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Block chain based data access control system

A data access control and data access technology, applied in the Internet field, can solve problems such as anonymous intrusion into user data, and achieve the effect of promoting security and full sharing

Inactive Publication Date: 2017-08-18
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition to ensuring that only legitimate users enter the system, the traditional access control system can also implement authorization and audit functions, but its centralized deployment method makes it easy to become the target of anonymous intrusion and theft of user data

Method used

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  • Block chain based data access control system
  • Block chain based data access control system
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Embodiment Construction

[0022] All the features disclosed in this specification, except mutually exclusive features and / or steps, can be combined in any way.

[0023] Combine below Figure 1 ~ Figure 3 The present invention will be described in detail.

[0024] Blockchain-based data access control system, including

[0025] User layer: users are composed of units and individuals who need to access data, mainly for data analysis and scientific research, such as universities, governments and individual researchers, and for users to send registration applications or data access requests to the next level;

[0026] System management layer: composed of interconnected independent entities, mainly responsible for establishing secure connections, promoting efficient operation of the system, and receiving registration applications or data access requests sent by the upper level;

[0027] Storage layer: It is composed of cloud-based storage and processing structure, mainly responsible for safe storage of dat...

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Abstract

The invention discloses a block chain based data access control system. The block chain based data access control system comprises a user layer used for a user to send a registration application or a data access request to subordinates; a system management layer used for receiving the registration request or the data access request; and a storage layer used for the user layer to perform data access after the registration application and the data access request pass verification. When sending the registration application, password checking and verification between the system management layer and the user layer is carried out for three times, the system management layer generates a transaction public key and a transaction private key based on the last password and hands in the transaction public key to the system management layer for keeping; and when sending the data access request, the system management layer takes out and verifies a block of the data access request which is encrypted by the last password and signed by the transaction private key, and the user obtains the access permission of data stored in the storage layer after the successful verification. The block chain based data access control system solves the technical problem that user data are stolen easily due to adoption of a centralized deployment mode in the prior art.

Description

technical field [0001] The invention belongs to the technical field of the Internet, and in particular relates to a data access control system. Background technique [0002] With the advent of the era of shared data, more and more data is digitized and stored in the cloud. Usually, access control to data is completed through three steps of identification, authentication, and authorization. In addition to ensuring that only legitimate users enter the system, the traditional access control system can also implement authorization and audit functions, but its centralized deployment method makes it easy to become the target of anonymous intrusion and theft of user data. Blockchain is an emerging technology, and its successful application in the cryptocurrency system has led to the development of many new applications. Contents of the invention [0003] The purpose of the present invention is to provide a blockchain-based data access control system, and to develop a secure and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L9/32H04L9/08
CPCH04L63/08H04L9/0825H04L9/0863H04L9/3247H04L63/0428H04L63/06H04L63/083H04L63/10
Inventor 张小松陈永丰夏琦黄可陈瑞东
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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