I have a project open where an authentication tag must be used, but firstly I need to know how many Keys can be stored in the selected Tag.
I checked the datasheet of MIFARE PLUS X tag ( 4KBytes ) and it said that it can use 2 AES 128-bit keys per sector ( 80 sectors total).
Then the maximum amount of different keys in a MPLUS tag is 160 ?
Also as I concern this keys are used to unlock the sectors, not to apply the 3-pass-authentication protocol.
Could I switch the 3-pass key to one of this sector keys or it is fixed ?
Thanks in advance,