pub)=32)"
-          ",h_contract BYTEA NOT NULL CHECK (LENGTH(h_contract)=64)"
-          ",h_wire BYTEA NOT NULL CHECK (LENGTH(h_wire)=64)"
-          ",coin_sig BYTEA NOT NULL CHECK (LENGTH(coin_sig)=64)"
-          ",wire TEXT NOT NULL"
-          ",tiny BOOLEAN NOT NULL DEFAULT false"
-          ",done BOOLEAN NOT NULL DEFAULT false"
-          ")");
-  /* Index for get_deposit statement on coin_pub, transaction_id and merchant_pub */
-  SQLEXEC_INDEX("CREATE INDEX deposits_coin_pub_index "
-                "ON deposits(coin_pub, transaction_id, merchant_pub)");
-  /* Table for the tracking API, mapping from wire transfer identifiers
-     to transactions and back */
-  SQLEXEC("CREATE TABLE IF NOT EXISTS aggregation_tracking "
-          "(h_contract BYTEA CHECK (LENGTH(h_contract)=64)"
-          ",h_wire BYTEA CHECK (LENGTH(h_wire)=64)"
-          ",coin_pub BYTEA NOT NULL CHECK (LENGTH(coin_pub)=32)"
-          ",merchant_pub BYTEA NOT NULL CHECK (LENGTH(merchant_pub)=32)"
-          ",transaction_id INT8 NOT NULL"
-          ",wtid_raw BYTEA NOT NULL CHECK (LENGTH(merchant_pub)=" TALER_WIRE_TRANSFER_IDENTIFIER_LEN_STR ")"
-          ",execution_time INT8 NOT NULL"
-          ",coin_amount_val INT8 NOT NULL"
-          ",coin_amount_frac INT4 NOT NULL"
-          ",coin_amount_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
-          ",coin_fee_val INT8 NOT NULL"
-          ",coin_fee_frac INT4 NOT NULL"
-          ",coin_fee_curr VARCHAR("TALER_CURRENCY_LEN_STR") NOT NULL"
-          ")");
-  /* Index for lookup_transactions statement on wtid */
-  SQLEXEC_INDEX("CREATE INDEX aggregation_tracking_wtid_index "
-                "ON aggregation_tracking(wtid_raw)");
-  /* Index for lookup_deposit_wtid statement */
-  SQLEXEC_INDEX("CREATE INDEX aggregation_tracking_deposit_index "
-                "ON aggregation_tracking(coin_pub,h_contract,h_wire,transaction_id,merchant_pub)");
-
-  /* This table contains the pre-commit data for
-     wire transfers the mint is about to execute. */
-  SQLEXEC("CREATE TABLE IF NOT EXISTS prewire "
-          "(serial_id BIGSERIAL PRIMARY KEY"
-          ",type TEXT NOT NULL"
-          ",finished BOOLEAN NOT NULL DEFAULT false"
-          ",buf BYTEA NOT NULL"
-          ")");
-  /* Index for prepare_data_iterate statement */
-  SQLEXEC_INDEX("CREATE INDEX prepare_iteration_index "
-                "ON prewire(type,finished)");
-
-
-#undef SQLEXEC
-#undef SQLEXEC_INDEX
-
-  PQfinish (conn);
-  return GNUNET_OK;
-
- SQLEXEC_fail:
-  PQfinish (conn);
-  return GNUNET_SYSERR;
-}
-
-
-/**
- * Setup prepared statements.
- *
- * @param db_conn connection handle to initialize
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on failure
- */
-static int
-postgres_prepare (PGconn *db_conn)
-{
-  PGresult *result;
-
-#define PREPARE(name, sql, ...)                                 \
-  do {                                                          \
-    result = PQprepare (db_conn, name, sql, __VA_ARGS__);       \
-    if (PGRES_COMMAND_OK != PQresultStatus (result))            \
-    {                                                           \
-      BREAK_DB_ERR (result);                                    \
-      PQclear (result); result = NULL;                          \
-      return GNUNET_SYSERR;                                     \
-    }                                                           \
-    PQclear (result); result = NULL;                            \
-  } while (0);
-
-  /* Used in #postgres_insert_denomination_info() */
-  PREPARE ("denomination_insert",
-           "INSERT INTO denominations "
-           "(pub"
-           ",master_pub"
-           ",master_sig"
-           ",valid_from"
-           ",expire_withdraw"
-           ",expire_spend"
-           ",expire_legal"
-           ",coin_val" /* value of this denom */
-           ",coin_frac" /* fractional value of this denom */
-           ",coin_curr" /* assuming same currency for fees */
-           ",fee_withdraw_val"
-           ",fee_withdraw_frac"
-           ",fee_withdraw_curr" /* must match coin_curr */
-           ",fee_deposit_val"
-           ",fee_deposit_frac"
-           ",fee_deposit_curr"  /* must match coin_curr */
-           ",fee_refresh_val"
-           ",fee_refresh_frac"
-           ",fee_refresh_curr" /* must match coin_curr */
-           ") VALUES "
-           "($1, $2, $3, $4, $5, $6, $7, $8, $9, $10,"
-           " $11, $12, $13, $14, $15, $16, $17, $18, $19);",
-           19, NULL);
-
-  /* Used in #postgres_get_denomination_info() */
-  PREPARE ("denomination_get",
-           "SELECT"
-           " master_pub"
-           ",master_sig"
-           ",valid_from"
-           ",expire_withdraw"
-           ",expire_spend"
-           ",expire_legal"
-           ",coin_val"  /* value of this denom */
-           ",coin_frac" /* fractional value of this denom */
-           ",coin_curr" /* assuming same currency for fees */
-           ",fee_withdraw_val"
-           ",fee_withdraw_frac"
-           ",fee_withdraw_curr" /* must match coin_curr */
-           ",fee_deposit_val"
-           ",fee_deposit_frac"
-           ",fee_deposit_curr"  /* must match coin_curr */
-           ",fee_refresh_val"
-           ",fee_refresh_frac"
-           ",fee_refresh_curr" /* must match coin_curr */
-           " FROM denominations"
-           " WHERE pub=$1;",
-           1, NULL);
-
-  /* Used in #postgres_reserve_get() */
-  PREPARE ("reserve_get",
-           "SELECT"
-           " current_balance_val"
-           ",current_balance_frac"
-           ",current_balance_curr"
-           ",expiration_date"
-           " FROM reserves"
-           " WHERE reserve_pub=$1"
-           " LIMIT 1;",
-           1, NULL);
-
-  /* Used in #postgres_reserves_in_insert() when the reserve is new */
-  PREPARE ("reserve_create",
-           "INSERT INTO reserves "
-           "(reserve_pub"
-           ",current_balance_val"
-           ",current_balance_frac"
-           ",current_balance_curr"
-           ",expiration_date"
-           ") VALUES "
-           "($1, $2, $3, $4, $5);",
-           5, NULL);
-
-  /* Used in #postgres_reserves_update() when the reserve is updated */
-  PREPARE ("reserve_update",
-           "UPDATE reserves"
-           " SET"
-           " expiration_date=$1 "
-           ",current_balance_val=$2 "
-           ",current_balance_frac=$3 "
-           "WHERE current_balance_curr=$4 AND reserve_pub=$5",
-           5, NULL);
-
-  /* Used in #postgres_reserves_in_insert() to store transaction details */
-  PREPARE ("reserves_in_add_transaction",
-           "INSERT INTO reserves_in "
-           "(reserve_pub"
-           ",balance_val"
-           ",balance_frac"
-           ",balance_curr"
-           ",details"
-           ",execution_date"
-           ") VALUES "
-           "($1, $2, $3, $4, $5, $6);",
-           6, NULL);
-
-  /* Used in #postgres_get_reserve_history() to obtain inbound transactions
-     for a reserve */
-  PREPARE ("reserves_in_get_transactions",
-           "SELECT"
-           " balance_val"
-           ",balance_frac"
-           ",balance_curr"
-           ",execution_date"
-           ",details"
-           " FROM reserves_in"
-           " WHERE reserve_pub=$1",
-           1, NULL);
-
-  /* Used in #postgres_insert_withdraw_info() to store
-     the signature of a blinded coin with the blinded coin's
-     details before returning it during /reserve/withdraw. We store
-     the coin's denomination information (public key, signature)
-     and the blinded message as well as the reserve that the coin
-     is being withdrawn from and the signature of the message
-     authorizing the withdrawal. */
-  PREPARE ("insert_withdraw_info",
-           "INSERT INTO reserves_out "
-           "(h_blind_ev"
-           ",denom_pub"
-           ",denom_sig"
-           ",reserve_pub"
-           ",reserve_sig"
-           ",execution_date"
-           ",amount_with_fee_val"
-           ",amount_with_fee_frac"
-           ",amount_with_fee_curr"
-           ",withdraw_fee_val"
-           ",withdraw_fee_frac"
-           ",withdraw_fee_curr"
-           ") VALUES "
-           "($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12);",
-           12, NULL);
-
-  /* Used in #postgres_get_withdraw_info() to
-     locate the response for a /reserve/withdraw request
-     using the hash of the blinded message.  Used to
-     make sure /reserve/withdraw requests are idempotent. */
-  PREPARE ("get_withdraw_info",
-           "SELECT"
-           " denom_pub"
-           ",denom_sig"
-           ",reserve_sig"
-           ",reserve_pub"
-           ",execution_date"
-           ",amount_with_fee_val"
-           ",amount_with_fee_frac"
-           ",amount_with_fee_curr"
-           ",withdraw_fee_val"
-           ",withdraw_fee_frac"
-           ",withdraw_fee_curr"
-           " FROM reserves_out"
-           " WHERE h_blind_ev=$1",
-           1, NULL);
-
-  /* Used during #postgres_get_reserve_history() to
-     obtain all of the /reserve/withdraw operations that
-     have been performed on a given reserve. (i.e. to
-     demonstrate double-spending) */
-  PREPARE ("get_reserves_out",
-           "SELECT"
-           " h_blind_ev"
-           ",denom_pub"
-           ",denom_sig"
-           ",reserve_sig"
-           ",execution_date"
-           ",amount_with_fee_val"
-           ",amount_with_fee_frac"
-           ",amount_with_fee_curr"
-           ",withdraw_fee_val"
-           ",withdraw_fee_frac"
-           ",withdraw_fee_curr"
-           " FROM reserves_out"
-           " WHERE reserve_pub=$1;",
-           1, NULL);
-
-  /* Used in #postgres_get_refresh_session() to fetch
-     high-level information about a refresh session */
-  PREPARE ("get_refresh_session",
-           "SELECT"
-           " num_oldcoins"
-           ",num_newcoins"
-           ",noreveal_index"
-           " FROM refresh_sessions "
-           " WHERE session_hash=$1 ",
-           1, NULL);
-
-  /* Used in #postgres_create_refresh_session() to store
-     high-level information about a refresh session */
-  PREPARE ("insert_refresh_session",
-           "INSERT INTO refresh_sessions "
-           "(session_hash "
-           ",num_oldcoins "
-           ",num_newcoins "
-           ",noreveal_index "
-           ") VALUES "
-           "($1, $2, $3, $4);",
-           4, NULL);
-
-  /* Used in #postgres_get_known_coin() to fetch
-     the denomination public key and signature for
-     a coin known to the mint. */
-  PREPARE ("get_known_coin",
-           "SELECT"
-           " denom_pub"
-           ",denom_sig"
-           " FROM known_coins"
-           " WHERE coin_pub=$1",
-           1, NULL);
-
-  /* Used in #postgres_insert_known_coin() to store
-     the denomination public key and signature for
-     a coin known to the mint. */
-  PREPARE ("insert_known_coin",
-           "INSERT INTO known_coins "
-           "(coin_pub"
-           ",denom_pub"
-           ",denom_sig"
-           ") VALUES "
-           "($1,$2,$3);",
-           3, NULL);
-
-  /* Store information about the desired denominations for a
-     refresh operation, used in #postgres_insert_refresh_order() */
-  PREPARE ("insert_refresh_order",
-           "INSERT INTO refresh_order "
-           "(newcoin_index "
-           ",session_hash "
-           ",denom_pub "
-           ") VALUES "
-           "($1, $2, $3);",
-           3, NULL);
-
-  /* Obtain information about the desired denominations for a
-     refresh operation, used in #postgres_get_refresh_order() */
-  PREPARE ("get_refresh_order",
-           "SELECT denom_pub"
-           " FROM refresh_order"
-           " WHERE session_hash=$1 AND newcoin_index=$2",
-           2, NULL);
-
-  /* Used in #postgres_insert_refresh_melt to store information
-     about melted coins */
-  PREPARE ("insert_refresh_melt",
-           "INSERT INTO refresh_melts "
-           "(coin_pub "
-           ",session_hash"
-           ",oldcoin_index "
-           ",coin_sig "
-           ",amount_with_fee_val "
-           ",amount_with_fee_frac "
-           ",amount_with_fee_curr "
-           ",melt_fee_val "
-           ",melt_fee_frac "
-           ",melt_fee_curr "
-           ") VALUES "
-           "($1, $2, $3, $4, $5, $6, $7, $8, $9, $10);",
-           10, NULL);
-
-  /* Used in #postgres_get_refresh_melt to obtain information
-     about melted coins */
-  PREPARE ("get_refresh_melt",
-           "SELECT"
-           " coin_pub"
-           ",coin_sig"
-           ",amount_with_fee_val"
-           ",amount_with_fee_frac"
-           ",amount_with_fee_curr"
-           ",melt_fee_val "
-           ",melt_fee_frac "
-           ",melt_fee_curr "
-           " FROM refresh_melts"
-           " WHERE session_hash=$1 AND oldcoin_index=$2",
-           2, NULL);
-
-  /* Query the 'refresh_melts' by coin public key */
-  PREPARE ("get_refresh_melt_by_coin",
-           "SELECT"
-           " session_hash"
-           /* ",oldcoin_index" // not needed */
-           ",coin_sig"
-           ",amount_with_fee_val"
-           ",amount_with_fee_frac"
-           ",amount_with_fee_curr"
-           ",melt_fee_val "
-           ",melt_fee_frac "
-           ",melt_fee_curr "
-           " FROM refresh_melts"
-           " WHERE coin_pub=$1",
-           1, NULL);
-
-  /* Used in #postgres_insert_refresh_commit_links() to
-     store commitments */
-  PREPARE ("insert_refresh_commit_link",
-           "INSERT INTO refresh_commit_link "
-           "(session_hash"
-           ",transfer_pub"
-           ",cnc_index"
-           ",oldcoin_index"
-           ",link_secret_enc"
-           ") VALUES "
-           "($1, $2, $3, $4, $5);",
-           5, NULL);
-
-  /* Used in #postgres_get_refresh_commit_links() to
-     retrieve original commitments during /refresh/reveal */
-  PREPARE ("get_refresh_commit_link",
-           "SELECT"
-           " transfer_pub"
-           ",link_secret_enc"
-           " FROM refresh_commit_link"
-           " WHERE session_hash=$1 AND cnc_index=$2 AND oldcoin_index=$3",
-           3, NULL);
-
-  /* Used in #postgres_insert_refresh_commit_coins() to
-     store coin commitments. */
-  PREPARE ("insert_refresh_commit_coin",
-           "INSERT INTO refresh_commit_coin "
-           "(session_hash"
-           ",cnc_index"
-           ",newcoin_index"
-           ",link_vector_enc"
-           ",coin_ev"
-           ") VALUES "
-           "($1, $2, $3, $4, $5);",
-           5, NULL);
-
-  /* Used in #postgres_get_refresh_commit_coins() to
-     retrieve the original coin envelopes, to either be
-     verified or signed. */
-  PREPARE ("get_refresh_commit_coin",
-           "SELECT"
-           " link_vector_enc"
-           ",coin_ev"
-           " FROM refresh_commit_coin"
-           " WHERE session_hash=$1 AND cnc_index=$2 AND newcoin_index=$3",
-           3, NULL);
-
-  /* Store information about a /deposit the mint is to execute.
-     Used in #postgres_insert_deposit(). */
-  PREPARE ("insert_deposit",
-           "INSERT INTO deposits "
-           "(coin_pub"
-           ",denom_pub"
-           ",denom_sig"
-           ",transaction_id"
-           ",amount_with_fee_val"
-           ",amount_with_fee_frac"
-           ",amount_with_fee_curr"
-           ",deposit_fee_val"
-           ",deposit_fee_frac"
-           ",deposit_fee_curr"
-           ",timestamp"
-           ",refund_deadline"
-           ",wire_deadline"
-           ",merchant_pub"
-           ",h_contract"
-           ",h_wire"
-           ",coin_sig"
-           ",wire"
-           ") VALUES "
-           "($1, $2, $3, $4, $5, $6, $7, $8, $9, $10,"
-           " $11, $12, $13, $14, $15, $16, $17, $18);",
-           18, NULL);
-
-  /* Fetch an existing deposit request, used to ensure idempotency
-     during /deposit processing. Used in #postgres_have_deposit(). */
-  PREPARE ("get_deposit",
-           "SELECT"
-           " amount_with_fee_val"
-           ",amount_with_fee_frac"
-           ",amount_with_fee_curr"
-           ",timestamp"
-           ",refund_deadline"
-           ",wire_deadline"
-           ",h_contract"
-           ",h_wire"
-           " FROM deposits"
-           " WHERE ("
-           "  (coin_pub=$1) AND"
-           "  (transaction_id=$2) AND"
-           "  (merchant_pub=$3)"
-           " )",
-           3, NULL);
-
-  /* Fetch an existing deposit request.
-     Used in #postgres_wire_lookup_deposit_wtid(). */
-  PREPARE ("get_deposit_for_wtid",
-           "SELECT"
-           " amount_with_fee_val"
-           ",amount_with_fee_frac"
-           ",amount_with_fee_curr"
-           ",deposit_fee_val"
-           ",deposit_fee_frac"
-           ",deposit_fee_curr"
-           ",wire_deadline"
-           " FROM deposits"
-           " WHERE ("
-           "  (coin_pub=$1) AND"
-           "  (transaction_id=$2) AND"
-           "  (merchant_pub=$3) AND"
-           "  (h_contract=$4) AND"
-           "  (h_wire=$5)"
-           " )",
-           5, NULL);
-
-  /* Used in #postgres_get_ready_deposit() */
-  PREPARE ("deposits_get_ready",
-           "SELECT"
-           " serial_id"
-           ",amount_with_fee_val"
-           ",amount_with_fee_frac"
-           ",amount_with_fee_curr"
-           ",deposit_fee_val"
-           ",deposit_fee_frac"
-           ",deposit_fee_curr"
-           ",wire_deadline"
-           ",transaction_id"
-           ",h_contract"
-           ",wire"
-           ",merchant_pub"
-           ",coin_pub"
-           " FROM deposits"
-           " WHERE"
-           " tiny=false AND"
-           " done=false"
-           " ORDER BY wire_deadline ASC"
-           " LIMIT 1;",
-           0, NULL);
-
-  /* Used in #postgres_iterate_matching_deposits() */
-  PREPARE ("deposits_iterate_matching",
-           "SELECT"
-           " serial_id"
-           ",amount_with_fee_val"
-           ",amount_with_fee_frac"
-           ",amount_with_fee_curr"
-           ",deposit_fee_val"
-           ",deposit_fee_frac"
-           ",deposit_fee_curr"
-           ",wire_deadline"
-           ",transaction_id"
-           ",h_contract"
-           ",coin_pub"
-           " FROM deposits"
-           " WHERE"
-           " merchant_pub=$1 AND"
-           " h_wire=$2 AND"
-           " done=false"
-           " ORDER BY wire_deadline ASC"
-           " LIMIT $3",
-           3, NULL);
-
-  /* Used in #postgres_mark_deposit_tiny() */
-  PREPARE ("mark_deposit_tiny",
-           "UPDATE deposits"
-           " SET tiny=true"
-           " WHERE serial_id=$1",
-           1, NULL);
-
-  /* Used in #postgres_mark_deposit_done() */
-  PREPARE ("mark_deposit_done",
-           "UPDATE deposits"
-           " SET done=true"
-           " WHERE serial_id=$1",
-           1, NULL);
-
-  /* Used in #postgres_get_coin_transactions() to obtain information
-     about how a coin has been spend with /deposit requests. */
-  PREPARE ("get_deposit_with_coin_pub",
-           "SELECT"
-           " denom_pub"
-           ",denom_sig"
-           ",transaction_id"
-           ",amount_with_fee_val"
-           ",amount_with_fee_frac"
-           ",amount_with_fee_curr"
-           ",deposit_fee_val"
-           ",deposit_fee_frac"
-           ",deposit_fee_curr"
-           ",timestamp"
-           ",refund_deadline"
-           ",merchant_pub"
-           ",h_contract"
-           ",h_wire"
-           ",wire"
-           ",coin_sig"
-           " FROM deposits"
-           " WHERE coin_pub=$1",
-           1, NULL);
-
-  /* Used in #postgres_insert_refresh_out() to store the
-     generated signature(s) for future requests, i.e. /refresh/link */
-  PREPARE ("insert_refresh_out",
-           "INSERT INTO refresh_out "
-           "(session_hash"
-           ",newcoin_index"
-           ",ev_sig"
-           ") VALUES "
-           "($1, $2, $3)",
-           3, NULL);
-
-  /* Used in #postgres_get_link_data_list().  We use the session_hash
-     to obtain the "noreveal_index" for that session, and then select
-     the encrypted link vectors (link_vector_enc) and the
-     corresponding signatures (ev_sig) and the denomination keys from
-     the respective tables (namely refresh_melts and refresh_order)
-     using the session_hash as the primary filter (on join) and the
-     'noreveal_index' to constrain the selection on the commitment.
-     We also want to get the triplet for each of the newcoins, so we
-     have another constraint to ensure we get each triplet with
-     matching "newcoin_index" values.  NOTE: This may return many
-     results, both for different sessions and for the different coins
-     being minted in the refresh ops.  NOTE: There may be more
-     efficient ways to express the same query.  */
-  PREPARE ("get_link",
-           "SELECT link_vector_enc,ev_sig,ro.denom_pub"
-           " FROM refresh_melts rm "
-           "     JOIN refresh_order ro USING (session_hash)"
-           "     JOIN refresh_commit_coin rcc USING (session_hash)"
-           "     JOIN refresh_sessions rs USING (session_hash)"
-           "     JOIN refresh_out rc USING (session_hash)"
-           " WHERE ro.session_hash=$1"
-           "  AND ro.newcoin_index=rcc.newcoin_index"
-           "  AND ro.newcoin_index=rc.newcoin_index"
-           "  AND rcc.cnc_index=rs.noreveal_index",
-           1, NULL);
-
-  /* Used in #postgres_get_transfer().  Given the public key of a
-     melted coin, we obtain the corresponding encrypted link secret
-     and the transfer public key.  This is done by first finding
-     the session_hash(es) of all sessions the coin was melted into,
-     and then constraining the result to the selected "noreveal_index"
-     and the transfer public key to the corresponding index of the
-     old coin.
