US Patent 9602282 Secure software and hardware association technique

Authenticated hardware and authenticated software are cryptographically associated using symmetric and asymmetric cryptography. Cryptographically binding the hardware and software ensures that original equipment manufacturer (OEM) hardware will only run OEM software. Cryptographically binding the hardware and software protects the OEM binary code so it will only run on the OEM hardware and cannot be replicated or altered to operate on unauthorized hardware. In one embodiment, critical security information associated with the equipment is loaded from a memory at startup time. The critical security information is stored in the memory, in encrypted form, using a unique secret value. The secret value is used to retrieve a chip encryption key and one or more image authentication keys that can be used to associate program code with an original equipment manufacturer. These keys are used to authenticate the program code.