Abstract: Systems and method provide for generation of a unique key pair having a public and private key for an individual device. The public key may be embedded (e.g., burned or etched) into a central processing unit (CPU) during the manufacturing process. The burning or etching process may make the public key unmodifiable. The matching private key may then be stored in a secure database. Software code may be available through download over a computer based network (e.g., the Internet). A request may be made for the software code. Prior to delivery, the software code may be digitally signed with the private key corresponding to the individual device. Logic programmed into the CPU may prevent the execution of code that is not signed with the private key that corresponds to the public key.