[S.U.N Online] Encryption Algorithm

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  1. #16
    Breaker of Codes GoldenHeaven is offline
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    Re: [S.U.N Online] Encryption Algorithm

    Here is something that looks to me like it might help 0x51 0x00 is packet size minus the two bytes of size appearantly

  2. #17
    Developer nevS is online now
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    Re: [S.U.N Online] Encryption Algorithm

    Quote Originally Posted by Ashime View Post
    Last night, I was going through the older C++ files and saw some code with the following information:

    Encrypting block size = 8
    Encrypted block size = 11
    Key size = 4

    If I can find the file again, I will post more of it, but I am still not sure how the encryption algorithm works to produce the outcome.
    Just a wild guess... If these numbers are correct, it might be the SimpleModulus Algorithm (or something similar), used by MU Online which is another Webzen game.
    I blogged about it recently: https://munique.net/a-closer-look-at...et-encryption/
    Do not follow where the path may lead. Go, instead, where there is no path and leave a trail. ~Ralph Waldo Emerson

    OpenMU Project: Blog - GitHub

  3. #18
    Hardcore Member Ashime is offline
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    Re: [S.U.N Online] Encryption Algorithm

    @nevS
    Thank you. I will give it a try. I believe I have the code for the SimpleModulus Algorithm in C++. I will just have to convert to Java.

  4. #19
    Breaker of Codes GoldenHeaven is offline
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    Re: [S.U.N Online] Encryption Algorithm

    Quote Originally Posted by Ashime View Post
    @nevS
    Thank you. I will give it a try. I believe I have the code for the SimpleModulus Algorithm in C++. I will just have to convert to Java.
    Sorry for the long wait, themida was pissing me cuz of vbox so i had given up, today i decided to retry, cant promise its 100% unpacked but i trust the tools i used for it:

    SUN1

    Its the exe u sent, the exe from client chinese link and its unpacked version



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