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Resolvability And Strong Secrecy For The Multiple Access Channel With Cooperation
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Book Synopsis Resolvability and Strong Secrecy for the Multiple Access Channel with Cooperation by : Noha Helal
Download or read book Resolvability and Strong Secrecy for the Multiple Access Channel with Cooperation written by Noha Helal and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We study secret communication over the discrete memoryless multiple-access channel with the following cooperation strategies: (i) degraded message sets, (ii) a common message, (iii) conferencing, (iv) cribbing, (v) feedback, and (vi) generalized feedback. For developing strong secrecy results, we utilize the methods and techniques of channel resolvability, which involves the characterization of the amount of randomness required at the inputs of the channel to approximately produce a chosen i.i.d. output distribution. For the multiple-access with degraded message sets, a common message, conferencing and feedback, we exactly characterize the channel resolvability region. For the multiple access channel with cribbing, we exactly characterize the channel resolvability region for the causal cribbing and non-causal cribbing scenarios. For the strictly-causal cribbing scenario, inner and outer bounds are provided. For the multiple-access channel with generalized feedback, we provide two inner bounds representing the role of decoding and randomness extraction, which can also be combined. Finally, leveraging the resolvability results, we derive achievable strong secrecy rate regions for each of the cooperation scenarios.
Book Synopsis Secrecy and Covertness in the Presence of Multi-casting, Channel State Information, and Cooperative Jamming by : Hassan ZivariFard
Download or read book Secrecy and Covertness in the Presence of Multi-casting, Channel State Information, and Cooperative Jamming written by Hassan ZivariFard and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: We study secret communication over multi-transmitter multicast problem in the presence of an eavesdropper, wherein weak and strong secrecy regimes are studied. For the weak secrecy regime, the method of Chia and El Gamal is extended to two transmitters. We show that the achievable region calculated for the weak secrecy regime in this channel configuration is no bigger than the one calculated under strong secrecy. Two examples are presented in which the inner and outer bounds of secrecy region meet. In the process, we also characterize the minimum amount of randomness necessary to achieve secrecy in the multiple-access wiretap channel. We consider the problem of covert communication over a state-dependent channel when the Channel State Information (CSI) is available either non-causally, causally, or strictly causally, either at the transmitter alone, or at both transmitter and receiver. In contrast to previous work, we do not assume the availability of a large shared key at the transmitter and legitimate receiver. Instead, we only require a secret key with negligible rate to bootstrap the communication and our scheme extracts shared randomness from the CSI in a manner that keeps it secret from the warden, despite the influence of the CSI on the warden’s output. When CSI is available at the transmitter and receiver, we derive the covert capacity region. When CSI is only available at the transmitter, we derive inner and outer bounds on the covert capacity. We also provide examples for which the covert capacity is positive with knowledge of CSI but is zero without it. We consider the problem of covert communication in the presence of a cooperative jammer. It is known that in general, a transmitter and a receiver can communicate only O( √ n) covert bits over n channel uses, i.e., zero rate. Here, we show that a cooperative jammer can facilitate the communication of positive covert rates, subject to the presence of friendly jammer in the environment. We consider various scenarios in which it is possible to achieve positive rate for covert communication. For these scenarios, we derive inner and outer bounds on the covert capacity region, and also we characterize the covert capacity region for some of these scenarios.
Book Synopsis Guide to Bluetooth Security by : Karen Scarfone
Download or read book Guide to Bluetooth Security written by Karen Scarfone and published by DIANE Publishing. This book was released on 2009-05 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document provides info. to organizations on the security capabilities of Bluetooth and provide recommendations to organizations employing Bluetooth technologies on securing them effectively. It discusses Bluetooth technologies and security capabilities in technical detail. This document assumes that the readers have at least some operating system, wireless networking, and security knowledge. Because of the constantly changing nature of the wireless security industry and the threats and vulnerabilities to the technologies, readers are strongly encouraged to take advantage of other resources (including those listed in this document) for more current and detailed information. Illustrations.
