Font Size: a A A

Research And Implementation Of Access Control Technology On Data Supply Chain

Posted on:2019-05-10Degree:MasterType:Thesis
Country:ChinaCandidate:R D HuFull Text:PDF
GTID:2348330542998176Subject:Computer Science and Technology
Abstract/Summary:PDF Full Text Request
In the era of big data,the speed of data generation is rapidly rising,the activities related to data becoming increasingly frequent.Data transfer,data sharing,data exchange and data transaction as the main form of data flow,which is an important part of the large data industry,and the data supply chain is formed.Data supply chain not only satisfies users'demand for access and query conveniently in the course of data publishing,data circulation and data aggregation,but not all users have permission to access granularity information of all data supply chains in the platform,resulting the problem that user can access the data attribute information randomly.Therefore,it is necessary to design a reasonable access control strategy and a data supply chain access control algorithm to ensure the security of the data service platform.In view of the above problems,this paper investigates the current research situation of data supply chain and the technology of security protection in big data environment.On the basis of access control technology,a hierarchical access control strategy is proposed in order to build a data supply chain access control system,which including the access control strategy of the chain and the access control strategy of the node.Based on the access control strategy,the chain access control algorithm based on the graph model is proposed to calculate the visibility of the chain nodes.Then,an attribute based node access control algorithm is proposed to determine the fine-grained information visibility of the nodes on the chain,including the node basic information,the node owner information,the node operation information and the node content.Finally,based on the above theory,the visualization method of data supply chain is studied,and the access control module is deployed on the data management platform.Lastly,an appropriate mapping tool and language are selected to realize the visualization presentation of controlled data supply chain.Based on the data supply chain model,this paper studies and designs a data supply chain access control system.Through functional testing and system performance analysis,the test results are in line with expectations,which can ensure the safety of data supply chain,and verify the scientificity and effectiveness of the access control policies and access control algorithms proposed in this paper.
Keywords/Search Tags:access control, data supply chain, policy, visualization
PDF Full Text Request
Related items