00605nam a2200205Ia 4500003000400000005001700004008004100021020001500062040001800077041000800095082001900103100002400122245009100146250001200237260004400249300002800293650002800321650003000349650002000379OSt20251112153946.0210716s2009    xx            000 0 und d  a8178086050  cAIMIT LIBRARY  aeng  a005.822bSTAW  aStallings, William.  aCryptography and network security : bprinciples and practices /cBy William Stallings  a2nd ed.  aNew Delhi :bPearson Education ,c2009.  axvi,569/2002bPBc24 cm  aConventional encryption  aNetwork security practice  aSystem security