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GeoHot Releases dePKG - PS3 Firmware Package Decrypter


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184w ago - Despite retiring from the iPhone and PS3 scene shortly before PS JailBreak first surfaced (amid [Register or Login to view links] 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 [Register or Login to view links] / FwTool to Encrypt PS3 Firmware Package Files by [Register or Login to view links] / [Register or Login to view links] / [Register or Login to view links] / 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 [Register or Login to view links], 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 lan.st 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, [Register or Login to view links] Tweeted the following confirmation: "http://pastie.org/1419148 <== 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: [Register or Login to view links]

Little script to unpack the decrypted core_os pkg by anomaly:

[Register or Login to view links]
[Register or Login to view links]

From kamikatze, a Decrypted 3.41 CORE_OS_PACKAGE Extract Shell Script: [Register or Login to view links]




Stay tuned for more PS3 Hacks and PS3 CFW news, follow us on Twitter and be sure to drop by the PS3 Hacks and PS3 Custom Firmware Forums for the latest PlayStation 3 scene updates and homebrew releases!

Comments 88 Comments - Go to Forum Thread »

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Luckluka's Avatar
#83 - Luckluka - 184w ago
Ok, i'll upload a PATCH later... you will run it on your pc, and it will patch your 3.50 PUP

It's actually easy to make one, there is a program posted on ps3news called "gpup" It extracts and packs firmwares (doesn't sign them), it will extract the files from PUP. So i extracted 3.41 and 3.50 Firmware and i opened the "update.tar" that it gave with 7zip.

I dragged and dropped the 3.41 CORE_OS_PACKAGE on the 3.50 "update.tar" using 7zip and i repacked it using gpup, then i flashed it through service mode(Lv2diag.self way)

After that, it blinked green and turned off as normal but then, i turned on the ps3, and i get YLOD and then it blinks red nonstop

UPDATERLOG shows everything went ok!

Maybe it was a coincedence, ill try a reflow

whinis's Avatar
#82 - whinis - 184w ago
I think I read that certain bad firmware updates cause a ylod and it is essentially a full brick.

BwE's Avatar
#81 - BwE - 184w ago
i doubt its that easy to make a hybrid 3.41/3.50 firmware etc.

but as for giving anybody a ylod - HIGHLY unlikely

givemethefile's Avatar
#80 - givemethefile - 184w ago
Could you upload your PUP so a brave soul like sk group can try it. It does seem like your PS3 died at a very coincidental moment, if the hybridized FW works, then we maybe able to mix 3.55 with 3.41 and keep the best of both worlds.

TheBlack's Avatar
#79 - TheBlack - 184w ago
Don't think so. As I read the slides/see the videos from failoverflow, the keys for lv1/lv2/apploader are different. So, no apploader keys yet (to decompress self's). Correct me if I'm wrong.

And, we don't know how to bypass the chain of trust yet.

We need to change the loaders, or bypass them. Just setting up 3.55 apploader on 3.41 doesn't work too, 'cause 3.55 requires every loader from 3.55 and so on.

We still need more info to come public
thank you for the explanation.

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