1 /* ====================================================================
2 * Copyright (c) 2011-2013 The OpenSSL Project. All rights reserved.
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in
13 * the documentation and/or other materials provided with the
16 * 3. All advertising materials mentioning features or use of this
17 * software must display the following acknowledgment:
18 * "This product includes software developed by the OpenSSL Project
19 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
21 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
22 * endorse or promote products derived from this software without
23 * prior written permission. For written permission, please contact
24 * licensing@OpenSSL.org.
26 * 5. Products derived from this software may not be called "OpenSSL"
27 * nor may "OpenSSL" appear in their names without prior written
28 * permission of the OpenSSL Project.
30 * 6. Redistributions of any form whatsoever must retain the following
32 * "This product includes software developed by the OpenSSL Project
33 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
35 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
36 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
37 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
41 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
42 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
43 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
44 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
45 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
46 * OF THE POSSIBILITY OF SUCH DAMAGE.
47 * ====================================================================
50 #include <openssl/opensslconf.h>
55 #if !defined(OPENSSL_NO_AES) && !defined(OPENSSL_NO_SHA256)
57 #include <openssl/evp.h>
58 #include <openssl/objects.h>
59 #include <openssl/aes.h>
60 #include <openssl/sha.h>
61 #include <openssl/rand.h>
62 #include "modes_lcl.h"
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
70 #if !defined(EVP_CIPH_FLAG_DEFAULT_ASN1)
71 #define EVP_CIPH_FLAG_DEFAULT_ASN1 0
74 #if !defined(EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK)
75 #define EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK 0
78 #define TLS1_1_VERSION 0x0302
83 SHA256_CTX head,tail,md;
84 size_t payload_length; /* AAD length in decrypt case */
87 unsigned char tls_aad[16]; /* 13 used */
89 } EVP_AES_HMAC_SHA256;
91 #define NO_PAYLOAD_LENGTH ((size_t)-1)
93 #if defined(AES_ASM) && ( \
94 defined(__x86_64) || defined(__x86_64__) || \
95 defined(_M_AMD64) || defined(_M_X64) || \
98 extern unsigned int OPENSSL_ia32cap_P[3];
99 #define AESNI_CAPABLE (1<<(57-32))
101 int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
103 int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
106 void aesni_cbc_encrypt(const unsigned char *in,
110 unsigned char *ivec, int enc);
112 int aesni_cbc_sha256_enc (const void *inp, void *out, size_t blocks,
113 const AES_KEY *key, unsigned char iv[16],
114 SHA256_CTX *ctx,const void *in0);
116 #define data(ctx) ((EVP_AES_HMAC_SHA256 *)(ctx)->cipher_data)
118 static int aesni_cbc_hmac_sha256_init_key(EVP_CIPHER_CTX *ctx,
119 const unsigned char *inkey,
