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本帖最后由 MaverickZ 于 2022-1-14 23:42 编辑
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7 W# S2 a% j* u* k+ z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.
% ?% i+ V$ X P$ {! x( ]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。
! z% q/ Z3 k9 C# I+ s, _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.& q; \0 D% f/ T: }3 e1 J
https://www.thatcham.org/relay-attack/
; j: _# p8 j, U* p' {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. {# ]2 o! D8 t2 W9 q- @
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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.+ r1 y5 p3 E" N, J" D
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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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