Method and device for cross-network safe transmission

Abstract

The invention relates to a method and a device for cross-network safe transmission. The method comprises receiving data flow from a network Na and selecting a data packet with an expanded-name appointed; partitioning and organizing data according to content identification and order identification of the data packet; converting the data to a corresponding character string; converting the character string to a two-dimension code pattern and displaying the two-dimension code pattern on a display screen; scanning and receiving the two-dimension code by a scan head, analyzing the two-dimension code to be the corresponding character string, converting the character string into the data packet with the expanded-name, the content identification and the order identification and sending the data packet to a network Nb. According to the method and the device for the cross-network safe transmission, two sides offering communication adopt an anti-diffusion wireless-connected communicating method and adopt a self-defined communicating protocol to achieve interconnection and intercommunication of two independent networks instead of adopting a traditional public wireless network communication protocol, and therefore independence of the two communicating networks can be guaranteed completely , the shortage that the traditional network communication protocol is lack of safety is overcome and safety factors of internet communication are greatly increased.

Description

technical field [0001] The present invention relates to the field of network communication, and more specifically, the present invention relates to a secure transmission method of network data and transmission equipment thereof. Background technique [0002] In the past one or two decades, the application of information and communication technology has spread to all corners of the world and penetrated into all aspects of people's production and life. As the cornerstone of information technology application, the network has been widely popular among enterprises, government agencies, schools and individuals. Communication between networks has become a basic tool for business transactions and information exchange between institutions and individuals. It can be said that we have entered or are about to enter an all-round information society. [0003] The realization of existing network communication is based on a specific network communication protocol platform. It can be said ...

AI Technical Summary

Problems solved by technology

[0004] When connecting two independent networks that need to communicate with each other, regardless of wired network communication or wireless network communication, most traditional physical links need to be implemented using routing devices such as switches with strong information diffusion, and both parties to the communication are based on the globally popular TCP \IP network communication protocol, in this way, the disadvantage of traditional physical links is that the security guarantee is not enough, or in other words: the traditional strong diffusion connection method plus the universal communication protocol platform cannot fully guarantee the network security of communication users. Independence and privacy; even though traditional communication parties use various firewall technologies to ensure communication security, since both communication parties, intermediate switches or routing devices are widely interconnected and use a common network communication protocol platform, the so-called Dao Gao As the hacker technology becomes more and more advanced and developed, various firewall technologies that share the network communication protocol platform can only be hard to guard against.

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