ESLRAS: A Lightweight RFID Authentication Scheme with High Efficiency and Strong Security for Internet of Things

Radio Frequency Identification (RFID) is one of the key technologies for Internet of Things (IoT). Due to the limitations of processing capability, storage space and power supply of RFID tag, the traditional security mechanisms cannot be used directly. In addition, the existing security threats become more severe towards RFID authentication scheme. In this paper, we propose an Efficient Secure Lightweight RFID Authentication Scheme based on challenge-response model, named ESLRAS. To achieve authentication efficiency, the key of the tag is chosen to reduce the number of hash computing in database. Furthermore, the key is stored in database and updated constantly with the tag to prevent the tracking attack and the synchronization attack. The correctness of ESLRAS has been proved using GNY logic, and the performance of ESLRAS in terms of security and efficiency is evaluated. Compared with other existing approaches, ESLRAS achieves stronger security and higher efficiency.