/*

* 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