维吉尼亚密码的加密实现

package VJNY.yuanma;

import java.awt.FlowLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.Box;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JTextField;

public class VJNY extends JFrame{

public void init(){

JFrame f = new JFrame("维吉尼亚密码");

JPanel p = new JPanel();

JLabel jl1 = new JLabel("明文:");

JLabel jl2 = new JLabel("密钥:");

JLabel jl3 = new JLabel("密文:");

final JTextField  jtf1 = new JTextField(30);

final JTextField  jtf2 = new JTextField(30);

final JTextField  jtf3 = new JTextField(30);

JButton jb = new JButton("确认");

Box b1 = Box.createHorizontalBox();

Box b2 = Box.createHorizontalBox();

Box b3 = Box.createHorizontalBox();

Box b4 = Box.createHorizontalBox();

b1.add(jl1);

b1.add(jtf1);

b2.add(jl2);

b2.add(jtf2);

b3.add(jl3);

b3.add(jtf3);

b4.add(jb);

p.add(b1);

p.add(b2);

p.add(b3);

p.add(b4);

p.setLayout(new FlowLayout());

f.setBounds(400, 400, 400, 400);

f.add(p);

f.setVisible(true);

f.setDefaultCloseOperation(DISPOSE_ON_CLOSE);

jb.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

// TODO Auto-generated method stub

int[][] vj = createVJNY();

//先去除明文中的空格，保存在testStr中

String testStr1 = change(jtf1.getText());

//先去除明文中的空格，保存在testStr中

String testStr2 = change(jtf2.getText());

//获取明文文本，去除中间空格，并将其分割为字符数组

char[] temp1 = testStr1.toCharArray();

//获取密钥文本，对比明文长度，并去除中间空格

char[] temp2 = compare(testStr1, testStr2).toCharArray();

String str = "";

int t1 = 0,t2 = 0;

for(int i = 0 ;i<temp1.length;i++){

for(int j = 0 ;j<temp2.length;j++){

//记录行的ASCLL码

t1 = (int)temp1[i]-97;

//记录列的ASCLL码

t2 = (int)temp2[i]-97;

}

str += (char)vj[t1][t2]+"";

}

jtf3.setText(str);

for(int i = 0;i<temp2.length;i++){

System.out.print(temp2[i]+"");

}

System.out.println();

System.out.println(testStr1);

}

});

}

//去除字符串中间空格

public static String change(String s){

String[] str=s.split(" ");

String temp = "";

for(String i : str){

temp+=i;

}

return temp;

}

//对比字符串长度，s1为明文，s2为密钥

public static String compare(String s1,String s2){

if(s1.length()<s2.length()){

s2+=s2.substring( 0,s1.length());

}

else{

for(int i = 0;i<s1.length()/s2.length();i++){

s2 += s2;

}

s2+=s2.substring(0, s1.length()%s2.length());

}

return s2;

}

//建立维吉尼亚矩阵

public int[][] createVJNY(){

int[][] vj = new int[26][26];

vj[0][0]=0;

for(int i = 0 ; i < 26 ;i++){

for(int j = 0 ; j < 26;j++){

vj[i][j]=i+j+65;

if(vj[i][j]>90){

vj[i][j] = (j+i+65-26);

}

else{

vj[i][j] = j+i+65;

}

//System.out.print(vj[i][j]+" ");

}

System.out.println();

}

return vj;

}

public static void main(String[] args) {

// TODO Auto-generated method stub

VJNY vjny = new VJNY();

vjny.init();

}

}

中间的代码实现步骤都已用注释写出，如果有其他方法，也可评论大家一起讨论。