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.
Online enigma simulator simulator#
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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