X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fevp%2Fm_sha1.c;h=8f30077a4aa32d6189c8c28256de1f428eb17253;hp=30037ffcd81712861794f00ceaa17e7648436b8b;hb=2198b3a55de681e1f3c23edb0586afe13f438051;hpb=b7896b3cb86d80206af14a14d69b0717786f2729 diff --git a/crypto/evp/m_sha1.c b/crypto/evp/m_sha1.c index 30037ffcd8..8f30077a4a 100644 --- a/crypto/evp/m_sha1.c +++ b/crypto/evp/m_sha1.c @@ -1,79 +1,233 @@ -/* crypto/evp/m_sha1.c */ -/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) - * All rights reserved. +/* + * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. * - * This package is an SSL implementation written - * by Eric Young (eay@cryptsoft.com). - * The implementation was written so as to conform with Netscapes SSL. - * - * This library is free for commercial and non-commercial use as long as - * the following conditions are aheared to. The following conditions - * apply to all code found in this distribution, be it the RC4, RSA, - * lhash, DES, etc., code; not just the SSL code. The SSL documentation - * included with this distribution is covered by the same copyright terms - * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * - * Copyright remains Eric Young's, and as such any Copyright notices in - * the code are not to be removed. - * If this package is used in a product, Eric Young should be given attribution - * as the author of the parts of the library used. - * This can be in the form of a textual message at program startup or - * in documentation (online or textual) provided with the package. - * - * 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 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 acknowledgement: - * "This product includes cryptographic software written by - * Eric Young (eay@cryptsoft.com)" - * The word 'cryptographic' can be left out if the rouines from the library - * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from - * the apps directory (application code) you must include an acknowledgement: - * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * - * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND - * ANY EXPRESS 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 AUTHOR OR 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. - * - * The licence and distribution terms for any publically available version or - * derivative of this code cannot be changed. i.e. this code cannot simply be - * copied and put under another distribution licence - * [including the GNU Public Licence.] + * 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 -#include "cryptlib.h" -#include "evp.h" -#include "objects.h" -#include "x509.h" - -static EVP_MD sha1_md= - { - NID_sha1, - NID_sha1WithRSAEncryption, - SHA_DIGEST_LENGTH, - SHA1_Init, - SHA1_Update, - SHA1_Final, - EVP_PKEY_RSA_method, - }; - -EVP_MD *EVP_sha1() - { - return(&sha1_md); - } +#include "internal/cryptlib.h" + +#include +#include +#include +#include +#include "internal/evp_int.h" + +static int init(EVP_MD_CTX *ctx) +{ + return SHA1_Init(EVP_MD_CTX_md_data(ctx)); +} + +static int update(EVP_MD_CTX *ctx, const void *data, size_t count) +{ + return SHA1_Update(EVP_MD_CTX_md_data(ctx), data, count); +} + +static int final(EVP_MD_CTX *ctx, unsigned char *md) +{ + return SHA1_Final(md, EVP_MD_CTX_md_data(ctx)); +} + +static int ctrl(EVP_MD_CTX *ctx, int cmd, int mslen, void *ms) +{ + unsigned char padtmp[40]; + unsigned char sha1tmp[SHA_DIGEST_LENGTH]; + + SHA_CTX *sha1; + + if (cmd != EVP_CTRL_SSL3_MASTER_SECRET) + return -2; + + if (ctx == NULL) + return 0; + + sha1 = EVP_MD_CTX_md_data(ctx); + + /* SSLv3 