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Thread: Bluetooth as an RFID

  1. #1
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    Lightbulb Bluetooth as an RFID

    Hello I've been thinking !

    All bluetooth enabled gadgets got it's own mac-adress and work within 10 meters. Therefor a car with the prober software should be able to detect a specific user when he's close to the car, simply by scanning after a certain bluetooth mac number (thinking bluetooth enabled phone). Why not make an application/plugin that does exactly that, so when it detects the correct user the car automaticly opens the doors and whatever one more whiches. When the computer detects that the bluetooth unit is gone then it locks the car etc.

    I would programme it if I had the skiils but I don't

  2. #2
    Variable Bitrate Saab9-5's Avatar
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    It may be harder to do or less obvious a security flaw, but the MAC address in a Bluetooth device can be spoofed just like any other NIC, wired or wireless. But an interesting application of Bluetooth nonetheless.

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    Actually Bluetooth is not secure at all, you'd have to do some really creative programming to make it secure, and even then....
    I have found you an argument; I am not obliged to find you an understanding.

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    Yes bluetooth can be hacked, spoofed and so on but consider this "no one" knows that you use bluetooth as an rfid and the "hi-hacker" don't know your mac address. One could also build in an EMP that blows if the car senses an hacking in progress.......

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    Quote Originally Posted by ShagNasty
    Yes bluetooth can be hacked, spoofed and so on but consider this "no one" knows that you use bluetooth as an rfid and the "hi-hacker" don't know your mac address. One could also build in an EMP that blows if the car senses an hacking in progress.......
    For some reason an EMP in a car full of electronics seems a bit scary of an idea.... Wouldn't want your ABS to forget how to work. Or your engine.
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  6. #6
    What can I say? I like serial. Curiosity's Avatar
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    Quote Originally Posted by ShagNasty
    Yes bluetooth can be hacked, spoofed and so on but consider this "no one" knows that you use bluetooth as an rfid and the "hi-hacker" don't know your mac address.
    Exactly. Until bluetooth is used for car alarms, no car thieves are going to be monitoring it as they spot someone walking up to a car and associating that paired re-connect somewhere in the area with the security. They will be too busy with the standard frequencies and codes. Anything unique is going to be better than the best mass market devices because that's the biggest target.

  7. #7
    Low Bitrate James141's Avatar
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    Just to note, I have seen some PC software that can do this for your desktop.

    You pair your phone whit it and when you walk away it locks your PC then when you come back it detects the phone and unlocks it. Works really well

    http://www.softpedia.com/get/Securit...ockItNow.shtml
    System:
    256Mb, PIII 533 on a Hyph01 PCI sized mobo (Lan/Sound/GFX)
    M1-ATX PSU
    250GB Hdd

    USB:
    Haicom GPS
    Belkin Wireless

    Case:
    Installed in an old NTL box, (best thing for it)

    Screen:
    LinITX 7"

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    The EMP was just a joke

    Your right that the idea being "unique" is it's best protection no one expects that bluetooth is the medium of choise. So if someone wants to steal my car they would proberly know me personaly.

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    Quote Originally Posted by ShagNasty
    The EMP was just a joke

    Your right that the idea being "unique" is it's best protection no one expects that bluetooth is the medium of choise. So if someone wants to steal my car they would proberly know me personaly.
    I'd like to think so, but seeing how hackers apparently have oodles of time on their hands, its only a matter of time before you park next to some armed geek who is tired of DOSing google. But like I said, you can always get creative with encoding technics.
    I have found you an argument; I am not obliged to find you an understanding.

  10. #10
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    Hi all,

    Although this wouldn't improve your system in a big way you could also run a few other tests when deciding if the bluetooth device is your phone (for example) as you said you would check the mac address but you could also refuse to do anything if the device name doesn't match something cryptic. This would give you a huge number of combinations and would be like keeping your password on your phone. (The one problem is if anyone scans for bt devices they also get your code and your mac so don't leave your phone visible to other devices)

    Hmm interesting idea though. I wouldn't like to see your carputer get a virus though

    Nick

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