Forum Replies Created

  • Re: Reply To: Changing Offline_Crypto key with OfflineChange key

    24. November 2020 at 11:14     in reply to: Changing Offline_Crypto key with OfflineChange key

    Vojko Glaser
    Hi.

    I think I already found it. I had forceChangeByInternalLogic flag enabled for these keys by mistake.

    Thanks anyway.

    Best Regards,
    Vojko
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    Re: Reply To: Key incjection from AV2 to Desfire EV2

    20. October 2020 at 12:21     in reply to: Key incjection from AV2 to Desfire EV2

    Vojko Glaser
    Hi.

    Understood.
    Thank you very much for your help.

    BR,
    Vojko
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    Re: Reply To: Key incjection from AV2 to Desfire EV2

    19. October 2020 at 15:27     in reply to: Key incjection from AV2 to Desfire EV2

    Vojko Glaser
    Also, to be able to use ChangekeyEV2, EV2 authentication has to be performed, which can only be achieved by using crypto offline key on AV2 (AN3656 Use of MIFARE SAM AV2 for MIFARE DESFire EV2 extended features). But only PICC type keys can be injected onto PICC card from SAM.

    Br,
    Vojko
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    Re: Reply To: Key incjection from AV2 to Desfire EV2

    19. October 2020 at 15:18     in reply to: Key incjection from AV2 to Desfire EV2

    Vojko Glaser
    Hi.

    The AN5070 Using multiple application keysets in MIFARE DESFire EV2 and other documents clearly state that ChangeKeyEV2 command has to be used for changing keys in specific keysets, but if we are not mistaken AV2 does not have support for ChangeKeyEV2 command, at least not as the AV3. Or are we missing something.
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    Re: Reply To: Key incjection from AV2 to Desfire EV2

    19. October 2020 at 14:24     in reply to: Key incjection from AV2 to Desfire EV2

    Vojko Glaser
    Hi.

    Currently we are not interested in DAM keys, but we would like to write keys for multiple keysets. If I recall correctly, if we change/roll key set, we can not change it back, or not?

    Best regards,
    Vojko
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