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 * Software md2 implementation

    16 *

    17 */

    18 

    19 

    20 /**

    21  @file

    22  @internalComponent

    23  @released

    24 */

    25 

    26 #ifndef __CRYPTOAPI_SOFTWARESHA1IMPL_H__

    27 #define __CRYPTOAPI_SOFTWARESHA1IMPL_H__

    28 

    29 #include "softwarehashbase.h"

    30 

    31 namespace SoftwareCrypto

    32 	{

    33 	using namespace CryptoSpi;

    34 	

    35 	const TInt KSHA1BlockSize = 16;

    36 	const TInt KSHA1HashSize = 20;

    37 			

    38 	NONSHARABLE_CLASS(CSHA1Impl) : public CBase, public MSoftwareHash

    39 		{		

    40 	public:

    41 		//NewL & NewLC	

    42 		static CSHA1Impl* NewL();

    43 		static CSHA1Impl* NewLC();

    44 		

    45 		//From MPlugin

    46 		void Reset();

    47 		void Close();		

    48 		void GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics);		

    49 		static CExtendedCharacteristics* CreateExtendedCharacteristicsL();

    50 		const CExtendedCharacteristics* GetExtendedCharacteristicsL();

    51 		TAny* GetExtension(TUid aExtensionId);

    52 		

    53 		//From MHash

    54 	    TPtrC8 Hash(const TDesC8& aMessage);

    55 	    void Update(const TDesC8& aMessage);

    56 		TPtrC8 Final(const TDesC8& aMessage);

    57 		MHash* ReplicateL();		

    58 		MHash* CopyL();

    59 		void SetKeyL(const CKey& aKey);

    60 		void SetOperationModeL(TUid aOperationMode);		

    61 		

    62 		//From MSoftwareHash

    63 		void RestoreState();

    64 		void StoreState();

    65 		

    66 	private:

    67 		//Constructors

    68 		CSHA1Impl();

    69 		CSHA1Impl(const CSHA1Impl& aSHA1Impl);

    70 		

    71 		//Destructor

    72 		~CSHA1Impl();

    73 		

    74 		TUid ImplementationUid();

    75 		

    76 		void DoUpdate(const TUint8* aData,TUint aLength);

    77 		void DoFinal(void);

    78 		void Block();

    79 

    80 		

    81 	private:

    82 		TBuf8<KSHA1HashSize> iHash;

    83 		TUint iA;

    84 		TUint iB;

    85 		TUint iC;

    86 		TUint iD;

    87 		TUint iE;

    88 		TUint iNl;

    89 		TUint iNh;

    90 		TUint iData[KSHA1BlockSize*5];

    91 

    92 		TUint iACopy;

    93 		TUint iBCopy;

    94 		TUint iCCopy;

    95 		TUint iDCopy;

    96 		TUint iECopy;

    97 		TUint iNlCopy;

    98 		TUint iNhCopy;	

    99 		TUint iDataCopy[KSHA1BlockSize*5];

   100 		};

   101 	}

   102 #endif // __CRYPTOAPI_SOFTWARESHA1IMPL_H__