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 * PBE symmetric factory

    16 *

    17 */

    18 

    19 

    20 /**

    21  @file 

    22  @internalComponent 

    23 */

    24  

    25 #ifndef __PBESYMMETRICFACTORY_H__

    26 #define __PBESYMMETRICFACTORY_H__

    27 

    28 #include <symmetric.h>

    29 #include <pbe.h>

    30 

    31 const TUint KAESBlockBytes = 16;

    32 const TUint KAESKeyBytes128 = 16;

    33 const TUint KAESKeyBytes192 = 24;

    34 const TUint KAESKeyBytes256 = 32;

    35 

    36 const TUint KDESBlockBytes = 8;

    37 const TUint KDESKeyBytes = 8;

    38 const TUint K3DESKeyBytes = 24;

    39 

    40 const TUint K2Key3DESKeyBytes = 16;

    41 const TUint  KRC4KeyBytes128 = 16;

    42 const TUint  KRC4KeyBytes40 = 5;

    43 

    44 const TUint KRC2BlockBytes = 8;

    45 const TUint KRC2KeyBytes40 = 5;

    46 const TUint KRC2KeyBytes128 = 16;

    47 

    48 const TPBECipher KPBEDefaultStrongCipher = ECipherAES_CBC_128;

    49 const TPBECipher KPBEDefaultWeakCipher = ECipherDES_CBC;

    50 const TUint KPBEDefaultSaltBytes = 16; //pkcs5 recommends min 64 bits (8 bytes);

    51 

    52 const TUint KPBEMaxCipherIVBytes = KAESBlockBytes;

    53 const TUint KPBEMaxCipherKeyBytes = KAESKeyBytes256;

    54 const TUint KPBEMaxSaltBytes = 16; //pkcs5 recommends min 64 bits (8 bytes);

    55 

    56 class PBE

    57 	{

    58 public:

    59 	static TUint GetKeyBytes(TPBECipher aCipher);

    60 	static TUint GetBlockBytes(TPBECipher aCipher);

    61 

    62 	static CSymmetricCipher* MakeEncryptorL(TPBECipher aCipher, 

    63 		const TDesC8& aKey, const TDesC8& aIV);

    64 	static CSymmetricCipher* MakeDecryptorL(TPBECipher aCipher, 

    65 		const TDesC8& aKey, const TDesC8& aIV);

    66 private:

    67 	PBE(void);

    68 	PBE(const PBE&);

    69 	PBE& operator=(const PBE&);	

    70 	};

    71 

    72 #endif