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A controllable data management method based on blockchain privacy protection

A technology of privacy protection and data management, which is applied in the field of controllable data management of privacy protection, can solve problems such as inability to provide security, and achieve the effects of improving user experience, improving performance, and ensuring rationality

Active Publication Date: 2020-12-22
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the existing controllable data management method cannot provide users with the security problem when collaboratively editing large private files, and proposes a controllable data management method based on blockchain privacy protection, which can Realize the whole-process monitoring of users modifying large private files, and when the user finishes modifying large private files, realize the review of the records of users modifying large private files, so that users can better modify large private files

Method used

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  • A controllable data management method based on blockchain privacy protection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A controllable data management method based on blockchain privacy protection, such as figure 1 Shown:

[0047] Include the following steps:

[0048] 1. System initialization, generate relevant parameters for key generation;

[0049] 2. The system management node generates public-private key pairs and addresses for itself and generates public-private key pairs and addresses for trusted nodes and contract sets (voting contracts and counting contracts);

[0050] The trusted node can be a functional management department with 1 veto power, which meets the functional management needs in real scenarios. For example, for the modification of house design drawings, the housing management department must review after the majority of the designers agree. , can be used as the official version as the basis for follow-up work; in order to prevent the designer from colluding, the modification plan can be vetoed by 1 vote veto right.

[0051] The voting contract and vote counting co...

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Abstract

The invention relates to a controllable data management method based on block chain privacy protection, which belongs to the technical field of sensitive data file modification management; the method encrypts and stores user modified files in the cloud; The trusted node votes on the file modified by the user. When the trusted node and the voting users exceeding the preset ratio λ all accept the modification of the file, the modification of the file is accepted; the user uploads the file, the user votes and The vote counting behavior and cloud file verification codes are all stored in the blockchain, and the non-repudiation feature of the blockchain is used to realize the full record of multi-user collaborative modification of large private files. Compared with the prior art, the present invention makes data management more secure, ensures the privacy of users and the rationality of file modification, and avoids the problem of collusion between users; The performance has been significantly improved, and the user experience has also been significantly improved.

Description

technical field [0001] The invention belongs to the technical field of modification management of sensitive data files, and in particular relates to a controllable data management method based on block chain privacy protection. Background technique [0002] In data management, for sensitive data and sensitive files, such as house design drawings, etc., users who participate in modifying these sensitive data and sensitive files need to pass identity authentication before they can modify the files. The modified files can be stored locally or on the cloud. . However, if participants modify files in this way, they may encounter illegal file modification or multi-party modification, and cannot find legal files that meet the requirements of most people. [0003] Based on the above problems, in the field of controllable data management, a solution called voting is proposed, and only documents passed through multi-party voting can become legal documents. However, voting parties ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/62H04L9/32H04L29/06
CPCG06F21/6245H04L63/0442H04L63/08H04L9/3247H04L2209/463H04L9/50
Inventor 盖珂珂吴雨璐祝烈煌
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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