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Machine Invented
1915, two Dutch Naval officers invented a machine to encrypt messages. This became known as the Enigma machine. -
Patended the Enigma Machine
1918, Arthur Scherbius, a German businessman, patented the Enigma machine. -
Machines being sold to the German Military
Mid 1920s, mass production of Enigma machine with 30,000 machines being sold to the German military over the next 2 decades. -
The poles set up the world
The Poles set up a world leading crypt analysis bureau and hired leading mathematicians such as Marian Rejewski. -
Marian Rejeweski bulit his own model
Marian Rejewski built his own model of the Enigma machine without having actually seen it. -
A German traitor
In 1931, a German traitor told Rejewski that the Germans routinely changed the daily key indicator setting for the codes. -
Rejewski build 6 replicas
To find the daily key, Rejewski build 6 replicas of the Enigma machine and connected them. -
He called the machine, 'the bomb'
The new machine could run through more than 17,000 indicator settings. He called this machine, ‘the bomb’. -
The bomb was used secretly
The bomb was used to secretly read the traffic from the German Enigma machines for several years. -
In 1938 Germans added two new roters
In 1938 Germans added two new roters into the Enigma machine. This made it harder for the Poles to read the traffic
