sl@0: /*
sl@0: * Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of the License "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: /**
sl@0:  @file
sl@0:  @internalComponent
sl@0:  @released
sl@0: */
sl@0: 
sl@0: #ifndef __DHKEYPAIRSHIM_H__
sl@0: #define __DHKEYPAIRSHIM_H__
sl@0: 
sl@0: #include "asymmetrickeys.h"
sl@0: 
sl@0: 	
sl@0: /** 
sl@0: * This class is capable of generating a Diffie-Hellman (DH) public/private key pair using the new crypto SPI interface.
sl@0: */
sl@0: NONSHARABLE_CLASS(CDHKeyPairShim) : public CDHKeyPair
sl@0: 	{
sl@0: public:
sl@0: 	/**
sl@0: 	 * Creates a new DH key pair from a random large integer,
sl@0: 	 * and a specified large prime and generator.
sl@0: 	 *
sl@0: 	 * The returned pointer is put onto the cleanup stack.
sl@0: 	 *
sl@0: 	 * @param aN	The DH parameter, n (a large prime)
sl@0: 	 * @param aG	The DH parameter, g (the generator)
sl@0: 	 * @return A pointer to a CDHKeyPairShim instance
sl@0: 	 * 
sl@0: 	 * @leave KErrArgument	If aG is out of bounds 
sl@0: 	 */
sl@0: 	static CDHKeyPairShim* NewLC(RInteger& aN, RInteger& aG);
sl@0: 
sl@0: 	/**
sl@0: 	 * Creates a new DH key pair from a specified 
sl@0: 	 * large prime, generator, and random large integer.
sl@0: 	 *
sl@0: 	 * The returned pointer is put onto the cleanup stack.
sl@0: 	 *
sl@0: 	 * @param aN	The DH parameter, n (a large prime)
sl@0: 	 * @param aG	The DH parameter, g (the generator)
sl@0: 	 * @param ax	The DH value, x (a random large integer)
sl@0: 	 * @return A pointer to a CDHKeyPairShim instance
sl@0: 	 * 
sl@0: 	 * @leave KErrArgument	If either aG or ax are out of bounds 
sl@0: 	 */
sl@0: 	static CDHKeyPairShim* NewLC(RInteger& aN, RInteger& aG, RInteger& ax);
sl@0: 
sl@0: 	/** The destructor frees all resources owned by the object, prior to its destruction. */
sl@0: 	~CDHKeyPairShim(void);
sl@0: protected:
sl@0: 	/** Default constructor */
sl@0: 	CDHKeyPairShim(void);
sl@0: 
sl@0: 	/** 
sl@0: 	 * Constructor
sl@0: 	 *
sl@0: 	 * @param aN	The DH parameter, n (a large prime)
sl@0: 	 * @param aG	The DH parameter, g (the generator)
sl@0: 	 */
sl@0: 	void ConstructL(RInteger& aN, RInteger& aG);
sl@0: 
sl@0: 	/** 
sl@0: 	 * Constructor
sl@0: 	 *
sl@0: 	 * @param aN	The DH parameter, n (a large prime)
sl@0: 	 * @param aG	The DH parameter, g (the generator)
sl@0: 	 * @param ax	The DH value, x (a random large integer)
sl@0: 	 */
sl@0: 	void ConstructL(RInteger& aN, RInteger& aG, RInteger& ax);
sl@0: 	
sl@0: 	/**
sl@0: 	Creates the DH keypair from the given parameters
sl@0: 	@param aN	The DH parameter, n (a large prime)
sl@0: 	@param aG	The DH parameter, g (the generator)
sl@0: 	@param ax	The DH value, x (a random large integer)
sl@0: 	@param xIncluded if the x is included or not.
sl@0: 	*/
sl@0: 	void KeyConstructorL(RInteger& aN, RInteger& aG, RInteger& ax, TBool xIncluded);
sl@0: 	
sl@0: private:
sl@0: 	CDHKeyPairShim(const CDHKeyPairShim&);
sl@0: 	CDHKeyPairShim& operator=(const CDHKeyPairShim&);
sl@0: 	};
sl@0: 
sl@0: #endif	//	__DHKEYPAIRSHIM_H__