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:
Oct. 19, 2021
Filed:
Dec. 14, 2018
Westinghouse Air Brake Technologies Corporation, Wilmerding, PA (US);
Rebecca W. Dreasher, Longmont, CO (US);
Stephen Craven, Hiawatha, IA (US);
Matthew Steven Vrba, Marion, IA (US);
WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORPORATION, Wilmerding, PA (US);
Abstract
A system and method for a secure key exchange between two trains operating within a track network may include generating a first or second public key based on a secret random number, generating a shared secret key based on the first or second public key, authenticating one or more key exchange communications by a remote server based on a digital signature established with an on-board key associated with the first train, authenticating a communication by a remote server based on the digital signature of the second train signed with an on-board key associated with the second train, and establishing secure train-to-train communication between the two trains by generating a shared secret key based on a public key received from the other train, the secure key exchange protecting the two trains from a man-in-the-middle attack.