摘要： 提出并实现了一种采用指纹加密的、安全的、完整的电子邮件解决方案，包括指纹加密电子邮件服务器、指纹加密电子邮件客户端、指纹加密电子邮件用户管理和一个遵循X.509v3 规范的三级CA 证书认证体系等4 个部分。系统以用户指纹为身份鉴别依据，对邮件传输与存储的各个环节进行加密，具有全面的安全性保证。

关键词: 指纹识别；电子邮件；CA 证书

Abstract: An integrity and security e-mail system resolution is provided, which is encrypted by user finger mark. The system is composed of a finger mark encrypted e-mail server, a finger mark encrypted e-mail client, a finger mark encrypted e-mail user manager and a CA certificate system,which follows the X.509v3 criterion. User finger mark is the identify foundation in this system, which is used to encrypt all the information during the whole procedure of transmission and storage.

Key words: Finger mark distinguish; E-mail; CA certificate