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This isn't maintained at all, it was an experiment and a challenge to myself a few years back

What is it?

It's an AJAX, Node.JS steganography web app. It takes a picture and a file and if the file is small enough, it will do some magic and mix the 2 files together, hiding one inside of the other by using the lowest significant nibble (half a byte) in the blue part of each pixel.

How it works:

Magic. Look in node_modules/stego.js for all the hard nibble, bit and byte twiddling.

What are the dependencies? Your repo doesn't have them all!

You need Node.JS 0.6.7, I know 0.4.1 won't work because of a bug in Buffer class. You'll need Express and connect-form(which you can install that through NPM) as well as Imagemagick convert to do the image conversion.