Wednesday, February 17, 2016

OpenStego moved to Github

OpenStego source repository is now moved to GitHub. SourceForge site is still up, but there won't be any updates in future there. Please use GitHub for issue reporting too.

Sunday, July 26, 2009

www.openstego.info

I recently bought the domain name www.openstego.info. It currently points to OpenStego Homepage on SourceForge.

Saturday, July 4, 2009

OpenStego article/software in Japanese Magazine

I came to Tokyo recently. One day at leisure, I was just searching for sites which had mention of OpenStego, and guess what - I saw one Japanese Magazine "Linux Nikkei (Linux日経)" website mentioning OpenStego in the "Table of Contents" of their July edition.

I went and bought it at the earliest, and was pleasantly surprised to find that they had included OpenStego v0.5.2 in the DVD, and also a great 2 page article on the functionality. The article author has explained it in excellent details, alongwith good diagrams and screenshots. It is better than what I would have written to explain the functions.

The link for magazine article (in Japanese) is at:

Article can be downloaded for ¥158 only.

Great going. :)

After getting inspired by this act, I have translated OpenStego in Japanese. I have not released it yet, but once it is released, if your OS locale is Japanese, then OpenStego UI and command line help will be in Japanese.

Saturday, October 4, 2008

VLE distributed with c't Magazine

Few months back I had received a mail from the German c't tech magazine asking whether they can include my Vapour Liquid Equilibrium for Java (VLE) in their magazine's accompanying CD. I obviously said yes.

I got a surprise last week when I received the free copy of the magazine (issue number 17/2008) home delivered in India. The accompanying CD includes VLE v0.2. It was a bigger surprise to see the review of the software in the magazine along with a nice screenshot!

It is real joy know that people consider such amateur work to be worthy of distribution with magazine. Such things make spending personal time on open source software all the more worthwhile.

Wednesday, October 1, 2008

Added Debian Package for OpenStego for Easy Installation

Debian package for OpenStego v0.5.0 has been added in Sourceforge downloads.

Ubuntu (or any other Debian based distro) users can now just download that file and install by just double-clicking the icon for the downloaded ".deb" file. It can also be easily installed from command-line using:

$ sudo dpkg -i openstego-0.5.0-1.deb

Please let me know in case if anyone faces installation issues using this package.

Sunday, September 28, 2008

Support for Bulk Image Processing in OpenStego

OpenStego v0.5.0 has been released today, and it adds support to process multiple cover files in one go.

The "Cover File" box in the GUI now allows selection of multiple files. It also supports wildcard characters - '*' matches any number of characters and '?' matches exactly one character.

For example, if you want to embed a given message in all PNG files in "C:\test" folder for which the name starts with "image", then you can give Cover File value as:

C:\test\image*.png

This feature would be particularly useful when you are using OpenStego as watermarking solution. You can select all you images and embed your signature / copyright message in bulk.

Friday, March 14, 2008

Added RandomLSB algorithm support to OpenStego

Today, I released v0.4.2 of OpenStego. It has now support for one more algorithm - RandomLSB.
This is similar to the regular LSB algorithm except that instead of using Least Significant Bits of image in sequence, it writes in a pseudo-random order.

The random number generator is seeded using password hash. And so the sequence of bits written is dependent on the password.

This should now give a more robust method of embedding data, which will be difficult to detect using statistical analysis. The method is definitely slower compared to regular LSB algorithm, but is more secure.