Audio-video steganography

摘要

Steganography is the art and science of writing messages which is to be hide behind original cover file which may be audio, video or image. In this paper we are working on audio-video steganography which is the combination of Audio steganography and Image steganography, in this we are using computer forensics technique for authentication purpose. In this paper our aim is to hide secret information behind audio and image of video file. As we know that video is the combination of many still frames of images and audio. We can select any frame of video and audio for hiding our secret data. This paper proposed an algorithm for hiding image in selected video sequence is an image-hiding technique based on Discrete Wavelet Transform (DWT) and Singular Value Decomposition (SVD) and random LSB (Least Significant Bit) audio steganography method for hiding secret text information inside audio of the audio-video file, it reduce embedding distortion of the host audio. This paper focuses the idea of computer forensics technique which is use as a tool for authentication and data security purpose and its use in video steganography in security manner.