This is tools for interact with Mifare Classic cards via linux_libnfc-nci stack and using NXP chips Currently, implemented mifare keys bruter and NXP chip checker.
nxp-mfclassic-brute - tool for bruting mifare classic keys using NXP chips via linux_libnfc-nci.
Common usage:
nxp-mfclassic-brute <options>
Mandatory parameters:
-f/--keys_file <filepath> - use this file as keys dictionary
Options:
-b/--block <block_num> - brute <block_num> block
-s/--sector <sector_num> - brute first block of <sector_num> sector
Flags:
-h/--help - print this help message and exit
--keys_a - try all keys only as A key
--keys_b - try all keys only as B key
--keys_both - try all keys as both A and B key
Key dictionary must be LF (not CR or CRLF). Any line that starts with hex digit (0-9, A-F or a-f) is treated as a key. If line starts with other symbol, then it's ignored. Line with key can be 12 or 14 symbols long. If there is no suffix (12 symbols), key will be treated as A&B. If Key is 14 symbols, it must be suffixed with :A or :B, idicating the key that must be used only as A or B key. If it's suffixed with other symbols, key will be ignored.
If there is symbol other than hex digit inside key, program will exit.
Key dict example is inside example-keys.txt file
- Ability to stop bruter using Ctrl+C
- Dumper/Writer
Actually, I started to write those programs with desire to get mifare attacks (such as darkside or even mfkey32) having only android phone with NFC chip by NXP and now I haven't anything to say better then "I don't know". Maybe it's not possible with NXP chips at all. Maybe this is possible and there will be someone more experienced than me, who can implement those things. Maybe someday in future I will be experienced enough with NFC, Mifare, C programming and drivers to get something like this.
There is driver in libnfc, that uses linux_libnfc-nci to send bytes. But looks like any mifare tools, based on libnfc can't work with this driver - there is some differences in authentication commands between linux_libnfc-nci and libnfc, for example. Also, there is a number of functions that not implemented, and IDK how to make it work.