Research On RFID Security Protocol Based On Group Authentication

Radio Frequency Identification(RFID)is a technology that uses radio frequency signals for information transmission to achieve automatic target identification.Among them,Ultra-High Frequency(UHF)RFID has been widely used in warehousing management,smart logistics,smart transportation and other fields because of its long effective distance and low label production cost.However,with the increasing application scenarios of RFID technology,many of its security risks have gradually emerged.This thesis mainly analyzes and researches the existing RFID group authentication protocols,and proposes an improved group authentication protocol based on the hardware characteristics of UHF RFID devices.The main research contents are as follows:?.Proposed a RFID security authentication protocol for group tags.Limited by the hardware conditions of the UHF tag itself,it is determined that the encryption algorithm with a large amount of calculation is not suitable for low cost tag.At the same time,in large RFID systems,a large number of tags need to be authenticated.In this thesis,time slice grouping is used to improve the grouping efficiency and identification efficiency.On this basis,a RFID security authentication protocol suitable for low-cost tags is proposed.In this protocol,after each round of authentication,the equipment involved in authentication needs to be encrypted.The key is updated to ensure the security of the entire system.Simulation experiment results show that the RFID security authentication protocol can effectively resist common attacks.?.Proposed a label ownership transfer agreement.In a RFID system of the logistics industry,the transfer process of tag ownership is often encountered.At present,there are few studies on the transfer of ownership in RFID security protocols,so that the security risks in the process of tag ownership transfer have not received enough attention.In this thesis,the ownership transfer protocol is added outside the process of security certification,and the protocol is used to control the security of the ownership transfer process.The ownership transfer protocol proposed in this thesis mainly ensures that all the privacy information among the users will not be disclosed,thereby protecting the privacy of the owner.?.Designed and developed a web-based RFID management system,which uses B/S architecture.In this system,the RFID group tag authentication protocol and ownership transfer protocol proposed in Chapter 3 and Chapter 4 are applied.By deploying the management system onthe back-end server,users no longer need to install special RFID software locally,and can monitor and manage the RFID system by simply operating in the browser.