00379nam a2200145Ia 4500003000400000005001700004008004100021020001800062082001800080100002400098245006400122250000800186260002900194300001000223TMU20251108110624.0160921s9999    xx            000 0 und d  a9788131761663  a005.82bSta-C  aStallings, William.  aCryptography and Network Security: Principles and Practices  a5th  bPearsonc2011aNew Delhi  a743p.