enciphered signal

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• Cryptanalysis of the Enigma — enabled the western Allies in World War II to read substantial amounts of secret Morse coded radio communications of the Axis powers that had been enciphered using Enigma machines. This yielded military intelligence which, along with that from… …   Wikipedia

• Room 40 — Admiralty Ripley building In Whitehall, built in 1726 and still used for naval board meetings. Room 40 was in the northern section of the first floor, on the same corridor as the boardroom and First Sea Lord s office. In the history of… …   Wikipedia

• Colossus computer — Colossus MkI/MkII A Colossus Mark 2 computer. The operator on the left is Dorothy Duboisson. The slanted control panel on the left was used to set the pin patterns on the Lorenz. The bedstead paper tape transport is on the right. Developer Tommy… …   Wikipedia

• Elizebeth Friedman — The following article is taken from the Hall of Honor from the National Cryptologic Museum [http://www.nsa.gov/honor/honor00005.cfm] :Elizebeth Smith Friedman (1892 ndash;31 October, 1980) was cryptanalyst and author, and a pioneer in U.S.… …   Wikipedia

• Enigma machine — Military Enigma machine …   Wikipedia

• Magic (cryptography) — Magic was an Allied cryptanalysis project during World War II. It involved the United States Army s Signals Intelligence Section (SIS) and the United States Navy s Communication Special Unit. [1] Contents 1 Codebreaking 1.1 RED …   Wikipedia

• Marian Rejewski — (probably 1932, the year he first solved the Enigma machine). Courtesy of Janina Sylwestrzak, Rejewski s daughter. Born Marian Adam Rejewski August 16, 1905(1905 0 …   Wikipedia

• SIGSALY — exhibit at the National Cryptologic Museum In cryptography, SIGSALY (also known as the X System, Project X, Ciphony I, and the Green Hornet) was a secure speech system used in World War II for the highest level Allied communications. It pioneered …   Wikipedia

• cryptology — cryptologist, n. cryptologic /krip tl oj ik/, cryptological, adj. /krip tol euh jee/, n. 1. cryptography. 2. the science and study of cryptanalysis and cryptography. [1635 45; < NL cryptologia. See CRYPTO , LOGY] * * * Introduction …   Universalium

• German submarine U-505 — U 505 is a Type IXC U boat of the Kriegsmarine that was captured on 4 June 1944 by United States Navy Task Group 22.3 (TG 22.3). Codebooks and other secret materials from U 505 assisted Allied code breaking operations. U 505 was the first warship …   Wikipedia

• Jefferson disk — The Jefferson disk, or wheel cypher as Jefferson named it, is a cipher system using 26 wheels, each with the letters of the alphabet arranged randomly around them. First invented by Thomas Jefferson in 1795, it did not become well known and was… …   Wikipedia