]>
Commit | Line | Data |
---|---|---|
aa6bb135 RS |
1 | /* |
2 | * Copyright 2011-2016 The OpenSSL Project Authors. All Rights Reserved. | |
c608171d | 3 | * |
4a8b0c55 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
aa6bb135 RS |
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 | 23 | |
0f113f3e MC |
24 | typedef struct { |
25 | AES_KEY ks; | |
26 | SHA_CTX head, tail, md; | |
27 | size_t payload_length; /* AAD length in decrypt case */ | |
c608171d | 28 | union { |
0f113f3e MC |
29 | unsigned int tls_ver; |
30 | unsigned char tls_aad[16]; /* 13 used */ | |
c608171d | 31 | } aux; |
0f113f3e | 32 | } EVP_AES_HMAC_SHA1; |
c608171d | 33 | |
5158c763 | 34 | #define NO_PAYLOAD_LENGTH ((size_t)-1) |
fc90e42c | 35 | |
5158c763 | 36 | #if defined(AES_ASM) && ( \ |
0f113f3e | 37 | defined(__x86_64) || defined(__x86_64__) || \ |
b1a07c38 | 38 | defined(_M_AMD64) || defined(_M_X64) ) |
c608171d | 39 | |
f0fa5c83 | 40 | extern unsigned int OPENSSL_ia32cap_P[]; |
5158c763 | 41 | # define AESNI_CAPABLE (1<<(57-32)) |
c608171d AP |
42 | |
43 | int aesni_set_encrypt_key(const unsigned char *userKey, int bits, | |
0f113f3e | 44 | AES_KEY *key); |
c608171d | 45 | int aesni_set_decrypt_key(const unsigned char *userKey, int bits, |
0f113f3e | 46 | AES_KEY *key); |
c608171d AP |
47 | |
48 | void aesni_cbc_encrypt(const unsigned char *in, | |
0f113f3e MC |
49 | unsigned char *out, |
50 | size_t length, | |
51 | const AES_KEY *key, unsigned char *ivec, int enc); | |
c608171d | 52 | |
0f113f3e MC |
53 | void aesni_cbc_sha1_enc(const void *inp, void *out, size_t blocks, |
54 | const AES_KEY *key, unsigned char iv[16], | |
55 | SHA_CTX *ctx, const void *in0); | |
c608171d | 56 | |
0f113f3e MC |
57 | void aesni256_cbc_sha1_dec(const void *inp, void *out, size_t blocks, |
58 | const AES_KEY *key, unsigned char iv[16], | |
59 | SHA_CTX *ctx, const void *in0); | |
2f3af3dc | 60 | |
5158c763 | 61 | # define data(ctx) ((EVP_AES_HMAC_SHA1 *)EVP_CIPHER_CTX_get_cipher_data(ctx)) |
c608171d AP |
62 | |
63 | static int aesni_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx, | |
0f113f3e MC |
64 | const unsigned char *inkey, |
65 | const unsigned char *iv, int enc) | |
66 | { | |
67 | EVP_AES_HMAC_SHA1 *key = data(ctx); | |
68 | int ret; | |
c608171d | 69 | |
0f113f3e | 70 | if (enc) |
936166af RL |
71 | ret = aesni_set_encrypt_key(inkey, |
72 | EVP_CIPHER_CTX_key_length(ctx) * 8, | |
73 | &key->ks); | |
0f113f3e | 74 | else |
936166af RL |
75 | ret = aesni_set_decrypt_key(inkey, |
76 | EVP_CIPHER_CTX_key_length(ctx) * 8, | |
77 | &key->ks); | |
c608171d | 78 | |
0f113f3e MC |
79 | SHA1_Init(&key->head); /* handy when benchmarking */ |
80 | key->tail = key->head; | |
81 | key->md = key->head; | |
c608171d | 82 | |
0f113f3e | 83 | key->payload_length = NO_PAYLOAD_LENGTH; |
c608171d | 84 | |
0f113f3e | 85 | return ret < 0 ? 0 : 1; |
c608171d AP |
86 | } |
87 | ||
5158c763 MC |
88 | # define STITCHED_CALL |
89 | # undef STITCHED_DECRYPT_CALL | |
7f893258 | 90 | |
5158c763 MC |
91 | # if !defined(STITCHED_CALL) |
92 | # define aes_off 0 | |
93 | # endif | |
7f893258 | 94 | |
0f113f3e | 95 | void sha1_block_data_order(void *c, const void *p, size_t len); |
7f893258 | 96 | |
0f113f3e | 97 | static void sha1_update(SHA_CTX *c, const void *data, size_t len) |
7f893258 | 98 | { |
0f113f3e MC |
99 | const unsigned char *ptr = data; |
100 | size_t res; | |
101 | ||
102 | if ((res = c->num)) { | |
103 | res = SHA_CBLOCK - res; | |
104 | if (len < res) | |
105 | res = len; | |
106 | SHA1_Update(c, ptr, res); | |
107 | ptr += res; | |
108 | len -= res; | |
109 | } | |
110 | ||
111 | res = len % SHA_CBLOCK; | |
112 | len -= res; | |
113 | ||
114 | if (len) { | |
115 | sha1_block_data_order(c, ptr, len / SHA_CBLOCK); | |
116 | ||
117 | ptr += len; | |
118 | c->Nh += len >> 29; | |
119 | c->Nl += len <<= 3; | |
120 | if (c->Nl < (unsigned int)len) | |
121 | c->Nh++; | |
122 | } | |
123 | ||
124 | if (res) | |
125 | SHA1_Update(c, ptr, res); | |
126 | } | |
7f893258 | 127 | |
5158c763 MC |
128 | # ifdef SHA1_Update |
129 | # undef SHA1_Update | |
130 | # endif | |
131 | # define SHA1_Update sha1_update | |
7f893258 | 132 | |
9d6fcd42 | 133 | # if !defined(OPENSSL_NO_MULTIBLOCK) |
7f893258 | 134 | |
0f113f3e MC |
135 | typedef struct { |
