2 * Copyright 2011-2019 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (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
11 * All low level APIs are deprecated for public use, but still ok for internal
12 * use where we're using them to implement the higher level EVP interface, as is
15 #include "internal/deprecated.h"
17 #include "cipher_aes_cbc_hmac_sha.h"
19 #if !defined(AES_CBC_HMAC_SHA_CAPABLE) || !defined(AESNI_CAPABLE)
20 int cipher_capable_aes_cbc_hmac_sha1(void)
25 const PROV_CIPHER_HW_AES_HMAC_SHA
*PROV_CIPHER_HW_aes_cbc_hmac_sha1(void)
31 # include <openssl/rand.h>
32 # include "crypto/evp.h"
33 # include "internal/constant_time.h"
35 void sha1_block_data_order(void *c
, const void *p
, size_t len
);
36 void aesni_cbc_sha1_enc(const void *inp
, void *out
, size_t blocks
,
37 const AES_KEY
*key
, unsigned char iv
[16],
38 SHA_CTX
*ctx
, const void *in0
);
40 int cipher_capable_aes_cbc_hmac_sha1(void)
42 return AESNI_CBC_HMAC_SHA_CAPABLE
;
45 static int aesni_cbc_hmac_sha1_init_key(PROV_CIPHER_CTX
*vctx
,
46 const unsigned char *key
, size_t keylen
)
49 PROV_AES_HMAC_SHA_CTX
*ctx
= (PROV_AES_HMAC_SHA_CTX
*)vctx
;
50 PROV_AES_HMAC_SHA1_CTX
*sctx
= (PROV_AES_HMAC_SHA1_CTX
*)vctx
;
53 ret
= aesni_set_encrypt_key(key
, keylen
* 8, &ctx
->ks
);
55 ret
= aesni_set_decrypt_key(key
, keylen
* 8, &ctx
->ks
);
57 SHA1_Init(&sctx
->head
); /* handy when benchmarking */
58 sctx
->tail
= sctx
->head
;
59 sctx
->md
= sctx
->head
;
61 ctx
->payload_length
= NO_PAYLOAD_LENGTH
;
63 return ret
< 0 ? 0 : 1;
66 static void sha1_update(SHA_CTX
*c
, const void *data
, size_t len
)
68 const unsigned char *ptr
= data
;
72 res
= SHA_CBLOCK
- res
;
75 SHA1_Update(c
, ptr
, res
);
80 res
= len
% SHA_CBLOCK
;
84 sha1_block_data_order(c
, ptr
, len
/ SHA_CBLOCK
);
89 if (c
->Nl
< (unsigned int)len
)
94 SHA1_Update(c
, ptr
, res
);
97 # if !defined(OPENSSL_NO_MULTIBLOCK)
100 unsigned int A
[8], B
[8], C
[8], D
[8], E
[8];
104 const unsigned char *ptr
;
109 const unsigned char *inp
;
115 void sha1_multi_block(SHA1_MB_CTX
*, const HASH_DESC
*, int);
116 void aesni_multi_cbc_encrypt(CIPH_DESC
*, void *, int);
118 static size_t tls1_multi_block_encrypt(void *vctx
,
120 const unsigned char *inp
,
121 size_t inp_len
, int n4x
)
122 { /* n4x is 1 or 2 */
123 PROV_AES_HMAC_SHA_CTX
*ctx
= (PROV_AES_HMAC_SHA_CTX
*)vctx
;
124 PROV_AES_HMAC_SHA1_CTX
*sctx
= (PROV_AES_HMAC_SHA1_CTX
*)vctx
;
125 HASH_DESC hash_d
[8], edges
[8];
127 unsigned char storage
[sizeof(SHA1_MB_CTX
) + 32];
