如何将Java TripleDES解密函数转换为C＃

Question

我在Java中有一个功能TripleDES解密

public static String decrypt(String key, String data) throws Exception {
        Cipher cipher = Cipher.getInstance("TripleDES");
        MessageDigest md5 = MessageDigest.getInstance("MD5");
        md5.update(key.getBytes(), 0, key.length());
        String keymd5 = new BigInteger(1, md5.digest()).toString(16).substring(0, 24);
        System.out.println("keymd5 = " + keymd5);
        SecretKeySpec keyspec = new SecretKeySpec(keymd5.getBytes(), "TripleDES");
        cipher.init(Cipher.DECRYPT_MODE, keyspec);
        //BASE64Decoder decoder = new BASE64Decoder();
        //byte[] raw = decoder.decodeBuffer(data);
        Base64 decoder = new Base64();
        byte[] raw = decoder.decode(data.getBytes());
        byte[] stringBytes = cipher.doFinal(raw);
        String result = new String(stringBytes);
        System.out.println("result = " + result);
        return result;
    }

我尝试将其转换为下面的C＃函数

public static string decrypt(string key, string dataen)
        {
            try
            {
                byte[] keydata = Encoding.UTF8.GetBytes(key);
                MD5 md5 = new MD5CryptoServiceProvider();
                byte[] result = md5.ComputeHash(keydata);
                StringBuilder sb = new StringBuilder();
                for (int i = 0; i < result.Length; i++)
                {
                    sb.Append(result[i].ToString("x2"));
                }
                string md5String = sb.ToString();
                byte[] tripleDesKey = Encoding.UTF8.GetBytes(md5String.Substring(0, 24));


                TripleDES tripdes = TripleDESCryptoServiceProvider.Create();
                tripdes.Mode = CipherMode.ECB;
                tripdes.Key = tripleDesKey;

                ICryptoTransform ict = tripdes.CreateDecryptor();
                byte[] cryptoByte = ict.TransformFinalBlock(Encoding.UTF8.GetBytes(dataen), 0, 8);
                string data = Convert.ToBase64String(cryptoByte, 0, cryptoByte.GetLength(0)).Trim();
                return Encoding.UTF8.GetString(Convert.FromBase64String(data));
            }
            catch (Exception ex)
            {
                return dataen;
            }
        }

它不起作用，抛出“错误数据”异常

示例：

key =“ g0k9n58y1cl02bc1qv79sot3ihbmtwko”

encryptData =“ JFBUJrlauiNrjVNeNKIrCuXbhFWkreqxJNpsMCspLiiE / QwQ8wuksuK6qpkISD73lhCKrwQx2vpU \ ncmQHK0lAmyP8zXN71SaQe2riKZvy43 {im4VSE4KVK4}

如何将上述Java TripleDES解密功能转换为C＃ 谢谢！