Mysterious Messages: A History of Codes and Ciphers

Mysterious Messages: A History of Codes and Ciphers
Author: Gary Blackwood
Publisher: Penguin
Total Pages: 234
Release: 2009-10-29
Genre: Juvenile Nonfiction
ISBN: 1101151013

History?s amazing secrets and codes?and how to crack them yourself. This fascinating look at history?s most mysterious messages is packed with puzzles to decode and ciphers that kids can use themselves. Here are the encrypted notes of Spartan warriors, the brilliant code-crackers of Elizabeth I, secret messages of the American Revolution, spy books of the Civil War, the famous Enigma Machine, and the Navajo code talkers. As computers change the way we communicate, codes today are more intriguing than ever. From invisible ink to the CIA, this exciting trip through history is a hands-on, interactive experience? so get cracking!

Codes, Ciphers, Secrets and Cryptic Communication

Codes, Ciphers, Secrets and Cryptic Communication
Author: Fred B. Wrixon
Publisher: Black Dog & Leventhal Pub
Total Pages: 704
Release: 2005
Genre: Language Arts & Disciplines
ISBN: 9781579124854

Covert communications have won or lost wars, exposed political intrigue, disguised secret religions and societies, and secured financial transactions. This immensely readable world history of clandestine communication—finally in paperback—includes illustrations, diagrams, and puzzles that instruct readers how to become amateur cryptographers. It’s the last word on secret languages!

Codes and Ciphers - A History of Cryptography

Codes and Ciphers - A History of Cryptography
Author: Alexander D'Agapeyeff
Publisher: Read Books Ltd
Total Pages: 153
Release: 2016-08-26
Genre: Computers
ISBN: 1473350913

This vintage book contains Alexander D’Agapeyeff’s famous 1939 work, Codes and Ciphers - A History of Cryptography. Cryptography is the employment of codes and ciphers to protect secrets, and it has a long and interesting history. This fantastic volume offers a detailed history of cryptography from ancient times to modernity, written by the Russian-born English cryptographer, Alexander D'Agapeyeff. The contents include: - The beginnings of Cryptography - From the Middle Ages Onwards - Signals, Signs, and Secret Languages - Commercial Codes - Military Codes and Ciphers - Types of Codes and Ciphers - Methods of Deciphering Many antiquarian texts such as this, especially those dating back to the 1900s and before, are increasingly hard to come by and expensive, and it is with this in mind that we are republishing this book now in an affordable, modern, high quality edition. It comes complete with a specially commissioned new biography of the author.

Secret Code Book: Substitution Ciphers

Secret Code Book: Substitution Ciphers
Author: John Redden
Publisher: Lulu.com
Total Pages: 58
Release: 2017-09-02
Genre: Education
ISBN: 1387346083

The Secret Code Book is a short introduction to substitution ciphers. The chapters ease young readers into the concept of rotation ciphers and work their way up to the Vigenère cipher. Along the way, readers will also learn about geometric approaches to secret codes such as the Pigpen cipher. As a bonus, there is a brief description of frequency analysis and how it is used to crack secret codes. frper gpbqr obbx In addition, this book actively challenges readers with practice missions where answers are listed in the back. Also, there is a cut-out rotation template that is provided to make your very own cipher disk! After reading this book, you will have all the basic tools needed to create secret messages.

Unsolved!

Unsolved!
Author: Craig P. Bauer
Publisher: Princeton University Press
Total Pages: 636
Release: 2019-06-18
Genre: Computers
ISBN: 0691192294

