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Paper 2019/953

PLONK: Permutations over Lagrange-bases for Oecumenical Noninteractive arguments of Knowledge

Ariel Gabizon and Zachary J. Williamson and Oana Ciobotaru

Abstract

zk-SNARK constructions that utilize an updatable universal structured reference string remove one of the main obstacles in deploying zk-SNARKs [GKMMM, Crypto 2018]. The important work of Maller et al. [MBKM, CCS 2019] presented $\mathsf{Sonic}$ - the first potentially practical zk-SNARK with fully succinct verification for general arithmetic circuits with such an SRS. However, the version of $\mathsf{Sonic}$ enabling fully succinct verification still requires relatively high proof construction overheads. We present a universal SNARK construction with fully succinct verification, and significantly lower prover running time (roughly 7.5-20 less group exponentiations than [MBKM] in the fully succinct verifier mode depending on circuit structure). Similarly to [MBKM], we rely on a permutation argument based on Bayer and Groth [Eurocrypt 2012]. However, we focus on ``Evaluations on a subgroup rather than coefficients of monomials''; which enables simplifying both the permutation argument and the artihmetization step.

Metadata
Available format(s)
PDF
Publication info
Preprint. MINOR revision.
Keywords
zk-SNARKs
Contact author(s)
ariel gabizon @ gmail com
History
2024-02-23: last of 42 revisions
2019-08-21: received
See all versions
Short URL
https://ia.cr/2019/953
License
Creative Commons Attribution
CC BY
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