diff options
Diffstat (limited to 'src/util/test_helper_rsa.c')
-rw-r--r-- | src/util/test_helper_rsa.c | 449 |
1 files changed, 391 insertions, 58 deletions
diff --git a/src/util/test_helper_rsa.c b/src/util/test_helper_rsa.c index 14ff2bfab..2bc15879f 100644 --- a/src/util/test_helper_rsa.c +++ b/src/util/test_helper_rsa.c @@ -1,6 +1,6 @@ /* This file is part of TALER - (C) 2020, 2021 Taler Systems SA + (C) 2020, 2021, 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 @@ -64,7 +64,7 @@ struct KeyData /** * Validity start point. */ - struct GNUNET_TIME_Absolute start_time; + struct GNUNET_TIME_Timestamp start_time; /** * Key expires for signing at @e start_time plus this value. @@ -129,7 +129,7 @@ free_keys (void) * @param validity_duration how long does the key remain available for signing; * zero if the key has been revoked or purged * @param h_rsa hash of the @a denom_pub that is available (or was purged) - * @param denom_pub the public key itself, NULL if the key was revoked or purged + * @param bs_pub the public key itself, NULL if the key was revoked or purged * @param sm_pub public key of the security module, NULL if the key was revoked or purged * @param sm_sig signature from the security module, NULL if the key was revoked or purged * The signature was already verified against @a sm_pub. @@ -137,10 +137,10 @@ free_keys (void) static void key_cb (void *cls, const char *section_name, - struct GNUNET_TIME_Absolute start_time, + struct GNUNET_TIME_Timestamp start_time, struct GNUNET_TIME_Relative validity_duration, const struct TALER_RsaPubHashP *h_rsa, - const struct TALER_DenominationPublicKey *denom_pub, + struct GNUNET_CRYPTO_BlindSignPublicKey *bs_pub, const struct TALER_SecurityModulePublicKeyP *sm_pub, const struct TALER_SecurityModuleSignatureP *sm_sig) { @@ -155,7 +155,7 @@ key_cb (void *cls, { bool found = false; - GNUNET_break (NULL == denom_pub); + GNUNET_break (NULL == bs_pub); GNUNET_break (NULL == section_name); for (unsigned int i = 0; i<MAX_KEYS; i++) if (0 == GNUNET_memcmp (h_rsa, @@ -176,7 +176,7 @@ key_cb (void *cls, return; } - GNUNET_break (NULL != denom_pub); + GNUNET_break (NULL != bs_pub); for (unsigned int i = 0; i<MAX_KEYS; i++) if (! keys[i].valid) { @@ -184,8 +184,8 @@ key_cb (void *cls, keys[i].h_rsa = *h_rsa; keys[i].start_time = start_time; keys[i].validity_duration = validity_duration; - TALER_denom_pub_deep_copy (&keys[i].denom_pub, - denom_pub); + keys[i].denom_pub.bsign_pub_key + = GNUNET_CRYPTO_bsign_pub_incref (bs_pub); num_keys++; return; } @@ -267,45 +267,83 @@ test_signing (struct TALER_CRYPTO_RsaDenominationHelper *dh) struct TALER_BlindedDenominationSignature ds; enum TALER_ErrorCode ec; bool success = false; - struct TALER_PlanchetSecretsP ps; - struct TALER_CoinPubHash c_hash; + struct TALER_PlanchetMasterSecretP ps; + const struct TALER_ExchangeWithdrawValues *alg_values + = TALER_denom_ewv_rsa_singleton (); + struct TALER_AgeCommitmentHash ach; + struct TALER_CoinPubHashP c_hash; + struct TALER_CoinSpendPrivateKeyP coin_priv; + union GNUNET_CRYPTO_BlindingSecretP bks; + + GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_STRONG, + &ps, + sizeof (ps)); + TALER_planchet_setup_coin_priv (&ps, + alg_values, + &coin_priv); + TALER_planchet_blinding_secret_create (&ps, + alg_values, + &bks); + GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK, + &ach, + sizeof(ach)); - TALER_planchet_setup_random (&ps); for (unsigned int i = 0; i<MAX_KEYS; i++) { if (! keys[i].valid) continue; + if (GNUNET_CRYPTO_BSA_RSA != + keys[i].denom_pub.bsign_pub_key->cipher) + continue; { struct TALER_PlanchetDetail pd; GNUNET_assert (GNUNET_YES == TALER_planchet_prepare (&keys[i].denom_pub, - &ps, + alg_values, + &bks, + NULL, + &coin_priv, + &ach, &c_hash, &pd)); - GNUNET_log (GNUNET_ERROR_TYPE_INFO, - "Requesting signature over %u bytes with key %s\n", - (unsigned int) pd.coin_ev_size, - GNUNET_h2s (&keys[i].h_rsa.hash)); - ds = TALER_CRYPTO_helper_rsa_sign (dh, - &keys[i].h_rsa, - pd.coin_ev, - pd.coin_ev_size, - &ec); - GNUNET_free (pd.coin_ev); + { + struct TALER_CRYPTO_RsaSignRequest rsr = { + .h_rsa = &keys[i].h_rsa, + .msg = + pd.blinded_planchet.blinded_message->details.rsa_blinded_message. + blinded_msg, + .msg_size = + pd.blinded_planchet.blinded_message->details.rsa_blinded_message. + blinded_msg_size + }; + + GNUNET_log (GNUNET_ERROR_TYPE_INFO, + "Requesting signature over %u bytes with key %s\n", + (unsigned int) rsr.msg_size, + GNUNET_h2s (&rsr.h_rsa->hash)); + ec = TALER_CRYPTO_helper_rsa_sign (dh, + &rsr, + &ds); + } + TALER_blinded_planchet_free (&pd.blinded_planchet); } switch (ec) { case TALER_EC_NONE: - if (GNUNET_TIME_absolute_get_remaining (keys[i].start_time).rel_value_us > - GNUNET_TIME_UNIT_SECONDS.rel_value_us) + if (GNUNET_TIME_relative_cmp (GNUNET_TIME_absolute_get_remaining ( + keys[i].start_time.abs_time), + >, + GNUNET_TIME_UNIT_SECONDS)) { /* key worked too early */ GNUNET_break (0); return 4; } - if (GNUNET_TIME_absolute_get_duration (keys[i].start_time).rel_value_us > - keys[i].validity_duration.rel_value_us) + if (GNUNET_TIME_relative_cmp (GNUNET_TIME_absolute_get_duration ( + keys[i].start_time.abs_time), + >, + keys[i].validity_duration)) { /* key worked too later */ GNUNET_break (0); @@ -317,7 +355,9 @@ test_signing (struct TALER_CRYPTO_RsaDenominationHelper *dh) if (GNUNET_OK != TALER_denom_sig_unblind (&rs, &ds, - &ps.blinding_key, + &bks, + &c_hash, + alg_values, &keys[i].denom_pub)) { GNUNET_break (0); @@ -344,12 +384,14 @@ test_signing (struct TALER_CRYPTO_RsaDenominationHelper *dh) case TALER_EC_EXCHANGE_DENOMINATION_HELPER_TOO_EARLY: /* This 'failure' is expected, we're testing also for the error handling! */ - if ( (0 == - GNUNET_TIME_absolute_get_remaining ( - keys[i].start_time).rel_value_us) && - (GNUNET_TIME_absolute_get_duration ( - keys[i].start_time).rel_value_us < - keys[i].validity_duration.rel_value_us) ) + if ( (GNUNET_TIME_relative_is_zero ( + GNUNET_TIME_absolute_get_remaining ( + keys[i].start_time.abs_time))) && + (GNUNET_TIME_relative_cmp ( + GNUNET_TIME_absolute_get_duration ( + keys[i].start_time.abs_time), + <, + keys[i].validity_duration)) ) { /* key should have worked! */ GNUNET_break (0); @@ -359,8 +401,10 @@ test_signing (struct TALER_CRYPTO_RsaDenominationHelper *dh) default: /* unexpected error */ GNUNET_log (GNUNET_ERROR_TYPE_ERROR, - "Unexpected error %d\n", - ec); + "Unexpected error %d at %s:%u\n", + ec, + __FILE__, + __LINE__); return 7; } } @@ -374,15 +418,18 @@ test_signing (struct TALER_CRYPTO_RsaDenominationHelper *dh) /* check signing does not work if the key is unknown */ { struct TALER_RsaPubHashP rnd; + struct TALER_CRYPTO_RsaSignRequest rsr = { + .h_rsa = &rnd, + .msg = "Hello", + .msg_size = strlen ("Hello") + }; GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK, &rnd, sizeof (rnd)); - ds = TALER_CRYPTO_helper_rsa_sign (dh, - &rnd, - "Hello", - strlen ("Hello"), - &ec); + ec = TALER_CRYPTO_helper_rsa_sign (dh, + &rsr, + &ds); if (TALER_EC_EXCHANGE_GENERIC_DENOMINATION_KEY_UNKNOWN != ec) { if (TALER_EC_NONE == ec) @@ -399,6 +446,227 @@ test_signing (struct TALER_CRYPTO_RsaDenominationHelper *dh) /** + * Test batch signing logic. + * + * @param dh handle to the helper + * @param batch_size how large should the batch be + * @param check_sigs also check unknown key and signatures + * @return 0 on success + */ +static int +test_batch_signing (struct TALER_CRYPTO_RsaDenominationHelper *dh, + unsigned int batch_size, + bool check_sigs) +{ + struct TALER_BlindedDenominationSignature ds[batch_size]; + enum TALER_ErrorCode ec; + bool success = false; + struct TALER_PlanchetMasterSecretP ps[batch_size]; + const struct TALER_ExchangeWithdrawValues *alg_values; + struct TALER_AgeCommitmentHash ach[batch_size]; + struct TALER_CoinPubHashP c_hash[batch_size]; + struct TALER_CoinSpendPrivateKeyP coin_priv[batch_size]; + union GNUNET_CRYPTO_BlindingSecretP bks[batch_size]; + + GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_STRONG, + &ps, + sizeof (ps)); + GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK, + &ach, + sizeof(ach)); + alg_values = TALER_denom_ewv_rsa_singleton (); + for (unsigned int i = 0; i<batch_size; i++) + { + TALER_planchet_setup_coin_priv (&ps[i], + alg_values, + &coin_priv[i]); + TALER_planchet_blinding_secret_create (&ps[i], + alg_values, + &bks[i]); + } + for (unsigned int k = 0; k<MAX_KEYS; k++) + { + if (success && ! check_sigs) + break; /* only do one round */ + if (! keys[k].valid) + continue; + if (GNUNET_CRYPTO_BSA_RSA != + keys[k].denom_pub.bsign_pub_key->cipher) + continue; + { + struct TALER_PlanchetDetail pd[batch_size]; + struct TALER_CRYPTO_RsaSignRequest rsr[batch_size]; + + for (unsigned int i = 0; i<batch_size; i++) + { + GNUNET_assert (GNUNET_YES == + TALER_planchet_prepare (&keys[k].denom_pub, + alg_values, + &bks[i], + NULL, + &coin_priv[i], + &ach[i], + &c_hash[i], + &pd[i])); + rsr[i].h_rsa + = &keys[k].h_rsa; + rsr[i].msg + = pd[i].blinded_planchet.blinded_message->details.rsa_blinded_message. + blinded_msg; + rsr[i].msg_size + = pd[i].blinded_planchet.blinded_message->details.rsa_blinded_message. + blinded_msg_size; + } + ec = TALER_CRYPTO_helper_rsa_batch_sign (dh, + batch_size, + rsr, + ds); + for (unsigned int i = 0; i<batch_size; i++) + { + if (TALER_EC_NONE == ec) + GNUNET_break (GNUNET_CRYPTO_BSA_RSA == + ds[i].blinded_sig->cipher); + TALER_blinded_planchet_free (&pd[i].blinded_planchet); + } + } + switch (ec) + { + case TALER_EC_NONE: + if (GNUNET_TIME_relative_cmp (GNUNET_TIME_absolute_get_remaining ( + keys[k].start_time.abs_time), + >, + GNUNET_TIME_UNIT_SECONDS)) + { + /* key worked too early */ + GNUNET_break (0); + return 4; + } + if (GNUNET_TIME_relative_cmp (GNUNET_TIME_absolute_get_duration ( + keys[k].start_time.abs_time), + >, + keys[k].validity_duration)) + { + /* key worked too later */ + GNUNET_break (0); + return 5; + } + for (unsigned int i = 0; i<batch_size; i++) + { + struct TALER_DenominationSignature rs; + + if (check_sigs) + { + if (GNUNET_OK != + TALER_denom_sig_unblind (&rs, + &ds[i], + &bks[i], + &c_hash[i], + alg_values, + &keys[k].denom_pub)) + { + GNUNET_break (0); + return 