Title:
RELAY ATTACK DETERMINATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/111740
Kind Code:
A1
Abstract:
An intensity measurement unit 38 of this relay attack determination device is provided to a portable machine 3, and measures reception intensities of request signals S1, S2, each for multiple times, received from an on-vehicle machine 1. A comparison unit 44 compares the request signals S1, S2 with each other by using average values V1, V2 of the reception intensities measured by the intensity measurement unit 38. A variation calculation unit 42 calculates variation in the reception intensities measured multiple times by the intensity measurement unit 38 for the request signal S2. The comparison unit 44 determines a relay attack irrespective of the result of the comparison if variation in the reception intensities in the request signal S2 exceeds a threshold value TH1 indicating a communication abnormality.
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Inventors:
MORI YUUKI (JP)
Application Number:
PCT/JP2020/038722
Publication Date:
June 10, 2021
Filing Date:
October 14, 2020
Export Citation:
Assignee:
MARELLI CORP (JP)
International Classes:
E05B49/00; B60R25/24; H04B1/59; H04B17/318; H04Q9/00
Domestic Patent References:
| WO2018186075A1 | 2018-10-11 | |||
| WO2018070219A1 | 2018-04-19 | |||
| WO2019193866A1 | 2019-10-10 |
Foreign References:
| JP2019041348A | 2019-03-14 | |||
| JP2019105026A | 2019-06-27 | |||
| JP2019083436A | 2019-05-30 | |||
| US20160117877A1 | 2016-04-28 |
Attorney, Agent or Firm:
TAKEHARA Naohiko et al. (JP)
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