This book constitutes the refereed proceedings of the 8th International Conference on Trust and Privacy in Digital Business, TrustBus 2011, held in Toulouse, France, in August/September 2011 in conjunction with DEXA 2011. The 18 revised full papers presented were carefully reviewed and selected from numerous submissions. The papers are organized in the following topical sections: identity and trust management; security and privacy models for pervasive information systems; reliability and security of content and data; authentication and authorization in digital business; intrusion detection and information filtering; management of privacy and confidentiality; and cryptographic protocols/usability of security.

This book is an overview of current research in theoretical and practical aspects of security in distributed systems, in particular in information systems and related security tools. Issues treated in the book are security in XML-based management systems, security of multimedia data, technology and use of smart cards, applications of cryptography, security of distributed applications and adherence to standards, model and security issues associated with the organization of components (architectures) of information systems, such as networked systems (Internet and WWW-based), client/server architectures, andlayered architectures. Contributions come both from the academic and the industrial field.

The two volume set CCIS 1030 and 1031 constitutes the refereed proceedings of the Second International Conference on Computational Intelligence, Communications, and Business Analytics, CICBA 2018, held in Kalyani, India, in July 2018. The 76 revised full papers presented in the two volumes were carefully reviewed and selected from 240 submissions. The papers are organized in topical sections on computational intelligence; signal processing and communications; microelectronics, sensors, and intelligent networks; data science & advanced data analytics; intelligent data mining & data warehousing; and computational forensics (privacy and security).

In October 2000, the US National Institute of Standards and Technology selected the block cipher Rijndael as the Advanced Encryption Standard (AES). AES is expected to gradually replace the present Data Encryption Standard (DES) as the most widely applied data encryption technology. This book by the designers of the block cipher presents Rijndael from scratch. The underlying mathematics and the wide trail strategy as the basic design idea are explained in detail and the basics of differential and linear cryptanalysis are reworked. Subsequent chapters review all known attacks against the Rijndael structure and deal with implementation and optimization issues. Finally, other ciphers related to Rijndael are presented. This book is THE authoritative guide to the Rijndael algorithm and AES. Professionals, researchers, and students active or interested in data encryption will find it a valuable source of information and reference.

The 13th International Conference on Practice and Theory in Public Key Cryp- ' tography(PKC2010)washeldMay26-28,2010,attheEcoleNormaleSup' erieure (ENS) in Paris, France. PKC 2010 was sponsored by the International Associ- ' ation for Cryptologic Research (IACR), in cooperation with the Ecole Normale Sup' erieure (ENS) and the Institut National de Recherche en Informatique et en Automatique (INRIA). The General Chairs of the conference were Michel Abdalla and Pierre-Alain Fouque. The conference received a record number of 145 submissions and each s- missionwas assignedto at least 3 committee members. Submissions co-authored by members of the Program Committee were assigned to at least ?ve comm- tee members. Due to the large number of high-quality submissions, the review process was challenging and we are deeply grateful to the 34 committee m- bers and the 163 external reviewers for their outstanding work. After extensive discussions, the Program Committee selected 29 submissions for presentation during the conference and these are the articles that are included in this v- ume. The best paper was awardedto Petros Mol and Scott Yilek for their paper "Chosen-Ciphertext Security from Slightly Lossy Trapdoor Functions. " The - view process was run using the iChair software, written by Thomas Baign' eres and Matthieu Finiasz from EPFL, LASEC, Switzerland, and we are indebted to them for letting us use their software. The program also included two invited talks: it was a great honor to have Daniele Micciancio and Jacques Stern as invited speakers.

The three volume-set, LNCS 10991, LNCS 10992, and LNCS 10993, constitutes the refereed proceedings of the 38th Annual International Cryptology Conference, CRYPTO 2018, held in Santa Barbara, CA, USA, in August 2018. The 79 revised full papers presented were carefully reviewed and selected from 351 submissions. The papers are organized in the following topical sections: secure messaging; implementations and physical attacks prevention; authenticated and format-preserving encryption; cryptoanalysis; searchable encryption and differential privacy; secret sharing; encryption; symmetric cryptography; proofs of work and proofs of stake; proof tools; key exchange; symmetric cryptoanalysis; hashes and random oracles; trapdoor functions; round optimal MPC; foundations; lattices; lattice-based ZK; efficient MPC; quantum cryptography; MPC; garbling; information-theoretic MPC; oblivious transfer; non-malleable codes; zero knowledge; and obfuscation.

