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X, Y & Z: The Real Story of How Enigma Was Broken is a 2018 book by Dermot Turing about the Enigma machine, which was used by Nazi Germany in World War II, and about the French, British, and Polish teams that worked on decrypting messages transmitted using the Enigma cipher.
The Enigma machine is a cipher device developed and used in the early- to mid-20th century 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 Enigma machine was considered so secure that it was used to encipher the most top ...
The Enigma machines were a family of portable cipher machines with rotor scramblers. [1] Good operating procedures, properly enforced, would have made the plugboard Enigma machine unbreakable to the Allies at that time. [2] [3] [4] The German plugboard-equipped Enigma became the principal crypto-system of the German Reich and later of other ...
The German Navy 4-rotor Enigma machine (M4) which was introduced for U-boat traffic on 1 February 1942. The introduction of the fourth rotor was anticipated because captured material dated January 1941 had made reference to the development of a fourth rotor wheel; [ 2 ] indeed, the wiring of the new fourth rotor had already been worked out.
The Enigma-M4 key machine Key manual of the Kriegsmarine "Der Schlüssel M". The Enigma-M4 (also called Schlüssel M , more precisely Schlüssel M Form M4 ) is a rotor key machine that was used for encrypted communication by the German Kriegsmarine during World War II from October 1941.
The Enigma machine became available commercially in the 1920s. In Vienna in 1925, [ 20 ] Knox bought the Enigma 'C' machine evaluated by Hugh Foss in 1927 on behalf of GC&CS. Foss found "a high degree of security" but wrote a secret paper describing how to attack the machine if cribs – short sections of plain text – could be guessed. [ 3 ]
The machine was developed by British mathematician Alan Turing, and it was used to decode messages sent by the Nazi military. Bought for $115, a WWII Enigma machine sells for $51,000 Skip to main ...
The Enigma machine looked like a typewriter in a wooden box. He called his machine Enigma which is the Greek word for "riddle". Combining three rotors from a set of five, each of the 3 rotor setting with 26 positions, and the plug board with ten pairs of letters connected, the military Enigma has 158,962,555,217,826,360,000 (nearly 159 ...