1 /*
2 * HMAC-SHA-224/256/384/512 implementation
3 * Last update: 06/15/2005
4 * Issue date: 06/15/2005
5 *
6 * Since this code has been incorporated into a GPLv2 project, it is
7 * distributed under GPLv2 inside mmc-utils. The original BSD license
8 * that the code was released under is included below for clarity.
9 *
10 * Copyright (C) 2005 Olivier Gay <olivier.gay@a3.epfl.ch>
11 * All rights reserved.
12 *
13 * Redistribution and use in source and binary forms, with or without
14 * modification, are permitted provided that the following conditions
15 * are met:
16 * 1. Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 * 2. Redistributions in binary form must reproduce the above copyright
19 * notice, this list of conditions and the following disclaimer in the
20 * documentation and/or other materials provided with the distribution.
21 * 3. Neither the name of the project nor the names of its contributors
22 * may be used to endorse or promote products derived from this software
23 * without specific prior written permission.
24 *
25 * THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
29 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
30 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
31 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
32 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
33 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
34 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
35 * SUCH DAMAGE.
36 */
37
38 #include <string.h>
39
40 #include "hmac_sha2.h"
41
42 /* HMAC-SHA-224 functions */
43
hmac_sha224_init(hmac_sha224_ctx * ctx,const unsigned char * key,unsigned int key_size)44 void hmac_sha224_init(hmac_sha224_ctx *ctx, const unsigned char *key,
45 unsigned int key_size)
46 {
47 unsigned int fill;
48 unsigned int num;
49
50 const unsigned char *key_used;
51 unsigned char key_temp[SHA224_DIGEST_SIZE];
52 int i;
53
54 if (key_size == SHA224_BLOCK_SIZE) {
55 key_used = key;
56 num = SHA224_BLOCK_SIZE;
57 } else {
58 if (key_size > SHA224_BLOCK_SIZE){
59 num = SHA224_DIGEST_SIZE;
60 sha224(key, key_size, key_temp);
61 key_used = key_temp;
62 } else { /* key_size > SHA224_BLOCK_SIZE */
63 key_used = key;
64 num = key_size;
65 }
66 fill = SHA224_BLOCK_SIZE - num;
67
68 memset(ctx->block_ipad + num, 0x36, fill);
69 memset(ctx->block_opad + num, 0x5c, fill);
70 }
71
72 for (i = 0; i < (int) num; i++) {
73 ctx->block_ipad[i] = key_used[i] ^ 0x36;
74 ctx->block_opad[i] = key_used[i] ^ 0x5c;
75 }
76
77 sha224_init(&ctx->ctx_inside);
78 sha224_update(&ctx->ctx_inside, ctx->block_ipad, SHA224_BLOCK_SIZE);
79
80 sha224_init(&ctx->ctx_outside);
81 sha224_update(&ctx->ctx_outside, ctx->block_opad,
82 SHA224_BLOCK_SIZE);
83
84 /* for hmac_reinit */
85 memcpy(&ctx->ctx_inside_reinit, &ctx->ctx_inside,
86 sizeof(sha224_ctx));
87 memcpy(&ctx->ctx_outside_reinit, &ctx->ctx_outside,
88 sizeof(sha224_ctx));
89 }
90
hmac_sha224_reinit(hmac_sha224_ctx * ctx)91 void hmac_sha224_reinit(hmac_sha224_ctx *ctx)
92 {
93 memcpy(&ctx->ctx_inside, &ctx->ctx_inside_reinit,
94 sizeof(sha224_ctx));
95 memcpy(&ctx->ctx_outside, &ctx->ctx_outside_reinit,
96 sizeof(sha224_ctx));
97 }
98
hmac_sha224_update(hmac_sha224_ctx * ctx,const unsigned char * message,unsigned int message_len)99 void hmac_sha224_update(hmac_sha224_ctx *ctx, const unsigned char *message,
100 unsigned int message_len)
101 {
102 sha224_update(&ctx->ctx_inside, message, message_len);