-     NOTE: This may (in theory) return multiple results, one per session
-     that the old coin was melted into. */
-  PREPARE ("get_transfer",
-           "SELECT transfer_pub,link_secret_enc,session_hash"
-           " FROM refresh_melts rm"
-           "     JOIN refresh_commit_link rcl USING (session_hash)"
-           "     JOIN refresh_sessions rs USING (session_hash)"
-           " WHERE rm.coin_pub=$1"
-           "  AND rm.oldcoin_index = rcl.oldcoin_index"
-           "  AND rcl.cnc_index=rs.noreveal_index",
-           1, NULL);
-
-  /* Used in #postgres_lookup_wire_transfer */
-  PREPARE ("lookup_transactions",
-           "SELECT"
-           " h_contract"
-           ",h_wire"
-           ",coin_pub"
-           ",merchant_pub"
-           ",transaction_id"
-           ",execution_time"
-           ",coin_amount_val"
-           ",coin_amount_frac"
-           ",coin_amount_curr"
-           ",coin_fee_val"
-           ",coin_fee_frac"
-           ",coin_fee_curr"
-           " FROM aggregation_tracking"
-           " WHERE wtid_raw=$1",
-           1, NULL);
-
-  /* Used in #postgres_wire_lookup_deposit_wtid */
-  PREPARE ("lookup_deposit_wtid",
-           "SELECT"
-           " wtid_raw"
-           ",execution_time"
-           ",coin_amount_val"
-           ",coin_amount_frac"
-           ",coin_amount_curr"
-           ",coin_fee_val"
-           ",coin_fee_frac"
-           ",coin_fee_curr"
-           " FROM aggregation_tracking"
-           " WHERE"
-           " coin_pub=$1 AND"
-           " h_contract=$2 AND"
-           " h_wire=$3 AND"
-           " transaction_id=$4 AND"
-           " merchant_pub=$5",
-           5, NULL);
-
-  /* Used in #postgres_insert_aggregation_tracking */
-  PREPARE ("insert_aggregation_tracking",
-           "INSERT INTO aggregation_tracking "
-           "(h_contract"
-           ",h_wire"
-           ",coin_pub"
-           ",merchant_pub"
-           ",transaction_id"
-           ",wtid_raw"
-           ",execution_time"
-           ",coin_amount_val"
-           ",coin_amount_frac"
-           ",coin_amount_curr"
-           ",coin_fee_val"
-           ",coin_fee_frac"
-           ",coin_fee_curr"
-           ") VALUES "
-           "($1, $2, $3, $4, $5, $6, $7, $8, $9, $10, $11, $12, $13)",
-           13, NULL);
-
-
-  /* Used in #postgres_wire_prepare_data_insert() to store
-     wire transfer information before actually committing it with the bank */
-  PREPARE ("wire_prepare_data_insert",
-           "INSERT INTO prewire "
-           "(type"
-           ",buf"
-           ") VALUES "
-           "($1, $2)",
-           2, NULL);
-
-  /* Used in #postgres_wire_prepare_data_mark_finished() */
-  PREPARE ("wire_prepare_data_mark_done",
-           "UPDATE prewire"
-           " SET finished=true"
-           " WHERE serial_id=$1",
-           1, NULL);
-
-  /* Used in #postgres_wire_prepare_data_get() */
-  PREPARE ("wire_prepare_data_get",
-           "SELECT"
-           " serial_id"
-           ",buf"
-           " FROM prewire"
-           " WHERE"
-           " type=$1 AND"
-           " finished=false"
-           " ORDER BY serial_id ASC"
-           " LIMIT 1",
-           1, NULL);
-
-  return GNUNET_OK;
-#undef PREPARE
-}
-
-
-/**
- * Close thread-local database connection when a thread is destroyed.
- *
- * @param cls closure we get from pthreads (the db handle)
- */
-static void
-db_conn_destroy (void *cls)
-{
-  struct TALER_MINTDB_Session *session = cls;
-  PGconn *db_conn = session->conn;
-
-  if (NULL != db_conn)
-    PQfinish (db_conn);
-  GNUNET_free (session);
-}
-
-
-/**
- * Get the thread-local database-handle.
- * Connect to the db if the connection does not exist yet.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param temporary #GNUNET_YES to use a temporary schema; #GNUNET_NO to use the
- *        database default one
- * @return the database connection, or NULL on error
- */
-static struct TALER_MINTDB_Session *
-postgres_get_session (void *cls,
-                      int temporary)
-{
-  struct PostgresClosure *pc = cls;
-  PGconn *db_conn;
-  struct TALER_MINTDB_Session *session;
-
-  if (NULL != (session = pthread_getspecific (pc->db_conn_threadlocal)))
-    return session;
-  db_conn = PQconnectdb (pc->connection_cfg_str);
-  if (CONNECTION_OK !=
-      PQstatus (db_conn))
-  {
-    TALER_LOG_ERROR ("Database connection failed: %s\n",
-                     PQerrorMessage (db_conn));
-    GNUNET_break (0);
-    return NULL;
-  }
-  PQsetNoticeReceiver (db_conn,
-                       &pq_notice_receiver_cb,
-                       NULL);
-  PQsetNoticeProcessor (db_conn,
-                        &pq_notice_processor_cb,
-                        NULL);
-  if ( (GNUNET_YES == temporary) &&
-       (GNUNET_SYSERR == set_temporary_schema(db_conn)) )
-  {
-    GNUNET_break (0);
-    return NULL;
-  }
-  if (GNUNET_OK !=
-      postgres_prepare (db_conn))
-  {
-    GNUNET_break (0);
-    return NULL;
-  }
-  session = GNUNET_new (struct TALER_MINTDB_Session);
-  session->conn = db_conn;
-  if (0 != pthread_setspecific (pc->db_conn_threadlocal,
-                                session))
-  {
-    GNUNET_break (0);
-    PQfinish (db_conn);
-    GNUNET_free (session);
-    return NULL;
-  }
-  return session;
-}
-
-
-/**
- * Start a transaction.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session the database connection
- * @return #GNUNET_OK on success
- */
-static int
-postgres_start (void *cls,
-                struct TALER_MINTDB_Session *session)
-{
-  PGresult *result;
-
-  result = PQexec (session->conn,
-                   "BEGIN");
-  if (PGRES_COMMAND_OK !=
-      PQresultStatus (result))
-  {
-    TALER_LOG_ERROR ("Failed to start transaction: %s\n",
-               PQresultErrorMessage (result));
-    GNUNET_break (0);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-
-  PQclear (result);
-  return GNUNET_OK;
-}
-
-
-/**
- * Roll back the current transaction of a database connection.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session the database connection
- * @return #GNUNET_OK on success
- */
-static void
-postgres_rollback (void *cls,
-                   struct TALER_MINTDB_Session *session)
-{
-  PGresult *result;
-
-  result = PQexec (session->conn,
-                   "ROLLBACK");
-  GNUNET_break (PGRES_COMMAND_OK ==
-                PQresultStatus (result));
-  PQclear (result);
-}
-
-
-/**
- * Commit the current transaction of a database connection.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session the database connection
- * @return #GNUNET_OK on success
- */
-static int
-postgres_commit (void *cls,
-                 struct TALER_MINTDB_Session *session)
-{
-  PGresult *result;
-
-  result = PQexec (session->conn,
-                   "COMMIT");
-  if (PGRES_COMMAND_OK !=
-      PQresultStatus (result))
-  {
-    const char *sqlstate;
-
-    sqlstate = PQresultErrorField (result,
-                                   PG_DIAG_SQLSTATE);
-    if (NULL == sqlstate)
-    {
-      /* very unexpected... */
-      GNUNET_break (0);
-      PQclear (result);
-      return GNUNET_SYSERR;
-    }
-    /* 40P01: deadlock, 40001: serialization failure */
-    if ( (0 == strcmp (sqlstate,
-                       "40P01")) ||
-         (0 == strcmp (sqlstate,
-                       "40001")) )
-    {
-      /* These two can be retried and have a fair chance of working
-         the next time */
-      PQclear (result);
-      return GNUNET_NO;
-    }
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
-                "Database commit failure: %s\n",
-                sqlstate);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  PQclear (result);
-  return GNUNET_OK;
-}
-
-
-/**
- * Insert a denomination key's public information into the database for
- * reference by auditors and other consistency checks.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param session connection to use
- * @param denom_pub the public key used for signing coins of this denomination
- * @param issue issuing information with value, fees and other info about the coin
- * @return #GNUNET_OK on success; #GNUNET_SYSERR on failure
- */
-static int
-postgres_insert_denomination_info (void *cls,
-                                   struct TALER_MINTDB_Session *session,
-                                   const struct TALER_DenominationPublicKey *denom_pub,
-                                   const struct TALER_MINTDB_DenominationKeyInformationP *issue)
-{
-  PGresult *result;
-  int ret;
-
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_rsa_public_key (denom_pub->rsa_public_key),
-    GNUNET_PQ_query_param_auto_from_type (&issue->properties.master),
-    GNUNET_PQ_query_param_auto_from_type (&issue->signature),
-    GNUNET_PQ_query_param_absolute_time_nbo (&issue->properties.start),
-    GNUNET_PQ_query_param_absolute_time_nbo (&issue->properties.expire_withdraw),
-    GNUNET_PQ_query_param_absolute_time_nbo (&issue->properties.expire_spend),
-    GNUNET_PQ_query_param_absolute_time_nbo (&issue->properties.expire_legal),
-    TALER_PQ_query_param_amount_nbo (&issue->properties.value),
-    TALER_PQ_query_param_amount_nbo (&issue->properties.fee_withdraw),
-    TALER_PQ_query_param_amount_nbo (&issue->properties.fee_deposit),
-    TALER_PQ_query_param_amount_nbo (&issue->properties.fee_refresh),
-    GNUNET_PQ_query_param_end
-  };
-  /* check fees match coin currency */
-  GNUNET_assert (GNUNET_YES ==
-                 TALER_amount_cmp_currency_nbo (&issue->properties.value,
-                                                &issue->properties.fee_withdraw));
-  GNUNET_assert (GNUNET_YES ==
-                 TALER_amount_cmp_currency_nbo (&issue->properties.value,
-                                                &issue->properties.fee_deposit));
-  GNUNET_assert (GNUNET_YES ==
-                 TALER_amount_cmp_currency_nbo (&issue->properties.value,
-                                                &issue->properties.fee_refresh));
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "denomination_insert",
-                                   params);
-  if (PGRES_COMMAND_OK != PQresultStatus (result))
-  {
-    ret = GNUNET_SYSERR;
-    BREAK_DB_ERR (result);
-  }
-  else
-  {
-    ret = GNUNET_OK;
-  }
-  PQclear (result);
-  return ret;
-}
-
-
-/**
- * Fetch information about a denomination key.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param session connection to use
- * @param denom_pub the public key used for signing coins of this denomination
- * @param[out] issue set to issue information with value, fees and other info about the coin, can be NULL
- * @return #GNUNET_OK on success; #GNUNET_NO if no record was found, #GNUNET_SYSERR on failure
- */
-static int
-postgres_get_denomination_info (void *cls,
-                                struct TALER_MINTDB_Session *session,
-                                const struct TALER_DenominationPublicKey *denom_pub,
-                                struct TALER_MINTDB_DenominationKeyInformationP *issue)
-{
-  PGresult *result;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_rsa_public_key (denom_pub->rsa_public_key),
-    GNUNET_PQ_query_param_end
-  };
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "denomination_get",
-                                   params);
-  if (PGRES_TUPLES_OK != PQresultStatus (result))
-  {
-    QUERY_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  if (0 == PQntuples (result))
-  {
-    PQclear (result);
-    return GNUNET_NO;
-  }
-  if (1 != PQntuples (result))
-  {
-    GNUNET_break (0);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  if (NULL == issue)
-  {
-    PQclear (result);
-    return GNUNET_OK;
-  }
-  {
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      GNUNET_PQ_result_spec_auto_from_type ("master_pub",
-                                           &issue->properties.master),
-      GNUNET_PQ_result_spec_auto_from_type ("master_sig",
-                                           &issue->signature),
-      GNUNET_PQ_result_spec_absolute_time_nbo ("valid_from",
-                                              &issue->properties.start),
-      GNUNET_PQ_result_spec_absolute_time_nbo ("expire_withdraw",
-                                              &issue->properties.expire_withdraw),
-      GNUNET_PQ_result_spec_absolute_time_nbo ("expire_spend",
-                                              &issue->properties.expire_spend),
-      GNUNET_PQ_result_spec_absolute_time_nbo ("expire_legal",
-                                              &issue->properties.expire_legal),
-      TALER_PQ_result_spec_amount_nbo ("coin",
-                                       &issue->properties.value),
-      TALER_PQ_result_spec_amount_nbo ("fee_withdraw",
-                                       &issue->properties.fee_withdraw),
-      TALER_PQ_result_spec_amount_nbo ("fee_deposit",
-                                       &issue->properties.fee_deposit),
-      TALER_PQ_result_spec_amount_nbo ("fee_refresh",
-                                       &issue->properties.fee_refresh),
-      GNUNET_PQ_result_spec_end
-    };
-
-    EXITIF (GNUNET_OK !=
-            GNUNET_PQ_extract_result (result,
-                                     rs,
-                                     0));
-  }
-  PQclear (result);
-  return GNUNET_OK;
-
- EXITIF_exit:
-  PQclear (result);
-  return GNUNET_SYSERR;
-}
-
-
-/**
- * Get the summary of a reserve.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session the database connection handle
- * @param[in,out] reserve the reserve data.  The public key of the reserve should be
- *          set in this structure; it is used to query the database.  The balance
- *          and expiration are then filled accordingly.
- * @return #GNUNET_OK upon success; #GNUNET_SYSERR upon failure
- */
-static int
-postgres_reserve_get (void *cls,
-                      struct TALER_MINTDB_Session *session,
-                      struct TALER_MINTDB_Reserve *reserve)
-{
-  PGresult *result;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type(&reserve->pub),
-    GNUNET_PQ_query_param_end
-  };
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "reserve_get",
-                                   params);
-  if (PGRES_TUPLES_OK != PQresultStatus (result))
-  {
-    QUERY_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  if (0 == PQntuples (result))
-  {
-    PQclear (result);
-    return GNUNET_NO;
-  }
-  {
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      TALER_PQ_result_spec_amount("current_balance", &reserve->balance),
-      GNUNET_PQ_result_spec_absolute_time("expiration_date", &reserve->expiry),
-      GNUNET_PQ_result_spec_end
-    };
-
-    EXITIF (GNUNET_OK !=
-            GNUNET_PQ_extract_result (result,
-                                     rs,
-                                     0));
-  }
-  PQclear (result);
-  return GNUNET_OK;
-
- EXITIF_exit:
-  PQclear (result);
-  return GNUNET_SYSERR;
-}
-
-
-/**
- * Updates a reserve with the data from the given reserve structure.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session the database connection
- * @param reserve the reserve structure whose data will be used to update the
- *          corresponding record in the database.
- * @return #GNUNET_OK upon successful update; #GNUNET_SYSERR upon any error
- */
-static int
-reserves_update (void *cls,
-                 struct TALER_MINTDB_Session *session,
-                 const struct TALER_MINTDB_Reserve *reserve)
-{
-  PGresult *result;
-  int ret;
-
-  if (NULL == reserve)
-    return GNUNET_SYSERR;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_absolute_time (&reserve->expiry),
-    TALER_PQ_query_param_amount (&reserve->balance),
-    GNUNET_PQ_query_param_auto_from_type (&reserve->pub),
-    GNUNET_PQ_query_param_end
-  };
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "reserve_update",
-                                   params);
-  if (PGRES_COMMAND_OK != PQresultStatus(result))
-  {
-    QUERY_ERR (result);
-    ret = GNUNET_SYSERR;
-  }
-  else
-  {
-    ret = GNUNET_OK;
-  }
-  PQclear (result);
-  return ret;
-}
-
-
-/**
- * Insert an incoming transaction into reserves.  New reserves are also created
- * through this function.  Note that this API call starts (and stops) its
- * own transaction scope (so the application must not do so).
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session the database connection handle
- * @param reserve_pub public key of the reserve
- * @param balance the amount that has to be added to the reserve
- * @param execution_time when was the amount added
- * @param details bank transaction details justifying the increment,
- *        must be unique for each incoming transaction
- * @return #GNUNET_OK upon success; #GNUNET_NO if the given
- *         @a details are already known for this @a reserve_pub,
- *         #GNUNET_SYSERR upon failures (DB error, incompatible currency)
- */
-static int
-postgres_reserves_in_insert (void *cls,
-                             struct TALER_MINTDB_Session *session,
-                             const struct TALER_ReservePublicKeyP *reserve_pub,
-                             const struct TALER_Amount *balance,
-                             struct GNUNET_TIME_Absolute execution_time,
-                             const json_t *details)
-{
-  PGresult *result;
-  int reserve_exists;
-  struct TALER_MINTDB_Reserve reserve;
-  struct GNUNET_TIME_Absolute expiry;
-
-  if (GNUNET_OK != postgres_start (cls,
-                                   session))
-  {
-    GNUNET_break (0);
-    return GNUNET_SYSERR;
-  }
-  reserve.pub = *reserve_pub;
-  reserve_exists = postgres_reserve_get (cls,
-                                         session,
-                                         &reserve);
-  if (GNUNET_SYSERR == reserve_exists)
-  {
-    GNUNET_break (0);
-    goto rollback;
-  }
-  expiry = GNUNET_TIME_absolute_add (execution_time,
-                                     TALER_IDLE_RESERVE_EXPIRATION_TIME);
-  if (GNUNET_NO == reserve_exists)
-  {
-    /* New reserve, create balance for the first time; we do this
-       before adding the actual transaction to "reserves_in", as
-       for a new reserve it can't be a duplicate 'add' operation,
-       and as the 'add' operation may need the reserve entry
-       as a foreign key. */
-    struct GNUNET_PQ_QueryParam params[] = {
-      GNUNET_PQ_query_param_auto_from_type (reserve_pub),
-      TALER_PQ_query_param_amount (balance),
-      GNUNET_PQ_query_param_absolute_time (&expiry),
-      GNUNET_PQ_query_param_end
-    };
-
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "Reserve does not exist; creating a new one\n");
-    result = GNUNET_PQ_exec_prepared (session->conn,
-                                     "reserve_create",
-                                     params);
-    if (PGRES_COMMAND_OK != PQresultStatus(result))
-    {
-      QUERY_ERR (result);
-      PQclear (result);
-      goto rollback;
-    }
-    PQclear (result);
-  }
-  /* Create new incoming transaction, SQL "primary key" logic
-     is used to guard against duplicates.  If a duplicate is
-     detected, we rollback (which really shouldn't undo
-     anything) and return #GNUNET_NO to indicate that this failure
-     is kind-of harmless (already executed). */
-  {
-    struct GNUNET_PQ_QueryParam params[] = {
-      GNUNET_PQ_query_param_auto_from_type (&reserve.pub),
-      TALER_PQ_query_param_amount (balance),
-      TALER_PQ_query_param_json (details),
-      GNUNET_PQ_query_param_absolute_time (&execution_time),
-      GNUNET_PQ_query_param_end
-    };
-
-    result = GNUNET_PQ_exec_prepared (session->conn,
-                                     "reserves_in_add_transaction",
-                                     params);
-  }
-  if (PGRES_COMMAND_OK != PQresultStatus(result))
-  {
-    const char *efield;
-
-    efield = PQresultErrorField (result,
-				 PG_DIAG_SQLSTATE);
-    if ( (PGRES_FATAL_ERROR == PQresultStatus(result)) &&
-	 (NULL != strstr ("23505", /* unique violation */
-			  efield)) )
-    {
-      /* This means we had the same reserve/justification/details
-	 before */
-      PQclear (result);
-      postgres_rollback (cls,
-			 session);
-      return GNUNET_NO;
-    }
-    QUERY_ERR (result);
-    PQclear (result);
-    goto rollback;
-  }
-  PQclear (result);
-
-  if (GNUNET_YES == reserve_exists)
-  {
-    /* If the reserve already existed, we need to still update the
-       balance; we do this after checking for duplication, as
-       otherwise we might have to actually pay the cost to roll this
-       back for duplicate transactions; like this, we should virtually
-       never actually have to rollback anything. */
-    struct TALER_MINTDB_Reserve updated_reserve;
-
-    updated_reserve.pub = reserve.pub;
-    if (GNUNET_OK !=
-        TALER_amount_add (&updated_reserve.balance,
-                          &reserve.balance,
-                          balance))
-    {
-      /* currency overflow or incompatible currency */
-      GNUNET_log (GNUNET_ERROR_TYPE_WARNING,
-                  "Attempt to deposit incompatible amount into reserve\n");
-      goto rollback;
-    }
-    updated_reserve.expiry = GNUNET_TIME_absolute_max (expiry,
-                                                       reserve.expiry);
-    if (GNUNET_OK != reserves_update (cls,
-                                      session,
-                                      &updated_reserve))
-      goto rollback;
-  }
-  if (GNUNET_OK != postgres_commit (cls,
-                                    session))
-    return GNUNET_SYSERR;
-  return GNUNET_OK;
-
- rollback:
-  postgres_rollback (cls,
-                     session);
-  return GNUNET_SYSERR;
-}
-
-
-/**
- * Locate the response for a /reserve/withdraw request under the
- * key of the hash of the blinded message.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database connection to use
- * @param h_blind hash of the blinded coin to be signed (will match
- *                `h_coin_envelope` in the @a collectable to be returned)
- * @param collectable corresponding collectable coin (blind signature)
- *                    if a coin is found
- * @return #GNUNET_SYSERR on internal error
- *         #GNUNET_NO if the collectable was not found
- *         #GNUNET_YES on success
- */
-static int
-postgres_get_withdraw_info (void *cls,
-                            struct TALER_MINTDB_Session *session,
-                            const struct GNUNET_HashCode *h_blind,
-                            struct TALER_MINTDB_CollectableBlindcoin *collectable)
-{
-  PGresult *result;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (h_blind),
-    GNUNET_PQ_query_param_end
-  };
-  int ret;
-
-  ret = GNUNET_SYSERR;
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "get_withdraw_info",
-                                   params);
-
-  if (PGRES_TUPLES_OK != PQresultStatus (result))
-  {
-    QUERY_ERR (result);
-    goto cleanup;
-  }
-  if (0 == PQntuples (result))
-  {
-    ret = GNUNET_NO;
-    goto cleanup;
-  }
-  {
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      GNUNET_PQ_result_spec_rsa_public_key ("denom_pub",
-                                           &collectable->denom_pub.rsa_public_key),
-      GNUNET_PQ_result_spec_rsa_signature ("denom_sig",
-                                          &collectable->sig.rsa_signature),
-      GNUNET_PQ_result_spec_auto_from_type ("reserve_sig",
-                                           &collectable->reserve_sig),
-      GNUNET_PQ_result_spec_auto_from_type ("reserve_pub",
-                                           &collectable->reserve_pub),
-      TALER_PQ_result_spec_amount ("amount_with_fee",
-                                   &collectable->amount_with_fee),
-      TALER_PQ_result_spec_amount ("withdraw_fee",
-                                   &collectable->withdraw_fee),
-      GNUNET_PQ_result_spec_end
-    };
-
-    if (GNUNET_OK !=
-        GNUNET_PQ_extract_result (result, rs, 0))
-    {
-      GNUNET_break (0);
-      goto cleanup;
-    }
-  }
-  collectable->h_coin_envelope = *h_blind;
-  ret = GNUNET_YES;
-
- cleanup:
-  PQclear (result);
-  return ret;
-}
-
-
-/**
- * Store collectable bit coin under the corresponding
- * hash of the blinded message.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database connection to use
- * @param collectable corresponding collectable coin (blind signature)
- *                    if a coin is found
- * @return #GNUNET_SYSERR on internal error
- *         #GNUNET_NO if the collectable was not found
- *         #GNUNET_YES on success
- */
-static int
-postgres_insert_withdraw_info (void *cls,
