© 2004 Computer Academic Underground
Modern Methods of Steganography
*Use the properties of the media itself to convey a message
*Digitally embedding messages in other media, such as:
*Plain Text
*Hypertext
*Audio / Video
*Still Imagery
*Network Traffic
•When most people think of modern methods of steganography, they consist of ways to digitally embed the message data into cover data, however those are not the only methods available.
•(List Modern Methods as shown in slide.)
•A goal of modern digital methods is that they attempt to only be detectible if a shared secret or key is known.  This is similar to the common understanding in cryptography that the security of a cryptographic system should lie solely in the key information because the protocol and algorithm should be assumed to be publicly known.  Like cryptography, you should assume that the steganographic protocol and algorithm are publicly known.