Steganographic Library for PHP

This is a basic steganographis library written for PHP. In its current form, the code will store the message in the red component of each pixel.

Requirements

This class makes extensive use of GD, so make sure that the GD extensions for PHP are installed and enabled.

Limitations

The only format supported thus far is PNG. More work needs to be done to support other, more popular formats.

TODO

• Basic encryption
• Find a better method for determining if a message is hidden inside an image. Currently, I store this information in the 1st pixel of the image
• Generate alternative methods for storing the data.
• Add support for JPEG images