Abstract
Cloud computing users can use at the same time the same cloud service. So, there is a need for having an access control mechanism to ensure that each user cannot access any sensitive data of other users. Several access control models have been proposed for cloud computing. However, these models need to be efficient and scalable due to increased workload (e.g., users, policies, etc.) in the cloud. This paper presents a role based access control model (RBAC) for cloud computing based on naming convention (NC) concept. The WSLA specification language is used for SLAs specification. A naming convention role based access control (NC-RBAC) is presented by modifying the standard RBAC to support the NC. Then, the proposed framework is designed based on the NC-RBAC to offer a simplified designed for the system administration of security in a large institution where there are many users is challenging to control access to resources. The proposed framework is implemented and its efficiency and scalability are measured using an experiment study. The result shows that the proposed framework provides an efficient and scalable access control for cloud computing while provides an administrator with an efficient and simple search method for classifying the cloud users.