]>
Commit | Line | Data |
---|---|---|
aa6bb135 RS |
1 | /* |
2 | * Copyright 2013-2016 The OpenSSL Project Authors. All Rights Reserved. | |
8a97a330 | 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 | |
8a97a330 AP |
8 | */ |
9 | ||
10 | #include <openssl/opensslconf.h> | |
11 | ||
12 | #include <stdio.h> | |
13 | #include <string.h> | |
14 | ||
0f113f3e | 15 | |
5158c763 MC |
16 | #include <openssl/evp.h> |
17 | #include <openssl/objects.h> | |
18 | #include <openssl/aes.h> | |
19 | #include <openssl/sha.h> | |
20 | #include <openssl/rand.h> | |
d91f4568 | 21 | #include <internal/rand.h> |
5158c763 | 22 | #include "modes_lcl.h" |
70428ead | 23 | #include "internal/constant_time_locl.h" |
5158c763 | 24 | #include "internal/evp_int.h" |
d91f4568 | 25 | #include "evp_locl.h" |
5158c763 | 26 | |
0f113f3e MC |
27 | typedef struct { |
28 | AES_KEY ks; | |
29 | SHA256_CTX head, tail, md; | |
30 | size_t payload_length; /* AAD length in decrypt case */ | |
8a97a330 | 31 | union { |
0f113f3e MC |
32 | unsigned int tls_ver; |
33 | unsigned char tls_aad[16]; /* 13 used */ | |
8a97a330 | 34 | } aux; |
0f113f3e | 35 | } EVP_AES_HMAC_SHA256; |
8a97a330 | 36 | |
0f113f3e | 37 | # define NO_PAYLOAD_LENGTH ((size_t)-1) |
8a97a330 | 38 | |
5158c763 | 39 | #if defined(AES_ASM) && ( \ |
0f113f3e | 40 | defined(__x86_64) || defined(__x86_64__) || \ |
b1a07c38 | 41 | defined(_M_AMD64) || defined(_M_X64) ) |
8a97a330 | 42 | |
f0fa5c83 | 43 | extern unsigned int OPENSSL_ia32cap_P[]; |
5158c763 | 44 | # define AESNI_CAPABLE (1<<(57-32)) |
8a97a330 AP |
45 | |
46 | int aesni_set_encrypt_key(const unsigned char *userKey, int bits, | |
0f113f3e | 47 | AES_KEY *key); |
8a97a330 | 48 | int aesni_set_decrypt_key(const unsigned char *userKey, int bits, |
0f113f3e | 49 | AES_KEY *key); |
8a97a330 AP |
50 | |
51 | void aesni_cbc_encrypt(const unsigned char *in, | |
0f113f3e MC |
52 | unsigned char *out, |
53 | size_t length, | |
54 | const AES_KEY *key, unsigned char *ivec, int enc); | |
8a97a330 | 55 | |
0f113f3e MC |
56 | int aesni_cbc_sha256_enc(const void *inp, void *out, size_t blocks, |
57 | const AES_KEY *key, unsigned char iv[16], | |
58 | SHA256_CTX *ctx, const void *in0); | |
8a97a330 | 59 | |
5158c763 | 60 | # define data(ctx) ((EVP_AES_HMAC_SHA256 *)EVP_CIPHER_CTX_get_cipher_data(ctx)) |
8a97a330 AP |
61 | |
62 | static int aesni_cbc_hmac_sha256_init_key(EVP_CIPHER_CTX *ctx, | |
0f113f3e MC |
63 | const unsigned char *inkey, |
64 | const unsigned char *iv, int enc) | |
65 | { | |
66 | EVP_AES_HMAC_SHA256 *key = data(ctx); | |
67 | int ret; | |
8a97a330 | 68 | |
0f113f3e | 69 | if (enc) |
b88e95f3 KC |
70 | ret = aesni_set_encrypt_key(inkey, |
71 | EVP_CIPHER_CTX_key_length(ctx) * 8, | |
72 | &key->ks); | |
0f113f3e | 73 | else |
936166af RL |
74 | ret = aesni_set_decrypt_key(inkey, |
75 | EVP_CIPHER_CTX_key_length(ctx) * 8, | |
76 | &key->ks); | |
8a97a330 | 77 | |
0f113f3e MC |
78 | SHA256_Init(&key->head); /* handy when benchmarking */ |
79 | key->tail = key->head; | |
80 | key->md = key->head; | |
8a97a330 | 81 | |
0f113f3e | 82 | key->payload_length = NO_PAYLOAD_LENGTH; |
8a97a330 | 83 | |
0f113f3e MC |
84 | return ret < 0 ? 0 : 1; |
85 | } | |
8a97a330 | 86 | |
5158c763 | 87 | # define STITCHED_CALL |
8a97a330 | 88 | |
5158c763 MC |
89 | # if !defined(STITCHED_CALL) |
90 | # define aes_off 0 | |
91 | # endif | |
8a97a330 | 92 | |
0f113f3e | 93 | void sha256_block_data_order(void *c, const void *p, size_t len); |
8a97a330 | 94 | |
0f113f3e MC |
95 | static void sha256_update(SHA256_CTX *c, const void *data, size_t len) |
96 | { | |
97 | const unsigned char *ptr = data; | |
98 | size_t res; | |
99 | ||
100 | if ((res = c->num)) { | |
101 | res = SHA256_CBLOCK - res; | |
102 | if (len < res) | |
103 | res = len; | |
104 | SHA256_Update(c, ptr, res); | |
105 | ptr += res; | |
106 | len -= res; | |
107 | } | |
108 | ||
109 | res = len % SHA256_CBLOCK; | |
110 | len -= res; | |
111 | ||
112 | if (len) { | |
113 | sha256_block_data_order(c, ptr, len / SHA256_CBLOCK); | |
114 | ||
115 | ptr += len; | |
116 | c->Nh += len >> 29; | |
117 | c->Nl += len <<= 3; | |
118 | if (c->Nl < (unsigned int)len) | |
119 | c->Nh++; | |
120 | } | |
121 | ||
122 | if (res) | |
123 | SHA256_Update(c, ptr, res); | |
8a97a330 AP |
124 | } |
125 | ||
5158c763 MC |
126 | # ifdef SHA256_Update |
127 | # undef SHA256_Update | |
128 | # endif | |
129 | # define SHA256_Update sha256_update | |
