C# 标准的MD5加密32位

标准的MD5加密32位小写的：

    public static string GetMD5(string myString)
        {
            MD5 md5 = new MD5CryptoServiceProvider();
            //byte[] fromData = System.Text.Encoding.Unicode.GetBytes(myString);
            byte[] fromData = System.Text.Encoding.UTF8.GetBytes(myString);//
            byte[] targetData = md5.ComputeHash(fromData);
            string byte2String = null;

            for (int i = 0; i < targetData.Length; i++)
            {
                byte2String += targetData[i].ToString("x");
            }

            return byte2String;
        }