is a specialized Android application designed for low-level interaction with MIFARE Classic RFID tags. While newer versions like 4.3.1 are currently available on platforms like Google Play and F-Droid , many users specifically seek version 2.3.1 or similar legacy builds for compatibility with older Android hardware or specific firmware environments. Core Features of MIFARE Classic Tool
: The app includes a "Diff Tool" to compare the contents of two different tag dumps, making it easier to identify which bits of data change during specific actions (like a balance decrease on a transport card) mifare classic tool 2.3.1
MIFARE Classic Tool (MCT) version 2.3.1 is an open-source Android application designed for low-level interaction with MIFARE Classic RFID tags. Released around October 2020, this version serves as a stable point in the tool's history for reading, writing, and analyzing tags using a device's built-in NFC controller. Core Features of MCT 2.3.1 is a specialized Android application designed for low-level
: The app can display the memory structure of a card, including its Access Conditions and Sector Trailers. Value Blocks Released around October 2020, this version serves as
Since brute-forcing 48-bit keys is computationally infeasible on mobile hardware, MCT employs a dictionary attack.
Modifying data blocks on compatible tags.
standard. While they were revolutionary when released in 1994, they are now considered insecure by modern standards because their proprietary encryption (CRYPTO1) has been compromised.