A Certificateless Authentication and Key Agreement Scheme for Secure Cloud-assisted Wireless Body Area Network

Wearable electronic equipments and wireless communications provide convenience to the patients. Wireless body area network has entered our lives, helping in making medical diagnosis. Despite various benefits brought by wireless body area network, some security challenges still restrict its application, like identity protection and mutual authentication. Certificateless authentication is a good solution to solve these issues. Recently, it has been seen that several authentication schemes that can get rid of restricts from security challenges. In this paper, we find security risks in a cloud-assisted authentication protocol and design a new anonymous certificateless authentication scheme based on the issue. The scheme can ensure secure and communication between the wearable devices and the cloud server. As for the security of the protocol, we give a description of security attributes and a security proof. Finally, the performance analysis of the scheme is shown at the end of the paper.