A cipher machine is a mechanical device for encoding and decoding messages.

Turing did not work on the Enigma, it was a German machine.

However he did do some work on the British Bombe machines that were used to crack the Enigma machine cipher.

Later he saw Tommy Flowers' Colossus electronic computer, designed to crack the German Lorenz SZ40/42 machine cipher. This inspired him after the end of the war to begin work on programmable electronic computers.

Turing did not work on the Enigma, it was a German machine.

However he did do some work on the British Bombe machines that were used to crack the Enigma machine cipher.

Later he saw Tommy Flowers' Colossus electronic computer, designed to crack the German Lorenz SZ40/42 machine cipher. This inspired him after the end of the war to begin work on programmable electronic computers.

Having the enemy's cipher machine made interception and interpretation much easier.

airplane, cipher machine, adding and multiplying cal.