-                               struct TALER_MINTDB_Session *session,
-                               const struct TALER_MINTDB_CollectableBlindcoin *collectable)
-{
-  PGresult *result;
-  struct TALER_MINTDB_Reserve reserve;
-  int ret = GNUNET_SYSERR;
-  struct GNUNET_TIME_Absolute now;
-  struct GNUNET_TIME_Absolute expiry;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (&collectable->h_coin_envelope),
-    GNUNET_PQ_query_param_rsa_public_key (collectable->denom_pub.rsa_public_key),
-    GNUNET_PQ_query_param_rsa_signature (collectable->sig.rsa_signature),
-    GNUNET_PQ_query_param_auto_from_type (&collectable->reserve_pub),
-    GNUNET_PQ_query_param_auto_from_type (&collectable->reserve_sig),
-    GNUNET_PQ_query_param_absolute_time (&now),
-    TALER_PQ_query_param_amount (&collectable->amount_with_fee),
-    TALER_PQ_query_param_amount (&collectable->withdraw_fee),
-    GNUNET_PQ_query_param_end
-  };
-
-  now = GNUNET_TIME_absolute_get ();
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "insert_withdraw_info",
-                                   params);
-  if (PGRES_COMMAND_OK != PQresultStatus (result))
-  {
-    QUERY_ERR (result);
-    goto cleanup;
-  }
-  reserve.pub = collectable->reserve_pub;
-  if (GNUNET_OK != postgres_reserve_get (cls,
-                                         session,
-                                         &reserve))
-  {
-    /* Should have been checked before we got here... */
-    GNUNET_break (0);
-    goto cleanup;
-  }
-  if (GNUNET_SYSERR ==
-      TALER_amount_subtract (&reserve.balance,
-                             &reserve.balance,
-                             &collectable->amount_with_fee))
-  {
-    /* Should have been checked before we got here... */
-    GNUNET_break (0);
-    goto cleanup;
-  }
-  expiry = GNUNET_TIME_absolute_add (now,
-                                     TALER_IDLE_RESERVE_EXPIRATION_TIME);
-  reserve.expiry = GNUNET_TIME_absolute_max (expiry,
-                                             reserve.expiry);
-  if (GNUNET_OK != reserves_update (cls,
-                                    session,
-                                    &reserve))
-  {
-    GNUNET_break (0);
-    goto cleanup;
-  }
-  ret = GNUNET_OK;
- cleanup:
-  PQclear (result);
-  return ret;
-}
-
-
-/**
- * Get all of the transaction history associated with the specified
- * reserve.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session connection to use
- * @param reserve_pub public key of the reserve
- * @return known transaction history (NULL if reserve is unknown)
- */
-static struct TALER_MINTDB_ReserveHistory *
-postgres_get_reserve_history (void *cls,
-                              struct TALER_MINTDB_Session *session,
-                              const struct TALER_ReservePublicKeyP *reserve_pub)
-{
-  PGresult *result;
-  struct TALER_MINTDB_ReserveHistory *rh;
-  struct TALER_MINTDB_ReserveHistory *rh_tail;
-  int rows;
-  int ret;
-
-  rh = NULL;
-  rh_tail = NULL;
-  ret = GNUNET_SYSERR;
-  {
-    struct TALER_MINTDB_BankTransfer *bt;
-    struct GNUNET_PQ_QueryParam params[] = {
-      GNUNET_PQ_query_param_auto_from_type (reserve_pub),
-      GNUNET_PQ_query_param_end
-    };
-
-    result = GNUNET_PQ_exec_prepared (session->conn,
-                                     "reserves_in_get_transactions",
-                                     params);
-    if (PGRES_TUPLES_OK != PQresultStatus (result))
-    {
-      QUERY_ERR (result);
-      goto cleanup;
-    }
-    if (0 == (rows = PQntuples (result)))
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  "Asked to fetch history for an unknown reserve.\n");
-      goto cleanup;
-    }
-    while (0 < rows)
-    {
-      bt = GNUNET_new (struct TALER_MINTDB_BankTransfer);
-      {
-        struct GNUNET_PQ_ResultSpec rs[] = {
-          TALER_PQ_result_spec_amount ("balance",
-                                       &bt->amount),
-          GNUNET_PQ_result_spec_absolute_time ("execution_date",
-                                              &bt->execution_date),
-          TALER_PQ_result_spec_json ("details",
-                                     &bt->wire),
-          GNUNET_PQ_result_spec_end
-        };
-        if (GNUNET_YES !=
-            GNUNET_PQ_extract_result (result, rs, --rows))
-        {
-          GNUNET_break (0);
-          GNUNET_free (bt);
-          PQclear (result);
-          goto cleanup;
-        }
-      }
-      bt->reserve_pub = *reserve_pub;
-      if (NULL != rh_tail)
-      {
-        rh_tail->next = GNUNET_new (struct TALER_MINTDB_ReserveHistory);
-        rh_tail = rh_tail->next;
-      }
-      else
-      {
-        rh_tail = GNUNET_new (struct TALER_MINTDB_ReserveHistory);
-        rh = rh_tail;
-      }
-      rh_tail->type = TALER_MINTDB_RO_BANK_TO_MINT;
-      rh_tail->details.bank = bt;
-    }
-    PQclear (result);
-  }
-  {
-    struct GNUNET_PQ_QueryParam params[] = {
-      GNUNET_PQ_query_param_auto_from_type (reserve_pub),
-      GNUNET_PQ_query_param_end
-    };
-
-    GNUNET_assert (NULL != rh);
-    GNUNET_assert (NULL != rh_tail);
-    GNUNET_assert (NULL == rh_tail->next);
-    result = GNUNET_PQ_exec_prepared (session->conn,
-                                     "get_reserves_out",
-                                     params);
-    if (PGRES_TUPLES_OK != PQresultStatus (result))
-    {
-      QUERY_ERR (result);
-      PQclear (result);
-      goto cleanup;
-    }
-    rows = PQntuples (result);
-    while (0 < rows)
-    {
-      struct TALER_MINTDB_CollectableBlindcoin *cbc;
-
-      cbc = GNUNET_new (struct TALER_MINTDB_CollectableBlindcoin);
-      {
-        struct GNUNET_PQ_ResultSpec rs[] = {
-          GNUNET_PQ_result_spec_auto_from_type ("h_blind_ev",
-                                               &cbc->h_coin_envelope),
-          GNUNET_PQ_result_spec_rsa_public_key ("denom_pub",
-                                               &cbc->denom_pub.rsa_public_key),
-          GNUNET_PQ_result_spec_rsa_signature ("denom_sig",
-                                              &cbc->sig.rsa_signature),
-          GNUNET_PQ_result_spec_auto_from_type ("reserve_sig",
-                                               &cbc->reserve_sig),
-          TALER_PQ_result_spec_amount ("amount_with_fee",
-                                       &cbc->amount_with_fee),
-          TALER_PQ_result_spec_amount ("withdraw_fee",
-                                       &cbc->withdraw_fee),
-          GNUNET_PQ_result_spec_end
-        };
-        if (GNUNET_YES !=
-            GNUNET_PQ_extract_result (result, rs, --rows))
-        {
-          GNUNET_break (0);
-          GNUNET_free (cbc);
-          PQclear (result);
-          goto cleanup;
-        }
-        cbc->reserve_pub = *reserve_pub;
-      }
-      rh_tail->next = GNUNET_new (struct TALER_MINTDB_ReserveHistory);
-      rh_tail = rh_tail->next;
-      rh_tail->type = TALER_MINTDB_RO_WITHDRAW_COIN;
-      rh_tail->details.withdraw = cbc;
-    }
-    ret = GNUNET_OK;
-    PQclear (result);
-  }
- cleanup:
-  if (GNUNET_SYSERR == ret)
-  {
-    common_free_reserve_history (cls,
-                                 rh);
-    rh = NULL;
-  }
-  return rh;
-}
-
-
-/**
- * Check if we have the specified deposit already in the database.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database connection
- * @param deposit deposit to search for
- * @return #GNUNET_YES if we know this operation,
- *         #GNUNET_NO if this exact deposit is unknown to us
- *         #GNUNET_SYSERR on DB error
- */
-static int
-postgres_have_deposit (void *cls,
-                       struct TALER_MINTDB_Session *session,
-                       const struct TALER_MINTDB_Deposit *deposit)
-{
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (&deposit->coin.coin_pub),
-    GNUNET_PQ_query_param_uint64 (&deposit->transaction_id),
-    GNUNET_PQ_query_param_auto_from_type (&deposit->merchant_pub),
-    GNUNET_PQ_query_param_end
-  };
-  PGresult *result;
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "get_deposit",
-                                   params);
-  if (PGRES_TUPLES_OK !=
-      PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  if (0 == PQntuples (result))
-  {
-    PQclear (result);
-    return GNUNET_NO;
-  }
-
-  /* Now we check that the other information in @a deposit
-     also matches, and if not report inconsistencies. */
-  {
-    struct TALER_MINTDB_Deposit deposit2;
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      TALER_PQ_result_spec_amount ("amount_with_fee",
-                                   &deposit2.amount_with_fee),
-      GNUNET_PQ_result_spec_absolute_time ("timestamp",
-                                          &deposit2.timestamp),
-      GNUNET_PQ_result_spec_absolute_time ("refund_deadline",
-                                          &deposit2.refund_deadline),
-      GNUNET_PQ_result_spec_absolute_time ("wire_deadline",
-                                          &deposit2.wire_deadline),
-      GNUNET_PQ_result_spec_auto_from_type ("h_contract",
-                                           &deposit2.h_contract),
-      GNUNET_PQ_result_spec_auto_from_type ("h_wire",
-                                           &deposit2.h_wire),
-      GNUNET_PQ_result_spec_end
-    };
-    if (GNUNET_OK !=
-        GNUNET_PQ_extract_result (result, rs, 0))
-    {
-      GNUNET_break (0);
-      PQclear (result);
-      return GNUNET_SYSERR;
-    }
-    if ( (0 != TALER_amount_cmp (&deposit->amount_with_fee,
-                                 &deposit2.amount_with_fee)) ||
-         (deposit->timestamp.abs_value_us !=
-          deposit2.timestamp.abs_value_us) ||
-         (deposit->refund_deadline.abs_value_us !=
-          deposit2.refund_deadline.abs_value_us) ||
-         (0 != memcmp (&deposit->h_contract,
-                       &deposit2.h_contract,
-                       sizeof (struct GNUNET_HashCode))) ||
-         (0 != memcmp (&deposit->h_wire,
-                       &deposit2.h_wire,
-                       sizeof (struct GNUNET_HashCode))) )
-    {
-      /* Inconsistencies detected! Does not match!  (We might want to
-         expand the API with a 'get_deposit' function to return the
-         original transaction details to be used for an error message
-         in the future!) #3838 */
-      PQclear (result);
-      return GNUNET_NO;
-    }
-  }
-  PQclear (result);
-  return GNUNET_YES;
-}
-
-
-/**
- * Mark a deposit as tiny, thereby declaring that it cannot be
- * executed by itself and should no longer be returned by
- * @e iterate_ready_deposits()
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param session connection to the database
- * @param deposit_rowid identifies the deposit row to modify
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
- */
-static int
-postgres_mark_deposit_tiny (void *cls,
-                            struct TALER_MINTDB_Session *session,
-                            unsigned long long rowid)
-{
-  uint64_t serial_id = rowid;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_uint64 (&serial_id),
-    GNUNET_PQ_query_param_end
-  };
-  PGresult *result;
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "mark_deposit_tiny",
-                                   params);
-  if (PGRES_COMMAND_OK !=
-      PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  PQclear (result);
-  return GNUNET_OK;
-}
-
-
-/**
- * Mark a deposit as done, thereby declaring that it cannot be
- * executed at all anymore, and should no longer be returned by
- * @e iterate_ready_deposits() or @e iterate_matching_deposits().
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param session connection to the database
- * @param deposit_rowid identifies the deposit row to modify
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
- */
-static int
-postgres_mark_deposit_done (void *cls,
-                            struct TALER_MINTDB_Session *session,
-                            unsigned long long rowid)
-{
-  uint64_t serial_id = rowid;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_uint64 (&serial_id),
-    GNUNET_PQ_query_param_end
-  };
-  PGresult *result;
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "mark_deposit_done",
-                                   params);
-  if (PGRES_COMMAND_OK !=
-      PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  PQclear (result);
-  return GNUNET_OK;
-}
-
-
-/**
- * Obtain information about deposits that are ready to be executed.
- * Such deposits must not be marked as "tiny" or "done", and the
- * execution time must be in the past.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param session connection to the database
- * @param deposit_cb function to call for ONE such deposit
- * @param deposit_cb_cls closure for @a deposit_cb
- * @return number of rows processed, 0 if none exist,
- *         #GNUNET_SYSERR on error
- */
-static int
-postgres_get_ready_deposit (void *cls,
-                            struct TALER_MINTDB_Session *session,
-                            TALER_MINTDB_DepositIterator deposit_cb,
-                            void *deposit_cb_cls)
-{
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_end
-  };
-  PGresult *result;
-  unsigned int n;
-  int ret;
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "deposits_get_ready",
-                                   params);
-  if (PGRES_TUPLES_OK !=
-      PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  if (0 == (n = PQntuples (result)))
-  {
-    PQclear (result);
-    return 0;
-  }
-  GNUNET_break (1 == n);
-  {
-    struct TALER_Amount amount_with_fee;
-    struct TALER_Amount deposit_fee;
-    struct GNUNET_TIME_Absolute wire_deadline;
-    struct GNUNET_HashCode h_contract;
-    struct TALER_MerchantPublicKeyP merchant_pub;
-    struct TALER_CoinSpendPublicKeyP coin_pub;
-    uint64_t transaction_id;
-    uint64_t serial_id;
-    json_t *wire;
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      GNUNET_PQ_result_spec_uint64 ("serial_id",
-                                   &serial_id),
-      GNUNET_PQ_result_spec_uint64 ("transaction_id",
-                                   &transaction_id),
-      TALER_PQ_result_spec_amount ("amount_with_fee",
-                                   &amount_with_fee),
-      TALER_PQ_result_spec_amount ("deposit_fee",
-                                   &deposit_fee),
-      GNUNET_PQ_result_spec_absolute_time ("wire_deadline",
-                                          &wire_deadline),
-      GNUNET_PQ_result_spec_auto_from_type ("h_contract",
-                                           &h_contract),
-      GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
-                                           &merchant_pub),
-      GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
-                                           &coin_pub),
-      TALER_PQ_result_spec_json ("wire",
-                                 &wire),
-      GNUNET_PQ_result_spec_end
-    };
-    if (GNUNET_OK !=
-        GNUNET_PQ_extract_result (result, rs, 0))
-    {
-      GNUNET_break (0);
-      PQclear (result);
-      return GNUNET_SYSERR;
-    }
-    ret = deposit_cb (deposit_cb_cls,
-                      serial_id,
-                      &merchant_pub,
-                      &coin_pub,
-                      &amount_with_fee,
-                      &deposit_fee,
-                      transaction_id,
-                      &h_contract,
-                      wire_deadline,
-                      wire);
-    GNUNET_PQ_cleanup_result (rs);
-    PQclear (result);
-  }
-  return (GNUNET_OK == ret) ? 1 : 0;
-}
-
-
-/**
- * Obtain information about other pending deposits for the same
- * destination.  Those deposits must not already be "done".
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param session connection to the database
- * @param h_wire destination of the wire transfer
- * @param merchant_pub public key of the merchant
- * @param deposit_cb function to call for each deposit
- * @param deposit_cb_cls closure for @a deposit_cb
- * @param limit maximum number of matching deposits to return
- * @return number of rows processed, 0 if none exist,
- *         #GNUNET_SYSERR on error
- */
-static int
-postgres_iterate_matching_deposits (void *cls,
-                                    struct TALER_MINTDB_Session *session,
-                                    const struct GNUNET_HashCode *h_wire,
-                                    const struct TALER_MerchantPublicKeyP *merchant_pub,
-                                    TALER_MINTDB_DepositIterator deposit_cb,
-                                    void *deposit_cb_cls,
-                                    uint32_t limit)
-{
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (merchant_pub),
-    GNUNET_PQ_query_param_auto_from_type (h_wire),
-    GNUNET_PQ_query_param_uint32 (&limit),
-    GNUNET_PQ_query_param_end
-  };
-  PGresult *result;
-  unsigned int i;
-  unsigned int n;
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "deposits_iterate_matching",
-                                   params);
-  if (PGRES_TUPLES_OK !=
-      PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  if (0 == (n = PQntuples (result)))
-  {
-    PQclear (result);
-    return 0;
-  }
-  if (n > limit)
-    n = limit;
-  for (i=0;i<n;i++)
-  {
-    struct TALER_Amount amount_with_fee;
-    struct TALER_Amount deposit_fee;
-    struct GNUNET_TIME_Absolute wire_deadline;
-    struct GNUNET_HashCode h_contract;
-    struct TALER_MerchantPublicKeyP merchant_pub;
-    struct TALER_CoinSpendPublicKeyP coin_pub;
-    uint64_t transaction_id;
-    uint64_t serial_id;
-    int ret;
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      GNUNET_PQ_result_spec_uint64 ("serial_id",
-                                   &serial_id),
-      GNUNET_PQ_result_spec_uint64 ("transaction_id",
-                                   &transaction_id),
-      TALER_PQ_result_spec_amount ("amount_with_fee",
-                                   &amount_with_fee),
-      TALER_PQ_result_spec_amount ("deposit_fee",
-                                   &deposit_fee),
-      GNUNET_PQ_result_spec_absolute_time ("wire_deadline",
-                                          &wire_deadline),
-      GNUNET_PQ_result_spec_auto_from_type ("h_contract",
-                                           &h_contract),
-      GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
-                                           &merchant_pub),
-      GNUNET_PQ_result_spec_auto_from_type ("coin_pub",
-                                           &coin_pub),
-      GNUNET_PQ_result_spec_end
-    };
-    if (GNUNET_OK !=
-        GNUNET_PQ_extract_result (result, rs, i))
-    {
-      GNUNET_break (0);
-      PQclear (result);
-      return GNUNET_SYSERR;
-    }
-    ret = deposit_cb (deposit_cb_cls,
-                      serial_id,
-                      &merchant_pub,
-                      &coin_pub,
-                      &amount_with_fee,
-                      &deposit_fee,
-                      transaction_id,
-                      &h_contract,
-                      wire_deadline,
-                      NULL);
-    GNUNET_PQ_cleanup_result (rs);
-    PQclear (result);
-    if (GNUNET_OK != ret)
-      break;
-  }
-  return i;
-}
-
-
-/**
- * Insert information about deposited coin into the database.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session connection to the database
- * @param deposit deposit information to store
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on error
- */
-static int
-postgres_insert_deposit (void *cls,
-                         struct TALER_MINTDB_Session *session,
-                         const struct TALER_MINTDB_Deposit *deposit)
-{
-  PGresult *result;
-  int ret;
-
-  {
-    struct GNUNET_PQ_QueryParam params[] = {
-      GNUNET_PQ_query_param_auto_from_type (&deposit->coin.coin_pub),
-      GNUNET_PQ_query_param_rsa_public_key (deposit->coin.denom_pub.rsa_public_key),
-      GNUNET_PQ_query_param_rsa_signature (deposit->coin.denom_sig.rsa_signature),
-      GNUNET_PQ_query_param_uint64 (&deposit->transaction_id),
-      TALER_PQ_query_param_amount (&deposit->amount_with_fee),
-      TALER_PQ_query_param_amount (&deposit->deposit_fee),
-      GNUNET_PQ_query_param_absolute_time (&deposit->timestamp),
-      GNUNET_PQ_query_param_absolute_time (&deposit->refund_deadline),
-      GNUNET_PQ_query_param_absolute_time (&deposit->wire_deadline),
-      GNUNET_PQ_query_param_auto_from_type (&deposit->merchant_pub),
-      GNUNET_PQ_query_param_auto_from_type (&deposit->h_contract),
-      GNUNET_PQ_query_param_auto_from_type (&deposit->h_wire),
-      GNUNET_PQ_query_param_auto_from_type (&deposit->csig),
-      TALER_PQ_query_param_json (deposit->wire),
-      GNUNET_PQ_query_param_end
-    };
-    result = GNUNET_PQ_exec_prepared (session->conn,
-                                     "insert_deposit",
-                                     params);
-  }
-  if (PGRES_COMMAND_OK != PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    ret = GNUNET_SYSERR;
-  }
-  else
-  {
-    ret = GNUNET_OK;
-  }
-  PQclear (result);
-  return ret;
-}
-
-
-/**
- * Lookup refresh session data under the given @a session_hash.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database handle to use
- * @param session_hash hash over the melt to use to locate the session
- * @param[out] refresh_session where to store the result, can be NULL
- *             to just check if the session exists
- * @return #GNUNET_YES on success,
- *         #GNUNET_NO if not found,
- *         #GNUNET_SYSERR on DB failure
- */
-static int
-postgres_get_refresh_session (void *cls,
-                              struct TALER_MINTDB_Session *session,
-                              const struct GNUNET_HashCode *session_hash,
-                              struct TALER_MINTDB_RefreshSession *refresh_session)
-{
-  PGresult *result;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (session_hash),
-    GNUNET_PQ_query_param_end
-  };
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "get_refresh_session",
-                                   params);
-  if (PGRES_TUPLES_OK != PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  if (0 == PQntuples (result))
-  {
-    PQclear (result);
-    return GNUNET_NO;
-  }
-  GNUNET_assert (1 == PQntuples (result));
-  if (NULL == refresh_session)
-  {
-    /* We're done if the caller is only interested in whether the
-     * session exists or not */
-    PQclear (result);
-    return GNUNET_YES;
-  }
-  memset (refresh_session,
-          0,
-          sizeof (struct TALER_MINTDB_RefreshSession));
-  {
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      GNUNET_PQ_result_spec_uint16 ("num_oldcoins",
-                                   &refresh_session->num_oldcoins),
-      GNUNET_PQ_result_spec_uint16 ("num_newcoins",
-                                   &refresh_session->num_newcoins),
-      GNUNET_PQ_result_spec_uint16 ("noreveal_index",
-                                   &refresh_session->noreveal_index),
-      GNUNET_PQ_result_spec_end
-    };
-    if (GNUNET_OK !=
-        GNUNET_PQ_extract_result (result, rs, 0))
-    {
-      GNUNET_break (0);
-      PQclear (result);
-      return GNUNET_SYSERR;
-    }
-  }
-  PQclear (result);
-  return GNUNET_YES;
-}
-
-
-/**
- * Store new refresh session data under the given @a session_hash.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database handle to use
- * @param session_hash hash over the melt to use to locate the session
- * @param refresh_session session data to store
- * @return #GNUNET_YES on success,
- *         #GNUNET_SYSERR on DB failure
- */
-static int
-postgres_create_refresh_session (void *cls,
-                                 struct TALER_MINTDB_Session *session,
-                                 const struct GNUNET_HashCode *session_hash,
-                                 const struct TALER_MINTDB_RefreshSession *refresh_session)
-{
-  PGresult *result;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (session_hash),
-    GNUNET_PQ_query_param_uint16 (&refresh_session->num_oldcoins),
-    GNUNET_PQ_query_param_uint16 (&refresh_session->num_newcoins),
-    GNUNET_PQ_query_param_uint16 (&refresh_session->noreveal_index),
-    GNUNET_PQ_query_param_end
-  };
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "insert_refresh_session",
-                                   params);
-  if (PGRES_COMMAND_OK != PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  PQclear (result);
-  return GNUNET_OK;
-}
-
-
-/**
- * Insert a coin we know of into the DB.  The coin can then be referenced by
- * tables for deposits, lock and refresh functionality.
