International Journal of Computer Science Issues

More than a traditional journal...

The Electronic mail is a fundamental communication model in globalization era. It is seen that every form of data registration or information needs electronic mail data. The use of e-mail itself cannot be separated from the abuse from some parties so it needs security form in e-mail communication. Communication security on mail server such as ZIMBRA mail server has been wellimplemented, such as the use of ssl certificate. But the security is still standard. So, when user and password has been found out by third party, e-mail content will be read easily (in cryptography technique it is called plaintext reading). On research that was conducted with pretty good privacy (PGP) method email communication security was focused on the e-mail content by encrypting mail text along with the attachment file. The research uses some software tools that were used in implementation at Zimbra mail server such as Cleopatra and Mozilla thunderbird. Result of research shows that PGP security is able to secure email content whether the text or the attachment, showing difference of attachment file size is bigger on PGP using and change mail header from the standard mail.