00522nam a2200157Ia 4500008004100000020001800041040001700059082002400076110002400100245002900124260004900153300000900202650012800211942000800339999001700347190327s9999||||xx |||||||||||||| ||und||  a0-07-463519-0  aNITILcNITIL  221sta005.82bA844F  aASSET International 0aFirewalls and encryption  aNew DelhibTata McGraw Hill Publishingc2000  a76p.  aData encryption (Computer science); Computer networks-Security measures; Configurations; Computer networks; Data protection  cBKS  c49660d49660