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How to decrypt a prx

 
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coolkehon



Joined: 20 Oct 2008
Posts: 355

PostPosted: Fri Feb 20, 2009 4:41 am    Post subject: How to decrypt a prx Reply with quote

I want to use prx's from other applications like maybe irshell or other things i would just like to see what functions their using and so on and maybe use some functions from the ofw firmwares how do i decrypt the prx so that i can use it and also i heard something about decompressing them to how do i do that
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slasher2661996



Joined: 22 Feb 2009
Posts: 91
Location: Melbourne Australia ZOMG

PostPosted: Sun Feb 22, 2009 9:46 am    Post subject: Reply with quote

... prxdecrypter.
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NoEffex



Joined: 27 Nov 2008
Posts: 108

PostPosted: Sun Feb 22, 2009 10:11 am    Post subject: Reply with quote

To decompress a gzipped one:

Delete the first 0x150(or until the 0x150 mark) then rename to .gz. Works like a charm for me.
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Dariusc123456



Joined: 12 Aug 2008
Posts: 394

PostPosted: Sun Feb 22, 2009 11:19 am    Post subject: Reply with quote

Then after those things other people say, you can disassemble them with prxtool. Its a good tool to use to find the commands in prx files
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jean



Joined: 05 Jan 2008
Posts: 489

PostPosted: Sun Feb 22, 2009 6:39 pm    Post subject: Reply with quote

If you already have documentation, you don't really need to decrypt a prx to use it...
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Torch



Joined: 28 May 2008
Posts: 842

PostPosted: Mon Feb 23, 2009 12:42 am    Post subject: Reply with quote

From the PC side you can use one of many tools. PRX recomp, PRX compressor (it can decompress), etc.

For official PRX you HAVE to use prxdecryptor.
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jean



Joined: 05 Jan 2008
Posts: 489

PostPosted: Mon Feb 23, 2009 1:08 am    Post subject: Reply with quote

mmhh.. i think i misunderstood the sentence
Quote:
I want to use prx's from other applications like maybe irshell or other things

Let's say i meant :you dont' have ALWAYS to decrypt a prx to use it...
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