Authentication required when running without Encryption

Hi again

The reason why we want to run without encryption is because we need to see in Wireshark what we send when we try to set WeekProfile in the passive calendar in the meter. When we try this, we get the error "Device reports unmatched type". And when we set Week profile with Kaifas tool SmartSet we get no error. Maybe you have an idea why we get "Device reports unmatched type"?

Regards
Helena

Hi

I think I´ve found the problem why I can´t set Week profile in the meter. It was because the wrong DataType (Array) was set in GetWeekProfileTable(), When I changed to Structure it went ok.

static byte[] GetWeekProfileTable(GXDLMSSettings settings, GXDLMSWeekProfile[] target)
{
GXByteBuffer data = new GXByteBuffer();
data.SetUInt8((byte)DataType.Array);
if (target == null)
{
//Add count
GXCommon.SetObjectCount(0, data);
}
else
{
int cnt = target.Length;
//Add count
GXCommon.SetObjectCount(cnt, data);
foreach (GXDLMSWeekProfile it in target)
{
data.SetUInt8((byte)DataType.Structure);

Is this something that has been fixed in a later version of Gurux? Or is it maybe the meter that handles this wrong?

Regards
Helena

Hello

I also got the same error "Device reports unmatched type" when I tried to set SpecialDays table. But when I added DataType.Array as last argument to client.Method in Insert (GXDLMSSpecialDaysTable) it started working ok.
Is this a bug in Gurux, or am I doing something else wrong?

Regards
Helena

Hi
No, I didn´t change that one. I changed this one from Array to Structure:

foreach (GXDLMSWeekProfile it in target)
{
data.SetUInt8((byte)DataType.Structure);

Regards
Helena

Hi

I have updated to the latest version and I can see that it´s Structure, so that should be ok now.

What about GXDLMSSpecialDaysTable? I get the same error "Device reports unmatched type" when I try to set SpecialDays table. But when I added DataType.Array as last argument to client.Method in Insert (GXDLMSSpecialDaysTable) it started working ok.

public byte[][] Insert(GXDLMSClient client, GXDLMSSpecialDay entry)
{
GXByteBuffer bb = new GXByteBuffer();
bb.SetUInt8(DataType.Structure);
bb.SetUInt8(3);
GXCommon.SetData(null, bb, DataType.UInt16, entry.Index);
GXCommon.SetData(null, bb, DataType.OctetString, entry.Date);
GXCommon.SetData(null, bb, DataType.UInt8, entry.DayId);
return client.Method(this, 1, bb.Array(),DataType.Array);
}

Regards
Helena

Hi
Thank you for the new release.

I still can´t get the communication to work without Encryption. Could you maybe be more specific in what I need to change? This is how I try to create the client with Ciphering.Security set to Security.Authentication. But this will end up with the following error: "Authentication is required"

gxdlmsClient = new GXDLMSSecureClient(true, 0x01, 0x01, Authentication.HighGMAC,
authenticationSettings.UniqueSecret, InterfaceType.WRAPPER)
{
ProposedConformance = Conformance.Action |
Conformance.EventNotification |
Conformance.SelectiveAccess | Conformance.Set |
Conformance.Get | Conformance.InformationReport |
Conformance.MultipleReferences |
Conformance.BlockTransferWithAction |
Conformance.BlockTransferWithSetOrWrite |
Conformance.BlockTransferWithGetOrRead,
MaxReceivePDUSize = 0x00C8,
Password = authenticationSettings.UniqueSecret.ToByteArray(),
CtoSChallenge = GXDLMSTranslator.HexToBytes("D7C3FAF279A8D3A3EFF1CE601E8A663F")
};
if (authenticationSettings.InvocationCounter > 0)
{
((GXDLMSSecureClient)gxdlmsClient).Ciphering.InvocationCounter = authenticationSettings.InvocationCounter;
}
((GXDLMSSecureClient) gxdlmsClient).Ciphering.SystemTitle = authenticationSettings.SystemTitle.ToByteArray();
((GXDLMSSecureClient) gxdlmsClient).Ciphering.Security = Security.Authentication;
((GXDLMSSecureClient)gxdlmsClient).Ciphering.AuthenticationKey = authenticationSettings.AuthenticationKey.ToByteArray();
((GXDLMSSecureClient)gxdlmsClient).Ciphering.BlockCipherKey = authenticationSettings.UnicastKey.ToByteArray();

Regards
Helena

Hi
HighGMAC is supported, that´s the common way that we communicate with the meters. But when I want to look at the DLMS packets with Wireshark I need to run without encryption. The question is, how can this be done?
Regards
Helena