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Cloud data management method based on block chain

A management method and cloud data technology, applied in the field of blockchain-based cloud data management, can solve the problems of lack of tamper-proof legal ownership mechanism consensus network, etc., to achieve the effect of improving security, improving management efficiency, and avoiding theft

Active Publication Date: 2017-09-22
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0005] In view of the above prior art, the purpose of the present invention is to provide a blockchain-based cloud data management method, to solve the lack of tamper-proof legal ownership mechanism in the prior art and to solve the technology of how to efficiently complete the verification of ownership in the consensus network question

Method used

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  • Cloud data management method based on block chain

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Experimental program
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Effect test

Embodiment 1

[0027] Step 1. Initialization:

[0028] Firstly, the public key and private key of the trusted server are generated, and then, the trusted server generates public parameters (including the public hash function, the code used to divide files, etc.), and issues the public key and private key to the user and the cloud server, Then generate the first block, and write the registration information of the trusted server as the initial information into the block;

[0029] Step 2. Upload data:

[0030] The user divides the file into multiple blocks, encodes them according to the public parameters, and calculates the metadata (including the hash value of the file, the root node of the Mocor tree, and the label information of the file. If the file involves encryption, it will also generate Key information), and then upload the data file and metadata to the cloud server together. After the cloud server receives the data, it signs the data upload information (including file size, uploader...

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Abstract

The invention discloses a cloud data management method based on a block chain and relates to the block chain cloud data management technology field. The method comprises the steps of initializing; uploading data; verifying ownership; and operating data. The method is characterized in that a block chain technology and an ownership certification technology are used to realize safe and high-efficiency management of cloud data; any one party can inquire a record on the block chain so as to high-efficiently trace a reason of a data problem; and because the block chain record possesses characteristics that the record can not be tampered and is traceable, real-time recording and safe management of a whole life period of cloud data can be realized and efficiency and safety of an existing cloud service are increased.

Description

technical field [0001] The invention relates to the technical field of cloud data management on blockchain, in particular to a cloud data management method based on blockchain. Background technique [0002] Currently, cloud storage servers are an excellent platform for storing data on a large scale, thanks to its clustered operation and maintenance. However, the biggest obstacle hindering the development of cloud storage is security issues. The increasingly frequent data leakage or sabotage incidents not only cause huge economic losses to users and service providers, but also bring negative political effects. In addition, in the event that user data is maliciously tampered with, deleted, or stolen, the cloud server cannot efficiently detect which link has the problem, which makes the user feel "helpless" and "bewildered" about the data loss problem. This aspect reflects the inefficiency of current cloud servers in data management. [0003] Blockchain is a technology that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08H04L9/32
CPCH04L9/3236H04L9/3247H04L63/08H04L63/10H04L63/126H04L67/1097
Inventor 黄可张小松夏琦陈瑞东刘小垒
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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