To provide a method of updating fraud detection rules that makes it possible to update rules to be standards for detecting malicious frames as needed in an on-board network system.SOLUTION: A method of updating fraud detection rules comprises: determining, based on fraud detection rules, whether or not a message transmitted on a bus connected to a fraud detecting electronic control unit conforms to the rules; receiving, from an external device, delivery data including updating fraud detection rules and bus type information indicating a type of bus to which the updating fraud detection rules are to be applied; determining whether or not a vehicle is running; when it is determined that the vehicle is running, additionally determining whether or not the bus type information indicates a drive bus related to running; and (i) when the bus type information indicates a drive bus related to running, then not conducting an update process, and (ii) when the bus type information does not indicate a drive bus related to running, then updating the fraud detection rules.SELECTED DRAWING: Figure 1

    【課題】車載ネットワークシステムにおいて必要に応じて不正なフレームを検知する為の基準となるルールの更新を可能にする不正検知ルール更新方法を提供する。【解決手段】不正検知ルール更新方法は、不正検知電子制御ユニットが接続されたバス上で送信されるメッセージについてのルールへの適合性の判定を不正検知ルールに基づいて行い、外部装置から更新用不正検知ルールと更新用不正検知ルールの適用対象のバスの種別を示すバス種別情報とを含む配信データを受信し、車両が走行しているか否かを判定し、車両が走行していると判定した場合に、更にバス種別情報が走行に関連する駆動系のバスを示しているか否かを判定し、(i)バス種別情報が走行に関連する駆動系のバスを示している場合に更新処理を行わず、(ii)バス種別情報が走行に関連する駆動系のバスを示していない場合に不正検知ルールを更新する。【選択図】図1


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    Title :

    METHOD OF UPDATING FRAUD DETECTION RULES, FRAUD DETECTING ELECTRONIC CONTROL UNIT, AND ON-BOARD NETWORK SYSTEM


    Additional title:

    不正検知ルール更新方法、不正検知電子制御ユニット及び車載ネットワークシステム


    Contributors:

    Publication date :

    2019-11-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    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



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