-
Notifications
You must be signed in to change notification settings - Fork 3
/
ecjpaketest.c
328 lines (287 loc) · 9.97 KB
/
ecjpaketest.c
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
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
/*
*
* Copyright (c) 2017 Google LLC.
* All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <openssl/opensslconf.h>
#ifdef OPENSSL_NO_ECJPAKE
# include <stdio.h>
int main(int argc, char *argv[])
{
printf("No EC J-PAKE support\n");
return(0);
}
#else
# include <openssl/ecjpake.h>
# include <openssl/crypto.h>
# include <openssl/bio.h>
# include <openssl/rand.h>
# include <openssl/obj_mac.h>
# include <openssl/err.h>
# include <memory.h>
static void showkey(const char *name, const unsigned char *key)
{
int i;
fputs(name, stdout);
fputs(" = ", stdout);
for (i = 0; i < SHA256_DIGEST_LENGTH; i++)
fprintf(stdout, "%02X", key[i]);
putc('\n', stdout);
}
static const char rnd_seed[] =
"string to make the random number generator think it has entropy";
/* generates random length value in a range [len_bottom, len_top] */
static int generate_rand_len(size_t *rand_len,
unsigned int len_bottom,
unsigned int len_top)
{
if (len_top > 0xffff || len_bottom > len_top)
return 0;
if (!RAND_bytes((unsigned char *)(rand_len), sizeof(size_t)))
return 0;
*rand_len = *rand_len % (len_top - len_bottom + 1) + len_bottom;
return 1;
}
static int run_ecjpake(ECJPAKE_CTX *alice, ECJPAKE_CTX *bob)
{
ECJPAKE_STEP1 alice_s1;
ECJPAKE_STEP1 bob_s1;
ECJPAKE_STEP2 alice_s2;
ECJPAKE_STEP2 bob_s2;
ECJPAKE_STEP3A alice_s3a;
ECJPAKE_STEP3B bob_s3b;
/* Alice --> Bob: Step 1 */
fputs("\tAlice --> Bob: Step 1\n", stdout);
ECJPAKE_STEP1_init(&alice_s1, alice);
ECJPAKE_STEP1_generate(&alice_s1, alice);
if (!ECJPAKE_STEP1_process(bob, &alice_s1)) {
ECJPAKE_STEP1_release(&alice_s1);
fprintf(stderr, "Bob fails to process Alice's step 1\n");
ERR_print_errors_fp(stdout);
return 1;
}
ECJPAKE_STEP1_release(&alice_s1);
/* Bob --> Alice: Step 1 */
fputs("\tBob --> Alice: Step 1\n", stdout);
ECJPAKE_STEP1_init(&bob_s1, bob);
ECJPAKE_STEP1_generate(&bob_s1, bob);
if (!ECJPAKE_STEP1_process(alice, &bob_s1)) {
ECJPAKE_STEP1_release(&bob_s1);
fprintf(stderr, "Alice fails to process Bob's step 1\n");
ERR_print_errors_fp(stdout);
return 2;
}
ECJPAKE_STEP1_release(&bob_s1);
/* Alice --> Bob: Step 2 */
fputs("\tAlice --> Bob: Step 2\n", stdout);
ECJPAKE_STEP2_init(&alice_s2, alice);
ECJPAKE_STEP2_generate(&alice_s2, alice);
if (!ECJPAKE_STEP2_process(bob, &alice_s2)) {
ECJPAKE_STEP2_release(&alice_s2);
fprintf(stderr, "Bob fails to process Alice's step 2\n");
ERR_print_errors_fp(stdout);
return 3;
}
ECJPAKE_STEP2_release(&alice_s2);
/* Bob --> Alice: Step 2 */
