Network information interaction method and network security system

Abstract

The invention relates to the field of computer security protection, in particular to a network information interaction method and a network security system. The network information interaction method comprises the following steps: firstly constructing a heterogeneous data collaboration server for an external network, restoring external network data displayed in different forms into information in an XML (Extensible Markup Language) format, screening and uniformizing, and translating the information in the XML format into Unicode; constructing a recognition and control system for an internal network, displaying the Unicode and control identification with variable color on a display, starting a photographing program and intercepting an image on the screen of the current display by a photography or videography device when the control identification is changed into specific color; and restoring an image file into XML information in a data recognition and control server by adopting an OCR (Optical Character Recognition) technology, and leading the XML information into a corresponding internal network database through a data interface. The network security system takes an image recognition technology as a core, internal and external network equipment is not physically connected, and the data is screened before leading and connection so as to realize real-time data leading and connection on the basis of true physical isolation.

Description

【Technical field】 [0001] The invention relates to the field of computer security protection, in particular to a network information interaction method and a network security system. 【Background technique】 [0002] The internal networks of enterprises, institutions, government departments, etc. must be physically isolated from external networks because they involve commercial secrets or sensitive data, but they often need to obtain real-time data from external networks. Existing physical isolation data exchange technology includes two aspects of technology gatekeeper and optical gate. [0003] Since 2000, my country has produced the security isolation gateway (GAP) (referred to as "gateway") technology, which solves the problem of safe isolation and moderately controllable data exchange between the government internal network and external network brought about by the rise of e-government affairs. According to requirements, gatekeeper technology is based on two-way, that is, t...

AI Technical Summary

Problems solved by technology

[0005] There are two problems in the above one-way data transmission method: one is the problem of physical connection

With the physical connection established by this technology, the physical channel established in an instant is transparent to the application program, and the device does not perform fine and effective screening of the data. In theory, there is a possibility that hackers control the data flow, resulting in insecure incoming data. Potential for data to have catastrophic consequences

Images