134 unsigned int frag
, last
, packlen
, i
;
135 unsigned int x4
= 4 * n4x
, minblocks
, processed
= 0;
142 /* ask for IVs in bulk */
143 if (RAND_bytes_ex(ctx
->base
.libctx
, (IVs
= blocks
[0].c
), 16 * x4
) <= 0)
146 mctx
= (SHA1_MB_CTX
*) (storage
+ 32 - ((size_t)storage
% 32)); /* align */
148 frag
= (unsigned int)inp_len
>> (1 + n4x
);
149 last
= (unsigned int)inp_len
+ frag
- (frag
<< (1 + n4x
));
150 if (last
> frag
&& ((last
+ 13 + 9) % 64) < (x4
- 1)) {
155 packlen
= 5 + 16 + ((frag
+ 20 + 16) & -16);
157 /* populate descriptors with pointers and IVs */
160 /* 5+16 is place for header and explicit IV */
161 ciph_d
[0].out
= out
+ 5 + 16;
162 memcpy(ciph_d
[0].out
- 16, IVs
, 16);
163 memcpy(ciph_d
[0].iv
, IVs
, 16);
166 for (i
= 1; i
< x4
; i
++) {
167 ciph_d
[i
].inp
= hash_d
[i
].ptr
= hash_d
[i
- 1].ptr
+ frag
;
168 ciph_d
[i
].out
= ciph_d
[i
- 1].out
+ packlen
;
169 memcpy(ciph_d
[i
].out
- 16, IVs
, 16);
170 memcpy(ciph_d
[i
].iv
, IVs
, 16);
175 memcpy(blocks
[0].c
, sctx
->md
.data
, 8);
176 seqnum
= BSWAP8(blocks
[0].q
[0]);
178 for (i
= 0; i
< x4
; i
++) {
179 unsigned int len
= (i
== (x4
- 1) ? last
: frag
);
180 # if !defined(BSWAP8)
181 unsigned int carry
, j
;
184 mctx
->A
[i
] = sctx
->md
.h0
;
185 mctx
->B
[i
] = sctx
->md
.h1
;
186 mctx
->C
[i
] = sctx
->md
.h2
;
187 mctx
->D
[i
] = sctx
->md
.h3
;
188 mctx
->E
[i
] = sctx
->md
.h4
;
192 blocks
[i
].q
[0] = BSWAP8(seqnum
+ i
);
194 for (carry
= i
, j
= 8; j
--;) {
195 blocks
[i
].c
[j
] = ((u8
*)sctx
->md
.data
)[j
] + carry
;
196 carry
= (blocks
[i
].c
[j
] - carry
) >> (sizeof(carry
) * 8 - 1);
199 blocks
[i
].c
[8] = ((u8
*)sctx
->md
.data
)[8];
200 blocks
[i
].c
[9] = ((u8
*)sctx
->md
.data
)[9];
201 blocks
[i
].c
[10] = ((u8
*)sctx
->md
.data
)[10];
203 blocks
[i
].c
[11] = (u8
)(len
>> 8);
204 blocks
[i
].c
[12] = (u8
)(len
);
206 memcpy(blocks
[i
].c
+ 13, hash_d
[i
].ptr
, 64 - 13);
207 hash_d
[i
].ptr
+= 64 - 13;
208 hash_d
[i
].blocks
= (len
- (64 - 13)) / 64;
210 edges
[i
].ptr
= blocks
[i
].c
;
214 /* hash 13-byte headers and first 64-13 bytes of inputs */
215 sha1_multi_block(mctx
, edges
, n4x
);
216 /* hash bulk inputs */
217 # define MAXCHUNKSIZE 2048
219 # error "MAXCHUNKSIZE is not divisible by 64"
222 * goal is to minimize pressure on L1 cache by moving in shorter steps,
223 * so that hashed data is still in the cache by the time we encrypt it
225 minblocks
= ((frag
<= last
? frag
: last
) - (64 - 13)) / 64;
226 if (minblocks
> MAXCHUNKSIZE
/ 64) {
227 for (i
= 0; i
