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本帖最后由 MaverickZ 于 2022-1-14 23:42 编辑
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1 X" r4 h, `2 {6 `2 d, X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.8 \# [/ }3 Q2 M/ A( p; n( s0 E
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。
4 n/ n& q* Q: i0 M7 \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.) K1 t% @8 _; Y0 R) L: Y! l
https://www.thatcham.org/relay-attack/
0 f# d/ J$ v. \# DWhat is Relay Theft?0 o; ?/ F) f& K- L% s& y: o
7 C% Z+ s% s) fRelay 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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0 k8 o! G6 q4 q1 w! pOperating 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.! C: C" o, S7 p3 y% Z+ B' \" O
3 Y2 `. D* l6 B a: d7 E3 ^0 ]& LThe 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.+ K2 \1 a$ ]& Z# O g( ?1 ~
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