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本帖最后由 MaverickZ 于 2022-1-14 23:42 编辑 1 c- v( c. e9 w
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双向信号放大器, 放大汽车和钥匙的信号, 让车以为钥匙在车边.2 g6 S* p: W0 g9 Z
我现在是用faraday case钥匙包装钥匙, 回家把车钥匙扔那种铁皮的饼干盒里。: {% {! R: F$ j' _' v
我见过最搞笑的是买了宜家一种类似俄罗斯套娃的3层金属盒,把车钥匙放在最里面那个小盒子里, 实测屏蔽信号效果超一流.9 p8 U6 M3 a! Q. p6 t
https://www.thatcham.org/relay-attack/9 H/ r+ L* T4 e) m$ R& x s
What is Relay Theft?
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Relay theft exploits a vulnerability in passive keyless entry systems, which allow drivers to open and start their cars without removing the keyless fob from their pocket.
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Operating in pairs, one criminal holds a device up against the car door, amplifying the signal it broadcasts around the perimeter of the vehicle. Another stands near the front wall or porch of a home, with a device that relays the key’s signal back to his accomplice.
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4 N7 b5 g# G8 `6 D+ ^0 `The car is effectively fooled into believing that the owner is within a defined range (usually two metres) and is approaching the car with their key. The door opens, and the signal is relayed a second time, starting the engine. Once started, the engine will not restart without the key present.
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