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 "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:   Cryptographic Intermediate Layer to use and change any crypto library easily.

    15 *

    16 */

    17 

    18 #ifndef __IKECRYPTO_H_

    19 #define __IKECRYPTO_H__

    20 

    21 

    22 #include <e32base.h>

    23 #include "utlcrypto.h"

    24 

    25 NONSHARABLE_CLASS(CDHKeys) : public CBase

    26 {

    27 public:

    28     static CDHKeys* NewL(const TDesC8& aN,const TDesC8& aG);

    29 	static CDHKeys* CreateDHKeyL(TUint aGroupDesc);

    30 	HBufC8* ComputeAgreedKeyL(const TDesC8 &aPeerPublicKey);

    31     HBufC8* GetPubKey();

    32     void XValueL(); 

    33     inline const HBufC8* KValueL(const TDesC8& aY) const {return iDHKey->CompleteKL(aY);}

    34 	inline TInt ModulusLength() {return iModuluslength;}

    35     ~CDHKeys();

    36 private:

    37     CUtlDiffieHellman* iDHKey;

    38     const HBufC8*      iPubKey;

    39 	TInt               iModuluslength;

    40 };

    41 

    42 

    43 class IkeCrypto

    44 {

    45 public:

    46 	static void DecryptL(const TUint8* aInputPayload, TUint8* aOutputPayload, TInt aLength, TUint8* aIV, 

    47                          const TDesC8& aKey, TUint16 aEncrAlg);

    48 	static void EncryptL(const TDesC8& aInput, TPtr8& aOutput, const TDesC8& aIv, const TDesC8& aKey, TUint16 aEncrAlg);

    49 	static TInt IntegHMACL(const TDesC8& aInput, TDes8& aChecksum, const TDesC8& aKeyData, TUint16 aIntegAlg);	

    50 	static HBufC8* PrfhmacL(const TDesC8& aInput, const TDesC8& aKeyData, TUint16 aPrfAlg);

    51 	static HBufC8* PrfL(const TDesC8& aInput, TUint16 aPrfAlg);	

    52 	static TInt AlgorithmInfo(TUint16 aTransform, TUint16 aAlgCode, TInt* aBlockLth=NULL,

    53 							  TUtlCrypto::TUtlSymmetricCipherId* aCipherId=NULL,

    54 							  TUtlCrypto::TUtlMessageDigestId*   aDigestId=NULL);

    55 	static HBufC8* GenerateKeyingMaterialL(const TDesC8& aK, const TDesC8& aS, TInt aKeyMatLth, TUint16 aPRFAlg);			

    56 };

    57 	

    58 #endif