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
|
/*
* Copyright (C) 2008-2018 TrinityCore <https://www.trinitycore.org/>
* Copyright (C) 2005-2011 MaNGOS <http://getmangos.com/>
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include "SHA1.h"
#include <cstring>
#ifndef _WARDEN_KEY_GENERATION_H
#define _WARDEN_KEY_GENERATION_H
class SHA1Randx
{
public:
SHA1Randx(uint8* buff, uint32 size)
{
uint32 halfSize = size / 2;
sh.Initialize();
sh.UpdateData(buff, halfSize);
sh.Finalize();
memcpy(o1, sh.GetDigest(), 20);
sh.Initialize();
sh.UpdateData(buff + halfSize, size - halfSize);
sh.Finalize();
memcpy(o2, sh.GetDigest(), 20);
memset(o0, 0x00, 20);
FillUp();
}
void Generate(uint8* buf, uint32 sz)
{
for (uint32 i = 0; i < sz; ++i)
{
if (taken == 20)
FillUp();
buf[i] = o0[taken];
taken++;
}
}
private:
void FillUp()
{
sh.Initialize();
sh.UpdateData(o1, 20);
sh.UpdateData(o0, 20);
sh.UpdateData(o2, 20);
sh.Finalize();
memcpy(o0, sh.GetDigest(), 20);
taken = 0;
}
SHA1Hash sh;
uint32 taken;
uint8 o0[20], o1[20], o2[20];
};
#endif
|
