The Callisto Protocol

Extraction and unpacking of game archives and compression, encryption, obfuscation, decoding of unknown files
michalss
Posts: 320
Joined: Sun Aug 10, 2014 12:49 pm

The Callisto Protocol

Post by michalss »

Hi,

I found the aes key, however this game is hybrid between UE4 -> UE5. Some of the functions has been ported from UE5 to UE4 and this comes with some changes. This game has ucas, utoc and sig files. I can unpack PAK files withour any issue, but it contains only fonts and part of the localization, like Menu, actions, etc. I goal is to get all dialogs from game, so i need to unpack ucas files, yes i know they are pared with pak files, but i cannot get any data from them by usuall methods. Any help you would move me forward. Thx

AES key:

Code: Select all

0x1958456F8B54A02D25DF32327C57C9D20DFCF7E948967D08CFB48E8EBC65BEEB
Structure:
Image

Could @spiritovod help pls?
michalss
Posts: 320
Joined: Sun Aug 10, 2014 12:49 pm

Re: The Callisto Protocol

Post by michalss »

found the dialogs.. :)
Terminator2222
Posts: 44
Joined: Sat Jun 20, 2015 1:42 pm

Re: The Callisto Protocol

Post by Terminator2222 »

We're happy for you - and don't hold the information about the details and methods only for yourself, please. ;)
michalss
Posts: 320
Joined: Sun Aug 10, 2014 12:49 pm

Re: The Callisto Protocol

Post by michalss »

Terminator2222 wrote:We're happy for you - and don't hold the information about the details and methods only for yourself, please. ;)
Nothing to report yet, im still working on it. I actually want to make UE4-UE5 editor, just not sure when :D i done all with hex so far..
Terminator2222
Posts: 44
Joined: Sat Jun 20, 2015 1:42 pm

Re: The Callisto Protocol

Post by Terminator2222 »

Glad to hearing about that UE4-5 Editor - it would be HUGE help for us translators :P
I wish you lots of patience and time for it.
binlv1
Posts: 54
Joined: Sat Apr 15, 2017 9:00 am

Re: The Callisto Protocol

Post by binlv1 »

Its subtitle files are in pakchunk0-WindowsNoEditor.ucas file and i edited it, ani need to make a mod for it, appreciate if anyone share the mod method for .ucas file
Mayki
Posts: 15
Joined: Tue Apr 13, 2021 6:31 pm

Re: The Callisto Protocol

Post by Mayki »

Dialogue and menu texts.
ravasz81
Posts: 5
Joined: Sun Dec 04, 2022 12:08 am

Re: The Callisto Protocol

Post by ravasz81 »

Mayki wrote:Dialogue and menu texts.
We need a tool to repackage the texts...
This is worth nothing.
michalss
Posts: 320
Joined: Sun Aug 10, 2014 12:49 pm

Re: The Callisto Protocol

Post by michalss »

I made every attempt to do make a new patch file, unfortunately without the rsa key im not able to sign it "yet". It will take a little longer, there is a few techniques to make it work, but none of them are working so far. Remember i said in the first post, some of the functions are ported from UE5 and my guess is that paking has been modified. My theory is, there could be enough to just repack last ucas file, since it seems this not require sig file, but i did not try it, also it could be problem with priority...
ravasz81
Posts: 5
Joined: Sun Dec 04, 2022 12:08 am

Re: The Callisto Protocol

Post by ravasz81 »

Hang in there, we are grateful for your efforts.
mrmemmo_
Posts: 46
Joined: Sat Mar 16, 2019 1:21 pm

Re: The Callisto Protocol

Post by mrmemmo_ »

just localization?
shindegeist
Posts: 21
Joined: Thu Dec 30, 2021 8:49 am

Re: The Callisto Protocol

Post by shindegeist »

Locres can be reimported but subtitles can't. it's ucas/utoc by Zen loader Ue5. Still waiting for master's help :(
Image
michalss
Posts: 320
Joined: Sun Aug 10, 2014 12:49 pm

Re: The Callisto Protocol

Post by michalss »

this is i already know from beginning, but that is not we need... I knew there will be a problem with utoc/ucas files.... sig file is signing only headers in pak file it seems...
mrmemmo_
Posts: 46
Joined: Sat Mar 16, 2019 1:21 pm

Re: The Callisto Protocol

Post by mrmemmo_ »

..
Last edited by mrmemmo_ on Wed Dec 28, 2022 1:10 pm, edited 2 times in total.
shindegeist
Posts: 21
Joined: Thu Dec 30, 2021 8:49 am

Re: The Callisto Protocol

Post by shindegeist »

Cảm ơn nhé, tôi dùng specialK hook được rồi. @mrmemmo_
Image
Kein
Posts: 32
Joined: Wed Jan 08, 2020 11:22 pm

Re: The Callisto Protocol

Post by Kein »

I dont own the game so cant test but this is for patch1 from 3 dec, you can downgrade via Steam/DepotDownloader:
https://www118.zippy...Dlyzd/file.html
ravasz81
Posts: 5
Joined: Sun Dec 04, 2022 12:08 am

Re: The Callisto Protocol

Post by ravasz81 »

Kein wrote:I dont own the game so cant test but this is for patch1 from 3 dec, you can downgrade via Steam/DepotDownloader:
https://www118.zippy...Dlyzd/file.html
The link is not good...
Kein
Posts: 32
Joined: Wed Jan 08, 2020 11:22 pm

Re: The Callisto Protocol

Post by Kein »

ravasz81
Posts: 5
Joined: Sun Dec 04, 2022 12:08 am

Re: The Callisto Protocol

Post by ravasz81 »

Kein wrote:https://www118.zippyshare.com/v/oM3Dlyzd/file.html ?
The link is now good. Thank you. What is it exactly? :)
Kein
Posts: 32
Joined: Wed Jan 08, 2020 11:22 pm

Re: The Callisto Protocol

Post by Kein »

Patch for xdelta, you can use DeltaPatcherUI: https://www.romhacking.net/utilities/704/
(I dont know if link is good or safe, this was just first result)
Give it original file and xdelta and it will patch.