Steganography has been used for over 2500 years to hide secret messages. The paper explores steganography's history from ancient times through modern digital applications. It discusses early examples like Johannes Trithemius' steganographic treatise in the 15th century. Modern uses include microdots, digital images, audio, and digital watermarks for copyright protection. Terrorist groups may use steganography but there is no public evidence yet. Steganography continues to evolve with technology while attackers work to defeat new techniques.
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Steganography past-present-future 552
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Steganography: Past, Present, Future
Steganography (a rough Greek translation of the term Steganography is secret writing) has been used in various
forms for 2500 years. It has found use in variously in military, diplomatic, personal and intellectual
property applications. Briefly stated, steganography is the term applied to any number of processes that will
hide a message within an object, where the hidden message will not be apparent to an observer. This paper will
explore steganography from its earliest instances through potential future application.
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