diff options
Diffstat (limited to 'src/auditor/taler-auditor-sign.c')
-rw-r--r-- | src/auditor/taler-auditor-sign.c | 437 |
1 files changed, 0 insertions, 437 deletions
diff --git a/src/auditor/taler-auditor-sign.c b/src/auditor/taler-auditor-sign.c deleted file mode 100644 index af6cec2c4..000000000 --- a/src/auditor/taler-auditor-sign.c +++ /dev/null @@ -1,437 +0,0 @@ -/* - This file is part of TALER - Copyright (C) 2014, 2015, 2018 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 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" -#include "taler_auditordb_lib.h" - - -/** - * Are we running in verbose mode? - */ -static unsigned int verbose; - -/** - * Filename of the auditor's private key. - */ -static char *auditor_key_file; - -/** - * 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; - -/** - * URL of the auditor (informative for the user). - */ -static char *auditor_url; - -/** - * Master public key of the exchange. - */ -static struct TALER_MasterPublicKeyP master_public_key; - -/** - * Our configuration. - */ -static struct GNUNET_CONFIGURATION_Handle *cfg; - -/** - * Handle to access the auditor's database. - */ -static struct TALER_AUDITORDB_Plugin *adb; - - -/** - * 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); - TALER_amount_ntoh (&a, - &dk->fee_refund); - fprintf (stdout, - "Refund 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_deposit))); - 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) -{ - char *cfgfile = NULL; - char *loglev = NULL; - char *logfile = NULL; - const struct GNUNET_GETOPT_CommandLineOption options[] = { - GNUNET_GETOPT_option_filename ('a', - "auditor-key", - "FILENAME", - "file containing the private key of the auditor", - &auditor_key_file), - GNUNET_GETOPT_option_cfgfile (&cfgfile), - GNUNET_GETOPT_option_help ("Sign denomination keys of an exchange"), - GNUNET_GETOPT_option_loglevel (&loglev), - GNUNET_GETOPT_option_logfile (&logfile), - GNUNET_GETOPT_option_mandatory - (GNUNET_GETOPT_option_base32_auto ('m', - "exchange-key", - "KEY", - "public key of the exchange (Crockford base32 encoded)", - &master_public_key)), - GNUNET_GETOPT_option_string ('u', - "auditor-url", - "URL", - "URL of the auditor (informative link for the user)", - &auditor_url), - GNUNET_GETOPT_option_mandatory - (GNUNET_GETOPT_option_filename ('r', - "exchange-request", - "FILENAME", - "set of keys the exchange requested the auditor to sign", - &exchange_request_file)), - GNUNET_GETOPT_option_filename ('o', - "output", - "FILENAME", - "where to write our signature", - &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 *dki; - unsigned int dki_len; - struct TALER_ExchangeKeyValidityPS kv; - off_t in_size; - - if (GNUNET_GETOPT_run ("taler-auditor-sign", - options, - argc, argv) <= 0) - return 1; - GNUNET_assert (GNUNET_OK == - GNUNET_log_setup ("taler-auditor-sign", - loglev, - logfile)); - if (NULL == cfgfile) - cfgfile = GNUNET_strdup (GNUNET_OS_project_data_get ()->user_config_file); - cfg = GNUNET_CONFIGURATION_create (); - if (GNUNET_SYSERR == - GNUNET_CONFIGURATION_load (cfg, - cfgfile)) - { - GNUNET_log (GNUNET_ERROR_TYPE_ERROR, - "Malformed configuration file `%s', exiting ...\n", - cfgfile); - GNUNET_free (cfgfile); - return 1; - } - GNUNET_free (cfgfile); - if ( (NULL == auditor_key_file) && - (GNUNET_OK != - GNUNET_CONFIGURATION_get_value_filename (cfg, - "auditor", - "AUDITOR_PRIV_FILE", - &auditor_key_file)) ) - { - fprintf (stderr, - "Auditor key file not given in neither configuration nor command-line\n"); - return 1; - } - if ( (NULL == auditor_url) && - (GNUNET_OK != - GNUNET_CONFIGURATION_get_value_string (cfg, - "auditor", - "AUDITOR_URL", - &auditor_url)) ) - { - fprintf (stderr, - "Auditor URL not given in neither configuration nor command-line\n"); - return 1; - } - if (GNUNET_SYSERR == - GNUNET_CRYPTO_eddsa_key_from_file (auditor_key_file, - GNUNET_YES, - &eddsa_priv)) - { - fprintf (stderr, - "Failed to initialize auditor private key from file `%s'\n", - auditor_key_file); - return 1; - } - GNUNET_CRYPTO_eddsa_key_get_public (&eddsa_priv, - &apub.eddsa_pub); - 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)); - 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); - 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); - return 1; - } - dki_len = in_size / sizeof (struct TALER_DenominationKeyValidityPS); - if (0 == dki_len) - { - fprintf (stderr, - "Failed to produce auditor signature, denomination list is empty.