Data hiding in encrypted h.265/AVC video streams by code word substitution

Steganography is main part of hiding the fact that communication is taking place,by hiding information in other information. because of their frequency on the internet digital videos are the most popularly used for this purpose. data hiding in the process of encoded domain without decoded secure the secret of the content. likewise,video file size is strictly secured even after encryption and data embedding. video compression a technique is also involves in this system it can be high complexity,bandwidth and delay. this is because of its high-resolution. in this paper,we propose a system analyzing using h.265/avc (advanced video code) video streams by code word substitution method. by using stenographic analysis tool the encryption part can be accessed.