| /* ==================================================================== |
| * Copyright (c) 2011-2013 The OpenSSL Project. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. All advertising materials mentioning features or use of this |
| * software must display the following acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" |
| * |
| * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to |
| * endorse or promote products derived from this software without |
| * prior written permission. For written permission, please contact |
| * licensing@OpenSSL.org. |
| * |
| * 5. Products derived from this software may not be called "OpenSSL" |
| * nor may "OpenSSL" appear in their names without prior written |
| * permission of the OpenSSL Project. |
| * |
| * 6. Redistributions of any form whatsoever must retain the following |
| * acknowledgment: |
| * "This product includes software developed by the OpenSSL Project |
| * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY |
| * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, |
| * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED |
| * OF THE POSSIBILITY OF SUCH DAMAGE. |
| * ==================================================================== |
| */ |
| |
| #include <openssl/opensslconf.h> |
| |
| #include <openssl/opensslconf.h> |
| #if !defined(OPENSSL_SYS_STARBOARD) |
| #include <stdio.h> |
| #include <string.h> |
| #endif // !defined(OPENSSL_SYS_STARBOARD) |
| |
| #if !defined(OPENSSL_NO_AES) && !defined(OPENSSL_NO_SHA1) |
| |
| # include <openssl/evp.h> |
| # include <openssl/objects.h> |
| # include <openssl/aes.h> |
| # include <openssl/sha.h> |
| # include "evp_locl.h" |
| |
| # ifndef EVP_CIPH_FLAG_AEAD_CIPHER |
| # define EVP_CIPH_FLAG_AEAD_CIPHER 0x200000 |
| # define EVP_CTRL_AEAD_TLS1_AAD 0x16 |
| # define EVP_CTRL_AEAD_SET_MAC_KEY 0x17 |
| # endif |
| |
| # if !defined(EVP_CIPH_FLAG_DEFAULT_ASN1) |
| # define EVP_CIPH_FLAG_DEFAULT_ASN1 0 |
| # endif |
| |
| # define TLS1_1_VERSION 0x0302 |
| |
| typedef struct { |
| AES_KEY ks; |
| SHA_CTX head, tail, md; |
| size_t payload_length; /* AAD length in decrypt case */ |
| union { |
| unsigned int tls_ver; |
| unsigned char tls_aad[16]; /* 13 used */ |
| } aux; |
| } EVP_AES_HMAC_SHA1; |
| |
| # define NO_PAYLOAD_LENGTH ((size_t)-1) |
| |
| # if defined(AES_ASM) && ( \ |
| defined(__x86_64) || defined(__x86_64__) || \ |
| defined(_M_AMD64) || defined(_M_X64) || \ |
| defined(__INTEL__) ) |
| |
| # if defined(__GNUC__) && __GNUC__>=2 && !defined(PEDANTIC) |
| # define BSWAP(x) ({ unsigned int r=(x); asm ("bswapl %0":"=r"(r):"0"(r)); r; }) |
| # endif |
| |
| extern unsigned int OPENSSL_ia32cap_P[2]; |
| # define AESNI_CAPABLE (1<<(57-32)) |
| |
| int aesni_set_encrypt_key(const unsigned char *userKey, int bits, |
| AES_KEY *key); |
| int aesni_set_decrypt_key(const unsigned char *userKey, int bits, |
| AES_KEY *key); |
| |
| void aesni_cbc_encrypt(const unsigned char *in, |
| unsigned char *out, |
| size_t length, |
| const AES_KEY *key, unsigned char *ivec, int enc); |
| |
| void aesni_cbc_sha1_enc(const void *inp, void *out, size_t blocks, |
| const AES_KEY *key, unsigned char iv[16], |
| SHA_CTX *ctx, const void *in0); |
| |
| # define data(ctx) ((EVP_AES_HMAC_SHA1 *)(ctx)->cipher_data) |
| |