Book Synopsis Introduction to Information Security by : Timothy Shimeall
Download or read book Introduction to Information Security written by Timothy Shimeall and published by Newnes. This book was released on 2013-11-12 with total page 383 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most introductory texts provide a technology-based survey of methods and techniques that leaves the reader without a clear understanding of the interrelationships between methods and techniques. By providing a strategy-based introduction, the reader is given a clear understanding of how to provide overlapping defenses for critical information. This understanding provides a basis for engineering and risk-management decisions in the defense of information. Information security is a rapidly growing field, with a projected need for thousands of professionals within the next decade in the government sector alone. It is also a field that has changed in the last decade from a largely theory-based discipline to an experience-based discipline. This shift in the field has left several of the classic texts with a strongly dated feel. Provides a broad introduction to the methods and techniques in the field of information security Offers a strategy-based view of these tools and techniques, facilitating selection of overlapping methods for in-depth defense of information Provides very current view of the emerging standards of practice in information security
Book Synopsis Securing Wireless Communications at the Physical Layer by : Ruoheng Liu
Download or read book Securing Wireless Communications at the Physical Layer written by Ruoheng Liu and published by Springer Science & Business Media. This book was released on 2009-12-01 with total page 403 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses specifically on physical layer security, a burgeoning topic in security. It consists of contributions from the leading research groups in this emerging area, and for the first time important high-impact results are collected together.
Book Synopsis Cryptography's Role in Securing the Information Society by : National Research Council
Download or read book Cryptography's Role in Securing the Information Society written by National Research Council and published by National Academies Press. This book was released on 1996-11-29 with total page 721 pages. Available in PDF, EPUB and Kindle. Book excerpt: For every opportunity presented by the information age, there is an opening to invade the privacy and threaten the security of the nation, U.S. businesses, and citizens in their private lives. The more information that is transmitted in computer-readable form, the more vulnerable we become to automated spying. It's been estimated that some 10 billion words of computer-readable data can be searched for as little as $1. Rival companies can glean proprietary secrets . . . anti-U.S. terrorists can research targets . . . network hackers can do anything from charging purchases on someone else's credit card to accessing military installations. With patience and persistence, numerous pieces of data can be assembled into a revealing mosaic. Cryptography's Role in Securing the Information Society addresses the urgent need for a strong national policy on cryptography that promotes and encourages the widespread use of this powerful tool for protecting of the information interests of individuals, businesses, and the nation as a whole, while respecting legitimate national needs of law enforcement and intelligence for national security and foreign policy purposes. This book presents a comprehensive examination of cryptographyâ€"the representation of messages in codeâ€"and its transformation from a national security tool to a key component of the global information superhighway. The committee enlarges the scope of policy options and offers specific conclusions and recommendations for decision makers. Cryptography's Role in Securing the Information Society explores how all of us are affected by information security issues: private companies and businesses; law enforcement and other agencies; people in their private lives. This volume takes a realistic look at what cryptography can and cannot do and how its development has been shaped by the forces of supply and demand. How can a business ensure that employees use encryption to protect proprietary data but not to conceal illegal actions? Is encryption of voice traffic a serious threat to legitimate law enforcement wiretaps? What is the systemic threat to the nation's information infrastructure? These and other thought-provoking questions are explored. Cryptography's Role in Securing the Information Society provides a detailed review of the Escrowed Encryption Standard (known informally as the Clipper chip proposal), a federal cryptography standard for telephony promulgated in 1994 that raised nationwide controversy over its "Big Brother" implications. The committee examines the strategy of export control over cryptography: although this tool has been used for years in support of national security, it is increasingly criticized by the vendors who are subject to federal export regulation. The book also examines other less well known but nevertheless critical issues in national cryptography policy such as digital telephony and the interplay between international and national issues. The themes of Cryptography's Role in Securing the Information Society are illustrated throughout with many examplesâ€"some alarming and all instructiveâ€"from the worlds of government and business as well as the international network of hackers. This book will be of critical importance to everyone concerned about electronic security: policymakers, regulators, attorneys, security officials, law enforcement agents, business leaders, information managers, program developers, privacy advocates, and Internet users.
Book Synopsis Multi-Way Communications by : Anas Chaaban
Download or read book Multi-Way Communications written by Anas Chaaban and published by . This book was released on 2015-09-15 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: This monograph provides an overview of the developments in Multi-way Communications since it was initiated by Claude Shannon.
