/* arc4.hpp * * Copyright (C) 2003 Sawtooth Consulting Ltd. * * This file is part of yaSSL. * * yaSSL 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. * * yaSSL 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 */ /* arc4.hpp defines ARC4 */ #ifndef TAO_CRYPT_ARC4_HPP #define TAO_CRYPT_ARC4_HPP #include "misc.hpp" namespace TaoCrypt { // ARC4 encryption and decryption class ARC4 { public: enum { STATE_SIZE = 256 }; typedef ARC4 Encryption; typedef ARC4 Decryption; ARC4() {} void Process(byte*, const byte*, word32); void SetKey(const byte*, word32); private: byte x_; byte y_; byte state_[STATE_SIZE]; ARC4(const ARC4&); // hide copy const ARC4 operator=(const ARC4&); // and assign }; } // namespace #endif // TAO_CRYPT_ARC4_HPP