Steganography is defined as the art of hiding information, data or messages in an image. The advantage of stegnography is that those who are outside the party even do not realize that some sort of communication is being done.
Steganography comes in different forms:
- Hidden information in Text Files
- Hidden information in Image Files
- Hidden information in Audio Files
- Hidden information in DNA
Six Categories of Steganography in Forensics
- Substitution system techniques
- Transformation domain techniques
- Spread spectrum techniques
- Statistical method techniques
- Distortion techniques
- Cover generation techniques
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