Data provision system, data security device, data provision method, and computer program

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11212109
APP PUB NO 20190305962A1
SERIAL NO

16307394

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Abstract

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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.

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Patent Owner(s)

  • KDDI CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kubota, Ayumu Tokyo, JP 19 507
Mizoguchi, Seiichiro Tokyo, JP 12 83
Takemori, Keisuke Tokyo, JP 22 287

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