X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=ssl%2Fs3_cbc.c;h=7cdabbb761b39d231769758919594c55a33b837d;hp=177f6d736ff8f33b17975fcc8501b1b2545e5b56;hb=152d26461609ae36f329d6f48b2d0749e43834f3;hpb=5c649375dd756dcd0b0c81a14a04cd8e87f198c1 diff --git a/ssl/s3_cbc.c b/ssl/s3_cbc.c index 177f6d736f..7cdabbb761 100644 --- a/ssl/s3_cbc.c +++ b/ssl/s3_cbc.c @@ -1,56 +1,10 @@ -/* ssl/s3_cbc.c */ -/* ==================================================================== - * Copyright (c) 2012 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 - * openssl-core@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. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). +/* + * Copyright 2012-2016 The OpenSSL Project Authors. All Rights Reserved. * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ #include "internal/constant_time_locl.h" @@ -201,7 +155,7 @@ int ssl3_cbc_digest_record(const EVP_MD_CTX *ctx, unsigned char first_block[MAX_HASH_BLOCK_SIZE]; unsigned char mac_out[EVP_MAX_MD_SIZE]; unsigned i, j, md_out_size_u; - EVP_MD_CTX md_ctx; + EVP_MD_CTX *md_ctx = NULL; /* * mdLengthSize is the number of bytes in the length field that * terminates * the hash. @@ -497,34 +451,36 @@ int ssl3_cbc_digest_record(const EVP_MD_CTX *ctx, mac_out[j] |= block[j] & is_block_b; } - EVP_MD_CTX_init(&md_ctx); - if (EVP_DigestInit_ex(&md_ctx, ctx->digest, NULL /* engine */ ) <= 0) + md_ctx = EVP_MD_CTX_new(); + if (md_ctx == NULL) + goto err; + if (EVP_DigestInit_ex(md_ctx, EVP_MD_CTX_md(ctx), NULL /* engine */ ) <= 0) goto err; if (is_sslv3) { /* We repurpose |hmac_pad| to contain the SSLv3 pad2 block. */ memset(hmac_pad, 0x5c, sslv3_pad_length); - if (EVP_DigestUpdate(&md_ctx, mac_secret, mac_secret_length) <= 0 - || EVP_DigestUpdate(&md_ctx, hmac_pad, sslv3_pad_length) <= 0 - || EVP_DigestUpdate(&md_ctx, mac_out, md_size) <= 0) + if (EVP_DigestUpdate(md_ctx, mac_secret, mac_secret_length) <= 0 + || EVP_DigestUpdate(md_ctx, hmac_pad, sslv3_pad_length) <= 0 + || EVP_DigestUpdate(md_ctx, mac_out, md_size) <= 0) goto err; } else { /* Complete the HMAC in the standard manner. */ for (i = 0; i < md_block_size; i++) hmac_pad[i] ^= 0x6a; - if (EVP_DigestUpdate(&md_ctx, hmac_pad, md_block_size) <= 0 - || EVP_DigestUpdate(&md_ctx, mac_out, md_size) <= 0) + if (EVP_DigestUpdate(md_ctx, hmac_pad, md_block_size) <= 0 + || EVP_DigestUpdate(md_ctx, mac_out, md_size) <= 0) goto err; } - ret = EVP_DigestFinal(&md_ctx, md_out, &md_out_size_u); + ret = EVP_DigestFinal(md_ctx, md_out, &md_out_size_u); if (ret && md_out_size) *md_out_size = md_out_size_u; - EVP_MD_CTX_cleanup(&md_ctx); + EVP_MD_CTX_free(md_ctx); return 1; err: - EVP_MD_CTX_cleanup(&md_ctx); + EVP_MD_CTX_free(md_ctx); return 0; }