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Big data fairness and security transaction method based on block chain

A technology for secure transactions and big data, used in data processing applications, instruments, payment systems, etc.

Pending Publication Date: 2019-11-12
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A method that supports autonomous, fair and secure data transactions is currently missing

Method used

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  • Big data fairness and security transaction method based on block chain
  • Big data fairness and security transaction method based on block chain
  • Big data fairness and security transaction method based on block chain

Examples

Experimental program
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Embodiment Construction

[0045] Embodiments of the present invention: a blockchain-based big data fair and secure transaction method, including the following steps:

[0046] 1) Data preprocessing stage: the data owner groups the original data to be traded, and encrypts each group with a different key to obtain the corresponding encrypted ciphertext; at the same time, the block hash, key hash, and encrypted ciphertext are calculated. Text hash, get a quintuple data structure: data block, data block Hash, ciphertext block, key and key hash;

[0047] 2) Carry out a fair trade agreement, the specific steps are as follows:

[0048] Step 1: The buyer proposes the purchase data to the data owner, and the data owner sends all encrypted data blocks, original data hash and key hash to the buyer;

[0049] Step 2: The buyer randomly selects and authenticates the received data;

[0050] Step 3: After the buyer is successfully authenticated, a payment transaction is initiated through the Bitcoin network, and the ...

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Abstract

The invention discloses a big data fairness and security transaction method based on a block chain. According to the method, the data is partitioned into blocks which are large enough and are encrypted respectively, so that random selection authentication in a fair transaction process can be ensured. In a random selection authentication process, probability characteristics are used to ensure thata data owner does not forge data. For example, the remaining secret keys are disclosed by utilizing a bitcoin script, so that a purchaser can obtain all the secret keys, and a data owner can obtain corresponding bitcoins. Through the technical points, the data owner can perform autonomous, fair and safe data transaction without participation of a third party, the rights and interests of the data owner can be effectively ensured, and the big data sharing efficiency is greatly improved.

Description

technical field [0001] The invention relates to the fields of big data fair payment and block chain, especially a block chain-based big data fair and safe transaction method. Background technique [0002] With the rapid development of the Internet, big data has become a key factor driving industrial development. Therefore, the open sharing of big data will greatly promote the reasonable flow of data value, which is conducive to the formation of a big data ecosystem. However, the current big data sharing has the following problems. First, the openness of big data sharing is insufficient, and there are many situations such as information islands, data barriers, data fragmentation, and information asymmetry. Second, the security of big data open sharing has always been a problem. A difficult and urgent problem to be solved; finally, the open sharing of big data presents a situation where centralization, multi-centralization, and decentralization coexist. How to enable indepen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q20/38G06Q40/04
CPCG06Q20/3825G06Q20/3829G06Q40/04
Inventor 陈玉玲任伟李昌楼
Owner GUIZHOU UNIV
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