Zero-Knowledge eKYC in Decentralized Systems: ZK-Proofs and ZK-SNARKs Circuits with Circom ZK and Iden3 Protocol

  • Unique Paper ID: 168196
  • Volume: 11
  • Issue: 5
  • PageNo: 89-97
  • Abstract:
  • The proliferation of digital documents and rising privacy concerns have created an urgent need for secure, confidential verification systems. This paper presents a novel approach to document verification in decentralized systems using zero-knowledge proofs (ZKPs) and zero-knowledge succinct non-interactive arguments of knowledge (ZK-SNARKs). We propose a framework that leverages the Circom ZK circuit design language and the Iden3 protocol to create a privacy-preserving document verification system. Our research explores ZK-proofs and blockchain technology, demonstrating how these cryptographic techniques can verify document integrity and authenticity without revealing sensitive information. We present a detailed analysis of Circom ZK, showcasing its efficacy in creating complex arithmetic circuits for document-related proofs. The integration of the Iden3 protocol addresses the challenges of identity management in decentralized environments. We outline the design and implementation of ZK-SNARK circuits using Circom, each tailored to specific document verification scenarios. Performance and security evaluations indicate significant improvements in privacy preservation and a reduction in on-chain data requirements, albeit with a moderate increase in computational overhead. This research contributes to the growing body of knowledge on privacy-enhancing technologies in blockchain systems and offers a practical solution for implementing secure, privacy-preserving document verification in decentralized environments.

Copyright & License

Copyright © 2025 Authors retain the copyright of this article. This article is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

BibTeX

@article{168196,
        author = {Ehtesham Siddiqui},
        title = {Zero-Knowledge eKYC in Decentralized Systems: ZK-Proofs and ZK-SNARKs Circuits with Circom ZK and Iden3 Protocol},
        journal = {International Journal of Innovative Research in Technology},
        year = {2024},
        volume = {11},
        number = {5},
        pages = {89-97},
        issn = {2349-6002},
        url = {https://ijirt.org/article?manuscript=168196},
        abstract = {The proliferation of digital documents and rising privacy concerns have created an urgent need for secure, confidential verification systems. This paper presents a novel approach to document verification in decentralized systems using zero-knowledge proofs (ZKPs) and zero-knowledge succinct non-interactive arguments of knowledge (ZK-SNARKs). We propose a framework that leverages the Circom ZK circuit design language and the Iden3 protocol to create a privacy-preserving document verification system. Our research explores ZK-proofs and blockchain technology, demonstrating how these cryptographic techniques can verify document integrity and authenticity without revealing sensitive information. We present a detailed analysis of Circom ZK, showcasing its efficacy in creating complex arithmetic circuits for document-related proofs. The integration of the Iden3 protocol addresses the challenges of identity management in decentralized environments. We outline the design and implementation of ZK-SNARK circuits using Circom, each tailored to specific document verification scenarios. Performance and security evaluations indicate significant improvements in privacy preservation and a reduction in on-chain data requirements, albeit with a moderate increase in computational overhead. This research contributes to the growing body of knowledge on privacy-enhancing technologies in blockchain systems and offers a practical solution for implementing secure, privacy-preserving document verification in decentralized environments.},
        keywords = {Zero-Knowledge Proofs, ZK-SNARKs, Circom ZK, Iden3, Blockchain, Document Verification, Privacy-Preserving Technology, Decentralized Systems},
        month = {September},
        }

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