Data query method and system, computer equipment and storage medium

A data query, query party technology, applied in the field of data security, can solve the problem of inability to guarantee the privacy and security of the query

Pending Publication Date: 2021-08-10
PING AN TECH (SHENZHEN) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides a data query method, system, computer equipment and storage medium to solve the problem that the privacy and security of the query cannot be guaranteed in the existing data query process

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  • Data query method and system, computer equipment and storage medium
  • Data query method and system, computer equipment and storage medium
  • Data query method and system, computer equipment and storage medium

Examples

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Embodiment Construction

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0029] The data query method provided by the present invention can be applied in a data query system, the data query system includes a data query party and a data provider, and the data provider and the data query party realize communication through a network connection. The data query method can effectively solve the problem that the privacy and security of the query cannot be guaranteed in the existing data query process.

[0030] In one embodiment, ...

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PUM

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Abstract

The invention relates to the technical field of data security, in particular to a data query method and system, computing equipment and a storage medium. The data query method is applied to the data query system. The data query system comprises a data provider and a data query party. The data query method comprises the steps that a data query party receives a public key sent by a data provider, generates a random number, and blinds data to be queried by adopting the public key and the random number to obtain a blinding result; the data query party sends the blinding result to the data provider and receives a first ciphertext returned by the data provider; the data query party carries out blind removal processing on the first ciphertext, the random number is removed, and a blind-removed second ciphertext is obtained; the data query party locates the target index based on the second ciphertext; and based on the target index, an oblivious transmission protocol is executed, so that the data query party obtains target query data corresponding to the target index returned by the data provider. The data query method can effectively ensure the security of data query.

Description

technical field [0001] The invention relates to the technical field of data security, in particular to a data query method, system, computer equipment and storage medium. Background technique [0002] Data querying is a very common and widely used technique. Generally, the data query process includes: the data queryer provides the data to be queried to the data provider, and the data provider searches the database according to the received data to be queried and returns the result after retrieval. However, in the data query process, the data provider will know what the specific content of the query is. For the query, it is equivalent to exposing the query data, and the privacy and security of the query cannot be guaranteed. Contents of the invention [0003] Embodiments of the present invention provide a data query method, system, computer equipment, and storage medium to solve the problem that the privacy and security of the query cannot be guaranteed in the existing dat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/22G06F16/245G06F21/60G06F21/62
CPCG06F21/602G06F21/6227G06F16/2228G06F16/245
Inventor 李正扬王健宗黄章成司世景
Owner PING AN TECH (SHENZHEN) CO LTD
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