Research And Application Of RFID Security Authentication In Low-power Terminal Of Internet Of Things

Radio frequency identification(RFID)technology is a technology that realizes contactless identification through the mutual coupling of wireless radio frequency signals.With the rapid development of the Internet of Things technology,RFID electronic tag is widely used in various fields because of its non-contact,low cost,long identification distance and large storage capacity.However,the security and privacy issues of RFID systems are becoming increasingly prominent.At present,in all strategies to ensure the security of RFID systems,reliable security protocols have become one of the key technologies.In this paper,based on the terminal of the Internet of things that require high power consumption and have limited computing power,the ultra-lightweight authentication protocol of RFID is studied.Firstly,this paper introduces some basic knowledge of RFID technology,including radio frequency communication system and RFID system components.And then the security threats such as tampering,eavesdropping,and denial of service attacks on RFID systems are studied.The security requirements such as data confidentiality,label anonymity,forward and backward security,etc.are presented.Then,according to the actual security requirements,an ultra-lightweight RFID authentication protocol based on Per operation function was proposed.Using shift,XOR operations and function of bit operations,the protocol has achieved anonymity of the identity of the communication both sides and met security requirements.In addition,the back-end database storing the current and previous authentication information,and with designing of the time stamp,the protocol can effectively resist denial of service and desynchronization attacks.BAN logic is used to prove its completeness.And the simulation model is built with OPNET software.After analysis and comparison,After analysis and comparison,the new protocol has good security advantages.Finally,according to the current status of smart manhole cover locks,a smart manhole cover lock terminal based on NB-IoT and RFID technology is designed.The terminal mainly implements two functions: real-time tilt monitoring of the manhole cover and the key with permission to unlock.The hardware composition and software design of each module of the lock end and the key end are described in detail.And a switch lock algorithm based on the RFID protocol is designed.The key end and the lock end realize the switch lock by RFID authentication.The test results show that the intelligent manhole cover lock terminal based on the protocol in this paper can keep good operation,which verifies the practicability of the protocol.