00509nam a2200181 a 450000500170000002000150001708200160003210000170004824500380006526000380010330000260014169000170016769000210018496400160020599700190022199900170024095200700025720251203110630.0  a0070494835  a005.82bKAH  aKahate, Atul  aCryptography and Network Security  aNew DelhibTata McGraw-Hillc2003  axxii,435p.c24 cm. PB  aCryptography  aNetwork security  bcdefg_  a113991 LIBSC C  c97020d97020  00104070aPUbPUd2005-08-08g200.00l0o005.82 KAHp113991yBK