Access Denied deleting DESFire apps w/ Master Key settings of 0x0F

[Tyler F]

Hello,

I'm able to create applications on a DESFire EV1 card, but not delete them, despite the permissions ostensibly being correct. Any thoughts on what I could be doing wrong?

Regards,

Tyler

[Romain Tartière]

Hello

On Tue, May 19, 2015 at 01:44:14PM -0700, Tyler F wrote:
> I'm able to create applications on a DESFire EV1 card, but not delete them,
> despite the permissions ostensibly being correct. Any thoughts on what I
> could be doing wrong?

Can you please provide a minimal example showing the problem ?

Thanks!

--
Romain Tartière <rom...@blogreen.org> http://romain.blogreen.org/
pgp: 8234 9A78 E7C0 B807 0B59 80FF BA4D 1D95 5112 336F (ID: 0x5112336F)
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[Tyler F]

On Tuesday, May 19, 2015 at 5:03:06 PM UTC-4, Romain Tartière wrote:

Hello

On Tue, May 19, 2015 at 01:44:14PM -0700, Tyler F wrote:
> I'm able to create applications on a DESFire EV1 card, but not delete them,
> despite the permissions ostensibly being correct. Any thoughts on what I
> could be doing wrong?

Can you please provide a minimal example showing the problem ?

Thanks!

--

The main part is just this:

int

app_delete(FreefareTag tag, MifareDESFireAID aid) {

    int res;

    res = mifare_desfire_select_application(tag, NULL);

    res = mifare_desfire_delete_application(tag, aid);

    if (res < 0) {

        warn ("Couldn't delete the application");

    } else {

        printf ("Success!\n");

    }

    return res;

}

The init/open/connect sequence is ripped right from another example, and the following works fine:

int

apps_list(FreefareTag tag)

{

    MifareDESFireAID *aids = NULL;

    size_t count;

    int res;

    res = mifare_desfire_get_application_ids(tag, &aids, &count);

    if (res < 0) {

        warn ("Can't retrieve tag AIDs");

        return res;

    }

    printf("Applications: %d\n", count);

    for(int i = 0; aids[i]; i++) {

        printf("[%d] %#08x\n", i, mifare_desfire_aid_get_aid(aids[i]));

    }

    mifare_desfire_free_application_ids(aids);

    return 0;

}

[Tyler F]

Maybe it's just a weird card?

- Tyler