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37 relations: Agnes Meyer Driscoll, Attack on Pearl Harbor, Battle of Midway, Black-bag cryptanalysis, Chicago Tribune, Cipher, Code, Espionage Act of 1917, Factory ship, Far East Combined Bureau, IBM, Imperial Japanese Navy, Isolationism, Isoroku Yamamoto, Japanese ship-naming conventions, Joseph Rochefort, Kilindini Harbour, Known-plaintext attack, Morton T. Seligman, Nisshin Maru, Office of Naval Intelligence, OP-20-G, Operation Vengeance, Punched card, Robert R. McCormick, Stanley Johnston, Station CAST, Station HYPO, Streisand effect, The Times, Type A Cipher Machine, United States Customs Service, United States naval districts, Walter Winchell, Whale, World War I, World War II.
Agnes Meyer Driscoll
Agnes Meyer Driscoll (July 24, 1889 – September 16, 1971), known as Miss Aggie or Madame X, was an American cryptanalyst during both World War I and World War II.
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Attack on Pearl Harbor
The attack on Pearl Harbor was a surprise military strike by the Imperial Japanese Navy Air Service against the United States naval base at Pearl Harbor, Hawaii Territory, on the morning of December 7, 1941.
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Battle of Midway
The Battle of Midway was a decisive naval battle in the Pacific Theater of World War II which occurred between 4 and 7 June 1942, only six months after Japan's attack on Pearl Harbor and one month after the Battle of the Coral Sea.
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Black-bag cryptanalysis
In cryptography, black-bag cryptanalysis is a euphemism for the acquisition of cryptographic secrets via burglary, or other covert means – rather than mathematical or technical cryptanalytic attack.
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Chicago Tribune
The Chicago Tribune is a daily newspaper based in Chicago, Illinois, United States, owned by Tronc, Inc., formerly Tribune Publishing.
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Cipher
In cryptography, a cipher (or cypher) is an algorithm for performing encryption or decryption—a series of well-defined steps that can be followed as a procedure.
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Code
In communications and information processing, code is a system of rules to convert information—such as a letter, word, sound, image, or gesture—into another form or representation, sometimes shortened or secret, for communication through a communication channel or storage in a storage medium.
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Espionage Act of 1917
The Espionage Act of 1917 is a United States federal law passed on June 15, 1917, shortly after the U.S. entry into World War I. It has been amended numerous times over the years.
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Factory ship
A factory ship, also known as a fish processing vessel, is a large ocean-going vessel with extensive on-board facilities for processing and freezing caught fish or whales.
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Far East Combined Bureau
The Far East Combined Bureau, an outstation of the British Government Code and Cypher School, was set up in Hong Kong in March 1935, to monitor Japanese, and also Chinese and Russian (Soviet) intelligence and radio traffic.
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IBM
The International Business Machines Corporation (IBM) is an American multinational technology company headquartered in Armonk, New York, United States, with operations in over 170 countries.
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Imperial Japanese Navy
The Imperial Japanese Navy (IJN; Kyūjitai: 大日本帝國海軍 Shinjitai: 大日本帝国海軍 or 日本海軍 Nippon Kaigun, "Navy of the Greater Japanese Empire") was the navy of the Empire of Japan from 1868 until 1945, when it was dissolved following Japan's defeat and surrender in World War II.
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Isolationism
Isolationism is a category of foreign policies institutionalized by leaders who assert that their nations' best interests are best served by keeping the affairs of other countries at a distance.
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Isoroku Yamamoto
was a Japanese Marshal Admiral of the Navy and the commander-in-chief of the Combined Fleet during World War II until his death.
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Japanese ship-naming conventions
Japanese ship names follow different conventions from those typical in the West.
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Joseph Rochefort
Joseph John Rochefort (May 12, 1900 – July 20, 1976) was an American naval officer and cryptanalyst.
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Kilindini Harbour
Kilindini Harbour is a large, natural deep-water inlet extending inland from Mombasa, Kenya.
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Known-plaintext attack
The known-plaintext attack (KPA) is an attack model for cryptanalysis where the attacker has access to both the plaintext (called a crib), and its encrypted version (ciphertext).
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Morton T. Seligman
Morton T. Seligman (July 1, 1895 – July 9, 1967) was an American naval aviator.
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Nisshin Maru
The 8,145-ton vessel is the primary vessel of the Japanese whaling fleet and is the world's only whaler factory ship.
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Office of Naval Intelligence
The Office of Naval Intelligence (ONI) is the military intelligence agency of the United States Navy.
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OP-20-G
OP-20-G or "Office of Chief Of Naval Operations (OPNAV), 20th Division of the Office of Naval Communications, G Section / Communications Security", was the U.S. Navy's signals intelligence and cryptanalysis group during World War II.
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Operation Vengeance
Operation Vengeance was the American military operation to kill Admiral Isoroku Yamamoto of the Imperial Japanese Navy on April 18, 1943, during the Solomon Islands campaign in the Pacific Theater of World War II.
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Punched card
A punched card or punch card is a piece of stiff paper that can be used to contain digital data represented by the presence or absence of holes in predefined positions.
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Robert R. McCormick
Robert Rutherford "Colonel" McCormick (July 30, 1880 – April 1, 1955) was a member of the McCormick family of Chicago who became a lawyer, Republican Chicago alderman, distinguished U.S. Army officer in World War I, and eventually owner and publisher of the Chicago Tribune newspaper.
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Stanley Johnston
Stanley Johnston (1900 – September 13, 1962) was an Australian-American journalist who, as a correspondent during World War II, wrote a story for the Chicago Tribune that inadvertently revealed the extent of American code-breaking activities against the Imperial Japanese Navy (IJN).
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Station CAST
Station CAST was the United States Navy signals monitoring and cryptographic intelligence fleet radio unit at Cavite Navy Yard in the Philippines, until Cavite was captured by the Japanese forces in 1942, during World War II.
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Station HYPO
Station, also known as Fleet Radio Unit Pacific was the United States Navy signals monitoring and cryptographic intelligence unit in Hawaii during World War II.
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Streisand effect
The Streisand effect is a phenomenon whereby an attempt to hide, remove, or censor a piece of information has the unintended consequence of publicizing the information more widely, usually facilitated by the Internet.
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The Times
The Times is a British daily (Monday to Saturday) national newspaper based in London, England.
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Type A Cipher Machine
In the history of cryptography, 91-shiki ohbun-injiki (九一式欧文印字機) ("System 91 Printing Machine") or Angōki Taipu-A (暗号機 タイプA) ("Type A Cipher Machine"), codenamed Red by the United States, was a diplomatic cryptographic machine used by the Japanese Foreign Office before and during World War II.
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United States Customs Service
The United States Customs Service was an agency of the U.S. federal government that collected import tariffs and performed other selected border security duties.
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United States naval districts
The naval district was a military and administrative command ashore.
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Walter Winchell
Walter Winchell (April 7, 1897 – February 20, 1972) was an American newspaper and radio gossip commentator.
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Whale
Whales are a widely distributed and diverse group of fully aquatic placental marine mammals.
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World War I
World War I (often abbreviated as WWI or WW1), also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918.
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World War II
World War II (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although conflicts reflecting the ideological clash between what would become the Allied and Axis blocs began earlier.
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Redirects here:
Coral (cypher machine), JN-25, JN-25b, JN-40.
References
[1] https://en.wikipedia.org/wiki/Japanese_naval_codes
