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aa6bb135 RS |
1 | /* |
2 | * Copyright 2011-2016 The OpenSSL Project Authors. All Rights Reserved. | |
c608171d | 3 | * |
aa6bb135 RS |
4 | * Licensed under the OpenSSL license (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
c608171d AP |
8 | */ |
9 | ||
10 | #include <openssl/opensslconf.h> | |
11 | ||
12 | #include <stdio.h> | |
13 | #include <string.h> | |
14 | ||
5158c763 MC |
15 | #include <openssl/evp.h> |
16 | #include <openssl/objects.h> | |
17 | #include <openssl/aes.h> | |
18 | #include <openssl/sha.h> | |
19 | #include <openssl/rand.h> | |
20 | #include "modes_lcl.h" | |
21 | #include "internal/evp_int.h" | |
70428ead | 22 | #include "internal/constant_time_locl.h" |
5158c763 MC |
23 | |
24 | #ifndef EVP_CIPH_FLAG_AEAD_CIPHER | |
25 | # define EVP_CIPH_FLAG_AEAD_CIPHER 0x200000 | |
26 | # define EVP_CTRL_AEAD_TLS1_AAD 0x16 | |
27 | # define EVP_CTRL_AEAD_SET_MAC_KEY 0x17 | |
28 | #endif | |
0f113f3e | 29 | |
5158c763 MC |
30 | #if !defined(EVP_CIPH_FLAG_DEFAULT_ASN1) |
31 | # define EVP_CIPH_FLAG_DEFAULT_ASN1 0 | |
32 | #endif | |
0f113f3e | 33 | |
5158c763 MC |
34 | #if !defined(EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK) |
35 | # define EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK 0 | |
36 | #endif | |
0f113f3e | 37 | |
5158c763 | 38 | #define TLS1_1_VERSION 0x0302 |
0f113f3e MC |
39 | |
40 | typedef struct { | |
41 | AES_KEY ks; | |
42 | SHA_CTX head, tail, md; | |
43 | size_t payload_length; /* AAD length in decrypt case */ | |
c608171d | 44 | union { |
0f113f3e MC |
45 | unsigned int tls_ver; |
46 | unsigned char tls_aad[16]; /* 13 used */ | |
c608171d | 47 | } aux; |
0f113f3e | 48 | } EVP_AES_HMAC_SHA1; |
c608171d | 49 | |
5158c763 | 50 | #define NO_PAYLOAD_LENGTH ((size_t)-1) |
fc90e42c | 51 | |
5158c763 | 52 | #if defined(AES_ASM) && ( \ |
0f113f3e | 53 | defined(__x86_64) || defined(__x86_64__) || \ |
b1a07c38 | 54 | defined(_M_AMD64) || defined(_M_X64) ) |
c608171d | 55 | |
f0fa5c83 | 56 | extern unsigned int OPENSSL_ia32cap_P[]; |
5158c763 | 57 | # define AESNI_CAPABLE (1<<(57-32)) |
c608171d AP |
58 | |
59 | int aesni_set_encrypt_key(const unsigned char *userKey, int bits, | |
0f113f3e | 60 | AES_KEY *key); |
c608171d | 61 | int aesni_set_decrypt_key(const unsigned char *userKey, int bits, |
0f113f3e | 62 | AES_KEY *key); |
c608171d AP |
63 | |
64 | void aesni_cbc_encrypt(const unsigned char *in, | |
0f113f3e MC |
65 | unsigned char *out, |
66 | size_t length, | |
67 | const AES_KEY *key, unsigned char *ivec, int enc); | |
c608171d | 68 | |
0f113f3e MC |
69 | void aesni_cbc_sha1_enc(const void *inp, void *out, size_t blocks, |
70 | const AES_KEY *key, unsigned char iv[16], | |
71 | SHA_CTX *ctx, const void *in0); | |
c608171d | 72 | |
0f113f3e MC |
73 | void aesni256_cbc_sha1_dec(const void *inp, void *out, size_t blocks, |
74 | const AES_KEY *key, unsigned char iv[16], | |
75 | SHA_CTX *ctx, const void *in0); | |
2f3af3dc | 76 | |
5158c763 | 77 | # define data(ctx) ((EVP_AES_HMAC_SHA1 *)EVP_CIPHER_CTX_get_cipher_data(ctx)) |
c608171d AP |
78 | |
79 | static int aesni_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx, | |
0f113f3e MC |
80 | const unsigned char *inkey, |
81 | const unsigned char *iv, int enc) | |
82 | { | |
83 | EVP_AES_HMAC_SHA1 *key = data(ctx); | |
84 | int ret; | |
c608171d | 85 | |
0f113f3e | 86 | if (enc) |
936166af RL |
87 | ret = aesni_set_encrypt_key(inkey, |
88 | EVP_CIPHER_CTX_key_length(ctx) * 8, | |
89 | &key->ks); | |
0f113f3e | 90 | else |
936166af RL |
91 | ret = aesni_set_decrypt_key(inkey, |
92 | EVP_CIPHER_CTX_key_length(ctx) * 8, | |
93 | &key->ks); | |
c608171d | 94 | |
0f113f3e MC |
95 | SHA1_Init(&key->head); /* handy when benchmarking */ |
96 | key->tail = key->head; | |
97 | key->md = key->head; | |
c608171d | 98 | |
0f113f3e | 99 | key->payload_length = NO_PAYLOAD_LENGTH; |
c608171d | 100 | |
0f113f3e | 101 | return ret < 0 ? 0 : 1; |
c608171d AP |
102 | } |
103 | ||
5158c763 MC |
104 | # define STITCHED_CALL |
105 | # undef STITCHED_DECRYPT_CALL | |
7f893258 | 106 | |
5158c763 MC |
107 | # if !defined(STITCHED_CALL) |
108 | # define aes_off 0 | |
109 | # endif | |
7f893258 | 110 | |
0f113f3e | 111 | void sha1_block_data_order(void *c, const void *p, size_t len); |
7f893258 | 112 | |
0f113f3e | 113 | static void sha1_update(SHA_CTX *c, const void *data, size_t len) |
7f893258 | 114 | { |
