Data storage method and device, electronic equipment and storage medium

A data storage and data technology, applied in the information field, can solve problems such as file leakage, low efficiency, and inferiority

Pending Publication Date: 2021-09-14
卓尔智联(武汉)研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When setting the user's viewing authority, usually by setting the authority corresponding table in the database, according to the user ID (Identity, ID), query the table to judge the user's authority, so as to determine whether the user can access, but once the user password If the key is leaked or the permission table is tampered with, there will be a risk of file leaks
If attribute-based encryption is used to directly encrypt plaintext data, the efficiency is low and far inferior to traditional symmetric encryption

Method used

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

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Embodiment Construction

[0050] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below with reference to the accompanying drawings. All other embodiments obtained under the premise of creative work fall within the protection scope of the present invention.

[0051] The embodiments of the present invention and the features of the embodiments may be arbitrarily combined with each other without conflict. The steps shown in the flowcharts of the figures may be performed in a computer system, such as a set of computer-executable instructions. Also, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that herein.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The ...

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Abstract

The invention provides a data storage method and device, electronic equipment and a storage medium, which are applied to a block chain node. The method comprise the following steps: receiving a user registration request sent by a client; distributing an attribute set for the client according to the user registration request, wherein the attribute set comprises at least one attribute value; generating a first key and a second key, wherein the first key is used for encrypting plaintext data to generate first ciphertext data, and the second key is used for encrypting the attribute set; according to the attribute set and the second key, encrypting the first key to generate second ciphertext data; storing the first ciphertext data and the second ciphertext data, wherein the second ciphertext data is used for determining the first key by matching with the attribute set provided by the client in a data query process.

Description

technical field [0001] The present invention relates to the field of information technology, and in particular, to a data storage method, device, electronic device and storage medium. Background technique [0002] In the related art, a single architecture or a traditional distributed solution can be used to deploy the database, and the data can be stored in a public database. When setting the user's viewing authority, the authority corresponding table is usually set in the database, and the user's authority is judged by querying the table according to the user ID (Identity, ID), so as to determine whether the user can access or not. If the key is leaked or the permission correspondence table is tampered with, there will be a risk of file leakage. If the plaintext data is directly encrypted by the attribute-based encryption method, the efficiency is low, and it is far inferior to the traditional symmetric encryption. SUMMARY OF THE INVENTION [0003] In view of this, embo...

Claims

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Application Information

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IPC IPC(8): G06F21/62G06F16/27G06F21/60
CPCG06F21/6218G06F21/602G06F16/27
Inventor 向舜
Owner 卓尔智联(武汉)研究院有限公司
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