103 }
104
hmac_sha224_final(hmac_sha224_ctx * ctx,unsigned char * mac,unsigned int mac_size)105 void hmac_sha224_final(hmac_sha224_ctx *ctx, unsigned char *mac,
106 unsigned int mac_size)
107 {
108 unsigned char digest_inside[SHA224_DIGEST_SIZE];
109 unsigned char mac_temp[SHA224_DIGEST_SIZE];
110
111 sha224_final(&ctx->ctx_inside, digest_inside);
112 sha224_update(&ctx->ctx_outside, digest_inside, SHA224_DIGEST_SIZE);
113 sha224_final(&ctx->ctx_outside, mac_temp);
114 memcpy(mac, mac_temp, mac_size);
115 }
116
hmac_sha224(const unsigned char * key,unsigned int key_size,const unsigned char * message,unsigned int message_len,unsigned char * mac,unsigned mac_size)117 void hmac_sha224(const unsigned char *key, unsigned int key_size,
118 const unsigned char *message, unsigned int message_len,
119 unsigned char *mac, unsigned mac_size)
120 {
121 hmac_sha224_ctx ctx;
122
123 hmac_sha224_init(&ctx, key, key_size);
124 hmac_sha224_update(&ctx, message, message_len);
125 hmac_sha224_final(&ctx, mac, mac_size);
126 }
127
128 /* HMAC-SHA-256 functions */
129
hmac_sha256_init(hmac_sha256_ctx * ctx,const unsigned char * key,unsigned int key_size)130 void hmac_sha256_init(hmac_sha256_ctx *ctx, const unsigned char *key,
131 unsigned int key_size)
132 {
133 unsigned int fill;
134 unsigned int num;
135
136 const unsigned char *key_used;
137 unsigned char key_temp[SHA256_DIGEST_SIZE];
138 int i;
139
140 if (key_size == SHA256_BLOCK_SIZE) {
141 key_used = key;
142 num = SHA256_BLOCK_SIZE;
143 } else {
144 if (key_size > SHA256_BLOCK_SIZE){
145 num = SHA256_DIGEST_SIZE;
146 sha256(key, key_size, key_temp);
147 key_used = key_temp;
148 } else { /* key_size > SHA256_BLOCK_SIZE */
149 key_used = key;
150 num = key_size;
151 }
152 fill = SHA256_BLOCK_SIZE - num;
153
154 memset(ctx->block_ipad + num, 0x36, fill);
155 memset(ctx->block_opad + num, 0x5c, fill);
156 }
157
158 for (i = 0; i < (int) num; i++) {
159 ctx->block_ipad[i] = key_used[i] ^ 0x36;
160 ctx->block_opad[i] = key_used[i] ^ 0x5c;
161 }
162
163 sha256_init(&ctx->ctx_inside);
164 sha256_update(&ctx->ctx_inside, ctx->block_ipad, SHA256_BLOCK_SIZE);
165
166 sha256_init(&ctx->ctx_outside);
167 sha256_update(&ctx->ctx_outside, ctx->block_opad,
168 SHA256_BLOCK_SIZE);
169
170 /* for hmac_reinit */
171 memcpy(&ctx->ctx_inside_reinit, &ctx->ctx_inside,
172 sizeof(sha256_ctx));
173 memcpy(&ctx->ctx_outside_reinit, &ctx->ctx_outside,
174 sizeof(sha256_ctx));
175 }
176
hmac_sha256_reinit(hmac_sha256_ctx * ctx)177 void hmac_sha256_reinit(hmac_sha256_ctx *ctx)
178 {
179 memcpy(&ctx->ctx_inside, &ctx->ctx_inside_reinit,
180 sizeof(sha256_ctx));
181 memcpy(&ctx->ctx_outside, &ctx->ctx_outside_reinit,
182 sizeof(sha256_ctx));
183 }
184
hmac_sha256_update(hmac_sha256_ctx * ctx,const unsigned char * message,unsigned int message_len)185 void hmac_sha256_update(hmac_sha256_ctx *ctx, const unsigned char *message,
186 unsigned int message_len)
187 {
188 sha256_update(&ctx->ctx_inside, message, message_len);
189 }
190
hmac_sha256_final(hmac_sha256_ctx * ctx,unsigned char * mac,unsigned int mac_size)191 void hmac_sha256_final(hmac_sha256_ctx *ctx, unsigned char *mac,
192 unsigned int mac_size)
193 {
194 unsigned char digest_inside[SHA256_DIGEST_SIZE];
195 unsigned char mac_temp[SHA256_DIGEST_SIZE];
196
197 sha256_final(&ctx->ctx_inside, digest_inside);
198 sha256_update(&ctx->ctx_outside, digest_inside, SHA256_DIGEST_SIZE);
