Each time that the Germans changed their machinery or encyphering methods, Bletchley Park took some time to get back up to speed. Through time, the British became so well practiced in decyphering German transmissions, that they were able to receive and decode Erwin Rommel's orders before he even received them. They actually knew, weeks ahead of time, of the invasions of Czechloslovakia, Poland, and then France. Decyphering was made much easier (yet still extremely difficult) when the war grew nearer and they intercepted many more transmissions per day. They were greatly assisted by the wiring details provided by the Poles, the keying manuals provided by Schmidt, and even original manuals and machines captured from German U-33 and weather ships München and Lauenburg. But the French still had little success in decyphering transmissions.Īfter the invasion of Poland in September 1939, the brilliant Polish mathmeticians who had copies of the Enigma machines emigrated to England and provided the British with enough information to set up Bletchley Park, where the Enigma was decyphered for the rest of the war.Once the British understood the mechanism of the machine and the encyphering methods, they were able to slowly decrypt German transmissions. He then began providing the bimonthly keying manuals of the German Army. In 1934, Herr Schmidt was even appointed to the top secret crypto unit of the German Army (Forschungsamt) by Göring himself. Also at this time, Hans-Thilo Schmidt, a German playboy and employee of the German Army's Cypher Center (Chiffrierstelle) began selling transmissions to the French to help support his expensive lifestyle. At the time neither France nor Great Britain were interested in it.In the 1930's France began taking a stronger interest. Luckily, some Poles working on the machine were smart enough to realize the potential of the device and built their own copies of it. ![]() The Enigma machine was developed by the Germans for business communications in the 1920's. What is on this page is all I have uncovered so far. I am especially looking for any further information on cyphering/transmission procedures. Last Modified: 24.April.98 *Revision History*Īnyone with any information to add, please email me.
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