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"tophony" - 1 õppematerjal

TheCodeBreakers
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TheCodeBreakers

See also Cryptanalytics; Cryptology Cryptanalytics, 454 Cryptanalyze, definition, xv Cryptogram, definition, xiv Cryptogram, The, 411 Cryptography as noise, 450-451 contrasted with crypt analysis, 154, 410, 439-441, 452, 455 definition, xi hierarchy of systems, 17 machines for. See Cipher machines mathematical nature of, 440 mechanization of, 339 pleasure of, 410 practical principles, 453-454 spontaneous origins of, 77 time element in, 453-454 See also Cryptology; Cryp- tophony; Steganography Cryptology Arabs create, 80 as a black art, 79 biological roots of, 455 definition, xv future of, 400-402 game theory, 451 literacy's effect, 77 morality of, 178 ontology of, 455-456 permanent embassies' effect, 83 psychological bases of, 455 radio's effect, 153-155 sociology of, 451-452 telegraph's effect, 111-114, 154-155 U.S. takes world lead in, 191 West takes lead over East in, 92 World War I's effect, 165- 167 World War IPs effect, 338- 340 See also Cryptography;

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