client auth handling: see RFC-6101 5.6.8 */ + if (mslen != 48) + return 0; + + /* At this point hash contains all handshake messages, update + * with master secret and pad_1. + */ + + if (SHA1_Update(sha1, ms, mslen) <= 0) + return 0; + + /* Set padtmp to pad_1 value */ + memset(padtmp, 0x36, sizeof(padtmp)); + + if (!SHA1_Update(sha1, padtmp, sizeof(padtmp))) + return 0; + + if (!SHA1_Final(sha1tmp, sha1)) + return 0; + + /* Reinitialise context */ + + if (!SHA1_Init(sha1)) + return 0; + + if (SHA1_Update(sha1, ms, mslen) <= 0) + return 0; + + /* Set padtmp to pad_2 value */ + memset(padtmp, 0x5c, sizeof(padtmp)); + + if (!SHA1_Update(sha1, padtmp, sizeof(padtmp))) + return 0; + + if (!SHA1_Update(sha1, sha1tmp, sizeof(sha1tmp))) + return 0; + + /* Now when ctx is finalised it will return the SSL v3 hash value */ + OPENSSL_cleanse(sha1tmp, sizeof(sha1tmp)); + + return 1; + +} + +static const EVP_MD sha1_md = { + NID_sha1, + NID_sha1WithRSAEncryption, + SHA_DIGEST_LENGTH, + EVP_MD_FLAG_DIGALGID_ABSENT, + init, + update, + final, + NULL, + NULL, + SHA_CBLOCK, + sizeof(EVP_MD *) + sizeof(SHA_CTX), + ctrl +}; + +const EVP_MD *EVP_sha1(void) +{ + return (&sha1_md); +} + +static int init224(EVP_MD_CTX *ctx) +{ + return SHA224_Init(EVP_MD_CTX_md_data(ctx)); +} + +static int init256(EVP_MD_CTX *ctx) +{ + return SHA256_Init(EVP_MD_CTX_md_data(ctx)); +} + +/* + * Even though there're separate SHA224_[Update|Final], we call + * SHA256 functions even in SHA224 context. This is what happens + * there anyway, so we can spare few CPU cycles:-) + */ +static int update256(EVP_MD_CTX *ctx, const void *data, size_t count) +{ + return SHA256_Update(EVP_MD_CTX_md_data(ctx), data, count); +} + +static int final256(EVP_MD_CTX *ctx, unsigned char *md) +{ + return SHA256_Final(md, EVP_MD_CTX_md_data(ctx)); +} + +static const EVP_MD sha224_md = { + NID_sha224, + NID_sha224WithRSAEncryption, + SHA224_DIGEST_LENGTH, + EVP_MD_FLAG_DIGALGID_ABSENT, + init224, + update256, + final256, + NULL, + NULL, + SHA256_CBLOCK, + sizeof(EVP_MD *) + sizeof(SHA256_CTX), +}; + +const EVP_MD *EVP_sha224(void) +{ + return (&sha224_md); +} + +static const EVP_MD sha256_md = { + NID_sha256, + NID_sha256WithRSAEncryption, + SHA256_DIGEST_LENGTH, + EVP_MD_FLAG_DIGALGID_ABSENT, + init256, + update256, + final256, + NULL, + NULL, + SHA256_CBLOCK, + sizeof(EVP_MD *) + sizeof(SHA256_CTX), +}; + +const EVP_MD *EVP_sha256(void) +{ + return (&sha256_md); +} + +static int init384(EVP_MD_CTX *ctx) +{ + return SHA384_Init(EVP_MD_CTX_md_data(ctx)); +} + +static int init512(EVP_MD_CTX *ctx) +{ + return SHA512_Init(EVP_MD_CTX_md_data(ctx)); +} + +/* See comment in SHA224/256 section */ +static int update512(EVP_MD_CTX *ctx, const void *data, size_t count) +{ + return SHA512_Update(EVP_MD_CTX_md_data(ctx), data, count); +} + +static int final512(EVP_MD_CTX *ctx, unsigned char *md) +{ + return SHA512_Final(md, EVP_MD_CTX_md_data(ctx)); +} + +static const EVP_MD sha384_md = { + NID_sha384, + NID_sha384WithRSAEncryption, + SHA384_DIGEST_LENGTH, + EVP_MD_FLAG_DIGALGID_ABSENT, + init384, + update512, + final512, + NULL, + NULL, + SHA512_CBLOCK, + sizeof(EVP_MD *) + sizeof(SHA512_CTX), +}; + +const EVP_MD *EVP_sha384(void) +{ + return (&sha384_md); +} + +static const EVP_MD sha512_md = { + NID_sha512, + NID_sha512WithRSAEncryption, + SHA512_DIGEST_LENGTH, + EVP_MD_FLAG_DIGALGID_ABSENT, + init512, + update512, + final512, + NULL, + NULL, + SHA512_CBLOCK, + sizeof(EVP_MD *) + sizeof(SHA512_CTX), +}; + +const EVP_MD *EVP_sha512(void) +{ + return (&sha512_md); +}