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Subnetting
by Todd LammleMaster the fundamental concept at the heart of professional networking Subnetting is the aspiring network professional's guide to the concepts and practices at the core of the field. By dividing a single physical network into smaller subnetworks, you gain greater control of performance, access, and security. While the concept is simple, the actual practice is complex--yet it is an essential skill for networking professionals, and a major skill tested on the CCENT and CompTIA Network+ exams. This book shows you everything you need to know about constructing IP addresses, VSLM, and route summarization to help you build your skill set on a strong foundation. The IPv4 address has 32 bits available, which can be divided into host ID and network ID; the number of bits assigned to the network ID determines the balance between total subnetworks and devices allowed--the trick is determining the most efficient balance for a particular network. Subnetting allows you to borrow bits from the host to allow for more networks, and subnet masks are used to determine switching and routing priority. This book delves into the mechanisms and practices you need to know, including networking fundamentals, rules of IP addresses, supernetting, variable length subnet mask, IPv6, and more: Master the fundamental topic at the heart of the Cisco Certified Entry Networking Technician and CompTIA Network+ certifications Improve network performance using subnetworks to avoid high-usage "clogs" Utilize network partitioning to confine breaches or viruses and improve security Construct efficient solutions to problems of allocation and range With clear guidance from an industry expert and a practical perspective geared toward real-world situations, Subnetting offers an outstanding introduction to this essential foundational concept.
Suchmaschinen-Optimierung für Dummies (Für Dummies)
by Julian DzikiSie haben ein Unternehmen gegründet und Ihre Website geht demnächst online? Sie sind gerüstet für zahlreiche Besucher und hoffen auf hohe Umsätze? Dann ist es Zeit für das Feintuning. Dieses Buch zeigt Ihnen, wie Ihre Website von Google besser gefunden wird und wie Sie bei Google ganz nach oben kommen. Finden Sie die richtigen Suchbegriffe und stimmen Sie Ihre Inhalte darauf ab, optimieren Sie Ihre Snippets und unterstützen Sie den Google-Crawler beim Erfassen der Seiten. Zahlreiche Beispiele und Anekdoten aus der Praxis sorgen nicht nur für ein gutes Ranking, sondern auch für Spaß beim Lesen.
Suchmaschinen-Optimierung für Dummies (Für Dummies)
by Julian DzikiSie haben ein Unternehmen gegründet und Ihre Website geht demnächst online? Sie sind gerüstet für zahlreiche Besucher und hoffen auf hohe Umsätze? Dann ist es Zeit für das Feintuning. Dieses Buch zeigt Ihnen, wie Ihre Website von Google besser gefunden wird und wie Sie bei Google ganz nach oben kommen. Finden Sie die richtigen Suchbegriffe und stimmen Sie Ihre Inhalte darauf ab, optimieren Sie Ihre Snippets und unterstützen Sie den Google-Crawler beim Erfassen der Seiten. Zahlreiche Beispiele und Anekdoten aus der SEO-Praxis sorgen für ein gutes Ranking und für Spaß beim Lesen.
SugarCRM For Dummies
by Karen S. FredricksSugarCRM is an innovative customer relationship management software solution that enhances your company's marketing effectiveness, drives sales performance, improves customer satisfaction, and provides executive insight into business performance. SugarCRM For Dummies will show you to take advantage of this free, open source CRM application to boost your sales and please your customers.This guide helps you choose the flavor of Sugar you need, acquire and deploy it, set up accounts and contacts, and organize your day. You'll first learn how to install SugarCRM, customize user preferences, create databases, and import contacts from other software. Next, you'll discover how to extend SugarCRM's capabilities to meet needs unique to your business. You'll also find out how to:Schedule appointments, link them to records and notes, and organize your sales opportunitiesBuild campaigns, track their success, and grow your contact list with Web-to-lead formsManage customer issues and forums to exterminate software bugsSend e-newsletters and automate customer e-mail communication with templatesTake advantage of a complete recipe book for SugarCRM administratorsImprove sales performance with SugarCRMProvide great service to your customersDevelop searchable libraries and FAQsCreate and share documentsSugarCRM For Dummies will get you quickly up to speed on this customer relationship management software so you can enhance your business.Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.
