PROBLEM TO BE SOLVED: To improve the reliability of an automobile on which used items such as an ECU are mounted.SOLUTION: A key generation device generates a first key of an on-vehicle computer with the use of an identifier of the on-vehicle computer removed from a first vehicle and mounted on a second vehicle and a master key. A data security device encrypts first data applied to the on-vehicle computer with the first key received from the key generation device and generates encrypted first data. The on-vehicle computer decrypts the encrypted first data received from the data security device with the first key stored in itself.SELECTED DRAWING: Figure 5

    【課題】ECU等の中古品が搭載される自動車の信頼性を向上させること。【解決手段】鍵生成装置は、第1車両から取り外されて第2車両に搭載される車載コンピュータの識別子とマスタ鍵を使用して車載コンピュータの第1鍵を生成し、データ保安装置は、車載コンピュータに適用される第1データを、鍵生成装置から受信した第1鍵により暗号化して、暗号化第1データを生成し、車載コンピュータは、データ保安装置から受信した暗号化第1データを、自己に格納されている第1鍵により復号する。【選択図】図5


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    Title :

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


    Additional title:

    再利用システム、鍵生成装置、データ保安装置、車載コンピュータ、再利用方法、及びコンピュータプログラム


    Contributors:

    Publication date :

    2018-05-17


    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 / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung



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