The Lorenz SZ40, SZ42a and SZ42b were German rotor stream cipher machines used by the German Army during World War II. They were developed by C. Lorenz AG in Berlin. The model name SZ is derived from Schlüssel-Zusatz, meaning cipher attachment.
The Lorenz SZ40, SZ42a and SZ42b were German rotor stream cipher machines used by the German Army during World War II. They were developed by C. Lorenz AG in Berlin. The model name SZ is derived from Schlüssel-Zusatz, meaning cipher attachment.
Source: Wikipedia "Lorenz cipher" · CC BY-SA 4.0
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