Supply Chain Management and its Applications in Computer Science
by Saoussen Krichen Sihem Ben JouidaSupply chain management is a key topic for a large variety of strategic decision problems. It is essential in making efficient decisions related to the management of inventory and the delivery of final products to customers. The focus of this book is the understanding of the supply chain taxonomy, the different levels of decision and the impact of one level on another depending on the modeling of the addressed objectives. The authors explore the potential problems that can be addressed within the supply chain, such as the inventory, the transportation and issues of holding, and find applications in numerous fields of study, from cloud computing and networking through to industrial sciences. The reader can find each issue described and its positioning in the supply chain determined. A computer science framework is also developed to show how the use of electronic platforms can aid in the handling of these potential problems.
Supporting Online Students
by Anita CrawleySupporting Online Students shows how effective and efficiently delivered support services improve academic success and course retention for online learners. Drawing on a decade's worth of research, Crawley describes the scope of services that should be made available to online students, from admissions and registration to advising and student engagement. The book includes guidelines and standards for these services as outlined by half a dozen national professional organizations, as well as planning and implementation, innovative practices, and specialized services needed by particular online student groups.
Surface For Dummies
by Andy RathboneMake Microsoft's Surface work--and play--just the way you want it toMicrosoft's Surface tablet has the features and personality you're looking for, with a robust environment for business computing that doesn't skimp on fun. Surface for Dummies, 2nd Edition explains how Windows 8.1 Pro and Windows RT differ, and helps you decide which Surface model is best for you. Step by step, this book walks you through both the hardware and software features of the Surface, including the touch cover and type cover, Windows RT and Windows 8.1 Pro operating systems, and the coveted Office Home & Student 2013 software suite that's bundled with the Surface. Written by bestselling author Andy Rathbone, this easy-to-access book is filled with information on how to use the tablet, figure out the operating system, navigate the app environment, and take advantage of your exciting new Surface.The book is your personal guide to one the fastest, sleekest, and most powerful tablets on the market. Surface is designed to be thin, light, and with hours of battery life so you can power through your day with ease. With this handy reference, you'll be able to make quick work of your to-do list and have fun all at the same time!Create: release your inner artist with Fresh Paint, a touch-based art appShare: Multiple accounts offer privacy and security so you can share your Surface, but not your stuffEnjoy: Snap apps side by side to multi-task on the vivid HD screenDiscover: New apps in the Windows Store so you can work efficiently and get more doneWith Surface For Dummies, 2nd Edition you can navigate and enhance your entire Surface experience!
Sustainable IT Architecture: The Progressive Way of Overhauling Information Systems with SOA (Wiley-iste Ser.)
by Pierre Bonnet Jean-Michel Detavernier Dominique VauquierThis book focuses on Service Oriented Architecture (SOA), the basis of sustainable and more agile IT systems that are able to adapt themselves to new trends and manage processes involving a third party. The discussion is based on the public Praxeme method and features a number of examples taken from large SOA projects which were used to rewrite the information systems of an insurance company; as such, decision-makers, creators of IT systems, programmers and computer scientists, as well as those who will use these new developments, will find this a useful resource.
Swarm Intelligence: An Approach from Natural to Artificial (Concise Introductions to AI and Data Science)
by Kuldeep Singh Kaswan Jagjit Singh Dhatterwal Avadhesh KumarSWARM INTELLIGENCE This important authored book presents valuable new insights by exploring the boundaries shared by cognitive science, social psychology, artificial life, artificial intelligence, and evolutionary computation by applying these insights to solving complex engineering problems. Motivated by the capability of the biologically inspired algorithms, “Swarm Intelligence: An Approach from Natural to Artificial” focuses on ant, cat, crow, elephant, grasshopper, water wave and whale optimization, swarm cyborg and particle swarm optimization, and presents recent developments and applications concerning optimization with swarm intelligence techniques. The goal of the book is to offer a wide spectrum of sample works developed in leading research throughout the world about innovative methodologies of swarm intelligence and foundations of engineering swarm intelligent systems; as well as applications and interesting experiences using particle swarm optimization, which is at the heart of computational intelligence. Discussed in the book are applications of various swarm intelligence models to operational planning of energy plants, modeling, and control of robots, organic computing, techniques of cloud services, bioinspired optimization, routing protocols for next-generation networks inspired by collective behaviors of insect societies and cybernetic organisms. Audience The book is directed to researchers, practicing engineers, and students in computational intelligence who are interested in enhancing their knowledge of techniques and swarm intelligence.
