|
本帖最后由 MaverickZ 于 2022-1-14 23:42 编辑 / V, U# j2 N! K# T, _
; D+ L- _( l# ?, N3 A
; j; {7 _( Z5 P. q# J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.
, a* M2 Z1 Q. r ~: V8 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。# T+ k! ]: N2 [. V& t- k
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.5 s$ h) [( c9 `+ V
https://www.thatcham.org/relay-attack/
, ]; r7 a( }9 q! B7 tWhat is Relay Theft? w+ b! i1 {! |* q' q& V
- o) D9 u+ {5 V# S+ P2 T
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.4 t) M8 t8 d* g, s* E
" ?/ w# L3 u/ R0 Q+ J$ l
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.- k& s1 y: p/ V* |2 |3 z# Q
/ I0 i5 x/ M% Z) i) O
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.! v( U" r( k5 Y$ `
% F3 I( K0 @8 G
|
|