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Configuring NTAG 424 DNA with Encrypted-Part and CMAC-Part

Question asked by Manuel Mertl on Jul 31, 2020
Latest reply on Aug 3, 2020 by Jonathan Iglesias

Problem:

How do i configure my NTAG 424 DNA using the TagXplorer and and my Macbook.

 

Goal:

I want to be able to configure my tags in a way like described in the section 4.4.4 (https://www.nxp.com/docs/en/application-note/AN12196.pdf )

 

https://ntag.nxp.com/424?e=EF963FF7828658A599F3041510671E88&c=94EED9EE65337086

 

So the goal is to have 2 parameters in my URL called "e" and "c" where "e" holds the encrypted version of the UID and the CTR and "c" would hold the cmac value.

 

Description:

Lets say i would like to use the following URL as base "https://ntag.nxp.com/424"

 

What configuration settings would i need to do in the following two screens? (using default keys is sufficent for my problem at that point)

 

 

and here:

 

 

might there also be other screens where i would have to configure things to be able to achieve my goal?

 

 

Jonathan Iglesias

 

 

Thank you

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