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Mac.h

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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_MAC_H
00024 #define _CLASS_MAC_H
00025 
00026 // #include "beecrypt/api.h"
00027 
00028 #ifdef __cplusplus
00029 
00030 #include "beecrypt/c++/crypto/MacSpi.h"
00031 using beecrypt::crypto::MacSpi;
00032 #include "beecrypt/c++/lang/Object.h"
00033 using beecrypt::lang::Object;
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 crypto {
00045         class BEECRYPTCXXAPI Mac : public beecrypt::lang::Object
00046         {
00047         public:
00048             static Mac* getInstance(const String&) throw (NoSuchAlgorithmException);
00049             static Mac* getInstance(const String&, const String&) throw (NoSuchAlgorithmException, NoSuchProviderException);
00050             static Mac* getInstance(const String&, const Provider&) throw (NoSuchAlgorithmException);
00051 
00052         private:
00053             MacSpi*         _mspi;
00054             String          _algo;
00055             const Provider* _prov;
00056             bool            _init;
00057 
00058         protected:
00059             Mac(MacSpi* macSpi, const Provider* provider, const String& algorithm);
00060 
00061         public:
00062             virtual ~Mac();
00063 
00064             Mac* clone() const throw ();
00065 
00066             const bytearray& doFinal() throw (IllegalStateException);
00067             const bytearray& doFinal(const bytearray&) throw (IllegalStateException);
00068             size_t doFinal(byte* data, size_t offset, size_t length) throw (IllegalStateException, ShortBufferException);
00069             size_t getMacLength();
00070             void init(const Key&) throw (InvalidKeyException);
00071             void init(const Key&, const AlgorithmParameterSpec*) throw (InvalidKeyException, InvalidAlgorithmParameterException);
00072             void reset();
00073             void update(byte) throw (IllegalStateException);
00074             void update(const byte* data, size_t offset, size_t length) throw (IllegalStateException);
00075             void update(const bytearray&) throw (IllegalStateException);
00076 
00077             const String& getAlgorithm() const throw ();
00078             const Provider& getProvider() const throw ();
00079         };
00080     }
00081 }
00082 
00083 #endif
00084 
00085 #endif

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