Enigma Machine

The Enigma Machine was used by the Germans during WWI to encrypt messages electrically.  It looks  a lot like a typewriter.  On the front, there is a plugboard where you can plug in different wires into different letters.  The Germans would switch up these letters everyday.  This is where a lot of randomness can play into the encryption.  There are also 3 rotors, which you can change to any number from 1 to 26.  Each day, the rotors are set to a different code and the wires in the plugboard are also changed daily.  When you type a letter, the different coded letter will light up on the machine.  Each time you type a letter, the rotor changes one position.  There are many different places where the operator can change the settings.  This makes the encryption code very chaotic and difficult to break.

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