A primary driving force of the recent cloud computing paradigm is its inherent cost effectiveness. As in many basic utilities, such as electricity and water, consumers/clients in cloud computing environments are charged based on their service usage; hence the term ‘pay-per-use’. While this pricing model is very appealing for both service providers and consumers, fluctuating service request volu...

Cloud computing is becoming the new generation computing infrastructure, and many cloud vendors provide different types of cloud services. How to choose the best cloud services for specific applications is very challenging. Addressing this challenge requires balancing multiple factors, such as business demands, technologies, policies and preferences in addition to the computing requirements. Th...

Identity federations enable users, service providers and identity providers from different organizations to exchange authentication and authorization information in a secure way. In this paper we present a novel identity federation architecture for cloud services based on the integration of a cloud identity management service with an Authentication, Authorization and Accounting (AAA) infrastruc...

Cloud Computing plays a vital role in IT field which develop the field of computer in fast manner. Cloud Computing is nothing but sharing of resources to their clients in efficient way. It works under the concept of virtualization and by three different types of service providers such as SaaS, IaaS and PaaS. In cloud computing we come across some problems in security and data stored in the clou...

As an emerging trend for maximizing IT resource utilization, cloud federation raises various technical, economic, and legal issues. In order to understand the future of its adoption among cloud providers, it is important to identify which factors can be driving or inhibiting the process. This study aims at closing this research gap and find out the strength of their inhibiting or facilitating f...

An increasing number of technology enterprises are adopting cloud-native architectures to offer their web-based products, by moving away from privately-owned data-centers and relying exclusively on cloud service providers. As a result, cloud vendors have lately increased, along with the estimated annual revenue they share. However, in the process of selecting a provider’s cloud service over the...

There is a growing trend of using cloud environments for ever growing storage and data processing needs. However, adopting a cloud computing paradigm may have positive as well as negative effects on the data security of service consumers. This paper primarily aims to highlight the major security issues existing in current cloud computing environments. We carry out a survey to investigate the se...

INTRODUCTION ................................................................................... 360 I. CLOUD COMPUTING ................................................................ 362 A. Benefits of Cloud Computing for Service Providers ................. 364 B. Benefits of Cloud Computing for End-Users ........................... 365 C. Cloud Creep and the Rise of Cloud Services as the Pre...

Cloud computing is an emerging distributed computing paradigm that promises to offer cost-effective scalable on-demand services to users, without the need for large up-front infrastructure investments [1]. A key enabling technology for cloud computing is virtualization. With virtualization, service providers can ensure isolation of multiple user workloads, provision resources in a costeffective...