136 | unsigned int A[8], B[8], C[8], D[8], E[8]; | |
137 | } SHA1_MB_CTX; | |
138 | typedef struct { | |
139 | const unsigned char *ptr; | |
140 | int blocks; | |
141 | } HASH_DESC; | |
7f893258 | 142 | |
0f113f3e | 143 | void sha1_multi_block(SHA1_MB_CTX *, const HASH_DESC *, int); |
7f893258 | 144 | |
0f113f3e MC |
145 | typedef struct { |
146 | const unsigned char *inp; | |
147 | unsigned char *out; | |
148 | int blocks; | |
149 | u64 iv[2]; | |
150 | } CIPH_DESC; | |
7f893258 | 151 | |
0f113f3e | 152 | void aesni_multi_cbc_encrypt(CIPH_DESC *, void *, int); |
a69c0a1b | 153 | |
0f113f3e MC |
154 | static size_t tls1_1_multi_block_encrypt(EVP_AES_HMAC_SHA1 *key, |
155 | unsigned char *out, | |
156 | const unsigned char *inp, | |
16cfc2c9 | 157 | size_t inp_len, int n4x) |
0f113f3e MC |
158 | { /* n4x is 1 or 2 */ |
159 | HASH_DESC hash_d[8], edges[8]; | |
160 | CIPH_DESC ciph_d[8]; | |
161 | unsigned char storage[sizeof(SHA1_MB_CTX) + 32]; | |
162 | union { | |
163 | u64 q[16]; | |
164 | u32 d[32]; | |
165 | u8 c[128]; | |
166 | } blocks[8]; | |
167 | SHA1_MB_CTX *ctx; | |
168 | unsigned int frag, last, packlen, i, x4 = 4 * n4x, minblocks, processed = | |
169 | 0; | |
170 | size_t ret = 0; | |
171 | u8 *IVs; | |
5158c763 | 172 | # if defined(BSWAP8) |
0f113f3e | 173 | u64 seqnum; |
5158c763 | 174 | # endif |
0f113f3e MC |
175 | |
176 | /* ask for IVs in bulk */ | |
16cfc2c9 | 177 | if (RAND_bytes((IVs = blocks[0].c), 16 * x4) <= 0) |
0f113f3e MC |
178 | return 0; |
179 | ||
180 | ctx = (SHA1_MB_CTX *) (storage + 32 - ((size_t)storage % 32)); /* align */ | |
181 | ||
182 | frag = (unsigned int)inp_len >> (1 + n4x); | |
183 | last = (unsigned int)inp_len + frag - (frag << (1 + n4x)); | |
184 | if (last > frag && ((last + 13 + 9) % 64) < (x4 - 1)) { | |
185 | frag++; | |
186 | last -= x4 - 1; | |
187 | } | |
188 | ||
189 | packlen = 5 + 16 + ((frag + 20 + 16) & -16); | |
190 | ||
191 | /* populate descriptors with pointers and IVs */ | |
192 | hash_d[0].ptr = inp; | |
193 | ciph_d[0].inp = inp; | |
194 | /* 5+16 is place for header and explicit IV */ | |
195 | ciph_d[0].out = out + 5 + 16; | |
196 | memcpy(ciph_d[0].out - 16, IVs, 16); | |
197 | memcpy(ciph_d[0].iv, IVs, 16); | |
198 | IVs += 16; | |
199 | ||
200 | for (i = 1; i < x4; i++) { | |
201 | ciph_d[i].inp = hash_d[i].ptr = hash_d[i - 1].ptr + frag; | |
202 | ciph_d[i].out = ciph_d[i - 1].out + packlen; | |
203 | memcpy(ciph_d[i].out - 16, IVs, 16); | |
204 | memcpy(ciph_d[i].iv, IVs, 16); | |
205 | IVs += 16; | |
206 | } | |
207 | ||
5158c763 | 208 | # if defined(BSWAP8) |
0f113f3e MC |
209 | memcpy(blocks[0].c, key->md.data, 8); |
210 | seqnum = BSWAP8(blocks[0].q[0]); | |
5158c763 | 211 | # endif |
0f113f3e MC |
212 | for (i = 0; i < x4; i++) { |
213 | unsigned int len = (i == (x4 - 1) ? last : frag); | |
5158c763 | 214 | # if !defined(BSWAP8) |
0f113f3e | 215 | unsigned int carry, j; |
5158c763 | 216 | # endif |
0f113f3e MC |
217 | |
218 | ctx->A[i] = key->md.h0; | |
219 | ctx->B[i] = key->md.h1; | |
220 | ctx->C[i] = key->md.h2; | |
221 | ctx->D[i] = key->md.h3; | |
222 | ctx->E[i] = key->md.h4; | |
223 | ||
224 | /* fix seqnum */ | |
5158c763 | 225 | # if defined(BSWAP8) |
0f113f3e | 226 | blocks[i].q[0] = BSWAP8(seqnum + i); |
5158c763 | 227 | # else |
0f113f3e MC |
228 | for (carry = i, j = 8; j--;) { |
229 | blocks[i].c[j] = ((u8 *)key->md.data)[j] + carry; | |
230 | carry = (blocks[i].c[j] - carry) >> (sizeof(carry) * 8 - 1); | |
231 | } | |
5158c763 | 232 | # endif |
0f113f3e MC |
233 | blocks[i].c[8] = ((u8 *)key->md.data)[8]; |
234 | blocks[i].c[9] = ((u8 *)key->md.data)[9]; | |
235 | blocks[i].c[10] = ((u8 *)key->md.data)[10]; | |
236 | /* fix length */ | |
237 | blocks[i].c[11] = (u8)(len >> 8); | |
238 | blocks[i].c[12] = (u8)(len); | |
239 | ||
240 | memcpy(blocks[i].c + 13, hash_d[i].ptr, 64 - 13); | |
241 | hash_d[i].ptr += 64 - 13; | |
242 | hash_d[i].blocks = (len - (64 - 13)) / 64; | |
243 | ||
244 | edges[i].ptr = blocks[i].c; | |
245 | edges[i].blocks = 1; | |
246 | } | |
247 | ||
248 | /* hash 13-byte headers and first 64-13 bytes of inputs */ | |
249 | sha1_multi_block(ctx, edges, n4x); | |
250 | /* hash bulk inputs */ | |
5158c763 MC |
251 | # define MAXCHUNKSIZE 2048 |
252 | # if MAXCHUNKSIZE%64 | |
253 | # error "MAXCHUNKSIZE is not divisible by 64" | |
