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Ciphers, Codes, Steganography & Secret Messages Discover the science of cryptology! This book is a complete introduction to codes, ciphers and secret messages. You will discover: How codes and ciphers work How secret messages can be concealed in apparently innocuous messages (steganography) How codebreakers and cryptanalysts break codes and ciphers Many examples of how codes and ciphers have changed history and continue to shape the world to this day Here is the table of contents: Table of Contents Introduction: What are Codes, Ciphers and Steganography? Chapter 1: Codes used for Communication Flag Code Semaphore Code Polybius Square Optical Telegraph Codes Electrical Telegraph Codes - International Morse Code - Baudot Code - Murray Code and ITA 2 - ASCII Computer Codes Chapter 2: Caesar Ciphers Using a Caesar Cipher Variations of the Caesar Cipher - ROT13 - ROT5 - ROT18 - ROT47 - Avgad and Albam Breaking Caesar Ciphers Chapter 3: Simple Substitution Ciphers Atbash Cipher Simple Alphabet Substitution Ciphers Simple Symbolic Substitution Ciphers - Pigpen Cipher Breaking Simple Substitution Ciphers - Frequency Analysis - Cribs Defeating Frequency Analysis - Short Messages - Homophony - Null Characters - Other Methods Chapter 4: Transposition Ciphers Scytale Rail Fence Ciphers Route Ciphers Columnar Transposition Ciphers Double Columnar Transposition Ciphers Myszkowski Transposition Ciphers Disrupted Transposition Ciphers Grille Ciphers - Trellis Ciphers - Fleissner Ciphers - Crossword Ciphers Chapter 5: Fractionation and Diffusion Bifid Cipher Trifid Cipher Chapter 6: Polygraphic Substitution Advantages and Disadvantages of Polygraphic Ciphers Playfair Cipher Two-Square Cipher Four-Square Cipher Chapter 7: Polyalphabetic Ciphers Alberti Cipher Trithemius Cipher Vigenère Ciphers Beaufort and Variant Beaufort Cipher Autokey Ciphers Chapter 8: Enigma The Enigma Machine How Enigma was Broken - Early British Efforts - Polish Cipher Bureau - Polish Cooperation with the Western Allies - PC Bruno - Cadix - British Efforts Against Italian Naval Enigma - The British Focus on Cribs - British and American Bombes - German Suspicions Chapter 9: Perfect Ciphers Vernam Cipher One-Time Pads Difficulties of Implementing a Perfect Cipher - Protecting the Key - Not Reusing the Key - Randomness in the Key - The Equipment Used Must Be Secure Lorenz Cipher - Cryptanalysis of the Lorenz Cipher Chapter 10: Codewords One-time Code Nomenclator Midway Chapter 11: Book Ciphers Book Word Substitution Ciphers Book Letter Substitution Ciphers Running Key Ciphers Chapter 12: Computer Cryptography Symmetric-Key Cryptography Public-Key Cryptography Cryptographic Hashes and Digital Signatures Chapter 13: Steganography and Hidden Messages Null Ciphers Bacon’s Cipher Grilles Digital Steganography - Image Files - Audio Files - Text and Word Processor Files - Network Communications - Other Examples Chapter 14: Famous Codes, Ciphers and Cryptograms – Solved and Unsolved Voynich Manuscript Babington Plot Ciphers Olivier Levasseur Shugborough Inscription Copiale Cipher The Gold Bug Beale Ciphers Rohonc Codex D'Agapeyeff Cipher Dorabella Cipher Zimmerman Telegram Zodiac Killer Ciphers Kryptos The Magic Words are Squeamish Ossifrage Ricky McCormick's Encrypted Notes Smithy Code Paperback Book Click here to get it from Amazon.com (US and International readers) Click here to get it from Amazon.co.uk (UK readers) eBook (Electronic Book) - Available for Kindle This book has been specially prepared for use on the Kindle. Click here to get it from Amazon.com (US and International readers) Click here to get it from Amazon.co.uk (UK readers)

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