00568nam a2200193 a 450000500170000002000150001708200160003210000230004824500640007125000120013526000350014730000250018269000160020769000270022396400160025099700190026699900190028595200700030420251203110812.0  a8120330188  a005.82bSTA  aStallings, William  aCryptography and Network SecuritybPrinciples and Practices  a4th ed.  aNew DelhibPrentice-Hallc2006  axvi,680p.c24 cm. PB  aCrytography  aNetwork security study  bcdefg_  a123616 LIBSC C  c103167d103167  00104070aPUbPUd2007-03-29g236.00l0o005.82 STAp123616yBK