Go Back   FileForums > Game Backup > PC Games > PC Games - CD/DVD Conversions > Conversion Tutorials

Reply
 
Thread Tools Display Modes
  #1  
Old 06-01-2019, 04:41
Razor12911's Avatar
Razor12911 Razor12911 is offline
Coder
 
Join Date: Jul 2012
Location: South Africa
Posts: 3,208
Thanks: 1,735
Thanked 7,792 Times in 1,774 Posts
Razor12911 is on a distinguished road
Project CARS 2 Bff Decryption Tool

Hello, here's the release of the decryption tool for this particular game.

At least the devs didn't use extreme compression settings like the FIFA 19 release even though they are called Slightly Mad Studio...

Enjoy.
Attached Files
File Type: 7z pcars2_bdt_R1.7z (1.48 MB, 89 views)
__________________
Looking for something?
Visit the
Tutorial Index


Last edited by Razor12911; 08-01-2019 at 15:04.
Reply With Quote
The Following 10 Users Say Thank You to Razor12911 For This Useful Post:
DedSec (06-01-2019), DiCaPrIo (06-01-2019), doofoo24 (06-01-2019), KaktoR (06-01-2019), oltjon (06-01-2019), ravencrow (19-01-2019), shazzla (06-01-2019), Simorq (06-01-2019), yasitha (06-01-2019), ZAZA4EVER (12-01-2019)
Sponsored Links
  #2  
Old 06-01-2019, 13:13
Shateiel's Avatar
Shateiel Shateiel is offline
Registered User
 
Join Date: Jul 2018
Location: Angelarium
Posts: 7
Thanks: 3
Thanked 5 Times in 3 Posts
Shateiel is on a distinguished road
Assuming you did your research, won't link zenhax/xentax, and if not, here you go:

https://forum.xentax.com/viewtopic.php?f=16&t=17057

Seems its using RC4, don't have bff file to test, any sample would be appreciated.
__________________
angel7orm5nwyxr2.onion | BM: BM-2cTtxeiLrKes8UBt3tkdX8Q4axnH6hcs1x
Reply With Quote
  #3  
Old 06-01-2019, 15:07
Razor12911's Avatar
Razor12911 Razor12911 is offline
Coder
 
Join Date: Jul 2012
Location: South Africa
Posts: 3,208
Thanks: 1,735
Thanked 7,792 Times in 1,774 Posts
Razor12911 is on a distinguished road
Quote:
Originally Posted by Shateiel View Post
Assuming you did your research, won't link zenhax/xentax, and if not, here you go:

https://forum.xentax.com/viewtopic.php?f=16&t=17057

Seems its using RC4, don't have bff file to test, any sample would be appreciated.
I was rather expecting stuff like, don't waste your time on this because of slow recompression but I guess I shouldn't worry about that, and yes. I did a bit of research, for now. I figured out how to decrypt pretty much the entire game, all I need is a good strategy of detecting streams without reading the headers so I guess all is in good order.
__________________
Looking for something?
Visit the
Tutorial Index

Reply With Quote
The Following 2 Users Say Thank You to Razor12911 For This Useful Post:
KaktoR (06-01-2019), yasitha (06-01-2019)
  #4  
Old 06-01-2019, 19:34
yasitha yasitha is offline
Banned
 
Join Date: Apr 2013
Location: Krypton
Posts: 199
Thanks: 142
Thanked 16 Times in 8 Posts
yasitha is on a distinguished road
Quote:
Originally Posted by Razor12911 View Post
Who is This this Guy?
Where'd he from?
I think he's an aline

Tadaa.... Gotcha

Hi bro what you need,
Just tell me what to do,
I want to help you.... You know like old days...
Reply With Quote
The Following User Says Thank You to yasitha For This Useful Post:
Razor12911 (07-01-2019)
  #5  
Old 06-01-2019, 21:47
Shateiel's Avatar
Shateiel Shateiel is offline
Registered User
 
Join Date: Jul 2018
Location: Angelarium
Posts: 7
Thanks: 3
Thanked 5 Times in 3 Posts
Shateiel is on a distinguished road
Quote:
Originally Posted by Razor12911 View Post
I was rather expecting stuff like, don't waste your time on this because of slow recompression but I guess I shouldn't worry about that, and yes. I did a bit of research, for now. I figured out how to decrypt pretty much the entire game, all I need is a good strategy of detecting streams without reading the headers so I guess all is in good order.

Don't think there is any other way but to look for "PAK " and then parse and decrypt. You could've looked for encrypted headers as RC4 is simple, made a class reader to decrypt while reading to decompress, but thats out of option when recompressor and decyptor are two different exe.

