Steganography is the practice of encoding secret information in a manner such that the very existence of the information is concealed. Throughout history, many steganographic techniques have been documented,Including the use of cleverly-chosen words, invisible ink written between lines, modulation of line or word spacing, and microdots [1,2,3].Usually the secret information is concealed by the use of an innocuous cover as to not arouse Suspicion if hostile agents discover the cover. As an example, the cover text: I’m feeling really stuffy.
Emily’s medicine wasn’t Strong enough without another febrifuge.
