Put all of the rotors into the spare rotors box. Remove each rotor from the cradle and place it in its corresponding Roman Numeral space in the spare rotors box.Īdjusting the Ring Setting (Ringstellung) NOTE: The arrow in this picture should be pointing to the space for Roman Numeral V, not the space for Roman Numeral IV. Notice that it has a Roman Numeral V stamped on the end.Ĭlick on the corresponding Roman Numeral V in its empty place in the spare rotors box. Rotor number 3 (counting from left to right) has been removed from the cradle and turned so that you can see part of it end-on. To change one or more rotors, click on a rotor in the rotor cradle to lift it out of the Enigma machine. Choose the Wehrmacht UKW=B 3-rotor model. You can choose between the different Enigma models by left-or right clicking the letter on the reflector. Selecting the Reflector (Umkehrwalze or UKW) Rotor box, containing the unused spare rotors, at the bottom. Interior of the machine will become visible, showing the rotor cradle compartment at the top of the machine and a Ĭlick the power switch (Wehrmacht) or one of the locks (Kriegsmarine M3/M4) to open the Enigma.
Two rotor enigma simulator simulator#
To open the Enigma simulator menu, move the mouse over the little square in the top right corner of the machine. You will notice that the mouse pointer changes into a little hand when you move over places where you can select or click something. To set the key, we must select the proper reflector, the rotors and their order, adjust the ring setting of the rotors, insert plugs on the plugboard and set the machine in its start position.
To prepare the Enigma Simulator for use, we need to adjust the internal settings (the so-called "key") as agreed between the sender and recipient. To open-up the Enigma Simulator program, click on the "Start" button, "All Programs," and "Enigma icon." When the program opens, a message will appear concerning default settings. Refer to the U571 December 1944 codesheet that you previously downloaded and printed. Print a copy of the instructions listed below to use as a guide while you set-up your Enigma Simulator key settings. The operator could only select the rotor starting position. After setup, he could lock the machine front panel with a key. In general, the codesheets were in the custody of an officer who was responsible for setting up the machine rotors and ringsettings. The codesheets were distributed beforehand, and contained the basic settings for a whole month, by day. Kenngruppen: Letter groups to identify the day of the month to the receiver at the beginning of a message Steckerverbindungen: The plug connections on the plugboard
Ringstellung: The setting of the alphabet rings For reasons of security, different parts of the armed forces had their own network, with different codesheets and with a network having its own codename.Įach codesheet contained the following key settings: These settings were distributed on the codesheets. For a message to be correctly encrypted and decrypted, both the sender and receiver needed to set up their Enigma machines in exactly the same way. To obtain secure communications, the German Wehrmacht (Army) and Luftwaffe (Air Force) used standard procedures to transmit and receive messages.
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