PROBLEM TO BE SOLVED: To improve reliability of data applied to an on-vehicle computer such as an ECU.SOLUTION: An on-vehicle computer comprises a first storage part which stores an initial key generated from a master key and an on-vehicle computer identifier. A data providing apparatus comprises: a second storage part which stores the master key; an initial key generating part which generates the initial key of the on-vehicle computer from the on-vehicle computer identifier and the master key; a first expected value calculation part which calculates an expected value of data applied to the on-vehicle computer by using the initial key of the on-vehicle computer; and a providing part which provides data applied to the on-vehicle computer and the expected value calculated by the first expected value calculation part to a vehicle. The on-vehicle computer comprises: a second expected value calculation part which calculates an expected value of the data provided from the providing part by using the initial key of the first storage part; and an expected value verifying part which compares the expected value provided from the providing part and the expected value calculated by the second expected value calculation part.SELECTED DRAWING: Figure 1

    【課題】ECU等の車載コンピュータに適用されるデータの信頼性を向上させること。【解決手段】車載コンピュータは、マスタ鍵と車載コンピュータ識別子とから生成された初期鍵を記憶する第1記憶部を備え、データ提供装置は、マスタ鍵を記憶する第2記憶部と、車載コンピュータ識別子とマスタ鍵とから車載コンピュータの初期鍵を生成する初期鍵生成部と、該車載コンピュータの初期鍵を使用して、車載コンピュータに適用されるデータの期待値を計算する第1期待値計算部と、車載コンピュータに適用されるデータと第1期待値計算部が計算した期待値とを車両へ提供する提供部と、を備え、車載コンピュータは、提供部から提供されたデータの期待値を、第1記憶部の初期鍵を使用して計算する第2期待値計算部と、提供部から提供された期待値と、第2期待値計算部が計算した期待値とを比較する期待値検証部と、を備える。【選択図】図1


    Access

    Download


    Export, share and cite



    Title :

    DATA PROVIDING SYSTEM, DATA PROVIDING APPARATUS, ON-VEHICLE COMPUTER, DATA PROVIDING METHOD, AND COMPUTER PROGRAM


    Additional title:

    データ提供システム、データ提供装置、車載コンピュータ、データ提供方法、及びコンピュータプログラム


    Contributors:

    Publication date :

    2018-01-11


    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



    INFORMATION PROVIDING DEVICE, INFORMATION PROVIDING METHOD, INFORMATION PROVIDING SYSTEM, COMPUTER PROGRAM, AND DATA STRUCTURE

    OGAWA AKIHIRO / USHIDA KATSUNORI / TAKAYAMA KOICHI | European Patent Office | 2021

    Free access

    INFORMATION PROVIDING APPARATUS, INFORMATION PROVIDING METHOD AND COMPUTER PROGRAM

    ENDO TOSHIKI / AKAHANE MAKOTO / YAMADA KAZUNORI et al. | European Patent Office | 2021

    Free access

    INFORMATION PROVIDING APPARATUS, INFORMATION PROVIDING METHOD, AND COMPUTER PROGRAM

    IWASAKI MAYU | European Patent Office | 2019

    Free access

    MOBILITY SERVICE PROVIDING SYSTEM, MOBILITY SERVICE PROVIDING SERVER, VEHICLE DATA PROVIDING METHOD, AND PROGRAM

    KOMIYAMA MASATOSHI / TAKI KENSHO / XIE LINGFEI et al. | European Patent Office | 2023

    Free access

    IMAGE DATA PROVIDING SYSTEM, IMAGE DATA PROVIDING METHOD AND PROGRAM

    MATSUMOTO KIGEN | European Patent Office | 2021

    Free access