Key Generator

I need a key generator made. The key generator would need to generate a key from a Product ID. Once a user enters the 5 digit Product ID it will generate a 5 digit key. I have Product ID's and a Keys that's been tested and works, I would need someone to make a Keygen based off the formula from the Product ID and Key I supply. I will work with the programmer to test if the key that the keygen generates works. I will make payment upon project completion. I will not request a copy of the executable till a payment is made. In this key gen it will be a 2 process key maker. Product ID > Key (first formula) Product ID > Key (second formula) Please contact me if you have any questions. I would like someone to inspect the Product ID, Keygen and files to confirm you understand what the project involves and are capable of completing it. The length of the key should depend on the length of Product ID, should be minimum of 5 characters, maximum of 7 characters. **Additional Information For this project I will be supplying the Product ID and the key that is tied to it, the project consist of determining the formula for both product id's. I will supply you a second product id and key that are tied together for reference and/or determining the formula. I can supply you the software, this software is in a .bin like format. Please have a look at the attachment and from observations let me know if you can work on this project. The Key Gen does not have to be a nice gui, can be very basic or command based. As long as when I input a 5 or 7 digit Product ID it will generate the key associated with it. Thanks **