0f113f3e MC |
115 | const unsigned char *ptr = data; |
116 | size_t res; | |
117 | ||
118 | if ((res = c->num)) { | |
119 | res = SHA_CBLOCK - res; | |
120 | if (len < res) | |
121 | res = len; | |
122 | SHA1_Update(c, ptr, res); | |
123 | ptr += res; | |
124 | len -= res; | |
125 | } | |
126 | ||
127 | res = len % SHA_CBLOCK; | |
128 | len -= res; | |
129 | ||
130 | if (len) { | |
131 | sha1_block_data_order(c, ptr, len / SHA_CBLOCK); | |
132 | ||
133 | ptr += len; | |
134 | c->Nh += len >> 29; | |
135 | c->Nl += len <<= 3; | |
136 | if (c->Nl < (unsigned int)len) | |
137 | c->Nh++; | |
138 | } | |
139 | ||
140 | if (res) | |
141 | SHA1_Update(c, ptr, res); | |
142 | } | |
7f893258 | 143 | |
5158c763 MC |
144 | # ifdef SHA1_Update |
145 | # undef SHA1_Update | |
146 | # endif | |
147 | # define SHA1_Update sha1_update | |
7f893258 | 148 | |
5158c763 | 149 | # if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK |
7f893258 | 150 | |
0f113f3e MC |
151 | typedef struct { |
152 | unsigned int A[8], B[8], C[8], D[8], E[8]; | |
153 | } SHA1_MB_CTX; | |
154 | typedef struct { | |
155 | const unsigned char *ptr; | |
156 | int blocks; | |
157 | } HASH_DESC; | |
7f893258 | 158 | |
0f113f3e | 159 | void sha1_multi_block(SHA1_MB_CTX *, const HASH_DESC *, int); |
7f893258 | 160 | |
0f113f3e MC |
161 | typedef struct { |
162 | const unsigned char *inp; | |
163 | unsigned char *out; | |
164 | int blocks; | |
165 | u64 iv[2]; | |
166 | } CIPH_DESC; | |
7f893258 | 167 | |
0f113f3e | 168 | void aesni_multi_cbc_encrypt(CIPH_DESC *, void *, int); |
a69c0a1b | 169 | |
0f113f3e MC |
170 | static size_t tls1_1_multi_block_encrypt(EVP_AES_HMAC_SHA1 *key, |
171 | unsigned char *out, | |
172 | const unsigned char *inp, | |
173 | size_t inp_len, int n4x) | |
174 | { /* n4x is 1 or 2 */ | |
175 | HASH_DESC hash_d[8], edges[8]; | |
176 | CIPH_DESC ciph_d[8]; | |
177 | unsigned char storage[sizeof(SHA1_MB_CTX) + 32]; | |
178 | union { | |
179 | u64 q[16]; | |
180 | u32 d[32]; | |
181 | u8 c[128]; | |
182 | } blocks[8]; | |
183 | SHA1_MB_CTX *ctx; | |
184 | unsigned int frag, last, packlen, i, x4 = 4 * n4x, minblocks, processed = | |
185 | 0; | |
186 | size_t ret = 0; | |
187 | u8 *IVs; | |
5158c763 | 188 | # if defined(BSWAP8) |
0f113f3e | 189 | u64 seqnum; |
5158c763 | 190 | # endif |
0f113f3e MC |
191 | |
192 | /* ask for IVs in bulk */ | |
193 | if (RAND_bytes((IVs = blocks[0].c), 16 * x4) <= 0) | |
194 | return 0; | |
195 | ||
196 | ctx = (SHA1_MB_CTX *) (storage + 32 - ((size_t)storage % 32)); /* align */ | |
197 | ||
198 | frag = (unsigned int)inp_len >> (1 + n4x); | |
199 | last = (unsigned int)inp_len + frag - (frag << (1 + n4x)); | |
200 | if (last > frag && ((last + 13 + 9) % 64) < (x4 - 1)) { | |
201 | frag++; | |
202 | last -= x4 - 1; | |
203 | } | |
204 | ||
205 | packlen = 5 + 16 + ((frag + 20 + 16) & -16); | |
206 | ||
207 | /* populate descriptors with pointers and IVs */ | |
208 | hash_d[0].ptr = inp; | |
209 | ciph_d[0].inp = inp; | |
210 | /* 5+16 is place for header and explicit IV */ | |
211 | ciph_d[0].out = out + 5 + 16; | |
212 | memcpy(ciph_d[0].out - 16, IVs, 16); | |
213 | memcpy(ciph_d[0].iv, IVs, 16); | |
214 | IVs += 16; | |
215 | ||
216 | for (i = 1; i < x4; i++) { | |
217 | ciph_d[i].inp = hash_d[i].ptr = hash_d[i - 1].ptr + frag; | |
218 | ciph_d[i].out = ciph_d[i - 1].out + packlen; | |
219 | memcpy(ciph_d[i].out - 16, IVs, 16); | |
220 | memcpy(ciph_d[i].iv, IVs, 16); | |
221 | IVs += 16; | |
222 | } | |
223 | ||
5158c763 | 224 | # if defined(BSWAP8) |
0f113f3e MC |
225 | memcpy(blocks[0].c, key->md.data, 8); |
226 | seqnum = BSWAP8(blocks[0].q[0]); | |
5158c763 | 227 | # endif |
0f113f3e MC |
228 | for (i = 0; i < x4; i++) { |
229 | unsigned int len = (i == (x4 - 1) ? last : frag); | |
5158c763 | 230 | # if !defined(BSWAP8) |
0f113f3e | 231 | unsigned int carry, j; |
5158c763 | 232 | # endif |
0f113f3e MC |
233 | |
234 | ctx->A[i] = key->md.h0; | |
235 | ctx->B[i] = key->md.h1; | |
236 | ctx->C[i] = key->md.h2; | |
237 | ctx->D[i] = key->md.h3; | |
238 | ctx->E[i] = key->md.h4; | |
239 | ||
240 | /* fix seqnum */ | |
5158c763 | 241 | # if defined(BSWAP8) |
0f113f3e | 242 | blocks[i].q[0] = BSWAP8(seqnum + i); |
5158c763 | 243 | # else |
0f113f3e MC |
244 | for (carry = i, j = 8; j--;) { |
245 | blocks[i].c[j] = ((u8 *)key->md.data)[j] + carry; | |
246 | carry = (blocks[i].c[j] - carry) >> (sizeof(carry) * 8 - 1); | |
247 | } | |
