Reply To: How to change Keys A/B in Mifare Classic ?

Forum MIFARE and NFC Reader IC`s How to change Keys A/B in Mifare Classic ? Reply To: How to change Keys A/B in Mifare Classic ?

Re: How to change Keys A/B in Mifare Classic ?

1. April 2020 at 12:07
Hi Saimi,

To change a key you simply write the data to the sector trailer. But be careful! I recommend to read the block, change the six key bytes and write the block back. You should re-authenticate to the sector after changing the key bytes.

The TapLinx team

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