Mifare Plus X authentication response 0x06

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I'm trying to authenticate in Mifare Plus X card via AES key. Let me show all steps:

  1. Authenticate with key A in sector 1. Send first authentication command to MP: 70 02 40 00. Response: 907EAF3F73ADD8B212E63201727CE016BF, where 90 status code and the rest bytes are encrypted RndB
  2. Decrypting response and get RndB, rotate it to the left and get RndB'.
  3. Generate RndA, 16-byte length
  4. Encrypt RndA+RndB'
  5. Send second authentication command to MP: 72 + En(RndA+RndB'). Response: 06

Now I don't know what byte 0x06 means. Please, can somebody help me?

Thank you in advance!

mifare apdu
1 Answers

It means to fail authentication. It fails due to wrong card type or sam.

user_9502570
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