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International Journal of Advanced Computer Science and Applications(IJACSA), 4(9), 2013 ; Cloud computing in its various forms continues to grow in popularity as organizations of all sizes seek to capitalize on the cloud's scalability, externalization of infrastructure and administration and generally reduced application deployment costs. But while the attractiveness of these public cloud services is obvious, the ability to capitalize on these benefits is significantly limited for those organization requiring high levels of data security. It is often difficult if not impossible from a legal or regulatory perspective for government agencies or health services organizations for instance to use these cloud services given their many documented data security issues. As a middle ground between the benefits and security concerns of public clouds, hybrid clouds have emerged as an attractive alternative; limiting access, conceptually, to users within an organization or within a specific subset of users within an organization. Private clouds being significant options in hybrid clouds, however, are still susceptible to security vulnerabilities, a fact which points to the necessity of security frameworks capable of addressing these issues. In this paper we introduce the Treasure Island Security Framework (TISF), a conceptual security framework designed to specifically address the security needs of private clouds. We have based our framework on a Distributed Key and Sequentially Addressing Distributed file system (DKASA); itself borrowing heavily from the Google File System and Hadoop. Our approach utilizes a distributed key methodology combined with sequential chunk addressing and dynamic reconstruction of metadata to produce a more secure private cloud. The goal of this work is not to evaluate framework from an operational perspective but to instead provide the conceptual underpinning for the TISF. Experimental findings from our evaluation of the framework within a pilot project will be provided in a subsequent work. ; http://thesai.org/Downloads/Volume4No9/Paper_13-A_Distributed_Key_Based_Security_Framework.pdf

The main objective of this paper is to discuss financial benefits of a private cloud for the local government. A traditional approach in financial analysis of using IT in the public sector is analysed. At first, the article describes some methods used to assess the benefits of using IT in the context of the existing literature. Then considerations are presented concerning investment processes of IT in the units of local government. The issues related to nature of co-financing of IT projects from European Funds are discussed. In addition, legal and organisational requirements for this are indicated. In the following part we present the local administration's perception of financial advantages of cloud computing. These considerations are supported by the material derived from interviews conducted in several local government units. The summary contains conclusions and talks about the need for developing a method that would allow to analyse the financial benefits for the local administration generated by a private cloud.

Cloud computing technology has been emerging and spreading at a great pace due to its service oriented architecture, elasticity, cost-effectiveness, etc. Many organizations are using Infrastructure-as-a-Service (IaaS) public Clouds for data migration away from traditional IT Infrastructure but there are a few fields such as finance, hospitals, military and others that are reluctant to use public Clouds due to perceived security vulnerability. Enterprises in such fields feel more vulnerable to security breaches and feel secure using in-house IT infrastructure. The introduction of private Clouds is a solution for these businesses. Private Clouds have been substituted for the traditional IT Infrastructure due to its flexible ``pay-as-you-go" model within an organization by departments and enhanced privacy relative to public Clouds in the form of administration control and supervision. Goal of my thesis is to build and evaluate a private Cloud that can provide virtual machines (VMs) as a service and applications as a service. To achieve this goal, in my thesis, I have built and evaluated a service oriented IaaS model of private Cloud. I have used off-the-shelf servers and open-source software for this purpose. I have proposed a new replication strategy using an Openstack component called Cinder. My experiments show that efficient VM failure recovery on the basis of ``preparation delay" time can be achieved using my strategy. I have studied a real-world application of option pricing from the finance market and have used that application for the purpose of testing my private Cloud for compute workload and accuracy of the pricing results. Later, I have compared performance between Cloud VMs and standalone servers. The performance of Cloud VM is found to be better to standalone servers as long as the number of virtual CPUs (vCPUs) are limited to single node. Stratus clouds are groups of small clouds that collectively give a spectacular sight in the sky. The private Cloud I have built uses multiple small modules to ...

