<p>To enable your application to use the message port functionality:</p>
<ol>
<li><p>You need 2 applications to communicate with each other through the message port.</p></li>
-<li><p>To use trusted message port communication, create an author certificate, register the certificate in the IDE, and grant permissions by the application certificate in the manifest editor.</p></li>
+<li><p>To use trusted message port communication, create an author certificate and register it.</p>
+ <p>You can create and register certificate in Help -> Preferences -> Tizen Sdk -> Security profiles menu. </p>
+ <p>Both applications must have a same certificate for trusted message port communication.</p>
+</li>
<li>
<p>To use the functions and data types of the Message Port API (in <a href="../../../../org.tizen.native.mobile.apireference/group__CAPI__MESSAGE__PORT__MODULE.html">mobile</a> and <a href="../../../../org.tizen.native.wearable.apireference/group__CAPI__MESSAGE__PORT__MODULE.html">wearable</a> applications), include the <span style="font-family: Courier New,Courier,monospace"><message_port.h></span> header file in your application:</p>
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