Swarm Intelligence Optimization: Algorithms and Applications
by Abhishek Kumar Rashmi Agrawal Pramod Singh Rathore Vicente Garrcia DiazResource optimization has always been a thrust area of research, and as the Internet of Things (IoT) is the most talked about topic of the current era of technology, it has become the need of the hour. Therefore, the idea behind this book was to simplify the journey of those who aspire to understand resource optimization in the IoT. To this end, included in this book are various real-time/offline applications and algorithms/case studies in the fields of engineering, computer science, information security, and cloud computing, along with the modern tools and various technologies used in systems, leaving the reader with a high level of understanding of various techniques and algorithms used in resource optimization.
Swift 2.0: Der Sprachkurs für Einsteiger und Individualisten
by Wolfram SchroersSie möchten Apples neue Programmiersprache Swift erlernen, um Apps fürs iPhone oder iPad oder Programme für den Mac zu entwickeln? Dann finden Sie in diesem Buch alles, was Sie wissen müssen! Von den Entwicklungswerkzeugen und Ihrer ersten App über Schleifen und Verzweigungen bis zur objektorientierten Programmierung erklärt Ihnen Wolfram Schroers Schritt für Schritt alle benötigten Grundlagen. Natürlich erfahren Sie auch, wie Sie die Benutzeroberflächen Ihrer Anwendungen mit dem Cocoa-Framework gestalten und sie aufs iPhone, iPad oder den Mac portieren. Der besondere Clou sind dabei die Beispiele: Statt sich mit trockenen Programmieraufgaben zu langweilen, entwickeln Sie kleine Spiele oder einen Passwortgenerator. Alle Codebeispiele erhalten Sie zur besseren Orientierung natürlich auch zum Download auf der Verlagswebsite. Das Buch eignet sich sowohl für Programmieranfänger als auch für Umsteiger; falls Sie vorher schon in Objective-C programmiert haben sollten, werden Ihnen gezielte Hinweise über mögliche Fallstricke hinweghelfen. Starten Sie also durch mit Swift und schreiben Sie Ihre eigenen Apps und Mac-Programme!
Swift For Dummies
by Jesse FeilerGet up and running with Swift--swiftly Brimming with expert advice and easy-to-follow instructions, Swift For Dummies shows new and existing programmers how to quickly port existing Objective-C applications into Swift and get into the swing of the new language like a pro. Designed from the ground up to be a simpler programming language, it's never been easier to get started creating apps for the iPhone or iPad, or applications for Mac OS X. Inside the book, you'll find out how to set up Xcode for a new Swift application, use operators, objects, and data types, and control program flow with conditional statements. You'll also get the scoop on creating new functions, statements, and declarations, learn useful patterns in an object-oriented environment, and take advantage of frameworks to speed your coding along. Plus, you'll find out how Swift does away with pointer variables and how to reference and dereference variables instead. Set up a playground development environment for Mac, iPhone, iPad, and wearable computers Move an existing Objective-C program to Swift Take advantage of framework components and subcomponents Create an app that uses location, mapping, and social media Whether you're an existing Objective-C programmer looking to port your code to Swift or you've never programmed for Apple in the past, this fun and friendly guide gets you up to speed swiftly.
Swift in the Cloud
by John Ponzo Karl Weinmeister Leigh Williamson Patrick Bohrer Ricardo Olivieri Samuel KallnerWrite and run Swift language programs in the Cloud Written by the team of developers that has helped bring the Swift language to Cloud computing, this is the definitive guide to writing and running Swift language programs for cloud environment. In Swift in the Cloud, you'll find full coverage of all aspects of creating and running Swift language applications in Cloud computing environments, complete with examples of real code that you can start running and experimenting with today. Since Apple introduced the Swift language in 2014, it has become one of the most rapidly adopted computer programming languages in history—and now you too can start benefitting from using the same programming language for all components of a scalable, robust business software solution. Create server applications using Swift and run them on pay-as-you-go cloud infrastructure Quickly write and test Swift code snippets in your own cloud sandbox Use Docker containers to deploy Swift applications into multiple cloud environments without having to change code Grasp the elements and structure of the Swift.org open technology project Find out how to avoid the complexities of runtime configuration by using Cloud Foundry buildpacks for Swift Build high performing web applications and REST APIs with an open source Swift based web server framework Scale up your cloud services by running Swift modules in an asynchronous, open source, 'serverless' cloud environment Whether you are already using Swift to build mobile applications or a seasoned web developer, Swift in the Cloud will help you leverage server-side Swift to power your next generation of applications.
