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Guide to Compile PSN NPDRM Games for PS3 Custom Firmware


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167w ago - Following up on the previous PSN game decryption news, today mallory has made available the PS3Tools NPDRM source code for reactivating PSN content followed by a brief guide from the included ReadMe file below for PS3 Custom Firmware users.

Download: [Register or Login to view links] / [Register or Login to view links] / [Register or Login to view links] / [Register or Login to view links] and [Register or Login to view links] (Compiled by nathanr3269) / [Register or Login to view links] by granberro

From the included PS3Tools NPDRM ReadMe file:

Based off of gitbrew's 215d8903bc86539ca1da53519e2ac10eeafc4c27 ps3tools. .git folder not included to protect senstive info about the author. Sorry about the messed up tabs, TAB = 4 SPACES 4 LYFE!!!

  • Add the files in the npdrm_keystuff folder to your ps3 keys folder.
  • Create a file with your console's 16 byte IDPS in the 'idps' file in your ps3 keys folder (e.g. ~/.ps3/idps).
  • Copy your PS3's exdata folder containing your act.dat and rif files to your ps3 keys dir (e.g. ~/.ps3/exdata/act.dat). Compile and have fun with your LEGALLY purchased NPDRM games!
  • Also works on free games without exdata/idps.

Apologies for any existing bugs in unself. Adding these changes to unself2 is left as an exercise for the reader.

Thanks:

  • fail0verflow for the orginal tools
  • JuanNadie for figuring out NPDRM
  • euss for his endless hours of work on the wiki

Why didn't you beat me to the punch, Team PS360? I didn't need to reverse a single instruction! It isn't that hard...

v2 info:

  • Added npdrm magic to unself2 and readself2
  • unself2 doesn't like the metadata section with type 3 in my game.
  • This section looks to be some kind of linking information. Here is a snippet: crt0190002crt1190002libaudio_stub190002libaudio_stub190002

I haven't yet looked around to see if this is type of section is documented anywhere.

v3 info:

Unself2 now ignores metadata sections of type 3 instead of aborting. Additional help with any remaining bugs would be greatly appreciated.

I'm sorry if everyone got the impression that these unself/readself modifications can, by themselves, "reactivate" your NPDRM content. These are just the first steps in the process. To those who say this is useless because you need act.dat and rif files: unless you can get unencrypted (debug) or easily decrypted (free, demos) PSN content, the only way to get the unencrypted files is by decrypting it with act.dat and the content's rif file.

There are no "crypto fails" here, proper decryption with the true keys is the only way forward. Using the NPDRM algo with the right keys is the only way to decrypt unless you let GameOS do it for you and hook into GameOS to either grab intermediate keys or dump decrypted content. Using hacks to restore the NPDRM decryption info to jailbroken PS3s is only a partial fix.

For instance, unless you patch vsh or set the SRTC to some time in the past, some content (even non-demos and non-trials!) expires until you log into PSN and reauthenticate. Sorry about your "technical difficulties", Team PS360. You should L2IRC.

Finally, from granberro comes PS3Tools NPDRM PKG Tools Fix V2 (npdrm-fix_v2) which includes changes, as follows:

I'd like to share with you my fork of failoverfl0w and geohot tools. I have fixed some bugs on fl0w tools and added all NPDRM stuff as well as mallory did.

What's different then?

  • unself (unself2 should not skip type 3 section IMHO) is able to save the key/iv used to encrypt the NPDRM and patch the eboot.elf for 3.41 consoles.
  • make_self_npdrm2 is able to encrypt elfs with the key/iv extracted by unself and, theoretically being accepted by OFW>3.55

With those tools, I've been able to "downgrade" LBP2 updates 1-4 and install them on a CFW 3.41.










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Comments 9187 Comments - Go to Forum Thread »

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#842 - jarppikarppi - 155w ago
jarppikarppi's Avatar
Not to sound picky, since tons of new PSN releases (go DUPLEX), but where's Castlevania Harmony of Despair? It's a great game (played a little on a friend's XBOX360), but still no show. I think I've asked this once before in here PS3News, but I only got a vague answer out of it? So, is Castlevania: HoD crackable or not?

Oh, and a happy New Year's Eve to everybody from Finland!

#841 - Natepig - 155w ago
Natepig's Avatar
Option 2 sounds like it would be the best.

#840 - smokyyuwe - 155w ago
smokyyuwe's Avatar
Not to mention a lot of older links need to be checked to see if they're still alive (I got about 120 dead by the time I reached page 8 or so).

#839 - cfwprophet - 155w ago
cfwprophet's Avatar
I think that this should go to pr0p0sitionJOE and 2 seems for me the best. If no one is interested in (JOE also not) in editing the thread i will do so.

#838 - PS3 News - 155w ago
PS3 News's Avatar
Quote Originally Posted by Natepig View Post
Boss I think a Psn Game Fix Repository is in order here. pr0p0sitionJOE has done a great job collating the links now they just need an easy to find home. That way new users won't have to sift through 100+ pages to find the links.

Well, this thread is basically just that... it's added to the "PS3 Sticky" in the NavBar as our PS3 Decrypted PSN Links for CFW so starting another thread would inevitably lead to the same result.

I do agree that we should find a way to organize them better though... here are a few ideas of mine:

1) If someone is willing to compile and maintain a "first post" with a full list, I can give them editing permissions for it... this way regardless of how many replies the thread may have the first post will always be the most current game links.

2) If people prefer a list in a thread of it's own with no replies (to keep things cleaner), we could do a new thread linked to this one with a "first post" containing the current full game list and lock the thread so people cannot reply in it and can continue replying in this one.

Either would work, assuming someone is willing to take on the task of maintaining it... the only thing I'd like to avoid is starting a new thread that allows replies since that would only bring us where we already are now.

If anyone wishes to volunteer, let us know and we will issue the proper editing permissions, etc!

 

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