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This book describes and analyses many cipher systems ranging from the earliest and most elementary to the most recent and sophisticated(RSA and DES).
A cipher is a scheme for creating coded messages for the secure exchange of information. Throughout history, many different coding schemes have been devised. One of the oldest and simplest mathematical systems was used by Julius Caesar. This is where Mathematical Ciphers begins. Building on that simple system, Young moves on to more complicated schemes, ultimately ending with the RSA cipher, which is used to provide security for the Internet. This book is structured differently from most mathematics texts. It does not begin with a mathematical topic, but rather with a cipher. The mathematics is developed as it is needed; the applications motivate the mathematics. As is typical in mathematics textbooks, most chapters end with exercises. Many of these problems are similar to solved examples and are designed to assist the reader in mastering the basic material. A few of the exercises are one-of-a-kind, intended to challenge the interested reader. Implementing encryption schemes is considerably easier with the use of the computer. For all the ciphers introduced in this book, JavaScript programs are available from the Web. In addition to developing various encryption schemes, this book also introduces the reader to number theory. Here, the study of integers and their properties is placed in the exciting and modern context of cryptology. Mathematical Ciphers can be used as a textbook for an introductory course in mathematics for all majors. The only prerequisite is high school mathematics.
In this introductory textbook the author explains the key topics in cryptography. He takes a modern approach, where defining what is meant by "secure" is as important as creating something that achieves that goal, and security definitions are central to the discussion throughout. The author balances a largely non-rigorous style — many proofs are sketched only — with appropriate formality and depth. For example, he uses the terminology of groups and finite fields so that the reader can understand both the latest academic research and "real-world" documents such as application programming interface descriptions and cryptographic standards. The text employs colour to distinguish between public and private information, and all chapters include summaries and suggestions for further reading. This is a suitable textbook for advanced undergraduate and graduate students in computer science, mathematics and engineering, and for self-study by professionals in information security. While the appendix summarizes most of the basic algebra and notation required, it is assumed that the reader has a basic knowledge of discrete mathematics, probability, and elementary calculus.
Choice Outstanding Academic Title 2014 Literature after Globalization offers a detailed study of recent literary and theoretical responses to technology, globalization, and national identity. Focusing on texts of the the 1990s and 2000s, particularly novels and other writing by Mark Danielewski, Hari Kunzru, Indra Sinha, and Neal Stephenson, it charts a departure from narratives of globalization which declare the collapse of national cultures, and it considers how national sovereignty has been reinvented and reasserted in the face of technology's transnational effects. Drawing upon recent theoretical responses to technology and culture (including work by Yochai Benkler, Manuel Castells, Gilles Deleuze, Jacques Derrida, N. Katherine Hayles, Paul Virilio, and McKenzie Wark) this book will explore how, in these novels, the notion of an inclusive globalization has been replaced by a sense of national globalism.

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