Journal
SYSTEMS & CONTROL LETTERS
Volume 148, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.sysconle.2020.104869
Keywords
Network security; Secure control; Privacy-preserving; Paillier encryption; Multi-agents; Consensus
Funding
- Australian Research Council [DP150103745]
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This paper focuses on secure and privacy-preserving consensus algorithms for networked systems. It explores an average consensus algorithm for systems with second-order dynamics using Paillier encryption and adds randomness to network weights. The study thoroughly examines the conditions for privacy preservation, especially in relation to consensus rate, through theoretical analysis and numerical verification.
This paper aims at secure and privacy-preserving consensus algorithms of networked systems. Due to the technical challenges behind decentralized design of such algorithms, the existing results are mainly restricted to a network of systems with simplest first-order dynamics. Like many other control problems, breakthrough of the gap between first-order dynamics and higher-order ones demands for more advanced technical developments. In this paper, we explore a Paillier encryption based average consensus algorithm for a network of systems with second-order dynamics, with randomness added to network weights. The conditions for privacy-preserving, especially depending on consensus rate, are thoroughly studied with theoretical analysis and numerical verification. (C) 2020 Elsevier B.V. All rights reserved.
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