Datakryptering

This book takes readers through the sensational history of blockchains and their potential to revolutionize database systems of the future. In order to demystify blockchains, the book capitalizes on decades of research and field testing of existing database and distributed systems and applies these familiar concepts to the novel blockchain system. It then utilizes this framework to explore the essential block platform underpinning blockchains, which is often misunderstood as a specific attribute of cryptocurrencies rather than the core of the decentralized system independent of application. The book explores the nature of these decentralized systems, which have no single owner and build robustness through a multitude of stakeholder contributions. In this way, blockchains can build trust into existing systems and thus present attractive solutions for various domains across both academia and industry. Despite this, high-impact and real-world applications of blockchain have yet to be realized outside of cryptocurrencies like Bitcoin. The book establishes how this new data system, if properly applied, can disrupt the sector in much the same way databases did so many years ago. The book explores the fundamental technical limitations that may be preventing blockchain from realizing this potential and how to overcome or mitigate them. Readers who are completely new to blockchains will find this book to be a comprehensive survey of the state of the art in blockchain technology. Readers with some experience of blockchains, for example through developing cryptocurrencies, will likely find the book's database perspective enlightening. Finally, researchers already working with blockchain will learn to identify existing gaps in the design space and explore potential solutions for creating the next generation of blockchain systems.

¿This book constitutes the revised selected papers from the workshops affiliated with the 27th International Conference on Financial Cryptography and Data Security, FC 2023, which took place in Bol, Brä, Croatia, in May 2023. The 7 full papers presented in this book were carefully reviewed and selected from 18 submissions. They stem from the following workshops:CoDecFin 2022: 3rd Workshop on Coordination of Decentralized FinanceDeFi 2022: 2nd Workshop on Decentralized FinanceVoting 2022: 7th Workshop on Advances in Secure Electronic VotingWTSC 2022: 6th Workshop on Trusted Smart Contracts

This book constitutes the proceedings of the 26th International Conference on Information Security, ISC 2023, which took place in Groningen, The Netherlands, in November 2023.The 29 full papers presented in this volume were carefully reviewed and selected from 90 submissions. The contributions were organized in topical sections as follows: privacy; intrusion detection and systems; machine learning; web security; mobile security and trusted execution; post-quantum cryptography; multiparty computation; symmetric cryptography; key management; functional and updatable encryption; and signatures, hashes, and cryptanalysis.

This book introduces readers to the fundamentals of and recent advances in federated learning, focusing on reducing communication costs, improving computational efficiency, and enhancing the security level. Federated learning is a distributed machine learning paradigm which enables model training on a large body of decentralized data. Its goal is to make full use of data across organizations or devices while meeting regulatory, privacy, and security requirements. The book starts with a self-contained introduction to artificial neural networks, deep learning models, supervised learning algorithms, evolutionary algorithms, and evolutionary learning. Concise information is then presented on multi-party secure computation, differential privacy, and homomorphic encryption, followed by a detailed description of federated learning. In turn, the book addresses the latest advances in federate learning research, especially from the perspectives of communication efficiency, evolutionary learning, and privacy preservation.The book is particularly well suited for graduate students, academic researchers, and industrial practitioners in the field of machine learning and artificial intelligence. It can also be used as a self-learning resource for readers with a science or engineering background, or as a reference text for graduate courses.       

