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The Enigma machine was invented by German engineer Arthur Scherbius at the end of World War I. [4] The German firm Scherbius & Ritter, co-founded by Scherbius, patented ideas for a cipher machine in 1918 and began marketing the finished product under the brand name Enigma in 1923, initially targeted at commercial markets. [5]
English Heritage plaque in Maida Vale, London marking Turing's birthplace in 1912. Turing was born in Maida Vale, London, while his father, Julius Mathison Turing, was on leave from his position with the Indian Civil Service (ICS) of the British Raj government at Chatrapur, then in the Madras Presidency and presently in Odisha state, in India.
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.
The re-use of a permutation in the German Air Force METEO code as the Enigma stecker permutation for the day. [104] Mavis Lever, a member of Dilly Knox's team, recalled an occasion when there was an unusual message, from the Italian Navy, whose exploitation led to the British victory at the Battle of Cape Matapan.
Stephen Michael Alvin Banister, Codebreaker in Hut 6 and inventor of the 'BLISTS' or 'Banister Lists' - a register of Enigma messages showing special indicators to facilitate detection of certain items and identify crib messages. (Under Secretary at the Dept of the Environment) Rachel Joan Banister (née Rawlence), Codebreaker Hut 6
A three-rotor Enigma with plugboard (Steckerbrett) Depiction of a series of three rotors from an Enigma machine. The Enigma is an electro-mechanical rotor machine used for the encryption and decryption of secret messages. It was developed in Germany in the 1920s.
Welchman invented the "Diagonal Board", an addition which made the British Bombe immensely more powerful. The Diagonal Board exploited the self-reciprocity of the plugboard element of the Enigma; that is, if on the plugboard, letter B is Steckered (plugged) to letter G, then G is also Steckered to B. If 26 rows of 26 way connectors are stacked ...
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.