Blockchain-based Security Services for Fog Computing
Arvind W. Kiwelekar, Pramod Patil, Laxman D. Netak, Sanjay U Waikar

TL;DR
This paper explores how blockchain technology can enhance security, privacy, and trust in fog computing environments, addressing the limitations of centralized security approaches in distributed, resource-sharing systems.
Contribution
It proposes leveraging blockchain features like decentralization, cryptography, and smart contracts to develop dependable security services for fog computing.
Findings
Blockchain enables secure authentication and communication in fog systems.
Decentralized trust management improves privacy and availability.
Smart contracts automate security policies effectively.
Abstract
Fog computing is a paradigm for distributed computing that enables sharing of resources such as computing, storage and network services. Unlike cloud computing, fog computing platforms primarily support {\em non-functional properties} such as location awareness, mobility and reduced latency. This emerging paradigm has many potential applications in domains such as smart grids, smart cities, and transport management. Most of these domains collect and monitor personal information through edge devices to offer personalized services. A {\em centralized} server either at the level of cloud or fog, has been found ineffective to provide a high degree of security and privacy-preserving services. Blockchain technology supports the development of {\em decentralized} applications designed around the principles of immutability, cryptography, consistency preserving consensus protocols and smart…
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