Unless you got some some other brilliant idea which you can share (:
__________________
angel7orm5nwyxr2.onion | BM: BM-2cTtxeiLrKes8UBt3tkdX8Q4axnH6hcs1x
Reply With Quote
  #6  
Old 07-01-2019, 15:55
Razor12911's Avatar
Razor12911 Razor12911 is offline
Coder
 
Join Date: Jul 2012
Location: South Africa
Posts: 3,208
Thanks: 1,735
Thanked 7,792 Times in 1,774 Posts
Razor12911 is on a distinguished road
Quote:
Originally Posted by Shateiel View Post
Don't think there is any other way but to look for "PAK " and then parse and decrypt. You could've looked for encrypted headers as RC4 is simple, made a class reader to decrypt while reading to decompress, but thats out of option when recompressor and decyptor are two different exe.

Unless you got some some other brilliant idea which you can share (:
Well I managed to do it without looking for "PAK " and parsing any of the headers

using bdt+oo2reck:
Code:
Compressed 1 file, 4,339,674 => 16,546,064 bytes. Ratio 381.27%
Compression time: cpu 0.03 sec/real 2.79 sec = 1%. Speed 1.56 mB/s

Extracted 1 file, 16,546,064 => 4,339,674 bytes. Ratio 381.27%
Extraction time: cpu 0.00 sec/real 0.77 sec = 0%. Speed 5.63 mB/s

4,13 MB (4 339 674 bytes) >> 15,7 MB (16 546 306 bytes)
using QuickBMS and nfsshift.bms:
Code:
4,13 MB (4 339 674 bytes) >> 15,7 MB (16 543 104 bytes)
Edit:

A bit bigger input this time and here are the results:
Code:
Compressed 1 file, 332,106,505 => 1,904,256,950 bytes. Ratio 573.39%
Compression time: cpu 0.70 sec/real 126.43 sec = 1%. Speed 2.63 mB/s

Tested 1 file, 1,904,256,950 => 332,106,505 bytes. Ratio 573.39%
Testing time: cpu 0.75 sec/real 27.13 sec = 3%. Speed 12.24 mB/s
__________________
Looking for something?
Visit the
Tutorial Index


Last edited by Razor12911; 07-01-2019 at 16:40.
Reply With Quote
The Following 5 Users Say Thank You to Razor12911 For This Useful Post:
doofoo24 (07-01-2019), KaktoR (08-01-2019), oltjon (08-01-2019), Simorq (07-01-2019), yasitha (07-01-2019)
  #7  
Old 07-01-2019, 20:56
yasitha yasitha is offline
Banned
 
Join Date: Apr 2013
Location: Krypton
Posts: 199
Thanks: 142
Thanked 16 Times in 8 Posts
yasitha is on a distinguished road
Quote:
Originally Posted by Razor12911 View Post
Well I managed to do it without looking for "PAK " and parsing any of the headers

using bdt+oo2reck:
Code:
Compressed 1 file, 4,339,674 => 16,546,064 bytes. Ratio 381.27%
Compression time: cpu 0.03 sec/real 2.79 sec = 1%. Speed 1.56 mB/s

Extracted 1 file, 16,546,064 => 4,339,674 bytes. Ratio 381.27%
Extraction time: cpu 0.00 sec/real 0.77 sec = 0%. Speed 5.63 mB/s

4,13 MB (4 339 674 bytes) >> 15,7 MB (16 546 306 bytes)
using QuickBMS and nfsshift.bms:
Code:
4,13 MB (4 339 674 bytes) >> 15,7 MB (16 543 104 bytes)
Edit:

A bit bigger input this time and here are the results:
Code:
Compressed 1 file, 332,106,505 => 1,904,256,950 bytes. Ratio 573.39%
Compression time: cpu 0.70 sec/real 126.43 sec = 1%. Speed 2.63 mB/s

Tested 1 file, 1,904,256,950 => 332,106,505 bytes. Ratio 573.39%
Testing time: cpu 0.75 sec/real 27.13 sec = 3%. Speed 12.24 mB/s
Always the Smart One Good Work Mate..
Reply With Quote
  #8  
Old 07-01-2019, 21:58
masen485 masen485 is offline
Registered User
 
Join Date: Feb 2018
Location: safras
Posts: 143
Thanks: 17
Thanked 10 Times in 8 Posts
masen485 is on a distinguished road
Hi Razor12911

Hi Razor12911
Very nice development
Thank you
Project CARS 2 bff Decryptor (WIP)
Fit to try the application you're glued to?
Reply With Quote
  #9  
Old 08-01-2019, 15:09
Razor12911's Avatar
Razor12911 Razor12911 is offline
Coder
 
Join Date: Jul 2012
Location: South Africa
Posts: 3,208
Thanks: 1,735
Thanked 7,792 Times in 1,774 Posts
Razor12911 is on a distinguished road
Initial release uploaded

Tested on:
Project CARS 2 - Spirit of Le Mans vers 7.1.0.1 (12/2018)

