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Genevieve Marie Grotjan Feinstein (April 30, 1913 – August 10, 2006) was an American mathematician and cryptanalyst. She worked for the Signals Intelligence Service throughout World War II, during which time she played an important role in deciphering the Japanese cryptography machine Purple, and later worked on the Cold War-era Venona project .
Minecraft is an upcoming American adventure film based on the 2011 video game of the same name by Mojang Studios. Produced by Legendary Pictures, Mojang, and Vertigo Entertainment, and distributed by Warner Bros. Pictures, it is being directed by Jared Hess, from a screenplay written by Chris Bowman and Hubbel Palmer, and produced by Jill Messick, [a] Lydia Winters, Mary Parent, Jon Berg, Vu ...
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 machine was an electromechanical device that used stepping-switches to encrypt ...
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Magic was set up to combine the US government's cryptologic capabilities in one organization dubbed the Research Bureau. Intelligence officers from the Army and Navy (and later civilian experts and technicians) were all under one roof. Although they worked on a series of codes and cyphers, their most important successes involved RED, BLUE, and ...
Code Purple can mean: the US Environmental Protection Agency code for an air quality index between 201 and 300. a hospital emergency code. The US codename for the Japanese Type B Cipher Machine. Category: Disambiguation pages.
Type A Cipher Machine In the history of cryptography, 91-shiki ōbun injiki (九一式欧文印字機, "System 91 Typewriter for European Characters") 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. A relatively simple device, it was ...
Operations security ( OPSEC) is a process that identifies critical information to determine whether friendly actions can be observed by enemy intelligence, determines if information obtained by adversaries could be interpreted to be useful to them, and then executes selected measures that eliminate or reduce adversary exploitation of friendly ...