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.


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    Title :

    REUSE SYSTEM, KEY CREATING DEVICE, DATA SECURITY DEVICE, ON-VEHICLE COMPUTER, REUSE METHOD, AND COMPUTER PROGRAM


    Additional title:

    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


    Contributors:

    Publication date :

    2023-02-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    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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