Steganography in MPEG V ideo F iles using MACROBLOCKS

Digital communication has become an essentialpart of infrastructure now-a-days and theadvancement in the field of digital communicationin other sense hashiked the fear of getting the datasnooped at the time of sending it from the sender tothe receiver. So, Information Security is becomingan inseparable part of digital Communication. Thesteganographyapproach uses the flexiblemacroblock ordering feature of H.264/AVC to hidemessage bits. The message to be hidden is encryptedusing AES algorithm.The me ssage is hidden twiceand predictedusing the transitive, reflexive,symmetric properties. The proposed method hereevades the copyright infringement andmakes thestego video immune to steganalysis.