5158c763 | 248 | # endif |
0f113f3e MC |
249 | blocks[i].c[8] = ((u8 *)key->md.data)[8]; |
250 | blocks[i].c[9] = ((u8 *)key->md.data)[9]; | |
251 | blocks[i].c[10] = ((u8 *)key->md.data)[10]; | |
252 | /* fix length */ | |
253 | blocks[i].c[11] = (u8)(len >> 8); | |
254 | blocks[i].c[12] = (u8)(len); | |
255 | ||
256 | memcpy(blocks[i].c + 13, hash_d[i].ptr, 64 - 13); | |
257 | hash_d[i].ptr += 64 - 13; | |
258 | hash_d[i].blocks = (len - (64 - 13)) / 64; | |
259 | ||
260 | edges[i].ptr = blocks[i].c; | |
261 | edges[i].blocks = 1; | |
262 | } | |
263 | ||
264 | /* hash 13-byte headers and first 64-13 bytes of inputs */ | |
265 | sha1_multi_block(ctx, edges, n4x); | |
266 | /* hash bulk inputs */ | |
5158c763 MC |
267 | # define MAXCHUNKSIZE 2048 |
268 | # if MAXCHUNKSIZE%64 | |
269 | # error "MAXCHUNKSIZE is not divisible by 64" | |
270 | # elif MAXCHUNKSIZE | |
0f113f3e MC |
271 | /* |
272 | * goal is to minimize pressure on L1 cache by moving in shorter steps, | |
273 | * so that hashed data is still in the cache by the time we encrypt it | |
274 | */ | |
275 | minblocks = ((frag <= last ? frag : last) - (64 - 13)) / 64; | |
276 | if (minblocks > MAXCHUNKSIZE / 64) { | |
277 | for (i = 0; i < x4; i++) { | |
278 | edges[i].ptr = hash_d[i].ptr; | |
279 | edges[i].blocks = MAXCHUNKSIZE / 64; | |
280 | ciph_d[i].blocks = MAXCHUNKSIZE / 16; | |
281 | } | |
282 | do { | |
283 | sha1_multi_block(ctx, edges, n4x); | |
284 | aesni_multi_cbc_encrypt(ciph_d, &key->ks, n4x); | |
285 | ||
286 | for (i = 0; i < x4; i++) { | |
287 | edges[i].ptr = hash_d[i].ptr += MAXCHUNKSIZE; | |
288 | hash_d[i].blocks -= MAXCHUNKSIZE / 64; | |
289 | edges[i].blocks = MAXCHUNKSIZE / 64; | |
290 | ciph_d[i].inp += MAXCHUNKSIZE; | |
291 | ciph_d[i].out += MAXCHUNKSIZE; | |
292 | ciph_d[i].blocks = MAXCHUNKSIZE / 16; | |
293 | memcpy(ciph_d[i].iv, ciph_d[i].out - 16, 16); | |
294 | } | |
295 | processed += MAXCHUNKSIZE; | |
296 | minblocks -= MAXCHUNKSIZE / 64; | |
297 | } while (minblocks > MAXCHUNKSIZE / 64); | |
298 | } | |
5158c763 MC |
299 | # endif |
300 | # undef MAXCHUNKSIZE | |
0f113f3e MC |
301 | sha1_multi_block(ctx, hash_d, n4x); |
302 | ||
303 | memset(blocks, 0, sizeof(blocks)); | |
304 | for (i = 0; i < x4; i++) { | |
305 | unsigned int len = (i == (x4 - 1) ? last : frag), | |
306 | off = hash_d[i].blocks * 64; | |
307 | const unsigned char *ptr = hash_d[i].ptr + off; | |
308 | ||
309 | off = (len - processed) - (64 - 13) - off; /* remainder actually */ | |
310 | memcpy(blocks[i].c, ptr, off); | |
311 | blocks[i].c[off] = 0x80; | |
312 | len += 64 + 13; /* 64 is HMAC header */ | |
313 | len *= 8; /* convert to bits */ | |
314 | if (off < (64 - 8)) { | |
5158c763 | 315 | # ifdef BSWAP4 |
0f113f3e | 316 | blocks[i].d[15] = BSWAP4(len); |
5158c763 | 317 | # else |
0f113f3e | 318 | PUTU32(blocks[i].c + 60, len); |
5158c763 | 319 | # endif |
0f113f3e MC |
320 | edges[i].blocks = 1; |
321 | } else { | |
5158c763 | 322 | # ifdef BSWAP4 |
0f113f3e | 323 | blocks[i].d[31] = BSWAP4(len); |
5158c763 | 324 | # else |
0f113f3e | 325 | PUTU32(blocks[i].c + 124, len); |
5158c763 | 326 | # endif |
0f113f3e MC |
327 | edges[i].blocks = 2; |
328 | } | |
329 | edges[i].ptr = blocks[i].c; | |
330 | } | |
331 | ||
332 | /* hash input tails and finalize */ | |
333 | sha1_multi_block(ctx, edges, n4x); | |
334 | ||
335 | memset(blocks, 0, sizeof(blocks)); | |
336 | for (i = 0; i < x4; i++) { | |
5158c763 | 337 | # ifdef BSWAP4 |
0f113f3e MC |
338 | blocks[i].d[0] = BSWAP4(ctx->A[i]); |
339 | ctx->A[i] = key->tail.h0; | |
340 | blocks[i].d[1] = BSWAP4(ctx->B[i]); | |
341 | ctx->B[i] = key->tail.h1; | |
342 | blocks[i].d[2] = BSWAP4(ctx->C[i]); | |
343 | ctx->C[i] = key->tail.h2; | |
344 | blocks[i].d[3] = BSWAP4(ctx->D[i]); | |
345 | ctx->D[i] = key->tail.h3; | |
346 | blocks[i].d[4] = BSWAP4(ctx->E[i]); | |
347 | ctx->E[i] = key->tail.h4; | |
348 | blocks[i].c[20] = 0x80; | |
349 | blocks[i].d[15] = BSWAP4((64 + 20) * 8); | |
5158c763 | 350 | # else |
0f113f3e MC |
351 | PUTU32(blocks[i].c + 0, ctx->A[i]); |
352 | ctx->A[i] = key->tail.h0; | |
353 | PUTU32(blocks[i].c + 4, ctx->B[i]); | |
354 | ctx->B[i] = key->tail.h1; | |
355 | PUTU32(blocks[i].c + 8, ctx->C[i]); | |
356 | ctx->C[i] = key->tail.h2; | |
357 | PUTU32(blocks[i].c + 12, ctx->D[i]); | |
358 | ctx->D[i] = key->tail.h3; | |
359 | PUTU32(blocks[i].c + 16, ctx->E[i]); | |
360 | ctx->E[i] = key->tail.h4; | |
