Public Auditing Scheme With Identity Privacy Preserving Based on Certificateless Ring Signature for Wireless Body Area Networks

The emergence of Wireless Body Area Networks (WBAN) provides users with ubiquitous wireless communication services, such as continuous exchange of medical information in real time. Therefore, WBAN is considered to be one of the effective wireless sensor technologies for improving medical services. However, the characteristics of WBAN make it subject to multiple attacks, such as the leakage of private information of users, and WBAN is also inefficient. In this paper, a certificateless ring signature scheme CLRS is proposed. In addition, we propose a public auditing scheme with identity privacy protection, which combines the certificateless ring signature technology for cloud-assisted body area network. Through the analysis of security, it shows that the scheme can resist the existing attack methods such as forging attacks. Finally, the comparison between theoretical analysis and experimental simulation shows that the scheme has obvious efficiency advantages compared with the existing scheme.