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:
Sep. 07, 2021
Filed:
Jun. 06, 2019
Visa International Service Association, San Francisco, CA (US);
Fahimeh Rezaei, Mountain View, CA (US);
Marc Kekicheff, Foster City, CA (US);
Yuexi Chen, Foster City, CA (US);
Visa International Service Association, San Francisco, CA (US);
Abstract
Systems and methods are disclosed for preventing relay or replay attacks using time-stamped, localized footprint data. An access device may receive, from one or more beacon transmitters, a plurality of broadcast messages, each broadcast message, of the plurality of broadcast messages, comprising a timestamp and a unique identifier for a beacon transmitter, of the one or more beacon transmitters. The access device may store the timestamps and the unique identifiers. The access device may receive, from a user device, an access request comprising timestamps and unique identifiers corresponding to a subset of the broadcast messages received by the access device. The access device may verify that the stored timestamps and unique identifiers match the timestamps and unique identifiers received from the user device. Based on the verifying, the access device may authenticate the access request.