120 const unsigned char *iv, int enc)
122 EVP_AES_HMAC_SHA256 *key = data(ctx);
126 memset(&key->ks,0,sizeof(key->ks.rd_key)),
127 ret=aesni_set_encrypt_key(inkey,ctx->key_len*8,&key->ks);
129 ret=aesni_set_decrypt_key(inkey,ctx->key_len*8,&key->ks);
131 SHA256_Init(&key->head); /* handy when benchmarking */
132 key->tail = key->head;
135 key->payload_length = NO_PAYLOAD_LENGTH;
140 #define STITCHED_CALL
142 #if !defined(STITCHED_CALL)
146 void sha256_block_data_order (void *c,const void *p,size_t len);
148 static void sha256_update(SHA256_CTX *c,const void *data,size_t len)
149 { const unsigned char *ptr = data;
152 if ((res = c->num)) {
153 res = SHA256_CBLOCK-res;
154 if (len<res) res=len;
155 SHA256_Update (c,ptr,res);
160 res = len % SHA256_CBLOCK;
164 sha256_block_data_order(c,ptr,len/SHA256_CBLOCK);
169 if (c->Nl<(unsigned int)len) c->Nh++;
173 SHA256_Update(c,ptr,res);
179 #define SHA256_Update sha256_update
181 #if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK
183 typedef struct { unsigned int A[8],B[8],C[8],D[8],E[8],F[8],G[8],H[8]; } SHA256_MB_CTX;
184 typedef struct { const unsigned char *ptr; int blocks; } HASH_DESC;
186 void sha256_multi_block(SHA256_MB_CTX *,const HASH_DESC *,int);
188 typedef struct { const unsigned char *inp; unsigned char *out;
189 int blocks; u64 iv[2]; } CIPH_DESC;
191 void aesni_multi_cbc_encrypt(CIPH_DESC *,void *,int);
193 static size_t tls1_1_multi_block_encrypt(EVP_AES_HMAC_SHA256 *key,
194 unsigned char *out, const unsigned char *inp, size_t inp_len,
195 int n4x) /* n4x is 1 or 2 */
197 HASH_DESC hash_d[8], edges[8];
199 unsigned char storage[sizeof(SHA256_MB_CTX)+32];
202 u8 c[128]; } blocks[8];
204 unsigned int frag, last, packlen, i, x4=4*n4x;
208 ctx = (SHA256_MB_CTX *)(storage+32-((size_t)storage%32)); /* align */
210 frag = (unsigned int)inp_len>>(1+n4x);
211 last = (unsigned int)inp_len+frag-(frag<<(1+n4x));
212 if (last>frag && ((last+13+9)%64)<(x4-1)) {
218 for (i=1;i<x4;i++) hash_d[i].ptr = hash_d[i-1].ptr+frag;
221 unsigned int len = (i==(x4-1)?last:frag);
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];
234 blocks[i].q[0] = BSWAP8(BSWAP8(*(u64*)key->md.data)+i);
236 blocks[i].c[7] += ((u8*)key->md.data)[7]+i;
237 if (blocks[i].c[7] < i) {
241 if (blocks[i].c[j]=((u8*)key->md.data)[j]+1) break;
245 blocks[i].c[8] = ((u8*)key->md.data)[8];
246 blocks[i].c[9] = ((u8*)key->md.data)[9];
247 blocks[i].c[10] = ((u8*)key->md.data)[10];
249 blocks[i].c[11] = (u8)(len>>8);
250 blocks[i].c[12] = (u8)(len);
252 memcpy(blocks[i].c+13,hash_d[i].ptr,64-13);
253 hash_d[i].ptr += 64-13;
254 hash_d[i].blocks = (len-(64-13))/64;
256 edges[i].ptr = blocks[i].c;
260 /* hash 13-byte headers and first 64-13 bytes of inputs */
261 sha256_multi_block(ctx,edges,n4x);
262 /* hash bulk inputs */
263 sha256_multi_block(ctx,hash_d,n4x);
265 memset(blocks,0,sizeof(blocks));
267 unsigned int len = (i==(x4-1)?last:frag),
268 off = hash_d[i].blocks*64;
269 const unsigned char *ptr = hash_d[i].ptr+off;
271 off = len-(64-13)-off; /* remainder actually */
272 memcpy(blocks[i].c,ptr,off);
273 blocks[i].c[off]=0x80;
274 len += 64+13; /* 64 is HMAC header */
275 len *= 8; /* convert to bits */
277 blocks[i].d[15] = BSWAP4(len);