| static int aesni_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx, |
| const unsigned char *inkey, |
| const unsigned char *iv, int enc) |
| { |
| EVP_AES_HMAC_SHA1 *key = data(ctx); |
| int ret; |
| |
| if (enc) |
| ret = aesni_set_encrypt_key(inkey, ctx->key_len * 8, &key->ks); |
| else |
| ret = aesni_set_decrypt_key(inkey, ctx->key_len * 8, &key->ks); |
| |
| SHA1_Init(&key->head); /* handy when benchmarking */ |
| key->tail = key->head; |
| key->md = key->head; |
| |
| key->payload_length = NO_PAYLOAD_LENGTH; |
| |
| return ret < 0 ? 0 : 1; |
| } |
| |
| # define STITCHED_CALL |
| |
| # if !defined(STITCHED_CALL) |
| # define aes_off 0 |
| # endif |
| |
| void sha1_block_data_order(void *c, const void *p, size_t len); |
| |
| static void sha1_update(SHA_CTX *c, const void *data, size_t len) |
| { |
| const unsigned char *ptr = data; |
| size_t res; |
| |
| if ((res = c->num)) { |
| res = SHA_CBLOCK - res; |
| if (len < res) |
| res = len; |
| SHA1_Update(c, ptr, res); |
| ptr += res; |
| len -= res; |
| } |
| |
| res = len % SHA_CBLOCK; |
| len -= res; |
| |
| if (len) { |
| sha1_block_data_order(c, ptr, len / SHA_CBLOCK); |
| |
| ptr += len; |
| c->Nh += len >> 29; |
| c->Nl += len <<= 3; |
| if (c->Nl < (unsigned int)len) |
| c->Nh++; |
| } |
| |
| if (res) |
| SHA1_Update(c, ptr, res); |
| } |
| |
| # ifdef SHA1_Update |
| # undef SHA1_Update |
| # endif |
| # define SHA1_Update sha1_update |
| |
| static int aesni_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, |
| const unsigned char *in, size_t len) |
| { |
| EVP_AES_HMAC_SHA1 *key = data(ctx); |
| unsigned int l; |
| size_t plen = key->payload_length, iv = 0, /* explicit IV in TLS 1.1 and |
| * later */ |
| sha_off = 0; |
| # if defined(STITCHED_CALL) |
| size_t aes_off = 0, blocks; |
| |
| sha_off = SHA_CBLOCK - key->md.num; |
| # endif |
| |
| key->payload_length = NO_PAYLOAD_LENGTH; |
| |
| if (len % AES_BLOCK_SIZE) |
| return 0; |
| |
| if (ctx->encrypt) { |
| if (plen == NO_PAYLOAD_LENGTH) |
| plen = len; |
| else if (len != |
| ((plen + SHA_DIGEST_LENGTH + |
| AES_BLOCK_SIZE) & -AES_BLOCK_SIZE)) |
| return 0; |
| else if (key->aux.tls_ver >= TLS1_1_VERSION) |
| iv = AES_BLOCK_SIZE; |
| |
| # if defined(STITCHED_CALL) |
| if (plen > (sha_off + iv) |
| && (blocks = (plen - (sha_off + iv)) / SHA_CBLOCK)) { |
| SHA1_Update(&key->md, in + iv, sha_off); |
| |
| aesni_cbc_sha1_enc(in, out, blocks, &key->ks, |
| ctx->iv, &key->md, in + iv + sha_off); |
| blocks *= SHA_CBLOCK; |
| aes_off += blocks; |
| sha_off += blocks; |
| key->md.Nh += blocks >> 29; |
| key->md.Nl += blocks <<= 3; |
| if (key->md.Nl < (unsigned int)blocks) |
| key->md.Nh++; |
| } else { |
| sha_off = 0; |
| } |
| # endif |
| sha_off += iv; |
| SHA1_Update(&key->md, in + sha_off, plen - sha_off); |
| |
| if (plen != len) { /* "TLS" mode of operation */ |
| if (in != out) |
| OPENSSL_port_memcpy(out + aes_off, in + aes_off, plen - aes_off); |
| |
| /* calculate HMAC and append it to payload */ |
| SHA1_Final(out + plen, &key->md); |
| key->md = key->tail; |
| SHA1_Update(&key->md, out + plen, SHA_DIGEST_LENGTH); |
| SHA1_Final(out + plen, &key->md); |
| |
| /* pad the payload|hmac */ |
| plen += SHA_DIGEST_LENGTH; |
| for (l = len - plen - 1; plen < len; plen++) |
| out[plen] = l; |
| /* encrypt HMAC|padding at once */ |
