A robust multi-factor remote user authentication scheme for cloud-IoT services.

The rapid growth of communication technologies with the internet as a backbone requires secure remote access. Cloud computing and internet of things (IoT) is a growing information and communication technologies (ICT) paradigm which consists of several internet-enabled devices. Due to the ever increasing amount of data generated in cloud-IoT environment, securing these systems becomes crucial. This paper proposes a robust remote user authentication scheme for cloud-IoT services. Formal and informal security analysis proves that the scheme is resilient to potential attacks. The simulation of the proposed scheme using AVISPA proves the security of the proposed scheme.