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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 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.
t. e. The Enigma machine was used commercially from the early 1920s and was adopted by the militaries and governments of various countries—most famously, Nazi Germany. Cryptanalysis of the Enigma ciphering system enabled the western Allies in World War II to read substantial amounts of Morse-coded radio communications of the Axis powers that ...
Significant design. Enigma machine. Scherbius' Enigma patent – U.S. patent 1,657,411, which was granted in 1928. Arthur Scherbius (30 October 1878 – 13 May 1929) was a German electrical engineer who invented the mechanical cipher Enigma machine. [1] He patented the invention and later sold the machine under the brand name Enigma.
Alan Mathison Turing OBE FRS (/ ˈtjʊərɪŋ /; 23 June 1912 – 7 June 1954) was an English mathematician, computer scientist, logician, cryptanalyst, philosopher and theoretical biologist. [ 5 ] He was highly influential in the development of theoretical computer science, providing a formalisation of the concepts of algorithm and computation ...
A wartime picture of a Bletchley Park Bombe. The bombe (UK: / bɒmb /) was an electro-mechanical device used by British cryptologists to help decipher German Enigma-machine -encrypted secret messages during World War II. [ 1 ] The US Navy [ 2 ] and US Army [ 3 ] later produced their own machines to the same functional specification, albeit ...
Marian Adam Rejewski (Polish: [ˈmarjan rɛˈjɛfskʲi] ⓘ; 16 August 1905 – 13 February 1980) was a Polish mathematician and cryptologist who in late 1932 reconstructed the sight-unseen German military Enigma cipher machine, aided by limited documents obtained by French military intelligence. Over the next nearly seven years, Rejewski and ...
Rejewski designed a machine in 1938, called bomba kryptologiczna, which had broken an earlier version of Germany's Enigma machines by the Polish Cipher Bureau before the Second World War. [ 113 ] A new machine with a different strategy was designed by Turing in 1940 with a major contribution from mathematician Gordon Welchman who goes ...