【作者】 蔡建楠； 酆广增；

【Author】 CAI Jiannan FENG Guangzheng Wu Meng(Department of Communication Engineering, Nanjing University of Posts and Telecommunication,Nanjing, 210003, China)

【机构】 南京邮电学院通信工程系；

【摘要】 LMDS是一种宽带固定无线接入技术,无线网络的开放性使得通信信息容易被截取窃听,因此安全问题十分重要。本文从ATM层的角度对LMDS系统的安全进行考虑,根据ATM论坛有关ATM安全的相关标准,描述了ATM用户平面的安全服务原理以及连接的建立,并分析了LMDS高速对安全问题的影响。最后提出了减小这种不利影响的方案一并行加密,并在C6000下进行了实现。更多还原

【Abstract】 Local Multipoint Distribution Service is a kind of wireless broadband communications system. Wireless networks wide open to hacker. Eavesdropping becomes very easy, so the problem of security is very important. This paper considers the security of LMDS from ATM layer. According to the recent ATM Forum contributions about security, this paper describes the principle of security service on user plane and how to establish a security association. Two problems are discussed and an improved encryption (multi-channel DES) is put forward to solve these problems. At last, Multi-channel DES is implemented in C6000.更多还原