: Check both std.keys and extended-std.keys .
: Do not use it to copy someone else's access card. Share public link
To give you a better guide, what are you trying to do with the tool? Read data? Change a card's ID? Also, do you know if the tag is a MIFARE Classic 1K or 4K ?
Because MIFARE Classic does not allow data reading without authentication, MCT must guess or provide the keys. Go to , select the default key files ( std.keys and extended.keys ), and place the target card against the phone's NFC sweet spot. The app will sequentially test these keys against both Key A and Key B slots for all sectors. Step 2: Saving the Dump
MIFARE Classic Tool is an open-source Android application designed as a low-level utility for reading, writing, and analyzing MIFARE® Classic RFID tags. It is built specifically for users who have at least a basic familiarity with the MIFARE Classic technology and a fundamental understanding of the hexadecimal number system, as all data input and output is in this format. The tool is explicitly not a "hacking" application; it is a legitimate research and management tool that requires pre-existing knowledge of keys to access a card's data. Its source code is available under the GPLv3 license, making it a transparent and community-driven project. mifare classic tool 2.3.1
: Automatically matches a user-defined list of potential cryptographic keys against individual sectors to extract data.
By mapping sector keys against the card, the tool performs a comprehensive read function. It displays the raw hexadecimal data side-by-side with an ASCII translation, making it easy to spot plaintext strings, names, or numerical balances. 3. Precision Writing and Cloning
: Not all Android phones can use MCT. The phone's NFC chip must be manufactured by
This guide covers the core functionalities of the , an Android application for interacting with MIFARE Classic RFID tags (1k, 4k, etc.). ⚠️ Important Disclaimer : Check both std
Tap Map Keys to Sectors . The app will test the keys. Once finished, it displays the data inside every unlocked sector in hexadecimal format. How to Clone a Tag Using Chinese Magic Tags (Gen1A)
: Decode and encode MIFARE Classic "Value Blocks" and access conditions into readable formats or tables.
Check the boxes next to the key maps you want to use (e.g., std.keys and extended.keys ). MCT uses these files to guess the passwords for the card's sectors.
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MIFARE Classic Tool (MCT) is the premier Android application for analyzing, reading, and writing MIFARE Classic RFID tags. Version 2.3.1 delivers critical stability updates and optimized NFC controller mapping for modern Android devices. What is MIFARE Classic Tool 2.3.1?
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is the gold-standard Android application for interacting with MIFARE Classic RFID tags. Developed originally by Gerhard Klostermeier, this open-source utility turns an NFC-enabled Android device into a powerful low-level security analysis tool.