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ELECTRONIC LOCK SYSTEM, ELECTRONIC LOCK CONTROL DEVICE, AND UNLOCK METHOD OF ELECTRONIC LOCK IN ELECTRONIC LOCK SYSTEM
To provide an unlock method of an electronic lock capable of preventing increase in cost as well as preventing relay attacks without malfunction.SOLUTION: An unlock method comprises: synchronizing a clock signal used for an electronic lock control section to unlock an electronic lock with a clock signal used for an electronic key; measuring delay time necessary to receive a response signal which is wirelessly transmitted by the electronic key in response to a measurement start signal wirelessly transmitted by the electronic key control part; and unlocking the electronic key only when the measured delay time is within predetermined time.SELECTED DRAWING: Figure 2
【課題】コスト高を抑え且つ誤動作することなくリレーアタックを防止することが可能な電子錠の解錠方法を提供する。【解決手段】電子錠の解錠を行う電子錠制御部で用いるクロック信号と、電子鍵で用いるクロック信号とを同期させ、電子錠制御部が、計測開始信号を無線送信してから、この計測開始信号の受信に応じて電子鍵が無線送信した応答信号を受信するまでに掛かる遅延時間を計測し、この計測した遅延時間が所定時間以内である場合にだけ電子錠を解除する。【選択図】図２
ELECTRONIC LOCK SYSTEM, ELECTRONIC LOCK CONTROL DEVICE, AND UNLOCK METHOD OF ELECTRONIC LOCK IN ELECTRONIC LOCK SYSTEM
To provide an unlock method of an electronic lock capable of preventing increase in cost as well as preventing relay attacks without malfunction.SOLUTION: An unlock method comprises: synchronizing a clock signal used for an electronic lock control section to unlock an electronic lock with a clock signal used for an electronic key; measuring delay time necessary to receive a response signal which is wirelessly transmitted by the electronic key in response to a measurement start signal wirelessly transmitted by the electronic key control part; and unlocking the electronic key only when the measured delay time is within predetermined time.SELECTED DRAWING: Figure 2
【課題】コスト高を抑え且つ誤動作することなくリレーアタックを防止することが可能な電子錠の解錠方法を提供する。【解決手段】電子錠の解錠を行う電子錠制御部で用いるクロック信号と、電子鍵で用いるクロック信号とを同期させ、電子錠制御部が、計測開始信号を無線送信してから、この計測開始信号の受信に応じて電子鍵が無線送信した応答信号を受信するまでに掛かる遅延時間を計測し、この計測した遅延時間が所定時間以内である場合にだけ電子錠を解除する。【選択図】図２
ELECTRONIC LOCK SYSTEM, ELECTRONIC LOCK CONTROL DEVICE, AND UNLOCK METHOD OF ELECTRONIC LOCK IN ELECTRONIC LOCK SYSTEM
電子錠システム、電子錠制御装置、電子錠システムにおける電子錠の解錠方法
UEHARA TERUAKI (author)
2019-05-30
Patent
Electronic Resource
Japanese
| European Patent Office | 2020
| European Patent Office | 2020
| European Patent Office | 2021
| European Patent Office | 2020