00363nam a2200133 a 450000500170000000800410001702000180005804100080007608200100008410000170009424500540011126400380016530000260020320260717093306.0260717s2015    ii            000 0 eng d  a9781259029882  aeng04a005.81 aAtul, Kahate10aCryptography and network security /cAtul, Kahate 1aNew Delhi :bMcGraw Hill,cc2015.  axxii, 501 p. ; 24 cm.