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A method and system for storing and sharing multi-user big data based on cloud platform

A big data storage and data sharing technology, applied in the field of information security cryptography, to solve the source and integrity concerns, reduce the burden of communication, and reduce the burden

Active Publication Date: 2021-07-13
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a distributed secure communication method and system based on blockchain, aiming at solving the problem of big data sharing that supports integrity verification in a multi-user environment

Method used

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  • A method and system for storing and sharing multi-user big data based on cloud platform
  • A method and system for storing and sharing multi-user big data based on cloud platform
  • A method and system for storing and sharing multi-user big data based on cloud platform

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Embodiment Construction

[0061] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0062] It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the compo...

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Abstract

The present invention proposes a multi-user big data storage and sharing method based on a cloud platform, including: a trusted authority TA selects security parameters, anti-collision hash functions and digital signature schemes, and generates system public parameters; each user according to the system The public parameters generate their respective public keys and private keys. The users include data sharers and data users; The final shared data and the data label corresponding to the shared data are uploaded to the cloud storage server; the data user verifies the data label corresponding to the shared data, and if it is legal, generates a challenge and sends the challenge to the cloud storage server ; The cloud storage server calculates the received challenge to obtain a response, and replies the response to the data user; the data user verifies the received response to judge the integrity of the shared data.

Description

technical field [0001] The invention relates to the field of information security encryption, in particular to a method and system for storing and sharing multi-user big data based on a cloud platform. Background technique [0002] With the great progress of information and communication technology, all kinds of smart devices have been widely used in people's work and life, and these devices may generate a large amount of data every day. For example, in a certain department of the company, large-scale data of an employee may need to be shared in the department so that all employees in the department can obtain the data. In order to save storage resources, an effective way is to upload the data to the cloud storage server and save it under the account of the department, so that all employees in the department can use the same account to access and download the data. [0003] Obviously, cloud storage servers can provide people with powerful storage capacity and flexible data ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/32H04L29/06H04L29/08
CPCH04L9/3236H04L9/3247H04L9/3271H04L63/123H04L67/1097H04L67/561
Inventor 赵萌丁勇王玉珏
Owner GUILIN UNIV OF ELECTRONIC TECH
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