- 期刊
An Improved User Identity Authentication Protocol for Multi-Gateway Wireless Sensor Networks
摘要
As an important part of the IoT (IoT), wireless sensor networks (WSNs) have been widely studied and applied in many fields. However, wireless sensor networks are prone to various security risks due to their openness. This paper reviews the contents of Srinivas et al.'s protocol and finds that the protocol is vulnerable to stolen smart card attacks and cannot achieve time synchronization, forward secrecy, and user anonymity. Then an improved user identity authentication protocol IUIAP is proposed. The security of protocol IUIAP is demonstrated by security analysis using BAN logic, a formal analysis method proposed by Burrows, Abadi, and Needham. The performance comparison and efficiency analysis with other related protocols are carried out. The results show that the improved protocol IUIAP can solve the security defects of Srinivas et al.'s protocol and can provide various security properties with little more computation cost, such as resistance to stolen smart card attacks and insider attacks, anonymous protection for users, protection for known keys, protection for forwarding secrecy and without problems of time synchronization. Therefore, the improved protocol IUIAP is more secure and suitable for multi-gateway WSNs.