00479nam a2200157Ia 4500008004100000020001400041082001400055100002300069245006400092250000800156260003700164300002400201500001900225600002700244650005000271240925s9999    xx            000 0 und d  a139738193  a005.8 STA  aStallings, William 0aCryptography and Network Security: principles and practice   a2nd  aNew Jersey:bM & T Booksc,1999.  a621p.bNAfOriginal  aIncludes Index  aEngineering Technology  aComputer science, information & general works