A method for preventing data leakage in blockchain-based data sharing

A data sharing and data leakage technology, applied in data processing applications, digital data protection, electronic digital data processing, etc., can solve problems such as data leakage, and achieve the effect of preventing data leakage

Active Publication Date: 2021-09-03
HANGZHOU QULIAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The invention solves the data leakage problem that the data provider is worried about, and makes better use of multi-party data to maximize the utilization value of the data

Method used

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  • A method for preventing data leakage in blockchain-based data sharing

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Embodiment

[0027] Such as figure 1 As shown, an example of a method for preventing data leakage in blockchain-based data sharing is a scenario where a user makes a loan through bank A, which specifically includes the following steps:

[0028] Step 1: Bank B and Bank C publish user data source information on the block chain; the data source information includes database type, data field, and data operation method; the data operation method is a database query method, which can be used for Fields that meet the query conditions are queried; the data fields include user ID number, user loan status, and user credit status; the query condition is the user ID number;

[0029] Step 2: After obtaining the user's authorization, Bank A obtains the right to use the user's loan and credit status on the blockchain by requesting authorization, that is, the voucher generated by the blockchain; if using data from multiple parties, obtain multiple vouchers, Therefore, at this time, it is necessary to obt...

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Abstract

The present invention discloses a method for preventing data leakage in blockchain-based data sharing. Firstly, the party releases the data source information shared by the data provider to the blockchain, and then the data user obtains the right to use the data. Write the sub-model and the overall model. The overall model drives the sub-model to run to obtain the required data source information and send it to the data user. Finally, the data user, data provider and the used data source information will be recorded on the blockchain. The present invention solves the problem that the data provider is worried about data leakage among multiple parties and it is difficult to share data among multiple parties, and finally completes the multi-party data sharing that meets the query conditions of the data user without leaking irrelevant data.

Description

technical field [0001] The invention relates to the fields of block chains and data sharing, in particular to a method for preventing data leakage in data sharing based on block chains. Background technique [0002] The blockchain is essentially a decentralized database, which is mainly used to solve the trust and security issues of transactions. Its transaction accounting is completed by multiple nodes distributed in different places, and each node records a complete account. Every node can participate in monitoring the legality of transactions. No node can record the ledger data alone, thus avoiding the possibility of false accounting. Using asymmetric encryption and authorization technology, the transactions stored on the blockchain are public, but the account identity information is encrypted and can only be accessed with the authorization of the data owner, ensuring data security and privacy. The consensus mechanism completes the verification and confirmation of trans...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/62G06F16/2458G06Q10/10G06Q20/12G06Q40/02H04L29/08
CPCG06F21/6245G06F16/2458G06Q10/103G06Q20/123H04L67/1097G06Q40/03
Inventor 姚文豪李伟邱炜伟尹可挺李启雷梁秀波
Owner HANGZHOU QULIAN TECH CO LTD
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