This container contains a script for performing batch steganography on files with steghide.

This would embed the file embed_file.txt into every .wav file of the /data directory contents in the container. The new _out.wav files will be created in an extra out folder which will be automatically created in the directory where the individual file is.

docker compose run app -e "embed_file.txt" -p "secret!password" -d "/optional/path/to/data/dir"

You can test if the steganography was successful with an extra -t argument:

docker compose run app -e "embed_file.txt" -p "secret!password" -d "/optional/path/to/data/dir" -t

This extracts the hidden content of all _out.wav files in the /data directory, compares the extraction with the original embed_file.txt and prints a result of the check. The extracted contents are deleted automatically afterwards, but some disk space is required for this operation.