Chaotic cipher based spatial domain steganography with strong resistance against statistical attacks

Steganography is a form of secret communication in which a secret message (text, image) is hidden inside a carrier message (text, image). While in cryptography, the goal is to make everything unreadable to the ones who do not know the password, in steganography, on the other hand, the goal is to camouflage a message inside an apparently innocent carrier. In other words, while cryptography conceals the message itself, steganography conceals the existence of the message. Since, this form of communication potentially attracts unsavoury people to secretly hide messages in plain sight, there have been many efforts on different fronts to detect the possibility of the existence of steganography in images and other multimedia objects. Most of such algorithms use different statistical analysis based attacks for detecting potential cases of steganography. In light of this, the present methodology demonstrates the development of a set of algorithms designed to implement a spatial domain steganography technique that is capable of withstanding such attacks. The merits of the present methodology has also been assessed quantitatively.