implement exchange online signing key client library
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@ -1,6 +1,6 @@
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/*
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This file is part of TALER
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Copyright (C) 2014-2018 Taler Systems SA
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Copyright (C) 2014-2020 Taler Systems SA
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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@ -837,7 +837,7 @@ TALER_CRYPTO_helper_denom_connect (
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* @param dh helper process connection
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*/
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void
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TALER_CRYPTO_helper_poll (struct TALER_CRYPTO_DenominationHelper *dh);
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TALER_CRYPTO_helper_denom_poll (struct TALER_CRYPTO_DenominationHelper *dh);
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/**
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@ -898,6 +898,146 @@ TALER_CRYPTO_helper_denom_disconnect (
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struct TALER_CRYPTO_DenominationHelper *dh);
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/**
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* Handle for talking to an online key signing helper.
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*/
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struct TALER_CRYPTO_ExchangeSignHelper;
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/**
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* Function called with information about available keys for signing. Usually
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* only called once per key upon connect. Also called again in case a key is
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* being revoked, in that case with an @a end_time of zero.
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*
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* @param cls closure
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* @param start_time when does the key become available for signing;
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* zero if the key has been revoked or purged
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* @param validity_duration how long does the key remain available for signing;
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* zero if the key has been revoked or purged
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* @param exchange_pub the public key itself, NULL if the key was revoked or purged
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* @param sm_pub public key of the security module, NULL if the key was revoked or purged
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* @param sm_sig signature from the security module, NULL if the key was revoked or purged
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* The signature was already verified against @a sm_pub.
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*/
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typedef void
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(*TALER_CRYPTO_ExchangeKeyStatusCallback)(
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void *cls,
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struct GNUNET_TIME_Absolute start_time,
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struct GNUNET_TIME_Relative validity_duration,
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const struct TALER_ExchangePublicKeyP *exchange_pub,
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const struct TALER_SecurityModulePublicKeyP *sm_pub,
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const struct TALER_SecurityModuleSignatureP *sm_sig);
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/**
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* Initiate connection to an online signing key helper.
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*
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* @param cfg configuration to use
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* @param ekc function to call with key information
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* @param ekc_cls closure for @a ekc
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* @return NULL on error (such as bad @a cfg).
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*/
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struct TALER_CRYPTO_ExchangeSignHelper *
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TALER_CRYPTO_helper_esign_connect (
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const struct GNUNET_CONFIGURATION_Handle *cfg,
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TALER_CRYPTO_ExchangeKeyStatusCallback ekc,
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void *ekc_cls);
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/**
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* Function to call to 'poll' for updates to the available key material.
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* Should be called whenever it is important that the key material status is
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* current, like when handling a "/keys" request. This function basically
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* briefly checks if there are messages from the helper announcing changes to
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* exchange online signing keys.
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*
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* @param esh helper process connection
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*/
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void
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TALER_CRYPTO_helper_esign_poll (struct TALER_CRYPTO_ExchangeSignHelper *esh);
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/**
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* Request helper @a esh to sign @a msg using the current online
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* signing key.
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*
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* This operation will block until the signature has been obtained. Should
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* this process receive a signal (that is not ignored) while the operation is
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* pending, the operation will fail. Note that the helper may still believe
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* that it created the signature. Thus, signals may result in a small
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* differences in the signature counters. Retrying in this case may work.
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*
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* @param esh helper process connection
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* @param purpose message to sign (must extend beyond the purpose)
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* @param[out] exchange_pub set to the public key used for the signature upon success
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* @param[out] exchange_sig set to the signature upon success
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* @return the error code (or #TALER_EC_NONE on success)
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*/
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enum TALER_ErrorCode
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TALER_CRYPTO_helper_esign_sign_ (
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struct TALER_CRYPTO_ExchangeSignHelper *esh,
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const struct GNUNET_CRYPTO_EccSignaturePurpose *purpose,
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struct TALER_ExchangePublicKeyP *exchange_pub,
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struct TALER_ExchangeSignatureP *exchange_sig);
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/**
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* Request helper @a esh to sign @a msg using the current online
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* signing key.
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*
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* This operation will block until the signature has been obtained. Should
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* this process receive a signal (that is not ignored) while the operation is
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* pending, the operation will fail. Note that the helper may still believe
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* that it created the signature. Thus, signals may result in a small
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* differences in the signature counters. Retrying in this case may work.
