Homomorphic signature schemes are an important primitive for many applications and since their introduction numerous solutions have been presented. Thus, in this work we provide the first exhaustive, complete, and up-to-date survey about the state of the art of homomorphic signature schemes. First, the general framework where homomorphic signatures are defined is described and it is shown how the currently available types of homomorphic signatures can then be derived from such a framework. In addition, this work also presents a description of each of the schemes presented so far together with the properties it provides. Furthermore, three use cases, electronic voting, smart grids, and electronic health records, where homomorphic signature schemes can be employed are described. For each of these applications the requirements that a homomorphic signature scheme should fulfill are defined and the suitable schemes already available are listed. This also highlights the shortcomings of current solutions. Thus, this work concludes with several ideas for future research in the direction of homomorphic signature schemes.
Essay aus dem Jahr 2015 im Fachbereich Informatik - Allgemeines, , Sprache: Deutsch, Abstract: Cloud computing is a new computing technology which has attracted much attention. Unfortunately, it is a risk prone technology since users are sharing remote computing resources, data is held remotely, and clients lack of control over data. Therefore, assessing security risk of cloud is important to establish trust and to increase the level of confidence of cloud service consumers and provide cost effective and reliable service and infrastructure of cloud providers. This paper provides a survey on the state of the art research on risk assessment in the cloud environment.
Virtualisation and Thin Client - a Survey of Virtual Desktop (VDI)
Cloud Risk Assessment & Management Survey Tool for Users and Providers
Seminar paper from the year 2017 in the subject Computer Science - Commercial Information Technology, grade: 2,3, , language: English, abstract: The research goal is to create a survey or a model, which addresses the problems and restrictions that occur during software launch projects. Especially critical success factors which occur in the shakedown phase. With that we want to test, if an implemented ITSM (Service Desk, Incident management process an problem management process) in a company can solve these issues. To achieve the objectives stated before we created a survey (quantitative questionnaire). The results will be analyzed with a regression analysis or similar methods. Geboren und aufgewachsen im Umkreis von Stuttgart in Baden-Württemberg. Abgeschlossene Gymnasialschulausbildung und einen absolvierten Fachhochschulbachelor in Wirtschaftsinformatik (B.Eng). Aktuell in den letzten Zügen eines Betriebswirtschaftlichen Masterstudiums (M.Sc) an einer deutschen Universität. Schreibbegeistert und kreativ als auch sprachlich begabt in Wort und Schrift. Obendrein interessiert an IT-, Wirtschafts-, und auch innovativen Themen rund um IoT und Industrie 4.0
Operational Gaming: An International Approach is the result of research carried out at the International Institute for Applied Systems Analysis (IIASA) situated at Laxenburg (near Vienna), Austria, which relates game theory and system analysis to decision making. The book first shows the relationship of game theory, experimental gaming, and operational gaming through a state-of-the-art survey. This topic includes the history, context, type, and uses of gaming. Then, the text shifts to the discussion on operational gaming, including the definitions of institutional model and game situation concepts. An overview of gaming in different nations including USSR is provided. The book also studies the international transfer of games and the East-West international trade games. The future of this field of study, as well as its implications for humans, is also examined in the latter parts. This book will be of significance to those interested in game theories and those people involved in policy and decision making in their country or organization.
Can computers change what you think and do? Can they motivate you to stop smoking, persuade you to buy insurance, or convince you to join the Army? ´´Yes, they can,´´ says Dr. B.J. Fogg, director of the Persuasive Technology Lab at Stanford University. Fogg has coined the phrase ´´Captology´´(an acronym for computers as persuasive technologies) to capture the domain of research, design, and applications of persuasive computers.In this thought-provoking book, based on nine years of research in captology, Dr. Fogg reveals how Web sites, software applications, and mobile devices can be used to change people´s attitudes and behavior. Technology designers, marketers, researchers, consumers-anyone who wants to leverage or simply understand the persuasive power of interactive technology-will appreciate the compelling insights and illuminating examples found inside. Persuasive technology can be controversial-and it should be. Who will wield this power of digital influence? And to what end? Now is the time to survey the issues and explore the principles of persuasive technology, and B.J. Fogg has written this book to be your guide. Filled with key term definitions in persuasive computing Provides frameworks for understanding this domain Describes real examples of persuasive technologies
Bachelor Thesis from the year 2014 in the subject Computer Science - General, University of Derby, course: Computing and Information Technology, language: English, abstract: Over the last few years social network websites have become a global phenomenon and brought great social impact across the world. Such happenings deserve to be studied and their many aspects investigated thoroughly. The aim of this study was to explore the motives and preferences of users on Facebook. The data was obtained through an online survey on 383 random participants. The result confirmed that Facebook has become a powerful medium of communication. Younger people between ages 14 to 21 are the users who spend more time on Facebook and like to chat with school friends, while age 22 and up chat more with old friends and family members. A sense of security is shown across all ages, gender and education level as in the majority the participants declared that their profile can be only viewed by friends and that they have few unknown friends on Facebook.
