NRF54LM20 CRACEN SilexPK Header Include Issues

RE: NRF54LM20 CRACEN SilexPK Header Include Issues

ashlin4010 — Tue, 07 Apr 2026 23:19:32 GMT

Thank you for your work on this and the PR. It is appreciated.

RE: NRF54LM20 CRACEN SilexPK Header Include Issues

Amanda Hsieh — Tue, 07 Apr 2026 12:42:50 GMT

Hi,

The team did some testing, and there are no issues with these included in NCS. The problem here is that you are trying to use wolfssl, which is not really supported in NCS, and it does some weird header injecting. So the answer to your original question of: "What is the status of CRACEN code? It did/does not build in v3.2.3 and v3.3.0-preview3, is it meant to?" is that it works perfectly fine with NCS. The team has created a PR that makes your sample build here: https://github.com/nrfconnect/sdk-nrf/pull/27921, since it is a nice cleanup anyways, but you should use the PSA api when doing crypto in NCS.

-Amanda H.

RE: NRF54LM20 CRACEN SilexPK Header Include Issues

ashlin4010 — Thu, 02 Apr 2026 07:59:06 GMT

Sorry for the lack of info, I was quite busy at the time.

I have created a very minimal example of the issues and have included a patch file that resolves the issue.
The patch file is not to be considered as a proper fix, but it does help to highlight the problem.

Building and setup instructions are available in the README file.

Steps to reproduce are as follows (see README for specific commands, assumes you are on Linux):

Extract zip
Set workspace, west init etc
west build ... (will fail)
observe build errors
apply patch
west build (will succeed)

Environment
Board: nrf54lm20A & nrf54lm20B
SDK: v3.3.0-preview3
Toolchain: v3.2.1

Notes on preview3 & v3.2.3
Both versions have these issues; it's not a regression.
Preview 3 is actually an improvement, but still not 100% correct.

Source Files
/cfs-file/__key/communityserver-discussions-components-files/4/workspace_5F00_cracen.tar.gz

Thanks

RE: NRF54LM20 CRACEN SilexPK Header Include Issues

Amanda Hsieh — Wed, 01 Apr 2026 15:45:16 GMT

Hi,

Could you elaborate on how you build? We just tested this on NCS v3.3.0-preview3-branch, and it builds fine using west. Guess you might do something different? Could you provide a simple project to help us reproduce the issue? In which release did it stop working? Could you try to delete the build folder manually to get a completely clean build?

Regards,
Amanda H.