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GCHQ was originally established after the First World War as the Government Code and Cypher School (GC&CS) and was known under that name until 1946. During the Second World War it was located at Bletchley Park, where it was responsible for breaking the German Enigma codes.
Within a year of the end of the war, the separate naval and military intelligence organisations had merged to become the Government Code and Cypher School (GC&CS), GCHQ’s original name....
Welcome to GCHQ. We are the UK's intelligence, security and cyber agency. Our mission is to help keep the country safe.
NCSC. information. Alan Turing was a leading cryptanalyst at the Government Code and Cypher School (GC&CS) working at Bletchley during WW2. He is also considered the founding father of...
Oct 23, 2019 · Originally called the Government Code and Cypher School, the unit was formed on 1 November 1919. In the interwar years, the Government Code and Cypher School had the overt function of protecting British Government communications and a secret mission to decrypt messages sent by foreign countries.
Apr 19, 2019 · GCHQ timeline. 1919: Government Code and Cypher School formed as peacetime code-breaking agency based at Watergate House, London. Produces first decrypt on 19 October. 1920s: Successfully reading Soviet Union diplomatic ciphers. 1939-45, Second World War: Moves to Bletchley Park. Work on Enigma machine and Lorenz ciphers. Staff includes Alan ...
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Government Code and Cypher School and Government Communications Headquarters: Records relating to the writing of the history of British signals intelligence in World War II. Search...
