[EFR32] Commissioning is failing at commissioning step 13 : Unsupported certificate format

[shgutte]

Problem

While doing the commissioning using the BLE-wifi after resetting the DUT sometimes commissioning failed with an error unsupported certificate format. this is causing an interrupt in the automation testing of the test harness.

App used - lock app
Platform - Chip-tool - RPI-4, 8GB RAM
DUT - EFR32 + WF200 , EFR32 +RS9116
Network - Ble-wifi

Logs
chip-tool-step13-error.txt
device-step13-error.txt

[turon]

Some initial log analysis:

[chip-tool]

[1658315004.845157][5619:5624] CHIP:CTL: Device returned status 3 on receiving the NOC
[1658315004.845228][5619:5624] CHIP:CTL: Add NOC failed with error ../../src/controller/CHIPDeviceController.cpp:1271: CHIP Error 0x00000050: Unsupported certificate format
[1658315004.845302][5619:5624] CHIP:CTL: Error on commissioning step 'SendNOC': '../../src/controller/CHIPDeviceController.cpp:1271: CHIP Error 0x00000050: Unsupported certificate format'
[1658315004.845359][5619:5624] CHIP:CTL: Failed to perform commissioning step 13
[165

NOCResponse(Status=3) is InvalidNOC from device. I couldn't find the NOC bytes in the log. Could you post the malformed NOC TLV hexstream to this issue?

Please add --trace_decode 1 to your chip-tool invocations so we can see outbound commands such as the AddNOC and see the malformed certificate.

The NOC will be the first parameter (0) of CommandPathIB = //EP0/Cluster=0x3E/Command=6.