METHOD FOR MANAGING INTELLIGENT TRANSPORT SYSTEM COMMUNICATIONS AND CORRESPONDING ELECTRONIC CONTROL UNIT
卷宗概要
发明人
Laurent TABARIES
IPC 分类
CPC 分类
An electronic control unit includes a communication circuit designed to receive intelligent transport system (ITS) messages, an authentication circuit for authenticating the received messages, and a secure element containing a hardware-secure non-volatile memory and a continually active clock counter. The secure element is configured to assign a timestamp data item from the clock counter to each of the authenticated received messages and to store the authenticated messages along with their respective timestamp data in the hardware-secure non-volatile memory. The secure element assigns a lifetime to each of the authenticated received ITS messages recorded in the hardware-secure non-volatile memory, and enables direct rejection of a received ITS message that repeats a previously received, authenticated, and recorded ITS message whose lifetime has not expired.
原文（中文）
An electronic control unit includes a communication circuit designed to receive intelligent transport system (ITS) messages, an authentication circuit for authenticating the received messages, and a secure element containing a hardware-secure non-volatile memory and a continually active clock counter. The secure element is configured to assign a timestamp data item from the clock counter to each of the authenticated received messages and to store the authenticated messages along with their respective timestamp data in the hardware-secure non-volatile memory. The secure element assigns a lifetime to each of the authenticated received ITS messages recorded in the hardware-secure non-volatile memory, and enables direct rejection of a received ITS message that repeats a previously received, authenticated, and recorded ITS message whose lifetime has not expired.