/* hash.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 */ /* hash.hpp provides a base for digest types */ #ifndef TAO_CRYPT_HASH_HPP #define TAO_CRYPT_HASH_HPP #include "misc.hpp" namespace TaoCrypt { // HASH class HASH { public: virtual ~HASH() {} virtual void Update(const byte*, word32) = 0; virtual void Final(byte*) = 0; virtual void Init() = 0; virtual word32 getBlockSize() const = 0; virtual word32 getDigestSize() const = 0; }; // HASH with Transform class HASHwithTransform : public HASH { public: HASHwithTransform(word32 digSz, word32 buffSz) : digest_(new (tc) word32[digSz]), buffer_(new (tc) byte[buffSz]) {} virtual ~HASHwithTransform() { delete[] buffer_; delete[] digest_; } virtual ByteOrder getByteOrder() const = 0; virtual word32 getPadSize() const = 0; virtual void Update(const byte*, word32); virtual void Final(byte*); protected: word32 buffLen_; word32 length_; // in Bits word32* digest_; byte* buffer_; virtual void Transform() = 0; }; } // namespace #endif // TAO_CRYPT_HASH_HPP