A PHP program to compress, encrypt, and hide messages inside of PNG files.
PHP
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README.md
form.php
steg-img.php

README.md

BuriedUnderTheNoiseFloor

A PHP program to compress, encrypt, and hide messages inside of PNG files.

For those of you who would rather use JavaScript.

Write up is at my blog.

If anyone is feeling generous, my bitcoin address is 17da1aqXEhdqMkbEq66nc2n5DeAnrnNbsK. Donations help me justify spending time on my computer to my wife. :-)

Comments and issues posted on github will be answered. Pull-requests are always welcome if you've fixed or enhanced something.

Class source is well commented. The form.php file is the test fixture that the user interacts with, but it is not required. The class is stand-alone. The test fixture is mostly valuable as a usage example, as all of the class's major features are broken out into options.

Additionally

  • There must be a directory with the appropriate permissions named uploads in the same folder as form.php

  • GD must be installed and enabled

  • Mcrypt must be installed and enabled


License is MIT, so be free.

---J. Ian Lindsay