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本帖最后由 MaverickZ 于 2022-1-14 23:42 编辑
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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.% r. W! B7 h0 R/ i% m
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。
* n, b, c" C9 x1 Q' O. C/ a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.
) V5 l* W* C3 I* }6 vhttps://www.thatcham.org/relay-attack/
( y$ {; @0 Q" S5 a: DWhat 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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- }; {0 h* g0 {, g9 @) B5 t, HOperating 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.! @ ^9 ?! M* c' P0 E
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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.0 d: O8 G0 K- Z" V
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