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?

  • CryptoKitten@sh.itjust.works
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    1 year ago

    There may be phones that allow you to do this and there are also smart rings you may be able to use by cloning the card with a proxmark 3, a flipper 0 or other similar devices.

    • a new sad me@lemmy.worldOP
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      1 year ago

      I see that my phone should support encoding NFC tags. I’ll order a cheep ring and see if it works. Thanks.

      I’m still curious though, why cannot phones produce that signals on their own? Isn’t this what they do with payment apps?

        • a new sad me@lemmy.worldOP
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          1 year 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@lemmy.one
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            1 year 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 me@lemmy.worldOP
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              1 year 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.

                  • 🧟‍♂️ Cadaver@lemmy.one
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                    1 year 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.