Action This Day

by Erskine, Ralph; Smith, Michael

• ISBN13: 9780593049822
• ISBN10: 0593049829
• Format: Paperback
• Copyright: 2002-11-01
• Publisher: TRAFALGAR SQUARE

Author Biography

<b>Michael Smith</b> is a former member of the Intelligence Corps. He now writes on espionage for the <i>Daily Telegraph</i>. <b>Ralph Erskine</b> is one of Britain’s leading historians of wartime codebreaking.

Table of Contents

Acknowledgements	viii
Letter from Cryptanalysts in Hut 6 and Hut 8, Bletchley Park, to the Prime Minister, 21 October 1941	ix
Dramatis Personae	xiv
Bletchley Park in Pre-War Perspective	1	(14)
Christopher Andrew
The Government Code and Cypher School and the First Cold War	15	(26)
Michael Smith
Reminiscences on the Enigma	41	(6)
Hugh Foss
Breaking Air Force and Army Enigma	47	(30)
Ralph Erskine
Hut 6 From the Inside	77	(17)
Derek Taunt
Breaking Italian Naval Enigma	94	(16)
Mavis Batey
A Biographical Fragment: 1942--5	110	(17)
John Chadwick
An Undervalued Effort: How the British Broke Japan's Codes	127	(25)
Michael Smith
Most Helpful and Co-operative: GC&CS and the Development of American Diplomatic Cryptanalysis, 1941--2	152	(22)
David Alvarez
Breaking German Naval Enigma on Both Sides of the Atlantic	174	(23)
Ralph Erskine
Hut 8 from the Inside	197	(14)
Rolf Noskwith
Bletchley Park and the Birth of the Very Special Relationship	211	(26)
Stephen Budiansky
Mihailovic or Tito? How the Codebreakers Helped Churchill Choose	237	(27)
John Cripps
Traffic Analysis: A Log-reader's Tale	264	(14)
James W. Thirsk
Bletchley Park, Double Cross and D-Day	278	(23)
Michael Smith
How Dilly Knox and his Girls Broke the Abwehr Enigma	301	(16)
Keith Batey
Breaking Tunny and the Birth of Colossus	317	(25)
Shaun Wylie
Colossus and the Dawning of the Computer Age	342	(28)
B. Jack Copeland
Enigma's Security: What the Germans Really Knew	370	(16)
Ralph Erskine
From Amateurs to Professionals: GC&CS and Institution-Building in Sigint	386	(17)
Philip H. J. Davies
Cold War Codebreaking and Beyond: The Legacy of Bletchley Park	403	(28)
Richard J. Aldrich
Bletchley Park in Post-War Perspective	431	(10)
Christopher Andrew
Appendix I The very simple cipher which `Snow', the first Double Cross agent, was given by his German controllers	441	(3)
Appendix II Wehrmacht Enigma Indicating Systems, except the Kriegsmarine's Kenngruppenbuch System	444	(5)
Appendix III The Naval Enigma Kenngruppenbuch Indicator System - used with the main wartime ciphers	449	(4)
Appendix IV Cillies	453	(5)
Notes and References	458	(63)
Glossary and Abbreviations	521	(8)
Notes on Contributors	529	(4)
Index	533