00373nam a2200145Ia 4500003000500000008004100005020001800046040001900064082000700083100002400090245006400114260002900178300000800207546001200215STCL181203s9999    xx            000 0 und d  a9789332518773  aSTCLbENcSTCL  222  aStallings, William  0aCryptography and Network Security:  Principles and Practice  bPearsonaNew Delhic2015  a660  aEnglish