An Efficient and Lightweight Certificateless Authentication Protocol for Wireless Body Area Networks

The emergence of wireless body area networks (WBAN) provides ubiquitous wireless communication services for users. But the characteristic of WBAN makes it inevitably suffer from many kinds of attacks, in order to ensure the safety of data (especially the user's privacy information) in transmission and storage. We propose an efficient and lightweight certificateless authentication protocol for WBAN. The protocol reaches anonymity, mutual authentication, non-reputation and some other security features. Moreover, the BAN network coordinator (BNC) only performs some relatively simple operations. The proposed certificateless authentication protocol is based on the design idea of short certificateless signature scheme. Finally, we give a comparison of security features between the proposed protocol and the other schemes. The result shows our scheme has higher computing efficiency and security.