--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/cryptoplugins/cryptospiplugins/source/softwarecrypto/dsakeypairgenimpl.h	Fri Nov 06 13:21:00 2009 +0200
@@ -0,0 +1,153 @@
+/*
+* Copyright (c) 2007-2009 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 __DSAKEYPAIRGENIMPL_H__
+#define __DSAKEYPAIRGENIMPL_H__
+
+/**
+@file 
+@internalComponent
+@released
+*/
+
+#include <e32base.h>
+#include <e32cmn.h>
+#include "keypairgenimpl.h"
+//#include <asymmetrickeys.h>
+
+/**
+ * Implementation of DSA key pair generation.
+ */
+namespace SoftwareCrypto
+	{
+	NONSHARABLE_CLASS(CDSAPrimeCertificate) : public CBase
+		{
+	public:
+		/** 
+		Creates a new DSA prime certificate from a specified 
+		seed and counter value.
+ 
+		@param aSeed	The seed from a DSA key generation process
+		@param aCounter	The counter value from a DSA key generation process
+		@return			A pointer to a CDSAPrimeCertificate instance
+		*/
+		static CDSAPrimeCertificate* NewL(const TDesC8& aSeed, TUint aCounter);
+
+		/** 
+		Creates a new DSA prime certificate from a specified 
+		seed and counter value.
+		
+		The returned pointer is put onto the cleanup stack.
+		
+		@param aSeed		The seed from a DSA key generation process
+		@param aCounter	The counter value from a DSA key generation process
+		@return			A pointer to a CDSAPrimeCertificate instance
+		*/
+		static CDSAPrimeCertificate* NewLC(const TDesC8& aSeed, TUint aCounter);
+
+		/**
+		Gets the seed of the DSA prime certificate
+		@return	The seed
+		*/
+		const TDesC8& Seed() const;
+		
+		/**
+		Gets the counter value of the DSA prime certificate
+
+		@return	The counter's value
+		*/
+		TUint Counter() const;
+		
+		/** 
+		Destructor 
+		*/
+		~CDSAPrimeCertificate();
+		
+	protected:
+		/** 
+		Constructor
+		@param aCounter	The DSA key generation counter
+		*/
+		CDSAPrimeCertificate(TUint aCounter);
+
+		/**
+		Default constructor
+		*/
+		CDSAPrimeCertificate();
+
+		void ConstructL(const TDesC8& aSeed);
+		
+	protected:
+		/** 
+		The DSA key generation seed 
+		*/
+		const HBufC8* iSeed;
+		/** 
+		The DSA key generation counter 
+		*/
+		TUint iCounter;
+	private:
+		CDSAPrimeCertificate(const CDSAPrimeCertificate&);
+		CDSAPrimeCertificate& operator=(const CDSAPrimeCertificate&);
+		};
+		
+	NONSHARABLE_CLASS(CDSAKeyPairGenImpl) : public CKeyPairGenImpl
+		{
+	public:
+	
+		static CDSAKeyPairGenImpl* NewL();
+		static CDSAKeyPairGenImpl* NewLC();
+
+		// from MPlugin
+		void Reset();
+
+		// from MKeyPairGenerator
+		void GenerateKeyPairL(TInt aKeySize, const CCryptoParams& aKeyParameters, CKeyPair*& aKeyPair);
+		
+		// Override CKeyPairGenImpl virtual functions
+		TUid ImplementationUid() const;
+		
+		const CExtendedCharacteristics* GetExtendedCharacteristicsL();
+		static CExtendedCharacteristics* CreateExtendedCharacteristicsL();
+		
+		// Destructor
+		~CDSAKeyPairGenImpl();
+
+		static TBool GeneratePrimesL(const TDesC8& aSeed,
+									 TUint& aCounter, 
+									 RInteger& aP, 
+									 TUint aL, 
+									 RInteger& aQ, 
+									 TBool aUseInputCounter=EFalse);
+									 
+		static TBool ValidPrimeLength(TUint aPrimeBits);
+		
+	private:
+		/**
+		Constructor
+		*/
+		CDSAKeyPairGenImpl();
+			
+		/// second phase of construction
+		void ConstructL();
+		
+		CDSAPrimeCertificate* iPrimeCertificate;
+		};
+	}
+
+#endif // __DSAKEYPAIRGENIMPL_H__