User Authentication Principles, Theory and Practice PDF Download

Author: Yaacov Apelbaum
Publisher: Fuji Technology Press
ISBN: 0980000009
Category : Computers
Languages : en
Pages : 166

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Author: Martine Diepenbroek
Publisher: Bloomsbury Publishing
ISBN: 135028128X
Category : Literary Criticism
Languages : en
Pages : 265

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Book Description
This book offers a comprehensive review and reassessment of the classical sources describing the cryptographic Spartan device known as the scytale. Challenging the view promoted by modern historians of cryptography which look at the scytale as a simple and impractical 'stick', Diepenbroek argues for the scytale's deserved status as a vehicle for secret communication in the ancient world. By way of comparison, Diepenbroek demonstrates that the cryptographic principles employed in the Spartan scytale show an encryption and coding system that is no less complex than some 20th-century transposition ciphers. The result is that, contrary to the accepted point of view, scytale encryption is as complex and secure as other known ancient ciphers. Drawing on salient comparisons with a selection of modern transposition ciphers (and their historical predecessors), the reader is provided with a detailed overview and analysis of the surviving classical sources that similarly reveal the potential of the scytale as an actual cryptographic and steganographic tool in ancient Sparta in order to illustrate the relative sophistication of the Spartan scytale as a practical device for secret communication. This helps to establish the conceptual basis that the scytale would, in theory, have offered its ancient users a secure method for secret communication over long distances.

Author: William Stallings
Publisher: Pearson
ISBN: 0134484525
Category : Computers
Languages : en
Pages : 772

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Book Description
This is the eBook of the printed book and may not include any media, website access codes, or print supplements that may come packaged with the bound book. The Principles and Practice of Cryptography and Network Security Stallings’ Cryptography and Network Security, Seventh Edition, introduces the reader to the compelling and evolving field of cryptography and network security. In an age of viruses and hackers, electronic eavesdropping, and electronic fraud on a global scale, security is paramount. The purpose of this book is to provide a practical survey of both the principles and practice of cryptography and network security. In the first part of the book, the basic issues to be addressed by a network security capability are explored by providing a tutorial and survey of cryptography and network security technology. The latter part of the book deals with the practice of network security: practical applications that have been implemented and are in use to provide network security. The Seventh Edition streamlines subject matter with new and updated material — including Sage, one of the most important features of the book. Sage is an open-source, multiplatform, freeware package that implements a very powerful, flexible, and easily learned mathematics and computer algebra system. It provides hands-on experience with cryptographic algorithms and supporting homework assignments. With Sage, the reader learns a powerful tool that can be used for virtually any mathematical application. The book also provides an unparalleled degree of support for the reader to ensure a successful learning experience.

Author: Mark Stamp
Publisher: John Wiley & Sons
ISBN: 0471744182
Category : Computers
Languages : en
Pages : 371

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Book Description
Your expert guide to information security As businesses and consumers become more dependent on complexmultinational information systems, the need to understand anddevise sound information security systems has never been greater.This title takes a practical approach to information security byfocusing on real-world examples. While not sidestepping the theory,the emphasis is on developing the skills and knowledge thatsecurity and information technology students and professionals needto face their challenges. The book is organized around four majorthemes: * Cryptography: classic cryptosystems, symmetric key cryptography,public key cryptography, hash functions, random numbers,information hiding, and cryptanalysis * Access control: authentication and authorization, password-basedsecurity, ACLs and capabilities, multilevel and multilateralsecurity, covert channels and inference control, BLP and Biba'smodels, firewalls, and intrusion detection systems * Protocols: simple authentication protocols, session keys, perfectforward secrecy, timestamps, SSL, IPSec, Kerberos, and GSM * Software: flaws and malware, buffer overflows, viruses and worms,software reverse engineering, digital rights management, securesoftware development, and operating systems security Additional features include numerous figures and tables toillustrate and clarify complex topics, as well as problems-rangingfrom basic to challenging-to help readers apply their newlydeveloped skills. A solutions manual and a set of classroom-testedPowerPoint(r) slides will assist instructors in their coursedevelopment. Students and professors in information technology,computer science, and engineering, and professionals working in thefield will find this reference most useful to solve theirinformation security issues. An Instructor's Manual presenting detailed solutions to all theproblems in the book is available from the Wiley editorialdepartment. An Instructor Support FTP site is also available.

Author: Gary Barkhuizen
Publisher: Taylor & Francis
ISBN: 131728609X
Category : Language Arts & Disciplines
Languages : en
Pages : 287

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Book Description
Reflections on Language Teacher Identity Research is the first book to present understandings of language teacher identity (LTI) from a broad range of research fields. Drawing on their personal research experience, 41 contributors locate LTI within their area of expertise by considering their conceptual understanding of LTI and the methodological approaches used to investigate it. The chapters are narrative in nature and take the form of guided reflections within a common chapter structure, with authors embedding their discussions within biographical accounts of their professional lives and research work. Authors weave discussions of LTI into their own research biographies, employing a personal reflective style. This book also looks to future directions in LTI research, with suggestions for research topics and methodological approaches. This is an ideal resource for students and researchers interested in language teacher identity as well as language teaching and research more generally.

