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Steganography is a science that pertains to the art of concealing data in a communication in such a way that only the sender and receiver know of its existance and method of access. The platform used for transmission can be anything from a paper document to a digital file. Additionally, it is more common than not to encrypt the hidden data whenever possible such as with digital files or images.
Algorithms and Tools
Hide In Picture is an open source stegnographic tool. http://sourceforge.net/project/showfiles.php?group_id=42816&package_id=34960&release_id=67439
M5, by Andreas Westfeld, is both a steganographic tool and algorithm. It hides information in JPEGs. An attack was developed by Jessica Fridrich, Miroslav Goljan, and Dorin Hogea. Information can be found at http://wwwrn.inf.tu-dresden.de/~westfeld/f5.html .
Publimark hides text in audio files. http://perso.orange.fr/gleguelv/soft/publimark/index.html
- Steganography Analysis and Research Center The Steganography Analysis and Research Center is a Center of Excellence within Backbone Security focused exclusively on steganography research and development of steganalysis products and services.