fputs("\tBob --> Alice: Step 2\n", stdout);
ECJPAKE_STEP2_init(&bob_s2, bob);
ECJPAKE_STEP2_generate(&bob_s2, bob);
if (!ECJPAKE_STEP2_process(alice, &bob_s2)) {
ECJPAKE_STEP2_release(&bob_s2);
fprintf(stderr, "Alice fails to process Bob's step 2\n");
ERR_print_errors_fp(stdout);
return 4;
}
ECJPAKE_STEP2_release(&bob_s2);
showkey("\tAlice's key", ECJPAKE_get_shared_key(alice));
showkey("\tBob's key ", ECJPAKE_get_shared_key(bob));
/* Alice --> Bob: Step 3A */
fputs("\tAlice --> Bob: Step 3A\n", stdout);
ECJPAKE_STEP3A_init(&alice_s3a);
ECJPAKE_STEP3A_generate(&alice_s3a, alice);
if (!ECJPAKE_STEP3A_process(bob, &alice_s3a)) {
ECJPAKE_STEP3A_release(&alice_s3a);
return 5;
}
ECJPAKE_STEP3A_release(&alice_s3a);
/* Bob --> Alice: Step 3B */
fputs("\tBob --> Alice: Step 3B\n", stdout);
ECJPAKE_STEP3B_init(&bob_s3b);
ECJPAKE_STEP3B_generate(&bob_s3b, bob);
if (!ECJPAKE_STEP3B_process(alice, &bob_s3b)) {
ECJPAKE_STEP3B_release(&bob_s3b);
return 6;
}
ECJPAKE_STEP3B_release(&bob_s3b);
return 0;
}
int main(int argc, char **argv)
{
ECJPAKE_CTX *alice = NULL;
ECJPAKE_CTX *bob = NULL;
unsigned char *alice_id_num = NULL;
unsigned char *bob_id_num = NULL;
size_t alice_id_len;
size_t bob_id_len;
BIGNUM *secret = NULL;;
BIGNUM *secret_wrong = NULL;
size_t secret_len;
EC_GROUP *group = NULL;
int i;
int ret = 1;
typedef struct test_curve {
int nid;
char *name;
} test_curve;
test_curve test_curves[] = {
/* SECG PRIME CURVES TESTS */
{NID_secp160r1, "SECG Prime-Curve P-160"},
/* NIST PRIME CURVES TESTS */
{NID_X9_62_prime192v1, "NIST Prime-Curve P-192"},
{NID_secp224r1, "NIST Prime-Curve P-224"},
{NID_X9_62_prime256v1, "NIST Prime-Curve P-256"},
{NID_secp384r1, "NIST Prime-Curve P-384"},
{NID_secp521r1, "NIST Prime-Curve P-521"},
# ifndef OPENSSL_NO_EC2M
/* NIST BINARY CURVES TESTS */
{NID_sect163k1, "NIST Binary-Curve K-163"},
{NID_sect163r2, "NIST Binary-Curve B-163"},
{NID_sect233k1, "NIST Binary-Curve K-233"},
{NID_sect233r1, "NIST Binary-Curve B-233"},
{NID_sect283k1, "NIST Binary-Curve K-283"},
{NID_sect283r1, "NIST Binary-Curve B-283"},
{NID_sect409k1, "NIST Binary-Curve K-409"},
{NID_sect409r1, "NIST Binary-Curve B-409"},
{NID_sect571k1, "NIST Binary-Curve K-571"},
{NID_sect571r1, "NIST Binary-Curve B-571"},
# endif
};
# ifdef OPENSSL_SYS_WIN32
CRYPTO_malloc_init();
# endif
RAND_seed(rnd_seed, sizeof rnd_seed);
for (i = 0; i < sizeof(test_curves)/sizeof(test_curve); i++) {
fprintf(stdout, "\nTesting ECJPAKE protocol for %s\n",
test_curves[i].name);
group = EC_GROUP_new_by_curve_name(test_curves[i].nid);
if (group == NULL)
goto err;
/* randomize length of a secret in a range [32, 1024] bits */
if (!generate_rand_len(&secret_len, 32, 512))
goto err;
