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Is Your GPS Naive?

Posted by CmdrTaco on from the what's-a-dikfor-anyway dept.

mi writes "Many GPS devices today will try to scan the FM bands for traffic advisories in the area to display on their screens. The signals, however, are neither authenticated nor encrypted, and one can — with commonly available electronics — construct a device to broadcast bogus advisories. Possible codes range from "bullfight ahead" to "terrorist attack"..."

3 of 291 comments (clear)

  1. Re:encryption cant help.. by WolfWithoutAClause · · Score: 3, Interesting

    It [i]could[/i] work if public key encryption was used for authentication, and the messages were timestamped and geolocated to prevent replay attacks.

    --

    -WolfWithoutAClause

    "Gravity is only a theory, not a fact!"
  2. Sounds familiar... by Tim+Browse · · Score: 4, Interesting

    ...I still think this is funnier.

  3. Re:Social hack - use "bullfight" for "speed trap". by NMerriam · · Score: 3, Interesting

    Why should I move over (at my expense!) for some jackass to be able to put me and everybody else at risk?


    Because you're putting everybody else at risk more than he is? Or was that a rhetorical question?

    Me, I'm personally happy to cruise along in the righthand lane in my non-aerodynamic vehicle that is lucky to go 75 downhill with a tailwind. For some reason going out of my way to break the law, annoy others, and risk my own safety for no reason whatsoever just never occurred to me.
    --
    Recursive: Adj. See Recursive.