A Steganography Technique based on chaos for Pseudo-Random LSB Images
Deepak Sinwar · International Journal for Research in Applied Science and Engineering Technology · 2018
Steganography is the science of camouflaging message, video, image or any other data within another file, which can be any multimedia file. The purpose of this technique is to hide the existence of the message in cover file from unauthorized party. It takes the advantages of limited perception of human to observe subtle changes in images, sound etc. Here our concern is about digital images as they are more frequent over the internet. In spy/hacker world Steganography and Cryptography are cousins. Cryptography alters a message so it cannot be understood whereas Steganography hides the message so that it cannot be read. There are lots of Steganography techniques based on digital images like LSB (Least Significant Bit), in this techniques some bits of digital cover image get inverted when some input or alteration in image element. Analyze pseudo random techniques and to propose a Pseudo-Random LSB Steganography technique where chaotic map is used to generate random numbers. In the proposed mechanism instead of using pseudo random generator which is less variant we have used chaotic maps technique to obtain the random sequence