Talk:ReDRM / Piracy dongles

Q&A

Q: Is this posible on other dongles from the FW3.41 days like Blackcat and Teensy?
A: Dongles are bad and obsolete, mkay :P (once you have the key/algo, you don't need any dongle at all)

Q: Are they (TB team) just stealing the dev eboots?
A: You can only rumor which source they use to resign the content to lock-in their DRM. But ofcourse those very same DRM-less files can be resigned for 3.55 too (as has been done numerous times in the past). Piracy is bad, but pirates using DRM to make sure they get the money and not genuine developpers is even worse (especially when they lock you into a single firmware that has even less to offer than generic MFW and makes you loose OtherOS++ too).

old talk

(seems obsolete and incorrect in many ways)

It seems the ps3jb2 loads masterdiscs with fself, with the algo provided and the right key (which is not provided) you can decrypt said masterdiscs images right on pc and grab the fself files.

---

   // do crypt
   unsigned char sector_key[16];
   memset(sector_key, 0, 16);
   sector_key[12] = (sector_num & 0xFF000000)>>24;
   sector_key[13] = (sector_num & 0x00FF0000)>>16;
   sector_key[14] = (sector_num & 0x0000FF00)>> 8;
   sector_key[15] = (sector_num & 0x000000FF)>> 0;
   
   // encrypt sector
   aes_context aes_ctx;
   aes_setkey_enc(&aes_ctx, G_DEBUG_KEY, 128);
   aes_crypt_cbc(&aes_ctx, AES_ENCRYPT, aligned_size, sector_key, buff, buff);
   
   // decrypt
   aes_context aes_ctx;
   aes_setkey_dec(&aes_ctx, G_DEBUG_KEY, 128);
   aes_crypt_cbc(&aes_ctx, AES_DECRYPT, aligned_size, sector_key, buff, buff);

that's the algo for masterdiscs
ps3gen dll has the static keys for masterdiscs
you can also get it from sv_iso
the crappy sdk tool that generates masterdisc images for dex

more talk:

  folks
  I looked a little more
  and it seems the psjb2 just runs masterdiscs
  with fself
  kinda lame
  very lame
  npdrm encrypted but labeled as fself
  it's a fself but I dunno what it does
  I never looked at it
  I don't really care on doing more
  if you use the masterdisc algo I provided
  and the proper key
  which I am not supplying
  you can decrypt all the psjb2 disc images
  right on pc
  grab the fself
  and use them to run them on a regular 3.55 fw
  basically security == LAME
  still interesting to see how they patched the firmware to allow masterdiscs
  they also do some auth with the dongle
  which involves crypto
  to make sure the firmware does not load without it
  but if you don't need the firmware to load the games...
  they could have added some extra keys in appldr and encrypted the damn eboots at least
  I guess they didn't have enough time or enough spu skills

Regarding FSELF from "RikuKH3":

  Real FSELFs are never encrypted. You can extract it with official unfself tool from SDK.
  But, in this FSELF I looked into (driver sf) ELF inside IS encrypted. You can say this because it's masterdisc fself, but I really doubt it.
  It doesn't look like a proper fself to me at all, in header it says that sections unecrypted, but it's not true.
  Another thing - Masterdisc Generator tool from Sony gives errors with this EBOOT (if it's a masterdisc eboot as stated, why?).

Seems the above from mathieulh may be incorrect and the eboots ARE encrypted. So much for lame security, maybe this wont be so trivial?