< x4
; i
++) {
228 edges
[i
].ptr
= hash_d
[i
].ptr
;
229 edges
[i
].blocks
= MAXCHUNKSIZE
/ 64;
230 ciph_d
[i
].blocks
= MAXCHUNKSIZE
/ 16;
233 sha1_multi_block(mctx
, edges
, n4x
);
234 aesni_multi_cbc_encrypt(ciph_d
, &ctx
->ks
, n4x
);
236 for (i
= 0; i
< x4
; i
++) {
237 edges
[i
].ptr
= hash_d
[i
].ptr
+= MAXCHUNKSIZE
;
238 hash_d
[i
].blocks
-= MAXCHUNKSIZE
/ 64;
239 edges
[i
].blocks
= MAXCHUNKSIZE
/ 64;
240 ciph_d
[i
].inp
+= MAXCHUNKSIZE
;
241 ciph_d
[i
].out
+= MAXCHUNKSIZE
;
242 ciph_d
[i
].blocks
= MAXCHUNKSIZE
/ 16;
243 memcpy(ciph_d
[i
].iv
, ciph_d
[i
].out
- 16, 16);
245 processed
+= MAXCHUNKSIZE
;
246 minblocks
-= MAXCHUNKSIZE
/ 64;
247 } while (minblocks
> MAXCHUNKSIZE
/ 64);
251 sha1_multi_block(mctx
, hash_d
, n4x
);
253 memset(blocks
, 0, sizeof(blocks
));
254 for (i
= 0; i
< x4
; i
++) {
255 unsigned int len
= (i
== (x4
- 1) ? last
: frag
),
256 off
= hash_d
[i
].blocks
* 64;
257 const unsigned char *ptr
= hash_d
[i
].ptr
+ off
;
259 off
= (len
- processed
) - (64 - 13) - off
; /* remainder actually */
260 memcpy(blocks
[i
].c
, ptr
, off
);
261 blocks
[i
].c
[off
] = 0x80;
262 len
+= 64 + 13; /* 64 is HMAC header */
263 len
*= 8; /* convert to bits */
264 if (off
< (64 - 8)) {
266 blocks
[i
].d
[15] = BSWAP4(len
);
268 PUTU32(blocks
[i
].c
+ 60, len
);
273 blocks
[i
].d
[31] = BSWAP4(len
);
275 PUTU32(blocks
[i
].c
+ 124, len
);
279 edges
[i
].ptr
= blocks
[i
].c
;
282 /* hash input tails and finalize */
283 sha1_multi_block(mctx
, edges
, n4x
);
285 memset(blocks
, 0, sizeof(blocks
));
286 for (i
= 0; i
< x4
; i
++) {
288 blocks
[i
].d
[0] = BSWAP4(mctx
->A
[i
]);
289 mctx
->A
[i
] = sctx
->tail
.h0
;
290 blocks
[i
].d
[1] = BSWAP4(mctx
->B
[i
]);
291 mctx
->B
[i
] = sctx
->tail
.h1
;
292 blocks
[i
].d
[2] = BSWAP4(mctx
->C
[i
]);
293 mctx
->C
[i
] = sctx
->tail
.h2
;
294 blocks
[i
].d
[3] = BSWAP4(mctx
->D
[i
]);
295 mctx
->D
[i
] = sctx
->tail
.h3
;
296 blocks
[i
].d
[4] = BSWAP4(mctx
->E
[i
]);
297 mctx
->E
[i
] = sctx
->tail
.h4
;
298 blocks
[i
].c
[20] = 0x80;
299 blocks
[i
].d
[15] = BSWAP4((64 + 20) * 8);
301 PUTU32(blocks
[i
].c
+ 0, mctx
->A
[i
]);
302 mctx
->A
[i
] = sctx
->tail
.h0
;
303 PUTU32(blocks
[i
].c
+ 4, mctx
->B
[i
]);
304 mctx
->B
[i
] = sctx
->tail
.h1
;
305 PUTU32(blocks
[i
].c
+ 8, mctx
->C
[i
]);
306 mctx
->C
[i
] = sctx
->tail
.h2
;
307 PUTU32(blocks
[i
].c
+ 12, mctx
->D
[i
]);
308 mctx
->D
[i
] = sctx
->tail
.h3
;
309 PUTU32(blocks
[i
].c
+ 16, mctx
->E
[i
]);
310 mctx
->E
[i
] = sctx
->tail
.h4
;
311 blocks
