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:
Oct. 27, 2020
Filed:
May. 03, 2018
Honeywell International Inc., Morris Plains, NJ (US);
Michael L. Olive, Cockeysville, MD (US);
Xiaozhong He, Laurel, MD (US);
Honeywell International Inc., Charlotte, NC (US);
Abstract
Encrypted vehicle data service exchanges are provided. In one embodiment, a vehicle communication manager comprises memory storing an embedded public key (EPK) for a data service; a processor executing a vehicle data service protocol to initiate a session with the data service. The protocol causes the processor to: transmit a session request to the data service and receive a session reply, the reply indicates if the manager is authorized for encrypted service, the processor validates authenticity of the session reply using the EPK; determine whether to enable message encryption, and transmit an initialization request indicating whether encryption is elected; generate a key derivation key (KDK) and transmit the KDK to the data service; receive an initiation response confirming whether message encryption is elected; and when elected generate at least one Message Encryption Key (MEK) from the KDK; encrypt data service uplink and downlink messages using the at least one MEK.