Pakfiles\Vehicles:
Code:
Compressed 703 files, 6,564,499,114 => 15,042,895,652 bytes. Ratio 229.16%
Compression time: cpu 41.98 sec/real 4437.19 sec = 1%. Speed 1.48 mB/s

Tested 703 files, 15,042,895,652 => 6,564,499,114 bytes. Ratio 229.16%
Testing time: cpu 15.78 sec/real 549.54 sec = 3%. Speed 11.95 mB/s
I wonder what game should be next to try and decrypt...
__________________
Looking for something?
Visit the
Tutorial Index

Reply With Quote
The Following 4 Users Say Thank You to Razor12911 For This Useful Post:
DiCaPrIo (09-01-2019), doofoo24 (08-01-2019), Simorq (08-01-2019), ZAZA4EVER (12-01-2019)
  #10  
Old 09-01-2019, 00:36
doofoo24 doofoo24 is offline
Registered User
 
Join Date: Nov 2016
Location: canada
Posts: 324
Thanks: 94
Thanked 352 Times in 191 Posts
doofoo24 is on a distinguished road
ok;
so done compressing with srep+lolz bff files 45.6gb > 95.6gb > 42.4gb > 18.9gb
bdt+oo2reck took around 3 hours...
edit : decompression it get to 4.7% remain stuck then data corrupt
it seem that bdt disappear in the processes but oo2reck continue to work for while then i get error
Attached Images
File Type: gif 1.gif (20.6 KB, 83 views)

Last edited by doofoo24; 09-01-2019 at 01:32.
Reply With Quote
The Following 2 Users Say Thank You to doofoo24 For This Useful Post:
Razor12911 (09-01-2019), yasitha (09-01-2019)
  #11  
Old 09-01-2019, 00:38
yasitha yasitha is offline
Banned
 
Join Date: Apr 2013
Location: Krypton
Posts: 199
Thanks: 142
Thanked 16 Times in 8 Posts
yasitha is on a distinguished road
Quote:
Originally Posted by doofoo24 View Post
ok;
so done compressing with srep+lolz bff files 45.6gb > 95.6gb > 42.4gb > 18.9gb
bdt+oo2reck took around 3 hours
Nicely done... Numbers....
Reply With Quote
  #12  
Old 09-01-2019, 06:06
KaktoR KaktoR is offline
Lame User
 
Join Date: Jan 2012
Location: From outer space
Posts: 2,498
Thanks: 628
Thanked 3,599 Times in 1,289 Posts
KaktoR is on a distinguished road
Quote:
Originally Posted by doofoo24 View Post
ok;
so done compressing with srep+lolz bff files 45.6gb > 95.6gb > 42.4gb > 18.9gb
bdt+oo2reck took around 3 hours...
edit : decompression it get to 4.7% remain stuck then data corrupt
it seem that bdt disappear in the processes but oo2reck continue to work for while then i get error
Have you tested with unpack.bat?
__________________
Haters gonna hate
RIP GOD
Reply With Quote
  #13  
Old 09-01-2019, 08:14
doofoo24 doofoo24 is offline
Registered User
 
Join Date: Nov 2016
Location: canada
Posts: 324
Thanks: 94
Thanked 352 Times in 191 Posts
doofoo24 is on a distinguished road
ya the same thing
it manage to decompress 2.12gb then the bdt disappear

Last edited by doofoo24; 09-01-2019 at 08:19.
Reply With Quote
  #14  
Old 09-01-2019, 16:21
Razor12911's Avatar
Razor12911 Razor12911 is offline
Coder
 
Join Date: Jul 2012
Location: South Africa
Posts: 3,208
Thanks: 1,735
Thanked 7,792 Times in 1,774 Posts
Razor12911 is on a distinguished road
could you run bdt by itself to see what happens when you unpack, since anyways it's fastest way I can think of to start debugging this thing
__________________
Looking for something?
Visit the
Tutorial Index

Reply With Quote
  #15  
Old 09-01-2019, 16:57
doofoo24 doofoo24 is offline
Registered User
 
Join Date: Nov 2016
Location: canada
Posts: 324
Thanks: 94
Thanked 352 Times in 191 Posts
doofoo24 is on a distinguished road
ok so bdt alone decompress fine...
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
FIFA 19 Cas Decryption Tool + Precompressor Razor12911 Conversion Tutorials 22 11-01-2019 11:48
Project CARS 2 7xDVD5 CIUV2 2039 U6H2 mausschieber PC Games - CD/DVD Conversions 24 24-10-2017 08:35
Project Cars Digital Edition (3xDVD5) (srep+lzma) GTX590 PC Games - CD/DVD Conversions 10 28-08-2017 09:34
Project cars GOTY (4xDVD5) CIU V2 + UltraARC omdj PC Games - CD/DVD Conversions 13 20-09-2016 18:01



All times are GMT -7. The time now is 19:50.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.
Copyright 2000-2018, FileForums @ https://fileforums.com