Serial recovery & encryption & swap fails to build

[sw]

We encountered this issue on Nordic's fork (https://github.com/nrfconnect/sdk-mcuboot) but I believe upstream is affected as well.

We are using the following Kconfig settings:

CONFIG_BOOT_ENCRYPT_EC256=y
CONFIG_MCUBOOT_SERIAL=y
CONFIG_SINGLE_APPLICATION_SLOT=n

I.e. swap between primary and secondary slot, encryption and serial recovery enabled.

The problem is that boot_serial.c::bs_upload() wants to call single_loader.c::boot_handle_enc_fw(), but the latter module is only built when CONFIG_SINGLE_APPLICATION_SLOT=y.

[nvlsianpu]

Encyption in serial recovery mode is limited to single slot mode. Ref. https://github.com/mcu-tools/mcuboot/pull/1255 For dual slot mode it is not implemented.

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[jimmyzumthurm]

@nvlsianpu @d3zd3z @de-nordic Are there any plans to support serial recovery of encrypted images using dual slot mode any time soon ?

[de-nordic]

@nvlsianpu @d3zd3z @de-nordic Are there any plans to support serial recovery of encrypted images using dual slot mode any time soon ?

@jimmyzumthurm You can log an issue/enhancement for that. It may get picked up if somebody finds time to do it. You can also propose your own implementation if you are up to the task.

[Gioelinho]

There are any news about serial recovery of encrypted images using dual slot mode ?