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本帖最后由 MaverickZ 于 2022-1-14 23:42 编辑
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+ B+ S# O m0 R, S; m3 b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.* z: Z5 z7 s. b Z3 L Y5 Z: @4 i
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 B+ q2 L( e6 G/ {1 }# w
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.
8 D+ _' B5 K' W( ?https://www.thatcham.org/relay-attack/
0 Y# R2 L8 k3 {7 s1 PWhat is Relay Theft?& w! l0 ^6 t. v% [
4 ]. P1 F: X# ?/ ~9 w+ j5 dRelay 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.9 a+ b3 {6 W& Q6 u( y
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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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