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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.! `9 @5 N4 q' o- T3 k8 p
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。; _8 a7 k" C* t8 Z6 T% a8 C5 N
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.; G0 f0 G0 p* X) G; V+ Z, i$ e
https://www.thatcham.org/relay-attack/
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0 s5 c: S, M0 ^5 `2 ?, J2 CRelay 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.6 l" M- d7 j, |% k5 x1 q8 v2 j/ Q) s
7 S! D r3 q4 n0 R" N0 NOperating 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.# Y' Z B& r5 \4 a- h$ l/ r
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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.; Z4 j& |" C" K2 z. r$ L
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