Symmetric Key Algorithms

18.2. Steganography

Steganography is similar to cryptography since it is used to achieve confidentiality. Steganography requires two items, a container and the data that will be hidden. Containers used include image, audio, video, or Office document files. The video, Steganography – Hiding Data inside Pictures or Sound files (6:16) provides a demonstration using a tool called Steghide.