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KeyAgreement.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_KEYAGREEMENT_H
00024 #define _CLASS_KEYAGREEMENT_H
00025 
00026 #ifdef __cplusplus
00027 
00028 #include "beecrypt/c++/crypto/KeyAgreementSpi.h"
00029 using beecrypt::crypto::KeyAgreementSpi;
00030 #include "beecrypt/c++/lang/Object.h"
00031 using beecrypt::lang::Object;
00032 
00033 namespace beecrypt {
00034     namespace crypto {
00037         class BEECRYPTCXXAPI KeyAgreement : public beecrypt::lang::Object
00038         {
00039         public:
00040             static KeyAgreement* getInstance(const String&) throw (NoSuchAlgorithmException);
00041             static KeyAgreement* getInstance(const String&, const String&) throw (NoSuchAlgorithmException, NoSuchProviderException);
00042             static KeyAgreement* getInstance(const String&, const Provider&) throw (NoSuchAlgorithmException);
00043 
00044         private:
00045             KeyAgreementSpi* _kspi;
00046             const Provider*  _prov;
00047             String           _algo;
00048 
00049         protected:
00050             KeyAgreement(KeyAgreementSpi* spi, const Provider* provider, const String& algorithm);
00051 
00052         public:
00053             virtual ~KeyAgreement();
00054 
00055             void init(const Key&, SecureRandom* = 0) throw (InvalidKeyException);
00056             void init(const Key&, const AlgorithmParameterSpec&, SecureRandom* = 0) throw (InvalidKeyException);
00057 
00058             Key* doPhase(const Key&, bool) throw (InvalidKeyException, IllegalStateException);
00059 
00060             bytearray* generateSecret() throw (IllegalStateException);
00061             size_t generateSecret(bytearray&, size_t) throw (IllegalStateException, ShortBufferException);
00062             SecretKey* generateSecret(const String&) throw (IllegalStateException, NoSuchAlgorithmException, InvalidKeyException);
00063         };
00064     }
00065 }
00066 
00067 #endif
00068 
00069 #endif

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