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This paper presents the concept of Open Cloud eXchange (OCX) that has been proposed to bridge the gap between two major components of the cloud services provisioning infrastructure: Cloud Service Provider (CSP) infrastructure, and cloud services delivery infrastructure which in many cases requires dedicated local infrastructure and quality of services that cannot be delivered by the public Internet...
In cloud computing, data are managed by different entities, not only by the actual data owner but also by many cloud providers. Sophisticated clouds collaboration scenarios may require that the data objects are distributed at cloud providers and accessed remotely, while still being under the control of the data owners. This brings security challenges for distributed authorization and trust management...
Cloud computing is developing as a new wave of ICT technologies, offering a common approach to on-demand provisioning of computation, storage and network resources which are generally referred to as infrastructure services. Most of currently available commercial Cloud services are built and organized reflecting simple relations between a single provider and multiple customers with simple security...
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