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
|
/* Copyright (c) 2012, Oracle and/or its affiliates.
Copyright (c) 2014, SkySQL Ab.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA */
/**
@file
@brief
Wrapper functions for OpenSSL and YaSSL. Also provides a Compatibility layer
to make available YaSSL's MD5 implementation.
*/
#include <my_global.h>
#include <my_md5.h>
#include <stdarg.h>
#if defined(HAVE_YASSL)
#include "md5.hpp"
typedef TaoCrypt::MD5 MD5_CONTEXT;
static void md5_init(MD5_CONTEXT *context)
{
context= new(context) MD5_CONTEXT;
context->Init();
}
/*
this is a variant of md5_init to be used in this file only.
does nothing for yassl, because the context's constructor was called automatically.
*/
static void md5_init_fast(MD5_CONTEXT *context)
{
}
static void md5_input(MD5_CONTEXT *context, const uchar *buf, unsigned len)
{
context->Update((const TaoCrypt::byte *) buf, len);
}
static void md5_result(MD5_CONTEXT *context, uchar digest[MD5_HASH_SIZE])
{
context->Final((TaoCrypt::byte *) digest);
}
#elif defined(HAVE_OPENSSL)
#include <openssl/evp.h>
typedef EVP_MD_CTX MD5_CONTEXT;
static void md5_init(MD5_CONTEXT *context)
{
EVP_MD_CTX_init(context);
#ifdef EVP_MD_CTX_FLAG_NON_FIPS_ALLOW
/* Ok to ignore FIPS: MD5 is not used for crypto here */
EVP_MD_CTX_set_flags(context, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
#endif
EVP_DigestInit_ex(context, EVP_md5(), NULL);
}
static void md5_init_fast(MD5_CONTEXT *context)
{
md5_init(context);
}
static void md5_input(MD5_CONTEXT *context, const uchar *buf, unsigned len)
{
EVP_DigestUpdate(context, buf, len);
}
static void md5_result(MD5_CONTEXT *context, uchar digest[MD5_HASH_SIZE])
{
EVP_DigestFinal_ex(context, digest, NULL);
EVP_MD_CTX_cleanup(context);
}
#endif /* HAVE_YASSL */
/**
Wrapper function to compute MD5 message digest.
@param digest [out] Computed MD5 digest
@param buf [in] Message to be computed
@param len [in] Length of the message
@return void
*/
void my_md5(uchar *digest, const char *buf, size_t len)
{
MD5_CONTEXT md5_context;
md5_init_fast(&md5_context);
md5_input(&md5_context, (const uchar *)buf, len);
md5_result(&md5_context, digest);
}
/**
Wrapper function to compute MD5 message digest for
two messages in order to emulate md5(msg1, msg2).
@param digest [out] Computed MD5 digest
@param buf1 [in] First message
@param len1 [in] Length of first message
@param buf2 [in] Second message
@param len2 [in] Length of second message
@return void
*/
void my_md5_multi(uchar *digest, ...)
{
va_list args;
va_start(args, digest);
MD5_CONTEXT md5_context;
const uchar *str;
md5_init_fast(&md5_context);
for (str= va_arg(args, const uchar*); str; str= va_arg(args, const uchar*))
md5_input(&md5_context, str, va_arg(args, size_t));
md5_result(&md5_context, digest);
va_end(args);
}
size_t my_md5_context_size()
{
return sizeof(MD5_CONTEXT);
}
void my_md5_init(void *context)
{
md5_init((MD5_CONTEXT *)context);
}
void my_md5_input(void *context, const uchar *buf, size_t len)
{
md5_input((MD5_CONTEXT *)context, buf, len);
}
void my_md5_result(void *context, uchar *digest)
{
md5_result((MD5_CONTEXT *)context, digest);
}
|
