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Title:
METHOD FOR DETECTING RELAY ATTACK BASED ON COMMUNICATION CHANNELS AND DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/023095
Kind Code:
A1
Abstract:
A method for detecting a relay attack based on communication channels and a device. A vehicle-mounted device is connected to a first device by means of a first communication channel and a second communication channel. and the first communication channel and the second communication channel are independent to each other. The vehicle-mounted device receives a first identifier from the first device by means of the first communication channel, a communication channel identified by the first identifier being of the same type as the second communication channel. Then, the vehicle-mounted device determines a channel identifier of the second communication channel. Since the communication channel identified by the first identifier is of the same type as the second communication channel, when the channel identifier of the second communication channel is matched with the first identifier, it is indicated that the second communication channel and the communication channel identified by the first identifier are the same communication channel, and furthermore, it is indicated that there is no relay attack. On this basis, when the distance between the vehicle-mounted device and the first device is within a preset distance, the vehicle-mounted device can open a vehicle door in response to a service instruction.

Inventors:
WANG SISHAN (CN)
Application Number:
PCT/CN2020/105912
Publication Date:
February 11, 2021
Filing Date:
July 30, 2020
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
G07C9/00; H04W12/121
Foreign References:
CN110363899A2019-10-22
CN107968766A2018-04-27
CN106612130A2017-05-03
CN105899413A2016-08-24
CN108632745A2018-10-09
CN109318856A2019-02-12
US20150135268A12015-05-14
US20170190420A12017-07-06
Attorney, Agent or Firm:
CHINABLE IP (CN)
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