Classified and graded fitness health big data sharing system and method

Abstract

The invention provides a classification and grading fitness health big data sharing system and method. The system comprises a user management module, a data management module, an access control module, a data sharing module, a block chain and a distributed file system. The user management module is used for managing users; the data management module is used for encrypting by adopting different encryption levels according to the data sensitivity level; the access control module manages an access strategy of personal data generated by a data owner and realizes access control of the personal data at the same time, and the data sharing module is used for performing authority verification on a data visitor; the block link is used for storing an access control strategy and serving as an access control server; and the distributed file system is used for storing the encrypted personal data. According to the system disclosed by the invention, construction and optimization from data storage to data sharing are carried out based on the block chain, and auditing of the access control record is realized while data classification and grading privacy protection is ensured.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to a system and method for classifying and grading fitness and health big data sharing. Background technique [0002] The open sharing of data in various industries has promoted the construction of big data resources, but the data security and privacy protection issues in it need urgent attention, especially fitness and health data comes from many sources, the identity of data visitors is unpredictable, and the data contains sensitive information such as health and disease. Data breaches threaten the privacy of data owners. The main reasons for the leakage of fitness and health data include the following two aspects: on the one hand, data uploaded to the cloud storage center makes the data owner lose control over the data; on the other hand, the centralized access control of data has the problem of opaque judgment of authority , cannot ensure reliable enforcement of ac...

AI Technical Summary

Problems solved by technology

[0005] In terms of data storage, although the existing technology proposes a method of on-chain storage and off-chain storage, it does not consider how to encrypt and protect the original data off-chain and metadata on the chain, such as invention patents CN202011440686.8 and CN202010279827.6 Considering the storage of metadata on the chain, no consideration is given to data source identification, classification and hierarchical encryption of original data, and the invention patent CN202010134988.6 uses the distributed Namenode server as the accounting node of the blockchain, and one of the Namenode servers as the master node. It does not conform to the decentralization characteristics of the blockchain, and the tight coupling relationship between the blockchain and the big data platform in CN202010134988.6 is not conducive to the transformation of the existing big data platform using blockchain technology

In terms of access control, the distributed access control scheme implemented by the existing technology using blockchain has problems such as performance and security. For example, the invention patent CN202010152042.2 adds authorized users by modifying the access policy. Increased the burden of the blockchain. Although the invention patent CN202011505943.1 adopts a fine-grained access control strategy, if users need blockchain authorization every time they access resources, the efficiency of resource reading will be low.

In addition, the existing technology only optimizes the security of some modules in the big data sharing process, and lacks the guarantee for the security interaction of each module

Images