Assured data deletion in cloud computing: security analysis and requirements

With the rapid development of cloud storage, more data owners store their on remote to reduce heavy local storage overhead. Cloud provides clients with a space that they may outsource and use pay-as-you-go basis. Due ownership separation management, lose control over data. Hence, all operations outsourced such as transfer, update, deletion, will be executed by server. As result that, various security challenges appear in terms privacy integrity. In addition deletion becomes an important challenge, once user intends delete his data, it must sure is deleted from sources prevent server reserving maliciously for economic interests. this paper, we present discuss several types research different technologies solve assured problems verification result. The paper also presents thorough analysis surveyed protocols fine-grained, security, performance, requirements design.