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:
Jul. 15, 2014
Filed:
Sep. 19, 2008
Thomas Ziola, Merlo Park, CA (US);
Zdenek Paral, San Jose, CA (US);
Srinivas Devadas, Lexington, MA (US);
Gookwon Edward Suh, Palo Alto, CA (US);
Vivek Khandelwal, Santa Clara, CA (US);
Thomas Ziola, Merlo Park, CA (US);
Zdenek Paral, San Jose, CA (US);
Srinivas Devadas, Lexington, MA (US);
Gookwon Edward Suh, Palo Alto, CA (US);
Vivek Khandelwal, Santa Clara, CA (US);
Verayo, Inc., San Jose, CA (US);
Abstract
Physical Unclonable Functions (PUFs) for authentication can be implemented in a variety of electronic devices including FPGAs, RFIDs, and ASICs. In some implementations, challenge-response pairs corresponding to individual PUFs can be enrolled and used to determine authentication data, which may be managed in a database. Later when a target object with a PUF is intended to be authenticated a set (or subset) of challenges are applied to each PUF device to authenticate it and thus distinguish it from others. In some examples, authentication is achieved without requiring complex cryptography circuitry implemented on the device. Furthermore, an authentication station does not necessarily have to be in communication with an authority holding the authentication data when a particular device is to be authenticated.