International Journal of Advanced Research in Computer and Communication Engineering (IJARCCE)
In recent years due to attractive features of cloud computing, users are storing large amount of data on cloud storage, these data may be users personal or secret. Users remotely store their personal or secret information on cloud storage and enjoy best features of cloud applications without burden on local hardware and software management. After storing data on cloud storage users can access their data by very thin clients. But there is a drawback of outsourcing data on cloud storage is data security risks because users has no control over outsourced data even users are unknown about location of their data.