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/*
* Copyright (C) 2005-2008 MaNGOS <http://www.mangosproject.org/>
*
* Copyright (C) 2008 Trinity <http://www.trinitycore.org/>
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _AUTH_BIGNUMBER_H
#define _AUTH_BIGNUMBER_H
#include "Common.h"
#include "ByteBuffer.h"
struct bignum_st;
class BigNumber
{
public:
BigNumber();
BigNumber(const BigNumber &bn);
BigNumber(uint32);
~BigNumber();
void SetDword(uint32);
void SetQword(uint64);
void SetBinary(const uint8 *bytes, int len);
void SetHexStr(const char *str);
void SetRand(int numbits);
BigNumber operator=(const BigNumber &bn);
BigNumber operator+=(const BigNumber &bn);
BigNumber operator+(const BigNumber &bn)
{
BigNumber t(*this);
return t += bn;
}
BigNumber operator-=(const BigNumber &bn);
BigNumber operator-(const BigNumber &bn)
{
BigNumber t(*this);
return t -= bn;
}
BigNumber operator*=(const BigNumber &bn);
BigNumber operator*(const BigNumber &bn)
{
BigNumber t(*this);
return t *= bn;
}
BigNumber operator/=(const BigNumber &bn);
BigNumber operator/(const BigNumber &bn)
{
BigNumber t(*this);
return t /= bn;
}
BigNumber operator%=(const BigNumber &bn);
BigNumber operator%(const BigNumber &bn)
{
BigNumber t(*this);
return t %= bn;
}
BigNumber ModExp(const BigNumber &bn1, const BigNumber &bn2);
BigNumber Exp(const BigNumber &);
int GetNumBytes(void);
struct bignum_st *BN() { return _bn; }
uint32 AsDword();
uint8* AsByteArray(int minSize = 0);
ByteBuffer AsByteBuffer();
std::vector<uint8> AsByteVector();
const char *AsHexStr();
const char *AsDecStr();
private:
struct bignum_st *_bn;
uint8 *_array;
};
#endif
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