00001 /* 00002 * Copyright (c) 2004 Beeyond Software Holding BV 00003 * 00004 * This library is free software; you can redistribute it and/or 00005 * modify it under the terms of the GNU Lesser General Public 00006 * License as published by the Free Software Foundation; either 00007 * version 2.1 of the License, or (at your option) any later version. 00008 * 00009 * This library is distributed in the hope that it will be useful, 00010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00012 * Lesser General Public License for more details. 00013 * 00014 * You should have received a copy of the GNU Lesser General Public 00015 * License along with this library; if not, write to the Free Software 00016 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00017 */ 00018 00023 #ifndef _CLASS_MESSAGEDIGEST_H 00024 #define _CLASS_MESSAGEDIGEST_H 00025 00026 #include "beecrypt/api.h" 00027 00028 #ifdef __cplusplus 00029 00030 #include "beecrypt/c++/lang/Object.h" 00031 using beecrypt::lang::Object; 00032 #include "beecrypt/c++/security/MessageDigestSpi.h" 00033 using beecrypt::security::MessageDigestSpi; 00034 #include "beecrypt/c++/security/Provider.h" 00035 using beecrypt::security::Provider; 00036 #include "beecrypt/c++/security/NoSuchAlgorithmException.h" 00037 using beecrypt::security::NoSuchAlgorithmException; 00038 #include "beecrypt/c++/security/NoSuchProviderException.h" 00039 using beecrypt::security::NoSuchProviderException; 00040 00041 namespace beecrypt { 00042 namespace security { 00045 class BEECRYPTCXXAPI MessageDigest : public beecrypt::lang::Object 00046 { 00047 public: 00048 static MessageDigest* getInstance(const String& algorithm) throw (NoSuchAlgorithmException); 00049 static MessageDigest* getInstance(const String& algorithm, const String& provider) throw (NoSuchAlgorithmException, NoSuchProviderException); 00050 static MessageDigest* getInstance(const String& algorithm, const Provider& provider) throw (NoSuchAlgorithmException); 00051 00052 private: 00053 MessageDigestSpi* _mspi; 00054 const Provider* _prov; 00055 String _algo; 00056 00057 protected: 00058 MessageDigest(MessageDigestSpi* spi, const Provider* provider, const String& algorithm); 00059 00060 public: 00061 virtual ~MessageDigest(); 00062 00063 virtual MessageDigest* clone() const throw (CloneNotSupportedException); 00064 00065 const bytearray& digest(); 00066 const bytearray& digest(const bytearray& b); 00067 size_t digest(byte* data, size_t offset, size_t length) throw (ShortBufferException); 00068 size_t getDigestLength(); 00069 void reset(); 00070 void update(byte b); 00071 void update(const byte* data, size_t offset, size_t length); 00072 void update(const bytearray& b); 00073 00074 const String& getAlgorithm() const throw (); 00075 const Provider& getProvider() const throw (); 00076 }; 00077 } 00078 } 00079 00080 #endif 00081 00082 #endif