International Journal of Computer Science and Mobile Computing (IJCSMC)
Cloud computing becomes popular because of its provision of flexible access to the cloud databases which allows users to access and extract the sensitive information whenever they require. The storing and accessing of information through the third party server or proxy server increases the burden of the users which leads to the time complexity and memory complexity. When the information are stored and accessed through the cloud server r proxy server, security becomes the main concern, where there is a possibility collusion of data contents. The collusion occurs because the cloud servers are not fully trustable.