The Society of American Magicians
Cloud computing gains users to store their data into the cloud as the remotest manner so that they can be comforted from the trouble of local data save and maintenance. The user loses the control of his remotely located data. This feature has many security challenges such as the authority and integrity of data. One of the significant concerns that require to be addressed is to assure the user of the integrity i.e. rightness of his data in the cloud. Continuously, the user cannot access to cloud's data directly.