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Military Enigma machine, model "Enigma I", used during the late 1930s and during the war; displayed at Museo scienza e tecnologia Milano, Italy. German Army cryptographic systems of World War II were based on the use of three types of cryptographic machines that were used to encrypt communications between units at the division level.
Kozaczuk, Władysław (1984), Enigma: How the German Machine Cipher was Broken, and how it was Read by the Allies in World War Two, edited and translated by Christopher Kasparek (2 ed.), Frederick, Maryland: University Publications of America, ISBN 978-0890935477 A revised and augmented translation of W kręgu enigmy, Warsaw, Książka i Wiedza ...
Hans-Thilo Schmidt (13 May 1888 – 19 September 1943) codenamed Asché or Source D, was a German spy who sold secrets about the Enigma machine to the French during World War II.
Enigma I is also known as the Wehrmacht, or "Services" Enigma, and was used extensively by German military services and other government organisations (such as the railways [56]) before and during World War II. Heinz Guderian in the Battle of France, with an Enigma machine. Note one soldier is keying in text while another writes down the results.
Marian Rejewski c. 1932, when he first broke Enigma. In the 1920s the German military began using a 3-rotor Enigma, whose security was increased in 1930 by the addition of a plugboard. [37] The Polish Cipher Bureau sought to break it because of the threat that Poland faced from Germany, but the early attempts did not succeed. Mathematicians ...
From the early 1930s to the start of the war, Germany had a good understanding of, and indeed a lead in, both cryptoanalytic and cryptographic cryptology services. The various agencies had cracked the French–English inter-allied cipher, the Germans with some help from the Italian Communications Intelligence Organization stole American diplomatic codes, and codes taken from the British ...
Drs Huttenhain and Fricke of OKW/Chi were requested to write about the methods of solution of the German machines. [12] This covered the un-steckered Enigma, the steckered Enigmas; Hagelin B-36 and BC-38; the cipher teleprinters Siemens and Halske T52 a/b, T52/c; the Siemens SFM T43; and the Lorenz SZ 40, SZ42 a/b.
Hut 6 was a wartime section of the Government Code and Cypher School (GC&CS) at Bletchley Park, Buckinghamshire, Britain, tasked with the solution of German Army and Air Force Enigma machine cyphers. Hut 8, by contrast, attacked Naval Enigma.