
Lorenz
Breaking Hitler's Top Secret Code at Bletchley Park
Jerry Roberts(Autor*in)
The History Press Ltd
Erschienen am 2. März 2017
240 Seiten
978-0-7509-8204-7 (ISBN)
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Beschreibung
The breaking of the Enigma machine is one of the most heroic stories of the Second World War and highlights the crucial work of the codebreakers of Bletchley Park, which prevented Britain's certain defeat in 1941. But there was another German cipher machine, used by Hitler himself to convey messages to his top generals in the field. A machine more complex and secure than Enigma. A machine that could never be broken. For sixty years, no one knew about Lorenz or 'Tunny', or the determined group of men who finally broke the code and thus changed the course of the war. Many of them went to their deaths without anyone knowing of their achievements. Here, for the first time, senior codebreaker Captain Jerry Roberts tells the complete story of this extraordinary feat of intellect and of his struggle to get his wartime colleagues the recognition they deserve. The work carried out at Bletchley Park during the war to partially automate the process of breaking Lorenz, which had previously been done entirely by hand, was groundbreaking and is recognised as having kick-started the modern computer age.
Rezensionen / Stimmen
For sixty years no one knew what Lorenz or 'Tunny' was, or who the men were who broke the code and changed the course of war. Captain Jerry Roberts, a humble man and senior codebreaker at Bletchley during WWII, awarded the MBE in 2013, and his team deciphered Hitler's most secret messages, providing vital information for the operations both before and after D-Day. Their achievement was groundbreaking, unimaginable. Everyone made their contribution, whether big or small, in the breaking of Lorenz, and England counted itself lucky to have such brilliant people in the right place at the right time. Many went to their death not knowing what part they played in winning the war. Lorenz is part of British history and a fascinating read. -- Kerin Freeman, author of <i>The Civilian Bomb Disposing Earl</i>Weitere Details
Sprache
Englisch
Verlagsort
Stroud
Großbritannien
Illustrationen
16 Plates, black and white; 16 Illustrations, black and white
Dateigröße
6,80 MB
ISBN-13
978-0-7509-8204-7 (9780750982047)
Copyright in bibliographic data and cover images is held by Nielsen Book Services Limited or by the publishers or by their respective licensors: all rights reserved.
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Inhalt
- Intro
- Title
- Copyright
- A Selection of Tributes to Captain Jerry Roberts
- Dedication
- Contents
- Foreword by Paddy O'Connell
- Foreword by Mei Roberts
- Introduction
- A Brief Legacy of Bletchley Park
- Preface
- Part One: The Making of a Codebreaker
- 1 Life in North London
- 2 Latymer Upper School
- 3 University College London
- Part Two: Doing My Bit for the War: 1941-45
- 4 Recruited to Bletchley Park as a Cryptographer
- 5 Establishing the Testery in 1941
- 6 Hitler's Top-Secret Code: Lorenz (Tunny)
- 7 How Lorenz was Different from Enigma
- 8 Bill Tutte Breaks the Lorenz System
- 9 The Testery Breaks the Lorenz Code by Hand
- 10 How Hand Breaking Worked
- 11 How the Testery was Assisted by Machines
- 12 From Lorenz Decrypts to the World's First Computer
- 13 Key Decrypts from the Testery and their Impact on the Second World War
- 14 Why is so Little Known About the Testery?
- 15 Three Heroes of Bletchley Park: Turing, Tutte and Flowers
- Part Three: After the War
- 16 The War Crimes Investigations Unit: 1945-47
- 17 Translating a Book from French
- 18 Fifty Years of Market Research: 1948-98
- Part Four: Seeking Recognition for Tutte and the Testery
- 19 My Six-Year Campaign
- 20 A Selection of My Talks
- 21 Meeting Her Majesty Queen Elizabeth II
- 22 BBC Timewatch
- 23 The Turing Centenary Lecture
- 24 Meeting the Queen Again
- 25 Interviewed by Katherine Lynch
- Part Five: My Personal Life and Interests
- 26 Knowing Mei
- 27 My Family and Previous Marriages
- 28 Hobbies and Interests
- Afterword
- List of Testery Personnel
- Useful Websites
- Picture Section
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