The Beta V0.1 toolkit stands on the shoulders of a rich history of Mifare Classic research. The foundational vulnerabilities in the Crypto-1 cipher were first publicly disclosed in 2008, sparking a wave of academic and practical security research. Over the years, multiple implementations have emerged, including:

At this point, gymcard.dmp is a raw binary. You can analyze it or even write it to a blank Mifare Classic card (a clone) using tools like mfoc or a Proxmark script.

Never run unknown binary executables from "RFID tool" sites. Compile from source after reading every line of main.c .

: The card relies on a proprietary stream cipher called CRYPTO1 for authentication and data encryption.

: Unlike more advanced versions, this beta requires users to input raw hexadecimal data for writing operations, as it lacks a high-level graphical interface for data formatting. Usage Limitations