zephyr: Add Kconfig option CONFIG_BOOT_KEY_IMPORT_BYPASS_ASN

The option enables MCUboot configuration option MCUBOOT_KEY_IMPORT_BYPASS_ASN. Signed-off-by: Dominik Ermel <[email protected]>
mcu-tools · Jan 22, 2025 · e27d7fa · e27d7fa
1 parent e8cbe2d
commit e27d7fa
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/boot/zephyr/Kconfig b/boot/zephyr/Kconfig
@@ -182,6 +182,15 @@ config BOOT_ED25519_MBEDTLS
 	select BOOT_USE_MBEDTLS
 	select MBEDTLS
 endchoice
+
+config BOOT_KEY_IMPORT_BYPASS_ASN
+	bool "Directly access key value without ASN.1 parsing"
+	help
+	  Originally, public keys compiled into MCUboot were
+	  stored in ASN.1 encoded format. Enabling this option
+	  bypasses the ASN.1 decoding and directly accesses the key
+	  in ASN.1 bitstream; this reduces MCUboot code by removing
+	  the ASN.1 processing.
 endif
 
 endchoice