sl@0: /*
sl@0: * Copyright (c) 2003-2009 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: #include "keyidentifierutil.h"
sl@0: #include "hash.h"
sl@0: #include "asymmetrickeys.h"
sl@0: 
sl@0: EXPORT_C void KeyIdentifierUtil::RSAKeyIdentifierL(
sl@0: 		const CRSAPublicKey& aKey, TKeyIdentifier& aIdentifier)
sl@0: 	{
sl@0: 	aIdentifier.FillZ();
sl@0: 
sl@0: 	// Generate a hash of the appropriate data (for TKeyIdentifier)	
sl@0: 	const TInteger& keyModulus = aKey.N();
sl@0: 	HBufC8* modulusData = keyModulus.BufferLC();
sl@0: 	CSHA1* sha1 = CSHA1::NewL();
sl@0: 	CleanupStack::PushL(sha1);
sl@0: 	TPtrC8 hash = sha1->Final(*modulusData);
sl@0: 	aIdentifier.Copy(hash);
sl@0: 	CleanupStack::PopAndDestroy(2);	//	sha1, modulusData
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void KeyIdentifierUtil::DSAKeyIdentifierL(
sl@0: 		const CDSAPublicKey& aKey, TKeyIdentifier& aIdentifier)
sl@0: 	{
sl@0: 	aIdentifier.FillZ();
sl@0: 
sl@0: 	// Generate a hash of the appropriate data (for TKeyIdentifier)	
sl@0: 	const TInteger& Y = aKey.Y();
sl@0: 	HBufC8* YData = Y.BufferLC();					
sl@0: 	CSHA1* sha1 = CSHA1::NewL();
sl@0: 	CleanupStack::PushL(sha1);
sl@0: 	TPtrC8 hash = sha1->Final(*YData);
sl@0: 	aIdentifier.Copy(hash);
sl@0: 	CleanupStack::PopAndDestroy(2);	//	sha1, YData				
sl@0: 	}
sl@0: 
sl@0: EXPORT_C void KeyIdentifierUtil::DHKeyIdentifierL(
sl@0: 		const RInteger& aKey, TKeyIdentifier& aIdentifier)
sl@0: 	{
sl@0: 	if (aKey.IsZero())
sl@0: 		User::Leave(KErrArgument);
sl@0: 
sl@0: 	aIdentifier.FillZ();
sl@0: 
sl@0: 	// Generate a hash of the appropriate data (for TKeyIdentifier)	
sl@0: 	HBufC8* XData = aKey.BufferLC();								
sl@0: 	CSHA1* sha1 = CSHA1::NewL();
sl@0: 	CleanupStack::PushL(sha1);
sl@0: 	TPtrC8 hash = sha1->Final(*XData);
sl@0: 	aIdentifier.Copy(hash);
sl@0: 	CleanupStack::PopAndDestroy(2);	//	sha1, XData
sl@0: 	}