Social data sharing system based on block chain

A social data and sharing system technology, applied in the blockchain field, can solve problems such as uncontrollable user data and privacy leakage

Active Publication Date: 2020-06-26
FUDAN UNIV
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the present invention is to provide a social data sharing system based on blockchain, by combining blockchain with identity-based proxy re-encryption (IBPRE) technology to solve the problem of user data inaccessibility on existing social network platforms Control and privacy leakage and other issues, to achieve users' independent control of personal social data

Method used

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  • Social data sharing system based on block chain
  • Social data sharing system based on block chain
  • Social data sharing system based on block chain

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below according to specific embodiments and accompanying drawings, but the protection scope of the present invention is not limited to the following embodiments.

[0027] Image 6 It is a schematic diagram of the access control flow of the social network data of the present invention, such as Image 6 As shown, the method may include the following steps:

[0028] 1. The data owner A logs in to the system by calling the login interface of the application layer, and the system authenticates his identity by comparing his account password at the time of registration;

[0029] 2. After the user identity authentication is passed, different access control policies can be specified for different types of social data. The types of social data of users mainly include: user identity information (C1), such as age, gender, email...

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Abstract

The invention belongs to the technical field of block chains, and particularly relates to a social data sharing system based on a block chain. The system is divided into four layers of structures according to logic: an application layer which faces system users, provides a visual operation interface and provides functional interfaces such as registration, data interaction, data authority management and access requests for the users; the encryption service layer is responsible for encrypting the data in the system to ensure the privacy and safety of the data; the blockchain layer runs a consistent consensus algorithm through each node to form a decentralized and tamper-proof social platform blockchain; and the data storage layer uses an IPFS storage mode and is combined with a block chain platform to store the social data of the user. According to the invention, the blockchain and the identity-based proxy re-encryption technology are combined to solve the problems of uncontrollability,privacy leakage and the like of the user data of the existing social network platform, and the autonomous control of the user on the personal social data is realized.

Description

technical field [0001] The invention belongs to the technical field of block chains, and in particular relates to a social data sharing system based on block chains. Background technique [0002] Driven by the mobile Internet and Web2.0 technology, social media has achieved unprecedented development around the world. Existing social network systems mainly use a centralized operating mechanism to manage user data on the platform, and a large amount of user data is collected and stored in a centralized database. The background system can construct accurate user portraits through data mining of user personal information and social data, and then provide personalized recommendation services to users to obtain relevant benefits. For example, Facebook, as one of the world's largest social software platforms, was exposed in March 2018 that 50 million user information data on its platform were used by a third-party company Cambridge Analytica for big data analysis. Features such a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/24H04L29/06H04L29/08
CPCH04L41/044H04L41/046H04L41/22H04L63/0428H04L63/0876H04L67/1095H04L67/1097H04L63/10H04L67/56
Inventor 刘百祥方宁阚海斌张新鹏吴小川
Owner FUDAN UNIV
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