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Sensors 2016, 16(12), 2123; doi:10.3390/s16122123

Three-Factor User Authentication and Key Agreement Using Elliptic Curve Cryptosystem in Wireless Sensor Networks

School of Electronics Engineering, Kyungpook National University, Daegu 41566, Korea
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Author to whom correspondence should be addressed.
Academic Editor: Kemal Akkaya
Received: 19 October 2016 / Revised: 9 December 2016 / Accepted: 12 December 2016 / Published: 14 December 2016
(This article belongs to the Section Sensor Networks)
View Full-Text   |   Download PDF [1212 KB, uploaded 14 December 2016]   |  

Abstract

Secure communication is a significant issue in wireless sensor networks. User authentication and key agreement are essential for providing a secure system, especially in user-oriented mobile services. It is also necessary to protect the identity of each individual in wireless environments to avoid personal privacy concerns. Many authentication and key agreement schemes utilize a smart card in addition to a password to support security functionalities. However, these schemes often fail to provide security along with privacy. In 2015, Chang et al. analyzed the security vulnerabilities of previous schemes and presented the two-factor authentication scheme that provided user privacy by using dynamic identities. However, when we cryptanalyzed Chang et al.’s scheme, we found that it does not provide sufficient security for wireless sensor networks and fails to provide accurate password updates. This paper proposes a security-enhanced authentication and key agreement scheme to overcome these security weaknesses using biometric information and an elliptic curve cryptosystem. We analyze the security of the proposed scheme against various attacks and check its viability in the mobile environment. View Full-Text
Keywords: user authentication; key agreement; biometric information; elliptic curve cryptosystem; wireless sensor networks user authentication; key agreement; biometric information; elliptic curve cryptosystem; wireless sensor networks
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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. (CC BY 4.0).

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Park, Y.; Park, Y. Three-Factor User Authentication and Key Agreement Using Elliptic Curve Cryptosystem in Wireless Sensor Networks. Sensors 2016, 16, 2123.

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