Secured Re-Encryption in Un-Reliable Cloud Using File Sharing

A key approach for secure cloud computing is for data owner to store encrypted data in the cloud, and issue decryption key to authorized users. Then when a user is revoked, the data will automatically be re-encrypted on the cloud to prevent the data from any outside attack. In this the data is encrypted and decrypted in a flow. We have also done the data file sharing and group sharing in this project so data can be shared to valid users at the same time.