Security in the Cloud: A stake holder’s perspective

The cloud computing is a paradigm involving many disparate stake holders. Any system built upon this paradigm and a business run on such system architecture would have similarly disparate scope of access, activities and responsibilities for the stake holders. Depending on the scope of the activities and responsibilities, a stakeholder has to device the security measures to secure his activity space. We formulate the problem formally with this premise. We model and survey, depending upon the generic cloud architecture abstracted from the prominent ones, the actvity space of each stake holder and consequently security measures each stake holder has to take, to ensure the over all security of the system. We survey the recent works related to each facet of the formal model and classify them to present a contemporary perspective.