Steganalysis
ABSTRACT
Data hiding has always been necessary. Encryption is a method used for most data communication in modern times but steganography has been used for years and is still being used to this date. The goal of steganography is to avoid drawing suspicion to the transmission of a hidden message. If suspicion is raised, then this goal is defeated. Discovering and rendering useless such covert messages is a new art form known as steganalysis. Stego object is the object with hidden data.
To discover such covert messages we are using two types of attacks generally known as known-cover attack and stego only attack.
In known-cover attack both the original and stego object both are available. Thus the difference between the two objects (images) can be calculated by image difference algorithm (difference between the color components). In stego-only attack only the stego object (image) is available.
Algorithm we are implementing is a stego -only......
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Approximate Word Count: 870
Approximate Pages: 4 (250 words per double-spaced page)
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