An Efficient Privacy-Preserving Ranked Keyword Search Method

The main concern in cloud computing is the searching on the encrypted data. The query is not known to the clouds and searching concept based on the Keyword should show all the files in the cloud. The main aim is to provide the privacy protection and safety to the data that is saved in cloud system. To upload and download a file securely from cloud and to encrypt and decrypt the files from the cloud .To provide keys to users for downloading file from cloud securely. To keep the identity of each user and data owners protected and to store all the information on cloud in protected manner. We proposed a Rank search concept is introduced which takes less time by choosing the desired files along with keyword categories. Data owner provides the file to browser, encrypt and uploads files into the Drivehq in encrypted form. Cloud server will provide following operations such as store encrypted data, view attachers, view owner files, give privileges to user to create index on searched data to view all the android users. User can get the files from the cloud by using their credentials and secret key. User can searches for files based on contents keyword request for secret key, requests for downloading files and retrieve and to store the data.