[i
].c
[20] = 0x80;
312 PUTU32(blocks
[i
].c
+ 60, (64 + 20) * 8);
314 edges
[i
].ptr
= blocks
[i
].c
;
319 sha1_multi_block(mctx
, edges
, n4x
);
321 for (i
= 0; i
< x4
; i
++) {
322 unsigned int len
= (i
== (x4
- 1) ? last
: frag
), pad
, j
;
323 unsigned char *out0
= out
;
325 memcpy(ciph_d
[i
].out
, ciph_d
[i
].inp
, len
- processed
);
326 ciph_d
[i
].inp
= ciph_d
[i
].out
;
331 PUTU32(out
+ 0, mctx
->A
[i
]);
332 PUTU32(out
+ 4, mctx
->B
[i
]);
333 PUTU32(out
+ 8, mctx
->C
[i
]);
334 PUTU32(out
+ 12, mctx
->D
[i
]);
335 PUTU32(out
+ 16, mctx
->E
[i
]);
341 for (j
= 0; j
<= pad
; j
++)
345 ciph_d
[i
].blocks
= (len
- processed
) / 16;
346 len
+= 16; /* account for explicit iv */
349 out0
[0] = ((u8
*)sctx
->md
.data
)[8];
350 out0
[1] = ((u8
*)sctx
->md
.data
)[9];
351 out0
[2] = ((u8
*)sctx
->md
.data
)[10];
352 out0
[3] = (u8
)(len
>> 8);
359 aesni_multi_cbc_encrypt(ciph_d
, &ctx
->ks
, n4x
);
361 OPENSSL_cleanse(blocks
, sizeof(blocks
));
362 OPENSSL_cleanse(mctx
, sizeof(*mctx
));
364 ctx
->multiblock_encrypt_len
= ret
;
367 # endif /* OPENSSL_NO_MULTIBLOCK */
369 static int aesni_cbc_hmac_sha1_cipher(PROV_CIPHER_CTX
*vctx
,
371 const unsigned char *in
, size_t len
)
373 PROV_AES_HMAC_SHA_CTX
*ctx
= (PROV_AES_HMAC_SHA_CTX
*)vctx
;
374 PROV_AES_HMAC_SHA1_CTX
*sctx
= (PROV_AES_HMAC_SHA1_CTX
*)vctx
;
376 size_t plen
= ctx
->payload_length
;
377 size_t iv
= 0; /* explicit IV in TLS 1.1 and later */
378 size_t aes_off
= 0, blocks
;
379 size_t sha_off
= SHA_CBLOCK
- sctx
->md
.num
;
381 ctx
->payload_length
= NO_PAYLOAD_LENGTH
;
383 if (len
% AES_BLOCK_SIZE
)
387 if (plen
== NO_PAYLOAD_LENGTH
)
390 ((plen
+ SHA_DIGEST_LENGTH
+
391 AES_BLOCK_SIZE
) & -AES_BLOCK_SIZE
))
393 else if (ctx
->aux
.tls_ver
>= TLS1_1_VERSION
)
396 if (plen
> (sha_off
+ iv
)
397 && (blocks
= (plen
- (sha_off
+ iv
)) / SHA_CBLOCK
)) {
398 sha1_update(&sctx
->md
, in
+ iv
, sha_off
);
400 aesni_cbc_sha1_enc(in
, out
, blocks
, &ctx
->ks
, ctx
->base
.iv
,
401 &sctx
->md
, in
+ iv
+ sha_off
);
402 blocks
*= SHA_CBLOCK
;
405 sctx
->md
.Nh
+= blocks
>> 29;
406 sctx
->md
.Nl
+= blocks
<<= 3;
407 if (sctx
->md
.Nl
< (unsigned int)blocks
)
413 sha1_update(&sctx
->md
, in
+ sha_off
, plen
- sha_off
);
415 if (plen
!= len
) { /* "TLS" mode of operation */
417 memcpy(out
+ aes_off
, in
+ aes_off
, plen
- aes_off
);
419 /* calculate HMAC and append it to payload */
420 SHA1_Final(out
+ plen
, &sctx
->md
);
421 sctx
->md
= sctx
->tail
;
422 sha1_update(&sctx
->md
, out
+ plen
, SHA_DIGEST_LENGTH
