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
|
/**
* Copyright (c) 2018 Cornell University.
*
* Author: Ted Yin <tederminant@gmail.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
* this software and associated documentation files (the "Software"), to deal in
* the Software without restriction, including without limitation the rights to
* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is furnished to do
* so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef _SALTICIDAE_CRYPTO_H
#define _SALTICIDAE_CRYPTO_H
#include "salticidae/type.h"
#include <openssl/sha.h>
namespace salticidae {
class SHA256 {
SHA256_CTX ctx;
public:
SHA256() { reset(); }
void reset() {
if (!SHA256_Init(&ctx))
throw std::runtime_error("openssl SHA256 init error");
}
template<typename T>
void update(const T &data) {
update(reinterpret_cast<const uint8_t *>(&*data.begin()), data.size());
}
void update(const bytearray_t::const_iterator &it, size_t length) {
update(&*it, length);
}
void update(const uint8_t *ptr, size_t length) {
if (!SHA256_Update(&ctx, ptr, length))
throw std::runtime_error("openssl SHA256 update error");
}
void _digest(bytearray_t &md) {
if (!SHA256_Final(&*md.begin(), &ctx))
throw std::runtime_error("openssl SHA256 error");
}
void digest(bytearray_t &md) {
md.resize(32);
_digest(md);
}
bytearray_t digest() {
bytearray_t md(32);
_digest(md);
return std::move(md);
}
};
class SHA1 {
SHA_CTX ctx;
public:
SHA1() { reset(); }
void reset() {
if (!SHA1_Init(&ctx))
throw std::runtime_error("openssl SHA1 init error");
}
template<typename T>
void update(const T &data) {
update(reinterpret_cast<const uint8_t *>(&*data.begin()), data.size());
}
void update(const bytearray_t::const_iterator &it, size_t length) {
update(&*it, length);
}
void update(const uint8_t *ptr, size_t length) {
if (!SHA1_Update(&ctx, ptr, length))
throw std::runtime_error("openssl SHA1 update error");
}
void _digest(bytearray_t &md) {
if (!SHA1_Final(&*md.begin(), &ctx))
throw std::runtime_error("openssl SHA1 error");
}
void digest(bytearray_t &md) {
md.resize(32);
_digest(md);
}
bytearray_t digest() {
bytearray_t md(32);
_digest(md);
return std::move(md);
}
};
}
#endif
|