Lorenz SZ40/42

The Lorenz SZ40/42 was a German cipher machine used during World War II to encrypt military communications. It functioned by combining multiple rotating wheels (rotors) to scramble messages into complex codes, making them difficult for enemies to decipher. Its design allowed for a high level of security, similar to early electronic encryption devices, but with mechanical parts. The SZ40/42 played a crucial role in maintaining secure communication for the German armed forces, and its intercepted messages contributed to Allied efforts during the war.