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Hut 7
Hut 7 was a wartime section of the Government Code and Cypher School at Bletchley Park tasked with the solution of Japanese naval codes such as JN4, JN11, JN40, and JN-25. The hut was headed by Hugh Foss who reported to Frank Birch, the head of Bletchley's Naval section. Hut 7 supplied cryptanalysts and linguists to Bletchley's front line station the Far East Combined Bureau (FECB) at Hong Kong, then Singapore, then Anderson Station (Colombo, Ceylon, now Sri Lanka), then Allidina School in Kilindini, Kenya before moving back to Colombo. Bletchley co-operated with the US Navy Code and Signals Section known as OP-20-G in Washington D.C., and with FRUMEL in Melbourne (although the reciprocal cooperation from Fabian at FRUMEL was limited and reluctant); see Central Bureau and FRUMEL. Pre-War origins Among the first challenges was overcoming the special kana and romaji Morse code system used by the Japanese. GC&CS began breaking Japanese diplomatic traffic in the early 1920s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Government Code And Cypher School
The Government Code and Cypher School (GC&CS) was a British signals intelligence agency set up in 1919. During the First World War, the British Army and Royal Navy had separate signals intelligence agencies, MI1b and NID25 (initially known as Room 40) respectively. It was particularly known for its work on codebreaking at Bletchley Park and after the war became the Government Communications Headquarters (GCHQ). Interwar period In 1919, the Cabinet's Secret Service Committee, chaired by Lord Curzon, recommended that a peacetime codebreaking agency should be created, a task which was given to the Director of Naval Intelligence, Hugh Sinclair.Johnson, 1997, p. 44 Sinclair merged staff from NID25 and MI1b into the new organisation, which initially consisted of around 25–30 officers and a similar number of clerical staff. It was titled the "Government Code and Cypher School" (GC&CS), a cover-name which was chosen by Victor Forbes of the Foreign Office. Alastair Denniston, who h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Melbourne
Melbourne ( , ; Boonwurrung language, Boonwurrung/ or ) is the List of Australian capital cities, capital and List of cities in Australia by population, most populous city of the States and territories of Australia, Australian state of Victoria (state), Victoria, and the second most-populous city in Australia, after Sydney. The city's name generally refers to a metropolitan area also known as Greater Melbourne, comprising an urban agglomeration of Local Government Areas of Victoria#Municipalities of Greater Melbourne, 31 local government areas. The name is also used to specifically refer to the local government area named City of Melbourne, whose area is centred on the Melbourne central business district and some immediate surrounds. The metropolis occupies much of the northern and eastern coastlines of Port Phillip Bay and spreads into the Mornington Peninsula, part of West Gippsland, as well as the hinterlands towards the Yarra Valley, the Dandenong Ranges, and the Macedon R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oswald Tuck
Instructor Captain Oswald Thomas Tuck (1 September 1876 – 26 February 1950) was a naval officer and teacher of Japanese. He served as a naval instructor in navigation and Japanese and later translated a confidential history of the Russo-Japanese War. He retired as an Instructor Captain in the Royal Navy but was recalled to duty in 1941 to run the Bedford Japanese School, which trained young men and women for work at Bletchley Park. Early years Tuck was the fourth son and fifth and last child of Henry Barber Tuck (1834–1906) and Harriott Tuck (née Horn (1837–1907). He attended the Royal Hospital School, Greenwich, leaving in January 1892 with the highest results in his class. While still at school he applied to Sir Sir William Christie, the Astronomer Royal, to take the examination to become a 'computer' at the Royal Observatory. He was the only candidate but his examination papers were judged excellent. He began work at the Royal Observatory, Greenwich, on 11 January 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Oxford
The University of Oxford is a collegiate university, collegiate research university in Oxford, England. There is evidence of teaching as early as 1096, making it the oldest university in the English-speaking world and the List of oldest universities in continuous operation, second-oldest continuously operating university globally. It expanded rapidly from 1167, when Henry II of England, Henry II prohibited English students from attending the University of Paris. When disputes erupted between students and the Oxford townspeople, some Oxford academics fled northeast to Cambridge, where they established the University of Cambridge in 1209. The two English Ancient university, ancient universities share many common features and are jointly referred to as ''Oxbridge''. The University of Oxford comprises 43 constituent colleges, consisting of 36 Colleges of the University of Oxford, semi-autonomous colleges, four permanent private halls and three societies (colleges that are depar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Cambridge
The University of Cambridge is a Public university, public collegiate university, collegiate research university in Cambridge, England. Founded in 1209, the University of Cambridge is the List of oldest universities in continuous operation, world's third-oldest university in continuous operation. The university's founding followed the arrival of scholars who left the University of Oxford for Cambridge after a dispute with local townspeople. The two ancient university, ancient English universities, although sometimes described as rivals, share many common features and are often jointly referred to as Oxbridge. In 1231, 22 years after its founding, the university was recognised with a royal charter, granted by Henry III of England, King Henry III. The University of Cambridge includes colleges of the University of Cambridge, 31 semi-autonomous constituent colleges and List of institutions of the University of Cambridge#Schools, Faculties, and Departments, over 150 academic departm ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Tiltman
