关键词: 不同安全等级网络数据交换, 网络安全隔离与信息交换技术, 网闸, 光闸, 数据单向摆渡, 光盘刻录摆渡

Abstract: In the era of rapid development of information technology, the network represented by the Internet has penetrated into all walks of life. While enjoying the convenience brought by the Internet, the security risks such as hackers' invasion, malicious code attack and virus infection threaten the security of various connected networks at all times. At present, the mainstream security protection products in the security market, such as firewall, anti-virus and access Intrusion detection is basically based on the feature base or intelligence base accumulated by the prophet's experience to match and respond to known security threats. In the face of the rapid development of "black production" and the constantly upgrading of network malicious attacks, these traditional defense methods can not ensure the network security in time and effectively. With the emergence and development of network security isolation and data security exchange technology, through the deployment and implementation of the one-way ferry system based on the network gate, optical gate, CD-ROM recording ferry and data, a scientific and compliant connection way is established between different security level networks, and the data security exchange is completed according to the application scene, which effectively solves the connection between different security level networks Data security exchange.

Key words: different security level network data exchange, network safe isolation and information exchange technology, gap, light gate, data one-way ferry