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本帖最后由 MaverickZ 于 2022-1-14 23:42 编辑 8 G# X9 J* S# }+ r
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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 r) p# D9 O$ S; u I! Y# ?$ y0 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。
Y7 M8 A! a8 G5 W$ K/ w4 W: I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.( r7 [9 E4 y5 Z G
https://www.thatcham.org/relay-attack/1 [) d; P& N; V% K
What is Relay Theft?
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' k& `% x3 M5 O6 e1 d" lRelay 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.8 x b3 N2 J& s- j! M/ O+ Y6 C
* A' W4 J2 Z" X) z9 x8 tOperating 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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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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