Brigadier John Hessell Tiltman, (25 May 1894 – 10 August 1982) was a British Army officer who worked in intelligence, often at or with the Government Code and Cypher School (GC&CS) starting in the 1920s. His intelligence work was largely connected with cryptography, and he showed exceptional skill at cryptanalysis. His work in association with Bill Tutte on the cryptanalysis of the Lorenz cipher, the German teleprinter cipher, called " Tunny" (for tunafish) at Bletchley Park, led to breakthroughs in attack methods on the code, without a computer. It was to exploit those methods, at extremely high speed with great reliability, that Colossus, the first digital programmable electronic computer, was designed and built. Biography Tiltman's parents were from Scotland, though he was born in London. He joined the British Army in August 1914, initially with the London Scottish Regiment, and saw service at the front during World War I with the 6th Battalion King's Own Scottish Bord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Australian Navy
The Royal Australian Navy (RAN) is the navy, naval branch of the Australian Defence Force (ADF). The professional head of the RAN is Chief of Navy (Australia), Chief of Navy (CN) Vice admiral (Australia), Vice Admiral Mark Hammond (admiral), Mark Hammond. The Chief of Navy is also jointly responsible to the Minister for Defence (Australia), Minister for Defence (MINDEF) and the Chief of the Defence Force (Australia), Chief of the Defence Force (CDF). The Department of Defence (Australia), Department of Defence, which is a part of the Australian Public Service, administers the ADF, and ergo, the Royal Australian Navy. In 2023, the Surface Fleet Review was introduced to outline the future of the Navy. The navy was formed in 1901 as the Commonwealth Naval Forces (CNF) through the amalgamation of the colonial navies of Australia following the federation of Australia. Although it was originally intended for local defence, it became increasingly responsible for regional defence as the ... [...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 Rail ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
William Clarke (cryptographer)
William Francis "Nobby" Clarke (1883–1961) was a British intelligence officer and cryptographer of naval codes in both World Wars. Background and early life Clarke was educated at Harrow School and Magdalen College, Oxford, and trained as a lawyer, being admitted to the bar in 1906 by his father, Sir Edward Clarke, a prominent lawyer and later Solicitor-General. Naval career In 1915, he was commissioned as an assistant paymaster, having failed the eye examination for executive officer. He knew German, and in March 1916 joined Room 40. His talent was for information analysis rather than code-breaking. He was on duty during the Battle of Jutland, and was unimpressed by the inefficient handling and distribution of intelligence. When Clarke and Francis Birch were chosen in 1919 to write a history of Room 40, their outspoken criticism of the Navy's mishandling of intelligence led to the history being allegedly "suppressed". Later career In 1919, Clarke joined the Governmen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bantam Press
Bantam Press is an imprint of Transworld Publishers which is a British publishing division of Penguin Random House. It is based on Uxbridge Road in Ealing near Ealing Broadway station, London, the same address as Transworld. It releases hardcover A hardcover, hard cover, or hardback (also known as hardbound, and sometimes as casebound (At p. 247.)) book is one bookbinding, bound with rigid protective covers (typically of binder's board or heavy paperboard covered with buckram or other clo ... and prestige softcover book editions. Bantam Press also publishes Sophie Kinsella's Shopaholic books. References External linksTransworld website Book publishing companies of the United Kingdom {{UK-publish-company-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morse Code
Morse code is a telecommunications method which Character encoding, encodes Written language, text characters as standardized sequences of two different signal durations, called ''dots'' and ''dashes'', or ''dits'' and ''dahs''. Morse code is named after Samuel Morse, one of the early developers of the system adopted for electrical telegraphy. International Morse code encodes the 26 ISO basic Latin alphabet, basic Latin letters to , one Diacritic, accented Latin letter (), the Arabic numerals, and a small set of punctuation and procedural signals (Prosigns for Morse code, prosigns). There is no distinction between upper and lower case letters. Each Morse code symbol is formed by a sequence of ''dits'' and ''dahs''. The ''dit'' duration can vary for signal clarity and operator skill, but for any one message, once the rhythm is established, a beat (music), half-beat is the basic unit of time measurement in Morse code. The duration of a ''dah'' is three times the duration ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Romaji
The romanization of Japanese is the use of Latin script to write the Japanese language. This method of writing is sometimes referred to in Japanese as . Japanese is normally written in a combination of logogram, logographic characters borrowed from Chinese (kanji) and syllabary, syllabic scripts (kana) that also ultimately derive from Chinese characters. There are several different romanization systems. The three main ones are Hepburn romanization, Kunrei-shiki romanization (ISO 3602) and Nihon-shiki romanization (ISO 3602 Strict). Variants of the Hepburn system are the most widely used. Romanized Japanese may be used in any context where Japanese text is targeted at non-Japanese speakers who cannot read kanji or kana, such as for names on street signs and passports and in dictionaries and textbooks for foreign learners of the language. It is also used to transliterate Japanese terms in text written in English (or other languages that use the Latin script) on topics related ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
