Blockchain technologies provide excellent architectures and practical tools for securing and managing the sensitive and private data stored in biometric templates, but at a cost. We discuss opportunities and challenges in the integration of blockchain and biometrics, with emphasis in biometric template storage and protection, a key problem in biometrics still largely unsolved. Key tradeoffs involved in that integration, namely, latency, processing time, economic cost, and biometric performance are experimentally studied through the implementation of a smart contract on the Ethereum blockchain platform, which is publicly available in github for research purposes.
@article{arxiv.2003.09262,
title = {Blockchain meets Biometrics: Concepts, Application to Template Protection, and Trends},
author = {Oscar Delgado-Mohatar and Julian Fierrez and Ruben Tolosana and Ruben Vera-Rodriguez},
journal= {arXiv preprint arXiv:2003.09262},
year = {2020}
}
Comments
arXiv admin note: text overlap with arXiv:1904.13128