I think someone's asked this before and I believe Jake and Phil want to keep it a secret so no one can cheat their way into the high scores

It basically takes a string and then changes some values for a given key, I am going to make it more secure at some point soon and then I shall say how it works. Basically if I gave out to many clues then the methods used could be easily cracked. It took us a while to get everything sorted but I would suggest you come up with your own method. Try finding stuff out about encryption and see what you can get.