The Enigma Machine

All YOU need to know!

Did you know this?

Hundreds of code breakers at Bletchley Park worked round the clock to decipher the German Enigma communications they intercepted.

The Allied work on codebreaking played a key role in victories such as D-Day. It shortened the length of WW2.


In 1943, British engineer, Tommy Flowers, created Colossus

Colossus changed the way code breaking was done from electro-mechanical to electronic – it was the first modern day computer.Colossus could read paper tape at 5,000 characters a second.

Bletchley Park and the Enigma Machine

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Other Interesting Facts

In 1931, a German traitor told Rejewski that the Germans routinely changed the daily key indicator setting for the codes.

To find the daily key, Rejewski build 6 replicas of the Enigma machine and connected them.

The new machine could run through more than 17,000 indicator settings. He called this machine, ‘the bomb’.