Skip to content
Image steganography with AES encryption
Go
Branch: master
Clone or download
Permalink
Type Name Latest commit message Commit time
Failed to load latest commit information.
src Cleanup Apr 30, 2011
.gitignore Updated gitignore to ignore binary Apr 30, 2011
LICENSE Add LICENSE file (CDDL-1.0) Dec 8, 2012
Makefile Reorganized project Apr 30, 2011
README Updated readme Apr 30, 2011

README

Usage of gosteg:
  This application is used for PNG image steganography.  It can
optionally encrypt/decrypt the data using AES.  If no keyin file
is specified in encryption mode, a new key will be generated.
  An image can hold approximately three bits per pixel with this
steganography scheme.  There is a certain amount of overhead
for storing lengths, keys, etc.  Keep this in mind when choosing
an image size for embedding.

Options:
  --in       <file>   Input image (JPEG/PNG format)
  --out      <file>   Output image (PNG format)

  --embed    <file>   Embed data into the image from this file
  --extract  <file>   Extract data from the image to this file


  --crypt             Encrypt/decrypt the data (based on mode)
  --keyin    <file>   File containing Key, IV, and Next
  --keyout   key.dat  File to write new Key, IV, and Next
  --rotate            Rotate keys before encryption

Examples:

gosteg --in kitten.jpg --out kitten.png
  No steganography (just conversion to 64-bit color PNG)

gosteg --in kitten.jpg --out kitten.png --embed hideme.dat
  Embed hideme.dat into the PNG version of kitten.jpg and write it to kitten.png

gosteg --in kitten.jpg --out kitten.png --embed hideme.dat --crypt
  Same as above, except generate a new encryption key and write it to key.dat

gosteg --in kitten.jpg --out kitten.png --embed hideme.dat --crypt --keyin key.dat
  Same as above, except use the key from key.dat for encryption

gosteg --in kitten.png --out kitten.png --embed hideme.dat --crypt --keyin key.dat --rotate
  Same as above, except rotate the keys before use

gosteg --in kitten.png --extract hidden.dat
  Extract unencrypted data from kiten.png into hidden.dat

gosteg --in kitten.png --extract hidden.dat --crypt --keyin key.dat
  Extract data encrypted with key in key.dat into file hidden.dat
You can’t perform that action at this time.