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A data management method, system and related components

A data management and data technology, applied in transmission systems, electrical components, etc., can solve problems such as data ownership changes, cloud data privacy threats, etc., and achieve the effect of improving security

Active Publication Date: 2021-12-21
QINGDAO UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the data owner may modify or delete the data that has been uploaded to the cloud server, which will result in a change of data ownership
Changes in data ownership pose a huge threat to the privacy of cloud data

Method used

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  • A data management method, system and related components
  • A data management method, system and related components
  • A data management method, system and related components

Examples

Experimental program
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Embodiment Construction

[0045] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0046] In data cloud storage technology, data owners will often modify their cloud data for various reasons, so the change of data ownership will often occur. Once the modified or deleted data owner obtains the ciphertext of the data in some way, the data owner can decrypt the original plaintext of the data by using the decryption key held before. If...

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PUM

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Abstract

The present application discloses a data management method. The data management method includes, when a data ownership adjustment request is received, determining the target user and target data corresponding to the data ownership adjustment request; determining the original ownership group corresponding to the target data according to the ownership list, Delete the target user from the original ownership group to obtain a new ownership group; perform a re-encryption operation on the target data to obtain the re-encrypted target data, and determine the re-encryption key corresponding to the re-encrypted target data; send to each user in the new ownership group The re-encryption key so that users in the new ownership group can use the re-encryption key to decrypt the re-encrypted target data. This application can avoid the threat of data ownership change to cloud data and improve the security of cloud data. The application also discloses a data management system, a computer-readable storage medium and an electronic device, which have the above beneficial effects.

Description

technical field [0001] The present invention relates to the technical field of data storage, in particular to a data management method and system, a computer-readable storage medium and an electronic device. Background technique [0002] Cloud storage is a technology that stores user data in a remote cloud, which allows data owners to avoid investing a lot of time and energy in maintaining and managing local software and hardware resources, so it is very popular. However, in practical applications, a large amount of data stored in the cloud is repetitive, which means that the cloud server will waste a lot of resources to store multiple identical data. [0003] In order to reduce repeated storage of the same data, cloud storage technology usually sets an ownership list for each data, and determines whether the user stores the data by updating the ownership list. That is to say, in cloud storage applications, multiple data owners can have ownership of the same data. However,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/08
CPCH04L63/0478H04L63/062H04L67/1097H04L67/06
Inventor 于佳柏建丽杨明
Owner QINGDAO UNIV
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