Video steganography

With the development of the technology, people have tend to figure out methods which are not only capable in hiding a message, but also capable of hiding the existence of a message. Steganography was introduced as a result of such research work. The current study is conducted in order to hide a video in a visual file. We suggest changing the LSB (Least significant Bit) of each byte of the carrier file. As this method does not add any new data but only change the LSB, this method does not increase the size of the carrier file unusually. Thus, the existence of the message cannot be detected. To improve the better performance, cryptographic techniques are also used and implemented in this research. The system was evaluated by checking the ability of hiding the existence of a message and the ability of retrieving the message correctly. Results show that the system has addressed its research objectives. The limitation for this research is that the library avifi1l32.dll can only be used for uncompressed AVI files.