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| 1 /* | |
| 2 * aes_icm.c | |
| 3 * | |
| 4 * AES Integer Counter Mode | |
| 5 * | |
| 6 * David A. McGrew | |
| 7 * Cisco Systems, Inc. | |
| 8 */ | |
| 9 | |
| 10 /* | |
| 11 * | |
| 12 * Copyright (c) 2001-2006,2013 Cisco Systems, Inc. | |
| 13 * All rights reserved. | |
| 14 * | |
| 15 * Redistribution and use in source and binary forms, with or without | |
| 16 * modification, are permitted provided that the following conditions | |
| 17 * are met: | |
| 18 * | |
| 19 * Redistributions of source code must retain the above copyright | |
| 20 * notice, this list of conditions and the following disclaimer. | |
| 21 * | |
| 22 * Redistributions in binary form must reproduce the above | |
| 23 * copyright notice, this list of conditions and the following | |
| 24 * disclaimer in the documentation and/or other materials provided | |
| 25 * with the distribution. | |
| 26 * | |
| 27 * Neither the name of the Cisco Systems, Inc. nor the names of its | |
| 28 * contributors may be used to endorse or promote products derived | |
| 29 * from this software without specific prior written permission. | |
| 30 * | |
| 31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS | |
| 34 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | |
| 35 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, | |
| 36 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES | |
| 37 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
| 38 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
| 40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 41 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
| 42 * OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 43 * | |
| 44 */ | |
| 45 | |
| 46 #ifdef HAVE_CONFIG_H | |
| 47 #include <config.h> | |
| 48 #endif | |
| 49 | |
| 50 #define ALIGN_32 0 | |
| 51 | |
| 52 #include "aes_icm.h" | |
| 53 #include "alloc.h" | |
| 54 | |
| 55 | |
| 56 debug_module_t mod_aes_icm = { | |
| 57 0, /* debugging is off by default */ | |
| 58 "aes icm" /* printable module name */ | |
| 59 }; | |
| 60 | |
| 61 /* | |
| 62 * integer counter mode works as follows: | |
| 63 * | |
| 64 * 16 bits | |
| 65 * <-----> | |
| 66 * +------+------+------+------+------+------+------+------+ | |
| 67 * | nonce | pakcet index | ctr |---+ | |
| 68 * +------+------+------+------+------+------+------+------+ | | |
| 69 * | | |
| 70 * +------+------+------+------+------+------+------+------+ v | |
| 71 * | salt |000000|->(+) | |
| 72 * +------+------+------+------+------+------+------+------+ | | |
| 73 * | | |
| 74 * +---------+ | |
| 75 * | encrypt | | |
| 76 * +---------+ | |
| 77 * | | |
| 78 * +------+------+------+------+------+------+------+------+ | | |
| 79 * | keystream block |<--+ | |
| 80 * +------+------+------+------+------+------+------+------+ | |
| 81 * | |
| 82 * All fields are big-endian | |
| 83 * | |
| 84 * ctr is the block counter, which increments from zero for | |
| 85 * each packet (16 bits wide) | |
| 86 * | |
