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Decentralized data transaction method based on block chain

A transaction method and decentralized technology, applied in the field of information security, can solve problems such as untrustworthy third-party data centers, data and identity privacy security issues, untrustworthy data centers, etc.

Active Publication Date: 2020-07-10
HEFEI UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The present invention aims to provide a blockchain-based decentralized data transaction method for the defects and deficiencies of the existing big data trading platform, such as uneven process data, untrustworthy third-party data centers, and easy data and identity privacy security issues. In order to solve the problem of untrustworthy data centers, ensure the data provider's ownership and right to know of personal data in the transaction, improve the intelligence and efficiency of the data transaction process, and provide a safe and fair big data transaction model for both parties

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  • Decentralized data transaction method based on block chain
  • Decentralized data transaction method based on block chain
  • Decentralized data transaction method based on block chain

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Embodiment

[0100] Data demander j requires data type D S It is the running monitoring data of the smart bracelet, and the required data entry is D A =1000, the data quality score requires β≥6.0, and the size of the candidate pool is N=3×D A . The data demander j publishes the data demand through the smart contract, which contains the above fields, and pays the reward τ=1000 of the payment data set to the contract account in advance.

[0101] In the blockchain-based big data trading platform, multiple data providers own this type of data. After the data demand contract is released, the data provider can summarize the blockchain data through the contract address of the smart contract and the interface provided. The information is sent to the smart contract to authorize the data transaction, and the data is agreed to participate in the transaction, and the smart contract will match the data. Table 1 represents the data information of the data providers authorized to participate in this d...

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Abstract

The invention discloses a decentralized data transaction method based on blockchain. The method is applied to a big data transaction environment composed of a secret key generation center, a blockchain and an intelligent contract; data summary information collection of a data transaction market is achieved through the blockchain, evaluation information of data use conditions is recorded, and transaction records in data transaction are recorded; data requirements can be issued through the intelligent contract, data required by a data demander is matched and screened, and distribution of data rewards is automatically completed. The problem that a data transaction center is not credible can be solved, ownership and informed rights of a data provider to personal data in transaction are guaranteed, intelligence and high efficiency of the data transaction process are improved, and therefore safe and reliable big data transaction service can be provided for two transaction parties.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to a transaction method for a big data platform based on blockchain and smart contracts. Background technique [0002] Blockchain is a decentralized technology. Its features such as non-tamperable information and distributed storage of data make it gradually applied in more fields. With the advent of the era of big data, some service providers need to mine and analyze massive amounts of big data in order to improve more accurate customer service. Data owners are also more aware of the value of data, and pay more attention to data privacy. At present, the big data trading market provides a market environment for data trading, but there are many defects in the privacy protection of user data and the value reward of data. Therefore, in this case, it is necessary to provide a safe and reliable trading platform. Making better use of the value of big data is an important di...

Claims

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Application Information

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IPC IPC(8): G06Q40/04G06F21/60G06F21/62G06F21/64
CPCG06Q40/04G06F21/602G06F21/6218G06F21/64
Inventor 胡东辉潘立选李萌郑淑丽李一凡
Owner HEFEI UNIV OF TECH
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