1 /*

     2 * Copyright (c) 2007-2009 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 

    21 /**

    22  @file

    23  @internalComponent

    24  @released

    25 */

    26 

    27 

    28 #ifndef __CRYPTOAPI_SOFTWARESHA224AND256IMPL_H_

    29 #define __CRYPTOAPI_SOFTWARESHA224AND256IMPL_H_

    30 

    31 

    32 #include "softwarehashbase.h"

    33 #include "shacommon.h"

    34 

    35 namespace SoftwareCrypto

    36 	{

    37 	using namespace CryptoSpi;

    38 	

    39 	const TInt KSHA256BlockSize	= 64;

    40 	const TInt KSHA224HashSize	= 28;

    41 	const TInt KSHA256HashSize	= 32;

    42 			

    43 	NONSHARABLE_CLASS(CSHA224And256Impl) : public CBase, public MSHA2Impl

    44 		{	

    45 	public:

    46 		//NewL	

    47 		static CSHA224And256Impl* NewL();

    48 		CSHA224And256Impl(const CSHA224And256Impl& aSHA256Impl);

    49 		

    50 		// Functions from MSHA2Impl

    51 		virtual void RestoreState();

    52 		virtual void StoreState();

    53 		virtual void Reset(const TAny*);

    54 		virtual void Update(const TUint8* aData,TUint aLength);

    55 		virtual const TDes8& Final(void);

    56 	

    57 	private:

    58 		//Constructors

    59 		CSHA224And256Impl();

    60 		inline void AddLength(const TUint aLength);

    61 		inline void CopyWordToHash(TUint aVal, TUint aIndex);

    62 		void Block();

    63 		void PadMessage();

    64 

    65 	private:

    66 		TBuf8<KSHA256HashSize> iHash;

    67 		TUint iA;

    68 		TUint iB;

    69 		TUint iC;

    70 		TUint iD;

    71 		TUint iE;

    72 		TUint iF;

    73 		TUint iG;

    74 		TUint iH;

    75 		TUint iData[KSHA256BlockSize];

    76 

    77 		TUint iACopy;

    78 		TUint iBCopy;

    79 		TUint iCCopy;

    80 		TUint iDCopy;

    81 		TUint iECopy;

    82 		TUint iFCopy;

    83 		TUint iGCopy;

    84 		TUint iHCopy;

    85 		TUint iNlCopy;

    86 		TUint iNhCopy;	

    87 		TUint iDataCopy[KSHA256BlockSize];

    88 		

    89 		TUint iNl;

    90 		TUint64 iNh;

    91 		};

    92 	}

    93 

    94 #endif // __CRYPTOAPI_SOFTWARESHA224AND256IMPL_H_