1 /*

     2 * Copyright (c) 2003-2009 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 * This utility class provides functions to generate key identifer data from

    16 * supplied key data

    17 *

    18 */

    19 

    20 

    21 /**

    22  @file

    23  @publishedPartner

    24  @released

    25 */

    26 

    27 #ifndef _KEYIDENTIFIERUTIL_H_

    28 #define _KEYIDENTIFIERUTIL_H_

    29 

    30 #include <e32base.h>

    31 

    32 class CRSAPublicKey;

    33 class CDSAPublicKey;

    34 class RInteger;

    35 

    36 /** The length of a SHA-1 hash 

    37   * @publishedPartner

    38   * @released

    39   */

    40  const TInt KSHA1HashLengthInBytes = 20;

    41 

    42 /**

    43   * A SHA-1 hash.

    44   * @publishedPartner

    45   * @released

    46   */

    47  typedef  TBuf8<KSHA1HashLengthInBytes> TSHA1Hash;

    48  

    49   

    50  /**

    51   * A SHA-1 hash is also used as a key identifier.

    52   * @publishedPartner

    53   * @released

    54   */

    55  typedef TSHA1Hash TKeyIdentifier;

    56 

    57 

    58 /**

    59  * Utilities for generation of the key identifier

    60  * @publishedPartner

    61  * @released

    62  */

    63 class KeyIdentifierUtil

    64 	{

    65 public:

    66 	/**

    67 	 * Creates a RSA key identifier using the RSAPublicKey.

    68 	 *

    69 	 * @param aKey	The RSA encryption key

    70 	 * @param aIdentifier	key identifier

    71 	  */

    72 	IMPORT_C static void RSAKeyIdentifierL(const CRSAPublicKey& aKey, TKeyIdentifier& aIdentifier);

    73 	/**

    74 	 * Creates a DSA key identifier using the DSAPublicKey.

    75 	 *

    76 	 * @param aKey	The DSA encryption key

    77 	 * @param aIdentifier	key identifier

    78 	  */

    79 	IMPORT_C static void DSAKeyIdentifierL(const CDSAPublicKey& aKey, TKeyIdentifier& aIdentifier);

    80 	/**

    81 	 * Creates a DHKeyIdentifier using the RInteger.

    82 	 *

    83 	 * @param aKey			The DH parameter 

    84 	 * @param aIdentifier	key identifier

    85 	  */

    86 	IMPORT_C static void DHKeyIdentifierL(const RInteger& aKey, TKeyIdentifier& aIdentifier);

    87 	};

    88 

    89 #endif