Book Synopsis Physical-Layer Security by : Matthieu Bloch
Download or read book Physical-Layer Security written by Matthieu Bloch and published by Cambridge University Press. This book was released on 2011-09-22 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: This complete guide to physical-layer security presents the theoretical foundations, practical implementation, challenges and benefits of a groundbreaking new model for secure communication. Using a bottom-up approach from the link level all the way to end-to-end architectures, it provides essential practical tools that enable graduate students, industry professionals and researchers to build more secure systems by exploiting the noise inherent to communications channels. The book begins with a self-contained explanation of the information-theoretic limits of secure communications at the physical layer. It then goes on to develop practical coding schemes, building on the theoretical insights and enabling readers to understand the challenges and opportunities related to the design of physical layer security schemes. Finally, applications to multi-user communications and network coding are also included.
Book Synopsis Communications and Cryptography by : Richard E. Blahut
Download or read book Communications and Cryptography written by Richard E. Blahut and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: Information theory is an exceptional field in many ways. Technically, it is one of the rare fields in which mathematical results and insights have led directly to significant engineering payoffs. Professionally, it is a field that has sustained a remarkable degree of community, collegiality and high standards. James L. Massey, whose work in the field is honored here, embodies the highest standards of the profession in his own career. The book covers the latest work on: block coding, convolutional coding, cryptography, and information theory. The 44 contributions represent a cross-section of the world's leading scholars, scientists and researchers in information theory and communication. The book is rounded off with an index and a bibliography of publications by James Massey.
Book Synopsis Complexity of Lattice Problems by : Daniele Micciancio
Download or read book Complexity of Lattice Problems written by Daniele Micciancio and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lattices are geometric objects that can be pictorially described as the set of intersection points of an infinite, regular n-dimensional grid. De spite their apparent simplicity, lattices hide a rich combinatorial struc ture, which has attracted the attention of great mathematicians over the last two centuries. Not surprisingly, lattices have found numerous ap plications in mathematics and computer science, ranging from number theory and Diophantine approximation, to combinatorial optimization and cryptography. The study of lattices, specifically from a computational point of view, was marked by two major breakthroughs: the development of the LLL lattice reduction algorithm by Lenstra, Lenstra and Lovasz in the early 80's, and Ajtai's discovery of a connection between the worst-case and average-case hardness of certain lattice problems in the late 90's. The LLL algorithm, despite the relatively poor quality of the solution it gives in the worst case, allowed to devise polynomial time solutions to many classical problems in computer science. These include, solving integer programs in a fixed number of variables, factoring polynomials over the rationals, breaking knapsack based cryptosystems, and finding solutions to many other Diophantine and cryptanalysis problems.
Book Synopsis Lattice Coding for Signals and Networks by : Ram Zamir
Download or read book Lattice Coding for Signals and Networks written by Ram Zamir and published by Cambridge University Press. This book was released on 2014-08-07 with total page 459 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unifying information theory and digital communication through the language of lattice codes, this book provides a detailed overview for students, researchers and industry practitioners. It covers classical work by leading researchers in the field of lattice codes and complementary work on dithered quantization and infinite constellations, and then introduces the more recent results on 'algebraic binning' for side-information problems, and linear/lattice codes for networks. It shows how high dimensional lattice codes can close the gap to the optimal information theoretic solution, including the characterisation of error exponents. The solutions presented are based on lattice codes, and are therefore close to practical implementations, with many advanced setups and techniques, such as shaping, entropy-coding, side-information and multi-terminal systems. Moreover, some of the network setups shown demonstrate how lattice codes are potentially more efficient than traditional random-coding solutions, for instance when generalising the framework to Gaussian networks.
