Steganography, derived from the Greek, literally means, “Covered writing”. It is the
science of hiding information in ways that prevent the detection of hidden messages. Digital
technology gives us new ways to apply steganographic techniques, including one of the
most trickery that of hiding information in multimedia likes image, audio and video. It
includes a huge array of secret communications methods that conceal the message’s very
existence. These methods include invisible inks, microdots, character arrangement, digital
signatures, covert channels, and spread spectrum communications. Steganography and
Cryptography are cousins in the spycraft family. Cryptography scrambles a message so it
cannot be understood while Steganography hides the message so it cannot be seen. A
message in ciphertext, for instance, might arouse suspicion on the part of the recipient
while an “invisible” message created with steganographic methods will not.
The purpose of the presented white paper is to provide momentary information in
the area of Steganography with illustrations of some methods for Steganography. Providing
and evaluating steganographic methods with experiments. In this article image files are
discussed and how to hide information in them