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BioMed Research International
Volume 2013 (2013), Article ID 427542, 7 pages
Research Article

A Study on User Authentication Methodology Using Numeric Password and Fingerprint Biometric Information

1Research Institute, Korea Electric Power Corporation, Yuseong-Gu, Daejeon 305-706, Republic of Korea
2Department of Computer Engineering, Korea University of Technology and Education, Cheonan, Chungnam 330-708, Republic of Korea
3The Faculty of Liberal Arts, Korea University of Technology and Education, Cheonan, Chungnam 330-708, Republic of Korea
4Department of Computer Engineering, Chungnam National University, Yuseong-Gu, Daejeon 305-764, Republic of Korea
5Information Security Engineering, Soonchunhyang University, Asan, Chungnam 336-745, Republic of Korea

Received 5 July 2013; Accepted 11 August 2013

Academic Editor: Sabah Mohammed

Copyright © 2013 Seung-hwan Ju et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The prevalence of computers and the development of the Internet made us able to easily access information. As people are concerned about user information security, the interest of the user authentication method is growing. The most common computer authentication method is the use of alphanumerical usernames and passwords. The password authentication systems currently used are easy, but only if you know the password, as the user authentication is vulnerable. User authentication using fingerprints, only the user with the information that is specific to the authentication security is strong. But there are disadvantage such as the user cannot change the authentication key. In this study, we proposed authentication methodology that combines numeric-based password and biometric-based fingerprint authentication system. Use the information in the user's fingerprint, authentication keys to obtain security. Also, using numeric-based password can to easily change the password; the authentication keys were designed to provide flexibility.