Patent ID: 11950091
Assignee: TRANSPORTATION IP HOLDINGS, LLC
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 18:
19. A method for securing communication between an onboard communication system and an off-board communication system disposed off-board a vehicle system, the onboard communication system being disposed onboard the vehicle system, the method comprising:
generating one or more encryption keys responsive to the vehicle system operating for a predetermined length of time by hashing a session key with an identifier, the session key including a shared secret key that is that is known by both the onboard communication system and the off-board communication system, the identifier being based on the vehicle system operating for the predetermined length of time, the predetermined length of time being based on a predetermined characteristic of one or more of a time or location of the vehicle system;
generating one or more encryption messages by encrypting one or more messages associated with one or more of the vehicle system or a route over which the vehicle system is configured to move based on the one or more encryption keys; and
communicating the one or more encrypted messages between the onboard communication system and the off-board communication system, wherein the one or more encrypted messages include information about one or more of the vehicle system, or the route over which the vehicle system is configured to move.