From older times the varying security needs resulted in the design of various cryptographic primitives like encryptions, digital signatures, message digest, and digital certificate. The rapid digitization, online commerce, digital currency, cloud computing, Internet of things, and upcoming quantum computer threat moved researchers for finding provably secure cryptographic methods. According to Shor's algorithm given a sufficiently large quantum computer, conventional public-key cryptography techniques (like RSA and Elliptic-Curve Diffie-Hellman) based on the hardness of integer factorization and elliptic curve discrete logarithm problem will be solved in polynomial time. The data encrypted today using conventional method will no longer be forward secured. Thus, the need of hour is to develop and switch to quantum-secure cryptographic primitives to protect present and future communication. The classical cryptosystem majorly involved three types of ciphers for encrypting information. The ciphers are substitution, transposition, and steganography. Tn a substitution cipher, the prevailing letters in the plaintext are substituted with other letters or numbers. The famous and oldest cipher based on substitution technique is Ceaser cipher. The German military during World War TT makes use of substitution techniques in the Enigma machine for encryption. The transposition cipher involves permutation of plaintext letters i.e. the position of letters is shuffled. Stenography is the method of hiding the message in an image, video, or any other media. The substitution and transposition form the basic building block of all the symmetric-key encryption schemes. Further multiple rounds of substitution and transposition provide a strong and hard cryptosystem. As previously stated, cryptography was previously utilized to ensure merely the confidentiality of information transmitted through insecure networks. However, the digital revolution ushered in modern cryptography advancements in the areas of authentication, non- repudiation, and integrity. Digital signatures, digital certificates, hashing, and the message digest are all common primitives. These primitives also allowed modern-day technology such as online banking, credit cards, electronic commerce, and other digital tasks to be secure enough to attract the general public. Identity-based encryption, location-based encryption, quantum-safe cryptography primitives, homomorphic encryption, blockchain, and cryptographic currencies (bitcoin, and ethereum) are some of the modern primitives

This book is the first publication to give a comprehensive, structured treatment to the important topic of situational awareness in cyber defense. It presents the subject in a logical, consistent, continuous discourse, covering key topics such as formation of cyber situational awareness, visualization and human factors, automated learning and inference, use of ontologies and metrics, predicting and assessing impact of cyber attacks, and achieving resilience of cyber and physical mission. Chapters include case studies, recent research results and practical insights described specifically for this book. Situational awareness is exceptionally prominent in the field of cyber defense. It involves science, technology and practice of perception, comprehension and projection of events and entities in cyber space. Chapters discuss the difficulties of achieving cyber situational awareness ¿ along with approaches to overcoming the difficulties - in the relatively young field of cyber defense where key phenomena are so unlike the more conventional physical world. Cyber Defense and Situational Awareness is designed as a reference for practitioners of cyber security and developers of technology solutions for cyber defenders. Advanced-level students and researchers focused on security of computer networks will also find this book a valuable resource.

Research over the last two decades has considerably expanded knowledge of Internet cryptography, revealing the important interplay between standardization, implementation, and research.This practical textbook/guide is intended for academic courses in IT security and as a reference guide for Internet security. It describes important Internet standards in a language close to real-world cryptographic research and covers the essential cryptographic standards used on the Internet, from WLAN encryption to TLS and e-mail security. From academic and non-academic research, the book collects information about attacks on implementations of these standards (because these attacks are the main source of new insights into real-world cryptography). By summarizing all this in one place, this useful volume can highlight cross-influences in standards, as well as similarities in cryptographic constructions.Topics and features:* Covers the essential standards in Internet cryptography* Integrates work exercises and problems in each chapter* Focuses especially on IPsec, secure e-mail and TLS* Summarizes real-world cryptography in three introductory chapters* Includes necessary background from computer networks* Keeps mathematical formalism to a minimum, and treats cryptographic primitives mainly as blackboxes* Provides additional background on web security in two concluding chaptersOffering a uniquely real-world approach to Internet cryptography, this textbook/reference will be highly suitable to students in advanced courses on cryptography/cryptology, as well as eminently useful to professionals looking to expand their background and expertise.Professor Dr. Jorg Schwenk holds the Chair for Network and Data Security at the Ruhr University in Bochum, Germany. He (co-)authored about 150 papers on the book's topics, including for conferences like ACM CCS, Usenix Security, IEEE S&P, and NDSS.

This book presents Industry 4.0 enabler technologies and tools. It also highlights some of the existing empirical applications in the context of manufacturing. The book elucidates innovative thematic concepts of Industry 4.0 and its perspectives. It establishes routes to empirically utilize Industry 4.0 standards for manufacturing companies. The book can be used as a reference for professionals/engineers, researchers, and students.

This book studies the intersection between cryptography and AI, highlighting the significant cross-impact and potential between the two technologies. The authors first study the individual ecosystems of cryptography and AI to show the omnipresence of each technology in the ecosystem of the other one. Next, they show how these technologies have come together in collaborative or adversarial ways. In the next section, the authors highlight the coevolution being formed between cryptography and AI. Throughout the book, the authors use evidence from state-of-the-art research to look ahead at the future of the crypto-AI dichotomy. The authors explain how they anticipate that quantum computing will join the dichotomy in near future, augmenting it to a trichotomy. They verify this through two case studies highlighting another scenario wherein crypto, AI and quantum converge. The authors study current trends in chaotic image encryption as well as information-theoretic cryptography and show how these trends lean towards quantum-inspired artificial intelligence (QiAI). After concluding the discussions, the authors suggest future research for interested researchers.

This book constitutes the proceedings of the 19th IMA International Conference, IMACC 2023, held in London, UK, during December 12¿14, 2023The 14 full papers included in this volume were carefully reviewed and selected from 36 submissions. This volume presents cutting-edge results in a variety of areas, including coding theory, symmetric cryptography, zeroknowledge protocols, digital signature schemes and extensions, post-quantum cryptography and cryptography in practice.

This book constitutes the proceedings of the 28th Nordic Conference, NordSec 2023, held in Oslo, Norway, during November 16¿17, 2023.The 18 full papers included in this volume were carefully reviewed and selected from 55 submissions. This volume focuses on a broad range of topics within IT security and privacy.

This handbook aims to serve as a one-stop, reliable source of reference, with curations of survey and expository contributions on the state-of-the-art in Blockchain technology. It covers a comprehensive range of topics, providing the technical and non-technical reader with fundamentals, applications, and deep details on a variety of topics. The readership is expected to span broadly from technologically-minded business professionals and entrepreneurs, to students, instructors, novices and seasoned researchers, in computer science, engineering, software engineering, finance, and data science. Though Blockchain technology is relatively young, its evolution as a field and a practice is booming in growth and its importance to society had never been more important than it is today. Blockchain solutions enable a decentralization of a digital society where people can contribute, collaborate, and transact without having to second-guess the trust and transparency factors with many geographical, financial, and political barriers removed. It is the distributed ledger technology behind the success of Bitcoin, Ethereum, and many emerging applications.The resource is divided into 5 parts. Part 1 (Foundation) walks the reader through a comprehensive set of essential concepts, protocols, and algorithms that lay the foundation for Blockchain. Part 2 (Scalability) focuses on the most pressing challenges of today's blockchain networks in how to keep pace with real-world expectations. Part 3 (Trust and Security) provides detailed coverage on the issues of trust, reputation, and security in Blockchain.  Part 4 (Decentralized Finance) is devoted to a high-impact application of Blockchain to finance, the sector that has most benefitted from this technology. Part 5 (Application and Policy) includes several cases where Blockchain applies to the real world.

This book constitutes the refereed proceedings of the 11th International Conference on Code-Based Cryptography, CBCrypto 2023, held in Lyon, France, during April 22¿23, 2023. The 8 full papers included in this book were carefully reviewed and selected from 28 submissions. The conference offers a wide range of many important aspects of code-based cryptography such as cryptanalysis of existing schemes, the proposal of new cryptographic systems and protocols as well as improved decoding algorithms.

