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[IV|WIP] OpenIV project

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jas0nuk
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#31

Posted 11 May 2008 - 09:53 PM

Awesome! Any idea when these will be released?

burnandshiver
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#32

Posted 11 May 2008 - 10:21 PM

care to share some more infos?
From the looks of it I too thought the files are either encrypted or compressed.
As shown they are indeed compressed, but whenever I try to decompress a chunk I get a Z_DATA_ERROR error confused.gif
Am I missing something here?!
Are they indeed compressed with Zlib or encrypted too, like XOR ?
RPF files what we're talking about wink.gif
thanks in advance

AK-73
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#33

Posted 13 May 2008 - 10:53 AM

QUOTE (burnandshiver @ May 11 2008, 23:21)
care to share some more infos?
From the looks of it I too thought the files are either encrypted or compressed.
As shown they are indeed compressed, but whenever I try to decompress a chunk I get a Z_DATA_ERROR error confused.gif
Am I missing something here?!
Are they indeed compressed with Zlib or encrypted too, like XOR ?
RPF files what we're talking about wink.gif
thanks in advance


Fox xbox gta3/vc R* used lzo compression. LZO1x-999, to be precise. If you ever don't get anything decompressed with zlib, I would take a look at this.

Alex

user21043
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#34

Posted 13 May 2008 - 06:46 PM

smile.gif Greetings to all! I do not know English and consequently I write by means of the translator. On sreens has seen class programs! Aru, at you the program unpacks those files which on a sreen? And whether probably to combine these files with GTA SA? For example adjustments of cars? smile.gif

UZI-I
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#35

Posted 13 May 2008 - 07:36 PM

The Vehicle's Handling is more complex due to the new Physic Core wink.gif

Acoustik
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#36

Posted 13 May 2008 - 09:34 PM

QUOTE (AK-73 @ May 13 2008, 10:53)
QUOTE (burnandshiver @ May 11 2008, 23:21)
care to share some more infos?
From the looks of it I too thought the files are either encrypted or compressed.
As shown they are indeed compressed, but whenever I try to decompress a chunk I get a Z_DATA_ERROR error confused.gif
Am I missing something here?!
Are they indeed compressed with Zlib or encrypted too, like XOR ?
RPF files what we're talking about wink.gif
thanks in advance


Fox xbox gta3/vc R* used lzo compression. LZO1x-999, to be precise. If you ever don't get anything decompressed with zlib, I would take a look at this.

Alex

No many file in RPF are compress with Zlib !
That's all ^^...

The rest is secret ! (sorry in advance)

burnandshiver
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#37

Posted 13 May 2008 - 11:01 PM

thanks for the info guys wink.gif
yeah tried the LZO compression doesn't work.
So I was right with my initial guess ZLIB but still I get the Z_DATA_ERROR error when decompressing.
Which makes me believe the compressed data is xor encrypted.
In every RPF the first chunk starts at 0x800 (possibly indexing the files in the archive, offset,name,..)followed by a repeating 16byte chunk. This is the same in every RPF but length vary, followed by another chunk of data.
This is the repeating 16 byte key:
user posted image
As the size varies from RPF to RPF this looks like a padding, but if it is indeed xor'd then this is the 16 byte encryption key ?!
But I don't think R* would be that stupid to xor null bytes ?!
Still have to figure this out confused.gif
I'm sorry if such talk is not allowed.
I know you don't want to share any more details, which is fair enough but maybe there is someone who got any info wink.gif

But seeing you guys already documented the file format, this work is pretty much pointless, but still it's nice to tamper around with it on my own biggrin.gif
And it's not like there's a high demand in modding console GTA IV biggrin.gif

user21043
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#38

Posted 14 May 2008 - 09:30 AM

QUOTE (UZI-I @ May 13 2008, 19:36)
The Vehicle's Handling is more complex due to the new Physic Core wink.gif

smile.gif Thanks for the answer! Whether me interests probably, what programs which have created steve-m and aru it will be possible to use for unpacking all resources GTA IV and that they were free for uploading? rolleyes.gif

UZI-I
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#39

Posted 14 May 2008 - 11:00 AM

Actually, it's illegal to talk modding because GTA4 is only on console and for load a modded game, you need to mod your console, and it's illegal smile.gif


user21043
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#40

Posted 14 May 2008 - 11:08 AM

QUOTE (UZI-I @ May 14 2008, 11:00)
Actually, it's illegal to talk modding because GTA4 is only on console and for load a modded game, you need to mod your console, and it's illegal smile.gif

colgate.gif Clearly, we shall wait PC for the version. I hope it will not differ from versions for consoles! biggrin.gif

Alexander Blade
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#41

Posted 14 May 2008 - 11:37 AM

QUOTE (burnandshiver @ May 13 2008, 23:01)
thanks for the info guys wink.gif
yeah tried the LZO compression doesn't work.
So I was right with my initial guess ZLIB but still I get the Z_DATA_ERROR error when decompressing.
Which makes me believe the compressed data is xor encrypted.
In every RPF the first chunk starts at 0x800 (possibly indexing the files in the archive, offset,name,..)followed by a repeating 16byte chunk. This is the same in every RPF but length vary, followed by another chunk of data.
This is the repeating 16 byte key:
user posted image
As the size varies from RPF to RPF this looks like a padding, but if it is indeed xor'd then this is the 16 byte encryption key ?!
But I don't think R* would be that stupid to xor null bytes ?!
Still have to figure this out confused.gif
I'm sorry if such talk is not allowed.
I know you don't want to share any more details, which is fair enough but maybe there is someone who got any info wink.gif

But seeing you guys already documented the file format, this work is pretty much pointless, but still it's nice to tamper around with it on my own biggrin.gif
And it's not like there's a high demand in modding console GTA IV biggrin.gif

it's not XOR and ur sequence it's not the key )
File data begins from 2048(0x800) byte
encryption method is widely using now

Arvis
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#42

Posted 14 May 2008 - 03:05 PM

QUOTE (UZI-I @ May 14 2008, 11:00)
Actually, it's illegal to talk modding because GTA4 is only on console and for load a modded game, you need to mod your console, and it's illegal smile.gif

Isn't it possible to install games on HDD's? That wouldn't be illegall then i think, because console wouldn't be modded.

