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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
|
/* This file is part of libbrandt.
* Copyright (C) 2016 GNUnet e.V.
*
* libbrandt 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 of the License, or (at your option) any later
* version.
*
* libbrandt 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
* libbrandt. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file test_crypto.c
* @brief testing crypto and smc functions.
*/
/* For testing static functions and variables we include the whole source */
#include "crypto.c"
#include "brandt.h"
#include "crypto.h"
#include "test.h"
int
test_smc_2d_array ()
{
gcry_mpi_point_t **array;
uint16_t size1 = 3;
uint16_t size2 = 7;
uint16_t i, j;
array = smc_init2 (size1, size2);
check (array, "memory allocation failed");
for (i = 0; i < size1; i++)
for (j = 0; j < size2; j++)
check (array[i][j], "point has not been initialized");
smc_free2 (array, size1, size2);
}
int
test_smc_zkp_dl ()
{
gcry_mpi_t c = gcry_mpi_new (0);
gcry_mpi_t r = gcry_mpi_new (0);
gcry_mpi_t x = gcry_mpi_new (0);
gcry_mpi_point_t a = gcry_mpi_point_new (0);
gcry_mpi_point_t g = gcry_mpi_point_new (0);
gcry_mpi_point_t v = gcry_mpi_point_new (0);
ec_keypair_create (g, c);
if (0 == tests_run)
{
/* \todo: there has to be a better way to copy a point */
gcry_mpi_ec_mul (g, GCRYMPI_CONST_ONE, ec_gen, ec_ctx);
}
ec_keypair_create_base (v, x, g);
smc_zkp_dl (v, g, x, a, c, r);
check (!smc_zkp_dl_check (v, g, a, c, r), "zkp dl wrong");
check (gcry_mpi_ec_curve_point (a, ec_ctx), "not on curve");
check (gcry_mpi_ec_curve_point (g, ec_ctx), "not on curve");
check (gcry_mpi_ec_curve_point (v, ec_ctx), "not on curve");
gcry_mpi_release (c);
gcry_mpi_release (r);
gcry_mpi_release (x);
gcry_mpi_point_release (a);
gcry_mpi_point_release (g);
gcry_mpi_point_release (v);
}
int
test_smc_zkp_2dle ()
{
gcry_mpi_t c = gcry_mpi_new (0);
gcry_mpi_t r = gcry_mpi_new (0);
gcry_mpi_t x = gcry_mpi_new (0);
gcry_mpi_point_t a = gcry_mpi_point_new (0);
gcry_mpi_point_t b = gcry_mpi_point_new (0);
gcry_mpi_point_t g1 = gcry_mpi_point_new (0);
gcry_mpi_point_t g2 = gcry_mpi_point_new (0);
gcry_mpi_point_t v = gcry_mpi_point_new (0);
gcry_mpi_point_t w = gcry_mpi_point_new (0);
ec_keypair_create (g1, c);
ec_keypair_create (g2, c);
if (0 == tests_run)
{
/* \todo: there has to be a better way to copy a point */
gcry_mpi_ec_mul (g1, GCRYMPI_CONST_ONE, ec_gen, ec_ctx);
gcry_mpi_ec_mul (g2, GCRYMPI_CONST_ONE, ec_gen, ec_ctx);
}
ec_keypair_create_base (v, x, g1);
gcry_mpi_ec_mul (w, x, g2, ec_ctx);
smc_zkp_2dle (v, w, g1, g2, x, a, b, c, r);
check (!smc_zkp_2dle_check (v, w, g1, g2, a, b, c, r), "zkp 2dle wrong");
check (gcry_mpi_ec_curve_point (a, ec_ctx), "not on curve");
check (gcry_mpi_ec_curve_point (b, ec_ctx), "not on curve");
check (gcry_mpi_ec_curve_point (g1, ec_ctx), "not on curve");
check (gcry_mpi_ec_curve_point (g2, ec_ctx), "not on curve");
check (gcry_mpi_ec_curve_point (v, ec_ctx), "not on curve");
check (gcry_mpi_ec_curve_point (w, ec_ctx), "not on curve");
gcry_mpi_release (c);
gcry_mpi_release (r);
gcry_mpi_release (x);
gcry_mpi_point_release (a);
gcry_mpi_point_release (b);
gcry_mpi_point_release (g1);
gcry_mpi_point_release (g2);
gcry_mpi_point_release (v);
gcry_mpi_point_release (w);
}
int
test_smc_zkp_0og ()
{
gcry_mpi_t c = gcry_mpi_new (0);
gcry_mpi_t d1 = gcry_mpi_new (0);
gcry_mpi_t d2 = gcry_mpi_new (0);
gcry_mpi_t r1 = gcry_mpi_new (0);
gcry_mpi_t r2 = gcry_mpi_new (0);
gcry_mpi_point_t y = gcry_mpi_point_new (0);
gcry_mpi_point_t alpha = gcry_mpi_point_new (0);
gcry_mpi_point_t beta = gcry_mpi_point_new (0);
gcry_mpi_point_t a1 = gcry_mpi_point_new (0);
gcry_mpi_point_t a2 = gcry_mpi_point_new (0);
gcry_mpi_point_t b1 = gcry_mpi_point_new (0);
gcry_mpi_point_t b2 = gcry_mpi_point_new (0);
ec_keypair_create (y, c);
smc_zkp_0og (alpha, (tests_run % 2 ? ec_zero : ec_gen), y, beta, a1, a2, b1,
b2, c, d1, d2, r1, r2);
check (!smc_zkp_0og_check (alpha, y, beta, a1, a2, b1, b2, c, d1, d2, r1,
r2), "zkp 0og is wrong");
check (gcry_mpi_ec_curve_point (y, ec_ctx), "not on curve");
check (gcry_mpi_ec_curve_point (alpha, ec_ctx), "not on curve");
check (gcry_mpi_ec_curve_point (beta, ec_ctx), "not on curve");
check (gcry_mpi_ec_curve_point (a1, ec_ctx), "not on curve");
check (gcry_mpi_ec_curve_point (a2, ec_ctx), "not on curve");
check (gcry_mpi_ec_curve_point (b1, ec_ctx), "not on curve");
check (gcry_mpi_ec_curve_point (b2, ec_ctx), "not on curve");
gcry_mpi_release (c);
gcry_mpi_release (d1);
gcry_mpi_release (d2);
gcry_mpi_release (r1);
gcry_mpi_release (r2);
gcry_mpi_point_release (y);
gcry_mpi_point_release (alpha);
gcry_mpi_point_release (beta);
gcry_mpi_point_release (a1);
gcry_mpi_point_release (a2);
gcry_mpi_point_release (b1);
gcry_mpi_point_release (b2);
}
int
main (int argc, char *argv[])
{
int repeat = 8;
BRANDT_init ();
/* tests that need to run only once */
run (test_smc_2d_array);
for (tests_run = 0; tests_run < repeat; tests_run++)
{
run (test_smc_zkp_dl);
run (test_smc_zkp_2dle);
run (test_smc_zkp_0og);
}
return ret;
}
|
