--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vpnengine/ikev2lib/inc/ikecrypto.h	Thu Dec 17 09:14:51 2009 +0200
@@ -0,0 +1,58 @@
+/*
+* 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 "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:   Cryptographic Intermediate Layer to use and change any crypto library easily.
+*
+*/
+
+#ifndef __IKECRYPTO_H_
+#define __IKECRYPTO_H__
+
+
+#include <e32base.h>
+#include "utlcrypto.h"
+
+NONSHARABLE_CLASS(CDHKeys) : public CBase
+{
+public:
+    static CDHKeys* NewL(const TDesC8& aN,const TDesC8& aG);
+	static CDHKeys* CreateDHKeyL(TUint aGroupDesc);
+	HBufC8* ComputeAgreedKeyL(const TDesC8 &aPeerPublicKey);
+    HBufC8* GetPubKey();
+    void XValueL(); 
+    inline const HBufC8* KValueL(const TDesC8& aY) const {return iDHKey->CompleteKL(aY);}
+	inline TInt ModulusLength() {return iModuluslength;}
+    ~CDHKeys();
+private:
+    CUtlDiffieHellman* iDHKey;
+    const HBufC8*      iPubKey;
+	TInt               iModuluslength;
+};
+
+
+class IkeCrypto
+{
+public:
+	static void DecryptL(const TUint8* aInputPayload, TUint8* aOutputPayload, TInt aLength, TUint8* aIV, 
+                         const TDesC8& aKey, TUint16 aEncrAlg);
+	static void EncryptL(const TDesC8& aInput, TPtr8& aOutput, const TDesC8& aIv, const TDesC8& aKey, TUint16 aEncrAlg);
+	static TInt IntegHMACL(const TDesC8& aInput, TDes8& aChecksum, const TDesC8& aKeyData, TUint16 aIntegAlg);	
+	static HBufC8* PrfhmacL(const TDesC8& aInput, const TDesC8& aKeyData, TUint16 aPrfAlg);
+	static HBufC8* PrfL(const TDesC8& aInput, TUint16 aPrfAlg);	
+	static TInt AlgorithmInfo(TUint16 aTransform, TUint16 aAlgCode, TInt* aBlockLth=NULL,
+							  TUtlCrypto::TUtlSymmetricCipherId* aCipherId=NULL,
+							  TUtlCrypto::TUtlMessageDigestId*   aDigestId=NULL);
+	static HBufC8* GenerateKeyingMaterialL(const TDesC8& aK, const TDesC8& aS, TInt aKeyMatLth, TUint16 aPRFAlg);			
+};
+	
+#endif