Blockchain and Biometrics: Survey, GDPR Analysis, and Future Directions
Mahdi Ghafourian; BILGESU SUMER; Rubén Vera-Rodríguez; Julián Fiérrez; Rubén Tolosana; Aythami Moralez; Els J. Kindt · 2026 · Computers
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Abstract
Biometric recognition, as an efficient and hard-to-forge method of identification and verification, has become an indispensable part of the current digital world. Meanwhile, blockchain has been widely received by both research and industry. Researchers have started to speculate on the pros and cons when these two technologies cross paths. This paper provides a survey of the literature on the combination of blockchain and biometrics and includes a first legal analysis of this integration based on GDPR. Although the integration of blockchain technology into the biometric sector is still in its i
Abstract by Mahdi Ghafourian; BILGESU SUMER; Rubén Vera-Rodríguez; Julián Fiérrez; Rubén Tolosana; Aythami Moralez; Els J. Kindt, Computers (2026) — licensed CC BY 4.0.
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Metadata source: OpenAlex · DOI 10.3390/computers15100716