Querying methods of Encrypted Cloud Data

Abstract

In the recent times business organizations are opting for cloud based storage for reducing maintenance and storage cost for which data security is a major issue of concern. The Organizations may not completely rely on security provided by cloud service provider. Instead they would prefer for their own security model. Here data may be in relational or Non-relational with its own structures. If the data stored in the cloud is in encrypted format, querying will be difficult because for every retrieval process, the data has to be decrypted. This is again security problem with server. This paper explores about how to process and query the encrypted data stored in cloud. Different methods of querying, ranging from relational to Non-relational data are discussed in this pape