taler/exchange
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

got testing_api_cmd_refresh to compile

Browse Source
This commit is contained in:
Christian Grothoff 2022-02-07 10:09:12 +01:00
parent 4a575f5044
commit 2164c36f0f
No known key found for this signature in database
GPG Key ID: 939E6BE1E29FC3CC
6 changed files with 123 additions and 59 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/include/taler_crypto_lib.h
View File

@ -1479,10 +1479,10 @@ TALER_planchet_setup_refresh (const struct TALER_TransferSecretP *secret_seed,
/**
* Setup information for a fresh coin.
* Setup information for fresh coins to be withdrawn
* or refreshed.
*
* @param[out] ps value to initialize
* @oaram alg_values WitdrawValues containing cipher
*/
void
TALER_planchet_setup_random (

8
src/include/taler_exchange_service.h
View File

@ -1411,6 +1411,12 @@ struct TALER_EXCHANGE_WithdrawResponse
*/
struct TALER_CoinSpendPrivateKeyP coin_priv;
/**
* Value used to blind the key for the signature.
* Needed for recoup operations.
*/
union TALER_DenominationBlindingKeyP bks;
/**
* Signature over the coin.
*/
@ -1634,6 +1640,7 @@ struct TALER_EXCHANGE_MeltHandle;
* @param hr HTTP response data
* @param num_coins number of fresh coins to be created, length of the @a exchange_vals array, 0 if the operation failed
* @param alg_values array @a num_coins of exchange values contributed to the refresh operation
* @param bks array of @a num_coins blinding keys used to blind the fresh coins
* @param noreveal_index choice by the exchange in the cut-and-choose protocol,
* UINT32_MAX on error
* @param sign_key exchange key used to sign @a full_response, or NULL
@ -1644,6 +1651,7 @@ typedef void
const struct TALER_EXCHANGE_HttpResponse *hr,
unsigned int num_coins,
const struct TALER_ExchangeWithdrawValues *alg_values,
const union TALER_DenominationBlindingKeyP *bks,
uint32_t noreveal_index,
const struct TALER_ExchangePublicKeyP *sign_key);

