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本帖最后由 MaverickZ 于 2022-1-14 23:42 编辑
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( ^0 i9 z; D `6 h+ Q& |6 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.+ F$ _/ m8 z+ F
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。6 A- S1 b- t5 w' f N# k6 ~
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.3 f i% G7 |. h0 v% Q$ E# u
https://www.thatcham.org/relay-attack/5 T6 r& T9 e# ~+ K
What is Relay Theft?7 d$ _: v7 { J3 W" Q1 Q& k9 ]
- ?' D+ {/ c# [) xRelay 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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# C5 a4 ] h7 P% q7 ~' xOperating 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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) K* d9 v2 w) K. ?* vThe 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.
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