SECURE TEXT IN IMAGE STEGANOGRAPHY USING PIXEL-BASED ALGORITHM

Abstract

The art of encrypting a hidden message within a public message is known as steganography. Traditionally methods like LSB (least significant bit) modification, the five-modulus method and other algorithms have been utilized to encode a lower quality image into a higher resolution image via steganography. This research aims to implement a novel text in image steganography using pixel-based algorithms where the security of the text is enhanced by integrating encryption before embedding secret messages. We use the Chinese Remainder Algorithm (CRT) to cryptographically secure the secret message inside the image and the least significant bit algorithm to store the message inside the image. A novel method is propounded for the key generation of the CRT algorithm and the results have been studied and compared with the results of the methods in existing studies.