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Implementation method of data security sharing mechanism under privacy protection based on blockchain

A technology for data sharing and privacy protection, applied in digital data protection, computer security devices, electronic digital data processing, etc., to achieve the effect of solving user identity privacy leakage

Pending Publication Date: 2021-07-09
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of protecting the identity privacy of the data owner and the data sharing party during the file data sharing process

Method used

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  • Implementation method of data security sharing mechanism under privacy protection based on blockchain
  • Implementation method of data security sharing mechanism under privacy protection based on blockchain
  • Implementation method of data security sharing mechanism under privacy protection based on blockchain

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Embodiment Construction

[0032] Attached below Figure 1 to Figure 3 The present invention is further described.

[0033] A method for implementing a data security sharing mechanism under privacy protection based on blockchain, characterized in that:

[0034] The method uses a traceless random access machine to process data requests from data sharing request users;

[0035] When the traceless random access machine is initialized, the data generated by the data owner is encrypted and uploaded to the blockchain for storage, and the encrypted file data is stored on the blockchain node to prevent untrusted blockchain nodes Spy on user privacy directly through file data with malicious users;

[0036] The blockchain node reorganizes and stores the data in the traceless random access machine by parsing the obtained new blocks;

[0037] Moreover, in the process of data sharing access, all data is shared through the non-trace random access machine to prevent malicious attackers from illegally obtaining user...

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Abstract

The invention discloses a method for implementing a data security sharing mechanism under privacy protection based on blockchain. When the traceless random access machine is initialized, a data owner encrypts file data and uploads the encrypted file data to the blockchain for data storage, so an untrusted blockchain node and a malicious user are prevented from directly prying user privacy through the file data; meanwhile, the security of the data is protected by using decentration and tamper-proofing of the blockchain. According to the method, the blockchain is used for data sharing, the personal data of the user is bound with the digital identity of the user, the transfer of data ownership from a central mechanism to individuals is realized, the data is encrypted by a data owner, and other system participants have no right to access the data without authorization of the data owner. For the privacy problem in the private data sharing process, the scheme utilizes the traceless random access machine and the trusted hardware to protect the privacy of the data and the privacy of the personal information of the user in the data sharing process.

Description

technical field [0001] The invention relates to a method for realizing a data security sharing mechanism under privacy protection based on a block chain. Background technique [0002] In recent years, blockchain technology has developed rapidly. Using blockchain platforms for multi-party data sharing can avoid the use of central institutions in traditional data sharing mechanisms, thereby shifting the ownership of data from central institutions to individuals and improving users' control over personal data. . Secondly, the problem of data privacy leakage in the process of data sharing is becoming more and more serious. At present, there are many researches on privacy issues in the process of data sharing. For example, malicious observers can infer the content of private data and user personal identity etc. For example, for data that seriously involves user privacy, such as medical data, the security of the data itself and the privacy of users must be considered. At the sa...

Claims

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Application Information

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IPC IPC(8): G06F21/62G06F21/60G06F21/53
CPCG06F21/6245G06F21/602G06F21/604G06F21/53G06F2221/2107
Inventor 齐赛宇宋宏宇鹿又水齐勇
Owner XI AN JIAOTONG UNIV
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