MFKey Help
I’m trying to figure out what I’m doing wrong with MFKey on my own MIFARE Classic 1K fob.
Flipper currently shows:
Keys Found: 30/32
Sectors Read: 15/16
I used Extract MF Keys from the saved NFC fob and presented the Flipper to the reader. I then ran the MFKey app. It processes the captured nonces normally, but every time it finishes it says:
Keys added to user dict: 0
When I process the nonces through the mobile app, I get multiple results for Sector 14 Key A, but they all say Not found. It also calculates Sector 0 Key A as A0A1A2A3A4A5, but that key is already in both the Flipper dictionary and my user dictionary, so it shows as a duplicate.
I’ve tried collecting fresh nonces and running MFKey again, including runs showing 3/3 items to crack, but I still end up with 0 new keys.
Am I misunderstanding the nonce collection process, or is there a reason MFKey would consistently fail to recover the last 2 keys/last unread sector? Is there anything in these results that indicates what I should be checking next?