移动无线城域网安全机制分析

Analysis to Security Schemes of M-WMAN

为完善移动无线城域网的安全机制,文章从四个方面概述移动无线城域网标准IEEE802.16e的网络安全子层,阐述其相对802.16d增加的功能,详细分析授权、密钥管理方案编排的完备性,加密认证算法选择的健壮性,以及它们如何抵御现今已知的恶意无线网络攻击并指出其中的瑕疵。

Aimed to catch on the construction and working mechanism of mobile wireless metropolitan area networks and then to consummate it, the network security sub-layer of IEEE 802.16e was summarized as four module, the new function compared with 802.16d was outlined. The encryption and authentication algorithms were analyzed whether robust or not and the completion of the schemes of authorization and traffic encryption key management was discussed. This paper also analyzed the network security sub-layer how to defend the hostility attack from wireless network and pointed its potential flaw.