361 | blocks[i].c[20] = 0x80; | |
362 | PUTU32(blocks[i].c + 60, (64 + 20) * 8); | |
5158c763 | 363 | # endif |
0f113f3e MC |
364 | edges[i].ptr = blocks[i].c; |
365 | edges[i].blocks = 1; | |
366 | } | |
367 | ||
368 | /* finalize MACs */ | |
369 | sha1_multi_block(ctx, edges, n4x); | |
370 | ||
371 | for (i = 0; i < x4; i++) { | |
372 | unsigned int len = (i == (x4 - 1) ? last : frag), pad, j; | |
373 | unsigned char *out0 = out; | |
374 | ||
375 | memcpy(ciph_d[i].out, ciph_d[i].inp, len - processed); | |
376 | ciph_d[i].inp = ciph_d[i].out; | |
377 | ||
378 | out += 5 + 16 + len; | |
379 | ||
380 | /* write MAC */ | |
381 | PUTU32(out + 0, ctx->A[i]); | |
382 | PUTU32(out + 4, ctx->B[i]); | |
383 | PUTU32(out + 8, ctx->C[i]); | |
384 | PUTU32(out + 12, ctx->D[i]); | |
385 | PUTU32(out + 16, ctx->E[i]); | |
386 | out += 20; | |
387 | len += 20; | |
388 | ||
389 | /* pad */ | |
390 | pad = 15 - len % 16; | |
391 | for (j = 0; j <= pad; j++) | |
392 | *(out++) = pad; | |
393 | len += pad + 1; | |
394 | ||
395 | ciph_d[i].blocks = (len - processed) / 16; | |
396 | len += 16; /* account for explicit iv */ | |
397 | ||
398 | /* arrange header */ | |
399 | out0[0] = ((u8 *)key->md.data)[8]; | |
400 | out0[1] = ((u8 *)key->md.data)[9]; | |
401 | out0[2] = ((u8 *)key->md.data)[10]; | |
402 | out0[3] = (u8)(len >> 8); | |
403 | out0[4] = (u8)(len); | |
404 | ||
405 | ret += len + 5; | |
406 | inp += frag; | |
407 | } | |
408 | ||
409 | aesni_multi_cbc_encrypt(ciph_d, &key->ks, n4x); | |
410 | ||
411 | OPENSSL_cleanse(blocks, sizeof(blocks)); | |
412 | OPENSSL_cleanse(ctx, sizeof(*ctx)); | |
413 | ||
414 | return ret; | |
7f893258 | 415 | } |
5158c763 | 416 | # endif |
7f893258 | 417 | |
c608171d | 418 | static int aesni_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
0f113f3e MC |
419 | const unsigned char *in, size_t len) |
420 | { | |
421 | EVP_AES_HMAC_SHA1 *key = data(ctx); | |
422 | unsigned int l; | |
423 | size_t plen = key->payload_length, iv = 0, /* explicit IV in TLS 1.1 and | |
424 | * later */ | |
425 | sha_off = 0; | |
5158c763 | 426 | # if defined(STITCHED_CALL) |
0f113f3e MC |
427 | size_t aes_off = 0, blocks; |
428 | ||
429 | sha_off = SHA_CBLOCK - key->md.num; | |
5158c763 | 430 | # endif |
0f113f3e MC |
431 | |
432 | key->payload_length = NO_PAYLOAD_LENGTH; | |
433 | ||
434 | if (len % AES_BLOCK_SIZE) | |
435 | return 0; | |
436 | ||
936166af | 437 | if (EVP_CIPHER_CTX_encrypting(ctx)) { |
0f113f3e MC |
438 | if (plen == NO_PAYLOAD_LENGTH) |
439 | plen = len; | |
440 | else if (len != | |
441 | ((plen + SHA_DIGEST_LENGTH + | |
442 | AES_BLOCK_SIZE) & -AES_BLOCK_SIZE)) | |
443 | return 0; | |
444 | else if (key->aux.tls_ver >= TLS1_1_VERSION) | |
445 | iv = AES_BLOCK_SIZE; | |
446 | ||
5158c763 | 447 | # if defined(STITCHED_CALL) |
0f113f3e MC |
448 | if (plen > (sha_off + iv) |
449 | && (blocks = (plen - (sha_off + iv)) / SHA_CBLOCK)) { | |
450 | SHA1_Update(&key->md, in + iv, sha_off); | |
451 | ||
452 | aesni_cbc_sha1_enc(in, out, blocks, &key->ks, | |
936166af RL |
453 | EVP_CIPHER_CTX_iv_noconst(ctx), |
454 | &key->md, in + iv + sha_off); | |
0f113f3e MC |
455 | blocks *= SHA_CBLOCK; |
456 | aes_off += blocks; | |
457 | sha_off += blocks; | |
458 | key->md.Nh += blocks >> 29; | |
459 | key->md.Nl += blocks <<= 3; | |
460 | if (key->md.Nl < (unsigned int)blocks) | |
461 | key->md.Nh++; | |
462 | } else { | |
463 | sha_off = 0; | |
464 | } | |
5158c763 | 465 | # endif |
0f113f3e MC |
466 | sha_off += iv; |
467 | SHA1_Update(&key->md, in + sha_off, plen - sha_off); | |
468 | ||
469 | if (plen != len) { /* "TLS" mode of operation */ | |
470 | if (in != out) | |
471 | memcpy(out + aes_off, in + aes_off, plen - aes_off); | |
472 | ||
473 | /* calculate HMAC and append it to payload */ | |
474 | SHA1_Final(out + plen, &key->md); | |
475 | key->md = key->tail; | |
476 | SHA1_Update(&key->md, out + plen, SHA_DIGEST_LENGTH); | |
477 | SHA1_Final(out + plen, &key->md); | |
478 | ||
479 | /* pad the payload|hmac */ | |
480 | plen += SHA_DIGEST_LENGTH; | |
481 | for (l = len - plen - 1; plen < len; plen++) | |
482 | out[plen] = l; | |
483 | /* encrypt HMAC|padding at once */ | |
484 | aesni_cbc_encrypt(out + aes_off, out + aes_off, len - aes_off, | |
936166af | 485 | &key->ks, EVP_CIPHER_CTX_iv_noconst(ctx), 1); |
0f113f3e MC |
486 | } else { |
487 | aesni_cbc_encrypt(in + aes_off, out + aes_off, len - aes_off, | |
