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
Cracking The Code the calibre of the music." After watching a documentary about Paul Simon's Graceland, in which Simon discusses his struggle to finish the album, Petit found the inspiration needed to complete the lyrics for "Cracking The Code": "What unpicked it for me was watching one of those Classic Album documentaries on TV about Graceland with Paul Simon going through the same thing: coming back from South Africa with some tracks that were half completed and not many lyrics. He even contemplated putting Graceland out as an instrumental album because he thought he might ruin it. And I thought "if someone of