Block chain-based distributed data storage method, device, node and system

Abstract

The invention provides a block chain-based distributed data storage method, device, node and system, which can be used in the technical field of block chains, the method comprises the following steps: receiving a data storage request, and determining the data type of to-be-stored data according to the data storage request; if the data type is structured data, transmitting the to-be-stored data to a block chain node for storage; if the data type is unstructured data, transmitting the to-be-stored data to a trusted storage node of a distributed storage system to enable the trusted storage node to perform file cutting on the to-be-stored data, and encrypting the to-be-stored data after file cutting to obtain encrypted information, and transmitting the encrypted information and the data source information of the to-be-stored data to the block chain node for storage. According to the method, on the basis of an existing block chain structured on-chain data storage technology, an under-chain distributed block chain storage technology is further aggregated to carry out data collaborative storage.

Description

technical field [0001] The present invention relates to the technical field of data processing, in particular to the technical field of block chain, in particular to a distributed data storage method, device, node and system based on block chain. Background technique [0002] Blockchain technology uses block chain data structure to verify and store data, uses distributed node consensus algorithm to generate and update data, uses cryptography to ensure the security of data transmission and access, and utilizes intelligence composed of automated script codes. A new distributed infrastructure and computing method that uses contracts to program and manipulate data. As a new distributed system for data sharing, blockchain technology relies on its point-to-point decentralized communication, encryption technology verification can not be tampered with, data transparency and traceability, distributed consensus collective maintenance and other characteristics, to solve the problem of ...

AI Technical Summary

Problems solved by technology

However, the blockchain is more sensitive to unstructured large file storage, the overall network and file processing resource occupancy rate will be relatively high, and it will also reduce the efficiency of block consensus, and large files are equivalent to The number of copies of the number of bookkeeping nodes is stored, resulting in a great waste of storage

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