936166af | 488 | &key->ks, EVP_CIPHER_CTX_iv_noconst(ctx), 1); |
0f113f3e MC |
489 | } |
490 | } else { | |
491 | union { | |
492 | unsigned int u[SHA_DIGEST_LENGTH / sizeof(unsigned int)]; | |
493 | unsigned char c[32 + SHA_DIGEST_LENGTH]; | |
494 | } mac, *pmac; | |
495 | ||
496 | /* arrange cache line alignment */ | |
497 | pmac = (void *)(((size_t)mac.c + 31) & ((size_t)0 - 32)); | |
498 | ||
499 | if (plen != NO_PAYLOAD_LENGTH) { /* "TLS" mode of operation */ | |
500 | size_t inp_len, mask, j, i; | |
501 | unsigned int res, maxpad, pad, bitlen; | |
502 | int ret = 1; | |
503 | union { | |
504 | unsigned int u[SHA_LBLOCK]; | |
505 | unsigned char c[SHA_CBLOCK]; | |
506 | } *data = (void *)key->md.data; | |
5158c763 | 507 | # if defined(STITCHED_DECRYPT_CALL) |
0f113f3e MC |
508 | unsigned char tail_iv[AES_BLOCK_SIZE]; |
509 | int stitch = 0; | |
5158c763 | 510 | # endif |
0f113f3e MC |
511 | |
512 | if ((key->aux.tls_aad[plen - 4] << 8 | key->aux.tls_aad[plen - 3]) | |
513 | >= TLS1_1_VERSION) { | |
514 | if (len < (AES_BLOCK_SIZE + SHA_DIGEST_LENGTH + 1)) | |
515 | return 0; | |
516 | ||
517 | /* omit explicit iv */ | |
936166af RL |
518 | memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), in, AES_BLOCK_SIZE); |
519 | ||
0f113f3e MC |
520 | in += AES_BLOCK_SIZE; |
521 | out += AES_BLOCK_SIZE; | |
522 | len -= AES_BLOCK_SIZE; | |
523 | } else if (len < (SHA_DIGEST_LENGTH + 1)) | |
524 | return 0; | |
525 | ||
5158c763 | 526 | # if defined(STITCHED_DECRYPT_CALL) |
0f113f3e MC |
527 | if (len >= 1024 && ctx->key_len == 32) { |
528 | /* decrypt last block */ | |
529 | memcpy(tail_iv, in + len - 2 * AES_BLOCK_SIZE, | |
530 | AES_BLOCK_SIZE); | |
531 | aesni_cbc_encrypt(in + len - AES_BLOCK_SIZE, | |
532 | out + len - AES_BLOCK_SIZE, AES_BLOCK_SIZE, | |
533 | &key->ks, tail_iv, 0); | |
534 | stitch = 1; | |
535 | } else | |
5158c763 | 536 | # endif |
0f113f3e | 537 | /* decrypt HMAC|padding at once */ |
936166af RL |
538 | aesni_cbc_encrypt(in, out, len, &key->ks, |
539 | EVP_CIPHER_CTX_iv_noconst(ctx), 0); | |
0f113f3e MC |
540 | |
541 | /* figure out payload length */ | |
542 | pad = out[len - 1]; | |
543 | maxpad = len - (SHA_DIGEST_LENGTH + 1); | |
544 | maxpad |= (255 - maxpad) >> (sizeof(maxpad) * 8 - 8); | |
545 | maxpad &= 255; | |
546 | ||
70428ead KR |
547 | ret &= constant_time_ge(maxpad, pad); |
548 | ||
0f113f3e MC |
549 | inp_len = len - (SHA_DIGEST_LENGTH + pad + 1); |
550 | mask = (0 - ((inp_len - len) >> (sizeof(inp_len) * 8 - 1))); | |
551 | inp_len &= mask; | |
552 | ret &= (int)mask; | |
553 | ||
554 | key->aux.tls_aad[plen - 2] = inp_len >> 8; | |
555 | key->aux.tls_aad[plen - 1] = inp_len; | |
556 | ||
557 | /* calculate HMAC */ | |
558 | key->md = key->head; | |
559 | SHA1_Update(&key->md, key->aux.tls_aad, plen); | |
560 | ||
5158c763 | 561 | # if defined(STITCHED_DECRYPT_CALL) |
0f113f3e MC |
562 | if (stitch) { |
563 | blocks = (len - (256 + 32 + SHA_CBLOCK)) / SHA_CBLOCK; | |
564 | aes_off = len - AES_BLOCK_SIZE - blocks * SHA_CBLOCK; | |
565 | sha_off = SHA_CBLOCK - plen; | |
566 | ||
567 | aesni_cbc_encrypt(in, out, aes_off, &key->ks, ctx->iv, 0); | |
568 | ||
569 | SHA1_Update(&key->md, out, sha_off); | |
570 | aesni256_cbc_sha1_dec(in + aes_off, | |
571 | out + aes_off, blocks, &key->ks, | |
572 | ctx->iv, &key->md, out + sha_off); | |
573 | ||
574 | sha_off += blocks *= SHA_CBLOCK; | |
575 | out += sha_off; | |
576 | len -= sha_off; | |
577 | inp_len -= sha_off; | |
578 | ||
579 | key->md.Nl += (blocks << 3); /* at most 18 bits */ | |
580 | memcpy(ctx->iv, tail_iv, AES_BLOCK_SIZE); | |
581 | } | |
5158c763 | 582 | # endif |
0f113f3e | 583 | |
5158c763 | 584 | # if 1 |
0f113f3e MC |
585 | len -= SHA_DIGEST_LENGTH; /* amend mac */ |
586 | if (len >= (256 + SHA_CBLOCK)) { | |
587 | j = (len - (256 + SHA_CBLOCK)) & (0 - SHA_CBLOCK); | |
588 | j += SHA_CBLOCK - key->md.num; | |
589 | SHA1_Update(&key->md, out, j); | |
590 | out += j; | |
591 | len -= j; | |
592 | inp_len -= j; | |
593 | } | |
594 | ||
595 | /* but pretend as if we hashed padded payload */ | |
596 | bitlen = key->md.Nl + (inp_len << 3); /* at most 18 bits */ | |
5158c763 | 597 | # ifdef BSWAP4 |
0f113f3e | 598 | bitlen = BSWAP4(bitlen); |
5158c763 | 599 | # else |
0f113f3e MC |
600 | mac.c[0] = 0; |
601 | mac.c[1] = (unsigned char)(bitlen >> 16); | |
602 | mac.c[2] = (unsigned char)(bitlen >> 8); | |
603 | mac.c[3] = (unsigned char)bitlen; | |
604 | bitlen = mac.u[0]; | |
