Incorporating Zero-Knowledge Succinct Non-interactive Argument of Knowledge for Blockchain-based Identity Management with off-chain computations

• URL: http://arxiv.org/abs/2310.19452v1
• Date: Mon, 30 Oct 2023 11:24:05 GMT
• Title: Incorporating Zero-Knowledge Succinct Non-interactive Argument of Knowledge for Blockchain-based Identity Management with off-chain computations
• Authors: Pranay Kothari, Deepak Chopra, Manjot Singh, Shivam Bhardwaj, Rudresh Dwivedi,
• Abstract summary: A novel blockchain-based fingerprint authentication system is proposed that integrates zk-SNARKs. The proposed method has the potential to provide a secure and efficient solution for blockchain-based identity management.
• Score: 0.8621608193534839
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: In today's world, secure and efficient biometric authentication is of keen importance. Traditional authentication methods are no longer considered reliable due to their susceptibility to cyber-attacks. Biometric authentication, particularly fingerprint authentication, has emerged as a promising alternative, but it raises concerns about the storage and use of biometric data, as well as centralized storage, which could make it vulnerable to cyber-attacks. In this paper, a novel blockchain-based fingerprint authentication system is proposed that integrates zk-SNARKs, which are zero-knowledge proofs that enable secure and efficient authentication without revealing sensitive biometric information. A KNN-based approach on the FVC2002, FVC2004 and FVC2006 datasets is used to generate a cancelable template for secure, faster, and robust biometric registration and authentication which is stored using the Interplanetary File System. The proposed approach provides an average accuracy of 99.01%, 98.97% and 98.52% over the FVC2002, FVC2004 and FVC2006 datasets respectively for fingerprint authentication. Incorporation of zk-SNARK facilitates smaller proof size. Overall, the proposed method has the potential to provide a secure and efficient solution for blockchain-based identity management.

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