Swift iOS 24-Hour Trainer
by Abhishek MishraJump into the app development world with confidence! iOS Swift 24-Hour Trainer combines book and video lessons in Apple's Swift programming language to prepare you to build iPhone and iPad apps--and distribute them through the Appstore. First, this approachable text covers the fundamentals of Swift by introducing you to iOS development in this language, and presenting best practices for setting up a development environment and using variables, statements, expressions, operators, functions, and closures. Next, you explore common tasks, such as alert views, table views, and collection views. You then deepen your knowledge of Swift by considering network programming and local data storage. Finally, this engaging resource dives into slightly more advanced concepts, such as tab bars, web views, the accelerometer, camera, photo library, Google maps, and core location. Swift was designed by Apple to incorporate modern scripting features while offering simpler, cleaner syntax than Objective-C to maintain a minimal and easy to read style. This more expressive code offers numerous key features, such as closures unified with function pointers, tuples and multiple value returns, generics, and functional programming patterns. Learn how to obtain a device UDID Test your applications on an actual device, so you can see your work in action Distribute your applications outside of the App store, allowing you to test your work with real users Review common reasons why apps are rejected by Apple to strengthen your case when submitting your apps for distribution iOS Swift 24-Hour Trainer is an essential guide to Apple's Swift programming language for beginning programmers.
SwiftUI For Dummies
by Wei-Meng LeeThe simplest way to create world-class apps Have a unique app idea but worried you don’t quite have the coding skills to build it? Good news: You can stop fretting about someone beating you to market with the same idea and start work right now using SwiftUI. SwiftUI is a gateway app development framework that has become one of the best ways for fledgling developers to get iOS apps off the ground without having to become a coding expert overnight. SwiftUI For Dummies makes that process even faster, providing a friendly introduction to the SwiftUI and Swift programming language and helping you feel right at home creating and building with playgrounds. The book also covers the frameworks and APIs that make it so easy to create smooth, intuitive interfaces—just dive right in and have fun! Combine projects into workspaces Employ Xcode editing tools Use constants and variables Test your code on iOS Simulator Time is of the essence, and with SwiftUI For Dummies, it’s also on your side. Get going with this friendly guide today, and you’ll be celebrating the successful launch of your app way before you thought possible!
Swipe This!
by Scott RogersLearn to design games for tablets from a renowned game designer!Eager to start designing games for tablets but not sure where to start? Look no further! Gaming guru Scott Rogers has his finger on the pulse of tablet game design and is willing to impart his wisdom and secrets for designing exciting and successful games. As the creator of such venerable games as God of War, the SpongeBob Squarepants series, and Pac-Man World, to name a few, Rogers writes from personal experience and in this unique book, he hands you the tools to create your own tablet games for the iPad, Android tablets, Nintendo DS, and other touchscreen systems.Covers the entire tablet game creation process, placing a special focus on the intricacies and pitfalls of touch-screen game designExplores the details and features of tablet game systems and shows you how to develop marketable ideas as well as market your own gamesOffers an honest take on what perils and pitfalls await you during a game's pre-production, production, and post-production stagesFeatures interviews with established tablet game developers that serve to inspire you as you start to make your own tablet game designSwipe This! presents you with an in-depth analysis of popular tablet games and delivers a road map for getting started with tablet game design.
Switching to a Mac For Dummies
by Arnold ReinholdThinking of making the switch from your PC to a Mac? Congratulations! You’re in for a great, virus-free ride. And Switching to Mac For Dummies makes it smoother than you ever imagined. From buying the Mac that’s right for you to transferring your files to breaking your old Windows habits and learning to do things the (much easier) Mac way, it makes the whole process practically effortless. Whether you’ve been using Windows XP, Vista, or even Linux, you’ll find simple, straightforward ways to make your transition go smoothly. That will leave you plenty of time to get familiar with Mac’s prodigious and dynamic OS X capabilities. You’ll also connect with iLife, Mac’s amazing integrated software suite that lets you turn your computer into a powerful media center—not just for listening and watching, but for creating music, video, and much more. Discover how to: Decide whether the switch to Mac is right for you Choose the Mac that will change your life Keep and reuse elements of your old setup Go online with your Mac Connect to your home network—even that old PC Go media crazy with iTunes, iPhoto and more Take advantage of Mac’s business capabilities Complete with handy cheat sheet of common Mac short cuts and commands as well as a glossary of Mac world lingo, Switching to Mac For Dummies ensures that your switch will be the smartest thing you ever do.