51
src/lib/exchange_api_melt.c
View File

@ -91,6 +91,12 @@ struct TALER_EXCHANGE_MeltHandle
*/
struct TALER_ExchangeWithdrawValues *alg_values;
/**
* Array of `num_fresh_coins` blinding secrets
* used for blinding the coins.
*/
union TALER_DenominationBlindingKeyP *bks;
/**
* Handle for the preflight request, or NULL.
*/
@ -135,7 +141,6 @@ verify_melt_signature_ok (struct TALER_EXCHANGE_MeltHandle *mh,
noreveal_index),
GNUNET_JSON_spec_end ()
};
struct TALER_RefreshMeltConfirmationPS confirm;
if (GNUNET_OK !=
GNUNET_JSON_parse (json,
@ -145,7 +150,6 @@ verify_melt_signature_ok (struct TALER_EXCHANGE_MeltHandle *mh,
GNUNET_break_op (0);
return GNUNET_SYSERR;
}
/* check that exchange signing key is permitted */
key_state = TALER_EXCHANGE_get_keys (mh->exchange);
if (GNUNET_OK !=
@ -163,20 +167,24 @@ verify_melt_signature_ok (struct TALER_EXCHANGE_MeltHandle *mh,
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.rc = mh->md.rc;
confirm.noreveal_index = htonl (*noreveal_index);
if (GNUNET_OK !=
GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_EXCHANGE_CONFIRM_MELT,
&confirm,
&exchange_sig.eddsa_signature,
&exchange_pub->eddsa_pub))
/* verify signature by exchange -- FIXME: move to util! */
{
GNUNET_break_op (0);
return GNUNET_SYSERR;
struct TALER_RefreshMeltConfirmationPS confirm = {
.purpose.purpose = htonl (TALER_SIGNATURE_EXCHANGE_CONFIRM_MELT),
.purpose.size = htonl (sizeof (confirm)),
.rc = mh->md.rc,
.noreveal_index = htonl (*noreveal_index)
};
if (GNUNET_OK !=
GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_EXCHANGE_CONFIRM_MELT,
&confirm,
&exchange_sig.eddsa_signature,
&exchange_pub->eddsa_pub))
{
GNUNET_break_op (0);
return GNUNET_SYSERR;
}
}
return GNUNET_OK;
}
@ -368,6 +376,9 @@ handle_melt_finished (void *cls,
(0 == hr.http_status)
? NULL
: mh->alg_values,
(0 == hr.http_status)
? NULL
: mh->bks,
noreveal_index,
(0 == hr.http_status)
? NULL
@ -451,6 +462,7 @@ handle_melt_finished (void *cls,
&hr,
0,
NULL,
NULL,
UINT32_MAX,
NULL);
TALER_EXCHANGE_melt_cancel (mh);
@ -561,6 +573,7 @@ fail_mh (struct TALER_EXCHANGE_MeltHandle *mh)
NULL,
0,
NULL,
NULL,
UINT32_MAX,
NULL);
TALER_EXCHANGE_melt_cancel (mh);
@ -591,8 +604,7 @@ csr_cb (void *cls,
{
case TALER_DENOMINATION_INVALID:
GNUNET_break (0);
// FIXME:
// fail_mh (mh).
fail_mh (mh);
return;
case TALER_DENOMINATION_RSA:
GNUNET_assert (TALER_DENOMINATION_RSA == wv->cipher);
@ -640,6 +652,8 @@ TALER_EXCHANGE_melt (struct TALER_EXCHANGE_Handle *exchange,
mh->melt_cb_cls = melt_cb_cls;
mh->alg_values = GNUNET_new_array (rd->fresh_pks_len,
struct TALER_ExchangeWithdrawValues);
mh->bks = GNUNET_new_array (rd->fresh_pks_len,
union TALER_DenominationBlindingKeyP);
for (unsigned int i = 0; i<rd->fresh_pks_len; i++)
{
const struct TALER_EXCHANGE_DenomPublicKey *fresh_pk = &rd->fresh_pks[i];
@ -650,6 +664,7 @@ TALER_EXCHANGE_melt (struct TALER_EXCHANGE_Handle *exchange,
case TALER_DENOMINATION_INVALID:
GNUNET_break (0);
GNUNET_free (mh->alg_values);
GNUNET_free (mh->bks);
GNUNET_free (mh);
return NULL;
case TALER_DENOMINATION_RSA:
@ -705,6 +720,8 @@ TALER_EXCHANGE_melt_cancel (struct TALER_EXCHANGE_MeltHandle *mh)
mh->csr = NULL;
}
TALER_EXCHANGE_free_melt_data_ (&mh->md); /* does not free 'md' itself */
GNUNET_free (mh->alg_values);
GNUNET_free (mh->bks);
GNUNET_free (mh->url);
TALER_curl_easy_post_finished (&mh->ctx);
GNUNET_free (mh);

5
src/lib/exchange_api_withdraw.c
View File

@ -1,6 +1,6 @@
/*
This file is part of TALER
Copyright (C) 2014-2021 Taler Systems SA
Copyright (C) 2014-2022 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
@ -145,7 +145,10 @@ handle_reserve_withdraw_finished (
wr.hr.ec = TALER_EC_EXCHANGE_WITHDRAW_UNBLIND_FAILURE;
break;
}
wr.details.success.coin_priv = wh->priv;
wr.details.success.bks = wh->bks;
wr.details.success.sig = fc.sig;
wr.details.success.exchange_vals = wh->alg_values;
break;
}
case MHD_HTTP_ACCEPTED:

11
src/lib/exchange_api_withdraw2.c
View File

@ -1,6 +1,6 @@
/*
This file is part of TALER
Copyright (C) 2014-2021 Taler Systems SA
Copyright (C) 2014-2022 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
@ -152,7 +152,8 @@ reserve_withdraw_payment_required (
json_t *history;
size_t len;
struct GNUNET_JSON_Specification spec[] = {
TALER_JSON_spec_amount_any ("balance", &balance),
TALER_JSON_spec_amount_any ("balance",
&balance),
GNUNET_JSON_spec_end ()
};
@ -182,9 +183,9 @@ reserve_withdraw_payment_required (
not fit on the stack. Use "GNUNET_malloc_large" as a malicious
exchange may theoretically try to crash us by giving a history
that does not fit into our memory. */
rhistory = GNUNET_malloc_large (sizeof (struct
TALER_EXCHANGE_ReserveHistory)
* len);
rhistory = GNUNET_malloc_large (
sizeof (struct TALER_EXCHANGE_ReserveHistory)
* len);
if (NULL == rhistory)
{
GNUNET_break (0);

