  The art of information hiding has been around nearly as long as the need for
covert communication. Steganography, the concealing of information, arose early
on as an extremely useful method for covert information transmission.
Steganography is the art of hiding secret message within a larger image or
message such that the hidden message or an image is undetectable; this is in
contrast to cryptography, where the existence of the message itself is not
disguised, but the content is obscure. The goal of a steganographic method is
to minimize the visually apparent and statistical differences between the cover
data and a steganogram while maximizing the size of the payload. Current
digital image steganography presents the challenge of hiding message in a
digital image in a way that is robust to image manipulation and attack. This
paper explains about how a secret message can be hidden into an image using
least significant bit insertion method along with chaos.
