Matter commissioning fails at step 8 : AttestationVerification

RE: Matter commissioning fails at step 8 : AttestationVerification

abollaert — Tue, 29 Nov 2022 13:24:21 GMT

https://github.com/project-chip/connectedhomeip/commit/faad9e179293775110f09692cd1c28e0d71b792f is the commit that updates the certs (if you build your chip-tool using a version that follows this commit it will fail to commission your device).

RE: Matter commissioning fails at step 8 : AttestationVerification

abollaert — Tue, 29 Nov 2022 13:22:36 GMT

Update : this problem seems to have been caused by a version conflict. I used a chip-tool built from the official repo (https://github.com/project-chip) with device firmware build from NCS v2.1.2, and it would seem that the certs used differ (also see https://github.com/google-home/sample-app-for-matter-android/issues/29).

I've now built a chip-tool from the Nordic fork of the CHIP codebase (https://github.com/nrfconnect/sdk-connectedhomeip, tag v2.1.2) and that fixed the problem.

RE: Matter commissioning fails at step 8 : AttestationVerification

abollaert — Thu, 24 Nov 2022 09:01:57 GMT

Hi Maria,

I'm just using the same code as the examples:

SetDeviceAttestationCredentialsProvider(Examples::GetExampleDACProvider());

So I'm assuming these are test certificates.

Then I just try to do a BLE pairing (with OTBR):

./chip-tool pairing ble-thread 100 hex:0e080000000000010000000300000f35060004001fffe0020811111111222222220708fd87dbd714786b2b051000112233445566778899aabbccddeeff030e4f70656e54687265616444656d6f010212340410445f2b5ca6f2a93a55ce570a70efeecb0c0402a0f7f8 20202021 3840

And it fails with error 601 (on 2.1.1 and 2.1.2, using the same code compiled with 2.1.0 works).

I was planning on using development certs first, and add in my own certificates later.

Kind regards and thanks,

-Alex

RE: Matter commissioning fails at step 8 : AttestationVerification

Maria Gilje — Wed, 23 Nov 2022 12:34:36 GMT

Hello Alex,

Sorry for the delay.

The error code 601 means that no certificate is found. All error codes for Attestation Verification related errors are found in an enum here.

Are you using test certificates or your own?

Kind Regards

RE: Matter commissioning fails at step 8 : AttestationVerification

abollaert — Fri, 18 Nov 2022 14:03:48 GMT

Update : if I revert NCS back to v2.1.0) commissioning works. Starting from v2.1.1 something was broken it seems.