German Naval Code Breakers
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German Naval Code Breakers
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Author : Jak P. Mallmann Showell
language : en
Publisher: Ian Allan Publishing
Release Date : 2003
German Naval Code Breakers written by Jak P. Mallmann Showell and has been published by Ian Allan Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with History categories.
The first definitive account of German naval code breakers during World War II. The book looks at how German code-breaking developed after the traumas of defeat in 1918, the nature of the codes used by the British and US navies during WWII, how the German code- breaking department was organised and more.
U Boat Hunters
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Author : Robert M. Grant
language : en
Publisher: Periscope Publishing Ltd.
Release Date : 2003
U Boat Hunters written by Robert M. Grant and has been published by Periscope Publishing Ltd. this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with History categories.
Robert Grant has made a lifelong study of U-boat operations in the Great War. He explains how the code breakers at the Admiralty's Room 40 were able to break into the German naval codes during World War I, offering the Navy the opportunity to hunt down and destroy U-boats at sea.
Codebreakers
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Author : Francis Harry Hinsley
language : en
Publisher: Oxford University Press, USA
Release Date : 2001
Codebreakers written by Francis Harry Hinsley and has been published by Oxford University Press, USA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Biography & Autobiography categories.
The story of Bletchley Park, the successful intelligence operation that cracked Germany's Enigma Code. Photos.
Code Girls
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Author : Liza Mundy
language : en
Publisher: Hachette Books
Release Date : 2017-10-10
Code Girls written by Liza Mundy and has been published by Hachette Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-10-10 with History categories.
The award-winning New York Times bestseller about the American women who secretly served as codebreakers during World War II--a "prodigiously researched and engrossing" (New York Times) book that "shines a light on a hidden chapter of American history" (Denver Post). Recruited by the U.S. Army and Navy from small towns and elite colleges, more than ten thousand women served as codebreakers during World War II. While their brothers and boyfriends took up arms, these women moved to Washington and learned the meticulous work of code-breaking. Their efforts shortened the war, saved countless lives, and gave them access to careers previously denied to them. A strict vow of secrecy nearly erased their efforts from history; now, through dazzling research and interviews with surviving code girls, bestselling author Liza Mundy brings to life this riveting and vital story of American courage, service, and scientific accomplishment.
Codebreaking And Signals Intelligence
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Author : Christopher Andrew
language : en
Publisher: Routledge
Release Date : 2021-05-30
Codebreaking And Signals Intelligence written by Christopher Andrew and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-30 with History categories.
Despite publicity given to the successes of British and American codebreakers during the Second World War, the study of signals intelligence is still complicated by governmental secrecy over even the most elderly peacetime sigint. This book, first published in 1986, lifts the veil on some of these historical secrets. Christopher Andrew and Keith Neilson cast new light on how Tsarist codebreakers penetrated British code and cypher systems. John Chapman’s study of German military codebreaking represents a major advance in our understanding of cryptanalysis during the Weimar Republic. The history of the Government Code and Cypher School – forerunner of today’s GCHQ – by its operational head, the late A.G. Denniston, provides both a general assessment of the achievements of British cryptanalysis between the wars and a tantalising glimpse of what historians may one day find in GCHQ’s forbidden archives. The distinguished cryptanalyst of Bletchley Park, the late Gordon Welchman, describes in detail how the Ultra programme defeated the German Enigma machine, while another Bletchley Park cryptographer, Christopher Morris, reminds us in his account of the valuable work on hand cyphers that wartime sigint consisted of much more than Ultra. Roger Austin’s study of surveillance under the Vichy regime shows the continuing importance of older and simpler methods of message interception such as letter-opening. Taken together, the articles establish sigint as an essential field of study for both the modern historian and the political scientist.
Seizing The Enigma
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Author : David Kahn
language : en
Publisher: Frontline Books
Release Date : 2012-02-02
Seizing The Enigma written by David Kahn and has been published by Frontline Books this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-02-02 with History categories.
“An absorbing and thoroughly well documented account” of WWII naval intelligence and the Allied hunt for the Nazi code machine known as the Enigma (Warship). From the start of World War II to mid-1943, British and American naval forces fought a desperate battle against German submarine wolfpacks. And the Allies might have lost the struggle at sea without an astounding intelligence coup. Here, the author brings to life the race to break the German U-boat codes. As the Battle of the Atlantic raged, Hitler’s U-boats reigned. To combat the growing crisis, ingenious amateurs joined the nucleus of dedicated professionals at Bletchley Park to unlock the continually changing German naval codes. Their mission: to read the U-boat messages of Hitler’s cipher device, the Enigma. They first found success with the capture of U-110,—which yielded the Enigma machine itself and a trove of secret documents. Then the weather ship Lauenburg seized near the Arctic ice pack provided code settings for an entire month. Finally, two sailors rescued a German weather cipher that enabled the team at Bletchley to solve the Enigma after a year-long blackout. In “a highly recommended account with a wealth of materials” Seizing the Enigma tells the story of a determined corps of people who helped turn the tide of the war (Naval Historical Foundation).
