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BRUSA Agreement
The 1943 BRUSA Agreements (Britain–United States of America agreement) Ralph Erskine, ' Birch, Francis Lyall (1889–1956)', Oxford Dictionary of National Biography, Oxford University Press, 2004 was an agreement between the British and US governments to facilitate co-operation between the US War Department and the British Government Code and Cypher School (GC&CS). It followed the 1942 "Holden Agreement". The Sinkov Mission of January 1941 from America had visited Bletchley Park the Government Code and Cypher School Headquarters in England, met British "codebreakers" including Alan Turing, and negotiated an agreement to collaborate on cryptological work (see Ultra). However the details given about Enigma may have been sketchy. Colonel Alfred McCormack of the Special Branch of Military Intelligence Service, Colonel Telford Taylor of Military Intelligence, and Lieutenant Colonel William Friedman visited Bletchley Park in April 1943. The American trio worked with Commander Ed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Francis Birch (cryptographer)
Francis Lyall "Frank" Birch, (5 December 1889 – 14 February 1956) was a British cryptographer and actor. He was educated at Eton College and King's College, Cambridge. During World War I, he served as a lieutenant commander with the Royal Naval Volunteer Reserve, and served in the Atlantic, the Channel and the Dardanelles before joining the Naval Intelligence Division ( Room 40) from 1916-19. Birch wrote a satirical history of Room 40, ''Alice in ID25''. Birch was appointed an OBE in 1919. He was a fellow of King's College, Cambridge, between 1915 and 1934 and a lecturer in history at Cambridge from 1921 until 1928. Birch left Cambridge to pursue an acting career in the 1930s, including the role of Widow Twankey in pantomime. In 1939, he was part of a BBC television production in a Teresa Deevy play "In Search of Valour". He joined the Naval section at Bletchley Park in September 1939, and later became Head of the (German) Naval Section. He had to face the shortage ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Friedman
William Frederick Friedman (September 24, 1891 – November 12, 1969) was a US Army cryptographer who ran the research division of the Army's Signal Intelligence Service (SIS) in the 1930s, and parts of its follow-on services into the 1950s. In 1940, subordinates of his led by Frank Rowlett broke Japan's PURPLE cipher, thus disclosing Japanese diplomatic secrets before America's entrance into World War II. Early life Friedman was born Wolf Friedman ( yi, װאָלףֿ פֿרידמאַן, russian: Вольф Ф. Фридман), in Chişinău, Bessarabia, the son of Frederick Friedman, a Jew from Bucharest who worked as a translator and linguist for the Russian Postal Service, and the daughter of a well-to-do wine merchant. Friedman's family fled Russia in 1892 to escape the virulent anti-Semitism there, ending up in Pittsburgh, Pennsylvania. Three years later, his first name was changed to William. As a child, Friedman was introduced to cryptography in the short story " The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Bureau
The Central Bureau was one of two Allied signals intelligence (SIGINT) organisations in the South West Pacific area (SWPA) during World War II. Central Bureau was attached to the headquarters of the Allied Commander of the South West Pacific area, Douglas MacArthur. Central Bureau's role was to research and decrypt intercepted Imperial Japanese Army (land and air) traffic and work in close co-operation with other SIGINT centres in the USA, United Kingdom and India. Air activities included both army and navy air forces, as there was no independent Japanese Air Force. The other unit was the joint Royal Australian Navy/ United States Navy Fleet Radio Unit, Melbourne (FRUMEL), which reported directly to C-in-C, Pacific (Admiral Chester Nimitz) in Hawaii and the Chief of Naval Operations (Admiral King) in Washington. Background General Douglas MacArthur had his own signals intelligence unit, Station 6, while he was in command in the Philippines before the War started, and was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FRUMEL
Fleet Radio Unit, Melbourne (FRUMEL) was a United States–Australian–British signals intelligence unit, founded in Melbourne, Australia, during World War II. It was one of two major Allied signals intelligence units called Fleet Radio Units in the Pacific theatres, the other being FRUPAC (also known as Station HYPO), in Hawaii. FRUMEL was a US Navy organisation, reporting directly to CiCPAC (Admiral Nimitz) in Hawaii and the Chief of Naval Operations (Admiral King) in Washington, and hence to the central cryptographic organization. The separate Central Bureau in Melbourne (later Brisbane) was attached to (and reported to) MacArthur's Allied South West Pacific Area command headquarters. History FRUMEL was established at the Monterey Apartments in Queens Road in early 1942, and was made up of three main groups. First was Lieutenant Rudolph J. (Rudi) Fabian's 75-man codebreaker unit, previously based at the United States Navy's Station CAST in the Philippines before being evac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eric Nave
Captain Eric Nave (18 March 1899 – 23 June 1993) was an Australian cryptographer and intelligence officer in the Royal Australian Navy (RAN) and Royal Navy, noted for his work with joint Allied intelligence units during World War II. He served in the navy from 1916 to 1949, then served as an officer in the Australian Security Intelligence Organisation until 1959. Early life and background Nave was born in Croydon, Adelaide, the son of Thomas Henry Theodore Nave and Ethel Sophie (née Peterson). His father worked for South Australian Railways (SAR), serving as chief clerk in the office of the Comptroller of Accounts. Thomas was also a long-standing member of the Adelaide Repertory Theatre, initially as an actor and producer, then as business manager, acting secretary, and chairman. He was subsequently made a Member of the Order of the British Empire in the 1948 Birthday Honours for his "services in cultural life of Adelaide". Eric Nave began working for South Australian Railw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Japanese Naval Codes
The vulnerability of Japanese naval codes and ciphers was crucial to the conduct of World War II, and had an important influence on foreign relations between Japan and the west in the years leading up to the war as well. Every Japanese code was eventually broken, and the intelligence gathered made possible such operations as the victorious American ambush of the Japanese Navy at Midway in 1942 (by breaking code JN-25b) and the shooting down of Japanese admiral Isoroku Yamamoto a year later in Operation Vengeance. The Imperial Japanese Navy (IJN) used many codes and ciphers. All of these cryptosystems were known differently by different organizations; the names listed below are those given by Western cryptanalytic operations. Red code The Red Book code was an IJN code book system used in World War I and after. It was called "Red Book" because the American photographs made of it were bound in red covers.Greg Goebel"US Codebreakers In The Shadow Of War" 2018. It should not be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoyt Vandenberg
