/*+
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* Copyright (c) 2006-2009 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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+
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+
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#ifndef __DHIMPL_H__+
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#define __DHIMPL_H__+
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+
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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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+
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#include <e32base.h>+
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#include "keyagreementimpl.h"+
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#include "dhimpl.h"+
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+
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/**+
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 * Implementation of DH Key Agreement as described in PKCS#3.+
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 */+
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namespace SoftwareCrypto+
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	{+
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	using namespace CryptoSpi;+
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	+
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	NONSHARABLE_CLASS(CDHImpl) : public CKeyAgreementImpl+
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		{+
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	public:+
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		+
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		static CDHImpl* NewL(const CKey& aPrivateKey, const CCryptoParams* aParams);+
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		static CDHImpl* NewLC(const CKey& aPrivateKey, const CCryptoParams* aParams);+
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+
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		// Destructor+
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		~CDHImpl();+
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+
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		// from MKeyAgreement+
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		CKey* AgreeL(const CKey& aOtherPublicKey, const CCryptoParams* aParams);+
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+
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		// Override CKeyAgreementImpl virtual functions+
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		TUid ImplementationUid() const;+
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		+
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		static CExtendedCharacteristics* CreateExtendedCharacteristicsL();+
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		const CExtendedCharacteristics* GetExtendedCharacteristicsL();+
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+
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	private:+
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		/**+
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		Constructor+
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		*/+
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		CDHImpl();+
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		};+
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	}+
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+
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#endif // __DHIMPL_H__+
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