Safe network transmission method and system

Abstract

A safety network transmitting method and its system providing a active defense technology for safe message transmitting in the network can be used in information safety field by setting up safe virtual special network to submit safety service for the data transmitting in the network. The present invention has comprehensively used the communication technology of "main-assistant" machines, the pseudo-random sequence creation technology, the rout-extension protocol and information control extension protocol, through the identification result of pseudo-random sequence message transmitted to each other between the safety routers to mark the safety of the system route and to pick up the safe pathes from the existing network as well as to submit them to the message transmitting.

Description

technical field

[0001] The invention belongs to network information security technology, and in particular relates to a secure network transmission method and system thereof. Background technique

[0002] The TCP / IP protocol is a network protocol standard used by the Internet. It is a protocol family including TCP protocol (Transport Control Protocol, Transmission Control Protocol), IP protocol (Internet Protocol) and other protocols. The protocol family is divided into the following four layers: network interface layer, network layer, transmission control layer, and application layer.

[0003] Currently, there are two main types of network security measures using TCP / IP technology and corresponding network security products: open type (such as data encryption) and passive defense type (such as firewall). Due to the characteristics of borderless, spreading and concealment of network attacks, all of these increase the difficulty of network security defense. The difficulty o...

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