5158c763 | 605 | # endif |
0f113f3e MC |
606 | |
607 | pmac->u[0] = 0; | |
608 | pmac->u[1] = 0; | |
609 | pmac->u[2] = 0; | |
610 | pmac->u[3] = 0; | |
611 | pmac->u[4] = 0; | |
612 | ||
613 | for (res = key->md.num, j = 0; j < len; j++) { | |
614 | size_t c = out[j]; | |
615 | mask = (j - inp_len) >> (sizeof(j) * 8 - 8); | |
616 | c &= mask; | |
617 | c |= 0x80 & ~mask & ~((inp_len - j) >> (sizeof(j) * 8 - 8)); | |
618 | data->c[res++] = (unsigned char)c; | |
619 | ||
620 | if (res != SHA_CBLOCK) | |
621 | continue; | |
622 | ||
623 | /* j is not incremented yet */ | |
624 | mask = 0 - ((inp_len + 7 - j) >> (sizeof(j) * 8 - 1)); | |
625 | data->u[SHA_LBLOCK - 1] |= bitlen & mask; | |
626 | sha1_block_data_order(&key->md, data, 1); | |
627 | mask &= 0 - ((j - inp_len - 72) >> (sizeof(j) * 8 - 1)); | |
628 | pmac->u[0] |= key->md.h0 & mask; | |
629 | pmac->u[1] |= key->md.h1 & mask; | |
630 | pmac->u[2] |= key->md.h2 & mask; | |
631 | pmac->u[3] |= key->md.h3 & mask; | |
632 | pmac->u[4] |= key->md.h4 & mask; | |
633 | res = 0; | |
634 | } | |
635 | ||
636 | for (i = res; i < SHA_CBLOCK; i++, j++) | |
637 | data->c[i] = 0; | |
638 | ||
639 | if (res > SHA_CBLOCK - 8) { | |
640 | mask = 0 - ((inp_len + 8 - j) >> (sizeof(j) * 8 - 1)); | |
641 | data->u[SHA_LBLOCK - 1] |= bitlen & mask; | |
642 | sha1_block_data_order(&key->md, data, 1); | |
643 | mask &= 0 - ((j - inp_len - 73) >> (sizeof(j) * 8 - 1)); | |
644 | pmac->u[0] |= key->md.h0 & mask; | |
645 | pmac->u[1] |= key->md.h1 & mask; | |
646 | pmac->u[2] |= key->md.h2 & mask; | |
647 | pmac->u[3] |= key->md.h3 & mask; | |
648 | pmac->u[4] |= key->md.h4 & mask; | |
649 | ||
650 | memset(data, 0, SHA_CBLOCK); | |
651 | j += 64; | |
652 | } | |
653 | data->u[SHA_LBLOCK - 1] = bitlen; | |
654 | sha1_block_data_order(&key->md, data, 1); | |
655 | mask = 0 - ((j - inp_len - 73) >> (sizeof(j) * 8 - 1)); | |
656 | pmac->u[0] |= key->md.h0 & mask; | |
657 | pmac->u[1] |= key->md.h1 & mask; | |
658 | pmac->u[2] |= key->md.h2 & mask; | |
659 | pmac->u[3] |= key->md.h3 & mask; | |
660 | pmac->u[4] |= key->md.h4 & mask; | |
661 | ||
5158c763 | 662 | # ifdef BSWAP4 |
0f113f3e MC |
663 | pmac->u[0] = BSWAP4(pmac->u[0]); |
664 | pmac->u[1] = BSWAP4(pmac->u[1]); | |
665 | pmac->u[2] = BSWAP4(pmac->u[2]); | |
666 | pmac->u[3] = BSWAP4(pmac->u[3]); | |
667 | pmac->u[4] = BSWAP4(pmac->u[4]); | |
5158c763 | 668 | # else |
0f113f3e MC |
669 | for (i = 0; i < 5; i++) { |
670 | res = pmac->u[i]; | |
671 | pmac->c[4 * i + 0] = (unsigned char)(res >> 24); | |
672 | pmac->c[4 * i + 1] = (unsigned char)(res >> 16); | |
673 | pmac->c[4 * i + 2] = (unsigned char)(res >> 8); | |
674 | pmac->c[4 * i + 3] = (unsigned char)res; | |
675 | } | |
5158c763 | 676 | # endif |
0f113f3e | 677 | len += SHA_DIGEST_LENGTH; |
5158c763 | 678 | # else |
0f113f3e MC |
679 | SHA1_Update(&key->md, out, inp_len); |
680 | res = key->md.num; | |
681 | SHA1_Final(pmac->c, &key->md); | |
682 | ||
683 | { | |
684 | unsigned int inp_blocks, pad_blocks; | |
685 | ||
686 | /* but pretend as if we hashed padded payload */ | |
687 | inp_blocks = | |
688 | 1 + ((SHA_CBLOCK - 9 - res) >> (sizeof(res) * 8 - 1)); | |
689 | res += (unsigned int)(len - inp_len); | |
690 | pad_blocks = res / SHA_CBLOCK; | |
691 | res %= SHA_CBLOCK; | |
692 | pad_blocks += | |
693 | 1 + ((SHA_CBLOCK - 9 - res) >> (sizeof(res) * 8 - 1)); | |
694 | for (; inp_blocks < pad_blocks; inp_blocks++) | |
695 | sha1_block_data_order(&key->md, data, 1); | |
696 | } | |
5158c763 | 697 | # endif |
0f113f3e MC |
698 | key->md = key->tail; |
699 | SHA1_Update(&key->md, pmac->c, SHA_DIGEST_LENGTH); | |
700 | SHA1_Final(pmac->c, &key->md); | |
701 | ||
702 | /* verify HMAC */ | |
703 | out += inp_len; | |
704 | len -= inp_len; | |
5158c763 | 705 | # if 1 |
0f113f3e MC |
706 | { |
707 | unsigned char *p = out + len - 1 - maxpad - SHA_DIGEST_LENGTH; | |
708 | size_t off = out - p; | |
709 | unsigned int c, cmask; | |
710 | ||
711 | maxpad += SHA_DIGEST_LENGTH; | |
712 | for (res = 0, i = 0, j = 0; j < maxpad; j++) { | |
713 | c = p[j]; | |
714 | cmask = | |
715 | ((int)(j - off - SHA_DIGEST_LENGTH)) >> (sizeof(int) * | |
716 | 8 - 1); | |
717 | res |= (c ^ pad) & ~cmask; /* ... and padding */ | |
718 | cmask &= ((int)(off - 1 - j)) >> (sizeof(int) * 8 - 1); | |
719 | res |= (c ^ pmac->c[i]) & cmask; | |
720 | i += 1 & cmask; | |
721 | } | |
722 | maxpad -= SHA_DIGEST_LENGTH; | |
723 | ||
