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/*
* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
*
* Copyright (C) 2008-2009 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_HMAC_H
#define _AUTH_HMAC_H
#include "Common.h"
#include <openssl/hmac.h>
#include <openssl/sha.h>
class BigNumber;
#define SEED_KEY_SIZE 16
class HmacHash
{
public:
HmacHash(uint32 len, uint8 *seed);
~HmacHash();
void UpdateBigNumber(BigNumber *bn);
void UpdateData(const uint8 *data, int length);
void Finalize();
uint8 *ComputeHash(BigNumber *bn);
uint8 *GetDigest() { return (uint8*)m_digest; }
int GetLength() { return SHA_DIGEST_LENGTH; }
private:
HMAC_CTX m_ctx;
uint8 m_digest[SHA_DIGEST_LENGTH];
};
#endif
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