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*
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* @param esh helper process connection
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* @param ps message to sign (MUST begin with a purpose)
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* @param[out] exchange_pub set to the public key used for the signature upon success
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* @param[out] exchange_sig set to the signature upon success
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* @return the error code (or #TALER_EC_NONE on success)
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*/
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#define TALER_CRYPTO_helper_esign_sign(esh,ps,epub,esig) ( \
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/* check size is set correctly */ \
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GNUNET_assert (ntohl ((ps)->purpose.size) == sizeof (*ps)), \
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/* check 'ps' begins with the purpose */ \
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GNUNET_static_assert (((void*) (ps)) == \
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((void*) &(ps)->purpose)), \
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TALER_CRYPTO_helper_esign_sign_ (esh, \
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&(ps)->purpose, \
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epub, \
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esig) )
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/**
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* Ask the helper to revoke the public key @param exchange_pub.
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* Will cause the helper to tell all clients that the key is now unavailable,
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* and to create a replacement key.
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*
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* This operation will block until the revocation request has been
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* transmitted. Should this process receive a signal (that is not ignored)
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* while the operation is pending, the operation may fail. If the key is
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* unknown, this function will also appear to have succeeded. To be sure that
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* the revocation worked, clients must watch the signing key status callback.
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*
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* @param esh helper to process connection
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* @param exchange_pub the public key to revoke
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*/
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void
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TALER_CRYPTO_helper_esign_revoke (
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struct TALER_CRYPTO_ExchangeSignHelper *esh,
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const struct TALER_ExchangePublicKeyP *exchange_pub);
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/**
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* Close connection to @a esh.
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*
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* @param[in] esh connection to close
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*/
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void
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TALER_CRYPTO_helper_esign_disconnect (
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struct TALER_CRYPTO_ExchangeSignHelper *esh);
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/* **************** /wire account offline signing **************** */
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@ -329,7 +329,7 @@ struct TALER_SigningKeyAnnouncementPS
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/**
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* How long is the key available after @e anchor_time?
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*/
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struct GNUNET_TIME_RelativeNBO duration_withdraw;
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struct GNUNET_TIME_RelativeNBO duration;
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};
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@ -62,6 +62,7 @@ libtalerutil_la_SOURCES = \
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config.c \
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crypto.c \
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crypto_helper_denom.c \
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crypto_helper_esign.c \
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crypto_wire.c \
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getopt.c \
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lang.c \
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@ -234,7 +234,7 @@ TALER_CRYPTO_helper_denom_connect (
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}
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dh->template = template;
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}
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TALER_CRYPTO_helper_poll (dh);
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TALER_CRYPTO_helper_denom_poll (dh);
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return dh;
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}
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@ -350,7 +350,7 @@ handle_mt_purge (struct TALER_CRYPTO_DenominationHelper *dh,
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void
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TALER_CRYPTO_helper_poll (struct TALER_CRYPTO_DenominationHelper *dh)
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TALER_CRYPTO_helper_denom_poll (struct TALER_CRYPTO_DenominationHelper *dh)
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{
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char buf[UINT16_MAX];
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ssize_t ret;
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551
src/util/crypto_helper_esign.c
Normal file
551
src/util/crypto_helper_esign.c
Normal file
@ -0,0 +1,551 @@
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/*
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This file is part of TALER
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Copyright (C) 2020 Taler Systems SA
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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*/
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/**
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* @file util/crypto_helper_esign.c
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* @brief utility functions for running out-of-process private key operations
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* @author Christian Grothoff
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*/
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#include "platform.h"
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#include "taler_util.h"
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#include "taler_signatures.h"
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#include "taler-helper-crypto-eddsa.h"
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struct TALER_CRYPTO_ExchangeSignHelper
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{
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/**
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* Function to call with updates to available key material.
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*/
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TALER_CRYPTO_ExchangeKeyStatusCallback ekc;
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/**
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* Closure for @e ekc
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*/
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void *ekc_cls;
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/**
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* Socket address of the denomination helper process.
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* Used to reconnect if the connection breaks.
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*/
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struct sockaddr_un sa;
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/**
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* Socket address of this process.
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*/
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struct sockaddr_un my_sa;
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/**
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* Template for @e my_sa.
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*/
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char *template;
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/**
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* The UNIX domain socket, -1 if we are currently not connected.
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*/
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int sock;
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};
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/**
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* Disconnect from the helper process. Updates
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* @e sock field in @a esh.