254 | # elif MAXCHUNKSIZE | |
0f113f3e MC |
255 | /* |
256 | * goal is to minimize pressure on L1 cache by moving in shorter steps, | |
257 | * so that hashed data is still in the cache by the time we encrypt it | |
258 | */ | |
259 | minblocks = ((frag <= last ? frag : last) - (64 - 13)) / 64; | |
260 | if (minblocks > MAXCHUNKSIZE / 64) { | |
261 | for (i = 0; i < x4; i++) { | |
262 | edges[i].ptr = hash_d[i].ptr; | |
263 | edges[i].blocks = MAXCHUNKSIZE / 64; | |
264 | ciph_d[i].blocks = MAXCHUNKSIZE / 16; | |
265 | } | |
266 | do { | |
267 | sha1_multi_block(ctx, edges, n4x); | |
268 | aesni_multi_cbc_encrypt(ciph_d, &key->ks, n4x); | |
269 | ||
270 | for (i = 0; i < x4; i++) { | |
271 | edges[i].ptr = hash_d[i].ptr += MAXCHUNKSIZE; | |
272 | hash_d[i].blocks -= MAXCHUNKSIZE / 64; | |
273 | edges[i].blocks = MAXCHUNKSIZE / 64; | |
274 | ciph_d[i].inp += MAXCHUNKSIZE; | |
275 | ciph_d[i].out += MAXCHUNKSIZE; | |
276 | ciph_d[i].blocks = MAXCHUNKSIZE / 16; | |
277 | memcpy(ciph_d[i].iv, ciph_d[i].out - 16, 16); | |
278 | } | |
279 | processed += MAXCHUNKSIZE; | |
280 | minblocks -= MAXCHUNKSIZE / 64; | |
281 | } while (minblocks > MAXCHUNKSIZE / 64); | |
282 | } | |
5158c763 MC |
283 | # endif |
284 | # undef MAXCHUNKSIZE | |
0f113f3e MC |
285 | sha1_multi_block(ctx, hash_d, n4x); |
286 | ||
287 | memset(blocks, 0, sizeof(blocks)); | |
288 | for (i = 0; i < x4; i++) { | |
289 | unsigned int len = (i == (x4 - 1) ? last : frag), | |
290 | off = hash_d[i].blocks * 64; | |
291 | const unsigned char *ptr = hash_d[i].ptr + off; | |
292 | ||
293 | off = (len - processed) - (64 - 13) - off; /* remainder actually */ | |
294 | memcpy(blocks[i].c, ptr, off); | |
295 | blocks[i].c[off] = 0x80; | |
296 | len += 64 + 13; /* 64 is HMAC header */ | |
297 | len *= 8; /* convert to bits */ | |
298 | if (off < (64 - 8)) { | |
5158c763 | 299 | # ifdef BSWAP4 |
0f113f3e | 300 | blocks[i].d[15] = BSWAP4(len); |
5158c763 | 301 | # else |
0f113f3e | 302 | PUTU32(blocks[i].c + 60, len); |
5158c763 | 303 | # endif |
0f113f3e MC |
304 | edges[i].blocks = 1; |
305 | } else { | |
5158c763 | 306 | # ifdef BSWAP4 |
0f113f3e | 307 | blocks[i].d[31] = BSWAP4(len); |
5158c763 | 308 | # else |
0f113f3e | 309 | PUTU32(blocks[i].c + 124, len); |
5158c763 | 310 | # endif |
0f113f3e MC |
311 | edges[i].blocks = 2; |
312 | } | |
313 | edges[i].ptr = blocks[i].c; | |
314 | } | |
315 | ||
316 | /* hash input tails and finalize */ | |
317 | sha1_multi_block(ctx, edges, n4x); | |
318 | ||
319 | memset(blocks, 0, sizeof(blocks)); | |
320 | for (i = 0; i < x4; i++) { | |
5158c763 | 321 | # ifdef BSWAP4 |
0f113f3e MC |
322 | blocks[i].d[0] = BSWAP4(ctx->A[i]); |
323 | ctx->A[i] = key->tail.h0; | |
324 | blocks[i].d[1] = BSWAP4(ctx->B[i]); | |
325 | ctx->B[i] = key->tail.h1; | |
326 | blocks[i].d[2] = BSWAP4(ctx->C[i]); | |
327 | ctx->C[i] = key->tail.h2; | |
328 | blocks[i].d[3] = BSWAP4(ctx->D[i]); | |
329 | ctx->D[i] = key->tail.h3; | |
330 | blocks[i].d[4] = BSWAP4(ctx->E[i]); | |
331 | ctx->E[i] = key->tail.h4; | |
332 | blocks[i].c[20] = 0x80; | |
333 | blocks[i].d[15] = BSWAP4((64 + 20) * 8); | |
5158c763 | 334 | # else |
0f113f3e MC |
335 | PUTU32(blocks[i].c + 0, ctx->A[i]); |
336 | ctx->A[i] = key->tail.h0; | |
337 | PUTU32(blocks[i].c + 4, ctx->B[i]); | |
338 | ctx->B[i] = key->tail.h1; | |
339 | PUTU32(blocks[i].c + 8, ctx->C[i]); | |
340 | ctx->C[i] = key->tail.h2; | |
341 | PUTU32(blocks[i].c + 12, ctx->D[i]); | |
342 | ctx->D[i] = key->tail.h3; | |
343 | PUTU32(blocks[i].c + 16, ctx->E[i]); | |
344 | ctx->E[i] = key->tail.h4; | |
345 | blocks[i].c[20] = 0x80; | |
346 | PUTU32(blocks[i].c + 60, (64 + 20) * 8); | |
5158c763 | 347 | # endif |
0f113f3e MC |
348 | edges[i].ptr = blocks[i].c; |
349 | edges[i].blocks = 1; | |
350 | } | |
351 | ||
352 | /* finalize MACs */ | |
353 | sha1_multi_block(ctx, edges, n4x); | |
354 | ||
355 | for (i = 0; i < x4; i++) { | |
356 | unsigned int len = (i == (x4 - 1) ? last : frag), pad, j; | |
357 | unsigned char *out0 = out; | |
358 | ||
359 | memcpy(ciph_d[i].out, ciph_d[i].inp, len - processed); | |
360 | ciph_d[i].inp = ciph_d[i].out; | |
361 | ||
362 | out += 5 + 16 + len; | |
363 | ||
364 | /* write MAC */ | |
365 | PUTU32(out + 0, ctx->A[i]); | |
366 | PUTU32(out + 4, ctx->B[i]); | |
