International Journal of Advanced Technology in Engineering and Science (IJATES)
Cloud computing as a developing technology trend is estimated to reshape the advances in info technology. In a cost-efficient cloud infrastructure, a user can tolerate a certain degree of interval while retrieving info from the cloud to decrease costs. In this paper, the authors address two major issues in such an environment: secrecy and efficiency. They first review a secretive keyword based file recovery scheme that was formerly proposed by the researcher. Their structure allows a user to get files of interest from a not trusted server without disclosing any info.