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
|
#ifndef OPENSSL_EXPERIMENTAL_JPAKE
#include <stdio.h>
int main(int argc, char *argv[])
{
printf("No J-PAKE support\n");
return(0);
}
#else
#include <openssl/jpake.h>
#include <openssl/err.h>
static void showbn(const char *name, const BIGNUM *bn)
{
fputs(name, stdout);
fputs(" = ", stdout);
BN_print_fp(stdout, bn);
putc('\n', stdout);
}
static int run_jpake(JPAKE_CTX *alice, JPAKE_CTX *bob)
{
JPAKE_STEP1 alice_s1;
JPAKE_STEP1 bob_s1;
JPAKE_STEP2 alice_s2;
JPAKE_STEP2 bob_s2;
JPAKE_STEP3A alice_s3a;
JPAKE_STEP3B bob_s3b;
/* Alice -> Bob: step 1 */
puts("A->B s1");
JPAKE_STEP1_init(&alice_s1);
JPAKE_STEP1_generate(&alice_s1, alice);
if(!JPAKE_STEP1_process(bob, &alice_s1))
{
printf("Bob fails to process Alice's step 1\n");
ERR_print_errors_fp(stdout);
return 1;
}
JPAKE_STEP1_release(&alice_s1);
/* Bob -> Alice: step 1 */
puts("B->A s1");
JPAKE_STEP1_init(&bob_s1);
JPAKE_STEP1_generate(&bob_s1, bob);
if(!JPAKE_STEP1_process(alice, &bob_s1))
{
printf("Alice fails to process Bob's step 1\n");
ERR_print_errors_fp(stdout);
return 2;
}
JPAKE_STEP1_release(&bob_s1);
/* Alice -> Bob: step 2 */
puts("A->B s2");
JPAKE_STEP2_init(&alice_s2);
JPAKE_STEP2_generate(&alice_s2, alice);
if(!JPAKE_STEP2_process(bob, &alice_s2))
{
printf("Bob fails to process Alice's step 2\n");
ERR_print_errors_fp(stdout);
return 3;
}
JPAKE_STEP2_release(&alice_s2);
/* Bob -> Alice: step 2 */
puts("B->A s2");
JPAKE_STEP2_init(&bob_s2);
JPAKE_STEP2_generate(&bob_s2, bob);
if(!JPAKE_STEP2_process(alice, &bob_s2))
{
printf("Alice fails to process Bob's step 2\n");
ERR_print_errors_fp(stdout);
return 4;
}
JPAKE_STEP2_release(&bob_s2);
showbn("Alice's key", JPAKE_get_shared_key(alice));
showbn("Bob's key ", JPAKE_get_shared_key(bob));
/* Alice -> Bob: step 3a */
puts("A->B s3a");
JPAKE_STEP3A_init(&alice_s3a);
JPAKE_STEP3A_generate(&alice_s3a, alice);
if(!JPAKE_STEP3A_process(bob, &alice_s3a))
{
printf("Bob fails to process Alice's step 3a\n");
ERR_print_errors_fp(stdout);
return 5;
}
JPAKE_STEP3A_release(&alice_s3a);
/* Bob -> Alice: step 3b */
puts("B->A s3b");
JPAKE_STEP3B_init(&bob_s3b);
JPAKE_STEP3B_generate(&bob_s3b, bob);
if(!JPAKE_STEP3B_process(alice, &bob_s3b))
{
printf("Alice fails to process Bob's step 3b\n");
ERR_print_errors_fp(stdout);
return 6;
}
JPAKE_STEP3B_release(&bob_s3b);
return 0;
}
int main(int argc, char **argv)
{
JPAKE_CTX *alice;
JPAKE_CTX *bob;
BIGNUM *p = NULL;
BIGNUM *g = NULL;
BIGNUM *q = NULL;
BIGNUM *secret = BN_new();
BIO *bio_err;
bio_err = BIO_new_fp(stderr, BIO_NOCLOSE);
CRYPTO_malloc_debug_init();
CRYPTO_dbg_set_options(V_CRYPTO_MDEBUG_ALL);
CRYPTO_mem_ctrl(CRYPTO_MEM_CHECK_ON);
ERR_load_crypto_strings();
/*
BN_hex2bn(&p, "fd7f53811d75122952df4a9c2eece4e7f611b7523cef4400c31e3f80b6512669455d402251fb593d8d58fabfc5f5ba30f6cb9b556cd7813b801d346ff26660b76b9950a5a49f9fe8047b1022c24fbba9d7feb7c61bf83b57e7c6a8a6150f04fb83f6d3c51ec3023554135a169132f675f3ae2b61d72aeff22203199dd14801c7");
BN_hex2bn(&g, "f7e1a085d69b3ddecbbcab5c36b857b97994afbbfa3aea82f9574c0b3d0782675159578ebad4594fe67107108180b449167123e84c281613b7cf09328cc8a6e13c167a8b547c8d28e0a3ae1e2bb3a675916ea37f0bfa213562f1fb627a01243bcca4f1bea8519089a883dfe15ae59f06928b665e807b552564014c3bfecf492a");
BN_hex2bn(&q, "9760508f15230bccb292b982a2eb840bf0581cf5");
*/
/*
p = BN_new();
BN_generate_prime(p, 1024, 1, NULL, NULL, NULL, NULL);
*/
/* Use a safe prime for p (that we found earlier) */
BN_hex2bn(&p, "F9E5B365665EA7A05A9C534502780FEE6F1AB5BD4F49947FD036DBD7E905269AF46EF28B0FC07487EE4F5D20FB3C0AF8E700F3A2FA3414970CBED44FEDFF80CE78D800F184BB82435D137AADA2C6C16523247930A63B85661D1FC817A51ACD96168E95898A1F83A79FFB529368AA7833ABD1B0C3AEDDB14D2E1A2F71D99F763F");
showbn("p", p);
g = BN_new();
BN_set_word(g, 2);
showbn("g", g);
q = BN_new();
BN_rshift1(q, p);
showbn("q", q);
BN_rand(secret, 32, -1, 0);
/* A normal run, expect this to work... */
alice = JPAKE_CTX_new("Alice", "Bob", p, g, q, secret);
bob = JPAKE_CTX_new("Bob", "Alice", p, g, q, secret);
if(run_jpake(alice, bob) != 0)
{
fprintf(stderr, "Plain JPAKE run failed\n");
return 1;
}
JPAKE_CTX_free(bob);
JPAKE_CTX_free(alice);
/* Now give Alice and Bob different secrets */
alice = JPAKE_CTX_new("Alice", "Bob", p, g, q, secret);
BN_add_word(secret, 1);
bob = JPAKE_CTX_new("Bob", "Alice", p, g, q, secret);
if(run_jpake(alice, bob) != 5)
{
fprintf(stderr, "Mismatched secret JPAKE run failed\n");
return 1;
}
JPAKE_CTX_free(bob);
JPAKE_CTX_free(alice);
BN_free(secret);
BN_free(q);
BN_free(g);
BN_free(p);
CRYPTO_cleanup_all_ex_data();
ERR_remove_state(0);
ERR_free_strings();
CRYPTO_mem_leaks(bio_err);
return 0;
}
#endif
|