Design And Implementation Of Security Data Storage System Based On Cloud Storage

The development of cloud storage technology provides people with a high scalability,easily accessible and inexpensive remote data repository.For businesses that are difficult to maintain their own storage facilities,and individual users who want to use the convenience of personal cloud storage services,cloud storage has a very big attraction.However,cloud storage security issues also hinder many companies and individuals to use cloud storage services.In this paper,the design and implementation of a secure data storage system based on cloud storage is a cloud storage system,which provides data confidentiality protection and data integrity protection without sacrificing the practicality.In this paper,we use the symmetric encryption technology which can support dynamic data,which makes it easy for users to search and manage the encrypted file data stored on the cloud platform.Our system provides full support for public verification dynamic and data retrievability,and according to different computation and the amount of data transmission,to the user provides several different solutions to protect the integrity,to meet diverse demands.And we based on the technology of digital signature in the integrity verification scheme joined the non repudiation of the characteristics,makes the system integrity verification has more reasonable and persuasive.In this paper,the design of the system in the open source OpenStack cloud platform,based on the Object Storage OpenStack storage service to build,through experiments on the system function and performance were tested.