![]() First the Polish and then the British created bombes – as big as trucks metal racks, filled with buzzing rotors, where the passwords were tested. The Polish applied a different strategy - they hired young, smart mathematicians, who came up with the idea of building automatons that mimicked the letter substitutions and tried all the possible variants of the password. ![]() Decoding the messages proved so difficult that the French intelligence gave the Polish a few captured machines for free - they didn't believe they could be used by any linguists to crack the code. In the 1930s, some European countries had captured Enigma machines and were actively listening to German broadcasts with encoded messages, but they couldn't decode them. The algorithm that organized the substitutions was so good that even if the enemy had captured both the machine and the encrypted message, they wouldn't be able to decode it without the password. The idea behind the code was to have the original message and a password and to use these in combination to perform some very complex letter substitutions. for a long time it was considered impossible. How hard was it to break the Enigma code in the 1940s? They were portable, looked like typewriters, and since they encoded messages' letters with an ever-changing polyalphabetic cipher, they were considered hack-proof and used as the primary communication system, transmitting orders and reports. The Enigma machines were electro-mechanical rotor cipher machines used by Germany and its allies during World War II.
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