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
Technology during World War II also developing an atomic Bomb, however, it floundered due to lack of resources despite gaining interest from the government. The collaboration between the British and the Americans led to the 1958 US-UK Mutual Defence Agreement between the two nations, whereby American nuclear weapons technology was adapted for British use. Electronics rose to prominence quickly in World War II. The British developed and progressed electronic computers which were primarily used for breaking the “Enigma” codes, which were Nazi secret codes. These codes for radio messages were indecipherable to the Allies. However, the meticulous work of code breakers based at Britain’s Bletchley