摘要
从计算机网络的安全技术出发，分析了Ｉｎｔｒａｎｅｔ网所面临的安全性问题，介绍了加密、信息完整性、鉴别交换、确认及访问控制等５种基本安全技术，并结合实例予以说明。
This paper analyses various security threats confronted by lntranet and provides several kinds of main technologies to guarantee Intranet security; It also demonstrates how to use these technologies.
