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[nrf fromlist] cmake: mcuboot: SHA512/pure image signing #3074

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Merged
merged 2 commits into from
Aug 4, 2025
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[nrf fromlist] cmake: mcuboot: SHA512/pure image signing #3074

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3c403ca
Revert "[nrf noup] mcuboot: Add CONFIG_MCUBOOT_BOOTLOADER_USES_SHA512"
nordic-mik7 Jul 29, 2025
1a1f36f
[nrf fromtree] cmake: mcuboot: SHA512/pure image signing
nordic-mik7 Jul 23, 2025
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7 changes: 7 additions & 0 deletions cmake/mcuboot.cmake
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Original file line number Diff line number Diff line change
Expand Up @@ -152,6 +152,13 @@ function(zephyr_mcuboot_tasks)
set(imgtool_args --align ${write_block_size} ${imgtool_args})
endif()

# Set proper hash calculation algorithm for signing
if(CONFIG_MCUBOOT_BOOTLOADER_SIGNATURE_TYPE_PURE)
set(imgtool_args --pure ${imgtool_args})
elseif(CONFIG_MCUBOOT_BOOTLOADER_USES_SHA512)
set(imgtool_args --sha 512 ${imgtool_args})
endif()

# Extensionless prefix of any output file.
set(output ${ZEPHYR_BINARY_DIR}/${KERNEL_NAME})

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7 changes: 7 additions & 0 deletions modules/Kconfig.mcuboot
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Expand Up @@ -293,6 +293,13 @@ config MCUBOOT_BOOTLOADER_USES_SHA512
help
MCUboot has been compiled to verify images using SHA512.

config MCUBOOT_BOOTLOADER_SIGNATURE_TYPE_PURE
bool "Signature is verified over an image rather than sha of an image"
help
MCUboot has been compiled to verify images using pure signature
verification, i.e., the signature is verified over the image rather
than the SHA of the image.

config MCUBOOT_APPLICATION_FIRMWARE_UPDATER
bool "Application is firmware updater image"
depends on MCUBOOT_BOOTLOADER_MODE_FIRMWARE_UPDATER
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