Plan, design, and build resilient security architectures to secure your organization's hybrid networks, cloud-based workflows, services, and applications Key FeaturesUnderstand the role of the architect in successfully creating complex security structuresLearn methodologies for creating architecture documentation, engaging stakeholders, and implementing designsUnderstand how to refine and improve architecture methodologies to meet business challengesPurchase of the print or Kindle book includes a free PDF eBookBook DescriptionCybersecurity architecture is the discipline of systematically ensuring that an organization is resilient against cybersecurity threats. Cybersecurity architects work in tandem with stakeholders to create a vision for security in the organization and create designs that are implementable, goal-based, and aligned with the organization's governance strategy.Within this book, you'll learn the fundamentals of cybersecurity architecture as a practical discipline. These fundamentals are evergreen approaches that, once mastered, can be applied and adapted to new and emerging technologies like artificial intelligence and machine learning. You'll learn how to address and mitigate risks, design secure solutions in a purposeful and repeatable way, communicate with others about security designs, and bring designs to fruition. This new edition outlines strategies to help you work with execution teams to make your vision a reality, along with ways of keeping designs relevant over time. As you progress, you'll also learn about well-known frameworks for building robust designs and strategies that you can adopt to create your own designs.By the end of this book, you'll have the foundational skills required to build infrastructure, cloud, AI, and application solutions for today and well into the future with robust security components for your organization.What you will learnCreate your own architectures and analyze different modelsUnderstand strategies for creating architectures for environments and applicationsDiscover approaches to documentation using repeatable approaches and toolsDiscover different communication techniques for designs, goals, and requirementsFocus on implementation strategies for designs that help reduce riskApply architectural discipline to your organization using best practicesWho this book is forThis book is for new as well as seasoned cybersecurity architects looking to explore and polish their cybersecurity architecture skills. Additionally, anyone involved in the process of implementing, planning, operating, or maintaining cybersecurity in an organization can benefit from this book. If you are a security practitioner, systems auditor, and (to a lesser extent) software developer invested in keeping your organization secure, this book will act as a reference guide. Table of ContentsWhat is Cybersecurity Architecture?Architecture - The Core of Solution BuildingBuilding an Architecture - Scope and RequirementsBuilding an Architecture - Your ToolboxBuilding an Architecture - Developing Enterprise BlueprintsBuilding an Architecture - Application BlueprintsExecution - Applying Architecture ModelsExecution - Future-ProofingPutting It All Together

Are you curious about the history and evolution of Bitcoin and other cryptocurrencies? Do you want to learn how they work and what they mean for the world of money and technology? Do you want to discover the social, economic, and political implications of cryptocurrencies for individuals, groups, organizations, and nations?If you answered yes to any of these questions, then this book is for you. In this book, you will find an informative and comprehensive overview of the origins, development, and impact of cryptocurrency and blockchain technology. You will learn about:The historical and technological context that led to the creation of Bitcoin by a mysterious person or group called Satoshi Nakamoto in 2008The main features and functions of Bitcoin, such as peer-to-peer transactions, digital signatures, proof-of-work, and miningThe challenges and opportunities that Bitcoin faced in its early years, such as scalability, security, regulation, and adoptionThe key events and milestones that shaped the growth and evolution of Bitcoin, such as the Bitcoin whitepaper, the genesis block, the first transaction, the pizza purchase, the Silk Road, the Mt. Gox hack, the halving events, and the forksThe rise and fall of altcoins, which are alternative cryptocurrencies that are derived from or inspired by BitcoinThe main motivations and goals of creating altcoins, such as innovation, experimentation, competition, and diversificationThe advantages and disadvantages of altcoins, such as speed, efficiency, privacy, functionality, and volatilityThe key events and milestones that shaped the rise and fall of altcoins, such as the launch of Litecoin, Ethereum, Ripple, Monero, Dogecoin, and others; the ICO boom and bust; the crypto winter; and the DeFi crazeThe social implications of cryptocurrencies, such as how they have affected culture, communication, education, commerce, and tradeThe economic implications of cryptocurrencies, such as how they have affected finance, trade, and capitalThe political implications of cryptocurrencies, such as how they have affected governance, law, and securityThe future and outlook of cryptocurrency and blockchain technology, such as what are the opportunities and challenges they face and what are the insights and predictions for their development and adoptionThis book is intended for anyone who wants to learn more or get involved in cryptocurrency. Whether you are a beginner or an expert, a user or a developer, a enthusiast or a skeptic, this book will help you understand and appreciate the phenomenon that is reshaping and transforming the world of money and technology.

