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Books > Social sciences > Warfare & defence > Defence strategy, planning & research > Military intelligence
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Codebreaking and Signals Intelligence (Paperback)
Loot Price: R893
Discovery Miles 8 930
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Codebreaking and Signals Intelligence (Paperback)
Series: Routledge Library Editions: International Security Studies
Expected to ship within 12 - 17 working days
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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.
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