199 sha256_final(&ctx->ctx_outside, mac_temp);
200 memcpy(mac, mac_temp, mac_size);
201 }
202
hmac_sha256(const unsigned char * key,unsigned int key_size,const unsigned char * message,unsigned int message_len,unsigned char * mac,unsigned mac_size)203 void hmac_sha256(const unsigned char *key, unsigned int key_size,
204 const unsigned char *message, unsigned int message_len,
205 unsigned char *mac, unsigned mac_size)
206 {
207 hmac_sha256_ctx ctx;
208
209 hmac_sha256_init(&ctx, key, key_size);
210 hmac_sha256_update(&ctx, message, message_len);
211 hmac_sha256_final(&ctx, mac, mac_size);
212 }
213
214 /* HMAC-SHA-384 functions */
215
hmac_sha384_init(hmac_sha384_ctx * ctx,const unsigned char * key,unsigned int key_size)216 void hmac_sha384_init(hmac_sha384_ctx *ctx, const unsigned char *key,
217 unsigned int key_size)
218 {
219 unsigned int fill;
220 unsigned int num;
221
222 const unsigned char *key_used;
223 unsigned char key_temp[SHA384_DIGEST_SIZE];
224 int i;
225
226 if (key_size == SHA384_BLOCK_SIZE) {
227 key_used = key;
228 num = SHA384_BLOCK_SIZE;
229 } else {
230 if (key_size > SHA384_BLOCK_SIZE){
231 num = SHA384_DIGEST_SIZE;
232 sha384(key, key_size, key_temp);
233 key_used = key_temp;
234 } else { /* key_size > SHA384_BLOCK_SIZE */
235 key_used = key;
236 num = key_size;
237 }
238 fill = SHA384_BLOCK_SIZE - num;
239
240 memset(ctx->block_ipad + num, 0x36, fill);
241 memset(ctx->block_opad + num, 0x5c, fill);
242 }
243
244 for (i = 0; i < (int) num; i++) {
245 ctx->block_ipad[i] = key_used[i] ^ 0x36;
246 ctx->block_opad[i] = key_used[i] ^ 0x5c;
247 }
248
249 sha384_init(&ctx->ctx_inside);
250 sha384_update(&ctx->ctx_inside, ctx->block_ipad, SHA384_BLOCK_SIZE);
251
252 sha384_init(&ctx->ctx_outside);
253 sha384_update(&ctx->ctx_outside, ctx->block_opad,
254 SHA384_BLOCK_SIZE);
255
256 /* for hmac_reinit */
257 memcpy(&ctx->ctx_inside_reinit, &ctx->ctx_inside,
258 sizeof(sha384_ctx));
259 memcpy(&ctx->ctx_outside_reinit, &ctx->ctx_outside,
260 sizeof(sha384_ctx));
261 }
262
hmac_sha384_reinit(hmac_sha384_ctx * ctx)263 void hmac_sha384_reinit(hmac_sha384_ctx *ctx)
264 {
265 memcpy(&ctx->ctx_inside, &ctx->ctx_inside_reinit,
266 sizeof(sha384_ctx));
267 memcpy(&ctx->ctx_outside, &ctx->ctx_outside_reinit,
268 sizeof(sha384_ctx));
269 }
270
hmac_sha384_update(hmac_sha384_ctx * ctx,const unsigned char * message,unsigned int message_len)271 void hmac_sha384_update(hmac_sha384_ctx *ctx, const unsigned char *message,
272 unsigned int message_len)
273 {
274 sha384_update(&ctx->ctx_inside, message, message_len);
275 }
276
hmac_sha384_final(hmac_sha384_ctx * ctx,unsigned char * mac,unsigned int mac_size)277 void hmac_sha384_final(hmac_sha384_ctx *ctx, unsigned char *mac,
278 unsigned int mac_size)
279 {
280 unsigned char digest_inside[SHA384_DIGEST_SIZE];
281 unsigned char mac_temp[SHA384_DIGEST_SIZE];
282
283 sha384_final(&ctx->ctx_inside, digest_inside);
284 sha384_update(&ctx->ctx_outside, digest_inside, SHA384_DIGEST_SIZE);
285 sha384_final(&ctx->ctx_outside, mac_temp);
286 memcpy(mac, mac_temp, mac_size);
287 }
288
hmac_sha384(const unsigned char * key,unsigned int key_size,const unsigned char * message,unsigned int message_len,unsigned char * mac,unsigned mac_size)289 void hmac_sha384(const unsigned char *key, unsigned int key_size,
290 const unsigned char *message, unsigned int message_len,
291 unsigned char *mac, unsigned mac_size)
292 {
