LRMAP: Lightweight and resynchronous mutual authentication protocol for RFID system

Despite various solutions to the security problems in an RFID system, most are unable to fully support all the security requirements. Plus, when designing a viable RFID system, account should also be taken of the computational load on the back-end database and restricted capacity of a tag. Accordingly, an efficient RFID protocol is proposed to reduce the computational load on both the back-end database and the tags, while also guaranteeing most security requirements for RFID wireless communication, including untraceability, authentication, and robustness against replay and spoofing attacks. Plus, in the case of desynchronization resulting from communication failure or malicious attack, the proposed scheme can recover synchronization between the database and the tag.