keysrc_encryption - 2022.2 English

Syntax

[keysrc_encryption] <options> <partition>

Description

This specifies the Key source for encryption.

Arguments

• bbram_red_key: RED key stored in BBRAM
• efuse_red_key: RED key stored in efuse
• efuse_gry_key: Grey (Obfuscated) Key stored in eFUSE.
• bh_gry_key: Grey (Obfuscated) Key stored in boot header.
• bh_blk_key: Black Key stored in boot header.
• efuse_blk_key: Black Key stored in eFUSE.
• kup_key: User Key.

Example

all:
{
	[keysrc_encryption]efuse_gry_key
	[bootloader,encryption=aes, aeskeyfile=encr.nky, destination_cpu=a53-0]fsbl.elf
}

FSBL is encrypted using the key encr.nky, which is stored in the efuse for decryption purpose.