1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/security/cryptoplugins/cryptospiplugins/source/softwarecrypto/hmacimpl.h	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,93 @@
     1.4 +/*
     1.5 +* Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
     1.6 +* All rights reserved.
     1.7 +* This component and the accompanying materials are made available
     1.8 +* under the terms of the License "Eclipse Public License v1.0"
     1.9 +* which accompanies this distribution, and is available
    1.10 +* at the URL "http://www.eclipse.org/legal/epl-v10.html".
    1.11 +*
    1.12 +* Initial Contributors:
    1.13 +* Nokia Corporation - initial contribution.
    1.14 +*
    1.15 +* Contributors:
    1.16 +*
    1.17 +* Description: 
    1.18 +* hmac implementation
    1.19 +*
    1.20 +*/
    1.21 +
    1.22 +
    1.23 +/**
    1.24 + @file
    1.25 + @internalComponent
    1.26 + @released
    1.27 +*/
    1.28 +
    1.29 +#ifndef __CRYPTOAPI_SOFTWAREHMACIMPL_H__
    1.30 +#define __CRYPTOAPI_SOFTWAREHMACIMPL_H__
    1.31 +
    1.32 +#include "softwarehashbase.h"
    1.33 +#include "keys.h"
    1.34 +
    1.35 +namespace SoftwareCrypto
    1.36 +	{
    1.37 +	using namespace CryptoSpi;
    1.38 +	
    1.39 +	/**
    1.40 +	 * This is the maximum block size currently supported by HMAC implementation.
    1.41 +	 */  
    1.42 +	const TInt KMaxBlockSize = 128;		
    1.43 +	
    1.44 +	NONSHARABLE_CLASS(CHMacImpl) : public CBase, public MSoftwareHash
    1.45 +		{		
    1.46 +	public:
    1.47 +		//NewL & NewLC
    1.48 +		static CHMacImpl* NewL(MSoftwareHash* aHash);
    1.49 +		static CHMacImpl* NewLC(MSoftwareHash* aHash);
    1.50 +		static CHMacImpl* NewL(const CKey& aKey, MSoftwareHash* aHash);
    1.51 +		static CHMacImpl* NewLC(const CKey& aKey, MSoftwareHash* aHash);
    1.52 +
    1.53 +		//From MPlugin
    1.54 +		void Reset();
    1.55 +		void Close();		
    1.56 +		void GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics);		
    1.57 +		const CExtendedCharacteristics* GetExtendedCharacteristicsL();
    1.58 +		TAny* GetExtension(TUid aExtensionId);
    1.59 +		
    1.60 +		//From MHmac
    1.61 +	    TPtrC8 Hash(const TDesC8& aMessage);
    1.62 +	    void Update(const TDesC8& aMessage);
    1.63 +		TPtrC8 Final(const TDesC8& aMessage);
    1.64 +		void SetKeyL(const CKey& aKey);
    1.65 +		void SetOperationModeL(TUid aOperationMode);
    1.66 +		MHash* ReplicateL();		
    1.67 +		MHash* CopyL();
    1.68 +				
    1.69 +	private:
    1.70 +		//Constructors
    1.71 +		CHMacImpl();
    1.72 +		CHMacImpl(const CHMacImpl& aHMacImpl);
    1.73 +		
    1.74 +		//Destructor
    1.75 +		~CHMacImpl();
    1.76 +		void RestoreState();
    1.77 +		void StoreState();
    1.78 +		void ConstructL(const CKey& aKey, MSoftwareHash* aHash);
    1.79 +		void ConstructL(MSoftwareHash* aHash);
    1.80 +		void Initialise(const TDesC8& aKey);
    1.81 +		void InitBlockSizeL();
    1.82 +		
    1.83 +	private:
    1.84 +		TUid iImplementationUid;
    1.85 +		MSoftwareHash* iDigest;
    1.86 +		
    1.87 +		TBuf8<KMaxBlockSize> iInnerPad;
    1.88 +		TBuf8<KMaxBlockSize> iOuterPad;
    1.89 +		TBuf8<KMaxBlockSize> iInnerPadCopy;
    1.90 +		TBuf8<KMaxBlockSize> iOuterPadCopy;
    1.91 +		
    1.92 +		TInt iBlockSize;
    1.93 +		};
    1.94 +	}
    1.95 +
    1.96 +#endif // __CRYPTOAPI_SOFTWAREHMACIMPL_H__