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WLAN Security Analysis and Research on Attack Methods of WLAN

Author: XuBo
Tutor: ChenJian
School: Xi'an University of Electronic Science and Technology
Course: Communication and Information System
Keywords: WLAN IEEE 802.11 Network Security WEP Dos attacks
CLC: TN925.93
Type: Master's thesis
Year: 2010
Downloads: 322
Quote: 1
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Abstract


With the release of the 1999 IEEE 802.11 standard , wireless local area network (WLAN) then has been developing rapidly . Compared to the traditional wired LAN , WLAN because of its convenient , flexible networking solutions , and in recent years has been widely used in various aspects of people's lives . However, due to the openness of the channel in the wireless LAN space , leading to its security problem is becoming increasingly prominent . This paper first introduces the wireless LAN architecture as well as the WLAN protocol - the IEEE 802.11 family of protocols , and analyze the similarities and differences between the IEEE 802.11a, IEEE 802.11b and IEEE 802.11g protocol . Then focus on the wireless LAN security mechanisms , involving WLAN physical layer , data link layer and network layer security technology , including WEP, WEP2, TKIP, IEEE 802.1X and other major technology , which focuses on the principle of the WEP algorithm . Then , through the study of the WEP , there are some serious security flaws ( such as key stream reuse authentication mechanism , etc.) found that the algorithm is a common method of attack to the wireless LAN analysis for these defects . Denial of Service (Dos) attacks after the most common WLAN attack - attack simulation and analysis of the characteristics of the attack . Ordinary Dos attacker easy user tracking found , so the end of this article to introduce an improved Dos attack characteristics is not easy to be found , but the attack is better ; After this article applies to no AP - network model The simulation results show that to achieve the attack purpose .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Radio relay communications,microwave communications > Wireless subscriber loop ( Radio Access Network)
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