openstego
TLDR
Embed data in image
$ openstego embed -mf [secret.txt] -cf [cover.png] -sf [output.png]
Extract hidden data$ openstego extract -sf [stego.png] -xd [output_dir]
Embed with password$ openstego embed -mf [secret.txt] -cf [cover.png] -sf [output.png] -p [password]
Generate signature$ openstego gensig -sf [image.png] -sgf [signature.sig]
Verify watermark$ openstego checkmark -sf [image.png] -sgf [signature.sig]
SYNOPSIS
openstego command [options]
DESCRIPTION
OpenStego is a steganography tool for hiding data within images. It can embed secret messages in cover images and extract them later, with optional encryption.
Also supports digital watermarking for image authentication.
PARAMETERS
embed
Hide data in image.extract
Extract hidden data.gensig
Generate signature.checkmark
Verify watermark.-mf file
Message file.-cf file
Cover file (input image).-sf file
Stego file (output image).-p password
Password.-xd dir
Extract directory.
SUPPORTED FORMATS
$ Cover images: PNG, BMP, GIF, JPEG, WBMP
CAVEATS
Java required. Large messages need large cover images. JPEG quality loss affects data. GUI also available.
HISTORY
OpenStego was created by Samir Vaidya as an open-source steganography application supporting multiple algorithms.
