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Metadata verification method, system server and computer readable storage medium

A verification method and metadata technology, applied in the field of blockchain, can solve problems such as leakage of non-public files, and achieve the effect of improving security

Pending Publication Date: 2019-04-19
SHENZHEN THUNDER NETWORK TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, based on the existing blockchain consensus mechanism, before a user writes the metadata of a data file into the blockchain system through a transaction node device on the blockchain system, when the blockchain system is maliciously attacked or encrypted If the mechanism is deciphered, an illegal attacker can take advantage of the vulnerability to forge the metadata of the data file (for example, the metadata includes the first verification value, file size, file owner, etc.) and tamper with the file owner, thereby causing the non-public file Leakage, or, causing illegal data to form a consensus in the blockchain

Method used

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  • Metadata verification method, system server and computer readable storage medium
  • Metadata verification method, system server and computer readable storage medium

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Embodiment Construction

[0062] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0063] It should be noted that the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and should not be understood as indicating or implying their relative importance or implicitly indicating the number of indicated technical features . Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of said features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solut...

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Abstract

The invention discloses a metadata verification method and system, a server and a computer readable storage medium. The method comprises the following steps: a server receives metadata of a file uploaded by a user side; wherein the metadata comprises a traceable node hash list in a Merkel tree constructed by a plurality of data blocks of the file; Then, the server calculates a root hash value of the Merkel tree according to the traceable node hash list, finally, the server judges whether the root hash value is the same as the hash value of the file, and if yes, it is determined that metadata verification is passed, and metadata is stored. Compared with the prior art, the method and the device have the advantage that the metadata writing safety is improved.

Description

technical field [0001] The present invention relates to the technical field of block chains, in particular to a metadata verification method, system, server and computer-readable storage medium. Background technique [0002] Blockchain technology has the characteristics of decentralization and non-tamperable information. Using blockchain technology can realize transaction events involving multiple parties (for example, transfer transactions, payment transactions, data transactions, etc.). For example, if Bank A and Bank B conduct a transaction on the block chain, all other nodes on the block chain will know the transaction, and other participants can participate in confirming the accuracy of the transaction to prevent tampering of information. Furthermore, the blockchain is essentially a distributed database based on smart contracts. When a user writes a data file into a block of the blockchain through a transaction node device on the blockchain, the The above data files wi...

Claims

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Application Information

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IPC IPC(8): G06F21/64G06F16/13
CPCG06F21/64
Inventor 郭加楼
Owner SHENZHEN THUNDER NETWORK TECH
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