6; + } + } + TALER_blinded_denom_sig_free (&ds[i]); + if (check_sigs) + { + if (GNUNET_OK != + TALER_denom_pub_verify (&keys[k].denom_pub, + &rs, + &c_hash[i])) + { + /* signature invalid */ + GNUNET_break (0); + TALER_denom_sig_free (&rs); + return 7; + } + TALER_denom_sig_free (&rs); + } + } + GNUNET_log (GNUNET_ERROR_TYPE_INFO, + "Received valid signature for key %s\n", + GNUNET_h2s (&keys[k].h_rsa.hash)); + success = true; + break; + case TALER_EC_EXCHANGE_DENOMINATION_HELPER_TOO_EARLY: + /* This 'failure' is expected, we're testing also for the + error handling! */ + for (unsigned int i = 0; i<batch_size; i++) + TALER_blinded_denom_sig_free (&ds[i]); + if ( (GNUNET_TIME_relative_is_zero ( + GNUNET_TIME_absolute_get_remaining ( + keys[k].start_time.abs_time))) && + (GNUNET_TIME_relative_cmp ( + GNUNET_TIME_absolute_get_duration ( + keys[k].start_time.abs_time), + <, + keys[k].validity_duration)) ) + { + /* key should have worked! */ + GNUNET_break (0); + return 6; + } + break; + case TALER_EC_EXCHANGE_GENERIC_DENOMINATION_KEY_UNKNOWN: + for (unsigned int i = 0; i<batch_size; i++) + TALER_blinded_denom_sig_free (&ds[i]); + break; + default: + /* unexpected error */ + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + "Unexpected error %d at %s:%u\n", + ec, + __FILE__, + __LINE__); + for (unsigned int i = 0; i<batch_size; i++) + TALER_blinded_denom_sig_free (&ds[i]); + return 7; + } + } + if (! success) + { + /* no valid key for signing found, also bad */ + GNUNET_break (0); + return 16; + } + + /* check signing does not work if the key is unknown */ + if (check_sigs) + { + struct TALER_RsaPubHashP rnd; + struct TALER_CRYPTO_RsaSignRequest rsr = { + .h_rsa = &rnd, + .msg = "Hello", + .msg_size = strlen ("Hello") + }; + + GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK, + &rnd, + sizeof (rnd)); + ec = TALER_CRYPTO_helper_rsa_batch_sign (dh, + 1, + &rsr, + ds); + if (TALER_EC_EXCHANGE_GENERIC_DENOMINATION_KEY_UNKNOWN != ec) + { + GNUNET_log (GNUNET_ERROR_TYPE_ERROR, + "Signing with invalid key returned unexpected status %d\n", + ec); + if (TALER_EC_NONE == ec) + TALER_blinded_denom_sig_free (ds); + GNUNET_break (0); + return 17; + } + GNUNET_log (GNUNET_ERROR_TYPE_INFO, + "Signing with invalid key %s failed as desired\n", + GNUNET_h2s (&rnd.hash)); + } + return 0; +} + + +/** * Benchmark signing logic. * * @param dh handle to the helper @@ -411,9 +679,23 @@ perf_signing (struct TALER_CRYPTO_RsaDenominationHelper *dh, struct TALER_BlindedDenominationSignature ds; enum TALER_ErrorCode ec; struct GNUNET_TIME_Relative duration; - struct TALER_PlanchetSecretsP ps; - - TALER_planchet_setup_random (&ps); + struct TALER_PlanchetMasterSecretP ps; + struct TALER_CoinSpendPrivateKeyP coin_priv; + struct TALER_AgeCommitmentHash ach; + union GNUNET_CRYPTO_BlindingSecretP bks; + const struct TALER_ExchangeWithdrawValues *alg_values + = TALER_denom_ewv_rsa_singleton (); + + TALER_planchet_master_setup_random (&ps); + TALER_planchet_setup_coin_priv (&ps, + alg_values, + &coin_priv); + TALER_planchet_blinding_secret_create (&ps, + alg_values, + &bks); + GNUNET_CRYPTO_random_block (GNUNET_CRYPTO_QUALITY_WEAK, + &ach, + sizeof(ach)); duration = GNUNET_TIME_UNIT_ZERO; TALER_CRYPTO_helper_rsa_poll (dh); for (unsigned int j = 0; j<NUM_SIGN_PERFS;) @@ -422,19 +704,30 @@ perf_signing (struct TALER_CRYPTO_RsaDenominationHelper *dh, { if (! keys[i].valid) continue; - if (GNUNET_TIME_absolute_get_remaining (keys[i].start_time).rel_value_us > - GNUNET_TIME_UNIT_SECONDS.rel_value_us) + if (GNUNET_CRYPTO_BSA_RSA != + keys[i].denom_pub.bsign_pub_key->cipher) + continue; + if (GNUNET_TIME_relative_cmp (GNUNET_TIME_absolute_get_remaining ( + keys[i].start_time.abs_time), + >, + GNUNET_TIME_UNIT_SECONDS)) continue; - if (GNUNET_TIME_absolute_get_duration (keys[i].start_time).rel_value_us > - keys[i].validity_duration.rel_value_us) + if (GNUNET_TIME_relative_cmp (GNUNET_TIME_absolute_get_duration ( + keys[i].start_time.abs_time), + >, + keys[i].validity_duration)) continue; { - struct TALER_CoinPubHash c_hash; + struct TALER_CoinPubHashP c_hash; struct TALER_PlanchetDetail pd; GNUNET_assert (GNUNET_YES == TALER_planchet_prepare (&keys[i].denom_pub, - &ps, + alg_values, + &bks, + NULL, + &coin_priv, + &ach, &c_hash, &pd)); /* use this key as long as it works */ @@ -442,12 +735,19 @@ perf_signing (struct TALER_CRYPTO_RsaDenominationHelper *dh, { struct GNUNET_TIME_Absolute start = GNUNET_TIME_absolute_get (); struct GNUNET_TIME_Relative delay; - - ds = TALER_CRYPTO_helper_rsa_sign (dh, - &keys[i].h_rsa, - pd.coin_ev, - pd.coin_ev_size, - &ec); + struct TALER_CRYPTO_RsaSignRequest rsr = { + .h_rsa = &keys[i].h_rsa, + .msg = + pd.blinded_planchet.blinded_message->details.rsa_blinded_message. + blinded_msg, + .msg_size = + pd.blinded_planchet.blinded_message->details.rsa_blinded_message. + blinded_msg_size + }; + + ec = TALER_CRYPTO_helper_rsa_sign (dh, + &rsr, + &ds); if (TALER_EC_NONE != ec) break; delay = GNUNET_TIME_absolute_get_duration (start); @@ -458,7 +758,7 @@ perf_signing (struct TALER_CRYPTO_RsaDenominationHelper *dh, if (NUM_SIGN_PERFS <= j) break; } - GNUNET_free (pd.coin_ev); + TALER_blinded_planchet_free (&pd.blinded_planchet); } } /* for i */ } /* for j */ @@ -497,6 +797,7 @@ par_signing (struct GNUNET_CONFIGURATION_Handle *cfg) int ret; dh = TALER_CRYPTO_helper_rsa_connect (cfg, + "taler-exchange", &key_cb, NULL); GNUNET_assert (NULL != dh); @@ -548,12 +849,14 @@ run_test (void) return 77; } - fprintf (stderr, "Waiting for helper to start ... "); + fprintf (stderr, + "Waiting for helper to start ... "); for (unsigned int i = 0; i<100; i++) { nanosleep (&req, NULL); dh = TALER_CRYPTO_helper_rsa_connect (cfg, + "taler-exchange", &key_cb, NULL); if (NULL != dh) @@ -584,6 +887,34 @@ run_test (void) if (0 == ret) ret = test_signing (dh); if (0 == ret) + ret = test_batch_signing (dh, + 2, + true); + if (0 == ret) + ret = test_batch_signing (dh, + 256, + true); + for (unsigned int i = 0; i<5; i++) + { + static unsigned int batches[] = { 1, 4, 16, 64, 256 }; + unsigned int batch_size = batches[i]; + struct GNUNET_TIME_Absolute start; + struct GNUNET_TIME_Relative duration; + + start = GNUNET_TIME_absolute_get (); + if (0 != ret) + break; + ret = test_batch_signing (dh, + batch_size, + false); + duration = GNUNET_TIME_absolute_get_duration (start); + fprintf (stderr, + "%4u (batch) signature operations took %s (total real time)\n", + (unsigned int) batch_size, + GNUNET_STRINGS_relative_time_to_string (duration, + GNUNET_YES)); + } + if (0 == ret) ret = perf_signing (dh, "sequential"); TALER_CRYPTO_helper_rsa_disconnect (dh); @@ -609,6 +940,8 @@ main (int argc, (void) argc; (void) argv; + unsetenv ("XDG_DATA_HOME"); + unsetenv ("XDG_CONFIG_HOME"); GNUNET_log_setup ("test-helper-rsa", "WARNING", NULL); |