8a97a330 | 130 | |
9d6fcd42 | 131 | # if !defined(OPENSSL_NO_MULTIBLOCK) |
7f893258 | 132 | |
0f113f3e MC |
133 | typedef struct { |
134 | unsigned int A[8], B[8], C[8], D[8], E[8], F[8], G[8], H[8]; | |
135 | } SHA256_MB_CTX; | |
136 | typedef struct { | |
137 | const unsigned char *ptr; | |
138 | int blocks; | |
139 | } HASH_DESC; | |
7f893258 | 140 | |
0f113f3e | 141 | void sha256_multi_block(SHA256_MB_CTX *, const HASH_DESC *, int); |
7f893258 | 142 | |
0f113f3e MC |
143 | typedef struct { |
144 | const unsigned char *inp; | |
145 | unsigned char *out; | |
146 | int blocks; | |
147 | u64 iv[2]; | |
148 | } CIPH_DESC; | |
7f893258 | 149 | |
0f113f3e | 150 | void aesni_multi_cbc_encrypt(CIPH_DESC *, void *, int); |
7f893258 | 151 | |
a69c0a1b | 152 | static size_t tls1_1_multi_block_encrypt(EVP_AES_HMAC_SHA256 *key, |
0f113f3e MC |
153 | unsigned char *out, |
154 | const unsigned char *inp, | |
d91f4568 KR |
155 | size_t inp_len, int n4x, |
156 | RAND_DRBG *drbg) | |
0f113f3e MC |
157 | { /* n4x is 1 or 2 */ |
158 | HASH_DESC hash_d[8], edges[8]; | |
159 | CIPH_DESC ciph_d[8]; | |
160 | unsigned char storage[sizeof(SHA256_MB_CTX) + 32]; | |
161 | union { | |
162 | u64 q[16]; | |
163 | u32 d[32]; | |
164 | u8 c[128]; | |
165 | } blocks[8]; | |
166 | SHA256_MB_CTX *ctx; | |
167 | unsigned int frag, last, packlen, i, x4 = 4 * n4x, minblocks, processed = | |
168 | 0; | |
169 | size_t ret = 0; | |
170 | u8 *IVs; | |
5158c763 | 171 | # if defined(BSWAP8) |
0f113f3e | 172 | u64 seqnum; |
5158c763 | 173 | # endif |
0f113f3e MC |
174 | |
175 | /* ask for IVs in bulk */ | |
d91f4568 KR |
176 | IVs = blocks[0].c; |
177 | if (drbg != NULL) { | |
178 | if (RAND_DRBG_bytes(drbg, IVs, 16 * x4) == 0) | |
179 | return 0; | |
180 | } else if (RAND_bytes(IVs, 16 * x4) <= 0) { | |
0f113f3e | 181 | return 0; |
d91f4568 | 182 | } |
0f113f3e MC |
183 | |
184 | /* align */ | |
185 | ctx = (SHA256_MB_CTX *) (storage + 32 - ((size_t)storage % 32)); | |
186 | ||
187 | frag = (unsigned int)inp_len >> (1 + n4x); | |
188 | last = (unsigned int)inp_len + frag - (frag << (1 + n4x)); | |
189 | if (last > frag && ((last + 13 + 9) % 64) < (x4 - 1)) { | |
190 | frag++; | |
191 | last -= x4 - 1; | |
192 | } | |
193 | ||
194 | packlen = 5 + 16 + ((frag + 32 + 16) & -16); | |
195 | ||
196 | /* populate descriptors with pointers and IVs */ | |
197 | hash_d[0].ptr = inp; | |
198 | ciph_d[0].inp = inp; | |
199 | /* 5+16 is place for header and explicit IV */ | |
200 | ciph_d[0].out = out + 5 + 16; | |
201 | memcpy(ciph_d[0].out - 16, IVs, 16); | |
202 | memcpy(ciph_d[0].iv, IVs, 16); | |
203 | IVs += 16; | |
204 | ||
205 | for (i = 1; i < x4; i++) { | |
206 | ciph_d[i].inp = hash_d[i].ptr = hash_d[i - 1].ptr + frag; | |
207 | ciph_d[i].out = ciph_d[i - 1].out + packlen; | |
208 | memcpy(ciph_d[i].out - 16, IVs, 16); | |
209 | memcpy(ciph_d[i].iv, IVs, 16); | |
210 | IVs += 16; | |
211 | } | |
212 | ||
5158c763 | 213 | # if defined(BSWAP8) |
0f113f3e MC |
214 | memcpy(blocks[0].c, key->md.data, 8); |
215 | seqnum = BSWAP8(blocks[0].q[0]); | |
5158c763 | 216 | # endif |
0f113f3e MC |
217 | for (i = 0; i < x4; i++) { |
218 | unsigned int len = (i == (x4 - 1) ? last : frag); | |
5158c763 | 219 | # if !defined(BSWAP8) |
0f113f3e | 220 | unsigned int carry, j; |
5158c763 | 221 | # endif |
0f113f3e MC |
222 | |
223 | ctx->A[i] = key->md.h[0]; | |
224 | ctx->B[i] = key->md.h[1]; | |
225 | ctx->C[i] = key->md.h[2]; | |
226 | ctx->D[i] = key->md.h[3]; | |
227 | ctx->E[i] = key->md.h[4]; | |
228 | ctx->F[i] = key->md.h[5]; | |
229 | ctx->G[i] = key->md.h[6]; | |
230 | ctx->H[i] = key->md.h[7]; | |
231 | ||
232 | /* fix seqnum */ | |
5158c763 | 233 | # if defined(BSWAP8) |
0f113f3e | 234 | blocks[i].q[0] = BSWAP8(seqnum + i); |
5158c763 | 235 | # else |
0f113f3e MC |
236 | for (carry = i, j = 8; j--;) { |
237 | blocks[i].c[j] = ((u8 *)key->md.data)[j] + carry; | |
238 | carry = (blocks[i].c[j] - carry) >> (sizeof(carry) * 8 - 1); | |
239 | } | |
5158c763 | 240 | # endif |
0f113f3e MC |
241 | blocks[i].c[8] = ((u8 *)key->md.data)[8]; |
242 | blocks[i].c[9] = ((u8 *)key->md.data)[9]; | |
243 | blocks[i].c[10] = ((u8 *)key->md.data)[10]; | |
244 | /* fix length */ | |
245 | blocks[i].c[11] = (u8)(len >> 8); | |
246 | blocks[i].c[12] = (u8)(len); | |
247 | ||
248 | memcpy(blocks[i].c + 13, hash_d[i].ptr, 64 - 13); | |
249 | hash_d[i].ptr += 64 - 13; | |
250 | hash_d[i].blocks = (len - (64 - 13)) / 64; | |
