"And Bletchley became a station to decode German and Japanese messages..."

Something about Bletchey Park and Enigma history ...
http://www.dailymail.co.uk/news/arti...MPs-claim.html

" (...)To many, the name Bletchley Park is synonymous with code-breaking glory by the British during World War Two.After all, it was there that Englishman Alan Turing and his team of mathematicians cracked the ciphers of the Nazis' Enigma machine - a feat credited with shortening the war by two years. But now, the Polish Government has launched a campaign to highlight the important - and overlooked - role played by its nation in solving the Enigma code.

In 1932, a group of cryptologists from the Polish Cipher Bureau - Marian Rejewski, Jerzy Rozycki and Henryk Zygalski - discovered three ways of deciphering Enigma readings.Seven years later, just before war broke out, the Poles handed over their knowledge of the Enigma codes, as well as Polish-built replicas of the machines, to British and French Intelligence officers near Warsaw.

(...) The film Enigma (made in 2001), starring Kate Winslet and set at Bletchley, has also upset the Poles - it not only downplays their contribution but also, the only Pole in the film is a traitor....(...) "


The Enigma History
http://enigma.umww.pl/index.php?page=history

" The Enigma = puzzle. A human can’t even image it.
“Enigma” – comes from Greek “ainigma” – “puzzle”. This is how the German engineer Arthur Scherbius called an electro-mechanical cipher machine constructed by himself and produced by him since 1918 in a factory Scherbius & Ritter which was set up together with Richard Ritter. The machine which was initially exploited for commercial purposes over time was put into use in state institutions of many countries. The 1st World War proved that traditional, manual cipher methods became impractical. In contrast to a human who makes mistakes, the machine guaranteed speed, infallibility and security of encrypting and reading out of messages. Therefore, the Enigma was also applied by the Reichswehr and later, during the 2nd World War, was exploited by Wehrmacht. Scherbius’s machine which could generate the unimaginable number of combinations surpassed everything that cryptologists had met with by then.
(...)
As a matter of fact, instead of saying that the “Enigma was cracked” it should be said that the “Enigma was being cracked”. The Germans were introducing further changes to improve construction of the machine and methods of its exploitation, therefore works on methods of quick breaking of keys to ciphers were being carried out on a continuous basis. In 1935 the Polish mathematicians were the first to set a machine supporting decryption, called a cyclometer, against the cipher machine. Additionally, in 1938 the so-called “Rejewski bomb” was built and the so-called “Zygalski sheets” i.e. sheets of paper with holes in places where the Enigma’s cipher showed a specific property were another invention. After superimposing several sheets, they could find a valid, on a particular day, key to a cipher. Simultaneously with works of the Polish cryptologists there was a race of military theoreticians to work out rules under which the war was supposed to develop.
(....)
Over time it turned out that the Polish mathematicians were waging a lone war with the Enigma’s ciphers. In January 1939 in Paris a British-French-Polish meeting of cryptologists was held. A commander of the Polish Cipher Bureau, Colonel Gwido Langer, together with the second-in-command Ciężki went to France with instructions on revealing the success only if the partners had proved to be similarly advanced in attack on the Enigma. Since the British and the French knew nearly nothing about the machine, the Polish officers kept silent encountering a disrespectful attitude from the main cryptologist of the British government agency – Dillwyn Knox. When the war was closer, Langer and Ciężki obtained consent of the Polish Armed Forces commanders to disclose the revelation to the Allies. A meeting in July in a secret centre of radio intelligence in Pyry near Warsaw abounded in emotions. The French showed grievance and the British ostentatious indifference. However, Rejewski with colleagues kept presence of mind systematically demonstrating mathematical foundations, rules on reconstruction of machines and cracking of keys as well as details on a structure of the decryption devices built by them. Finally, before the observers’ eyes they deciphered a new-received message. The two delegations were granted a copy of the machine and a full set of documentation on methods of decryption.
(...)
After an escape from the invaded country, a majority of the Polish team of cryptologists went to France where on 17 January 1940 for the first time during the war the Polish mathematicians cracked the Enigma’s cipher. However, a burden of the events connected with the Enigma gradually moved to the Great Britain, to the cryptology centre in the Bletchley Park. The authors of the breakthrough were sidetracked. In 1943 some members of the team of the Cipher Bureau were captured by the Germans after being betrayed by the French. They experienced tragedy of the prisoner of war camps and concentration camps. However, even under such circumstances they kept for the Allies the secret of breaking the Enigma’s ciphers.
(...)
Meanwhile, since autumn in 1939 the information delivered directly before the war by the Polish mathematicians was being put into practice in the Great Britain. Finally, the British noticed the sense in recruitment of mathematicians. On 4 September 1939 a gate of the centre in the Bletchley Park was crossed by Alan Turing and the “bomb” built by him became the main tool for breaking the Enigma. The Polish mathematicians who shared their secret without any preconditions became needless and although the importance of the Polish mathematicians’ contribution was after several years beautifully recognised by Professor John Irving Good who regarded one of the theorems formulated by Rejewski during a pioneering attack on the Enigma’s cipher as the “theorem which won the 2nd World War”, Rejewski and Zygalski learnt about activities of the centre in the Bletchley Park not earlier than thirty years after the war. In May 1945 after being freed from captivity and arriving in London, also Langer and Ciężki were given the cold shoulder. They died embittered, poor and lonely. (...) "

Enigma 3D project instructions
http://www.youtube.com/watch?v=VqP5H...layer_embedded

Enigma 3D project dowload /written in Blender 3D/
http://enigma3d.pl/4,download

Enigma 3D project instructions in pdf /Polish version/
http://enigma3d.pl/files/pdfy/dokume...techniczna.pdf