nfc-tools/mfoc
Mifare Classic Offline Cracker observed · 2026-08-28
Health v2 · maintenance only
32/100
- Activity 0
- Release rhythm 35
- Longevity 100
Flags: no_releases
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-03. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 4190
- days_rel: n/a
- days_push: 777
- n_releases_24m: 0
Adoption not part of the score
1423 stars · 283 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
MFOC is an open-source C implementation of the offline nested attack for recovering authentication keys from MIFARE Classic NFC cards. It requires at least one known key (default or user-provided) to recover keys from a target card.
Use cases
- recover keys from a MIFARE Classic card
- audit NFC card security with a nested attack
- find default or unknown keys on MIFARE tags
- test MIFARE Classic authentication offline
- penetration test RFID access cards
When to choose
- you need to recover MIFARE Classic keys offline using a known key
- you work with libnfc-compatible NFC readers on Linux/macOS
- you are doing security research or penetration testing of RFID systems
When to avoid
- you target MIFARE DESFire, Ultralight, or other non-Classic card types
- you need a GUI or automated scanning workflow
- you have no known key for the target card
Facets
cli-tool · maturity maintenance
security cryptography cli security hardware developer-tools windows cli mifare-classic nfc key-recovery nested-attack rfid linux macos
1 source
- readme: https://github.com/nfc-tools/mfoc · fetched 2026-08-28 · 8e19eb84d33b
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| nfc-tools/mfoc | main | 32 |
For agents
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem