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
|
/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2013 Nils Maier
*
* 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; either version 2 of the License, or
* (at your option) any later version.
*
* 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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
/* copyright --> */
#include "MessageDigestImpl.h"
#include <CommonCrypto/CommonDigest.h>
namespace aria2 {
namespace {
template<size_t dlen,
typename ctx_t,
int (*init_fn)(ctx_t*),
int (*update_fn)(ctx_t*, const void*, CC_LONG),
int(*final_fn)(unsigned char*, ctx_t*)>
class MessageDigestBase : public MessageDigestImpl {
public:
MessageDigestBase() { reset(); }
virtual ~MessageDigestBase() {}
static size_t length() {
return dlen;
}
virtual size_t getDigestLength() const CXX11_OVERRIDE {
return dlen;
}
virtual void reset() CXX11_OVERRIDE {
init_fn(&ctx_);
}
virtual void update(const void* data, size_t length) CXX11_OVERRIDE {
auto bytes = reinterpret_cast<const char*>(data);
while (length) {
CC_LONG l = std::min(length, (size_t)std::numeric_limits<uint32_t>::max());
update_fn(&ctx_, bytes, l);
length -= l;
bytes += l;
}
}
virtual void digest(unsigned char* md) CXX11_OVERRIDE {
final_fn(md, &ctx_);
}
private:
ctx_t ctx_;
};
typedef MessageDigestBase<CC_MD5_DIGEST_LENGTH,
CC_MD5_CTX,
CC_MD5_Init,
CC_MD5_Update,
CC_MD5_Final>
MessageDigestMD5;
typedef MessageDigestBase<CC_SHA1_DIGEST_LENGTH,
CC_SHA1_CTX,
CC_SHA1_Init,
CC_SHA1_Update,
CC_SHA1_Final>
MessageDigestSHA1;
typedef MessageDigestBase<CC_SHA224_DIGEST_LENGTH,
CC_SHA256_CTX,
CC_SHA224_Init,
CC_SHA224_Update,
CC_SHA224_Final>
MessageDigestSHA224;
typedef MessageDigestBase<CC_SHA256_DIGEST_LENGTH,
CC_SHA256_CTX,
CC_SHA256_Init,
CC_SHA256_Update,
CC_SHA256_Final>
MessageDigestSHA256;
typedef MessageDigestBase<CC_SHA384_DIGEST_LENGTH,
CC_SHA512_CTX,
CC_SHA384_Init,
CC_SHA384_Update,
CC_SHA384_Final>
MessageDigestSHA384;
typedef MessageDigestBase<CC_SHA512_DIGEST_LENGTH,
CC_SHA512_CTX,
CC_SHA512_Init,
CC_SHA512_Update,
CC_SHA512_Final>
MessageDigestSHA512;
} // namespace
std::unique_ptr<MessageDigestImpl> MessageDigestImpl::sha1()
{
return std::unique_ptr<MessageDigestImpl>(new MessageDigestSHA1());
}
MessageDigestImpl::hashes_t MessageDigestImpl::hashes = {
{ "sha-1", make_hi<MessageDigestSHA1>() },
{ "sha-224", make_hi<MessageDigestSHA224>() },
{ "sha-256", make_hi<MessageDigestSHA256>() },
{ "sha-384", make_hi<MessageDigestSHA384>() },
{ "sha-512", make_hi<MessageDigestSHA512>() },
{ "md5", make_hi<MessageDigestMD5>() },
};
} // namespace aria2
|
