Research On Cloud Data Security Mechanism Of Coal Mine Safety Supervision Based On Blockchain

In recent years,new technologies such as cloud computing,big data and blockchain have developed rapidly,leading a large number of industries to carry out"Internet +" transformation,and the coal industry is no exception.The research on"Internet +" coal mine safety management and control cloud platform "has been going on for many years,and systems with perfect functions have emerged in an endless stream.However,there is a lack of in-depth research on the protection of coal mine safety supervision data stored on the cloud platform.The security control of coal mine safety supervision cloud data is not only the inevitable trend of industry development and the application of Cyberspace Security Technology,but also the mandatory requirement of relevant national policies and regulations.Therefore,in order to realize the security of coal mine safety supervision cloud data,it is necessary to establish a secure scheme based on the whole life cycle of cloud data.The main work and results of this paper are as follows:(1)Research on grading and classification of coal mine safety supervision data.By analyzing the shortcomings of traditional safety supervision data in classification,a grading and classification method is designed;Divide data access attributes based on the needs of data sharing and access;The coal mine safety supervision data system based on grading and classification and data access attribute is constructed;A data query method based on grading and classification is designed for data query in the system.(2)Research on cloud data secure storage scheme based on blockchain.By studying the recent research progress of blockchain in data storage,this paper analyzes that the current cloud data should pay attention to both security and performance in storage,and puts forward a cloud data secure storage scheme based on blockchain,which stores the authority data on the chain and the coal mine safety supervision cloud data in the Inter Planetary File System,so as to ensure the storage security of cloud data to the greatest extent.(3)Research on cloud data access control based on blockchain.Design the cloud data secure access model of coal mine safety supervision based on blockchain:according to the characteristics of coal mine safety supervision data,design the access right model based on user level and data access attribute,and build the cloud data access control model according to the advantages of blockchain distributed implementation,whole process transparency and tamper proof.The access permission model realizes the graded and classified control of cloud data and the dynamic generation of permissions.The access control model realizes distributed access control,uses intelligent contract to ensure the security of access control,and uses encryption technology to enhance the security protection of authority information.(4)Research on the security scheme of other stages of the whole life cycle of cloud data: analyze the needs of coal mine safety supervision cloud data in audit,archiving and destruction.It is selected to audit cloud data access activities in combination with blockchain.According to the functions and characteristics of IPFS,it can meet the needs of coal mine safety supervision cloud data in archiving and destruction.The research shows that a new supervision mode of platform interoperability,technology sharing and experience circulation has been formed in the field of coal mine safety supervision;In terms of cloud data secure storage,we should pay equal attention to security and efficiency,and blockchain has great potential in cloud data secure storage;In terms of secure access to cloud data,this model can well ensure the security of access control function,and can realize the secure access to cloud data by using blockchain technology;We should pay attention to the security of cloud data archiving and destruction process,formulate a cloud data life cycle security framework and open access scheme,and realize a more comprehensive cloud data security guarantee mechanism.This paper has 26 figures,11 tables and 96 references.