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Keyless Entry System Hacked

Discussion in 'Prius, Hybrid, EV and Alt-Fuel News' started by takodon, Aug 30, 2007.

  1. takodon

    takodon New Member

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    The KeeLoq keyless entry system used by many car makers including
    Toyota, and apparently the one used for the Prius, has been hacked.

    Given an hour of access to any key from any car of a given model,
    and a day of computing, hackers can derive the base code.
    After that, any specific car of that model can be opened after
    a few seconds of wireless sniffing when the owner unlocks the car,
    a few seconds of computing and a few seconds to store the code
    to clone the keyfob.

    http://blog.wired.com/27bstroke6/2007/08/r...rchers-cra.html
     
    #1 takodon, Aug 30, 2007
  2. Wiyosaya

    Wiyosaya Member

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    <div class='quotetop'>QUOTE(takodon @ Aug 30 2007, 11:19 AM) [snapback]504299[/snapback]</div>
    I've heard that the encryption system is only 48-bit. Given that, this is not hard to imagine.
     
    #2 Wiyosaya, Aug 30, 2007
  3. Danny Hamilton

    Danny Hamilton Active Member

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    <div class='quotetop'>QUOTE(takodon @ Aug 30 2007, 10:19 AM) [snapback]504299[/snapback]</div>
    Here's your club. The dead horse is in the corner over there.
     
    #3 Danny Hamilton, Aug 30, 2007
  4. DougSlug

    DougSlug Member

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    That's a lot of "givens"--enough to make the risk infinitesimally low of it actually happening to you. Besides, someone's only going to bother doing this for high value cars, and I don't think the Prius is in that category.
     
    #4 DougSlug, Sep 1, 2007
  5. qbee42

    qbee42 My other car is a boat

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    This is old news, and was covered in another thread. It's of interest from an academic standpoint (I work with Microchip products), but has no practical implications due to the complexity of the process. It's still easier to steal a Prius by loading it onto a truck.

    Tom
     
    #5 qbee42, Sep 1, 2007
  6. aolm

    aolm Junior Member

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    <div class='quotetop'>QUOTE(DougSlug @ Sep 1 2007, 01:24 PM) [snapback]505464[/snapback]</div>
    Anyway to convert this into a fix for lost key fobs...at $250.00 ea. I would love to be able to hack the key.
     
    #6 aolm, Sep 1, 2007
  7. nerfer

    nerfer A young senior member

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    <div class='quotetop'>QUOTE(takodon @ Aug 30 2007, 10:19 AM) [snapback]504299[/snapback]</div>
    That will open the doors (if you have a hacker waiting patiently but inconspicuously beside your car, then locates your car after you park it again), but is it the same code that allows the car to start? Or does that depend if you have the Smart Key System or not?
     
    #7 nerfer, Sep 4, 2007
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