);
423 SHA1_Final(out
+ plen
, &sctx
->md
);
425 /* pad the payload|hmac */
426 plen
+= SHA_DIGEST_LENGTH
;
427 for (l
= len
- plen
- 1; plen
< len
; plen
++)
429 /* encrypt HMAC|padding at once */
430 aesni_cbc_encrypt(out
+ aes_off
, out
+ aes_off
, len
- aes_off
,
431 &ctx
->ks
, ctx
->base
.iv
, 1);
433 aesni_cbc_encrypt(in
+ aes_off
, out
+ aes_off
, len
- aes_off
,
434 &ctx
->ks
, ctx
->base
.iv
, 1);
438 unsigned int u
[SHA_DIGEST_LENGTH
/ sizeof(unsigned int)];
439 unsigned char c
[32 + SHA_DIGEST_LENGTH
];
442 /* arrange cache line alignment */
443 pmac
= (void *)(((size_t)mac
.c
+ 31) & ((size_t)0 - 32));
445 if (plen
!= NO_PAYLOAD_LENGTH
) { /* "TLS" mode of operation */
446 size_t inp_len
, mask
, j
, i
;
447 unsigned int res
, maxpad
, pad
, bitlen
;
450 unsigned int u
[SHA_LBLOCK
];
451 unsigned char c
[SHA_CBLOCK
];
452 } *data
= (void *)sctx
->md
.data
;
454 if ((ctx
->aux
.tls_aad
[plen
- 4] << 8 | ctx
->aux
.tls_aad
[plen
- 3])
456 if (len
< (AES_BLOCK_SIZE
+ SHA_DIGEST_LENGTH
+ 1))
459 /* omit explicit iv */
460 memcpy(ctx
->base
.iv
, in
, AES_BLOCK_SIZE
);
462 in
+= AES_BLOCK_SIZE
;
463 out
+= AES_BLOCK_SIZE
;
464 len
-= AES_BLOCK_SIZE
;
465 } else if (len
< (SHA_DIGEST_LENGTH
+ 1))
468 /* decrypt HMAC|padding at once */
469 aesni_cbc_encrypt(in
, out
, len
, &ctx
->ks
, ctx
->base
.iv
, 0);
471 /* figure out payload length */
473 maxpad
= len
- (SHA_DIGEST_LENGTH
+ 1);
474 maxpad
|= (255 - maxpad
) >> (sizeof(maxpad
) * 8 - 8);
477 mask
= constant_time_ge(maxpad
, pad
);
480 * If pad is invalid then we will fail the above test but we must
481 * continue anyway because we are in constant time code. However,
482 * we'll use the maxpad value instead of the supplied pad to make
483 * sure we perform well defined pointer arithmetic.
485 pad
= constant_time_select(mask
, pad
, maxpad
);
487 inp_len
= len
- (SHA_DIGEST_LENGTH
+ pad
+ 1);
489 ctx
->aux
.tls_aad
[plen
- 2] = inp_len
>> 8;
490 ctx
->aux
.tls_aad
[plen
- 1] = inp_len
;
493 sctx
->md
= sctx
->head
;
494 sha1_update(&sctx
->md
, ctx
->aux
.tls_aad
, plen
);
496 /* code containing lucky-13 fix */
497 len
-= SHA_DIGEST_LENGTH
; /* amend mac */
498 if (len
>= (256 + SHA_CBLOCK
)) {
499 j
= (len
- (256 + SHA_CBLOCK
)) & (0 - SHA_CBLOCK
);
500 j
+= SHA_CBLOCK
- sctx
->md
.num
;
501 sha1_update(&sctx
->md
, out
, j
);
507 /* but pretend as if we hashed padded payload */
508 bitlen
= sctx
->md
.Nl
+ (inp_len
<< 3); /* at most 18 bits */
510 bitlen
= BSWAP4(bitlen
);
513 mac
.c
