Cannot create DESFire EV1 aplication with AES key

Forum / MIFARE SDK / Cannot create DESFire EV1 aplication with AES key

Tagged: ,

  • 21. June 2020 at 12:31
    Hi Taplink Support,

    Thank you for your info! However we can read the key info settings anymore in the TagInfo andoid app after updating the bit for "free directory list access without master key" to zero in the ChangeKeySettings command. See attached files for details.

    Thanks
    Attachments:
    You must be logged in to view attached files.

    + 0  |  - 0

    Re: Cannot create DESFire EV1 aplication with AES key

    22. June 2020 at 10:33
    Hi Daniel,

    The bit “free directory…” affects the command for reading all AID on the card. If you want to forbid reading the key settings, you must clear “Configuration changeable”. I tested it with a NXP tool:



    A test with TagInfo confirms it:



    The TapLinx team
    Attachments:
    You must be logged in to view attached files.

    + 0  |  - 0

    Re: Cannot create DESFire EV1 aplication with AES key

    22. June 2020 at 10:54
    Thanks! But my issue is the Crypto mode show incorrect and I want to read key settings from TagInfo as well. Tt must show as AES after changing key from 3DES to AES. Can you try to change the PICC key from 3DES to AES and read the key settings in the TagInfo app for Desfire EV1 card? //It still shows as DES key type after changed to AES. It works well for Desfire EV2.
    + 0  |  - 0

    Re: Cannot create DESFire EV1 aplication with AES key

    25. June 2020 at 9:17
    Hi Daniel,

    This is a bug in TagInfo. I have already notified the development team.

    The TapLinx team

    + 0  |  - 0
Viewing 4 posts - 16 through 19 (of 19 total)

You must be logged in to reply to this topic.