1 files changed, 223 insertions, 0 deletions
diff --git a/src/util/secmod_rsa.h b/src/util/secmod_rsa.h
new file mode 100644
index 000000000..ffbceb48e
--- /dev/null
+++ b/src/util/secmod_rsa.h
@@ -0,0 +1,223 @@
+/*
+  This file is part of TALER
+  Copyright (C) 2020-2022 Taler Systems SA
+
+  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, see <http://www.gnu.org/licenses/>
+*/
+/**
+ * @file util/taler-exchange-secmod-rsa.h
+ * @brief IPC messages for the RSA crypto helper.
+ * @author Christian Grothoff
+ */
+#ifndef TALER_EXCHANGE_SECMOD_RSA_H
+#define TALER_EXCHANGE_SECMOD_RSA_H
+
+#define TALER_HELPER_RSA_MT_PURGE 1
+#define TALER_HELPER_RSA_MT_AVAIL 2
+
+#define TALER_HELPER_RSA_MT_REQ_BATCH_SIGN 3
+#define TALER_HELPER_RSA_MT_REQ_INIT 4
+#define TALER_HELPER_RSA_MT_REQ_SIGN 5
+#define TALER_HELPER_RSA_MT_REQ_REVOKE 6
+
+#define TALER_HELPER_RSA_MT_RES_SIGNATURE 7
+#define TALER_HELPER_RSA_MT_RES_SIGN_FAILURE 8
+#define TALER_HELPER_RSA_MT_RES_BATCH_FAILURE 9
+
+#define TALER_HELPER_RSA_SYNCED 10
+
+
+GNUNET_NETWORK_STRUCT_BEGIN
+
+
+/**
+ * Message sent if a key is available.
+ */
+struct TALER_CRYPTO_RsaKeyAvailableNotification
+{
+  /**
+   * Type is #TALER_HELPER_RSA_MT_AVAIL
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * Number of bytes of the public key.
+   */
+  uint16_t pub_size;
+
+  /**
+   * Number of bytes of the section name.
+   */
+  uint16_t section_name_len;
+
+  /**
+   * When does the key become available?
+   */
+  struct GNUNET_TIME_TimestampNBO anchor_time;
+
+  /**
+   * How long is the key available after @e anchor_time?
+   */
+  struct GNUNET_TIME_RelativeNBO duration_withdraw;
+
+  /**
+   * Public key used to generate the @e sicm_sig.
+   */
+  struct TALER_SecurityModulePublicKeyP secm_pub;
+
+  /**
+   * Signature affirming the announcement, of
+   * purpose #TALER_SIGNATURE_SM_RSA_DENOMINATION_KEY.
+   */
+  struct TALER_SecurityModuleSignatureP secm_sig;
+
+  /* followed by @e pub_size bytes of the RSA public key */
+
+  /* followed by @e section_name bytes of the configuration section name
+     of the denomination of this key */
+
+};
+
+
+/**
+ * Message sent if a key was purged.
+ */
+struct TALER_CRYPTO_RsaKeyPurgeNotification
+{
+  /**
+   * Type is #TALER_HELPER_RSA_MT_PURGE.
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * For now, always zero.
+   */
+  uint32_t reserved;
+
+  /**
+   * Hash of the public key of the purged RSA key.
+   */
+  struct TALER_RsaPubHashP h_rsa;
+
+};
+
+
+/**
+ * Message sent if a signature is requested.
+ */
+struct TALER_CRYPTO_SignRequest
+{
+  /**
+   * Type is #TALER_HELPER_RSA_MT_REQ_SIGN.
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * For now, always zero.
+   */
+  uint32_t reserved;
+
+  /**
+   * Hash of the public key of the RSA key to use for the signature.
+   */
+  struct TALER_RsaPubHashP h_rsa;
+
+  /* followed by message to sign */
+};
+
+
+/**
+ * Message sent if a batch of signatures is requested.
+ */
+struct TALER_CRYPTO_BatchSignRequest
+{
+  /**
+   * Type is #TALER_HELPER_RSA_MT_REQ_BATCH_SIGN.
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * Number of signatures to create, in NBO.
+   */
+  uint32_t batch_size;
+
+  /*
+   * Followed by @e batch_size sign requests.
+   */
+
+};
+
+
+/**
+ * Message sent if a key was revoked.
+ */
+struct TALER_CRYPTO_RevokeRequest
+{
+  /**
+   * Type is #TALER_HELPER_RSA_MT_REQ_REVOKE.
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * For now, always zero.
+   */
+  uint32_t reserved;
+
+  /**
+   * Hash of the public key of the revoked RSA key.
+   */
+  struct TALER_RsaPubHashP h_rsa;
+
+};
+
+
+/**
+ * Message sent if a signature was successfully computed.
+ */
+struct TALER_CRYPTO_SignResponse
+{
+  /**
+   * Type is #TALER_HELPER_RSA_MT_RES_SIGNATURE.
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * For now, always zero.
+   */
+  uint32_t reserved;
+
+  /* followed by RSA signature */
+};
+
+
+/**
+ * Message sent if signing failed.
+ */
+struct TALER_CRYPTO_SignFailure
+{
+  /**
+   * Type is #TALER_HELPER_RSA_MT_RES_SIGN_FAILURE.
+   */
+  struct GNUNET_MessageHeader header;
+
+  /**
+   * If available, Taler error code. In NBO.
+   */
+  uint32_t ec;
+
+};
+
+
+GNUNET_NETWORK_STRUCT_END
+
+
+#endif