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The Early Slavs: Culture and Society in Early Medieval Eastern Europeby P. M. Barford


The Real Story of How ENIGMA Was Broken
by Dermot Turing

It is said that the Enigma cipher was broken at Bletchley Park, but is that accurate?

At the heart of the story is the decisive role of Polish mathematicians and French spymasters who helped Britain’s codebreakers change the course of the Second World War. X, Y & Z is the real story of how Enigma was broken.
Product details
ASIN ‏ : ‎ B07P2DZ8MB
Publisher ‏ : ‎ The History Press (September 3, 2018)
Publication date ‏ : ‎ September 3, 2018
Language ‏ : ‎ English
File size ‏ : ‎ 20919 KB
Text-to-Speech ‏ : ‎ Enabled
Enhanced typesetting ‏ : ‎ Enabled
X-Ray ‏ : ‎ Enabled
Word Wise ‏ : ‎ Enabled
Print length ‏ : ‎ 356 pages
Lending ‏ : ‎ Enabled
Best Sellers Rank: #47,781 in Kindle Store (See Top 100 in Kindle Store)
#24 in Intelligence & Espionage (Kindle Store)
#58 in Biographies of World War II
#81 in European Politics Books​

The Enigma Code
     The grumpy Knox and his two companions checked into the best hotel in Warsaw's old town, The Bristol. At 7 a.m. on Wednesday 26 July 1939, a car came to collect them and whisked them off, past the Belvedere Palace, through the suburbs, out to the woods to the south of the city. They were being taken to Polish intelligence's most secret installation, the number one radio intelligence site, the Pyry bunker.
     Within the bunker, there was to be no stepping around the subject, as had occurred in Paris with the courtly dance of secrecy. Here they got straight down to it., albeit with a certain amount of characteristic Polish military formality which irritated the British Delegation (Denniston's description is of 'pompous declarations' at a 'full dress conference'). Ciężki dropped the bombshell almost at once. The Poles had cracked Enigma. Years ago. They knew the wiring of the rotors. There were able to find the settings used by the Germans to set up the machine so that the cipher changed every day. They had done the reverse-engineering by pure mathematics and they were using machinery to discover the rotors in use and the daily settings. Here were the men who had done it and here were the machines. 
- pp. 120-121, X,Y&Z
The Real Story of How ENIGMA Was Broken
by Dermot Turing