mirror of
https://github.com/mangosfour/server.git
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78 lines
2.2 KiB
C++
78 lines
2.2 KiB
C++
/*
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* Copyright (C) 2005-2009 MaNGOS <http://getmangos.com/>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "AuthCrypt.h"
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#include "Hmac.h"
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#include "Log.h"
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#include "BigNumber.h"
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AuthCrypt::AuthCrypt()
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{
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_initialized = false;
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}
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AuthCrypt::~AuthCrypt()
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{
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}
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void AuthCrypt::Init(BigNumber *K)
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{
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uint8 ServerEncryptionKey[SEED_KEY_SIZE] = { 0x22, 0xBE, 0xE5, 0xCF, 0xBB, 0x07, 0x64, 0xD9, 0x00, 0x45, 0x1B, 0xD0, 0x24, 0xB8, 0xD5, 0x45 };
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HmacHash serverEncryptHmac(SEED_KEY_SIZE, (uint8*)ServerEncryptionKey);
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uint8 *encryptHash = serverEncryptHmac.ComputeHash(K);
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uint8 ServerDecryptionKey[SEED_KEY_SIZE] = { 0xF4, 0x66, 0x31, 0x59, 0xFC, 0x83, 0x6E, 0x31, 0x31, 0x02, 0x51, 0xD5, 0x44, 0x31, 0x67, 0x98 };
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HmacHash clientDecryptHmac(SEED_KEY_SIZE, (uint8*)ServerDecryptionKey);
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uint8 *decryptHash = clientDecryptHmac.ComputeHash(K);
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SARC4 _serverDecrypt(encryptHash);
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_clientDecrypt.Init(decryptHash);
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_serverEncrypt.Init(encryptHash);
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SARC4 _clientEncrypt(decryptHash);
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uint8 syncBuf[1024];
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memset(syncBuf, 0, 1024);
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_serverEncrypt.UpdateData(1024, syncBuf);
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_clientEncrypt.UpdateData(1024, syncBuf);
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memset(syncBuf, 0, 1024);
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_serverDecrypt.UpdateData(1024, syncBuf);
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_clientDecrypt.UpdateData(1024, syncBuf);
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_initialized = true;
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}
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void AuthCrypt::DecryptRecv(uint8 *data, size_t len)
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{
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if (!_initialized)
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return;
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_clientDecrypt.UpdateData(len, data);
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}
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void AuthCrypt::EncryptSend(uint8 *data, size_t len)
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{
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if (!_initialized)
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return;
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_serverEncrypt.UpdateData(len, data);
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}
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