A reuse system includes: a key generation device; an in-vehicle computer that is detached from a first vehicle and is installed in a second vehicle; and a data security device that is installed in the second vehicle. The key generation device includes a vehicle interface, and a key generation unit that generates a first key that is the same as a key stored in the in-vehicle computer from a time when being installed in the first vehicle by using an in-vehicle computer identifier, and a master key that is common to the first and second vehicles, and transmits the first key to the second vehicle. The data security device includes a first interface unit, and a first cryptographic processing unit that encrypts first data, which is applied to the in-vehicle computer, with the first key to generate encrypted first data, and transmits the encrypted first data to the in-vehicle computer. The in-vehicle computer includes a second interface unit, a second storage unit that stores the first key from a time when being installed in the first vehicle, and a second cryptographic processing unit that decrypts the encrypted first data with the first key.
REUSE SYSTEM, KEY CREATING DEVICE, DATA SECURITY DEVICE, ON-VEHICLE COMPUTER, REUSE METHOD, AND COMPUTER PROGRAM
WIEDERVERWENDUNGSSYSTEM, SCHLÜSSELERZEUGUNGSVORRICHTUNG, DATENSICHERHEITSVORRICHTUNG, COMPUTER AN BORD EINES FAHRZEUGS UND COMPUTERPROGRAMM
SYSTÈME DE RÉUTILISATION, DISPOSITIF DE CRÉATION DE CLÉ, DISPOSITIF DE SÉCURITÉ DE DONNÉES, ORDINATEUR EMBARQUÉ, PROCÉDÉ DE RÉUTILISATION ET PROGRAMME INFORMATIQUE
2023-02-15
Patent
Electronic Resource
English
IPC: | H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung |
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