期刊名称：International Journal of Computer Science and Network Security
印刷版ISSN：1738-7906
出版年度：2008
卷号：8
期号：5
页码：264-271
出版社：International Journal of Computer Science and Network Security
摘要：Wired Equivalent Privacy (WEP) protocol was adopted to protect authorized users from unauthorized access and eavesdropping in the IEEE 802.11 wireless LANs (WLAN). However, it had been proven that the WEP protocol fails to provide data confidentiality and authentication [2, 14]. The WEP provides encrypted communication using an encryption key between the client station and Access point (AP). All client stations and APs on a network use the same key to encrypt and decrypt data. The key resides on both the client station and the AP [14]. The above rendered the WEP protocol naked to major forms of attack. Thus in this paper a keyed-message authentication code aimed at preventing an intruder from tampering with packets in transit is proposed, with a revised authentication scheme to avoid authentication spoofing and reduce replay attacks. We also employed private IV scheme alongside the use of day and session keys that counters several attacks. The proposed WEP was tested with HTTPNet and TelnetNet with each client having their respective sessions. Finally, simulation methodology is presented, with the simulated results provided. Our studies show that the enhanced model provides better data confidentiality.
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