| aesni_cbc_encrypt(out + aes_off, out + aes_off, len - aes_off, |
| &key->ks, ctx->iv, 1); |
| } else { |
| aesni_cbc_encrypt(in + aes_off, out + aes_off, len - aes_off, |
| &key->ks, ctx->iv, 1); |
| } |
| } else { |
| union { |
| unsigned int u[SHA_DIGEST_LENGTH / sizeof(unsigned int)]; |
| unsigned char c[32 + SHA_DIGEST_LENGTH]; |
| } mac, *pmac; |
| |
| /* arrange cache line alignment */ |
| pmac = (void *)(((size_t)mac.c + 31) & ((size_t)0 - 32)); |
| |
| /* decrypt HMAC|padding at once */ |
| aesni_cbc_encrypt(in, out, len, &key->ks, ctx->iv, 0); |
| |
| if (plen) { /* "TLS" mode of operation */ |
| size_t inp_len, mask, j, i; |
| unsigned int res, maxpad, pad, bitlen; |
| int ret = 1; |
| union { |
| unsigned int u[SHA_LBLOCK]; |
| unsigned char c[SHA_CBLOCK]; |
| } *data = (void *)key->md.data; |
| |
| if ((key->aux.tls_aad[plen - 4] << 8 | key->aux.tls_aad[plen - 3]) |
| >= TLS1_1_VERSION) |
| iv = AES_BLOCK_SIZE; |
| |
| if (len < (iv + SHA_DIGEST_LENGTH + 1)) |
| return 0; |
| |
| /* omit explicit iv */ |
| out += iv; |
| len -= iv; |
| |
| /* figure out payload length */ |
| pad = out[len - 1]; |
| maxpad = len - (SHA_DIGEST_LENGTH + 1); |
| maxpad |= (255 - maxpad) >> (sizeof(maxpad) * 8 - 8); |
| maxpad &= 255; |
| |
| inp_len = len - (SHA_DIGEST_LENGTH + pad + 1); |
| mask = (0 - ((inp_len - len) >> (sizeof(inp_len) * 8 - 1))); |
| inp_len &= mask; |
| ret &= (int)mask; |
| |
| key->aux.tls_aad[plen - 2] = inp_len >> 8; |
| key->aux.tls_aad[plen - 1] = inp_len; |
| |
| /* calculate HMAC */ |
| key->md = key->head; |
| SHA1_Update(&key->md, key->aux.tls_aad, plen); |
| |
| # if 1 |
| len -= SHA_DIGEST_LENGTH; /* amend mac */ |
| if (len >= (256 + SHA_CBLOCK)) { |
| j = (len - (256 + SHA_CBLOCK)) & (0 - SHA_CBLOCK); |
| j += SHA_CBLOCK - key->md.num; |
| SHA1_Update(&key->md, out, j); |
| out += j; |
| len -= j; |
| inp_len -= j; |
| } |
| |
| /* but pretend as if we hashed padded payload */ |
| bitlen = key->md.Nl + (inp_len << 3); /* at most 18 bits */ |
| # ifdef BSWAP |
| bitlen = BSWAP(bitlen); |
| # else |
| mac.c[0] = 0; |
| mac.c[1] = (unsigned char)(bitlen >> 16); |
| mac.c[2] = (unsigned char)(bitlen >> 8); |
| mac.c[3] = (unsigned char)bitlen; |
| bitlen = mac.u[0]; |
| # endif |
| |
| pmac->u[0] = 0; |
| pmac->u[1] = 0; |
| pmac->u[2] = 0; |
| pmac->u[3] = 0; |
| pmac->u[4] = 0; |
| |
| for (res = key->md.num, j = 0; j < len; j++) { |
| size_t c = out[j]; |
| mask = (j - inp_len) >> (sizeof(j) * 8 - 8); |
| c &= mask; |
| c |= 0x80 & ~mask & ~((inp_len - j) >> (sizeof(j) * 8 - 8)); |
| data->c[res++] = (unsigned char)c; |
| |
| if (res != SHA_CBLOCK) |
| continue; |
| |
| /* j is not incremented yet */ |
| mask = 0 - ((inp_len + 7 - j) >> (sizeof(j) * 8 - 1)); |
| data->u[SHA_LBLOCK - 1] |= bitlen & mask; |
| sha1_block_data_order(&key->md, data, 1); |
| mask &= 0 - ((j - inp_len - 72) >> (sizeof(j) * 8 - 1)); |
| pmac->u[0] |= key->md.h0 & mask; |
| pmac->u[1] |= key->md.h1 & mask; |
| pmac->u[2] |= key->md.h2 & mask; |
| pmac->u[3] |= key->md.h3 & mask; |
| pmac->u[4] |= key->md.h4 & mask; |
| res = 0; |
| } |
| |
| for (i = res; i < SHA_CBLOCK; i++, j++) |
| data->c[i] = 0; |
| |
| if (res > SHA_CBLOCK - 8) { |
| mask = 0 - ((inp_len + 8 - j) >> (sizeof(j) * 8 - 1)); |
| data->u[SHA_LBLOCK - 1] |= bitlen & mask; |
