sl@0: /*
sl@0: * Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of the License "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: /**
sl@0:  @file
sl@0:  @internalComponent
sl@0:  @released
sl@0: */
sl@0: #ifndef	__RIJNDAELIMPL_H__
sl@0: #define	__RIJNDAELIMPL_H__
sl@0: #include <e32base.h>
sl@0: #include <e32cmn.h>
sl@0: #include "keys.h"
sl@0: #include "h4cipherimpl.h"
sl@0: #include "cryptodriver.h"
sl@0: 
sl@0: /**
sl@0: Plug-in class for AES (Rijndael) block cipher
sl@0: */
sl@0: namespace HwCrypto
sl@0: 	{
sl@0: 	class __NOTSHARED CH4RijndaelImpl : public CH4CipherImpl
sl@0: 		{
sl@0: 	public:
sl@0: 	
sl@0: 		/**
sl@0: 		Creates an instance of an AES (Rijndael) symmetric cipher plug-in.
sl@0: 		@param aKey The key
sl@0: 		@param aCryptoMode Whether to encrypt or decrypt
sl@0: 		@param aOperationMode The block cipher mode ECB, CBC, CTR etc
sl@0: 		@param aPadding The padding scheme to use None, SSLv3, PKCS#7
sl@0: 		@return A pointer to a CH4RijndaelImpl instance
sl@0: 		*/
sl@0: 		static CH4RijndaelImpl* NewL(const CryptoSpi::CKey& aKey, 
sl@0: 			TUid aCryptoMode, TUid aOperationMode, TUid aPadding);
sl@0: 
sl@0: 		/**
sl@0: 		Creates an instance of an AES (Rijndael) symmetric cipher plug-in.
sl@0: 		A pointer to the plug-in instance is placed on the cleanup stack.
sl@0: 		@param aKey The key
sl@0: 		@param aCryptoMode Whether to encrypt or decrypt
sl@0: 		@param aOperationMode The block cipher mode ECB, CBC, CTR etc
sl@0: 		@param aPadding The padding scheme to use None, SSLv3, PKCS#7
sl@0: 		@return A pointer to a CH4RijndaelImpl instance
sl@0: 		*/
sl@0: 		static CH4RijndaelImpl* NewLC(const CryptoSpi::CKey& aKey, 
sl@0: 			TUid aCryptoMode,	TUid aOperationMode, TUid aPadding);
sl@0: 
sl@0: 		// From CSymmetricCipherImpl
sl@0: 		TBool IsValidKeyLength(TInt aKeyBytes) const;
sl@0: 		TUid ImplementationUid() const;
sl@0: 
sl@0: 		const CExtendedCharacteristics* GetExtendedCharacteristicsL();
sl@0: 		
sl@0: 		static CExtendedCharacteristics* StaticGetExtendedCharacteristicsL();
sl@0: 		
sl@0: 		/// Destructor
sl@0: 		~CH4RijndaelImpl();
sl@0: 
sl@0: 	private:
sl@0: 		/**
sl@0: 		Constructor
sl@0: 		@param aOperationMode The mode of operation e.g. CBC
sl@0: 		@param aCryptoMode Whether to encrypt or decrypt
sl@0: 		@param aPaddingMode The padding mode to use. None, SSL, PKCS#7
sl@0: 		*/
sl@0: 		CH4RijndaelImpl(TUid aOperationMode, TUid aCryptoMode, TUid aPaddingMode);
sl@0: 			
sl@0: 		///	second phase of construction	
sl@0: 		void ConstructL(const CryptoSpi::CKey& aKey);
sl@0: 					
sl@0: 		// From CH4CipherImpl
sl@0: 		virtual void DoSetupL();
sl@0: 		virtual void DoWriteL(const TUint8* aBuffer, TUint aNumBytes);
sl@0: 		virtual void DoReadL(TDes8 &aBuffer, TUint32 aLength);
sl@0: 				
sl@0: 	private:
sl@0: 		RCryptoDriver iDriver;
sl@0: 		TBool iDriverOpen;
sl@0: 		};
sl@0: 	}
sl@0: 
sl@0: #endif //__RIJNDAELIMPL_H__