Exploring steganography: Seeing the unseen
Sushil Jajodia1998
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Abstract
Steganography and cryptography are cousins in the spycraft family. Cryptography scrambles a message so it cannot be understood. Steganography hides the message so it cannot be seen. A message in ciphertext, for instance, might arouse suspicion on the part of the recipient while an “invisible” message created with steganographic methods will not. In this article we discuss image files and how to hide information in them, and we discuss results obtained from evaluating available steganographic software.
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