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/*
* Copyright (C) 2008-2012 TrinityCore <http://www.trinitycore.org/>
* Copyright (C) 2005-2009 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/>.
*/
#ifndef _AUTH_BIGNUMBER_H
#define _AUTH_BIGNUMBER_H
#include "Define.h"
#include <ace/Mutex.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;
}
bool isZero() const;
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, bool reverse = true);
char * AsHexStr() const;
char * AsDecStr() const;
private:
struct bignum_st *_bn;
uint8 *_array;
// This mutex only controls thread-safe access to AsByteArray() and should be replaced with a thread-safe implementation of BigNumber
ACE_Mutex _lock;
};
#endif
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