Dual steganography for hiding text in video by linked list method

Dual Steganography is the process of using Steganography combined with Cryptography. Steganography is the process of hiding confidential data´sin the media files such as audio, images, videos etc. Cryptography is a branch of mathematics concerned with the study of hiding and revealing information and also for proving authorship of messages. In this paper, Dual Steganography concept has been applied to secure the original videos from unauthorized person. The process has been done by embedding the original video inside another video. Both the videos are converted into frames first. Then the individual frames of original video are sampled with the frames of another video. After completing the sampling process, the output frames are combined to get the encrypted video.