---
name: "mfoc"
section: "1"
platform: "linux"
package: "mfoc"
version: "0.10.7+38+gba072f1-2"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/mfoc"
---

# mfoc(1)

MIFARE Classic offline cracker

## NAME

mfoc - MIFARE Classic offline cracker

## SYNOPSIS

**mfoc** \[ **-h** \] \[ **-k** *KEY* \]... \[ **-O** *FILE* \] \[ **-P** *NUM* \] \[ **-T** *NUM* \]

## DESCRIPTION

This manual page documents briefly the **mfoc** command.

**mfoc** is a program that cracks the encryption of a MIFARE Classic chip and dumps the chip's keys and decrypted memory contents to a file. To run it you need to have access to an NFC reader and, of course, a card equipped with a MIFARE Classic chip.

## OPTIONS

A summary of options is included below.

- **-h**

  Show summary of options.

- **-k** *KEY*

  Initially try KEY in addition to the default keys.

- **-O** *FILE*

  Dump card contents to FILE.

- **-P** *NUM*

  Probe each sector up to NUM times.  Default is 20.

- **-T** *NUM*

  Set half the range for a possible distance tolerance to NUM.  Default is 20 (for a total range of 40).

## AUTHOR

**mfoc** was written by Norbert Szetei and Pavol Luptak with contributions by others.

This manual page was written by Thomas Hood \<jdthood@gmail.com\>. MIFARE is a trade mark of NXP bv, Netherlands.