00469nam a2200157Ia 4500008004100000020001800041082001400059100002300073245006300096250000800159260003100167300002300198500001900221600002100240650005000261240925s9999    xx            000 0 und d  a9788131761663  a005.8 STA  aStallings, William 0aCryptography and Network Security: principles and practice  a5th  aMalaysia:bPearsonc,2011.  a110p.b0fOriginal  aIncludes Index  aComputer Science  aComputer science, information & general works