Book Synopsis The Sciences of the Artificial, reissue of the third edition with a new introduction by John Laird by : Herbert A. Simon
Download or read book The Sciences of the Artificial, reissue of the third edition with a new introduction by John Laird written by Herbert A. Simon and published by MIT Press. This book was released on 2019-08-13 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Herbert Simon's classic work on artificial intelligence in the expanded and updated third edition from 1996, with a new introduction by John E. Laird. Herbert Simon's classic and influential The Sciences of the Artificial declares definitively that there can be a science not only of natural phenomena but also of what is artificial. Exploring the commonalities of artificial systems, including economic systems, the business firm, artificial intelligence, complex engineering projects, and social plans, Simon argues that designed systems are a valid field of study, and he proposes a science of design. For this third edition, originally published in 1996, Simon added new material that takes into account advances in cognitive psychology and the science of design while confirming and extending the book's basic thesis: that a physical symbol system has the necessary and sufficient means for intelligent action. Simon won the Nobel Prize for Economics in 1978 for his research into the decision-making process within economic organizations and the Turing Award (considered by some the computer science equivalent to the Nobel) with Allen Newell in 1975 for contributions to artificial intelligence, the psychology of human cognition, and list processing. The Sciences of the Artificial distills the essence of Simon's thought accessibly and coherently. This reissue of the third edition makes a pioneering work available to a new audience.
Author :International Monetary Fund. Monetary and Capital Markets Department Publisher :International Monetary Fund ISBN 13 :1475577737 Total Pages :118 pages Book Rating :4.4/5 (755 download)
Book Synopsis Germany by : International Monetary Fund. Monetary and Capital Markets Department
Download or read book Germany written by International Monetary Fund. Monetary and Capital Markets Department and published by International Monetary Fund. This book was released on 2016-06-29 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper evaluates the risks and vulnerabilities of the German financial system and reviews both the German regulatory and supervisory framework and implementation of the common European framework insofar as it is relevant for Germany. The country is home to two global systemically important financial institutions, Deutsche Bank AG and Allianz SE. The system is also very heterogeneous, with a range of business models and a large number of smaller banks and insurers. The regulatory landscape has changed profoundly with strengthened solvency and liquidity regulations for banks (the EU Capital Requirements Regulation and Directive IV), and the introduction of macroprudential tools.
Book Synopsis The Presentation of Self in Everyday Life by : Erving Goffman
Download or read book The Presentation of Self in Everyday Life written by Erving Goffman and published by Anchor. This book was released on 2021-09-29 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: A notable contribution to our understanding of ourselves. This book explores the realm of human behavior in social situations and the way that we appear to others. Dr. Goffman uses the metaphor of theatrical performance as a framework. Each person in everyday social intercourse presents himself and his activity to others, attempts to guide and cotnrol the impressions they form of him, and employs certain techniques in order to sustain his performance, just as an actor presents a character to an audience. The discussions of these social techniques offered here are based upon detailed research and observation of social customs in many regions.
Book Synopsis Media Piracy in Emerging Economies by : Joe Karaganis
Download or read book Media Piracy in Emerging Economies written by Joe Karaganis and published by Lulu.com. This book was released on 2011 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt: Media Piracy in Emerging Economies is the first independent, large-scale study of music, film and software piracy in emerging economies, with a focus on Brazil, India, Russia, South Africa, Mexico and Bolivia. Based on three years of work by some thirty five researchers, Media Piracy in Emerging Economies tells two overarching stories: one tracing the explosive growth of piracy as digital technologies became cheap and ubiquitous around the world, and another following the growth of industry lobbies that have reshaped laws and law enforcement around copyright protection. The report argues that these efforts have largely failed, and that the problem of piracy is better conceived as a failure of affordable access to media in legal markets.
Book Synopsis Managing Conflict of Interest in the Public Service OECD Guidelines and Country Experiences by : OECD
Download or read book Managing Conflict of Interest in the Public Service OECD Guidelines and Country Experiences written by OECD and published by OECD Publishing. This book was released on 2004-01-12 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: The OECD Guidelines for Managing Conflict of Interest in the Public Service provide the first international benchmark in this field. This report highlights trends, approaches and models across OECD countries in a comparative overview that also presents examples of innovative and recent solutions.
Book Synopsis Security and International Relations by : Edward A. Kolodziej
Download or read book Security and International Relations written by Edward A. Kolodziej and published by Cambridge University Press. This book was released on 2005-09 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents security studies as a branch of international relations theory, providing a valuable new survey of the subject.
