Research And Implementation Of Data Security Protection System In Cloud Computing Environment

Cloud computing is the key technology in the field of information technology.It is being gradually promoted and penetrated into all aspects of our lives.Many users are attracted by the efficient,convenient and low-cost cloud computing services,which brings huge economic benefits to the market.But also because of the characteristics of cloud environment like openness and centralization,the security problem of cloud environment has been paid more and more attention by users,which of the most important is data security.How to ensure the data security in the cloud environment has become an important study in the field of cloud computing.For the research of data security protection system in cloud environment,the main contents of this paper are as follows:(1)By studying the data security protection schemes of cloud platforms at home and abroad and the key technologies of cloud computing,a data security protection system in cloud environment based on personnel,technology and infrastructure is proposed,including the analysis,corresponding protection schemes and prevention strategies of the data security risks and threat sources in the cloud environment from the perspective of data life cycle.(2)An improved CP-ABE decryption method is proposed by studying the traditional CP-ABE encryption algorithm.And a data access control scheme based on AES and CP-ABE hybrid encryption in cloud environment is also putted forward based on the analysis of the existing encryption technology's advantages aiming at the problem of data security in the cloud storage.Finally,a file management system is designed and realized combined with the research in this paper,which realized the file data security storage and access control in the cloud storage environment.In the aspect of system access control,the traditional role-based access control and hybrid encryption access control are used to effectively guarantee the security of data in the cloud environment.Through eclipse,My SQL and other software,as well as the Alibaba public cloud OSS storage service,the system including relevant functions are tested.The scheme realizes the file encryption and access control in the cloud environment,and effectively guarantees the data security in the cloud environment.And the combination with traditional technology makes the scheme more practical.