| 87 * packet index is distinct for each packet (48 bits wide) | |
| 88 * | |
| 89 * nonce can be distinct across many uses of the same key, or | |
| 90 * can be a fixed value per key, or can be per-packet randomness | |
| 91 * (64 bits) | |
| 92 * | |
| 93 */ | |
| 94 | |
| 95 err_status_t | |
| 96 aes_icm_alloc_ismacryp(cipher_t **c, int key_len, int forIsmacryp) { | |
| 97 extern cipher_type_t aes_icm; | |
| 98 uint8_t *pointer; | |
| 99 int tmp; | |
| 100 | |
| 101 debug_print(mod_aes_icm, | |
| 102 "allocating cipher with key length %d", key_len); | |
| 103 | |
| 104 /* | |
| 105 * Ismacryp, for example, uses 16 byte key + 8 byte | |
| 106 * salt so this function is called with key_len = 24. | |
| 107 * The check for key_len = 30/38/46 does not apply. Our usage | |
| 108 * of aes functions with key_len = values other than 30 | |
| 109 * has not broken anything. Don't know what would be the | |
| 110 * effect of skipping this check for srtp in general. | |
| 111 */ | |
| 112 if (!(forIsmacryp && key_len > 16 && key_len < 30) && | |
| 113 key_len != 30 && key_len != 38 && key_len != 46) | |
| 114 return err_status_bad_param; | |
| 115 | |
| 116 /* allocate memory a cipher of type aes_icm */ | |
| 117 tmp = (sizeof(aes_icm_ctx_t) + sizeof(cipher_t)); | |
| 118 pointer = (uint8_t*)crypto_alloc(tmp); | |
| 119 if (pointer == NULL) | |
| 120 return err_status_alloc_fail; | |
| 121 | |
| 122 /* set pointers */ | |
| 123 *c = (cipher_t *)pointer; | |
| 124 switch (key_len) { | |
| 125 case 46: | |
| 126 (*c)->algorithm = AES_256_ICM; | |
| 127 break; | |
| 128 case 38: | |
| 129 (*c)->algorithm = AES_192_ICM; | |
| 130 break; | |
| 131 default: | |
| 132 (*c)->algorithm = AES_128_ICM; | |
| 133 break; | |
| 134 } | |
| 135 (*c)->type = &aes_icm; | |
| 136 (*c)->state = pointer + sizeof(cipher_t); | |
| 137 | |
| 138 /* increment ref_count */ | |
| 139 aes_icm.ref_count++; | |
| 140 | |
| 141 /* set key size */ | |
| 142 (*c)->key_len = key_len; | |
| 143 | |
| 144 return err_status_ok; | |
| 145 } | |
| 146 | |
| 147 err_status_t aes_icm_alloc(cipher_t **c, int key_len, int forIsmacryp) { | |
| 148 return aes_icm_alloc_ismacryp(c, key_len, 0); | |
| 149 } | |
| 150 | |
| 151 err_status_t | |
| 152 aes_icm_dealloc(cipher_t *c) { | |
| 153 extern cipher_type_t aes_icm; | |
| 154 | |
| 155 /* zeroize entire state*/ | |
| 156 octet_string_set_to_zero((uint8_t *)c, | |
| 157 sizeof(aes_icm_ctx_t) + sizeof(cipher_t)); | |
| 158 | |
| 159 /* free memory */ | |
| 160 crypto_free(c); | |
| 161 | |
| 162 /* decrement ref_count */ | |
| 163 aes_icm.ref_count--; | |
| 164 | |
| 165 return err_status_ok; | |
| 166 } | |
| 167 | |
| 168 | |
| 169 /* | |
| 170 * aes_icm_context_init(...) initializes the aes_icm_context | |
| 171 * using the value in key[]. | |
| 172 * | |
| 173 * the key is the secret key | |
| 174 * | |
| 175 * the salt is unpredictable (but not necessarily secret) data which | |
| 176 * randomizes the starting point in the keystream | |
| 177 */ | |
| 178 | |
| 179 err_status_t | |
