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NFC authentication using phones

I was all excited about using clients phones with NFC to authenticate them with the x series panels and then I tried it with a Samsung Nexus and found that the phone has a constantly changing UID.

Has anyone investigated how to authenticate a phone or have any knowledge of how I could take the UID and pass it to a third party authentication system that returns a constant value which I can use to figure out whos phone just touched the panel?

Googling it returns an overwhelming mixture of jibberish that makes my head hurt.


  • yuriyuri Posts: 861
    I have a lot of different NFC tags on my desk. They all have a unique UID, which never changes.
    I don't think your UID can change, it should a unique number, just like a MAC address..
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