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*
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* @param[in,out] esh handle to tear down connection of
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*/
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static void
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do_disconnect (struct TALER_CRYPTO_ExchangeSignHelper *esh)
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{
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GNUNET_break (0 == close (esh->sock));
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if (0 != unlink (esh->my_sa.sun_path))
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GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING,
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"unlink",
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esh->my_sa.sun_path);
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esh->sock = -1;
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}
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/**
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* Try to connect to the helper process. Updates
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* @e sock field in @a esh.
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*
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* @param[in,out] esh handle to establish connection for
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*/
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static void
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try_connect (struct TALER_CRYPTO_ExchangeSignHelper *esh)
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{
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if (-1 != esh->sock)
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return;
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esh->sock = socket (AF_UNIX,
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SOCK_DGRAM,
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0);
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if (-1 == esh->sock)
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{
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GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING,
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"socket");
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return;
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}
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{
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char *tmpdir;
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tmpdir = GNUNET_DISK_mktemp (esh->template);
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if (NULL == tmpdir)
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{
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do_disconnect (esh);
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return;
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}
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/* we use >= here because we want the sun_path to always
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be 0-terminated */
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if (strlen (tmpdir) >= sizeof (esh->sa.sun_path))
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{
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GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
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"PATHS",
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"TALER_RUNTIME_DIR",
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"path too long");
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GNUNET_free (tmpdir);
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do_disconnect (esh);
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return;
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}
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esh->my_sa.sun_family = AF_UNIX;
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strncpy (esh->my_sa.sun_path,
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tmpdir,
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sizeof (esh->sa.sun_path));
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if (0 != unlink (tmpdir))
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GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING,
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"unlink",
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tmpdir);
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GNUNET_free (tmpdir);
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}
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if (0 != bind (esh->sock,
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(const struct sockaddr *) &esh->my_sa,
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sizeof (esh->my_sa)))
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{
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GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING,
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"bind");
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do_disconnect (esh);
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return;
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}
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{
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struct GNUNET_MessageHeader hdr = {
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.size = htons (sizeof (hdr)),
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.type = htons (TALER_HELPER_EDDSA_MT_REQ_INIT)
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};
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ssize_t ret;
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ret = sendto (esh->sock,
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&hdr,
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sizeof (hdr),
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0,
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(const struct sockaddr *) &esh->sa,
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sizeof (esh->sa));
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if (ret < 0)
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{
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GNUNET_log_strerror_file (GNUNET_ERROR_TYPE_WARNING,
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"sendto",
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esh->sa.sun_path);
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do_disconnect (esh);
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return;
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}
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/* We are using SOCK_DGRAM, partial writes should not be possible */
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GNUNET_break (((size_t) ret) == sizeof (hdr));
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GNUNET_log (GNUNET_ERROR_TYPE_DEBUG,
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"Successfully sent REQ_INIT\n");
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}
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}
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struct TALER_CRYPTO_ExchangeSignHelper *
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TALER_CRYPTO_helper_esign_connect (
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const struct GNUNET_CONFIGURATION_Handle *cfg,
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TALER_CRYPTO_ExchangeKeyStatusCallback ekc,
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void *ekc_cls)
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{
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struct TALER_CRYPTO_ExchangeSignHelper *esh;
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char *unixpath;
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if (GNUNET_OK !=
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GNUNET_CONFIGURATION_get_value_filename (cfg,
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"taler-helper-crypto-eddsa",
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"UNIXPATH",
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&unixpath))
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{
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GNUNET_log_config_missing (GNUNET_ERROR_TYPE_ERROR,
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"taler-helper-crypto-eddsa",
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"UNIXPATH");
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return NULL;
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}
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/* we use >= here because we want the sun_path to always
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be 0-terminated */
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if (strlen (unixpath) >= sizeof (esh->sa.sun_path))
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{
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GNUNET_log_config_invalid (GNUNET_ERROR_TYPE_ERROR,
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"taler-helper-crypto-eddsa",
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"UNIXPATH",
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"path too long");
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GNUNET_free (unixpath);
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return NULL;
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}
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esh = GNUNET_new (struct TALER_CRYPTO_ExchangeSignHelper);
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esh->ekc = ekc;
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esh->ekc_cls = ekc_cls;
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esh->sa.sun_family = AF_UNIX;
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strncpy (esh->sa.sun_path,
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unixpath,
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sizeof (esh->sa.sun_path));
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esh->sock = -1;
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{
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char *tmpdir;
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char *template;
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if (GNUNET_OK !=
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GNUNET_CONFIGURATION_get_value_filename (cfg,
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"PATHS",
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"TALER_RUNTIME_DIR",
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&tmpdir))
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{
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GNUNET_log_config_missing (GNUNET_ERROR_TYPE_WARNING,
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"PATHS",
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"TALER_RUNTIME_DIR");
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tmpdir = GNUNET_strdup ("/tmp");
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}
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GNUNET_asprintf (&template,
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"%s/crypto-eddsa-client/XXXXXX",
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tmpdir);
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GNUNET_free (tmpdir);
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if (GNUNET_OK !=
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GNUNET_DISK_directory_create_for_file (template))
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{
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GNUNET_free (esh);
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GNUNET_free (template);
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return NULL;
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}
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esh->template = template;
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}
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TALER_CRYPTO_helper_esign_poll (esh);
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return esh;
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}
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/**
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* Handle a #TALER_HELPER_EDDSA_MT_AVAIL message from the helper.