251 | ||
252 | edges[i].ptr = blocks[i].c; | |
253 | edges[i].blocks = 1; | |
254 | } | |
255 | ||
256 | /* hash 13-byte headers and first 64-13 bytes of inputs */ | |
257 | sha256_multi_block(ctx, edges, n4x); | |
258 | /* hash bulk inputs */ | |
5158c763 MC |
259 | # define MAXCHUNKSIZE 2048 |
260 | # if MAXCHUNKSIZE%64 | |
261 | # error "MAXCHUNKSIZE is not divisible by 64" | |
262 | # elif MAXCHUNKSIZE | |
0f113f3e MC |
263 | /* |
264 | * goal is to minimize pressure on L1 cache by moving in shorter steps, | |
265 | * so that hashed data is still in the cache by the time we encrypt it | |
266 | */ | |
267 | minblocks = ((frag <= last ? frag : last) - (64 - 13)) / 64; | |
268 | if (minblocks > MAXCHUNKSIZE / 64) { | |
269 | for (i = 0; i < x4; i++) { | |
270 | edges[i].ptr = hash_d[i].ptr; | |
271 | edges[i].blocks = MAXCHUNKSIZE / 64; | |
272 | ciph_d[i].blocks = MAXCHUNKSIZE / 16; | |
273 | } | |
274 | do { | |
275 | sha256_multi_block(ctx, edges, n4x); | |
276 | aesni_multi_cbc_encrypt(ciph_d, &key->ks, n4x); | |
277 | ||
278 | for (i = 0; i < x4; i++) { | |
279 | edges[i].ptr = hash_d[i].ptr += MAXCHUNKSIZE; | |
280 | hash_d[i].blocks -= MAXCHUNKSIZE / 64; | |
281 | edges[i].blocks = MAXCHUNKSIZE / 64; | |
282 | ciph_d[i].inp += MAXCHUNKSIZE; | |
283 | ciph_d[i].out += MAXCHUNKSIZE; | |
284 | ciph_d[i].blocks = MAXCHUNKSIZE / 16; | |
285 | memcpy(ciph_d[i].iv, ciph_d[i].out - 16, 16); | |
286 | } | |
287 | processed += MAXCHUNKSIZE; | |
288 | minblocks -= MAXCHUNKSIZE / 64; | |
289 | } while (minblocks > MAXCHUNKSIZE / 64); | |
290 | } | |
5158c763 MC |
291 | # endif |
292 | # undef MAXCHUNKSIZE | |
0f113f3e MC |
293 | sha256_multi_block(ctx, hash_d, n4x); |
294 | ||
295 | memset(blocks, 0, sizeof(blocks)); | |
296 | for (i = 0; i < x4; i++) { | |
297 | unsigned int len = (i == (x4 - 1) ? last : frag), | |
298 | off = hash_d[i].blocks * 64; | |
299 | const unsigned char *ptr = hash_d[i].ptr + off; | |
300 | ||
301 | off = (len - processed) - (64 - 13) - off; /* remainder actually */ | |
302 | memcpy(blocks[i].c, ptr, off); | |
303 | blocks[i].c[off] = 0x80; | |
304 | len += 64 + 13; /* 64 is HMAC header */ | |
305 | len *= 8; /* convert to bits */ | |
306 | if (off < (64 - 8)) { | |
5158c763 | 307 | # ifdef BSWAP4 |
0f113f3e | 308 | blocks[i].d[15] = BSWAP4(len); |
5158c763 | 309 | # else |
0f113f3e | 310 | PUTU32(blocks[i].c + 60, len); |
5158c763 | 311 | # endif |
0f113f3e MC |
312 | edges[i].blocks = 1; |
313 | } else { | |
5158c763 | 314 | # ifdef BSWAP4 |
0f113f3e | 315 | blocks[i].d[31] = BSWAP4(len); |
5158c763 | 316 | # else |
0f113f3e | 317 | PUTU32(blocks[i].c + 124, len); |
5158c763 | 318 | # endif |
0f113f3e MC |
319 | edges[i].blocks = 2; |
320 | } | |
321 | edges[i].ptr = blocks[i].c; | |
322 | } | |
323 | ||
324 | /* hash input tails and finalize */ | |
325 | sha256_multi_block(ctx, edges, n4x); | |
326 | ||
327 | memset(blocks, 0, sizeof(blocks)); | |
328 | for (i = 0; i < x4; i++) { | |
5158c763 | 329 | # ifdef BSWAP4 |
0f113f3e MC |
330 | blocks[i].d[0] = BSWAP4(ctx->A[i]); |
331 | ctx->A[i] = key->tail.h[0]; | |
332 | blocks[i].d[1] = BSWAP4(ctx->B[i]); | |
333 | ctx->B[i] = key->tail.h[1]; | |
334 | blocks[i].d[2] = BSWAP4(ctx->C[i]); | |
335 | ctx->C[i] = key->tail.h[2]; | |
336 | blocks[i].d[3] = BSWAP4(ctx->D[i]); | |
337 | ctx->D[i] = key->tail.h[3]; | |
338 | blocks[i].d[4] = BSWAP4(ctx->E[i]); | |
339 | ctx->E[i] = key->tail.h[4]; | |
340 | blocks[i].d[5] = BSWAP4(ctx->F[i]); | |
341 | ctx->F[i] = key->tail.h[5]; | |
342 | blocks[i].d[6] = BSWAP4(ctx->G[i]); | |
343 | ctx->G[i] = key->tail.h[6]; | |
344 | blocks[i].d[7] = BSWAP4(ctx->H[i]); | |
345 | ctx->H[i] = key->tail.h[7]; | |
346 | blocks[i].c[32] = 0x80; | |
347 | blocks[i].d[15] = BSWAP4((64 + 32) * 8); | |
5158c763 | 348 | # else |
0f113f3e MC |
349 | PUTU32(blocks[i].c + 0, ctx->A[i]); |
350 | ctx->A[i] = key->tail.h[0]; | |
351 | PUTU32(blocks[i].c + 4, ctx->B[i]); | |
352 | ctx->B[i] = key->tail.h[1]; | |
353 | PUTU32(blocks[i].c + 8, ctx->C[i]); | |
354 | ctx->C[i] = key->tail.h[2]; | |
355 | PUTU32(blocks[i].c + 12, ctx->D[i]); | |
356 | ctx->D[i] = key->tail.h[3]; | |
357 | PUTU32(blocks[i].c + 16, ctx->E[i]); | |
358 | ctx->E[i] = key->tail.h[4]; | |
359 | PUTU32(blocks[i].c + 20, ctx->F[i]); | |
360 | ctx->F[i] = key->tail.h[5]; | |
361 | PUTU32(blocks[i].c + 24, ctx->G[i]); | |
362 | ctx->G[i] = key->tail.h[6]; | |
363 | PUTU32(blocks[i].c + 28, ctx->H[i]); | |
