OpenStack cloud federation with single sign-on via an Identity Management System

The increasing popularity of cloud computing has led to the increased use of virtualization technologies and underlying features. Many virtualization and cloud platforms are being used independently or in conjunction with another environment to offer cloud services. Most of these cloud services are being offered and shared across multiple customers. Multiple customers on the same cloud enable features like multi-tenancy and resource sharing. However, this also raises a few concerns on the identity of the cloud users and confidentiality of the data and its privacy. Many researchers are still working on multi tenancy, data protection and identity management in the field of cloud computing. Hence, this paper presents a Single Sign-On(SSO) solution for a data center that addresses the issues of multi-tenancy and cloud security for IaaS and SaaS applications. The research is carried out with the goal to develop a pluggable middleware for cloud authentication. The middleware should be able to provide SSO using a custom built identity management system called `Membership'. It is possible to integrate cloud services on the service level or the database level. Hence, this paper further discusses the research and testing executed to ensure optimal approach on how Single Sign-On, IDS system `Membership' and cloud services can be integrated to mitigate security risks with the multi-tenant cloud. As a proof of concept, this paper develops a fully functional cloud, offering IaaS and SaaS solutions served over a Single Sign-On