A Systematic Review on Fog Computing Security Algorithms on Current IoT Applications and Solutions

Fog computing models consist of a cloud-like platform that possesses different layers like application services, data, storage, and computation. Fog computing and cloud computing were considered similar in multiple aspects although the cloud operates as a centralized infrastructure whereas Fog computing is a distributed decentralized system. With Fog systems a large amount of data can be processed and operated through the on-premise equipment. Fog systems can be installed on heterogeneous hardware. It is indispensable to have Internet of Things (IoT) devices with rapid processing and transmitting capabilities. Several security issues about monitoring, data, malware, segregation, virtualization, and network are intensified by this broad range of functionality-driven applications. This survey focuses on the modern applications of Fog computing to identify the research gaps in terms of security. Technologies such as Micro-data centers and Cloudlets have also been analyzed in this work. Many of the applications of Fog computing overlook the aspect of security and more attention is given only to the improved functionality. This survey also discusses the consequences of the vulnerabilities and possible solutions, as well as the improved level of security measures in Fog systems.