00545nam a22001817a 450000500170000001000150001702000260003203500140005803700130007208200110008510000200009624500630011625000120017926000300019127000670022130000250028850000500031320191018124256.0  aENG-126697  a9789389347104c350.00  aEN-110229  bDBAD/PUB  a005.82  aPachghare, V.K.  aCryptography and information security /cBy V.K. Pachghare  a3rd ed.  aDelhibPHI Learningc2019  aRimjhim House,111, Patparganj Industrial EstatebDelhie110092  axix;500p.c23cm(pbk)  aIncludes bibliographical references and index