367 | PUTU32(out + 8, ctx->C[i]); | |
368 | PUTU32(out + 12, ctx->D[i]); | |
369 | PUTU32(out + 16, ctx->E[i]); | |
370 | out += 20; | |
371 | len += 20; | |
372 | ||
373 | /* pad */ | |
374 | pad = 15 - len % 16; | |
375 | for (j = 0; j <= pad; j++) | |
376 | *(out++) = pad; | |
377 | len += pad + 1; | |
378 | ||
379 | ciph_d[i].blocks = (len - processed) / 16; | |
380 | len += 16; /* account for explicit iv */ | |
381 | ||
382 | /* arrange header */ | |
383 | out0[0] = ((u8 *)key->md.data)[8]; | |
384 | out0[1] = ((u8 *)key->md.data)[9]; | |
385 | out0[2] = ((u8 *)key->md.data)[10]; | |
386 | out0[3] = (u8)(len >> 8); | |
387 | out0[4] = (u8)(len); | |
388 | ||
389 | ret += len + 5; | |
390 | inp += frag; | |
391 | } | |
392 | ||
393 | aesni_multi_cbc_encrypt(ciph_d, &key->ks, n4x); | |
394 | ||
395 | OPENSSL_cleanse(blocks, sizeof(blocks)); | |
396 | OPENSSL_cleanse(ctx, sizeof(*ctx)); | |
397 | ||
398 | return ret; | |
7f893258 | 399 | } |
5158c763 | 400 | # endif |
7f893258 | 401 | |
c608171d | 402 | static int aesni_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
0f113f3e MC |
403 | const unsigned char *in, size_t len) |
404 | { | |
405 | EVP_AES_HMAC_SHA1 *key = data(ctx); | |
406 | unsigned int l; | |
407 | size_t plen = key->payload_length, iv = 0, /* explicit IV in TLS 1.1 and | |
408 | * later */ | |
409 | sha_off = 0; | |
5158c763 | 410 | # if defined(STITCHED_CALL) |
0f113f3e MC |
411 | size_t aes_off = 0, blocks; |
412 | ||
413 | sha_off = SHA_CBLOCK - key->md.num; | |
5158c763 | 414 | # endif |
0f113f3e MC |
415 | |
416 | key->payload_length = NO_PAYLOAD_LENGTH; | |
417 | ||
418 | if (len % AES_BLOCK_SIZE) | |
419 | return 0; | |
420 | ||
936166af | 421 | if (EVP_CIPHER_CTX_encrypting(ctx)) { |
0f113f3e MC |
422 | if (plen == NO_PAYLOAD_LENGTH) |
423 | plen = len; | |
424 | else if (len != | |
425 | ((plen + SHA_DIGEST_LENGTH + | |
426 | AES_BLOCK_SIZE) & -AES_BLOCK_SIZE)) | |
427 | return 0; | |
428 | else if (key->aux.tls_ver >= TLS1_1_VERSION) | |
429 | iv = AES_BLOCK_SIZE; | |
430 | ||
5158c763 | 431 | # if defined(STITCHED_CALL) |
0f113f3e MC |
432 | if (plen > (sha_off + iv) |
433 | && (blocks = (plen - (sha_off + iv)) / SHA_CBLOCK)) { | |
434 | SHA1_Update(&key->md, in + iv, sha_off); | |
435 | ||
436 | aesni_cbc_sha1_enc(in, out, blocks, &key->ks, | |
936166af RL |
437 | EVP_CIPHER_CTX_iv_noconst(ctx), |
438 | &key->md, in + iv + sha_off); | |
0f113f3e MC |
439 | blocks *= SHA_CBLOCK; |
440 | aes_off += blocks; | |
441 | sha_off += blocks; | |
442 | key->md.Nh += blocks >> 29; | |
443 | key->md.Nl += blocks <<= 3; | |
444 | if (key->md.Nl < (unsigned int)blocks) | |
445 | key->md.Nh++; | |
446 | } else { | |
447 | sha_off = 0; | |
448 | } | |
5158c763 | 449 | # endif |
0f113f3e MC |
450 | sha_off += iv; |
451 | SHA1_Update(&key->md, in + sha_off, plen - sha_off); | |
452 | ||
453 | if (plen != len) { /* "TLS" mode of operation */ | |
454 | if (in != out) | |
455 | memcpy(out + aes_off, in + aes_off, plen - aes_off); | |
456 | ||
457 | /* calculate HMAC and append it to payload */ | |
458 | SHA1_Final(out + plen, &key->md); | |
459 | key->md = key->tail; | |
460 | SHA1_Update(&key->md, out + plen, SHA_DIGEST_LENGTH); | |
461 | SHA1_Final(out + plen, &key->md); | |
462 | ||
463 | /* pad the payload|hmac */ | |
464 | plen += SHA_DIGEST_LENGTH; | |
465 | for (l = len - plen - 1; plen < len; plen++) | |
466 | out[plen] = l; | |
467 | /* encrypt HMAC|padding at once */ | |
468 | aesni_cbc_encrypt(out + aes_off, out + aes_off, len - aes_off, | |
936166af | 469 | &key->ks, EVP_CIPHER_CTX_iv_noconst(ctx), 1); |
0f113f3e MC |
470 | } else { |
471 | aesni_cbc_encrypt(in + aes_off, out + aes_off, len - aes_off, | |
936166af | 472 | &key->ks, EVP_CIPHER_CTX_iv_noconst(ctx), 1); |
0f113f3e MC |
473 | } |
474 | } else { | |
475 | union { | |
476 | unsigned int u[SHA_DIGEST_LENGTH / sizeof(unsigned int)]; | |
477 | unsigned char c[32 + SHA_DIGEST_LENGTH]; | |
478 | } mac, *pmac; | |
479 | ||
480 | /* arrange cache line alignment */ | |
481 | pmac = (void *)(((size_t)mac.c + 31) & ((size_t)0 - 32)); | |
482 | ||
483 | if (plen != NO_PAYLOAD_LENGTH) { /* "TLS" mode of operation */ | |
484 | size_t inp_len, mask, j, i; | |
485 | unsigned int res, maxpad, pad, bitlen; | |
486 | int ret = 1; | |
