Dynamic Access Control Model for Cloud Computing

Cloud Computing paradigm motivates researchers from both industry and academia with lot of research issues. Right from small and medium sized businesses and large scale businesses and even a single individual start utilizing cloud for their demands in terms of storage, software as well as infrastructure elastically and pay on use basis. But this transition to the cloud poses many security issues. One predominant issue is data security breach at many levels. Traditional cryptographic techniques and access control models like Mandatory, Discretionary and Role Based Access Control models are illsuited for addressing multifarious security breaches in the cloud. This paper proposes dynamic access control for securing data in the cloud. This approach considers the interrelationship between the requestor, data being requested and action to be performed on that data. We also consider the context of the user for granting access control dynamically. In this paper, we enlighten the framework, its components and furthermore present an initial implementation of our model and some of the results of the same.