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*
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* @param esh helper context
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* @param hdr message that we received
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* @return #GNUNET_OK on success
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*/
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static int
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handle_mt_avail (struct TALER_CRYPTO_ExchangeSignHelper *esh,
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const struct GNUNET_MessageHeader *hdr)
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{
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const struct TALER_CRYPTO_EddsaKeyAvailableNotification *kan
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= (const struct TALER_CRYPTO_EddsaKeyAvailableNotification *) hdr;
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if (sizeof (*kan) != ntohs (hdr->size))
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{
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GNUNET_break_op (0);
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return GNUNET_SYSERR;
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}
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{
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struct TALER_SigningKeyAnnouncementPS ska = {
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.purpose.purpose = htonl (TALER_SIGNATURE_SM_SIGNING_KEY),
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.purpose.size = htonl (sizeof (ska)),
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.exchange_pub = kan->exchange_pub,
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.anchor_time = kan->anchor_time,
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.duration = kan->duration
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};
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if (GNUNET_OK !=
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GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_SM_SIGNING_KEY,
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&ska,
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&kan->secm_sig.eddsa_signature,
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&kan->secm_pub.eddsa_pub))
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{
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GNUNET_break_op (0);
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return GNUNET_SYSERR;
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}
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esh->ekc (esh->ekc_cls,
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GNUNET_TIME_absolute_ntoh (kan->anchor_time),
|
||||
GNUNET_TIME_relative_ntoh (kan->duration),
|
||||
&kan->exchange_pub,
|
||||
&kan->secm_pub,
|
||||
&kan->secm_sig);
|
||||
}
|
||||
return GNUNET_OK;
|
||||
}
|
||||
|
||||
|
||||
/**
|
||||
* Handle a #TALER_HELPER_EDDSA_MT_PURGE message from the helper.
|
||||
*
|
||||
* @param esh helper context
|
||||
* @param hdr message that we received
|
||||
* @return #GNUNET_OK on success
|
||||
*/
|
||||
static int
|
||||
handle_mt_purge (struct TALER_CRYPTO_ExchangeSignHelper *esh,
|
||||
const struct GNUNET_MessageHeader *hdr)
|
||||
{
|
||||
const struct TALER_CRYPTO_EddsaKeyPurgeNotification *pn
|
||||
= (const struct TALER_CRYPTO_EddsaKeyPurgeNotification *) hdr;