280 blocks[i].d[31] = BSWAP4(len);
283 edges[i].ptr = blocks[i].c;
286 /* hash input tails and finalize */
287 sha256_multi_block(ctx,edges,n4x);
289 memset(blocks,0,sizeof(blocks));
291 blocks[i].d[0] = BSWAP4(ctx->A[i]); ctx->A[i] = key->tail.h[0];
292 blocks[i].d[1] = BSWAP4(ctx->B[i]); ctx->B[i] = key->tail.h[1];
293 blocks[i].d[2] = BSWAP4(ctx->C[i]); ctx->C[i] = key->tail.h[2];
294 blocks[i].d[3] = BSWAP4(ctx->D[i]); ctx->D[i] = key->tail.h[3];
295 blocks[i].d[4] = BSWAP4(ctx->E[i]); ctx->E[i] = key->tail.h[4];
296 blocks[i].d[5] = BSWAP4(ctx->F[i]); ctx->F[i] = key->tail.h[5];
297 blocks[i].d[6] = BSWAP4(ctx->G[i]); ctx->G[i] = key->tail.h[6];
298 blocks[i].d[7] = BSWAP4(ctx->H[i]); ctx->H[i] = key->tail.h[7];
299 blocks[i].c[32] = 0x80;
300 blocks[i].d[15] = BSWAP4((64+32)*8);
301 edges[i].ptr = blocks[i].c;
306 sha256_multi_block(ctx,edges,n4x);
308 packlen = 5+16+((frag+32+16)&-16);
310 out += (packlen<<(1+n4x))-packlen;
311 inp += (frag<<(1+n4x))-frag;
313 RAND_bytes((IVs=blocks[0].c),16*x4); /* ask for IVs in bulk */
316 unsigned int len = (i==(x4-1)?last:frag), pad, j;
317 unsigned char *out0 = out;
319 out += 5+16; /* place for header and explicit IV */
323 memmove(out,inp,len);
327 ((u32 *)out)[0] = BSWAP4(ctx->A[i]);
328 ((u32 *)out)[1] = BSWAP4(ctx->B[i]);
329 ((u32 *)out)[2] = BSWAP4(ctx->C[i]);
330 ((u32 *)out)[3] = BSWAP4(ctx->D[i]);
331 ((u32 *)out)[4] = BSWAP4(ctx->E[i]);
332 ((u32 *)out)[5] = BSWAP4(ctx->F[i]);
333 ((u32 *)out)[6] = BSWAP4(ctx->G[i]);
334 ((u32 *)out)[7] = BSWAP4(ctx->H[i]);
340 for (j=0;j<=pad;j++) *(out++) = pad;
343 ciph_d[i].blocks = len/16;
344 len += 16; /* account for explicit iv */
347 out0[0] = ((u8*)key->md.data)[8];
348 out0[1] = ((u8*)key->md.data)[9];
349 out0[2] = ((u8*)key->md.data)[10];
350 out0[3] = (u8)(len>>8);
354 memcpy(ciph_d[i].iv, IVs, 16);
355 memcpy(&out0[5], IVs, 16);
366 aesni_multi_cbc_encrypt(ciph_d,&key->ks,n4x);
368 OPENSSL_cleanse(blocks,sizeof(blocks));
369 OPENSSL_cleanse(ctx,sizeof(*ctx));
375 static int aesni_cbc_hmac_sha256_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
376 const unsigned char *in, size_t len)
378 EVP_AES_HMAC_SHA256 *key = data(ctx);
380 size_t plen = key->payload_length,
381 iv = 0, /* explicit IV in TLS 1.1 and later */
383 #if defined(STITCHED_CALL)
387 sha_off = SHA256_CBLOCK-key->md.num;
390 key->payload_length = NO_PAYLOAD_LENGTH;
392 if (len%AES_BLOCK_SIZE) return 0;
395 if (plen==NO_PAYLOAD_LENGTH)
397 else if (len!=((plen+SHA256_DIGEST_LENGTH+AES_BLOCK_SIZE)&-AES_BLOCK_SIZE))
399 else if (key->aux.tls_ver >= TLS1_1_VERSION)
402 #if defined(STITCHED_CALL)
403 if (OPENSSL_ia32cap_P[1]&(1<<(60-32)) &&
405 (blocks=(plen-(sha_off+iv))/SHA256_CBLOCK)) {
406 SHA256_Update(&key->md,in+iv,sha_off);
408 (void)aesni_cbc_sha256_enc(in,out,blocks,&key->ks,
409 ctx->iv,&key->md,in+iv+sha_off);
410 blocks *= SHA256_CBLOCK;
413 key->md.Nh += blocks>>29;
414 key->md.Nl += blocks<<=3;
415 if (key->md.Nl<(unsigned int)blocks) key->md.Nh++;
421 SHA256_Update(&key->md,in+sha_off,plen-sha_off);
423 if (plen!=len) { /* "TLS" mode of operation */
425 memcpy(out+aes_off,in+aes_off,plen-aes_off);
427 /* calculate HMAC and append it to payload */
428 SHA256_Final(out+plen,&key->md);
