A method and device for exporting files from a high-sensitivity network to a low-sensitivity network

Abstract

The embodiment of the invention provides a method and device for exporting a file from a high sensitive network to a low sensitive network based on information coding. The method includes the following steps: reading an additional information record of a file to be exported, querying a preset information coding replacement table, and if values of all legal verification data items in the record exist in the information coding replacement table, replacing the value of a specified replacement data item with a corresponding code; and if not, prohibiting exporting the file to be exported; detectingwhether an additional mark of the file to be exported is a preset exportable mark, and if the mark is the exportable mark, stripping the mark and restoring the file to be exported to a plaintext file; and otherwise, prohibiting exporting the file to be exported; and transmitting the plaintext file from an exit of the high sensitive network to an entrance of the low sensitive network in a one-waymanner. Thereby, on the basis of ensuring the security and confidentiality of information, the one-way output of non-sensitive data from the high sensitive network to the low sensitive network can beachieved, applications of informatization can be facilitated, and the security level of exporting the files and other information can be improved.

Description

technical field [0001] The invention belongs to the technical field of information security, and in particular relates to a method and a device for exporting files from a high-sensitivity network to a low-sensitivity network. Background technique [0002] After entering the information age, network applications have penetrated more and more deeply into key fields such as government, national defense, and finance. However, in response to the increasing hacker intrusions, virus attacks, and leaks, many organizations such as the government, the military, and enterprises have taken many measures and even isolated them to ensure the security of their highly sensitive information, especially confidential information. Their internal networks Not directly or indirectly connected to the Internet and other public information networks. Although isolation can meet the security and confidentiality requirements of sensitive information, especially information in confidential information ...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiments of the present invention provide a method and device for exporting files from a high-sensitivity network to a low-sensitivity network based on information coding, to solve the problem of backward technical means in exporting files from a high-sensitivity network to a low-sensitivity network in the prior art. Technical problems of cumbersome operation and low efficiency

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