Download or read book Cryptographie codes secrets written by and published by . This book was released on 2006 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Des premiers systèmes de cryptographie aux systèmes informatiques actuels, un tour d'horizon complet de cette science du secret (histoire, méthodes et protocoles...)
Download or read book Bulletin de la Soci t royale des sciences de Li ge written by Société royale des sciences de Liège and published by . This book was released on 2002 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cryptographie codes secrets written by Hervé Lehning and published by . This book was released on 2013 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: La 4ème de couv. indique : "L'histoire de la cryptographie est celle d'un combat sans merci entre ceux qui ont quelquechose à cacher et ceux qui aimeraient bien découvrir ce qu'on leur cache. Au temps de César, déjà les généraux permutaient les lettres des messages envoyés à leurs armées. La méthode s'est perfectionnée pour aboutir, sous l'ère industrielle, à des machines à crypter dont la plus célèbre fut Enigma. Outre le domaine militaire, l'usage d'un code comme le Morse a installé l'idée de communiquer à distance... Aujourd'hui la cryptographie est omniprésente. Systèmes informatiques, terminaux de cartes bleues, téléphones mobiles sont équipés de protocoles de sécurité que défient les pirates des temps modernes. Sur le champ de bataille, les armes sont mathématiques et la plus redoutable se nomme la factorisation de grands nombres."
Download or read book Information Technology and the Law written by and published by . This book was released on 1993 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Langues niveaux multiples written by Jacques Lerot and published by Peeters Publishers. This book was released on 2004 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: La bibliographie de Jacques Lerot impressionne. Par son volume - tout au long de sa carriere, il a ete un auteur fecond - , mais aussi par sa qualite - ainsi, son Precis de linguistique generale (Paris, editions de Minuit, 1993) - et par l'ouverture d'esprit qu'elle manifeste. A l'occasion de son depart a la retraite, vingt et un amis - collegues de Belgique ou de l'etranger, anciens etudiants ou doctorants - se sont reunis a l'instigation de Heinz Bouillon pour proposer 18 articles, ecrits en francais, allemand, neerlandais ou anglais, quatre langues que Jacques Lerot pratique assidument. Comme les horizons de Jacques sont larges, les sujets etudies sont multiculturels, abordant des regions aussi bien proches que lointaines comme le Burundi ou Madagascar. Ils illustrent aussi la multiplicite des diverses approches possibles dans l'etude des faits de langue, passant de la linguistique a la litterature sans oublier la didactique. Dans sa vision scientifique, Jacques Lerot a toujours soutenu que toute explication avait sa place si l'on distingue des niveaux multiples. Gageons qu'il trouvera pour chacune des contributions ici offertes une belle place dans son systeme de pensee a lui.
Download or read book Nouveau Paris Match written by and published by . This book was released on 2005-12 with total page 1186 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Politische Lageanalyse written by Volker Beismann and published by . This book was released on 1993 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The LLL Algorithm written by Phong Q. Nguyen and published by Springer Science & Business Media. This book was released on 2009-12-02 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book to offer a comprehensive view of the LLL algorithm, this text surveys computational aspects of Euclidean lattices and their main applications. It includes many detailed motivations, explanations and examples.