[1] = (unsigned char)(bitlen
>> 16);
514 mac
.c
[2] = (unsigned char)(bitlen
>> 8);
515 mac
.c
[3] = (unsigned char)bitlen
;
525 for (res
= sctx
->md
.num
, j
= 0; j
< len
; j
++) {
527 mask
= (j
- inp_len
) >> (sizeof(j
) * 8 - 8);
529 c
|= 0x80 & ~mask
& ~((inp_len
- j
) >> (sizeof(j
) * 8 - 8));
530 data
->c
[res
++] = (unsigned char)c
;
532 if (res
!= SHA_CBLOCK
)
535 /* j is not incremented yet */
536 mask
= 0 - ((inp_len
+ 7 - j
) >> (sizeof(j
) * 8 - 1));
537 data
->u
[SHA_LBLOCK
- 1] |= bitlen
& mask
;
538 sha1_block_data_order(&sctx
->md
, data
, 1);
539 mask
&= 0 - ((j
- inp_len
- 72) >> (sizeof(j
) * 8 - 1));
540 pmac
->u
[0] |= sctx
->md
.h0
& mask
;
541 pmac
->u
[1] |= sctx
->md
.h1
& mask
;
542 pmac
->u
[2] |= sctx
->md
.h2
& mask
;
543 pmac
->u
[3] |= sctx
->md
.h3
& mask
;
544 pmac
->u
[4] |= sctx
->md
.h4
& mask
;
548 for (i
= res
; i
< SHA_CBLOCK
; i
++, j
++)
551 if (res
> SHA_CBLOCK
- 8) {
552 mask
= 0 - ((inp_len
+ 8 - j
) >> (sizeof(j
) * 8 - 1));
553 data
->u
[SHA_LBLOCK
- 1] |= bitlen
& mask
;
554 sha1_block_data_order(&sctx
->md
, data
, 1);
555 mask
&= 0 - ((j
- inp_len
- 73) >> (sizeof(j
) * 8 - 1));
556 pmac
->u
[0] |= sctx
->md
.h0
& mask
;
557 pmac
->u
[1] |= sctx
->md
.h1
& mask
;
558 pmac
->u
[2] |= sctx
->md
.h2
& mask
;
559 pmac
->u
[3] |= sctx
->md
.h3
& mask
;
560 pmac
->u
[4] |= sctx
->md
.h4
& mask
;
562 memset(data
, 0, SHA_CBLOCK
);
565 data
->u
[SHA_LBLOCK
- 1] = bitlen
;
566 sha1_block_data_order(&sctx
->md
, data
, 1);
567 mask
= 0 - ((j
- inp_len
- 73) >> (sizeof(j
) * 8 - 1));
568 pmac
->u
[0] |= sctx
->md
.h0
& mask
;
569 pmac
->u
[1] |= sctx
->md
.h1
& mask
;
570 pmac
->u
[2] |= sctx
->md
.h2
& mask
;
571 pmac
->u
[3] |= sctx
->md
.h3
& mask
;
572 pmac
->u
[4] |= sctx
->md
.h4
& mask
;
575 pmac
->u
[0] = BSWAP4(pmac
->u
[0]);
576 pmac
->u
[1] = BSWAP4(pmac
->u
[1]);
577 pmac
->u
[2] = BSWAP4(pmac
->u
[2]);
578 pmac
->u
[3] = BSWAP4(pmac
->u
[3]);
579 pmac
->u
[4] = BSWAP4(pmac
->u
[4]);
581 for (i
= 0; i
< 5; i
++) {
583 pmac
->c
[4 * i
+ 0] = (unsigned char)(res
>> 24);
584 pmac
->c
[4 * i
+ 1] = (unsigned char)(res
>> 16);
585 pmac
->c
[4 * i
+ 2] = (unsigned char)(res
>> 8);
586 pmac
->c
[4 * i
+ 3] = (unsigned char)res
;
589 len
+= SHA_DIGEST_LENGTH
;
590 sctx
->md
= sctx
->tail
;
591 sha1_update(&sctx
->md
, pmac
->c
, SHA_DIGEST_LENGTH
);
592 SHA1_Final(pmac
->c
, &sctx
->md
);
597 /* version of code with lucky-13 fix */
599 unsigned char *p
= out
+ len
- 1 - maxpad
- SHA_DIGEST_LENGTH
;
600 size_t off
= out
- p
;
