| 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. |
| Filed: 7/28/2010 |
| Application Number: 12/844860 |
| 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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