I've recently been looking into implementing a bit of partial encryption in a new project that I currently have in development and would like know what method would be best to force an encrypted script to call home and verify an auto-generated license number (once or twice per client - install/admin login). Is there some sort of service offered somewhere on the Internet that already has something similar that could be used with my work?
This is type of thing is a bit new to me and to be honest I'm not quite sure how to go by accomplishing it. Insight on this would be very much welcomed.