基于链路层的WLAN加密与认证安全研究

随着网络安全的发展和无线局域网络的应用，WLAN的安全越来受到重视。文章分析了WLAN网络链路层的安全问题，结合无线局域网络安全标准802．1li，对WLAN网络中加密与认证技术中的SSID、MAC、WEP、WPA、WPA2等安全技术问题进行了介绍，并重点阐述了安全技术的应用选择方法，最终得出了在加密技术成本、安全需求成本都能兼顾的情况下应该选择WPA2加密技术来保障无线局域网络安全的结论。

Study of WLAN Encryption and Authentication Security based on the Link Layer

The development of the network security and the application of the wireless network significantly elevate our concern for WLAN security. Thus, in this paper the security problems with respect to the network link layer of WLAN are analyzed; meanwhile, combined with the wireless network security standard 802.11 I, the encryption in the network of WLAN technology and the safety problems concerning the authentication SSID, MAC, WEP, WPA, and WPA2 are illustrated and discussed. And focuses on the application of security technology selection, eventually come to the conclusion of the cost of encryption technology and security requirements can both should choose WPA2 encryption technology to protect the security of WLAN.