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本帖最后由 MaverickZ 于 2022-1-14 23:42 编辑 , b7 K- m- \- j/ a, y4 |) f
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5 L$ @0 J+ Q, x, b+ \- ^) v9 j* U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.
, L: w9 B- I$ J& H- N" h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。+ g- j: }2 M2 X% R
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.
" R* v4 {! Q8 v/ i0 y. \https://www.thatcham.org/relay-attack/( T7 P9 F1 b' u
What is Relay Theft?' h. H, U9 X: z( ?" z' |* N- o6 d
- [) z& X& @1 NRelay 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. z/ u& {$ @- q- h+ H0 |6 r! u, o5 \
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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.
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5 }$ v# _9 _. X" t1 ]) K% oThe 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.3 c7 T- h8 s3 Q; K& W
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