1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/*
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 (void)
{
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 (void)
{
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[])
{
(void) argc;
(void) argv;
if (0 != test_high_level ())
return 1;
if (0 != test_planchets ())
return 1;
return 0;
}
/* end of test_crypto.c */
|
