An overview a summary of important cloudcomputing issues distilled from acm cto roundtables. When comparing cloud providers, you need to be aware of three different pricing dimensions. Cloud computing network as a service naas tutorialspoint. In line with european cloud policies towards government authorities, digit has pioneered the experimentation of cloud computing by the eu. We present the data security problem of cloud computing in the next section and then discuss the details of requirement of security in section 2. For instance, a cloud provider might also host its own customerfacing services on cloud infrastructure. These services are typically provided by third parties using internet technologies. Cloud computing defined cloud computing is a method of delivering information and communication technology ict services where the customer pays to use, rather than necessarily own, the resources. Communicationasaservice caas is a cloud computing based managed service, which is used by the small businesses. Prepared by the national renewable energy laboratory nrel, a national laboratory of the u. The occi lifecycle model with occi, cloud computing clients can invoke a new application stack, manage its lifecycle and. And grid computing is the collection of computer resources from multiple locations to reach a common goal. In fact, cloud symbols are repeatedly used to depict the internet on diagrams.
Cloud computing is not an object in itself, rather it comprises services and database that are accessed via web or any private network. These experts work and meet in an informal expert group called the enisa cloud security and resilience expert group. Cloud computing is a model for enabling ubiquitous, convenient, ondemand network access to a shared pool of configurable computing resources e. Intercloud for utilityoriented federation of cloud computing arxiv. Cloud computing provides us a means by which we can access the applications as utilities, over the internet.
These systems may be based on local server or cloud based. What is cloud computing pdf, benefits of cloud computing. Im running xen in my data center im running a private cloud. Jun 22, 2009 in this primer on cloud computing security, learn about the basics of data security in the cloud, how to secure network infrastructure and devices that interact with cloud based services and the threats and attacks that pose a risk to enterprises. For cloud computing to reach the full potential promised by the technology, it must offer solid information security. Department of energy, office of energy efficiency and renewable energy. Thanks to cloud computing, ibm is able to respond rapidly to customer needs in a far more costeffective manner. It is a representation of a movement towards the intensive, large scale specialization.
Cloud computing is going to create lots of jobs in the market in the coming years. Cloud computing is a model which uses the mixture concept of softwareasaservice and utility co mputing, and provides various ondemand services in a convenient way requested end users. Cheng the hong kong university of science and technology, hong kong, china abstract cloud computing cc has been attracting a huge amount of interest in the postdotcom boom and bust and the current web 2. Isba ethics opinion oks storing client info in the cloud by matthew hector lawyers can store client information on cloud based servers, an isba ethics opinion says, but only if they take the proper precautionary steps. Department of energy national laboratories and plants. The term cloud when talking about technology or computing, is not new. Also, grid computing is applying the resources of many computers in a network to a single problem. For example, cloud computing has enabled ibm to offer customers an extremely. Tenants can use naas to implement custom forwarding decisions based on application needs, for example a loadbalancing any. Cloud computing is the ondemand availability of computer system resources, especially data storage and computing power, without direct active management by the user. Cloud computing the business perspective keen computer. Cloud computing has been encountered with security problems. Cloud computing is a new business model it is a way of delivering computing resources what is cloud computing enisa. Cloud computing an internal audit perspective institute of internal auditors topeka chapter bernard wieger, partner cimhk simcassie meschke, senior manager.
Over the years enisa has written a number of papers on cloud computing with a range of experts on cloud security. Pdf cloud computing analyza situace s iaas v ceske republice. Senthil raja computer science and engineering, srm university senthilraja. Theory download pdf unit i cloud computing fundamentals. It allows us to create, configure, and customize the business applications online. How to evaluate cloud computing providers data center knowledge. Cloud computing is the fundamental change happening in the field of information technology. May 12, 2017 desktop as a service daas is a cloud computing solution in which virtual desktop infrastructure is outsourced to a thirdparty provider. As with all other anythingasaservice xaas related to cloud computing this communication as a service is targeted to reduce the costs is the decisive criterion for their use. Cloud computing and its implications for construction it b. This tutorial will take you through a stepbystep approach while learning cloud computing concepts. Cloud computing benefits, risks and recommendations for.
