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 layers of guitar tracks, Petit's aim with Cracking The Code was different, he explained: "I wanted to reach a place where there is one guitar that is massive and huge… I didn’t want the distortion to be tidy; I wanted it to be ragged". Upon returning to London, Petit experienced a "mental blockage" which left him temporarily unable to finish some of the songs for Cracking The Code: "Some of the songs were finished, some of the songs had the hook without the verse, and some had no lyrics at all. I wanted to make sure that the lyrics matched