A public key cryptography-based security enhanced mail gateway with the mailing list function
Kazuki Katagishi, Tohru Asami, Y. Ebihara, Toshiharu Sugiyama, Kazuo Toraichi · 2003
When sending corporate secrets by electronic mail (e-mail), care must be taken to protect the security of the information against the various kinds of illicit manipulation that can occur on the Internet. We have developed a security enhanced mail gateway (SEMAIL) that ensures the privacy of e-mail messages without requiring users to install new software or learn complicated operating procedures. The SEMAIL system, in which an encryption program PGP (Pretty Good Privacy) is used, is available for both POP3-based Unix mails and PC-LAN-based ones.