1 // Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies).

     2 // All rights reserved.

     3 // This component and the accompanying materials are made available

     4 // under the terms of "Eclipse Public License v1.0"

     5 // which accompanies this distribution, and is available

     6 // at the URL "http://www.eclipse.org/legal/epl-v10.html".

     7 //

     8 // Initial Contributors:

     9 // Nokia Corporation - initial contribution.

    10 //

    11 // Contributors:

    12 //

    13 // Description:

    14 //

    15 

    16 /**

    17  @file

    18  @brief Header file for the implementation of the MD4 Message-Digest Algorithm - RFC 1320.

    19  @internalComponent 

    20 */

    21 

    22 #ifndef __MD4_H__

    23 #define __MD4_H__

    24 

    25 #include <e32base.h>

    26 

    27 // This implementation is fully derived (copied) from the former MD4

    28 // implementation provided by Symbian PPP in the release 7.0s of

    29 // Symbian OS.  This is a provisional solution until the Symbian

    30 // Security subsystem components will provide a MD4 implementation.

    31 

    32 /*final*/ class CMd4 : public CBase

    33 /**

    34    Class that implements the MD4 Message-Digest Algorithm - RFC 1320.

    35    @internalComponent

    36    @note This implementation is fully derived from the former MD4 implementation provided by Symbian PPP in the release 7.0s of Symbian OS.  This is a provisional solution until the Symbian Security components will provide a MD4 implementation.

    37 */

    38 	{

    39 public:

    40 	static CMd4* NewL();

    41 

    42 //functions moved from the former CDigestBase

    43 	TInt Input(const TDesC8& aInput);

    44 	TInt Output(TDes8& aOutput);

    45 	TInt OutputSize() const;

    46 

    47 private:

    48 	CMd4();

    49 	void Transform(const TUint8*);

    50 	void Update(const TUint8*, TInt);

    51 	void Final(TUint8*);

    52 	void Encode(TUint8*, const TUint32*, TInt);

    53 	void Decode(TUint32*, const TUint8*, TInt);

    54 

    55 private:

    56 	TUint32 iState[4];

    57 	TUint iCount[2];

    58 	TUint8 iBuffer[64];

    59 	};

    60 

    61 #endif