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:
Aug. 23, 2022
Filed:
Oct. 04, 2019
Block, Inc., San Francisco, CA (US);
Jeremy Wade, San Francisco, CA (US);
William Hardy, Pleasanton, CA (US);
Malcolm Ronald Smith, Toronto, CA;
Afshin Rezayee, Richmond Hill, CA;
Yue Yang, Thornhill, CA;
Block, Inc., San Francisco, CA (US);
Abstract
An electronic device may include circuitry and an anti-tamper device having a physical characteristic that changes in response to a tamper attempt. The circuitry is configured to determine physically unclonable function (PUF) data based on the physical characteristic and to perform at least one secure operation based on the PUF data. The circuitry is further configured to detect the tamper attempt based a change to the physical characteristic and to perform at least one action in response to detection of the tamper attempt for protecting the electronic device from the tamper attempt.