364 | ctx->H[i] = key->tail.h[7]; | |
365 | blocks[i].c[32] = 0x80; | |
366 | PUTU32(blocks[i].c + 60, (64 + 32) * 8); | |
5158c763 | 367 | # endif |
0f113f3e MC |
368 | edges[i].ptr = blocks[i].c; |
369 | edges[i].blocks = 1; | |
370 | } | |
371 | ||
372 | /* finalize MACs */ | |
373 | sha256_multi_block(ctx, edges, n4x); | |
374 | ||
375 | for (i = 0; i < x4; i++) { | |
376 | unsigned int len = (i == (x4 - 1) ? last : frag), pad, j; | |
377 | unsigned char *out0 = out; | |
378 | ||
379 | memcpy(ciph_d[i].out, ciph_d[i].inp, len - processed); | |
380 | ciph_d[i].inp = ciph_d[i].out; | |
381 | ||
382 | out += 5 + 16 + len; | |
383 | ||
384 | /* write MAC */ | |
385 | PUTU32(out + 0, ctx->A[i]); | |
386 | PUTU32(out + 4, ctx->B[i]); | |
387 | PUTU32(out + 8, ctx->C[i]); | |
388 | PUTU32(out + 12, ctx->D[i]); | |
389 | PUTU32(out + 16, ctx->E[i]); | |
390 | PUTU32(out + 20, ctx->F[i]); | |
391 | PUTU32(out + 24, ctx->G[i]); | |
392 | PUTU32(out + 28, ctx->H[i]); | |
393 | out += 32; | |
394 | len += 32; | |
395 | ||
396 | /* pad */ | |
397 | pad = 15 - len % 16; | |
398 | for (j = 0; j <= pad; j++) | |
399 | *(out++) = pad; | |
400 | len += pad + 1; | |
401 | ||
402 | ciph_d[i].blocks = (len - processed) / 16; | |
403 | len += 16; /* account for explicit iv */ | |
404 | ||
405 | /* arrange header */ | |
406 | out0[0] = ((u8 *)key->md.data)[8]; | |
407 | out0[1] = ((u8 *)key->md.data)[9]; | |
408 | out0[2] = ((u8 *)key->md.data)[10]; | |
409 | out0[3] = (u8)(len >> 8); | |
410 | out0[4] = (u8)(len); | |
411 | ||
412 | ret += len + 5; | |
413 | inp += frag; | |
414 | } | |
415 | ||
416 | aesni_multi_cbc_encrypt(ciph_d, &key->ks, n4x); | |
417 | ||
418 | OPENSSL_cleanse(blocks, sizeof(blocks)); | |
419 | OPENSSL_cleanse(ctx, sizeof(*ctx)); | |
420 | ||
421 | return ret; | |
7f893258 | 422 | } |
5158c763 | 423 | # endif |
7f893258 | 424 | |
0f113f3e MC |
425 | static int aesni_cbc_hmac_sha256_cipher(EVP_CIPHER_CTX *ctx, |
426 | unsigned char *out, | |
427 | const unsigned char *in, size_t len) | |
428 | { | |
429 | EVP_AES_HMAC_SHA256 *key = data(ctx); | |
430 | unsigned int l; | |
431 | size_t plen = key->payload_length, iv = 0, /* explicit IV in TLS 1.1 and | |
432 | * later */ | |
433 | sha_off = 0; | |
5158c763 | 434 | # if defined(STITCHED_CALL) |
0f113f3e MC |
435 | size_t aes_off = 0, blocks; |
436 | ||
437 | sha_off = SHA256_CBLOCK - key->md.num; | |
5158c763 | 438 | # endif |
0f113f3e MC |
439 | |
440 | key->payload_length = NO_PAYLOAD_LENGTH; | |
441 | ||
442 | if (len % AES_BLOCK_SIZE) | |
443 | return 0; | |
444 | ||
936166af | 445 | if (EVP_CIPHER_CTX_encrypting(ctx)) { |
0f113f3e MC |
446 | if (plen == NO_PAYLOAD_LENGTH) |
447 | plen = len; | |
448 | else if (len != | |
449 | ((plen + SHA256_DIGEST_LENGTH + | |
450 | AES_BLOCK_SIZE) & -AES_BLOCK_SIZE)) | |
451 | return 0; | |
452 | else if (key->aux.tls_ver >= TLS1_1_VERSION) | |
453 | iv = AES_BLOCK_SIZE; | |
454 | ||
5158c763 | 455 | # if defined(STITCHED_CALL) |
a5fd24d1 AP |
456 | /* |
457 | * Assembly stitch handles AVX-capable processors, but its | |
458 | * performance is not optimal on AMD Jaguar, ~40% worse, for | |
459 | * unknown reasons. Incidentally processor in question supports | |
460 | * AVX, but not AMD-specific XOP extension, which can be used | |
461 | * to identify it and avoid stitch invocation. So that after we | |
462 | * establish that current CPU supports AVX, we even see if it's | |
463 | * either even XOP-capable Bulldozer-based or GenuineIntel one. | |
d0f6eb1d | 464 | * But SHAEXT-capable go ahead... |
a5fd24d1 | 465 | */ |
d0f6eb1d AP |
466 | if (((OPENSSL_ia32cap_P[2] & (1 << 29)) || /* SHAEXT? */ |
467 | ((OPENSSL_ia32cap_P[1] & (1 << (60 - 32))) && /* AVX? */ | |
468 | ((OPENSSL_ia32cap_P[1] & (1 << (43 - 32))) /* XOP? */ | |
469 | | (OPENSSL_ia32cap_P[0] & (1 << 30))))) && /* "Intel CPU"? */ | |
0f113f3e MC |
470 | plen > (sha_off + iv) && |
471 | (blocks = (plen - (sha_off + iv)) / SHA256_CBLOCK)) { | |
472 | SHA256_Update(&key->md, in + iv, sha_off); | |
473 | ||
474 | (void)aesni_cbc_sha256_enc(in, out, blocks, &key->ks, | |
936166af RL |
475 | EVP_CIPHER_CTX_iv_noconst(ctx), |
476 | &key->md, in + iv + sha_off); | |
0f113f3e MC |
477 | blocks *= SHA256_CBLOCK; |
478 | aes_off += blocks; | |
479 | sha_off += blocks; | |
480 | key->md.Nh += blocks >> 29; | |
481 | key->md.Nl += blocks <<= 3; | |
482 | if (key->md.Nl < (unsigned int)blocks) | |
