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Canada declares Flipper Zero public enemy No. 1 in car-theft crackdown (arstechnica.com)

submitted 9 months ago by fne8w2ah@lemmy.world to c/technology@lemmy.world

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[–] fmstrat@lemmy.nowsci.com 183 points 9 months ago (15 children)

Read everyone, this is hype, and Canada is being dumb on this one.

The Flipper Zero is also incapable of defeating keyless systems that rely on rolling codes, a protection that's been in place since the 1990s that essentially transmits a different electronic key signal each time a key is pressed to lock or unlock a door.

Most of this reaction is due to staged videos on TikTok and politicians not understanding technology. Maybe they'll stop a few joyriding kids, but car thiefs aren't using F0s.

[–] Player2@lemm.ee 6 points 9 months ago (2 children)

With a jammer it's definitely possible to bypass rolling codes with Flipper, but it's only temporary and has limited usefulness

[–] KairuByte@lemmy.dbzer0.com 15 points 9 months ago (1 children)

That isn’t bypassing rolling codes, that’s capturing a single code while preventing it from reaching the car.

And once the code is used once, or the fob gets a new code to the car, the previously captured code is useless.

This isn’t the same thing as bypassing rolling codes.

[–] Player2@lemm.ee 1 points 9 months ago

Hmm, I don't know the precise terminology, I meant bypass as a way to temporarily get around the rolling code system without actually breaking the code itself. You're probably right though

[–] Takumidesh@lemmy.world 6 points 9 months ago (1 children)

It's pretty difficult, you need to get the rolling code from the fob, but you also need to jam it so it doesn't reach the car.

Then you have one opportunity to replay the code before the holder of the fob hits the button in range and rolls the code over.

So even if you manage to set that up that only gets you in the car, it doesn't get it started.

[–] Player2@lemm.ee 2 points 9 months ago

Yes correct, just pointing out that it is technically possible to get around the system

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