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Data query method and device, equipment, storage medium and program product

A data query and query sequence technology, which is applied in digital data protection, electronic digital data processing, computer security devices, etc., can solve the problems of data availability reduction, violation of data out-of-domain restrictions, etc., to prevent data leakage and protect data privacy Effect

Pending Publication Date: 2021-08-10
WEBANK (CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although related technologies can prevent data leakage through encryption or anonymization technology, it will reduce the availability of data and violate the restrictions on data out-of-domain in the Privacy Protection Act.

Method used

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  • Data query method and device, equipment, storage medium and program product
  • Data query method and device, equipment, storage medium and program product
  • Data query method and device, equipment, storage medium and program product

Examples

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Embodiment Construction

[0047] In order to make the purpose, technical solutions and advantages of the present application, the following will be further described in connection with the accompanying drawings, and the described embodiments are not to be considered as limiting the present application, and those of ordinary skill in the art are not made All other embodiments obtained under the premise of creative labor belong to the scope of this application.

[0048] In the following description, "some embodiments" describes a subset of all possible embodiments, but it can be understood that "some embodiments" may be the same subset or different subset of all possible embodiments, and It can be combined with each other without conflict.

[0049] In the following description, the term "first \ second \ third" involved is only the similar object, does not represent specific sorting for the object, can be understood, "first \ second \ third" Allowed cases can be interchanged to each other or inward order, so...

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Abstract

The invention provides a data query method and device, equipment, a storage medium and a program product. The method comprises the steps that a coordinator generates a public key for encryption and a private key for decryption; at least two target participants are determined according to the at least two to-be-queried features, query requests corresponding to the target participants are determined, and feature data of part of the to-be-queried features are stored in the target participants; sending the public key and a query request corresponding to each target participant to the corresponding target participant; receiving a ciphertext query result sent by each target participant, wherein the ciphertext query result is determined by each target participant based on the public key and the query request received by each target participant; and determining target data according to the private key and the ciphertext query result sent by each target participant. The cross-table query of the data is realized on the premise of ensuring that the data is not out of the local of each participant, so that the data privacy can be protected, the data leakage is prevented, and the availability of the queried target data is not influenced.

Description

Technical field [0001] The present application relates to artificial intelligence technology, and it is not limited to, a data query method, device, device, storage medium, and program product. Background technique [0002] In the information society, manage and utilize all kinds of information resources, the database is almost applicable to each industry. Database query is commonly used database technology, usually, current data repository storage is saved in the form of (keyword key, value value) pair. The database query refers to the user's use of the key value, in the database, find the value corresponding to Key. Multi-table query means that data distribution is in multiple database tables, requiring a plurality of database tables for queries, common connection methods include: internal connection, left connection, right connection, and full connections. [0003] When multiple tables are distributed in different institutions or clients, these tables cannot be shared directly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/62G06N20/00H04L29/06
CPCG06F21/6227G06N20/00H04L63/0442
Inventor 黄安埠
Owner WEBANK (CHINA)
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