danbruno.net

A Slashdot article this morning discussed the possibility of using steganography in Flickr images. (Short summary: steganography is encrypting data inside of pictures so that, with special software, you can hide a file inside a photo of your dog.) This guy has put up a test image with a PDF inside of it, and apparently it works fine.

There are some cool possibilities here. You could take pictures of a live concert and then encrypt MP3s into them, or conceal your resume into a self portrait, or simply put pictures within pictures to maximize your available bandwidth. The Mac utility PictureSpy, available free from Big Green Software, will encode messages or files into your pictures.