Hash-Based RFID Tag Mutual Authentication Scheme with Retrieval Efficiency

RFID(Radio Frequency Identification) system is apromising automatic identification technology that usecommunication via radio waves to identify and track movingobjects. RFID systems, however, are susceptible to a variety ofsecurity problems and fundamental solutions to RFID securityvulnerabilities have not yet been proposed. This paperproposes an RFID tag mutual authentication scheme thatresists security threats posed by inherent characteristics oflow-cost RFID systems. The proposed scheme utilize themodulo operation to improve the efficiency of tag retrieval inthe back-end server and employs the hash function to provideenhanced security.