- *
- * @param cls plugin closure
- * @param session the shared database session
- * @param coin_info the public coin info
- * @return #GNUNET_SYSERR upon error; #GNUNET_OK upon success
- */
-static int
-insert_known_coin (void *cls,
-                   struct TALER_MINTDB_Session *session,
-                   const struct TALER_CoinPublicInfo *coin_info)
-{
-  PGresult *result;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (&coin_info->coin_pub),
-    GNUNET_PQ_query_param_rsa_public_key (coin_info->denom_pub.rsa_public_key),
-    GNUNET_PQ_query_param_rsa_signature (coin_info->denom_sig.rsa_signature),
-    GNUNET_PQ_query_param_end
-  };
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "insert_known_coin",
-                                   params);
-  if (PGRES_COMMAND_OK != PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  PQclear (result);
-  return GNUNET_OK;
-}
-
-
-/**
- * Retrieve the record for a known coin.
- *
- * @param cls the plugin closure
- * @param session the database session handle
- * @param coin_pub the public key of the coin to search for
- * @param coin_info place holder for the returned coin information object
- * @return #GNUNET_SYSERR upon error; #GNUNET_NO if no coin is found; #GNUNET_OK
- *           if upon succesfullying retrieving the record data info @a
- *           coin_info
- */
-static int
-get_known_coin (void *cls,
-                struct TALER_MINTDB_Session *session,
-                const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                struct TALER_CoinPublicInfo *coin_info)
-{
-  PGresult *result;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (coin_pub),
-    GNUNET_PQ_query_param_end
-  };
-  int nrows;
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "get_known_coin",
-                                   params);
-  if (PGRES_TUPLES_OK != PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  nrows = PQntuples (result);
-  if (0 == nrows)
-  {
-    PQclear (result);
-    return GNUNET_NO;
-  }
-  GNUNET_assert (1 == nrows);   /* due to primary key */
-  if (NULL == coin_info)
-    return GNUNET_YES;
-  {
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      GNUNET_PQ_result_spec_rsa_public_key ("denom_pub",
-                                           &coin_info->denom_pub.rsa_public_key),
-      GNUNET_PQ_result_spec_rsa_signature ("denom_sig",
-                                          &coin_info->denom_sig.rsa_signature),
-      GNUNET_PQ_result_spec_end
-    };
-
-    if (GNUNET_OK !=
-        GNUNET_PQ_extract_result (result, rs, 0))
-    {
-      PQclear (result);
-      GNUNET_break (0);
-      return GNUNET_SYSERR;
-    }
-  }
-  PQclear (result);
-  coin_info->coin_pub = *coin_pub;
-  return GNUNET_OK;
-}
-
-
-/**
- * Store the given /refresh/melt request in the database.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database connection
- * @param oldcoin_index index of the coin to store
- * @param melt melt operation details to store; includes
- *             the session hash of the melt
- * @return #GNUNET_OK on success
- *         #GNUNET_SYSERR on internal error
- */
-static int
-postgres_insert_refresh_melt (void *cls,
-                              struct TALER_MINTDB_Session *session,
-                              uint16_t oldcoin_index,
-                              const struct TALER_MINTDB_RefreshMelt *melt)
-{
-  PGresult *result;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (&melt->coin.coin_pub),
-    GNUNET_PQ_query_param_auto_from_type (&melt->session_hash),
-    GNUNET_PQ_query_param_uint16 (&oldcoin_index),
-    GNUNET_PQ_query_param_auto_from_type (&melt->coin_sig),
-    TALER_PQ_query_param_amount (&melt->amount_with_fee),
-    TALER_PQ_query_param_amount (&melt->melt_fee),
-    GNUNET_PQ_query_param_end
-  };
-  int ret;
-
-  /* check if the coin is already known */
-  ret = get_known_coin (cls,
-                        session,
-                        &melt->coin.coin_pub,
-                        NULL);
-  if (GNUNET_SYSERR == ret)
-  {
-    GNUNET_break (0);
-    return GNUNET_SYSERR;
-  }
-  if (GNUNET_NO == ret)         /* if not, insert it */
-  {
-    ret = insert_known_coin (cls,
-                             session,
-                             &melt->coin);
-    if (ret == GNUNET_SYSERR)
-    {
-      GNUNET_break (0);
-      return GNUNET_SYSERR;
-    }
-  }
-  /* insert the melt */
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "insert_refresh_melt",
-                                   params);
-  if (PGRES_COMMAND_OK != PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  PQclear (result);
-  return GNUNET_OK;
-}
-
-
-/**
- * Get information about melted coin details from the database.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database connection
- * @param session_hash  session hash of the melt operation
- * @param oldcoin_index index of the coin to retrieve
- * @param melt melt data to fill in, can be NULL
- * @return #GNUNET_OK on success
- *         #GNUNET_SYSERR on internal error
- */
-static int
-postgres_get_refresh_melt (void *cls,
-                           struct TALER_MINTDB_Session *session,
-                           const struct GNUNET_HashCode *session_hash,
-                           uint16_t oldcoin_index,
-                           struct TALER_MINTDB_RefreshMelt *melt)
-{
-  PGresult *result;
-  struct TALER_CoinPublicInfo coin;
-  struct TALER_CoinSpendSignatureP coin_sig;
-  struct TALER_Amount amount_with_fee;
-  struct TALER_Amount melt_fee;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (session_hash),
-    GNUNET_PQ_query_param_uint16 (&oldcoin_index),
-    GNUNET_PQ_query_param_end
-  };
-  int nrows;
-
-  /* check if the melt record exists and get it */
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "get_refresh_melt",
-                                   params);
-  if (PGRES_TUPLES_OK != PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  nrows = PQntuples (result);
-  if (0 == nrows)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "get_refresh_melt() returned 0 matching rows\n");
-    PQclear (result);
-    return GNUNET_NO;
-  }
-  GNUNET_assert (1 == nrows);    /* due to primary key constraint */
-  {
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      GNUNET_PQ_result_spec_auto_from_type ("coin_pub", &coin.coin_pub),
-      GNUNET_PQ_result_spec_auto_from_type ("coin_sig", &coin_sig),
-      TALER_PQ_result_spec_amount ("amount_with_fee", &amount_with_fee),
-      TALER_PQ_result_spec_amount ("melt_fee", &melt_fee),
-      GNUNET_PQ_result_spec_end
-    };
-    if (GNUNET_OK != GNUNET_PQ_extract_result (result, rs, 0))
-    {
-      GNUNET_break (0);
-      PQclear (result);
-      return GNUNET_SYSERR;
-    }
-    PQclear (result);
-  }
-  /* fetch the coin info and denomination info */
-  if (GNUNET_OK != get_known_coin (cls,
-                                   session,
-                                   &coin.coin_pub,
-                                   &coin))
-    return GNUNET_SYSERR;
-  if (NULL == melt)
-  {
-    GNUNET_CRYPTO_rsa_signature_free (coin.denom_sig.rsa_signature);
-    GNUNET_CRYPTO_rsa_public_key_free (coin.denom_pub.rsa_public_key);
-    return GNUNET_OK;
-  }
-  melt->coin = coin;
-  melt->coin_sig = coin_sig;
-  melt->session_hash = *session_hash;
-  melt->amount_with_fee = amount_with_fee;
-  melt->melt_fee = melt_fee;
-  return GNUNET_OK;
-}
-
-
-/**
- * Store in the database which coin(s) we want to create
- * in a given refresh operation.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database connection
- * @param session_hash hash to identify refresh session
- * @param num_newcoins number of coins to generate, size of the @a denom_pubs array
- * @param denom_pubs array denominations of the coins to create
- * @return #GNUNET_OK on success
- *         #GNUNET_SYSERR on internal error
- */
-static int
-postgres_insert_refresh_order (void *cls,
-                               struct TALER_MINTDB_Session *session,
-                               const struct GNUNET_HashCode *session_hash,
-                               uint16_t num_newcoins,
-                               const struct TALER_DenominationPublicKey *denom_pubs)
-{
-  unsigned int i;
-
-  for (i=0;i<(unsigned int) num_newcoins;i++)
-  {
-    uint16_t newcoin_off = (uint16_t) i;
-    PGresult *result;
-
-    {
-      struct GNUNET_PQ_QueryParam params[] = {
-        GNUNET_PQ_query_param_uint16 (&newcoin_off),
-        GNUNET_PQ_query_param_auto_from_type (session_hash),
-        GNUNET_PQ_query_param_rsa_public_key (denom_pubs[i].rsa_public_key),
-        GNUNET_PQ_query_param_end
-      };
-      result = GNUNET_PQ_exec_prepared (session->conn,
-                                       "insert_refresh_order",
-                                       params);
-    }
-    if (PGRES_COMMAND_OK != PQresultStatus (result))
-    {
-      BREAK_DB_ERR (result);
-      PQclear (result);
-      return GNUNET_SYSERR;
-    }
-    if (0 != strcmp ("1", PQcmdTuples (result)))
-    {
-      GNUNET_break (0);
-      return GNUNET_SYSERR;
-    }
-    PQclear (result);
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * We allocated some @a denom_pubs information, but now need
- * to abort. Free allocated memory.
- *
- * @param denom_pubs data to free (but not the array itself)
- * @param denom_pubs_len length of @a denom_pubs array
- */
-static void
-free_dpk_result (struct TALER_DenominationPublicKey *denom_pubs,
-                 unsigned int denom_pubs_len)
-{
-  unsigned int i;
-
-  for (i=0;i<denom_pubs_len;i++)
-  {
-    GNUNET_CRYPTO_rsa_public_key_free (denom_pubs[i].rsa_public_key);
-    denom_pubs[i].rsa_public_key = NULL;
-  }
-}
-
-
-/**
- * Lookup in the database the coins that we want to
- * create in the given refresh operation.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database connection
- * @param session_hash hash to identify refresh session
- * @param num_newcoins size of the array of the @a denom_pubs array
- * @param denom_pubs where to store the deomination keys
- * @return #GNUNET_OK on success
- *         #GNUNET_SYSERR on internal error
- */
-static int
-postgres_get_refresh_order (void *cls,
-                            struct TALER_MINTDB_Session *session,
-                            const struct GNUNET_HashCode *session_hash,
-                            uint16_t num_newcoins,
-                            struct TALER_DenominationPublicKey *denom_pubs)
-{
-  unsigned int i;
-
-  for (i=0;i<(unsigned int) num_newcoins;i++)
-  {
-    uint16_t newcoin_off = (uint16_t) i;
-    PGresult *result;
-
-    {
-      struct GNUNET_PQ_QueryParam params[] = {
-        GNUNET_PQ_query_param_auto_from_type (session_hash),
-        GNUNET_PQ_query_param_uint16 (&newcoin_off),
-        GNUNET_PQ_query_param_end
-      };
-
-      result = GNUNET_PQ_exec_prepared (session->conn,
-                                       "get_refresh_order",
-                                       params);
-    }
-    if (PGRES_TUPLES_OK != PQresultStatus (result))
-    {
-      BREAK_DB_ERR (result);
-      PQclear (result);
-      free_dpk_result (denom_pubs, i);
-      return GNUNET_SYSERR;
-    }
-    if (0 == PQntuples (result))
-    {
-      PQclear (result);
-      /* FIXME: may want to distinguish between different error cases! */
-      free_dpk_result (denom_pubs, i);
-      return GNUNET_SYSERR;
-    }
-    GNUNET_assert (1 == PQntuples (result));
-    {
-      struct GNUNET_PQ_ResultSpec rs[] = {
-        GNUNET_PQ_result_spec_rsa_public_key ("denom_pub",
-                                             &denom_pubs[i].rsa_public_key),
-        GNUNET_PQ_result_spec_end
-      };
-      if (GNUNET_OK !=
-          GNUNET_PQ_extract_result (result, rs, 0))
-      {
-        PQclear (result);
-        GNUNET_break (0);
-        free_dpk_result (denom_pubs, i);
-        return GNUNET_SYSERR;
-      }
-      PQclear (result);
-    }
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Store information about the commitment of the
- * given coin for the given refresh session in the database.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database connection to use
- * @param session_hash hash to identify refresh session
- * @param cnc_index cut and choose index (1st dimension)
- * @param num_newcoins coin index size of the @a commit_coins array
- * @param commit_coins array of coin commitments to store
- * @return #GNUNET_OK on success
- *         #GNUNET_SYSERR on error
- */
-static int
-postgres_insert_refresh_commit_coins (void *cls,
-                                      struct TALER_MINTDB_Session *session,
-                                      const struct GNUNET_HashCode *session_hash,
-                                      uint16_t cnc_index,
-                                      uint16_t num_newcoins,
-                                      const struct TALER_MINTDB_RefreshCommitCoin *commit_coins)
-{
-  char *rle;
-  size_t rle_size;
-  PGresult *result;
-  unsigned int i;
-  uint16_t coin_off;
-
-  for (i=0;i<(unsigned int) num_newcoins;i++)
-  {
-    rle = TALER_refresh_link_encrypted_encode (commit_coins[i].refresh_link,
-                                               &rle_size);
-    if (NULL == rle)
-    {
-      GNUNET_break (0);
-      return GNUNET_SYSERR;
-    }
-    coin_off = (uint16_t) i;
-    {
-      struct GNUNET_PQ_QueryParam params[] = {
-        GNUNET_PQ_query_param_auto_from_type (session_hash),
-        GNUNET_PQ_query_param_uint16 (&cnc_index),
-        GNUNET_PQ_query_param_uint16 (&coin_off),
-        GNUNET_PQ_query_param_fixed_size (rle,
-                                         rle_size),
-        GNUNET_PQ_query_param_fixed_size (commit_coins[i].coin_ev,
-                                         commit_coins[i].coin_ev_size),
-        GNUNET_PQ_query_param_end
-      };
-      result = GNUNET_PQ_exec_prepared (session->conn,
-                                       "insert_refresh_commit_coin",
-                                       params);
-    }
-    GNUNET_free (rle);
-    if (PGRES_COMMAND_OK != PQresultStatus (result))
-    {
-      BREAK_DB_ERR (result);
-      PQclear (result);
-      return GNUNET_SYSERR;
-    }
-    if (0 != strcmp ("1", PQcmdTuples (result)))
-    {
-      GNUNET_break (0);
-      PQclear (result);
-      return GNUNET_SYSERR;
-    }
-    PQclear (result);
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * We allocated some @a commit_coin information, but now need
- * to abort. Free allocated memory.
- *
- * @param commit_coins data to free (but not the array itself)
- * @param commit_coins_len length of @a commit_coins array
- */
-static void
-free_cc_result (struct TALER_MINTDB_RefreshCommitCoin *commit_coins,
-                unsigned int commit_coins_len)
-{
-  unsigned int i;
-
-  for (i=0;i<commit_coins_len;i++)
-  {
-    GNUNET_free (commit_coins[i].refresh_link);
-    commit_coins[i].refresh_link = NULL;
-    GNUNET_free (commit_coins[i].coin_ev);
-    commit_coins[i].coin_ev = NULL;
-    commit_coins[i].coin_ev_size = 0;
-  }
-}
-
-
-/**
- * Obtain information about the commitment of the
- * given coin of the given refresh session from the database.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database connection to use
- * @param session_hash hash to identify refresh session
- * @param cnc_index set index (1st dimension)
- * @param num_newcoins size of the @a commit_coins array
- * @param[out] commit_coins array of coin commitments to return
- * @return #GNUNET_OK on success
- *         #GNUNET_NO if not found
- *         #GNUNET_SYSERR on error
- */
-static int
-postgres_get_refresh_commit_coins (void *cls,
-                                   struct TALER_MINTDB_Session *session,
-                                   const struct GNUNET_HashCode *session_hash,
-                                   uint16_t cnc_index,
-                                   uint16_t num_newcoins,
-                                   struct TALER_MINTDB_RefreshCommitCoin *commit_coins)
-{
-  unsigned int i;
-
-  for (i=0;i<(unsigned int) num_newcoins;i++)
-  {
-    uint16_t newcoin_off = (uint16_t) i;
-    struct GNUNET_PQ_QueryParam params[] = {
-      GNUNET_PQ_query_param_auto_from_type (session_hash),
-      GNUNET_PQ_query_param_uint16 (&cnc_index),
-      GNUNET_PQ_query_param_uint16 (&newcoin_off),
-      GNUNET_PQ_query_param_end
-    };
-    void *c_buf;
-    size_t c_buf_size;
-    void *rl_buf;
-    size_t rl_buf_size;
-    struct TALER_RefreshLinkEncrypted *rl;
-    PGresult *result;
-
-    result = GNUNET_PQ_exec_prepared (session->conn,
-                                     "get_refresh_commit_coin",
-                                     params);
-    if (PGRES_TUPLES_OK != PQresultStatus (result))
-    {
-      BREAK_DB_ERR (result);
-      PQclear (result);
-      free_cc_result (commit_coins, i);
-      return GNUNET_SYSERR;
-    }
-    if (0 == PQntuples (result))
-    {
-      PQclear (result);
-      free_cc_result (commit_coins, i);
-      return GNUNET_NO;
-    }
-    {
-      struct GNUNET_PQ_ResultSpec rs[] = {
-        GNUNET_PQ_result_spec_variable_size ("link_vector_enc",
-                                            &rl_buf,
-                                            &rl_buf_size),
-        GNUNET_PQ_result_spec_variable_size ("coin_ev",
-                                            &c_buf,
-                                            &c_buf_size),
-        GNUNET_PQ_result_spec_end
-      };
-
-      if (GNUNET_YES !=
-          GNUNET_PQ_extract_result (result, rs, 0))
-      {
-        PQclear (result);
-        free_cc_result (commit_coins, i);
-        return GNUNET_SYSERR;
-      }
-    }
-    PQclear (result);
-    if (rl_buf_size < sizeof (struct TALER_CoinSpendPrivateKeyP))
-    {
-      GNUNET_free (c_buf);
-      GNUNET_free (rl_buf);
-      free_cc_result (commit_coins, i);
-      return GNUNET_SYSERR;
-    }
-    rl = TALER_refresh_link_encrypted_decode (rl_buf,
-                                              rl_buf_size);
-    GNUNET_free (rl_buf);
-    commit_coins[i].refresh_link = rl;
-    commit_coins[i].coin_ev = c_buf;
-    commit_coins[i].coin_ev_size = c_buf_size;
-  }
-  return GNUNET_YES;
-}
-
-
-/**
- * Store the commitment to the given (encrypted) refresh link data
- * for the given refresh session.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database connection to use
- * @param session_hash hash to identify refresh session
- * @param cnc_index cut and choose index (1st dimension)
- * @param num_links size of the @a links array to return
- * @param[out] links array of link information to store return
- * @return #GNUNET_SYSERR on internal error, #GNUNET_OK on success
- */
-static int
-postgres_insert_refresh_commit_links (void *cls,
-                                      struct TALER_MINTDB_Session *session,
-                                      const struct GNUNET_HashCode *session_hash,
-                                      uint16_t cnc_index,
-                                      uint16_t num_links,
-                                      const struct TALER_RefreshCommitLinkP *links)
-{
-  uint16_t i;
-
-  for (i=0;i<num_links;i++)
-  {
-    struct GNUNET_PQ_QueryParam params[] = {
-      GNUNET_PQ_query_param_auto_from_type (session_hash),
-      GNUNET_PQ_query_param_auto_from_type (&links[i].transfer_pub),
-      GNUNET_PQ_query_param_uint16 (&cnc_index),
-      GNUNET_PQ_query_param_uint16 (&i),
-      GNUNET_PQ_query_param_auto_from_type (&links[i].shared_secret_enc),
-      GNUNET_PQ_query_param_end
-    };
-
-    PGresult *result = GNUNET_PQ_exec_prepared (session->conn,
-					       "insert_refresh_commit_link",
-					       params);
-    if (PGRES_COMMAND_OK != PQresultStatus (result))
-    {
-      BREAK_DB_ERR (result);
-      PQclear (result);
-      return GNUNET_SYSERR;
-    }
-
-    if (0 != strcmp ("1", PQcmdTuples (result)))
-    {
-      GNUNET_break (0);
-      return GNUNET_SYSERR;
-    }
-    PQclear (result);
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Obtain the commited (encrypted) refresh link data
- * for the given refresh session.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database connection to use
- * @param session_hash hash to identify refresh session
- * @param cnc_index cut and choose index (1st dimension)
- * @param num_links size of the @a commit_link array
- * @param[out] links array of link information to return
- * @return #GNUNET_SYSERR on internal error,
- *         #GNUNET_NO if commitment was not found
- *         #GNUNET_OK on success
- */
-static int
-postgres_get_refresh_commit_links (void *cls,
-                                   struct TALER_MINTDB_Session *session,
-                                   const struct GNUNET_HashCode *session_hash,
-                                   uint16_t cnc_index,
-                                   uint16_t num_links,
-                                   struct TALER_RefreshCommitLinkP *links)
-{
-  uint16_t i;
-
-  for (i=0;i<num_links;i++)
-  {
-    struct GNUNET_PQ_QueryParam params[] = {
-      GNUNET_PQ_query_param_auto_from_type (session_hash),
-      GNUNET_PQ_query_param_uint16 (&cnc_index),
-      GNUNET_PQ_query_param_uint16 (&i),
-      GNUNET_PQ_query_param_end
-    };
-    PGresult *result;
-
-    result = GNUNET_PQ_exec_prepared (session->conn,
-				     "get_refresh_commit_link",
-				     params);
-    if (PGRES_TUPLES_OK != PQresultStatus (result))
-    {
-      BREAK_DB_ERR (result);
-      PQclear (result);
-      return GNUNET_SYSERR;
-    }
-    if (0 == PQntuples (result))
-    {
-      PQclear (result);
-      return GNUNET_NO;
-    }
-    {
-      struct GNUNET_PQ_ResultSpec rs[] = {
-	GNUNET_PQ_result_spec_auto_from_type ("transfer_pub",
-					     &links[i].transfer_pub),
-	GNUNET_PQ_result_spec_auto_from_type ("link_secret_enc",
-					     &links[i].shared_secret_enc),
-	GNUNET_PQ_result_spec_end
-      };
-
-      if (GNUNET_YES !=
-	  GNUNET_PQ_extract_result (result, rs, 0))
-      {
-	PQclear (result);
-	return GNUNET_SYSERR;
-      }
-    }
-    PQclear (result);
-  }
-  return GNUNET_OK;
-}
-
-
-/**
- * Get all of the information from the given melt commit operation.
