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Mobile Information Systems
Volume 7 (2011), Issue 3, Pages 241-269

A Handover Security Mechanism Employing the Diffie-Hellman Key Exchange Approach for the IEEE802.16e Wireless Networks

Yi-Fu Ciou,1 Fang-Yie Leu,1 Yi-Li Huang,1 and Kangbin Yim2

1Department of Computer Science, Tunghai University, Tunghai, Taiwan
2Soonchunhyang University, Asan, Republic of Korea

Received 26 August 2011; Accepted 26 August 2011

Copyright © 2011 Hindawi Publishing Corporation. 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.


In this paper, we propose a handover authentication mechanism, called the handover key management and authentication scheme (HaKMA for short), which as a three-layer authentication architecture is a new version of our previous work, the Diffie-Hellman-PKDS-based authentication method (DiHam for short) improving its key generation flow and adding a handover authentication scheme to respectively speed up the handover process and increase the security level for mobile stations (MSs). AAA server supported authentication is also enhanced by invoking an improved extensible authentication protocol (EAP). According to the analyses of this study the HaKMA can effectively and efficiently provide user authentication and balance data security and system performance during handover.