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Hardware device to physical structure binding and authentication

United States Patent

August 20, 2013
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
Detection and deterrence of device tampering and subversion may be achieved by including a cryptographic fingerprint unit within a hardware device for authenticating a binding of the hardware device and a physical structure. The cryptographic fingerprint unit includes an internal physically unclonable function ("PUF") circuit disposed in or on the hardware device, which generate an internal PUF value. Binding logic is coupled to receive the internal PUF value, as well as an external PUF value associated with the physical structure, and generates a binding PUF value, which represents the binding of the hardware device and the physical structure. The cryptographic fingerprint unit also includes a cryptographic unit that uses the binding PUF value to allow a challenger to authenticate the binding.
Hamlet; Jason R. (Albuquerque, NM), Stein; David J. (Albuquerque, NM), Bauer; Todd M. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
12/ 908,324
October 20, 2010
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH This invention was developed with Government support under Contract No. DE-AC04-94AL85000 between Sandia Corporation and the U.S. Department of Energy. The U.S. Government has certain rights in this invention.