: Create exact duplicates by writing a "dump" of one tag onto another. It also supports writing to the "manufacturer block" (Block 0) of special "magic" tags to clone unique IDs (UIDs).
Because MCT allows users to edit access control data and attempt card cloning from a consumer phone, it must be used responsibly. Security professionals utilize version 2.3.1 to demonstrate vulnerabilities to clients who still rely on legacy physical security infrastructure. Modifying public transit media, bypassing payment systems, or cloning access badges without explicit permission is illegal. Installation and Workflow
Version 2.3.1 is an older but stable version of the application. It is available from several sources: mifare classic tool 2.3.1
The card is split into 16 sectors (numbered 0 to 15). Each sector contains 4 blocks. Block Size: Each block contains exactly 16 bytes of data.
The MIFARE Classic uses a proprietary stream cipher called Crypto-1. For years, it was considered secure. However, in 2008, researchers reverse-engineered the algorithm. By 2019 (when the core logic of MCT 2.3.1 was maturing), tools could break a 48-bit key in under 2 minutes using a standard smartphone. : Create exact duplicates by writing a "dump"
The official page for MIFARE Classic Tool is available on the Google Play Store. While the latest version might be newer (4.3.1 as of 2026), historical versions can sometimes be obtained through third-party APK repositories, though with caution.
MCT allows users to perform various tasks that standard NFC apps cannot, provided they have the correct encryption keys for the target tag: Security professionals utilize version 2
[Enable NFC] ➔ [Open MCT] ➔ [Read Tag] ➔ [Select Keys] ➔ [Map & Save] : Turn on NFC in your Android system settings. Launch MCT : Open the application and select Read Tag .