The invention provides a relay attack prevention method and a relay attack prevention device. According to the technical scheme provided by the invention, N pieces of motion data of the mobile terminal equipment from a parking moment to a second moment when the mobile terminal equipment is connected to the vehicle again or receives an instruction for indicating relay attack prevention operation are obtained, m pieces of motion data are obtained through a motion sensor in the mobile terminal equipment, then the moving track of the mobile terminal equipment is determined through the N pieces of motion data, and the distance difference value between the position where the mobile terminal equipment is located at the second moment and the vehicle stopping position is determined through the moving track, and if the distance difference value exceeds a preset safety threshold value, it is determined that relay attacks possibly exist. According to the method, the relay attack between the vehicle end and the mobile terminal equipment can be effectively prevented under the condition that accurate geographic position information does not need to be obtained.
本申请提供一种防中继攻击的方法和防中继攻击的装置。本申请提出的技术方案中,获得移动终端设备从停车时刻至再次连接到车辆或接收到用于指示进行防中继攻击操作的指令的第二时刻之间的N个运动数据,并且在该N个运动数据中,有M个运动数据是通过移动终端设备中的运动传感器获得的,然后通过N个运动数据确定移动终端设备的移动轨迹,并通过该移动轨迹确定移动终端设备在第二时刻时所在的位置与车辆停止位置之间的距离差值,如果该距离差值超过预设的安全阈值,则确定可能存在中继攻击。该方法可以在不需要获得精确的地理位置信息的情况下,也能有效地防止车辆端和移动终端设备之间的中继攻击。
Relay attack prevention method and relay attack prevention device
防中继攻击的方法和防中继攻击的装置
2022-10-18
Patent
Elektronische Ressource
Chinesisch
Relay attack prevention method, relay attack prevention system and vehicle
Europäisches Patentamt | 2020
|RELAY ATTACK PREVENTION METHOD AND RELAY ATTACK PREVENTION APPARATUS
Europäisches Patentamt | 2022
|