00485nam a2200157Ia 4500008004100000020001800041082001400059100002300073245006300096250000800159260004200167300002800209500001900237600002100256650005000277240925s9999    xx            000 0 und d  a9789332518773  a005.8 STA  aStallings, William 0aCryptography and Network Security: principles and practice  a6th  aNew Delhi:bPearson Educationc,2014.  axix,1292p.b0fOriginal  aIncludes Index  aComputer Science  aComputer science, information & general works