MIFARE Classic Dump Tool (PN532 + Python)

This project provides a Python script for dumping MIFARE Classic 1K and 4K NFC cards using a PN532 reader over UART.
It authenticates each sector using Key A (and optionally Key B, if added later) and produces a full .mfd/.dump-style binary file compatible with common NFC tools.

---

• Reads all blocks of a MIFARE Classic 1K or 4K card
• Supports per-sector Key A loaded from a text file
• Automatically determines card layout (1K or 4K) based on the highest sector index
• Falls back to default key FFFFFFFFFFFF if no key is provided
• Produces a raw dump (card_dump.mfd) compatible with MFOC/MFCUK-style tools
• Works with PN532 in HCU mode, using a USB to TTL.

---

---

🛠️ Usage

• This repo comes with 3 python files.
• Dump_MifareClassic1K.py: The main script to dump the card (For MC1K).
• Dump_MifareClassic4K.py: The main script to dump the card (For MC4K).
• NFC-Dump_Analyze.py: A helper script to analyze the dumped .mfd file.

To use the scripts, run the following command in your terminal:

python Dump_MifareClassic1K.py

To analyze your dumped file, run:

python ./NFC-Dump_Analyze.py ./card_dump.mfd

---

📦 Requirements

• Python 3.7+
• PN532 board configured for HCU
• adafruit-circuitpython-pn532
• pyserial

Install dependencies:

pip install adafruit-circuitpython-pn532 pyserial

To read your dumps, you can check zhovner's MFDRead tool: https://github.com/zhovner/mfdread