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 truth". The bottom of the sleeve features "blues is truth" written in numeric code. Similarly, the album credits also contains a red letter code that spells out "blues is truth" in anagram format. With a two-year wait for its release, "Cracking The Code" was highly anticipated. Upon its release on 15 September 2013, Classic Rock magazine declared the album "well worth the wait… a killer third album." Critical praise for "Cracking The Code" was consistent, with most leading press outlets agreeing that Petit's third studio album was a showcase for his "formidable"ongwriting skills and his "fiendish guitar chops" s. Blues