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 __DSASIGNERIMPL_H__

    20 #define __DSASIGNERIMPL_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 "signerimpl.h"

    33 #include "common/inlines.h"

    34 

    35 /**

    36  * Implementation of DSA signing

    37  */

    38 namespace SoftwareCrypto

    39 	{

    40 	using namespace CryptoSpi;

    41 	

    42 	NONSHARABLE_CLASS(CDSASignerImpl) : public CSignerImpl

    43 		{

    44 	public:

    45 		/**

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

    47 		@param aKey The private key used to sign.

    48 		@return A pointer to a CDSASignerImpl instance

    49 		*/

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

    51 		

    52 		/**

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

    54 		@param aKey The private key used to sign.

    55 		@return A pointer to a CDSASignerImpl instance

    56 		*/

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

    58 		

    59 		// Override CSignerImpl virtual functions

    60 		TUid ImplementationUid() const;

    61 		// End of CSignerImpl

    62 		

    63 		// Override MSignatureBase virtual functions

    64 		void SetKeyL(const CKey& aPrivateKey);

    65 		TInt GetMaximumInputLengthL() const;

    66 		// End of MSignatureBase

    67 		

    68 		// Override MSigner virtual functions

    69 		void SignL(const TDesC8& aInput, CCryptoParams& aSignature);

    70 		// End of MSigner

    71 		

    72 		const CExtendedCharacteristics* GetExtendedCharacteristicsL();

    73 		static CExtendedCharacteristics* CreateExtendedCharacteristicsL();

    74 		

    75 		/// Destructor

    76 		~CDSASignerImpl();

    77 		

    78 	protected:

    79 		/// Constructor

    80 		CDSASignerImpl();

    81 			

    82 	protected:

    83 		/// second phase of construction

    84 		virtual void ConstructL(const CKey& aKey);

    85 		

    86 	private:

    87 		static const TUint KSha1HashLength = 20;

    88 		};

    89 	}

    90 

    91 #endif // __DSASIGNERIMPL_H__