I have no interest in teaching you how to better use the google search engine. If you're having trouble coming across this stuff, you do indeed need to do better at thinking up search terms to use. I'm sure there's plenty of information available on that subject as well. My only suggestion is that you find reference material a little more current then 2009.
I'm done feeding the troll now.
Translation: "I searched and couldn't find anything, therefore I'm going to pretend that I won't waste my time because it's so easy and call you a troll for added effect."
If you really want the feature, and Khaled has asked a genuine question about how to prevent MITM style attacks, then maybe you should just humour him and it might give the feature a nudge up his todo list. Implementing a feature when you have the necessary research in front of you is usually quite trivial; having to research something is much more time consuming.