1 /*

     2 * Copyright (c) 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 */

    17 

    18 

    19 /**

    20  @file

    21  @internalComponent

    22  @released

    23 */

    24 #ifndef	CDUMMYECCIMPL_H

    25 #define	CDUMMYECCIMPL_H

    26 

    27 #include <e32base.h>

    28 #include <e32cmn.h>

    29 #include <cryptospi/cryptospidef.h>

    30 #include "keys.h"

    31 #include "asymmetriccipherplugin.h"

    32 

    33 namespace DummyEccHwCrypto

    34 	{

    35 	using namespace CryptoSpi;

    36 	

    37 	/**

    38 	 * Implements the MAsymmetricCipher interface.

    39 	 * 

    40 	 * This should be used to create the cipher object to perform 

    41 	 * encryption / decryption using ECC.

    42 	 */

    43 	NONSHARABLE_CLASS(CDummyECCCipherImpl) : public CBase, public MAsymmetricCipher

    44 		{

    45 	public:

    46 	    static CDummyECCCipherImpl* NewL(const CKey& aKey, TUid aCryptoMode, TUid aPaddingMode);

    47 	    static CDummyECCCipherImpl* NewLC(const CKey& aKey, TUid aCryptoMode, TUid aPaddingMode);

    48 	    

    49 	    // MPlugin Interface

    50 	    void Close();

    51 	    void Reset();

    52 	    void GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics);

    53 	    const CExtendedCharacteristics* GetExtendedCharacteristicsL();

    54 	    TAny* GetExtension(TUid aExtensionId); 

    55 	    // End of MPlugin Interface

    56 	    

    57 	    // MAsymmetricCipherBase Interface

    58 	    void SetKeyL(const CKey& aKey);

    59 	    void SetCryptoModeL(TUid aCryptoMode);

    60 	    void SetPaddingModeL(TUid aPaddingMode);

    61 	    TInt GetMaximumInputLengthL() const;

    62 	    TInt GetMaximumOutputLengthL() const;

    63 	    // End of MAsymmetricCipherBase Interface

    64 	    

    65 		// MAsymmetricCipher Interface

    66 		void ProcessL(const TDesC8& aInput, TDes8& aOutput);

    67 		

    68 		TUid ImplementationUid() const;

    69 		// Destructor

    70 		~CDummyECCCipherImpl();

    71 

    72 	private:

    73 		CDummyECCCipherImpl(TUid aCryptoMode, TUid aPaddingMode);

    74 		void ConstructL(const CKey& aKey);

    75 		void DecryptL(const TDesC8& aInput, TDes8& aOutput);

    76 		void EncryptL(const TDesC8& aInput, TDes8& aOutput);

    77 		

    78 	private:

    79 		/* The key extracted from a CKey object. This would just have 

    80 		 * a handle to the key stored in hardware. Hence the actual key 

    81 		 * would not be available to the user of this cryptoSPI plugin.

    82 		 */

    83 	    CKey* iKey;

    84 		

    85 		/// encryption or decryption

    86 		TUid iCryptoMode;		

    87 

    88 		/* The current padding scheme. This is not being used in the 

    89 		 * reference implementation.

    90 		 */

    91 		TUid iPaddingMode;

    92 		};

    93 

    94 			

    95 	}

    96 

    97 #endif	//	CDUMMYECCIMPL_H