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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 .
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.
US Navy bombe at the National Cryptologic Museum. Partial schematics of the US Navy bombe.. The United States Naval Computing Machine Laboratory (NCML) was a highly secret design and manufacturing site for code-breaking machinery located in Building 26 of the National Cash Register (NCR) company in Dayton, Ohio and operated by the United States Navy during World War II.
In the history of cryptography, the "System 97 Typewriter for European Characters" (九七式欧文印字機 kyūnana-shiki ōbun injiki) or "Type B Cipher Machine", codenamed Purple by the United States, was an encryption machine used by the Japanese Foreign Office from February 1939 to the end of World War II.
Jean Argles (1925–2023), British code breaker in World War II; Arne Beurling (1905–1986), Swedish mathematician and cryptographer. Lambros D. Callimahos, US, NSA, worked with William F. Friedman, taught NSA cryptanalysts. Ann Z. Caracristi, US, SIS, solved Japanese Army codes in World War II, later became deputy director of National ...
The W.E.B. Griffin series The Corps is a fictionalized account of United States Navy and Marine Corps intelligence operations in the Pacific Theater during World War II. Many of the main characters in the novels, both fictional and historical, have access to and use intelligence from Magic.
Lorenz cipher machine, used in World War II to encrypt communications of the German High Command. Cryptography , or cryptology (from Ancient Greek : κρυπτός , romanized : kryptós "hidden, secret"; and γράφειν graphein , "to write", or -λογία -logia , "study", respectively [ 1 ] ), is the practice and study of techniques for ...
Before the US entered the war at the end of 1941, B-Dienst could also read several American codes. This changed after April 1942, when the US Navy changed their code systems, but earlier, the ability to read American message traffic contributed to the success of Operation Paukenschlag (Operation Drumbeat ), the destructive U-boat attacks off ...