os/security/cryptoplugins/cryptospiplugins/source/softwarecrypto/signerimpl.h
author sl@SLION-WIN7.fritz.box
Fri, 15 Jun 2012 03:10:57 +0200
changeset 0 bde4ae8d615e
permissions -rw-r--r--
First public contribution.
     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 __SIGNERIMPL_H__
    20 #define __SIGNERIMPL_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 #include "signerplugin.h"
    32 #include <padding.h>
    33 
    34 #include "common/inlines.h"
    35 
    36 /**
    37  * Abstract base class for signer plug-ins.
    38  */
    39 namespace SoftwareCrypto
    40 	{
    41 	using namespace CryptoSpi;
    42 	
    43 	NONSHARABLE_CLASS(CSignerImpl) : public CBase, public MSigner
    44 		{
    45 	public:
    46 		// Override MPlugin virtual functions
    47 		void Close();
    48 		void Reset(); // Always call reset in super-class if you override this
    49 		TAny* GetExtension(TUid aExtensionId);
    50 		void GetCharacteristicsL(const TCharacteristics*& aPluginCharacteristics);
    51 		// End of MPlugin
    52 
    53 		// Override MSignatureBase virtual functions
    54 		virtual void SetPaddingModeL(TUid aPaddingMode);
    55 		virtual void SetKeyL(const CKey& aPrivateKey);
    56 		virtual TInt GetMaximumInputLengthL() const;
    57 		virtual TInt GetMaximumOutputLengthL() const;
    58 		// End of MSignatureBase
    59 
    60 		/// Destructor
    61 		~CSignerImpl();
    62 		
    63 	protected:
    64 		/// Constructor
    65 		CSignerImpl();
    66 
    67 		/**
    68 		Second phase of construction
    69 		@param aKey The signing key
    70 		*/
    71 		virtual void ConstructL(const CKey& aKey);
    72 		
    73 		/**
    74 		Helper function implemented by concrete cipher sub-class that allows
    75 		GetCharacteristicsL to return the correct characteristics object.
    76 		@return The implemention uid
    77 		*/
    78 		virtual TUid ImplementationUid() const = 0;
    79 		
    80 		/**
    81 		Store the signing key. The key length is also checked to meet export restrictions and
    82 		to ensure that it is appropriate for the cipher.
    83 		@param aKey The key
    84 		*/
    85 		virtual void DoSetKeyL(const CKey& aKey);
    86 
    87 	protected:
    88 		/// the key, extracted from a CKey object
    89 		CKey* iKey;
    90 
    91 	private:
    92 		};
    93 	}
    94 
    95 #endif // __SIGNERIMPL_H__