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Arthur Scherbius offered Enigma Machine to the German Navy.
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The Enigma machine began to be used by the german Navy which started to develope keys for their codes.
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Enciphered radio signals were detected by the Poles. Although they attempted to crack these codes, they were unsuccessful
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The Germans modified the version of their Enigma Machine to include a plugboard and introduced them to the german army.
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Late 1932 Polish Cryptanalyst Marian Rejewski recovers the entire machine wiring by mathematical analysis using a group of intercepts and machine settings for two months, September and October 1932, supplied by the French.
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A radio comunication network began to be used in the Air Force to help with the war effort.
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The number of possible pairs of letters going through the Enigma machine was increased.
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The British moved all sections of intelligence to Bletchley Park.
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A new version of the Enigma machine that had 4 rotors instead of 3 was now used exclusivly for the U- baots. This caused more dificulty for the Ally codebreakers.
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The Germans changed the method of sending signals through the machine which caused problems in Bletchley.