基于IP协议的安全机制的研究及应用

Ｉｎｔｅｒｎｅｔ的安全问题越来越受到人们的关注，目前有许多协议用来实现Ｉｎｔｅｒｎｅｔ的安全。本文介绍了一种应用基础较为广泛的安全机制－基于ＩＰ的安全机制，这是一种基于ＩＰ可选报头的灵活、可伸缩的机制，本文还涉及与这种安全机制密切相关的密钥管理及其他实现上的问题。文章末尾，还简单地介绍了这种安全机制在ＶＰＮ中的实现。

A DISCUSSION ABOUT THE IP BASED SECURITY MECHANISM AND ITS IMPLEMENTATION

Network security has attracted more and more attention in today's Internet forum,many protocols have been designed to serve as the solutions to this issue. This article provides readers of interest with a relatively more general security mechanism IP security mechanism, which is based on the IP optional headers ,and also with the related key management and implementation issues.And at the end of this article,an implementation used in the VPN is briefly discussed.