UZI-I
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#43

Posted 14 May 2008 - 05:52 PM

Vecis, it's what wanted to test ^^

But how you can got the game out of your disc ? humhum ^^

Redspike
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#44

Posted 14 May 2008 - 09:03 PM

running it from the hd would be kinda usefull. as making a change and burning a dvd each time is gnna use up my dvds.
xbox mods ftw ! keep up the great research guys !

MiLO83
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#45

Posted 14 May 2008 - 09:07 PM

Very interested in this.
I also think the 16 byte key is a good find.
(This would either decrypt to 00's or FF's right?)
Will be watching for updates.

- MiLO

QwertyAAA
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#46

Posted 14 May 2008 - 09:28 PM

QUOTE (UZI-I @ May 14 2008, 11:00)
Actually, it's illegal to talk modding because GTA4 is only on console and for load a modded game, you need to mod your console, and it's illegal smile.gif

VCS&LCS are on consoles only.

UZI-I
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#47

Posted 14 May 2008 - 10:10 PM

VCS&LCS are on consoles only.

But you can modify the game without any mod on your console or crack smile.gif

QwertyAAA
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#48

Posted 14 May 2008 - 10:29 PM

Firstly, you do have to install a modification to the console to mod VCS, secondly, nobody's even modding yet.

UZI-I
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#49

Posted 15 May 2008 - 08:01 AM

QUOTE
Firstly, you do have to install a modification to the console to mod VCS, secondly, nobody's even modding yet.


...

It isn't the topic smile.gif

Alexander Blade
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#50

Posted 15 May 2008 - 11:41 AM

QUOTE (MiLO83 @ May 14 2008, 21:07)
Very interested in this.
I also think the 16 byte key is a good find.
(This would either decrypt to 00's or FF's right?)
Will be watching for updates.

- MiLO

this key is in executable file
and u r right because it's easy to find )

Redspike
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#51

Posted 15 May 2008 - 12:31 PM

Any progress on extracting and injecting files?
im currently checking this topic 3 times a day ! It is very intresting you guys are doing a great work. cookie.gif

Alexander Blade
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#52

Posted 15 May 2008 - 01:28 PM Edited by Alexander Blade, 15 May 2008 - 01:46 PM.

it's nothing more than JPG picture

user posted image

it's nothing more than JPG picture

AK-73
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#53

Posted 15 May 2008 - 02:14 PM

QUOTE (QwertyAAA @ May 14 2008, 23:29)
Firstly, you do have to install a modification to the console to mod VCS, secondly, nobody's even modding yet.


sure but you can extract the files from, say, the ps2 version disc, import them into gmax with my mdl import script and export them to say PC VC.

But then again there is plenty of things going around here which are not *legal*. GTA:LC is definitely not legal. It's just that for as long as it doesn't cost The Star or MS or anybody else any substantial amounts of money, etc. those companies seem to be willing to overlook all of it. Why bother?

At least that has been their policy up to now, it seems.

Alex

Redspike
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#54

Posted 15 May 2008 - 03:45 PM

QUOTE (Alexander Blade @ May 15 2008, 13:28)
it's nothing more than JPG picture

user posted image

it's nothing more than JPG picture

this is cool. you can extract these .sco files are you able to then open then in notepad ? or wil they need to be decompiled like scm files?

Alexander Blade
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#55

Posted 15 May 2008 - 04:12 PM

it's only a simple picture biggrin.gif biggrin.gif biggrin.gif

Redspike
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#56

Posted 15 May 2008 - 04:52 PM

so you dont really have a app that does that ? ..

Alexander Blade
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#57

Posted 15 May 2008 - 05:02 PM

>> it's only a simple picture
it's a joke , lol
i really have this tool

Redspike
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#58

Posted 15 May 2008 - 06:09 PM

QUOTE (Alexander Blade @ May 15 2008, 17:02)
i really have this tool

so can u open the sco files? surely this isnt a secret? or am i missunderstanding your english

FullMetal
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#59

Posted 15 May 2008 - 08:38 PM

Don't you get it? He's only at the stage of OPENING it. The files aren't cracked (meaning they don't know what each file is precisely, how to open it/modify it/use it in all sorts of applications.

So let those who know what they're talking about and know what they're doing post in this topic... BS/senseless posts are just a waste of space in this topic.

Redspike
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#60

Posted 15 May 2008 - 10:15 PM

QUOTE (fullmetal @ May 15 2008, 20:38)
Don't you get it? He's only at the stage of OPENING it. The files aren't cracked (meaning they don't know what each file is precisely, how to open it/modify it/use it in all sorts of applications.

So let those who know what they're talking about and know what they're doing post in this topic... BS/senseless posts are just a waste of space in this topic.

i obviously didnt understand ! sorry ! confused.gif




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