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nfcmifare

How to get MIFARE access condition in Android

The way I do it is to read the data from block 3 and select the proper bytes from the result to get the access condition (e.g.:FF 07 80 69)

In this way, if I don't have keyA or keyB, I can not get the data from block 3.

Is there another way to get the access condition?

Solution

  • No, the only way to read any of the blocks of MIFARE Classic is to first authenticate with Key A or Key B. There is no shortcut.