openldap MD5密码

 MD5 m5 = new MD5CryptoServiceProvider();
        byte[] bs = m5.ComputeHash(System.Text.Encoding.Default.GetBytes("hello"));
       // string hex = BitConverter.ToString(bs).Replace("-", string.Empty);
        string aa = Convert.ToBase64String(bs);
        Console.WriteLine(aa);

传给ldap的时候，需要加：类似的前缀
{MD5}Xr4ilOzQ4PCOq3aQ0qbuaQ==