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/*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "Auth/SARC4.h"
#include <openssl/sha.h>
SARC4::SARC4(uint8 len)
{
EVP_CIPHER_CTX_init(&m_ctx);
EVP_EncryptInit_ex(&m_ctx, EVP_rc4(), NULL, NULL, NULL);
EVP_CIPHER_CTX_set_key_length(&m_ctx, len);
}
SARC4::SARC4(uint8 *seed, uint8 len)
{
EVP_CIPHER_CTX_init(&m_ctx);
EVP_EncryptInit_ex(&m_ctx, EVP_rc4(), NULL, NULL, NULL);
EVP_CIPHER_CTX_set_key_length(&m_ctx, len);
EVP_EncryptInit_ex(&m_ctx, NULL, NULL, seed, NULL);
}
SARC4::~SARC4()
{
EVP_CIPHER_CTX_cleanup(&m_ctx);
}
void SARC4::Init(uint8 *seed)
{
EVP_EncryptInit_ex(&m_ctx, NULL, NULL, seed, NULL);
}
void SARC4::UpdateData(int len, uint8 *data)
{
int outlen = 0;
EVP_EncryptUpdate(&m_ctx, data, &outlen, data, len);
EVP_EncryptFinal_ex(&m_ctx, data, &outlen);
}
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