Help¶

Crypto implementation to use for signature verification of firmware in Bootloader.

Direct dependencies¶

SECURE_BOOT_CRYPTO

(Includes any dependencies from ifs and menus.)

Defaults¶

Choice options¶

Kconfig definition¶

At <nRF>/subsys/bootloader/bl_crypto/Kconfig:34

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:9 → <BuildDir>/Kconfig/Kconfig.modules:1 → <nRF>/Kconfig.nrf:25 → <nRF>/subsys/Kconfig:8 → <nRF>/subsys/bootloader/Kconfig:225

Menu path: (Top) → Modules → Nordic nRF Connect → Bootloader → Secure Boot Crypto

choice SB_CRYPTO_SIG
    bool "Firmware verification Algorithm"
    default SB_CRYPTO_NO_ECDSA_SECP256R1 if !IS_SECURE_BOOTLOADER || SB_VALIDATE_FW_HASH
    default SB_CRYPTO_CC310_ECDSA_SECP256R1 if HAS_HW_NRF_CC310
    default SB_CRYPTO_OBERON_ECDSA_SECP256R1
    depends on SECURE_BOOT_CRYPTO
    help
      Crypto implementation to use for signature verification of firmware in Bootloader.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)