483 | key->md.Nh++; | |
484 | } else { | |
485 | sha_off = 0; | |
486 | } | |
5158c763 | 487 | # endif |
0f113f3e MC |
488 | sha_off += iv; |
489 | SHA256_Update(&key->md, in + sha_off, plen - sha_off); | |
490 | ||
491 | if (plen != len) { /* "TLS" mode of operation */ | |
492 | if (in != out) | |
493 | memcpy(out + aes_off, in + aes_off, plen - aes_off); | |
494 | ||
495 | /* calculate HMAC and append it to payload */ | |
496 | SHA256_Final(out + plen, &key->md); | |
497 | key->md = key->tail; | |
498 | SHA256_Update(&key->md, out + plen, SHA256_DIGEST_LENGTH); | |
499 | SHA256_Final(out + plen, &key->md); | |
500 | ||
501 | /* pad the payload|hmac */ | |
502 | plen += SHA256_DIGEST_LENGTH; | |
503 | for (l = len - plen - 1; plen < len; plen++) | |
504 | out[plen] = l; | |
505 | /* encrypt HMAC|padding at once */ | |
506 | aesni_cbc_encrypt(out + aes_off, out + aes_off, len - aes_off, | |
936166af | 507 | &key->ks, EVP_CIPHER_CTX_iv_noconst(ctx), 1); |
0f113f3e MC |
508 | } else { |
509 | aesni_cbc_encrypt(in + aes_off, out + aes_off, len - aes_off, | |
936166af | 510 | &key->ks, EVP_CIPHER_CTX_iv_noconst(ctx), 1); |
0f113f3e MC |
511 | } |
512 | } else { | |
513 | union { | |
514 | unsigned int u[SHA256_DIGEST_LENGTH / sizeof(unsigned int)]; | |
515 | unsigned char c[64 + SHA256_DIGEST_LENGTH]; | |
516 | } mac, *pmac; | |
517 | ||
518 | /* arrange cache line alignment */ | |
519 | pmac = (void *)(((size_t)mac.c + 63) & ((size_t)0 - 64)); | |
520 | ||
521 | /* decrypt HMAC|padding at once */ | |
936166af RL |
522 | aesni_cbc_encrypt(in, out, len, &key->ks, |
523 | EVP_CIPHER_CTX_iv_noconst(ctx), 0); | |
0f113f3e MC |
524 | |
525 | if (plen != NO_PAYLOAD_LENGTH) { /* "TLS" mode of operation */ | |
526 | size_t inp_len, mask, j, i; | |
527 | unsigned int res, maxpad, pad, bitlen; | |
528 | int ret = 1; | |
529 | union { | |
530 | unsigned int u[SHA_LBLOCK]; | |
531 | unsigned char c[SHA256_CBLOCK]; | |
532 | } *data = (void *)key->md.data; | |
533 | ||
534 | if ((key->aux.tls_aad[plen - 4] << 8 | key->aux.tls_aad[plen - 3]) | |
535 | >= TLS1_1_VERSION) | |
536 | iv = AES_BLOCK_SIZE; | |
537 | ||
538 | if (len < (iv + SHA256_DIGEST_LENGTH + 1)) | |
539 | return 0; | |
540 | ||
541 | /* omit explicit iv */ | |
542 | out += iv; | |
543 | len -= iv; | |
544 | ||
545 | /* figure out payload length */ | |
546 | pad = out[len - 1]; | |
547 | maxpad = len - (SHA256_DIGEST_LENGTH + 1); | |
548 | maxpad |= (255 - maxpad) >> (sizeof(maxpad) * 8 - 8); | |
549 | maxpad &= 255; | |
550 | ||
335d0a46 MC |
551 | mask = constant_time_ge(maxpad, pad); |
552 | ret &= mask; | |
553 | /* | |
554 | * If pad is invalid then we will fail the above test but we must | |
555 | * continue anyway because we are in constant time code. However, | |
556 | * we'll use the maxpad value instead of the supplied pad to make | |
557 | * sure we perform well defined pointer arithmetic. | |
558 | */ | |
559 | pad = constant_time_select(mask, pad, maxpad); | |
70428ead | 560 | |
0f113f3e | 561 | inp_len = len - (SHA256_DIGEST_LENGTH + pad + 1); |
0f113f3e MC |
562 | |
563 | key->aux.tls_aad[plen - 2] = inp_len >> 8; | |
564 | key->aux.tls_aad[plen - 1] = inp_len; | |
565 | ||
566 | /* calculate HMAC */ | |
567 | key->md = key->head; | |
568 | SHA256_Update(&key->md, key->aux.tls_aad, plen); | |
569 | ||
5908555c | 570 | # if 1 /* see original reference version in #else */ |
0f113f3e MC |
571 | len -= SHA256_DIGEST_LENGTH; /* amend mac */ |
572 | if (len >= (256 + SHA256_CBLOCK)) { | |
573 | j = (len - (256 + SHA256_CBLOCK)) & (0 - SHA256_CBLOCK); | |
574 | j += SHA256_CBLOCK - key->md.num; | |
575 | SHA256_Update(&key->md, out, j); | |
576 | out += j; | |
577 | len -= j; | |
578 | inp_len -= j; | |
579 | } | |
580 | ||
581 | /* but pretend as if we hashed padded payload */ | |
582 | bitlen = key->md.Nl + (inp_len << 3); /* at most 18 bits */ | |
5158c763 | 583 | # ifdef BSWAP4 |
0f113f3e | 584 | bitlen = BSWAP4(bitlen); |
5158c763 | 585 | # else |
0f113f3e MC |
586 | mac.c[0] = 0; |
587 | mac.c[1] = (unsigned char)(bitlen >> 16); | |
588 | mac.c[2] = (unsigned char)(bitlen >> 8); | |
589 | mac.c[3] = (unsigned char)bitlen; | |
590 | bitlen = mac.u[0]; | |
5158c763 | 591 | # endif |
0f113f3e MC |
592 | |
593 | pmac->u[0] = 0; | |
594 | pmac->u[1] = 0; | |
595 | pmac->u[2] = 0; | |
596 | pmac->u[3] = 0; | |
597 | pmac->u[4] = 0; | |
598 | pmac->u[5] = 0; | |
599 | pmac->u[6] = 0; | |
600 | pmac->u[7] = 0; | |
