Welcome to the resource topic for 2025/916
Title:
Automated Verification of Consistency in Zero-Knowledge Proof Circuits
Authors: Jon Stephens, Shankara Pailoor, Isil Dillig
Abstract:Circuit languages like Circom and Gnark have become essential tools for programmable zero-knowledge cryptography, allowing developers to build privacy-preserving applications. These domain-specific languages (DSLs) encode both the computation to be verified (as a witness generator) and the corresponding arithmetic circuits, from which the prover and verifier can be automatically generated. However, for these programs to be correct, the witness generator and the arithmetic circuit need to be mutually consistent in a certain technical sense, and inconsistencies can result in security vulnerabilities. This paper formalizes the consistency requirement for circuit DSLs and proposes the first automated technique for verifying it. We evaluate the method on hundreds of real-world circuits, demonstrating its utility for both automated verification and uncovering errors that existing tools are unable to detect.
ePrint: https://eprint.iacr.org/2025/916
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