Data security system based on block chain and data security processing method

Abstract

The embodiment of the invention provides a data security system based on a block chain and a data security processing method. The system comprises a checking unit, a security calculation unit and a data processing unit, the checking unit is used for receiving a data processing request sent by a data demand terminal, checking a preset information type according to the data processing request, and sending the data processing request to the data processing unit and the security calculation unit after the checking is passed; the data processing unit is used for obtaining corresponding demand data from the distributed storage management system according to the data processing request and sending the demand data to the security calculation unit; the security calculation unit is used for processing the demand data according to the data processing request, obtaining processing information, sending the processing information to the checking unit for checking, and sending the processing information to the data demand terminal after the checking is passed, thereby realizing the safe use of the shared data in a safe computing environment, and ensuring the safety and controllability of the data provider on the source data.

Description

technical field [0001] The present invention relates to the technical field of block chains, in particular to a data security system and data security processing method based on block chains. Background technique [0002] The blockchain access control process based on token authorization realizes the security, controllability and comprehensive supervision of data sharing rights, which is mainly the control of sharing rights, but once the data is shared, it loses its unique value, and the current data privacy protection and The data security mechanism is not perfect, which leads to the limitation of data sharing and circulation process. Mainly faced with the following problems: [0003] Data control right issue: After data sharing, the data owner loses the control right of the data, cannot intervene and monitor the use of the shared data, and it is difficult to audit the behavior of data use, for example, the data is easily copied, resulting in sharing The expansion of the ...

AI Technical Summary

Problems solved by technology

[0003] Data control right issue: After data sharing, the data owner loses the control right of the data, cannot intervene and monitor the use of the shared data, and it is difficult to audit the behavior of data use, for example, the data is easily copied, resulting in sharing Expansion of scope, out of control

The problem of data control rights leads to the unwillingness of the data source owner to open and share the data, and the data cannot be shared and circulated

[0004] Data security computing issues: data sharing is to obtain valuable results in subsequent processing, but in the process of data sharing, there is a lack of a secure computing environment, and data may be illegally stolen during processing, or after calculation, The calculation results will still cause the leakage of sensitive information of the source data

[0005] Data privacy protection issues: The owner of the source data is unwilling to share the data due to privacy considerations. Even if the shared data is desensitized data, in many cases the value of the desensitized data is also discounted, limiting data sharing application scenarios

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