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
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
|
/*
* Copyright 1995-2018 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 <stdio.h>
#include "internal/cryptlib.h"
#include <openssl/evp.h>
#include <openssl/objects.h>
#include <openssl/sha.h>
#include <openssl/rsa.h>
#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 update224(EVP_MD_CTX *ctx, const void *data, size_t count)
{
return SHA224_Update(EVP_MD_CTX_md_data(ctx), data, count);
}
static int final224(EVP_MD_CTX *ctx, unsigned char *md)
{
return SHA224_Final(md, EVP_MD_CTX_md_data(ctx));
}
static int init256(EVP_MD_CTX *ctx)
{
return SHA256_Init(EVP_MD_CTX_md_data(ctx));
}
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,
update224,
final224,
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 update384(EVP_MD_CTX *ctx, const void *data, size_t count)
{
return SHA384_Update(EVP_MD_CTX_md_data(ctx), data, count);
}
static int final384(EVP_MD_CTX *ctx, unsigned char *md)
{
return SHA384_Final(md, 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,
update384,
final384,
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);
}
|