- *
- * @param cls the @e cls of this struct with the plugin-specific state
- * @param session database connection to use
- * @param session_hash hash to identify refresh session
- * @return NULL if the @a session_hash does not correspond to any known melt
- *         operation
- */
-static struct TALER_MINTDB_MeltCommitment *
-postgres_get_melt_commitment (void *cls,
-                              struct TALER_MINTDB_Session *session,
-                              const struct GNUNET_HashCode *session_hash)
-{
-  struct TALER_MINTDB_RefreshSession rs;
-  struct TALER_MINTDB_MeltCommitment *mc;
-  uint16_t cnc_index;
-  unsigned int i;
-
-  if (GNUNET_OK !=
-      postgres_get_refresh_session (cls,
-                                    session,
-                                    session_hash,
-                                    &rs))
-    return NULL;
-  mc = GNUNET_new (struct TALER_MINTDB_MeltCommitment);
-  mc->num_newcoins = rs.num_newcoins;
-  mc->num_oldcoins = rs.num_oldcoins;
-  mc->melts = GNUNET_malloc (mc->num_oldcoins *
-                             sizeof (struct TALER_MINTDB_RefreshMelt));
-  for (i=0;i<mc->num_oldcoins;i++)
-    if (GNUNET_OK !=
-        postgres_get_refresh_melt (cls,
-                                   session,
-                                   session_hash,
-                                   (uint16_t) i,
-                                   &mc->melts[i]))
-      goto cleanup;
-  mc->denom_pubs = GNUNET_malloc (mc->num_newcoins *
-                                  sizeof (struct TALER_DenominationPublicKey));
-  if (GNUNET_OK !=
-      postgres_get_refresh_order (cls,
-                                  session,
-                                  session_hash,
-                                  mc->num_newcoins,
-                                  mc->denom_pubs))
-    goto cleanup;
-  for (cnc_index=0;cnc_index<TALER_CNC_KAPPA;cnc_index++)
-  {
-    mc->commit_coins[cnc_index]
-      = GNUNET_malloc (mc->num_newcoins *
-                       sizeof (struct TALER_MINTDB_RefreshCommitCoin));
-    if (GNUNET_OK !=
-        postgres_get_refresh_commit_coins (cls,
-                                           session,
-                                           session_hash,
-                                           cnc_index,
-                                           mc->num_newcoins,
-                                           mc->commit_coins[cnc_index]))
-      goto cleanup;
-    mc->commit_links[cnc_index]
-      = GNUNET_malloc (mc->num_oldcoins *
-                       sizeof (struct TALER_RefreshCommitLinkP));
-    if (GNUNET_OK !=
-        postgres_get_refresh_commit_links (cls,
-                                           session,
-                                           session_hash,
-                                           cnc_index,
-                                           mc->num_oldcoins,
-                                           mc->commit_links[cnc_index]))
-      goto cleanup;
-  }
-  return mc;
-
- cleanup:
-  common_free_melt_commitment (cls, mc);
-  return NULL;
-}
-
-
-/**
- * Insert signature of a new coin generated during refresh into
- * the database indexed by the refresh session and the index
- * of the coin.  This data is later used should an old coin
- * be used to try to obtain the private keys during "/refresh/link".
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database connection
- * @param session_hash hash to identify refresh session
- * @param newcoin_index coin index
- * @param ev_sig coin signature
- * @return #GNUNET_OK on success
- */
-static int
-postgres_insert_refresh_out (void *cls,
-                             struct TALER_MINTDB_Session *session,
-                             const struct GNUNET_HashCode *session_hash,
-                             uint16_t newcoin_index,
-                             const struct TALER_DenominationSignature *ev_sig)
-{
-  PGresult *result;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (session_hash),
-    GNUNET_PQ_query_param_uint16 (&newcoin_index),
-    GNUNET_PQ_query_param_rsa_signature (ev_sig->rsa_signature),
-    GNUNET_PQ_query_param_end
-  };
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "insert_refresh_out",
-                                   params);
-  if (PGRES_COMMAND_OK != PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  PQclear (result);
-  return GNUNET_OK;
-}
-
-
-/**
- * Obtain the link data of a coin, that is the encrypted link
- * information, the denomination keys and the signatures.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database connection
- * @param session_hash refresh session to get linkage data for
- * @return all known link data for the session
- */
-static struct TALER_MINTDB_LinkDataList *
-postgres_get_link_data_list (void *cls,
-                             struct TALER_MINTDB_Session *session,
-                             const struct GNUNET_HashCode *session_hash)
-{
-  struct TALER_MINTDB_LinkDataList *ldl;
-  struct TALER_MINTDB_LinkDataList *pos;
-  int i;
-  int nrows;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (session_hash),
-    GNUNET_PQ_query_param_end
-  };
-  PGresult *result;
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "get_link",
-                                   params);
-
-  ldl = NULL;
-  if (PGRES_TUPLES_OK != PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return NULL;
-  }
-  nrows = PQntuples (result);
-  if (0 == nrows)
-  {
-    PQclear (result);
-    return NULL;
-  }
-
-  for (i = 0; i < nrows; i++)
-  {
-    struct TALER_RefreshLinkEncrypted *link_enc;
-    struct GNUNET_CRYPTO_rsa_PublicKey *denom_pub;
-    struct GNUNET_CRYPTO_rsa_Signature *sig;
-    void *ld_buf;
-    size_t ld_buf_size;
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      GNUNET_PQ_result_spec_variable_size ("link_vector_enc",
-                                          &ld_buf,
-                                          &ld_buf_size),
-      GNUNET_PQ_result_spec_rsa_signature ("ev_sig",
-                                          &sig),
-      GNUNET_PQ_result_spec_rsa_public_key ("denom_pub",
-                                           &denom_pub),
-      GNUNET_PQ_result_spec_end
-    };
-
-    if (GNUNET_OK !=
-        GNUNET_PQ_extract_result (result, rs, i))
-    {
-      PQclear (result);
-      GNUNET_break (0);
-      common_free_link_data_list (cls,
-                                  ldl);
-      return NULL;
-    }
-    if (ld_buf_size < sizeof (struct GNUNET_CRYPTO_EddsaPrivateKey))
-    {
-      PQclear (result);
-      GNUNET_free (ld_buf);
-      common_free_link_data_list (cls,
-                                  ldl);
-      return NULL;
-    }
-    link_enc = TALER_refresh_link_encrypted_decode (ld_buf,
-                                                    ld_buf_size);
-    GNUNET_free (ld_buf);
-    pos = GNUNET_new (struct TALER_MINTDB_LinkDataList);
-    pos->next = ldl;
-    pos->link_data_enc = link_enc;
-    pos->denom_pub.rsa_public_key = denom_pub;
-    pos->ev_sig.rsa_signature = sig;
-    ldl = pos;
-  }
-  return ldl;
-}
-
-
-/**
- * Obtain shared secret and transfer public key from the public key of
- * the coin.  This information and the link information returned by
- * #postgres_get_link_data_list() enable the owner of an old coin to
- * determine the private keys of the new coins after the melt.
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database connection
- * @param coin_pub public key of the coin
- * @param tdc function to call for each session the coin was melted into
- * @param tdc_cls closure for @a tdc
- * @return #GNUNET_OK on success,
- *         #GNUNET_NO on failure (not found)
- *         #GNUNET_SYSERR on internal failure (database issue)
- */
-static int
-postgres_get_transfer (void *cls,
-                       struct TALER_MINTDB_Session *session,
-                       const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                       TALER_MINTDB_TransferDataCallback tdc,
-                       void *tdc_cls)
-{
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (coin_pub),
-    GNUNET_PQ_query_param_end
-  };
-  PGresult *result;
-  int nrows;
-  int i;
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "get_transfer",
-                                   params);
-  if (PGRES_TUPLES_OK !=
-      PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  nrows = PQntuples (result);
-  if (0 == nrows)
-  {
-    /* no matches found */
-    PQclear (result);
-    return GNUNET_NO;
-  }
-  for (i=0;i<nrows;i++)
-  {
-    struct GNUNET_HashCode session_hash;
-    struct TALER_TransferPublicKeyP transfer_pub;
-    struct TALER_EncryptedLinkSecretP shared_secret_enc;
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      GNUNET_PQ_result_spec_auto_from_type ("transfer_pub", &transfer_pub),
-      GNUNET_PQ_result_spec_auto_from_type ("link_secret_enc", &shared_secret_enc),
-      GNUNET_PQ_result_spec_auto_from_type ("session_hash", &session_hash),
-      GNUNET_PQ_result_spec_end
-    };
-
-    if (GNUNET_OK !=
-        GNUNET_PQ_extract_result (result, rs, 0))
-    {
-      PQclear (result);
-      GNUNET_break (0);
-      return GNUNET_SYSERR;
-    }
-    tdc (tdc_cls,
-         &session_hash,
-         &transfer_pub,
-         &shared_secret_enc);
-  }
-  PQclear (result);
-  return GNUNET_OK;
-}
-
-
-/**
- * Compile a list of all (historic) transactions performed
- * with the given coin (/refresh/melt and /deposit operations).
- *
- * @param cls the `struct PostgresClosure` with the plugin-specific state
- * @param session database connection
- * @param coin_pub coin to investigate
- * @return list of transactions, NULL if coin is fresh
- */
-static struct TALER_MINTDB_TransactionList *
-postgres_get_coin_transactions (void *cls,
-                                struct TALER_MINTDB_Session *session,
-                                const struct TALER_CoinSpendPublicKeyP *coin_pub)
-{
-  struct TALER_MINTDB_TransactionList *head;
-
-  head = NULL;
-  /* check deposits */
-  {
-    struct GNUNET_PQ_QueryParam params[] = {
-      GNUNET_PQ_query_param_auto_from_type (&coin_pub->eddsa_pub),
-      GNUNET_PQ_query_param_end
-    };
-    int nrows;
-    int i;
-    PGresult *result;
-    struct TALER_MINTDB_TransactionList *tl;
-
-    result = GNUNET_PQ_exec_prepared (session->conn,
-                                     "get_deposit_with_coin_pub",
-                                     params);
-    if (PGRES_TUPLES_OK != PQresultStatus (result))
-    {
-      QUERY_ERR (result);
-      PQclear (result);
-      goto cleanup;
-    }
-    nrows = PQntuples (result);
-    for (i = 0; i < nrows; i++)
-    {
-      struct TALER_MINTDB_Deposit *deposit;
-
-      deposit = GNUNET_new (struct TALER_MINTDB_Deposit);
-      {
-        struct GNUNET_PQ_ResultSpec rs[] = {
-          GNUNET_PQ_result_spec_rsa_public_key ("denom_pub",
-                                               &deposit->coin.denom_pub.rsa_public_key),
-          GNUNET_PQ_result_spec_rsa_signature ("denom_sig",
-                                              &deposit->coin.denom_sig.rsa_signature),
-          GNUNET_PQ_result_spec_uint64 ("transaction_id",
-                                       &deposit->transaction_id),
-          TALER_PQ_result_spec_amount ("amount_with_fee",
-                                       &deposit->amount_with_fee),
-          TALER_PQ_result_spec_amount ("deposit_fee",
-                                       &deposit->deposit_fee),
-          GNUNET_PQ_result_spec_absolute_time ("timestamp",
-                                              &deposit->timestamp),
-          GNUNET_PQ_result_spec_absolute_time ("refund_deadline",
-                                              &deposit->refund_deadline),
-          GNUNET_PQ_result_spec_auto_from_type ("merchant_pub",
-                                               &deposit->merchant_pub),
-          GNUNET_PQ_result_spec_auto_from_type ("h_contract",
-                                               &deposit->h_contract),
-          GNUNET_PQ_result_spec_auto_from_type ("h_wire",
-                                               &deposit->h_wire),
-          TALER_PQ_result_spec_json ("wire",
-                                     &deposit->wire),
-          GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
-                                               &deposit->csig),
-          GNUNET_PQ_result_spec_end
-        };
-
-        if (GNUNET_OK !=
-            GNUNET_PQ_extract_result (result, rs, i))
-        {
-          GNUNET_break (0);
-          GNUNET_free (deposit);
-          PQclear (result);
-          goto cleanup;
-        }
-        deposit->coin.coin_pub = *coin_pub;
-      }
-      tl = GNUNET_new (struct TALER_MINTDB_TransactionList);
-      tl->next = head;
-      tl->type = TALER_MINTDB_TT_DEPOSIT;
-      tl->details.deposit = deposit;
-      head = tl;
-      continue;
-    }
-    PQclear (result);
-  }
-  /* Handle refreshing */
-  {
-    struct GNUNET_PQ_QueryParam params[] = {
-      GNUNET_PQ_query_param_auto_from_type (&coin_pub->eddsa_pub),
-      GNUNET_PQ_query_param_end
-    };
-    int nrows;
-    int i;
-    PGresult *result;
-    struct TALER_MINTDB_TransactionList *tl;
-
-    /* check if the melt record exists and get it */
-    result = GNUNET_PQ_exec_prepared (session->conn,
-                                     "get_refresh_melt_by_coin",
-                                     params);
-    if (PGRES_TUPLES_OK != PQresultStatus (result))
-    {
-      BREAK_DB_ERR (result);
-      PQclear (result);
-      goto cleanup;
-    }
-    nrows = PQntuples (result);
-    for (i=0;i<nrows;i++)
-    {
-      struct TALER_MINTDB_RefreshMelt *melt;
-
-      melt = GNUNET_new (struct TALER_MINTDB_RefreshMelt);
-      {
-        struct GNUNET_PQ_ResultSpec rs[] = {
-          GNUNET_PQ_result_spec_auto_from_type ("session_hash",
-                                               &melt->session_hash),
-          /* oldcoin_index not needed */
-          GNUNET_PQ_result_spec_auto_from_type ("coin_sig",
-                                               &melt->coin_sig),
-          TALER_PQ_result_spec_amount ("amount_with_fee",
-                                       &melt->amount_with_fee),
-          TALER_PQ_result_spec_amount ("melt_fee",
-                                       &melt->melt_fee),
-          GNUNET_PQ_result_spec_end
-        };
-        if (GNUNET_OK !=
-            GNUNET_PQ_extract_result (result, rs, 0))
-        {
-          GNUNET_break (0);
-          GNUNET_free (melt);
-          PQclear (result);
-          goto cleanup;
-        }
-	melt->coin.coin_pub = *coin_pub;
-      }
-      tl = GNUNET_new (struct TALER_MINTDB_TransactionList);
-      tl->next = head;
-      tl->type = TALER_MINTDB_TT_REFRESH_MELT;
-      tl->details.melt = melt;
-      head = tl;
-      continue;
-    }
-    PQclear (result);
-  }
-  return head;
- cleanup:
-  if (NULL != head)
-    common_free_coin_transaction_list (cls,
-                                       head);
-  return NULL;
-}
-
-
-/**
- * Lookup the list of Taler transactions that were aggregated
- * into a wire transfer by the respective @a wtid.
- *
- * @param cls closure
- * @param session database connection
- * @param wtid the raw wire transfer identifier we used
- * @param cb function to call on each transaction found
- * @param cb_cls closure for @a cb
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on database errors,
- *         #GNUNET_NO if we found no results
- */
-static int
-postgres_lookup_wire_transfer (void *cls,
-                               struct TALER_MINTDB_Session *session,
-                               const struct TALER_WireTransferIdentifierRawP *wtid,
-                               TALER_MINTDB_WireTransferDataCallback cb,
-                               void *cb_cls)
-{
-  PGresult *result;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (wtid),
-    GNUNET_PQ_query_param_end
-  };
-  int nrows;
-  int i;
-
-  /* check if the melt record exists and get it */
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "lookup_transactions",
-                                   params);
-  if (PGRES_TUPLES_OK != PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  nrows = PQntuples (result);
-  if (0 == nrows)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "lookup_wire_transfer() returned 0 matching rows\n");
-    PQclear (result);
-    return GNUNET_NO;
-  }
-  for (i=0;i<nrows;i++)
-  {
-    struct GNUNET_HashCode h_contract;
-    struct GNUNET_HashCode h_wire;
-    struct TALER_CoinSpendPublicKeyP coin_pub;
-    struct TALER_MerchantPublicKeyP merchant_pub;
-    uint64_t transaction_id;
-    struct GNUNET_TIME_Absolute exec_time;
-    struct TALER_Amount coin_amount;
-    struct TALER_Amount coin_fee;
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      GNUNET_PQ_result_spec_auto_from_type ("h_contract", &h_contract),
-      GNUNET_PQ_result_spec_auto_from_type ("h_wire", &h_wire),
-      GNUNET_PQ_result_spec_auto_from_type ("coin_pub", &coin_pub),
-      GNUNET_PQ_result_spec_auto_from_type ("merchant_pub", &merchant_pub),
-      GNUNET_PQ_result_spec_uint64 ("transaction_id", &transaction_id),
-      GNUNET_PQ_result_spec_absolute_time ("execution_time", &exec_time),
-      TALER_PQ_result_spec_amount ("coin_amount", &coin_amount),
-      TALER_PQ_result_spec_amount ("coin_fee", &coin_fee),
-       GNUNET_PQ_result_spec_end
-    };
-    if (GNUNET_OK != GNUNET_PQ_extract_result (result, rs, i))
-    {
-      GNUNET_break (0);
-      PQclear (result);
-      return GNUNET_SYSERR;
-    }
-    cb (cb_cls,
-        &merchant_pub,
-        &h_wire,
-        &h_contract,
-        transaction_id,
-        &coin_pub,
-        &coin_amount,
-        &coin_fee);
-  }
-  PQclear (result);
-  return GNUNET_OK;
-}
-
-
-/**
- * Try to find the wire transfer details for a deposit operation.
- * If we did not execute the deposit yet, return when it is supposed
- * to be executed.
- *
- * @param cls closure
- * @param session database connection
- * @param h_contract hash of the contract
- * @param h_wire hash of merchant wire details
- * @param coin_pub public key of deposited coin
- * @param merchant_pub merchant public key
- * @param transaction_id transaction identifier
- * @param cb function to call with the result
- * @param cb_cls closure to pass to @a cb
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors,
- *         #GNUNET_NO if nothing was found
- */
-static int
-postgres_wire_lookup_deposit_wtid (void *cls,
-                                   struct TALER_MINTDB_Session *session,
-				   const struct GNUNET_HashCode *h_contract,
-				   const struct GNUNET_HashCode *h_wire,
-				   const struct TALER_CoinSpendPublicKeyP *coin_pub,
-				   const struct TALER_MerchantPublicKeyP *merchant_pub,
-				   uint64_t transaction_id,
-				   TALER_MINTDB_DepositWtidCallback cb,
-				   void *cb_cls)
-{
-  PGresult *result;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (coin_pub),
-    GNUNET_PQ_query_param_auto_from_type (h_contract),
-    GNUNET_PQ_query_param_auto_from_type (h_wire),
-    GNUNET_PQ_query_param_uint64 (&transaction_id),
-    GNUNET_PQ_query_param_auto_from_type (merchant_pub),
-    GNUNET_PQ_query_param_end
-  };
-  int nrows;
-
-  /* check if the melt record exists and get it */
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "lookup_deposit_wtid",
-                                   params);
-  if (PGRES_TUPLES_OK != PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  nrows = PQntuples (result);
-  if (0 == nrows)
-  {
-    GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                "lookup_deposit_wtid returned 0 matching rows\n");
-    PQclear (result);
-
-    /* Check if transaction exists in deposits, so that we just
-       do not have a WTID yet, if so, do call the CB with a NULL wtid
-       and return GNUNET_YES! */
-    {
-      struct GNUNET_PQ_QueryParam params2[] = {
-        GNUNET_PQ_query_param_auto_from_type (coin_pub),
-        GNUNET_PQ_query_param_uint64 (&transaction_id),
-        GNUNET_PQ_query_param_auto_from_type (merchant_pub),
-        GNUNET_PQ_query_param_auto_from_type (h_contract),
-        GNUNET_PQ_query_param_auto_from_type (h_wire),
-        GNUNET_PQ_query_param_end
-      };
-
-      result = GNUNET_PQ_exec_prepared (session->conn,
-                                       "get_deposit_for_wtid",
-                                       params2);
-      if (PGRES_TUPLES_OK != PQresultStatus (result))
-      {
-        BREAK_DB_ERR (result);
-        PQclear (result);
-        return GNUNET_SYSERR;
-      }
-    }
-    nrows = PQntuples (result);
-    if (0 == nrows)
-    {
-      GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
-                  "get_deposit_for_wtid returned 0 matching rows\n");
-      PQclear (result);
-      return GNUNET_NO;
-    }
-
-    /* Ok, we're aware of the transaction, but it has not yet been
-       executed */
-    {
-      struct GNUNET_TIME_Absolute exec_time;
-      struct TALER_Amount coin_amount;
-      struct TALER_Amount coin_fee;
-      struct GNUNET_PQ_ResultSpec rs[] = {
-        TALER_PQ_result_spec_amount ("amount_with_fee", &coin_amount),
-        TALER_PQ_result_spec_amount ("deposit_fee", &coin_fee),
-        GNUNET_PQ_result_spec_absolute_time ("wire_deadline", &exec_time),
-        GNUNET_PQ_result_spec_end
-      };
-
-      if (GNUNET_OK != GNUNET_PQ_extract_result (result, rs, 0))
-      {
-        GNUNET_break (0);
-        PQclear (result);
-        return GNUNET_SYSERR;
-      }
-      cb (cb_cls,
-          NULL,
-          &coin_amount,
-          &coin_fee,
-          exec_time);
-      PQclear (result);
-      return GNUNET_YES;
-    }
-  }
-  if (1 != nrows)
-  {
-    GNUNET_break (0);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  {
-    struct TALER_WireTransferIdentifierRawP wtid;
-    struct GNUNET_TIME_Absolute exec_time;
-    struct TALER_Amount coin_amount;
-    struct TALER_Amount coin_fee;
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      GNUNET_PQ_result_spec_auto_from_type ("wtid_raw", &wtid),
-      GNUNET_PQ_result_spec_absolute_time ("execution_time", &exec_time),
-      TALER_PQ_result_spec_amount ("coin_amount", &coin_amount),
-      TALER_PQ_result_spec_amount ("coin_fee", &coin_fee),
-      GNUNET_PQ_result_spec_end
-    };
-    if (GNUNET_OK != GNUNET_PQ_extract_result (result, rs, 0))
-    {
-      GNUNET_break (0);
-      PQclear (result);
-      return GNUNET_SYSERR;
-    }
-    cb (cb_cls,
-        &wtid,
-        &coin_amount,
-        &coin_fee,
-        exec_time);
-  }
-  PQclear (result);
-  return GNUNET_OK;
-}
-
-
-/**
- * Function called to insert aggregation information into the DB.
