Các bài báo công bố quốc tế

Dinh-Thuc Nguyen1; Ngoc-Bao Tran2; Minh-Duc Nguyen-Ho3 (2008). A solution for defending against denial of service attack on wireless lan. Mobile and wireless networks security. Proceedings of the MWNS 2008 Workshop, Singapore. World Scientific Publishing Co. Pte. Ltd, 2008 , pp 67-77.

1University of Natural Science, Vietnam National, 227 Nguyen Van Cu Street, District 5, HCM City, Vietnam.
2Faculty of Mathematics and Informatics, HCM City University of Pedagogy, 280 An Duong Vuong Street, District 5, HCM City, Vietnam.
3Faculty of Information Technology, Ton Duc Thang University, 98 Ngo Tat To Street, Binh Thanh District, HCM City, Vietnam.

Abstract. Wireless local area networks (WLAN) have come into more popular, the security over wireless network is becoming a significant issue. Together with its higher and higher popularity, the internet has also shown more and more weakness of wireless protocols that leads to attacks from “professional” or “amateur” hackers. There are many improving efforts the security of wireless network (from IEEE 802.11 standard protocol to 802.11i building on top of the IEEE 802.1X standard). However, these cannot defend WLAN from denial of service (DoS) attacks. In this paper, we focus on analyzing denial of service attacks on 802.11-based protocols, especially de-authentication and disassociation attacks that called “dis'ing” attacks. There are some of approaches proposed to prevent kind of these attacks by authenticating management frames. Based on simple, efficient and lower cost of deployment on currently 802.11 protocol, we propose a solution for defending against “dis'sing” attack using letter-envelop protocol to authenticate management frames.