/*

* Copyright (c) 2006 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:    Class is used for configuring MCC SRTP master key

*

*/

#ifndef MCCSRTPMASTERKEY_H

#define MCCSRTPMASTERKEY_H

// INCLUDES

#include <e32base.h>

// SRTP Master key length

// 16 octets (128 bits) 

const TUint KMasterKeyMaxLength = 16;

// default SRTP SESSION key lengths:

// default bit length (n_e) for session encryption key (k_e):

// 128 bits (16 octets)

const TUint KMccSRTPDefSessionEncryptionKeyLength = 0x80;

// default bit length (n_a) for session authentication key (k_a):

// 160 bits (20 octets)

const TUint KMccSRTPDefSessionAuthenticationKeyLength = 0xa0;

// default SRTP MASTER key lengths:

// default bit length for SRTP master key (128-bit AES):

// 128 bits (16 octets)

const TUint16 KMccSRTPDefaultMasterKeyLength = 0x80;

// Master key identifier length

// 128 octets 

const TUint KMKIMaxLength = 128;

/**

 * The TMccSrtpMasterKey captures the MCC SRTP master key params

 * into one class

 *

 * @lib N/A

 * @since Series 60 3.2

 */    

class TMccSrtpMasterKey

	{

public: 

    inline TMccSrtpMasterKey( const TDesC8& aMasterKey,

                              const TDesC8& aMKI,

                              TUint aEncKeyBitLength =

                                  KMccSRTPDefSessionEncryptionKeyLength,

                              TUint aAuthKeyBitLength =

                                  KMccSRTPDefSessionAuthenticationKeyLength ) :

        iMasterKey( aMasterKey ),

        iMKI( aMKI ),

        iEncKeyBitLength( aEncKeyBitLength ),

        iAuthKeyBitLength( aAuthKeyBitLength )                    

    	{

    	};

private:

    TMccSrtpMasterKey() :

        iMasterKey( KNullDesC8 ),

        iMKI( KNullDesC8 ), 

        iEncKeyBitLength( KMccSRTPDefSessionEncryptionKeyLength ),

        iAuthKeyBitLength( KMccSRTPDefSessionAuthenticationKeyLength )                 

    	{

    	};

public:

    /**

     * The master key value.

     */

    TBuf8< KMasterKeyMaxLength > iMasterKey; 

    /**

     * The master key identifier value

     */

    TBuf8< KMKIMaxLength > iMKI;

    /**

     * The bit length of the encryption key

     */

    TUint iEncKeyBitLength;

    /**

     * The bit length of the authentication key

     */

    TUint iAuthKeyBitLength;

	};

typedef TPckgBuf<TMccSrtpMasterKey> TMccSrtpMasterKeyPckg;

#endif /* MCCSRTPMASTERKEY_H */

// End of File