【作者】 李莉； 张顺颐；

【Author】 LI Li, Zhang Shun-yi Research Center of Network, Nanjing University of Posts and Telecommunication, Nanjing 210003,China

【机构】 南京邮电学院网络信息技术研究中心；

【摘要】 宽带无线接入技术以其灵活的组网方式和投资省、建设快等特点,成为解决电信网“最后一公里”问题的绝佳方案,受到广泛青睐。安全方面IEEE 802.16标准对宽带无线接入系统提出了一整套安全体系方案,包括密钥管理协议(Privacy Key Management,or PKM)和加密算法等。IEEE 802.1x也是MAC层上基于端口的网络访问控制协议。本文首先简单介绍IEEE 802.16标准的这套安全体系方案以及IEEE 802.1x标准,通过对它们进行分析,发现将IEEE 802.1x中的一些机制合理地运用到IEEE 802.16上来,可以增强802.16安全体系的灵活性和可扩展性。文中将详细介绍这套新的扩展方案,并给出了一些性能分析。更多还原

【Abstract】 Broadband Wireless Access (BWA) is becoming a superexcellence solution to the 搇ast mile?problem with its much advantages. From the viewpoint of security, IEEE 802.16 put forward a suite of security schemes, including privacy key management (PKM) and cryptgraphic suites, etc. And IEEE 802.1x is a port-based network access control protocol for IEEE 802 infrastructure. In this paper, we make a simple introduction on security schemes of IEEE 802.16 and IEEE 802.1x, firstly. And then, through analyzing them, we found that security performance can be enhanced through applying some mechanismes of IEEE 802.1x into IEEE 802.16. So, we proposed a solution aim at this point, and in this paper, we describe the solution in detail.更多还原