SYSTEM, CERTIFICATION AUTHORITY, VEHICLE-MOUNTED COMPUTER, VEHICLE, PUBLIC KEY CERTIFICATE ISSUANCE METHOD, AND PROGRAM

摘要

A system includes a certification authority and a vehicle-mounted computer mounted in a vehicle. The certification authority includes a certification authority key storage that stores a certification authority public key certificate and a certification authority private key, a first communicator that receives an issuance request that is configured to request issuance of a vehicle-mounted computer public key certificate, and a vehicle-mounted computer public key certificate issuer that is configured to apply a signature to the vehicle-mounted computer public key included in the issuance request with the certification authority private key and issue the vehicle-mounted computer public key certificate. The first communicator is configured to transmit the vehicle-mounted computer public key certificate to the vehicle-mounted computer that is a transmission source of the issuance request. The vehicle-mounted computer includes a vehicle-mounted computer key generator that is configured to generate the vehicle-mounted computer public key and a vehicle-mounted computer private key that is paired with the vehicle-mounted computer public key, and a public key certificate acquirer that is configured to transmit the issuance request to the certification authority and acquires the vehicle-mounted computer public key certificate that the certification authority transmits in response to the issuance request.