|
||||
|
||||
if (sizeof (*pn) != ntohs (hdr->size))
|
||||
{
|
||||
GNUNET_break_op (0);
|
||||
return GNUNET_SYSERR;
|
||||
}
|
||||
esh->ekc (esh->ekc_cls,
|
||||
GNUNET_TIME_UNIT_ZERO_ABS,
|
||||
GNUNET_TIME_UNIT_ZERO,
|
||||
&pn->exchange_pub,
|
||||
NULL,
|
||||
NULL);
|
||||
return GNUNET_OK;
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
TALER_CRYPTO_helper_esign_poll (struct TALER_CRYPTO_ExchangeSignHelper *esh)
|
||||
{
|
||||
char buf[UINT16_MAX];
|
||||
ssize_t ret;
|
||||
const struct GNUNET_MessageHeader *hdr
|
||||
= (const struct GNUNET_MessageHeader *) buf;
|
||||
|
||||
try_connect (esh);
|
||||
if (-1 == esh->sock)
|
||||
return; /* give up */
|
||||
while (1)
|
||||
{
|
||||
ret = recv (esh->sock,
|
||||
buf,
|
||||
sizeof (buf),
|
||||
MSG_DONTWAIT);
|
||||
if (ret < 0)
|
||||
{
|
||||
if (EAGAIN == errno)
|
||||
break;
|
||||
GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING,
|
||||
"recv");
|
||||
do_disconnect (esh);
|
||||
return;
|
||||
}
|
||||
|
||||
if ( (ret < sizeof (struct GNUNET_MessageHeader)) ||
|
||||
(ret != ntohs (hdr->size)) )
|
||||
{
|
||||
GNUNET_break_op (0);
|
||||
do_disconnect (esh);
|
||||
return;
|
||||
}
|
||||
switch (ntohs (hdr->type))
|
||||
{
|
||||
case TALER_HELPER_EDDSA_MT_AVAIL:
|
||||
if (GNUNET_OK !=
|
||||
handle_mt_avail (esh,
|
||||
hdr))
|
||||
{
|
||||
GNUNET_break_op (0);
|
||||
do_disconnect (esh);
|
||||
return;
|
||||
}
|
||||
break;
|
||||
case TALER_HELPER_EDDSA_MT_PURGE:
|
||||
if (GNUNET_OK !=
|
||||
handle_mt_purge (esh,
|
||||
hdr))
|
||||
{
|
||||
GNUNET_break_op (0);
|
||||
do_disconnect (esh);
|
||||
return;
|
||||
}
|
||||
break;
|
||||
default:
|
||||
GNUNET_break_op (0);
|
||||
do_disconnect (esh);
|
||||
return;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
enum TALER_ErrorCode
|
||||
TALER_CRYPTO_helper_esign_sign_ (
|
||||
struct TALER_CRYPTO_ExchangeSignHelper *esh,
|
||||
const struct GNUNET_CRYPTO_EccSignaturePurpose *purpose,
|
||||
struct TALER_ExchangePublicKeyP *exchange_pub,
|
||||
struct TALER_ExchangeSignatureP *exchange_sig)
|
||||
{
|
||||
{
|
||||
uint32_t purpose_size = ntohl (purpose->size);
|
||||
char buf[sizeof (struct TALER_CRYPTO_EddsaSignRequest) + purpose_size
|
||||
- sizeof (struct GNUNET_CRYPTO_EccSignaturePurpose)];
|
||||
struct TALER_CRYPTO_EddsaSignRequest *sr
|
||||
= (struct TALER_CRYPTO_EddsaSignRequest *) buf;
|
||||
ssize_t ret;
|
||||
|
||||
try_connect (esh);
|
||||
if (-1 == esh->sock)
|
||||
return TALER_EC_EXCHANGE_SIGNKEY_HELPER_UNAVAILABLE;
|
||||
sr->header.size = htons (sizeof (buf));
|
||||
sr->header.type = htons (TALER_HELPER_EDDSA_MT_REQ_SIGN);
|
||||
sr->reserved = htonl (0);
|
||||
memcpy (&sr->purpose,
|
||||
purpose,
|
||||
purpose_size);
|
||||
ret = sendto (esh->sock,
|
||||
buf,
|
||||
sizeof (buf),
|
||||
0,
|
||||
&esh->sa,
|
||||
sizeof (esh->sa));
|
||||
if (ret < 0)
|
||||
{
|
||||
GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING,
|
||||
"sendto");
|
||||
do_disconnect (esh);
|
||||
return TALER_EC_EXCHANGE_SIGNKEY_HELPER_UNAVAILABLE;
|
||||
}
|
||||
/* We are using SOCK_DGRAM, partial writes should not be possible */
|
||||
GNUNET_break (((size_t) ret) == sizeof (buf));
|
||||
}
|
||||
|
||||
while (1)
|
||||
{
|
||||
char buf[UINT16_MAX];
|
||||
ssize_t ret;
|
||||
const struct GNUNET_MessageHeader *hdr
|
||||
= (const struct GNUNET_MessageHeader *) buf;
|
||||
|
||||
ret = recv (esh->sock,
|
||||
buf,
|
||||
sizeof (buf),
