摘要
本文分析了电子邮件ＳＭＴＰ、ＰＯＰ３ 协议、ＰＥＭ 标准中存在的安全性问题，应用密码技术构建了ＰＥＭ
The security problems of E mail Systems and firewall technology widely used nowadays is researched into,SMTP and POP3 protocols and PEM standard is analysed Based on these,applied with cryptography technique such as data encryption,digital signature,and certificate based key management,the certification authority is set up
出处
《通信学报》
EI
CSCD
北大核心
1999年第12期43-48,共6页
Journal on Communications
基金
国家"863计划基金!(批准号:863-306-Z-10-2B)
东南大学移动通信国家重点实验室开放基金
