WorldPacketCrypt.h

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/*
 * This file is part of the TrinityCore Project. See AUTHORS file for Copyright information
 *
 * 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 _WORLDPACKETCRYPT_H
#define _WORLDPACKETCRYPT_H
 
#include "AES.h"
 
class TC_COMMON_API WorldPacketCrypt
{
public:
    using Key = std::array<uint8, 32>;
 
    WorldPacketCrypt();
 
    void Init(Key const& key);
    bool PeekDecryptRecv(uint8* data, size_t length);
    bool DecryptRecv(uint8* data, size_t length, Trinity::Crypto::AES::Tag& tag);
    bool EncryptSend(uint8* data, size_t length, Trinity::Crypto::AES::Tag& tag);
 
    bool IsInitialized() const { return _initialized; }
 
protected:
    Trinity::Crypto::AES _clientDecrypt;
    Trinity::Crypto::AES _serverEncrypt;
    uint64 _clientCounter;
    uint64 _serverCounter;
    bool _initialized;
};
 
#endif // _WORLDPACKETCRYPT_H