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APDU = Application Protocol Data Unit (nfc)

APDU = Application Protocol Data Unit (nfc)

Jun 19, 20251 min read

from APDU to NDEF Messages

selecting an Application (nfc)

  • done for at least PSA = Payment System Environment, maybe for other thngs too
  • for Select (nfc-command), you can do “0x40, 0x00” to select an Application (nfc) by AID = Application IDentifier (nfc)
    • you put the AID string (eg: “2PAY.SYS.DDF01”) as the payload of the select command

Graph View

  • from APDU to NDEF Messages
  • selecting an Application (nfc)

Backlinks

  • ISO-IEC 14443 - Identification cards – Contactless integrated circuit cards
  • NFC = Near Field Communication

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