Reply To: DESFire EV1 SelectApplication Command

Forum MIFARE general topics and applications DESFire EV1 SelectApplication Command Reply To: DESFire EV1 SelectApplication Command

Re: DESFire EV1 SelectApplication Command

8. March 2016 at 14:09
Hi Jan,

It depends on how you did create the application. If you create an application on a DESFire EV1, you also define the number of keys you want to use within your application.

After your card is selected, you are in the so called “PICC level”. An authentication is not required, unless you want to make commands at PICC level like change keys etc. In your case you can immediately select your application. An authentication is only required now if the permission of the file you want to read requires it. You do the authenticate with the key #1 (not with the master key). If you want to split the permissions very fine (key #1 for file 1, key #2 for file 2 etc.) you have to set the appropriate key number in the create application command.

Regards,
The MIFARE Team
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