RFID Security Protocol Based on Synchronous Update of Random Number

With the fast development of Radio Frequency Identification(RFID) and tag usage,security has become the key issue for RFID related applications.In this paper,a new RFID secure protocol is proposed,which uses a synchronized random number created in the backend system,for tag authentication.After tag successful authentication each time,both tag and random number update synchronously.Meanwhile,the performance and security of the protocol are analyzed theoretically.Also the BAN logic is used to prove its security in further.The result show that this protocol can provide authentication between tag and reader,moreover,it can resist attacks such as replay,location tracking,traffic analysis,counterfeiting,denial of service,and illegal access,etc.From the implementation point,it just uses Hash and exclusive XOR operations,which reduces the computing complexity and makes it fitting for low price tags applications.