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Data query method and device

A data query and data technology, applied in the computer field, can solve the problem of low data query security, and achieve the effect of improving security

Active Publication Date: 2019-08-06
TENCENT TECH (SHENZHEN) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a data query method and device to solve the problem of low data query security in the prior art

Method used

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, 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 making creative efforts belong to the protection scope of the present invention.

[0041] In order to facilitate the understanding of the embodiments of the present invention, several concepts are briefly introduced below:

[0042] Data desensitization: refers to the transformation of secret or private information contained in data, such as personal identification information, commercial confidential information, etc., so that malicious attackers cannot directly obtain sensitive information from desensitized data , so as to r...

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Abstract

The invention relates to the technical field of computers, in particular to a data query method and device, and the method comprises the steps: receiving a first query request sent by a client, the first query request at least comprising a previous preset number of bits of a first Hash value obtained after the client performs Hash operation on target query data, and calling a preset k-anonymous algorithm for obtaining hash values of the query results conforming to the previous preset number of bits on the basis of pre-stored mapping relationships between the data and the hash values; and according to the obtained Hash values, performing query from a preset database, and returning k query results to the client, so that the client obtains a query result corresponding to the first Hash valuefrom the k query results. In this way, data query desensitization protection is realized based on the k-anonymous algorithm, and a server cannot determine a target query result in k query results, sothat the target query data cannot be leaked even if the target query data does not exist in a database, and the security is improved.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a data query method and device. Background technique [0002] At present, in the security knowledge graph of the advanced threat tracing system, the security entity sample data is usually stored in the form of plain text. When the customer makes a query request to the security knowledge graph, the query request is also sent to the security knowledge graph in plain text. This method will lead to the disclosure of the customer's query content and reduce the security. Therefore, it is necessary to desensitize the data query. Contents of the invention [0003] Embodiments of the present invention provide a data query method and device to solve the problem of low data query security in the prior art. [0004] The specific technical scheme that the embodiment of the present invention provides is as follows: [0005] An embodiment of the present invention provides a data query met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/62G06F21/60
CPCG06F21/6254G06F21/6227G06F21/602
Inventor 孔庆磊邓永廖湘平
Owner TENCENT TECH (SHENZHEN) CO LTD
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