Network Information Encryption Technology and Security Transmission of E-mail

It is known that network technology is the hot direction in the domain of computer. The rapid network brings great effect in human life. “ The network times is the Advanced Information Times”, more and more people have the point of view, even some think that network is computer. But on the other side, with the development of network, its security becomes more important and is focused. The article mainly introduces the theory of Encryption and arithmetic.