724 | res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1)); | |
725 | ret &= (int)~res; | |
726 | } | |
5158c763 | 727 | # else |
0f113f3e MC |
728 | for (res = 0, i = 0; i < SHA_DIGEST_LENGTH; i++) |
729 | res |= out[i] ^ pmac->c[i]; | |
730 | res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1)); | |
731 | ret &= (int)~res; | |
732 | ||
733 | /* verify padding */ | |
734 | pad = (pad & ~res) | (maxpad & res); | |
735 | out = out + len - 1 - pad; | |
736 | for (res = 0, i = 0; i < pad; i++) | |
737 | res |= out[i] ^ pad; | |
738 | ||
739 | res = (0 - res) >> (sizeof(res) * 8 - 1); | |
740 | ret &= (int)~res; | |
5158c763 | 741 | # endif |
0f113f3e MC |
742 | return ret; |
743 | } else { | |
5158c763 | 744 | # if defined(STITCHED_DECRYPT_CALL) |
0f113f3e MC |
745 | if (len >= 1024 && ctx->key_len == 32) { |
746 | if (sha_off %= SHA_CBLOCK) | |
747 | blocks = (len - 3 * SHA_CBLOCK) / SHA_CBLOCK; | |
748 | else | |
749 | blocks = (len - 2 * SHA_CBLOCK) / SHA_CBLOCK; | |
750 | aes_off = len - blocks * SHA_CBLOCK; | |
751 | ||
752 | aesni_cbc_encrypt(in, out, aes_off, &key->ks, ctx->iv, 0); | |
753 | SHA1_Update(&key->md, out, sha_off); | |
754 | aesni256_cbc_sha1_dec(in + aes_off, | |
755 | out + aes_off, blocks, &key->ks, | |
756 | ctx->iv, &key->md, out + sha_off); | |
757 | ||
758 | sha_off += blocks *= SHA_CBLOCK; | |
759 | out += sha_off; | |
760 | len -= sha_off; | |
761 | ||
762 | key->md.Nh += blocks >> 29; | |
763 | key->md.Nl += blocks <<= 3; | |
764 | if (key->md.Nl < (unsigned int)blocks) | |
765 | key->md.Nh++; | |
766 | } else | |
5158c763 | 767 | # endif |
0f113f3e | 768 | /* decrypt HMAC|padding at once */ |
936166af RL |
769 | aesni_cbc_encrypt(in, out, len, &key->ks, |
770 | EVP_CIPHER_CTX_iv_noconst(ctx), 0); | |
0f113f3e MC |
771 | |
772 | SHA1_Update(&key->md, out, len); | |
773 | } | |
774 | } | |
775 | ||
776 | return 1; | |
777 | } | |
c608171d | 778 | |
0f113f3e MC |
779 | static int aesni_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, |
780 | void *ptr) | |
781 | { | |
782 | EVP_AES_HMAC_SHA1 *key = data(ctx); | |
783 | ||
784 | switch (type) { | |
785 | case EVP_CTRL_AEAD_SET_MAC_KEY: | |
786 | { | |
787 | unsigned int i; | |
788 | unsigned char hmac_key[64]; | |
789 | ||
790 | memset(hmac_key, 0, sizeof(hmac_key)); | |
791 | ||
792 | if (arg > (int)sizeof(hmac_key)) { | |
793 | SHA1_Init(&key->head); | |
794 | SHA1_Update(&key->head, ptr, arg); | |
795 | SHA1_Final(hmac_key, &key->head); | |
796 | } else { | |
797 | memcpy(hmac_key, ptr, arg); | |
798 | } | |
799 | ||
800 | for (i = 0; i < sizeof(hmac_key); i++) | |
801 | hmac_key[i] ^= 0x36; /* ipad */ | |
802 | SHA1_Init(&key->head); | |
803 | SHA1_Update(&key->head, hmac_key, sizeof(hmac_key)); | |
804 | ||
805 | for (i = 0; i < sizeof(hmac_key); i++) | |
806 | hmac_key[i] ^= 0x36 ^ 0x5c; /* opad */ | |
807 | SHA1_Init(&key->tail); | |
808 | SHA1_Update(&key->tail, hmac_key, sizeof(hmac_key)); | |
809 | ||
810 | OPENSSL_cleanse(hmac_key, sizeof(hmac_key)); | |
811 | ||
812 | return 1; | |
813 | } | |
814 | case EVP_CTRL_AEAD_TLS1_AAD: | |
815 | { | |
816 | unsigned char *p = ptr; | |
c8269881 MC |
817 | unsigned int len; |
818 | ||
819 | if (arg != EVP_AEAD_TLS1_AAD_LEN) | |
820 | return -1; | |
821 | ||
822 | len = p[arg - 2] << 8 | p[arg - 1]; | |
0f113f3e | 823 | |
936166af | 824 | if (EVP_CIPHER_CTX_encrypting(ctx)) { |
0f113f3e MC |
825 | key->payload_length = len; |
826 | if ((key->aux.tls_ver = | |
827 | p[arg - 4] << 8 | p[arg - 3]) >= TLS1_1_VERSION) { | |
828 | len -= AES_BLOCK_SIZE; | |
829 | p[arg - 2] = len >> 8; | |
830 | p[arg - 1] = len; | |
831 | } | |
832 | key->md = key->head; | |
833 | SHA1_Update(&key->md, p, arg); | |
834 | ||
835 | return (int)(((len + SHA_DIGEST_LENGTH + | |
836 | AES_BLOCK_SIZE) & -AES_BLOCK_SIZE) | |
837 | - len); | |
838 | } else { | |
0f113f3e MC |
839 | memcpy(key->aux.tls_aad, ptr, arg); |
840 | key->payload_length = arg; | |
841 | ||
842 | return SHA_DIGEST_LENGTH; | |
843 | } | |
844 | } | |
5158c763 | 845 | # if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK |
0f113f3e MC |
846 | case EVP_CTRL_TLS1_1_MULTIBLOCK_MAX_BUFSIZE: |
847 | return (int)(5 + 16 + ((arg + 20 + 16) & -16)); | |
848 | case EVP_CTRL_TLS1_1_MULTIBLOCK_AAD: | |
849 | { | |
850 | EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *param = | |
851 | (EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *) ptr; | |
