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...ring]] at the British [[Government Code and Cypher School]] at [[Bletchley Park]] during [[World War II]].<ref>{{Harvnb|Hodges|1992|pp=230–231}}</ref><ref> ...3|p=161}}</ref> Deriving the message key was called "setting" at Bletchley Park, but it was the derivation of the cam patterns—which was known as "wheel br ...

...ter|Colossus I]] working at [[Dollis Hill]] prior to delivery to Bletchley Park.{{sfn|Flowers|1983|p=245}} * Colossus II working at Bletchley Park. ...

...nt of information that could be deduced by the codebreakers at [[Bletchley Park]] using the [[Banburismus]] procedure, towards determining each day's unkno ...

...the [[Enigma (machine)#decryption|deciphering the Enigma]] at [[Bletchley Park]], about {{cvt|70|km}} northwest of [[London]], since the outbreak of the w ...signal booklet and weather shortcut key, with the help of which Bletchley Park also managed to overcome the Enigma-M4 and Triton.<ref>Stephen Harper: ''Ka ...

...<ref name="Smith2011">{{cite book|author=Michael Smith|title=The Bletchley Park Codebreakers|url=https://books.google.com/books?id=lwKuAwAAQBAJ&pg=PT339|da ...

...latitude of 52°, it was chosen randomly but is roughly that of [[Bletchley Park]], [[The Hague]] or [[Bielefeld]].}} ...

Contrast this with [[Bletchley Park]], the [[United Kingdom|UK]] [[Government Code and Cypher School]] during W .../books.google.com/books?id=DgybAQAACAAJ|date=1 April 1994|publisher=Aegean Park Press|isbn=978-0-89412-233-0}}</ref> (which was restricted (English transla ...