Cloud Computing Security: Fine-grained analysis and Security approaches

Cloud computing is a new paradigm for hosting and delivering services over the internet. In this paper, we aim to pinpoint the challenges and issue related to the Cloud computing security and also to discuss some promising approaches to encounter these concerns. Despite the potential benefits that cloud computing offers, the model security is not mature yet. Indeed. security is considered as the major obstacle to faster and more widespread adoption of cloud computing. In the scope of this paper, we will emphasize the impact of the cloud computing characteristics and properties such as Multitenancy and Elasticity on the security model. We will provide detailed analysis of the risks associated with these properties and also with the Virtualization which is a cornerstone of some cloud implementations. A second part of this paper will be dedicated to discuss some promising approaches to overcome the security issues in the cloud paradigm.