Text Encryption Based on Biological Operations in Chaotic Image Hiding

Abstract

This paper presents a Central Dogma of Molecular Biology (CDMB) based text encryption and a chaotic based image steganography algorithm. CDMB based security systems have drawn the attention of many researchers for more than a decade and lots of work have been done in this direction, but still many gaps have been found in the evolutionary phase. The proposed work contributes to such a motive to improve the overall security of these steganography techniques. The proposed system mainly consists of three steps: Firstly a text to be hidden is encrypted as a series of proteins. Secondly, the host image will be scrambled using Fibonacci-Q Transform. Finally, the Gauss map is used to generate random numbers to determine the hiding location in host image. The PSNR and SSIM measures that are used for comparison and result analysis shows that the proposed scheme provide efficient level of security.