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Hermes and Naima on PS3 NPDRM SELFs, Encryption Differs


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194w ago - Today Waninkoko mentioned he agrees with Hermes and Naima's recent views on the discussion of PS3 NPDRM SELFs, how their encryption differs, GeoHot and what PS3 Firmware 3.60 may bring to combat PlayStation 3 hackers.

Below is a rough translation from Elotrolado, to quote:

"Let's see... speaking of bans and stories...

I like to play magic, astrology and / or fortune-telling, so what is written below is not from any of the three.

The first consequence that will bring the firmware 3.60 is that all applications signed with the utility in make_self_npdrm created by Geohot stop working.

Oh Wait! That's not what I had said 'sceners' by the mouth of all are phrases like 'are key signed with Sony, you can not do anything'

That would be true if they were well signed, but the truth is that they are not.

Without going into deep detail about how the Sony npdrm I will explain briefly, when Sony makes the process to generate an executable npdrm valid, generates a random key pair unique for each executable, those keys are encrypted with the ERK + npdrm RIV, which is available reverse-engineering the firmware PS3 coded counterpart obtaining them.

The keypair is encrypted then clear the rest of the encrypted file and its counterpart is included as such in the header. The ERK + RIV npdrm Sony counterpart to decrypt the header and get the keypair clear after which we can follow the rest of the decryption process of the application.

I have intentionally omitted details, but I think the important concept is clear.

Geohot with cheap excuse not to encourage piracy has never published the key then Sony would decrypt all npdrm. That would be honest if it came from someone else, but in the case of a megalomaniacal egomaniac we suspect other hidden agendas.

Kakaroto said recently that "now the hackers we must also reverse engineer Geohot both work as that of Sony's as clear sign of his displeasure toward Geohot control policy.

My general definition of piracy would be the misappropriation of something in order to obtain personal benefit Geohot just what has been done.

Have you used the keys and the Sony code to position a checkpoint in the 'scene' for PS3, be he who decides who can do the rest of us.

Hypocrisy has been used at will as best suited him, we do not condemn it piracy on one hand but on the other metldr the key post because it is a contradiction.

Has clearly used his position to a position from childhood, I think Geohot has seen too many movies, openly seek work, the sad reality is that in the professional world or for fellow would not today. If you want to work professionally is formed first.

The question of its usefulness in make_self_npdrm is that it uses a keypair static since it does not include the ERK + RIV Sony npdrm keypairs can not generate random for each file.

Has other errors, such as creating blank File Digest, which are unmistakable signs that the executables created are legitimate, but these other errors could be corrected by any competent programmer. However, the static keypair has no solution without the ERK + RIV npdrm Sony.

Sony is therefore extremely easy to block the execution, blacklist, all executable to use that keypair, and Geohot knows.

In fact in your source code includes a request to Sony: 'Please do not add to blacklist the key pair that I use, I have offered applications lack the ability to decipher the npdrm'

If we add your child open and work order which I have mentioned, I feel the urgent need to address a question to Geohot, the same question is also the desire of all employees and people who are part of Sony and I even think that part of the user community.

Geohot, kid, "Are you stupid or you do it? just that I thought a few days ago +risas

In addition, the patch is applied by mounting the flash in writing, decoding module, it gets the patch messed with the payloads for pkgs (four bytes), re-encrypts it and writes it to the flash.

This is just watching the elf text strings with a hex editor (the syscall to mount the device is published in http://ps3wiki.lan.st/index.php/Lv-2_syscalls

Sys_storage_util_mount 837 (?) Parameters: Device Name (eg CELL_FS_IOS: BUILTIN_FLSH1) Device File System (eg CELL_FS_FAT) Device Path (eg / dev_flash), 0, Write Protection (0 or 1), 0, 0, 0

Sys_storage_util_unmount 838 (?) Parameters: Device Path (eg / dev_flash)

Of course, what I do is I can not control 50 areas and 50 fregaos get into, because at the end, I can find a mess that can not leave (other than each has its strengths and weaknesses.) Thing, is that all of our own solve the puzzle and all methods are public and that each work on what you like most independent of the others.

