# Install mfoc with Homebrew, apt, Nix, pacman, zypper Implementation of 'offline nested' attack by Nethemba. Version 0.10.7 via Homebrew; verified 2026-05-14. ## Install ```sh sudo av install brew:mfoc ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install mfoc ``` Evidence: local Homebrew formula metadata ### Linux - Debian apt (92%): ```sh sudo apt install mfoc ``` Evidence: Debian stable package indexes: mfoc from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz - Nix (92%): ```sh nix profile install nixpkgs#mfoc ``` Evidence: nixpkgs package indexes: pkgs/by-name/mf/mfoc/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - pacman (92%): ```sh sudo pacman -S mfoc ``` Evidence: Arch Linux sync databases: mfoc from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz - zypper (92%): ```sh sudo zypper install mfoc ``` Evidence: openSUSE Tumbleweed package metadata: mfoc from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst ## Package facts - **Package key:** brew:mfoc - **Package manager:** Homebrew - **Package manager page:** - **Version:** 0.10.7 - **Source summary:** Implementation of 'offline nested' attack by Nethemba - **Homepage:** - **Repository:** - **Upstream docs:** - **License:** GPL-2.0-or-later AND BSD-2-Clause - **Source archive:** - **Last updated:** 2026-05-14T17:23:49-04:00 - **Generated:** 2026-07-09T07:20:21+00:00 ## Executables - mfoc (cli) - mfoc (alias) ## Dependencies - libnfc - libusb-compat ## Build dependencies - autoconf - automake - pkgconf ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_big_sur, arm64_linux, arm64_monterey, arm64_sequoia, arm64_sonoma, arm64_tahoe, arm64_ventura, big_sur, monterey, sonoma, ventura, x86_64_linux ## Freshness - Page generated: 2026-07-09 - Package-manager version: 0.10.7 - Package-manager updated: 2026-05-14 - Local data: ok - Upstream repository: https://github.com/nfc-tools/mfoc - Upstream latest detected: mfoc-0.10.7 (current) ## Project history and usage MFOC, the Mifare Classic Offline Cracker, is an open-source implementation of Nethemba's offline nested attack against MIFARE Classic cards. The nfc-tools README states that it recovers authentication keys from MIFARE Classic cards when a default or user-supplied key is known. The AUTHORS file names the Nethemba Core Team, with Norbert Szetei as main coder and Pavol Luptak as project leader, minor coder, tester, and bug reporter. ### Project history The project traces back to Nethemba's 2009 public release of an offline nested attack implementation for Mac OS X and Linux. The nfc-tools changelog records the import of MFOC 0.08 from nethemba.com into the nfc-tools repository on September 13, 2010, followed by maintenance work to track libnfc APIs, add packaging, add a manpage, support newer MIFARE Classic UID cases, and clean up the C code through 2013. ### How it is used MFOC's practical role is narrower than broad NFC libraries: it is a command-line recovery and audit tool for MIFARE Classic deployments, generally used with libnfc-supported readers and known-key attack workflows. In package managers it commonly appears beside MFCUK and libnfc as part of the NFC/RFID security-research toolkit, with MFCUK covering the DarkSide-oriented path and MFOC covering the offline nested attack path. ### Sources - - - - - - - ## Security Notes narrow executable package without higher-risk signals. - **Geiger risk:** green / low - narrow executable package without higher-risk signals ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** mfoc - **Version Scheme:** 0 - **Revision:** 2 - **Head Version:** HEAD - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** head, stable ## Other Package-Manager Records - Debian apt - mfoc - 0.10.7+git20180724-2: normalized package name match | Debian stable package indexes: mfoc from https://deb.debian.org/debian/dists/stable/main/binary-amd64/Packages.xz | MIFARE Classic offline cracker | https://github.com/nfc-tools/mfoc - Nix - mfoc: normalized package name match | nixpkgs package indexes: pkgs/by-name/mf/mfoc/package.nix from https://api.github.com/repos/NixOS/nixpkgs/git/trees/master?recursive=1 - Ubuntu apt - mfoc - 0.10.7+git20180724-2: normalized package name match | Ubuntu 24.04 LTS package indexes: mfoc from https://archive.ubuntu.com/ubuntu/dists/noble/universe/binary-amd64/Packages.gz | MIFARE Classic offline cracker | https://github.com/nfc-tools/mfoc - pacman - mfoc - 0.10.7+38+gba072f1-2: normalized package name match | Arch Linux sync databases: mfoc from https://geo.mirror.pkgbuild.com/extra/os/x86_64/extra.db.tar.gz | MiFare Classic Universal toolKit | http://nfc-tools.org/ - zypper - mfoc - 0.10.7+git38-1.23: normalized package name match | openSUSE Tumbleweed package metadata: mfoc from https://download.opensuse.org/tumbleweed/repo/oss/repodata/be8d3611d25469107f32075a1697e69ec57a2b850b42348a658cc671ad5ec2b50760d02c3e59524d50da9a11d5be799bdaffba2e166e8ca8858512e3c0bd665d-primary.xml.zst | Mifare Classic Offline Cracker: key recovery tool for MC cards | https://github.com/nfc-tools/mfoc ## Related links - [Source-control packages](https://www.automicvault.com/pkg/source-control-tools/) - Belongs to a source-control command family. - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Networking and protocol packages](https://www.automicvault.com/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata. - [Security and crypto packages](https://www.automicvault.com/pkg/security-crypto-tools/) - Matched security, identity, cryptography, password, signing, or certificate metadata. - [libnfc](https://www.automicvault.com/pkg/brew/libnfc/) - Runtime dependency declared by Homebrew. - [libusb-compat](https://www.automicvault.com/pkg/brew/libusb-compat/) - Runtime dependency declared by Homebrew. - [autoconf](https://www.automicvault.com/pkg/brew/autoconf/) - Build dependency declared by Homebrew. - [automake](https://www.automicvault.com/pkg/brew/automake/) - Build dependency declared by Homebrew. - [pkgconf](https://www.automicvault.com/pkg/brew/pkgconf/) - Build dependency declared by Homebrew. - [mfcuk](https://www.automicvault.com/pkg/brew/mfcuk/) - Shares av.db curated category or tags: cli, mifare, mifare-classic, nfc, nfc-rfid. - [mfterm](https://www.automicvault.com/pkg/brew/mfterm/) - Shares av.db curated category or tags: cli, mifare, mifare-classic, nfc, nfc-rfid. - [acme.sh](https://www.automicvault.com/pkg/brew/acme-sh/) - Shares av.db curated category or tags: cli, security. - [aescrypt](https://www.automicvault.com/pkg/brew/aescrypt/) - Shares av.db curated category or tags: cli, security. - [aespipe](https://www.automicvault.com/pkg/brew/aespipe/) - Shares av.db curated category or tags: cli, security. - [afflib](https://www.automicvault.com/pkg/brew/afflib/) - Shares av.db curated category or tags: cli, security. - [afl++](https://www.automicvault.com/pkg/brew/afl/) - Shares av.db curated category or tags: cli, security. - [age](https://www.automicvault.com/pkg/brew/age/) - Shares av.db curated category or tags: cli, security. - [libfreefare](https://www.automicvault.com/pkg/brew/libfreefare/) - Local package facts share a topical domain. Shared terms: classic, cli, compat, libnfc, libusb. ## Combined YAML source View the package source record on GitHub. [combined/mfoc.yml](https://github.com/automic-vault/db/blob/main/combined/mfoc.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - external package-manager database matches - cross-ecosystem install command graph