Cryptanalysis of the Enigma Bletchley Park to describe the network that used the same Enigma setting sheets. Initially these were recorded using coloured pencils and were given the names "red", "light blue" etc., and later the names of birds such as "kestrel". During World War II the settings for most networks lasted for 24 hours, although towards the end of the war, some were changed more frequently. The sheets had columns specifying, for each day of the month, the rotors to be used and their positions, the ring positions and the plugboard connections. For security, the dates were in reverse chronological order down the
Breaking the Code (film) Breaking the Code (film) Breaking the Code is a 1996 BBC television movie directed by Herbert Wise, based on the 1986 play by Hugh Whitemore about British mathematician Alan Turing, the play thematically links Turing's cryptographic activities with his attempts to grapple with his homosexuality. The story focuses on the life of the English mathematician Alan Turing, who helped decode the Enigma code, used by the Germans to send secret orders to their U-boats in World War II. He also was one of the key contributors to the development of the digital computer. Turing was also a homosexual in Britain