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/*
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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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#ifndef __BUFFEREDTRANSFORMATIONSHIM_H__
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#define __BUFFEREDTRANSFORMATIONSHIM_H__
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#include <bufferedtransformation.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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namespace CryptoSpi
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{
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class CSymmetricCipher;
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}
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/**
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Shim class that delegates all operations to an Crypto Spi object.
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This object is constructed automatically by CBufferedEncryptorShim and should
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not be used directly.
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*/
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NONSHARABLE_CLASS(CBufferedEncryptorShim) : public CBufferedEncryptor
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{
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public:
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/**
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Creates a new CBufferedEncryptorShim.
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N.B. It is the reponsiblity of the CALLER to check that block transform
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object contains an SPI delegate and that the delegate supports the specified
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padding mode.
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*/
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static CBufferedEncryptorShim* NewL(CBlockTransformation* aBT, CPadding* aPadding);
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// From CBufferedTransformation
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void Process(const TDesC8& aInput, TDes8& aOutput);
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TInt MaxOutputLength(TInt aInputLength) const;
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void Reset();
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TInt BlockSize() const;
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TInt KeySize() const;
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void ProcessFinalL(const TDesC8& aInput, TDes8& aOutput);
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TInt MaxFinalOutputLength(TInt aInputLength) const;
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private:
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CBufferedEncryptorShim(CryptoSpi::CSymmetricCipher* aSymmetricCipherImpl);
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void ConstructL(CBlockTransformation* aBT, CPadding* aPadding);
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// owned by block transform - iBT
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CryptoSpi::CSymmetricCipher* iSymmetricCipherImpl;
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};
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/**
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Shim class that delegates all operations to an Crypto Spi object.
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This object is constructed automatically by CBufferedEncryptorShim and should
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not be used directly.
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*/
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NONSHARABLE_CLASS(CBufferedDecryptorShim) : public CBufferedDecryptor
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{
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public:
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/**
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Creates a new CBufferedDecryptorShim.
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N.B. It is the reponsiblity of the CALLER to check that block transform
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object contains an SPI delegate and that the delegate supports the specified
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padding mode.
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*/
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static CBufferedDecryptorShim* NewL(CBlockTransformation* aBT, CPadding* aPadding);
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// From CBufferedTransformation
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void Process(const TDesC8& aInput, TDes8& aOutput);
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TInt MaxOutputLength(TInt aInputLength) const;
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void Reset();
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TInt BlockSize() const;
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TInt KeySize() const;
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void ProcessFinalL(const TDesC8& aInput, TDes8& aOutput);
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TInt MaxFinalOutputLength(TInt aInputLength) const;
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private:
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CBufferedDecryptorShim(CryptoSpi::CSymmetricCipher* aSymmetricCipherImpl);
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void ConstructL(CBlockTransformation* aBT, CPadding* aPadding);
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// owned by block transform - iBT
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CryptoSpi::CSymmetricCipher* iSymmetricCipherImpl;
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};
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#endif // __BUFFEREDTRANSFORMATIONSHIM_H__
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