B4R Question MFRC522 Authenticate Key fail

[tzfpg]

Hi,

I have a Mifare card with authenticate key protect. When I read card, I facing the problem of MFRC522 Authenticate Key fail.
Below is my code:

If rfid1.IsMifare Then
        Dim authenticate_key() As Byte  = JoinBytes(Array(Array As Byte(0x8D,0x6E,0x14,0xB5,0xEC,0xA6)))
        If rfid1.MifareAuthenticate2(1,authenticate_key,True) = False Then        
            Log("Failed to authenticate")
            Return
        End If
End If

Error Log:

 Failed to authenticate

Please help me. Thank you.

 

[Erel]

Why are you using JoinBytes here?

It should be:

Dim authenticate_key() As Byte = Array As Byte(0x8D,0x6E,0x14,0xB5,0xEC,0xA6)

Are you sure that the key is correct?

 

[tzfpg]

Its work
Thanl you