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Codes, Ciphers and Spies

Codes, Ciphers and Spies PDF Author: John F. Dooley
Publisher: Springer
ISBN: 3319294156
Category : Science
Languages : en
Pages : 280

Book Description
When the United States declared war on Germany in April 1917, it was woefully unprepared to wage a modern war. Whereas their European counterparts already had three years of experience in using code and cipher systems in the war, American cryptologists had to help in the building of a military intelligence unit from scratch. This book relates the personal experiences of one such character, providing a uniquely American perspective on the Great War. It is a story of spies, coded letters, plots to blow up ships and munitions plants, secret inks, arms smuggling, treason, and desperate battlefield messages. Yet it all begins with a college English professor and Chaucer scholar named John Mathews Manly. In 1927, John Manly wrote a series of articles on his service in the Code and Cipher Section (MI-8) of the U.S. Army’s Military Intelligence Division (MID) during World War I. Published here for the first time, enhanced with references and annotations for additional context, these articles form the basis of an exciting exploration of American military intelligence and counter-espionage in 1917-1918. Illustrating the thoughts of prisoners of war, draftees, German spies, and ordinary Americans with secrets to hide, the messages deciphered by Manly provide a fascinating insight into the state of mind of a nation at war.

Codes, Ciphers and Spies

Codes, Ciphers and Spies PDF Author: John F. Dooley
Publisher: Springer
ISBN: 3319294156
Category : Science
Languages : en
Pages : 280

Book Description
When the United States declared war on Germany in April 1917, it was woefully unprepared to wage a modern war. Whereas their European counterparts already had three years of experience in using code and cipher systems in the war, American cryptologists had to help in the building of a military intelligence unit from scratch. This book relates the personal experiences of one such character, providing a uniquely American perspective on the Great War. It is a story of spies, coded letters, plots to blow up ships and munitions plants, secret inks, arms smuggling, treason, and desperate battlefield messages. Yet it all begins with a college English professor and Chaucer scholar named John Mathews Manly. In 1927, John Manly wrote a series of articles on his service in the Code and Cipher Section (MI-8) of the U.S. Army’s Military Intelligence Division (MID) during World War I. Published here for the first time, enhanced with references and annotations for additional context, these articles form the basis of an exciting exploration of American military intelligence and counter-espionage in 1917-1918. Illustrating the thoughts of prisoners of war, draftees, German spies, and ordinary Americans with secrets to hide, the messages deciphered by Manly provide a fascinating insight into the state of mind of a nation at war.

Codes, Ciphers and Secret Writing

Codes, Ciphers and Secret Writing PDF Author: Martin Gardner
Publisher: Courier Corporation
ISBN: 9780486247618
Category : Juvenile Nonfiction
Languages : en
Pages : 100

Book Description
Explains various methods used in cryptography and presents examples to help readers in breaking secret codes

Codes and Ciphers

Codes and Ciphers PDF Author: R. F. Churchhouse
Publisher: Cambridge University Press
ISBN: 9780521008907
Category : Business & Economics
Languages : en
Pages : 254

Book Description
Publisher Description

Mysterious Messages: A History of Codes and Ciphers

Mysterious Messages: A History of Codes and Ciphers PDF Author: Gary Blackwood
Publisher: Penguin
ISBN: 1101151013
Category : Juvenile Nonfiction
Languages : en
Pages : 144

Book Description
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!

Unsolved!

Unsolved! PDF Author: Craig P. Bauer
Publisher: Princeton University Press
ISBN: 0691192294
Category : Computers
Languages : en
Pages : 636

Book Description
"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 Spy's Guide to Secret Codes and Ciphers

The Spy's Guide to Secret Codes and Ciphers PDF Author: Jim Wiese
Publisher:
ISBN: 9780439336406
Category : Juvenile Nonfiction
Languages : en
Pages : 52

Book Description
Secret Codes and Ciphers.

Code Breaker, Spy Hunter

Code Breaker, Spy Hunter PDF Author: Laurie Wallmark
Publisher: Abrams
ISBN: 1683357043
Category : Juvenile Nonfiction
Languages : en
Pages : 48

Book Description
Decode the story of Elizebeth Friedman, the cryptologist who took down gangsters and Nazi spies In this picture book biography, young readers will learn all about Elizebeth Friedman (1892–1980), a brilliant American code breaker who smashed Nazi spy rings, took down gangsters, and created the CIA's first cryptology unit. Her story came to light when her secret papers were finally declassified in 2015. From thwarting notorious rumrunners with only paper and pencil to “counter-spying into the minds and activities of” Nazis, Elizebeth held a pivotal role in the early days of US cryptology. No code was too challenging for her to crack, and Elizebeth’s work undoubtedly saved thousands of lives. Extensive back matter includes explanations of codes and ciphers, further information on cryptology, a bibliography, a timeline of Elizebeth’s life, plus secret messages for young readers to decode.

Spy Codes and Ciphers

Spy Codes and Ciphers PDF Author: Susan K. Mitchell
Publisher: Enslow Publishing, LLC
ISBN: 0766046982
Category : Juvenile Nonfiction
Languages : en
Pages : 50

Book Description
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.

The Secret War

The Secret War PDF Author: Max Hastings
Publisher: HarperCollins
ISBN: 0062259296
Category : History
Languages : en
Pages : 672

Book Description
"Monumental." --New York Times Book Review NEW YORK TIMES BESTSELLER From one of the foremost historians of the period and the acclaimed author of Inferno and Catastrophe: 1914, The Secret War is a sweeping examination of one of the most important yet underexplored aspects of World War II—intelligence—showing how espionage successes and failures by the United States, Britain, Russia, Germany, and Japan influenced the course of the war and its final outcome. Spies, codes, and guerrillas played unprecedentedly critical roles in the Second World War, exploited by every nation in the struggle to gain secret knowledge of its foes, and to sow havoc behind the fronts. In The Secret War, Max Hastings presents a worldwide cast of characters and some extraordinary sagas of intelligence and resistance, to create a new perspective on the greatest conflict in history.

Codes, Ciphers, Secrets and Cryptic Communication

Codes, Ciphers, Secrets and Cryptic Communication PDF Author: Fred B. Wrixon
Publisher: Black Dog & Leventhal Pub
ISBN: 9781579124854
Category : Language Arts & Disciplines
Languages : en
Pages : 704

Book Description
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!