公开(公告)号：US11265717B2

公开(公告)日：2022-03-01

申请号：US16357998

申请日：2019-03-19

Applicant: University of Florida Research Foundation, Inc.

Inventor： Patrick G. Traynor ,  Christian Peeters ,  Bradley G. Reaves ,  Hadi Abdullah ,  Kevin Butler ,  Jasmine Bowers ,  Walter N. Scaife

IPC: H04L29/06 ,  H04W8/06 ,  H04W8/04 ,  H04W12/121 ,  H04W64/00 ,  H04L9/32 ,  H04M3/22 ,  H04W12/50 ,  H04W12/0433

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.

公开(公告)号：US20190297503A1

公开(公告)日：2019-09-26

申请号：US16357998

申请日：2019-03-19

Applicant: University of Florida Research Foundation, Inc.

Inventor： Patrick G. Traynor ,  Christian Peeters ,  Bradley G. Reaves ,  Hadi Abdullah ,  Kevin Butler ,  Jasmine Bowers ,  Walter N. Scaife

IPC: H04W12/12 ,  H04W12/04 ,  H04W12/00 ,  H04L9/32 ,  H04M3/22 ,  H04W64/00

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.