code-breaking 50 Years
The Enigma machine is a
cipher device developed and used in the early- to mid-20th
to protect commercial, diplomatic, and military communication.
It was employed extensively by Nazi Germany during World War II,
in all branches of the German military.
The Germans believed, erroneously, that use of the Enigma
enabled them to communicate securely and thus enjoy a huge
advantage in World War II.
The Polish Cipher Bureau developed techniques to defeat the
plugboard and find all components of the daily key,
which enabled the Cipher Bureau to read German Enigma messages
starting from January 1933.
1939 the Poles initiated French and British military
intelligence representatives into their Enigma-decryption
techniques and equipment.
Bletchley Park (GB) became principal centre of Allied
code-breaking during the Second World War,
using the Bombe
machine and a Colossus computer.
Alan Turing, Gordon Welchman, Hugh Alexander, Bill Tutte,
and Stuart Milner-Barry.