# Blockchain and Biometrics: A First Look into Opportunities and Challenges

## TL;DR

This paper explores the potential and challenges of integrating blockchain technology with biometrics, focusing on how blockchain can enhance biometric template protection and address security concerns.

## Contribution

It provides an overview of blockchain and biometrics, highlighting opportunities, challenges, and detailed discussion on blockchain-based biometric template protection.

## Key findings

- Blockchain can improve biometric security and privacy.
- Combining blockchain with biometrics presents unique opportunities and challenges.
- Blockchain-based biometric template protection offers promising security enhancements.

## Abstract

Blockchain technology has become a thriving topic in the last years, making possible to transform old-fashioned operations to more fast, secured, and cheap approaches. In this study we explore the potential of blockchain for biometrics, analyzing how both technologies can mutually benefit each other. The contribution of this study is twofold: 1) we provide a short overview of both blockchain and biometrics, focusing on the opportunities and challenges that arise when combining them, and 2) we discuss in more detail blockchain for biometric template protection.