Blockchain for Trust and Reputation Management in Cyber-physical Systems

TL;DR

This paper explores how blockchain technology enhances trust and reputation management in cyber-physical systems, providing a comprehensive overview of current methods, applications, and future challenges.

Contribution

It offers a generic framework for decentralized trust and reputation systems and reviews their application across various cyber-physical systems.

Findings

Blockchain enables transparent trust assessment in CPS.

DTRMS are applied in supply chains, smart cities, and energy trading.

Challenges include scalability and security issues.

Abstract

The salient features of blockchain, such as decentralisation and transparency, have allowed the development of Decentralised Trust and Reputation Management Systems (DTRMS), which mainly aim to quantitatively assess the trustworthiness of the network participants and help to protect the network from adversaries. In the literature, proposals of DTRMS have been applied to various Cyber-physical Systems (CPS) applications, including supply chains, smart cities and distributed energy trading. In this chapter, we outline the building blocks of a generic DTRMS and discuss how it can benefit from blockchain. To highlight the significance of DTRMS, we present the state-of-the-art of DTRMS in various field of CPS applications. In addition, we also outline challenges and future directions in developing DTRMS for CPS.