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 *

    16 */

    17 

    18 

    19 #ifndef __DSAVERIFYIMPL_H__

    20 #define __DSAVERIFYIMPL_H__

    21 

    22 /**

    23 @file 

    24 @internalComponent

    25 @released

    26 */

    27 

    28 #include <e32base.h>

    29 #include <e32cmn.h>

    30 #include <cryptospi/cryptospidef.h>

    31 

    32 #include "verifierimpl.h"

    33 #include "common/inlines.h"

    34 

    35 /**

    36  * Implementation of DSA verification

    37  */

    38 namespace SoftwareCrypto

    39 	{

    40 	using namespace CryptoSpi;

    41 	

    42 	NONSHARABLE_CLASS(CDSAVerifierImpl) : public CVerifierImpl

    43 		{

    44 	public:

    45 		/**

    46 		Creates an instance of a DSA verifier plug-in.

    47 		@param aKey The key

    48 		@return A pointer to a CDSAVerifierImpl instance

    49 		*/

    50 		static CDSAVerifierImpl* NewL(const CKey& aKey);

    51 

    52 		/**

    53 		Creates an instance of a DSA verifier plug-in.

    54 		@param aKey The key

    55 		@return A pointer to a CDSAVerifierImpl instance

    56 		*/

    57 		static CDSAVerifierImpl* NewLC(const CKey& aKey);

    58 		

    59 		// Override CVerifierImpl virtual functions

    60 		TUid ImplementationUid() const;

    61 		// End of CVerifierImpl

    62 		

    63 		// Override MSignatureBase virtual functions

    64 		void SetKeyL(const CKey& aPublicKey);

    65 		virtual TInt GetMaximumInputLengthL() const;

    66 

    67 		// End of MSignatureBase

    68 		

    69 		// Override MSigner virtual functions

    70 		void VerifyL(const TDesC8& aInput, const CCryptoParams& aSignature, TBool& aVerificationResult);

    71 		void InverseSignL(HBufC8*& aOutput, const CCryptoParams& aSignature);

    72 		// End of MSigner

    73 		

    74 		const CExtendedCharacteristics* GetExtendedCharacteristicsL();

    75 		static CExtendedCharacteristics* CreateExtendedCharacteristicsL();

    76 		

    77 		/// Destructor

    78 		~CDSAVerifierImpl();

    79 		

    80 	protected:

    81 		/// Constructor

    82 		CDSAVerifierImpl();

    83 		

    84 		/// second phase of construction

    85 		virtual void ConstructL(const CKey& aKey);

    86 			

    87 	private:

    88 		static const TUint KSha1HashLength = 20;	

    89 		};

    90 	}

    91 

    92 #endif // __DSAVERIFYIMPL_H__