601 | ||
602 | for (res = key->md.num, j = 0; j < len; j++) { | |
603 | size_t c = out[j]; | |
604 | mask = (j - inp_len) >> (sizeof(j) * 8 - 8); | |
605 | c &= mask; | |
606 | c |= 0x80 & ~mask & ~((inp_len - j) >> (sizeof(j) * 8 - 8)); | |
607 | data->c[res++] = (unsigned char)c; | |
608 | ||
609 | if (res != SHA256_CBLOCK) | |
610 | continue; | |
611 | ||
612 | /* j is not incremented yet */ | |
613 | mask = 0 - ((inp_len + 7 - j) >> (sizeof(j) * 8 - 1)); | |
614 | data->u[SHA_LBLOCK - 1] |= bitlen & mask; | |
615 | sha256_block_data_order(&key->md, data, 1); | |
616 | mask &= 0 - ((j - inp_len - 72) >> (sizeof(j) * 8 - 1)); | |
617 | pmac->u[0] |= key->md.h[0] & mask; | |
618 | pmac->u[1] |= key->md.h[1] & mask; | |
619 | pmac->u[2] |= key->md.h[2] & mask; | |
620 | pmac->u[3] |= key->md.h[3] & mask; | |
621 | pmac->u[4] |= key->md.h[4] & mask; | |
622 | pmac->u[5] |= key->md.h[5] & mask; | |
623 | pmac->u[6] |= key->md.h[6] & mask; | |
624 | pmac->u[7] |= key->md.h[7] & mask; | |
625 | res = 0; | |
626 | } | |
627 | ||
628 | for (i = res; i < SHA256_CBLOCK; i++, j++) | |
629 | data->c[i] = 0; | |
630 | ||
631 | if (res > SHA256_CBLOCK - 8) { | |
632 | mask = 0 - ((inp_len + 8 - j) >> (sizeof(j) * 8 - 1)); | |
633 | data->u[SHA_LBLOCK - 1] |= bitlen & mask; | |
634 | sha256_block_data_order(&key->md, data, 1); | |
635 | mask &= 0 - ((j - inp_len - 73) >> (sizeof(j) * 8 - 1)); | |
636 | pmac->u[0] |= key->md.h[0] & mask; | |
637 | pmac->u[1] |= key->md.h[1] & mask; | |
638 | pmac->u[2] |= key->md.h[2] & mask; | |
639 | pmac->u[3] |= key->md.h[3] & mask; | |
640 | pmac->u[4] |= key->md.h[4] & mask; | |
641 | pmac->u[5] |= key->md.h[5] & mask; | |
642 | pmac->u[6] |= key->md.h[6] & mask; | |
643 | pmac->u[7] |= key->md.h[7] & mask; | |
644 | ||
645 | memset(data, 0, SHA256_CBLOCK); | |
646 | j += 64; | |
647 | } | |
648 | data->u[SHA_LBLOCK - 1] = bitlen; | |
649 | sha256_block_data_order(&key->md, data, 1); | |
650 | mask = 0 - ((j - inp_len - 73) >> (sizeof(j) * 8 - 1)); | |
651 | pmac->u[0] |= key->md.h[0] & mask; | |
652 | pmac->u[1] |= key->md.h[1] & mask; | |
653 | pmac->u[2] |= key->md.h[2] & mask; | |
654 | pmac->u[3] |= key->md.h[3] & mask; | |
655 | pmac->u[4] |= key->md.h[4] & mask; | |
656 | pmac->u[5] |= key->md.h[5] & mask; | |
657 | pmac->u[6] |= key->md.h[6] & mask; | |
658 | pmac->u[7] |= key->md.h[7] & mask; | |
659 | ||
5158c763 | 660 | # ifdef BSWAP4 |
0f113f3e MC |
661 | pmac->u[0] = BSWAP4(pmac->u[0]); |
662 | pmac->u[1] = BSWAP4(pmac->u[1]); | |
663 | pmac->u[2] = BSWAP4(pmac->u[2]); | |
664 | pmac->u[3] = BSWAP4(pmac->u[3]); | |
665 | pmac->u[4] = BSWAP4(pmac->u[4]); | |
666 | pmac->u[5] = BSWAP4(pmac->u[5]); | |
667 | pmac->u[6] = BSWAP4(pmac->u[6]); | |
668 | pmac->u[7] = BSWAP4(pmac->u[7]); | |
5158c763 | 669 | # else |
0f113f3e MC |
670 | for (i = 0; i < 8; i++) { |
671 | res = pmac->u[i]; | |
672 | pmac->c[4 * i + 0] = (unsigned char)(res >> 24); | |
673 | pmac->c[4 * i + 1] = (unsigned char)(res >> 16); | |
674 | pmac->c[4 * i + 2] = (unsigned char)(res >> 8); | |
675 | pmac->c[4 * i + 3] = (unsigned char)res; | |
676 | } | |
5158c763 | 677 | # endif |
0f113f3e | 678 | len += SHA256_DIGEST_LENGTH; |
5158c763 | 679 | # else |
0f113f3e MC |
680 | SHA256_Update(&key->md, out, inp_len); |
681 | res = key->md.num; | |
682 | SHA256_Final(pmac->c, &key->md); | |
683 | ||
684 | { | |
685 | unsigned int inp_blocks, pad_blocks; | |
686 | ||
687 | /* but pretend as if we hashed padded payload */ | |
688 | inp_blocks = | |
689 | 1 + ((SHA256_CBLOCK - 9 - res) >> (sizeof(res) * 8 - 1)); | |
690 | res += (unsigned int)(len - inp_len); | |
691 | pad_blocks = res / SHA256_CBLOCK; | |
692 | res %= SHA256_CBLOCK; | |
693 | pad_blocks += | |
694 | 1 + ((SHA256_CBLOCK - 9 - res) >> (sizeof(res) * 8 - 1)); | |
695 | for (; inp_blocks < pad_blocks; inp_blocks++) | |
696 | sha1_block_data_order(&key->md, data, 1); | |
697 | } | |
5908555c | 698 | # endif /* pre-lucky-13 reference version of above */ |
0f113f3e MC |
699 | key->md = key->tail; |
700 | SHA256_Update(&key->md, pmac->c, SHA256_DIGEST_LENGTH); | |
701 | SHA256_Final(pmac->c, &key->md); | |
702 | ||
703 | /* verify HMAC */ | |
704 | out += inp_len; | |
705 | len -= inp_len; | |
5908555c | 706 | # if 1 /* see original reference version in #else */ |
0f113f3e MC |
707 | { |
708 | unsigned char *p = | |
709 | out + len - 1 - maxpad - SHA256_DIGEST_LENGTH; | |
710 | size_t off = out - p; | |
