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 __CRYPTO_SHA224AND256_H_

    29 #define __CRYPTO_SHA224AND256_H_

    30 

    31 

    32 #include "shacommon.h"

    33 

    34 const TInt KSHA256BlockSize	= 64;

    35 const TInt KSHA224HashSize	= 28;

    36 const TInt KSHA256HashSize	= 32;

    37 		

    38 NONSHARABLE_CLASS(CSHA224And256) : public CBase, public MSHA2Impl

    39 	{	

    40 public:

    41 	//NewL	

    42 	static CSHA224And256* NewL();

    43 	CSHA224And256(const CSHA224And256& aSHAImpl);

    44 	

    45 	// Functions from MSHA2Impl

    46 	virtual void RestoreState();

    47 	virtual void StoreState();

    48 	virtual void Reset(const TAny*);

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

    50 	virtual const TDes8& Final(void);

    51 

    52 private:

    53 	//Constructors

    54 	CSHA224And256();

    55 	inline void AddLength(const TUint aLength);

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

    57 	void Block();

    58 	void PadMessage();

    59 

    60 private:

    61 	TBuf8<KSHA256HashSize> iHash;

    62 	TUint iA;

    63 	TUint iB;

    64 	TUint iC;

    65 	TUint iD;

    66 	TUint iE;

    67 	TUint iF;

    68 	TUint iG;

    69 	TUint iH;

    70 	TUint iData[KSHA256BlockSize];

    71 

    72 	TUint iACopy;

    73 	TUint iBCopy;

    74 	TUint iCCopy;

    75 	TUint iDCopy;

    76 	TUint iECopy;

    77 	TUint iFCopy;

    78 	TUint iGCopy;

    79 	TUint iHCopy;

    80 	TUint iNlCopy;

    81 	TUint iNhCopy;	

    82 	TUint iDataCopy[KSHA256BlockSize];

    83 	

    84 	TUint iNl;

    85 	TUint64 iNh;

    86 	};

    87 

    88 #endif // __CRYPTO_SHA224AND256_H_