Author: Paul A. Schutz
Publisher: Springer
ISBN: 3319938363
Category : Education
Languages : en
Pages : 250

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Book Description
Understanding teachers’ professional identities and their development is key to unpacking teachers’ professional lives, the quality of their instruction, their motivation and commitment to teach, and their career decision-making. This book features a number of scholars from around the world who represent a variety of disciplines, scientific paradigms, and inquiry methods in researching teacher identity. By bringing these chapters together, this volume initiates active scholarly conversations and extends the boundaries of teacher identity research and practice. This collection of chapters provides significant insight into teacher identity and will be essential reading for pre-service and in-service teachers, teacher educators, school administrators, professional developers, and policy makers at various levels.

Author: Roz Ivani?
Publisher: John Benjamins Publishing
ISBN: 9027217971
Category : Language Arts & Disciplines
Languages : en
Pages : 389

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Book Description
Writing is not just about conveying 'content' but also about the representation of self. (One of the reasons people find writing difficult is that they do not feel comfortable with the 'me' they are portraying in their writing. Academic writing in particular often poses a conflict of identity for students in higher education, because the 'self' which is inscribed in academic discourse feels alien to them.)The main claim of this book is that writing is an act of identity in which people align themselves with socio-culturally shaped subject positions, and thereby play their part in reproducing or challenging dominant practices and discourses, and the values, beliefs and interests which they embody. The first part of the book reviews recent understandings of social identity, of the discoursal construction of identity, of literacy and identity, and of issues of identity in research on academic writing. The main part of the book is based on a collaborative research project about writing and identity with mature-age students, providing: - a case study of one writer's dilemmas over the presentation of self;- a discussion of the way in which writers' life histories shape their presentation of self in writing;- an interview-based study of issues of ownership, and of accommodation and resistance to conventions for the presentation of self;- linguistic analysis of the ways in which multiple, often contradictory, interests, values, beliefs and practices are inscribed in discourse conventions, which set up a range of possibilities for self-hood for writers.The book ends with implications of the study for research on writing and identity, and for the learning and teaching of academic writing.The book will be of interest to students and researchers in the fields of social identity, literacy, discourse analysis, rhetoric and composition studies, and to all those concerned to understand what is involved in academic writing in order to provide wider access to higher education.

Author: Thomas S. C. Farrell
Publisher: Routledge
ISBN: 100051305X
Category : Education
Languages : en
Pages : 189

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Book Description
This practical and engaging book introduces readers to reflective practice in English language teaching. Assuming no background knowledge, Thomas S. C. Farrell clearly and accessibly walks through ways that teachers can integrate and implement reflective practice in the classroom and in other contexts to benefit their teaching and their own professional development. Each chapter covers an important dimension of reflective practice and features many ready-to-use activities that are designed to empower teachers and allow them to overcome challenges they’ll face throughout their careers. Covering many types of reflection and the many purposes it serves, this book addresses written reflection, lesson planning, classroom observation, classroom management, group communication and more. This resource is ideal for preservice and early career language teachers and is an important supplement to courses in language education and applied linguistics programs.

Author: William Stallings
Publisher: Prentice Hall
ISBN: 0131873164
Category : Coding theory
Languages : en
Pages : 701

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Book Description
In this age of viruses and hackers, of electronic eavesdropping and electronic fraud, security is paramount. This solid, up-to-date tutorial is a comprehensive treatment of cryptography and network security is ideal for self-study.Explores the basic issues to be addressed by a network security capability through a tutorial and survey of cryptography and network security technology. Examines the practice of network security via practical applications that have been implemented and are in use today. Provides a simplified AES (Advanced Encryption Standard) that enables readers to grasp the essentials of AES more easily. Features block cipher modes of operation, including the CMAC mode for authentication and the CCM mode for authenticated encryption. Includes an expanded, updated treatment of intruders and malicious software.A useful reference for system engineers, programmers, system managers, network managers, product marketing personnel, and system support specialists.

Author: Terry Smith
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110718731
Category : Business & Economics
Languages : en
Pages : 743

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Book Description
Brand Fusion: Purpose-driven brand strategy presents a compelling case for what consumers, customers, employees, and wider society are now demanding from companies – the development of brands that deliver profit with purpose, are sustainable, and create mutually beneficial meaning. It fuses theory-practice-application to purpose-driven brand strategies in order to develop a unique approach that has comprehensive theoretical underpinning as well as practical and thought-provoking lessons from industry. Data-driven case studies from a broad range of brands and contexts show the application of this learning–from micro-brands to corporates; charities to technology companies; retirement villages to aspiring high-growth start-ups. Brand Fusion: Purpose-driven brand strategy is an in-depth analysis of the philosophy and practice behind creating a purposeful brand.