Hoyt Sanford Vandenberg (January 24, 1899 – April 2, 1954) was a United States Air Force general. He served as the second Chief of Staff of the Air Force, and the second Director of Central Intelligence. During World War II, Vandenberg was the commanding general of the Ninth Air Force, a tactical air force in England and in France, supporting the Army, from August 1944 until V-E Day. Vandenberg Space Force Base on the central coast of California is named after him. In 1946, he was briefly the U.S. Chief of Military Intelligence. He was the nephew of Arthur H. Vandenberg, a former U.S. Senator from Michigan.Jay Nordlinger“Michigan Men”(Review of ''Arthur Vandenberg: The Man in the Middle of the American Century'', by Hendrik Meijer.) ''National Review''. November 27, 2017. ''(Retrieved 2018-06-22.)'' Early life Vandenberg was born in Milwaukee, Wisconsin, the son of Pearl Kane and William Collins Vandenbergh, both from Dutch ancestry. He grew up in Lowell, Massachusetts, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wireless Experimental Centre
The Wireless Experimental Centre (WEC) was one of two overseas outposts of Station X, Bletchley Park, the British signals analysis centre during World War II. The other outpost was the Far East Combined Bureau. Codebreakers Wilfred Noyce and Maurice Allen broke the Japanese Army's Water Transport Code here in 1943, the first high-level Japanese Army code broken. John Tiltman broke prewar Russian and Japanese codes at Simla and Abbottabad. Location and function The WEC was located in Ramjas College (formerly part of the Delhi University campus), atop a hill called Anand Parbat "the hill of happiness" and was several miles out of Delhi and hence secure. Staff were from the Intelligence Corps, the British and Indian armies and the Royal Air Force. Section C under Colonel Marr-Johnson was a radio (wireless) intercept station and decoding section for Japanese codes. There were three outstations: the Wireless Experimental Depot in Abbottabad (where Russian (Soviet) transmissions we ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UKUSA Agreement
The United Kingdom – United States of America Agreement (UKUSA, ) is a multilateral agreement for cooperation in signals intelligence between Australia, Canada, New Zealand, the United Kingdom, and the United States. The alliance of intelligence operations is also known as the Five Eyes. In classification markings this is abbreviated as FVEY, with the individual countries being abbreviated as AUS, CAN, NZL, GBR, and USA, respectively. Emerging from an informal agreement related to the 1941 Atlantic Charter, the secret treaty was renewed with the passage of the 1943 BRUSA Agreement, before being officially enacted on 5 March 1946 by the United Kingdom and the United States. In the following years, it was extended to encompass Canada, Australia, and New Zealand. Other countries, known as "third parties", such as West Germany, the Philippines, and several Nordic countries, also joined the UKUSA community in associate capacities, although they are not part of the mechanism for a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GCHQ
Government Communications Headquarters, commonly known as GCHQ, is an intelligence and security organisation responsible for providing signals intelligence (SIGINT) and information assurance (IA) to the government and armed forces of the United Kingdom. Primarily based at " The Doughnut" in the suburbs of Cheltenham, GCHQ is the responsibility of the country's Secretary of State for Foreign and Commonwealth Affairs (Foreign Secretary), but it is not a part of the Foreign Office and its Director ranks as a Permanent Secretary. GCHQ was originally established after the First World War as the Government Code and Cypher School (GC&CS) and was known under that name until 1946. During the Second World War it was located at Bletchley Park, where it was responsible for breaking the German Enigma codes. There are two main components of the GCHQ, the Composite Signals Organisation (CSO), which is responsible for gathering information, and the National Cyber Security Centre (NCSC), wh ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Security Agency
The National Security Agency (NSA) is a national-level intelligence agency of the United States Department of Defense, under the authority of the Director of National Intelligence (DNI). The NSA is responsible for global monitoring, collection, and processing of information and data for foreign and domestic intelligence and counterintelligence purposes, specializing in a discipline known as signals intelligence (SIGINT). The NSA is also tasked with the protection of U.S. communications networks and information systems. The NSA relies on a variety of measures to accomplish its mission, the majority of which are clandestine. The existence of the NSA was not revealed until 1975. The NSA has roughly 32,000 employees. Originating as a unit to decipher coded communications in World War II, it was officially formed as the NSA by President Harry S. Truman in 1952. Between then and the end of the Cold War, it became the largest of the U.S. intelligence organizations in terms of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SIGINT
Signals intelligence (SIGINT) is intelligence-gathering by interception of '' signals'', whether communications between people (communications intelligence—abbreviated to COMINT) or from electronic signals not directly used in communication (electronic intelligence—abbreviated to ELINT). Signals intelligence is a subset of intelligence collection management. As classified and sensitive information is usually encrypted, signals intelligence in turn involves the use of cryptanalysis to decipher the messages. Traffic analysis—the study of who is signaling whom and in what quantity—is also used to integrate information again. History Origins Electronic interceptions appeared as early as 1900, during the Boer War of 1899–1902. The British Royal Navy had installed wireless sets produced by Marconi on board their ships in the late 1890s, and the British Army used some limited wireless signalling. The Boers captured some wireless sets and used them to make vital transm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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