Smart Meter DSMR Component Decryption supported?

Feature Requests
1

Hi,

Trying to find out if the Luxembourg smart meter which has a P1 port, can be integrated into Home Assistant.

In their specifications lux P1 specs, they say the following:

P1 protocol is a plain text protocol: it is required to secure the link to ensure end user data confidentiality. In deviation to DSMR P1, an encryption layer is added over the P1 protocol. This encryption layer is based on DLMS security suite 0 algorithm: AES128-GCM

Does the HA DSMR Component support decryption of the telegrams ?

2

HA DSMR component used the dsmr_parser project: https://github.com/ndokter/dsmr_parser It would first need to be supported there before it can be integrated in HA.

3

It got it working in domoticz. Perhaps this can inspire somebody for the decryption in HA?

4

Can you provide more details? I’m trying to connect to my meter (Iskra AM550), which also uses DLMS/COSEM protocol and has encrypted port, but for now without success…

5

Did you manage to connect Iskra AM550? If so, please share.

6

I did, but in a completely different way (including custom firmware, which kind of doesn’t exist anymore and MQTT). See here for details.