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:
Jun. 05, 2012
Filed:
Jun. 16, 2011
Elizabeth Chesnutt, Troy, MI (US);
Ki Hak Yi, Windsor, CA;
Anthony J. Sumcad, Southfield, MI (US);
Kevin R. Krause, Plymouth, MI (US);
Elizabeth Chesnutt, Troy, MI (US);
Ki Hak Yi, Windsor, CA;
Anthony J. Sumcad, Southfield, MI (US);
Kevin R. Krause, Plymouth, MI (US);
General Motors LLC, Detroit, MI (US);
Abstract
A vehicle telematics unit or other electronic hardware in a vehicle authenticates an incoming SMS message and provides additional security features above and beyond those inherent to the SMS protocol. A call center uses a mathematical function to derive a security code, and then sends an SMS message to the vehicle. The telematics unit can utilize the transmitted information to authenticate the sender of the SMS message and/or its contents. One group of suitable mathematical functions utilizes keyed-hash message authentication codes (HMACs).