Decryption of Notification Data

Hi,

Yes, I've selected pdu and comments in Notification view but its showing Encrypted Data.

Issues may be something like if i have added multiple devices and they may have different keys, different target address, which one is used for decryption ?

i tried to decrypt data with source code but the result was not as intended.
here is what i tried :

public void DecryptData()
{

try
{
client.ClientAddress = 30;
client.Authentication = Authentication.HighGMAC;
client.Ciphering.BlockCipherKey = GXCommon.HexToBytes("Some key");
client.Ciphering.AuthenticationKey = GXCommon.HexToBytes("Some key");
client.Ciphering.DedicatedKey = GXCommon.HexToBytes("Some key");
client.Ciphering.SystemTitle = GXCommon.HexToBytes("Title");
client.Ciphering.Security = Security.AuthenticationEncryption;
client.UseLogicalNameReferencing = true;
int logicaladdress = Convert.ToInt32("0");
int physicaladdressint = Convert.ToInt32(1);
client.ServerAddress = GetServerAddress(logicaladdress, physicaladdressint, 1);
client.ServerAddressSize = (byte)1;
GXByteBuffer ciphertext = new GXByteBuffer();
ciphertext.Set(GXCommon.HexToBytes("D482001E3000000935ECD4CADA3280D3628ADBF6AE4CCCC2B54A33B9299F637B0C80"));
uint IC = 2357;
AesGcmParameter p = new AesGcmParameter((byte)Command.DedGetResponse, client.Ciphering.Security, IC, client.Ciphering.SystemTitle, client.Ciphering.BlockCipherKey, client.Ciphering.AuthenticationKey);
GXByteBuffer data2 = new GXByteBuffer();
byte[] data3 = GXDLMSChippering.DecryptAesGcm(p, ciphertext);
data2.Set(data3);
string Result = data2.ToString();
MessageBox.Show(Convert.ToString(Result));

}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
reply.Clear();
}
}

Can you suggest ?

Yes, the problem is there when i have only one meter.
This is what i receive.
May be i am doing something wrong ? Or the meter is sending something which you do not expect ?
Data downloading and other communication is all OK.
As the trace and Log data are also received in the same way.. so i was supposing the GXDLMSDirector doesn't decrypt these data before showing.

01/15/2019 3:57:46 PM
<GeneralGloCiphering>
<SystemTitle Value="474F4500007BE512" />
<CipheredService Value="3000000001B3C3A79A2F3EDD38364345044F3F5B295840F9DDC23AA4DDA70CF57C3AD6F75F5601940C5C90A7768AFDFEB9405C0B666B18BB1CF5DCAABA3A39DF4F0EB87C79E27C50FD1E22078D160F06417000736A4925779630FFFC271F6D2D4B789B03D6C14E746C3CA550FEEE90F239E150B1EF54F77A025E9A43A7DE3C65C0" />
</GeneralGloCiphering>

Client disconnected: 10.78.163.40:38042

Let me add the source code of Notification window from GXDLMSDirector,

try
{
//Show as PDU.
eventsTranslator.PduOnly = NotificationPdu.Checked;
eventsData.Set((byte[])e.Data);
GXByteBuffer pdu = new GXByteBuffer();
InterfaceType type = GXDLMSTranslator.GetDlmsFraming(eventsData);
StringBuilder sb = new StringBuilder();
while (eventsTranslator.FindNextFrame(eventsData, pdu, type))
{
sb.Append(eventsTranslator.MessageToXml(eventsData));
pdu.Clear();
}
if (AutoReset.Checked)
{
EventsView.ResetText();
}
if (NotificationTimeMnu.Checked)
{
OnAddNotification(DateTime.Now.ToString() + Environment.NewLine + sb.ToString());
}
else
{
OnAddNotification(sb.ToString());
}
}
catch (Exception ex)
{
eventsData.Clear();
OnAddNotification(ex.Message);
}

I don't this only the translator will Decrypt the AES-128 Authenticated Encrypted Data ?