1 /*

     2 * Copyright (c) 2004 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 "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:    Provides class for NULL authentication.

    15 *

    16 */

    17 

    18 

    19 

    20 

    21 #ifndef __SRTP_AUTHENTICATION_NULL_H__

    22 #define __SRTP_AUTHENTICATION_NULL_H__

    23 

    24 #include "msrtpauthentication.h"

    25 

    26 class CSRTPAuthentication_NULL : public CBase, public MSRTPAuthentication

    27     {

    28     public:

    29         /**

    30         * Constructor.

    31         * @leave KErrNone if success, system-wide error code otherwise

    32         */

    33 	    static CSRTPAuthentication_NULL* NewL();

    34     

    35         /**

    36         * Destructor.

    37         */

    38 	    ~CSRTPAuthentication_NULL();

    39 

    40         /**

    41         * This function is called by SRTP for NULL authentication/integrity protection

    42         * Returns empty tag

    43         * @param aBitLength  authentication tag length

    44         * @param aKey  authentication key (n_a)

    45         * @param aAuthPortion data to be integrity protected 

    46 	    * Returns HBufC8* authentication tag (empty) 

    47         */

    48         HBufC8* AuthenticateL(TUint aBitLength,

    49                             const TDesC8& aKey, 

    50                             const TDesC8& aAuthPortion,

    51                             const TDesC8& aRoc);

    52                                 

    53                  

    54     private:         // methods

    55         /**

    56         * Default constructor.

    57         */

    58         CSRTPAuthentication_NULL();                  

    59     };

    60 

    61 #endif // __SRTP_AUTHENTICATION_NULL_H__

    62