Symaptic: os/security/crypto/weakcryptospi/source/asymmetric/dsashim.h@bde4ae8d615e

     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 * DSA shim classes definition

    16 *

    17 */

    20 /**

    21  @file

    22  @internalComponent

    23  @released

    24 */

    26 #ifndef __DSASHIM_H__

    27 #define __DSASHIM_H__

    29 #include <asymmetric.h>

    31 namespace CryptoSpi

    32 	{

    33 	class CSigner;

    34 	class CVerifier;

    35 	class CKey;

    36 	}

    38 NONSHARABLE_CLASS(CDsaSignerShim) : public CDSASigner

    39 {

    40 public:

    41 	/**

    42 	Creates an CDsaSignerShim object which has the same interface

    43 	as CDSASigner but delegates all work to a Crypto SPI plug-in.

    45 	@param aKey The signing key

    46 	@return A pointer to a CDsaSignerShim instance

    47 	*/

    48 	static CDsaSignerShim* NewL(const CDSAPrivateKey& aKey);

    50 	/**

    51 	Creates an CDsaSignerShim object which has the same interface

    52 	as CDSASigner but delegates all work to a Crypto SPI plug-in.

    54 	A pointer to the new object is placed on the cleanup stack

    56 	@param aKey The signing key

    57 	@return A pointer to a CDsaSignerShim instance

    58 	*/

    59 	static CDsaSignerShim* NewLC(const CDSAPrivateKey& aKey);

    61 	/**

    62 	Digitally signs the specified input message

    63 	Note that in order to be interoperable and compliant with the DSS, aInput

    64 	must be the result of a SHA-1 hash.

    66 	@param aInput	A SHA-1 hash of the message to sign

    67 	@return			A pointer to a new CSignature object

    68 	@panic ECryptoPanicInputTooLarge	If aInput is larger than MaxInputLength(),

    69 										which is likely to happen if the caller

    70 										has passed in something that has not been hashed.

    71 	*/

    72 	virtual CDSASignature* SignL(const TDesC8& aInput) const;

    74 	//From MSignatureSystem

    75 	virtual TInt MaxInputLength() const;

    77 	/// Destructor

    78 	~CDsaSignerShim();

    80 private:

    81 	/// Constructor

    82 	CDsaSignerShim(const CDSAPrivateKey& aKey);

    83 	void ConstructL(const CDSAPrivateKey& aKey);

    85 private:

    86 	/// SPI delegate

    87 	CryptoSpi::CSigner* iSignerImpl;

    89 	/// SPI requires all key to passed as key-objects

    90 	CryptoSpi::CKey* iKey;

    91 };

    93 NONSHARABLE_CLASS(CDsaVerifierShim) : public CDSAVerifier

    94 {

    95 public:

    96 	/**

    97 	Creates an CDsaVerifierShim object which has the same interface

    98 	as CDSAVerifier but delegates all work to a Crypto SPI plug-in.

   100 	@param aKey The verification key

   101 	@return A pointer to a CDsaVerifierShim instance

   102 	*/

   103 	static CDsaVerifierShim* NewL(const CDSAPublicKey& aKey);

   105 	/**

   106 	Creates an CDsaVerifierShim object which has the same interface

   107 	as CDSAVerifier but delegates all work to a Crypto SPI plug-in.

   109 	A pointer to the new object is placed on the cleanup stack

   111 	@param aKey The verification key

   112 	@return A pointer to a CDsaVerifierShim instance

   113 	*/

   114 	static CDsaVerifierShim* NewLC(const CDSAPublicKey& aKey);

   116 	//From CVerifier

   117 	virtual TBool VerifyL(const TDesC8& aInput, const CDSASignature& aSignature) const;

   119 	//From MSignatureSystem

   120 	virtual TInt MaxInputLength() const;

   122 	// Destructor

   123 	~CDsaVerifierShim();

   125 private:

   126 	// Constructor

   127 	CDsaVerifierShim(const CDSAPublicKey& aKey);

   128 	void ConstructL(const CDSAPublicKey& aKey);

   130 private:

   131 	/// SPI delegate

   132 	CryptoSpi::CVerifier* iVerifierImpl;

   134 	/// SPI requires all key to passed as key-objects

   135 	CryptoSpi::CKey* iKey;

   136 };

   138 #endif // __DSASHIM_H__

author	sl@SLION-WIN7.fritz.box
	Fri, 15 Jun 2012 03:10:57 +0200
changeset 0	bde4ae8d615e
permissions	-rw-r--r--