|
||||
0);
|
||||
if (ret < 0)
|
||||
{
|
||||
GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING,
|
||||
"recv");
|
||||
do_disconnect (esh);
|
||||
return TALER_EC_EXCHANGE_SIGNKEY_HELPER_UNAVAILABLE;
|
||||
}
|
||||
if ( (ret < sizeof (struct GNUNET_MessageHeader)) ||
|
||||
(ret != ntohs (hdr->size)) )
|
||||
{
|
||||
GNUNET_break_op (0);
|
||||
do_disconnect (esh);
|
||||
return TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG;
|
||||
}
|
||||
switch (ntohs (hdr->type))
|
||||
{
|
||||
case TALER_HELPER_EDDSA_MT_RES_SIGNATURE:
|
||||
if (ret != sizeof (struct TALER_CRYPTO_EddsaSignResponse))
|
||||
{
|
||||
GNUNET_break_op (0);
|
||||
do_disconnect (esh);
|
||||
return TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG;
|
||||
}
|
||||
{
|
||||
const struct TALER_CRYPTO_EddsaSignResponse *sr =
|
||||
(const struct TALER_CRYPTO_EddsaSignResponse *) buf;
|
||||
*exchange_sig = sr->exchange_sig;
|
||||
*exchange_pub = sr->exchange_pub;
|
||||
return TALER_EC_NONE;
|
||||
}
|
||||
case TALER_HELPER_EDDSA_MT_RES_SIGN_FAILURE:
|
||||
if (ret != sizeof (struct TALER_CRYPTO_EddsaSignFailure))
|
||||
{
|
||||
GNUNET_break_op (0);
|
||||
do_disconnect (esh);
|
||||
return TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG;
|
||||
}
|
||||
{
|
||||
const struct TALER_CRYPTO_EddsaSignFailure *sf =
|
||||
(const struct TALER_CRYPTO_EddsaSignFailure *) buf;
|
||||
|
||||
return (enum TALER_ErrorCode) ntohl (sf->ec);
|
||||
}
|
||||
case TALER_HELPER_EDDSA_MT_AVAIL:
|
||||
if (GNUNET_OK !=
|
||||
handle_mt_avail (esh,
|
||||
hdr))
|
||||
{
|
||||
GNUNET_break_op (0);
|
||||
do_disconnect (esh);
|
||||
return TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG;
|
||||
}
|
||||
break; /* while(1) loop ensures we recvfrom() again */
|
||||
case TALER_HELPER_EDDSA_MT_PURGE:
|
||||
if (GNUNET_OK !=
|
||||
handle_mt_purge (esh,
|
||||
hdr))
|
||||
{
|
||||
GNUNET_break_op (0);
|
||||
do_disconnect (esh);
|
||||
return TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG;
|
||||
}
|
||||
break; /* while(1) loop ensures we recvfrom() again */
|
||||
default:
|
||||
GNUNET_break_op (0);
|
||||
do_disconnect (esh);
|
||||
return TALER_EC_EXCHANGE_SIGNKEY_HELPER_BUG;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
TALER_CRYPTO_helper_esign_revoke (
|
||||
struct TALER_CRYPTO_ExchangeSignHelper *esh,
|
||||
const struct TALER_ExchangePublicKeyP *exchange_pub)
|
||||
{
|
||||
struct TALER_CRYPTO_EddsaRevokeRequest rr = {
|
||||
.header.size = htons (sizeof (rr)),
|
||||
.header.type = htons (TALER_HELPER_EDDSA_MT_REQ_REVOKE),
|
||||
.exchange_pub = *exchange_pub
|
||||
};
|
||||
ssize_t ret;
|
||||
|
||||
try_connect (esh);
|
||||
if (-1 == esh->sock)
|
||||
return; /* give up */
|
||||
ret = sendto (esh->sock,
|
||||
&rr,
|
||||
sizeof (rr),
|
||||
0,
|
||||
(const struct sockaddr *) &esh->sa,
|
||||
sizeof (esh->sa));
|
||||
if (ret < 0)
|
||||
{
|
||||
GNUNET_log_strerror (GNUNET_ERROR_TYPE_WARNING,
|
||||
"sendto");
|
||||
do_disconnect (esh);
|
||||
return;
|
||||
}
|
||||
/* We are using SOCK_DGRAM, partial writes should not be possible */
|
||||
GNUNET_break (((size_t) ret) == sizeof (rr));
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
TALER_CRYPTO_helper_esign_disconnect (
|
||||
struct TALER_CRYPTO_ExchangeSignHelper *esh)
|
||||
{
|
||||
do_disconnect (esh);
|
||||
GNUNET_free (esh->template);
|
||||
GNUNET_free (esh);
|
||||
}
|
||||
|
||||
|
||||
/* end of crypto_helper_esign.c */
