/*

 * Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies).

 * All rights reserved.

 * This component and the accompanying materials are made available

 * under the terms of the License "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: 

 * PBE symmetric factory

 *

 */

 /**

  @file 

  @internalComponent 

 */

 #ifndef __PBESYMMETRICFACTORY_H__

 #define __PBESYMMETRICFACTORY_H__

 #include <symmetric.h>

 #include <pbe.h>

 const TUint KAESBlockBytes = 16;

 const TUint KAESKeyBytes128 = 16;

 const TUint KAESKeyBytes192 = 24;

 const TUint KAESKeyBytes256 = 32;

 const TUint KDESBlockBytes = 8;

 const TUint KDESKeyBytes = 8;

 const TUint K3DESKeyBytes = 24;

 const TUint K2Key3DESKeyBytes = 16;

 const TUint  KRC4KeyBytes128 = 16;

 const TUint  KRC4KeyBytes40 = 5;

 const TUint KRC2BlockBytes = 8;

 const TUint KRC2KeyBytes40 = 5;

 const TUint KRC2KeyBytes128 = 16;

 const TPBECipher KPBEDefaultStrongCipher = ECipherAES_CBC_128;

 const TPBECipher KPBEDefaultWeakCipher = ECipherDES_CBC;

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

 const TUint KPBEMaxCipherIVBytes = KAESBlockBytes;

 const TUint KPBEMaxCipherKeyBytes = KAESKeyBytes256;

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

 class PBE

 	{

 public:

 	static TUint GetKeyBytes(TPBECipher aCipher);

 	static TUint GetBlockBytes(TPBECipher aCipher);

 	static CSymmetricCipher* MakeEncryptorL(TPBECipher aCipher, 

 		const TDesC8& aKey, const TDesC8& aIV);

 	static CSymmetricCipher* MakeDecryptorL(TPBECipher aCipher, 

 		const TDesC8& aKey, const TDesC8& aIV);

 private:

 	PBE(void);

 	PBE(const PBE&);

 	PBE& operator=(const PBE&);	

 	};

 #endif