The term steganography comes from the Greek words for covered writing. If, as a child, you ever wrote an invisible message in lemon juice and had your friend hold it next to a light bulb in order to watch the message magically appear, you've used steganography.. . .
The term steganography comes from the Greek words for covered writing. If, as a child, you ever wrote an invisible message in lemon juice and had your friend hold it next to a light bulb in order to watch the message magically appear, you've used steganography.

When using steganography on a computer, you actually hide a message within another file. That resulting file is called a "stego file."

Before we build the ports, you should be aware that steganography is also capable of encrypting a message before it is hidden in a file. Depending upon your geographic location, you may be limited by legal restrictions regarding the strength of encryption protocols, or even if you're allowed to use encryption in the first place. You'll see an example of this if you go to the outguess web site.