487 | union { | |
488 | unsigned int u[SHA_LBLOCK]; | |
489 | unsigned char c[SHA_CBLOCK]; | |
490 | } *data = (void *)key->md.data; | |
5158c763 | 491 | # if defined(STITCHED_DECRYPT_CALL) |
0f113f3e MC |
492 | unsigned char tail_iv[AES_BLOCK_SIZE]; |
493 | int stitch = 0; | |
5158c763 | 494 | # endif |
0f113f3e MC |
495 | |
496 | if ((key->aux.tls_aad[plen - 4] << 8 | key->aux.tls_aad[plen - 3]) | |
497 | >= TLS1_1_VERSION) { | |
498 | if (len < (AES_BLOCK_SIZE + SHA_DIGEST_LENGTH + 1)) | |
499 | return 0; | |
500 | ||
501 | /* omit explicit iv */ | |
936166af RL |
502 | memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), in, AES_BLOCK_SIZE); |
503 | ||
0f113f3e MC |
504 | in += AES_BLOCK_SIZE; |
505 | out += AES_BLOCK_SIZE; | |
506 | len -= AES_BLOCK_SIZE; | |
507 | } else if (len < (SHA_DIGEST_LENGTH + 1)) | |
508 | return 0; | |
509 | ||
5158c763 | 510 | # if defined(STITCHED_DECRYPT_CALL) |
0f113f3e MC |
511 | if (len >= 1024 && ctx->key_len == 32) { |
512 | /* decrypt last block */ | |
513 | memcpy(tail_iv, in + len - 2 * AES_BLOCK_SIZE, | |
514 | AES_BLOCK_SIZE); | |
515 | aesni_cbc_encrypt(in + len - AES_BLOCK_SIZE, | |
516 | out + len - AES_BLOCK_SIZE, AES_BLOCK_SIZE, | |
517 | &key->ks, tail_iv, 0); | |
518 | stitch = 1; | |
519 | } else | |
5158c763 | 520 | # endif |
0f113f3e | 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 | /* figure out payload length */ | |
526 | pad = out[len - 1]; | |
527 | maxpad = len - (SHA_DIGEST_LENGTH + 1); | |
528 | maxpad |= (255 - maxpad) >> (sizeof(maxpad) * 8 - 8); | |
529 | maxpad &= 255; | |
530 | ||
335d0a46 MC |
531 | mask = constant_time_ge(maxpad, pad); |
532 | ret &= mask; | |
533 | /* | |
534 | * If pad is invalid then we will fail the above test but we must | |
535 | * continue anyway because we are in constant time code. However, | |
536 | * we'll use the maxpad value instead of the supplied pad to make | |
537 | * sure we perform well defined pointer arithmetic. | |
538 | */ | |
539 | pad = constant_time_select(mask, pad, maxpad); | |
70428ead | 540 | |
0f113f3e | 541 | inp_len = len - (SHA_DIGEST_LENGTH + pad + 1); |
0f113f3e MC |
542 | |
543 | key->aux.tls_aad[plen - 2] = inp_len >> 8; | |
544 | key->aux.tls_aad[plen - 1] = inp_len; | |
545 | ||
546 | /* calculate HMAC */ | |
547 | key->md = key->head; | |
548 | SHA1_Update(&key->md, key->aux.tls_aad, plen); | |
549 | ||
5158c763 | 550 | # if defined(STITCHED_DECRYPT_CALL) |
0f113f3e MC |
551 | if (stitch) { |
552 | blocks = (len - (256 + 32 + SHA_CBLOCK)) / SHA_CBLOCK; | |
553 | aes_off = len - AES_BLOCK_SIZE - blocks * SHA_CBLOCK; | |
554 | sha_off = SHA_CBLOCK - plen; | |
555 | ||
556 | aesni_cbc_encrypt(in, out, aes_off, &key->ks, ctx->iv, 0); | |
557 | ||
558 | SHA1_Update(&key->md, out, sha_off); | |
559 | aesni256_cbc_sha1_dec(in + aes_off, | |
560 | out + aes_off, blocks, &key->ks, | |
561 | ctx->iv, &key->md, out + sha_off); | |
562 | ||
563 | sha_off += blocks *= SHA_CBLOCK; | |
564 | out += sha_off; | |
565 | len -= sha_off; | |
566 | inp_len -= sha_off; | |
567 | ||
568 | key->md.Nl += (blocks << 3); /* at most 18 bits */ | |
569 | memcpy(ctx->iv, tail_iv, AES_BLOCK_SIZE); | |
570 | } | |
5158c763 | 571 | # endif |
0f113f3e | 572 | |
5908555c | 573 | # if 1 /* see original reference version in #else */ |
0f113f3e MC |
574 | len -= SHA_DIGEST_LENGTH; /* amend mac */ |
575 | if (len >= (256 + SHA_CBLOCK)) { | |
576 | j = (len - (256 + SHA_CBLOCK)) & (0 - SHA_CBLOCK); | |
577 | j += SHA_CBLOCK - key->md.num; | |
578 | SHA1_Update(&key->md, out, j); | |
579 | out += j; | |
580 | len -= j; | |
581 | inp_len -= j; | |
582 | } | |
583 | ||
584 | /* but pretend as if we hashed padded payload */ | |
585 | bitlen = key->md.Nl + (inp_len << 3); /* at most 18 bits */ | |
5158c763 | 586 | # ifdef BSWAP4 |
0f113f3e | 587 | bitlen = BSWAP4(bitlen); |
5158c763 | 588 | # else |
0f113f3e MC |
589 | mac.c[0] = 0; |
590 | mac.c[1] = (unsigned char)(bitlen >> 16); | |
591 | mac.c[2] = (unsigned char)(bitlen >> 8); | |
592 | mac.c[3] = (unsigned char)bitlen; | |
593 | bitlen = mac.u[0]; | |
5158c763 | 594 | # endif |
0f113f3e MC |
595 | |
596 | pmac->u[0] = 0; | |
597 | pmac->u[1] = 0; | |
598 | pmac->u[2] = 0; | |
599 | pmac->u[3] = 0; | |
