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azerothcore-wotlk/src/common/Cryptography/WardenKeyGeneration.h
2021-03-17 09:46:01 -06:00

68 lines
1.4 KiB
C++

/*
* Copyright (C) 2016+ AzerothCore <www.azerothcore.org>, released under GNU GPL v2 license, you may redistribute it and/or modify it under version 2 of the License, or (at your option), any later version.
* Copyright (C) 2008-2016 TrinityCore <http://www.trinitycore.org/>
* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
*/
#include "SHA1.h"
#ifndef _WARDEN_KEY_GENERATION_H
#define _WARDEN_KEY_GENERATION_H
class SHA1Randx
{
public:
SHA1Randx(uint8* buff, uint32 size)
{
uint32 taken = size / 2;
sh.Initialize();
sh.UpdateData(buff, taken);
sh.Finalize();
memcpy(o1, sh.GetDigest(), 20);
sh.Initialize();
sh.UpdateData(buff + taken, size - taken);
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