6
votes
3answers
472 views

A safe license System

So I'm trying to think of a good way to check if the license key a user supplies for a program is legit or not. Let's suppose this is the way they get there license They make some type of purchase. ...
9
votes
4answers
7k views

License key / Serial number generator and checker

I need a serial number generator and accompanying checker. I would like to be able to set a salt (and maybe a length). The generator should only produce serial numbers that pass the test of the ...