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Báo cáo hóa học: " Research Article Design and Implementation of a Lightweight Security Model to Prevent IEEE 802.11 Wireless DoS Attacks"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Design and Implementation of a Lightweight Security Model to Prevent IEEE 802.11 Wireless DoS Attacks | Hindawi Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2011 Article ID 105675 16 pages doi 10.1155 2011 105675 Research Article Design and Implementation of a Lightweight Security Model to Prevent IEEE 802.11 Wireless DoS Attacks Mina Malekzadeh Abdul Azim Abdul Ghani and Shamala Subramaniam Faculty of Computer Science and Information Technology Universiti ofPutra Malaysia 43400 UPM Serdang Selangor Malaysia Correspondence should be addressed to Mina Malekzadeh minarz@gmail.com Received 9 August 2010 Revised 29 November 2010 Accepted 20 January 2011 Academic Editor I. Moerman Copyright 2011 Mina Malekzadeh 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 protection offered by IEEE 802.11 security protocols such as WEP WPA and WPA2 does not govern wireless control frames. The control frames are transmitted in clear-text form and there is no way to verify their validity by the recipients. The flaw of control frames can be exploited by attackers to carry out DoS attacks and directly disrupt the availability of the wireless networks. In this work focusing on resource limitation in the wireless networks a new lightweight noncryptographic security solution is proposed to prevent wireless DoS attacks. In order to prove the ability of the proposed model and quantify its performance and capabilities a simulation topology is developed and extensive experiments are carried out. Based on the acquired results it is concluded that the model successfully prevents wireless DoS attacks while the security cost is not remarkable compared to the model achievements. 1. Introduction Wireless control frames facilitate and complement delivery of data frames. These frames include request-to-send RTS clear-to-send CTS acknowledgment ACK and contention-free control frames which are