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1 files changed, 0 insertions, 601 deletions
diff --git a/src/lib/libcrypto/evp/e_aes_cbc_hmac_sha1.c b/src/lib/libcrypto/evp/e_aes_cbc_hmac_sha1.c
deleted file mode 100644
index 7c23face34..0000000000
--- a/src/lib/libcrypto/evp/e_aes_cbc_hmac_sha1.c
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@@ -1,601 +0,0 @@
1/* $OpenBSD: e_aes_cbc_hmac_sha1.c,v 1.8 2014/07/12 20:37:07 miod Exp $ */
2/* ====================================================================
3 * Copyright (c) 2011-2013 The OpenSSL Project. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in
14 * the documentation and/or other materials provided with the
15 * distribution.
16 *
17 * 3. All advertising materials mentioning features or use of this
18 * software must display the following acknowledgment:
19 * "This product includes software developed by the OpenSSL Project
20 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
21 *
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
23 * endorse or promote products derived from this software without
24 * prior written permission. For written permission, please contact
25 * licensing@OpenSSL.org.
26 *
27 * 5. Products derived from this software may not be called "OpenSSL"
28 * nor may "OpenSSL" appear in their names without prior written
29 * permission of the OpenSSL Project.
30 *
31 * 6. Redistributions of any form whatsoever must retain the following
32 * acknowledgment:
33 * "This product includes software developed by the OpenSSL Project
34 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
35 *
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
47 * OF THE POSSIBILITY OF SUCH DAMAGE.
48 * ====================================================================
49 */
50
51#include <stdio.h>
52#include <string.h>
53
54#include <openssl/opensslconf.h>
55
56#if !defined(OPENSSL_NO_AES) && !defined(OPENSSL_NO_SHA1)
57
58#include <openssl/evp.h>
59#include <openssl/objects.h>
60#include <openssl/aes.h>
61#include <openssl/sha.h>
62#include "evp_locl.h"
63
64#ifndef EVP_CIPH_FLAG_AEAD_CIPHER
65#define EVP_CIPH_FLAG_AEAD_CIPHER 0x200000
66#define EVP_CTRL_AEAD_TLS1_AAD 0x16
67#define EVP_CTRL_AEAD_SET_MAC_KEY 0x17
68#endif
69
70#define TLS1_1_VERSION 0x0302
71
72typedef struct {
73 AES_KEY ks;
74 SHA_CTX head, tail, md;
75 size_t payload_length; /* AAD length in decrypt case */
76 union {
77 unsigned int tls_ver;
78 unsigned char tls_aad[16]; /* 13 used */
79 } aux;
80} EVP_AES_HMAC_SHA1;
81
82#define NO_PAYLOAD_LENGTH ((size_t)-1)
83
84#if defined(AES_ASM) && ( \
85 defined(__x86_64) || defined(__x86_64__) || \
86 defined(_M_AMD64) || defined(_M_X64) || \
87 defined(__INTEL__) )
88
89#if defined(__GNUC__) && __GNUC__>=2
90# define BSWAP(x) ({ unsigned int r=(x); asm ("bswapl %0":"=r"(r):"0"(r)); r; })
91#endif
92
93extern unsigned int OPENSSL_ia32cap_P[2];
94#define AESNI_CAPABLE (1<<(57-32))
95
96int aesni_set_encrypt_key(const unsigned char *userKey, int bits, AES_KEY *key);
97int aesni_set_decrypt_key(const unsigned char *userKey, int bits, AES_KEY *key);
98
99void aesni_cbc_encrypt(const unsigned char *in, unsigned char *out,
100 size_t length, const AES_KEY *key, unsigned char *ivec, int enc);
101