| 180 aes_icm_context_init(aes_icm_ctx_t *c, const uint8_t *key, int key_len) { | |
| 181 err_status_t status; | |
| 182 int base_key_len, copy_len; | |
| 183 | |
| 184 if (key_len > 16 && key_len < 30) /* Ismacryp */ | |
| 185 base_key_len = 16; | |
| 186 else if (key_len == 30 || key_len == 38 || key_len == 46) | |
| 187 base_key_len = key_len - 14; | |
| 188 else | |
| 189 return err_status_bad_param; | |
| 190 | |
| 191 /* | |
| 192 * set counter and initial values to 'offset' value, being careful not to | |
| 193 * go past the end of the key buffer | |
| 194 */ | |
| 195 v128_set_to_zero(&c->counter); | |
| 196 v128_set_to_zero(&c->offset); | |
| 197 | |
| 198 copy_len = key_len - base_key_len; | |
| 199 /* force last two octets of the offset to be left zero (for srtp compatibility
) */ | |
| 200 if (copy_len > 14) | |
| 201 copy_len = 14; | |
| 202 | |
| 203 memcpy(&c->counter, key + base_key_len, copy_len); | |
| 204 memcpy(&c->offset, key + base_key_len, copy_len); | |
| 205 | |
| 206 debug_print(mod_aes_icm, | |
| 207 "key: %s", octet_string_hex_string(key, base_key_len)); | |
| 208 debug_print(mod_aes_icm, | |
| 209 "offset: %s", v128_hex_string(&c->offset)); | |
| 210 | |
| 211 /* expand key */ | |
| 212 status = aes_expand_encryption_key(key, base_key_len, &c->expanded_key); | |
| 213 if (status) { | |
| 214 v128_set_to_zero(&c->counter); | |
| 215 v128_set_to_zero(&c->offset); | |
| 216 return status; | |
| 217 } | |
| 218 | |
| 219 /* indicate that the keystream_buffer is empty */ | |
| 220 c->bytes_in_buffer = 0; | |
| 221 | |
| 222 return err_status_ok; | |
| 223 } | |
| 224 | |
| 225 /* | |
| 226 * aes_icm_set_octet(c, i) sets the counter of the context which it is | |
| 227 * passed so that the next octet of keystream that will be generated | |
| 228 * is the ith octet | |
| 229 */ | |
| 230 | |
| 231 err_status_t | |
| 232 aes_icm_set_octet(aes_icm_ctx_t *c, | |
| 233 uint64_t octet_num) { | |
| 234 | |
| 235 #ifdef NO_64BIT_MATH | |
| 236 int tail_num = low32(octet_num) & 0x0f; | |
| 237 /* 64-bit right-shift 4 */ | |
| 238 uint64_t block_num = make64(high32(octet_num) >> 4, | |
| 239 ((high32(octet_num) &
0x0f)<<(32-4)) | | |
| 240 (low32(octet_num) >>
4)); | |
| 241 #else | |
| 242 int tail_num = (int)(octet_num % 16); | |
| 243 uint64_t block_num = octet_num / 16; | |
| 244 #endif | |
| 245 | |
| 246 | |
| 247 /* set counter value */ | |
| 248 /* FIX - There's no way this is correct */ | |
| 249 c->counter.v64[0] = c->offset.v64[0]; | |
| 250 #ifdef NO_64BIT_MATH | |
| 251 c->counter.v64[0] = make64(high32(c->offset.v64[0]) ^ high32(block_num), | |
| 252 low32(c->offset.v64[0])
^ low32(block_num)); | |
| 253 #else | |
| 254 c->counter.v64[0] = c->offset.v64[0] ^ block_num; | |
| 255 #endif | |
| 256 | |
| 257 debug_print(mod_aes_icm, | |
| 258 "set_octet: %s", v128_hex_string(&c->counter)); | |
| 259 | |
| 260 /* fill keystream buffer, if needed */ | |
| 261 if (tail_num) { | |
| 262 v128_copy(&c->keystream_buffer, &c->counter); | |
