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:
Sep. 05, 2023
Filed:
Nov. 25, 2020
Motional Ad Llc, Boston, MA (US);
Michael Maass, Pittsburgh, PA (US);
Karl Robinson, Norwell, MA (US);
Lucky Munro, Pittsburgh, PA (US);
Motional AD LLC, Boston, MA (US);
Abstract
This disclosure describes a cyber-security protocol for validating messages being exchanged between two devices of an autonomous vehicle. The protocol includes the independent generation of multiple encryption or session keys by both devices. The encryption keys are generated based on a random number provided by each device. In some embodiments, the random numbers can be accompanied by a shared secret key installed on both devices that can help prevent an unauthorized device from creating a shared set of encryption keys with one of the devices. Including a hash generated using one of the encryption keys and a message sequence counter value in each message can help prevent the injection of previously transmitted messages as a means of disturbing operation of the autonomous vehicle.