--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ipappprotocols_plat/srtp_api/inc/srtpmasterkey.h	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,147 @@
+/*
+* Copyright (c) 2004 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:    SRTP Master key class.
+*
+*/
+
+
+
+
+#ifndef __SRTP_MASTER_KEY_H__
+#define __SRTP_MASTER_KEY_H__
+
+// INCLUDES
+#include <e32def.h>
+#include <e32des8.h>
+#include <e32base.h>
+#include "srtpdef.h"
+
+
+// STRUCT CLASSES
+
+/**
+* Contains an SRTP master key.
+*/
+class CSRTPMasterKey : public CBase
+    {
+    public: // constructor
+    
+        /**
+        * Two-phased constructor.
+        * CSRTPCryptoContext takes the ownership of MasterKey and MasterSalt 
+        * @param aKey  The master key value. Local copy is made.
+        * @param aMKI  The master key identifier value. Local copy is made.
+        *   			MKI key is optional so if there is no MKI key then 
+        *				gives empty string "".
+        * @param aN_E  The bit length of the encryption key
+        * @param aN_A  The bit length of the authentication key
+        * @leave KErrNone if success, system-wide error code otherwise
+        */
+        IMPORT_C static CSRTPMasterKey* NewL( const TDesC8& aKey, 
+                       const TDesC8& aMKI, 
+                       TUint aN_E = KSRTPDefSessionEncryptionKeyLength, 
+                       TUint aN_A = KSRTPDefSessionAuthenticationKeyLength );
+
+        /**
+        * Two-phased constructor.
+        * CSRTPCryptoContext takes the ownership of MasterKey and MasterSalt 
+        * @param aKey  The master key value. Local copy is made.
+        * @param aMKI  The master key identifier value. Local copy is made.
+        * @param aN_E  The bit length of the encryption key
+        * @param aN_A  The bit length of the authentication key
+        * @leave KErrNone if success, system-wide error code otherwise
+        */
+        IMPORT_C static CSRTPMasterKey* NewLC( const TDesC8& aKey, 
+                       const TDesC8& aMKI, 
+                       TUint aN_E = KSRTPDefSessionEncryptionKeyLength, 
+                       TUint aN_A = KSRTPDefSessionAuthenticationKeyLength );
+        
+        /**
+        * Destructor
+        */
+        ~CSRTPMasterKey();
+
+        /*
+		* Gets current master key value        
+        * @return current master key value
+        */                                
+        IMPORT_C  const TDesC8& MasterKey() const;
+        
+        /*
+		* Gets current MKI
+        * @return current MKI
+        */                                
+        IMPORT_C  const TDesC8& MKI() const;
+                            
+        /*
+		* Gets current encryption key length
+        * @return encryption key length
+        */                                
+        IMPORT_C  TUint EncrKeyLength() const;
+
+        /*
+		* Gets current authorization key length
+        * @return authorization key length
+        */                                
+        IMPORT_C  TUint AuthKeyLength() const;
+
+   
+        /*
+		* Check the validity of the whole SRTPMasterKey
+        * @return validity of this SRTPMasterKey
+        */
+        IMPORT_C  TBool Valid() const;                         
+        
+    private: //methods
+    
+        CSRTPMasterKey( TUint aN_E, TUint aN_A );	              
+        
+        void ConstructL (  const TDesC8& aKey, 
+                           const TDesC8& aMKI );
+    
+      
+        /* assignment operator */
+         const CSRTPMasterKey& operator=(const CSRTPMasterKey& aKey);      
+       
+    private: //data
+        
+        /**
+        * The master key value.
+        * The length of the key is determined by the Size() function.
+        */
+        HBufC8 *iKey;
+
+        /**
+        * The master key identifier value
+        */
+        HBufC8* iMKI;
+
+        /**
+        * The bit length of the encryption key
+        */
+        TUint iN_E;
+
+        /**
+        * The bit length of the authentication key
+        */
+        TUint iN_A;
+
+        friend class CSRTPCryptoContext;
+ 	#ifdef EUNIT_TESTING
+        friend class UT_CSRTPMasterKey;
+    #endif 
+    };
+
+
+#endif // __SRTP_MASTER_KEY_H__