转换“ AES-128-ECB”从PHP到C＃的加密代码

Question

我有一个要求我需要将一些PHP代码转换为C＃..以下是需要转换的PHP代码：

$data = "Hello World!";

$key = "RTc0MDkwMEEwMDYxQjc4Mg=="

$encRaw = openssl_encrypt($data, 'AES-128-ECB', $key, OPENSSL_RAW_DATA);

要转换此OPENSSL加密，我使用以下C＃代码：

    static byte[] EncryptStringToBytes_Aes(string plainText, byte[] Key)
    {
        // Check arguments.
        if (plainText == null || plainText.Length <= 0)
            throw new ArgumentNullException("plainText");
        if (Key == null || Key.Length <= 0)
            throw new ArgumentNullException("Key");

        byte[] encrypted;

        // Create an Aes object
        // with the specified key and IV.
        using (Aes aesAlg = Aes.Create())
        {
            aesAlg.Key = Key;
            //aesAlg.IV = IV;

            // Create an encryptor to perform the stream transform.
            ICryptoTransform encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);

            // Create the streams used for encryption.
            using (MemoryStream msEncrypt = new MemoryStream())
            {
                using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
                {
                    using (StreamWriter swEncrypt = new StreamWriter(csEncrypt))
                    {
                        //Write all data to the stream.
                        swEncrypt.Write(plainText);
                    }
                    encrypted = msEncrypt.ToArray();
                }
            }
        }

        // Return the encrypted bytes from the memory stream.
        return encrypted;
    }

但是，以某种方式，这并没有给我同样的结果。 PHP功能正在返回。

有人可以帮助我确定我的代码中的问题吗？或建议我在代码中还要做些其他更改，以便得到类似的结果，即PHP功能正在返回。