| sha1_block_data_order(&key->md, data, 1); |
| mask &= 0 - ((j - inp_len - 73) >> (sizeof(j) * 8 - 1)); |
| pmac->u[0] |= key->md.h0 & mask; |
| pmac->u[1] |= key->md.h1 & mask; |
| pmac->u[2] |= key->md.h2 & mask; |
| pmac->u[3] |= key->md.h3 & mask; |
| pmac->u[4] |= key->md.h4 & mask; |
| |
| OPENSSL_port_memset(data, 0, SHA_CBLOCK); |
| j += 64; |
| } |
| data->u[SHA_LBLOCK - 1] = bitlen; |
| sha1_block_data_order(&key->md, data, 1); |
| mask = 0 - ((j - inp_len - 73) >> (sizeof(j) * 8 - 1)); |
| pmac->u[0] |= key->md.h0 & mask; |
| pmac->u[1] |= key->md.h1 & mask; |
| pmac->u[2] |= key->md.h2 & mask; |
| pmac->u[3] |= key->md.h3 & mask; |
| pmac->u[4] |= key->md.h4 & mask; |
| |
| # ifdef BSWAP |
| pmac->u[0] = BSWAP(pmac->u[0]); |
| pmac->u[1] = BSWAP(pmac->u[1]); |
| pmac->u[2] = BSWAP(pmac->u[2]); |
| pmac->u[3] = BSWAP(pmac->u[3]); |
| pmac->u[4] = BSWAP(pmac->u[4]); |
| # else |
| for (i = 0; i < 5; i++) { |
| res = pmac->u[i]; |
| pmac->c[4 * i + 0] = (unsigned char)(res >> 24); |
| pmac->c[4 * i + 1] = (unsigned char)(res >> 16); |
| pmac->c[4 * i + 2] = (unsigned char)(res >> 8); |
| pmac->c[4 * i + 3] = (unsigned char)res; |
| } |
| # endif |
| len += SHA_DIGEST_LENGTH; |
| # else |
| SHA1_Update(&key->md, out, inp_len); |
| res = key->md.num; |
| SHA1_Final(pmac->c, &key->md); |
| |
| { |
| unsigned int inp_blocks, pad_blocks; |
| |
| /* but pretend as if we hashed padded payload */ |
| inp_blocks = |
| 1 + ((SHA_CBLOCK - 9 - res) >> (sizeof(res) * 8 - 1)); |
| res += (unsigned int)(len - inp_len); |
| pad_blocks = res / SHA_CBLOCK; |
| res %= SHA_CBLOCK; |
| pad_blocks += |
| 1 + ((SHA_CBLOCK - 9 - res) >> (sizeof(res) * 8 - 1)); |
| for (; inp_blocks < pad_blocks; inp_blocks++) |
| sha1_block_data_order(&key->md, data, 1); |
| } |
| # endif |
| key->md = key->tail; |
| SHA1_Update(&key->md, pmac->c, SHA_DIGEST_LENGTH); |
| SHA1_Final(pmac->c, &key->md); |
| |
| /* verify HMAC */ |
| out += inp_len; |
| len -= inp_len; |
| # if 1 |
| { |
| unsigned char *p = out + len - 1 - maxpad - SHA_DIGEST_LENGTH; |
| size_t off = out - p; |
| unsigned int c, cmask; |
| |
| maxpad += SHA_DIGEST_LENGTH; |
| for (res = 0, i = 0, j = 0; j < maxpad; j++) { |
| c = p[j]; |
| cmask = |
| ((int)(j - off - SHA_DIGEST_LENGTH)) >> (sizeof(int) * |
| 8 - 1); |
| res |= (c ^ pad) & ~cmask; /* ... and padding */ |
| cmask &= ((int)(off - 1 - j)) >> (sizeof(int) * 8 - 1); |
| res |= (c ^ pmac->c[i]) & cmask; |
| i += 1 & cmask; |
| } |
| maxpad -= SHA_DIGEST_LENGTH; |
| |
| res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1)); |
| ret &= (int)~res; |
| } |
| # else |
| for (res = 0, i = 0; i < SHA_DIGEST_LENGTH; i++) |
| res |= out[i] ^ pmac->c[i]; |
| res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1)); |
| ret &= (int)~res; |
| |
| /* verify padding */ |
| pad = (pad & ~res) | (maxpad & res); |
| out = out + len - 1 - pad; |
| for (res = 0, i = 0; i < pad; i++) |
| res |= out[i] ^ pad; |
| |
| res = (0 - res) >> (sizeof(res) * 8 - 1); |
| ret &= (int)~res; |
| # endif |
| return ret; |
| } else { |
| SHA1_Update(&key->md, out, len); |
| } |
| } |
| |
| return 1; |
| } |
| |
| static int aesni_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, |
| void *ptr) |
| { |
| EVP_AES_HMAC_SHA1 *key = data(ctx); |
| |
