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本帖最后由 MaverickZ 于 2022-1-14 23:42 编辑 ' X/ z" m9 R% p% P* c/ i
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, F, @' _% y+ Q4 ^2 I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.& m* r% y/ p2 w) q# R6 a
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。( e; Z. T" F; R7 F/ E$ _5 h5 u
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) ]& ~* z8 f' _/ W7 u
https://www.thatcham.org/relay-attack/3 f1 Q0 w; _7 }% h6 G
What is Relay Theft?
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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.
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0 \3 B2 `$ K0 n: X) jOperating 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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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.3 w! @, O4 ?# Q% U3 P' v) _
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