Protect your homebrew applications with DAS

Posted Nov 23, 2006 at 5:35AM by QJ Staff Listed in: Homebrew Applications Tags: Dark-AleX, Exploit, Hex, Sony, xart
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PSP


With some people trying to rip off the homebrew scene, pretending to be Dark_Alex or some of our other respected devs, Xart from our forums has come up with a great new idea to prevent people ripping off others work. Xart has developed a powerful, fast Data Array Scrambling (DAS) system to protect your homebrew games and applications from hex editing and others stealing credit from your hard work.

This is an example of an encryption technique and it not a yet full release. For this Xart has used his xLoader application. It's a proof of concept to show just how quick encryption can be done to protect your work.

Just download the application and press circle to encrypt image using the DAS System, then press square to decrypt the image. Here's what xart said about his homebrew encryption example:

If you have looked at the example you will see that just a splash encrypted screen is enough to protect your work, just place text as part of the image and encrypt it, and then include the encrypted image in your homebrew with the key to decrypt it, the key can be encrypted as well to stop hex editors being used to find the key to decrypt the image.


As xart has stated, should homebrew developers now be encrypting their work like Sony so that they have to decrypt them in order to see how exploit code for running homebrew works? As we already know, it isn't impossible to decrypt files, but it will certainly give Sony headache doing so. Get the example below and join the intense discussion in our forums!

Download: [Data Array Scrambling (DAS) encryption example]
View: [Forum discussion thread]

 
 
 

Comments

by - 2006-11-23 05:54:02
idk

Cool release:)
by axelixc - 2006-11-23 06:32:05
Cool !

Well done. It's time to give sony a back slap. Great job. Add on multiple encryption layer would be better.
by - 2006-11-23 06:45:41
Nothing to Sony

I'm sure Sony has debuggers that can dump the unencrypted code as it runs.
by - 2006-11-23 09:44:32
ill be the butt hole

sorry but i dont like this......since homebrews are illegal anyway, i dont see why coders wont let others mod their apps since their not owned by no one to me....
by - 2006-11-23 11:11:04
homebrew isn't illegal

Homebrew isn't illegal. ISO's are. It's just that the PSP isn't intended for homebrew, and if anything wrong happens writing to flash, warranties don't cover it.
by - 2006-11-23 16:01:44
...

Not illegal you Fu-Cken idiot
by - 2006-11-23 18:51:00
...

ps3news ;)
by - 2006-11-24 02:38:06
gkjgjhg

eat poop
by - 2006-11-24 07:16:27
illegal

Homebrew apps are not illegal, Sony just doesn't like them
by - 2006-11-24 08:31:37
Poop

Poop
by - 2006-11-24 08:50:27
dark alex

no1 respects him hes a failure id take a dump on his face if i met him
by - 2006-11-24 09:04:30
*smack*

You idiot. You have no idea what you are talking about. Get off our planet.
by - 2006-11-29 20:32:45
2nd smack

research before you call someone a failure, you probably downloaded a bricker from the fake dark alex and didnt even read the article above

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