- *
- * @param cls closure
- * @param session database connection
- * @param wtid the raw wire transfer identifier we used
- * @param merchant_pub public key of the merchant (should be same for all callbacks with the same @e cls)
- * @param h_wire hash of wire transfer details of the merchant (should be same for all callbacks with the same @e cls)
- * @param h_contract which contract was this payment about
- * @param transaction_id merchant's transaction ID for the payment
- * @param coin_pub which public key was this payment about
- * @param coin_value amount contributed by this coin in total
- * @param coin_fee deposit fee charged by mint for this coin
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors
- */
-static int
-postgres_insert_aggregation_tracking (void *cls,
-                                      struct TALER_MINTDB_Session *session,
-                                      const struct TALER_WireTransferIdentifierRawP *wtid,
-                                      const struct TALER_MerchantPublicKeyP *merchant_pub,
-                                      const struct GNUNET_HashCode *h_wire,
-                                      const struct GNUNET_HashCode *h_contract,
-                                      uint64_t transaction_id,
-                                      struct GNUNET_TIME_Absolute execution_time,
-                                      const struct TALER_CoinSpendPublicKeyP *coin_pub,
-                                      const struct TALER_Amount *coin_value,
-                                      const struct TALER_Amount *coin_fee)
-{
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_auto_from_type (h_contract),
-    GNUNET_PQ_query_param_auto_from_type (h_wire),
-    GNUNET_PQ_query_param_auto_from_type (coin_pub),
-    GNUNET_PQ_query_param_auto_from_type (merchant_pub),
-    GNUNET_PQ_query_param_uint64 (&transaction_id),
-    GNUNET_PQ_query_param_auto_from_type (wtid),
-    GNUNET_PQ_query_param_absolute_time (&execution_time),
-    TALER_PQ_query_param_amount (coin_value),
-    TALER_PQ_query_param_amount (coin_fee),
-    GNUNET_PQ_query_param_end
-  };
-  PGresult *result;
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "insert_aggregation_tracking",
-                                   params);
-  if (PGRES_COMMAND_OK != PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  if (0 != strcmp ("1", PQcmdTuples (result)))
-  {
-    GNUNET_break (0);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  PQclear (result);
-  return GNUNET_OK;
-}
-
-
-/**
- * Function called to insert wire transfer commit data into the DB.
- *
- * @param cls closure
- * @param session database connection
- * @param type type of the wire transfer (i.e. "sepa")
- * @param buf buffer with wire transfer preparation data
- * @param buf_size number of bytes in @a buf
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors
- */
-static int
-postgres_wire_prepare_data_insert (void *cls,
-                                   struct TALER_MINTDB_Session *session,
-                                   const char *type,
-                                   const char *buf,
-                                   size_t buf_size)
-{
-  PGresult *result;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_fixed_size (type, strlen (type) + 1),
-    GNUNET_PQ_query_param_fixed_size (buf, buf_size),
-    GNUNET_PQ_query_param_end
-  };
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "wire_prepare_data_insert",
-                                   params);
-  if (PGRES_COMMAND_OK != PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  PQclear (result);
-  return GNUNET_OK;
-}
-
-
-/**
- * Function called to mark wire transfer commit data as finished.
- *
- * @param cls closure
- * @param session database connection
- * @param rowid which entry to mark as finished
- * @return #GNUNET_OK on success, #GNUNET_SYSERR on DB errors
- */
-static int
-postgres_wire_prepare_data_mark_finished (void *cls,
-                                          struct TALER_MINTDB_Session *session,
-                                          unsigned long long rowid)
-{
-  uint64_t serial_id = rowid;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_uint64 (&serial_id),
-    GNUNET_PQ_query_param_end
-  };
-  PGresult *result;
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "wire_prepare_data_mark_done",
-                                   params);
-  if (PGRES_COMMAND_OK !=
-      PQresultStatus (result))
-  {
-    BREAK_DB_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  PQclear (result);
-  return GNUNET_OK;
-}
-
-
-/**
- * Function called to get an unfinished wire transfer
- * preparation data. Fetches at most one item.
- *
- * @param cls closure
- * @param session database connection
- * @param type type fo the wire transfer (i.e. "sepa")
- * @param cb function to call for ONE unfinished item
- * @param cb_cls closure for @a cb
- * @return #GNUNET_OK on success,
- *         #GNUNET_NO if there are no entries,
- *         #GNUNET_SYSERR on DB errors
- */
-static int
-postgres_wire_prepare_data_get (void *cls,
-                                struct TALER_MINTDB_Session *session,
-                                const char *type,
-                                TALER_MINTDB_WirePreparationCallback cb,
-                                void *cb_cls)
-{
-  PGresult *result;
-  struct GNUNET_PQ_QueryParam params[] = {
-    GNUNET_PQ_query_param_fixed_size (type, strlen (type) + 1),
-    GNUNET_PQ_query_param_end
-  };
-
-  result = GNUNET_PQ_exec_prepared (session->conn,
-                                   "wire_prepare_data_get",
-                                   params);
-  if (PGRES_TUPLES_OK != PQresultStatus (result))
-  {
-    QUERY_ERR (result);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-  if (0 == PQntuples (result))
-  {
-    PQclear (result);
-    return GNUNET_NO;
-  }
-  if (1 != PQntuples (result))
-  {
-    GNUNET_break (0);
-    PQclear (result);
-    return GNUNET_SYSERR;
-  }
-
-  {
-    uint64_t serial_id;
-    void *buf = NULL;
-    size_t buf_size;
-    struct GNUNET_PQ_ResultSpec rs[] = {
-      GNUNET_PQ_result_spec_uint64 ("serial_id",
-                                   &serial_id),
-      GNUNET_PQ_result_spec_variable_size ("buf",
-                                          &buf,
-                                          &buf_size),
-      GNUNET_PQ_result_spec_end
-    };
-
-    if (GNUNET_OK !=
-        GNUNET_PQ_extract_result (result,
-                                 rs,
-                                 0))
-    {
-      GNUNET_break (0);
-      PQclear (result);
-      return GNUNET_SYSERR;
-    }
-    cb (cb_cls,
-        serial_id,
-        buf,
-        buf_size);
-    GNUNET_PQ_cleanup_result (rs);
-  }
-  PQclear (result);
-  return GNUNET_OK;
-}
-
-
-/**
- * Initialize Postgres database subsystem.
- *
- * @param cls a configuration instance
- * @return NULL on error, otherwise a `struct TALER_MINTDB_Plugin`
- */
-void *
-libtaler_plugin_mintdb_postgres_init (void *cls)
-{
-  struct GNUNET_CONFIGURATION_Handle *cfg = cls;
-  struct PostgresClosure *pg;
-  struct TALER_MINTDB_Plugin *plugin;
-
-  pg = GNUNET_new (struct PostgresClosure);
-
-  if (0 != pthread_key_create (&pg->db_conn_threadlocal,
-                               &db_conn_destroy))
-  {
-    TALER_LOG_ERROR ("Cannnot create pthread key.\n");
-    GNUNET_free (pg);
-    return NULL;
-  }
-  if (GNUNET_OK !=
-      GNUNET_CONFIGURATION_get_value_string (cfg,
-                                             "mintdb-postgres",
-                                             "db_conn_str",
-                                             &pg->connection_cfg_str))
-  {
-    GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               "mintdb-postgres",
-                               "db_conn_str");
-    GNUNET_free (pg);
-    return NULL;
-  }
-  plugin = GNUNET_new (struct TALER_MINTDB_Plugin);
-  plugin->cls = pg;
-  plugin->get_session = &postgres_get_session;
-  plugin->drop_temporary = &postgres_drop_temporary;
-  plugin->create_tables = &postgres_create_tables;
-  plugin->start = &postgres_start;
-  plugin->commit = &postgres_commit;
-  plugin->rollback = &postgres_rollback;
-  plugin->insert_denomination_info = &postgres_insert_denomination_info;
-  plugin->get_denomination_info = &postgres_get_denomination_info;
-  plugin->reserve_get = &postgres_reserve_get;
-  plugin->reserves_in_insert = &postgres_reserves_in_insert;
-  plugin->get_withdraw_info = &postgres_get_withdraw_info;
-  plugin->insert_withdraw_info = &postgres_insert_withdraw_info;
-  plugin->get_reserve_history = &postgres_get_reserve_history;
-  plugin->free_reserve_history = &common_free_reserve_history;
-  plugin->have_deposit = &postgres_have_deposit;
-  plugin->mark_deposit_tiny = &postgres_mark_deposit_tiny;
-  plugin->mark_deposit_done = &postgres_mark_deposit_done;
-  plugin->get_ready_deposit = &postgres_get_ready_deposit;
-  plugin->iterate_matching_deposits = &postgres_iterate_matching_deposits;
-  plugin->insert_deposit = &postgres_insert_deposit;
-  plugin->get_refresh_session = &postgres_get_refresh_session;
-  plugin->create_refresh_session = &postgres_create_refresh_session;
-  plugin->insert_refresh_melt = &postgres_insert_refresh_melt;
-  plugin->get_refresh_melt = &postgres_get_refresh_melt;
-  plugin->insert_refresh_order = &postgres_insert_refresh_order;
-  plugin->get_refresh_order = &postgres_get_refresh_order;
-  plugin->insert_refresh_commit_coins = &postgres_insert_refresh_commit_coins;
-  plugin->get_refresh_commit_coins = &postgres_get_refresh_commit_coins;
-  plugin->insert_refresh_commit_links = &postgres_insert_refresh_commit_links;
-  plugin->get_refresh_commit_links = &postgres_get_refresh_commit_links;
-  plugin->get_melt_commitment = &postgres_get_melt_commitment;
-  plugin->free_melt_commitment = &common_free_melt_commitment;
-  plugin->insert_refresh_out = &postgres_insert_refresh_out;
-  plugin->get_link_data_list = &postgres_get_link_data_list;
-  plugin->free_link_data_list = &common_free_link_data_list;
-  plugin->get_transfer = &postgres_get_transfer;
-  plugin->get_coin_transactions = &postgres_get_coin_transactions;
-  plugin->free_coin_transaction_list = &common_free_coin_transaction_list;
-  plugin->lookup_wire_transfer = &postgres_lookup_wire_transfer;
-  plugin->wire_lookup_deposit_wtid = &postgres_wire_lookup_deposit_wtid;
-  plugin->insert_aggregation_tracking = &postgres_insert_aggregation_tracking;
-  plugin->wire_prepare_data_insert = &postgres_wire_prepare_data_insert;
-  plugin->wire_prepare_data_mark_finished = &postgres_wire_prepare_data_mark_finished;
-  plugin->wire_prepare_data_get = &postgres_wire_prepare_data_get;
-  return plugin;
-}
-
-
-/**
- * Shutdown Postgres database subsystem.
- *
- * @param cls a `struct TALER_MINTDB_Plugin`
- * @return NULL (always)
- */
-void *
-libtaler_plugin_mintdb_postgres_done (void *cls)
-{
-  struct TALER_MINTDB_Plugin *plugin = cls;
-  struct PostgresClosure *pg = plugin->cls;
-
-  GNUNET_free (pg->connection_cfg_str);
-  GNUNET_free (pg);
-  GNUNET_free (plugin);
-  return NULL;
-}
-
-/* end of plugin_mintdb_postgres.c */
diff --git a/src/mintdb/test-mint-db-postgres.conf b/src/mintdb/test-mint-db-postgres.conf
deleted file mode 100644
index 2bdb63eb0..000000000
--- a/src/mintdb/test-mint-db-postgres.conf
+++ /dev/null
@@ -1,8 +0,0 @@
-[mint]
-#The DB plugin to use
-DB = postgres
-
-[mintdb-postgres]
-
-#The connection string the plugin has to use for connecting to the database
-DB_CONN_STR = postgres:///talercheck
diff --git a/src/mintdb/test_mintdb.c b/src/mintdb/test_mintdb.c
deleted file mode 100644
index 0938f8fab..000000000
--- a/src/mintdb/test_mintdb.c
+++ /dev/null
@@ -1,907 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014, 2015, 2016 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mintdb/test_mintdb.c
- * @brief test cases for DB interaction functions
- * @author Sree Harsha Totakura <sreeharsha@totakura.in>
- */
-#include "platform.h"
-#include "taler_mintdb_lib.h"
-#include "taler_mintdb_plugin.h"
-
-static int result;
-
-#define FAILIF(cond)                              \
-  do {                                          \
-    if (!(cond)){ break;}                      \
-    GNUNET_break (0);                           \
-    goto drop;                                  \
-  } while (0)
-
-
-#define RND_BLK(ptr)                                                    \
-  GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK, ptr, sizeof (*ptr))
-
-#define ZR_BLK(ptr) \
-  memset (ptr, 0, sizeof (*ptr))
-
-
-#define CURRENCY "EUR"
-
-static struct TALER_MINTDB_Plugin *plugin;
-
-/**
- * Checks if the given reserve has the given amount of balance and expiry
- *
- * @param session the database connection
- * @param pub the public key of the reserve
- * @param value balance value
- * @param fraction balance fraction
- * @param currency currency of the reserve
- * @return #GNUNET_OK if the given reserve has the same balance and expiration
- *           as the given parameters; #GNUNET_SYSERR if not
- */
-static int
-check_reserve (struct TALER_MINTDB_Session *session,
-               const struct TALER_ReservePublicKeyP *pub,
-               uint64_t value,
-               uint32_t fraction,
-               const char *currency)
-{
-  struct TALER_MINTDB_Reserve reserve;
-
-  reserve.pub = *pub;
-
-  FAILIF (GNUNET_OK !=
-          plugin->reserve_get (plugin->cls,
-                               session,
-                               &reserve));
-  FAILIF (value != reserve.balance.value);
-  FAILIF (fraction != reserve.balance.fraction);
-  FAILIF (0 != strcmp (currency, reserve.balance.currency));
-
-  return GNUNET_OK;
- drop:
-  return GNUNET_SYSERR;
-}
-
-
-struct DenomKeyPair
-{
-  struct TALER_DenominationPrivateKey priv;
-  struct TALER_DenominationPublicKey pub;
-};
-
-
-/**
- * Destroy a denomination key pair.  The key is not necessarily removed from the DB.
- *
- * @param dkp the keypair to destroy
- */
-static void
-destroy_denom_key_pair (struct DenomKeyPair *dkp)
-{
-  GNUNET_CRYPTO_rsa_public_key_free (dkp->pub.rsa_public_key);
-  GNUNET_CRYPTO_rsa_private_key_free (dkp->priv.rsa_private_key);
-  GNUNET_free (dkp);
-}
-
-
-/**
- * Create a denominaiton key pair by registering the denomination in the DB.
- *
- * @param size the size of the denomination key
- * @param session the DB session
- * @return the denominaiton key pair; NULL upon error
- */
-static struct DenomKeyPair *
-create_denom_key_pair (unsigned int size,
-                       struct TALER_MINTDB_Session *session,
-                       const struct TALER_Amount *value,
-                       const struct TALER_Amount *fee_withdraw,
-                       const struct TALER_Amount *fee_deposit,
-                       const struct TALER_Amount *fee_refresh)
-{
-  struct DenomKeyPair *dkp;
-  struct TALER_MINTDB_DenominationKeyIssueInformation dki;
-
-  dkp = GNUNET_new (struct DenomKeyPair);
-  dkp->priv.rsa_private_key = GNUNET_CRYPTO_rsa_private_key_create (size);
-  GNUNET_assert (NULL != dkp->priv.rsa_private_key);
-  dkp->pub.rsa_public_key
-    = GNUNET_CRYPTO_rsa_private_key_get_public (dkp->priv.rsa_private_key);
-
-  /* Using memset() as fields like master key and signature
-     are not properly initialized for this test. */
-  memset (&dki,
-          0,
-          sizeof (struct TALER_MINTDB_DenominationKeyIssueInformation));
-  dki.denom_pub = dkp->pub;
-  dki.issue.properties.start = GNUNET_TIME_absolute_hton (GNUNET_TIME_absolute_get ());
-  dki.issue.properties.expire_withdraw = GNUNET_TIME_absolute_hton
-      (GNUNET_TIME_absolute_add (GNUNET_TIME_absolute_get (),
-                                 GNUNET_TIME_UNIT_HOURS));
-  dki.issue.properties.expire_spend = GNUNET_TIME_absolute_hton
-      (GNUNET_TIME_absolute_add
-       (GNUNET_TIME_absolute_get (),
-        GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 2)));
-  dki.issue.properties.expire_legal = GNUNET_TIME_absolute_hton
-      (GNUNET_TIME_absolute_add
-       (GNUNET_TIME_absolute_get (),
-        GNUNET_TIME_relative_multiply (GNUNET_TIME_UNIT_HOURS, 3)));
-  TALER_amount_hton (&dki.issue.properties.value, value);
-  TALER_amount_hton (&dki.issue.properties.fee_withdraw, fee_withdraw);
-  TALER_amount_hton (&dki.issue.properties.fee_deposit, fee_deposit);
-  TALER_amount_hton (&dki.issue.properties.fee_refresh, fee_refresh);
-  GNUNET_CRYPTO_rsa_public_key_hash (dkp->pub.rsa_public_key,
-                                     &dki.issue.properties.denom_hash);
-  if (GNUNET_OK !=
-      plugin->insert_denomination_info (plugin->cls,
-                                        session,
-                                        &dki.denom_pub,
-                                        &dki.issue))
-  {
-    GNUNET_break(0);
-    destroy_denom_key_pair (dkp);
-    return NULL;
-  }
-  return dkp;
-}
-
-static struct TALER_Amount value;
-static struct TALER_Amount fee_withdraw;
-static struct TALER_Amount fee_deposit;
-static struct TALER_Amount fee_refresh;
-static struct TALER_Amount amount_with_fee;
-
-static void
-free_refresh_commit_coins_array(struct TALER_MINTDB_RefreshCommitCoin
-                                *commit_coins,
-                                unsigned int size)
-{
-  unsigned int cnt;
-  struct TALER_MINTDB_RefreshCommitCoin *ccoin;
-  struct TALER_RefreshLinkEncrypted *rlink;
-
-  for (cnt = 0; cnt < size; cnt++)
-  {
-    ccoin = &commit_coins[cnt];
-    GNUNET_free_non_null (ccoin->coin_ev);
-    rlink = (struct TALER_RefreshLinkEncrypted *) ccoin->refresh_link;
-    GNUNET_free_non_null (rlink);
-  }
-  GNUNET_free (commit_coins);
-}
-
-#define MELT_NEW_COINS 5
-
-static int
-test_refresh_commit_coins (struct TALER_MINTDB_Session *session,
-                           struct TALER_MINTDB_RefreshSession *refresh_session,
-                           const struct GNUNET_HashCode *session_hash)
-{
-  struct TALER_MINTDB_RefreshCommitCoin *commit_coins;
-  struct TALER_MINTDB_RefreshCommitCoin *ret_commit_coins;
-  struct TALER_MINTDB_RefreshCommitCoin *a_ccoin;
-  struct TALER_RefreshLinkEncrypted *a_rlink;
-  struct TALER_MINTDB_RefreshCommitCoin *b_ccoin;
-  struct TALER_RefreshLinkEncrypted *b_rlink;
-  size_t size;
-  unsigned int cnt;
-  uint16_t cnc_index;
-  int ret;
-
-  #define COIN_ENC_MAX_SIZE 512
-  ret = GNUNET_SYSERR;
-  ret_commit_coins = NULL;
-  commit_coins = GNUNET_new_array (MELT_NEW_COINS,
-                                   struct TALER_MINTDB_RefreshCommitCoin);
-  cnc_index = (uint16_t) GNUNET_CRYPTO_random_u32
-      (GNUNET_CRYPTO_QUALITY_WEAK, GNUNET_MIN (MELT_NEW_COINS, UINT16_MAX));
-  for (cnt=0; cnt < MELT_NEW_COINS; cnt++)
-  {
-    struct TALER_MINTDB_RefreshCommitCoin *ccoin;
-    struct TALER_RefreshLinkEncrypted *rlink;
-    ccoin = &commit_coins[cnt];
-    size = GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
-                                  COIN_ENC_MAX_SIZE);
-    rlink = GNUNET_malloc (sizeof (struct TALER_RefreshLinkEncrypted) + size);
-    ccoin->refresh_link = rlink;
-    ccoin->coin_ev_size = GNUNET_CRYPTO_random_u64
-        (GNUNET_CRYPTO_QUALITY_WEAK, COIN_ENC_MAX_SIZE);
-    ccoin->coin_ev = GNUNET_malloc (ccoin->coin_ev_size);
-    GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
-                                ccoin->coin_ev,
-                                ccoin->coin_ev_size);
-    rlink->blinding_key_enc_size = size;
-    RND_BLK (&rlink->coin_priv_enc);
-    rlink->blinding_key_enc = (const char *) &rlink[1];
-    GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
-                                (void *)rlink->blinding_key_enc,
-                                rlink->blinding_key_enc_size);
-  }
-  FAILIF (GNUNET_OK !=
-          plugin->insert_refresh_commit_coins (plugin->cls,
-                                               session,
-                                               session_hash,
-                                               cnc_index,
-                                               MELT_NEW_COINS,
-                                               commit_coins));
-  ret_commit_coins = GNUNET_new_array (MELT_NEW_COINS,
-                                       struct TALER_MINTDB_RefreshCommitCoin);
-  FAILIF (GNUNET_OK !=
-          plugin->get_refresh_commit_coins (plugin->cls,
-                                            session,
-                                            session_hash,
-                                            cnc_index,
-                                            MELT_NEW_COINS,
-                                            ret_commit_coins));
-  /* compare the refresh commit coin arrays */
-  for (cnt = 0; cnt < MELT_NEW_COINS; cnt++)
-  {
-    a_ccoin = &commit_coins[cnt];
-    b_ccoin = &ret_commit_coins[cnt];
-    FAILIF (a_ccoin->coin_ev_size != b_ccoin->coin_ev_size);
-    FAILIF (0 != memcmp (a_ccoin->coin_ev,
-                         a_ccoin->coin_ev,
-                         a_ccoin->coin_ev_size));
-    a_rlink = a_ccoin->refresh_link;
-    b_rlink = b_ccoin->refresh_link;
-    FAILIF (a_rlink->blinding_key_enc_size != b_rlink->blinding_key_enc_size);
-    FAILIF (0 != memcmp (a_rlink->blinding_key_enc,
-                         b_rlink->blinding_key_enc,
-                         a_rlink->blinding_key_enc_size));
-    FAILIF (0 != memcmp (a_rlink->coin_priv_enc,
-                         b_rlink->coin_priv_enc,
-                         sizeof (a_rlink->coin_priv_enc)));
-  }
-  ret = GNUNET_OK;
-
- drop:
-  if (NULL != ret_commit_coins)
-    free_refresh_commit_coins_array (ret_commit_coins, MELT_NEW_COINS);
-  if (NULL != commit_coins)
-    free_refresh_commit_coins_array (commit_coins, MELT_NEW_COINS);
-  return ret;
-}
-
-/**
- * Function to test melting of coins as part of a refresh session
- *
- * @param session the database session
- * @param refresh_session the refresh session
- * @return #GNUNET_OK if everything went well; #GNUNET_SYSERR if not
- */
-static int
-test_melting (struct TALER_MINTDB_Session *session)
-{
-#define MELT_OLD_COINS 10
-  struct TALER_MINTDB_RefreshSession refresh_session;
-  struct TALER_MINTDB_RefreshSession ret_refresh_session;
-  struct GNUNET_HashCode session_hash;
-  struct DenomKeyPair *dkp;
-  struct DenomKeyPair **new_dkp;
-  /* struct TALER_CoinPublicInfo *coins; */
-  struct TALER_MINTDB_RefreshMelt *melts;
-  struct TALER_DenominationPublicKey *new_denom_pubs;
-  struct TALER_DenominationPublicKey *ret_denom_pubs;
-  unsigned int cnt;
-  int ret;
-
-  ret = GNUNET_SYSERR;
-  RND_BLK (&refresh_session);
-  RND_BLK (&session_hash);
-  melts = NULL;
-  dkp = NULL;
-  new_dkp = NULL;
-  new_denom_pubs = NULL;
-  ret_denom_pubs = NULL;
-  /* create and test a refresh session */
-  refresh_session.num_oldcoins = MELT_OLD_COINS;
-  refresh_session.num_newcoins = 1;
-  refresh_session.noreveal_index = 1;
-  FAILIF (GNUNET_OK != plugin->create_refresh_session (plugin->cls,
-                                                       session,
-                                                       &session_hash,
-                                                       &refresh_session));
-  FAILIF (GNUNET_OK != plugin->get_refresh_session (plugin->cls,
-                                                    session,
-                                                    &session_hash,
-                                                    &ret_refresh_session));
-  FAILIF (0 != memcmp (&ret_refresh_session,
-                       &refresh_session,
-                       sizeof (refresh_session)));
