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World War II: The German Enigma Machine

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World War II was a major turning point in political, social, and militaristic history. One of the most important technological innovations was the German Enigma machine. The Germans had created unbreakable Enigma code. They created an Enigma machine which encrypted Morse code transmission message. The radio operators would need a key to put in the Enigma machine to decode the encrypted message. The Enigma machine worked by allowing the operator to type in a message, then scramble it by using three to five notched wheels/rotors, which displayed different letters of the alphabet (BBC). The reason why the Germans said it was unbreakable Enigma code because there were astronomical amount of permutations and combinations where the letters and numbers …show more content…

In the film, Alan Turing named the code breaking machine “Christopher”, which was Turing’s first love who died from bovine tuberculosis. It depicted that Alan Turing was obsessed with the idea of using a computer to engineer a human brain or artificial intelligence to resurrect Christopher. In reality, the code breaking machine was called the Bombe or known as the “Victory.” Also, Alan Turing did not design the Bombe by himself, but it was partly designed by the Polish cryptanalyst Marian Rejewski. Alan Turing designed a new machine with a different strategy that was contributed by a mathematician, Gordon Welchman. Another historical inaccuracies in the film, the Bombe was suggested to be effective when the “deciphering could be made easier by looking for speculated items contained in an intercepted message (WIKI)”, a cryptanalysis practice known as the known-plaintext attack (KPA/ crib). In reality, the use of cribs was the main model of the Bombe’s principal design, rather than being an afterthought to the design. Another false history of The Imitation Game, after Hut 8 decoded the messages, they held off on telling their superiors because they were afraid that the Germans will became suspicious and change the code. In the meantime, Alan Turing and Stewart Menzies came up a system to decide which cracked messages should be passed along to the British. In

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