Tenants, however, have only limited visibility and control over network resources. Cloud computing can transform the way systems are built and services delivered, providing libraries with an opportunity to extend their impacts 1. Data security in cloud computing shucheng yu1, wenjing lou2, and kui ren3 1 university of arkansas at little rock, ar, usa 2 virginia polytechnic institute and state university, va, usa 3 illinois institute of technology, il, usa abstract. Many people or organization often says, well, we are using saas, like something behind the real cloud, these saas, paas and laas. November 09 benefits, risks and recommendations for. Cloud computing and its implications for construction it. Jun 01, 2010 generally, customers are paying for resources on an hourly or monthly basis. An overview 631 ogf open grid forum has started some work to discuss cloud co mputing related standards, wh ich is a standar dization organiza tion like ie tf aiming at p.
An efficient framework for information security in cloud computing using auditing algorithm shell aas m. Much has changed in the realm of cloud computing since the practical guide to cloud. Cloud computing is one of the most advanced technology in the it sector. Virtualization is the key component of cloud computing. Cloud computing and its applications i library n e services. Daas functionality relies on the virtual desktop, which is a usercontrolled session or dedicated machine that transforms ondemand cloud services for users and organizations around the world. Cloud computing definition, types of cloud, cloud services. While one cloud provider might offer cheap computing or storage resources they may make up for it by charging an armandaleg for bandwidth. Index termscloud computing, elibrary services, internet computing. Impacts and challenges of cloud computing and social network sites.
However, there is lack of structured risk assessment approach to do it. The companies in cloud computing offer their services on three models. Benefits and challenges of cloud computing, evolution of cloud computing, usage scenarios and applications, business models around cloud major players in cloud computing. Cloud computing is based on several service models such as saas, paas, naas, dbaas, iaas and many more. Nrel is operated by the alliance for sustainable energy, llc. An information security risk assessment is designed specifically for that task. The term is generally used to describe data centers available to many users over the internet. Cloud computing identity as a service idaas employees in a company require to login to system to perform various tasks. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext.
Cloud computing is the latest major evolution in computing. Isba ethics opinion oks storing client info in the cloud. Learn cloud computing concepts, part 1 from university of illinois at urbanachampaign. An efficient framework for information security in cloud. Cloud computing systems today, whether opensource or used inside companies, are built using a common set of core techniques, algorithms, and design. Cloud computing realises the vision of utility computing. We look at the security benefits of cloud computing and its risks. In simple terms, cloud is a metaphor for the internet. Cloud computing identity as a service idaas tutorialspoint.
Implementation issues of a cloud computing platform bo peng, bin cui and xiaoming li department of computer science and technology, peking university pb,bin. In this paper, we motivate and describe networkasaservice naas, a new cloud computing model in which tenants have access to additional computing resources collocated with switches and routers. Abstract cloud computing is internet based system development in which large scalable computing resources are provided as a service over the internet to users. Tenants can benefit from ondemand provisioning of computational resources according to a payperuse model and can outsource hardware purchases and maintenance. Jun 22, 20 in cloud computing, the word cloud also phrased as the cloud is used as a metaphor for the internet, so the phrase cloud computing means a type of internetbased computing, where different services such as servers, storage and applications are delivered to an organizations computers and devices through the internet. Saas, paas, iaas 1sumit khurana, 2anmol gaurav verma 1,2dept. Cloud computing has become one of the most essential in it trade recently. Cloud computing network as a service naas networkasaservice allows us to access to network infrastructure directly and securely.
What is cloud computing, basic of cloud computing pdf. This paper explains, based on concrete scenarios, what cloud computing means for network and information security, data protection and privacy. In this paper we want to carry out security strategy for cloud computing, the rest of the paper is organized as follows. Cloud computing cloud computing is an extension to grid computing and the serviceoriented architecture 6. Naas uses virtualized network infrastructure to provide network services to the customer.
Security and privacy challenges in cloud computing environments. Sharing the network in cloud computing lucian popa. Clouds and grids are equivalent in the mid 1990s, the term grid was coined to describe technologies that would allow consumers to obtain computing power on demand. Anasuya threse innocent department of computer science and engineering, sct institute of technology, visvesvaraya technological university bangalore, karnataka, india anasuya. Cloud storage for cloud computing 7 of 12 open grid forum ando storage networking industry association gf figure 3. Abstract the network is a crucial resource in cloud computing, but in contrast to other resources such as cpu or memory, the network is currently shared in a best effort manner. Implementation issues of a cloud computing platform. It is a paradigm where computing resources are available when needed, and you pay for their use in much the same way as for household utilities. Aug 16, 2011 we have already discussed about cloud computing, cloud server and private cloud. Recommendations of the national institute of standards and technology. Naas makes it possible to deploy custom routing protocols. Potential and impacts of cloud computing services and social.
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