102void aesni_cbc_sha1_enc (const void *inp, void *out, size_t blocks,
103 const AES_KEY *key, unsigned char iv[16], SHA_CTX *ctx, const void *in0);
104
105#define data(ctx) ((EVP_AES_HMAC_SHA1 *)(ctx)->cipher_data)
106
107static int
108aesni_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *inkey,
109 const unsigned char *iv, int enc)
110{
111 EVP_AES_HMAC_SHA1 *key = data(ctx);
112 int ret;
113
114 if (enc)
115 ret = aesni_set_encrypt_key(inkey, ctx->key_len * 8, &key->ks);
116 else
117 ret = aesni_set_decrypt_key(inkey, ctx->key_len * 8, &key->ks);
118
119 SHA1_Init(&key->head); /* handy when benchmarking */
120 key->tail = key->head;
121 key->md = key->head;
122
123 key->payload_length = NO_PAYLOAD_LENGTH;
124
125 return ret < 0 ? 0 : 1;
126}
127
128#define STITCHED_CALL
129
130#if !defined(STITCHED_CALL)
131#define aes_off 0
132#endif
133
134void sha1_block_data_order (void *c, const void *p, size_t len);
135
136static void
137sha1_update(SHA_CTX *c, const void *data, size_t len)
138{
139 const unsigned char *ptr = data;
140 size_t res;
141
142 if ((res = c->num)) {
143 res = SHA_CBLOCK - res;
144 if (len < res)
145 res = len;
146 SHA1_Update(c, ptr, res);
147 ptr += res;
148 len -= res;
149 }
150
151 res = len % SHA_CBLOCK;
152 len -= res;
153
154 if (len) {
155 sha1_block_data_order(c, ptr, len / SHA_CBLOCK);
156
157 ptr += len;
158 c->Nh += len >> 29;
159 c->Nl += len <<= 3;
160 if (c->Nl < (unsigned int)len)
161 c->Nh++;
162 }
163
164 if (res)
165 SHA1_Update(c, ptr, res);
166}
167
168#ifdef SHA1_Update
169#undef SHA1_Update
170#endif
171#define SHA1_Update sha1_update
172
173static int
174aesni_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
175 const unsigned char *in, size_t len)
176{
177 EVP_AES_HMAC_SHA1 *key = data(ctx);
178 unsigned int l;
179 size_t plen = key->payload_length,
180 iv = 0, /* explicit IV in TLS 1.1 and later */
181 sha_off = 0;
182#if defined(STITCHED_CALL)
183 size_t aes_off = 0, blocks;
184
185 sha_off = SHA_CBLOCK - key->md.num;
186#endif
187
188 key->payload_length = NO_PAYLOAD_LENGTH;
189
190 if (len % AES_BLOCK_SIZE)
191 return 0;
192
193 if (ctx->encrypt) {
194 if (plen == NO_PAYLOAD_LENGTH)
195 plen = len;
196 else if (len != ((plen + SHA_DIGEST_LENGTH + AES_BLOCK_SIZE) &
197 -AES_BLOCK_SIZE))
198 return 0;
199 else if (key->aux.tls_ver >= TLS1_1_VERSION)
200 iv = AES_BLOCK_SIZE;
201
202#if defined(STITCHED_CALL)
203 if (plen > (sha_off + iv) &&
204 (blocks = (plen - (sha_off + iv)) / SHA_CBLOCK)) {
205 SHA1_Update(&key->md, in + iv, sha_off);
206
207 aesni_cbc_sha1_enc(in, out, blocks, &key->ks,
208 ctx->iv, &key->md, in + iv + sha_off);
209 blocks *= SHA_CBLOCK;
210 aes_off += blocks;
211 sha_off += blocks;
212 key->md.Nh += blocks >> 29;
213 key->md.Nl += blocks <<= 3;
214 if (key->md.Nl < (unsigned int)blocks)
215 key->md.Nh++;
216 } else {
217 sha_off = 0;
218 }
219#endif
220 sha_off += iv;
221 SHA1_Update(&key->md, in + sha_off, plen - sha_off);
222
223 if (plen != len) { /* "TLS" mode of operation */
224 if (in != out)
225 memcpy(out + aes_off, in + aes_off,
226 plen - aes_off);
227
228 /* calculate HMAC and append it to payload */
229 SHA1_Final(out + plen, &key->md);
230 key->md = key->tail;
231 SHA1_Update(&key->md, out + plen, SHA_DIGEST_LENGTH);
232 SHA1_Final(out + plen, &key->md);
233
