Since the 90s, after MIFARE classic launched, MIFARE Classic card has been known for 20 years because of its high security, and contactless RFID for multiple independent programmable encryption space applications. The MIFARE Classic card has been used for billions of sales. It is the best example of successful RFID application. The MIFARE Classic card is widely used in RFID city citizen cards, RFID bus stored-value cards, RFID campus cards, and other various applications. According to the size of the memory space required by the application, targeted different models can be selected.