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Private large file storage system based on blockchain

A storage system and blockchain technology, applied in the fields of instruments, electrical digital data processing, digital data protection, etc., can solve the problem of small data volume, ensure non-tampering, solve the problem of single point of failure and malicious modification, high efficiency and stability Shared effects

Inactive Publication Date: 2020-06-30
HANGZHOU QULIAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, in the current blockchain system, only transaction data is generally transmitted between nodes, and the amount of data is small

Method used

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  • Private large file storage system based on blockchain
  • Private large file storage system based on blockchain
  • Private large file storage system based on blockchain

Examples

Experimental program
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Embodiment Construction

[0041] The architecture of a privacy large file storage system based on blockchain in the present invention is as follows: figure 1As shown, the storage system consists of four or more blockchain nodes, and each blockchain node needs to access a file system, and multiple blockchain nodes can share the same file system. After the file is uploaded to the storage system, the description information of the file is recorded in the blockchain public ledger, and the file content is stored in the file system connected to the node. Files are transferred between nodes through p2p links.

[0042] Such as figure 2 As shown, a block chain-based privacy large file management system of the present invention provides an upload scheme for private large files, including the following steps:

[0043] (1.1) Calculate the hash value of the uploaded file to get the file hash.

[0044] (1.2) Upload the file to the upload target node, and construct a block chain transaction of the file upload typ...

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Abstract

The invention discloses a private large file storage system based on blockchain. The system is composed of blockchain nodes. A file system is integrated into the blockchain nodes, and file storage andverification are completed in the nodes; after files are uploaded to a storage system, description information of the files is recorded in a blockchain public account book, file contents are stored in the file system connected with the nodes, and the files are transmitted among the nodes through a p2p link; the descriptive data of the files is publicly stored on all nodes, and file contents are stored in a specified node, so the files are ensured not to be tampered in the blockchain system, and the privacy of the files is also ensured. According to the method, the single-point fault of a blockchain node can be avoided, a malicious node can be ensured not to steal a private file, and the storage space of the node is saved. According to the inter-blockchain file transmission scheme providedby the invention, sharing of the file between the nodes can be efficiently and stably realized, and blocking of inter-node transaction broadcast is not caused.

Description

technical field [0001] The invention belongs to the technical field of block chains, in particular to a block chain-based privacy large file storage system. Background technique [0002] Blockchain technology is a decentralized distributed ledger technology that can safely store various data. It is characterized by the fact that the data stored on the blockchain cannot be forged and tampered with. Each node on the blockchain maintains a public account book, and all transactions are stored after the consensus of each node. Any tampering of the account book maintained by any node is invalid. [0003] In the blockchain, it is precisely because each node will hold the same ledger, if the files are directly stored in the ledger, it will cause redundant storage waste. Moreover, the privacy cannot be well guaranteed by storing files in the blockchain. There are currently some practices that store files in other file systems first, and then record the hash value of the file in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/62
CPCG06F21/6245
Inventor 邱炜伟李伟蔡亮张珂杰匡立中
Owner HANGZHOU QULIAN TECH CO LTD
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