Management system, vehicle, and information processing method

One vehicle in a management system including one or more vehicles and one or more authentication servers, the vehicle comprising:

• a communication circuit that performs communication with at least one authentication server of the one or more authentication servers;
• a plurality of electronic control units (ECUs) connected to a network inside the one vehicle;
• a detection circuit that, when one or more electronic control units of the plurality of electronic control units have been replaced, detects the replaced one or more electronic control units among the plurality of electronic control units;
• and
• a transaction data generating circuit that
• generates for transmission, in response to a detection of the replaced one or more electronic control units, first transaction data including a first identifier that uniquely identifies each of the replaced one or more electronic control units which the detection circuit has detected,
• receives, when the first transaction data is not valid, confirmation information to confirm with a user of the one vehicle whether to use the replaced one or more electronic control units,
• generates second transaction data including a result of confirmation by the user, and
• transmits the second transaction data to the at least one authentication server of the one or more authentication servers.

A management system including:

• one or more authentication servers;
• and
• one or more vehicles,
• wherein at least one vehicle included in the one or more vehicles comprises:
• a communication circuit that performs communication with at least one authentication server of the one or more authentication servers;
• a plurality of electronic control units (ECUs) connected to a network inside the one vehicle;
• a detection circuit that, when one or more electronic control units of the plurality of electronic control units have been replaced, detects the replaced one or more electronic control units among the plurality of electronic control units;
• and
• a transaction data generating circuit that
• generates for transmission, in response to a detection of the replaced one or more electronic control units, first transaction data including a first identifier that uniquely identifies each of the replaced one or more electronic control units which the detection circuit has detected,
• wherein the at least one authentication server:
• generates, when the first transaction data is not valid, confirmation information to confirm with a user of the one vehicle whether to use the replaced one or more electronic control units,
• receives second transaction data including a result of confirmation by the user, and
• records the second transaction data on a storage device.