A Blockchain-Based System to Prevent Misuse of Managed Data Sources

Abstract

The invention discloses a system based on block chain to prevent the misuse of managed data sources, including a third-party data source, a dedicated virtual machine and a block chain system. The third-party data source is a data service hosted by a data owner in a third party; The blockchain system is jointly built by the data owner and the data authorized subject, and the data owner and the data authorized subject respectively run blockchain nodes on the blockchain system; the dedicated virtual machine is managed by the data owner, and further includes Virtual network adapter and dedicated network communication software, the dedicated network communication software is the only path for the data authorized subject to access the data source, the virtual network adapter is used for external network communication of the virtual machine, protocol analysis and message verification pass or interception . The present invention is used to realize credible supervision and recording of data owner's use of data sources hosted in a third party through virtual machine technology and block chain technology.

Description

technical field [0001] The invention belongs to the technical field of block chains, and in particular relates to a system for preventing the abuse of custody data sources based on block chains. Background technique [0002] At present, many data owners (companies, individuals, and other institutions) host their data and services on the cloud or third parties, or use data services provided by third parties. At the same time, data owners hope to open part of their own data query or use permissions to other data operators under the premise of controllability. However, since the data of the data owner is hosted by a third party, the data owner cannot simply and directly monitor the usage of the data. If the third party does not provide the corresponding functions of authority management and sub-account, the data owner must directly grant the data operator the login credentials with full authority of the data source, which poses a high security risk. [0003] Specifically, ass...

AI Technical Summary

Problems solved by technology

There are mainly the following problems in this implementation scenario: (1) It is difficult for subject B to prove the authenticity of its data access or operation records in data source X, because it may obtain data or perform operations beyond the scope of subject A’s permission, so it is difficult Obtain the trust of subject A; (2) When the data source involves information security, it is generally difficult for subject A to allow subject B to directly connect or use the data source to obtain part of the required data, but to submit all processes to subject A for review or agent, resulting in a reduction in the efficiency of data sharing

(3) The data obtained from data source X is easily copied by subject B to other places beyond the authorized use domain, resulting in data leakage

Regarding this possibility, subject A has no way to prevent it in advance except to pursue responsibility afterwards

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