600 | pmac->u[4] = 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 != SHA_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 | sha1_block_data_order(&key->md, data, 1); | |
616 | mask &= 0 - ((j - inp_len - 72) >> (sizeof(j) * 8 - 1)); | |
617 | pmac->u[0] |= key->md.h0 & mask; | |
618 | pmac->u[1] |= key->md.h1 & mask; | |
619 | pmac->u[2] |= key->md.h2 & mask; | |
620 | pmac->u[3] |= key->md.h3 & mask; | |
621 | pmac->u[4] |= key->md.h4 & mask; | |
622 | res = 0; | |
623 | } | |
624 | ||
625 | for (i = res; i < SHA_CBLOCK; i++, j++) | |
626 | data->c[i] = 0; | |
627 | ||
628 | if (res > SHA_CBLOCK - 8) { | |
629 | mask = 0 - ((inp_len + 8 - j) >> (sizeof(j) * 8 - 1)); | |
630 | data->u[SHA_LBLOCK - 1] |= bitlen & mask; | |
631 | sha1_block_data_order(&key->md, data, 1); | |
632 | mask &= 0 - ((j - inp_len - 73) >> (sizeof(j) * 8 - 1)); | |
633 | pmac->u[0] |= key->md.h0 & mask; | |
634 | pmac->u[1] |= key->md.h1 & mask; | |
635 | pmac->u[2] |= key->md.h2 & mask; | |
636 | pmac->u[3] |= key->md.h3 & mask; | |
637 | pmac->u[4] |= key->md.h4 & mask; | |
638 | ||
639 | memset(data, 0, SHA_CBLOCK); | |
640 | j += 64; | |
641 | } | |
642 | data->u[SHA_LBLOCK - 1] = bitlen; | |
643 | sha1_block_data_order(&key->md, data, 1); | |
644 | mask = 0 - ((j - inp_len - 73) >> (sizeof(j) * 8 - 1)); | |
645 | pmac->u[0] |= key->md.h0 & mask; | |
646 | pmac->u[1] |= key->md.h1 & mask; | |
647 | pmac->u[2] |= key->md.h2 & mask; | |
648 | pmac->u[3] |= key->md.h3 & mask; | |
649 | pmac->u[4] |= key->md.h4 & mask; | |
650 | ||
5158c763 | 651 | # ifdef BSWAP4 |
0f113f3e MC |
652 | pmac->u[0] = BSWAP4(pmac->u[0]); |
653 | pmac->u[1] = BSWAP4(pmac->u[1]); | |
654 | pmac->u[2] = BSWAP4(pmac->u[2]); | |
655 | pmac->u[3] = BSWAP4(pmac->u[3]); | |
656 | pmac->u[4] = BSWAP4(pmac->u[4]); | |
5158c763 | 657 | # else |
0f113f3e MC |
658 | for (i = 0; i < 5; i++) { |
659 | res = pmac->u[i]; | |
660 | pmac->c[4 * i + 0] = (unsigned char)(res >> 24); | |
661 | pmac->c[4 * i + 1] = (unsigned char)(res >> 16); | |
662 | pmac->c[4 * i + 2] = (unsigned char)(res >> 8); | |
663 | pmac->c[4 * i + 3] = (unsigned char)res; | |
664 | } | |
5158c763 | 665 | # endif |
0f113f3e | 666 | len += SHA_DIGEST_LENGTH; |
5908555c | 667 | # else /* pre-lucky-13 reference version of above */ |
0f113f3e MC |
668 | SHA1_Update(&key->md, out, inp_len); |
669 | res = key->md.num; | |
670 | SHA1_Final(pmac->c, &key->md); | |
671 | ||
672 | { | |
673 | unsigned int inp_blocks, pad_blocks; | |
674 | ||
675 | /* but pretend as if we hashed padded payload */ | |
676 | inp_blocks = | |
677 | 1 + ((SHA_CBLOCK - 9 - res) >> (sizeof(res) * 8 - 1)); | |
678 | res += (unsigned int)(len - inp_len); | |
679 | pad_blocks = res / SHA_CBLOCK; | |
680 | res %= SHA_CBLOCK; | |
681 | pad_blocks += | |
682 | 1 + ((SHA_CBLOCK - 9 - res) >> (sizeof(res) * 8 - 1)); | |
683 | for (; inp_blocks < pad_blocks; inp_blocks++) | |
684 | sha1_block_data_order(&key->md, data, 1); | |
685 | } | |
5158c763 | 686 | # endif |
0f113f3e MC |
687 | key->md = key->tail; |
688 | SHA1_Update(&key->md, pmac->c, SHA_DIGEST_LENGTH); | |
689 | SHA1_Final(pmac->c, &key->md); | |
690 | ||
691 | /* verify HMAC */ | |
692 | out += inp_len; | |
693 | len -= inp_len; | |
5908555c | 694 | # if 1 /* see original reference version in #else */ |
0f113f3e MC |
695 | { |
696 | unsigned char *p = out + len - 1 - maxpad - SHA_DIGEST_LENGTH; | |
697 | size_t off = out - p; | |
698 | unsigned int c, cmask; | |
699 | ||
700 | maxpad += SHA_DIGEST_LENGTH; | |
701 | for (res = 0, i = 0, j = 0; j < maxpad; j++) { | |
702 | c = p[j]; | |
703 | cmask = | |
704 | ((int)(j - off - SHA_DIGEST_LENGTH)) >> (sizeof(int) * | |
705 | 8 - 1); | |
706 | res |= (c ^ pad) & ~cmask; /* ... and padding */ | |
707 | cmask &= ((int)(off - 1 - j)) >> (sizeof(int) * 8 - 1); | |
708 | res |= (c ^ pmac->c[i]) & cmask; | |
709 | i += 1 & cmask; | |
710 | } | |
711 | maxpad -= SHA_DIGEST_LENGTH; | |
712 | ||
713 | res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1)); | |
714 | ret &= (int)~res; | |
715 | } | |
5908555c | 716 | # else /* pre-lucky-13 reference version of above */ |
0f113f3e MC |
717 | for (res = 0, i = 0; i < SHA_DIGEST_LENGTH; i++) |
718 | res |= out[i] ^ pmac->c[i]; | |
719 | res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1)); | |
720 | ret &= (int)~res; | |
721 | ||
