Deterrence of device counterfeiting, cloning, and subversion by substitution using hardware fingerprinting
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United States of America Patent
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Sep 30, 2014
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app pub date -
Jul 28, 2010
filing date -
Jul 28, 2010
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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.
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