How can steganography files be identified?
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There can be no universal algorithm to detect steganography.
You can implement a series of tests against every known specific steganographic system in existence. But an attacker can use that as a test to develop a new form of steganography that bypasses all existing tests.
What you'll need to do is start researching all the various known forms of stenography in existence today, and provide tests that identify each one. Least Significant Bit is just one of dozens of known techniques.
Alternately, you can look to tools that others have developed. See outguess.org for a ten-year-old project that tried to do something like this. One novel thing the authors of stegdetect did was to be able to provide a set of plain images, then include samples of those images known to contain steganography. Using linear discriminant analysis, they are able to create a detection function based on the differences.
Steganography relies on the latent noise-to-signal ratio of the analogue source material. The "least significant" bits (actual bits will depend on codec) are overwritten by an encrypted stream of secondary "stego" bits such that the primary public content of the image is not destroyed or distorted with notable artefacts.
Hope it helps you :-);-)
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You can implement a series of tests against every known specific steganographic system in existence. But an attacker can use that as a test to develop a new form of steganography that bypasses all existing tests.
What you'll need to do is start researching all the various known forms of stenography in existence today, and provide tests that identify each one. Least Significant Bit is just one of dozens of known techniques.
Alternately, you can look to tools that others have developed. See outguess.org for a ten-year-old project that tried to do something like this. One novel thing the authors of stegdetect did was to be able to provide a set of plain images, then include samples of those images known to contain steganography. Using linear discriminant analysis, they are able to create a detection function based on the differences.
Steganography relies on the latent noise-to-signal ratio of the analogue source material. The "least significant" bits (actual bits will depend on codec) are overwritten by an encrypted stream of secondary "stego" bits such that the primary public content of the image is not destroyed or distorted with notable artefacts.
Hope it helps you :-);-)
mark as brainlest answer
Thank you
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