Open VPN SSL-based Research And Application

The computer network technologies have rapidly developed, the securities of the information in the network are more and more important.。 The study of VPN become more and more. VPN English full name is "Virtual Private Network". Is a kind of connection between enterprises and medium enterprises of private network communication methods. It through the special encryption method and virtual technology, build a safe, stable tunnel. Through this tunnel, in different places of the two or more enterprise Intranet between the lines of communication in a ready-made, as laid a line, realizing the same communication between users. In the complex networks, VPN is safe, convenient and save the economic cost.OpenVPN is a Open-source software, it is typical of the SSL VPN. It use a lot OpenSSL encryption library, SSLv3/TLSv1agreement, to negotiate encryption key tunnel. It supports a variety of operating systems, can running in Linux, Windows2000/xp/vista.Based on the introduction of VPN and the theoretical knowledge OpenVPN, according to the actual needs of the users, designed three network security plan:Based on the key and authentication technology of OpenVPN solution, Based on Username/Password validation of the OpenVPN solution and Based on the third-party encryption algorithm of the OpenVPN solution. Use Agent technology, design a model which base on the three OpenVPN safety plan.In this paper, the implementation and application OpenVPN have deep researched. Use in plan which is different from traditional way of Username/Password validation. Introducing engine mechanism on the search OpenVPN encryption methods were improved, realize custom algorithm. And use Agent technology, combined the network security with artificial intelligence technology, to realize intelligent security solutions. These thoughts may introduce other similar applications, and to others study has certain reference value.