MITM Protection Option in nRF Connect for Desktop

RE: MITM Protection Option in nRF Connect for Desktop

ovrebekk — Mon, 09 Aug 2021 09:14:12 GMT

Hi again

According to the developer either side of the link can request MITM protection, so if the button on app side doesn't have an effect it should be because it is requested on the peripheral side.

Best regards
Torbjørn

RE: MITM Protection Option in nRF Connect for Desktop

ovrebekk — Wed, 21 Jul 2021 14:30:39 GMT

Hi Akash

Sorry for the slow response. Unfortunately most of the apps team is out on holiday, so I am afraid I will have to follow this up when they are back in August.

Best regards
Torbjørn

RE: MITM Protection Option in nRF Connect for Desktop

Akash Patel — Tue, 20 Jul 2021 22:42:18 GMT

Hi Torbjørn,

Any updates on this?

Regards,

Akash

RE: MITM Protection Option in nRF Connect for Desktop

ovrebekk — Tue, 13 Jul 2021 13:36:15 GMT

Hi Akash

Good point, I see the same here ;)

I will have to check with the developers what the logic is behind this checkbox. Normally you want to use authentication by default, but then one might question why the box is there if it doesn't change anything.

If I don't hear from them by tomorrow I will try to hook up my sniffer and see if I can spot any difference in the packet exchange.

Best regards
Torbjørn

RE: MITM Protection Option in nRF Connect for Desktop

Akash Patel — Mon, 12 Jul 2021 17:13:50 GMT

Hi Torbjørn,

Yes I am seeing the passkey in the log and I am able to enter it in nRF Connect for Desktop and that works fine. What I meant to say is that even if I don't check the MITM protection checkbox, I still see this. So what is the difference between with and without MITM protection? Is it always doing MITM protection even if you don't check the box?

Regards,

Akash

RE: MITM Protection Option in nRF Connect for Desktop

ovrebekk — Mon, 12 Jul 2021 07:45:46 GMT

Hi Akash

I just tried the peripheral_hids_keyboard example in NCS v1.6.0, and it seems to work for me:

A passkey is printed in the log, and I have to enter this in nRF Connect in order to pair with MITM enabled.

Are you not seeing any of this?

Best regards
Torbjørn