/* aes.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 *//* aes.hpp defines AES*/#ifndef TAO_CRYPT_AES_HPP#define TAO_CRYPT_AES_HPP#include <string.h>#include "misc.hpp"#include "modes.hpp"#include "block.hpp"namespace TaoCrypt {enum { AES_BLOCK_SIZE = 16 };// AES encryption and decryption, see FIPS-197class AES : public Mode_BASE {public:    enum { BLOCK_SIZE = AES_BLOCK_SIZE };    AES(CipherDir DIR, Mode MODE)        : Mode_BASE(BLOCK_SIZE), dir_(DIR), mode_(MODE) {}    void Process(byte*, const byte*, word32);    void SetKey(const byte* iv, word32 sz, CipherDir fake = ENCRYPTION);    void ProcessAndXorBlock(const byte*, const byte*, byte*) const;private:    CipherDir dir_;    Mode      mode_;    static const word32 Te0[256];    static const word32 Te1[256];    static const word32 Te2[256];    static const word32 Te3[256];    static const word32 Te4[256];    static const word32 Td0[256];    static const word32 Td1[256];    static const word32 Td2[256];    static const word32 Td3[256];    static const word32 Td4[256];    static const word32 rcon_[];    word32      rounds_;    Word32Block key_;    void encrypt(const byte*, const byte*, byte*) const;    void decrypt(const byte*, const byte*, byte*) const;    AES(const AES&);            // hide copy    AES& operator=(const AES&); // and assign};typedef BlockCipher<ENCRYPTION, AES, ECB> AES_ECB_Encryption;typedef BlockCipher<DECRYPTION, AES, ECB> AES_ECB_Decryption;typedef BlockCipher<ENCRYPTION, AES, CBC> AES_CBC_Encryption;typedef BlockCipher<DECRYPTION, AES, CBC> AES_CBC_Decryption;} // naemspace#endif // TAO_CRYPT_AES_HPP