RE: Encrypted file with mcuboot

Aurele — Sat, 20 Sep 2025 13:53:35 GMT

Hi,

Thank you so much, it is working now.

[quote userid="77782" url="~/f/nordic-q-a/124475/encrypted-file-with-mcuboot/549325"]Please be aware that Creation of the the zip file is a nRF Connect SDK specific feature which is not tested with encrypted images (encrypted DFU is not officially supported in our SDK).[/quote]

What is the impact of this? Since encrypted DFU is not officially supported in your SDK, does it mean that this feature could face regressions if I upgrade to a newer version of the nRF Connect SDK in the future?

Regards,

RE: Encrypted file with mcuboot

Amanda Hsieh — Fri, 19 Sep 2025 13:20:13 GMT

Hi,

Try to add CONFIG_BOOT_ECDSA_TINYCRYPT=y in the /app/sysbuild/mcuboot.conf.

Please be aware that Creation of the the zip file is a nRF Connect SDK specific feature which is not tested with encrypted images (encrypted DFU is not officially supported in our SDK).

Regards,
Amanda H.