diff -r 675a964f4eb5 -r 35751d3474b7 crypto/weakcryptospi/inc/spi/keyagreementplugin.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crypto/weakcryptospi/inc/spi/keyagreementplugin.h	Thu Sep 10 14:01:51 2009 +0300
@@ -0,0 +1,93 @@
+/*
+* 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: 
+* keyagreement.h
+* Key Agreement Abstract Interface
+*
+*/
+
+
+/**
+ @file
+ @publishedPartner
+ @released
+*/
+
+#ifndef __CRYPTOAPI_KEYAGEEMENT_H__
+#define __CRYPTOAPI_KEYAGEEMENT_H__
+
+#include <cryptospi/cryptoplugin.h>
+
+
+/**
+The keyagreement definition. Intended to allow plug-ins
+to implement extensible keyagreement functionality, and to work with all
+known existing keyagreement algorithms, e.g. DiffieHellman, ECDH etc. A
+plug-in implementing this interface should expect the private key of one of 
+the parties to be stored in it via SetKeyL() and then the public key of the 
+other party to be used in the call to AgreeL().
+*/
+
+namespace CryptoSpi
+	{
+	class CCryptoParams;
+
+	class MKeyAgreement : public MPlugin
+		{
+	public:
+		/**
+		Set the private key for this keyagreement. Reset() is called to reinitialize the keyAgreement
+		@param aSelfPrivateKey	The private key of one of the parties
+		@param aParams	The parameters shared between both parties
+		*/
+		virtual void SetKeyL(const CKey& aSelfPrivateKey, const CCryptoParams* aParams) = 0;
+		
+		/**
+		Performs the key agreement operation.
+		@param aOtherPublicKey	The public key of the other party
+		@param aParams	The parameters shared between both parties
+		@return A pointer to a CKey instance containing the agreed key
+		*/
+		virtual CKey* AgreeL(const CKey& aOtherPublicKey, const CCryptoParams* aParams) = 0;
+		};
+
+
+	class MAsyncKeyAgreement : public MPlugin
+		{
+	public:
+
+		/**
+		Set the private key for this keyagreement. Reset() is called to reinitialize the keyAgreement
+		@param aSelfPrivateKey	The private key of one of the parties
+		@param aParams	The parameters shared between both parties
+		*/
+		virtual void SetKeyL(const CKey& aSelfPrivateKey, const CCryptoParams* aParams) = 0;
+
+		/**
+		Performs the key agreement operation.
+		@param aOtherPublicKey	The public key of the other party
+		@param aKey A pointer to a CKey instance containing the agreed key
+		@param aParams	The parameters shared between both parties
+		@param aRequestStatus 
+		*/
+		virtual void AgreeL(const CKey& aOtherPublicKey, CKey& aKey, const CCryptoParams* aParams, TRequestStatus& aRequestStatus) = 0;
+
+		/**
+		Cancel the outstanding request
+		*/	
+		virtual void Cancel() = 0;
+		};
+
+	}
+#endif //__CRYPTOAPI_KEYAGEEMENT_H__