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:
Aug. 23, 2016
Filed:
Mar. 21, 2014
Applicant:
GM Global Technology Operations Llc, Detroit, MI (US);
Inventors:
David Nairn, Plymouth, MI (US);
Thomas Forest, Macomb, MI (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
H04L 9/32 (2013.01); H04L 9/3242 (2013.01); H04L 2209/84 (2013.01);
Abstract
A method of securing electronic control units (ECUs) using message authentication codes includes receiving a message authentication code (MAC) at an ECU; determining that the length of the MAC is greater than or equal to a predefined bit value; authenticating the MAC when the length of the MAC has been determined to be equal to or greater than the predefined bit value; and rejecting the MAC when the length of the MAC has been determined to be less than the predefined bit value.