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arXiv · 1911.02459

zksk: A Library for Composable Zero-Knowledge Proofs

Wouter Lueks·Bogdan Kulynych·Jules Fasquelle·Simon Le Bail-Collet·Carmela Troncoso
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Abstract

Zero-knowledge proofs are an essential building block in many privacy-preserving systems. However, implementing these proofs is tedious and error-prone. In this paper, we present zksk, a well-documented Python library for defining and computing sigma protocols: the most popular class of zero-knowledge proofs. In zksk, proofs compose: programmers can convert smaller proofs into building blocks that then can be combined into bigger proofs. zksk features a modern Python-based domain-specific language. This makes possible to define proofs without learning a new custom language, and to benefit from the rich Python syntax and ecosystem. The library is available at https://github.com/spring-epfl/zksk

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Wouter Lueks, Bogdan Kulynych, Jules Fasquelle, Simon Le Bail-Collet, Carmela Troncoso. 2019-11-06. zksk: A Library for Composable Zero-Knowledge Proofs. https://doi.org/10.1145/3338498.3358653

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