Understanding cryptography : a textbook for students and practitioners 2026-02-15T21:03:55+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Paar, Christof; Pelzl, Jan (Springer, 2010)