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cryptological security

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  • National Security Agency — NSA redirects here. For other uses, see NSA (disambiguation). For the Bahraini intelligence agency, see National Security Agency (Bahrain). National Security Agency Agency overview …   Wikipedia

  • National Security Agency — 39° 06′ 32″ N 76° 46′ 12″ W / 39.109, 76.77 …   Wikipédia en Français

  • Japanese cryptology from the 1500s to Meiji — The cipher system that Uesugi used is basically a simple substitution usually known as a Polybius square or “checkerboard.” The i ro ha alphabet contains forty eight letters, so a seven by seven square is used, with one of the cells left blank.… …   Wikipedia

  • Biuro Szyfrów — The Biuro Szyfrów ([ˈbʲurɔ ˈʂɨfruf] ( listen), Polish for Cipher Bureau ) was the interwar Polish General Staff s agency charged with both cryptography (the use of ciphers and codes) and cryptology (the study of ciphers and codes,… …   Wikipedia

  • William F. Friedman — Infobox Engineer image width = 180px caption = William F. Friedman name = William F. Friedman nationality = United States birth date = September 24, 1891 birth place = Kishinev, Bessarabia death date = November 12, 1969 death place = education =… …   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

  • 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

  • Ultra — (sometimes capitalised ULTRA) was the name used by the British for intelligence resulting from decryption of encrypted German radio communications in World War II. The term eventually became the standard designation in both Britain and the United …   Wikipedia

  • Bombe — In the history of cryptography, the Bombe was an electromechanical device used by British cryptologists to help break German Enigma machine signals during World War II. The bombe was designed by Alan Turing, with an important refinement suggested …   Wikipedia

  • Enigma machine — Military Enigma machine …   Wikipedia

  • Venona project — The VENONA project was a long running secret collaboration of the United States and United Kingdom intelligence agencies involving cryptanalysis of messages sent by intelligence agencies of the Soviet Union, the majority during World War II.… …   Wikipedia