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本文介绍两种发送安全电子邮件的原理和详细的使用方法。第1种方法是采用数字证书,数字证书用于标志网络通讯方的身份,可在各省数字认证中心申请。加密时采用收信方的数字证书的公钥来加密,解密时采用自己数字证书的私钥解密。第2种方法是利用软件PGP,这是一个能够产生公钥和私钥对的软件,将产生的密钥对导入Outlookexpress,再通过安全的渠道发送公钥给他人,他人就可以发送加密的电子邮件。
This article describes two principles for sending secure e-mail and how to use it in detail. The first method is the use of digital certificates, digital certificates used to identify the identity of the network communication parties, the digital certification center in the provinces apply. Encryption uses the public key of the recipient’s digital certificate to encrypt it, and decrypts it using its private key of the digital certificate. The second is to use the software PGP, a software that generates public and private key pairs, imports the generated key pair into Outlookexpress, and sends the public key to others via secure channels, allowing others to send encrypted electronic mail.