Research of an Improved RFID Authentication Protocol

Abstract

As a new automatic diagnosis technology, RFID is gradually widely used. But the characteristics of the RFID system and the limitations of RFID equipment have brought many security problems. For these problems, this paper discusses and explains system composition and security problems of RFID, analyzes features and deficiency of the existing typical RFID security protocols, and then puts forward a RFID security protocol based on key matrix. This protocol uses the key matrix to encrypt the data transferred between Reader and Tag, and after authentication it can renew the secret value of Tag to resist various attacks. Linux test has proved that this protocol has the features of high efficiency, low cost and high security. Keywords-RFID; key matrix; security protocol; access control I I NTRODUCTION The access control system is an impo rtant tool in security measures. In recent years, the emergence of new technologies has transformed fro m traditional access control system to intelligent access control system. RFID(Radio Frequency Identificat ion) Access control systems, an intelligent access control system, has extensively used in schools , residential areas , business units , research institutes and other institutions of security and attendance management.