SecureRandom.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_SECURITY_SECURERANDOM_H
#define _CLASS_BEE_SECURITY_SECURERANDOM_H

#include "beecrypt/beecrypt.h"

#ifdef __cplusplus

#include "beecrypt/c++/security/SecureRandomSpi.h"
using beecrypt::security::SecureRandomSpi;
#include "beecrypt/c++/security/Provider.h"
using beecrypt::security::Provider;
#include "beecrypt/c++/security/NoSuchAlgorithmException.h"
using beecrypt::security::NoSuchAlgorithmException;
#include "beecrypt/c++/security/NoSuchProviderException.h"
using beecrypt::security::NoSuchProviderException;

namespace beecrypt {
    namespace security {
        class BEECRYPTCXXAPI SecureRandom : public Object
        {
        public:
            static SecureRandom* getInstance(const String& type) throw (NoSuchAlgorithmException);
            static SecureRandom* getInstance(const String& type, const String& provider) throw (NoSuchAlgorithmException, NoSuchProviderException);
            static SecureRandom* getInstance(const String& type, const Provider& provider) throw (NoSuchAlgorithmException);

            static void getSeed(byte*, int);

        private:
            SecureRandomSpi* _rspi;
            const Provider*  _prov;
            String           _type;

        protected:
            SecureRandom(SecureRandomSpi* spi, const Provider* provider, const String& type);

        public:
            SecureRandom();
            virtual ~SecureRandom();

            void generateSeed(byte*, int);
            void nextBytes(byte*, int);
            void setSeed(const byte*, int);

            const String& getType() const throw ();
            const Provider& getProvider() const throw ();
        };
    }
}

#endif

#endif