Develop steg module for popular image formats

The module should at least support embedding in:

  • JPEG
  • GIF
  • PNG

Format. At the first step we don't want anything fancy, we only keeps the header to be legit and override the body.

This is useful when we use a random web server as our payload server as images are responsible for most of non-streaming content of the web.

To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information