293 hmac_sha384_ctx ctx;
294
295 hmac_sha384_init(&ctx, key, key_size);
296 hmac_sha384_update(&ctx, message, message_len);
297 hmac_sha384_final(&ctx, mac, mac_size);
298 }
299
300 /* HMAC-SHA-512 functions */
301
hmac_sha512_init(hmac_sha512_ctx * ctx,const unsigned char * key,unsigned int key_size)302 void hmac_sha512_init(hmac_sha512_ctx *ctx, const unsigned char *key,
303 unsigned int key_size)
304 {
305 unsigned int fill;
306 unsigned int num;
307
308 const unsigned char *key_used;
309 unsigned char key_temp[SHA512_DIGEST_SIZE];
310 int i;
311
312 if (key_size == SHA512_BLOCK_SIZE) {
313 key_used = key;
314 num = SHA512_BLOCK_SIZE;
315 } else {
316 if (key_size > SHA512_BLOCK_SIZE){
317 num = SHA512_DIGEST_SIZE;
318 sha512(key, key_size, key_temp);
319 key_used = key_temp;
320 } else { /* key_size > SHA512_BLOCK_SIZE */
321 key_used = key;
322 num = key_size;
323 }
324 fill = SHA512_BLOCK_SIZE - num;
325
326 memset(ctx->block_ipad + num, 0x36, fill);
327 memset(ctx->block_opad + num, 0x5c, fill);
328 }
329
330 for (i = 0; i < (int) num; i++) {
331 ctx->block_ipad[i] = key_used[i] ^ 0x36;
332 ctx->block_opad[i] = key_used[i] ^ 0x5c;
333 }
334
335 sha512_init(&ctx->ctx_inside);
336 sha512_update(&ctx->ctx_inside, ctx->block_ipad, SHA512_BLOCK_SIZE);
337
338 sha512_init(&ctx->ctx_outside);
339 sha512_update(&ctx->ctx_outside, ctx->block_opad,
340 SHA512_BLOCK_SIZE);
341
342 /* for hmac_reinit */
343 memcpy(&ctx->ctx_inside_reinit, &ctx->ctx_inside,
344 sizeof(sha512_ctx));
345 memcpy(&ctx->ctx_outside_reinit, &ctx->ctx_outside,
346 sizeof(sha512_ctx));
347 }
348
hmac_sha512_reinit(hmac_sha512_ctx * ctx)349 void hmac_sha512_reinit(hmac_sha512_ctx *ctx)
350 {
351 memcpy(&ctx->ctx_inside, &ctx->ctx_inside_reinit,
352 sizeof(sha512_ctx));
353 memcpy(&ctx->ctx_outside, &ctx->ctx_outside_reinit,
354 sizeof(sha512_ctx));
355 }
356
hmac_sha512_update(hmac_sha512_ctx * ctx,const unsigned char * message,unsigned int message_len)357 void hmac_sha512_update(hmac_sha512_ctx *ctx, const unsigned char *message,
358 unsigned int message_len)
359 {
360 sha512_update(&ctx->ctx_inside, message, message_len);
361 }
362
hmac_sha512_final(hmac_sha512_ctx * ctx,unsigned char * mac,unsigned int mac_size)363 void hmac_sha512_final(hmac_sha512_ctx *ctx, unsigned char *mac,
364 unsigned int mac_size)
365 {
366 unsigned char digest_inside[SHA512_DIGEST_SIZE];
367 unsigned char mac_temp[SHA512_DIGEST_SIZE];
368
369 sha512_final(&ctx->ctx_inside, digest_inside);
370 sha512_update(&ctx->ctx_outside, digest_inside, SHA512_DIGEST_SIZE);
371 sha512_final(&ctx->ctx_outside, mac_temp);
372 memcpy(mac, mac_temp, mac_size);
373 }
374
hmac_sha512(const unsigned char * key,unsigned int key_size,const unsigned char * message,unsigned int message_len,unsigned char * mac,unsigned mac_size)375 void hmac_sha512(const unsigned char *key, unsigned int key_size,
376 const unsigned char *message, unsigned int message_len,
377 unsigned char *mac, unsigned mac_size)
378 {
379 hmac_sha512_ctx ctx;
380
381 hmac_sha512_init(&ctx, key, key_size);
382 hmac_sha512_update(&ctx, message, message_len);
383 hmac_sha512_final(&ctx, mac, mac_size);
384 }
385
386 #ifdef TEST_VECTORS
387
388 /* IETF Validation tests */
389
390 #include <stdio.h>
391 #include <stdlib.h>
392
test(const char * vector,unsigned char * digest,unsigned int digest_size)393 void test(const char *vector, unsigned char *digest,
