본 개시의 실시 예에 따른 방법은, 차량의 PKE(passive keyless entry) 시스템에서 릴레이/리플레이 신호를 구분하는 방법에 있어서, 제1 난수 및 제1 타임 스탬프 값을 포함하는 제1 신호를 생성하여 스마트키로 전송하는 과정; 상기 스마트키로부터 해시값 및 제2 타임 스탬프 값을 포함하는 제2 신호를 수신하는 과정; 제3 타임 스탬프 값을 생성하는 과정; 상기 제2 타임 스탬프 값과 상기 제1 타임 스탬프 값 간의 차이와 제1 임계값을 비교하는 과정; 및 상기 제2 타임 스탬프 값과 상기 제1 타임 스탬프 값 간의 차이가 상기 제1 임계값 이상인 경우, 상기 릴레이 신호가 발생한 것으로 판단하는 과정을 포함한다.

    A method of operating a passive keyless entry (PKE) system of a vehicle can include generating and transmitting to a smart key, a first signal including a first random number and a first timestamp value, receiving from the smart key, a second signal including a second hash value and a second timestamp value, generating a third timestamp value, comparing a first difference between the second timestamp value and the first timestamp value with a first threshold for determining whether a relay signal has occurred, comparing a second difference between the third timestamp value and the second timestamp value with a second threshold for determining whether a relay signal and/or a replay signal has occurred, and comparing a first hash value based on the first timestamp value with the second hash value to determine whether to allow access to and start up of the vehicle.


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    Title :

    PKE / Apparatus and Method for Distinguishing Relay/Replay Signal in Passive Keyless Entry System


    Additional title:

    PKE 시스템에서 릴레이/리플레이 신호를 구분하는 장치 및 방법


    Publication date :

    2025-05-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Korean


    Classification :

    IPC:    H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION , Übertragung digitaler Information, z.B. Telegrafieverkehr



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