FogAutho: Leveraging a novel authentication scheme for securing fog-cloud systems in smart home applications

We propose a light-weighted authentication scheme FogAutho for securing fog-cloud systems in smart home applications. It uses a novel approach to generate a session key after authenticating both ends; Fog and IoT layers. The cloud server may revoke the session key. Our proposed approach minimizes the communication between end users, fog server, and cloud server during data authentication. FogAutho achieves security objectives such as mutual authentication for both ends, a secure session key generation, data confidentiality, and attack resistance with significantly reduced communication overhead compared to the existing authentication mechanisms in the fog-cloud system.