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- On this site during the 1939-45 World War, 12,000 men and women broke the German Lorenz and Enigma ciphers, as well as Japanese and Italian codes and ciphers.
ethw.org/Milestones:Code-breaking_at_Bletchley_Park_during_World_War_II,_1939-1945Code-Breaking at Bletchley Park during World War II, 1939-1945
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Brigadier John Tiltman, one of the top codebreakers in Bletchley Park, took a particular interest in these enciphered teleprinter messages. They were given the code name "Fish". The messages which (as was later found out) were enciphered using the Lorenz machine, were known as "Tunny".
- Colossus
Colossus design started in March 1943. By December 1943 all...
- Colossus
A standard teleprinter, however would produce the text of the message. The Lorenz cipher attachment changed the plaintext of the message into ciphertext that was uninterpretable to those without an identical machine identically set up. This was the challenge faced by the Bletchley Park codebreakers.
In July 1942, Turing developed a complex code-breaking technique he named ‘Turingery’. This method fed into work by others at Bletchley in understanding the ‘Lorenz’ cipher machine. Lorenz enciphered German strategic messages of high importance: the ability of Bletchley to read these contributed greatly to the Allied war effort.
During World War II, Germany believed that its secret codes for radio messages were indecipherable to the Allies. However, the meticulous work of code breakers based at Britain's Bletchley Park cracked the secrets of German wartime communication, and played a crucial role in the final defeat of Germany. The Enigma story began in the 1920s, when ...
Bletchley Park, Milton Keynes, UK - Dedication: 1 April 2003 - IEEE United Kingdom and Ireland Section. On this site during the 1939-45 World War, 12,000 men and women broke the German Lorenz and Enigma ciphers, as well as Japanese and Italian codes and ciphers.
Lorenz, the most top secret cipher, was broken and a large proportion of its messages were deciphered by senior codebreaker Captain Jerry Roberts and his team in the Testery. Here he describes the differences and similarities between the two machines, and what it was like to work on cracking Hitler’s codes.
Here, in 2006, Sale supervises the breaking of an enciphered message with the completed machine. The most important machine was the Colossus of which ten were in use by the war's end, the first becoming operational in December 1943.
