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.
KEY FEATURES ? Becoming more productive by shortening revision cycles ? Writing web applications all in the same codebase and language ? Techniques to save time debugging ? Get applications up and running faster with all-in-one frameworks ? Survey of practical tools and techniques AUDIENCE This book is for web developers who have some experience developing web applications in a more traditional MVC style. Readers should also be familiar with dynamic languages or statically-typed languages in the style of Java or C#.
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.
Foundations of Multidimensional and Metric Data Structures provides a thorough treatment of multidimensional point data, object and image-based representations, intervals and small rectangles, and high-dimensional datasets. The book includes a thorough introduction; a comprehensive survey to spatial and multidimensional data structures and algorithms; and implementation details for the most useful data structures. Each section includes a large number of exercises and solutions to self-test and confirm the reader´s understanding and suggest future directions. The book is an excellent and valuable reference tool for professionals in many areas, including computer graphics, databases, geographic information systems (GIS), game programming, image processing, pattern recognition, solid modeling, similarity retrieval, and VLSI design. First comprehensive work on multidimensional data structures available, a thorough and authoritative treatment An algorithmic rather than mathematical approach, with a liberal use of examples that allows the readers to easily see the possible implementation and use Each section includes a large number of exercises and solutions to self-test and confirm the reader´s understanding and suggest future directions Written by a well-known authority in the area of spatial data structures who has made many significant contributions to the field The author´s website includes: Spatial Index Demos
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 practical guide to modern encryption breaks down the fundamental mathematical concepts at the heart of cryptography without shying away from meaty discussions of how they work. You´ll learn about authenticated encryption, secure randomness, hash functions, block ciphers, and public-key techniques such as RSA and elliptic curve cryptography. You´ll also learn: - Key concepts in cryptography, such as computational security, attacker models, and forward secrecy - The strengths and limitations of the TLS protocol behind HTTPS secure websites - Quantum computation and post-quantum cryptography - About various vulnerabilities by examining numerous code examples and use cases - How to choose the best algorithm or protocol and ask vendors the right questions Each chapter includes a discussion of common implementation mistakes using real-world examples and details what could go wrong and how to avoid these pitfalls. Whether you´re a seasoned practitioner or a beginner looking to dive into the field, Serious Cryptography will provide a complete survey of modern encryption and its applications.
Peter L. Montgomery has made significant contributions to computational number theory, introducing many basic tools such as Montgomery multiplication, Montgomery simultaneous inversion, Montgomery curves, and the Montgomery ladder. This book features state-of-the-art research in computational number theory related to Montgomery´s work and its impact on computational efficiency and cryptography. Topics cover a wide range of topics such as Montgomery multiplication for both hardware and software implementations; Montgomery curves and twisted Edwards curves as proposed in the latest standards for elliptic curve cryptography; and cryptographic pairings. This book provides a comprehensive overview of integer factorization techniques, including dedicated chapters on polynomial selection, the block Lanczos method, and the FFT extension for algebraic-group factorization algorithms. Graduate students and researchers in applied number theory and cryptography will benefit from this survey of Montgomery´s work.
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.
´´. . .the best introduction to cryptography I´ve ever seen. . . .The book the National Security Agency wanted never to be published. . . .´´ -Wired Magazine ´´. . .monumental . . . fascinating . . . comprehensive . . . the definitive work on cryptography for computer programmers . . .´´ -Dr. Dobb´s Journal ´´. . .easily ranks as one of the most authoritative in its field.´´ -PC Magazine ´´. . .the bible of code hackers.´´ -The Millennium Whole Earth Catalog This new edition of the cryptography classic provides you with a comprehensive survey of modern cryptography. The book details how programmers and electronic communications professionals can use cryptography-the technique of enciphering and deciphering messages-to maintain the privacy of computer data. It describes dozens of cryptography algorithms, gives practical advice on how to implement them into cryptographic software, and shows how they can be used to solve security problems. Covering the latest developments in practical cryptographic techniques, this new edition shows programmers who design computer applications, networks, and storage systems how they can build security into their software and systems. What´s new in the Second Edition? * New information on the Clipper Chip, including ways to defeat the key escrow mechanism * New encryption algorithms, including algorithms from the former Soviet Union and South Africa, and the RC4 stream cipher * The latest protocols for digital signatures, authentication, secure elections, digital cash, and more * More detailed information on key management and cryptographic implementations
The 12th International Symposium on Graph Drawing (GD 2004)was held d- ing September 29 October 2, 2004, at City College, CUNY, in the heart of Harlem, New York City. GD 2004 attracted 94 participants from 19 countries. In response to the call for papers, the program committee received 86 re- larsubmissionsdescribingoriginalresearchand/orsystemdemonstrations.Each submissionwasreviewedbyatleastthreeprogramcommitteemembersandc- ments were returned to the authors. Following extensive e-mail discussions, the program committee accepted 39 long papers (11 pages each in the proceedings) and 12 short papers (6 pages each). In addition, 4 posters were displayed and discussed in the conference exhibition room (2 pages each in the proceedings). Theprogramcommittee ofGD 2004invitedtwo distinguishedlecturers.P- fessorPaulSeymourfromPrincetonUniversitypresenteda newcharacterization ofclaw-freegraphs(jointworkwithMariaChudnovsky).ProfessorErikDemaine from MIT reported on his joint work with Fedor Fomin, MohammadTaghi - jiaghayi and Dimitrios Thilikos, concerning fast (often subexponential) ?x- parameter algorithms and polynomial approximation schemes for broad classes of NP-hard problems in topological graph theory. A survey of the subject by Professors Demaine and Hajiaghayi is included in this volume. As usual, the annual graph drawing contest was held during the conference. This time the contest had two distinct tracks: the graph drawing challenge and the freestyle contest. A report is included in the proceedings.