Master key from AES mode to Native DES (after Format card)

Forum / MIFARE SmartCard IC`s / Master key from AES mode to Native DES (after Format card)

  • 19. May 2018 at 14:18

    André Bertrand
    Hello
    I want to change the master key which is in AES to put it back in native mode.
    After correct authentication in AES, I tried all versions of ChangeKey but without success can you describe me the different phase and parameters for this.

    The master key AES is 16 x 0x00 and the new native is the same.
    Thank you in advance.
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    Re: Master key from AES mode to Native DES (after Format card)

    22. May 2018 at 10:54

    TapLinx Support
    Hi André,

    You must use the change key command and change also the cipher from AES to 2K3DES. I recommend reading the application note:
    AN0945 MIFARE DESFire EV1 – Features and Hints. Here you will find calculated examples of change key.

    The TapLinx team
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