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:
Nov. 15, 2022
Filed:
Dec. 06, 2019
The Mitre Coporation, McLean, VA (US);
Joseph Chapman, Chelmsford, MA (US);
Hristos N. Giannopoulos, Woburn, MA (US);
Alexander Wyglinski, West Boylston, MA (US);
The MITRE Corporation, McLean, VA (US);
Abstract
Provided herein are systems and methods for authenticating controlled area network (CAN) transmissions using physical layer characteristics. In one or more examples, a device that is configured to authenticate CAN transmissions can be connected to an existing CAN. The device can be configured to undergo a training phase in which average transition waveforms of one or more electronic control units (ECUs) are created. When the device is in operation, each CAN transmission received by the device can be compared against the average transition waveforms to determine the ECU that is most likely to have sent the transmission. In one or more examples, the identified most likely ECU can be compared against the ECU identified by an arbitration ID of the transmission. If there is a mismatch then in one or more examples the device can alert to the possibility of a suspicious ECU transmission.