期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2014
卷号：2
期号：4
出版社：S&S Publications
摘要：The Email messaging is one of the most popular uses of the internet & the multiple internet user can exchange messages within s hort span of time using To (O riginal recipient), Cc (Carbon copy) a nd /or Bcc (Blind Carbon C opy) Facilities . Thus Email becomes the most popular application on the internet. It is also by far the most popular application on intra company networks. Secur ing e - mail is something that must be done by the users themselves, because they are the ones who will actually be sending & rece i ving the messages. However, security administrators can gives user the tools they need to be fighting the problems. S /MIME, PGP &PEM are very popular methods of encrypting e - mail .Email users need to be educated about security though because the popularity & functionality of e - mail is only going to increase.
关键词：PGP; PEM; S/MIME; SMTP; Cryptographic function
