Blockchain Based Data Access Control Method And Application Study

In the era of bigdata,data security is becoming increasingly important.Concepts and principles such as encryption authentication auditing intrusion detection and access control in the traditional network security field are,well,old but not obsolete.Access control is one of the most widely used technologies among them,it will meet the needs of the times with a tiny revise and update which is made using the cutting-edge technologies.This paper takes a dip into traditional access control technologies,such as DAC MAC RBAC ABAC and TBAC,it will elaborate on some of the key features and details of them.This paper also introduces the emerging blockchain technology.And will elaborate on the system architectures and core methods and differences between the blockchain version 1.0 and 2.0.Application scenarios of the blockchain and main stream blockchain platforms are introduced too,among which project hyperledger of the Linux foundation is one of the most stable and mature consortium chains that is highly promoted.Based on the studies previously made,this paper probes into the possibilities of the combination of these two technologies.Using the modeling method,we make the fusion of the functions and specialties of these two technologies possible out of two companies' model,thus a new data access control method based on the block chain is born.We build it on the fabric 1.0 platform,it has the characteristics of the traditional access control system plus security reliability and intrinsic auditing function that the blockchain has brought.Furthermore,due to the decentralized structure of the block chain,a access control method based on which,will suit the distributing environment of the bigdata naturally.This paper highlights the value of the combination of access control and block chain,One time deployment,used everywhere.some of the traditional industries can be upgraded once again using block chain technology exactly the way they used in upgrading using the internet technology,the advantages will pay off for sure.This paper also foresees the trends that the block chain is heading,which is leading by the government,converging all industries.