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:
Nov. 03, 2020
Filed:
Nov. 07, 2018
Hrl Laboratories, Llc, Malibu, CA (US);
Chongwon Cho, Los Angeles, CA (US);
Chong Ding, Sunnyvale, CA (US);
HRL Laboratories, LLC, Malibu, CA (US);
Abstract
Described is a system for biometric based security. The system applies a reusable fuzzy vault (RFV) process to protect secret information. The RFV process comprises a locking algorithm and an unlocking algorithm. The locking algorithm takes as input a fuzzy string m generated from readings of biometrics and secret information sk to be protected, The locking algorithm outputs a public string vault and a hash value h of sk. The unlocking algorithm takes as input a public string vault and a fuzzy string m', and outputs a string sk′ if fuzzy string m′ is sufficiently close to fuzzy string m. The unlocking algorithm further computes a hash value h′ of sk′ and compares it with h. The system allows access to the secret information sk when h′ is equivalent to h.