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Data sharing method and device, equipment and storage medium

A data sharing and data party technology, applied in the field of data processing, can solve problems such as inability to effectively realize data sharing, and achieve the effect of ensuring security and privacy

Pending Publication Date: 2022-03-01
CHINA UNIONPAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For different industries and different organizations, it is impossible to effectively realize data sharing without disclosing their own data

Method used

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  • Data sharing method and device, equipment and storage medium
  • Data sharing method and device, equipment and storage medium
  • Data sharing method and device, equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0094] Embodiment 1. When the query request includes the target encrypted sample ID and the public key of the inquiring party, if there is a reference encrypted sample ID matching the target encrypted sample ID in the data party system, at least one sample corresponding to the reference encrypted sample ID will be referenced. attributes as response sample attributes.

[0095] If there is no reference encrypted sample ID matching the target encrypted sample ID in the data cube system, in a possible implementation, the data cube system generates a random sequence and uses the random sequence as a response sample attribute.

[0096] In another possible implementation, the data cube system generates a random number, which is the probability of generating a random sequence, and then compares the random number with a preset threshold. If the random number is greater than the preset threshold, then the data cube system Generate a random sequence and use this random sequence as a resp...

Embodiment approach 2

[0108] Embodiment 2: When the query request includes the encrypted sample ID, the public key of the querying party, and the target attribute category, if there is a reference encrypted sample ID that matches the target encrypted sample ID in the data party system, then the reference encrypted sample ID will be Among at least one sample attribute of , the sample attribute matching the target attribute category is used as the response sample attribute.

[0109] If there is no reference encrypted sample ID matching the target encrypted sample ID in the data cube system, in a possible implementation, the data cube system generates a random sequence and uses the random sequence as a response sample attribute.

[0110] In another possible implementation, the data cube system generates a random number, which is the probability of generating a random sequence, and then compares the random number with a preset threshold. If the random number is greater than the preset threshold, then th...

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Abstract

The embodiment of the invention provides a data sharing method and device, equipment and a storage medium, and relates to the technical field of data processing, and the method comprises the steps that a query party system sends a query request to a data party system through a coordinator system; and the data party system obtains a corresponding response sample attribute based on the target encrypted sample identifier, encrypts the response sample attribute by using the query party public key to obtain an encrypted sample attribute, and generates a query result according to the target encrypted sample identifier and the encrypted sample attribute. And the data party system sends a query result to the query party system through the coordinator system. And the query party system decrypts the encrypted sample attribute in the query result through the query party private key to obtain a target sample attribute corresponding to the target encrypted sample identifier. The coordinator system is connected with the query party system and each data party system, so that the query party system is prevented from directly sending a query request to each data party system, and the privacy of query party information and the privacy of data of the data party systems are ensured.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of data processing, and in particular, to a data sharing method, device, device, and storage medium. Background technique [0002] In the scenario of the Internet of Everything, the data federation between different industries, institutions, and departments will form a huge data alliance. There is a great need to share the data information held by each other among different institutions. However, more and more institutions have strengthened their own data protection requirements in data cooperation. In the current environment of lack of data protection, data sharing among various institutions cannot be realized. This makes it impossible for data to be effectively shared and flowed among different industries, institutions, and departments, and the value of data itself cannot be fully realized. [0003] Existing data sharing technologies are mainly aimed at the same organization, realiz...

Claims

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Application Information

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IPC IPC(8): G06F16/176G06F21/60G06F21/62G06F21/64
CPCG06F16/176G06F21/602G06F21/6218G06F21/64
Inventor 刘红宝高鹏飞郑建宾邱震尧周雍恺程栋庞悦欧阳琛金灵
Owner CHINA UNIONPAY
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