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: #ifndef __DSASIGNERIMPL_H__
sl@0: #define __DSASIGNERIMPL_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: 
sl@0: #include "signerimpl.h"
sl@0: #include "common/inlines.h"
sl@0: 
sl@0: /**
sl@0:  * Implementation of DSA signing
sl@0:  */
sl@0: namespace SoftwareCrypto
sl@0: 	{
sl@0: 	using namespace CryptoSpi;
sl@0: 	
sl@0: 	NONSHARABLE_CLASS(CDSASignerImpl) : public CSignerImpl
sl@0: 		{
sl@0: 	public:
sl@0: 		/**
sl@0: 		Creates an instance of a DSA signer plug-in.
sl@0: 		@param aKey The private key used to sign.
sl@0: 		@return A pointer to a CDSASignerImpl instance
sl@0: 		*/
sl@0: 		static CDSASignerImpl* NewL(const CKey& aKey);
sl@0: 		
sl@0: 		/**
sl@0: 		Creates an instance of a DSA signer plug-in.
sl@0: 		@param aKey The private key used to sign.
sl@0: 		@return A pointer to a CDSASignerImpl instance
sl@0: 		*/
sl@0: 		static CDSASignerImpl* NewLC(const CKey& aKey);
sl@0: 		
sl@0: 		// Override CSignerImpl virtual functions
sl@0: 		TUid ImplementationUid() const;
sl@0: 		// End of CSignerImpl
sl@0: 		
sl@0: 		// Override MSignatureBase virtual functions
sl@0: 		void SetKeyL(const CKey& aPrivateKey);
sl@0: 		TInt GetMaximumInputLengthL() const;
sl@0: 		// End of MSignatureBase
sl@0: 		
sl@0: 		// Override MSigner virtual functions
sl@0: 		void SignL(const TDesC8& aInput, CCryptoParams& aSignature);
sl@0: 		// End of MSigner
sl@0: 		
sl@0: 		const CExtendedCharacteristics* GetExtendedCharacteristicsL();
sl@0: 		static CExtendedCharacteristics* CreateExtendedCharacteristicsL();
sl@0: 		
sl@0: 		/// Destructor
sl@0: 		~CDSASignerImpl();
sl@0: 		
sl@0: 	protected:
sl@0: 		/// Constructor
sl@0: 		CDSASignerImpl();
sl@0: 			
sl@0: 	protected:
sl@0: 		/// second phase of construction
sl@0: 		virtual void ConstructL(const CKey& aKey);
sl@0: 		
sl@0: 	private:
sl@0: 		static const TUint KSha1HashLength = 20;
sl@0: 		};
sl@0: 	}
sl@0: 
sl@0: #endif // __DSASIGNERIMPL_H__