Secrecy shrouded the fact that Enigma had been broken. Gordon Welchman, soon to become head of the Army and Air Force section, devised a system whereby his code breakers were supported by a group of Army and RAF officers, based in a neighbouring hut, who turned the de-cyphered messages into intelligence reports. Encouraged by this success, the code breakers managed to crack the "Red" Enigma used by the Luftwaffe liaison officers coordinating air support for army units. The first break in Enigma came on 20th January 1940, when the team working under Dilly Knox, with the mathematicians John Jeffreys and Alan Turing, unravelled the German Army administrative key that became known at Bletchley Park as "The Green". You can see the five surviving huts on your tour of the grounds of Bletchley Park. For security reasons, the various sections were known only by their hut numbers. As more and more people arrived to join the code breaking operations, the various sections began to move into large pre-fabricated wooden huts set up on the lawns of the Park. The Poles decided to inform the British in July 1939 once they were unable to break Enigma any longer. With the advent of war, it changed at least once a day, giving 150 million possible settings to choose from. But when the Poles broke Enigma, the cypher altered only once every few months. The Poles had broken Enigma in 1932, when the encoding machine was undergoing trials with the German Army. But there were also a large number of lower-level German systems to break, not to mention those of Hitler's allies. The most famous of the code and cyphers to be broken at Bletchley Park was the enigma machine cypher.
They were members of the Government Code and Cypher School, a secret team of scholar turned code breakers. They even brought with them one of the best chefs at the Savoy Hotel to cook their food.īut the small group who turned up at Bletchley Park were far from relaxed. They had an air of friends enjoying a relaxed weekend at a friend's country house. The arrival of "Captain Ridley's Shooting Party" at a mansion house in the Buckinghamshire countryside in late August 1938 was to set the scene for one of the most remarkable stories of the Second World War. Image:Code_breaking_at_Bletchley_Park.jpg
0 kommentar(er)
