求大神把java代码DES加密函数，翻译成C#版的
网上搜索过，但加密出来的结果 跟java的死活不一样，头都晕了，哪位大神可以翻译成C#版的，万分感谢啊！
java代码如下：
 

Java code

public static String DESDecrypt(String data, String key, String encoding)
{
    String edata = data;
    try
    {
        MessageDigest digest = MessageDigest.getInstance("MD5");

        digest.update(key.getBytes(encoding));
        DESedeKeySpec dks = new DESedeKeySpec(convert16To24(digest.digest()));
        SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DESede");
        SecretKey securekey = keyFactory.generateSecret(dks);
        Cipher cipher = Cipher.getInstance("DESede/ECB/PKCS5Padding");
        cipher.init(Cipher.DECRYPT_MODE , securekey, new SecureRandom());
        if (!data.endsWith( "=" ))
        {
            data = URLDecoder.decode(data, encoding);
        }
        edata = new String(cipher.doFinal(BASE64Decrypt(data)), encoding);
    }
    catch (Exception e)
    {
        e.printStackTrace();
    }
    return edata;
}


/**
* BASE64 解密
*
* @param key
* @return
* @throws Exception
*/
public static byte [] BASE64Decrypt(String data)
{
    byte [] edata = null ;
    try
    {
        edata = ( new BASE64Decoder()).decodeBuffer(data);
    }
    catch (Exception e)
    {
        e.printStackTrace();
    }
    return edata;
}


/**
* 把 16 位凑成 24 位数组。
*
* @param okey
* @return
*/
private static  byte [] convert16To24(byte [] okey)
{
    byte [] dkey = new byte [24];
    for (int i = 0; i < dkey. length ; i++)
    {
        dkey[i] = okey[i % 16];
    }
    return dkey;
}

------解决方案--------------------
http://www.cnblogs.com/weekzero/archive/2007/12/05/983143.html
------解决方案--------------------
c/c++也可以啊
------解决方案--------------------
路过...
------解决方案--------------------
引用一楼
des是常用的对称加密解密方法，下面是C#下的核心代码
/// <summary>
/// 进行DES加密。
/// </summary>
/// <param name="pToEncrypt">要加密的字符串。</param>
/// <param name="sKey">密钥，且必须为8位。</param>
/// <returns>以Base64格式返回的加密字符串。</returns>
public string Encrypt(string pToEncrypt, string sKey)
{
using (DESCryptoServiceProvider des = new DESCryptoServiceProvider())
{
byte[] inputByteArray = Encoding.UTF8.GetBytes(pToEncrypt);
des.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
des.IV = ASCIIEncoding.ASCII.GetBytes(sKey);
System.IO.MemoryStream ms = new System.IO.MemoryStream();
using (CryptoStream cs = new CryptoStream(ms, des.CreateEncryptor(), CryptoStreamMode.Write))
{
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
cs.Close();
}
string str = Convert.ToBase64String(ms.ToArray());
ms.Close();
return str;
}
}

/// <summary>
/// 进行DES解密。
/// </summary>
/// <param name="pToDecrypt">要解密的以Base64</param>
/// <param name="sKey">密钥，且必须为8位。</param>
/// <returns>已解密的字符串。</returns>
public string Decrypt(string pToDecrypt, string sKey)
{
byte[] inputByteArray = Convert.FromBase64String(pToDecrypt);
using (DESCryptoServiceProvider des = new DESCryptoServiceProvider())
{
des.Key = ASCIIEncoding.ASCII.GetBytes(sKey);