http://status.nowherejezfoltodf4jiyl6r56jnzintap5vyjlia7fkirfsnfizflqd.onion/opsec/steghide/index.html
You should not rely on steghide for securing your data cryptographically (see the introduction to steganography ), and when in doubt you can separately encrypt the file before embedding, but you may still want to change the used algorithm. For this, simply use -e algorithm mode . You can list all available modes with steghide encinfo . So as example, to embed our previous picture using AES-256 in cipher feedback mode, you would use this: $ steghide embed -cf apod20240824.jpg -ef...