A Research Perspective on Security in Fog Computing Through Blockchain Technology

Most modernistic applications comprising of the Internet of Things are deployed on a cloud environment, which offers advantages like virtual infinite resources, massive elasticity of resources on a pay as per usage metric model. Additionally, IoT real-time applications, essentially self-driving cars, smart home security systems etc., require low latency and less response time. To achieve that, the computation and analysis of data needs to be deployed closer to the edge of the network. The extension of computing services to the edge nodes is termed as 'Fog Computing'. Since every technology comes with two-faced implications; fog computing also suffers with few security issues, majorly comprising user authentication, access control, and data protection from security attacks. Blockchain technology is a promising paradigm to address these security flaws. In this paper, an infrastructure based on blockchain technology coupled with fog computing is proposed as a measure to mitigate the security attacks.