Can anyone tell me why this isnt complete ********
On 15/07/2018 11:06, Dave Plowman (News) wrote:
In article ,
Andy Burns wrote:
Steve Walker wrote:
The car fobs that you press a button to operate use a rolling code
system to prevent the recording of a code as it is used and subsequent
playback.
I think that vulnerabilities in the rolling code system have been found
though.
Place a jammer near the car, so car doesn't receive properly, use a
device to capture code n from the remote, user notices car doesn't open,
presses button again, device captures code n+1, disable the jammer, play
back code n, car opens, thief keeps code n+1 for later use ...
But a lot more hassle than picking up a keyless entry code. Needs the key
holder to actually operate the system, before the code can be captured.
car and remote allow a 'window' of several rolling codes, so in practice
thief can capture n+2, n+3 etc codes ...
And getting into the car isn't going to help much anyway. You could do
that by smashing a window. You'd still need the correct key with security
chip to actually start the car.
Or use the programming port to do your own key.
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