Cryptanalysis of an Authentication Protocol for IoT-Enabled Devices in Distributed Cloud Computing Environment

In recent years, more and more authentication protocols combining cloud computing and IoT are proposed for secure communication and access of the Internet of things. In 2020, Kang et al. Proposed a mutual authentication protocol based on distributed cloud computing environment for secure communication. They claim that their agreement can withstand all kinds of attacks. Unfortunately, this paper certificates that Kang et al.'s scheme is very vulnerable to temporary information attack of specific session.