Example code for changing HLS-5 keys?

Hi Mikko,

Thanks.

I tried to build Gurux.DLMS.cpp/GuruxDLMSClientExample but it gave me this error:

git clone https://github.com/Gurux/Gurux.DLMS.cpp.git

joe@joe-virtual-machine:~/Gurux.DLMS.cpp/GuruxDLMSClientExample$ git pull
Already up to date.
joe@joe-virtual-machine:~/Gurux.DLMS.cpp/GuruxDLMSClientExample$ git diff
joe@joe-virtual-machine:~/Gurux.DLMS.cpp/GuruxDLMSClientExample$

joe@joe-virtual-machine:~/Gurux.DLMS.cpp/GuruxDLMSClientExample$ make
src/communication.cpp: In member function ‘int CGXCommunication::InitializeOpticalHead()’:
src/communication.cpp:701:9: error: ‘options’ was not declared in this scope; did you mean ‘optind’?
701 | options.c_cflag = CS8 | CREAD | CLOCAL;
| ^~~~~~~
| optind
make: *** [makefile:31: obj/communication.o] Error 1
joe@joe-virtual-machine:~/Gurux.DLMS.cpp/GuruxDLMSClientExample$

Thank you!

Hi Mikko,

That fixed the CPP version (Gurux.DLMS.cpp/GuruxDLMSClientExample).

That part is working now (connect/read object).

This is the command line I used and worked:

joe@joe-virtual-machine:~/Gurux.DLMS.cpp/GuruxDLMSClientExample/bin$ sudo ./gurux.dlms.client.bin -S /dev/ttyUSB0 -c 32 -s 156 -a HighGMAC -C AuthenticationEncryption -T 73797374656D7469 -A 00000000000000000000000000000000 -B 00000000000000000000000000000000 -v 0.0.43.1.2.255 -t Verbose

Thank you!

Back to the original problem: Changing the HLS-5 Keys.

Can you give some more pointers/clues on how to change these keys with GXDLMSDirector and with the CPP client?

I do not see a spot in GXDLMSDirector that looks like the place to change these keys in the meter.

I can change the following keys with the Holley GUI tool, but I need to be able to do so with the C/CPP Client too.

GUEK
BK
AK
M-KEY

It appears these two of the 4 keys are the only ones that need to match:

GUEK
AK

---

Can you give some more pointers/clues on how to change these keys with GXDLMSDirector and with the CPP client?

---

Hi Mikko,

1.
In my object:

SecuritySetup --> "0.0.43.0.0.255 Ch. 0 Security setup #0"

When I change the Policy to AuthenticatedEncrypted and click on the Activate button beside it, the Policy immediately changes back to None.

How can I get the Policy to stay on AuthenticatedExcrypted after I click on the Activate button?

2.
In my object:

SecuritySetup --> "0.0.43.0.0.255 Ch. 0 Security setup #0"

When I change my Suite to Suite0 ---> Update Key... ---> Type: Authentication

Enter,
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
in both the Key and KEK boxes, uncheck both ASCII boxes and click on OK,

then I get Action accomplish.

But, if I Enter

00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01
in both the Key and KEK boxes, uncheck both ASCII boxes and click on OK,

then I get Access Error : Device reports a temporary failure.

Client System Title: 73 79 73 74 65 6D 74 69
Server System Title:

How can I change the Keys to something other than ALL zeros?