00392nam a2200145Ia 4500008004100000020001500041041001200056082001100068100001700079245007800096250000800174260004000182300000800222650001600230221030s9999    xx            000 0 und d  a8131761663  aEnglish  a105.23  aW. Stallings 0aCryptography & Network Security : Principles & Practicescby W. Stallings  a5th  bPearson  EducationaNew Delhic2011  a743  aBE Computer