Privacy Preserving Data Storage And Retrieval In Cloud

The cloud data storage and retrieval-centric CSP represents the client's environmental-centric encryption approaches toavert or limit unauthorized access and to ensure the data privacy. It renders the services of flexible Data Storage and high-securable data delivery. As Cloud Computing becomes eminent, innumerable sensitive information, namely Personal Health Records (PHR), emails, private videos and photos, government documents, company financial data, etc are now centralized to the cloud (Jin Li and Xiaofeng Chen 2013). By storing loads of data to the cloud, the Data Owners(Data owner) could be relieved as of the burden of Data Storage and maintenance and thereby they could attain the on-demand higher-quality Data Storage service.