Hiding Messages in Audio using Modulus Operation and Simple Partition

Abstract

Today's information technology tools allow people to share personal data and information through online media. Data security techniques are also developed to protect confidential messages that are only intended for certain parties, one of which is by embedding those data in a specific medium. The hiding method proposed in this study uses a simple partition to split the 16-bit audio cover file into two groups of the same length. The simple partition technique is applied to improve the quality of the resulting stego file. Furthermore, it is also developing an adaptive modulus operation calculation method, whose implementation on the difference of sample can increase the embedding capacity of the secret messages. The final result of the proposed method shows that all secret messages at the 700 kb payload file size can be successfully embedded, and the PSNR can be maintained up to 120.55 dB.