摘要： 分析了HFC结构的Cable 网的特点并指出其存在的主要安全问题。针对这些安全问题，介绍了DOCSIS(Data Over Cable Service Interface Specification )中BPI+（Baseline Privacy Interface plus）采用了哪些保护措施以及仍然存在的安全漏洞。

关键词: DOCSIS, BPI+, 证书

Abstract: This paper addresses the security issues about cable over HFC according to its structure character,and the security policies offered by DOCSIS are introduced, finally we suggest some security leaks still remained.

中图分类号: 

• TP393.08