One-way data exchange device and method for physical isolation among networks at different security levels

Abstract

The invention discloses a one-way data exchange device and method for physical isolation among networks at different security levels. The device comprises an intranet processing unit and an extranet processing unit, wherein a transition unit for data exchange is arranged between the intranet processing unit and the extranet processing unit and comprises an intranet optical drive group (namely a burn drive), an extranet optical drive group (namely a read-only drive) and a manipulator assembly. The one-way data exchange device does not need manual intervention and can implement data transfer by virtue of non-direct connection of the manipulator assembly, the specific drive, a control system and a disc shredder (according to selection) so as to achieve the true physical isolation. The one-way data exchange device and method adopt a simple principle, are safe and reliable, prevent various invasive bugs from hiding fundamentally, save time for manual data exchange by disc burning, conveniently implement the safe data exchange, and bring convenience for safe data storage and exchange among secret departments of the Chinese People's Liberation Army and China.

Description

technical field [0001] The invention relates to a one-way data exchange device and method for physical isolation between networks of different security levels. Background technique [0002] In data communication, networks with different security levels can be between internal networks and external networks, or between public networks and private networks, and between confidential networks and non-secure networks. In order to realize and ensure the security of the network data exchange process, the safest way is to separate physically and realize "physical isolation" between different levels of networks. [0003] Nowadays, in the existing technology, there are usually optical fiber one-way transmission and gatekeepers: optical fiber one-way transmission means that the data signal to be sent is converted from an electrical signal to an optical signal, and then transmitted to the receiver through an optical fiber, such as figure 1 , this technology can refer to the patent docu...

AI Technical Summary

Problems solved by technology

Although manual exchange is safe and reliable, the efficiency of manual data exchange is low, and there are many human factors. There is no systematic automatic record (log tracking) during the exchange process, and the disc media cannot be safely traced back before, during, and after the use process.

With the expansion of the amount of data, the manual method has obviously become the bottleneck of many businesses

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