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|...