Non-interactive zero-knowledge proof scheme from RLWE-based key exchange

Shaofen Xie, Wang Yao, Faguo Wu and Zhiming Zheng

PLOS ONE, 2021, vol. 16, issue 8, 1-19

Abstract: Lattice-based non-interactive zero-knowledge proof has been widely used in one-way communication and can be effectively applied to resist quantum attacks. However, lattice-based non-interactive zero-knowledge proof schemes have long faced and paid more attention to some efficiency issues, such as proof size and verification time. In this paper, we propose the non-interactive zero-knowledge proof schemes from RLWE-based key exchange by making use of the Hash function and public-key encryption. We then show how to apply the proposed schemes to achieve the fixed proof size and rapid public verification. Compared with previous approaches, our schemes can realize better effectiveness in proof size and verification time. In addition, the proposed schemes are secure from completeness, soundness, and zero-knowledge.

Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0256372

DOI: 10.1371/journal.pone.0256372

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