I certainly hoped to have the functional fail0verflow tools that allow me or others, to create the necessary code, but it certainly was very much in disagreement with the path taken by geohot to guard things, basing his work on the part of work of others. That makes a pass at a small application, but not something that requires the best minds and some tranaparencia for anyone charged with the responsibility and does not wither.

A big companies we give a crap: I do not care if you're brilliant or mediocre, if you're black or white glove: we all get into the same bag and say the same for all: the mess that was previously head better. And if not interested in the game, not to intervene.

So it's understandable that people be careful not to look for trouble, but it is understandable that you do your job, you keep it and you become solely responsible for certain things that are happening, because then, you cut what hangs and what does not hang as well, do not farm your friends and how to proceed, you prevent this forward and put others at risk trying to do the same as your own + the boot.

PD: Anyway, I do not want to lose, for us and much to gain and dismantle the arguments of SONY or most of their arguments, but also to be scared enough to do what I should have done from the beginning : o nothing, or what others are doing in this regard.

Greetings"

Waininkoko adds the following: "Totally agree.

By the way, what a surprise when I told you about the XML and then saw Finally, geohot has done the same thing I already got done, but in a different way."



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Comments 35 Comments - Go to Forum Thread »

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GiantMonster's Avatar
#15 - GiantMonster - 194w ago
so there was no release of so called ps3 root key or ps3 private key, that could sign software for all future firmware versions of ps3. geohot's signing tool only contains keys for signing executables to work only on fw version up to 3.55.

whenever failOverflow team or Geohot has actual root key remains mystery...

SaveU's Avatar
#14 - SaveU - 194w ago
So in the end, Geohot did give out as much as he could to open the PS3 homebrew scene, while not setting the world completely on fire.

When he asked sony not to blacklist his keys, he informed them that they could easily be blocked, but implied that he could create another set. So he could spoonfeed the scene without completely giving up the recipie. (because if he did that it would be much MUCH more difficult to block. I guess he was hoping sony would let the keys slide, if the whole backup thing didnt go nuts like it did.

In the end, I think he did this as a defense from sony. As what he did will be somewhat recoverable within a couple of firmware updates. By the time we hit march, all games will be in the 3.6plus SDK, and untouchable by current measures.

But I believe it will backfire, in the sense that Sony has a valid point in that if he isnt "blocked" from contributing to the scene, he can continually disrupt and cause damage to sony. Whereas if he is blocked, it may end here, as other mainstream "hackers" arent going to waste thier time on something that has been done.

Either way, i'm not so sure that Geohot will go any further in releasing stuff. If he wins the case, he has contributed by setting a precedent for the industry. (Same if he loses) But I doubt he will put his future (he is a young guy with a bright future... bright wealthy future) on the line again, as he has already done it. Unconditionally, and undisputedly done it.

The PS3 is hacked, the tools are there now to put linux on the box. Future motivation has dwindled.

Lets see what happens in the upcommig months, if someone else will jump on the grenade.

JoeSurfer68's Avatar
#13 - JoeSurfer68 - 194w ago
Just found the difference between NPDRM and SELFs, sorry for bothering (for all the other beginners: NPDRM are used for PSN downloads).

routehero's Avatar
#12 - routehero - 194w ago
Unless you have a stack of SNES catridges and arcade machines in your basement, it's still copyright infringement and no different than using 'backups'.

caravela's Avatar
#11 - caravela - 194w ago
Quote Originally Posted by xander150 View Post
There is no note, his files (which all use the same key pair) are like a note (Like: "Hey, I use always the same key pair, so that I can control the apps and stop piracy so please don't ban my key pair").

There is, and it is on the include/oddkeys.h file

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