711 | unsigned int c, cmask; | |
712 | ||
713 | maxpad += SHA256_DIGEST_LENGTH; | |
714 | for (res = 0, i = 0, j = 0; j < maxpad; j++) { | |
715 | c = p[j]; | |
716 | cmask = | |
717 | ((int)(j - off - SHA256_DIGEST_LENGTH)) >> | |
718 | (sizeof(int) * 8 - 1); | |
719 | res |= (c ^ pad) & ~cmask; /* ... and padding */ | |
720 | cmask &= ((int)(off - 1 - j)) >> (sizeof(int) * 8 - 1); | |
721 | res |= (c ^ pmac->c[i]) & cmask; | |
722 | i += 1 & cmask; | |
723 | } | |
724 | maxpad -= SHA256_DIGEST_LENGTH; | |
725 | ||
726 | res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1)); | |
727 | ret &= (int)~res; | |
728 | } | |
5908555c | 729 | # else /* pre-lucky-13 reference version of above */ |
0f113f3e MC |
730 | for (res = 0, i = 0; i < SHA256_DIGEST_LENGTH; i++) |
731 | res |= out[i] ^ pmac->c[i]; | |
732 | res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1)); | |
733 | ret &= (int)~res; | |
734 | ||
735 | /* verify padding */ | |
736 | pad = (pad & ~res) | (maxpad & res); | |
737 | out = out + len - 1 - pad; | |
738 | for (res = 0, i = 0; i < pad; i++) | |
739 | res |= out[i] ^ pad; | |
740 | ||
741 | res = (0 - res) >> (sizeof(res) * 8 - 1); | |
742 | ret &= (int)~res; | |
5158c763 | 743 | # endif |
0f113f3e MC |
744 | return ret; |
745 | } else { | |
746 | SHA256_Update(&key->md, out, len); | |
747 | } | |
748 | } | |
749 | ||
750 | return 1; | |
751 | } | |
8a97a330 | 752 | |
0f113f3e MC |
753 | static int aesni_cbc_hmac_sha256_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, |
754 | void *ptr) | |
755 | { | |
756 | EVP_AES_HMAC_SHA256 *key = data(ctx); | |
757 | unsigned int u_arg = (unsigned int)arg; | |
758 | ||
759 | switch (type) { | |
760 | case EVP_CTRL_AEAD_SET_MAC_KEY: | |
761 | { | |
762 | unsigned int i; | |
763 | unsigned char hmac_key[64]; | |
764 | ||
765 | memset(hmac_key, 0, sizeof(hmac_key)); | |
766 | ||
767 | if (arg < 0) | |
768 | return -1; | |
769 | ||
770 | if (u_arg > sizeof(hmac_key)) { | |
771 | SHA256_Init(&key->head); | |
772 | SHA256_Update(&key->head, ptr, arg); | |
773 | SHA256_Final(hmac_key, &key->head); | |
774 | } else { | |
775 | memcpy(hmac_key, ptr, arg); | |
776 | } | |
777 | ||
778 | for (i = 0; i < sizeof(hmac_key); i++) | |
779 | hmac_key[i] ^= 0x36; /* ipad */ | |
780 | SHA256_Init(&key->head); | |
781 | SHA256_Update(&key->head, hmac_key, sizeof(hmac_key)); | |
782 | ||
783 | for (i = 0; i < sizeof(hmac_key); i++) | |
784 | hmac_key[i] ^= 0x36 ^ 0x5c; /* opad */ | |
785 | SHA256_Init(&key->tail); | |
786 | SHA256_Update(&key->tail, hmac_key, sizeof(hmac_key)); | |
787 | ||
788 | OPENSSL_cleanse(hmac_key, sizeof(hmac_key)); | |
789 | ||
790 | return 1; | |
791 | } | |
792 | case EVP_CTRL_AEAD_TLS1_AAD: | |
793 | { | |
794 | unsigned char *p = ptr; | |
1b6f5a4d | 795 | unsigned int len; |
0f113f3e | 796 | |
c8269881 MC |
797 | if (arg != EVP_AEAD_TLS1_AAD_LEN) |
798 | return -1; | |
799 | ||
1b6f5a4d BE |
800 | len = p[arg - 2] << 8 | p[arg - 1]; |
801 | ||
936166af | 802 | if (EVP_CIPHER_CTX_encrypting(ctx)) { |
0f113f3e MC |
803 | key->payload_length = len; |
804 | if ((key->aux.tls_ver = | |
805 | p[arg - 4] << 8 | p[arg - 3]) >= TLS1_1_VERSION) { | |
a68d3505 RS |
806 | if (len < AES_BLOCK_SIZE) |
807 | return 0; | |
0f113f3e MC |
808 | len -= AES_BLOCK_SIZE; |
809 | p[arg - 2] = len >> 8; | |
810 | p[arg - 1] = len; | |
811 | } | |
812 | key->md = key->head; | |
813 | SHA256_Update(&key->md, p, arg); | |
814 | ||
815 | return (int)(((len + SHA256_DIGEST_LENGTH + | |
816 | AES_BLOCK_SIZE) & -AES_BLOCK_SIZE) | |
817 | - len); | |
818 | } else { | |
0f113f3e MC |
819 | memcpy(key->aux.tls_aad, ptr, arg); |
820 | key->payload_length = arg; | |
821 | ||
822 | return SHA256_DIGEST_LENGTH; | |
823 | } | |
824 | } | |
9d6fcd42 | 825 | # if !defined(OPENSSL_NO_MULTIBLOCK) |
0f113f3e MC |
826 | case EVP_CTRL_TLS1_1_MULTIBLOCK_MAX_BUFSIZE: |
827 | return (int)(5 + 16 + ((arg + 32 + 16) & -16)); | |
828 | case EVP_CTRL_TLS1_1_MULTIBLOCK_AAD: | |
829 | { | |
830 | EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *param = | |
831 | (EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *) ptr; | |
832 | unsigned int n4x = 1, x4; | |
833 | unsigned int frag, last, packlen, inp_len; | |
834 | ||
835 | if (arg < 0) | |
836 | return -1; | |
837 | ||
838 | if (u_arg < sizeof(EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM)) | |
839 | return -1; | |
840 | ||
