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:
Mar. 01, 2022
Filed:
Mar. 19, 2019
University of Florida Research Foundation, Inc., Gainesville, FL (US);
Patrick G. Traynor, Gainesville, FL (US);
Christian Peeters, Gainesville, FL (US);
Bradley G. Reaves, Raleigh, NC (US);
Hadi Abdullah, Gainesville, FL (US);
Kevin Butler, Gainesville, FL (US);
Jasmine Bowers, Gainesville, FL (US);
Walter N. Scaife, Gainesville, FL (US);
University of Florida Research Foundation, Inc., Gainesville, FL (US);
Abstract
Disclosed are various embodiments for detecting Signaling System 7 (SS7) redirection attacks by measuring call audio round trip times between phones. Such redirection attacks force calls to travel longer physical distances than usual, thereby causing longer end-to-end delay. Accordingly, various embodiments implement a distance bounding-inspired protocol that allows for securely characterizing the round trip time between two call endpoints. As a result, telephone users can reliably detect SS7 redirection attacks and protect the information contained in their calls.