--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crypto/weakcryptospi/source/asymmetric/dhkeypairshim.h	Fri Nov 06 13:21:00 2009 +0200
@@ -0,0 +1,103 @@
+/*
+* Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the License "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description: 
+*
+*/
+
+
+/**
+ @file
+ @internalComponent
+ @released
+*/
+
+#ifndef __DHKEYPAIRSHIM_H__
+#define __DHKEYPAIRSHIM_H__
+
+#include "asymmetrickeys.h"
+
+	
+/** 
+* This class is capable of generating a Diffie-Hellman (DH) public/private key pair using the new crypto SPI interface.
+*/
+NONSHARABLE_CLASS(CDHKeyPairShim) : public CDHKeyPair
+	{
+public:
+	/**
+	 * Creates a new DH key pair from a random large integer,
+	 * and a specified large prime and generator.
+	 *
+	 * The returned pointer is put onto the cleanup stack.
+	 *
+	 * @param aN	The DH parameter, n (a large prime)
+	 * @param aG	The DH parameter, g (the generator)
+	 * @return A pointer to a CDHKeyPairShim instance
+	 * 
+	 * @leave KErrArgument	If aG is out of bounds 
+	 */
+	static CDHKeyPairShim* NewLC(RInteger& aN, RInteger& aG);
+
+	/**
+	 * Creates a new DH key pair from a specified 
+	 * large prime, generator, and random large integer.
+	 *
+	 * The returned pointer is put onto the cleanup stack.
+	 *
+	 * @param aN	The DH parameter, n (a large prime)
+	 * @param aG	The DH parameter, g (the generator)
+	 * @param ax	The DH value, x (a random large integer)
+	 * @return A pointer to a CDHKeyPairShim instance
+	 * 
+	 * @leave KErrArgument	If either aG or ax are out of bounds 
+	 */
+	static CDHKeyPairShim* NewLC(RInteger& aN, RInteger& aG, RInteger& ax);
+
+	/** The destructor frees all resources owned by the object, prior to its destruction. */
+	~CDHKeyPairShim(void);
+protected:
+	/** Default constructor */
+	CDHKeyPairShim(void);
+
+	/** 
+	 * Constructor
+	 *
+	 * @param aN	The DH parameter, n (a large prime)
+	 * @param aG	The DH parameter, g (the generator)
+	 */
+	void ConstructL(RInteger& aN, RInteger& aG);
+
+	/** 
+	 * Constructor
+	 *
+	 * @param aN	The DH parameter, n (a large prime)
+	 * @param aG	The DH parameter, g (the generator)
+	 * @param ax	The DH value, x (a random large integer)
+	 */
+	void ConstructL(RInteger& aN, RInteger& aG, RInteger& ax);
+	
+	/**
+	Creates the DH keypair from the given parameters
+	@param aN	The DH parameter, n (a large prime)
+	@param aG	The DH parameter, g (the generator)
+	@param ax	The DH value, x (a random large integer)
+	@param xIncluded if the x is included or not.
+	*/
+	void KeyConstructorL(RInteger& aN, RInteger& aG, RInteger& ax, TBool xIncluded);
+	
+private:
+	CDHKeyPairShim(const CDHKeyPairShim&);
+	CDHKeyPairShim& operator=(const CDHKeyPairShim&);
+	};
+
+#endif	//	__DHKEYPAIRSHIM_H__