Java,C#的DES加解密DES(非base64 可url传递)

发布时间：2024-09-19 14:51:47来源：https://www.iteye.com/阅读（3）

C#代码：


using System;  
using System.Collections.Generic;  
using System.ComponentModel;  
using System.Data;  
using System.Drawing;  
using System.Text;  
using System.Windows.Forms;  
using System.Security.Cryptography;  
using System.Configuration;     
using System.Web;    
using System.IO;  
  
namespace DES  
{  
    public partial class Form1 : Form  
    {  
        private string DES_Key = "20100728";    
  
        public Form1()  
        {  
            InitializeComponent();  
        }  
  
        private void button1_Click(object sender, EventArgs e)  
        {  
            string jiami = textBox3.Text;  
            this.textBox1.Text = DESEnCode(jiami);  
        }  
  
        private void button2_Click(object sender, EventArgs e)  
        {  
            string jiemi = textBox1.Text;  
            textBox2.Text = DESDeCode(jiemi);  
        }  
  
        #region DESEnCode DES加密  
        public string DESEnCode(string pToEncrypt)  
        {     
            DESCryptoServiceProvider des = new DESCryptoServiceProvider();  
            byte[] inputByteArray = Encoding.GetEncoding("UTF-8").GetBytes(pToEncrypt);  
    
            des.Key = ASCIIEncoding.ASCII.GetBytes(DES_Key);  
            des.IV = ASCIIEncoding.ASCII.GetBytes(DES_Key);  
            MemoryStream ms = new MemoryStream();  
            CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write);  
  
            cs.Write(inputByteArray, 0, inputByteArray.Length);  
            cs.FlushFinalBlock();  
  
            StringBuilder ret = new StringBuilder();  
            foreach (byte b in ms.ToArray())  
            {  
                ret.AppendFormat("{0:X2}", b);  
            }  
            ret.ToString();  
            return ret.ToString();  
        }  
        #endregion  
  
        #region DESDeCode DES解密  
        public string DESDeCode(string pToDecrypt)  
        {    
            DESCryptoServiceProvider des = new DESCryptoServiceProvider();  
  
            byte[] inputByteArray = new byte[pToDecrypt.Length / 2];  
            for (int x = 0; x < pToDecrypt.Length / 2; x++)  
            {  
                int i = (Convert.ToInt32(pToDecrypt.Substring(x * 2, 2), 16));  
                inputByteArray[x] = (byte)i;  
            }  
  
            des.Key = ASCIIEncoding.ASCII.GetBytes(DES_Key);  
            des.IV = ASCIIEncoding.ASCII.GetBytes(DES_Key);  
            MemoryStream ms = new MemoryStream();  
            CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);  
            cs.Write(inputByteArray, 0, inputByteArray.Length);  
            cs.FlushFinalBlock();  
  
            StringBuilder ret = new StringBuilder();  
  
            return System.Text.Encoding.UTF8.GetString(ms.ToArray());  
        }  
        #endregion  
  
    }  
}  

Java类：


import javax.crypto.Cipher;  
import javax.crypto.SecretKey;  
import javax.crypto.SecretKeyFactory;  
import javax.crypto.spec.DESKeySpec;  
import javax.crypto.spec.IvParameterSpec;  
  
public class DESCryptUtil {  
    private static final String key = "20100728";  
      
    // 解密数据  
    public static String decrypt(String message) throws Exception {  
        byte[] bytesrc = stringToBytes(message);  
        Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");  
        DESKeySpec desKeySpec = new DESKeySpec(key.getBytes("UTF-8"));  
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");  
        SecretKey secretKey = keyFactory.generateSecret(desKeySpec);  
        IvParameterSpec iv = new IvParameterSpec(key.getBytes("UTF-8"));  
  
        cipher.init(Cipher.DECRYPT_MODE, secretKey, iv);  
  
        byte[] retByte = cipher.doFinal(bytesrc);  
        return new String(retByte, "UTF-8");  
    }  
  
    //加密数据  
    public static byte[] encrypt(String message) throws Exception {  
        Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");  
  
        DESKeySpec desKeySpec = new DESKeySpec(key.getBytes("UTF-8"));  
  
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");  
        SecretKey secretKey = keyFactory.generateSecret(desKeySpec);  
        IvParameterSpec iv = new IvParameterSpec(key.getBytes("UTF-8"));  
        cipher.init(Cipher.ENCRYPT_MODE, secretKey, iv);  
  
        return cipher.doFinal(message.getBytes("UTF-8"));  
    }  
  
    //String转Byte数组  
    public static byte[] stringToBytes(String temp) {  
        byte digest[] = new byte[temp.length() / 2];  
        for (int i = 0; i < digest.length; i++) {  
            String byteString = temp.substring(2 * i, 2 * i + 2);  
            int byteValue = Integer.parseInt(byteString, 16);  
            digest[i] = (byte) byteValue;  
        }  
  
        return digest;  
    }  
      
    //Byte数组转String  
    public static String bytesToString(byte b[]) {  
        StringBuffer hexString = new StringBuffer();  
        for (int i = 0; i < b.length; i++) {  
            String plainText = Integer.toHexString(0xff & b[i]);  
            if (plainText.length() < 2)  
                plainText = "0" + plainText;  
            hexString.append(plainText);  
        }  
  
        return hexString.toString();  
    }  
  
    public static void main(String[] args) throws Exception {  
        String key = "20100728";  
        String value = "阿\"飞";  
        System.out.println("加密的数据:" + value);  
        String a = bytesToString(encrypt(value)).toUpperCase();  
        System.out.println("加密后的数据:" + a);    
        String b = decrypt(a);  
        System.out.println("解密后的数据:" + b);  
        System.out.println(b.length());  
    }  
}