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. 15, 2026
Filed:
Jan. 31, 2025
GM Global Technology Operations Llc, Detroit, MI (US);
Brian Farrell, Troy, MI (US);
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A method causes the data processing hardware to perform operations including provisioning in-vehicle secret keys to in-vehicle devices, receiving a responder ID, providing a host public key and the responder ID to one of one or more of the in-vehicle devices, a secure element of the host ECU, or one of the in-vehicle devices, generating, at each of the in-vehicle devices, a device MAC over the responder ID using a responder KDF key, sending a request including a responder production secret key to a responder, receiving a responder service secret key at the host ECU, verifying a legitimacy of the responder, generating a random number corresponding to a new responder production secret key encrypted with the responder service secret key, sending the generated random number to the responder, receiving a confirmation from the responder, and removing the responder KDF keys at each of the plurality of devices.