|
|
本帖最后由 MaverickZ 于 2022-1-14 23:42 编辑 % \$ o' X- o3 J
: v R0 U5 L( K- Y; W2 h, P1 @& P2 W! g( T9 L* L" g
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. s2 F. R6 k8 e, S% R. g, W b
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。& U, c6 v2 Q6 d8 p! I, m% ?
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.& k& A6 S! c) k& t- H
https://www.thatcham.org/relay-attack/
9 u0 }& }, I; O0 F {3 I; |2 \& e" JWhat is Relay Theft?1 z$ n! \1 _6 [" j- @& U
: N; S! N# m$ u1 a
Relay 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.
0 W* g6 A7 @9 E; ?- f9 u6 F$ h5 ]
7 }* w" o/ }2 E0 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.$ I* F; s* R6 a
6 [# ^% Z' [- I! ZThe 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.& f9 h; t' ]* O! L# U
$ `( v! i4 l) W( E* W
|
|