852 | unsigned int n4x = 1, x4; | |
853 | unsigned int frag, last, packlen, inp_len; | |
854 | ||
855 | if (arg < (int)sizeof(EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM)) | |
856 | return -1; | |
857 | ||
858 | inp_len = param->inp[11] << 8 | param->inp[12]; | |
859 | ||
936166af | 860 | if (EVP_CIPHER_CTX_encrypting(ctx)) { |
0f113f3e MC |
861 | if ((param->inp[9] << 8 | param->inp[10]) < TLS1_1_VERSION) |
862 | return -1; | |
863 | ||
864 | if (inp_len) { | |
865 | if (inp_len < 4096) | |
866 | return 0; /* too short */ | |
867 | ||
868 | if (inp_len >= 8192 && OPENSSL_ia32cap_P[2] & (1 << 5)) | |
869 | n4x = 2; /* AVX2 */ | |
870 | } else if ((n4x = param->interleave / 4) && n4x <= 2) | |
871 | inp_len = param->len; | |
872 | else | |
873 | return -1; | |
874 | ||
875 | key->md = key->head; | |
876 | SHA1_Update(&key->md, param->inp, 13); | |
877 | ||
878 | x4 = 4 * n4x; | |
879 | n4x += 1; | |
880 | ||
881 | frag = inp_len >> n4x; | |
882 | last = inp_len + frag - (frag << n4x); | |
883 | if (last > frag && ((last + 13 + 9) % 64 < (x4 - 1))) { | |
884 | frag++; | |
885 | last -= x4 - 1; | |
886 | } | |
887 | ||
888 | packlen = 5 + 16 + ((frag + 20 + 16) & -16); | |
889 | packlen = (packlen << n4x) - packlen; | |
890 | packlen += 5 + 16 + ((last + 20 + 16) & -16); | |
891 | ||
892 | param->interleave = x4; | |
893 | ||
894 | return (int)packlen; | |
895 | } else | |
896 | return -1; /* not yet */ | |
897 | } | |
898 | case EVP_CTRL_TLS1_1_MULTIBLOCK_ENCRYPT: | |
899 | { | |
900 | EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *param = | |
901 | (EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *) ptr; | |
902 | ||
903 | return (int)tls1_1_multi_block_encrypt(key, param->out, | |
904 | param->inp, param->len, | |
905 | param->interleave / 4); | |
906 | } | |
907 | case EVP_CTRL_TLS1_1_MULTIBLOCK_DECRYPT: | |
5158c763 | 908 | # endif |
0f113f3e MC |
909 | default: |
910 | return -1; | |
911 | } | |
912 | } | |
2f3af3dc | 913 | |
0f113f3e | 914 | static EVP_CIPHER aesni_128_cbc_hmac_sha1_cipher = { |
5158c763 | 915 | # ifdef NID_aes_128_cbc_hmac_sha1 |
0f113f3e | 916 | NID_aes_128_cbc_hmac_sha1, |
5158c763 | 917 | # else |
0f113f3e | 918 | NID_undef, |
5158c763 | 919 | # endif |
936166af | 920 | AES_BLOCK_SIZE, 16, AES_BLOCK_SIZE, |
0f113f3e MC |
921 | EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 | |
922 | EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK, | |
923 | aesni_cbc_hmac_sha1_init_key, | |
924 | aesni_cbc_hmac_sha1_cipher, | |
925 | NULL, | |
926 | sizeof(EVP_AES_HMAC_SHA1), | |
927 | EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_set_asn1_iv, | |
928 | EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_get_asn1_iv, | |
929 | aesni_cbc_hmac_sha1_ctrl, | |
930 | NULL | |
931 | }; | |
932 | ||
933 | static EVP_CIPHER aesni_256_cbc_hmac_sha1_cipher = { | |
5158c763 | 934 | # ifdef NID_aes_256_cbc_hmac_sha1 |
0f113f3e | 935 | NID_aes_256_cbc_hmac_sha1, |
5158c763 | 936 | # else |
0f113f3e | 937 | NID_undef, |
5158c763 | 938 | # endif |
936166af | 939 | AES_BLOCK_SIZE, 32, AES_BLOCK_SIZE, |
0f113f3e MC |
940 | EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 | |
941 | EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK, | |
942 | aesni_cbc_hmac_sha1_init_key, | |
943 | aesni_cbc_hmac_sha1_cipher, | |
944 | NULL, | |
945 | sizeof(EVP_AES_HMAC_SHA1), | |
946 | EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_set_asn1_iv, | |
947 | EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_get_asn1_iv, | |
948 | aesni_cbc_hmac_sha1_ctrl, | |
949 | NULL | |
950 | }; | |
c608171d AP |
951 | |
952 | const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void) | |
0f113f3e MC |
953 | { |
954 | return (OPENSSL_ia32cap_P[1] & AESNI_CAPABLE ? | |
955 | &aesni_128_cbc_hmac_sha1_cipher : NULL); | |
956 | } | |
c608171d AP |
957 | |
958 | const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha1(void) | |
0f113f3e MC |
959 | { |
960 | return (OPENSSL_ia32cap_P[1] & AESNI_CAPABLE ? | |
961 | &aesni_256_cbc_hmac_sha1_cipher : NULL); | |
962 | } | |
5158c763 | 963 | #else |
c608171d | 964 | const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void) |
0f113f3e MC |
965 | { |
966 | return NULL; | |
967 | } | |
968 | ||
c608171d | 969 | const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha1(void) |
0f113f3e MC |
970 | { |
971 | return NULL; | |
972 | } | |
c608171d | 973 | #endif |