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. 17, 2021
Filed:
Jan. 30, 2019
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Katsumi Nagata, Foster City, CA (US);
Divya Sai Toopran, Sunnyvale, CA (US);
Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US);
Abstract
Methods, systems, and devices of an encryption key distribution system. The encryption key distribution system includes a first computing device, a second computing device and a third computing device. The first computing device includes a memory configured to store a first distributed ledger. The first computing device includes an electronic control unit. The electronic control unit is configured to provide the first distributed ledger to the second computing device when the distance is less than a threshold distance. The electronic control unit is configured to receive a second distributed ledger from the second computing device. The electronic control unit is configured to verify the second computing device using the second distributed ledger. The electronic control unit is configured to receive an encryption key from the third computing device after the second computing device has been verified.