High Data Rate Audio Steganography on Different Cover Files

Abstract

Steganography is the art and science of secret message. The secret message or plain text may be hidden in one various ways. The media with hidden information are called stego media and without hidden information are called cover media. Steganography can use for hide both legal and illegal information. It is the technique of hiding information in digital media in order to conceal the existence of the information. To make the system more secured this system uses most powerful algorithm in the first level of security which encrypts the data. In the second level the encrypted data is embedded in to the audio file using modified LSB algorithm. This system ensures more security. To conceal a secret message we need a wrapper or container as a host file. Different wrappers or host files or cover medium are used to hide the secret message e.g. image, audio, video, text. Audio files and signals make appropriate mediums for steganography due to the high data transmission rate and the high level of redundancy. Hiding data in real time communication audio signal is not a simple mission. Steganography requirements as well as real time communication requirements are supposed to be met in order to construct a useful and useful data hiding application. In this paper aims at enhancing the provision of audio steganography by introducing one LSB(least significant bit) coding technique. We design a high bit rate LSB audio watermarking method that reduces embedding distortion of the host audio with increases capacity of secret text. By using standard and proposed algorithm, watermark bits are embedded into higher LSB layer, resulting in increased robustness against noise addition which is limited by perceptual transparency.