1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/security/crypto/weakcryptospi/source/symmetric/bufferedtransformationshim.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,99 @@
     1.4 +/*
     1.5 +* Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.6 +* All rights reserved.
     1.7 +* This component and the accompanying materials are made available
     1.8 +* under the terms of the License "Eclipse Public License v1.0"
     1.9 +* which accompanies this distribution, and is available
    1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.11 +*
    1.12 +* Initial Contributors:
    1.13 +* Nokia Corporation - initial contribution.
    1.14 +*
    1.15 +* Contributors:
    1.16 +*
    1.17 +* Description: 
    1.18 +*
    1.19 +*/
    1.20 +
    1.21 +
    1.22 +#ifndef __BUFFEREDTRANSFORMATIONSHIM_H__
    1.23 +#define __BUFFEREDTRANSFORMATIONSHIM_H__
    1.24 +
    1.25 +#include <bufferedtransformation.h>
    1.26 +
    1.27 +/**
    1.28 +@file
    1.29 +@internalComponent
    1.30 +@released
    1.31 +*/
    1.32 +
    1.33 +namespace CryptoSpi 
    1.34 +	{
    1.35 +	class CSymmetricCipher;
    1.36 +	}
    1.37 +
    1.38 +/**
    1.39 + Shim class that delegates all operations to an Crypto Spi object.
    1.40 + This object is constructed automatically by CBufferedEncryptorShim and should
    1.41 + not be used directly.
    1.42 + */
    1.43 +NONSHARABLE_CLASS(CBufferedEncryptorShim) : public CBufferedEncryptor
    1.44 +{
    1.45 +public:
    1.46 +	/**
    1.47 +	Creates a new CBufferedEncryptorShim.
    1.48 +	N.B. It is the reponsiblity of the CALLER to check that block transform
    1.49 +	object contains an SPI delegate and that the delegate supports the specified
    1.50 +	padding mode.
    1.51 +	*/
    1.52 +	static CBufferedEncryptorShim* NewL(CBlockTransformation* aBT, CPadding* aPadding);
    1.53 +	
    1.54 +	// From CBufferedTransformation
    1.55 +	void Process(const TDesC8& aInput, TDes8& aOutput);
    1.56 +	TInt MaxOutputLength(TInt aInputLength) const;
    1.57 +	void Reset();
    1.58 +	TInt BlockSize() const;
    1.59 +	TInt KeySize() const;	
    1.60 +	void ProcessFinalL(const TDesC8& aInput, TDes8& aOutput);
    1.61 +	TInt MaxFinalOutputLength(TInt aInputLength) const;
    1.62 +private:	
    1.63 +	CBufferedEncryptorShim(CryptoSpi::CSymmetricCipher* aSymmetricCipherImpl);
    1.64 +	void ConstructL(CBlockTransformation* aBT, CPadding* aPadding);
    1.65 +	
    1.66 +	// owned by block transform - iBT
    1.67 +	CryptoSpi::CSymmetricCipher* iSymmetricCipherImpl;
    1.68 +};
    1.69 +
    1.70 +/**
    1.71 + Shim class that delegates all operations to an Crypto Spi object.
    1.72 + This object is constructed automatically by CBufferedEncryptorShim and should
    1.73 + not be used directly.
    1.74 + */
    1.75 +NONSHARABLE_CLASS(CBufferedDecryptorShim) : public CBufferedDecryptor
    1.76 +{
    1.77 +public:
    1.78 +	/**
    1.79 +	Creates a new CBufferedDecryptorShim.
    1.80 +	N.B. It is the reponsiblity of the CALLER to check that block transform
    1.81 +	object contains an SPI delegate and that the delegate supports the specified
    1.82 +	padding mode.
    1.83 +	*/
    1.84 +	static CBufferedDecryptorShim* NewL(CBlockTransformation* aBT, CPadding* aPadding);
    1.85 +	
    1.86 +	// From CBufferedTransformation	
    1.87 +	void Process(const TDesC8& aInput, TDes8& aOutput);
    1.88 +	TInt MaxOutputLength(TInt aInputLength) const;
    1.89 +	void Reset();
    1.90 +	TInt BlockSize() const;
    1.91 +	TInt KeySize() const;	
    1.92 +	void ProcessFinalL(const TDesC8& aInput, TDes8& aOutput);
    1.93 +	TInt MaxFinalOutputLength(TInt aInputLength) const;
    1.94 +private:	
    1.95 +	CBufferedDecryptorShim(CryptoSpi::CSymmetricCipher* aSymmetricCipherImpl);
    1.96 +	void ConstructL(CBlockTransformation* aBT, CPadding* aPadding);
    1.97 +	
    1.98 +	// owned by block transform - iBT
    1.99 +	CryptoSpi::CSymmetricCipher* iSymmetricCipherImpl;
   1.100 +};
   1.101 +
   1.102 +#endif	//	__BUFFEREDTRANSFORMATIONSHIM_H__