sl@0: /*
sl@0: * Copyright (c) 2006-2010 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: #ifndef __SIGNERIMPL_H__
sl@0: #define __SIGNERIMPL_H__
sl@0: 
sl@0: /**
sl@0: @file 
sl@0: @internalComponent
sl@0: @released
sl@0: */
sl@0: 
sl@0: #include <e32base.h>
sl@0: #include <e32cmn.h>
sl@0: #include <cryptospi/cryptospidef.h>
sl@0: #include <cryptospi/signerplugin.h>
sl@0: #include <padding.h>
sl@0: 
sl@0: #include "../../../source/common/inlines.h"
sl@0: 
sl@0: /**
sl@0:  * Abstract base class for signer plug-ins.
sl@0:  */
sl@0: namespace SoftwareCrypto
sl@0: 	{
sl@0: 	using namespace CryptoSpi;
sl@0: 	
sl@0: 	NONSHARABLE_CLASS(CSignerImpl) : public CBase, public MSigner
sl@0: 		{
sl@0: 	public:
sl@0: 		// Override MPlugin virtual functions
sl@0: 		void Close();
sl@0: 		void Reset(); // Always call reset in super-class if you override this
sl@0: 		TAny* GetExtension(TUid aExtensionId);
sl@0: 		void GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics);
sl@0: 		// End of MPlugin
sl@0: 
sl@0: 		// Override MSignatureBase virtual functions
sl@0: 		virtual void SetPaddingModeL(TUid aPaddingMode);
sl@0: 		virtual void SetKeyL(const CKey& aPrivateKey);
sl@0: 		virtual TInt GetMaximumInputLengthL() const;
sl@0: 		virtual TInt GetMaximumOutputLengthL() const;
sl@0: 		// End of MSignatureBase
sl@0: 
sl@0: 		/// Destructor
sl@0: 		~CSignerImpl();
sl@0: 		
sl@0: 	protected:
sl@0: 		/// Constructor
sl@0: 		CSignerImpl();
sl@0: 
sl@0: 		/**
sl@0: 		Second phase of construction
sl@0: 		@param aKey The signing key
sl@0: 		*/
sl@0: 		virtual void ConstructL(const CKey& aKey);
sl@0: 		
sl@0: 		/**
sl@0: 		Helper function implemented by concrete cipher sub-class that allows
sl@0: 		GetCharacteristicsL to return the correct characteristics object.
sl@0: 		@return The implemention uid
sl@0: 		*/
sl@0: 		virtual TUid ImplementationUid() const = 0;
sl@0: 		
sl@0: 		/**
sl@0: 		Store the signing key. The key length is also checked to meet export restrictions and
sl@0: 		to ensure that it is appropriate for the cipher.
sl@0: 		@param aKey The key
sl@0: 		*/
sl@0: 		virtual void DoSetKeyL(const CKey& aKey);
sl@0: 
sl@0: 	protected:
sl@0: 		/// the key, extracted from a CKey object
sl@0: 		CKey* iKey;
sl@0: 
sl@0: 	private:
sl@0: 		};
sl@0: 	}
sl@0: 
sl@0: #endif // __SIGNERIMPL_H__