/* * Copyright (C) 2008-2014 TrinityCore * Copyright (C) 2005-2009 MaNGOS * * 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 . */ #include "ARC4.h" #include ARC4::ARC4(uint8 len) : m_ctx() { 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); } ARC4::ARC4(uint8 *seed, uint8 len) : m_ctx() { 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); } ARC4::~ARC4() { EVP_CIPHER_CTX_cleanup(&m_ctx); } void ARC4::Init(uint8 *seed) { EVP_EncryptInit_ex(&m_ctx, NULL, NULL, seed, NULL); } void ARC4::UpdateData(int len, uint8 *data) { int outlen = 0; EVP_EncryptUpdate(&m_ctx, data, &outlen, data, len); EVP_EncryptFinal_ex(&m_ctx, data, &outlen); }