Lorenz

Title:                      Lorenz

Author:                 Jerry Roberts

Roberts, Jerry (2017). Lorenz: Breaking Hitler’s Top Secret Code at Bletchley Park. The History Press: The Mill, Brimscombe Port, Stroud, Gloucestershire, UK

OCLC:    969660477

D810

Contents:

  • Title; Copyright; A Selection of Tributes to Captain Jerry Roberts; Dedication; Contents; Foreword by Paddy O’Connell; Foreword by Mei Roberts; Preface; A Brief Legacy of Bletchley Park; Introduction; 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 Hand10 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 Talks21 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.

Subjects:

Date Posted:      May 2, 2017

Reviewed in The Intelligencer[1]

The breaking of the Enigma machine is one of the most heroic stories of WWII, and highlights the crucial work of the Bletchley Park codebreakers which shortened the war by several years[2]. But there was another code machine used by Hitler himself to convey messages to his top commanders in the field. More complex and secure than Enigma, the Germans thought it could never be broken. For 60 years no one knew about Lorenz or “Tunny,” or the courageous group of men who finally broke the code. Codebreaker Jerry Roberts tells how these forgotten heroes of Bletchley broke Hitler’s top secret code, and how he finally got the codebreakers the recognition they deserve.

[1] Reviewed in The Intelligencer: Journal of U.S. Intelligence Studies (22, 3, Winter 2016-17, p. 136).

[2] If all the activities and accomplishments claimed to have “shortened the war by several years” were all added up World War II would have ended sometime about 1905 (FL Wilson)

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