430 SHA256_Update(&key->md,out+plen,SHA256_DIGEST_LENGTH);
431 SHA256_Final(out+plen,&key->md);
433 /* pad the payload|hmac */
434 plen += SHA256_DIGEST_LENGTH;
435 for (l=len-plen-1;plen<len;plen++) out[plen]=l;
436 /* encrypt HMAC|padding at once */
437 aesni_cbc_encrypt(out+aes_off,out+aes_off,len-aes_off,
440 aesni_cbc_encrypt(in+aes_off,out+aes_off,len-aes_off,
444 union { unsigned int u[SHA256_DIGEST_LENGTH/sizeof(unsigned int)];
445 unsigned char c[64+SHA256_DIGEST_LENGTH]; } mac, *pmac;
447 /* arrange cache line alignment */
448 pmac = (void *)(((size_t)mac.c+63)&((size_t)0-64));
450 /* decrypt HMAC|padding at once */
451 aesni_cbc_encrypt(in,out,len,
454 if (plen) { /* "TLS" mode of operation */
455 size_t inp_len, mask, j, i;
456 unsigned int res, maxpad, pad, bitlen;
458 union { unsigned int u[SHA_LBLOCK];
459 unsigned char c[SHA256_CBLOCK]; }
460 *data = (void *)key->md.data;
462 if ((key->aux.tls_aad[plen-4]<<8|key->aux.tls_aad[plen-3])
466 if (len<(iv+SHA256_DIGEST_LENGTH+1))
469 /* omit explicit iv */
473 /* figure out payload length */
475 maxpad = len-(SHA256_DIGEST_LENGTH+1);
476 maxpad |= (255-maxpad)>>(sizeof(maxpad)*8-8);
479 inp_len = len - (SHA256_DIGEST_LENGTH+pad+1);
480 mask = (0-((inp_len-len)>>(sizeof(inp_len)*8-1)));
484 key->aux.tls_aad[plen-2] = inp_len>>8;
485 key->aux.tls_aad[plen-1] = inp_len;
489 SHA256_Update(&key->md,key->aux.tls_aad,plen);
492 len -= SHA256_DIGEST_LENGTH; /* amend mac */
493 if (len>=(256+SHA256_CBLOCK)) {
494 j = (len-(256+SHA256_CBLOCK))&(0-SHA256_CBLOCK);
495 j += SHA256_CBLOCK-key->md.num;
496 SHA256_Update(&key->md,out,j);
502 /* but pretend as if we hashed padded payload */
503 bitlen = key->md.Nl+(inp_len<<3); /* at most 18 bits */
505 bitlen = BSWAP4(bitlen);
508 mac.c[1] = (unsigned char)(bitlen>>16);
509 mac.c[2] = (unsigned char)(bitlen>>8);
510 mac.c[3] = (unsigned char)bitlen;
523 for (res=key->md.num, j=0;j<len;j++) {
525 mask = (j-inp_len)>>(sizeof(j)*8-8);
527 c |= 0x80&~mask&~((inp_len-j)>>(sizeof(j)*8-8));
528 data->c[res++]=(unsigned char)c;
530 if (res!=SHA256_CBLOCK) continue;
532 /* j is not incremented yet */
533 mask = 0-((inp_len+7-j)>>(sizeof(j)*8-1));
534 data->u[SHA_LBLOCK-1] |= bitlen&mask;
535 sha256_block_data_order(&key->md,data,1);
536 mask &= 0-((j-inp_len-72)>>(sizeof(j)*8-1));
537 pmac->u[0] |= key->md.h[0] & mask;
538 pmac->u[1] |= key->md.h[1] & mask;
539 pmac->u[2] |= key->md.h[2] & mask;
540 pmac->u[3] |= key->md.h[3] & mask;
541 pmac->u[4] |= key->md.h[4] & mask;
542 pmac->u[5] |= key->md.h[5] & mask;
543 pmac->u[6] |= key->md.h[6] & mask;
544 pmac->u[7] |= key->md.h[7] & mask;
548 for(i=res;i<SHA256_CBLOCK;i++,j++) data->c[i]=0;
550 if (res>SHA256_CBLOCK-8) {
551 mask = 0-((inp_len+8-j)>>(sizeof(j)*8-1));
552 data->u[SHA_LBLOCK-1] |= bitlen&mask;
553 sha256_block_data_order(&key->md,data,1);
554 mask &= 0-((j-inp_len-73)>>(sizeof(j)*8-1));
555 pmac->u[0] |= key->md.h[0] & mask;
556 pmac->u[1] |= key->md.h[1] & mask;
557 pmac->u[2] |= key->md.h[2] & mask;
558 pmac->u[3] |= key->md.h[3] & mask;
559 pmac->u[4] |= key->md.h[4] & mask;
560 pmac->u[5] |= key->md.h[5] & mask;
561 pmac->u[6] |= key->md.h[6] & mask;
562 pmac->u[7] |= key->md.h[7] & mask;
