Canada to ban the Flipper Zero to stop surge in car thefts::The Canadian government plans to ban the Flipper Zero and similar devices after tagging them as tools thieves can use to steal cars.

    • twack@lemmy.world
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      5 months ago

      Isn’t that because it can desync the actual keyfob?

      Nvm… Clicked the link. That’s exactly why you shouldn’t do that.

      • Buddahriffic@lemmy.world
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        5 months ago

        Ah, so the cars still have shitty security implementations, only now it’s in the direction of “car needs service if someone tries to playback a previous signal”.

        Though how does it work when you hit the button while out of range of the car?

        It should be each fob has a private key that is used to generate a cryptographic hash of a random challenge string. Or hell, even give a rolling code a sequence number so they the car and fob can resync if necessary (I don’t think this would break the security, since the sequence could be started at a number other than 0).