--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/crypto/weakcryptospi/inc/keyidentifierutil.h	Thu Sep 10 14:01:51 2009 +0300
@@ -0,0 +1,89 @@
+/*
+* 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: 
+* This utility class provides functions to generate key identifer data from
+* supplied key data
+*
+*/
+
+
+/**
+ @file
+ @publishedPartner
+ @released
+*/
+
+#ifndef _KEYIDENTIFIERUTIL_H_
+#define _KEYIDENTIFIERUTIL_H_
+
+#include <e32base.h>
+
+class CRSAPublicKey;
+class CDSAPublicKey;
+class RInteger;
+
+/** The length of a SHA-1 hash 
+  * @publishedPartner
+  * @released
+  */
+ const TInt KSHA1HashLengthInBytes = 20;
+
+/**
+  * A SHA-1 hash.
+  * @publishedPartner
+  * @released
+  */
+ typedef  TBuf8<KSHA1HashLengthInBytes> TSHA1Hash;
+ 
+  
+ /**
+  * A SHA-1 hash is also used as a key identifier.
+  * @publishedPartner
+  * @released
+  */
+ typedef TSHA1Hash TKeyIdentifier;
+
+
+/**
+ * Utilities for generation of the key identifier
+ * @publishedPartner
+ * @released
+ */
+class KeyIdentifierUtil
+	{
+public:
+	/**
+	 * Creates a RSA key identifier using the RSAPublicKey.
+	 *
+	 * @param aKey	The RSA encryption key
+	 * @param aIdentifier	key identifier
+	  */
+	IMPORT_C static void RSAKeyIdentifierL(const CRSAPublicKey& aKey, TKeyIdentifier& aIdentifier);
+	/**
+	 * Creates a DSA key identifier using the DSAPublicKey.
+	 *
+	 * @param aKey	The DSA encryption key
+	 * @param aIdentifier	key identifier
+	  */
+	IMPORT_C static void DSAKeyIdentifierL(const CDSAPublicKey& aKey, TKeyIdentifier& aIdentifier);
+	/**
+	 * Creates a DHKeyIdentifier using the RInteger.
+	 *
+	 * @param aKey			The DH parameter 
+	 * @param aIdentifier	key identifier
+	  */
+	IMPORT_C static void DHKeyIdentifierL(const RInteger& aKey, TKeyIdentifier& aIdentifier);
+	};
+
+#endif