Research on Authentication Protocol of RFID Based on Multi-Level Security Policy

RFID technology is widely applied to all aspects of humans' daily lives. As a result, the security and privacy issues of low-cost RFID system become a research hotspot. This paper puts forward a RFID authentication protocol based on the multilevel security strategy. Compared with traditional security authentication protocol, new protocol not only reduces the hardware requirements of the label and the power consumption of the whole system, but also has more flexibility to safely protect the privacy of our users. The multilevel security authentication pattern employed in the protocol can effectively resist a variety of known attacks, especially against the unauthorized tag attack and unauthorized information of authorized tag attack. The new authentication model is more secure, has less hardware requirements and is more suitable for low-cost RFID system.