The company I work in switched to a new building, and we have those stupid doors with RFID cards on them. I’d be damned if I’m going walk with that I’m-working-in-hightech-company-card dangling of my belt. I wonder if there is a way for me to use my phone for credentials. I tried searching for it, and all I could find is ways for me to use the phone in order to copy the info from one card to another.

So is it somehow possible?

  • a new sad meOP
    1•11 months ago

    True… I confused the term, but this makes my question even more relevant. Since I have to put the card on the reader, I guess that it is an NFC card, rather than RFID. Which means that I should be able to duplicate the signal with my phone. I think.

    • 🧟‍♂️ Cadaver
      1•11 months ago

      Then again, what protocol does it use ? MiFare Classic then yes easy to duplicate.

      Other MiFares? It will be harder/impossible.

      • a new sad meOP
        1•11 months ago

        I scanned the card using an app “NFC tools” It sais that it is manufactured by NXP and the protocol is MiFares 1k. Guess this hould work.

          • a new sad meOP
            1•11 months ago

            Do you have a starting place? All I’ve found is instructions for copying NFC tags.

            • 🧟‍♂️ Cadaver
              1•11 months ago

              My phone with NFC died a year ago so… Take what I say with a pinch of salt.

              If I remember correctly you can use NFC tools pro to emulate a NFC tag. It doesn’t always work. I think it’s in the write section then emulate.

              There are however hardware limitations on emulation because of sector 0. Maybe try to copy your NFC card to a blank NFC tag (get it cheap on eBay) then if it succeeds go toward emulation.