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/*
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* Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
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* All rights reserved.
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* This component and the accompanying materials are made available
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* under the terms of the License "Eclipse Public License v1.0"
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* which accompanies this distribution, and is available
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* at the URL "http://www.eclipse.org/legal/epl-v10.html".
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*
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* Initial Contributors:
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* Nokia Corporation - initial contribution.
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*
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* Contributors:
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*
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* Description:
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*
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*/
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#ifndef __DSAKEYPAIRGENIMPL_H__
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#define __DSAKEYPAIRGENIMPL_H__
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/**
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@file
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@internalComponent
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@released
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*/
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#include <e32base.h>
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#include <e32cmn.h>
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#include "keypairgenimpl.h"
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//#include <asymmetrickeys.h>
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/**
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* Implementation of DSA key pair generation.
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*/
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namespace SoftwareCrypto
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{
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NONSHARABLE_CLASS(CDSAPrimeCertificate) : public CBase
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{
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public:
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/**
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Creates a new DSA prime certificate from a specified
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seed and counter value.
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@param aSeed The seed from a DSA key generation process
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@param aCounter The counter value from a DSA key generation process
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@return A pointer to a CDSAPrimeCertificate instance
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*/
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static CDSAPrimeCertificate* NewL(const TDesC8& aSeed, TUint aCounter);
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/**
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Creates a new DSA prime certificate from a specified
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seed and counter value.
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The returned pointer is put onto the cleanup stack.
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@param aSeed The seed from a DSA key generation process
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@param aCounter The counter value from a DSA key generation process
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@return A pointer to a CDSAPrimeCertificate instance
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*/
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static CDSAPrimeCertificate* NewLC(const TDesC8& aSeed, TUint aCounter);
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/**
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Gets the seed of the DSA prime certificate
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@return The seed
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*/
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const TDesC8& Seed() const;
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/**
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Gets the counter value of the DSA prime certificate
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@return The counter's value
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*/
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TUint Counter() const;
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/**
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Destructor
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*/
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~CDSAPrimeCertificate();
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protected:
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/**
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Constructor
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@param aCounter The DSA key generation counter
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*/
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CDSAPrimeCertificate(TUint aCounter);
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/**
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Default constructor
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*/
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CDSAPrimeCertificate();
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void ConstructL(const TDesC8& aSeed);
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protected:
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/**
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The DSA key generation seed
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*/
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const HBufC8* iSeed;
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/**
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The DSA key generation counter
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*/
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TUint iCounter;
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private:
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CDSAPrimeCertificate(const CDSAPrimeCertificate&);
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CDSAPrimeCertificate& operator=(const CDSAPrimeCertificate&);
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};
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NONSHARABLE_CLASS(CDSAKeyPairGenImpl) : public CKeyPairGenImpl
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{
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public:
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static CDSAKeyPairGenImpl* NewL();
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static CDSAKeyPairGenImpl* NewLC();
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// from MPlugin
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void Reset();
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// from MKeyPairGenerator
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void GenerateKeyPairL(TInt aKeySize, const CCryptoParams& aKeyParameters, CKeyPair*& aKeyPair);
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// Override CKeyPairGenImpl virtual functions
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TUid ImplementationUid() const;
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const CExtendedCharacteristics* GetExtendedCharacteristicsL();
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static CExtendedCharacteristics* CreateExtendedCharacteristicsL();
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// Destructor
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~CDSAKeyPairGenImpl();
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static TBool GeneratePrimesL(const TDesC8& aSeed,
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TUint& aCounter,
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RInteger& aP,
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TUint aL,
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RInteger& aQ,
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TBool aUseInputCounter=EFalse);
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static TBool ValidPrimeLength(TUint aPrimeBits);
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private:
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/**
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Constructor
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*/
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CDSAKeyPairGenImpl();
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/// second phase of construction
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void ConstructL();
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CDSAPrimeCertificate* iPrimeCertificate;
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};
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}
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#endif // __DSAKEYPAIRGENIMPL_H__
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