• P-ISSN 0974-6846 E-ISSN 0974-5645

Indian Journal of Science and Technology


Indian Journal of Science and Technology

Year: 2022, Volume: 15, Issue: 41, Pages: 2115-2120

Original Article

A Reliable Block-Chain Based Biometric Authentication Solution for Aadhar

Received Date:29 March 2022, Accepted Date:22 September 2022, Published Date:31 October 2022


Objectives: To propose a reliable Block-chain based Biometric Authentication Solution (BBAS) for the Aadhar biometric authentication system. Methods: We have used Sokoto Coventry Fingerprint Dataset (SOCOFing) data set for biometrics. The presented model was implemented using the Ethereum network Geth (v.1.9.25) and Solidity (v.0.6.0). Python 3.8 and Web3py were used at the client side. Findings: From the proposed solution, it is inferred that the BBAS avoids the single point of failure problem as the biometrics are distributed throughout the block-chain. Novelty: This research proposes a new hybrid scheme that uses a block-chain that stores the hash value of the biometric files and a trusted third party (Aadhar) to store the biometric files, thereby avoiding storing the same bio-metric files throughout the block-chain.

Keywords: Biometric; Blockchain; Aadhar; Security; Authentication


  1. Zhu X, Cao C. Secure Online Examination with Biometric Authentication and Blockchain-Based Framework. Mathematical Problems in Engineering. 2021;2021:1–12. Available from: https://doi.org/10.1155/2021/5058780
  2. Gracia SJB, Raghav D, Santhoshkumar R, Velprakash B. Blockchain based aadhaar. 2019 3rd international conference on computing and communications technologies (ICCCT). 2019;p. 173–177. Available from: https://www.irjet.net/archives/V7/i3/IRJET-V7I3254.pdf
  3. Acquah MA, Chen N, Pan JS, Yang HM, Yan B. Securing Fingerprint Template Using Blockchain and Distributed Storage System. Symmetry. 2020;12(6):951. Available from: https://doi.org/10.3390/sym12060951
  4. Li X, Jiang P, Chen T, Luo X, Wen Q. A survey on the security of blockchain systems. Future Gener. Comput. Syst. 2020;107:841–853. Available from: https://doi.org/10.48550/arXiv.1802.06993
  5. Delgado-Mohatar O, Fierrez J, Tolosana R, Vera-Rodriguez R. Blockchain and biometrics: A first look into opportunities and challenges. In: International Congress on Blockchain and Applications. (pp. 169-177) Springer. 2019.
  6. Hassen OA, Abdulhussein AA, Darwish SM, Othman ZA, Tiun SA, Lotfy YA. Towards a Secure Signature Scheme Based on Multimodal Biometric Technology: Application for IOT Blockchain Network. Symmetry. 2020;12(10):1699. Available from: https://doi.org/10.3390/sym12101699
  7. Páez R, Pérez M, Ramírez G, Montes J, Bouvarel L. An Architecture for Biometric Electronic Identification Document System Based on Blockchain †. Future Internet. 2020;12(1):10. Available from: https://doi.org/10.3390/fi12010010
  8. Shehu YI, Ruiz-Garcia A, Palade V, James A. Sokoto coventry fingerprint dataset. arXiv preprint . 2018;1807:10609. Available from: https://doi.org/10.48550/arXiv.1807.10609


© 2022 Pradeep & Sunitha. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Published By Indian Society for Education and Environment (iSee)


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