RFID protocol based on random number and encryption hash

The features of the RFID system and the constraints of RFID devices may bring about various privacy problems. After analyzing some existing RFID protocols, this paper proposes a new protocol based on random number and encryption hash. A process of formal analysis is presented by using BAN logic; the security and the complexity of this protocol are compared with other typical ones. The messages in the protocol are encrypted by key, it makes the protocol can prevent from illegal reading, tracking, eavesdropping, spoofing and replay attack. Both theory and analysis show that this new protocol can ensure the security of RFID systems and keep low-cost.