These are the proceedings of Eurocrypt 2008, the 27th Annual IACR Eu- crypt Conference. The conference was sponsored by the International Asso- ation for Cryptologic Research (www.iacr.org), this year in cooperation with Tubitak (www.tubitak.gov.tr). The Eurocrypt 2008 Program Committee (PC) consisted of 28 members whose names are listed on the next page. There were 163 papers submitted to the conference and the PC chose 31 of them. Each paper was assigned to at least three PC members, who either handled it themselves or assigned it to an external referee. After the reviews were submitted, the committee deliberated both online for severalweeks and?nally ina face-to-facemeetingheldinBristol. Papers were refereed anonymously, with PC papers having a minimum of ?ve reviewers. All of our deliberations were aided by theWeb Submission and- viewSoftware written and maintainedby Shai Halevi. In addition to noti?cation of the decision of the committee, authors received reviews; the default for any report given to the committee was that it should be available to the authors as well.

This book covers newly developed and novel Steganography techniques and algorithms. The book outlines techniques to provide security to a variety of applications using Steganography, with the goal of both hindering an adversary from decoding a hidden message, and also preventing an adversary from suspecting the existence of covert communications. The book looks into applying these newly designed and improved algorithms to provide a new and efficient Steganographic system, called Characteristic Region-Based Image Steganography (CR-BIS). The algorithms combine both the robustness of the Speeded-Up Robust Features technique (SURF) and Discrete Wavelet Transform (DWT) to achieve characteristic region Steganography synchronization. The book also touches on how to avoid hiding data in the whole image by dynamically selecting characteristic regions for the process of embedding. Applies and discusses innovative techniques for hiding text in a digital image file or even using it as a key to the encryption; Provides a variety of methods to achieve characteristic region Steganography synchronization; Shows how Steganography improves upon cryptography by using obscurity features.

Here is a highly relevant book that covers a wide array of key aspects in information security. It constitutes the refereed proceedings of the 12th Australasian Conference on Information Security and Privacy held in Townsville, Australia in July 2007. The 33 revised full papers presented were carefully reviewed and selected from 132 submissions. The papers are organized in topical sections on stream ciphers, hashing, biometrics, secret sharing, cryptanalysis, public key cryptography, authentication, e-commerce, and security.

Conquer complex and interesting programming challenges by building robust and concurrent applications with caches, cryptography, and parallel programming. Key Features Understand how to use .NET frameworks like the Task Parallel Library (TPL)and CryptoAPI Develop a containerized application based on microservices architecture Gain insights into memory management techniques in .NET Core Book DescriptionThis Learning Path shows you how to create high performing applications and solve programming challenges using a wide range of C# features. You'll begin by learning how to identify the bottlenecks in writing programs, highlight common performance pitfalls, and apply strategies to detect and resolve these issues early. You'll also study the importance of micro-services architecture for building fast applications and implementing resiliency and security in .NET Core. Then, you'll study the importance of defining and testing boundaries, abstracting away third-party code, and working with different types of test double, such as spies, mocks, and fakes. In addition to describing programming trade-offs, this Learning Path will also help you build a useful toolkit of techniques, including value caching, statistical analysis, and geometric algorithms. This Learning Path includes content from the following Packt products: C# 7 and .NET Core 2.0 High Performance by Ovais Mehboob Ahmed Khan Practical Test-Driven Development using C# 7 by John Callaway, Clayton Hunt The Modern C# Challenge by Rod Stephens What you will learn Measure application performance using BenchmarkDotNet Leverage the Task Parallel Library (TPL) and Parallel Language Integrated Query (PLINQ)library to perform asynchronous operations Modify a legacy application to make it testable Use LINQ and PLINQ to search directories for files matching patterns Find areas of polygons using geometric operations Randomize arrays and lists with extension methods Use cryptographic techniques to encrypt and decrypt strings and files Who this book is forIf you want to improve the speed of your code and optimize the performance of your applications, or are simply looking for a practical resource on test driven development, this is the ideal Learning Path for you. Some familiarity with C# and .NET will be beneficial.

Die Kommunikation ber das Internet ist quasi ffentlich: Dritte k nnen Nachrichten mitlesen, abfangen oder f lschen. Genauso kann ein Sender einer Nachricht behaupten, diese nie gesendet zu haben, und ein Empf nger kann behaupten, eine Nachricht nie erhalten zu haben. Abhilfe schafft die Kryptografie. Sie erm glicht nicht nur die Verschl sselung von Nachrichten, sondern auch digitale Unterschriften, die Authentifizierung und die Anonymisierung von Kommunikationspartnern. Das hier vorliegende Buch ist eine Einf hrung in die Kryptografie f r Studierende - von der symmetrischen ber die asymmetrische Verschl sselung bis hin zu Hash-Funktionen. Umfassend, keinesfalls oberfl chlich, aber ohne Vorwissen verst ndlich.