The main objective of this paper is to discuss financial benefits of a private cloud for the local government. A traditional approach in financial analysis of using IT in the public sector is analysed. At first, the article describes some methods used to assess the benefits of using IT in the context of the existing literature. Then considerations are presented concerning investment processes of IT in the units of local government. The issues related to nature of co-financing of IT projects from European Funds are discussed. In addition, legal and organisational requirements for this are indicated. In the following part we present the local administration's perception of financial advantages of cloud computing. These considerations are supported by the material derived from interviews conducted in several local government units. The summary contains conclusions and talks about the need for developing a method that would allow to analyse the financial benefits for the local administration generated by a private cloud. ; Artykuł dotyczy omówienia wybranych aspektów finansowych wpływających na kształtowanie się korzyści finansowych powstających dzięki wykorzystywaniu przetwarzania w chmurze obliczeniowej. W części wstępnej znajduje się wprowadzenie na temat sposobów oceny korzyści finansowych w IT w sektorze publicznym w ujęciu literaturowym. Następnie opisane są uwarunkowania prowadzenia inwestycji IT w jednostkach samorządu terytorialnego. Poruszane są zagadnienia związane ze specyfiką współfinansowania przedsięwzięć informatycznych ze środków pochodzących z funduszy europejskich oraz wskazane wymogi prawne i organizacyjne związane z procesem planowania i rozliczania tworzenia systemów IT. W dalszej części przedstawione jest, w jaki sposób postrzega się na poziomie lokalnej administracji możliwości powstawania korzyści finansowych dzięki wykorzystywaniu przetwarzania w chmurze. Rozważania te są poparte materiałem pochodzącym z wywiadów, przeprowadzonych w kilku jednostkach samorządowych. Podsumowanie zawiera wnioski dotyczące potrzeby opracowania metody analizy korzyści finansowych powstających dzięki prywatnej chmurze obliczeniowej administracji lokalnej.

Cloud Computing is being widely adopted globally due to its economies of scale, convenience and operational agility to organizations. With Cloud computing, organizations, institutions and companies no longer need to invest heavily in such resources, but instead have the option to migrate to a Cloud model enabling them to purchase or lease resources on line. In an economic context where companies are seeking to make the most from their investments and minimize operating costs, Cloud computing is seen as the solution for competitiveness. The benefits of Cloud computing are therefore of immense importance to the developmental needs of sub-Saharan African countries especially under the Information Communication and Technology for Development (ICT4D) program and the Smart Cities agenda. However, most developing countries, especially those in Sub-Saharan Africa stand the risk of not benefiting fully from the potential of Cloud computing service due to the absence of effective and well-structured decision making process of stakeholders and their accountabilities in Cloud implementation given that one of the basic principles of Cloud computing is that data may be posted or stored "anywhere in the world". This research is an empirical based study that elicited concerns on Cloud services governance and regulation militating against the rapid adoption and use of Cloud computing in Ghana. Respondents were made up of ICT officers who were in the decision making roles regarding the adoption and implementation of Cloud computing in their respective organizations. The results showed that the diversity of technology, service offerings and lack of coherent legislations and governance hindered Cloud service implementation. This has led to many organizations in developing countries sticking to their data centres and private Clouds in a bid to remain "safe" and "own" their data rather than venture into the "unknown" Cloud where ownership and governorship policies are unclear.

Cloud Computing ist zwischenzeitlich sowohl im privaten als auch beruflichen Bereich kaum noch wegzudenken. Berufsgeheimnisträger – wie Ärzte und Rechtsanwälte – stellen derartige Entwicklungen jedoch häufig vor große Herausforderungen. Für sie gelten besondere Vorschriften, die mit dem »Gesetz zur Neuregelung des Schutzes von Geheimnissen bei der Mitwirkung Dritter an der Berufsausübung schweigepflichtiger Personen« und der Datenschutzgrundverordnung der EU vor noch nicht allzu langer Zeit einige Änderungen erfahren haben. Inwieweit bestehen für Ärzte und Rechtsanwälte nach der nunmehr geltenden »neuen« Rechtslage straf, datenschutz- und berufsrechtliche Sanktionsrisiken? Dieser Frage geht Michael Busching in seiner Untersuchung nach. Hierbei werden sowohl die einschlägigen Sanktionsvoraussetzungen sowie damit zusammenhängende Probleme benannt und systematisch abgearbeitet als auch mögliche Maßnahmen erörtert, durch die eine Sanktionierung unter Umständen vermieden werden kann.