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TapLinx Package Key & DESFire EV3 Default PICC Key Clarification

I recently procured MIFARE DESFire EV3 cards and would like to confirm whether they use a known factory-default PICC master key (e.g. all-zero AES/2K3DES/DES), or if the key is card-vendor dependent.

My intention is to verify this via the TapLinx Android sample application by authenticating to the PICC (KeyNo 0). However, to build the sample APK, a valid TapLinx packageKey must be defined in the code:

static final String packageKey = "";

Before proceeding with building the test app, could you please confirm:

1. Whether there is a documented default PICC master key for DESFire EV3 cards, and

2. How to generate or obtain the appropriate TapLinx packageKey for my application.

Thank you for your guidance.

Code examplesExample codeGetting StartedLicensingRe: TapLinx Package Key & DESFire EV3 Default PICC Key Clarification

Hello,

Thank you for your interest in our products. As you may already know, MIFARE DESFire is a restricted product and requires to have an NDA in order to get further information. My recommendation is to please contact any of our Distributors.

Answering your second question, please take a look at the TapLinx site: TapLinx SDK for MIFARE, NTAG, ICODE and UCODE | NXP Semiconductors In the Documentation section, you will find the relevant User Guide for your development platform. Each document explains how to create your own user and register your application.