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首页> 外文期刊>Wireless personal communications: An Internaional Journal >SAEW: A Security Assessment and Enhancement System of Wireless Local Area Networks (WLANs)
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SAEW: A Security Assessment and Enhancement System of Wireless Local Area Networks (WLANs)

机译：SAEW：无线局域网（WLAN）的安全评估和增强系统

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摘要

Aiming at increasingly serious security problems of wireless local area networks (WLANs), this paper analyzes and studies the different security attacks and threats according to the four layer network architecture of WLAN. A WLAN security assessment and enhancement system called SAEW is proposed, which comprises two subsystems of security assessment system of WLAN (SAW) and security enhancement system of WLAN (SEW). The SAW is based on fuzzy logic that combines layering analysis and relevance analysis. The security vulnerabilities of PHY and MAC layer, key management layer and identity authentication layer and relevance of the four layers are analyzed. The security index system of WLAN, fuzzy set and rule base are built based on the WLAN security analysis of the above four layers. Moreover, according to the principles of fuzzy logic, the security level of WLAN is acquired through fuzzy reasoning. Towards the WLAN with low security level, the security enhancement of WLAN is processed. The SEW builds the trusted WLAN to improve the security level of WLAN, which is based on trusted network connect (TNC). By introducing different roles in TNC, such as a metadata access point client defending WPA/WPA2 brute forcer, the security enhancement and defense mechanisms are realized. The results of case study show that the security level is promoted by trusted WLAN.
机译：针对无线局域网（WLAN）日益严重的安全问题，本文根据WLAN的四层网络架构，对不同的安全攻击和威胁进行了分析和研究。提出了一种称为SAEW的WLAN安全评估和增强系统，该系统包括WLAN安全评估系统（SAW）和WLAN安全增强系统（SEW）两个子系统。 SAW基于模糊逻辑，结合了层次分析和相关性分析。分析了PHY和MAC层，密钥管理层和身份认证层的安全漏洞以及这四个层的相关性。基于以上四层的WLAN安全分析，建立了WLAN的安全指标体系，模糊集和规则库。此外，根据模糊逻辑原理，通过模糊推理获得无线局域网的安全级别。对于低安全级别的WLAN，需要处理WLAN的安全性增强。 SEW基于受信任的网络连接（TNC）构建受信任的WLAN，以提高WLAN的安全级别。通过在TNC中引入不同的角色，例如保护WPA / WPA2蛮力攻击的元数据访问点客户端，可以实现安全性增强和防御机制。案例研究结果表明，受信任的WLAN可以提高安全级别。

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