DNA-Based Audio Steganography

Security is the important criteria relevant to information in transit as well as in storage. Steganography is the technique of hiding secret message in a cover medium in such a way that only the sender and the intended recipient knows the existence of communication. DNA due to its immense storage capacity and high randomness is used now in the field of steganography. Audio steganography is concerned with hiding information in a cover (host) audio signal in an imperceptible way. In this paper, various techniques using DNA sequences and audio files for data hiding is discussed for secure data transmission and reception. It also proposes highly secure method to hide the existence of secret message to prevent unauthorized access. The proposed method has three levels. Single level of encryption and two levels of steganography are used. The main objective of this method is that no one could be able to find the existence of secret message.