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
|
#include "brandt.h"
#include "crypto.h"
#include "smc.h"
#include "test.h"
extern gcry_mpi_point_t ec_gen;
extern gcry_ctx_t ec_ctx;
int
test_brandt_ec_keypair_create ()
{
gcry_mpi_t skey;
gcry_mpi_point_t pkey1;
gcry_mpi_point_t pkey2 = gcry_mpi_point_new(0);
brandt_ec_keypair_create (&pkey1, &skey);
check(skey, "no sec key created");
check(pkey1, "no pub key created");
check(pkey2, "could not init pkey2");
gcry_mpi_ec_mul(pkey2, skey, ec_gen, ec_ctx);
check(!brandt_ec_point_cmp(pkey1, pkey2), "pkeys do not match");
gcry_mpi_release(skey);
gcry_mpi_point_release(pkey1);
gcry_mpi_point_release(pkey2);
}
int
test_smc_zkp_dl ()
{
static int first = 1;
gcry_mpi_t c;
gcry_mpi_t r;
gcry_mpi_t s;
gcry_mpi_t x;
gcry_mpi_point_t a;
gcry_mpi_point_t g;
gcry_mpi_point_t v = gcry_mpi_point_new(0);
check(v, "no pub key initialized");
brandt_ec_keypair_create (&g, &s);
check(g, "no gen created");
if (first)
{
gcry_mpi_ec_mul(g, GCRYMPI_CONST_ONE, ec_gen, ec_ctx);
first = 0;
}
brandt_ec_skey_create(&x);
check(x, "no sec key created");
gcry_mpi_ec_mul(v, x, g, ec_ctx);
check(v, "no pub key created");
smc_zkp_dl(v, g, x, &a, &c, &r);
check(!smc_zkp_dl_check(v, g, a, c, r), "zkp was false, should be true");
gcry_mpi_release(c);
gcry_mpi_release(r);
gcry_mpi_release(s);
gcry_mpi_release(x);
gcry_mpi_point_release(a);
gcry_mpi_point_release(g);
gcry_mpi_point_release(v);
}
int
main (int argc, char *argv[])
{
int repeat = 50;
int i;
BRANDT_init();
for (i = 0; i < repeat; i++)
{
run(test_brandt_ec_keypair_create);
run(test_smc_zkp_dl);
}
return ret;
}
|
