This paper presents on-going research to define the basic models and architecture patterns
for federated access control in heterogeneous (multi-provider) multi-cloud and inter-cloud …

This paper outlines the design of an authentication infrastructure for linking distributed
heterogeneous cloud systems managed by different cloud management middleware to …

As distributed, on-line communities are increasingly supported by the global, interconnected
computing infrastructure, methods must be developed to securely manage their interactions …

This paper describes approaches for supporting virtual organizations (VOs) in OpenStack. A
VO provides a security and discovery context whereby collaboration across multiple sites …

Cloud computing is a technological service that has become a trend. This paradigm adds
many benefits to storage of personal health records (PHR) and electronic health records …

This paper describes the implementation of a fast and efficient method to build a cloud
storage environment. In this method, we base on the OpenStack Object Storage (code …

As computing devices become increasingly connected, and at a global scale, methods must
be developed to flexibly, yet securely, manage their interactions. In the most general sense …

Cloud computing is not just a promising approach to the service provisioning: nowadays it
represents the reference model in such field. Several cloud service providers have emerged …

Today, more and more researchers are advocating the use of Clouds to form a virtual
organization. However, the implementation of a cloud based virtual organization presents …

Cloud Computing in recent years has seen enhanced growth and extensive support by the
research community and industry. The advent of cloud computing realized the concept of …