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Guide to Compile PSN NPDRM Games for PS3 Custom Firmware


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155w 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.










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 8885 Comments - Go to Forum Thread »

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TwistedJay's Avatar
#540 - TwistedJay - 148w ago
Look up Imgburn and download it and install it, burn at 4x speed works fine for me. The Japan and Euro. games work to on 3.55

right click on the cue file and burn with Imgburn.

PS3 News's Avatar
#539 - PS3 News - 148w ago
Here is one from not too long ago that may be of use: [Register or Login to view links]

There is also a Using PSX Eboots (to Save CD's) Guide from around the same time: [Register or Login to view links]

NTA's Avatar
#538 - NTA - 148w ago
Is there a tutorial for burning psx backups also? I couldn't seem to get mine to work. Probably just needed to burn the .bin file alone instead of including the .cue

TwistedJay's Avatar
#537 - TwistedJay - 148w ago
I'm not here to fight or poke fun or even mess things up for anybody. All the links I have posted are PS1 except for 1 PSN game that I ran across. As for the Game info Most of that was copied from the places where I found them . For some it would help to be able to have some info about the game even if it is not my own comment.

Besides what is the difference in posting a link to a game that is not your own and copy and pasting comments that are not your own. I am aware what this thread is about I have followed since some time after it started. I have not seen any new links for games in a few days so I posted stuff in here so you guys can have something to play on your ps3 till then thanks to Multiman for his PS1 Emulator working. PS1 Back ups are able to play on PS3 For those of you who don't know. So My links have every thing to do with ps3.

I think someone here is on the wrong site. I guess I don't feel so bad posting in the wrong thread as this user post put downs on the wrong site. You know who you are.

Bartholomy's Avatar
#536 - Bartholomy - 148w ago
Thanks a lot, but don't confuse this thread for a Retrogaming thread, next time

p.s. it's not clear which version are those disks. PS? Saturn? PSN?

And write your own idea of this game, don't copy paste from wikipedia, thanks.

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