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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 .
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. These were the Enigma machine , [ 1 ] the teleprinter cipher attachment ( Lorenz cipher ), [ 2 ] and the cipher teleprinter the Siemens and Halske T52 ...
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 ...
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 ...
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.
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.
The Siemens & Halske T52, also known as the Geheimschreiber [1] ("secret teleprinter"), or Schlüsselfernschreibmaschine (SFM), was a World War II German cipher machine and teleprinter produced by the electrical engineering firm Siemens & Halske. The instrument and its traffic were codenamed Sturgeon by British cryptanalysts.
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 ...