内外网信息交换模式设计与实现

随着病毒和木马的大量涌现，给科研机构涉密信息系统带来更多的隐患，其安全管理和维护更困难。尤其是内外网的信息交换，必须考虑科研机构与外界大量科技信息交流的需要，因此安全的信息安全交换模式成为研究的重点，也是涉密系统在科研机构能有效发挥重要作用的关键。文中针对科研机构的特点，研究了内外信息交换的模式，并在实际应用中得到验证。

Design of Mechanism for Information Exchange between Intranet and Internet

The appearance of various viruses has brought many problems in the institute of science. This makes security management even more diffcult. In particular, there is much information exchange between the Intranet and Internet. So the mechanism for secure information exchange is more important, and would be the key for the Intranet application. This paper discusses the mechanism for secure information exchange in the institute, including its application in the institute. Experiment has proved its effectiveness.