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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 .
The use of SIGINT had even greater implications during World War II. The combined effort of intercepts and cryptanalysis for the whole of the British forces in World War II came under the code name "Ultra" managed from Government Code and Cypher School at Bletchley Park. By 1943, such was the extent of penetration of Axis communications and the ...
The use of SIGINT had even greater implications during World War II. The combined effort of intercepts and cryptanalysis for the whole of the British forces in World War II came under the code name "Ultra", managed from Government Code and Cypher School at Bletchley Park.
The Signal Intelligence Service was a part of the U.S. Army Signal Corps for most of World War II. At that time the Signal Corps was a bureau in the Headquarters, Department of the Army, in addition to being a branch of the Army to which personnel were commissioned or appointed.
The work of human computers at Langley varied. However, most of the work involved reading, analyzing, and plotting data. [1] The human computers did this work by hand. They would work one-on-one with engineers or in computing sections. [1] The computers played major roles in aircraft testing, supersonic flight research, and the space program. [1]
Station HYPO, also known as Fleet Radio Unit Pacific (FRUPAC), was the United States Navy signals monitoring and cryptographic intelligence unit in Hawaii during World War II. It was one of two major Allied signals intelligence units, called Fleet Radio Units in the Pacific theaters , along with FRUMEL in Melbourne , Australia . [ 1 ]
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Joseph John Rochefort (May 12, 1900 [1] – July 20, 1976) was an American naval officer and cryptanalyst.He was a major figure in the United States Navy's cryptographic and intelligence operations from 1925 to 1946, particularly in the Battle of Midway.