"In 1953, a man was found dead from cyanide poisoning near the Philadelphia airport with a picture of a Nazi aircraft in his wallet. Taped to his abdomen was an enciphered message. In 1912, a book dealer named Wilfrid Voynich came into possession of an illuminated cipher manuscript once belonging to Emperor Rudolf II, who was obsessed with alchemy and the occult. Wartime codebreakers tried--and failed--to unlock the book's secrets, and it remains an enigma to this day. In this lively and entertaining book, Craig Bauer examines these and other vexing ciphers yet to be cracked. Some may reveal the identity of a spy or serial killer, provide the location of buried treasure, or expose a secret society--while others may be elaborate hoaxes. Unsolved! begins by explaining the basics of cryptology, and then explores the history behind an array of unsolved ciphers. It looks at ancient ciphers, ciphers created by artists and composers, ciphers left by killers and victims, Cold War ciphers, and many others. Some are infamous, like the ciphers in the Zodiac letters, while others were created purely as intellectual challenges by figures such as Nobel Prize-winning physicist Richard P. Feynman. Bauer lays out the evidence surrounding each cipher, describes the efforts of geniuses and eccentrics--in some cases both--to decipher it, and invites readers to try their hand at puzzles that have stymied so many others. Unsolved! takes readers from the ancient world to the digital age, providing an amazing tour of many of history's greatest unsolved ciphers"--

The Book of Codes

The Book of Codes
Author: Paul Lunde
Publisher:
Total Pages: 0
Release: 2009
Genre: Ciphers
ISBN: 9780520260139

This illustrated encyclopedia surveys the history and development of code-making and code-breaking in all areas of culture and society from hieroglyphs and runes to DNA, the Zodiac Killer, graffiti, and beyond.

Spy Codes and Ciphers

Spy Codes and Ciphers
Author: Susan K. Mitchell
Publisher: Enslow Publishing, LLC
Total Pages: 50
Release: 2012-01-01
Genre: Juvenile Nonfiction
ISBN: 0766046982

Can flashing lights send out a secret message? Did a famous spy use sketches of butterflies to hide messages? Can a digital photo hide a secret code? For centuries, spies have used many different ways to pass secret information. Codes and ciphers keep information safe from the enemy. Author Susan K. Mitchell uncovers the secrets to the amazing world of spy codes and ciphers.

Impractical Python Projects

Impractical Python Projects
Author: Lee Vaughan
Publisher: No Starch Press
Total Pages: 426
Release: 2018-11-27
Genre: Computers
ISBN: 1593278918

Impractical Python Projects is a collection of fun and educational projects designed to entertain programmers while enhancing their Python skills. It picks up where the complete beginner books leave off, expanding on existing concepts and introducing new tools that you'll use every day. And to keep things interesting, each project includes a zany twist featuring historical incidents, pop culture references, and literary allusions. You'll flex your problem-solving skills and employ Python's many useful libraries to do things like: - Help James Bond crack a high-tech safe with a hill-climbing algorithm - Write haiku poems using Markov Chain Analysis - Use genetic algorithms to breed a race of gigantic rats - Crack the world's most successful military cipher using cryptanalysis - Derive the anagram, "I am Lord Voldemort" using linguistical sieves - Plan your parents' secure retirement with Monte Carlo simulation - Save the sorceress Zatanna from a stabby death using palingrams - Model the Milky Way and calculate our odds of detecting alien civilizations - Help the world's smartest woman win the Monty Hall problem argument - Reveal Jupiter's Great Red Spot using optical stacking - Save the head of Mary, Queen of Scots with steganography - Foil corporate security with invisible electronic ink Simulate volcanoes, map Mars, and more, all while gaining valuable experience using free modules like Tkinter, matplotlib, Cprofile, Pylint, Pygame, Pillow, and Python-Docx. Whether you're looking to pick up some new Python skills or just need a pick-me-up, you'll find endless educational, geeky fun with Impractical Python Projects.

The History of Cryptography

The History of Cryptography
Author: Susan Meyer
Publisher: The Rosen Publishing Group, Inc
Total Pages: 66
Release: 2016-12-15
Genre: Juvenile Nonfiction
ISBN: 1508173044

The intriguing tale of cryptography stretches all the way back into ancient times and has been evolving ever since. From Julius Caesar to the modern cryptography of computers, readers will be enraptured by the stories and examples of how some of the greatest minds of history have figured out how to make and break codes. Engaging text includes samples of codes throughout the lively story of cryptography. Readers will quickly become absorbed by this fast-paced, code-cracking history chock-full of mystery and intrigue.