Luigi Auriemma

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 Post subject: Minecraft
PostPosted: 22 Feb 2011 03:45 

Joined: 16 Aug 2007 06:25
Posts: 367
Any chance of looking in to a Minecraft password recovery?

Looks like the username & password are encrypted in the C:\Users\user\AppData\Roaming\.minecraft\lastlogin file, but the password is sent to the server as clear text so it's gotta be decrypted on the client side.

Client is free to download here: http://www.minecraft.net/download.jsp


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 Post subject: Re: Minecraft
PostPosted: 22 Feb 2011 10:35 

Joined: 13 Aug 2007 21:44
Posts: 4068
Location: http://aluigi.org
being a java client would be easier to write a java password recovery with a copy&paste of the original code.
for example the following should be the core of the code that does the job:
Code:
  private Cipher getCipher(int mode, String password) throws Exception {
    Random random = new Random(43287234L);
    byte[] salt = new byte[8];
    random.nextBytes(salt);
    PBEParameterSpec pbeParamSpec = new PBEParameterSpec(salt, 5);

    SecretKey pbeKey = SecretKeyFactory.getInstance("PBEWithMD5AndDES").generateSecret(new PBEKeySpec(password.toCharArray()));
    Cipher cipher = Cipher.getInstance("PBEWithMD5AndDES");
    cipher.init(mode, pbeKey, pbeParamSpec);
    return cipher;
  }
  ...
      Cipher cipher = getCipher(2, "passwordfile");
      DataInputStream dis;
      dis = new DataInputStream(new CipherInputStream(new FileInputStream(lastLogin), cipher));
am I wrong or no login with minecraft.net today?


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 Post subject: Re: Minecraft
PostPosted: 22 Feb 2011 15:42 

Joined: 16 Aug 2007 06:25
Posts: 367
It's been up and down for the past month or so. I think they are working on moving their servers.


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