601 unsigned int c
, cmask
;
603 maxpad
+= SHA_DIGEST_LENGTH
;
604 for (res
= 0, i
= 0, j
= 0; j
< maxpad
; j
++) {
607 ((int)(j
- off
- SHA_DIGEST_LENGTH
)) >> (sizeof(int) *
609 res
|= (c
^ pad
) & ~cmask
; /* ... and padding */
610 cmask
&= ((int)(off
- 1 - j
)) >> (sizeof(int) * 8 - 1);
611 res
|= (c
^ pmac
->c
[i
]) & cmask
;
614 maxpad
-= SHA_DIGEST_LENGTH
;
616 res
= 0 - ((0 - res
) >> (sizeof(res
) * 8 - 1));
621 /* decrypt HMAC|padding at once */
622 aesni_cbc_encrypt(in
, out
, len
, &ctx
->ks
, ctx
->base
.iv
, 0);
623 sha1_update(&sctx
->md
, out
, len
);
630 /* EVP_CTRL_AEAD_SET_MAC_KEY */
631 static void aesni_cbc_hmac_sha1_set_mac_key(void *vctx
,
632 const unsigned char *mac
, size_t len
)
634 PROV_AES_HMAC_SHA1_CTX
*ctx
= (PROV_AES_HMAC_SHA1_CTX
*)vctx
;
636 unsigned char hmac_key
[64];
638 memset(hmac_key
, 0, sizeof(hmac_key
));
640 if (len
> (int)sizeof(hmac_key
)) {
641 SHA1_Init(&ctx
->head
);
642 sha1_update(&ctx
->head
, mac
, len
);
643 SHA1_Final(hmac_key
, &ctx
->head
);
645 memcpy(hmac_key
, mac
, len
);
648 for (i
= 0; i
< sizeof(hmac_key
); i
++)
649 hmac_key
[i
] ^= 0x36; /* ipad */
650 SHA1_Init(&ctx
->head
);
651 sha1_update(&ctx
->head
, hmac_key
, sizeof(hmac_key
));
653 for (i
= 0; i
< sizeof(hmac_key
); i
++)
654 hmac_key
[i
] ^= 0x36 ^ 0x5c; /* opad */
655 SHA1_Init(&ctx
->tail
);
656 sha1_update(&ctx
->tail
, hmac_key
, sizeof(hmac_key
));
658 OPENSSL_cleanse(hmac_key
, sizeof(hmac_key
));
661 /* EVP_CTRL_AEAD_TLS1_AAD */
662 static int aesni_cbc_hmac_sha1_set_tls1_aad(void *vctx
,
663 unsigned char *aad_rec
, int aad_len
)
665 PROV_AES_HMAC_SHA_CTX
*ctx
= (PROV_AES_HMAC_SHA_CTX
*)vctx
;
666 PROV_AES_HMAC_SHA1_CTX
*sctx
= (PROV_AES_HMAC_SHA1_CTX
*)vctx
;
667 unsigned char *p
= aad_rec
;
670 if (aad_len
!= EVP_AEAD_TLS1_AAD_LEN
)
673 len
= p
[aad_len
- 2] << 8 | p
[aad_len
- 1];
676 ctx
->payload_length
= len
;
677 if ((ctx
->aux
.tls_ver
=
678 p
[aad_len
- 4] << 8 | p
[aad_len
- 3]) >= TLS1_1_VERSION
) {
679 if (len
< AES_BLOCK_SIZE
)
681 len
-= AES_BLOCK_SIZE
;
682 p
[aad_len
- 2] = len
>> 8;
683 p
[aad_len
- 1] = len
;
685 sctx
->md
= sctx
->head
;
686 sha1_update(&sctx
->md
, p
, aad_len
);
687 ctx
->tls_aad_pad
= (int)(((len
+ SHA_DIGEST_LENGTH
+
688 AES_BLOCK_SIZE
) & -AES_BLOCK_SIZE
)
692 memcpy(ctx
->aux
.tls_aad
, aad_rec
, aad_len
);
693 ctx
->payload_length
= aad_len
;
694 ctx
->tls_aad_pad
= SHA_DIGEST_LENGTH
;
699 # if !defined(OPENSSL_NO_MULTIBLOCK)
701 /* EVP_CTRL_TLS1_1_MULTIBLOCK_MAX_BUFSIZE */
