A Practical Three Layered Approach of Data Hiding Using Audio Steganography

Abstract: This paper is about the study of cryptographic and steganography techniques and provides the approach of security with the combination of these techniques .Security and confidentiality is a big challenge for computer users. This paper proposed the three layer approach for security of information which includes hashing (MD5), encryption and decryption algorithm (DES) and LSB techniques. LSB stands for least significant bit (LSB) coding is the simplest way to embed information in a digital audio file. Hashing for maintain the confidentiality of information, DES cryptographic algorithm has been used with Hashing algorithm. Audio steganography is a techniques used to transmit hidden information by modifying an audio signal is an imperceptions manner. This Paper provides a new way of securing the information to avoid hassle in transmission over network and implemented in MATLAB. The results show the security of workflow.

Keywords: Steganography, Cryptography, Hashing, Audio, LSB.