103
src/testing/testing_api_cmd_refresh.c
View File

@ -1,6 +1,6 @@
/*
This file is part of TALER
Copyright (C) 2018-2020 Taler Systems SA
Copyright (C) 2018-2022 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
@ -91,9 +91,9 @@ struct RefreshMeltState
const char *coin_reference;
/**
* "Crypto data" used in the refresh operation.
* Data used in the refresh operation.
*/
json_t *refresh_data;
struct TALER_EXCHANGE_RefreshData refresh_data;
/**
* Reference to a previous melt command.
@ -116,6 +116,16 @@ struct RefreshMeltState
*/
struct TALER_EXCHANGE_DenomPublicKey *fresh_pks;
/**
* Array of @a num_fresh_coins of exchange values contributed to the refresh operation
*/
struct TALER_ExchangeWithdrawValues *alg_values;
/**
* Entropy seed for the refresh-melt operation.
*/
struct TALER_PlanchetSecretsP ps;
/**
* Private key of the dirty coin being melted.
*/
@ -337,7 +347,7 @@ static void
reveal_cb (void *cls,
const struct TALER_EXCHANGE_HttpResponse *hr,
unsigned int num_coins,
const struct TALER_PlanchetSecretsP *coin_privs,
const struct TALER_CoinSpendPrivateKeyP *coin_privs,
const struct TALER_DenominationSignature *sigs)
{
struct RefreshRevealState *rrs = cls;
@ -402,6 +412,7 @@ reveal_cb (void *cls,
for (unsigned int i = 0; i<num_coins; i++)
{
struct TALER_TESTING_FreshCoinData *fc = &rrs->fresh_coins[i];
const union TALER_DenominationBlindingKeyP *bks;
if (GNUNET_OK !=
TALER_TESTING_get_trait_denom_pub (melt_cmd,
@ -412,8 +423,17 @@ reveal_cb (void *cls,
TALER_TESTING_interpreter_fail (rrs->is);
return;
}
fc->coin_priv = coin_privs[i].coin_priv;
fc->blinding_key = coin_privs[i].blinding_key;
if (GNUNET_OK !=
TALER_TESTING_get_trait_blinding_key (melt_cmd,
i,
&bks))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (rrs->is);
return;
}
fc->coin_priv = coin_privs[i];
fc->blinding_key = *bks;
TALER_denom_sig_deep_copy (&fc->sig,
&sigs[i]);
}
@ -461,9 +481,13 @@ refresh_reveal_run (void *cls,
TALER_TESTING_interpreter_fail (rrs->is);
return;
}
// FIXME: use trait for 'rms'!
rms = melt_cmd->cls;
rrs->rrh = TALER_EXCHANGE_refreshes_reveal (is->exchange,
rms->refresh_data,
&rms->ps,
&rms->refresh_data,
rms->num_fresh_coins,
rms->alg_values,
rms->noreveal_index,
&reveal_cb,
rrs);
@ -763,6 +787,7 @@ refresh_link_run (void *cls,
/* find reserve_withdraw command */
{
// FIXME: use trait!
rms = melt_cmd->cls;
coin_cmd = TALER_TESTING_interpreter_lookup_command (rls->is,
rms->coin_reference);
@ -856,11 +881,6 @@ do_melt_retry (void *cls)
rms->retry_task = NULL;
rms->is->commands[rms->is->ip].last_req_time
= GNUNET_TIME_absolute_get ();
if (NULL != rms->refresh_data)
{
json_decref (rms->refresh_data);
rms->refresh_data = NULL;
}
melt_run (rms,
NULL,
rms->is);
@ -874,6 +894,9 @@ do_melt_retry (void *cls)
*
* @param cls closure.
* @param hr HTTP response details
* @param num_coins number of fresh coins to be created, length of the @a exchange_vals array, 0 if the operation failed
* @param alg_values array @a num_coins of exchange values contributed to the refresh operation
* @param bks array of @a num_coins blinding keys used to blind the fresh coins
