Hmm, because you mentioned verisign I jumped to the conclusion that you were talking about HTTPS, but by "data security" were instead talking about keeping people from breaking into your server? You wouldn't need HTTPS for that... with Slicehost or Linode you'll be using ssh to login to your server, and ssh is encrypted and secure.
You were correct. I was looking to log into my web-app using https. And in retrospect (you're right again) I could just log into the secure server and show the work that way too. All that being said I still would like to learn setting up https, even for the sake of learning (and I'm sure someday I will need to).