Symaptic: os/security/crypto/weakcryptospi/source/symmetric/bufferedtransformationshim.h@bde4ae8d615e

     1 /*

     2 * Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of the License "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:

    15 *

    16 */

    19 #ifndef __BUFFEREDTRANSFORMATIONSHIM_H__

    20 #define __BUFFEREDTRANSFORMATIONSHIM_H__

    22 #include <bufferedtransformation.h>

    24 /**

    25 @file

    26 @internalComponent

    27 @released

    28 */

    30 namespace CryptoSpi

    31 	{

    32 	class CSymmetricCipher;

    33 	}

    35 /**

    36  Shim class that delegates all operations to an Crypto Spi object.

    37  This object is constructed automatically by CBufferedEncryptorShim and should

    38  not be used directly.

    39  */

    40 NONSHARABLE_CLASS(CBufferedEncryptorShim) : public CBufferedEncryptor

    41 {

    42 public:

    43 	/**

    44 	Creates a new CBufferedEncryptorShim.

    45 	N.B. It is the reponsiblity of the CALLER to check that block transform

    46 	object contains an SPI delegate and that the delegate supports the specified

    47 	padding mode.

    48 	*/

    49 	static CBufferedEncryptorShim* NewL(CBlockTransformation* aBT, CPadding* aPadding);

    51 	// From CBufferedTransformation

    52 	void Process(const TDesC8& aInput, TDes8& aOutput);

    53 	TInt MaxOutputLength(TInt aInputLength) const;

    54 	void Reset();

    55 	TInt BlockSize() const;

    56 	TInt KeySize() const;

    57 	void ProcessFinalL(const TDesC8& aInput, TDes8& aOutput);

    58 	TInt MaxFinalOutputLength(TInt aInputLength) const;

    59 private:

    60 	CBufferedEncryptorShim(CryptoSpi::CSymmetricCipher* aSymmetricCipherImpl);

    61 	void ConstructL(CBlockTransformation* aBT, CPadding* aPadding);

    63 	// owned by block transform - iBT

    64 	CryptoSpi::CSymmetricCipher* iSymmetricCipherImpl;

    65 };

    67 /**

    68  Shim class that delegates all operations to an Crypto Spi object.

    69  This object is constructed automatically by CBufferedEncryptorShim and should

    70  not be used directly.

    71  */

    72 NONSHARABLE_CLASS(CBufferedDecryptorShim) : public CBufferedDecryptor

    73 {

    74 public:

    75 	/**

    76 	Creates a new CBufferedDecryptorShim.

    77 	N.B. It is the reponsiblity of the CALLER to check that block transform

    78 	object contains an SPI delegate and that the delegate supports the specified

    79 	padding mode.

    80 	*/

    81 	static CBufferedDecryptorShim* NewL(CBlockTransformation* aBT, CPadding* aPadding);

    83 	// From CBufferedTransformation

    84 	void Process(const TDesC8& aInput, TDes8& aOutput);

    85 	TInt MaxOutputLength(TInt aInputLength) const;

    86 	void Reset();

    87 	TInt BlockSize() const;

    88 	TInt KeySize() const;

    89 	void ProcessFinalL(const TDesC8& aInput, TDes8& aOutput);

    90 	TInt MaxFinalOutputLength(TInt aInputLength) const;

    91 private:

    92 	CBufferedDecryptorShim(CryptoSpi::CSymmetricCipher* aSymmetricCipherImpl);

    93 	void ConstructL(CBlockTransformation* aBT, CPadding* aPadding);

    95 	// owned by block transform - iBT

    96 	CryptoSpi::CSymmetricCipher* iSymmetricCipherImpl;

    97 };

    99 #endif	//	__BUFFEREDTRANSFORMATIONSHIM_H__

author	sl@SLION-WIN7.fritz.box
	Fri, 15 Jun 2012 03:10:57 +0200
changeset 0	bde4ae8d615e
permissions	-rw-r--r--