Intranet-extranet physical isolation data exchange method based on QR (quick response) code

Abstract

The invention discloses an intranet-extranet physical isolation data exchange method based on QR (quick response) code. The method of exchanging data from an intranet to an extranet includes: firstly, extracting data to be exchanged in an intranet database, encoding the data to generate a plurality of QR code images, and regularly arranging and displaying the images on a display screen of intranet system terminal equipment in a form of QR code matrix; secondly, using a camera of extranet system terminal equipment to acquire the matrix-type irregularly arranged QR code images displayed on the display screen of the intranet system terminal equipment; and thirdly decoding acquired QR code sequences by parallel algorithm on the extranet system terminal equipment so as to obtain exchanged data. The method has the advantages that such defects as high precise and need for labor in existing traditional exchange methods of gateway copying or USB (universal serial bus) flash drive copying, the method is high in reliability, high in safety and low in operation and maintenance cost, exchange time is shortened, and efficiency in intranet-extranet data exchange is improved.

Description

technical field [0001] The invention belongs to the technical field of information security, and in particular relates to a two-dimensional code-based physical isolation data exchange method for internal and external networks. Background technique [0002] With the development of society, more and more attention has been paid to the informatization construction of various industries. In the process of informatization construction, for security reasons, government or enterprise networks often require the isolation of internal and external networks, but the exchange of external data is unavoidable and very important. The traditional method is to use the gatekeeper for data exchange, although this can improve automation, but the construction cost is relatively high; and the way of generating intermediate files or copying them with a USB flash drive greatly reduces work efficiency, especially when real-time data is required In the case of exchange, it will affect the normal ope...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a physical isolation data exchange method for internal and external networks based on two-dimensional codes in view of the defects of high cost, manual labor, low real-time performance, and low exchange efficiency in the existing internal and external network physical isolation data exchange methods , to improve the security and efficiency of data exchange between internal and external networks

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