RE: Digital Logic µFR NFC Card Reader - part 3: C++ Class to handle ISO14443 / APDU cards

Jan Cumps — Wed, 16 Dec 2020 16:42:42 GMT

The first meaningful conversations with an Infineon Security2Go card:

[View:/resized-image/__size/779x411/__key/commentfiles/f7d226abd59f475c9d224a79e3f0ec07-0767eb8b-0665-41c1-a410-7f9097afaf95/contentimage_5F00_193322.png:779:411]

This is where I wanted to get with the exercise: access to the card's application (yes: it runs software).

In this exercise, I start an application session, and get the card's ID back.

I've used the Android app and example software of my card reader before, to see such a conversation.

This is the first back-and forth from my OO design here.

In short:

recognise that the card supports the ISO14443_4 protocol and set it to that mode
ask to open an application session
the card responds with its ID (this is the state when I took the screen capture above)
close the session
card is back into "normal" smart card mode.