The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 08, 2022
Filed:
Mar. 01, 2019
Analog Devices, Inc., Wilmington, MA (US);
John Ross Wallrabenstein, West Lafayette, IN (US);
Analog Devices, Inc., Wilmington, MA (US);
Abstract
This application describes systems and methods for using a garbled circuit and a physical unclonable function (PUF) value to authenticate a device. During enrollment, the device and at least one computer collaboratively construct multiple garbled circuits corresponding to bits of an enrollment PUF value generated by PUF circuitry coupled to the device. During authentication, the device and at least one computer evaluate the multiple garbled circuits using an authentication PUF value. Using the results of this evaluation, the at least one computer compares the enrollment PUF value with the authentication PUF value and determines a distance between them. The at least one computer may authenticate the device when the calculated distance is less than a threshold value.