In June 1941 British mathematician Alan M. Turing and his group at Bletchley finally succeeded in breaking into the daily communications of the U-boats. Every day the German military transmitted thousands of coded messages, ranging from orders signed by Adolf Hitler and detailed situation reports prepared by generals at the front line down through weather reports and supply ship inventories. But, important as Turing’s contribution was, he was but one of a larger group of codebreakers who were themselves but a tiny minority of what was an enormous and highly complex organisation. As a cipher clerk typed a message on the keyboard in plain German, letters were illuminated one by one on the lamp board. Corrections? Great care was always exercised to conceal the fact that Bletchley had deciphered these messages. It was this ever-changing pattern of connections that made Enigma extremely hard to break. Experts have suggested that the Bletchley Park code breakers may have shortened the war by as much as two years. Did Turkey fight on the side of Germany in World War II? What Was Alan Turing’s Relationship with Christopher Morcom? https://www.britannica.com/topic/Ultra-Allied-intelligence-project, Warfare History Network - British Military Intelligence: The ULTRA Project, HistoryNet - World War II: Ultra — The Misunderstood Allied Secret Weapon, Ultra - Student Encyclopedia (Ages 11 and up). Today, Turing may best be known for his work at Bletchley Park during World War II, and his part in breaking the German Enigma code. Alan Turing was a British scientist and a pioneer in computer science. Unlike Rejewski’s method, the more powerful crib-based method invented by Turing survived the May 1940 change. This is a list of people associated with Bletchley Park, the principal centre of Allied code-breaking during the Second World War, notable either for their achievements there or elsewhere.Work at or for Bletchley Park is given first, followed by achievements elsewhere in parentheses. However, he was not prepared to live a lie nor hurt Clarke in later months/years. You can tell us about this by contacting us. Alan Turing was a mathematician, cryptographer, and a pioneer of computer science. During World War II, he developed a machine that helped break the German Enigma code. Let us know if you have suggestions to improve this article (requires login). He also laid the groundwork for modern computing and theorized about artificial intelligence. Please try searching instead. Instead, analysts there sifted the decrypts and prepared intelligence reports that carefully concealed the true source of the information. Thus, typing the same letter at the keyboard, such as AAAA..., would produce a stream of changing letters at the lamp board, such as WMEV…. By Alan Turing. Articles from Britannica Encyclopedias for elementary and high school students. Omissions? Already have an account with us? Bletchley Park was where Alan Turing and other agents of the Ultra intelligence project decoded the enemy’s secret messages, most notably those that had been encrypted with the German Enigma and Tunny cipher machines. But while Bletchley Park hero Alan Turing - who was punished by a post-war society where homosexuality was illegal and died at 41 - has been treated more kindly by … During the Second World War, Turing worked for the Government Code and Cypher School (GC&CS) at Bletchley Park, Britain's codebreaking centre that produced Ultra … U-boats were sinking such a large number of merchant ships taking food, munitions, and oil to Britain from North America that by 1941 some analysts were predicting that the sinkings would tip Britain into starvation within a few months. “The Imitation Game jumps around three time periods – Turing’s schooldays in 1928, his cryptographic work at Bletchley Park from 1939-45, and his arrest for gross indecency in … Sign in to manage your newsletter preferences. Get your gears turning with hundreds of puzzles, with new ones added each week - and enjoy a seven day free trial! (The Poles too had had little success against naval Enigma.) Sort fact from fiction in this World War II quiz. Our editors will review what you’ve submitted and determine whether to revise the article. Detail of rotating (top) drums on a rebuilt Bombe machine, a code-breaking machine, originally developed by Alan Turing and others, used during World War II; in the National Museum of Computing, Bletchley Park, Milton Keynes, Buckinghamshire, England. Incredibly rare World War II footage of British spy staff shot at a site connected to the famous codebreaking facility Bletchley Park has been discovered and published online. According to some experts, Ultra may have hastened Germany’s defeat by as much as two years. Bletchley Park’s history is retold by Dermot Turing, the nephew of Bletchley’s most famous alumnus Alan Turing. General Information Alan Turing is one of the most well-known codebreakers to have worked at Bletchley Park, partly due to the Oscar nominated film, The Imitation Game. What Did Alan Do during the Second World War? 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