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Door unlocking with NFC on iOS and Android smartphones; Studying UID of NFC chip

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I got here throughout this dialogue Get Static NFC Tag Id with HCE mode and I’ve some questions on how NFC expertise works in card emulation mode on smartphones, significantly in the case of unlocking doorways.

How do iPhone units differ from Samsung units on this regard? The cellphone fashions I’m largely enthusiastic about are iPhone 13, Samsung Galaxy S21 and Samsung Galaxy A32.

  1. Does an NFC-enabled smartphone want an software as a way to emulate a card that opens a door?
  2. Is the UID of the safe ingredient of the NFC chip within the cellphone static or dynamic?
  3. When utilizing an software that emulates a card, is the UID learn by the reader an UID particular for that card or is it the identical because the UID of the NFC chip within the smartphone?
  4. If “the machine generates a brand new random UID each time it’s turned on” does that imply that we are able to emulate multiple card with the identical UID?
  5. Can a smartphone copy the content material of a tag (key) after which emulate it?
  6. What safety measures should be added to a door-unlocking system counting on the UID of an NFC chip?

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