394 unsigned int digest_size)
395 {
396 char output[2 * SHA512_DIGEST_SIZE + 1];
397 int i;
398
399 output[2 * digest_size] = '\0';
400
401 for (i = 0; i < (int) digest_size ; i++) {
402 sprintf(output + 2*i, "%02x", digest[i]);
403 }
404
405 printf("H: %s\n", output);
406 if (strcmp(vector, output)) {
407 fprintf(stderr, "Test failed.\n");
408 exit(1);
409 }
410 }
411
main(void)412 int main(void)
413 {
414 static const char *vectors[] =
415 {
416 /* HMAC-SHA-224 */
417 "896fb1128abbdf196832107cd49df33f47b4b1169912ba4f53684b22",
418 "a30e01098bc6dbbf45690f3a7e9e6d0f8bbea2a39e6148008fd05e44",
419 "7fb3cb3588c6c1f6ffa9694d7d6ad2649365b0c1f65d69d1ec8333ea",
420 "6c11506874013cac6a2abc1bb382627cec6a90d86efc012de7afec5a",
421 "0e2aea68a90c8d37c988bcdb9fca6fa8",
422 "95e9a0db962095adaebe9b2d6f0dbce2d499f112f2d2b7273fa6870e",
423 "3a854166ac5d9f023f54d517d0b39dbd946770db9c2b95c9f6f565d1",
424 /* HMAC-SHA-256 */
425 "b0344c61d8db38535ca8afceaf0bf12b881dc200c9833da726e9376c2e32cff7",
426 "5bdcc146bf60754e6a042426089575c75a003f089d2739839dec58b964ec3843",
427 "773ea91e36800e46854db8ebd09181a72959098b3ef8c122d9635514ced565fe",
428 "82558a389a443c0ea4cc819899f2083a85f0faa3e578f8077a2e3ff46729665b",
429 "a3b6167473100ee06e0c796c2955552b",
430 "60e431591ee0b67f0d8a26aacbf5b77f8e0bc6213728c5140546040f0ee37f54",
431 "9b09ffa71b942fcb27635fbcd5b0e944bfdc63644f0713938a7f51535c3a35e2",
432 /* HMAC-SHA-384 */
433 "afd03944d84895626b0825f4ab46907f15f9dadbe4101ec682aa034c7cebc59c"
434 "faea9ea9076ede7f4af152e8b2fa9cb6",
435 "af45d2e376484031617f78d2b58a6b1b9c7ef464f5a01b47e42ec3736322445e"
436 "8e2240ca5e69e2c78b3239ecfab21649",
437 "88062608d3e6ad8a0aa2ace014c8a86f0aa635d947ac9febe83ef4e55966144b"
438 "2a5ab39dc13814b94e3ab6e101a34f27",
439 "3e8a69b7783c25851933ab6290af6ca77a9981480850009cc5577c6e1f573b4e"
440 "6801dd23c4a7d679ccf8a386c674cffb",
441 "3abf34c3503b2a23a46efc619baef897",
442 "4ece084485813e9088d2c63a041bc5b44f9ef1012a2b588f3cd11f05033ac4c6"
443 "0c2ef6ab4030fe8296248df163f44952",
444 "6617178e941f020d351e2f254e8fd32c602420feb0b8fb9adccebb82461e99c5"
445 "a678cc31e799176d3860e6110c46523e",
446 /* HMAC-SHA-512 */
447 "87aa7cdea5ef619d4ff0b4241a1d6cb02379f4e2ce4ec2787ad0b30545e17cde"
448 "daa833b7d6b8a702038b274eaea3f4e4be9d914eeb61f1702e696c203a126854",
449 "164b7a7bfcf819e2e395fbe73b56e0a387bd64222e831fd610270cd7ea250554"
450 "9758bf75c05a994a6d034f65f8f0e6fdcaeab1a34d4a6b4b636e070a38bce737",
451 "fa73b0089d56a284efb0f0756c890be9b1b5dbdd8ee81a3655f83e33b2279d39"
452 "bf3e848279a722c806b485a47e67c807b946a337bee8942674278859e13292fb",
453 "b0ba465637458c6990e5a8c5f61d4af7e576d97ff94b872de76f8050361ee3db"
454 "a91ca5c11aa25eb4d679275cc5788063a5f19741120c4f2de2adebeb10a298dd",
455 "415fad6271580a531d4179bc891d87a6",
456 "80b24263c7c1a3ebb71493c1dd7be8b49b46d1f41b4aeec1121b013783f8f352"
457 "6b56d037e05f2598bd0fd2215d6a1e5295e64f73f63f0aec8b915a985d786598",
458 "e37b6a775dc87dbaa4dfa9f96e5e3ffddebd71f8867289865df5a32d20cdc944"
459 "b6022cac3c4982b10d5eeb55c3e4de15134676fb6de0446065c97440fa8c6a58"
460 };
461
462 static char *messages[] =
463 {
464 "Hi There",
465 "what do ya want for nothing?",
466 NULL,
467 NULL,
468 "Test With Truncation",
469 "Test Using Larger Than Block-Size Key - Hash Key First",
470 "This is a test using a larger than block-size key "
471 "and a larger than block-size data. The key needs"
472 " to be hashed before being used by the HMAC algorithm."
