Systems and methods for encrypted vehicle data service exchanges
US11496451B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2020 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Dec 30, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.