Download or read book Breaking the Unbreakable written by Jonathan Jogenfors and published by Linköping University Electronic Press. This book was released on 2017-10-23 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis we study device-independent quantum key distribution based on energy-time entanglement. This is a method for cryptography that promises not only perfect secrecy, but also to be a practical method for quantum key distribution thanks to the reduced complexity when compared to other quantum key distribution protocols. However, there still exist a number of loopholes that must be understood and eliminated in order to rule out eavesdroppers. We study several relevant loopholes and show how they can be used to break the security of energy-time entangled systems. Attack strategies are reviewed as well as their countermeasures, and we show how full security can be re-established. Quantum key distribution is in part based on the profound no-cloning theorem, which prevents physical states to be copied at a microscopic level. This important property of quantum mechanics can be seen as Nature's own copy-protection, and can also be used to create a currency based on quantummechanics, i.e., quantum money. Here, the traditional copy-protection mechanisms of traditional coins and banknotes can be abandoned in favor of the laws of quantum physics. Previously, quantum money assumes a traditional hierarchy where a central, trusted bank controls the economy. We show how quantum money together with a blockchain allows for Quantum Bitcoin, a novel hybrid currency that promises fast transactions, extensive scalability, and full anonymity. En viktig konsekvens av kvantmekaniken är att okända kvanttillstånd inte kan klonas. Denna insikt har gett upphov till kvantkryptering, en metod för två parter att med perfekt säkerhet kommunicera hemligheter. Ett komplett bevis för denna säkerhet har dock låtit vänta på sig eftersom en attackerare i hemlighet kan manipulera utrustningen så att den läcker information. Som ett svar på detta utvecklades apparatsoberoende kvantkryptering som i teorin är immun mot sådana attacker. Apparatsoberoende kvantkryptering har en mycket högre grad av säkerhet än vanlig kvantkryptering, men det finns fortfarande ett par luckor som en attackerare kan utnyttja. Dessa kryphål har tidigare inte tagits på allvar, men denna avhandling visar hur även små svagheter i säkerhetsmodellen läcker information till en attackerare. Vi demonstrerar en praktisk attack där attackeraren aldrig upptäcks trots att denne helt kontrollerar systemet. Vi visar också hur kryphålen kan förhindras med starkare säkerhetsbevis. En annan tillämpning av kvantmekanikens förbud mot kloning är pengar som använder detta naturens egna kopieringsskydd. Dessa kvantpengar har helt andra egenskaper än vanliga mynt, sedlar eller digitala banköverföringar. Vi visar hur man kan kombinera kvantpengar med en blockkedja, och man får då man en slags "kvant-Bitcoin". Detta nya betalningsmedel har fördelar över alla andra betalsystem, men nackdelen är att det krävs en kvantdator.
Download or read book Rencontres de Li ge 20 au 23 septembre 2007 written by Jean-Marie Cauchies and published by Brepols. This book was released on 2008 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Real World Cryptography written by David Wong and published by Simon and Schuster. This book was released on 2021-10-19 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: "A staggeringly comprehensive review of the state of modern cryptography. Essential for anyone getting up to speed in information security." - Thomas Doylend, Green Rocket Security An all-practical guide to the cryptography behind common tools and protocols that will help you make excellent security choices for your systems and applications. In Real-World Cryptography, you will find: Best practices for using cryptography Diagrams and explanations of cryptographic algorithms Implementing digital signatures and zero-knowledge proofs Specialized hardware for attacks and highly adversarial environments Identifying and fixing bad practices Choosing the right cryptographic tool for any problem Real-World Cryptography reveals the cryptographic techniques that drive the security of web APIs, registering and logging in users, and even the blockchain. You’ll learn how these techniques power modern security, and how to apply them to your own projects. Alongside modern methods, the book also anticipates the future of cryptography, diving into emerging and cutting-edge advances such as cryptocurrencies, and post-quantum cryptography. All techniques are fully illustrated with diagrams and examples so you can easily see how to put them into practice. Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. About the technology Cryptography is the essential foundation of IT security. To stay ahead of the bad actors attacking your systems, you need to understand the tools, frameworks, and protocols that protect your networks and applications. This book introduces authentication, encryption, signatures, secret-keeping, and other cryptography concepts in plain language and beautiful illustrations. About the book Real-World Cryptography teaches practical techniques for day-to-day work as a developer, sysadmin, or security practitioner. There’s no complex math or jargon: Modern cryptography methods are explored through clever graphics and real-world use cases. You’ll learn building blocks like hash functions and signatures; cryptographic protocols like HTTPS and secure messaging; and cutting-edge advances like post-quantum cryptography and cryptocurrencies. This book is a joy to read—and it might just save your bacon the next time you’re targeted by an adversary after your data. What's inside Implementing digital signatures and zero-knowledge proofs Specialized hardware for attacks and highly adversarial environments Identifying and fixing bad practices Choosing the right cryptographic tool for any problem About the reader For cryptography beginners with no previous experience in the field. About the author David Wong is a cryptography engineer. He is an active contributor to internet standards including Transport Layer Security. Table of Contents PART 1 PRIMITIVES: THE INGREDIENTS OF CRYPTOGRAPHY 1 Introduction 2 Hash functions 3 Message authentication codes 4 Authenticated encryption 5 Key exchanges 6 Asymmetric encryption and hybrid encryption 7 Signatures and zero-knowledge proofs 8 Randomness and secrets PART 2 PROTOCOLS: THE RECIPES OF CRYPTOGRAPHY 9 Secure transport 10 End-to-end encryption 11 User authentication 12 Crypto as in cryptocurrency? 13 Hardware cryptography 14 Post-quantum cryptography 15 Is this it? Next-generation cryptography 16 When and where cryptography fails
Download or read book Computer Viruses from theory to applications written by Eric Filiol and published by Springer Science & Business Media. This book was released on 2006-03-30 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt: A precise and exhaustive description of different types of malware from three different points of view, namely the theoretical fundamentals of computer virology, algorithmic and practical aspects of viruses and their potential applications to various areas.
