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This is the Purple Cipher

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The purple cipher is the code machine that the Japanese used. Even before the attack on Pearl Harbor, the U.S. had broken the code, but the Germans knew that, so they told the Japanese that we knew their code. By knowing the Japanese codes, America was able to find Yamamoto, a marshal in the Japanese navy and this was crucial to their success. We were able to shoot down his plane. This was a major success for America because Japan was devastated at their loss of a major help to their navy.

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https://docs.google.com/document/d/1nKwvKgALGIAv4CqNISB-iAWdV_bQ_OtOgDJtA1ENzqg/edit

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This is the Lorenz Machine.

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The Lorenz machine was another machine that the Germans would use to send codes to one another. This machine was more advanced than the Enigma and much harder to crack. The Lorenz was first put in use in 1940, and then in 1942 a British man named Bill Tutte broke the system without ever seeing the actual machine itself. Once

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Bletchley Park was Britain's codebreaking establishment. This is where many mathematicians would come to try and crack numerous codes from other countries. It is also where Enigma and the Lorenz machine was cracked.

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This is what the enigma looked liked.

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The U.S had one major code system at the time of the war. This was called, SIGABA. The SIGABA code was never cracked throughout the whole war and was so successful that it wasn’t replaced until almost a decade later. Other than the SIGABA, the U.S. started to use the navajo codes and the black code. The black code was broken by Italian spies in 1941.

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In WWII, code breaking was more important than in any other war. This is due to the new advances in radio technology, it makes it so the enemy could easily intercept any messages that Germany or Japan was transporting via radio.

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During WWII, the allies were able to break many German and Japanese codes. This was essential to the victory of the Allies, because the German and Japanese codes would hold information about when and where they are going to bomb, attack or anything else they were planning to do. The codes held Japan and Germany’s, “Game plan” for the war. Once the Allies had broken a code, they could plan ahead and prevent an attack from happening or be more prepared for it. This saved many people's lives.

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How did code breaking assist the allies in victory during World War 2?

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During WWII, the Germans created a machine called Enigma. The Germans thought that this code machine was “unbreakable”. The Britains got to work on trying to figure out how to crack Enigma, but the hardest part was that every 24 hours, the code would reset. This means that every 24 hours the Germans would change the settings on it, so it would have a different code. veryday, they would have to completely restart their research and efforts to crack it. Alan Turing had the idea to invent a machine that could take a coded message and uncode it within the span of one day. Alan and his team had been working for about five and a half months, until they created the machine that could uncode messages efficiently enough to be able to know exactly where, when and how the Germans were planning to attack. This was a major victory for Britain and the Allies and would help them defeat Germany.