摘要： 首先分析了电子邮件所面临的安全威胁,然后介绍了保证电子邮件安全的加密和数字签名的实现原理和过程。并结合ＯｕｔｌｏｏｋＥｘｐｒｅｓｓ中提供的加密与数字签名功能，简要介绍了安全电子邮件的实现过程。

关键词: 加密, 数字签名, 数字标识

Abstract: The security problems of the E-mail is analyzed in this paper, and then the theory of E-mail encryption and digital signaturewhich ensured the security of mail are introduced. The implement procedure of security E-mail is also addressed in terms of the functions ofOutlook Express.

中图分类号: 

• TP393.08