564 memset(data,0,SHA256_CBLOCK);
567 data->u[SHA_LBLOCK-1] = bitlen;
568 sha256_block_data_order(&key->md,data,1);
569 mask = 0-((j-inp_len-73)>>(sizeof(j)*8-1));
570 pmac->u[0] |= key->md.h[0] & mask;
571 pmac->u[1] |= key->md.h[1] & mask;
572 pmac->u[2] |= key->md.h[2] & mask;
573 pmac->u[3] |= key->md.h[3] & mask;
574 pmac->u[4] |= key->md.h[4] & mask;
575 pmac->u[5] |= key->md.h[5] & mask;
576 pmac->u[6] |= key->md.h[6] & mask;
577 pmac->u[7] |= key->md.h[7] & mask;
580 pmac->u[0] = BSWAP4(pmac->u[0]);
581 pmac->u[1] = BSWAP4(pmac->u[1]);
582 pmac->u[2] = BSWAP4(pmac->u[2]);
583 pmac->u[3] = BSWAP4(pmac->u[3]);
584 pmac->u[4] = BSWAP4(pmac->u[4]);
585 pmac->u[5] = BSWAP4(pmac->u[5]);
586 pmac->u[6] = BSWAP4(pmac->u[6]);
587 pmac->u[7] = BSWAP4(pmac->u[7]);
591 pmac->c[4*i+0]=(unsigned char)(res>>24);
592 pmac->c[4*i+1]=(unsigned char)(res>>16);
593 pmac->c[4*i+2]=(unsigned char)(res>>8);
594 pmac->c[4*i+3]=(unsigned char)res;
597 len += SHA256_DIGEST_LENGTH;
599 SHA256_Update(&key->md,out,inp_len);
601 SHA256_Final(pmac->c,&key->md);
604 unsigned int inp_blocks, pad_blocks;
606 /* but pretend as if we hashed padded payload */
607 inp_blocks = 1+((SHA256_CBLOCK-9-res)>>(sizeof(res)*8-1));
608 res += (unsigned int)(len-inp_len);
609 pad_blocks = res / SHA256_CBLOCK;
610 res %= SHA256_CBLOCK;
611 pad_blocks += 1+((SHA256_CBLOCK-9-res)>>(sizeof(res)*8-1));
612 for (;inp_blocks<pad_blocks;inp_blocks++)
613 sha1_block_data_order(&key->md,data,1);
617 SHA256_Update(&key->md,pmac->c,SHA256_DIGEST_LENGTH);
618 SHA256_Final(pmac->c,&key->md);
625 unsigned char *p = out+len-1-maxpad-SHA256_DIGEST_LENGTH;
627 unsigned int c, cmask;
629 maxpad += SHA256_DIGEST_LENGTH;
630 for (res=0,i=0,j=0;j<maxpad;j++) {
632 cmask = ((int)(j-off-SHA256_DIGEST_LENGTH))>>(sizeof(int)*8-1);
633 res |= (c^pad)&~cmask; /* ... and padding */
634 cmask &= ((int)(off-1-j))>>(sizeof(int)*8-1);
635 res |= (c^pmac->c[i])&cmask;
638 maxpad -= SHA256_DIGEST_LENGTH;
640 res = 0-((0-res)>>(sizeof(res)*8-1));
644 for (res=0,i=0;i<SHA256_DIGEST_LENGTH;i++)
645 res |= out[i]^pmac->c[i];
646 res = 0-((0-res)>>(sizeof(res)*8-1));
650 pad = (pad&~res) | (maxpad&res);
652 for (res=0,i=0;i<pad;i++)
655 res = (0-res)>>(sizeof(res)*8-1);
660 SHA256_Update(&key->md,out,len);
667 static int aesni_cbc_hmac_sha256_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr)
669 EVP_AES_HMAC_SHA256 *key = data(ctx);
673 case EVP_CTRL_AEAD_SET_MAC_KEY:
676 unsigned char hmac_key[64];
678 memset (hmac_key,0,sizeof(hmac_key));
680 if (arg > (int)sizeof(hmac_key)) {
681 SHA256_Init(&key->head);
682 SHA256_Update(&key->head,ptr,arg);
683 SHA256_Final(hmac_key,&key->head);
685 memcpy(hmac_key,ptr,arg);
688 for (i=0;i<sizeof(hmac_key);i++)
689 hmac_key[i] ^= 0x36; /* ipad */
690 SHA256_Init(&key->head);
691 SHA256_Update(&key->head,hmac_key,sizeof(hmac_key));
693 for (i=0;i<sizeof(hmac_key);i++)
694 hmac_key[i] ^= 0x36^0x5c; /* opad */
695 SHA256_Init(&key->tail);
696 SHA256_Update(&key->tail,hmac_key,sizeof(hmac_key));
698 OPENSSL_cleanse(hmac_key,sizeof(hmac_key));
702 case EVP_CTRL_AEAD_TLS1_AAD:
704 unsigned char *p=ptr;
705 unsigned int len=p[arg-2]<<8|p[arg-1];
709 key->payload_length = len;
710 if ((key->aux.tls_ver=p[arg-4]<<8|p[arg-3]) >= TLS1_1_VERSION) {
