Below is the command sequence that should be used in order to read/write DESFire cards. example attached here. DesFire Example.txt
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The online tool that helps to calculate the key (using encrypt mode = DES-CBC). Cipher block chaining (CBC) is a mode of operation for a block cipher (one in which a sequence of bits are encrypted as a single unit or block with a cipher key applied to the entire block). Cipher block chaining uses what is known as an initialization vector (IV) of a certain length.
httphttps://extranetemvlab.cryptomathic.comorg/descalc/index