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
The Bourne Enigma Karpov's riddle—and hunt down Borz—if he hopes to prevent a cataclysmic international war... The Real Book Spy commented, "Van Lustbader knows just how to keep fans on the edges of their seats as he lays out the story’s plot, sucking them in and setting up for a climactic ending that doesn’t disappoint." Ray Palen of The Book Reporter stated that, "The Bourne Enigma is a rollicking roller coaster ride of spy games and colorful characters set against the expected multiple international locales...This is an enjoyable and fast-paced read that faithfully continues the enigma that is Jason Bourne." The Bourne Enigma