--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/contentmgmt/cafstreamingsupport/inc/keyassociation.h	Mon Mar 15 12:46:43 2010 +0200
@@ -0,0 +1,75 @@
+// Copyright (c) 2007-2009 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:
+//
+
+/**
+ @file
+ @publishedPartner
+ @released
+*/
+
+#include <e32base.h>
+
+#ifndef KEYASSOCIATION_H
+#define KEYASSOCIATION_H
+
+namespace StreamAccess
+	{
+	/**
+ 	Defines the key association abstraction. In streaming protection, keys can be used slightly differently
+	for different protection layers. In IPSec they are used as a part of SA (Security Associations), while in SRTP they
+	are used as the Master Key - used for deriving the decryption and the authentication keys.
+ 	*/
+	class CKeyAssociation : public CBase
+		{
+	public:	 
+		IMPORT_C virtual ~CKeyAssociation();
+		};
+
+
+	/**
+ 	Defines a key association for the IPSec protocol.
+ 	*/
+	class CIpSecKeyAssociation : public CKeyAssociation
+		{
+	friend class CIpSecKeyStreamSink;
+	public:
+		 /** Constructs a new key association for IPSec.
+		 @param aSpi The SPI (security parameter index) to be used.
+		 @param aEncryptionKey The encryption key to be used in this association. Please note that the ownership on aEncryptionKey is passed to the newly created object.
+		 @param aAuthenticationKey The authentication key to be used in this association. Please note that the ownership on aAuthenticationKey is passed to the newly created object.		 
+		 @leave One of the system-wide error codes.
+		 */
+		 IMPORT_C static CIpSecKeyAssociation* NewL(TInt32 aSpi, HBufC8* aEncryptionKey, HBufC8* aAuthenticationKey);
+
+		 /**
+		 @see CIpSecKeyAssociation::NewL
+		 */
+		 IMPORT_C static CIpSecKeyAssociation* NewLC(TInt32 aSpi, HBufC8* aEncryptionKey, HBufC8* aAuthenticationKey);
+
+	private:
+		 TInt32 GetSpiL() const;
+		 const HBufC8* GetEncryptionKeyL() const;
+		 const HBufC8* GetAuthenticationKeyL() const;
+	private:
+		 CIpSecKeyAssociation(TInt32 aSpi, HBufC8* aEncryptionKey, HBufC8* aAuthenticationKey);
+	private:
+		 TInt32 iSpi;
+		 HBufC8 *iEncryptionKey;
+		 HBufC8 *iAuthenticationKey;
+		};
+
+	} // namespace StreamAccess
+#endif // KEYASSOCIATION_H
+