Secure Cloud Data Storage Services in the Hybrid Cloud

摘要

Cloud storage is a model of networked online storage where data is stored in virtualized pools of storage which are generally hosted by third parties. Hosting companies operate large data centers and people who require their data to be hosted buy or lease storage capacity from them. The data center operators, in the background, virtualize the resources according to the requirements of the customer and expose them as storage pools, which the customers can themselves use to store files or data objects. Physically, the resource may span across multiple servers. The safety of the files depends upon ths hosting websites. Lack of control on the data and privacy issues are the biggest obstacles to holding valuable personal and business-critical information in the cloud. Encryption and integrity control is one of the most obvious solutions to address these concerns, however it costs additional complexity of the system and service usage and may impact data access performance. In this study, we will discuss about security challenges in hybrid cloud storage and explain how to preserve security in them.