steghide

Steganography tool for JPEG, BMP, WAV and AU file formats. More information: https://manned.org/steghide.

• Embed data in a PNG, prompting for a passphrase:

steghide embed {{[-cf|--coverfile]}} {{path/to/image.png}} {{[-ef|--embedfile]}} {{path/to/data.txt}}

• Extract data from a WAV audio file:

steghide extract {{[-sf|--stegofile]}} {{path/to/sound.wav}}

• Display file information, trying to detect an embedded file:

steghide info {{path/to/file.jpg}}

• Embed data in a JPEG image, using maximum compression:

steghide embed {{[-cf|--coverfile]}} {{path/to/image.jpg}} {{[-ef|--embedfile]}} {{path/to/data.txt}} {{[-z|--compress]}} {{9}}

• Get the list of supported encryption algorithms and modes:

steghide encinfo

• Embed encrypted data in a JPEG image, e.g. with Blowfish in CBC mode:

steghide embed {{[-cf|--coverfile]}} {{path/to/image.jpg}} {{[-ef|--embedfile]}} {{path/to/data.txt}} {{[-e|--encryption]}} {{blowfish|...}} {{cbc|...}}