Hardware device to physical structure binding and authentication
| DWPI Title: Apparatus for cryptographically fingerprinting binding of hardware device and physical structure, has cryptographic unit that allows challenger to authenticate binding of hardware device and physical structure |
| Abstract: 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. |
| Use: Apparatus for cryptographically fingerprinting binding of hardware device and physical structure. |
| Advantage: Detection and deterrence of device tampering and subversion can be achieved by including a cryptographic fingerprint unit within a hardware device for authenticating a binding of the hardware device and a physical structure. |
| Novelty: The apparatus has a cryptographic fingerprint unit (235) that includes an internal physically unclonable function (PUF) circuit that is arranged on a hardware device (105). The binding logic (210) is coupled to receive PUF value and the external PUF value associated with the physical structure. A cryptographic unit (230) is coupled to receive the binding PUF value. The cryptographic unit is configured to use the binding PUF value to allow a challenger to authenticate the binding of the hardware device and the physical structure (122). |
| Filed: 10/20/2010 |
| Application Number: US2010908324A |
| Tech ID: SD 11724.0 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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