steghide

Steganography tool for JPEG, BMP, WAV and AU file formats. More information: https://github.com/StefanoDeVuono/steghide.

• Embed data in a PNG, prompting for a passphrase:
  steghide embed --coverfile {{path/to/image.png}} --embedfile {{path/to/data.txt}}
• Extract data from a WAV audio file:
  steghide extract --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 --coverfile {{path/to/image.jpg}} --embedfile {{path/to/data.txt}} --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 --coverfile {{path/to/image.jpg}} --embedfile {{path/to/data.txt}} --encryption {{blowfish|...}} {{cbc|...}}