KeyAgreement.h

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/*
 * Copyright (c) 2004 X-Way Rights BV
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef _CLASS_BEE_CRYPTO_KEYAGREEMENT_H
#define _CLASS_BEE_CRYPTO_KEYAGREEMENT_H

#ifdef __cplusplus

#include "beecrypt/c++/crypto/KeyAgreementSpi.h"
using beecrypt::crypto::KeyAgreementSpi;

namespace beecrypt {
    namespace crypto {
        class BEECRYPTCXXAPI KeyAgreement : public Object
        {
        public:
            static KeyAgreement* getInstance(const String&) throw (NoSuchAlgorithmException);
            static KeyAgreement* getInstance(const String&, const String&) throw (NoSuchAlgorithmException, NoSuchProviderException);
            static KeyAgreement* getInstance(const String&, const Provider&) throw (NoSuchAlgorithmException);

        private:
            KeyAgreementSpi* _kspi;
            const Provider*  _prov;
            String           _algo;

        protected:
            KeyAgreement(KeyAgreementSpi* spi, const Provider* provider, const String& algorithm);

        public:
            virtual ~KeyAgreement();

            void init(const Key&, SecureRandom* = 0) throw (InvalidKeyException);
            void init(const Key&, const AlgorithmParameterSpec&, SecureRandom* = 0) throw (InvalidKeyException);

            Key* doPhase(const Key&, bool) throw (InvalidKeyException, IllegalStateException);

            bytearray* generateSecret() throw (IllegalStateException);
            int generateSecret(bytearray&, int) throw (IllegalStateException, ShortBufferException);
            SecretKey* generateSecret(const String&) throw (IllegalStateException, NoSuchAlgorithmException, InvalidKeyException);
        };
    }
}

#endif

#endif