702 static int aesni_cbc_hmac_sha1_tls1_multiblock_max_bufsize(void *vctx
)
704 PROV_AES_HMAC_SHA_CTX
*ctx
= (PROV_AES_HMAC_SHA_CTX
*)vctx
;
706 OPENSSL_assert(ctx
->multiblock_max_send_fragment
!= 0);
708 + (((int)ctx
->multiblock_max_send_fragment
+ 20 + 16) & -16));
711 /* EVP_CTRL_TLS1_1_MULTIBLOCK_AAD */
712 static int aesni_cbc_hmac_sha1_tls1_multiblock_aad(
713 void *vctx
, EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM
*param
)
715 PROV_AES_HMAC_SHA_CTX
*ctx
= (PROV_AES_HMAC_SHA_CTX
*)vctx
;
716 PROV_AES_HMAC_SHA1_CTX
*sctx
= (PROV_AES_HMAC_SHA1_CTX
*)vctx
;
717 unsigned int n4x
= 1, x4
;
718 unsigned int frag
, last
, packlen
, inp_len
;
720 inp_len
= param
->inp
[11] << 8 | param
->inp
[12];
721 ctx
->multiblock_interleave
= param
->interleave
;
724 if ((param
->inp
[9] << 8 | param
->inp
[10]) < TLS1_1_VERSION
)
729 return 0; /* too short */
731 if (inp_len
>= 8192 && OPENSSL_ia32cap_P
[2] & (1 << 5))
733 } else if ((n4x
= param
->interleave
/ 4) && n4x
<= 2)
734 inp_len
= param
->len
;
738 sctx
->md
= sctx
->head
;
739 sha1_update(&sctx
->md
, param
->inp
, 13);
744 frag
= inp_len
>> n4x
;
745 last
= inp_len
+ frag
- (frag
<< n4x
);
746 if (last
> frag
&& ((last
+ 13 + 9) % 64 < (x4
- 1))) {
751 packlen
= 5 + 16 + ((frag
+ 20 + 16) & -16);
752 packlen
= (packlen
<< n4x
) - packlen
;
753 packlen
+= 5 + 16 + ((last
+ 20 + 16) & -16);
755 param
->interleave
= x4
;
756 /* The returned values used by get need to be stored */
757 ctx
->multiblock_interleave
= x4
;
758 ctx
->multiblock_aad_packlen
= packlen
;
761 return -1; /* not yet */
764 /* EVP_CTRL_TLS1_1_MULTIBLOCK_ENCRYPT */
765 static int aesni_cbc_hmac_sha1_tls1_multiblock_encrypt(
766 void *ctx
, EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM
*param
)
768 return (int)tls1_multi_block_encrypt(ctx
, param
->out
,
769 param
->inp
, param
->len
,
770 param
->interleave
/ 4);
773 # endif /* OPENSSL_NO_MULTIBLOCK */
775 static const PROV_CIPHER_HW_AES_HMAC_SHA cipher_hw_aes_hmac_sha1
= {
777 aesni_cbc_hmac_sha1_init_key
,
778 aesni_cbc_hmac_sha1_cipher
780 aesni_cbc_hmac_sha1_set_mac_key
,
781 aesni_cbc_hmac_sha1_set_tls1_aad
,
782 # if !defined(OPENSSL_NO_MULTIBLOCK)
783 aesni_cbc_hmac_sha1_tls1_multiblock_max_bufsize
,
784 aesni_cbc_hmac_sha1_tls1_multiblock_aad
,
785 aesni_cbc_hmac_sha1_tls1_multiblock_encrypt
789 const PROV_CIPHER_HW_AES_HMAC_SHA
*PROV_CIPHER_HW_aes_cbc_hmac_sha1(void)
791 return &cipher_hw_aes_hmac_sha1
;
794 #endif /* !defined(AES_CBC_HMAC_SHA_CAPABLE) || !defined(AESNI_CAPABLE) */