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Allied forces were able to decrypt many important Enigma messages

Enigma machineThe Enigma machine was most famously used by the Nazis to create encrypted messages during World War II. Allied forces were able to decrypt many important Enigma messages, elevating its significance in the history books.

Submitter's comment:

"The Enigma machine based its cipher capabilities on a series of wired rotor wheels and a plugboard. Through a web of internal wiring, each of the 26 input contacts on the rotor was connected to a different output contact. The wiring connections of one rotor differed from the connections on any other rotor."