ZenHAX

Free Game Research Forum | Official QuickBMS support | twitter @zenhax | SSL HTTPS://zenhax.com
It is currently Wed Oct 17, 2018 1:01 am

All times are UTC




Post new topic  Reply to topic  [ 4 posts ] 
Author Message
 Post subject: EA big/bh files crc
PostPosted: Fri Mar 02, 2018 1:07 pm 

Joined: Sat Aug 26, 2017 8:09 am
Posts: 26
Hi,
I need help to calculate crc hash value from EA's .Big and .bh files. CRC value is same for same file in Big archive with EB identifier and BIG4 archive with .bh-files. For example "fe/ion/game/menus/onlinepostgame.big" crc calculation in bh-file is 0x194A2099. I tried CRC-32 checksum calculator and crc_scan.bms (I'm not sure how to use it) to get correct value, but I didn't get right one.

a lot of EA games has mc02 checksums, but I'm not sure is the values in big-archives calculated with that.

.big and .bh samples in attachment.


Attachments:
patch.zip [631.85 KiB]
Downloaded 33 times
Top
   
 Post subject: Re: EA big/bh files crc
PostPosted: Tue Mar 13, 2018 12:15 am 

Joined: Sun Mar 04, 2018 1:29 am
Posts: 53
beedy wrote:
Hi,
I need help to calculate crc hash value from EA's .Big and .bh files. CRC value is same for same file in Big archive with EB identifier and BIG4 archive with .bh-files. For example "fe/ion/game/menus/onlinepostgame.big" crc calculation in bh-file is 0x194A2099. I tried CRC-32 checksum calculator and crc_scan.bms (I'm not sure how to use it) to get correct value, but I didn't get right one.

a lot of EA games has mc02 checksums, but I'm not sure is the values in big-archives calculated with that.

.big and .bh samples in attachment.

This is what I extracted from the file patch.big :)


Attachments:
fe.rar [501.67 KiB]
Downloaded 26 times


Last edited by HPAndroid on Tue Mar 13, 2018 12:24 am, edited 1 time in total.
Top
   
 Post subject: Re: EA big/bh files crc
PostPosted: Tue Mar 13, 2018 12:24 am 

Joined: Sun Mar 04, 2018 1:29 am
Posts: 53
Your patch.bh file is only the national Internet domain name (ccTLD) for Bahrain. It is managed by BATELCO. :D


Top
   
 Post subject: Re: EA big/bh files crc
PostPosted: Thu Aug 02, 2018 6:50 am 

Joined: Sat Aug 26, 2017 8:09 am
Posts: 26
Hey,

I haven't solved yet crc algorithm for files. I have tried to use crc scanner for a file which iclude path string but didn't match any results. Also I have tried calculate a custom crc32 checksum with various polynomials without correct result.

Is it possible to get correct algorithm if I know CRC and string where it is calculated. I want to add some files in .big archive that's why I need to know how the crc is calculated.

Example crcs:
attribdb/renddb.bin 3C12BC16
attribdb/renddb.opt 3C12F450
attribdb/renddb.vlt 3C131193


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 4 posts ] 

All times are UTC


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Powered by phpBB® Forum Software © phpBB Limited