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[nrf noup] Kconfig: create duplicate of sign key #129

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[nrf noup] Kconfig: create duplicate of sign key #129

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19 changes: 19 additions & 0 deletions zephyr/Kconfig
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Expand Up @@ -33,6 +33,25 @@ config MCUBOOT_FLASH_WRITE_BLOCK_SIZE
int
default $(dt_node_int_prop_int,$(DT_CHOSEN_ZEPHYR_FLASH),write-block-size)

config BOOT_SIGNATURE_KEY_FILE
# Duplicate from boot/zephyr/Kconfig to expose this option to the parent
# image. Without this copy, it is not possible for the parent image to
# be signed if the MCUBoot child image is not built from source.
string "PEM key file"
default "root-ec-p256.pem" if BOOT_SIGNATURE_TYPE_ECDSA_P256
default "root-ed25519.pem" if BOOT_SIGNATURE_TYPE_ED25519
default "root-rsa-3072.pem" if BOOT_SIGNATURE_TYPE_RSA && BOOT_SIGNATURE_TYPE_RSA_LEN=3072
default "root-rsa-2048.pem" if BOOT_SIGNATURE_TYPE_RSA && BOOT_SIGNATURE_TYPE_RSA_LEN=2048
help
You can use either absolute or relative path.
In case relative path is used, the build system assumes that it starts
from the directory where the MCUBoot KConfig configuration file is
located. If the key file is not there, the build system uses relative
path that starts from the MCUBoot repository root directory.
The key file will be parsed by imgtool's getpub command and a .c source
with the public key information will be written in a format expected by
MCUboot.

endif # BOOTLOADER_MCUBOOT

config DT_FLASH_WRITE_BLOCK_SIZE
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