A private data transaction method on a public data platform

Abstract

The invention discloses a private data trading method on a public data platform, comprising: a trading environment is constructed by a trusted third party organization, a background control system, anEthernet private chain and a distributed database; the background control system controls the operation of the private chain and nodes of the Ethernet Square and the operation of the distributed database. When a data owner applies to join the private link network for data transaction, the system automatically obtains an account address after the data owner joins the Ethernet private link, uploadsthe required transaction data to the distributed database, and the data owner deploys an intelligent contract on the private link, and sets a key and a price; and when the data owner joins the Ethernet private link, the system automatically obtains an account address and uploads the required transaction data to the distributed database. The data purchaser pays through the smart contract and obtains the corresponding data in the database. The invention provides a transaction method which can ensure the safety of the transaction and the lower transaction cost, thereby greatly improving the frequency and efficiency of the data transaction and maximizing the value of the data.

Description

technical field [0001] The invention belongs to the field of block chains, and in particular relates to a data transaction method based on block chains. Background technique [0002] Traditional network storage methods rely on storage servers, and the performance of storage servers is one of the main reasons for limiting system performance, and it is also the most important focus to ensure reliability and data security. If the storage server fails, it means that the entire system is paralyzed. With the continuous growth of data volume, the performance requirements of storage servers are also continuously improved, and the cost of storage will also be continuously increased. [0003] Blockchain: The blockchain records all operations over a period of time, saves them as a block, and synchronizes this block to all other nodes in the blockchain network. In order to add this block to the blockchain, nodes must solve a complex mathematical problem created by an irreversible cryp...

AI Technical Summary

Problems solved by technology

[0010] Although the blockchain operates on a distributed system, it cannot itself be a means of storing data

The data storage capacity of the blockchain is measured by the standards of traditional databases: the throughput is only a few transactions per second; the total capacity is only tens of GB; the delay of writing data by a single node is relatively long

Plus, adding nodes to a blockchain network creates even more problems: as the number of nodes increases, network traffic quadruples without improving throughput, latency, and capacity

Although offline transactions are safe, the means of transactions are very cumbersome, so for small amounts of data, the cost of offline transactions is relatively high

While ordinary online transactions relying on trusted third-party institutions generally work well, they still have inherent weaknesses based on credit models

A completely irreversible transaction is actually impossible, because a third-party organization cannot avoid mediating disputes, so adjustment costs are required, which increases transaction costs; and because the transaction is not completely irreversible, the need for trust between the two parties will increase, and the same increased transaction costs

The increase in transaction costs limits the minimum transaction size of data

Therefore, like offline transactions, the transaction process of data is very complicated and the cost is relatively high

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