Design And Implementation Of The Security Analysis Terminal Of WLAN

For the inherent characters of the wireless channel, The WLAN is not only threatened by the vulnerabilities of the TCP/IP protocol, but also by the weakness of the 802.11 protocol. It results serious challenges on security issues.The WLAN needs a security analysis system.So far, most security analysis systems are based on the intrusion detection. Compared with the intrusion detection, the active analysis methods based on testing of protocols are more safe for the WLAN. As a part of the WLAN security analysis system.,this paper focuses on the Design and implementation of the security analysis terminal of the WLANIn the paper, the research of the security of WLAN are addressed, including the Basic concepts, security technology and threats. At last, the paper emphasizes on research of the following three-parts1. The functional requirements for the terminalThis paper researchs how the active and passive analysis methods process. According to the deployment structure of the terminal, we design the funcitional requirements for the terminal. Including the interaction management and the implementation of the scripts,the statistical analysis and processing of the packets of WLAN and interfaces of devices etc.2. The implementation of the platform of the security analysis terminal Based on the PowerPC and the embedded Linux operation system, we design and implement the platform of the security analysis terminal. We use the TL-WN651G wireless network adapter as the RF module. It uses the madwifi as the software drivers and provides support for the following design3. The design and implementation of the software for the terminal The software of the terminal are divided into threee layers,including the system layer,the command library layer and the application layer. The command library provides supports for the command and script interpreting between terminals and sever. By extending the command library, it enhances the extendability of the software for the terminal. By loading the madwifi library, the network adapter module of the system layer provides the access interface that directly orients the hardware-driven layer. The application layer includes the connection control module, excution control module and command interpreter module.