An Anti-desynchronization Light-Weight Security Protocol of RFID Based on the Time Factor

Aiming at the desynchronization attack problem of lightweight security protocol of RFID, a kind of anti-desynchronization protocol is proposed, which is based on time factor updated instantly. The time factor is stored in the tags, and its role is to ensure the freshness and non-repeatability of the interactive information. The protocol is only related to Hash calculation, XOR and cyclic shift calculation, so it can ensure the low computational complexity. The security of the protocol is proved by the security analysis and BAN logic. According to the results of analysis and proof, compared with the same kind of lightweight security protocols, this protocol can resist not only the general type of attacks, but also the desynchronization attack described in this paper, which ensures the privacy and security of the communication information.