A Trusted Control Model Of Cloud Storage

Cloud computing is a style of computing in which dynamically scalable and oftenvirtualized resources are provided as a service over the Internet. Due to Cloud computing,Companies can greatly reduce IT cost by offloading data and computation to cloudcomputation service. Cloud storage is an extensive and developed new concept in the field ofcloud computation, which is a system composed of the cluster, grid and distributed filesystems that using application software coordinate a variety of different types storage devicestogether to provide data storage and access service. With the help of cloud storage service,users can be easily satisfied without affording the increasing high cost in data centermanagement.However，cloud storage service brings about not only scalability and low cost, but alsogreat challenges in the field of data security and privacy protection. Currently, security hasbeen regarded as one of the greatest problems in the development of cloud storage service.Aiming at the present problem mentioned above, a Trusted Control Model of Cloud Storage(TCMCS) is presented. With the using of cipher-text access control and integrity verificationpreprocessing users’ data, TCMCS made the users’ data secure. Considering the security andefficiency in data sharing, a trusted third party is introduced. Besides, the designing idea ofmiddleware is referenced to shield the difference among cloud storage platforms as well as toseparate security operation and business logic in data operation. Theoretic analysis andsimulation show that this model has made users’ data secure and improved the performance indata processing.