An anti-fraud method for use in an in-vehicle network system including a plurality of electronic control units that exchange data frames, each having added thereto a message authentication code (MAC), via at least one bus includes: receiving a data frame transmitted on the bus; generating a first MAC by using a MAC key and a value of a counter that counts the number of times a data frame having added thereto a MAC is transmitted; in a case where the verification has failed, (i) generating as second MAC by using an old MAC key; (ii) re-verifying that the received data frame has added thereto the generated second MAC; transmitting, in a case where the re-verification has succeeded, via the bus a key-update frame indicating a request for updating the MAC key; and updating the MAC key in response to the transmission of the key-update frame.


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    Title :

    METHOD FOR HANDLING TRANSMISSION OF FRAUDULENT FRAMES WITHIN IN-VEHICLE NETWORK


    Contributors:

    Publication date :

    2016-10-13


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr



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    Method for handling transmission of fraudulent frames within in-vehicle network

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    METHOD FOR HANDLING TRANSMISSION OF FRAUDULENT FRAMES WITHIN IN-VEHICLE NETWORK

    HAGA TOMOYUKI / MATSUSHIMA HIDEKI / MAEDA MANABU et al. | European Patent Office | 2018

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    Method for handling transmission of fraudulent frames within in-vehicle network

    HAGA TOMOYUKI / MATSUSHIMA HIDEKI / MAEDA MANABU et al. | European Patent Office | 2018

    Free access

    METHOD FOR HANDLING TRANSMISSION OF FRAUDULENT FRAMES WITHIN IN-VEHICLE NETWORK

    HAGA TOMOYUKI / MATSUSHIMA HIDEKI / MAEDA MANABU et al. | European Patent Office | 2017

    Free access