Chapter 15
Data Security in Cloud Computing
Shucheng Yu, Wenjing Lou, Kui Ren
15.1 Overview
Cloud computing is a new IT infrastructure in which computing resources are provided as a utility to cloud users in the pay-as-you-go manner. By integrating techniques such as Service Oriented Architecture (SOA), virtualization, distributed computing, etc, cloud computing offers elastic, on-demand, and measured services to cloud users anytime, anywhere whenever Internet is available and enables them to enjoy the illusion of unlimited computing resources. The services provided by the cloud can be at different levels of the system stack, which can be described by the terminology of “X as a service (XaaS),” where X could be Software, Infrastructure, Hardware, ...
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