234 /* pad the payload|hmac */
235 plen += SHA_DIGEST_LENGTH;
236 for (l = len - plen - 1; plen < len; plen++)
237 out[plen] = l;
238
239 /* encrypt HMAC|padding at once */
240 aesni_cbc_encrypt(out + aes_off, out + aes_off,
241 len - aes_off, &key->ks, ctx->iv, 1);
242 } else {
243 aesni_cbc_encrypt(in + aes_off, out + aes_off,
244 len - aes_off, &key->ks, ctx->iv, 1);
245 }
246 } else {
247 union {
248 unsigned int u[SHA_DIGEST_LENGTH/sizeof(unsigned int)];
249 unsigned char c[32 + SHA_DIGEST_LENGTH];
250 } mac, *pmac;
251
252 /* arrange cache line alignment */
253 pmac = (void *)(((size_t)mac.c + 31) & ((size_t)0 - 32));
254
255 /* decrypt HMAC|padding at once */
256 aesni_cbc_encrypt(in, out, len, &key->ks, ctx->iv, 0);
257
258 if (plen) { /* "TLS" mode of operation */
259 size_t inp_len, mask, j, i;
260 unsigned int res, maxpad, pad, bitlen;
261 int ret = 1;
262 union {
263 unsigned int u[SHA_LBLOCK];
264 unsigned char c[SHA_CBLOCK];
265 }
266 *data = (void *)key->md.data;
267
268 if ((key->aux.tls_aad[plen - 4] << 8 |
269 key->aux.tls_aad[plen - 3]) >= TLS1_1_VERSION)
270 iv = AES_BLOCK_SIZE;
271
272 if (len < (iv + SHA_DIGEST_LENGTH + 1))
273 return 0;
274
275 /* omit explicit iv */
276 out += iv;
277 len -= iv;
278
279 /* figure out payload length */
280 pad = out[len - 1];
281 maxpad = len - (SHA_DIGEST_LENGTH + 1);
282 maxpad |= (255 - maxpad) >> (sizeof(maxpad) * 8 - 8);
283 maxpad &= 255;
284
285 inp_len = len - (SHA_DIGEST_LENGTH + pad + 1);
286 mask = (0 - ((inp_len - len) >>
287 (sizeof(inp_len) * 8 - 1)));
288 inp_len &= mask;
289 ret &= (int)mask;
290
291 key->aux.tls_aad[plen - 2] = inp_len >> 8;
292 key->aux.tls_aad[plen - 1] = inp_len;
293
294 /* calculate HMAC */
295 key->md = key->head;
296 SHA1_Update(&key->md, key->aux.tls_aad, plen);
297
298#if 1
299 len -= SHA_DIGEST_LENGTH; /* amend mac */
300 if (len >= (256 + SHA_CBLOCK)) {
301 j = (len - (256 + SHA_CBLOCK)) &
302 (0 - SHA_CBLOCK);
303 j += SHA_CBLOCK - key->md.num;
304 SHA1_Update(&key->md, out, j);
305 out += j;
306 len -= j;
307 inp_len -= j;
308 }
309
310 /* but pretend as if we hashed padded payload */
311 bitlen = key->md.Nl + (inp_len << 3); /* at most 18 bits */
312#ifdef BSWAP
313 bitlen = BSWAP(bitlen);
314#else
315 mac.c[0] = 0;
316 mac.c[1] = (unsigned char)(bitlen >> 16);
317 mac.c[2] = (unsigned char)(bitlen >> 8);
318 mac.c[3] = (unsigned char)bitlen;
319 bitlen = mac.u[0];
320#endif
321
322 pmac->u[0] = 0;
323 pmac->u[1] = 0;
324 pmac->u[2] = 0;
325 pmac->u[3] = 0;
326 pmac->u[4] = 0;
327
328 for (res = key->md.num, j = 0; j < len; j++) {
329 size_t c = out[j];
330 mask = (j - inp_len) >> (sizeof(j) * 8 - 8);
331 c &= mask;
332 c |= 0x80 & ~mask &
333 ~((inp_len - j) >> (sizeof(j) * 8 - 8));
334 data->c[res++] = (unsigned char)c;
335
336 if (res != SHA_CBLOCK)
337 continue;
338
339 /* j is not incremented yet */
340 mask = 0 - ((inp_len + 7 - j) >>
341 (sizeof(j) * 8 - 1));
342 data->u[SHA_LBLOCK - 1] |= bitlen&mask;
343 sha1_block_data_order(&key->md, data, 1);
344 mask &= 0 - ((j - inp_len - 72) >>
345 (sizeof(j) * 8 - 1));
346 pmac->u[0] |= key->md.h0 & mask;
347 pmac->u[1] |= key->md.h1 & mask;
348 pmac->u[2] |= key->md.h2 & mask;
349 pmac->u[3] |= key->md.h3 & mask;
350 pmac->u[4] |= key->md.h4 & mask;
351 res = 0;
