A Distributed Access Control Architecture for Cloud Computing

We present distributed access control architecture for multitenant and virtualized environments. The design of this architecture is based on the principles from security manage­ment and software engineering. From a security management perspective, the goal is to meet cloud users’ access control requirements. From a soft­ware engineering perspective, the goal is to generate detailed specifications of such requirements. The proposed system in order to achieve the securable ,centralized system for cloud based data access models. To build a secure and trusted distributed cloud computing infrastructure, the cloud architecture’s designer must address several authorization requirements. This model look into the Side-channel attacks and interference among different policy domains pose daunting challenges in distributed clouds. Side-channel attacks are based on information obtained from physical implementation (for example, via time- or bandwidth-monitoring attacks). Side-channel attacks arise due to lack of authorization mechanisms for sharing physical resources.