diff -r 445614b8b140 -r 1afc808f187d crypto/weakcryptospi/source/common/keyidentifierutil.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crypto/weakcryptospi/source/common/keyidentifierutil.cpp	Fri Nov 13 10:07:38 2009 +0530
@@ -0,0 +1,68 @@
+/*
+* 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 the License "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: 
+*
+*/
+
+
+#include "keyidentifierutil.h"
+#include "hash.h"
+#include "asymmetrickeys.h"
+
+EXPORT_C void KeyIdentifierUtil::RSAKeyIdentifierL(
+		const CRSAPublicKey& aKey, TKeyIdentifier& aIdentifier)
+	{
+	aIdentifier.FillZ();
+
+	// Generate a hash of the appropriate data (for TKeyIdentifier)	
+	const TInteger& keyModulus = aKey.N();
+	HBufC8* modulusData = keyModulus.BufferLC();
+	CSHA1* sha1 = CSHA1::NewL();
+	CleanupStack::PushL(sha1);
+	TPtrC8 hash = sha1->Final(*modulusData);
+	aIdentifier.Copy(hash);
+	CleanupStack::PopAndDestroy(2);	//	sha1, modulusData
+	}
+
+EXPORT_C void KeyIdentifierUtil::DSAKeyIdentifierL(
+		const CDSAPublicKey& aKey, TKeyIdentifier& aIdentifier)
+	{
+	aIdentifier.FillZ();
+
+	// Generate a hash of the appropriate data (for TKeyIdentifier)	
+	const TInteger& Y = aKey.Y();
+	HBufC8* YData = Y.BufferLC();					
+	CSHA1* sha1 = CSHA1::NewL();
+	CleanupStack::PushL(sha1);
+	TPtrC8 hash = sha1->Final(*YData);
+	aIdentifier.Copy(hash);
+	CleanupStack::PopAndDestroy(2);	//	sha1, YData				
+	}
+
+EXPORT_C void KeyIdentifierUtil::DHKeyIdentifierL(
+		const RInteger& aKey, TKeyIdentifier& aIdentifier)
+	{
+	if (aKey.IsZero())
+		User::Leave(KErrArgument);
+
+	aIdentifier.FillZ();
+
+	// Generate a hash of the appropriate data (for TKeyIdentifier)	
+	HBufC8* XData = aKey.BufferLC();								
+	CSHA1* sha1 = CSHA1::NewL();
+	CleanupStack::PushL(sha1);
+	TPtrC8 hash = sha1->Final(*XData);
+	aIdentifier.Copy(hash);
+	CleanupStack::PopAndDestroy(2);	//	sha1, XData
+	}