A RFID Mutual Authentication Security Protocol Design and Analysis

For RFID mutual authentication security protocols which need back-end server have poor mobile performance, it cannot be applied to environments which have poor wireless network. The RFID mutual authentication security protocol based on key dispersion algorithm is designed in this paper, which proposes a new method for managing and distributing keys for a large number of tags. This protocol which does not need the back-end database can be achieved security mutual authentication between the reader and the tag, the reader only need to store a pair of root keys, the key dispersal algorithms can disperse the corresponding mutual authentication keys with the tag identification number. Compared with the other of the same type RFID mutual authentication security protocols, results indicate that the proposed protocol in this paper has higher efficiency and security.