00509nam a2200205 a 450000500170000002000190001708200150003610000210005110000190007210000190009124500620011025000120017226000290018430000300021350000190024360000080026263000210027085600060029185600060029720251203114853.0  a97893332578210  a005.8bKAU  aKaufman, Charlie  aPerlman, Radia  aSpeciner, Mike  aNetwork securitybprivate communication in a public world  a2nd ed.  aNew DelhibPearsonc2017  axxxiv, 638 p.c24 cm.bPB  aIncludes index  bc_  aNetwork security  f_  a_