- "Who were the Codebreakers?", Bletchley Park
Alan Turing reported to Bletchley Park, the top-secret home of WWII codebreakers, on September 4, 1939, the day after the UK declared war on Germany assisting in decoding the German military’s Enigma code.
"Bletchley Park", Smithsonian Channel
The German military assumed there wasn’t enough time per day to decode it, but Turing’s breakthrough came from observing U-boat weather report, a pattern to be exploited.
Enigma’s methods used in German Naval communications were cracked in 1941, then again in 1943 even after the Navy had introduced extra components to the system.
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Since it possessed a set of rotors that were constantly scrambled to confuse the Allies, the encryption device had quintillions of possible settings.
Enigma's flaw was the fact that a letter could not become itself. So, developing a gargantuan machine that could quickly sort through the millions of remaining possibilities to the code, Turing created the Bombe.
"During World War II he developed a specification for a machine known as The Bombe, which helped to speed up the breaking of Enigma." "Enigma Machine", C/Net
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