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PS3 SCETool v0.2.7 by Naehrwert Updated, Adds Local NP License


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120w ago - Following up on his previous release, today PlayStation 3 developer naehrwert (with flat_z's help) has updated PS3 SCETool v0.2.7 which adds local NP license handling among the changes outlined below.

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scetool 0.2.7 [public build] (C) 2011-2012 by naehrwert
NP local license handling (C) 2012 by flatz

Setup:

  • /data/keys : Keyfile.
  • /data/ldr_curves : Loader curves (7744 bytes).
  • /data/vsh_curves : VSH curves (360 bytes).
  • /data/idps : IDPS as binary file
  • /data/act.dat : act.dat
  • /rifs/* : *.rif files
  • /raps/* : *.rap files

Keyfile format:

Keyset example:

NPDRM key(set) names:

  • [NP_tid]: Title ID OMAC1 key.
  • [NP_ci]: Control info OMAC1 key.
  • [NP_klic_free]: Free klicensee.
  • [NP_klic_key]: klicensee key.
  • [NP_idps_const]: IDPS constant.
  • [NP_rif_key]: rif key.
  • [NP_sig]: Footer signature ECDSA keyset.

Help text:

Version 0.2.7:

  • Added local NP license handling.
  • Added option to override klicensee.
  • Added option to disable section skipping (in SELF generation).

Regarding the PS3 SCETool Scripts (linked above): This is a nice little set of batch scripts that someone made to work along side SCETool.

Use the GETSELFINFO.bat to figure out what version your EBOOT (my copy of Resistance 3 was ver. 3.65) is which helped explain why some EBOOTs couldn't be modified. Don't forget to grab the Conent ID if you're changing the EBOOT from an update.

Finally, in related news keperfear has made a [Register or Login to view links] stating that you will need to have at least .Net 3.0 Framework installed to use it.




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 234 Comments - Go to Forum Thread »

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EiKii's Avatar
#14 - EiKii - 138w ago
so the scetool 0.1.2 version is released, i guess this is the version thats supposed to work with 3.56

Its great to see some devs working on the ps3 still

Download: [Register or Login to view links]

Below is a read out of Naehrwert's SCETool as well: [Register or Login to view links]


Also from naehrwert via Twitter:

  • scetool now supports compression of data sections!

EiKii's Avatar
#13 - EiKii - 138w ago
seems like naehrwert found that hes SELFs are working on 3.56. And are working on a update of scetool yet again (0.1.1 doesent make valids - twitter.com/#!/naehrwert/status/153570111750545408)

  • no it seems 3.56 doesn't check for it, only 3.56+
  • But not generated by version 0.1.1, I'll release a fixed one soon!
  • apparently NPDRM SELFs generated by scetool DO work on 3.56 lol
  • [Register or Login to view links]



lets hope this helps KaKa

smokyyuwe's Avatar
#12 - smokyyuwe - 139w ago
Today naehrwert (twitter.com/naehrwert) released an update to scetool. No new information was added.

For those interested version 0.1.1 can be found here: [Register or Login to view links]

miandad's Avatar
#11 - miandad - 139w ago
thx for info , when they release it .. !

and i'm noob dont know about reverse the eid.. can you ask them about Lv2diag.self signed for 3.60 or 3.70+ for downgrade?

PS3 News's Avatar
#10 - PS3 News - 140w ago
Here are a few quick updates from naehrwert (twitter.com/naehrwert) for those following:

  • haha just figured the eid3 algo, nice!
  • KaKaRoToKS and I added basic NPDRM support to scetool
  • SELF generation works now for SPU and PPU, except for compressing the data and NPDRM
  • added SPU SELF generation to scetool

Also from his site: nwert.wordpress.com/2011/12/24/individual-infos/

Individual Infos

One of the PS3′s console specific cryptography works as follows:

At factory time there is a console specific key generated, probably from a private constant value and a console specific seed. Maybe that’s the key used for encrypting bootldr and metldr. Fact is, that metldr stores another console specific keyset (key/iv) to LS offset 000000. That keyset is probably calculated from the first one. At factory time the isolated root keyset (how I call it) is used to encrypt the console’s “Individual Infos”, like eEID.

But not the whole eEID is encrypted the same way, special seeds are used to calculate key/iv pairs for the different sections. And not even that is true for every eEID section, because for e.g. EID0 another step is needed to generate the final section key(set). Each of the isolated modules using such an “Individual Info” has a special section that isoldr uses to generate the derived key(set)s.

But the generation works in a way, that the section data is encrypted with aes-cbc using the isolated root keyset, so it is not possible to calculate the isolated root keyset back from the derived key(set)s, because aes shouldn’t allow a known plaintext attack. So far I can decrypt some of EID0′s sections, EID1, EID2 and EID4. EID5 encryption should be similar to EID0′s but I lack the generation keys for that one.

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