\n"); - GNUNET_DISK_file_close (fh); - return 2; - } - if (NULL == - (adb = TALER_AUDITORDB_plugin_load (cfg))) - { - fprintf (stderr, - "Failed to initialize auditor database plugin.\n"); - GNUNET_DISK_file_close (fh); - return 3; - } - - kv.purpose.purpose = htonl (TALER_SIGNATURE_AUDITOR_EXCHANGE_KEYS); - kv.purpose.size = htonl (sizeof (struct TALER_ExchangeKeyValidityPS)); - GNUNET_CRYPTO_hash (auditor_url, - strlen (auditor_url) + 1, - &kv.auditor_url_hash); - kv.master = master_public_key; - dki = GNUNET_new_array (dki_len, - struct TALER_DenominationKeyValidityPS); - if (in_size != - GNUNET_DISK_file_read (fh, - dki, - in_size)) - { - fprintf (stderr, - "Failed to read input file `%s': %s\n", - exchange_request_file, - strerror (errno)); - TALER_AUDITORDB_plugin_unload (adb); - GNUNET_DISK_file_close (fh); - GNUNET_free (dki); - return 1; - } - GNUNET_DISK_file_close (fh); - sigs = GNUNET_new_array (dki_len, - struct TALER_AuditorSignatureP); - for (unsigned int i = 0; i<dki_len; i++) - { - struct TALER_DenominationKeyValidityPS *dk = &dki[i]; - - if (verbose) - print_dk (dk); - kv.start = dk->start; - kv.expire_withdraw = dk->expire_withdraw; - kv.expire_deposit = dk->expire_deposit; - 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.fee_refund = dk->fee_refund; - kv.denom_hash = dk->denom_hash; - - /* Finally sign ... */ - GNUNET_CRYPTO_eddsa_sign (&eddsa_priv, - &kv, - &sigs[i].eddsa_sig); - } - - if (NULL == output_file) - { - fprintf (stderr, - "Output file not given\n"); - TALER_AUDITORDB_plugin_unload (adb); - GNUNET_free (dki); - GNUNET_free (sigs); - return 1; - } - - /* Create required tables */ - if (GNUNET_OK != - adb->create_tables (adb->cls)) - { - fprintf (stderr, - "Failed to create tables in auditor's database\n"); - TALER_AUDITORDB_plugin_unload (adb); - GNUNET_free (dki); - GNUNET_free (sigs); - return 3; - } - - GNUNET_log (GNUNET_ERROR_TYPE_INFO, - "Taler auditor importing keys for exchange master public key %s\n", - TALER_B2S (&master_public_key)); - - /* Update DB */ - { - enum GNUNET_DB_QueryStatus qs; - struct TALER_AUDITORDB_Session *session; - - session = adb->get_session (adb->cls); - if (NULL == session) - { - fprintf (stderr, - "Failed to initialize database session\n"); - TALER_AUDITORDB_plugin_unload (adb); - GNUNET_free (dki); - GNUNET_free (sigs); - return 3; - } - for (unsigned int i = 0; i<dki_len; i++) - { - const struct TALER_DenominationKeyValidityPS *dk = &dki[i]; - - GNUNET_log (GNUNET_ERROR_TYPE_INFO, - "Adding denomination key %s to auditor database\n", - TALER_B2S (&dk->denom_hash)); - qs = adb->insert_denomination_info (adb->cls, - session, - dk); - if (0 > qs) - { - fprintf (stderr, - "Failed to store key in auditor DB (did you add the exchange using taler-auditor-exchange first?)\n"); - TALER_AUDITORDB_plugin_unload (adb); - GNUNET_free (dki); - GNUNET_free (sigs); - return 3; - } - } - } - TALER_AUDITORDB_plugin_unload (adb); - - /* write result to disk */ - if (GNUNET_OK != - TALER_EXCHANGEDB_auditor_write (output_file, - &apub, - auditor_url, - sigs, - &master_public_key, - dki_len, - dki)) - { - fprintf (stderr, - "Failed to write to file `%s': %s\n", - output_file, - strerror (errno)); - GNUNET_free (sigs); - GNUNET_free (dki); - return 1; - } - GNUNET_free (sigs); - GNUNET_free (dki); - return 0; -} - - -/* end of taler-auditor-sign.c */ |