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1. 发明公开

EP3037306A1 METHOD FOR PREVENTING RELAY ATTACK ON VEHICLE SMART KEY SYSTEM 审中-公开
标题翻译： VERFAHREN ZUR VERHINDERUNG EINES RELAISANGRIFFS AUF INTELLIGENTEFAHRZEUGSCHLÜSSELSYSTEME
公开(公告)号：EP3037306A1
公开(公告)日：2016-06-29
申请号：EP13891779.4
申请日：2013-10-04
申请人： Dae Dong Co. Ltd.
发明人： KIM, Gyu Ho , KIM, Ju Min , KIM, Shim Soo
IPC分类号： B60R25/20 , B60R25/24 , B60R25/10 , E05B49/00
CPC分类号： B60R25/246 , B60R25/20 , B60R25/24 , B60R25/30 , G07C9/00309 , G07C2009/00555 , G07C2009/00793 , H04L63/1466 , H04W12/06
摘要： A method for preventing a relay attack of a smart key system for a vehicle according to the present invention accurately calculates a current spaced distance between an SMK unit and a fob key by using an RSSI included in a response signal and a current voltage level in a process of decoding the response signal when the fob key carried by a user receives a signal applied from the SMK unit installed in a vehicle and then transmits the response signal having at least two kinds of infonnation to the SMK unit, and detects a challenge signal applied from the SMK unit installed in the vehicle and a noise signal included in the response signal, thereby enabling an operation of the vehicle only in a state where the carrier of the fob key secures a predetermined visual distance from the vehicle, and more definitely preventing a third party from breaking into the vehicle through RF bi-directional authentication.
摘要翻译：根据本发明的用于防止用于车辆的智能钥匙系统的中继攻击的方法通过使用包括在响应信号中的RSSI和当前电压电平来精确地计算SMK单元和Fob键之间的电流间隔距离当用户携带的FOB键接收从安装在车辆中的SMK单元施加的信号，然后将具有至少两种信息的响应信号发送到SMK单元时，对应答信号进行解码处理，并且检测应用的询问信号从安装在车辆上的SMK单元和包含在响应信号中的噪声信号，从而能够使车辆的运转仅在载波键的载体与车辆保持预定的视距的状态下进行，并且更可靠地防止第三方通过RF双向认证入侵车辆。

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