Deterrence of device counterfeiting, cloning, and subversion by substitution using hardware fingerprinting
| DWPI Title: Computing device for deterrence of device cloning, counterfeiting and subversion, has decryptor for receiving authentication challenge encrypted with public key and outputting response to authentication challenge decrypted with private key |
| Abstract: Deterrence of device subversion by substitution may be achieved by including a cryptographic fingerprint unit within a computing device for authenticating a hardware platform of the computing device. The cryptographic fingerprint unit includes a physically unclonable function (“PUF”) circuit disposed in or on the hardware platform. The PUF circuit is used to generate a PUF value. A key generator is coupled to generate a private key and a public key based on the PUF value while a decryptor is coupled to receive an authentication challenge posed to the computing device and encrypted with the public key and coupled to output a response to the authentication challenge decrypted with the private key. |
| Use: Computing device for deterrence of device cloning, counterfeiting and subversion. |
| Advantage: The random PUF output can be subsequently used to generate the device fingerprint that can be authenticated at any time during deployment phase of a component life cycle using a cryptographic challenge/response protocol. |
| Novelty: The device has a cryptographic fingerprint unit (800) for authenticating a hardware platform. The fingerprint unit has a physically unclonable function (PUF) circuit (805) outputting a PUF value. Programmable PUF perturbation devices (825) are coupled to signal paths within the PUF circuit. A key generator (815) generates a private key and a public key based on the PUF value. A decryptor (820) receives an authentication challenge posed to the device and encrypted with the public key and coupled to output a response to the authentication challenge decrypted with the private key. |
| Filed: 7/28/2010 |
| Application Number: US2010844860A |
| Tech ID: SD 11427.0 |
| 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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