A metaheuristic method to hide MP3 sound in JPEG image

摘要

VoIP is much in use these days as many applications over phone, tablet, and computers are available. The data in VoIP can be collected for further analysis or it can be intercepted. VoIP privacy and security is a major concern these days. This paper discusses an implementation of hiding a sound file in a digital image. This sound can be voice, VoIP data or a song. In this approach, an MP3 file was used with JPEG image for implementation. The rightmost k-LSB of pixels was utilized to embed MP3 bits into a pixel. The pixels are so chosen that the distortion in the image would be minimized due to embedding. This is implemented in such a way that makes it difficult to conclude about the existence of the hidden data inside the image. A metaheuristic technique Cuckoo Search was used to find most suitable solutions for minimization. The results are also compared with existing techniques of steganography.