722 | /* verify padding */ | |
723 | pad = (pad & ~res) | (maxpad & res); | |
724 | out = out + len - 1 - pad; | |
725 | for (res = 0, i = 0; i < pad; i++) | |
726 | res |= out[i] ^ pad; | |
727 | ||
728 | res = (0 - res) >> (sizeof(res) * 8 - 1); | |
729 | ret &= (int)~res; | |
5158c763 | 730 | # endif |
0f113f3e MC |
731 | return ret; |
732 | } else { | |
5158c763 | 733 | # if defined(STITCHED_DECRYPT_CALL) |
0f113f3e MC |
734 | if (len >= 1024 && ctx->key_len == 32) { |
735 | if (sha_off %= SHA_CBLOCK) | |
736 | blocks = (len - 3 * SHA_CBLOCK) / SHA_CBLOCK; | |
737 | else | |
738 | blocks = (len - 2 * SHA_CBLOCK) / SHA_CBLOCK; | |
739 | aes_off = len - blocks * SHA_CBLOCK; | |
740 | ||
741 | aesni_cbc_encrypt(in, out, aes_off, &key->ks, ctx->iv, 0); | |
742 | SHA1_Update(&key->md, out, sha_off); | |
743 | aesni256_cbc_sha1_dec(in + aes_off, | |
744 | out + aes_off, blocks, &key->ks, | |
745 | ctx->iv, &key->md, out + sha_off); | |
746 | ||
747 | sha_off += blocks *= SHA_CBLOCK; | |
748 | out += sha_off; | |
749 | len -= sha_off; | |
750 | ||
751 | key->md.Nh += blocks >> 29; | |
752 | key->md.Nl += blocks <<= 3; | |
753 | if (key->md.Nl < (unsigned int)blocks) | |
754 | key->md.Nh++; | |
755 | } else | |
5158c763 | 756 | # endif |
0f113f3e | 757 | /* decrypt HMAC|padding at once */ |
936166af RL |
758 | aesni_cbc_encrypt(in, out, len, &key->ks, |
759 | EVP_CIPHER_CTX_iv_noconst(ctx), 0); | |
0f113f3e MC |
760 | |
761 | SHA1_Update(&key->md, out, len); | |
762 | } | |
763 | } | |
764 | ||
765 | return 1; | |
766 | } | |
c608171d | 767 | |
0f113f3e MC |
768 | static int aesni_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, |
769 | void *ptr) | |
770 | { | |
771 | EVP_AES_HMAC_SHA1 *key = data(ctx); | |
772 | ||
773 | switch (type) { | |
774 | case EVP_CTRL_AEAD_SET_MAC_KEY: | |
775 | { | |
776 | unsigned int i; | |
777 | unsigned char hmac_key[64]; | |
778 | ||
779 | memset(hmac_key, 0, sizeof(hmac_key)); | |
780 | ||
781 | if (arg > (int)sizeof(hmac_key)) { | |
782 | SHA1_Init(&key->head); | |
783 | SHA1_Update(&key->head, ptr, arg); | |
784 | SHA1_Final(hmac_key, &key->head); | |
785 | } else { | |
786 | memcpy(hmac_key, ptr, arg); | |
787 | } | |
788 | ||
789 | for (i = 0; i < sizeof(hmac_key); i++) | |
790 | hmac_key[i] ^= 0x36; /* ipad */ | |
791 | SHA1_Init(&key->head); | |
792 | SHA1_Update(&key->head, hmac_key, sizeof(hmac_key)); | |
793 | ||
794 | for (i = 0; i < sizeof(hmac_key); i++) | |
795 | hmac_key[i] ^= 0x36 ^ 0x5c; /* opad */ | |
796 | SHA1_Init(&key->tail); | |
797 | SHA1_Update(&key->tail, hmac_key, sizeof(hmac_key)); | |
798 | ||
799 | OPENSSL_cleanse(hmac_key, sizeof(hmac_key)); | |
800 | ||
801 | return 1; | |
802 | } | |
803 | case EVP_CTRL_AEAD_TLS1_AAD: | |
804 | { | |
805 | unsigned char *p = ptr; | |
c8269881 MC |
806 | unsigned int len; |
807 | ||
808 | if (arg != EVP_AEAD_TLS1_AAD_LEN) | |
809 | return -1; | |
02e112a8 | 810 | |
c8269881 | 811 | len = p[arg - 2] << 8 | p[arg - 1]; |
0f113f3e | 812 | |
936166af | 813 | if (EVP_CIPHER_CTX_encrypting(ctx)) { |
0f113f3e MC |
814 | key->payload_length = len; |
815 | if ((key->aux.tls_ver = | |
816 | p[arg - 4] << 8 | p[arg - 3]) >= TLS1_1_VERSION) { | |
a68d3505 RS |
817 | if (len < AES_BLOCK_SIZE) |
818 | return 0; | |
0f113f3e MC |
819 | len -= AES_BLOCK_SIZE; |
820 | p[arg - 2] = len >> 8; | |
821 | p[arg - 1] = len; | |
822 | } | |
823 | key->md = key->head; | |
824 | SHA1_Update(&key->md, p, arg); | |
825 | ||
826 | return (int)(((len + SHA_DIGEST_LENGTH + | |
827 | AES_BLOCK_SIZE) & -AES_BLOCK_SIZE) | |
828 | - len); | |
829 | } else { | |
0f113f3e MC |
830 | memcpy(key->aux.tls_aad, ptr, arg); |
831 | key->payload_length = arg; | |
832 | ||
833 | return SHA_DIGEST_LENGTH; | |
834 | } | |
835 | } | |
9d6fcd42 | 836 | # if !defined(OPENSSL_NO_MULTIBLOCK) |
0f113f3e MC |
837 | case EVP_CTRL_TLS1_1_MULTIBLOCK_MAX_BUFSIZE: |
838 | return (int)(5 + 16 + ((arg + 20 + 16) & -16)); | |
839 | case EVP_CTRL_TLS1_1_MULTIBLOCK_AAD: | |
840 | { | |
841 | EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *param = | |
842 | (EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *) ptr; | |
843 | unsigned int n4x = 1, x4; | |
844 | unsigned int frag, last, packlen, inp_len; | |
845 | ||
846 | if (arg < (int)sizeof(EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM)) | |
