A data communication system (1) is provided with: a center device (2) that distributes update data to a host device; and a host device (4) that installs the update data downloaded from the center device in an electronic control device to be reprogrammed. A counter (CTR) mode is adopted as an encryption mode and a decryption mode for updating data.
数据通信系统(1)具备将更新数据分发到主机装置的中心装置(2)、和将从中心装置下载的更新数据安装于重编对象的电子控制装置的主机装置(4)。采用计数器(CTR)模式作为更新数据的加密方式以及解密方式。
Data communication system, center device, host device, encryption program, and decryption program
数据通信系统、中心装置、主机装置、加密程序以及解密程序
2024-06-04
Patent
Electronic Resource
Chinese
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 / G09C Ver- oder Entschlüsselungsgeräte für Geheimschrift oder andere Zwecke, bei denen Geheimhaltung erforderlich ist , CIPHERING OR DECIPHERING APPARATUS FOR CRYPTOGRAPHIC OR OTHER PURPOSES INVOLVING THE NEED FOR SECRECY |
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