Pixel swapping and parity based image steganography algorithm

In the era of digitalization, Most of the data is transmitted through the internet. Digital data security is a prominent issue for this century. There is the variety of techniques used to protect data during communication. Among all of them, apple of my eyes steganography method plays a significant role in digital communication. Steganography method reduces a chance of information detection while data transmission. Steganography is the art of hiding the existence of a message between the sender and intended beneficiary. Steganography has been used to conceal secret information in various types of files, such as digital images, audio and video. In steganography, the part of information has embedded in the carrier in such way that it is not perceptible to the world and appears as normal. However, in cryptography, the message is twisted to make it tremendously tricky so that it becomes a hard nut to crack even for experts. In this paper, I have presented a unique design of image steganography algorithm based on parity and substitution for gray scale and color image. It has numerous advantages compare to others techniques. Moreover, it can withstand with all kind passive steganalysis. For steganalysis, I used visual attack, LSB palne attack, machine learning technique and χ2 test.