Switching to a Mac For Dummies
by Arnold ReinholdThinking of making the switch from your PC to a Mac? Congratulations! You're in for a great, virus-free ride. And Switching to Mac For Dummies makes it smoother than you ever imagined. From buying the Mac that's right for you to transferring your files to breaking your old Windows habits and learning to do things the (much easier) Mac way, it makes the whole process practically effortless.Whether you've been using Windows XP, Vista, or even Linux, you'll find simple, straightforward ways to make your transition go smoothly. That will leave you plenty of time to get familiar with Mac's prodigious and dynamic OS X capabilities. You'll also connect with iLife, Mac's amazing integrated software suite that lets you turn your computer into a powerful media center--not just for listening and watching, but for creating music, video, and much more. Discover how to:Decide whether the switch to Mac is right for youChoose the Mac that will change your lifeKeep and reuse elements of your old setupGo online with your MacConnect to your home network--even that old PCGo media crazy with iTunes, iPhoto and moreTake advantage of Mac's business capabilitiesComplete with handy cheat sheet of common Mac short cuts and commands as well as a glossary of Mac world lingo, Switching to Mac For Dummies ensures that your switch will be the smartest thing you ever do.
Switching to a Mac Pocket Genius (Portable Genius #86)
by Paul McFedriesAn accessible guide to using a Mac or transitioning from Windows to Mac This book helps new-to-Mac users get more comfortable with their computers. Switching to a Mac Pocket Genius guides readers in learning more about their computers, including becoming familiar with the interface, performing routine tasks, and moving data. The author wants to help users get around Mac challenges and avoid or remedy common problems they encounter.
Switching to a Mac Portable Genius
by Paul McfedriesThe Genius is in.You don't have to be a genius to switch from a PC to a Mac. But if you want to make the move with less hassle, put this savvy Portable Genius guide to work. Want to share data between your Mac and your PC? Understand the differences between Mac OS®X and Windows®? Learn how to perform everyday Mac tasks? Transfer important stuff like calendars, contact lists, and music? You'll find cool and useful Genius tips, full-color screenshots, and pages of easy-to-access shortcuts and tools that will save you loads of time and let you enjoy your Mac to the max.Paul McFedries is the president of Logophilia Limited, a technical writing company. He has written more than four dozen books that have sold more than two million copies worldwide. These books include Macs Portable Genius, Teach Yourself VISUALLY Macs, and Teach Yourself VISUALLY Windows Vista. Paul encourages all readers to drop by his Web site, www.mcfedries.com.Portable GENIUS Fun, hip, and straightforward, the new Portable Genius series gives forward-thinking Apple users useful information in handy, compact books that are easy to navigate and don't skimp on the essentials. Collect the whole series and make the most of your Apple digital lifestyle.
Switching to a Mac Portable Genius, 2nd Edition
by Paul McfedriesSwitching from a PC to a Mac is a breeze with this book Anyone considering making the move to Mac from the Windows world will find this book smoothes the way. While Macs are famous for ease of use, there are fundamental differences in Mac and PC ways of thinking, plus there?s the hassle of moving files, calendars, and other essential data from one platform to another. This guide lays out all the information, explains basic Mac procedures for the newcomer, offers great tips on data-sharing (including running Windows applications on a Mac), and provides everything the new Mac user needs to move forward with confidence. Mac sales have recently surpassed the sales of new PCs, and many new Mac users are trying to adjust to a different way of working with the computer and struggling to transfer essential data from an old PC to the Mac Portable Genius books focus on the most accessible, useful information and deliver it in the most direct way: exactly what these users want Covers the basics that new Mac users need to get started, intermediate-level information to help them make the most of the Mac, and plenty of advice on transferring important data, running Windows applications on the Mac via Boot Camp, maintaining a Mac, and more With help from Switching to a Mac Portable Genius, Second Edition, former PC users will find themselves comfortable in the Mac world in no time.
