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  1. #1
    pkedpker
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    SkillData decoder

    Hello I figured it's time for me to contribute something I guess..

    I couldn't get far on the packet bot, so I put that on hold a bit.
    Wanted for some fun to remake the bin file decoder/encoder.
    this here is just a decoder for SkillData0.bin hardcoded.

    At first I programmed this tool in visual basic 6 wasn't happy with the results.. took 12 minutes to decode that 8 MB file.. The original bin decoder made by Dwar took roughly 8 minutes. I thought thats the fastest it could go.. since he's a pro . I remade the tool in C++ and amazingly enough it decodes the whole file in 1 second flat without multi-threading or anything.

    Here it is. Attached it to this post.

    Sure it doesn't Re-encode the file but thats easy to program I just did this to make myself a little happy that I can do something right atleast lol.

    Please register or login to download attachments.

    Last edited by pkedpker; 2011-04-14 at 10:51 PM.

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  3. #2
    explosionsinthe
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    Quote Originally Posted by pkedpker View Post
    Sure it doesn't Re-encode the file but thats easy to program I just did this to make myself a little happy that I can do something right atleast lol.
    I feel you I guess you should be proud since it can decode whatever this encoded data is in a second

    So since I haven't messed with an online game before I have to ask, what exactly does this Skill Data contain ?
    I am assuming these bin files are used by MMORPGs to load data dynamically during runtime ?

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  5. #3
    crata
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    How do you do it.
    I want to find a way to open it.
    pran I say.
    What's on the inside some.

    And thanks for sharing.

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  7. #4
    Dwar
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    Quote Originally Posted by pkedpker View Post
    The original bin decoder made by Dwar took roughly 8 minutes.
    emmm, it took only about 2 min ... only because I've made unoptimized byte-by-byte decryption alg (I was engaged in competition with my friend "who will create it first")
    Please, post your questions on forum, not by PM or mail

    I spend my time, so please pay a little bit of your time to keep world in equilibrium

  8. #5
    makradesh
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    Lol, we should make a topic for writers.. sort of competition with small but quiet usefull programs..
    And then make it a "Who will create it first" competition =p
    Stewie kills the world in 2012.

  9. #6
    pkedpker
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    thats a good idea but i wouldnt even understand the bin data format without dwar's explanation best i would of done is probably found it hehe. Then again IDA Pro does a good job at documenting it.. I'm slowly learning how to fix some heavy mistakes IDA Pro makes with a few regular expressions gonna make a prog for that probably lol.

  10. #7
    TRAPACEIRO
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    Quote Originally Posted by pkedpker View Post
    Hello I figured it's time for me to contribute something I guess..

    I couldn't get far on the packet bot, so I put that on hold a bit.
    Wanted for some fun to remake the bin file decoder/encoder.
    this here is just a decoder for SkillData0.bin hardcoded.

    At first I programmed this tool in visual basic 6 wasn't happy with the results.. took 12 minutes to decode that 8 MB file.. The original bin decoder made by Dwar took roughly 8 minutes. I thought thats the fastest it could go.. since he's a pro . I remade the tool in C++ and amazingly enough it decodes the whole file in 1 second flat without multi-threading or anything.

    Here it is. Attached it to this post.

    Sure it doesn't Re-encode the file but thats easy to program I just did this to make myself a little happy that I can do something right atleast lol.
    works in Aikabr ?

    nice share thx

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  12. #8
    rhu10
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    Quote Originally Posted by TRAPACEIRO View Post
    works in Aikabr ?

    nice share thx
    Yes, it does. But you have to use this client here:https://progamercity.net/aika/1806-r...-checksum.html
    Because the default client has checksum.

    Bye, pal.

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  14. #9
    astrobunny
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    Quote Originally Posted by explosionsinthe View Post
    I feel you I guess you should be proud since it can decode whatever this encoded data is in a second

    So since I haven't messed with an online game before I have to ask, what exactly does this Skill Data contain ?
    I am assuming these bin files are used by MMORPGs to load data dynamically during runtime ?
    Its exactly what it says on the tin. SkillData0.bin contains information about skills, along with the text displayed to the user in the user interface. The format of the various bin files aren't exactly complicated, because I've decoded most of them already. My only complaint is the amount of stuff that's actually hardcoded in the .exe

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  16. #10
    gabri650
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    Not working in AikaBR.
    Even if i use the Aika with no CheckSum client.

    Não está funcionando no AikaBR.
    Mesmo se eu usar o Cliente sem CheckSum.

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