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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.. U2 V/ a# S3 O$ L, D/ |
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。
" X- e( n5 c/ v1 v. ]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.( `+ h- Y5 q3 j+ y
https://www.thatcham.org/relay-attack/
2 L5 f4 t- w; M# t, _8 T0 HWhat is Relay Theft?
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/ ^2 t/ P8 K8 {6 h) h0 L: RRelay 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 N' P+ G$ |/ A" C0 x
4 q3 a- }' m) DOperating 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.1 u9 R2 X, }3 M; \7 l$ U
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