Transportation IP Holdings, LLC

Scott Sollars

Joseph W Gorman

Jeffrey Donald Kernwein

James Allen Oswald

Derek Kevin Woo

Keith E Smith

Ann K Grimm

Andrew Ryan Staats

Stuart John Barr

Matthew Vrba

Kendrick W Gawne

Rebecca W Dreasher

Timothy Allen Schultz

Phillip A Burgart

Francois P Pretorius

Christopher Claussen

Janmejay Tripathy

Craig Karl Green

Jerrid D Chapman

Adam Charles Hausmann

Edward J Kuchar

Tania Lindsley

Shannon K Struttmann

Stephen Craven

James Lucas

Irwin Morris

A system and a method include an onboard communication system configured to be disposed onboard a vehicle system and comprising one or more processors. The one or more processors may generate a session key that includes a shared secret key that is known by the onboard communication system and an off-board communication system, generate one or more encryption keys by hashing the session key with an identifier based on a cycle time that is known by the onboard communication system and the off-board communication system, generate one or more encrypted messages by encrypting one or more messages associated with one or more of the vehicle system or a route over which the vehicle system moves based on the one or more encryption keys, and communicate the one or more encrypted messages from the onboard communication system to the off-board communication system.

Communication system and method

A computer-implemented method is provided that includes obtaining a first secret and a first public key, and obtaining a second secret a second public key. The method may also include authenticating the first public key of the first vehicle based on a first private key associated with the first vehicle, and authenticating the second public key of the second vehicle based on a second private key associated with the second vehicle. The method may also include preventing a man-in-the-middle attack, by securing at least one of a first vehicle-to-central office communication, a central office-to-first vehicle communication, or a first vehicle-to-second vehicle, wherein the first vehicle-to-central office communication and the central office-to-first vehicle communication are authenticated based on a determined private key associated with a respective first vehicle on-board computer, and sending a message, with the central office server, to a vehicle associated with a conditional movement authority.

Secure vehicle to vehicle PTC communication

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Marion, IA, United States of America

Scott Sollars