1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
|
/*
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project.
*/
/* ====================================================================
* Copyright (c) 2015 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.
* ====================================================================
*/
#if !defined(OPENSSL_NO_MD5) && !defined(OPENSSL_NO_SHA1)
# include <openssl/evp.h>
# include <openssl/objects.h>
# include <openssl/x509.h>
# include <openssl/md5.h>
# include <openssl/sha.h>
# include "internal/cryptlib.h"
# include "internal/evp_int.h"
# ifndef OPENSSL_NO_RSA
# include <openssl/rsa.h>
# endif
struct md5_sha1_ctx {
MD5_CTX md5;
SHA_CTX sha1;
};
static int init(EVP_MD_CTX *ctx)
{
struct md5_sha1_ctx *mctx = EVP_MD_CTX_md_data(ctx);
if (!MD5_Init(&mctx->md5))
return 0;
return SHA1_Init(&mctx->sha1);
}
static int update(EVP_MD_CTX *ctx, const void *data, size_t count)
{
struct md5_sha1_ctx *mctx = EVP_MD_CTX_md_data(ctx);
if (!MD5_Update(&mctx->md5, data, count))
return 0;
return SHA1_Update(&mctx->sha1, data, count);
}
static int final(EVP_MD_CTX *ctx, unsigned char *md)
{
struct md5_sha1_ctx *mctx = EVP_MD_CTX_md_data(ctx);
if (!MD5_Final(md, &mctx->md5))
return 0;
return SHA1_Final(md + MD5_DIGEST_LENGTH, &mctx->sha1);
}
static int ctrl(EVP_MD_CTX *ctx, int cmd, int mslen, void *ms)
{
unsigned char padtmp[48];
unsigned char md5tmp[MD5_DIGEST_LENGTH];
unsigned char sha1tmp[SHA_DIGEST_LENGTH];
struct md5_sha1_ctx *mctx = EVP_MD_CTX_md_data(ctx);
if (cmd != EVP_CTRL_SSL3_MASTER_SECRET)
return 0;
/* 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 (update(ctx, ms, mslen) <= 0)
return 0;
/* Set padtmp to pad_1 value */
memset(padtmp, 0x36, sizeof(padtmp));
if (!MD5_Update(&mctx->md5, padtmp, sizeof(padtmp)))
return 0;
if (!MD5_Final(md5tmp, &mctx->md5))
return 0;
if (!SHA1_Update(&mctx->sha1, padtmp, 40))
return 0;
if (!SHA1_Final(sha1tmp, &mctx->sha1))
return 0;
/* Reinitialise context */
if (!init(ctx))
return 0;
if (update(ctx, ms, mslen) <= 0)
return 0;
/* Set padtmp to pad_2 value */
memset(padtmp, 0x5c, sizeof(padtmp));
if (!MD5_Update(&mctx->md5, padtmp, sizeof(padtmp)))
return 0;
if (!MD5_Update(&mctx->md5, md5tmp, sizeof(md5tmp)))
return 0;
if (!SHA1_Update(&mctx->sha1, padtmp, 40))
return 0;
if (!SHA1_Update(&mctx->sha1, sha1tmp, sizeof(sha1tmp)))
return 0;
/* Now when ctx is finalised it will return the SSL v3 hash value */
OPENSSL_cleanse(md5tmp, sizeof(md5tmp));
OPENSSL_cleanse(sha1tmp, sizeof(sha1tmp));
return 1;
}
static const EVP_MD md5_sha1_md = {
NID_md5_sha1,
NID_md5_sha1,
MD5_DIGEST_LENGTH + SHA_DIGEST_LENGTH,
0,
init,
update,
final,
NULL,
NULL,
MD5_CBLOCK,
sizeof(EVP_MD *) + sizeof(struct md5_sha1_ctx),
ctrl
};
const EVP_MD *EVP_md5_sha1(void)
{
return &md5_sha1_md;
}
#endif
|