/* randomize secret of secret_len bits */
secret = BN_new();
if (secret == NULL)
goto err;
if (!BN_rand(secret, secret_len, 0, 0))
goto err;
/* randomize alice_id_len in a range [4, 128] bytes */
if (!generate_rand_len(&alice_id_len, 4, 128))
goto err;
/* randomize alice_id_num of alice_id_len bytes */
alice_id_num = (unsigned char *)OPENSSL_malloc(alice_id_len);
if (alice_id_num == NULL)
goto err;
if (!RAND_bytes(alice_id_num, alice_id_len))
goto err;
/* randomize bob_id_len in a range [4, 128] bytes */
if (!generate_rand_len(&bob_id_len, 4, 128))
goto err;
/* randomize bob_id_num of bob_id_len bytes */
bob_id_num = (unsigned char *)OPENSSL_malloc(bob_id_len);
if (bob_id_num == NULL)
goto err;
if (!RAND_bytes(bob_id_num, bob_id_len))
goto err;
/* Initialize ECJPAKE_CTX for Alice and Bob */
alice = ECJPAKE_CTX_new(group, secret, alice_id_num, alice_id_len,
bob_id_num, bob_id_len);
if (alice == NULL)
goto err;
bob = ECJPAKE_CTX_new(group, secret, bob_id_num, bob_id_len,
alice_id_num, alice_id_len);
if (bob == NULL)
goto err;
fprintf(stdout, "Plain EC J-PAKE run\n");
if (run_ecjpake(alice, bob) != 0) {
fprintf(stderr, "Plain EC J-PAKE run failed\n");
goto err;
}
ECJPAKE_CTX_free(bob);
bob = NULL;
ECJPAKE_CTX_free(alice);
alice = NULL;
/* Now give Alice and Bob different secrets */
alice = ECJPAKE_CTX_new(group, secret, alice_id_num, alice_id_len,
bob_id_num, bob_id_len);
if (alice == NULL)
goto err;
/* randomize secret_wrong of secret_len bits */
secret_wrong = BN_new();
if (secret_wrong == NULL)
goto err;
if (!BN_rand(secret_wrong, secret_len, 0, 0))
goto err;
if (!BN_add(secret_wrong, secret_wrong, secret))
goto err;
bob = ECJPAKE_CTX_new(group, secret_wrong, bob_id_num, bob_id_len,
alice_id_num, alice_id_len);
if (bob == NULL)
goto err;
fprintf(stdout, "Mismatch secret EC J-PAKE run\n");
if (run_ecjpake(alice, bob) != 5) {
fprintf(stderr, "Mismatched secret EC J-PAKE run failed\n");
goto err;
}
ECJPAKE_CTX_free(bob);
bob = NULL;
ECJPAKE_CTX_free(alice);
alice = NULL;
BN_free(secret);
secret = NULL;
BN_free(secret_wrong);
secret_wrong = NULL;
OPENSSL_free(alice_id_num);
alice_id_num = NULL;
OPENSSL_free(bob_id_num);
bob_id_num = NULL;
EC_GROUP_free(group);
group = NULL;
}
ret = 0;
err:
if (ret)
fprintf(stderr, "ecjpaketest completed with error.\n");
else
fprintf(stderr, "ecjpaketest completed successfully.\n");
if (bob != NULL)
ECJPAKE_CTX_free(bob);
if (alice != NULL)
ECJPAKE_CTX_free(alice);
if (secret != NULL)
BN_free(secret);
if (secret_wrong != NULL)
BN_free(secret_wrong);
if (alice_id_num != NULL)
OPENSSL_free(alice_id_num);
if (bob_id_num != NULL)
OPENSSL_free(bob_id_num);
if (group != NULL)
EC_GROUP_free(group);
CRYPTO_cleanup_all_ex_data();
return ret;
}
#endif