Oncology Informatics: Using Health Information Technology to Improve Processes and Outcomes in Cancer Care encapsulates National Cancer Institute-collected evidence into a format that is optimally useful for hospital planners, physicians, researcher, and informaticians alike as they collectively strive to accelerate progress against cancer using informatics tools. This book is a formational guide for turning clinical systems into engines of discovery as well as a translational guide for moving evidence into practice. It meets recommendations from the National Academies of Science to reorient the research portfolio toward providing greater cognitive support for physicians, patients, and their caregivers to improve patient outcomes. Data from systems studies have suggested that oncology and primary care systems are prone to errors of omission, which can lead to fatal consequences downstream. By infusing the best science across disciplines, this book creates new environments of Smart and Connected Health. Oncology Informatics is also a policy guide in an era of extensive reform in healthcare settings, including new incentives for healthcare providers to demonstrate meaningful use of these technologies to improve system safety, engage patients, ensure continuity of care, enable population health, and protect privacy. Oncology Informatics acknowledges this extraordinary turn of events and offers practical guidance for meeting meaningful use requirements in the service of improved cancer care. Anyone who wishes to take full advantage of the health information revolution in oncology to accelerate successes against cancer will find the information in this book valuable. Presents a pragmatic perspective for practitioners and allied health care professionals on how to implement Health I.T. solutions in a way that will minimize disruption while optimizing practice goals Proposes evidence-based guidelines for designers on how to create system interfaces that are easy to use, efficacious, and timesaving Offers insight for researchers into the ways in which informatics tools in oncology can be utilized to shorten the distance between discovery and practice Bradford (Brad) Hesse was appointed Chief of the National Cancer Institutes (NCI) Health Communication and Informatics Research Branch (HCIRB) in November, 2006. He served as the Acting Chief of HCIRB from 2004-2006. Dr. Hesses professional focus is bringing the power of health information technologies to bear on the problem of eliminating death and suffering from cancer, a cause to which he remains steadfastly dedicated. While at the NCI, he has championed several initiatives that evaluate and progress the science of cancer communication and informatics, including the Health Information National Trends Survey (HINTS) and the Centers of Excellence in Cancer Communication (CECCR). As director of NCIs biennial Health Information National Trends Survey (HINTS), Dr. Hesse is responsible for leading a team of scientists in the development and execution of this nationally representative, general population survey of American adults. HINTS, now entering its fourth iteration, systematically evaluates the publics knowledge, attitudes and behaviors relevant to cancer control in an environment of rapidly changing communication technologies. Dr. Hesse also serves as the program director for NCIs Centers of Excellence in Cancer Communication Research (CECCR). This initiative supports the research of four centers aimed at increasing the knowledge of, tools for, access to, and use of cancer communications by the public, patients, survivors, and health professionals. The centers have been instrumental in defining the next generation of interdisciplinary collaboration in cancer communication science. Prior to his work at NCI, Dr. Hesse conducted research in the interdisciplinary fields of human computer interaction, health communication, medical informatics, and computer-supported decision making. In 1988, he served as a postdoctoral member of the Committee for Social Science Research on Computing at Carnegie Mellon University, and subsequently co-founded the Center for Research on Technology at the American Institutes for Research in Palo Alto, California in 1991. Working in a contract environment before coming to NCI, Dr. Hesse directed projects for the Departments of Education and Labor, the Centers for Disease Control and Prevention, and the National Institutes of Health. He has also
This volume presents the multivariate tools and production technologies of digital music culture and their diverse manifestations in a historical context. It also discusses their complex interrelationships, thus furnishing a comprehensive survey of the potentials of all currently used methods. Joachim Stange-Elbe , Universität Osnabrück, Hamburg und Lübeck.