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/*
This file is part of TALER
(C) 2015 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/test_crypto.c
* @brief Tests for Taler-specific crypto logic
* @author Christian Grothoff <christian@grothoff.org>
*/
#include "platform.h"
#include "taler_util.h"
#include "taler_crypto_lib.h"
/**
* Test high-level link encryption/decryption API.
*
* @return 0 on success
*/
static int
test_high_level ()
{
struct GNUNET_CRYPTO_EddsaPrivateKey *pk;
struct TALER_CoinSpendPrivateKeyP coin_priv;
struct TALER_CoinSpendPublicKeyP coin_pub;
struct GNUNET_CRYPTO_EcdhePrivateKey *pk2;
struct TALER_TransferPrivateKeyP trans_priv;
struct TALER_TransferPublicKeyP trans_pub;
struct TALER_TransferSecretP secret;
struct TALER_TransferSecretP secret2;
struct TALER_PlanchetSecretsP fc1;
struct TALER_PlanchetSecretsP fc2;
pk = GNUNET_CRYPTO_eddsa_key_create ();
coin_priv.eddsa_priv = *pk;
GNUNET_free (pk);
GNUNET_CRYPTO_eddsa_key_get_public (&coin_priv.eddsa_priv,
&coin_pub.eddsa_pub);
pk2 = GNUNET_CRYPTO_ecdhe_key_create ();
trans_priv.ecdhe_priv = *pk2;
GNUNET_free (pk2);
GNUNET_CRYPTO_ecdhe_key_get_public (&trans_priv.ecdhe_priv,
&trans_pub.ecdhe_pub);
TALER_link_derive_transfer_secret (&coin_priv,
&trans_priv,
&secret);
TALER_link_reveal_transfer_secret (&trans_priv,
&coin_pub,
&secret2);
GNUNET_assert (0 ==
GNUNET_memcmp (&secret,
&secret2));
TALER_link_recover_transfer_secret (&trans_pub,
&coin_priv,
&secret2);
GNUNET_assert (0 ==
GNUNET_memcmp (&secret,
&secret2));
TALER_planchet_setup_refresh (&secret,
0,
&fc1);
TALER_planchet_setup_refresh (&secret,
1,
&fc2);
GNUNET_assert (0 !=
GNUNET_memcmp (&fc1,
&fc2));
return 0;
}
/**
* Test the basic planchet functionality of creating a fresh planchet
* and extracting the respective signature.
*
* @return 0 on success
*/
static int
test_planchets ()
{
struct TALER_PlanchetSecretsP ps;
struct TALER_DenominationPrivateKey dk_priv;
struct TALER_DenominationPublicKey dk_pub;
struct TALER_PlanchetDetail pd;
struct GNUNET_CRYPTO_RsaSignature *blind_sig;
struct TALER_FreshCoin coin;
dk_priv.rsa_private_key = GNUNET_CRYPTO_rsa_private_key_create (1024);
dk_pub.rsa_public_key = GNUNET_CRYPTO_rsa_private_key_get_public (
dk_priv.rsa_private_key);
TALER_planchet_setup_random (&ps);
GNUNET_assert (GNUNET_OK ==
TALER_planchet_prepare (&dk_pub,
&ps,
&pd));
blind_sig = GNUNET_CRYPTO_rsa_sign_blinded (dk_priv.rsa_private_key,
pd.coin_ev,
pd.coin_ev_size);
GNUNET_assert (NULL != blind_sig);
GNUNET_assert (GNUNET_OK ==
TALER_planchet_to_coin (&dk_pub,
blind_sig,
&ps,
&pd.c_hash,
&coin));
GNUNET_CRYPTO_rsa_signature_free (blind_sig);
GNUNET_CRYPTO_rsa_signature_free (coin.sig.rsa_signature);
GNUNET_CRYPTO_rsa_private_key_free (dk_priv.rsa_private_key);
GNUNET_CRYPTO_rsa_public_key_free (dk_pub.rsa_public_key);
return 0;
}
int
main (int argc,
const char *const argv[])
{
if (0 != test_high_level ())
return 1;
if (0 != test_planchets ())
return 1;
return 0;
}
/* end of test_crypto.c */
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