352 }
353
354 for (i = res; i < SHA_CBLOCK; i++, j++)
355 data->c[i] = 0;
356
357 if (res > SHA_CBLOCK - 8) {
358 mask = 0 - ((inp_len + 8 - j) >>
359 (sizeof(j) * 8 - 1));
360 data->u[SHA_LBLOCK - 1] |= bitlen & mask;
361 sha1_block_data_order(&key->md, data, 1);
362 mask &= 0 - ((j - inp_len - 73) >>
363 (sizeof(j) * 8 - 1));
364 pmac->u[0] |= key->md.h0 & mask;
365 pmac->u[1] |= key->md.h1 & mask;
366 pmac->u[2] |= key->md.h2 & mask;
367 pmac->u[3] |= key->md.h3 & mask;
368 pmac->u[4] |= key->md.h4 & mask;
369
370 memset(data, 0, SHA_CBLOCK);
371 j += 64;
372 }
373 data->u[SHA_LBLOCK - 1] = bitlen;
374 sha1_block_data_order(&key->md, data, 1);
375 mask = 0 - ((j - inp_len - 73) >> (sizeof(j) * 8 - 1));
376 pmac->u[0] |= key->md.h0 & mask;
377 pmac->u[1] |= key->md.h1 & mask;
378 pmac->u[2] |= key->md.h2 & mask;
379 pmac->u[3] |= key->md.h3 & mask;
380 pmac->u[4] |= key->md.h4 & mask;
381
382#ifdef BSWAP
383 pmac->u[0] = BSWAP(pmac->u[0]);
384 pmac->u[1] = BSWAP(pmac->u[1]);
385 pmac->u[2] = BSWAP(pmac->u[2]);
386 pmac->u[3] = BSWAP(pmac->u[3]);
387 pmac->u[4] = BSWAP(pmac->u[4]);
388#else
389 for (i = 0; i < 5; i++) {
390 res = pmac->u[i];
391 pmac->c[4 * i + 0] = (unsigned char)(res >> 24);
392 pmac->c[4 * i + 1] = (unsigned char)(res >> 16);
393 pmac->c[4 * i + 2] = (unsigned char)(res >> 8);
394 pmac->c[4 * i + 3] = (unsigned char)res;
395 }
396#endif
397 len += SHA_DIGEST_LENGTH;
398#else
399 SHA1_Update(&key->md, out, inp_len);
400 res = key->md.num;
401 SHA1_Final(pmac->c, &key->md);
402
403 {
404 unsigned int inp_blocks, pad_blocks;
405
406 /* but pretend as if we hashed padded payload */
407 inp_blocks = 1 + ((SHA_CBLOCK - 9 - res) >>
408 (sizeof(res) * 8 - 1));
409 res += (unsigned int)(len - inp_len);
410 pad_blocks = res / SHA_CBLOCK;
411 res %= SHA_CBLOCK;
412 pad_blocks += 1 + ((SHA_CBLOCK - 9 - res) >>
413 (sizeof(res) * 8 - 1));
414 for (; inp_blocks < pad_blocks; inp_blocks++)
415 sha1_block_data_order(&key->md,
416 data, 1);
417 }
418#endif
419 key->md = key->tail;
420 SHA1_Update(&key->md, pmac->c, SHA_DIGEST_LENGTH);
421 SHA1_Final(pmac->c, &key->md);
422
423 /* verify HMAC */
424 out += inp_len;
425 len -= inp_len;
426#if 1
427 {
428 unsigned char *p =
429 out + len - 1 - maxpad - SHA_DIGEST_LENGTH;
430 size_t off = out - p;
431 unsigned int c, cmask;
432
433 maxpad += SHA_DIGEST_LENGTH;
434 for (res = 0, i = 0, j = 0; j < maxpad; j++) {
435 c = p[j];
436 cmask = ((int)(j - off -
437 SHA_DIGEST_LENGTH)) >>
438 (sizeof(int) * 8 - 1);
439 res |= (c ^ pad) & ~cmask; /* ... and padding */
440 cmask &= ((int)(off - 1 - j)) >>
441 (sizeof(int) * 8 - 1);
442 res |= (c ^ pmac->c[i]) & cmask;
443 i += 1 & cmask;
444 }
445 maxpad -= SHA_DIGEST_LENGTH;
446
447 res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1));
448 ret &= (int)~res;
449 }
450#else
451 for (res = 0, i = 0; i < SHA_DIGEST_LENGTH; i++)
452 res |= out[i] ^ pmac->c[i];
453 res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1));
454 ret &= (int)~res;
455
456 /* verify padding */
457 pad = (pad & ~res) | (maxpad & res);
458 out = out + len - 1 - pad;
459 for (res = 0, i = 0; i < pad; i++)
460 res |= out[i] ^ pad;
461
462 res = (0 - res) >> (sizeof(res) * 8 - 1);
463 ret &= (int)~res;
464#endif
465 return ret;
466 } else {
