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
|
/*
* Copyright (C) 2014 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* 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 program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects for
* all of the code used other than as permitted herein. 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 in the license file.
*/
#include "mongo/platform/basic.h"
#include "mongo/config.h"
#include "mongo/util/scopeguard.h"
#ifndef MONGO_CONFIG_SSL
#error This file should only be included in SSL-enabled builds
#endif
#include <openssl/sha.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
namespace mongo {
namespace crypto {
/*
* Computes a SHA-1 hash of 'input'.
*/
bool sha1(const unsigned char* input,
const size_t inputLen,
unsigned char* output) {
EVP_MD_CTX digestCtx;
EVP_MD_CTX_init(&digestCtx);
ON_BLOCK_EXIT(EVP_MD_CTX_cleanup, &digestCtx);
if (1 != EVP_DigestInit_ex(&digestCtx, EVP_sha1(), NULL)) {
return false;
}
if (1 != EVP_DigestUpdate(&digestCtx, input, inputLen)) {
return false;
}
return (1 == EVP_DigestFinal_ex(&digestCtx, output, NULL));
}
/*
* Computes a HMAC SHA-1 keyed hash of 'input' using the key 'key'
*/
bool hmacSha1(const unsigned char* key,
const size_t keyLen,
const unsigned char* input,
const size_t inputLen,
unsigned char* output,
unsigned int* outputLen) {
return HMAC(EVP_sha1(),
key,
keyLen,
input,
inputLen,
output,
outputLen);
}
} // namespace crypto
} // namespace mongo
|