Data provision system, data security device, data provision method, and computer program
US11212109B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2017 |
| Grant date | Dec 28, 2021 |
| Priority date | — |
| Expiry date | Jul 16, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/84
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A data provision system includes a data provision device and a data security device installed in a vehicle. The data provision device includes a vehicle interface configured to transmit data to and receive data from the vehicle; and an cryptographic processing unit configured to generate an electronic signature of application data to be applied to an in-vehicle computer installed in the vehicle by using a secret key of the data provision device, wherein application data with the electronic signature, which is obtained by attaching the electronic signature to the application data, is transmitted to the vehicle through the vehicle interface. The data security device includes an interface unit configured to transmit data to and receive data from a device outside the data security device; and an cryptographic processing unit configured to verify the electronic signature of the application data with the electronic signature received from the data provision device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.