| 263 aes_encrypt(&c->keystream_buffer, &c->expanded_key); | |
| 264 c->bytes_in_buffer = sizeof(v128_t); | |
| 265 | |
| 266 debug_print(mod_aes_icm, "counter: %s", | |
| 267 v128_hex_string(&c->counter)); | |
| 268 debug_print(mod_aes_icm, "ciphertext: %s", | |
| 269 v128_hex_string(&c->keystream_buffer)); | |
| 270 | |
| 271 /* indicate number of bytes in keystream_buffer */ | |
| 272 c->bytes_in_buffer = sizeof(v128_t) - tail_num; | |
| 273 | |
| 274 } else { | |
| 275 | |
| 276 /* indicate that keystream_buffer is empty */ | |
| 277 c->bytes_in_buffer = 0; | |
| 278 } | |
| 279 | |
| 280 return err_status_ok; | |
| 281 } | |
| 282 | |
| 283 /* | |
| 284 * aes_icm_set_iv(c, iv) sets the counter value to the exor of iv with | |
| 285 * the offset | |
| 286 */ | |
| 287 | |
| 288 err_status_t | |
| 289 aes_icm_set_iv(aes_icm_ctx_t *c, void *iv, int direction) { | |
| 290 v128_t nonce; | |
| 291 | |
| 292 /* set nonce (for alignment) */ | |
| 293 v128_copy_octet_string(&nonce, iv); | |
| 294 | |
| 295 debug_print(mod_aes_icm, | |
| 296 "setting iv: %s", v128_hex_string(&nonce)); | |
| 297 | |
| 298 v128_xor(&c->counter, &c->offset, &nonce); | |
| 299 | |
| 300 debug_print(mod_aes_icm, | |
| 301 "set_counter: %s", v128_hex_string(&c->counter)); | |
| 302 | |
| 303 /* indicate that the keystream_buffer is empty */ | |
| 304 c->bytes_in_buffer = 0; | |
| 305 | |
| 306 return err_status_ok; | |
| 307 } | |
| 308 | |
| 309 | |
| 310 | |
| 311 /* | |
| 312 * aes_icm_advance(...) refills the keystream_buffer and | |
| 313 * advances the block index of the sicm_context forward by one | |
| 314 * | |
| 315 * this is an internal, hopefully inlined function | |
| 316 */ | |
| 317 | |
| 318 static inline void | |
| 319 aes_icm_advance_ismacryp(aes_icm_ctx_t *c, uint8_t forIsmacryp) { | |
| 320 /* fill buffer with new keystream */ | |
| 321 v128_copy(&c->keystream_buffer, &c->counter); | |
| 322 aes_encrypt(&c->keystream_buffer, &c->expanded_key); | |
| 323 c->bytes_in_buffer = sizeof(v128_t); | |
| 324 | |
| 325 debug_print(mod_aes_icm, "counter: %s", | |
| 326 v128_hex_string(&c->counter)); | |
| 327 debug_print(mod_aes_icm, "ciphertext: %s", | |
| 328 v128_hex_string(&c->keystream_buffer)); | |
| 329 | |
| 330 /* clock counter forward */ | |
| 331 | |
| 332 if (forIsmacryp) { | |
| 333 uint32_t temp; | |
| 334 //alex's clock counter forward | |
| 335 temp = ntohl(c->counter.v32[3]); | |
| 336 ++temp; | |
| 337 c->counter.v32[3] = htonl(temp); | |
| 338 } else { | |
| 339 if (!++(c->counter.v8[15])) | |
| 340 ++(c->counter.v8[14]); | |
| 341 } | |
| 342 } | |
| 343 | |
| 344 /*e | |
| 345 * icm_encrypt deals with the following cases: | |
| 346 * | |
| 347 * bytes_to_encr < bytes_in_buffer | |
| 348 * - add keystream into data | |
| 349 * | |
| 350 * bytes_to_encr > bytes_in_buffer | |
| 351 * - add keystream into data until keystream_buffer is depleted | |
| 352 * - loop over blocks, filling keystream_buffer and then | |
| 353 * adding keystream into data | |
| 354 * - fill buffer then add in remaining (< 16) bytes of keystream | |