Sybex's Study Guide for Snowflake SnowPro Core Certification: COF-C02 Exam
by Hamid Mahmood QureshiPrepare smarter, faster, and better with the premier study guide for Snowflake SnowPro Core certification Snowflake, a cloud-based data warehousing platform, has steadily gained popularity since its 2014 launch. Snowflake offers several certification exams, of which the SnowPro Core certification is the foundational exam. The SnowPro Core Certification validates an individual's grasp of Snowflake as a cloud data warehouse, its architectural fundamentals, and the ability to design, implement, and maintain secure, scalable Snowflake systems. Sybex’s Study Guide for Snowflake SnowPro Certification delivers comprehensive coverage of every relevant exam topic on the Snowflake SnowPro Core Certification test. Prepare efficiently and effectively for the exam with online practice tests and flashcards, a digital glossary, and concise and easy-to-follow instruction from the subject-matter experts at Sybex. You'll gain the necessary knowledge to help you succeed in the exam and will be able to apply the acquired practical skills to real-world Snowflake solutions. This Study Guide includes: Comprehensive understanding of Snowflake's unique shared data, multi-cluster architecture Guidance on loading structured and semi-structured data into Snowflake Utilizing data sharing, cloning, and time travel features Managing performance through clustering keys, scaling compute up, down & across Steps to account management and security configuration including RBAC & MFA All the info you need to obtain a highly valued credential for a rapidly growing new database software solution Access to the Sybex online learning center, with chapter review questions, full-length practice exams, hundreds of electronic flashcards, and a glossary of key terms Perfect for anyone considering a new career in cloud-based data warehouse solutions and related fields, Sybex’s Study Guide for Snowflake SnowPro Certification is also a must-read for veteran database professionals seeking an understanding of one of the newest and fastest-growing niches in data.
Symbolic Approaches to Modeling and Analysis of Biological Systems
by Cédric Lhoussaine Élisabeth RemySystems Biology is an approach to biology that involves understanding the complexity of interactions among biological entities within a systemic whole. The goal is to understand the emergence of physiological or functional properties. Symbolic Approaches to Modeling and Analysis of Biological Systems presents contributions of formal methods from computer science for modeling the dynamics of biological systems. It deals more specifically with symbolic methods, i.e. methods that can establish the qualitative properties of models. This book presents different approaches related to semantics, language, modeling and their link with data, and allows us to examine the fundamental problems and challenges that biological systems are facing. The first part of the book presents works that rely on various available data to build models, while the second part gathers contributions surrounding issues of semantics and formal methods.
Symmetric Cryptography, Volume 1: Design and Security Proofs
by Christina Boura María Naya-PlasenciaSymmetric cryptology is one of the two main branches of cryptology. Its applications are essential and vital in the Information Age, due to the efficiency of its constructions. The scope of this book in two volumes is two-fold. First, it presents the most important ideas that have been used in the design of symmetric primitives, their inner components and their most relevant constructions. Second, it describes and provides insights on the most popular cryptanalysis and proof techniques for analyzing the security of the above algorithms. A selected number of future directions, such as post-quantum security or design of ciphers for modern needs and particular applications, are also discussed. We believe that the two volumes of this work will be of interest to researchers, to master’s and PhD students studying or working in the field of cryptography, as well as to all professionals working in the field of cybersecurity.
Symmetric Cryptography, Volume 2: Cryptanalysis and Future Directions
by Christina Boura María Naya-PlasenciaSymmetric cryptology is one of the two main branches of cryptology. Its applications are essential and vital in the Information Age, due to the efficiency of its constructions. The scope of this book in two volumes is two-fold. First, it presents the most important ideas that have been used in the design of symmetric primitives, their inner components and their most relevant constructions. Second, it describes and provides insights on the most popular cryptanalysis and proof techniques for analyzing the security of the above algorithms. A selected number of future directions, such as post-quantum security or design of ciphers for modern needs and particular applications, are also discussed. We believe that the two volumes of this work will be of interest to researchers, to master’s and PhD students studying or working in the field of cryptography, as well as to all professionals working in the field of cybersecurity.