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Block chain account book distributed storage technology based on erasure code

A technology of blockchain and erasure code, applied in the field of blockchain, to achieve the effect of reducing the occupation of storage resources, reducing demand, and reducing the demand for storage resources

Inactive Publication Date: 2019-02-19
CHONGQING UNIV OF POSTS & TELECOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to solve the above problems of existing blockchain technology on data storage

Method used

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  • Block chain account book distributed storage technology based on erasure code
  • Block chain account book distributed storage technology based on erasure code
  • Block chain account book distributed storage technology based on erasure code

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Embodiment Construction

[0021] The technical solutions in the embodiments of the present invention will be described in detail below in combination with the accompanying drawings in the embodiments of the present invention. The described embodiments are only some of the embodiments of the invention.

[0022] The technical scheme that the present invention solves the problems of the technologies described above is:

[0023] In order to carry out clear and detailed introduction to the present invention, er, er, the examples are combined here figure 1 Briefly introduce the application scenarios of blockchain distributed ledgers based on erasure codes. exist figure 1 The five nodes in the blockchain together form a blockchain, and a ledger is synchronized through a consensus mechanism. When it is necessary to encode the Wth block of the ledger, the block W is divided into 3 data blocks, and 2 additional check blocks are generated from these data blocks through encoding technology. 2 check blocks and ...

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Abstract

The invention relates to a block chain account book distributed storage technology based on erasure code, and belongs to the block chain technology field. The technology comprises the following steps:a) the block delay coding strategy allows to delay the coding of a certain number of new blocks to meet the synchronization requirements of other block chain consensus nodes for blocks; B) accordingto the set block coding algorithm, the blocks satisfying the coding condition are cut into k data blocks, each data block having a size of about 1 / k of the original block, and further the cut k datablocks are encoded into n (n) k encoded blocks by the erasure coding technology; (c) each block chain node reserves a part of that coding block, and finally the whole block chain network store the coding blocks decentrally; D) when the original block needs to be recovered from the encoded block, the current node collects the remaining encoded block corresponding to the block from the remaining nodes, and then recovers the original block according to the corresponding decoding algorithm. The method reduces the requirement of the block chain for storage resources and improves the utilization rate of storage space.

Description

technical field [0001] The invention belongs to the technical field of block chain, and specifically relates to reducing the demand of block chain nodes for storage resources through erasure code distributed storage technology in the block chain, reducing the occupation of storage resources while ensuring the availability of stored data, improving the storage space utilization. Background technique [0002] With the advent of blockchain technology, its characteristics of decentralization, distributed multi-copy storage, consistent data consensus, data traceability, and data difficult to tamper have made it widely used in the financial field. Records, copyright information records, education information records and many other fields have been widely used. However, blockchain technology also has its obvious shortcomings. Since the blockchain network adopts multi-copy redundant storage and a chain structure, nodes in the blockchain network can check each transaction informatio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/901H04L29/08
CPCH04L67/1097
Inventor 赵国锋张明聪何英
Owner CHONGQING UNIV OF POSTS & TELECOMM
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