| 355 */ | |
| 356 | |
| 357 err_status_t | |
| 358 aes_icm_encrypt_ismacryp(aes_icm_ctx_t *c, | |
| 359 unsigned char *buf, unsigned int *enc_len, | |
| 360 int forIsmacryp) { | |
| 361 unsigned int bytes_to_encr = *enc_len; | |
| 362 unsigned int i; | |
| 363 uint32_t *b; | |
| 364 | |
| 365 /* check that there's enough segment left but not for ismacryp*/ | |
| 366 if (!forIsmacryp && (bytes_to_encr + htons(c->counter.v16[7])) > 0xffff) | |
| 367 return err_status_terminus; | |
| 368 | |
| 369 debug_print(mod_aes_icm, "block index: %d", | |
| 370 htons(c->counter.v16[7])); | |
| 371 if (bytes_to_encr <= (unsigned int)c->bytes_in_buffer) { | |
| 372 | |
| 373 /* deal with odd case of small bytes_to_encr */ | |
| 374 for (i = (sizeof(v128_t) - c->bytes_in_buffer); | |
| 375 i < (sizeof(v128_t) - c->bytes_in_buffer + bytes_to_encr); i++)
| |
| 376 { | |
| 377 *buf++ ^= c->keystream_buffer.v8[i]; | |
| 378 } | |
| 379 | |
| 380 c->bytes_in_buffer -= bytes_to_encr; | |
| 381 | |
| 382 /* return now to avoid the main loop */ | |
| 383 return err_status_ok; | |
| 384 | |
| 385 } else { | |
| 386 | |
| 387 /* encrypt bytes until the remaining data is 16-byte aligned */ | |
| 388 for (i=(sizeof(v128_t) - c->bytes_in_buffer); i < sizeof(v128_t); i++) | |
| 389 *buf++ ^= c->keystream_buffer.v8[i]; | |
| 390 | |
| 391 bytes_to_encr -= c->bytes_in_buffer; | |
| 392 c->bytes_in_buffer = 0; | |
| 393 | |
| 394 } | |
| 395 | |
| 396 /* now loop over entire 16-byte blocks of keystream */ | |
| 397 for (i=0; i < (bytes_to_encr/sizeof(v128_t)); i++) { | |
| 398 | |
| 399 /* fill buffer with new keystream */ | |
| 400 aes_icm_advance_ismacryp(c, forIsmacryp); | |
| 401 | |
| 402 /* | |
| 403 * add keystream into the data buffer (this would be a lot faster | |
| 404 * if we could assume 32-bit alignment!) | |
| 405 */ | |
| 406 | |
| 407 #if ALIGN_32 | |
| 408 b = (uint32_t *)buf; | |
| 409 *b++ ^= c->keystream_buffer.v32[0]; | |
| 410 *b++ ^= c->keystream_buffer.v32[1]; | |
| 411 *b++ ^= c->keystream_buffer.v32[2]; | |
| 412 *b++ ^= c->keystream_buffer.v32[3]; | |
| 413 buf = (uint8_t *)b; | |
| 414 #else | |
| 415 if ((((unsigned long) buf) & 0x03) != 0) { | |
| 416 *buf++ ^= c->keystream_buffer.v8[0]; | |
| 417 *buf++ ^= c->keystream_buffer.v8[1]; | |
| 418 *buf++ ^= c->keystream_buffer.v8[2]; | |
| 419 *buf++ ^= c->keystream_buffer.v8[3]; | |
| 420 *buf++ ^= c->keystream_buffer.v8[4]; | |
| 421 *buf++ ^= c->keystream_buffer.v8[5]; | |
| 422 *buf++ ^= c->keystream_buffer.v8[6]; | |
| 423 *buf++ ^= c->keystream_buffer.v8[7]; | |
| 424 *buf++ ^= c->keystream_buffer.v8[8]; | |
| 425 *buf++ ^= c->keystream_buffer.v8[9]; | |
| 426 *buf++ ^= c->keystream_buffer.v8[10]; | |
| 427 *buf++ ^= c->keystream_buffer.v8[11]; | |
| 428 *buf++ ^= c->keystream_buffer.v8[12]; | |
| 429 *buf++ ^= c->keystream_buffer.v8[13]; | |
| 430 *buf++ ^= c->keystream_buffer.v8[14]; | |
| 431 *buf++ ^= c->keystream_buffer.v8[15]; | |
| 432 } else { | |
| 433 b = (uint32_t *)buf; | |
| 434 *b++ ^= c->keystream_buffer.v32[0]; | |
