Current command:
hf mf fchk --help
This is a improved checkkeys method speedwise. It checks MIFARE Classic tags sector keys against a dictionary file with keys usage: hf mf fchk [-h] [-k <hex>]... [--mini] [--1k] [--2k] [--4k] [--emu] [--dump] [--mem] [-f <fn>] options: -h, --help This help -k, --key <hex> Key specified as 12 hex symbols --mini MIFARE Classic Mini / S20 --1k MIFARE Classic 1k / S50 (default) --2k MIFARE Classic/Plus 2k --4k MIFARE Classic 4k / S70 --emu Fill simulator keys from found keys --dump Dump found keys to binary file --mem Use dictionary from flashmemory -f, --file <fn> filename of dictionary examples/notes: hf mf fchk --mini -k FFFFFFFFFFFF -> Key recovery against MIFARE Mini hf mf fchk --1k -k FFFFFFFFFFFF -> Key recovery against MIFARE Classic 1k hf mf fchk --2k -k FFFFFFFFFFFF -> Key recovery against MIFARE 2k hf mf fchk --4k -k FFFFFFFFFFFF -> Key recovery against MIFARE 4k hf mf fchk --1k -f mfc_default_keys.dic -> Target 1K using default dictionary file hf mf fchk --1k --emu -> Target 1K, write keys to emulator memory hf mf fchk --1k --dump -> Target 1K, write keys to file hf mf fchk --1k --mem -> Target 1K, use dictionary from flash memory