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 an abstract class for ecryption operations

    15 *

    16 */

    17 

    18 

    19 

    20 

    21 #ifndef __MSRTP_ENCRYPTION_H__

    22 #define __MSRTP_ENCRYPTION_H__

    23 

    24 #include <e32base.h>

    25 

    26 class MSRTPEncryption

    27     {

    28     public:

    29         /**

    30         * This function is called by SRTP for cipher operation 

    31         * regardless of the algorithm, the default is AESCM-128

    32         * Produces key stream and performs an XOR operation for the plain text

    33         * @param aKey  Input key.

    34         * @param aIV  Integer Value (IV).

    35 	    * Returns HBufC8* decrypted/encrypted source        

    36         */

    37         virtual HBufC8* EncryptL(const TDesC8& aKey, 

    38                                 const TDesC8& aIV, 

    39                                 const TDesC8& aSrc ) = 0;

    40         virtual ~MSRTPEncryption() { };

    41     };

    42 

    43 #endif // __MSRTP_ENCRYPTION_H__