* @param noreveal_index choice by the exchange in the
* cut-and-choose protocol, UINT16_MAX on error.
* @param exchange_pub public key the exchange used for signing.
@ -881,6 +904,9 @@ do_melt_retry (void *cls)
static void
melt_cb (void *cls,
const struct TALER_EXCHANGE_HttpResponse *hr,
unsigned int num_coins,
const struct TALER_ExchangeWithdrawValues *alg_values,
const union TALER_DenominationBlindingKeyP *bks,
uint32_t noreveal_index,
const struct TALER_ExchangePublicKeyP *exchange_pub)
{
@ -929,7 +955,22 @@ melt_cb (void *cls,
TALER_TESTING_interpreter_fail (rms->is);
return;
}
rms->noreveal_index = noreveal_index;
if (MHD_HTTP_OK == hr->http_status)
{
rms->noreveal_index = noreveal_index;
if (num_coins != rms->num_fresh_coins)
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (rms->is);
return;
}
GNUNET_free (rms->alg_values);
rms->alg_values = GNUNET_new_array (num_coins,
struct TALER_ExchangeWithdrawValues);
memcpy (rms->alg_values,
alg_values,
num_coins * sizeof (struct TALER_ExchangeWithdrawValues));
}
if (0 != rms->total_backoff.rel_value_us)
{
GNUNET_log (GNUNET_ERROR_TYPE_INFO,
@ -943,7 +984,8 @@ melt_cb (void *cls,
TALER_LOG_DEBUG ("Doubling the melt (%s)\n",
rms->is->commands[rms->is->ip].label);
rms->rmh = TALER_EXCHANGE_melt (rms->is->exchange,
rms->refresh_data,
&rms->ps,
&rms->refresh_data,
&melt_cb,
rms);
rms->double_melt = GNUNET_NO;
@ -978,6 +1020,7 @@ melt_run (void *cls,
melt_fresh_amounts = default_melt_fresh_amounts;
rms->is = is;
rms->noreveal_index = UINT16_MAX;
TALER_planchet_setup_random (&rms->ps);
for (num_fresh_coins = 0;
NULL != melt_fresh_amounts[num_fresh_coins];
num_fresh_coins++)
@ -994,8 +1037,9 @@ melt_run (void *cls,
const struct TALER_TESTING_Command *coin_command;
if (NULL == (coin_command
= TALER_TESTING_interpreter_lookup_command
(is, rms->coin_reference)))
= TALER_TESTING_interpreter_lookup_command (
is,
rms->coin_reference)))
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (rms->is);
@ -1070,22 +1114,15 @@ melt_run (void *cls,
TALER_denom_pub_deep_copy (&rms->fresh_pks[i].key,
&fresh_pk->key);
} /* end for */
GNUNET_assert (NULL == rms->refresh_data);
rms->refresh_data
= TALER_EXCHANGE_refresh_prepare (rms->melt_priv,
&melt_amount,
melt_sig,
melt_denom_pub,
num_fresh_coins,
rms->fresh_pks);
if (NULL == rms->refresh_data)
{
GNUNET_break (0);
TALER_TESTING_interpreter_fail (rms->is);
return;
}
rms->refresh_data.melt_priv = *rms->melt_priv;
rms->refresh_data.melt_amount = melt_amount;
rms->refresh_data.melt_sig = *melt_sig;
rms->refresh_data.melt_pk = *melt_denom_pub;
rms->refresh_data.fresh_pks = rms->fresh_pks;
rms->refresh_data.fresh_pks_len = num_fresh_coins;
rms->rmh = TALER_EXCHANGE_melt (is->exchange,
rms->refresh_data,
&rms->ps,
&rms->refresh_data,
&melt_cb,
rms);
@ -1132,9 +1169,7 @@ melt_cleanup (void *cls,
TALER_denom_pub_free (&rms->fresh_pks[i].key);
}
GNUNET_free (rms->fresh_pks);
rms->fresh_pks = NULL;
json_decref (rms->refresh_data);
rms->refresh_data = NULL;
GNUNET_free (rms->alg_values);
GNUNET_free (rms->melt_fresh_amounts);
GNUNET_free (rms);
}