Anti-attack access control method, system and device based on block chain and medium

Abstract

The invention discloses an anti-attack access control method, system and device based on a block chain and a medium, and the method comprises the steps that a data owner encrypts original medical data and uploads the data to a distributed interstellar file system; metadata is uploaded to the block chain through a data generation mechanism, and the metadata comprises the hash value information and data signature information; the data user sends an authorization request to obtain an access right to the original medical data of the data owner; the authorized data user obtains the encrypted original medical data from the block chain; and the encrypted original medical data is decrypted to obtain the original medical data, and the integrity of the original medical data is verified. The method can realize safe and efficient medical data sharing ecology, and can be widely applied to the technical field of block chains.

Description

technical field [0001] The invention relates to the technical field of block chains, in particular to a block chain-based anti-attack access control method, system, device and medium. Background technique [0002] Since the development of blockchain technology, many distributed applications based on blockchain have sprung up rapidly, such as blockchain finance, blockchain government affairs platform, blockchain traceability system, etc. Similarly, medical data distributed Secure sharing is also one of its important application scenarios. From the perspective of attack resistance, the traditional centralized medical data sharing system is vulnerable to hacker attacks, internal leaks and tampering due to its centralized nature, resulting in the insecurity of the data owner's private data. The existing blockchain-based distributed medical data sharing system is still in the early stages of development. Although many scholars have proposed a large number of solutions, there is ...

AI Technical Summary

Problems solved by technology

From the perspective of attack resistance, the traditional centralized medical data sharing system is vulnerable to hacker attacks, internal leaks and tampering due to its centralized nature, resulting in the insecurity of the data owner's private data

The existing blockchain-based distributed medical data sharing system is still in the early stages of development. Although many scholars have proposed a large number of solutions, there is still much room for improvement.

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