os/security/cryptoplugins/cryptospiplugins/source/softwarecrypto/keyagreementimpl.h
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
     1 /*
     2 * Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
     3 * All rights reserved.
     4 * This component and the accompanying materials are made available
     5 * under the terms of the License "Eclipse Public License v1.0"
     6 * which accompanies this distribution, and is available
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
     8 *
     9 * Initial Contributors:
    10 * Nokia Corporation - initial contribution.
    11 *
    12 * Contributors:
    13 *
    14 * Description: 
    15 *
    16 */
    17 
    18 
    19 #ifndef __KEYAGREEMENTIMPL_H__
    20 #define __KEYAGREEMENTIMPL_H__
    21 
    22 /**
    23 @file 
    24 @internalComponent
    25 @released
    26 */
    27 
    28 #include <e32base.h>
    29 #include <cryptospi/cryptospidef.h>
    30 #include "keys.h"
    31 #include "keyagreementplugin.h"
    32 
    33 /**
    34  * Abstract base class for key agreement plug-ins.
    35  */
    36 namespace SoftwareCrypto
    37 	{
    38 	using namespace CryptoSpi;
    39 	
    40 	NONSHARABLE_CLASS(CKeyAgreementImpl) : public CBase, public MKeyAgreement
    41 		{
    42 	public:
    43 		
    44 		// Override MPlugin virtual functions
    45 		void Close();
    46 		void Reset(); // Always call reset in super-class if you override this
    47 		TAny* GetExtension(TUid aExtensionId);
    48 		void GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics);
    49 		// End of MPlugin
    50 
    51 		// Override MKeyAgreement virtual functions
    52 		void SetKeyL(const CKey& aSelfPrivateKey, const CCryptoParams* aParams);
    53 		// End of MKeyAgreement
    54 
    55 		/// Destructor
    56 		~CKeyAgreementImpl();
    57 		
    58 	protected:
    59 		/**
    60 		Constructor
    61 		*/
    62 		CKeyAgreementImpl();
    63 			
    64 		/**
    65 		Second phase of construction. Always call ConstructL in the super-class
    66 		if your override this method.
    67 		@param aPrivateKey The private key of one of the parties
    68 		@param aParams	The parameters shared between both parties
    69 		*/
    70 		virtual void ConstructL(const CKey& aPrivateKey, const CCryptoParams* aParams);
    71 
    72 		/**
    73 		Helper function implemented by concrete cipher sub-class that allows
    74 		GetCharacteristicsL to return the correct characteristics object.
    75 		@return The implemention uid
    76 		*/
    77 		virtual TUid ImplementationUid() const = 0;
    78 
    79 	private:
    80 
    81 	protected:
    82 		CKey* iPrivateKey;
    83 		CCryptoParams* iSharedParams;	// common parameters between our private key and their public key
    84 		};
    85 	}
    86 
    87 #endif	//	__KEYAGREEMENTIMPL_H__