00501nam a22001457a 4500008004100000020001800041082001000059100001900069245013200088260002800220300002000248500005000268650002000318700001700338171025b        xxu||||| |||| 00| 0 eng d  a9781597497435  a005.81 aRaggo, Michael10aData hiding :bexposing concealed data in multimedia, operating systems, mobile devices and network protocolscby Michael Raggo  aWalthambSyngressc2013  axx, 245p.bill.  aIncludes bibliographical references and index  aData protection1 aHosmer, Chet