Posted: January 8, 2008 in digit - Little Helpers
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Steganography software is the digital equivalent of invisible ink. It lets you embed data inside other files. Secret data, of course. So why use steganography—why not just ZIP your files with password protection ? Well, when you have a password-protected file of any sort, here’s something to be explained if and when someone (like your mom or boss!) notices it. (“Hmm. So you’re using passwords these days, are you? Tell me more…”) Besides, passwords aren’t completely safe. With steganography, no-one will even know there’s something hidden! Using the technique, you hide your file inside another, known as the carrier file. Hide In Picture is once such tool: you can embed files into GIF and BMP images. You retrieve your data from the carrier file just by clicking Extract in the program. You can also password-protect the carrier file if you’re so paranoid you think only you’ll survive, and then embed that into another file… Find Hide In Picture on this month’s CD or download it from A similar program is wbStego4open. This open-source, cross-platform tool allows you to embed data in BMP, text, HTML, and PDF files! Get this one from There are stego programs that allow you to embed data in zipped archives too. wbStego4open has two modes— Wizard and Flowchart. The latter allows users we call “advanced” to embed / extract data, passwordprotect files, and compress the carrier file, all in one window.  Steganography opens up a cool one top-corporate-boss-to-another way of exchanging secret messages via e-mail. The sender and receiver need to have the same software installed, of course.

-Asfaq Tapia

  1. achmadz says:

    I have implemented another way to hide any type of file inside mp3 file without changing its size and sound quality. My application name is mp3stegz. It’s free of charge and source code is included.
    It is different from mp3stego since my application directly access mp3 file(not wav file) per byte.
    If you interested, you may check at my blog:

    The minuses is: can be easily detected that an mp3 contain hidden message. However, I’ve encrypted the hidden file using RC4 algorithm.

    The downloaded file is including source code in Borland Delphi 7.

  2. Hi, whats up? How is it going today? It’s just that i enjoy your website so much, and that i believe you could start earning a bunch of money with it. I have a few thriving blogs that I started making some money from recently. They are using something called a content hider widget, that makes visitors fill out a small survey inorder to get access to special content or to download programs or tools that they need. And every time they do a easy survey i make around two dollars. Pretty cool eh..? Been making alot more from it than adsense. Feel free to contact me, or you can check it out through my refferal link., Best Regards, Hennrik J. Hanson

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