Modern Cryptography: applied mathematics for encryption and information security

This comprehensive guide to modern data encryption makes cryptography accessible to information security professionals of all skill levels--with no math expertise required Cryptography underpins today's cyber-security; however, few information security professionals have a solid understanding of these encryption methods due to their complex mathematical makeup. Modern Cryptography: Applied Mathematics for Encryption and Information Security leads readers through all aspects of the field, providing a comprehensive overview of cryptography and practical instruction on the latest encryption methods. The book begins with an overview of the evolution of cryptography and moves on to modern protocols with a discussion of hashes, cryptanalysis, and steganography. From there, seasoned security author Chuck Easttom provides readers with the complete picture--full explanations of real-world applications for cryptography along with detailed implementation instructions. Unlike similar titles on the topic, this reference assumes no mathematical expertise--the reader will be exposed to only the formulas and equations needed to master the art of cryptography. Concisely explains complex formulas and equations and makes the math easy Teaches even the information security novice critical encryption skills Written by a globally-recognized security expert who has taught cryptography to various government and civilian groups and organizations around the world

Description based upon print version of record.

Blowfish.

Cover -- Title Page -- Copyright Page -- Dedication -- About the Author -- Contents at a Glance -- Contents -- Acknowledgments -- Introduction -- PART I Foundations -- CHAPTER 1 History of Cryptography to the 1800s -- Why Study Cryptography? -- What Is Cryptography? -- Substitution Ciphers -- The Caesar Cipher -- Atbash Cipher -- Affine Ciphers -- Homophonic Substitution -- Polybius Cipher -- Null Cipher -- Multi-Alphabet Substitution -- Devices -- Book Ciphers -- Transposition Ciphers -- Reverse Order -- Rail Fence Cipher -- Geometric Shape Cipher -- Columnar Cipher -- Combinations

Conclusions -- Test Your Knowledge -- Answers -- Endnotes -- CHAPTER 2 History of Cryptography from the 1800s -- Cryptography Marches On -- Playfair Cipher -- Two-Square Cipher -- Four-Square Cipher -- Hill Cipher -- ADFGX and ADFGVX Ciphers -- Bifid Cipher -- Gronsfeld Cipher -- Vernam Cipher -- Cryptography Comes of Age -- Enigma -- SIGABA -- Lorenz Cipher -- IFF Systems -- The NSA: The Early Years -- Conclusions -- Test Your Knowledge -- Answers -- Endnotes -- CHAPTER 3 Basic Information Theory -- The Information Age -- Claude Shannon -- Theorem 1: Shannon's Source Coding Theorem

Theorem 2: Noisy …