menuconfig CRYPT_PW bool "Add crypt support for password-based unlock" depends on AUTOBOOT_KEYED && AUTOBOOT_ENCRYPTION help Enable support for crypt-style hashed passphrases. This will then be used as the mechanism of choice to verify whether the entered password to unlock the console is correct or not. if CRYPT_PW config CRYPT_PW_SHA256 bool "Provide sha256crypt" select SHA256 select SHA256_ALGO help Enables support for the sha256crypt password-hashing algorithm. The prefix is "$5$". config CRYPT_PW_SHA512 bool "Provide sha512crypt" select SHA512 select SHA512_ALGO help Enables support for the sha512crypt password-hashing algorithm. The prefix is "$6$". endif