473 };
474
475 unsigned char mac[SHA512_DIGEST_SIZE];
476 unsigned char *keys[7];
477 unsigned int keys_len[7] = {20, 4, 20, 25, 20, 131, 131};
478 unsigned int messages2and3_len = 50;
479 unsigned int mac_224_size, mac_256_size, mac_384_size, mac_512_size;
480 int i;
481
482 for (i = 0; i < 7; i++) {
483 keys[i] = malloc(keys_len[i]);
484 if (keys[i] == NULL) {
485 fprintf(stderr, "Can't allocate memory\n");
486 return 1;
487 }
488 }
489
490 memset(keys[0], 0x0b, keys_len[0]);
491 strcpy((char *) keys[1], "Jefe");
492 memset(keys[2], 0xaa, keys_len[2]);
493 for (i = 0; i < (int) keys_len[3]; i++)
494 keys[3][i] = (unsigned char) i + 1;
495 memset(keys[4], 0x0c, keys_len[4]);
496 memset(keys[5], 0xaa, keys_len[5]);
497 memset(keys[6], 0xaa, keys_len[6]);
498
499 messages[2] = malloc(messages2and3_len + 1);
500 messages[3] = malloc(messages2and3_len + 1);
501
502 if (messages[2] == NULL || messages[3] == NULL) {
503 fprintf(stderr, "Can't allocate memory\n");
504 return 1;
505 }
506
507 messages[2][messages2and3_len] = '\0';
508 messages[3][messages2and3_len] = '\0';
509
510 memset(messages[2], 0xdd, messages2and3_len);
511 memset(messages[3], 0xcd, messages2and3_len);
512
513 printf("HMAC-SHA-2 IETF Validation tests\n\n");
514
515 for (i = 0; i < 7; i++) {
516 if (i != 4) {
517 mac_224_size = SHA224_DIGEST_SIZE;
518 mac_256_size = SHA256_DIGEST_SIZE;
519 mac_384_size = SHA384_DIGEST_SIZE;
520 mac_512_size = SHA512_DIGEST_SIZE;
521 } else {
522 mac_224_size = 128 / 8; mac_256_size = 128 / 8;
523 mac_384_size = 128 / 8; mac_512_size = 128 / 8;
524 }
525
526 printf("Test %d:\n", i + 1);
527
528 hmac_sha224(keys[i], keys_len[i], (unsigned char *) messages[i],
529 strlen(messages[i]), mac, mac_224_size);
530 test(vectors[i], mac, mac_224_size);
531 hmac_sha256(keys[i], keys_len[i], (unsigned char *) messages[i],
532 strlen(messages[i]), mac, mac_256_size);
533 test(vectors[7 + i], mac, mac_256_size);
534 hmac_sha384(keys[i], keys_len[i], (unsigned char *) messages[i],
535 strlen(messages[i]), mac, mac_384_size);
536 test(vectors[14 + i], mac, mac_384_size);
537 hmac_sha512(keys[i], keys_len[i], (unsigned char *) messages[i],
538 strlen(messages[i]), mac, mac_512_size);
539 test(vectors[21 + i], mac, mac_512_size);
540 }
541
542 printf("All tests passed.\n");
543
544 return 0;
545 }
546
547 #endif /* TEST_VECTORS */
548
549