Reply To: I cant change key

[nimaltd]

I have a problem. Please help me
I select app 000000 with no error.
I use DES and auth... with no error.
I have problem with making 24 byte data for change master key.
I dont use mifaresdk.
My old key is 00 00 00 00 00 00 00 00
8 byte for des .
How to create 24 byte data. I read datasheet but i dont undrestand .
Use crc , how can i make crc . I need c code. Please tell me completly.

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