Download or read book Fault Analysis in Cryptography written by Marc Joye and published by Springer Science & Business Media. This book was released on 2012-06-21 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the 1970s researchers noticed that radioactive particles produced by elements naturally present in packaging material could cause bits to flip in sensitive areas of electronic chips. Research into the effect of cosmic rays on semiconductors, an area of particular interest in the aerospace industry, led to methods of hardening electronic devices designed for harsh environments. Ultimately various mechanisms for fault creation and propagation were discovered, and in particular it was noted that many cryptographic algorithms succumb to so-called fault attacks. Preventing fault attacks without sacrificing performance is nontrivial and this is the subject of this book. Part I deals with side-channel analysis and its relevance to fault attacks. The chapters in Part II cover fault analysis in secret key cryptography, with chapters on block ciphers, fault analysis of DES and AES, countermeasures for symmetric-key ciphers, and countermeasures against attacks on AES. Part III deals with fault analysis in public key cryptography, with chapters dedicated to classical RSA and RSA-CRT implementations, elliptic curve cryptosystems and countermeasures using fault detection, devices resilient to fault injection attacks, lattice-based fault attacks on signatures, and fault attacks on pairing-based cryptography. Part IV examines fault attacks on stream ciphers and how faults interact with countermeasures used to prevent power analysis attacks. Finally, Part V contains chapters that explain how fault attacks are implemented, with chapters on fault injection technologies for microprocessors, and fault injection and key retrieval experiments on a widely used evaluation board. This is the first book on this topic and will be of interest to researchers and practitioners engaged with cryptographic engineering.
Download or read book Selected Areas in Cryptography written by Serge Vaudenay and published by Springer. This book was released on 2003-06-30 with total page 369 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed post-proceedings of the 8th International Workshop on Selected Areas in Cryptology, SAC 2001, held in Toronto, Ontario, Canada in August 2001. The 25 revised full papers presented together with the abstracts of two invited talks were carefully reviewed and selected during two rounds of refereeing and revision. The papers are organized in topical sections on cryptanalysis, Boolean functions, Rijndael, elliptic curves and efficient implementation, public key systems, and protocols and MAC.
Download or read book Digital Watermarking written by Hyoung Joong Kim and published by Springer Science & Business Media. This book was released on 2011-01-14 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the thoroughly refereed post-conference proceedings of the 9th Interntaional Workshop on Digital Watermarking, IWDW 2010, held in Seoul, Korea, in October 2010. The 26 revised full papers presented were carefully reviewed and selected from 48 submissions. The papers are organized in topical sections on forensics, visual cryptography, robust watermarking, steganography, fingerprinting, and steganalysis.
Download or read book Guide to Pairing Based Cryptography written by Nadia El Mrabet and published by CRC Press. This book was released on 2017-01-06 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to efficient pairing computations and implementations, useful tools for cryptographers working on topics like identity-based cryptography and the simplification of existing protocols like signature schemes. As well as exploring the basic mathematical background of finite fields and elliptic curves, Guide to Pairing-Based Cryptography offers an overview of the most recent developments in optimizations for pairing implementation. Each chapter includes a presentation of the problem it discusses, the mathematical formulation, a discussion of implementation issues, solutions accompanied by code or pseudocode, several numerical results, and references to further reading and notes. Intended as a self-contained handbook, this book is an invaluable resource for computer scientists, applied mathematicians and security professionals interested in cryptography.
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.