-
-  /* create a denomination (value: 1; fraction: 100) */
-  dkp = create_denom_key_pair (512, session,
-                               &value,
-                               &fee_withdraw,
-                               &fee_deposit,
-                               &fee_refresh);
-  /* create MELT_OLD_COINS number of refresh melts */
-  melts = GNUNET_new_array (MELT_OLD_COINS, struct TALER_MINTDB_RefreshMelt);
-  for (cnt=0; cnt < MELT_OLD_COINS; cnt++)
-  {
-    RND_BLK (&melts[cnt].coin.coin_pub);
-    melts[cnt].coin.denom_sig.rsa_signature =
-        GNUNET_CRYPTO_rsa_sign (dkp->priv.rsa_private_key,
-                                &melts[cnt].coin.coin_pub,
-                                sizeof (melts[cnt].coin.coin_pub));
-    melts[cnt].coin.denom_pub = dkp->pub;
-    RND_BLK (&melts[cnt].coin_sig);
-    melts[cnt].session_hash = session_hash;
-    melts[cnt].amount_with_fee = amount_with_fee;
-    melts[cnt].melt_fee = fee_refresh;
-    FAILIF (GNUNET_OK != plugin->insert_refresh_melt (plugin->cls,
-                                                      session,
-                                                      cnt,
-                                                      &melts[cnt]));
-  }
-  for (cnt = 0; cnt < MELT_OLD_COINS; cnt++)
-  {
-    struct TALER_MINTDB_RefreshMelt ret_melt;
-    FAILIF (GNUNET_OK != plugin->get_refresh_melt (plugin->cls,
-                                                   session,
-                                                   &session_hash,
-                                                   cnt,
-                                                   &ret_melt));
-    FAILIF (0 != GNUNET_CRYPTO_rsa_signature_cmp
-            (ret_melt.coin.denom_sig.rsa_signature,
-             melts[cnt].coin.denom_sig.rsa_signature));
-    FAILIF (0 != memcmp (&ret_melt.coin.coin_pub,
-                         &melts[cnt].coin.coin_pub,
-                         sizeof (ret_melt.coin.coin_pub)));
-    FAILIF (0 != GNUNET_CRYPTO_rsa_public_key_cmp
-            (ret_melt.coin.denom_pub.rsa_public_key,
-             melts[cnt].coin.denom_pub.rsa_public_key));
-    FAILIF (0 != memcmp (&ret_melt.coin_sig,
-                         &melts[cnt].coin_sig,
-                         sizeof (ret_melt.coin_sig)));
-    FAILIF (0 != memcmp (&ret_melt.session_hash,
-                         &melts[cnt].session_hash,
-                         sizeof (ret_melt.session_hash)));
-    FAILIF (0 != TALER_amount_cmp (&ret_melt.amount_with_fee,
-                                   &melts[cnt].amount_with_fee));
-    FAILIF (0 != TALER_amount_cmp (&ret_melt.melt_fee,
-                                   &melts[cnt].melt_fee));
-    GNUNET_CRYPTO_rsa_signature_free (ret_melt.coin.denom_sig.rsa_signature);
-    GNUNET_CRYPTO_rsa_public_key_free (ret_melt.coin.denom_pub.rsa_public_key);
-  }
-  new_dkp = GNUNET_new_array (MELT_NEW_COINS, struct DenomKeyPair *);
-  new_denom_pubs = GNUNET_new_array (MELT_NEW_COINS,
-                                     struct TALER_DenominationPublicKey);
-  for (cnt=0; cnt < MELT_NEW_COINS; cnt++)
-  {
-    new_dkp[cnt] = create_denom_key_pair (128, session,
-                                          &value,
-                                          &fee_withdraw,
-                                          &fee_deposit,
-                                          &fee_refresh);
-    new_denom_pubs[cnt]=new_dkp[cnt]->pub;
-  }
-  FAILIF (GNUNET_OK != plugin->insert_refresh_order (plugin->cls,
-                                                       session,
-                                                       &session_hash,
-                                                       MELT_NEW_COINS,
-                                                       new_denom_pubs));
-  ret_denom_pubs = GNUNET_new_array (MELT_NEW_COINS,
-                                     struct TALER_DenominationPublicKey);
-  FAILIF (GNUNET_OK != plugin->get_refresh_order (plugin->cls,
-                                                  session,
-                                                  &session_hash,
-                                                  MELT_NEW_COINS,
-                                                  ret_denom_pubs));
-  for (cnt=0; cnt < MELT_NEW_COINS; cnt++)
-  {
-    FAILIF (0 != GNUNET_CRYPTO_rsa_public_key_cmp
-            (ret_denom_pubs[cnt].rsa_public_key,
-             new_denom_pubs[cnt].rsa_public_key));
-  }
-  FAILIF (GNUNET_OK !=
-          test_refresh_commit_coins (session,
-                                     &refresh_session,
-                                     &session_hash));
-
-  ret = GNUNET_OK;
-
- drop:
-  if (NULL != dkp)
-    destroy_denom_key_pair (dkp);
-  if (NULL != melts)
-  {
-    for (cnt = 0; cnt < MELT_OLD_COINS; cnt++)
-      GNUNET_CRYPTO_rsa_signature_free (melts[cnt].coin.denom_sig.rsa_signature);
-    GNUNET_free (melts);
-  }
-  for (cnt = 0;
-       (NULL != ret_denom_pubs) && (cnt < MELT_NEW_COINS)
-           && (NULL != ret_denom_pubs[cnt].rsa_public_key);
-       cnt++)
-    GNUNET_CRYPTO_rsa_public_key_free (ret_denom_pubs[cnt].rsa_public_key);
-  GNUNET_free_non_null (ret_denom_pubs);
-  GNUNET_free_non_null (new_denom_pubs);
-  for (cnt = 0;
-       (NULL != new_dkp) && (cnt < MELT_NEW_COINS) && (NULL != new_dkp[cnt]);
-       cnt++)
-    destroy_denom_key_pair (new_dkp[cnt]);
-  GNUNET_free_non_null (new_dkp);
-  return ret;
-}
-
-
-/**
- * Callback that should never be called.
- */
-static void
-cb_wt_never (void *cls,
-             const struct TALER_MerchantPublicKeyP *merchant_pub,
-             const struct GNUNET_HashCode *h_wire,
-             const struct GNUNET_HashCode *h_contract,
-             uint64_t transaction_id,
-             const struct TALER_CoinSpendPublicKeyP *coin_pub,
-             const struct TALER_Amount *coin_value,
-             const struct TALER_Amount *coin_fee)
-{
-  GNUNET_assert (0); /* this statement should be unreachable */
-}
-
-
-/**
- * Callback that should never be called.
- */
-static void
-cb_wtid_never (void *cls,
-               const struct TALER_WireTransferIdentifierRawP *wtid,
-               const struct TALER_Amount *coin_contribution,
-               const struct TALER_Amount *coin_fee,
-               struct GNUNET_TIME_Absolute execution_time)
-{
-  GNUNET_assert (0);
-}
-
-
-static struct TALER_MerchantPublicKeyP merchant_pub_wt;
-static struct GNUNET_HashCode h_wire_wt;
-static struct GNUNET_HashCode h_contract_wt;
-static uint64_t transaction_id_wt;
-static struct TALER_CoinSpendPublicKeyP coin_pub_wt;
-static struct TALER_Amount coin_value_wt;
-static struct TALER_Amount coin_fee_wt;
-static struct TALER_Amount transfer_value_wt;
-static struct GNUNET_TIME_Absolute execution_time_wt;
-static struct TALER_WireTransferIdentifierRawP wtid_wt;
-
-
-/**
- * Callback that should be called with the WT data.
- */
-static void
-cb_wt_check (void *cls,
-             const struct TALER_MerchantPublicKeyP *merchant_pub,
-             const struct GNUNET_HashCode *h_wire,
-             const struct GNUNET_HashCode *h_contract,
-             uint64_t transaction_id,
-             const struct TALER_CoinSpendPublicKeyP *coin_pub,
-             const struct TALER_Amount *coin_value,
-             const struct TALER_Amount *coin_fee)
-{
-  GNUNET_assert (cls == &cb_wt_never);
-  GNUNET_assert (0 == memcmp (merchant_pub,
-                              &merchant_pub_wt,
-                              sizeof (struct TALER_MerchantPublicKeyP)));
-  GNUNET_assert (0 == memcmp (h_wire,
-                              &h_wire_wt,
-                              sizeof (struct GNUNET_HashCode)));
-  GNUNET_assert (0 == memcmp (h_contract,
-                              &h_contract_wt,
-                              sizeof (struct GNUNET_HashCode)));
-  GNUNET_assert (transaction_id == transaction_id_wt);
-  GNUNET_assert (0 == memcmp (coin_pub,
-                              &coin_pub_wt,
-                              sizeof (struct TALER_CoinSpendPublicKeyP)));
-  GNUNET_assert (0 == TALER_amount_cmp (coin_value,
-                                        &coin_value_wt));
-  GNUNET_assert (0 == TALER_amount_cmp (coin_fee,
-                                        &coin_fee_wt));
-}
-
-
-/**
- * Callback that should be called with the WT data.
- */
-static void
-cb_wtid_check (void *cls,
-               const struct TALER_WireTransferIdentifierRawP *wtid,
-               const struct TALER_Amount *coin_contribution,
-               const struct TALER_Amount *coin_fee,
-               struct GNUNET_TIME_Absolute execution_time)
-{
-  GNUNET_assert (cls == &cb_wtid_never);
-  GNUNET_assert (0 == memcmp (wtid,
-                              &wtid_wt,
-                              sizeof (struct TALER_WireTransferIdentifierRawP)));
-  GNUNET_assert (execution_time.abs_value_us ==
-                 execution_time_wt.abs_value_us);
-  GNUNET_assert (0 == TALER_amount_cmp (coin_contribution,
-                                        &coin_value_wt));
-  GNUNET_assert (0 == TALER_amount_cmp (coin_fee,
-                                        &coin_fee_wt));
-}
-
-
-/**
- * Main function that will be run by the scheduler.
- *
- * @param cls closure
- * @param args remaining command-line arguments
- * @param cfgfile name of the configuration file used (for saving, can be NULL!)
- * @param cfg configuration
- */
-static void
-run (void *cls,
-     char *const *args,
-     const char *cfgfile,
-     const struct GNUNET_CONFIGURATION_Handle *cfg)
-{
-  struct TALER_MINTDB_Session *session;
-  struct TALER_ReservePublicKeyP reserve_pub;
-  struct DenomKeyPair *dkp;
-  struct TALER_MINTDB_CollectableBlindcoin cbc;
-  struct TALER_MINTDB_CollectableBlindcoin cbc2;
-  struct TALER_MINTDB_ReserveHistory *rh;
-  struct TALER_MINTDB_ReserveHistory *rh_head;
-  struct TALER_MINTDB_BankTransfer *bt;
-  struct TALER_MINTDB_CollectableBlindcoin *withdraw;
-  struct TALER_MINTDB_Deposit deposit;
-  struct TALER_MINTDB_Deposit deposit2;
-  struct TALER_WireTransferIdentifierRawP wtid;
-  json_t *wire;
-  json_t *just;
-  const char * const json_wire_str =
-      "{ \"type\":\"SEPA\", \
-\"IBAN\":\"DE67830654080004822650\",                    \
-\"name\":\"GNUnet e.V.\",                               \
-\"bic\":\"GENODEF1SLR\",                                 \
-\"edate\":\"1449930207000\",                                \
-\"r\":123456789,                                     \
-\"address\": \"foobar\"}";
-  unsigned int cnt;
-
-  dkp = NULL;
-  rh = NULL;
-  wire = NULL;
-  session = NULL;
-  ZR_BLK (&cbc);
-  ZR_BLK (&cbc2);
-  if (NULL ==
-      (plugin = TALER_MINTDB_plugin_load (cfg)))
-  {
-    result = 1;
-    return;
-  }
-  if (GNUNET_OK !=
-      plugin->create_tables (plugin->cls,
-                             GNUNET_YES))
-  {
-    result = 2;
-    goto drop;
-  }
-  if (NULL ==
-      (session = plugin->get_session (plugin->cls,
-                                      GNUNET_YES)))
-  {
-    result = 3;
-    goto drop;
-  }
-  RND_BLK (&reserve_pub);
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_string_to_amount (CURRENCY ":1.000010",
-                                         &value));
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_string_to_amount (CURRENCY ":0.000010",
-                                         &fee_withdraw));
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_string_to_amount (CURRENCY ":0.000010",
-                                         &fee_deposit));
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_string_to_amount (CURRENCY ":0.000010",
-                                         &fee_refresh));
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_string_to_amount (CURRENCY ":1.000010",
-                                         &amount_with_fee));
-
-  result = 4;
-  just = json_loads ("{ \"justification\":\"1\" }", 0, NULL);
-  FAILIF (GNUNET_OK !=
-          plugin->reserves_in_insert (plugin->cls,
-                                      session,
-                                      &reserve_pub,
-                                      &value,
-                                      GNUNET_TIME_absolute_get (),
-				      just));
-  json_decref (just);
-  FAILIF (GNUNET_OK !=
-          check_reserve (session,
-                         &reserve_pub,
-                         value.value,
-                         value.fraction,
-                         value.currency));
-  just = json_loads ("{ \"justification\":\"2\" }", 0, NULL);
-  FAILIF (GNUNET_OK !=
-          plugin->reserves_in_insert (plugin->cls,
-                                      session,
-                                      &reserve_pub,
-                                      &value,
-                                      GNUNET_TIME_absolute_get (),
-				      just));
-  json_decref (just);
-  FAILIF (GNUNET_OK !=
-          check_reserve (session,
-                         &reserve_pub,
-                         value.value * 2,
-                         value.fraction * 2,
-                         value.currency));
-  dkp = create_denom_key_pair (1024, session,
-                               &value,
-                               &fee_withdraw,
-                               &fee_deposit,
-                               &fee_refresh);
-  RND_BLK(&cbc.h_coin_envelope);
-  RND_BLK(&cbc.reserve_sig);
-  cbc.denom_pub = dkp->pub;
-  cbc.sig.rsa_signature
-    = GNUNET_CRYPTO_rsa_sign (dkp->priv.rsa_private_key,
-                              &cbc.h_coin_envelope,
-                              sizeof (cbc.h_coin_envelope));
-  cbc.reserve_pub = reserve_pub;
-  cbc.amount_with_fee = value;
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_amount_get_zero (CURRENCY, &cbc.withdraw_fee));
-  FAILIF (GNUNET_OK !=
-          plugin->insert_withdraw_info (plugin->cls,
-                                        session,
-                                        &cbc));
-  FAILIF (GNUNET_OK !=
-          check_reserve (session,
-                         &reserve_pub,
-                         value.value,
-                         value.fraction,
-                         value.currency));
-  FAILIF (GNUNET_YES !=
-          plugin->get_withdraw_info (plugin->cls,
-                                     session,
-                                     &cbc.h_coin_envelope,
-                                     &cbc2));
-  FAILIF (NULL == cbc2.denom_pub.rsa_public_key);
-  FAILIF (0 != memcmp (&cbc2.reserve_sig,
-                       &cbc.reserve_sig,
-                       sizeof (cbc2.reserve_sig)));
-  FAILIF (0 != memcmp (&cbc2.reserve_pub,
-                       &cbc.reserve_pub,
-                       sizeof (cbc2.reserve_pub)));
-  FAILIF (GNUNET_OK !=
-          GNUNET_CRYPTO_rsa_verify (&cbc.h_coin_envelope,
-                                    cbc2.sig.rsa_signature,
-                                    dkp->pub.rsa_public_key));
-  rh = plugin->get_reserve_history (plugin->cls,
-                                    session,
-                                    &reserve_pub);
-  FAILIF (NULL == rh);
-  rh_head = rh;
-  for (cnt=0; NULL != rh_head; rh_head=rh_head->next, cnt++)
-  {
-    switch (rh_head->type)
-    {
-    case TALER_MINTDB_RO_BANK_TO_MINT:
-      bt = rh_head->details.bank;
-      FAILIF (0 != memcmp (&bt->reserve_pub,
-                           &reserve_pub,
-                           sizeof (reserve_pub)));
-      /* this is the amount we trasferred twice*/
-      FAILIF (1 != bt->amount.value);
-      FAILIF (10 != bt->amount.fraction);
-      FAILIF (0 != strcmp (CURRENCY, bt->amount.currency));
-      FAILIF (NULL == bt->wire);
-      break;
-    case TALER_MINTDB_RO_WITHDRAW_COIN:
-      withdraw = rh_head->details.withdraw;
-      FAILIF (0 != memcmp (&withdraw->reserve_pub,
-                           &reserve_pub,
-                           sizeof (reserve_pub)));
-      FAILIF (0 != memcmp (&withdraw->h_coin_envelope,
-                           &cbc.h_coin_envelope,
-                           sizeof (cbc.h_coin_envelope)));
-      break;
-    }
-  }
-  FAILIF (3 != cnt);
-  /* Tests for deposits */
-  memset (&deposit, 0, sizeof (deposit));
-  RND_BLK (&deposit.coin.coin_pub);
-  deposit.coin.denom_pub = dkp->pub;
-  deposit.coin.denom_sig = cbc.sig;
-  RND_BLK (&deposit.csig);
-  RND_BLK (&deposit.merchant_pub);
-  RND_BLK (&deposit.h_contract);
-  RND_BLK (&deposit.h_wire);
-  wire = json_loads (json_wire_str, 0, NULL);
-  deposit.wire = wire;
-  deposit.transaction_id =
-      GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK, UINT64_MAX);
-  deposit.amount_with_fee = value;
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_amount_get_zero (CURRENCY, &deposit.deposit_fee));
-  FAILIF (GNUNET_OK !=
-          plugin->insert_deposit (plugin->cls,
-                                  session, &deposit));
-  FAILIF (GNUNET_YES !=
-          plugin->have_deposit (plugin->cls,
-                                session,
-                                &deposit));
-  deposit2 = deposit;
-  deposit2.transaction_id++;     /* should fail if transaction id is different */
-  FAILIF (GNUNET_NO !=
-          plugin->have_deposit (plugin->cls,
-                                session,
-                                &deposit2));
-  deposit2.transaction_id = deposit.transaction_id;
-  RND_BLK (&deposit2.merchant_pub); /* should fail if merchant is different */
-  FAILIF (GNUNET_NO !=
-          plugin->have_deposit (plugin->cls,
-                                session,
-                                &deposit2));
-  deposit2.merchant_pub = deposit.merchant_pub;
-  RND_BLK (&deposit2.coin.coin_pub); /* should fail if coin is different */
-  FAILIF (GNUNET_NO !=
-          plugin->have_deposit (plugin->cls,
-                                session,
-                                &deposit2));
-  FAILIF (GNUNET_OK != test_melting (session));
-
-  /* setup values for wire transfer aggregation data */
-  memset (&wtid, 42, sizeof (wtid));
-  memset (&merchant_pub_wt, 43, sizeof (merchant_pub_wt));
-  memset (&h_wire_wt, 44, sizeof (h_wire_wt));
-  memset (&h_contract_wt, 45, sizeof (h_contract_wt));
-  memset (&coin_pub_wt, 46, sizeof (coin_pub_wt));
-  transaction_id_wt = 47;
-  execution_time_wt = GNUNET_TIME_absolute_get ();
-  memset (&merchant_pub_wt, 48, sizeof (merchant_pub_wt));
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_string_to_amount (CURRENCY "KUDOS:1.000010",
-                                         &coin_value_wt));
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_string_to_amount (CURRENCY "KUDOS:0.000010",
-                                         &coin_fee_wt));
-  GNUNET_assert (GNUNET_OK ==
-                 TALER_string_to_amount (CURRENCY "KUDOS:1.000000",
-                                         &transfer_value_wt));
-
-  FAILIF (GNUNET_NO !=
-          plugin->lookup_wire_transfer (plugin->cls,
-                                        session,
-                                        &wtid_wt,
-                                        &cb_wt_never,
-                                        NULL));
-  FAILIF (GNUNET_NO !=
-          plugin->wire_lookup_deposit_wtid (plugin->cls,
-                                            session,
-                                            &h_contract_wt,
-                                            &h_wire_wt,
-                                            &coin_pub_wt,
-                                            &merchant_pub_wt,
-                                            transaction_id_wt,
-                                            &cb_wtid_never,
-                                            NULL));
-  /* insert WT data */
-  FAILIF (GNUNET_OK !=
-          plugin->insert_aggregation_tracking (plugin->cls,
-                                               session,
-                                               &wtid_wt,
-                                               &merchant_pub_wt,
-                                               &h_wire_wt,
-                                               &h_contract_wt,
-                                               transaction_id_wt,
-                                               execution_time_wt,
-                                               &coin_pub_wt,
-                                               &coin_value_wt,
-                                               &coin_fee_wt));
-  FAILIF (GNUNET_OK !=
-          plugin->lookup_wire_transfer (plugin->cls,
-                                        session,
-                                        &wtid_wt,
-                                        &cb_wt_check,
-                                        &cb_wt_never));
-  FAILIF (GNUNET_OK !=
-          plugin->wire_lookup_deposit_wtid (plugin->cls,
-                                            session,
-                                            &h_contract_wt,
-                                            &h_wire_wt,
-                                            &coin_pub_wt,
-                                            &merchant_pub_wt,
-                                            transaction_id_wt,
-                                            &cb_wtid_check,
-                                            &cb_wtid_never));
-  result = 0;
-
- drop:
-  if (NULL != wire)
-    json_decref (wire);
-  if (NULL != rh)
-    plugin->free_reserve_history (plugin->cls,
-                                  rh);
-  rh = NULL;
-  if (NULL != session)
-    GNUNET_break (GNUNET_OK ==
-                  plugin->drop_temporary (plugin->cls,
-                                          session));
-  if (NULL != dkp)
-    destroy_denom_key_pair (dkp);
-  if (NULL != cbc.sig.rsa_signature)
-    GNUNET_CRYPTO_rsa_signature_free (cbc.sig.rsa_signature);
-  if (NULL != cbc2.denom_pub.rsa_public_key)
-    GNUNET_CRYPTO_rsa_public_key_free (cbc2.denom_pub.rsa_public_key);
-  if (NULL != cbc2.sig.rsa_signature)
-    GNUNET_CRYPTO_rsa_signature_free (cbc2.sig.rsa_signature);
-  dkp = NULL;
-  TALER_MINTDB_plugin_unload (plugin);
-  plugin = NULL;
-}
-
-
-int
-main (int argc,
-      char *const argv[])
-{
-   static const struct GNUNET_GETOPT_CommandLineOption options[] = {
-    GNUNET_GETOPT_OPTION_END
-  };
-   char *argv2[] = {
-     "test-mint-db-<plugin_name>", /* will be replaced later */
-     "-c", "test-mint-db-<plugin_name>.conf", /* will be replaced later */
-     NULL,
-   };
-   const char *plugin_name;
-   char *config_filename;
-   char *testname;
-
-   result = -1;
-   if (NULL == (plugin_name = strrchr (argv[0], (int) '-')))
-   {
-     GNUNET_break (0);
-     return -1;
-   }
-   plugin_name++;
-   (void) GNUNET_asprintf (&testname,
-                           "test-mint-db-%s", plugin_name);
-   (void) GNUNET_asprintf (&config_filename,
-                           "%s.conf", testname);
-   argv2[0] = argv[0];
-   argv2[2] = config_filename;
-  if (GNUNET_OK !=
-      GNUNET_PROGRAM_run ((sizeof (argv2)/sizeof (char *)) - 1, argv2,
-                          testname,
-                          "Test cases for mint database helper functions.",
-                          options, &run, NULL))
-  {
-    GNUNET_free (config_filename);
-    GNUNET_free (testname);
-    return 3;
-  }
-  GNUNET_free (config_filename);
-  GNUNET_free (testname);
-  return result;
-}
diff --git a/src/mintdb/test_mintdb_deposits.c b/src/mintdb/test_mintdb_deposits.c
deleted file mode 100644
index 3ce0a35a5..000000000
--- a/src/mintdb/test_mintdb_deposits.c
+++ /dev/null
@@ -1,152 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014 GNUnet e.V.
