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December 31, 2010 // 1:33 am - Despite retiring from the iPhone and PS3 scene shortly before PS JailBreak first surfaced (amid rumors from one reseller that appear to point in his direction), today GeoHot has reappeared and shared dePKG which is a PlayStation 3 Firmware Package Decrypter!

Downloads: dePKG PS3 Firmware Package Decrypter / dePKG r1 PS3 Firmware Package Decrypter by daGraveR / dePKG (Pre-Compiled x86_64 and x86) by daGraveR / dePKG (Pre-Compiled Win32) by XVortex / dePKG (Pre-Compiled Win32) and Dissect_CoreOS by cory1492 / Decrypted CORE_OS PKG UnPack Script by anomaly / CORE_OS_PACKAGE.pkg Extract by talruum / Guide: Extracting dev_flash from PS3 Firmware Updates by netkas / FwTool to Encrypt PS3 Firmware Package Files by waninkoko / PS3 Firmware 3.41 Decrypt / PS3 Firmware 3.50 Decrypt / FwTool (Pre-Compiled) by evilsperm / PS3 PUP Update File Extractor/Creator and PS3 PUP Update File Extractor v2 by KaKaRoToKS / PS3 Decrypt Tools (Windows) / PS3 Firmware Toolbox v1.0 and PS3 Firmware Toolbox v1.1 by Chossy / PS3 Decrypt SELF by GFK

In his post, GeoHot simply stated the following, to quote:

"A Little Gift for the Scene
#1419148 - Pastie

Decrypt pkg files computer side.
Mad props to fail0verflow"

Additionally, cory1492 states the following there: "CORE_OS_PACKAGE is NOT a .tar, it's a flash image - to extract it's contents you need to parse it out... a really shoddy/quickly made win32 built extractor for CORE_OS_PACKAGE is attached. Drag and drop your decrypted CORE_OS_PACKAGE onto the exe and it will extract the binaries inside (keep in mind most everything inside it is crypted, it contains the lv1/lv2 selfs and some spu modules and the like.) There shouldn't be anything in there that would prevent a very fast port to *nix (and many thanks go to graf_chokolo for partially documenting the structure on his hv reversing page at wiki.)

Also did a msys build of the depkg for windows which doesn't rely on external code, source included along with all the COPY notices that go with the aes implementation I used (also I'm running it on win7 x64 from the command line without issue, though it is a 32bit targeted build.)"

As a follow-up, Mathieulh Tweeted the following confirmation: " <== thx geohot /me whistles"

To quote from PSGroove: "The app is very useful for devs, that are planning to look into Sony's official firmware files. dePKG is a linux app, that will decrypt PKG files (not to be confused with PSN PKG files), that are within PS3UPDAT.PUP files.

This will allow devs to take a look at files such as CORE_OS_PACKAGE.pkg, from the convenience of their PC. Previously, the only way to take a look at these files, was via graf_chokolo's method, which utilized the PS3. Geohot's app is ready to be compiled and includes the necessary decryption keys."

The PS3 Firmware Package Decrypter source code is linked above, and also can be found below as follows:

Little script to unpack the decrypted core_os pkg by anomaly:

From kamikatze, a Decrypted 3.41 CORE_OS_PACKAGE Extract Shell Script:

GeoHot Releases dePKG - PS3 Firmware Package Decrypter

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#42 - compound - December 31, 2010 // 1:07 pm
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looks like the same issue i'm having with my win compile of it. have you tried the bluetooth package? that seems to unpack fine.

#41 - datalogger - December 31, 2010 // 1:03 pm
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Quote Originally Posted by CodeKiller View Post
i'm not sure, but can it be spu/spe code?

The contents look to be standard ELF format, up until the decryption seems to fail.

It's not just .pkg file it trys to decrypt, you can pass it anything from the PUP and it works on it. (to a point)

[Register or Login to view code]

Time to start looking at the source and see what's up with it...

#40 - compound - December 31, 2010 // 1:00 pm
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Quote Originally Posted by Ihatecompvir View Post
Sure, source files would be appreciated. I have Visual Studio on my PC.

whole vis studio project here, may require a bit of messing about to get it to work on 2010 as it is a 2005 solution.

#39 - crckmc - December 31, 2010 // 12:59 pm
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good work compound but i get the same error (Side-by-Side..)

i have visual studio 2010 so if you would share your source i can give it a try

#38 - Ihatecompvir - December 31, 2010 // 12:52 pm
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Sure, source files would be appreciated. I have Visual Studio on my PC.

#37 - compound - December 31, 2010 // 12:48 pm
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Quote Originally Posted by Ihatecompvir View Post
I've tried compatibility mode, installing that, everything. It just does not want to function.

Do you have visual studio? can give you my source files and try compiling on your pc?

for some reason, extracting the bluetooth file works fine, but any other files output corrupt.

#36 - Brenza - December 31, 2010 // 12:45 pm
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Please can someone briefly explain what this means?

#35 - Ihatecompvir - December 31, 2010 // 12:45 pm
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I've tried compatibility mode, installing that, everything. It just does not want to function.

#34 - compound - December 31, 2010 // 12:36 pm
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Quote Originally Posted by Ihatecompvir View Post
I have Visual Studio 2010 Runtime Libraries and it gives me the "Side-by-side configuration is incorrect"

I'm running Windows Vista.

try this one, i'm using vis studio 2005 on win 7.

the pkg you supplied extracts ok, but crashes on the coreos package for some reason.

if that doesn't work you may need the 05 sp1 redist also

#33 - kevorkian - December 31, 2010 // 12:35 pm
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ok. Now we can decrypt. And with the same key generate an encrpted pkg file signed? pkg pup? or =? For now we have only the decrypter, right?

QUESTION to 3.55 install signed pkg. Can we use PSN links to install modified pkg or these link are unique to determined pkg signed?