00265nam a2200109Ia 4500008004100000100001700041245003600058260002300094260000900117546001200126999001700138170619s9999    xx            000 0 und d  aKAHATE- ATUL 0aCRYPTOGRAPHY & NETWORK SECURITY  bPEARSON EDU. DELHI  c2003  aENGLISH  c22980d22980