Patent ID: 10621331

Abstract:
The purpose of the present invention is to provide a vehicle data rewrite control device and a data rewrite authentication system which prevent unauthorized rewriting of data due to password leakage and/or by spoofing of a connected device. The vehicle data rewrite control device outputs authentication information generated on the basis of data to be updated and a pre-stored vehicle number. In addition, the vehicle data rewrite authentication system comprises: a vehicle having an information processing device which contains pre-stored data to be updated and a vehicle number for the vehicle for which the data is updated and which generates first authentication information from the data and the vehicle number, and the vehicle data rewrite control device which generates and outputs second authentication information on the basis of the data and the vehicle number received from the information processing device; and a vehicle-user communication terminal which, when the updating of the data is permitted on the basis of the second authentication information received from the vehicle, outputs the second authentication information to the information processing device, wherein the information processing device determines whether or not the updating of the data is to be permitted by collating the first authentication information with the second authentication information received from the communication terminal.