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Encoded cloud data storage, distribution and access method

A technology for data storage and access methods, applied in digital transmission systems, electrical components, error prevention, etc., can solve problems such as low service efficiency and low data security, and achieve fast response speed, good confidentiality performance, and high data acquisition efficiency. Effect

Active Publication Date: 2019-03-01
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the technical defects of low data security and low service efficiency in the existing cloud storage and distribution technology, and propose a method for data storage, distribution and access of coding cloud

Method used

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  • Encoded cloud data storage, distribution and access method
  • Encoded cloud data storage, distribution and access method
  • Encoded cloud data storage, distribution and access method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] This embodiment describes the specific implementation of data storage, distribution and access using a method for data storage, distribution and access of an encoding cloud according to the present invention.

[0048] figure 1 It is a schematic flow chart of a data storage, distribution and access method of an encoding cloud in the present invention.

[0049] From figure 1 It can be seen that, specific to the data storage and distribution part in the encoding cloud data storage and distribution method of this embodiment, the following steps are included:

[0050] Step 1). Perform first-level encoding on the K symbols of the source data to be stored and distributed to generate N symbols;

[0051] Among them, the first-level encoding is a reversible transformation with hash characteristics, and its purpose is to make the data have hash characteristics, including interleaving and non-systematic error correction coding concatenators, DES encryption algorithm, IDEA encrypt...

Embodiment 2

[0075] This embodiment describes the specific process of data storage and distribution by a service provider according to the specific needs of a customer by adopting a data storage, distribution and access method of an encoding cloud according to the present invention.

[0076] Table 1 below is a company's annual appraisal performance table, which lists personal privacy, including name, age, position, rewards and punishments, and annual appraisal results. This information should not be visible to all employees of the company, but should only be accessible to management or users with special rights, so as to avoid privacy leaks and negative impact on the company.

[0077] Table 1 Annual performance table of a certain company

[0078]

[0079] Table 2 below is the result of first-level encoding of the data in Table 1, and then classification of core data groups and scattered data groups; the message corresponding to each serial number has a plain text summary as an index.

...

Embodiment 3

[0113] This embodiment describes a method for storing, distributing and accessing coded cloud data of the present invention, which is applied to a secure cloud storage method for personal or enterprise data, such as figure 2 shown.

[0114] A secure cloud storage method for personal or corporate data, including two stages of data storage and distribution and data access;

[0115] Among them, data storage and distribution include the following steps:

[0116] Step 1i. The data storer decomposes the data into decentralized blocks and core blocks, and encodes them to generate core clouds and decentralized clouds respectively;

[0117] Among them, the data storer is the individual or enterprise using the data storage service;

[0118] Step 2i. The data storer stores the decentralized cloud to the cloud platform provided by the cloud storage service provider;

[0119] Among them, each piece of decentralized cloud contains a digital signature to ensure the integrity of each piec...

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Abstract

The invention relates to an encoded cloud data storage, distribution and access method, and belongs to the technical field of wireless storage and transmission. The encoded cloud data storage, distribution and access method comprises two parts of data storage and distribution and data access; the part of data storage and distribution comprises the steps of: 1, carrying out first-stage encoding onoriginal data; 2, dividing symbols after first-stage encoding into distributed and core data sets; 3, carrying out fountain encoding on the distributed data sets to generate distributed clouds; and 4,generating a core cloud on the basis of the core data sets; and the part of data access comprises the steps of: A, after a core cloud server receives a user request, skipping to the step B; B, carrying out authentication on the access request, and after authentication is passed, carrying out fountain encoding on the core cloud to generate sufficient encoded packets to give to a requesting user; and C, by the requesting user, carrying out combined decoding on the received encoded packets and the distributed clouds to recover the original data. The method is based on dimensionality limitation,so that even though the user acquires all the distributed cloud data, if the core cloud data is not added, the original data still cannot be acquired, and thus, the method has the advantages of good secrecy performance and high response speed.

Description

technical field [0001] The invention relates to a method for storing, distributing and accessing coded cloud data, and belongs to the technical fields of data coding, encryption and decryption, data storage and cloud storage. Background technique [0002] In the past ten years, with the advancement of technology, the technology of storing data after encoding has been widely used in various industries. Locally classify, sort, and number commodities, products, and materials, and then store and track information in the cloud. This type of application is very common. When the data itself is to be stored and accessed, data such as files and codes can be encoded and stored in the cloud: such as Alibaba Cloud and Baidu Cloud. [0003] However, the existing cloud storage methods for large amounts of data are mainly based on access passwords, digital signatures and authentication. When forged passwords, signatures and authentication information appear, the storage end does not have...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L29/06H04L29/08
CPCH04L1/0054H04L1/0056H04L1/0059H04L1/0076H04L63/0428H04L63/083H04L67/1097
Inventor 李祥明卢继华杨杰孙磊李翔
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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