Support
Frequently Asked Questions (FAQ)

This page containssolution to knows problems and questions posed by many users. If you can't find the answer to your question here, you can send me an e-mail.
NOTE: Versions 2.x and 3.x of wbStego are no longer supported. If you experience problems with these versions, upgrade to the most current release.

General questions

1. Why should I use a tool like wbStego?
2. What about hiding something in a text?
3. Can I hide something directly in the text of an e-mail I send?
4. I would like to add a copyright information to my photos. Can I do this with wbStego?
5. I am currently using a cryptography tool (e.g. PGP or something similar). Should I use wbStego instead?
6. How much data can I hide in a file?
7. What about hiding data in grayscale bitmaps?
8. Will wbStego support hiding data in JPEG files or GIF files in future?
9. Can I hide an image in another image?
10. What happens if I hide something in the HTML code of my website?

Problems using wbStego

11. When I hide something in a text and view the output file with a text editor the file appears to be blank.
12. I want to hide data in 4 or 8 bit bitmaps. When wbStego checks the available space it seems to hang.

Issues concerning wbStego4open

13. What can I do with the source distribution? Can I redistribute it, use it in own programs?
14. I have fixed a bug in the wbStego code or added a new feature - will it become a part of the next wbStego distribution?
15. I have downloaded the source distribution. Where can I find documentation?


1. Why should I use a tool like wb
Stego?

When you are transmitting data, especially online, the privacy of this data can never be guaranted. To secure the privacy of this data, cryptography is used. But it has one big advantage: Everyone can see the fact that there is encrypted - and consequently private, interesting and important - data. Steganography hides this fact and does not seduce to try breaking the encryption.

2. What about hiding something in a text?

Hiding any data in a text is no problem with wbStego - as long as there isn't too much data to hide. There is not too much space to use in a text file, so the text has to be long or you can only hide small files. See also question 9.

3. Can I hide something directly in the text of an e-mail I send?

Currently there is not method that works well in all e-mail applications with hiding something directly in e-mail text. But you can send a text file that contains other data as e-mail attachment.

4. I would like to add a copyright information to my photos. Can I do this with wbStego?

Of course. wbStego offers a copyright information manager that allows you to do this in a very convenient way. In older versions you have to create a text file that contains all necessary information and hide it in the carrier file. The use of wbStego as a tool for adding copyright information is also discussed in a review at epinions.com.

5. I am currently using a cryptography tool (e.g. PGP or something similar). Should I use wbStego instead?

Not instead - but also. Steganography does not replace cryptography - it gives additional protection. The output of a good cryptography software seems to be a random sequence. If you hide this data it is nearly impossible to determine between the nearly random sequence of some bits in a bitmap image and the output of the cryptography file.

6. How much data can I hide in a file?

That depends very much on the type of the file. You'll find information about it in the program's help or in the wbStego carrier file information.

7. What about hiding data in grayscale bitmaps?

It works the same way than hiding data in colour images. But you should ba aware of the fact that grayscale images use less data per pixel and that's why you can hide less data in them. See also question 9.

8. Will wbStego support hiding data in JPEG files or GIF files in future?

NO, but if you are a Delphi/Kylix programmer, you can download the source distribution and add this functionality.

9. Can I hide an image in another image?

Of course you can. Its just a question of size: The carrier image has to be much larger than the image you want to hide (see question 6).

10. What happens if I hide something in the HTML code of my website?

The HTML pages will not change for the viewer. Your hidden information is embedded in the page but it will not influence rendering the page or any other information, e.g. meta information used by search engines. The hidden message will not be visible when viewing the source of the HTML page.


11. When I hide something in a text and view the output file with a text editor the file appears to be blank.

You are using a "non-standard" ASCII viewer. This problem has been reported with using the editor "EdiPad". It does not appear when using the compatible text encoding method.

12. I want to hide data in 4 or 8 bit bitmaps. When wbStego checks the available space it seems to hang.

Usually the program does not hang, but in can in some cases take very long until the amount of available space is determined for this kind of carrier files.


13. What can I do with the source distribution? Can I redistribute it, use it in own programs?

The source distribution is published under the GNU General Public License (GPL). You may redistribute the source distribution if you leave it unchanged. You may use the code or part of it in your programs, as long as you publish these programs under GPL as well.

14. I have fixed a bug in the wbStego code or added a new feature - will it become a part of the next wbStego distribution?

If you think that this feature may be useful for other users, feel free to send me the patch and I will include it in the next distribution or publish it as a path on this website.

15. I have downloaded the source distribution. Where can I find documentation?

There is a very short developer documentation, which is part of the distribution and available online here. It is very brief, and many things are missing. If necessary, send me an e-mail with your question, I will answer as time permits.


wbStego web pages © 1999-2004, last modified: Mar. 1, 2004.