467 SHA1_Update(&key->md, out, len);
468 }
469 }
470
471 return 1;
472}
473
474static int
475aesni_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr)
476{
477 EVP_AES_HMAC_SHA1 *key = data(ctx);
478
479 switch (type) {
480 case EVP_CTRL_AEAD_SET_MAC_KEY:
481 {
482 unsigned int i;
483 unsigned char hmac_key[64];
484
485 memset(hmac_key, 0, sizeof(hmac_key));
486
487 if (arg > (int)sizeof(hmac_key)) {
488 SHA1_Init(&key->head);
489 SHA1_Update(&key->head, ptr, arg);
490 SHA1_Final(hmac_key, &key->head);
491 } else {
492 memcpy(hmac_key, ptr, arg);
493 }
494
495 for (i = 0; i < sizeof(hmac_key); i++)
496 hmac_key[i] ^= 0x36; /* ipad */
497 SHA1_Init(&key->head);
498 SHA1_Update(&key->head, hmac_key, sizeof(hmac_key));
499
500 for (i = 0; i < sizeof(hmac_key); i++)
501 hmac_key[i] ^= 0x36 ^ 0x5c; /* opad */
502 SHA1_Init(&key->tail);
503 SHA1_Update(&key->tail, hmac_key, sizeof(hmac_key));
504
505 OPENSSL_cleanse(hmac_key, sizeof(hmac_key));
506
507 return 1;
508 }
509 case EVP_CTRL_AEAD_TLS1_AAD:
510 {
511 unsigned char *p = ptr;
512 unsigned int len = p[arg - 2] << 8 | p[arg - 1];
513
514 if (ctx->encrypt) {
515 key->payload_length = len;
516 if ((key->aux.tls_ver = p[arg - 4] << 8 |
517 p[arg - 3]) >= TLS1_1_VERSION) {
518 len -= AES_BLOCK_SIZE;
519 p[arg - 2] = len >> 8;
520 p[arg - 1] = len;
521 }
522 key->md = key->head;
523 SHA1_Update(&key->md, p, arg);
524
525 return (int)(((len + SHA_DIGEST_LENGTH +
526 AES_BLOCK_SIZE) & -AES_BLOCK_SIZE) - len);
527 } else {
528 if (arg > 13)
529 arg = 13;
530 memcpy(key->aux.tls_aad, ptr, arg);
531 key->payload_length = arg;
532
533 return SHA_DIGEST_LENGTH;
534 }
535 }
536 default:
537 return -1;
538 }
539}
540
541static EVP_CIPHER aesni_128_cbc_hmac_sha1_cipher = {
542#ifdef NID_aes_128_cbc_hmac_sha1
543 .nid = NID_aes_128_cbc_hmac_sha1,
544#else
545 .nid = NID_undef,
546#endif
547 .block_size = 16,
548 .key_len = 16,
549 .iv_len = 16,
550 .flags = EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 |
551 EVP_CIPH_FLAG_AEAD_CIPHER,
552 .init = aesni_cbc_hmac_sha1_init_key,
553 .do_cipher = aesni_cbc_hmac_sha1_cipher,
554 .ctx_size = sizeof(EVP_AES_HMAC_SHA1),
555 .ctrl = aesni_cbc_hmac_sha1_ctrl
556};
557
558static EVP_CIPHER aesni_256_cbc_hmac_sha1_cipher = {
559#ifdef NID_aes_256_cbc_hmac_sha1
560 .nid = NID_aes_256_cbc_hmac_sha1,
561#else
562 .nid = NID_undef,
563#endif
564 .block_size = 16,
565 .key_len = 32,
566 .iv_len = 16,
567 .flags = EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 |
568 EVP_CIPH_FLAG_AEAD_CIPHER,
569 .init = aesni_cbc_hmac_sha1_init_key,
570 .do_cipher = aesni_cbc_hmac_sha1_cipher,
571 .ctx_size = sizeof(EVP_AES_HMAC_SHA1),
572 .ctrl = aesni_cbc_hmac_sha1_ctrl
573};
574
575const EVP_CIPHER *
576EVP_aes_128_cbc_hmac_sha1(void)
577{
578 return OPENSSL_ia32cap_P[1] & AESNI_CAPABLE ?
579 &aesni_128_cbc_hmac_sha1_cipher : NULL;
580}
581
582const EVP_CIPHER *
583EVP_aes_256_cbc_hmac_sha1(void)
584{
585 return OPENSSL_ia32cap_P[1] & AESNI_CAPABLE ?
586 &aesni_256_cbc_hmac_sha1_cipher : NULL;
587}
588#else
589const EVP_CIPHER *
590EVP_aes_128_cbc_hmac_sha1(void)
591{
592 return NULL;
593}
594
595const EVP_CIPHER *
596EVP_aes_256_cbc_hmac_sha1(void)
597{
598 return NULL;
599}
600#endif
601#endif
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