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
|
/*
* Copyright (c) 2021-2022 Ribose Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <cassert>
#include "logging.h"
#include "hash_sha1cd.hpp"
namespace rnp {
Hash_SHA1CD::Hash_SHA1CD() : Hash(PGP_HASH_SHA1)
{
assert(size_ == 20);
SHA1DCInit(&ctx_);
}
Hash_SHA1CD::Hash_SHA1CD(const Hash_SHA1CD &src) : Hash(PGP_HASH_SHA1)
{
ctx_ = src.ctx_;
}
Hash_SHA1CD::~Hash_SHA1CD()
{
}
std::unique_ptr<Hash_SHA1CD>
Hash_SHA1CD::create()
{
return std::unique_ptr<Hash_SHA1CD>(new Hash_SHA1CD());
}
std::unique_ptr<Hash>
Hash_SHA1CD::clone() const
{
return std::unique_ptr<Hash>(new Hash_SHA1CD(*this));
}
/* This produces runtime error: load of misaligned address 0x60d0000030a9 for type 'const
* uint32_t' (aka 'const unsigned int'), which requires 4 byte alignment */
#if defined(__clang__)
__attribute__((no_sanitize("undefined")))
#endif
void
Hash_SHA1CD::add(const void *buf, size_t len)
{
SHA1DCUpdate(&ctx_, (const char *) buf, len);
}
#if defined(__clang__)
__attribute__((no_sanitize("undefined")))
#endif
size_t
Hash_SHA1CD::finish(uint8_t *digest)
{
unsigned char fixed_digest[20];
int res = SHA1DCFinal(fixed_digest, &ctx_);
if (res && digest) {
/* Show warning only if digest is non-null */
RNP_LOG("Warning! SHA1 collision detected and mitigated.");
}
if (res) {
throw rnp_exception(RNP_ERROR_BAD_STATE);
}
if (digest) {
memcpy(digest, fixed_digest, 20);
}
return 20;
}
} // namespace rnp
|