Welcome to "Bitcoin: Mastering the World of Cryptocurrency - Your Ultimate Handbook on Bitcoin". This e-book is your in-depth guide to the intriguing world of Bitcoin and the larger cryptocurrency landscape. This guide is created to meet your needs, whether you're a curious beginner trying to grasp what all the fuss is about, a casual trader looking to expand your knowledge, or an experienced investor looking to stay on the cutting edge of the crypto world.The financial industry is evolving from what we once knew. There are now other ways to carry out transactions, make investments, and store value besides using traditional fiat currencies. A new type of decentralized digital currency built on the blockchain technology was made possible by the 2009 invention of Bitcoin. In addition to being well-known today, Bitcoin also sparked a technological revolution and gave rise to dozens of alternative cryptocurrencies.

This book presents applications of blockchain technologies to foster sustainable development in the textile and clothing supply chain. The concept of Textiles and Fashion Sustainability has grown to a wider extent today. Among the list of items to achieve Sustainability in Textiles and Fashion, the key element is the traceability of supply chains in terms of mapping and tracing the entire supply chain to ensure sustainable supply chain management. Reliable and transparent, efficient data is one of the crucial requirements for Textiles and Fashion Sustainability in today's advanced industrial context and this is possible in this advanced era by various technological advancements such as Block chain technologies. These days one can see a widespread application of blockchain technology in the Textiles and Clothing sector.  The core competencies of blockchain technology namely transparency, data auditability, privacy, value transfer, and process efficiency and automation are very much essential for achieving the multifold objectives under the theme Textiles and Fashion Sustainability.

This book constitutes the proceedings of the 5th Conference on Creativity in Intellectual Technologies and Data Science, CIT&DS 2023, held in Volgograd, Russia, in September 2023.The 40 regular papers and 2 keynote papers presented were carefully reviewed and selected from 148 submissions. The papers are organized in the following topical sections: Artificial intelligence and deep learning technologies for creative tasks. Knowledge discovery in patent and open sources; Artificial intelligence & Deep Learning Technologies for Creative tasks. Open science semantic technologies; Artificial intelligence and deep learning technologies for creative tasks. Computer vision and knowledge-based control; Cyber-physical systems and big data-driven control: pro-active modeling in intelligent decision making support; Cyber-Physical Systems & Big Data-driven world. Industrial creativity in CASE/CAI/CAD/PDM; Cyber-Physical Systems & Big Data-driven world. Intelligent Internet of Services and Internet of Things; Intelligent Technologies in Social Engineering. Data Science in Social Networks Analysis and Cyber Security; Intelligent Technologies in Social Engineering. Creativity & Game-Based Learning; Intelligent Technologies in Social Engineering. Intelligent Technologies in Medicine& Healthcare; Intelligent Technologies in Social Engineering. Intelligent technologies in Urban Design&Computing.

This volume LNCS 14217 constitutes the refereed proceedings of the 17th International Conference on Provable and Practical Security, ProvSec 2023, held in Wuhan, China, during October 2023. The 20 full papers presented together with 3 short papers were carefully reviewed and selected from 71 submissions. The conference focuses on Fundamentals & Cryptographic Primitives; Cryptanalysis; Signature; Encryption; Privacy Preservation; and Blockchain Security.

This edited collection of essays brings together scholars across disciplines who consider the collaborative work of John Matthews Manly and Edith Rickert, philologists, medievalists and early modernists, cryptologists, and education reformers. These pioneers crafted interdisciplinary partnerships as they modeled and advocated for cooperative alliances at every level of their work and in all their academic relationships. Their extensive network of intellectual partnerships made possible groundbreaking projects, from the eight-volume Text of the Canterbury Tales (1940) to the deciphering of the Waberski Cipher, yet, except for their Chaucer work, their many other accomplishments have received little attention. Collaborative Humanities Research and Pedagogy not only surveys the rich range of their work but also emphasizes the transformative intellectual and pedagogical benefits of collaboration.

