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Abstract
Cloud computing is storage over internet. The cloud user store there data on the cloud and once data is uploaded over the cloud by a particular user then they can access it from anywhere with secure login with the help of internet connection. Cloud can store every type of data such as images, text and video data in an enormous amount. With the ease of data access, it has some security issues. Over the cloud storage, Authentication and Authorization of user is the area where improvement needs to be done. In that, if the user wants to access the data over cloud from any other place, he needs to login before get the access to data or services.