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This tool is for educational purposes and authorized security testing only. cards are considered insecure. Use on your own cards to understand NFC technology. 1. Prerequisites An NFC-enabled Android phone .

: Decodes complex access bits into an intuitive visual table to reveal which blocks are read-only or read/write.

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.

Mifare Classic Tool 2.3.1

This tool is for educational purposes and authorized security testing only. cards are considered insecure. Use on your own cards to understand NFC technology. 1. Prerequisites An NFC-enabled Android phone .

: Decodes complex access bits into an intuitive visual table to reveal which blocks are read-only or read/write.

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.