Battle Of Wits
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Author : Stephen Budiansky
language : en
Publisher: Simon and Schuster
Release Date : 2000
Battle Of Wits written by Stephen Budiansky and has been published by Simon and Schuster this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with World War, 1939-1945 categories.
"This is the story of the Allied codebreakers puzzling through the most difficult codebreaking problems that ever existed.
Code Breaking In The Pacific
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Author : Peter Donovan
language : en
Publisher: Springer
Release Date : 2014-08-14
Code Breaking In The Pacific written by Peter Donovan and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-08-14 with Computers categories.
This book reveals the historical context and the evolution of the technically complex Allied Signals Intelligence (Sigint) activity against Japan from 1920 to 1945. It traces the all-important genesis and development of the cryptanalytic techniques used to break the main Japanese Navy code (JN-25) and the Japanese Army’s Water Transport Code during WWII. This is the first book to describe, explain and analyze the code breaking techniques developed and used to provide this intelligence, thus closing the sole remaining gap in the published accounts of the Pacific War. The authors also explore the organization of cryptographic teams and issues of security, censorship, and leaks. Correcting gaps in previous research, this book illustrates how Sigint remained crucial to Allied planning throughout the war. It helped direct the advance to the Philippines from New Guinea, the sea battles and the submarine onslaught on merchant shipping. Written by well-known authorities on the history of cryptography and mathematics, Code Breaking in the Pacific is designed for cryptologists, mathematicians and researchers working in communications security. Advanced-level students interested in cryptology, the history of the Pacific War, mathematics or the history of computing will also find this book a valuable resource.
Before Enigma
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Author : David Boyle
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2016-01-11
Before Enigma written by David Boyle and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-01-11 with categories.
How did the British codebreakers succeed in cracking the apparently unbreakable Enigma code during the Second World War? Was it their gifted amateurism? The brilliance of Alan Turing? The invention of the very first computers? Or the pioneering work of Polish cryptographers? It was all of the above. But there is one other crucial factor, which is much less well known. The same team had done it before. The truth is that many of those most closely involved in cracking the Enigma code - Alistair Denniston, Frank Birch, Dilly Knox - had wrestled with German naval codes for most of the First World War. By the end of the war they had been successfully cracking a new code every day, from their secret Room 40 at the Old Admiralty Building, in a London blacked out for Zeppelin Raids. The techniques they developed then, the ideas that they came to rely on, the people they came to trust, had been developed the hard way, under intense pressure and absolute secrecy during World War I. Before Enigma tells their story and explains how they managed to crack the supposedly indecipherable code. The book outlines the capture of the Magdeburg and the Hobart, discusses the use of cracked codes to bring German fleets to battle at Dogger Bank and Jutland, and focuses on individuals such as Winston Churchill and Admiral Sir Reginald 'Blinker' Hall and their importance in the development of a British naval code tradition.
Before Bletchley Park
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Author : Paul Gannon
language : en
Publisher: The History Press
Release Date : 2020-10-23
Before Bletchley Park written by Paul Gannon and has been published by The History Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-23 with Biography & Autobiography categories.
The story of Bletchley Park's codebreaking operations in the Second World War is now well known, but its counterparts in the First World War – Room 40 & MI1(b) – remain in the shadows, despite their involvement in and influence on most of the major events of that war. From the First Battle of the Marne, the shelling of Scarborough, the battles of Jutland and the Somme in 1916, to the battles on the Western Front in 1918, the German naval mutiny and the Zimmermann Telegram, this cast of characters – several of them as eccentric as anyone from Bletchley Park in the Second World War – secretly guided the outcome of the 'Great War' from the confines of a few smoke-filled rooms. Using hundreds of intercepted and decrypted German military, naval and diplomatic messages, bestselling author Paul Gannon reveals the fascinating story of British codebreaking operations. By drawing on many newly discovered archival documents that challenge misleading stories about Room 40 & MI1(b), he reveals a sophisticated machine in operation.