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The Steganography brings you the capability of concealing files within various forms of data. The envelop to most applications of steganography is digital data, such as a scanned image, or a sampled sound. By making subtle alterations to sampled data it is possible to conceal information while retaining nearly all the content of the original sample.
Users of steganography can encrypt their information using the strongest state-of-the-art encryption algorithms currently known, so that even an enemy cannot be completely sure data is hidden unless he has your secret passphrase.
You could use steganography to conceal private or confidential information that you don't want to fall into the wrong hands. You could use it to send information to another individual via a broadcast network such as Internet. Alternatively you could use steganography to verify your copyright over an image or a song by storing an encrypted copyright statement within it and extracting it in the event of a dispute.
In short, steganography allows you to place private information in an inconspicuous 'envelope' that will not arouse suspicion.
adapted by Rafal Swiecki, p. eng. email
This document is in the public domain.