847 | return -1; | |
848 | ||
849 | inp_len = param->inp[11] << 8 | param->inp[12]; | |
850 | ||
936166af | 851 | if (EVP_CIPHER_CTX_encrypting(ctx)) { |
0f113f3e MC |
852 | if ((param->inp[9] << 8 | param->inp[10]) < TLS1_1_VERSION) |
853 | return -1; | |
854 | ||
855 | if (inp_len) { | |
856 | if (inp_len < 4096) | |
857 | return 0; /* too short */ | |
858 | ||
859 | if (inp_len >= 8192 && OPENSSL_ia32cap_P[2] & (1 << 5)) | |
860 | n4x = 2; /* AVX2 */ | |
861 | } else if ((n4x = param->interleave / 4) && n4x <= 2) | |
862 | inp_len = param->len; | |
863 | else | |
864 | return -1; | |
865 | ||
866 | key->md = key->head; | |
867 | SHA1_Update(&key->md, param->inp, 13); | |
868 | ||
869 | x4 = 4 * n4x; | |
870 | n4x += 1; | |
871 | ||
872 | frag = inp_len >> n4x; | |
873 | last = inp_len + frag - (frag << n4x); | |
874 | if (last > frag && ((last + 13 + 9) % 64 < (x4 - 1))) { | |
875 | frag++; | |
876 | last -= x4 - 1; | |
877 | } | |
878 | ||
879 | packlen = 5 + 16 + ((frag + 20 + 16) & -16); | |
880 | packlen = (packlen << n4x) - packlen; | |
881 | packlen += 5 + 16 + ((last + 20 + 16) & -16); | |
882 | ||
883 | param->interleave = x4; | |
884 | ||
885 | return (int)packlen; | |
886 | } else | |
887 | return -1; /* not yet */ | |
888 | } | |
889 | case EVP_CTRL_TLS1_1_MULTIBLOCK_ENCRYPT: | |
890 | { | |
891 | EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *param = | |
892 | (EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *) ptr; | |
893 | ||
894 | return (int)tls1_1_multi_block_encrypt(key, param->out, | |
895 | param->inp, param->len, | |
16cfc2c9 | 896 | param->interleave / 4); |
0f113f3e MC |
897 | } |
898 | case EVP_CTRL_TLS1_1_MULTIBLOCK_DECRYPT: | |
5158c763 | 899 | # endif |
0f113f3e MC |
900 | default: |
901 | return -1; | |
902 | } | |
903 | } | |
2f3af3dc | 904 | |
0f113f3e | 905 | static EVP_CIPHER aesni_128_cbc_hmac_sha1_cipher = { |
5158c763 | 906 | # ifdef NID_aes_128_cbc_hmac_sha1 |
0f113f3e | 907 | NID_aes_128_cbc_hmac_sha1, |
5158c763 | 908 | # else |
0f113f3e | 909 | NID_undef, |
5158c763 | 910 | # endif |
936166af | 911 | AES_BLOCK_SIZE, 16, AES_BLOCK_SIZE, |
0f113f3e MC |
912 | EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 | |
913 | EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK, | |
914 | aesni_cbc_hmac_sha1_init_key, | |
915 | aesni_cbc_hmac_sha1_cipher, | |
916 | NULL, | |
917 | sizeof(EVP_AES_HMAC_SHA1), | |
918 | EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_set_asn1_iv, | |
919 | EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_get_asn1_iv, | |
920 | aesni_cbc_hmac_sha1_ctrl, | |
921 | NULL | |
922 | }; | |
923 | ||
924 | static EVP_CIPHER aesni_256_cbc_hmac_sha1_cipher = { | |
5158c763 | 925 | # ifdef NID_aes_256_cbc_hmac_sha1 |
0f113f3e | 926 | NID_aes_256_cbc_hmac_sha1, |
5158c763 | 927 | # else |
0f113f3e | 928 | NID_undef, |
5158c763 | 929 | # endif |
936166af | 930 | AES_BLOCK_SIZE, 32, AES_BLOCK_SIZE, |
0f113f3e MC |
931 | EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 | |
932 | EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK, | |
933 | aesni_cbc_hmac_sha1_init_key, | |
934 | aesni_cbc_hmac_sha1_cipher, | |
935 | NULL, | |
936 | sizeof(EVP_AES_HMAC_SHA1), | |
937 | EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_set_asn1_iv, | |
938 | EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_get_asn1_iv, | |
939 | aesni_cbc_hmac_sha1_ctrl, | |
940 | NULL | |
941 | }; | |
c608171d AP |
942 | |
943 | const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void) | |
0f113f3e MC |
944 | { |
945 | return (OPENSSL_ia32cap_P[1] & AESNI_CAPABLE ? | |
946 | &aesni_128_cbc_hmac_sha1_cipher : NULL); | |
947 | } | |
c608171d AP |
948 | |
949 | const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha1(void) | |
0f113f3e MC |
950 | { |
951 | return (OPENSSL_ia32cap_P[1] & AESNI_CAPABLE ? | |
952 | &aesni_256_cbc_hmac_sha1_cipher : NULL); | |
953 | } | |
5158c763 | 954 | #else |
c608171d | 955 | const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void) |
0f113f3e MC |
956 | { |
957 | return NULL; | |
958 | } | |
959 | ||
c608171d | 960 | const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha1(void) |
0f113f3e MC |
961 | { |
962 | return NULL; | |
963 | } | |
c608171d | 964 | #endif |