1 /* crypto/evp/m_md5_sha1.c */
3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
6 /* ====================================================================
7 * Copyright (c) 2015 The OpenSSL Project. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
35 * 6. Redistributions of any form whatsoever must retain the following
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
55 #if !defined(OPENSSL_NO_MD5) && !defined(OPENSSL_NO_SHA1)
57 # include <openssl/evp.h>
58 # include <openssl/objects.h>
59 # include <openssl/x509.h>
60 # include <openssl/md5.h>
61 # include <openssl/sha.h>
62 # include "internal/cryptlib.h"
63 # ifndef OPENSSL_NO_RSA
64 # include <openssl/rsa.h>
72 static int init(EVP_MD_CTX *ctx)
74 struct md5_sha1_ctx *mctx = ctx->md_data;
75 if (!MD5_Init(&mctx->md5))
77 return SHA1_Init(&mctx->sha1);
80 static int update(EVP_MD_CTX *ctx, const void *data, size_t count)
82 struct md5_sha1_ctx *mctx = ctx->md_data;
83 if (!MD5_Update(&mctx->md5, data, count))
85 return SHA1_Update(&mctx->sha1, data, count);
88 static int final(EVP_MD_CTX *ctx, unsigned char *md)
90 struct md5_sha1_ctx *mctx = ctx->md_data;
91 if (!MD5_Final(md, &mctx->md5))
93 return SHA1_Final(md + MD5_DIGEST_LENGTH, &mctx->sha1);
96 static int ctrl(EVP_MD_CTX *ctx, int cmd, int mslen, void *ms)
98 unsigned char padtmp[48];
99 unsigned char md5tmp[MD5_DIGEST_LENGTH];
100 unsigned char sha1tmp[SHA_DIGEST_LENGTH];
101 struct md5_sha1_ctx *mctx = ctx->md_data;
103 if (cmd != EVP_CTRL_SSL3_MASTER_SECRET)
106 /* SSLv3 client auth handling: see RFC-6101 5.6.8 */
110 /* At this point hash contains all handshake messages, update
111 * with master secret and pad_1.
114 if (update(ctx, ms, mslen) <= 0)
117 /* Set padtmp to pad_1 value */
118 memset(padtmp, 0x36, sizeof(padtmp));
120 if (!MD5_Update(&mctx->md5, padtmp, sizeof(padtmp)))
123 if (!MD5_Final(md5tmp, &mctx->md5))
126 if (!SHA1_Update(&mctx->sha1, padtmp, 40))
129 if (!SHA1_Final(sha1tmp, &mctx->sha1))
132 /* Reinitialise context */
137 if (update(ctx, ms, mslen) <= 0)
140 /* Set padtmp to pad_2 value */
141 memset(padtmp, 0x5c, sizeof(padtmp));
143 if (!MD5_Update(&mctx->md5, padtmp, sizeof(padtmp)))
146 if (!MD5_Update(&mctx->md5, md5tmp, sizeof(md5tmp)))
149 if (!SHA1_Update(&mctx->sha1, padtmp, 40))
152 if (!SHA1_Update(&mctx->sha1, sha1tmp, sizeof(sha1tmp)))
155 /* Now when ctx is finalised it will return the SSL v3 hash value */
157 OPENSSL_cleanse(md5tmp, sizeof(md5tmp));
158 OPENSSL_cleanse(sha1tmp, sizeof(sha1tmp));
164 static const EVP_MD md5_sha1_md = {
167 MD5_DIGEST_LENGTH + SHA_DIGEST_LENGTH,
176 sizeof(EVP_MD *) + sizeof(struct md5_sha1_ctx),
180 const EVP_MD *EVP_md5_sha1(void)