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Data holding proving method, device and system

A data and technology to be verified, applied in the field of data processing, can solve the problems of personal storage without a data holding proof mechanism, damage to the interests of others, etc., to achieve the effect of avoiding damage to interests and preventing evil

Inactive Publication Date: 2018-10-09
BEIJING QIHOO TECH CO LTD
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Problems solved by technology

[0003] In view of this, the data holding proof method, device and system provided by the present invention can solve the problem that the existing personal storage has no data holding proof mechanism, which causes damage to the interests of others

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  • Data holding proving method, device and system
  • Data holding proving method, device and system
  • Data holding proving method, device and system

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Embodiment Construction

[0044]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.

[0045] The embodiment of the present invention provides a method for proving data possession, the method is mainly applied to the storage side, such as figure 1 As shown, the method includes:

[0046] 101. Receive the file fragment identifier of the file to be verified and the root node of the Merkle trusted tree of the file to be verified sent by the verifier.

[0047] Wherein, the root node is the root node of the same Merkle tru...

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Abstract

The invention discloses a data holding proving method, device and system. The problem that there is no data holding proving mechanism for existing personal storage can be solved. The method includes the steps of receiving file segment identifiers of a to-be-verified file and a root node of a Merkle trusted tree; searching for the Merkle trusted tree corresponding to the root node and file segmentscorresponding to leaf nodes of the Merkle trusted tree; sending the file segments corresponding to the file segment identifiers and authentication paths of the file segments to a verification side sothat the verification side can conveniently conduct data holding verification on a storage side according to the file segments, the authentication paths and the root node; or sending operation values, calculated according to a preset algorithm, of the file segments and file segment identifiers and the authentication paths of the file segments to the verification side so that the verification sidecan conduct data holding verification on the storage side according to the operation values, calculated on the basis of the preset algorithm, of the file segments, the operation values, calculated onthe basis of the preset algorithm, of the file segment identifiers, the authentication paths and the root node. The data holding proving method, device and system are mainly applicable to scenes in which data is stored on the basis of a blockchain.

Description

technical field [0001] The present invention relates to the technical field of data processing, in particular to a data possession certification method, device and system. Background technique [0002] Blockchain technology is a method of data storage, transmission and certification that is decentralized and resides in a distributed structure. It uses data blocks to replace the current Internet's reliance on central servers. At present, in the field of blockchain, a personal storage function is provided, that is, users can store files that need to be stored in other nodes of the blockchain, and reward the nodes that store files, such as paying. However, it is possible for an individual to do evil, and may claim to have stored it without storing it, thereby causing damage to the interests of others. Therefore, how to provide a data holding proof mechanism needs to be solved urgently. Contents of the invention [0003] In view of this, the data holding proof method, device...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06F21/78
CPCG06F21/78
Inventor 胡宇光殷宇辉
Owner BEIJING QIHOO TECH CO LTD
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