registration.java

这个小软件( RealEditor )是同学一起编写的

                
                if ( i == 0 ) {
                    
                    firstNode = node;
                    currentNode = firstNode;
                    
                }
                
                
            } else {
                
                node = new Node( ( k++ ) % 10 );
                
                if ( i == 51 ) {
                    node.setNext( firstNode );
                }
                
                
            }
            
            if ( i != 0 ) {
                currentNode.setNext( node );
                currentNode = node;
            }
            
        }
        
        
        
        Node p = firstNode;
        
        
        /*
        for ( int i = 0; i < 104; i++ ) {
            System.out.print( p.getString() + " " );
            p = p.getNext();
        }
        */
        
        String realKey = "";
        
        realKey = getCircleKey( firstNode, pwd );
        
        
        int g = 0;
        p = firstNode;
        
        if ( realKey.length() < 25 ) {
            
            g = ( int )realKey.charAt( ( name.length() / 2 ) % realKey.length() ) % 52;
            
            for ( int c = 0; c < g; c++ ) {
                p = p.getNext();
            }
            
            int offset = 0;
            
            int i = 0;
            
            while ( realKey.length() < 25 ) {
            
                
                offset += Integer.parseInt( ( int )realKey.charAt( i % realKey.length() ) + "" );
                
                for ( int z = 0; z < offset; z++ ) {
                    p = p.getNext();
                }
                
                realKey += p.getString();
                
                i++;
            }
            
            
        }
        
        String str = "";
        
        for ( int i = 0; i < realKey.length(); i++ ) {

            char c = realKey.charAt( i );
            int asci = ( int )c;
            
            if ( i == 0 ) {
                if ( asci <= 57 && asci >= 48 ) {
                    c = ( char )( 'A' + ( asci + Math.pow( i, 3 ) ) % 26 );
                }
            }
            
            if ( str.contains( c + "" ) ) {
                
                if ( asci <= 57 && asci >= 48 ) {
                    if ( asci % 2 == 0 ) {
                        str = str.replace( c, ( char )( 'A' + ( asci + Math.pow( asci / ( i + 1 ), 3 ) ) % 26 ) );
                    } else {
                        str = str.replace( c, ( char )( 'A' + ( asci + Math.pow( asci / ( i + 1 ), 2 ) ) % 26 ) );
                    }
                    
                    c = ( char )( '0' + ( asci + Math.pow( i, 2 ) ) % 10 );
                } else {
                    c = ( char )( 'A' + ( asci + Math.pow( i, 3 ) ) % 26 );
                }
                
                
            }
            
            str += c;
        }
        
        realKey = str;
        
        int h = 0;
        String tmpString = "";
        
        for ( int i = 0; i < realKey.length() && h <= 20; i++ ) {
            
            tmpString += realKey.substring( h, h + 5 ) + "-";
            
            h += 5;
        }
        
        realKey = tmpString.substring( 0, tmpString.length() - 1 );
        
        
        
        return realKey;
    }
    
    private static String mixString( String name, String properties ) {
        
        String result = "";
        
        int minLength = 
            name.length() < properties.length() ? name.length() : properties.length();
        
        for ( int i = 0; i < minLength; i++ ) {
            if ( i % 2 == 0 ) {
                result += properties.charAt( i );
            } else {
                result += name.charAt( i );
            }
        }
        
        if ( name.length() < properties.length() ) {
            result += properties.substring( minLength + 1, properties.length() );
        } else if ( name.length() > properties.length() ) {
            result += name.substring( minLength + 1, name.length() );
        }
            
            
        return result;
        
    }
    
    private static String getCircleKey( Node firstNode, String pwd ) {
        int offset = 0;
        
        String circleKey = "";
        
        Node q = firstNode;
        
        for ( int i = 0; i < pwd.length(); i++ ) {
            
            
            offset += Integer.parseInt( ( int )pwd.charAt( i ) + "" );
            
            for ( int t = 0; t < offset; t++ ) {
                q = q.getNext();
            }
            
            circleKey += q.getString();
            
            q = firstNode;
            
            
            
        }
        
        return circleKey;
    }
    
    public static RegistrationDetails getRegistrationDetails() {
        ObjectInputStream ois = null;
        RegistrationDetails savedRd = null;
        try {
            ois = new ObjectInputStream( 
                new BufferedInputStream( 
                    new FileInputStream( registrationFile ) ) );
            savedRd = ( RegistrationDetails )ois.readObject();
            
            
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                ois.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
        
        return savedRd;
    }
    
    public static void saveRegistrationDetails( RegistrationDetails rd ) {
        File parent = registrationFile.getParentFile();
        try {
            ObjectOutputStream oos =
                new ObjectOutputStream( 
                    new BufferedOutputStream( 
                        new FileOutputStream( registrationFile ) ) );
            oos.writeObject( rd );
            oos.close();
        } catch ( IOException e ) {
            parent.mkdirs();
            boolean fail = true;
            try {
                ObjectOutputStream oos =
                    new ObjectOutputStream( 
                        new BufferedOutputStream( 
                            new FileOutputStream( registrationFile ) ) );
                oos.writeObject( rd );
                oos.close();
                fail = false;
            } catch (FileNotFoundException e1) {
                e1.printStackTrace();
            } catch (IOException e1) {
                e1.printStackTrace();
            }
            if ( fail )
                e.printStackTrace( System.err );
        }
    }
}

class Node {
    
    private String s;
    private Node next;
    
    public Node( char c ) {
        s = c + "";
    }
    
    public Node( int d ) {
        s = d + "";
    }
    
    public String getString() {
        return s;
    }
    
    public void setNext( Node next ) {
        this.next = next;
    }
    
    public Node getNext() {
        return next;
    }
}