841 | inp_len = param->inp[11] << 8 | param->inp[12]; | |
842 | ||
936166af | 843 | if (EVP_CIPHER_CTX_encrypting(ctx)) { |
0f113f3e MC |
844 | if ((param->inp[9] << 8 | param->inp[10]) < TLS1_1_VERSION) |
845 | return -1; | |
846 | ||
847 | if (inp_len) { | |
848 | if (inp_len < 4096) | |
849 | return 0; /* too short */ | |
850 | ||
851 | if (inp_len >= 8192 && OPENSSL_ia32cap_P[2] & (1 << 5)) | |
852 | n4x = 2; /* AVX2 */ | |
853 | } else if ((n4x = param->interleave / 4) && n4x <= 2) | |
854 | inp_len = param->len; | |
855 | else | |
856 | return -1; | |
857 | ||
858 | key->md = key->head; | |
859 | SHA256_Update(&key->md, param->inp, 13); | |
860 | ||
861 | x4 = 4 * n4x; | |
862 | n4x += 1; | |
863 | ||
864 | frag = inp_len >> n4x; | |
865 | last = inp_len + frag - (frag << n4x); | |
866 | if (last > frag && ((last + 13 + 9) % 64 < (x4 - 1))) { | |
867 | frag++; | |
868 | last -= x4 - 1; | |
869 | } | |
870 | ||
871 | packlen = 5 + 16 + ((frag + 32 + 16) & -16); | |
872 | packlen = (packlen << n4x) - packlen; | |
873 | packlen += 5 + 16 + ((last + 32 + 16) & -16); | |
874 | ||
875 | param->interleave = x4; | |
876 | ||
877 | return (int)packlen; | |
878 | } else | |
879 | return -1; /* not yet */ | |
880 | } | |
881 | case EVP_CTRL_TLS1_1_MULTIBLOCK_ENCRYPT: | |
882 | { | |
883 | EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *param = | |
884 | (EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *) ptr; | |
885 | ||
886 | return (int)tls1_1_multi_block_encrypt(key, param->out, | |
887 | param->inp, param->len, | |
d91f4568 KR |
888 | param->interleave / 4, |
889 | ctx->drbg); | |
0f113f3e MC |
890 | } |
891 | case EVP_CTRL_TLS1_1_MULTIBLOCK_DECRYPT: | |
5158c763 | 892 | # endif |
0f113f3e MC |
893 | default: |
894 | return -1; | |
895 | } | |
896 | } | |
8a97a330 | 897 | |
0f113f3e | 898 | static EVP_CIPHER aesni_128_cbc_hmac_sha256_cipher = { |
5158c763 | 899 | # ifdef NID_aes_128_cbc_hmac_sha256 |
0f113f3e | 900 | NID_aes_128_cbc_hmac_sha256, |
5158c763 | 901 | # else |
0f113f3e | 902 | NID_undef, |
5158c763 | 903 | # endif |
936166af | 904 | AES_BLOCK_SIZE, 16, AES_BLOCK_SIZE, |
0f113f3e MC |
905 | EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 | |
906 | EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK, | |
907 | aesni_cbc_hmac_sha256_init_key, | |
908 | aesni_cbc_hmac_sha256_cipher, | |
909 | NULL, | |
910 | sizeof(EVP_AES_HMAC_SHA256), | |
911 | EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_set_asn1_iv, | |
912 | EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_get_asn1_iv, | |
913 | aesni_cbc_hmac_sha256_ctrl, | |
914 | NULL | |
915 | }; | |
916 | ||
917 | static EVP_CIPHER aesni_256_cbc_hmac_sha256_cipher = { | |
5158c763 | 918 | # ifdef NID_aes_256_cbc_hmac_sha256 |
0f113f3e | 919 | NID_aes_256_cbc_hmac_sha256, |
5158c763 | 920 | # else |
0f113f3e | 921 | NID_undef, |
5158c763 | 922 | # endif |
936166af | 923 | AES_BLOCK_SIZE, 32, AES_BLOCK_SIZE, |
0f113f3e MC |
924 | EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 | |
925 | EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK, | |
926 | aesni_cbc_hmac_sha256_init_key, | |
927 | aesni_cbc_hmac_sha256_cipher, | |
928 | NULL, | |
929 | sizeof(EVP_AES_HMAC_SHA256), | |
930 | EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_set_asn1_iv, | |
931 | EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_get_asn1_iv, | |
932 | aesni_cbc_hmac_sha256_ctrl, | |
933 | NULL | |
934 | }; | |
8a97a330 AP |
935 | |
936 | const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha256(void) | |
0f113f3e MC |
937 | { |
938 | return ((OPENSSL_ia32cap_P[1] & AESNI_CAPABLE) && | |
939 | aesni_cbc_sha256_enc(NULL, NULL, 0, NULL, NULL, NULL, NULL) ? | |
940 | &aesni_128_cbc_hmac_sha256_cipher : NULL); | |
941 | } | |
8a97a330 AP |
942 | |
943 | const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha256(void) | |
0f113f3e MC |
944 | { |
945 | return ((OPENSSL_ia32cap_P[1] & AESNI_CAPABLE) && | |
946 | aesni_cbc_sha256_enc(NULL, NULL, 0, NULL, NULL, NULL, NULL) ? | |
947 | &aesni_256_cbc_hmac_sha256_cipher : NULL); | |
948 | } | |
5158c763 | 949 | #else |
8a97a330 | 950 | const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha256(void) |
0f113f3e MC |
951 | { |
952 | return NULL; | |
953 | } | |
954 | ||
8a97a330 | 955 | const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha256(void) |
0f113f3e MC |
956 | { |
957 | return NULL; | |
958 | } | |
8a97a330 | 959 | #endif |