© 2004 Computer Academic Underground
Traditional Methods of Steganography
*Concealed Tattoos (under body hair)1
*Using newspaper articles / want-ads (with methods like our previous example) *Invisible / disappearing ink on the back of other script or in-between lines
*Microdots
*Spread-spectrum radio communications
•(List traditional methods as shown in the slide.)
•Microdots are tiny dots or holes drawn or punched into the paper.
•Our previous example is an example of a traditional method of steganography.
•Traditional methods have generally relied on the secrecy of the encoding method.  An excellent example of this is shaving a messenger’s head, tattooing a message on it, then waiting for the hair to grow back before sending the messenger.
•With traditional methods, once the system is known, it is trivial to detect thus breaking the steganographic system.