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Author Topic: YASA (Yet Another Steganography Application)  (Read 13772 times)
hollowlife1987
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« on: December 30, 2007, 06:28:36 AM »

YASA is a small learning project made in C# using the .Net framework 2.0
YASA will take an source image in bmp, png or jpg format and hide any type of data inside of it and save as png

http://yasa.hollow-net.net



EDIT:
Tested YASA under Ubuntu 7.04 using Mono and it works perfectly fine. smiley
If a mac user with an intel and/or ppc cpu could please test using mono it would be greatly appreciated.

Ubuntu 7.04 running YASA

« Last Edit: December 31, 2007, 06:48:38 AM by hollowlife1987 » Logged
app103
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« Reply #1 on: December 30, 2007, 06:37:59 AM »

This is pretty cool.

How well would this work with a highly compressed jpg file that has the right amount of pixels to hide the desired file?

Would this result in an image that would have a much larger file size than the original image + the hidden file?
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hollowlife1987
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« Reply #2 on: December 30, 2007, 06:42:56 AM »

Yeah, converting from jpg to png will increase the file size quite a bit actually.
But if you take a regular png and add the data to it it shouldn't change the file size much if at all.
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Deozaan
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« Reply #3 on: December 30, 2007, 07:10:03 PM »

Neat! Here's one with hidden information inside!

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Veign
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« Reply #4 on: December 30, 2007, 07:38:23 PM »

That's kinda cool.  I wrote on that would let you hide simple phrases inside of an Image file but think your method of hiding a file is a much better idea.
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hollowlife1987
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« Reply #5 on: December 30, 2007, 07:42:33 PM »

Neat! Here's one with hidden information inside!
 (see attachment in previous post)
Nice hidden pic :-p

That's kinda cool.  I wrote on that would let you hide simple phrases inside of an Image file but think your method of hiding a file is a much better idea.
Thank, you if you ever want to algorithm on how its being done or anything feel free to ask.
As I said this is a learning project for me so I would more than be happy to share my knowledge gained by working on this. smiley
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hollowlife1987
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« Reply #6 on: December 31, 2007, 07:22:19 AM »

In my previous post in reply to app's i stated that the application should not be increasing the file size upon further testing i was wrong.
Keeping the file size near the same has been added to my todo list for this application.
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Veign
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« Reply #7 on: December 31, 2007, 03:18:15 PM »

Maybe we can work together on creating an online application to do this in PHP.  Might be an interesting thing...
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hollowlife1987
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« Reply #8 on: December 31, 2007, 05:47:22 PM »

Maybe, i know my friend Krishean who helped me with the algorithm made a php version from my code.
I've changed it a bit more since then but yeah a PHP or even ASP.net version Wink would be great also smiley
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RED_404
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Meh.

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« Reply #9 on: January 14, 2008, 10:53:24 PM »

Nice App



Edit: removed link to external image (http://www.dazoe.net/red/4k.png) which packs an exe file inside.

Sorry I put a 4k demo inside:http://www.pouet.net/prod.php?which=34526
« Last Edit: January 27, 2008, 06:35:59 PM by RED_404 » Logged
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