Steganography is the practice of concealing a file, message, image, or video within another file, message, image, or video.

About

Simple java script allowing hiding or revealing data in image files using Least Significant Bit algorithm.

Example

Before

Original image

After

Image with the hidden message: Very secret message!

How to use

Encoding

1. Prepare a container image (preferably .png)
2. Prepare a secret message
3. Encode java Steganographer <path_to_container_image> <path_to_message_text_file>
4. Steganographer should output an image file with hidden message

Decoding

1. Prepare an image with hidden message
2. Decode java Steganographer <path_to_image_with_hidden_message>
3. Steganographer should output a text file with hidden message

Author

Greg (Grzegorz) Surma

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