blob: 9621af53592d03ab29e9d62c5ff0eca7f6a378d6 (
plain)
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
|
/*
* TLS Handshake Hash
* (C) 2004-2006,2011 Jack Lloyd
*
* Released under the terms of the Botan license
*/
#include <botan/internal/tls_handshake_hash.h>
#include <botan/md5.h>
#include <botan/sha160.h>
#include <memory>
namespace Botan {
void TLS_Handshake_Hash::update(Handshake_Type handshake_type,
const MemoryRegion<byte>& handshake_msg)
{
update(static_cast<byte>(handshake_type));
const size_t record_length = handshake_msg.size();
for(size_t i = 0; i != 3; i++)
update(get_byte<u32bit>(i+1, record_length));
update(handshake_msg);
}
/**
* Return a TLS Handshake Hash
*/
SecureVector<byte> TLS_Handshake_Hash::final()
{
MD5 md5;
SHA_160 sha1;
md5.update(data);
sha1.update(data);
SecureVector<byte> output;
output += md5.final();
output += sha1.final();
return output;
}
/**
* Return a SSLv3 Handshake Hash
*/
SecureVector<byte> TLS_Handshake_Hash::final_ssl3(const MemoryRegion<byte>& secret)
{
const byte PAD_INNER = 0x36, PAD_OUTER = 0x5C;
MD5 md5;
SHA_160 sha1;
md5.update(data);
sha1.update(data);
md5.update(secret);
sha1.update(secret);
for(size_t i = 0; i != 48; ++i)
md5.update(PAD_INNER);
for(size_t i = 0; i != 40; ++i)
sha1.update(PAD_INNER);
SecureVector<byte> inner_md5 = md5.final(), inner_sha1 = sha1.final();
md5.update(secret);
sha1.update(secret);
for(size_t i = 0; i != 48; ++i)
md5.update(PAD_OUTER);
for(size_t i = 0; i != 40; ++i)
sha1.update(PAD_OUTER);
md5.update(inner_md5);
sha1.update(inner_sha1);
SecureVector<byte> output;
output += md5.final();
output += sha1.final();
return output;
}
}
|