| switch (type) { |
| case EVP_CTRL_AEAD_SET_MAC_KEY: |
| { |
| unsigned int i; |
| unsigned char hmac_key[64]; |
| |
| OPENSSL_port_memset(hmac_key, 0, sizeof(hmac_key)); |
| |
| if (arg > (int)sizeof(hmac_key)) { |
| SHA1_Init(&key->head); |
| SHA1_Update(&key->head, ptr, arg); |
| SHA1_Final(hmac_key, &key->head); |
| } else { |
| OPENSSL_port_memcpy(hmac_key, ptr, arg); |
| } |
| |
| for (i = 0; i < sizeof(hmac_key); i++) |
| hmac_key[i] ^= 0x36; /* ipad */ |
| SHA1_Init(&key->head); |
| SHA1_Update(&key->head, hmac_key, sizeof(hmac_key)); |
| |
| for (i = 0; i < sizeof(hmac_key); i++) |
| hmac_key[i] ^= 0x36 ^ 0x5c; /* opad */ |
| SHA1_Init(&key->tail); |
| SHA1_Update(&key->tail, hmac_key, sizeof(hmac_key)); |
| |
| OPENSSL_cleanse(hmac_key, sizeof(hmac_key)); |
| |
| return 1; |
| } |
| case EVP_CTRL_AEAD_TLS1_AAD: |
| { |
| unsigned char *p = ptr; |
| unsigned int len; |
| |
| if (arg != EVP_AEAD_TLS1_AAD_LEN) |
| return -1; |
| |
| len = p[arg - 2] << 8 | p[arg - 1]; |
| |
| if (ctx->encrypt) { |
| key->payload_length = len; |
| if ((key->aux.tls_ver = |
| p[arg - 4] << 8 | p[arg - 3]) >= TLS1_1_VERSION) { |
| len -= AES_BLOCK_SIZE; |
| p[arg - 2] = len >> 8; |
| p[arg - 1] = len; |
| } |
| key->md = key->head; |
| SHA1_Update(&key->md, p, arg); |
| |
| return (int)(((len + SHA_DIGEST_LENGTH + |
| AES_BLOCK_SIZE) & -AES_BLOCK_SIZE) |
| - len); |
| } else { |
| OPENSSL_port_memcpy(key->aux.tls_aad, ptr, arg); |
| key->payload_length = arg; |
| |
| return SHA_DIGEST_LENGTH; |
| } |
| } |
| default: |
| return -1; |
| } |
| } |
| |
| static EVP_CIPHER aesni_128_cbc_hmac_sha1_cipher = { |
| # ifdef NID_aes_128_cbc_hmac_sha1 |
| NID_aes_128_cbc_hmac_sha1, |
| # else |
| NID_undef, |
| # endif |
| 16, 16, 16, |
| EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 | |
| EVP_CIPH_FLAG_AEAD_CIPHER, |
| aesni_cbc_hmac_sha1_init_key, |
| aesni_cbc_hmac_sha1_cipher, |
| NULL, |
| sizeof(EVP_AES_HMAC_SHA1), |
| EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_set_asn1_iv, |
| EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_get_asn1_iv, |
| aesni_cbc_hmac_sha1_ctrl, |
| NULL |
| }; |
| |
| static EVP_CIPHER aesni_256_cbc_hmac_sha1_cipher = { |
| # ifdef NID_aes_256_cbc_hmac_sha1 |
| NID_aes_256_cbc_hmac_sha1, |
| # else |
| NID_undef, |
| # endif |
| 16, 32, 16, |
| EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 | |
| EVP_CIPH_FLAG_AEAD_CIPHER, |
| aesni_cbc_hmac_sha1_init_key, |
| aesni_cbc_hmac_sha1_cipher, |
| NULL, |
| sizeof(EVP_AES_HMAC_SHA1), |
| EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_set_asn1_iv, |
| EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_get_asn1_iv, |
| aesni_cbc_hmac_sha1_ctrl, |
| NULL |
| }; |
| |
| const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void) |
| { |
| return (OPENSSL_ia32cap_P[1] & AESNI_CAPABLE ? |
| &aesni_128_cbc_hmac_sha1_cipher : NULL); |
| } |
| |
| const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha1(void) |
| { |
| return (OPENSSL_ia32cap_P[1] & AESNI_CAPABLE ? |
| &aesni_256_cbc_hmac_sha1_cipher : NULL); |
| } |
| # else |
| const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void) |
| { |
| return NULL; |
| } |
| |
| const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha1(void) |
| { |
| return NULL; |
| } |
| # endif |
| #endif |
