Alastair Denniston by Greenberg Joel;

Author:Greenberg, Joel;
Language: eng
Format: epub
Tags: Second World War
Publisher: Pen & Sword Books
Published: 2017-07-30T04:00:00+00:00

Throughout 1941 BP’s Service Sections continued to expand. There were six separate naval sections four of which covered German, Italian, Spanish and French traffic. Hut 8 dealt with German Naval Enigma and Knox’s section handled Italian Naval Enigma. Japanese naval Sigint had been passed to FECB and the staff had moved to the Japanese Diplomatic Section. Most of the French traffic was being read, but very little of the Italian traffic apart from Italian Naval Enigma, solved by Knox. For German naval work, there was an organisational division between Hut 8, which was tackling the Enigma problem and the German Naval Section, which was dealing with everything else. However, Hut 8 supplied the decrypts and German Naval Section, which became known as Hut 4, provided W/T cover, traffic analysis and relevant intelligence. At this time only two Bombe machines were operational although eighteen had been ordered. According to Birch: ‘The sum total of cryptanalytic success on German naval systems of all grades and kinds cannot be said to have as yet achieved much operational significance.’ Furthermore:

The most significant achievement of German Naval Section in 1940 was the control it had over its own domain. At the beginning of the war, it did no cryptanalysis, because it had no cryptanalysts; no traffic analysis, because ‘operational intelligence’ was the monopoly of 8G; no general intelligence because there was none from Sigint sources. By the end of 1940 it had established a monopoly of all naval Sigint undertaken on German sources at G.C. & C.S. – even the raw products of Hut 8, the only exception, passed directly to it for processing and issue – and was already the champion of the ‘one Service, one Section’ principle as opposed to the interservice and the functional theories, for the proper organisation of G.C. & C.S.

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