|
@ -495,7 +495,7 @@ handle_done (void *cls)
|
||||
GNUNET_assert (0 == pthread_mutex_unlock (&done_lock));
|
||||
if (TALER_EC_NONE != wi->ec)
|
||||
{
|
||||
struct TALER_CRYPTO_SignFailure sf = {
|
||||
struct TALER_CRYPTO_EddsaSignFailure sf = {
|
||||
.header.size = htons (sizeof (sf)),
|
||||
.header.type = htons (TALER_HELPER_EDDSA_MT_RES_SIGN_FAILURE),
|
||||
.ec = htonl (wi->ec)
|
||||
@ -509,7 +509,7 @@ handle_done (void *cls)
|
||||
}
|
||||
else
|
||||
{
|
||||
struct TALER_CRYPTO_SignResponse sr = {
|
||||
struct TALER_CRYPTO_EddsaSignResponse sr = {
|
||||
.header.size = htons (sizeof (sr)),
|
||||
.header.type = htons (TALER_HELPER_EDDSA_MT_RES_SIGNATURE),
|
||||
.exchange_pub = wi->key->exchange_pub,
|
||||
@ -548,7 +548,7 @@ handle_done (void *cls)
|
||||
static void
|
||||
handle_sign_request (const struct sockaddr_un *addr,
|
||||
socklen_t addr_size,
|
||||
const struct TALER_CRYPTO_SignRequest *sr)
|
||||
const struct TALER_CRYPTO_EddsaSignRequest *sr)
|
||||
{
|
||||
const struct GNUNET_CRYPTO_EccSignaturePurpose *purpose = &sr->purpose;
|
||||
struct WorkItem *wi;
|
||||
@ -557,7 +557,7 @@ handle_sign_request (const struct sockaddr_un *addr,
|
||||
|
||||
if (purpose_size != htonl (purpose->size))
|
||||
{
|
||||
struct TALER_CRYPTO_SignFailure sf = {
|
||||
struct TALER_CRYPTO_EddsaSignFailure sf = {
|
||||
.header.size = htons (sizeof (sr)),
|
||||
.header.type = htons (TALER_HELPER_EDDSA_MT_RES_SIGN_FAILURE),
|
||||
.ec = htonl (TALER_EC_GENERIC_PARAMETER_MALFORMED)
|
||||
@ -606,7 +606,7 @@ notify_client_key_add (struct Client *client,
|
||||
.purpose.size = htonl (sizeof (ska)),
|
||||
.exchange_pub = key->exchange_pub,
|
||||
.anchor_time = GNUNET_TIME_absolute_hton (key->anchor),
|
||||
.duration_withdraw = GNUNET_TIME_relative_hton (duration)
|
||||
.duration = GNUNET_TIME_relative_hton (duration)
|
||||
};
|
||||
struct TALER_CRYPTO_EddsaKeyAvailableNotification an = {
|
||||
.header.size = htons (sizeof (an)),
|
||||
@ -743,7 +743,7 @@ setup_key (struct Key *key,
|
||||
static void
|
||||
handle_revoke_request (const struct sockaddr_un *addr,
|
||||
socklen_t addr_size,
|
||||
const struct TALER_CRYPTO_RevokeRequest *rr)
|
||||
const struct TALER_CRYPTO_EddsaRevokeRequest *rr)
|
||||
{
|
||||
struct Key *key;
|
||||
struct Key *nkey;
|
||||
@ -884,24 +884,25 @@ read_job (void *cls)
|
||||
}
|
||||
break;
|
||||
case TALER_HELPER_EDDSA_MT_REQ_SIGN:
|
||||
if (ntohs (hdr->size) <= sizeof (struct TALER_CRYPTO_SignRequest))
|
||||
if (ntohs (hdr->size) < sizeof (struct TALER_CRYPTO_EddsaSignRequest))
|
||||
{
|
||||
GNUNET_break_op (0);
|
||||
return;
|
||||
}
|
||||
handle_sign_request (&addr,
|
||||
addr_size,
|
||||
(const struct TALER_CRYPTO_SignRequest *) buf);
|
||||
(const struct TALER_CRYPTO_EddsaSignRequest *) buf);
|
||||
break;
|
||||
case TALER_HELPER_EDDSA_MT_REQ_REVOKE:
|
||||
if (ntohs (hdr->size) != sizeof (struct TALER_CRYPTO_RevokeRequest))
|
||||
if (ntohs (hdr->size) != sizeof (struct TALER_CRYPTO_EddsaRevokeRequest))
|
||||
{
|
||||
GNUNET_break_op (0);
|
||||
return;
|
||||
}
|
||||
handle_revoke_request (&addr,
|
||||
addr_size,
|
||||
(const struct TALER_CRYPTO_RevokeRequest *) buf);
|
||||
(const struct
|
||||
TALER_CRYPTO_EddsaRevokeRequest *) buf);
|
||||
break;
|
||||
default:
|
||||
GNUNET_break_op (0);
|
||||
|
@ -103,7 +103,7 @@ struct TALER_CRYPTO_EddsaKeyPurgeNotification
|
||||
/**
|
||||
* Message sent if a signature is requested.
