Lecture_10_Fall_11 - CongWang Advisor:Dr.KuiRen...

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Cong Wang Advisor: Dr. Kui Ren Department of ECE, Illinois Ins=tute of Technology
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Cloud Compu=ng Background Security Goals Formula=on Virtualiza=on and Its Security Cloud Data Storage Security Concluding Remarks
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Let’s hear from the “experts”
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Larry Ellison , founder of Oracle We’ve redefined Cloud Computing to include everything that we already do. . . . I don’t understand what we would do differently in the light of Cloud Computing other than change the wording of some of our ads.
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Richard Stallman Founder of GNU It’s stupidity . It’s worse than stupidity : it’s a marketing hype campaign
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Tim O’Reilly, CEO O’Reilly Media I think it is one of the foundations of the next generation of computing
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We are at the beginning of the age of planetary computing. Billions of people will be wirelessly interconnected, and the only way to achieve that kind of massive scale usage is by massive scale, brutally efficient cloud-based infrastructure.” Dan Farber, Editor in Chief CNET News
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Ron Rivest The R of RSA Cloud Computing will become a focal point of our work in security. I’m optimistic …
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On Google Scholar: cited > 500 times since 2009 ±
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Cloud Computing refers to both the applications delivered as services over the Internet and the hardware and systems software in the datacenters that provide those services. The services themselves have long been referred to as Software as a Service (SaaS). The datacenter hardware and software is what we will call a Cloud . When a Cloud is made available in a pay-as-you-go manner to the general public, we call it a Public Cloud; the service being sold is Utility Computing . We use the term Private Cloud to refer to internal datacenters of a business or other organization, not made available to the general public. Thus, Cloud Computing is the sum of SaaS and Utility Computing, but does not include Private Clouds .” (pg. 1)
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Cloud: data center hardware and software SaaS: applications delivered as services over the Internet Utility Computing: Computing resources sold as metered services Cloud Computing: SaaS + Utility computing
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SaaS: SoIware as a Service Concept appeared in 2001. With SaaS, a provider licenses an applica=on to customers as a service on demand , through a subscrip=on or a " pay‐as‐you‐ go " model. Widely deployed for sales force automa=on, CRM, billing, Fnancials, document management and etc. E.g. using Google Maps AP± to generate routes. Enabling technique: Service‐Oriented‐Architecture (SOA) Saving local soIware deployment
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U=lity Compu=ng Not a new concept. Proposed in 60’s, and r e‐surfaced in late 90’s. U"lity compu=ng is the packaging of compu=ng resources, such as computa=on, storage and services, as a metered service similar to a tradi=onal public u=lity.
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