| 435 *b++ ^= c->keystream_buffer.v32[1]; | |
| 436 *b++ ^= c->keystream_buffer.v32[2]; | |
| 437 *b++ ^= c->keystream_buffer.v32[3]; | |
| 438 buf = (uint8_t *)b; | |
| 439 } | |
| 440 #endif /* #if ALIGN_32 */ | |
| 441 | |
| 442 } | |
| 443 | |
| 444 /* if there is a tail end of the data, process it */ | |
| 445 if ((bytes_to_encr & 0xf) != 0) { | |
| 446 | |
| 447 /* fill buffer with new keystream */ | |
| 448 aes_icm_advance_ismacryp(c, forIsmacryp); | |
| 449 | |
| 450 for (i=0; i < (bytes_to_encr & 0xf); i++) | |
| 451 *buf++ ^= c->keystream_buffer.v8[i]; | |
| 452 | |
| 453 /* reset the keystream buffer size to right value */ | |
| 454 c->bytes_in_buffer = sizeof(v128_t) - i; | |
| 455 } else { | |
| 456 | |
| 457 /* no tail, so just reset the keystream buffer size to zero */ | |
| 458 c->bytes_in_buffer = 0; | |
| 459 | |
| 460 } | |
| 461 | |
| 462 return err_status_ok; | |
| 463 } | |
| 464 | |
| 465 err_status_t | |
| 466 aes_icm_encrypt(aes_icm_ctx_t *c, unsigned char *buf, unsigned int *enc_len) { | |
| 467 return aes_icm_encrypt_ismacryp(c, buf, enc_len, 0); | |
| 468 } | |
| 469 | |
| 470 err_status_t | |
| 471 aes_icm_output(aes_icm_ctx_t *c, uint8_t *buffer, unsigned int num_octets_to_out
put) { | |
| 472 unsigned int len = num_octets_to_output; | |
| 473 | |
| 474 /* zeroize the buffer */ | |
| 475 octet_string_set_to_zero(buffer, num_octets_to_output); | |
| 476 | |
| 477 /* exor keystream into buffer */ | |
| 478 return aes_icm_encrypt(c, buffer, &len); | |
| 479 } | |
| 480 | |
| 481 uint16_t | |
| 482 aes_icm_bytes_encrypted(aes_icm_ctx_t *c) { | |
| 483 return htons(c->counter.v16[7]); | |
| 484 } | |
| 485 | |
| 486 char | |
| 487 aes_icm_description[] = "aes integer counter mode"; | |
| 488 | |
| 489 uint8_t aes_icm_test_case_0_key[30] = { | |
| 490 0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6, | |
| 491 0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c, | |
| 492 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, | |
| 493 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd | |
| 494 }; | |
| 495 | |
| 496 uint8_t aes_icm_test_case_0_nonce[16] = { | |
| 497 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 498 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 | |
| 499 }; | |
| 500 | |
| 501 uint8_t aes_icm_test_case_0_plaintext[32] = { | |
| 502 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 503 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 504 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 505 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 506 }; | |
| 507 | |
| 508 uint8_t aes_icm_test_case_0_ciphertext[32] = { | |
| 509 0xe0, 0x3e, 0xad, 0x09, 0x35, 0xc9, 0x5e, 0x80, | |
| 510 0xe1, 0x66, 0xb1, 0x6d, 0xd9, 0x2b, 0x4e, 0xb4, | |
| 511 0xd2, 0x35, 0x13, 0x16, 0x2b, 0x02, 0xd0, 0xf7, | |
| 512 0x2a, 0x43, 0xa2, 0xfe, 0x4a, 0x5f, 0x97, 0xab | |
| 513 }; | |
| 514 | |
| 515 cipher_test_case_t aes_icm_test_case_0 = { | |
| 516 30, /* octets in key */ | |
| 517 aes_icm_test_case_0_key, /* key */ | |