|
||||
*/
|
||||
struct TALER_CRYPTO_SignRequest
|
||||
struct TALER_CRYPTO_EddsaSignRequest
|
||||
{
|
||||
/**
|
||||
* Type is #TALER_HELPER_EDDSA_MT_REQ_SIGN.
|
||||
@ -127,7 +127,7 @@ struct TALER_CRYPTO_SignRequest
|
||||
/**
|
||||
* Message sent if a key was revoked.
|
||||
*/
|
||||
struct TALER_CRYPTO_RevokeRequest
|
||||
struct TALER_CRYPTO_EddsaRevokeRequest
|
||||
{
|
||||
/**
|
||||
* Type is #TALER_HELPER_EDDSA_MT_REQ_REVOKE.
|
||||
@ -150,7 +150,7 @@ struct TALER_CRYPTO_RevokeRequest
|
||||
/**
|
||||
* Message sent if a signature was successfully computed.
|
||||
*/
|
||||
struct TALER_CRYPTO_SignResponse
|
||||
struct TALER_CRYPTO_EddsaSignResponse
|
||||
{
|
||||
/**
|
||||
* Type is #TALER_HELPER_EDDSA_MT_RES_SIGNATURE.
|
||||
@ -178,7 +178,7 @@ struct TALER_CRYPTO_SignResponse
|
||||
/**
|
||||
* Message sent if signing failed.
|
||||
*/
|
||||
struct TALER_CRYPTO_SignFailure
|
||||
struct TALER_CRYPTO_EddsaSignFailure
|
||||
{
|
||||
/**
|
||||
* Type is #TALER_HELPER_EDDSA_MT_RES_SIGN_FAILURE.
|
||||
|
@ -196,7 +196,7 @@ test_revocation (struct TALER_CRYPTO_DenominationHelper *dh)
|
||||
&keys[j].h_denom_pub);
|
||||
for (unsigned int k = 0; k<1000; k++)
|
||||
{
|
||||
TALER_CRYPTO_helper_poll (dh);
|
||||
TALER_CRYPTO_helper_denom_poll (dh);
|
||||
if (! keys[j].revoked)
|
||||
break;
|
||||
nanosleep (&req, NULL);
|
||||
@ -387,7 +387,7 @@ perf_signing (struct TALER_CRYPTO_DenominationHelper *dh)
|
||||
duration = GNUNET_TIME_UNIT_ZERO;
|
||||
for (unsigned int j = 0; j<NUM_SIGN_TESTS;)
|
||||
{
|
||||
TALER_CRYPTO_helper_poll (dh);
|
||||
TALER_CRYPTO_helper_denom_poll (dh);
|
||||
for (unsigned int i = 0; i<MAX_KEYS; i++)
|
||||
{
|
||||
if (! keys[i].valid)
|
||||
@ -476,7 +476,7 @@ run_test (void)
|
||||
fprintf (stderr, "Waiting for helper to start ");
|
||||
for (unsigned int i = 0; i<1000; i++)
|
||||
{
|
||||
TALER_CRYPTO_helper_poll (dh);
|
||||
TALER_CRYPTO_helper_denom_poll (dh);
|
||||
if (0 != num_keys)
|
||||
break;
|
||||
nanosleep (&req, NULL);
|
||||
|
Loading…
Reference in New Issue
Block a user