This book focuses on multi-party computation (MPC) protocols in the passive corruption model (also known as the semi-honest or honest-but-curious model). The authors present seminal possibility and feasibility results in this model and includes formal security proofs. Even though the passive corruption model may seem very weak, achieving security against such a benign form of adversary turns out to be non-trivial and demands sophisticated and highly advanced techniques. MPC is a fundamental concept, both in cryptography as well as distributed computing. On a very high level, an MPC protocol allows a set of mutually-distrusting parties with their private inputs to jointly and securely perform any computation on their inputs. Examples of such computation include, but not limited to, privacy-preserving data mining; secure e-auction; private set-intersection; and privacy-preserving machine learning. MPC protocols emulate the role of an imaginary, centralized trusted third party (TTP) that collects the inputs of the parties, performs the desired computation, and publishes the result. Due to its powerful abstraction, the MPC problem has been widely studied over the last four decades.

Explore the role ChatGPT can play in business, including operations, marketing, sales, and delivery. This concise book illustrates how ChatGPT is changing the way individuals interact with machines and how you can take advantage of its capabilities for business.The book starts with an overview of ChatGPT and its impact in the realm of of conversational AI. You will then dive into the technical aspects of ChatGPT and gain an understanding of how machine learning algorithms and natural language processing work in the background. Various business applications of ChatGPT are then discussed, followed by how it can get integrated into your business operations. To wrap things up, you will gain insight into the data and privacy elements that need to be considered while using ChatGPT, and how to maintain its integrity.After completing this book, you will understand the ChatGPT framework and how to integrate it into your own ventures. What You Will LearnUnderstand the various technologies and techniques utilized in ChatGPTGain insight into the future of human-machine interactionAnalyze the advantages and disadvantages of ChatGPT for your industryExplore the ethical implications of using AI Who This Book Is ForTech enthusiasts who are passionate about artificial intelligence (AI), machine learning, and human-machine interaction.

This book constitutes the refereed proceedings of the 22nd International Conference on Cryptology and Network Security, CANS 2023, which was held in October/November 2023 in Augusta, GA, USA.The 25 papers presented were thoroughly revised and selected from the 54 submissions. They are organized in the following topical sections: Schemes I; Basic Primitives; Security; MPC with Cards; Blockchain; MPC and Secret Sharing; Schemes II.

This book discusses Metaverse Technology, which is one of the emerging technologies around the world, through its concepts, definitions, architectural layers, economic implications, and presents comparison points with other allied areas like Web 3.0, Digital Twin, Blockchain, Multiverse, Artificial Intelligence, Internet of Everything and Hyperautomation.The book also presents several use-cases and adoption areas of Metaverse technology, along with global outlook of top companies implementing this technology through major platforms and tools. The potential use of this technology for Public Sector is also explored in this book, apart from the suggested business framework for its adoption. Potential misuse and ethical concerns have also been summarised. This introductory book on Metaverse, written with a multidisciplinary approach, will provide readers with a clear understanding of what the Metaverse is, what technologies are involved in its creation, and its current aswell as potential future applications, in a very simple manner.

This volume LNCS 14252 constitutes the refereed proceedings of 25th International Conference on Information and Communications Security, ICICS 2023, held in Tianjin, China, during November 18¿20, 2023. The 38 full papers presented together with 6 short papers were carefully reviewed and selected from 181 submissions. The conference focuses on: Symmetric-Key Cryptography; Public-Key Cryptography; Applied Cryptography; Authentication and Authorization; Privacy and Anonymity; Security and Privacy of AI; Blockchain and Cryptocurrencies; and System and Network Security.