Fake information mechanism based privacy-preserving average consensus

Yakun Zhu, Jing Lu, Xiaoyu Du and Ge Guo

International Journal of Systems Science, 2023, vol. 54, issue 8, 1803-1814

Abstract: In order to reach an agreement, each agent in distributed systems needs to exchange its state information with neighbours. In this case, however, it is difficult to guarantee sensitive information will not be leaked. To tackle the problem, this paper proposes an encryption method, which does not need to compromise accuracy to privacy, nor does it need to encrypt and decrypt state information every time. Meanwhile, the method in this paper not only keeps the initial state secret, but also considers the real-time state privacy. Then, we further elaborate two aspects of the proposed method by simple proofs. Finally, simulations are presented to verify the effectiveness of our algorithm.

Date: 2023
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DOI: 10.1080/00207721.2023.2210139

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