Well, a good thing to have in a chat is encryption between clients just incase someone connects to the same channel. So basically you send an encrpyted version of waht you would send. When you receive a message you display a decrypted version of what's been sent. I never tried it before and my Moo knowledge is quite poor so before I start doing anything I would like to find out something about it. Can someone give me a some tips, what's better, what not. What extension should I use, what's the simplest way to use the extension and maybe a brief walkthrough.