diff -r da2ae96f639b -r cd501b96611d cryptoplugins/cryptospiplugins/source/softwarecrypto/signerimpl.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cryptoplugins/cryptospiplugins/source/softwarecrypto/signerimpl.h	Fri Nov 06 13:21:00 2009 +0200
@@ -0,0 +1,95 @@
+/*
+* 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: 
+*
+*/
+
+
+#ifndef __SIGNERIMPL_H__
+#define __SIGNERIMPL_H__
+
+/**
+@file 
+@internalComponent
+@released
+*/
+
+#include <e32base.h>
+#include <e32cmn.h>
+#include <cryptospi/cryptospidef.h>
+#include "signerplugin.h"
+#include <padding.h>
+
+#include "common/inlines.h"
+
+/**
+ * Abstract base class for signer plug-ins.
+ */
+namespace SoftwareCrypto
+	{
+	using namespace CryptoSpi;
+	
+	NONSHARABLE_CLASS(CSignerImpl) : public CBase, public MSigner
+		{
+	public:
+		// Override MPlugin virtual functions
+		void Close();
+		void Reset(); // Always call reset in super-class if you override this
+		TAny* GetExtension(TUid aExtensionId);
+		void GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics);
+		// End of MPlugin
+
+		// Override MSignatureBase virtual functions
+		virtual void SetPaddingModeL(TUid aPaddingMode);
+		virtual void SetKeyL(const CKey& aPrivateKey);
+		virtual TInt GetMaximumInputLengthL() const;
+		virtual TInt GetMaximumOutputLengthL() const;
+		// End of MSignatureBase
+
+		/// Destructor
+		~CSignerImpl();
+		
+	protected:
+		/// Constructor
+		CSignerImpl();
+
+		/**
+		Second phase of construction
+		@param aKey The signing key
+		*/
+		virtual void ConstructL(const CKey& aKey);
+		
+		/**
+		Helper function implemented by concrete cipher sub-class that allows
+		GetCharacteristicsL to return the correct characteristics object.
+		@return The implemention uid
+		*/
+		virtual TUid ImplementationUid() const = 0;
+		
+		/**
+		Store the signing key. The key length is also checked to meet export restrictions and
+		to ensure that it is appropriate for the cipher.
+		@param aKey The key
+		*/
+		virtual void DoSetKeyL(const CKey& aKey);
+
+	protected:
+		/// the key, extracted from a CKey object
+		CKey* iKey;
+
+	private:
+		};
+	}
+
+#endif // __SIGNERIMPL_H__