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
|
/* Copyright (c) 2012, Oracle and/or its affiliates.
Copyright (c) 2017, MariaDB Corporation
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_WOLFSSL)
#include <wolfssl/wolfcrypt/md5.h>
#include <ssl_compat.h>
typedef wc_Md5 EVP_MD_CTX;
static void md5_init(EVP_MD_CTX *context)
{
wc_InitMd5(context);;
}
static void md5_input(EVP_MD_CTX *context, const uchar *buf, unsigned len)
{
wc_Md5Update(context, buf, len);
}
static void md5_result(EVP_MD_CTX *context, uchar digest[MD5_HASH_SIZE])
{
wc_Md5Final(context,digest);
}
#elif defined(HAVE_OPENSSL)
#include <openssl/evp.h>
#include <ssl_compat.h>
static void md5_init(EVP_MD_CTX *context)
{
#if OPENSSL_VERSION_NUMBER >= 0x30000000L
EVP_MD *md5;
EVP_MD_CTX_init(context);
/* Ok to ignore FIPS: MD5 is not used for crypto here */
/* In OpenSSL 3.0.0+ it is a different EVP_MD provider */
md5 = EVP_MD_fetch(NULL, "MD5", "fips=no");
EVP_DigestInit_ex(context, md5, NULL);
EVP_MD_free(md5);
#else
EVP_MD_CTX_init(context);
#ifdef EVP_MD_CTX_FLAG_NON_FIPS_ALLOW
/* Ok to ignore FIPS: MD5 is not used for crypto here */
/* In OpenSSL 1.1.1 the non FIPS allowed flag is context specific */
EVP_MD_CTX_set_flags(context, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
#endif
EVP_DigestInit_ex(context, EVP_md5(), NULL);
#endif
}
static void md5_input(EVP_MD_CTX *context, const uchar *buf, unsigned len)
{
EVP_DigestUpdate(context, buf, len);
}
static void md5_result(EVP_MD_CTX *context, uchar digest[MD5_HASH_SIZE])
{
EVP_DigestFinal_ex(context, digest, NULL);
EVP_MD_CTX_reset(context);
}
#endif /* HAVE_WOLFSSL */
/**
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)
{
char ctx_buf[EVP_MD_CTX_SIZE];
EVP_MD_CTX * const ctx= (EVP_MD_CTX*)ctx_buf;
md5_init(ctx);
md5_input(ctx, (const uchar *)buf, (uint) len);
md5_result(ctx, digest);
}
/**
Wrapper function to compute MD5 message digest for
many messages, concatenated.
@param digest [out] Computed MD5 digest
@param buf1 [in] First message
@param len1 [in] Length of first message
...
@param bufN [in] NULL terminates the list of buf,len pairs.
@return void
*/
void my_md5_multi(uchar *digest, ...)
{
va_list args;
const uchar *str;
char ctx_buf[EVP_MD_CTX_SIZE];
EVP_MD_CTX * const ctx= (EVP_MD_CTX*)ctx_buf;
va_start(args, digest);
md5_init(ctx);
for (str= va_arg(args, const uchar*); str; str= va_arg(args, const uchar*))
md5_input(ctx, str, (uint) va_arg(args, size_t));
md5_result(ctx, digest);
va_end(args);
}
size_t my_md5_context_size()
{
return EVP_MD_CTX_SIZE;
}
void my_md5_init(void *context)
{
md5_init((EVP_MD_CTX *)context);
}
void my_md5_input(void *context, const uchar *buf, size_t len)
{
md5_input((EVP_MD_CTX *)context, buf, (uint) len);
}
void my_md5_result(void *context, uchar *digest)
{
md5_result((EVP_MD_CTX *)context, digest);
}
|
