【加解密】关于DES加密算法的JAVA加密代码及C#解密代码

package webdomain;

import java.security.Key;
import java.security.spec.AlgorithmParameterSpec;

import javax.crypto.Cipher;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;
import javax.crypto.spec.IvParameterSpec;

import Decoder.BASE64Encoder;

public class CrytoTools {
private static final byte[] DESkey = "此处8位密钥--A".getBytes();  //
private static final byte[] DESIV = "此处另外8位密钥--B".getBytes(); //

static AlgorithmParameterSpec iv = null;
private static Key key = null;

public CrytoTools() throws Exception {
DESKeySpec keySpec = new DESKeySpec(DESkey);
iv = new IvParameterSpec(DESIV);
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
key = keyFactory.generateSecret(keySpec);
}

public String encode(String data) throws Exception{
Cipher enCipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
enCipher.init(Cipher.ENCRYPT_MODE , key,iv);
byte[] pasByte = enCipher.doFinal(data.getBytes("utf-8"));
BASE64Encoder base64Encoder = new BASE64Encoder();
return base64Encoder.encode(pasByte);
}
}

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Web;
using System.Text;

using System.Configuration;
using System.Security.Cryptography;
using System.IO;

namespace AppService
{
public class DES
{
// DES復号化
public static string DESDeCode(string encryptedString, string sKey)
{
try
{
byte[] btKey = Encoding.Default.GetBytes("此处8位密钥--A");        // キー
byte[] btIV = Encoding.Default.GetBytes("此处另8位密钥--B");   // キー
DESCryptoServiceProvider des = new DESCryptoServiceProvider();

using (MemoryStream ms = new MemoryStream())
{
byte[] inData = Convert.FromBase64String(encryptedString);
try
{
using (CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(btKey, btIV), CryptoStreamMode.Write))
{
cs.Write(inData, 0, inData.Length);
cs.FlushFinalBlock();
}
return Encoding.UTF8.GetString(ms.ToArray());
}
catch
{
return encryptedString;
}

}
}
catch {
return encryptedString;
}
}
}
}