aes.java

是一个用java写的关于AES加密解密的小软件

	   }
	   
	   public void outCode(int code_num[])
	   {
		   	for(int i = 0; i < 16; i ++)
		   		code_num[i] = Code[i];
	   }
	   
	   public void getKey(int key_num[])
	   {
		   for(int i = 0; i < 16; i++)
		   {
			   key[i] = 0;
			   Code[i] = 0;
		   }
		   for(int i = 0; i < 16; i ++)
		   {
			   key[i] = key_num[i]^key[i];
		   }
	   }
	   public void actionPerformed(ActionEvent e)
	   {
		   
		   if(e.getSource() == encode)
		   {
			   /*
			    * get the keys(the keys is initialized with all 0s.)
			    * if the keys are shorter or longer than 16 bits, 
			    * it add '0' to the tail
			    * until it mod(16) equals to 0 .
			    */
			   int i,j;
			   int []code_num = new int[16];
			   int []key_num = new int[16];
			   String temp_key = keytext.getText();
			   String temp_code = original.getText();
			   int len_key = temp_key.length();
			   int len_code = temp_code.length();

			   if(len_key%16!=0)
			   {
				   for(i = len_key%16; i < 16; i ++)
				   {
					   temp_key += " ";
				   }
			   }
			   for(i = 0, j = 0; j < temp_key.length(); j ++, i ++)
			   {
				   key_num[i] = temp_key.charAt(i);
				   if(i == 15)
				   {
					   getKey(key_num);
					   i = -1;
				   }
			   }
			   
			   KeyExpansion();
			   
			   /*
			    * get the code
			    * if the keys are shorter or longer than 16 bits, 
			    * it add '0' to the tail
			    * until it mod(16) equals to 0
			    */
			   //////////////////////////////////////////
			   
			   String output = "";
			   
			   if(len_code%16!=0)
			   {
				   for(i = len_code%16; i < 16; i++)
					   temp_code += " ";
			   }
			   for(i = 0,j = 0; j < temp_code.length(); j ++, i ++)
			   {
				   
				   code_num[i] = (temp_code.charAt(j));
				   
				   if(i == 15)
				   {
					   getCode(code_num);
					   Encode();
					   outCode(code_num);
					   for(i = 0; i < 16; i ++)
					   {
						   /*
						    * change the ASCII code into character
						    */
						   //String aa = String.valueOf(char(code_num[i]));
						   output += Character.toChars(code_num[i])[0];
					   }
					   to_code.setText(output);
					   i = -1;
				   }
			   }
		   }
		   
		   /*
		    *  Button event of decode
		    */
		   if(e.getSource() == decode)
		   {
			   /*
			    * get the keys(the keys is initialized with all 0s.)
			    * if the keys are shorter or longer than 16 bits, 
			    * it add '0' to the tail
			    * until it mod(16) equals to 0 .
			    */
			   int i,j;
			   int []code_num = new int[16];
			   int []key_num = new int[16];
			   String temp_key = keytext.getText();
			   String temp_code = to_code.getText();
			   int len_key = temp_key.length();
			   int len_code = temp_code.length();
			   //char shit;
			   //System.out.print(len_code);
			   if(len_key%16!=0)
			   {
				   for(i = len_key%16; i < 16; i ++)
				   {
					   temp_key += " ";
				   }
			   }
			   for(i = 0, j = 0; j < temp_key.length(); j ++, i ++)
			   {
				   key_num[i] = temp_key.charAt(i);
				   if(i == 15)
				   {
					   getKey(key_num);
					   i = -1;
				   }
			   }
			   
			   KeyExpansion();
			   
			   /*
			    * get the code
			    * if the keys are shorter or longer than 16 bits, 
			    * it add '0' to the tail
			    * until it mod(16) equals to 0
			    */
			   //////////////////////////////////////////
			   
			   String output = "";
			   
			   if(len_code%16!=0)
			   {
				   for(i = len_code%16; i < 16; i++)
					   temp_code += " ";
			   }
			   for(i = 0,j = 0; j < temp_code.length(); j ++, i ++)
			   {
				   
				   code_num[i] = (temp_code.charAt(j));
				   if(i == 15)
				   {
					   getCode(code_num);
					   Decode();
					   outCode(code_num);
					   

					   
					   for(i = 0; i < 16; i ++)
					   {
						   output += Character.toChars(code_num[i])[0];
						   //output += String.valueOf(code_num[i]);
					   }
					   to_original.setText(output);
					   i = -1;
				   }
			   }
		   }
	   }
	/*
	 * construct function
	 */
	public AES()
	{
		Container container = getContentPane();
		container.setLayout(new GridLayout(1,1,5,5));
		//container.addMouseListener(this);
		//container.addMouseMotionListener(this);
		
		JPanel p1 = new JPanel();
		//p1.addMouseListener(this);
		p1.setLayout(new GridLayout(4,1,5,5));
		
		//p1.add(label = new JLabel());
		JPanel p1_1 = new JPanel();
		p1_1.setLayout(new BorderLayout());
		JPanel p1_2 = new JPanel();
		p1_2.setLayout(new GridLayout(2,1,5,5));
		JPanel p1_3 = new JPanel();
		p1_3.setLayout(new BorderLayout());
		JPanel p1_4 = new JPanel();
		p1_4.setLayout(new BorderLayout());
		
