The Enigma Machine
Enigma history by David Kahn, an American cryptologist.
Enigma History by David Kahn
An animation about the cipher mechanism and how it was stepped by the keyboard manually.
How Enigma Works
Enigma's operation principle.
Press "Q" and get "U". Send "U" to the other part. Press "U" get "Q" again (but you have to know the setup).
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