00952nam0-22003251i-450-99000051785040332120080124095934.00-201-10150-5000051785FED01000051785(Aleph)000051785FED0100005178520020821d1982----km-y0itay50------baenga-------001yyCryptography and data securityDorothy Elizabeth Robling DenningReading, MassachusettsAddison-Wesleyc1982XIII, 400 p.ill.23 cmComputerControllo degli accessiCrittografiaProtezione dei dati001.64'028'9Denning,Dorothy E.27637ITUNINARICAUNIMARCBK99000051785040332110 E II 545DE 1453DINELDINELCryptography and data security330780UNINA