		//p1_1.add(new JLabel(" 明文"),BorderLayout.NORTH);
		p1_1.setBorder(BorderFactory.createTitledBorder("明文  (暂时无法加密汉字)"));
		p1_1.add(original = new JTextArea(),BorderLayout.CENTER);
		
		JPanel p1_2_2 = new JPanel();
		p1_2_2.setLayout(new BorderLayout());
		p1_2_2.setBorder(BorderFactory.createTitledBorder("密钥  (暂时无法使用汉字做密钥)"));
		//p1_2_2.add(new JLabel("密钥"),BorderLayout.NORTH);
		p1_2_2.add(keytext = new JTextArea(),BorderLayout.CENTER);
		p1_2.add(p1_2_2);
		
		JPanel p1_2_1 = new JPanel();
		p1_2_1.setLayout(new FlowLayout());
		p1_2_1.add(encode = new JButton("加密"));
		p1_2_1.add(decode = new JButton("解密"));
		p1_2.add(p1_2_1);
		
		//p1_3.add(new JLabel(" 密文"),BorderLayout.NORTH);
		p1_3.setBorder(BorderFactory.createTitledBorder("密文  (暂时无法解密汉字)"));
		p1_3.add(to_code = new JTextArea(),BorderLayout.CENTER);
		
		p1_4.setBorder(BorderFactory.createTitledBorder("原文  (比较)"));
		//p1_4.add(new JLabel(" 原文（比较）"),BorderLayout.NORTH);
		p1_4.add(to_original = new JTextArea(),BorderLayout.CENTER);
		
		p1.add(p1_1);
		p1.add(p1_2);
		p1.add(p1_3);
		p1.add(p1_4);
		
		container.add(p1);
		
		original.setLineWrap(true);
		p1_1.add(new JScrollPane(original));
		to_code.setLineWrap(true);
		p1_3.add(new JScrollPane(to_code));
		to_original.setLineWrap(true);
		p1_4.add(new JScrollPane(to_original));
		keytext.setLineWrap(true);
		p1_2_2.add(new JScrollPane(keytext));

		encode.addActionListener(this);
		decode.addActionListener(this);

		JMenuBar bar = new JMenuBar();
		//JPanel menu = new JPanel();
		//menu.setLayout(new GridLayout(1,10));

		JMenu theFile = new JMenu("文件");
		JMenu editMenu = new JMenu("编辑");
		JMenu helpMenu = new JMenu("帮助");
		
		JMenuItem firstMenu = new JMenuItem("退出");
		
		JMenuItem cutMenu = new JMenuItem("剪切");
		JMenuItem copyMenu = new JMenuItem("复制");
		JMenuItem pasteMenu = new JMenuItem("粘贴");
		
		JMenuItem secondMenu = new JMenuItem("关于");
		
		editMenu.add(cutMenu);
		editMenu.add(copyMenu);
		editMenu.add(pasteMenu);
		
		theFile.add(firstMenu);
		
		helpMenu.add(secondMenu);
		
		bar.add(theFile);
		bar.add(editMenu);
		bar.add(helpMenu);
		
		setJMenuBar(bar);
		setSize(300,300);
		
		cutMenu.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e)
			{
				original.cut();
				keytext.cut();
				to_code.cut();
				to_original.cut();
			}
		});
		
		copyMenu.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e)
			{
				original.copy();
				keytext.copy();
				to_code.copy();
				to_original.copy();
			}
		});
		
		pasteMenu.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e)
			{
				//if(original.getCursor() == DEFAULT_CURSOR)
					original.paste();
				System.out.print(original.getCursor());
				keytext.paste();
				to_code.paste();
				to_original.paste();
			}
		});
		
		firstMenu.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				System.exit(0);
			}
		});
		
		secondMenu.addActionListener(new ActionListener(){
			public void actionPerformed(ActionEvent e){
				JFrame newF = new JFrame("关于");
				JPanel p1 = new JPanel();
				
				p1.setLayout(new GridLayout(5,1,10,5));
				p1.add(new JLabel("版本AES 1.0"));
				p1.add(new JLabel("创建于 2006/6/3"));
				p1.add(new JLabel("创建者：计算机B班  李德苑  033511063"));
				p1.add(new JLabel("E-mail：[e-mail]"));
				p1.add(new JLabel("说明：暂时无法加密与解密汉字"));

				newF.add(p1);
				newF.setSize(400,200);
				
				Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
				int screenWidth = screenSize.width;
				int screenHeight = screenSize.height;
				
				Dimension frameSize = newF.getSize();
				int x = (screenWidth - frameSize.width)/2;
				int y = (screenHeight - frameSize.height)/2;
				newF.setLocation(x,y);
				//newF.setVisible(true);
				newF.show();
			}
		});
	}

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		AES test = new AES();
		test.setTitle("AES");
		test.setSize(600,600);
		test.setVisible(true);
		
		Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
		int screenWidth = screenSize.width;
		int screenHeight = screenSize.height;
		
		Dimension frameSize = test.getSize();
		int x = (screenWidth - frameSize.width)/2;
		int y = (screenHeight - frameSize.height)/2;
		
		test.setLocation(x,y);
		
		test.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		//System.out.println("Welcome to java");
	} 
}