Video Steganography

The use of internet has increased tremendously over the years and the concept of data security is gaining momentum. Data could get corrupted if attacked by a virus or a hacker. The data needs to be protected from unauthorized users to prevent undesired actions. This paper deals with data security in which secret data is embedded in cover video. A methodology for creation of a stego video is defined using the Least Significant Bit (LSB) Replacement algorithm. The secret data to be hidden is replaced at the LSB positions of pixels of the carrier video frame. Thus it becomes very difficult for an intruder to guess that data is hidden in the video and the purpose of data security can be achieved. The performance parameters like Peak Signal to Noise Ratio (PSNR) and Mean Square Error (MSE) can be calculated to test the quality of stego video.