711 len -= AES_BLOCK_SIZE;
716 SHA256_Update(&key->md,p,arg);
718 return (int)(((len+SHA256_DIGEST_LENGTH+AES_BLOCK_SIZE)&-AES_BLOCK_SIZE)
723 if (arg>13) arg = 13;
724 memcpy(key->aux.tls_aad,ptr,arg);
725 key->payload_length = arg;
727 return SHA256_DIGEST_LENGTH;
730 #if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK
731 case EVP_CTRL_TLS1_1_MULTIBLOCK_AAD:
733 EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *param =
734 (EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *)ptr;
735 unsigned int n4x=1, x4;
736 unsigned int frag, last, packlen, inp_len;
738 if (arg<sizeof(EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM)) return -1;
740 inp_len = param->inp[11]<<8|param->inp[12];
744 if ((param->inp[9]<<8|param->inp[10]) < TLS1_1_VERSION)
747 if (inp_len<2048) return 0; /* too short */
749 if (OPENSSL_ia32cap_P[2]&(1<<5)) n4x=2; /* AVX2 */
752 SHA256_Update(&key->md,param->inp,13);
754 x4 = 4*n4x; n4x += 1;
757 last = inp_len+frag-(frag<<n4x);
758 if (last>frag && ((last+13+9)%64<(x4-1))) {
763 packlen = 5+16+((frag+32+16)&-16);
764 packlen = (packlen<<n4x)-packlen;
765 packlen += 5+16+((last+32+16)&-16);
767 param->interleave = x4;
772 return -1; /* not yet */
774 case EVP_CTRL_TLS1_1_MULTIBLOCK_ENCRYPT:
776 EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *param =
777 (EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *)ptr;
779 return (int)tls1_1_multi_block_encrypt(key,param->out,param->inp,
780 param->len,param->interleave/4);
782 case EVP_CTRL_TLS1_1_MULTIBLOCK_DECRYPT:
789 static EVP_CIPHER aesni_128_cbc_hmac_sha256_cipher =
791 #ifdef NID_aes_128_cbc_hmac_sha256
792 NID_aes_128_cbc_hmac_sha256,
797 EVP_CIPH_CBC_MODE|EVP_CIPH_FLAG_DEFAULT_ASN1|
798 EVP_CIPH_FLAG_AEAD_CIPHER|EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK,
799 aesni_cbc_hmac_sha256_init_key,
800 aesni_cbc_hmac_sha256_cipher,
802 sizeof(EVP_AES_HMAC_SHA256),
803 EVP_CIPH_FLAG_DEFAULT_ASN1?NULL:EVP_CIPHER_set_asn1_iv,
804 EVP_CIPH_FLAG_DEFAULT_ASN1?NULL:EVP_CIPHER_get_asn1_iv,
805 aesni_cbc_hmac_sha256_ctrl,
809 static EVP_CIPHER aesni_256_cbc_hmac_sha256_cipher =
811 #ifdef NID_aes_256_cbc_hmac_sha256
812 NID_aes_256_cbc_hmac_sha256,
817 EVP_CIPH_CBC_MODE|EVP_CIPH_FLAG_DEFAULT_ASN1|
818 EVP_CIPH_FLAG_AEAD_CIPHER|EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK,
819 aesni_cbc_hmac_sha256_init_key,
820 aesni_cbc_hmac_sha256_cipher,
822 sizeof(EVP_AES_HMAC_SHA256),
823 EVP_CIPH_FLAG_DEFAULT_ASN1?NULL:EVP_CIPHER_set_asn1_iv,
824 EVP_CIPH_FLAG_DEFAULT_ASN1?NULL:EVP_CIPHER_get_asn1_iv,
825 aesni_cbc_hmac_sha256_ctrl,
829 const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha256(void)
831 return((OPENSSL_ia32cap_P[1]&AESNI_CAPABLE) &&
832 aesni_cbc_sha256_enc(NULL,NULL,0,NULL,NULL,NULL,NULL) ?
833 &aesni_128_cbc_hmac_sha256_cipher:NULL);
836 const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha256(void)
838 return((OPENSSL_ia32cap_P[1]&AESNI_CAPABLE) &&
839 aesni_cbc_sha256_enc(NULL,NULL,0,NULL,NULL,NULL,NULL)?
840 &aesni_256_cbc_hmac_sha256_cipher:NULL);
843 const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha256(void)
847 const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha256(void)