/*
* Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of the License "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description:
* rijndael shim classes definition
*
*/
/**
@file
@internalComponent
@released
*/
#ifndef __RIJNDAELSHIM_H__
#define __RIJNDAELSHIM_H__
#include <rijndael.h>
namespace CryptoSpi
{
class CSymmetricCipher;
class CKey;
}
NONSHARABLE_CLASS(CAESEncryptorShim) : public CAESEncryptor
{
public:
/**
Creates an CAESEncryptorShim object which has the same interface
as AESEncryptor but delegates all work to a Crypto SPI plug-in.
@param aKey The encryption key
@return A pointer to a CAESEncryptorShim instance
*/
static CAESEncryptorShim* NewL(const TDesC8& aKey);
/**
Creates an CAESEncryptorShim object which has the same interface
as AESEncryptor but delegates all work to a Crypto SPI plug-in.
A pointer to the new object is placed on the cleanup stack
@param aKey The encryption key
@return A pointer to a CAESEncryptorShim instance
*/
static CAESEncryptorShim* NewLC(const TDesC8& aKey);
// From CBlockTransform
TInt BlockSize() const;
void Transform(TDes8& aBlock);
void Reset(void);
TInt KeySize(void) const;
/// Destructor
~CAESEncryptorShim();
private:
/// Constructor
CAESEncryptorShim();
void ConstructL(const TDesC8& aKey);
// From CBase
TInt Extension_(TUint aExtensionId, TAny*& a0, TAny* a1);
private:
/// SPI delegate
CryptoSpi::CSymmetricCipher* iSymmetricCipherImpl;
/// SPI requires all key to passed as key-objects
CryptoSpi::CKey* iKey;
/// Temporary output block, SPI does not overwrite input
/// AES uses 64bit blocks
TBuf8<16> iOutputBlock;
};
NONSHARABLE_CLASS(CAESDecryptorShim) : public CAESDecryptor
{
public:
/**
Creates an CAESDecryptorShim object which has the same interface
as AESDecryptor but delegates all work to a Crypto SPI plug-in.
@param aKey The decryption key
@return A pointer to a CAESDecryptorShim instance
*/
static CAESDecryptorShim* NewL(const TDesC8& aKey);
/**
Creates an CAESDecryptorShim object which has the same interface
as AESDecryptor but delegates all work to a Crypto SPI plug-in.
A pointer to the new object is placed on the cleanup stack
@param aKey The decryption key
@return A pointer to a CAESDecryptorShim instance
*/
static CAESDecryptorShim* NewLC(const TDesC8& aKey);
// From CBlockTransform
TInt BlockSize() const;
void Transform(TDes8& aBlock);
void Reset(void);
TInt KeySize(void) const;
/// Destructor
~CAESDecryptorShim();
private:
/// Constructor
CAESDecryptorShim();
void ConstructL(const TDesC8& aKey);
/**
From CBase, to allow CBufferedTransform & CBlockChainingMode
to determine whether the functionality may be delegated to
the SPI object.
*/
TInt Extension_(TUint aExtensionId, TAny*& a0, TAny* a1);
private:
/// SPI delegate
CryptoSpi::CSymmetricCipher* iSymmetricCipherImpl;
/// SPI requires all key to passed as key-objects
CryptoSpi::CKey* iKey;
/// Temporary output block, SPI does not overwrite input
/// AES uses 64bit blocks
TBuf8<16> iOutputBlock;
};
#endif // __RIJNDAELSHIM_H__