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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 ...
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 ...
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 ...
World War II cryptography. Cryptography was used extensively during World War II because of the importance of radio communication and the ease of radio interception. The nations involved fielded a plethora of code and cipher systems, many of the latter using rotor machines. As a result, the theoretical and practical aspects of cryptanalysis, or ...
The Lorenz SZ40, SZ42a and SZ42b were German rotor stream cipher machines used by the German Army during World War II. They were developed by C. Lorenz AG in Berlin. The model name SZ was derived from Schlüssel-Zusatz, meaning cipher attachment. The instruments implemented a Vernam stream cipher. British cryptanalysts, who referred to ...
Enigma-M4. Key manual of the Kriegsmarine "Der Schlüssel M". The Enigma-M4 (also called SchlüsselM, more precisely SchlüsselM Form M4) is a rotor key machine that was used for encrypted communication by the German Kriegsmarine during World War II from October 1941. In contrast to the previously used Enigma-M3 and the Enigma I and the Enigma ...
Arthur Scherbius, inventor of the Enigma cipher. 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. Scherbius offered unequalled opportunities and showed the importance of ...
Rotor machine. In cryptography, a rotor machine is an electro-mechanical stream cipher device used for encrypting and decrypting messages. Rotor machines were the cryptographic state-of-the-art for much of the 20th century; they were in widespread use in the 1920s–1970s. The most famous example is the German Enigma machine, the output of ...