An Improved Authentication Approach to Enhance Security and Privacy in RFID System

Radio Frequency Identification (RFID) systems is increasingly rife in a variety of applications during recent years, such as inventory management, automobile immobilizers, animal tracking, supply chain management (SCM) and payment system. However, due to its wireless communication and demand for invisibility, security and privacy in RFID system becomes a serious challenge. In this paper, our main attention is constructing an efficient privacy preserving proposal. After reviewing the past work, we propose an improved method to enhance the security and privacy in RFID system. Based on random hash lock approach, we use random list stored in tag instead random value generator, and this novel method can achieve both mutual authentication with lower tag design cost. Meanwhile, the proposed solution satisfies security requirements, for instance, no information leaking, forward security and is resistant to replay attacks. In addition, it is suitable for distribute environment. Analysis of this approach shows it effective and efficiency. Compared with some existing schemes, this solution is superior.