Mifare Classic 1k Memory Structure

 

Mifare Classic 1k consist of 16 Sectors (4 Blocks each)

Each Block consist of 16 Bytes (16 Ascii Characters)

1. Gray cell is Manufacturer Block which is also where Card UID (Unique Identifier) is stored.
   
1. -UID consist for 4 Bytes
   
2. Yellow cells are Programmable block where you can read/write Information or Value.
   
3. Red cells are Security block where your passwords for Key A and Key B is stored.
   

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