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    USB Stick NFC Ring Logging Into Desktop by Nairod 785

    Ideas for using NFC Rings
    arduino keyboard pn532 beetle elechouse
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    • Lafunamor
      Lafunamor Community Helper last edited by Lafunamor

      @Lokki said:

      Can't read the code back out of the arduino though can you?

      if you read out the arduino memory it's possible. Not sure how difficult it would be... But I don't think this is a problem.

      Edit:
      It is possible to get the assembly code back. so you could quite easy read the password out.
      http://forum.arduino.cc/index.php/topic,3566.0.html

      But still it would need access to the device....

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      • Lokki
        Lokki Community Helper last edited by

        Good call, didn't know you could do that. You don't get assembly though, you get machine code. It'd be a fair effort to trawl through it for a random password.
        Doable, but a fair effort. I think at that point you're going to be compromised no matter what they have to do.

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        • M
          MarkGabb last edited by

          is possible to store the password on the ring and have the reader read the text from the ring and pass it on?

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          • Lafunamor
            Lafunamor Community Helper last edited by

            sure it would be possible but then everyone that is able to read your ring would have your password

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            • johnyma22
              johnyma22 NFC Ring Team last edited by

              http://mclear.co.uk/2014/01/14/why-nfc-keyboard-emulators-readers-are-a-bad-idea/ -- Don't emulate keyboard input!

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              • Lafunamor
                Lafunamor Community Helper last edited by

                That's why my reader sits behind my monitor so I have to reach around and I don't trigger it by accident.

                I have a weird issue with my leonardo. If I have it connected continuously to my computer (Win8.1) it will disconnect and reconnect after a while (hardware removed and hardware installed sounds).
                Anybody an idea what the problem could be? Or is this "normal" behavior?

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                • Lokki
                  Lokki Community Helper last edited by

                  I wonder if windows is scanning for new hardware and knocking it out?

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                  • Lafunamor
                    Lafunamor Community Helper last edited by

                    I thought it could be because the internal timer is at it's limit and then re initializing the hardware but it does not happen every time

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                    • Lokki
                      Lokki Community Helper last edited by

                      It could be that the usb hub is being over-loaded too.

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                      • Lafunamor
                        Lafunamor Community Helper last edited by

                        yeah it seems to be an problem with that USB port.

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