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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.:

US 11539714 B1

PDFFull Text
Date of Patent:
Dec. 27, 2022

Filed:

Sep. 17, 2020

Assigning categories for messages and symmetric key per category to localize the impact in case of key compromise

Applicant:

Ford Global Technologies, Llc, Dearborn, MI (US);

Inventors:

Xin Ye, Farmington Hills, MI (US);

Venkata Kishore Kajuluri, Southgate, MI (US);

Lisa Therese Boran, Northville, MI (US);

Bradley Smith, Ann Arbor, MI (US);

Assignee:

Ford Global Technologies, LLC, Dearborn, MI (US);

Attorneys:

Brandon Hicks

Kilpatrick Townsend & Stockton LLP

Primary Examiner:

Shaqueal D Wade-Wright

Int. Cl.
CPC ...
H04L 9/40 (2022.01); G06F 16/28 (2019.01); H04L 9/08 (2006.01); H04L 9/14 (2006.01); H04L 9/32 (2006.01);
U.S. Cl.
CPC ...
H04L 63/123 (2013.01); G06F 16/285 (2019.01); H04L 9/0894 (2013.01); H04L 9/14 (2013.01); H04L 9/32 (2013.01); H04L 9/40 (2022.05); H04L 63/0435 (2013.01);
Abstract

Systems and methods described herein provide for assigning classifications to signals and corresponding messages for prioritization and transmission across a vehicle CAN bus. The assigned classifications are used to select authentication keys specific to each classification of message. Nodes of the CAN bus can include different sets of keys based on the classifications of messages handled at the nodes. Keys are distributed and localized to reduce any potential impact on critical functions of the vehicle system that may result from compromise of an authentication key.

Find Patent Forward Citations

Ye, Xin. (2022). Assigning categories for messages and symmetric key per category to localize the impact in case of key compromise (U.S. Patent No. 11539714). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11539714

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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