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/*
* Copyright (C) 2008-2011 TrinityCore <http://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"
#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
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