multiprotocol - Use openThread Crypto and BLE LESC Crypto

RE: multiprotocol - Use openThread Crypto and BLE LESC Crypto

bubble23 — Mon, 10 Jan 2022 07:54:44 GMT

Yes, that is what I am looking for! The example helps me a lot! Thanks a lot!

RE: multiprotocol - Use openThread Crypto and BLE LESC Crypto

Sigurd Hellesvik — Fri, 07 Jan 2022 14:36:39 GMT

After some trying, I were not able to make a functional example from the tutorial today.
Let me know if you are still struggling with this next week, and I will give it another try on Tuesday.

I found however, that the BLE UART and Thread MTD CoAP Client Example have LESC enabled in the settings. Maybe this could be useful for you.

Regards,
Sigurd Hellesvik

RE: multiprotocol - Use openThread Crypto and BLE LESC Crypto

bubble23 — Fri, 07 Jan 2022 09:09:45 GMT

Hi,

I started testing the proposed project for myself and discovered when adding the libs that there are several variants for the mbedTLS variants. Here is a software-only variant (infocenter.nordicsemi.com/.../thread_openthread_libraries.html, I will test further and report...

RE: multiprotocol - Use openThread Crypto and BLE LESC Crypto

Sigurd Hellesvik — Thu, 06 Jan 2022 12:27:28 GMT

To double check that this is possible, I am applying the below tutrial on adding Thread to Bluetooth Low Energy to the Heart Rate Application.

I have not been able to build it successfully yet, but will return when I have done so.
Feel free to try to do this yourself as well.

Regards,
Sigurd Hellesvik

RE: multiprotocol - Use openThread Crypto and BLE LESC Crypto

bubble23 — Wed, 05 Jan 2022 13:18:58 GMT

Hello Sigurd,
is it possible to run both at the same time? Maybe with restrictions that the "nRF Crypto " uses a software backend and not the cc310 backend or can possibly the "libmbedcrypto_cc310_backend.a" from Thread be used for BLE LESC? I would be very grateful for a hint.

Greetings

RE: multiprotocol - Use openThread Crypto and BLE LESC Crypto

Sigurd Hellesvik — Wed, 05 Jan 2022 07:06:48 GMT

No, we do not have any finished examples for LESC+Thread.

Regards,
Sigurd Hellesvik

RE: multiprotocol - Use openThread Crypto and BLE LESC Crypto

bubble23 — Mon, 03 Jan 2022 14:23:53 GMT

Hello Sigurd,
thank you very much for your reply. I have done the example on "Adding Dynamic multiprotocol Thread suppport to BLE examples". Only unfortunately it does not solve my problem. I mainly focused on the Reference example here. "<InstallFolder>\examples\multiprotocol\ble_thread_dyn_mtd_coap_cli", which is the modified version of " ble_app_uart". This version does not include LESC encryption for BLE. Do you know of an example where LESC and Thread are used together?

Regards

RE: multiprotocol - Use openThread Crypto and BLE LESC Crypto

Sigurd Hellesvik — Tue, 28 Dec 2021 14:32:47 GMT

Hi again

Just talked to a colleague, and we have Thread Multiprotocol samples, as well as a guide on Adding dynamic multiprotocol Thread support to BLE examples.

If I were you, I would start by following this guide and see if it works after you have done so.

Let me know if you still struggle with the issue after that, and good luck!

Regards,
Sigurd Hellesvik

RE: multiprotocol - Use openThread Crypto and BLE LESC Crypto

Sigurd Hellesvik — Tue, 28 Dec 2021 14:10:46 GMT

When our developers get back from their holiday vacations, I will ask them if they know about this. This will likely be the first week of January.

In the meantime, havea look at Prebuilt OpenThread libraries and OpenThread application developement.
It will likely be important to make the cryptographic libraries thread-safe if you intend to use it for BLE and OpenThread simultaneously.

If you want me to debug the issue more directly, I can try to do so if you provide an edited Thread sample with only the changes needed to reproduce your error (sdk_config.h and added files).

Regards,
Sigurd Hellesvik