Combined Keyword Search over Encrypted Cloud Data Providing Security and Confidentiality

In this paper proposes multi-user searchable encryption with the help of order preserve encryption for providing efficient encrypted data. when proposed these constructions it formally defines the multiuser settings for ranked keyword search by using searchable symmetric encryption and order preserve symmetric encryption. Consider a dataowner is the administrator who can uploads the files before encrypted into the outsourced cloud server. These files are encrypted in the cloud server which can be shown as an index file for users. The users can login and download the files what ever the document need from the cloud server at the same time so many users can download the files with efiicient and security manner.