Just Google for how to make SSL certificates and you can find a ton of different docs on the subject.

For something as simple as this I would just use a REST interface with something like Apache/mod_perl... but if you want IO::Socket::SSL is just the same as building any other IO::Socket like server code. Just with the SSL happening in the "background" so to speak on the wire. All you really need to do is provide it with the SSL certificate and key you make.