System and Method for using Signal Waveform Analysis for Detecting a Change in a Wired Network

    公开(公告)号:US20210350237A1

    公开(公告)日:2021-11-11

    申请号:US17359806

    申请日:2021-06-28

    Abstract: An analyzer for monitoring a configuration of a wired network medium that is used for communication between multiple devices. The configuration change includes an additional device tapping to the medium for eavesdropping, or the substituting one of the devices. The analyzer is connected to the medium for receiving, storing, and analyzing waveforms of the physical-layer signals propagated over the medium. The analysis includes comparing the received signals to reference signals, and notifying upon detecting a difference according to pre-set criteria. The analysis may be time or frequency-domain based, and may use a feed-forward Artificial Neural Network (ANN). The wired network may be an automotive or in-vehicle network, PAN, LAN, MAN, or WAN, may use balanced or unbalanced signaling, and may be configured as point-to-point or multi-point topology. The analyzer may be connected at an end of the medium, and may be integrated with one of the devices.

    Security system and method for protecting a vehicle electronic system

    公开(公告)号:US11120149B2

    公开(公告)日:2021-09-14

    申请号:US16702617

    申请日:2019-12-04

    Abstract: Security system for protecting a vehicle electronic system by selectively intervening in the communications path in order to prevent the arrival of malicious messages at ECUs, in particular at the safety critical ECUs. The security system includes a filter which prevents illegal messages sent by any system or device communicating over a vehicle communications bus from reaching their destination. The filter may, at its discretion according to preconfigured rules, send messages as is, block messages, change the content of the messages, request authentication or limit the rate such messages can be delivered, by buffering the messages and sending them only in preconfigured intervals.

    SECURITY SYSTEM AND METHOD FOR PROTECTING A VEHICLE ELECTRONIC SYSTEM
    9.
    发明申请
    SECURITY SYSTEM AND METHOD FOR PROTECTING A VEHICLE ELECTRONIC SYSTEM 有权
    用于保护车辆电子系统的安全系统和方法

    公开(公告)号:US20150020152A1

    公开(公告)日:2015-01-15

    申请号:US14376827

    申请日:2013-03-28

    Abstract: Security system for protecting a vehicle electronic system by selectively intervening in the communications path in order to prevent the arrival of malicious messages at ECUs, in particular at the safety critical ECUs. The security system includes a filter which prevents illegal messages sent by any system or device communicating over a vehicle communications bus from reaching their destination. The filter may, at its discretion according to preconfigured rules, send messages as is, block messages, change the content of the messages, request authentication or limit the rate such messages can be delivered, by buffering the messages and sending them only in preconfigured intervals.

    Abstract translation: 用于通过选择性地介入通信路径来保护车辆电子系统的安全系统,以防止恶意消息到达ECU,特别是在安全关键的ECU处。 安全系统包括一个过滤器,该过滤器防止任何系统或设备通过车辆通信总线通信而发送的非法消息到达其目的地。 过滤器可以根据预先配置的规则根据预先配置的规则发送消息,阻塞消息,改变消息的内容,请求认证或限制这些消息可以传送的速率,通过缓冲消息并仅在预配置的间隔中发送 。

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