A Personalized User Authentication System Based on EEG Signals

Conventional biometrics have been employed in high-security user-authentication systems for over 20 years now. However, some of these modalities face low-security issues in common practice. Brainwave-based user authentication has emerged as a promising alternative method, as it overcomes some of the...

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Main Authors: Christos Stergiadis, Vasiliki-Despoina Kostaridou, Simos Veloudis, Dimitrios Kazis, Manousos A. Klados
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/22/18/6929
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author Christos Stergiadis
Vasiliki-Despoina Kostaridou
Simos Veloudis
Dimitrios Kazis
Manousos A. Klados
author_facet Christos Stergiadis
Vasiliki-Despoina Kostaridou
Simos Veloudis
Dimitrios Kazis
Manousos A. Klados
author_sort Christos Stergiadis
collection DOAJ
description Conventional biometrics have been employed in high-security user-authentication systems for over 20 years now. However, some of these modalities face low-security issues in common practice. Brainwave-based user authentication has emerged as a promising alternative method, as it overcomes some of these drawbacks and allows for continuous user authentication. In the present study, we address the problem of individual user variability, by proposing a data-driven Electroencephalography (EEG)-based authentication method. We introduce machine learning techniques, in order to reveal the optimal classification algorithm that best fits the data of each individual user, in a fast and efficient manner. A set of 15 power spectral features (delta, theta, lower alpha, higher alpha, and alpha) is extracted from three EEG channels. The results show that our approach can reliably grant or deny access to the user (mean accuracy of 95.6%), while at the same time poses a viable option for real-time applications, as the total time of the training procedure was kept under one minute.
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spelling doaj.art-fc0bf482a8794da790c7b1d86a2a33212023-11-23T18:51:36ZengMDPI AGSensors1424-82202022-09-012218692910.3390/s22186929A Personalized User Authentication System Based on EEG SignalsChristos Stergiadis0Vasiliki-Despoina Kostaridou1Simos Veloudis2Dimitrios Kazis3Manousos A. Klados4Department of Psychology, City College, University of York Europe Campus, 54622 Thessaloniki, GreeceDepartment of Psychology, City College, University of York Europe Campus, 54622 Thessaloniki, GreeceDepartment of Computer Science, City College, University of York Europe Campus, 54622 Thessaloniki, Greece3rd Department of Neurology, Aristotle University of Thessaloniki, Exochi, 57010 Thessaloniki, GreeceDepartment of Psychology, City College, University of York Europe Campus, 54622 Thessaloniki, GreeceConventional biometrics have been employed in high-security user-authentication systems for over 20 years now. However, some of these modalities face low-security issues in common practice. Brainwave-based user authentication has emerged as a promising alternative method, as it overcomes some of these drawbacks and allows for continuous user authentication. In the present study, we address the problem of individual user variability, by proposing a data-driven Electroencephalography (EEG)-based authentication method. We introduce machine learning techniques, in order to reveal the optimal classification algorithm that best fits the data of each individual user, in a fast and efficient manner. A set of 15 power spectral features (delta, theta, lower alpha, higher alpha, and alpha) is extracted from three EEG channels. The results show that our approach can reliably grant or deny access to the user (mean accuracy of 95.6%), while at the same time poses a viable option for real-time applications, as the total time of the training procedure was kept under one minute.https://www.mdpi.com/1424-8220/22/18/6929biometricsEEGsecurityuser authenticationmachine learningapplied neuroscience
spellingShingle Christos Stergiadis
Vasiliki-Despoina Kostaridou
Simos Veloudis
Dimitrios Kazis
Manousos A. Klados
A Personalized User Authentication System Based on EEG Signals
Sensors
biometrics
EEG
security
user authentication
machine learning
applied neuroscience
title A Personalized User Authentication System Based on EEG Signals
title_full A Personalized User Authentication System Based on EEG Signals
title_fullStr A Personalized User Authentication System Based on EEG Signals
title_full_unstemmed A Personalized User Authentication System Based on EEG Signals
title_short A Personalized User Authentication System Based on EEG Signals
title_sort personalized user authentication system based on eeg signals
topic biometrics
EEG
security
user authentication
machine learning
applied neuroscience
url https://www.mdpi.com/1424-8220/22/18/6929
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