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[Release] XCOM Enemy Unknown Compression Toolkit - Page 11
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  1. #81
    khelal

    Re: XCOM Enemy Unknown Compression Toolkit

    Hi, any luck moving fwd with this? I'm stuck and wouldn't mind upping my cash a little bit :)


  2. #82
    obione

    Re: XCOM Enemy Unknown Compression Toolkit

    I'm having problems running PC game version under OllyDbg to understand the protection used.
    Did anyone succeed in running it under some debugger (on windows 7), any special anti-debugger methods implemented & some way to workaround ?
    Seems OllyDbg version 2.01g & 2.01h are not working. Attempted to use "swordfish" plugin to hide debugger, but not seems to be working.

  3. #83
    Junior Member
    carpi is offline
    Join Date : Jul 2013
    Posts : 6
    Array

    Re: XCOM Enemy Unknown Compression Toolkit

    Quote Originally Posted by allusing View Post
    I wrote a version to decompress/compress with zlib, but there is a 32b checksum for iOS version. Still waiting for fairchild to get online to learn how he worked around security check for PC version. Btw, decompressed save is different from PC/Xbox version, so existing editor will not work. Still hackable with HEX editor
    Save file crc check is at 0xBE offset and it is the same customized CRC32b as from Windows version. I don't see difference between PC and iOS version, the savefile structure is exactly the same.

  4. #84
    allusing

    Re: XCOM Enemy Unknown Compression Toolkit

    You are right that savefile structure is the same except the compression changes to zlib.
    Any more information on "customized CRC32b"? Like polynomial and mask operations? Just need that to make iOS version works. Thanks!

  5. #85
    Junior Member
    carpi is offline
    Join Date : Jul 2013
    Posts : 6
    Array

    Re: XCOM Enemy Unknown Compression Toolkit

    Here is my code in python. You can easy translate it to whatever you want.
    Attached Files Attached Files

  6. #86
    Junior Member
    carpi is offline
    Join Date : Jul 2013
    Posts : 6
    Array

    Re: XCOM Enemy Unknown Compression Toolkit

    Can someone share with me save file form Xbox?

  7. #87
    ASSASSlN

    Re: XCOM Enemy Unknown Compression Toolkit

    Tanks for the toolkit.

  8. #88
    Xrypticus

    Re: XCOM Enemy Unknown Compression Toolkit

    Quote Originally Posted by allusing View Post
    I wrote a version to decompress/compress with zlib, but there is a 32b checksum for iOS version. Still waiting for fairchild to get online to learn how he worked around security check for PC version. Btw, decompressed save is different from PC/Xbox version, so existing editor will not work. Still hackable with HEX editor
    Hi, can you release this tool for iOS? Did you get the CRC checks working yet? Thanks appreciated.

 

 

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