Steganography is an active research area in the field of information security. Audio steganography refers to the process of embedding a secret message into an audio signal for secure message transmission. In this paper, we propose a novel secure and robust audio steganography scheme with good embedding rate. The key idea behind the proposed scheme is that a secure encryption scheme is used in the steganography scheme to encrypt the secret message. Further, a random least significant bit plane will be selected by using the genetic algorithm. The encrypted secret message bits will be embedded into the selected bit-plane. The genetic algorithm helps to reduce the distortions on the stego audio after the data hiding process. The selection of higher bit-planes for data hiding process will help to achieve better robustness against noises. The experimental study of the proposed scheme on a variety of audio signals shows that the proposed scheme performs better than the well-known least significant bit steganoaraphy scheme.
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