Reply To: CLRC663 Authentication Failed – 0x0201

[mifaresdk]

Hi NFCuser,

I cannot say anything to the NXP Reader Library, but you can program the CLRC663 directly via writing and reading the registers. To authenticate with a MIFARE key you have to do the following steps:

1. 1. Write the key (the default key is FFFFFFFFFFFF) into the Fifo (register 05),
   command: FF into 05,


2. command: FF into 05,
   
command: FF into 05,

command: FF into 05,

command: FF into 05,
command: FF into 05.

6. 2. Send the LoadKey
   command: 02 into 00.


7. 3. Maybe wait.


8. 4. Write the value 60 into Fifo,
   command: 60 into 05,
   command: 00 into 05.


9. 5. Write the first four bytes of UID into Fifo,
   command: UID0 into 05,
   command: UID1 into 05,
   command: UID2 into 05,
   command: UID3 into 05.


10. 6. Start MIFARE Authenticate
    command: 03 into 00.


11. 7. Maybe wait.


12. 8. Read error register
    command read 0A.


13. 9. Check length of reply
    command: read 04


14. 10. Read reply bytes (length previously read)
    command: read 05 x times (x is the length)

I hope it helps.
Kind regards,
The MIFARE Team

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