Dynamic Key Management in Heterogeneous Wireless Sensor Networks Based on Residual Energy

摘要

Wireless sensor networks (WSNs) are mostly deployed in military, hospitals and other hostile environment and also used in building the Internet of Things applications where a huge number of devices is interconnected through the Internet. As these devices are heterogeneous in nature and are highly resource constrained devices, security issues constitute a major problem for their deployment. Among these issues, the key distribution plays a vital role and requires more research contributions. The proposed work takes the advantage of high-end sensors (H-sensors) which are equipped with tamper-resistant hardware in heterogeneous sensor networks (HSNs). The authenticity, confidentiality, and freshness of the message are guaranteed by using nonces and third-party key authorities. The comparison and theoretical analysis show that the proposed scheme requires less amount of storage space to store the keys. The proposed scheme is simulated using the widely accepted AVISPA (Automated Validation of Internet Security Protocols and Applications) tool and it is proved to be safe and secure. Also, this scheme provides better performance against node capture and replay attack.