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint/test_mint_deposits.c
- * @brief testcase for mint deposits
- * @author Sree Harsha Totakura <sreeharsha@totakura.in>
- */
-#include "platform.h"
-#include <libpq-fe.h>
-#include <gnunet/gnunet_util_lib.h>
-#include "taler_pq_lib.h"
-#include "taler_mintdb_lib.h"
-#include "taler_mintdb_plugin.h"
-
-#define MINT_CURRENCY "EUR"
-
-#define DB_URI "postgres:///taler"
-
-#define break_db_err(result) do { \
-    GNUNET_break(0); \
-    GNUNET_log (GNUNET_ERROR_TYPE_ERROR, "Database failure: %s\n", PQresultErrorMessage (result)); \
-  } while (0)
-
-/**
- * Shorthand for exit jumps.
- */
-#define EXITIF(cond)                                              \
-  do {                                                            \
-    if (cond) { GNUNET_break (0); goto EXITIF_exit; }             \
-  } while (0)
-
-
-/**
- * Should we not interact with a temporary table?
- */
-static int persistent;
-
-/**
- * Testcase result
- */
-static int result;
-
-/**
- * The plugin.
- */
-static struct TALER_MINTDB_Plugin *plugin;
-
-/**
- * Main function that will be run by the scheduler.
- *
- * @param cls closure
- * @param args remaining command-line arguments
- * @param cfgfile name of the configuration file used (for saving, can be NULL!)
- * @param cfg configuration
- */
-static void
-run (void *cls,
-     char *const *args,
-     const char *cfgfile,
-     const struct GNUNET_CONFIGURATION_Handle *cfg)
-{
-  static const char wire[] = "{"
-      "\"type\":\"SEPA\","
-      "\"IBAN\":\"DE67830654080004822650\","
-      "\"NAME\":\"GNUNET E.V\","
-      "\"BIC\":\"GENODEF1SRL\""
-      "}";
-  struct TALER_MINTDB_Deposit *deposit;
-  uint64_t transaction_id;
-  struct TALER_MINTDB_Session *session;
-
-  deposit = NULL;
-  EXITIF (NULL == (plugin = TALER_MINTDB_plugin_load (cfg)));
-  EXITIF (GNUNET_OK !=
-          plugin->create_tables (plugin->cls,
-                                 ! persistent));
-  session = plugin->get_session (plugin->cls,
-                                 ! persistent);
-  EXITIF (NULL == session);
-  deposit = GNUNET_malloc (sizeof (struct TALER_MINTDB_Deposit) + sizeof (wire));
-  /* Makeup a random coin public key */
-  GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
-                              deposit,
-                              sizeof (struct TALER_MINTDB_Deposit));
-  /* Makeup a random 64bit transaction ID */
-  transaction_id = GNUNET_CRYPTO_random_u64 (GNUNET_CRYPTO_QUALITY_WEAK,
-                                             UINT64_MAX);
-  deposit->transaction_id = GNUNET_htonll (transaction_id);
-  /* Random amount */
-  deposit->amount_with_fee.value =
-      htonl (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX));
-  deposit->amount_with_fee.fraction =
-      htonl (GNUNET_CRYPTO_random_u32 (GNUNET_CRYPTO_QUALITY_WEAK, UINT32_MAX));
-  GNUNET_assert (strlen (MINT_CURRENCY) < sizeof (deposit->amount_with_fee.currency));
-  strcpy (deposit->amount_with_fee.currency, MINT_CURRENCY);
-  /* Copy wireformat */
-  deposit->wire = json_loads (wire, 0, NULL);
-  EXITIF (GNUNET_OK !=
-          plugin->insert_deposit (plugin->cls,
-                                  session,
-                                  deposit));
-  EXITIF (GNUNET_OK !=
-          plugin->have_deposit (plugin->cls,
-                                session,
-                                deposit));
-  result = GNUNET_OK;
-
- EXITIF_exit:
-  GNUNET_free_non_null (deposit);
-  if (NULL != plugin)
-  {
-    TALER_MINTDB_plugin_unload (plugin);
-    plugin = NULL;
-  }
-}
-
-
-int
-main (int argc,
-      char *const argv[])
-{
-  static const struct GNUNET_GETOPT_CommandLineOption options[] = {
-    {'T', "persist", NULL,
-     gettext_noop ("Use a persistent database table instead of a temporary one"),
-     GNUNET_NO, &GNUNET_GETOPT_set_one, &persistent},
-    GNUNET_GETOPT_OPTION_END
-  };
-
-
-  persistent = GNUNET_NO;
-  result = GNUNET_SYSERR;
-  if (GNUNET_OK !=
-      GNUNET_PROGRAM_run (argc, argv,
-                          "test-mint-deposits",
-                          "testcase for mint deposits",
-                          options, &run, NULL))
-    return 3;
-  return (GNUNET_OK == result) ? 0 : 1;
-}
diff --git a/src/mintdb/test_mintdb_keyio.c b/src/mintdb/test_mintdb_keyio.c
deleted file mode 100644
index aa1ba2f20..000000000
--- a/src/mintdb/test_mintdb_keyio.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
-  This file is part of TALER
-  Copyright (C) 2014 GNUnet e. V. (and other contributing authors)
-
-  TALER is free software; you can redistribute it and/or modify it under the
-  terms of the GNU General Public License as published by the Free Software
-  Foundation; either version 3, or (at your option) any later version.
-
-  TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-  A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  You should have received a copy of the GNU General Public License along with
-  TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-*/
-/**
- * @file mint/test_mint_common.c
- * @brief test cases for some functions in mint/mint_common.c
- * @author Sree Harsha Totakura <sreeharsha@totakura.in>
- */
-#include "platform.h"
-#include "gnunet/gnunet_util_lib.h"
-#include "taler_signatures.h"
-#include "taler_mintdb_lib.h"
-
-#define RSA_KEY_SIZE 1024
-
-
-#define EXITIF(cond)                                              \
-  do {                                                            \
-    if (cond) { GNUNET_break (0); goto EXITIF_exit; }             \
-  } while (0)
-
-
-int
-main (int argc,
-      const char *const argv[])
-{
-  struct TALER_MINTDB_DenominationKeyIssueInformation dki;
-  char *enc;
-  size_t enc_size;
-  struct TALER_MINTDB_DenominationKeyIssueInformation dki_read;
-  char *enc_read;
-  size_t enc_read_size;
-  char *tmpfile;
-  int ret;
-
-  ret = 1;
-  enc = NULL;
-  enc_read = NULL;
-  tmpfile = NULL;
-  dki.denom_priv.rsa_private_key = NULL;
-  dki_read.denom_priv.rsa_private_key = NULL;
-  GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK,
-                              &dki.issue.signature,
-                              sizeof (struct TALER_MasterSignatureP));
-  dki.denom_priv.rsa_private_key
-    = GNUNET_CRYPTO_rsa_private_key_create (RSA_KEY_SIZE);
-  enc_size = GNUNET_CRYPTO_rsa_private_key_encode (dki.denom_priv.rsa_private_key,
-                                                   &enc);
-  EXITIF (NULL == (tmpfile = GNUNET_DISK_mktemp ("test_mint_common")));
-  EXITIF (GNUNET_OK != TALER_MINTDB_denomination_key_write (tmpfile, &dki));
-  EXITIF (GNUNET_OK != TALER_MINTDB_denomination_key_read (tmpfile, &dki_read));
-  enc_read_size = GNUNET_CRYPTO_rsa_private_key_encode (dki_read.denom_priv.rsa_private_key,
-                                                        &enc_read);
-  EXITIF (enc_size != enc_read_size);
-  EXITIF (0 != memcmp (enc,
-                       enc_read,
-                       enc_size));
-  ret = 0;
-
-  EXITIF_exit:
-  GNUNET_free_non_null (enc);
-  if (NULL != tmpfile)
-  {
-    (void) unlink (tmpfile);
-    GNUNET_free (tmpfile);
-  }
-  GNUNET_free_non_null (enc_read);
-  if (NULL != dki.denom_priv.rsa_private_key)
-    GNUNET_CRYPTO_rsa_private_key_free (dki.denom_priv.rsa_private_key);
-  if (NULL != dki_read.denom_priv.rsa_private_key)
-    GNUNET_CRYPTO_rsa_private_key_free (dki_read.denom_priv.rsa_private_key);
-  return ret;
-}
diff --git a/src/mintdb/test_perf_taler_mintdb.c b/src/mintdb/test_perf_taler_mintdb.c
deleted file mode 100644
index 789a0dd4f..000000000
--- a/src/mintdb/test_perf_taler_mintdb.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/*
-   This file is part of TALER
-   Copyright (C) 2014, 2015 GNUnet e.V.
-
-   TALER is free software; you can redistribute it and/or modify it under the
-   terms of the GNU General Public License as published by the Free Software
-   Foundation; either version 3, or (at your option) any later version.
-
-   TALER is distributed in the hope that it will be useful, but WITHOUT ANY
-   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License along with
-   TALER; see the file COPYING.  If not, If not, see <http://www.gnu.org/licenses/>
-   */
-/**
- * @file mintdb/test_perf_taler_mintdb.c
- * @brief Mint database performance analysis
- * @author Nicolas Fournier
- */
-#include "platform.h"
-#include "perf_taler_mintdb_interpreter.h"
-#include "perf_taler_mintdb_init.h"
-
-
-#define NB_DENOMINATION_INIT  2
-#define NB_DENOMINATION_SAVE  2
-
-#define NB_RESERVE_INIT   4
-#define NB_RESERVE_SAVE   1
-
-#define NB_DEPOSIT_INIT   1
-#define NB_DEPOSIT_SAVE   1
-
-#define NB_WITHDRAW_INIT  1
-#define NB_WITHDRAW_SAVE  1
-
-/**
- * Allocate, copies and free all the data used in the interpreter
- * Used to check for memory leaks
- */
-static void
-test_allocate ()
-{
-  struct TALER_MINTDB_DenominationKeyIssueInformation *dki, *dki_copy;
-  struct PERF_TALER_MINTDB_Reserve *reserve, *reserve_copy;
-  struct PERF_TALER_MINTDB_Coin *coin, *coin_copy;
-  struct TALER_MINTDB_Deposit *deposit, *deposit_copy;
-
-  dki = PERF_TALER_MINTDB_denomination_init ();
-  reserve = PERF_TALER_MINTDB_reserve_init ();
-  coin = PERF_TALER_MINTDB_coin_init (dki,
-                                      reserve);
-  deposit = PERF_TALER_MINTDB_deposit_init (coin);
-
-  dki_copy = PERF_TALER_MINTDB_denomination_copy (dki);
-  reserve_copy = PERF_TALER_MINTDB_reserve_copy (reserve);
-  coin_copy = PERF_TALER_MINTDB_coin_copy (coin);
-  deposit_copy = PERF_TALER_MINTDB_deposit_copy (deposit);
-
-  PERF_TALER_MINTDB_denomination_free (dki);
-  PERF_TALER_MINTDB_denomination_free (dki_copy);
-  PERF_TALER_MINTDB_reserve_free (reserve);
-  PERF_TALER_MINTDB_reserve_free (reserve_copy);
-  PERF_TALER_MINTDB_coin_free (coin);
-  PERF_TALER_MINTDB_coin_free (coin_copy);
-  PERF_TALER_MINTDB_deposit_free (deposit);
-  PERF_TALER_MINTDB_deposit_free (deposit_copy);
-}
-
-/**
- * Runs the performances tests for the mint database
- * and logs the results using Gauger
- */
-int
-main (int argc, char ** argv)
-{
-  int ret = 0;
-  struct PERF_TALER_MINTDB_Cmd init[] =
-  {
-    PERF_TALER_MINTDB_INIT_CMD_END ("init")
-  };
-  struct PERF_TALER_MINTDB_Cmd benchmark[] =
-  {
-    // Denomination used to create coins
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("00 - Start of interpreter"),
-
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("01 - denomination loop",
-                                     NB_DENOMINATION_INIT),
-    PERF_TALER_MINTDB_INIT_CMD_START_TRANSACTION ("01 - start transaction"),
-    PERF_TALER_MINTDB_INIT_CMD_CREATE_DENOMINATION ("01 - denomination"),
-    PERF_TALER_MINTDB_INIT_CMD_INSERT_DENOMINATION ("01 - insert",
-                                                    "01 - denomination"),
-    PERF_TALER_MINTDB_INIT_CMD_COMMIT_TRANSACTION ("01 - commit transaction"),
-    PERF_TALER_MINTDB_INIT_CMD_SAVE_ARRAY ("01 - save denomination",
-                                           "01 - denomination loop",
-                                           "01 - denomination",
-                                           NB_DENOMINATION_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("01 - denomination loop end",
-                                         "01 - denomination loop"),
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("01 - init denomination complete"),
-    // End of initialization
-    // Reserve initialization
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("02 - init reserve loop",
-                                     NB_RESERVE_INIT),
-
-    PERF_TALER_MINTDB_INIT_CMD_CREATE_RESERVE ("02 - reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_INSERT_RESERVE ("02 - insert",
-                                               "02 - reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_SAVE_ARRAY ("02 - save reserve",
-                                           "02 - init reserve loop",
-                                           "02 - reserve",
-                                           NB_RESERVE_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("02 - init reserve end loop",
-                                         "02 - init reserve loop"),
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("02 - reserve init complete"),
-    // End reserve init
-    // Withdrawal initialization
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("03 - init withdraw loop",
-                                     NB_WITHDRAW_INIT),
-    PERF_TALER_MINTDB_INIT_CMD_START_TRANSACTION ("03 - start transaction"),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("03 - denomination load",
-                                           "03 - init withdraw loop",
-                                           "01 - save denomination"),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("03 - reserve load",
-                                           "03 - init withdraw loop",
-                                           "02 - save reserve"),
-    PERF_TALER_MINTDB_INIT_CMD_CREATE_WITHDRAW ("03 - withdraw",
-                                                "03 - denomination load",
-                                                "03 - reserve load"),
-    PERF_TALER_MINTDB_INIT_CMD_INSERT_WITHDRAW ("03 - insert withdraw",
-                                                "03 - withdraw"),
-    PERF_TALER_MINTDB_INIT_CMD_COMMIT_TRANSACTION ("03 - commit transaction"),
-    PERF_TALER_MINTDB_INIT_CMD_SAVE_ARRAY ("03 - coin array",
-                                           "03 - init withdraw loop",
-                                           "03 - withdraw",
-                                           NB_WITHDRAW_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("03 - withdraw init end loop",
-                                         "03 - init withdraw loop"),
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("03 - withdraw init complete"),
-    //End of withdrawal initialization
-    //Deposit initialization
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("04 - time start"),
-    PERF_TALER_MINTDB_INIT_CMD_LOOP ("04 - deposit init loop",
-                                     NB_DEPOSIT_INIT),
-    PERF_TALER_MINTDB_INIT_CMD_START_TRANSACTION ("04 - start transaction"),
-    PERF_TALER_MINTDB_INIT_CMD_LOAD_ARRAY ("04 - coin load",
-                                           "04 - deposit init loop",
-                                           "03 - coin array"),
-    PERF_TALER_MINTDB_INIT_CMD_CREATE_DEPOSIT ("04 - deposit",
-                                               "04 - coin load"),
-    PERF_TALER_MINTDB_INIT_CMD_INSERT_DEPOSIT ("04 - insert deposit",
-                                               "04 - deposit"),
-    PERF_TALER_MINTDB_INIT_CMD_COMMIT_TRANSACTION ("04 - commit transaction"),
-    PERF_TALER_MINTDB_INIT_CMD_SAVE_ARRAY ("04 - deposit array",
-                                           "04 - deposit init loop",
-                                           "04 - deposit",
-                                           NB_DEPOSIT_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_END_LOOP ("04 - deposit init loop end",
-                                         "04 - deposit init loop"),
-    PERF_TALER_MINTDB_INIT_CMD_GET_TIME ("04 - time stop"),
-    PERF_TALER_MINTDB_INIT_CMD_GAUGER ("04 - gauger",
-                                       "04 - time start",
-                                       "04 - time stop",
-                                       "TEST",
-                                       "time to insert a deposit",
-                                       "deposit/sec",
-                                       NB_DEPOSIT_SAVE),
-    PERF_TALER_MINTDB_INIT_CMD_DEBUG ("04 - deposit init complete"),
-    // End of deposit initialization
-    PERF_TALER_MINTDB_INIT_CMD_END ("end"),
-  };
-  
-  test_allocate ();
-  ret = PERF_TALER_MINTDB_run_benchmark ("test-perf-taler-mintdb",
-                                         "./test-mint-db-postgres.conf",
-                                         init,
-                                         benchmark);
-  if (GNUNET_SYSERR == ret)
-    return 1;
-  return 0;
-}
diff --git a/src/util/os_installation.c b/src/util/os_installation.c
index 0eab118fe..757dba4b6 100644
--- a/src/util/os_installation.c
+++ b/src/util/os_installation.c
@@ -394,7 +394,7 @@ os_get_taler_path ()
   if (NULL != (ret = get_path_from_proc_maps ()))
     return ret;
   /* try path *first*, before /proc/exe, as /proc/exe can be wrong */
-  if (NULL != (ret = get_path_from_PATH ("taler-mint-httpd")))
+  if (NULL != (ret = get_path_from_PATH ("taler-exchange-httpd")))
     return ret;
   if (NULL != (ret = get_path_from_proc_exe ()))
     return ret;
@@ -409,7 +409,7 @@ os_get_taler_path ()
   if (NULL != (ret = get_path_from_NSGetExecutablePath ()))
     return ret;
 #endif
-  if (NULL != (ret = get_path_from_PATH ("taler-mint-httpd")))
+  if (NULL != (ret = get_path_from_PATH ("taler-exchange-httpd")))
     return ret;
   /* other attempts here */
   LOG (GNUNET_ERROR_TYPE_ERROR,
diff --git a/src/util/wireformats.c b/src/util/wireformats.c
index cd5a9c3d4..a69e8a093 100644
--- a/src/util/wireformats.c
+++ b/src/util/wireformats.c
@@ -421,7 +421,7 @@ TALER_json_validate_wireformat (const char **allowed,
   if (NULL == allowed[i])
   {
     GNUNET_log (GNUNET_ERROR_TYPE_INFO,
-                "Wireformat `%s' does not match mint's allowed formats\n",
+                "Wireformat `%s' does not match exchange's allowed formats\n",
                 stype);
     return GNUNET_NO;
   }
diff --git a/src/wire/plugin_wire_sepa.c b/src/wire/plugin_wire_sepa.c
index 00d19d4b0..4d902f962 100644
--- a/src/wire/plugin_wire_sepa.c
+++ b/src/wire/plugin_wire_sepa.c
@@ -501,12 +501,12 @@ libtaler_plugin_wire_sepa_init (void *cls)
   sc = GNUNET_new (struct SepaClosure);
   if (GNUNET_OK !=
       GNUNET_CONFIGURATION_get_value_string (cfg,
-                                             "mint",
+                                             "exchange",
                                              "CURRENCY",
                                              &sc->currency))
   {
     GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               "mint",
+                               "exchange",
                                "CURRENCY");
     GNUNET_free (sc);
     return NULL;
diff --git a/src/wire/plugin_wire_template.c b/src/wire/plugin_wire_template.c
index baf0ee7d5..2e9512e57 100644
--- a/src/wire/plugin_wire_template.c
+++ b/src/wire/plugin_wire_template.c
@@ -197,12 +197,12 @@ libtaler_plugin_wire_template_init (void *cls)
   }
   if (GNUNET_OK !=
       GNUNET_CONFIGURATION_get_value_string (cfg,
-                                             "mint",
+                                             "exchange",
                                              "CURRENCY",
                                              &tc->currency))
   {
     GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               "mint",
+                               "exchange",
                                "CURRENCY");
     GNUNET_free (tc->bank_uri);
     GNUNET_free (tc);
diff --git a/src/wire/plugin_wire_test.c b/src/wire/plugin_wire_test.c
index 8a6f98ea2..2f679bbaa 100644
--- a/src/wire/plugin_wire_test.c
+++ b/src/wire/plugin_wire_test.c
@@ -553,12 +553,12 @@ libtaler_plugin_wire_test_init (void *cls)
   tc = GNUNET_new (struct TestClosure);
   if (GNUNET_OK !=
       GNUNET_CONFIGURATION_get_value_string (cfg,
-                                             "mint",
+                                             "exchange",
                                              "CURRENCY",
                                              &tc->currency))
   {
     GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
-                               "mint",
+                               "exchange",
                                "CURRENCY");
     GNUNET_free (uri);
     GNUNET_free (tc);
diff --git a/src/wire/test_sepa_wireformat.c b/src/wire/test_sepa_wireformat.c
index edbe5bc45..5081cbe86 100644
--- a/src/wire/test_sepa_wireformat.c
+++ b/src/wire/test_sepa_wireformat.c
@@ -77,7 +77,7 @@ main(int argc,
                     NULL);
   cfg = GNUNET_CONFIGURATION_create ();
   GNUNET_CONFIGURATION_set_value_string (cfg,
-                                         "mint",
+                                         "exchange",
                                          "currency",
                                          "EUR");
   plugin = TALER_WIRE_plugin_load (cfg,