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.

Date of Patent:
Jul. 06, 2021

Filed:

Jun. 30, 2016
Applicant:

Fortinet, Inc., Sunnyvale, CA (US);

Inventor:

Anil Kaushik, Bangalore, IN;

Assignee:

Fortinet, Inc., Sunnyvale, CA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04W 4/029 (2018.01); H04W 12/122 (2021.01); H04W 84/12 (2009.01);
U.S. Cl.
CPC ...
H04L 63/1416 (2013.01); H04L 63/1483 (2013.01); H04W 4/029 (2018.02); H04W 12/122 (2021.01); H04W 84/12 (2013.01);
Abstract

Poisoning attacks by spoofing location beacons in a WLAN are detected using silence periods. A location beacon identifier is received from a mobile device allegedly within range of a location device transmitting location beacons, along with a timestamp of transmission for each of the location beacons. Also silence periods associated with the location device, during which transmissions of location beacons are temporarily discontinued, and which are unknown to the public, are determined or retrieved. The location beacon transmission time is compared to the silence periods. Responsive to the location beacon transmission time corresponding to at least one of the silence periods, the location device flagged as poisoned.


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