Research on RFID Security Authentication Protocol Based on Hash Function

In order to improve security and privacy between readers and tags in Radio Frequency Identification(RFID)Sensor Networks,an improved RFID security authentication protocol based on hash function is proposed by comparing with several typical current protocols.Analysis shows that this protocol resists spoofing,tracking,eavesdropping impersonation and replay attack and it is low-cost,high-efficiency and good-security.After setting up the idealized protocol model,a process of formal analysis of this protocol is presented and the security is proved theoretically by using the BAN logic.