Practical 5 — Steganography

Aim
Hide and extract a message in an image using the lab's steganography tools.

OPENSTEGO
1. Launch OpenStego (the practical uses its JAR application).
2. Choose the data-hiding option; select the message file and cover image.
3. Save the output image containing the hidden message.
4. Choose extraction, select the encoded image, and save/read the extracted message.

STEG SOLVER
1. Open the hidden-text image in Steg Solver.
2. Inspect available analysis levels/options.
3. Use the data-extraction analysis and save the recovered text.

Key point: Compare the original message with the extracted output.