| 518 aes_icm_test_case_0_nonce, /* packet index */ | |
| 519 32, /* octets in plaintext */ | |
| 520 aes_icm_test_case_0_plaintext, /* plaintext */ | |
| 521 32, /* octets in ciphertext */ | |
| 522 aes_icm_test_case_0_ciphertext, /* ciphertext */ | |
| 523 0, | |
| 524 NULL, | |
| 525 0, | |
| 526 NULL /* pointer to next testcase */ | |
| 527 }; | |
| 528 | |
| 529 uint8_t aes_icm_test_case_1_key[46] = { | |
| 530 0x57, 0xf8, 0x2f, 0xe3, 0x61, 0x3f, 0xd1, 0x70, | |
| 531 0xa8, 0x5e, 0xc9, 0x3c, 0x40, 0xb1, 0xf0, 0x92, | |
| 532 0x2e, 0xc4, 0xcb, 0x0d, 0xc0, 0x25, 0xb5, 0x82, | |
| 533 0x72, 0x14, 0x7c, 0xc4, 0x38, 0x94, 0x4a, 0x98, | |
| 534 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, | |
| 535 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd | |
| 536 }; | |
| 537 | |
| 538 uint8_t aes_icm_test_case_1_nonce[16] = { | |
| 539 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 540 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 | |
| 541 }; | |
| 542 | |
| 543 uint8_t aes_icm_test_case_1_plaintext[32] = { | |
| 544 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 545 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 546 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 547 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, | |
| 548 }; | |
| 549 | |
| 550 uint8_t aes_icm_test_case_1_ciphertext[32] = { | |
| 551 0x92, 0xbd, 0xd2, 0x8a, 0x93, 0xc3, 0xf5, 0x25, | |
| 552 0x11, 0xc6, 0x77, 0xd0, 0x8b, 0x55, 0x15, 0xa4, | |
| 553 0x9d, 0xa7, 0x1b, 0x23, 0x78, 0xa8, 0x54, 0xf6, | |
| 554 0x70, 0x50, 0x75, 0x6d, 0xed, 0x16, 0x5b, 0xac | |
| 555 }; | |
| 556 | |
| 557 cipher_test_case_t aes_icm_test_case_1 = { | |
| 558 46, /* octets in key */ | |
| 559 aes_icm_test_case_1_key, /* key */ | |
| 560 aes_icm_test_case_1_nonce, /* packet index */ | |
| 561 32, /* octets in plaintext */ | |
| 562 aes_icm_test_case_1_plaintext, /* plaintext */ | |
| 563 32, /* octets in ciphertext */ | |
| 564 aes_icm_test_case_1_ciphertext, /* ciphertext */ | |
| 565 0, | |
| 566 NULL, | |
| 567 0, | |
| 568 &aes_icm_test_case_0 /* pointer to next testcase */ | |
| 569 }; | |
| 570 | |
| 571 | |
| 572 | |
| 573 /* | |
| 574 * note: the encrypt function is identical to the decrypt function | |
| 575 */ | |
| 576 | |
| 577 cipher_type_t aes_icm = { | |
| 578 (cipher_alloc_func_t) aes_icm_alloc, | |
| 579 (cipher_dealloc_func_t) aes_icm_dealloc, | |
| 580 (cipher_init_func_t) aes_icm_context_init, | |
| 581 (cipher_set_aad_func_t) 0, | |
| 582 (cipher_encrypt_func_t) aes_icm_encrypt, | |
| 583 (cipher_decrypt_func_t) aes_icm_encrypt, | |
| 584 (cipher_set_iv_func_t) aes_icm_set_iv, | |
| 585 (cipher_get_tag_func_t) 0, | |
| 586 (char *) aes_icm_description, | |
| 587 (int) 0, /* instance count */ | |
| 588 (cipher_test_case_t *) &aes_icm_test_case_1, | |
| 589 (debug_module_t *) &mod_aes_icm, | |
| 590 (cipher_type_id_t) AES_ICM | |
| 591 }; | |
| 592 | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2344973002:
Update libsrtp to version 2.0 (Closed)
