Data holding proving method and device based on block chain and readable storage medium

A blockchain and data technology, applied in the Internet field, can solve problems such as workload cheating of storage nodes, and achieve the effect of preventing workload cheating

Inactive Publication Date: 2018-10-19
BEIJING QIHOO TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] In view of the above problems, the present invention proposes a block chain-based data possession proof method, device and readable storage medium to solve the problem of possible workload cheating in storage nodes in the block chain system

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  • Data holding proving method and device based on block chain and readable storage medium
  • Data holding proving method and device based on block chain and readable storage medium
  • Data holding proving method and device based on block chain and readable storage medium

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Embodiment Construction

[0032] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0033]In a distributed storage system based on blockchain technology, for example, in a distributed storage system based on a public chain, some nodes have idle storage space, which can be used to provide storage for other users with storage needs Serve, that is, become a storage node, so as to obtain certain benefits. For example, a user publishes a file storage task and broadcasts it through the entire network of the blockchain. ...

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Abstract

The invention discloses a data holding proving method based on a block chain, a device and a readable storage medium, belonging to the technical field of the Internet. The method comprises: a memory node generates a challenge random number according to a first preset rule, wherein a target file is stored in pieces in the memory node; then the corresponding pieces in the target file are searched according to the challenge random number, the searched pieces are taken as the target pieces, and the proving data corresponding to the check value of the target file is obtained according to the targetpieces and a preset one-way function, and the obtained proving data is broadcasted to the block chain as the workload proof of the memory node. In this way, other nodes in the block chain can verifywhether the memory node actually holds the target file according to the proving data and the check value of the target file, thereby preventing the memory node in the block chain system from cheatingin workload.

Description

technical field [0001] The present invention relates to the technical field of the Internet, in particular to a block chain-based data possession certification method, device and readable storage medium. Background technique [0002] In the information age, data storage is crucial. Currently, data storage methods are mainly divided into local storage and cloud storage. Cloud storage is a centralized service, and the service party controls the rules and dominance. Once the service party stops the service, the stored data will not be available. In addition, cloud storage services are provided through the construction of professional data centers, and the cost is extremely high. In the commercial field, the company's big data optical storage costs are not a small expense. Based on this, some researchers proposed a shared storage network based on blockchain technology. Blockchain and sharing economy are both current hot spots and leading future trends. As the amount of infor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 胡宇光殷宇辉
Owner BEIJING QIHOO TECH CO LTD
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