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 AES CM 128 bit encryption/decryption.

    15 *

    16 */

    17 

    18 

    19 

    20 

    21 #include "srtpcipher_aescm128.h"

    22 #include "srtpaesctrcrypto.h"

    23 

    24 // ---------------------------------------------------------------------------

    25 // CSRTPCipherAESCM128::NewL

    26 // ---------------------------------------------------------------------------

    27 //

    28 CSRTPCipherAESCM128* CSRTPCipherAESCM128::NewL()

    29     {

    30     CSRTPCipherAESCM128* self = CSRTPCipherAESCM128::NewLC();

    31     CleanupStack::Pop(self);

    32     return self;    

    33     }

    34 

    35 // ---------------------------------------------------------------------------

    36 // CSRTPCipherAESCM128::NewLC

    37 // ---------------------------------------------------------------------------

    38 //

    39 CSRTPCipherAESCM128* CSRTPCipherAESCM128::NewLC()

    40     {

    41     CSRTPCipherAESCM128* self = new( ELeave ) CSRTPCipherAESCM128();

    42     CleanupStack::PushL( self );

    43     self->ConstructL();

    44     return self;

    45     }

    46 

    47 // ---------------------------------------------------------------------------

    48 // CSRTPCipherAESCM128::TransformL

    49 // ---------------------------------------------------------------------------

    50 //

    51 HBufC8* CSRTPCipherAESCM128::TransformL(const TDesC8& aKey, 

    52                                 const TDesC8& aIV, 

    53                                 const TDesC8& aSrc )

    54     {    

    55     // encrypt/decrypt using CSrtpAESCTRCrypto

    56     return iCipher->EncryptL(aKey, aIV, aSrc);

    57     }

    58 

    59 // ---------------------------------------------------------------------------

    60 // CSRTPCipherAESCM128::ConstructL

    61 // ---------------------------------------------------------------------------

    62 //

    63 void CSRTPCipherAESCM128::ConstructL()

    64     {    

    65     // Create AES-CTR Wrapper

    66     iCipher = CSrtpAESCTRCrypto::NewL();        

    67         

    68     }

    69 

    70 // ---------------------------------------------------------------------------

    71 // CSRTPCipherAESCM128::~CSRTPCipherAESCM128

    72 // ---------------------------------------------------------------------------

    73 //

    74 CSRTPCipherAESCM128::~CSRTPCipherAESCM128()

    75     {    

    76     // delete AES-CTR Wrapper

    77     delete iCipher;

    78     }

    79 

    80 // ---------------------------------------------------------------------------

    81 // CSRTPCipherAESCM128::CSRTPCipherAESCM128

    82 // ---------------------------------------------------------------------------

    83 //

    84 CSRTPCipherAESCM128::CSRTPCipherAESCM128()

    85     {    

    86         

    87     }