This article surveys the literature over the period 2003-2021 on heart-based biometric protocols. In particular, we focus on how the heart signal is transformed from a continuous wave to discrete values to be used afterwards in authentication protocols. We explain and classify the surveyed proposals according to three main parameters: i) the dataset they use for testing their results; ii) the delineation algorithms they use to extract the fiducial points, and; iii) the cryptographic tests they run (if any) to validate how random the extracted token is.
@article{arxiv.2202.02807,
title = {Heart-Based Biometric Protocols: A look back over almost two decades},
author = {Lara Ortiz-Martin and Pablo Picazo-Sanchez},
journal= {arXiv preprint arXiv:2202.02807},
year = {2022}
}