Cross-domain access control method based on block chain

Abstract

The invention belongs to the technical field of information security, and particularly relates to a cross-domain access control method based on a block chain. According to more rigorous authority verification logic and optimization of a capability token structure, more fine-grained and safer access control is provided, a token counterfeiting behavior can be prevented according to token processing in a token generation stage, man-in-the-middle attack can be resisted according to dynamic verification, a system is prevented from being subjected to flooding attack by malicious nodes, and the security of the system is improved. The behavior of system abnormity caused by a single-point fault is prevented, and all nodes can synchronize states by accessing transactions and intelligent contracts in the block chain based on the transparency and public characteristics of the block chain.

Description

technical field [0001] The invention belongs to the technical field of information security, and in particular relates to a blockchain-based cross-domain access control method. Background technique [0002] At present, the Internet of Things environment has shown characteristics of large-scale, distributed, dynamic, and heterogeneous with the development of technology. Traditional identity authentication and access control relying on trusted third parties have many security threats, such as: privacy issues , lack of transparency, etc., single-domain data sharing and information interaction can no longer meet people's needs. How to overcome this limitation and provide efficient information services between multiple domains has become an urgent problem to be solved. [0003] Blockchain technology is increasingly valued and adopted by countries and companies around the world. Blockchain is currently setting off a technological revolution in many industries such as finance, medi...

AI Technical Summary

Problems solved by technology

[0002] At present, the Internet of Things environment has shown characteristics of large-scale, distributed, dynamic, and heterogeneous with the development of technology. Traditional identity authentication and access control relying on trusted third parties have many security threats, such as: privacy issues , lack of transparency, etc., single-domain data sharing and information interaction can no longer meet people's needs. How to overcome this limitation and provide efficient information services between multiple domains has become an urgent problem to be solved

Images