sl@0: /*
sl@0: * Copyright (c) 2002-2009 Nokia Corporation and/or its subsidiary(-ies).
sl@0: * All rights reserved.
sl@0: * This component and the accompanying materials are made available
sl@0: * under the terms of the License "Eclipse Public License v1.0"
sl@0: * which accompanies this distribution, and is available
sl@0: * at the URL "http://www.eclipse.org/legal/epl-v10.html".
sl@0: *
sl@0: * Initial Contributors:
sl@0: * Nokia Corporation - initial contribution.
sl@0: *
sl@0: * Contributors:
sl@0: *
sl@0: * Description: 
sl@0: *
sl@0: */
sl@0: 
sl@0: 
sl@0: /**
sl@0:  @file
sl@0:  @publishedPartner
sl@0:  @released
sl@0: */
sl@0: 
sl@0: 
sl@0: #ifndef __PKCS12KDF_H__
sl@0: #define __PKCS12KDF_H__
sl@0: 
sl@0: #include <e32std.h>
sl@0: 
sl@0: class PKCS12KDF
sl@0: /**
sl@0: 	Namespace class contains static functions which
sl@0: 	are used to generate a key for PKCS#12 operations.
sl@0: 	
sl@0: 	See Section B from PKCS 12 v1.0.
sl@0:  */
sl@0: 	{
sl@0: public:
sl@0: 	enum TIDByteType
sl@0: 	/**
sl@0: 		ID byte value used to generate (en|de)cryption key,
sl@0: 		IV, or MAC key.  See SB.3 of spec.
sl@0: 	 */
sl@0: 		{
sl@0: 		/** Generates a key for (en|de)cryption. */
sl@0: 		EIDByteEncryptKey = 1,
sl@0: 		/** Generates an initialization vector. */
sl@0: 		EIDByteIV = 2,
sl@0: 		/** Generates a key for MAC-ing. */
sl@0: 		EIDByteMACKey = 3
sl@0: 		};
sl@0: public:
sl@0: 	IMPORT_C static void DeriveKeyL(
sl@0: 		TDes8& aKey, TIDByteType aIDType,
sl@0: 		const TDesC8& aPasswd, const TDesC8& aSalt, const TUint aIterations);
sl@0: 	IMPORT_C static HBufC8* GeneratePasswordLC(const TDesC& aDes);
sl@0: 
sl@0: private:
sl@0: 	static void Process6cL(TDes8& Ij, const TDesC8& B, TInt v);
sl@0: 
sl@0: #ifdef _DEBUG
sl@0: 	enum TPanic
sl@0: 		{
sl@0: 		EDKEmptyPswd = 0x10, EDKOddPswdByteCount, EDKBadNullTerminator
sl@0: 		};
sl@0: 	static void Panic(TPanic aPanic);
sl@0: #endif
sl@0: 
sl@0: 	// not implemented - prevents instantiation
sl@0: 	PKCS12KDF();
sl@0: 	};
sl@0: 
sl@0: #endif	// #ifndef __PKCS12KDF_H__
sl@0: