A RFID mutual authentication protocol based on randomized Hash lock

• 1、School of Computer Science and Engineering,Northwestern Polytechnical Univ
• 2、School of Computer Science and Engineering,Northwestern Polytechnical Univ., Xi'an 710072, China

Abstract：Comparing the identity information of the tag and the random number with the hash function, a RFID mutual authentication protocol based on random hash function is proposed. In this scheme, transferred information between the tag and the reader isn't the true identity information of the tag, but the hash value combined with identity information of the tag and the random number, which ensures the security and privacy of the tag's identity information; the query work of the identity information of the certified tag is executed in the background database, which reduces the burden of the reader. During the mutual authentication of the tag and the reader, the integrity of received data is tested through the cycle redundancy check. Analysis of basic ideology and authentication process show that the protocol can achieve the security requirements of data confidentiality, tag anonymity, mutual authentication and data integrity, avoid accusation such as eavesdropping attack, trick attack, track attack and so on. Compared with existing protocols, the proposed protocol can provide higher security, higher efficiency and lower cost.

Keywords： RFID random hash function mutual authentication security protocol