Cross-network security data sharing method and system based on block chain

Abstract

The invention relates to a cross-network security data sharing method and system based on a block chain in an information transmission technology. The cross-network security data sharing method specifically comprises the following steps: enabling a block chain to receive a cross-domain request transaction to an intranet of an institution sent by a request application end proxy node; verifying whether the cross-domain request transaction conforms to a loaded verification rule or not, and sending a verification result to a request application end proxy node; if the verification result is yes, receiving meta-information of shared data sent by the application end proxy node to the intranet receiving end proxy node in a cross-network manner; storing the cross-domain request transaction and the meta-information to generate a new block; wherein the block link receives cross-domain request transactions and meta-information which are from the Internet application end agent node or the intranet application end agent node and send data to the intranet. Cross-gatekeeper data sharing records are stored through a block chain, rule verification is automatically executed through an intelligent contract, cross-domain safe sharing of automatic data is achieved in cooperation with a cross-network communication agent, the real-time performance is high, and the efficiency is high.

Description

technical field [0001] The present invention relates to Internet technology, in particular to a cross-network data transmission technology, in particular to a block chain-based cross-network security data sharing technology. Background technique [0002] At present, most organizations divide the network into different areas for network security, and use firewalls, gatekeepers and other devices to isolate logically or physically between different areas. Core business data is placed on the organization's intranet, and external business access is placed in the DMZ area. Each area is granted different degrees of trust. Access rights are set by isolating data and services to different network domains, and unified Domains have the same access rights. Among them, the gatekeeper is a network security device commonly used in the network of the organization. It cuts off the data communication between the internal network and the external network at the link layer, avoids the direct c...

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the disadvantages in the prior art that the security of shared data between an organization’s intranet and another organization’s intranet cannot be guaranteed, it is easy to leak data privacy, and the records of data sharing cannot be traced back, and provides a cross-network based on blockchain The secure data sharing system and method realize the credibility and traceability of data sharing, and use blockchain to save cross-gateway data sharing records

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