Blockchain-based data chain information flow control system and method

Abstract

The invention belongs to the technical field of transmission control procedures, such as data chain level control procedures, and discloses a blockchain-based data chain information flow control system and method; the invention is based on a weighted PBFT algorithm, which can target the roles of different entities in the data chain The distribution of weights fully considers the importance of the different roles of the data chain and their impact on consistency, and has a high degree of flexibility; based on the access control scheme of the blockchain, the consistency and non-tamperability of the blockchain guarantee the contract Self-credibility, smart contracts can be automatically executed, combined with the characteristics of the blockchain, to ensure the credibility of the access strategy output by the contract, thereby effectively ensuring data security; combining attribute encryption with symmetric encryption, using symmetric The encryption scheme encrypts the data and uses the attribute encryption algorithm to encrypt the symmetric key, which ensures the high efficiency of encryption and supports flexible access control.

Description

technical field [0001] The invention belongs to the technical field of transmission control procedures, such as data link level control procedures, and in particular relates to a block chain-based data link information flow control system and method, and a computer. Background technique [0002] At present, the existing technology commonly used in the industry is as follows: the data link (Tactical Data Link) was proposed in the 1950s, which is a real-time, accurate, automatic, A data communication system or information transmission system for confidential transmission. It is of great significance to shorten the reaction time and strengthen the cooperation of various combat platforms. Since it was put forward, it has been valued, researched and deployed by various countries. All previous local wars in modern times have shown that the future war will be a three-dimensional war integrating sea, land, air, space, and electricity. The strength of surveillance and reconnaissan...

AI Technical Summary

Problems solved by technology

[0003] The data link itself cannot guarantee the coordination and consistency of decision-making of each combat platform, so it cannot meet the requirements of coordinated operations in modern warfare, especially the unified response to dynamic changes in warfare; Automation and intelligence cannot guarantee the credibility of decision-making

3. The automatic flow of information on the data chain cannot be realized; 4. There is no effective access control scheme for the information transmitted on the data chain

[0005] (1) The existing data link mainly has the problem that the data link itself cannot guarantee the coordination and consistency of decision-making of each combat platform, and cannot meet the requirements of coordinated operations in modern warfare, resulting in information asymmetry of each combat platform, inability to effectively cooperate with each other, and poor coordination

[0006] (2) The existing data link relies on the command platform for operational decision-making, which cannot realize the automation and intelligence of strategic decision-making for each combat platform. Effective response, information observation, positioning, decision-making, and response process are long, and the real-time performance of decision-making is poor

[0007] (3) The existing data link cannot realize the automatic flow of information on the data link, so the combat information cannot be quickly and effectively transmitted to the information demander, resulting in the inability to make timely and effective decisions, respond to changes in the battlefield, and make decisions. Poor real-time performance

[0008] (4) The existing data chain lacks an effective access control scheme for the information transmitted on the data chain, so it faces the threat of data leakage, and the data privacy security is poor

[0013] It solves the problems of poor real-time dynamic adaptive change capability, poor cooperative combat capability and poor cross-domain combat capability existing in the existing data link, and solves extremely challenging problems such as automation and credibility of information transmission in the process of coordinated combat. Establish an integrated data link that supports the collaboration of multiple data links

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